US3649104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four component objective
Assignee: Ernst Leitz Wetzlar GmbH
•
Filing: 1970-07-30
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Granted: 1972-03-14
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Expires: 1990-07-30
Abstract
Abstract A four component objective for picture taking and projection comprises convex front surfaces on the first, second, and fourth component lenses in the direction of light travel. The refractive power phi 11 of the first surface of the first lens ranges between 1.5 and 2.0 while the refractive power phi 21 of the first surface of the second lens and phi 22 of the second surface of the second lens range from 1.4 to 2.4 and from -2.0 to -1.0 respectively. The refractive power phi 32 of the second surface of the third lens lies between -3.7 and -2.5.
Inventors
- 👤 Garry Edwards
- 👤 Walter Mandler
- 👤 Erich Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:22
CPC Classifications
G; G02; G02B; G02B13/00; G02B9/00; G02B9/34
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
256 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, Second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table1.5 < OR = phi 11 < OR = 2.0 1.4 < OR = phi 21 < OR = 2.4 -2.0 < OR = phi 22 < OR = -1.0 -3.7 < OR = phi 32 < OR = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2 field angle 45* ne ve phi ii r1 41.155 1.791 a1 9.6282 1.7369 51.4 r2 153.450 a2 0.1926 r3 35.861 2.055 a3 8.0936 1.7369 51.4 r4 57.796 - 1.275 a4 3.0779 r5 172.479 a5 1.1554 1.7686 26.3 r6 24.533 - 3.133 a6 22.4142 r7 98.823 a7 12.0489 1.7546 34.7 r8 -372.074 s'' 49.4781 wherein s'' is the back focal distance, ne is the refractive index, ve is the Abbe number, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 2
Dependent Claim
256 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, Second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table1.5 < OR = phi 11 < OR = 2.0 1.4 < OR = phi 21 < OR = 2.4 -2.0 < OR = phi 22 < OR = -1.0 -3.7 < OR = phi 32 < OR = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2 field angle 45* ne ve phi ii r1 41.155 1.791 a1 9.6282 1.7369 51.4 r2 153.450 a2 0.1926 r3 35.861 2.055 a3 8.0936 1.7369 51.4 r4 57.796 - 1.275 a4 3.0779 r5 172.479 a5 1.1554 1.7686 26.3 r6 24.533 - 3.133 a6 22.4142 r7 98.823 a7 12.0489 1.7546 34.7 r8 -372.074 s'' 49.4781 wherein s'' is the back focal distance, ne is the refractive index, ve is the Abbe number, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 3
Dependent Claim
245 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2 field angle 45* ne ve phi ii r1 37.848 1.834 a1 10.5614 1.6940 54.48 r2 172.102 a2 0.1920 r3 31.350 2.148 a3 6.1458 1.6734 46.82 r4 50.887 - 1.323 a4 2.9764 r5 161.342 a5 1.5362 1.7471 27.38 r6 22.680 - 3.294 a6 22.0830 r7 89.041 a7 17.2824 1.7546 34.72 r8 -1069.902 s'' 45.9771 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1- a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 4
Dependent Claim
245 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2 field angle 45* ne ve phi ii r1 37.848 1.834 a1 10.5614 1.6940 54.48 r2 172.102 a2 0.1920 r3 31.350 2.148 a3 6.1458 1.6734 46.82 r4 50.887 - 1.323 a4 2.9764 r5 161.342 a5 1.5362 1.7471 27.38 r6 22.680 - 3.294 a6 22.0830 r7 89.041 a7 17.2824 1.7546 34.72 r8 -1069.902 s'' 45.9771 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1- a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 5
Dependent Claim
247 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 where phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digi refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2 field angle 45* ne v3 phi ii r1 37.8820 1.832 a1 10.3776 1.6940 54.5 r2 190.3362 a2 0.1922 r3 32.1397 2.095 a3 5.9575 1.6734 46.8 r4 49.9450 - 1.348 a4 3.2670 r5 200.4813 a5 1.5374 1.7471 27.4 r6 23.4264 - 3.189 a6 21.9082 r7 95.2488 a7 11.5306 1.7546 34.7 r8 - 424.3870 s'' 50.5074 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi 11 indicates the refractive power of several lens surfaces.
Claim 6
Dependent Claim
247 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 where phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digi refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2 field angle 45* ne v3 phi ii r1 37.8820 1.832 a1 10.3776 1.6940 54.5 r2 190.3362 a2 0.1922 r3 32.1397 2.095 a3 5.9575 1.6734 46.8 r4 49.9450 - 1.348 a4 3.2670 r5 200.4813 a5 1.5374 1.7471 27.4 r6 23.4264 - 3.189 a6 21.9082 r7 95.2488 a7 11.5306 1.7546 34.7 r8 - 424.3870 s'' 50.5074 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi 11 indicates the refractive power of several lens surfaces.
Claim 7
Dependent Claim
243 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 27* ne ve phi ii r1 44.661 1.524 a1 6.4232 1.6808 54.93 r2 907.494 a2 0.1107 r3 44.217 1.450 a3 14.3968 1.6413 55.15 r4 53.141 - 1.207a4 2.2149 r5 - 283.639 a5 1.9602 1.7343 28.19 r6 28.296 - 2.595a6 25.3272r7 106.334 a7 4.9835 1.6413 55.15 r8 77.780 s'' 58.6533 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and ii indicates the refractive power of several lens surfaces.
Claim 8
Dependent Claim
243 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 27* ne ve phi ii r1 44.661 1.524 a1 6.4232 1.6808 54.93 r2 907.494 a2 0.1107 r3 44.217 1.450 a3 14.3968 1.6413 55.15 r4 53.141 - 1.207a4 2.2149 r5 - 283.639 a5 1.9602 1.7343 28.19 r6 28.296 - 2.595a6 25.3272r7 106.334 a7 4.9835 1.6413 55.15 r8 77.780 s'' 58.6533 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and ii indicates the refractive power of several lens surfaces.
Claim 9
Dependent Claim
245 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 27* ne ve phi ii r1 37.423 1.854 a1 6.6664 1.6940 54.48 r2 248.983 a2 0.1111 r3 35.273 2.043 a3 8.9676 1.7206 47.69 r4 45.552 - 1.581 a4 2.2221 r5 326.449 a5 1.6666 1.7617 27.37 r6 24.099 - 3.161 a6 23.3945 r7 95.187a7 4.4443 1.6713 41.64 r8 165.060 s'' 56.4679 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 10
Dependent Claim
245 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 27* ne ve phi ii r1 37.423 1.854 a1 6.6664 1.6940 54.48 r2 248.983 a2 0.1111 r3 35.273 2.043 a3 8.9676 1.7206 47.69 r4 45.552 - 1.581 a4 2.2221 r5 326.449 a5 1.6666 1.7617 27.37 r6 24.099 - 3.161 a6 23.3945 r7 95.187a7 4.4443 1.6713 41.64 r8 165.060 s'' 56.4679 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 11
Dependent Claim
246 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 27* ne ve phi ii r1 44.661 1.524 a1 6.4232 1.6808 54.9 r2 907.494 a2 0.1107 r3 44.217 1.450 a3 14.3968 1.6413 55.2 r4 53.141 - 1.207 a4 2.2149 r5 -283.639 a5 1.9602 1.7343 28.2 r6 28.296 - 2.595 a6 25.3272 r7 106.334 a7 4.9835 1.6413 55.2 r8 -77.780 s'' 58.6533 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 12
Dependent Claim
246 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 27* ne ve phi ii r1 44.661 1.524 a1 6.4232 1.6808 54.9 r2 907.494 a2 0.1107 r3 44.217 1.450 a3 14.3968 1.6413 55.2 r4 53.141 - 1.207 a4 2.2149 r5 -283.639 a5 1.9602 1.7343 28.2 r6 28.296 - 2.595 a6 25.3272 r7 106.334 a7 4.9835 1.6413 55.2 r8 -77.780 s'' 58.6533 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 13
Dependent Claim
244 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.8 field angle 16.5* ne ve phi ii r1 32.1200 1.946 a1 10.6662 1.6251 52.9 r2 638.5319 a2 0.0670 r3 28.6428 2.351 a3 5.3629 1.6734 46.8 r4 43.1469 - 1.561 a4 2.3535 r5 668.6314 a5 2.0111 1.7471 27.4 r6 20.5977 - 3.627 r7 72.5975 a7 6.7037 1.7044 29.8 r8 1526.3602 s'' 50.6831 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 14
Dependent Claim
244 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.8 field angle 16.5* ne ve phi ii r1 32.1200 1.946 a1 10.6662 1.6251 52.9 r2 638.5319 a2 0.0670 r3 28.6428 2.351 a3 5.3629 1.6734 46.8 r4 43.1469 - 1.561 a4 2.3535 r5 668.6314 a5 2.0111 1.7471 27.4 r6 20.5977 - 3.627 r7 72.5975 a7 6.7037 1.7044 29.8 r8 1526.3602 s'' 50.6831 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 15
Dependent Claim
245 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:4.3 field angle 14* ne ve phi ii r1 40.384 1.653 a1 6.7204 1.6675 50.59 r2 -510.033 a2 0.1400 r3 38.367 1.685 a3 12.8808 1.6466 55.15 r4 41.767 - 1.548 a4 2.1561 r5 -116.219 a5 1.9041 1.7747 27.37 r6 27.442 -2.823 a6 22.8493 r7 138.645 a7 5.6003 1.6800 46.82 r8 -69.455 s'' 78.2068 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 16
Dependent Claim
245 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:4.3 field angle 14* ne ve phi ii r1 40.384 1.653 a1 6.7204 1.6675 50.59 r2 -510.033 a2 0.1400 r3 38.367 1.685 a3 12.8808 1.6466 55.15 r4 41.767 - 1.548 a4 2.1561 r5 -116.219 a5 1.9041 1.7747 27.37 r6 27.442 -2.823 a6 22.8493 r7 138.645 a7 5.6003 1.6800 46.82 r8 -69.455 s'' 78.2068 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 17
Dependent Claim
242 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 12* ne ve phi ii r1 38.6911.529 a1 6.4859 1.5914 61.03 r2 545.365 a2 0.0997 r3 37.3641.529 a3 16.1502 1.5712 55.85 r4 52.491 -1.088 a4 2.4946 r5 -299.255 a5 1.4959 1.7686 26.31 r6 24.237 -3.171 a6 19.7906 r7 73.234 a7 2.9917 1.6241 36.11 r8 -92.756 s'' 54.1134 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 18
Dependent Claim
242 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 12* ne ve phi ii r1 38.6911.529 a1 6.4859 1.5914 61.03 r2 545.365 a2 0.0997 r3 37.3641.529 a3 16.1502 1.5712 55.85 r4 52.491 -1.088 a4 2.4946 r5 -299.255 a5 1.4959 1.7686 26.31 r6 24.237 -3.171 a6 19.7906 r7 73.234 a7 2.9917 1.6241 36.11 r8 -92.756 s'' 54.1134 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 19
Dependent Claim
243 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:4 field angle 10* ne ve phi ii r1 28.184 1.840 a1 4.5147 1.5187 63.96 r2 303.966 a2 0.1003 r3 25.8782.004 a3 9.2791 1.5187 63.96 r4 28.204 -1.839 a4 2.0065 r5 -517.357 a5 1.5049 1.6942 30.95 r6 20.302 -3.419 a6 12.3708 r7 55.620 a7 3.0098 1.5854 41.80 r8 -96.007 s'' 68.4689 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 20
Dependent Claim
243 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:4 field angle 10* ne ve phi ii r1 28.184 1.840 a1 4.5147 1.5187 63.96 r2 303.966 a2 0.1003 r3 25.8782.004 a3 9.2791 1.5187 63.96 r4 28.204 -1.839 a4 2.0065 r5 -517.357 a5 1.5049 1.6942 30.95 r6 20.302 -3.419 a6 12.3708 r7 55.620 a7 3.0098 1.5854 41.80 r8 -96.007 s'' 68.4689 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 21
Dependent Claim
243 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.8 field angle 10* ne ve phi ii r1 32.779 1.582 a1 6.9878 1.5187 63.96 r2 Infinity a2 0.0998 r3 31.0571.670 a3 12.4429 1.5187 63.96 r4 46.253 -1.121 a4 1.9965 r5 -248.654 a5 1.4974 1.6942 30.95 r6 21.283 -3.262 a6 22.9799 r7 62.076 a7 2.9948 1.5854 41.80 r8 -127.799 s'' 55.3021 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 22
Dependent Claim
243 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.8 field angle 10* ne ve phi ii r1 32.779 1.582 a1 6.9878 1.5187 63.96 r2 Infinity a2 0.0998 r3 31.0571.670 a3 12.4429 1.5187 63.96 r4 46.253 -1.121 a4 1.9965 r5 -248.654 a5 1.4974 1.6942 30.95 r6 21.283 -3.262 a6 22.9799 r7 62.076 a7 2.9948 1.5854 41.80 r8 -127.799 s'' 55.3021 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 23
Dependent Claim
243 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in thE direction of light travel, the objective having substantially the following data: relative aperture f:2.8 field angle 10* ne ve phi ii r1 31.5893 1.642 a1 6.9863 1.5187 64.0 r2 Infinity a2 0.0998 r3 31.8141 1.630 a3 11.5300 1.5187 64.0 r4 43.2309 -1.200 a4 2.3954 r5 -156.3477 a5 1.4971 1.6942 31.0 r6 21.9650 -3.160 a6 18.9835 r7 67.0252 a7 2.9941 1.5854 41.8 r8 -91.6156 s'' 59.5668 wherein s'' is the focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 24
Dependent Claim
243 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in thE direction of light travel, the objective having substantially the following data: relative aperture f:2.8 field angle 10* ne ve phi ii r1 31.5893 1.642 a1 6.9863 1.5187 64.0 r2 Infinity a2 0.0998 r3 31.8141 1.630 a3 11.5300 1.5187 64.0 r4 43.2309 -1.200 a4 2.3954 r5 -156.3477 a5 1.4971 1.6942 31.0 r6 21.9650 -3.160 a6 18.9835 r7 67.0252 a7 2.9941 1.5854 41.8 r8 -91.6156 s'' 59.5668 wherein s'' is the focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 25
Dependent Claim
243 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.8 field angle 8* ne ve phi ii r1 33.172 1.564 a1 7.0071 1.5187 63.96 r2 Infinity a2 0.1001 r3 31.231 1.661 a3 12.6516 1.5187 63.96 r4 49.937 -1.039 a4 2.0020 r5 -277.429 a5 1.5015 1.6942 30.95 r6 21.146 -3.283 a624.9799 r7 60.094 a7 3.0031 1.5854 41.80 r8 -150.093 s'' 53.3337 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 26
Dependent Claim
243 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.8 field angle 8* ne ve phi ii r1 33.172 1.564 a1 7.0071 1.5187 63.96 r2 Infinity a2 0.1001 r3 31.231 1.661 a3 12.6516 1.5187 63.96 r4 49.937 -1.039 a4 2.0020 r5 -277.429 a5 1.5015 1.6942 30.95 r6 21.146 -3.283 a624.9799 r7 60.094 a7 3.0031 1.5854 41.80 r8 -150.093 s'' 53.3337 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 27
Dependent Claim
242 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 22 < or = -2.5 wherein phi denotes the refractive power and the index assoCiated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:4.3field angle 8* ne ve phi ii r1 30.695 1.689 a1 4.4969 1.5187 63.96 r2 290.142 a2 0.0999 r3 30.545 1.698 a3 11.4393 1.5187 63.96 r4 31.148 - 1.665 a4 1.9986 r5 -143.227 a5 1.4990 1.7044 29.84 r6 23.894 -2.948 a6 9.7600 r7 61.005a7 2.9980 1.5854 41.80 r8 -60.101s'' 68.5721 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 28
Dependent Claim
242 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 22 < or = -2.5 wherein phi denotes the refractive power and the index assoCiated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:4.3field angle 8* ne ve phi ii r1 30.695 1.689 a1 4.4969 1.5187 63.96 r2 290.142 a2 0.0999 r3 30.545 1.698 a3 11.4393 1.5187 63.96 r4 31.148 - 1.665 a4 1.9986 r5 -143.227 a5 1.4990 1.7044 29.84 r6 23.894 -2.948 a6 9.7600 r7 61.005a7 2.9980 1.5854 41.80 r8 -60.101s'' 68.5721 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 29
Dependent Claim
246 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table 1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:4.0 field angle 7* ne ve phi ii r1 28.203 1.839 a1 4.5176 1.5187 63.96 r2 305.001 a2 0.1004 r3 25.901 2.003 a3 9.2850 1.5187 63.96 r4 28.244 - 1.837 a4 2.0078 r5 -516.980 a5 1.5059 1.6942 30.95 r6 20.313 - 3.417 a6 12.3787 r7 55.572a7 3.0117 1.5854 41.80 r8 -96.291 s'' 70.2337 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 30
Dependent Claim
246 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table 1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:4.0 field angle 7* ne ve phi ii r1 28.203 1.839 a1 4.5176 1.5187 63.96 r2 305.001 a2 0.1004 r3 25.901 2.003 a3 9.2850 1.5187 63.96 r4 28.244 - 1.837 a4 2.0078 r5 -516.980 a5 1.5059 1.6942 30.95 r6 20.313 - 3.417 a6 12.3787 r7 55.572a7 3.0117 1.5854 41.80 r8 -96.291 s'' 70.2337 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 31
Dependent Claim
246 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:4.0 field angle 6* ne ve phi ii r1 30.050 1.726 a1 4.5022 1.5187 63.96 r2 363.927 a2 0.1000 r3 30.452 1.703 a3 10.3508 1.5187 63.96 r4 31.892 - 1.626 a4 2.0010 r5 -141.468 a5 1.3744 1.6942 30.95 r6 24.043 - 2.887 a6 10.1405 r7 68.038 a7 3.0015 1.5854 41.80 r8 -61.405 s'' 69.5493 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 32
Dependent Claim
246 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:4.0 field angle 6* ne ve phi ii r1 30.050 1.726 a1 4.5022 1.5187 63.96 r2 363.927 a2 0.1000 r3 30.452 1.703 a3 10.3508 1.5187 63.96 r4 31.892 - 1.626 a4 2.0010 r5 -141.468 a5 1.3744 1.6942 30.95 r6 24.043 - 2.887 a6 10.1405 r7 68.038 a7 3.0015 1.5854 41.80 r8 -61.405 s'' 69.5493 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 33
Dependent Claim
245 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 27* ne ve phi ii r1 42.003 1.620 a1 6.9191 1.6808 54.93 r2 555.241 a2 0.1111 r3 41.393 1.549 a3 13.1941 1.6413 55.15 r4 53.898 -1.190 a4 2.2212 r5 -518.724 a5 1.9658 1.7617 27.37 r6 27.059 - 2.815 a6 23.4466 r7 101.535 a7 5.7641 1.6734 46.82 r8 -101.535 s'' 55.9258 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 34
Dependent Claim
245 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 27* ne ve phi ii r1 42.003 1.620 a1 6.9191 1.6808 54.93 r2 555.241 a2 0.1111 r3 41.393 1.549 a3 13.1941 1.6413 55.15 r4 53.898 -1.190 a4 2.2212 r5 -518.724 a5 1.9658 1.7617 27.37 r6 27.059 - 2.815 a6 23.4466 r7 101.535 a7 5.7641 1.6734 46.82 r8 -101.535 s'' 55.9258 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 35
Dependent Claim
246 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 20.5* ne ve phi ii r1 35.9214 1.785 a1 7.0802 1.6413 55.2 r2 381.6318 a2 0.0833 r3 30.8445 2.183 a3 8.3296 1.6734 46.8 r4 59.1201 - 1.139 a4 2.3168 r5 229.2469 a5 2.0824 1.7471 27.4 r6 20.3292 - 3.675 a6 37.2798 r7 62.8734 a7 7.4966 1.7044 29.8 r8 226.7839 s'' 36.1438 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surface.
Claim 36
Dependent Claim
246 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:2.5 field angle 20.5* ne ve phi ii r1 35.9214 1.785 a1 7.0802 1.6413 55.2 r2 381.6318 a2 0.0833 r3 30.8445 2.183 a3 8.3296 1.6734 46.8 r4 59.1201 - 1.139 a4 2.3168 r5 229.2469 a5 2.0824 1.7471 27.4 r6 20.3292 - 3.675 a6 37.2798 r7 62.8734 a7 7.4966 1.7044 29.8 r8 226.7839 s'' 36.1438 wherein s'' is the back focal distance, r1 - r8 are the radii of the surfaces, a1 - a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surface.
Claim 37
Dependent Claim
242 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:3.4 field angle 12* ne ve phi ii r1 32.090 1.616 a1 4.5168 1.5187 63.96 r2 229.126 a2 0.1004 r3 32.540 1.594 a3 12.5588 1.5187 63.96 r4 34.542 - 1.501 a4 2.0075 r5 -203.589 a5 1.3789 1.6942 30.95 r6 23.829 - 2.913 a6 12.6369 r7 60.386 a7 4.6484 1.5919 48.36 r8 -65.945 s'' 70.5338 wherein s'' is the back focal distance, r1-r8 are the radii of the surfaces, a1-a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
Claim 38
Dependent Claim
242 words
Four component objective for picture taking and projection comprising four lenses of which the front refracting surfaces of the first, second, and fourth lens are convex and wherein the front surfaces of the first phi 11 and second phi 21 lens and the rear surfaces of the second phi 22 and third phi 32 lens have refractive powers within the ranges given in the following Table-1.5 < or = phi 11 < or = 2.0 1.4 < or = phi 21 < or = 2.4 -2.0 < or = phi 22 < or = -1.0 -3.7 < or = phi 32 < or = -2.5 wherein phi denotes the refractive power and the index associated with phi indicates in its first digit the number of the lens in the direction of light travel and its second digit refers to the lens surface also in the direction of light travel, the objective having substantially the following data: relative aperture f:3.4 field angle 12* ne ve phi ii r1 32.090 1.616 a1 4.5168 1.5187 63.96 r2 229.126 a2 0.1004 r3 32.540 1.594 a3 12.5588 1.5187 63.96 r4 34.542 - 1.501 a4 2.0075 r5 -203.589 a5 1.3789 1.6942 30.95 r6 23.829 - 2.913 a6 12.6369 r7 60.386 a7 4.6484 1.5919 48.36 r8 -65.945 s'' 70.5338 wherein s'' is the back focal distance, r1-r8 are the radii of the surfaces, a1-a7 are the axial thicknesses and phi ii indicates the refractive power of several lens surfaces.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |