High speed catadioptric objective lens system

Claim 2

A high speed catadioptric objective system lens of the type in which a first single lens (L 1 ) is convergent, with a main mirror (M 1 ), a counter mirror (M 2 ) and a field lens system (L 2 , L 4 ) adjacent to the focal point, wherein only two optical members carry said mirrors and of which at least one member carries an additional lens element, said counter mirror (M 2 ) surfaced on the central portion of said first single lens (L 1 ) facing the image side and at least one element (L 2 ) of said field lens system cemented to the central portion (L 4 ) of said optical member carrying the main mirror (M 1 ) and facing the object side, the elements having the following numerical values: ______________________________________ F = 1:1.2 Thicknesses f = 99.7 and s' = 8.7 Separations n.sub.d ν.sub.d ______________________________________ L.sub.1 r1 = +747.831 d1 = 7.5 1.76180 27.0 r2 = -2214.349 a2 = 46.9 M.sub.1 r3 = -137.033 d3 = 8 1.68900 49.4 r4 = -198.791 d4 = d3 r5 = r3 a5 = a2 M.sub.2 r6 = r2 a6 = 41.9 L.sub.2 r7 = +37.388 d7 = 5 1.46450 65.8 r8 = r3 d8 = d3 L.sub.4 r8 = r3 d8 = d3 1.68900 49.4 r9 = r4 ______________________________________ where f is the focal length of the system, r is the radius of curvature of the indicated elements, and L 4 is the central portion of the main mirror (M 1 ).

Claim 3

A high speed catadioptric objective system lens of the type in which a first sinle lens (L 1 ) is convergent, with a main mirror (M 1 ), a counter mirror (M 2 ) and a field lens system (L 2 , L 3 , L 4 ) adjacent to the focal point wherein only two optical members carry said mirrors and of which at least one member carries an additional lens element, said counter mirror (M 2 ) surfaced on the central portion of said first single lens (L 1 ) facing the image side and at least one element (L 2 ) of said field lens system cemented to the central portion (L 4 ) of said optical member carrying the main mirror (M 1 ) and facing the object side, the elements having the following numerical values: ______________________________________ F = 1:1.2 Thicknesses f = 99.5 and s' = 9.0 Separations n.sub.d ν.sub.d ______________________________________ L.sub.1 r1 = + 639.795 d1 = 7.5 1.74000 28.2 r2 = - 2444.988 a2 = 47.1 M.sub.1 r3 = - 138.122 d3 = 8 1.68900 49.4 r4 = - 201.857 d4 = d3 r5 = r3 a5 = a2 M.sub.2 r6 = r2 a6 = 39.7 L.sub.3 r7 = + 37.94 d7 = 2.5 1.59551 39.2 r8 = + 29.527 d8 = 4.9 L.sub.2 r8 = + 29.527 d8 = 4.9 1.46450 65.8 r9 = r3 d9 = d3 L.sub.4 r9 = r3 d9 = d3 1.68900 49.4 r10 = r4 ______________________________________ where f is the focal length of the system, r is the radius of curvature of the indicated elements, and L 4 is the central portion of the main mirror (M 1 ).

Claim 4

A high speed catadioptric objective system lens of the type in which a first sinle lens (L 1 ) is convergent, with a main mirror (M 1 ), a counter mirror (M 2 ) and a field lens system (L 2 , L 3 , L 4 ) adjacent to the focal point wherein only two optical members carry said mirrors and of which at least one member carries an additional lens element, said counter mirror (M 2 ) surfaced on the central portion of said first single lens (L 1 ) facing the image side and at least one element (L 2 ) of said field lens system cemented to the central portion (L 4 ) of said optical member carrying the main mirror (M 1 ) and facing the object side, the elements having the following numerical values: ______________________________________ F = 1:1.2 Thicknesses f = 99.5 and s' = 9.0 Separations n.sub.d ν.sub.d ______________________________________ L.sub.1 r1 = + 639.795 d1 = 7.5 1.74000 28.2 r2 = - 2444.988 a2 = 47.1 M.sub.1 r3 = - 138.122 d3 = 8 1.68900 49.4 r4 = - 201.857 d4 = d3 r5 = r3 a5 = a2 M.sub.2 r6 = r2 a6 = 39.7 L.sub.3 r7 = + 37.94 d7 = 2.5 1.59551 39.2 r8 = + 29.527 d8 = 4.9 L.sub.2 r8 = + 29.527 d8 = 4.9 1.46450 65.8 r9 = r3 d9 = d3 L.sub.4 r9 = r3 d9 = d3 1.68900 49.4 r10 = r4 ______________________________________ where f is the focal length of the system, r is the radius of curvature of the indicated elements, and L 4 is the central portion of the main mirror (M 1 ).

Claim 5

A high speed catadioptric objective system lens of the type in which a first single lens (L 1 ) is convergent, with main mirror (M 1 ), counter mirror (M 2 ) and a field lens system (L 2 , L 4 ) adjacent to the focal point, wherein only the optical members carry said mirrors and of which at least one member carries an additional lens element, said counter mirror (M 2 ) surfaced on the central portion of said first single lens (L 1 ) facing the object side, said additional lens element (L 5 ) cemented to the central portion of said first single lens (L 1 ) facing the image side, and said field lens (L 2 ) cemented to the central portion (L 4 ) of said optical member carrying the main mirror (M 1 ) and facing the object side, the elements having the following numerical values: ______________________________________ F = 1:1.2 Thicknesses f = 99.4 and s' = 7.6 Separations n.sub.d ν.sub.d ______________________________________ L.sub.1 r1 = + 343.171 d1 = 7.5 1.51454 54.7 r2 = - 590.667 a2 = 53.7 M.sub.1 r3 = - 267.451 d3 = 8 1.51680 64.2 r4 = - 420.875 d4 = d3 r5 = r3 a5 = 48.9 L.sub.5 r6 = + 212.359 d6 = 4.8 1.58215 42.1 r7 = r2 d7 = d1 M.sub.2 r8 = r1 d8 = d1 L.sub.5 r9 = r2 d9 = d6 1.58215 42.1 r10 = r6 a10 = 40.9 L.sub.2 r11 = + 35.652 d11 = 8 1.56883 56.1 r12 = r3 d12 = d3 L.sub.4 r12 = r3 d12 = d3 1.51680 64.2 r13 = r4 ______________________________________ where f is the focal length of the system, r is the radius of curvature of the indicated elements, and L 4 is the central portion of the main mirror (M 1 ).

Claim 6

A high speed catadioptric objective system lens of the type in which a first single lens (L 1 ) is convergent, with main mirror (M 1 ), counter mirror (M 2 ) and a field lens system (L 2 , L 4 ) adjacent to the focal point, wherein only the optical members carry said mirrors and of which at least one member carries an additional lens element, said counter mirror (M 2 ) surfaced on the central portion of said first single lens (L 1 ) facing the object side, said additional lens element (L 5 ) cemented to the central portion of said first single lens (L 1 ) facing the image side, and said field lens (L 2 ) cemented to the central portion (L 4 ) of said optical member carrying the main mirror (M 1 ) and facing the object side, the elements having the following numerical values: ______________________________________ F = 1:1.2 Thicknesses f = 99.4 and s' = 7.6 Separations n.sub.d ν.sub.d ______________________________________ L.sub.1 r1 = + 343.171 d1 = 7.5 1.51454 54.7 r2 = - 590.667 a2 = 53.7 M.sub.1 r3 = - 267.451 d3 = 8 1.51680 64.2 r4 = - 420.875 d4 = d3 r5 = r3 a5 = 48.9 L.sub.5 r6 = + 212.359 d6 = 4.8 1.58215 42.1 r7 = r2 d7 = d1 M.sub.2 r8 = r1 d8 = d1 L.sub.5 r9 = r2 d9 = d6 1.58215 42.1 r10 = r6 a10 = 40.9 L.sub.2 r11 = + 35.652 d11 = 8 1.56883 56.1 r12 = r3 d12 = d3 L.sub.4 r12 = r3 d12 = d3 1.51680 64.2 r13 = r4 ______________________________________ where f is the focal length of the system, r is the radius of curvature of the indicated elements, and L 4 is the central portion of the main mirror (M 1 ).

Claim 7

A high speed catadioptic objective system lens of the typ in which a first single lens (L 1 ) is convergent, with a main mirror (M 1 ), a counter mirror (M 2 ) and a field lens system (L 2 , L 4 ) adjacent to the focal point, wherein only two optical members carry said mirrors and of which at least one member carriers an additional lens elements, said counter mirror (M 2 ) surfaced on the object side of said additional lens element (L 5 ) and cemented to the cental portion of said first single lens (L 1 ) facing the image side, and said field lens (L 2 ) cemented to the central portion (L 4 ) of said optical member carrying the main mirror (M 1 ) and facing the object side, the elements having the following numerical values: ______________________________________ F = 1:1.2 Thicknesses f = 99.3 and s' = 10.0 Separations n.sub.d ν.sub.d ______________________________________ L.sub.1 r1 = + 174.38 d1 = 7.5 1.54041 51.1 r2 = + 1165.501 a2 = 46.7 M.sub.1 r3 = - 205.617 d3 = 8 1.62004 36.4 r4 = - 280.458 d4 = d3 r5 = r3 a5 = 42.4 L.sub.5 r6 = + 369.399 d6 = 4.3 1.62237 36.0 r7 = r2 d7 = d6 M.sub.2 r7 = r2 d7 = d6 L.sub.5 r8 = r6 a8 = 32.4 1.62237 36.0 L.sub.2 r9 = + 37.489 d9 = d10 1.46450 65.8 r10 = r3 d10 = d3 L.sub.4 r10 = r3 d10 = d3 1.62004 36.4 r11 = r4 ______________________________________ where f is the focal length of the system, r is the radius of curvature of the indicated elements, and L 4 is the central portion of the main mirror (M 1 ).

Claim 8

A high speed catadioptic objective system lens of the typ in which a first single lens (L 1 ) is convergent, with a main mirror (M 1 ), a counter mirror (M 2 ) and a field lens system (L 2 , L 4 ) adjacent to the focal point, wherein only two optical members carry said mirrors and of which at least one member carriers an additional lens elements, said counter mirror (M 2 ) surfaced on the object side of said additional lens element (L 5 ) and cemented to the cental portion of said first single lens (L 1 ) facing the image side, and said field lens (L 2 ) cemented to the central portion (L 4 ) of said optical member carrying the main mirror (M 1 ) and facing the object side, the elements having the following numerical values: ______________________________________ F = 1:1.2 Thicknesses f = 99.3 and s' = 10.0 Separations n.sub.d ν.sub.d ______________________________________ L.sub.1 r1 = + 174.38 d1 = 7.5 1.54041 51.1 r2 = + 1165.501 a2 = 46.7 M.sub.1 r3 = - 205.617 d3 = 8 1.62004 36.4 r4 = - 280.458 d4 = d3 r5 = r3 a5 = 42.4 L.sub.5 r6 = + 369.399 d6 = 4.3 1.62237 36.0 r7 = r2 d7 = d6 M.sub.2 r7 = r2 d7 = d6 L.sub.5 r8 = r6 a8 = 32.4 1.62237 36.0 L.sub.2 r9 = + 37.489 d9 = d10 1.46450 65.8 r10 = r3 d10 = d3 L.sub.4 r10 = r3 d10 = d3 1.62004 36.4 r11 = r4 ______________________________________ where f is the focal length of the system, r is the radius of curvature of the indicated elements, and L 4 is the central portion of the main mirror (M 1 ).