US3580660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image-forming apparatus
Assignee: Farrand Optical Co Inc
•
Filing: 1966-04-25
•
Granted: 1971-05-25
•
Expires: 1986-04-25
Abstract
Abstract An object plane, the plane passing through the optical center of a lens and perpendicular to its axis, and the plane of an imagereceiving means intersect in a common line to produce in the image plane a distorted image of an object in the object plane. A relay lens translates the image in the image plane to the focal plane of an infinity sight to present at infinity an image of the object in the object plane. A vari-focal lens produces at the object plane as an object an image at variable magnification of an initial object such as a slide or film strip.
Inventors
- 👤 Joseph La Russa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:56
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/30; G09B9/32; G09B9/326
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
154 words
Image-forming apparatus comprising means to support an object in a first substantially plane position, lens means having an optical axis to form in a second substantially plane position an image of said object at variable magnification, projection lens means optically coaxial with said first-named lens means to form an image of said first-named image at a third substantially plane location oblique to the optical axis of said projection lens means, a plurality of plane reflecting means positioned to deviate the optical axis of said projection lens means on the side thereof optically remote from said first-named lens means, means to impose independent translational motions in the plane of said first position on an object in said first position, and means to rotate an object in said first position within the plane of said first position about an axis eccentric of the optical axis of said first lens means as produced to said first position.
Claim 2
Dependent Claim
154 words
Image-forming apparatus comprising means to support an object in a first substantially plane position, lens means having an optical axis to form in a second substantially plane position an image of said object at variable magnification, projection lens means optically coaxial with said first-named lens means to form an image of said first-named image at a third substantially plane location oblique to the optical axis of said projection lens means, a plurality of plane reflecting means positioned to deviate the optical axis of said projection lens means on the side thereof optically remote from said first-named lens means, means to impose independent translational motions in the plane of said first position on an object in said first position, and means to rotate an object in said first position within the plane of said first position about an axis eccentric of the optical axis of said first lens means as produced to said first position.
Claim 3
Dependent Claim
148 words
Image-forming apparatus comprising means to support an object in a first substantially plane position, lens means having an optical axis to form in a second substantially plane position an image of said object at variable maGnification, projection lens means optically coaxial with said first-named lens means to form an image of said first-named image at a third substantially plane location oblique to the optical axis of said projection lens means, a plurality of plane reflecting means positioned to deviate the optical axis of said projection lens means on the side thereof optically remote from said first-named lens means, a diffusing screen disposed adjacent said third location as defined by said projection lens means in conjunction with said plane reflecting means, sight means to form at infinity an image of said diffusing screen, and means to rotate said plane reflecting means about the optical axis of said sight means.
Claim 4
Dependent Claim
148 words
Image-forming apparatus comprising means to support an object in a first substantially plane position, lens means having an optical axis to form in a second substantially plane position an image of said object at variable maGnification, projection lens means optically coaxial with said first-named lens means to form an image of said first-named image at a third substantially plane location oblique to the optical axis of said projection lens means, a plurality of plane reflecting means positioned to deviate the optical axis of said projection lens means on the side thereof optically remote from said first-named lens means, a diffusing screen disposed adjacent said third location as defined by said projection lens means in conjunction with said plane reflecting means, sight means to form at infinity an image of said diffusing screen, and means to rotate said plane reflecting means about the optical axis of said sight means.
Claim 5
Dependent Claim
103 words
Image-forming apparatus comprising means to support an object in a first plane, lens means having an optical axis and an optical center, said optical axis being optically nonperpendicular to said plane, image-receiving means located in a plane optically intersecting said first plane substantially at the optical intersection with said first plane of the plane passing through the optical center of said lens means and perpendicular to said optical axis, sight means having a focal plane to form at infinity an image of an object in said focal plane, and means to translate to said focal plane an image of said image receiving means.
Claim 6
Dependent Claim
103 words
Image-forming apparatus comprising means to support an object in a first plane, lens means having an optical axis and an optical center, said optical axis being optically nonperpendicular to said plane, image-receiving means located in a plane optically intersecting said first plane substantially at the optical intersection with said first plane of the plane passing through the optical center of said lens means and perpendicular to said optical axis, sight means having a focal plane to form at infinity an image of an object in said focal plane, and means to translate to said focal plane an image of said image receiving means.
Claim 7
Dependent Claim
43 words
Image-forming apparatus according to claim 3 wherein said lens means includes a first lens positioned to form at variable magnification an intermediate image of said object and a projection lens positioned to form an image of said intermediate image on said image-receiving means.
Claim 8
Dependent Claim
60 words
Image-forming apparatus according to claim 3 including a plurality of plane reflecting means positioned to deviate the optical axis of said projection lens on the side thereof optically remote from said first lens, and separate means to move at least two of said plane reflecting means parallel to the optical axis of said projection lens as optically incident thereon respectively.
Claim 9
Dependent Claim
20 words
Image-forming apparatus according to claim 3 including separate means to translate an object in two directions in said first plane.
Claim 10
Dependent Claim
25 words
Image-forming apparatus according to claim 3 including in said first plane a continuous strip film record of a succession of rectified forward oblique topographical photographs.
References Cited (Backward Citations)
GB190615729A
Cited
US2021507A
Cited
US2938279A
Cited
US3134295A
Cited
US3234665A
Cited
US3175461A
Cited
US3208341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |