Patent US4911546A successfully refreshed from Google Patents.
Patent US4175829A successfully refreshed from Google Patents.
US4175829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-Dimensional camera device
Assignee: Individual
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Filing: 1976-10-22
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Granted: 1979-11-27
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Expires: 1996-10-22
Abstract
Abstract This invention relates to a reflex camera device having a single lens for the photography of right and left images from an object space transmitted as first and second light ray bundles from two positions separated by an interocular distance onto a single frame of a single film strip; a first set of mutually extinguishing filters such as polarizers, one filter of the set along each of the first and second light ray bundles; a single frame aperture; a second set of mutually extinguishing filters near the image plane to separate the first and second light ray bundles from each position respectively into right and left adjacent images onto the single frame; means to control convergence, focus and interocular distance; and a reflex viewer containing a third set of mutually extinguishing filters to enable the simultaneous viewing and photographing of right and left adjacent images.
Inventors
- 👤 Alvin M. Marks
- 👤 Mortimer Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:26
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/08; G03B35/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
160 words
In a binocular viewfinder, a screen, a pair of stereo images on adjacent areas of said screen, a dark bar between said areas, a first set of mutually extinguishing filters spaced from said stereo images on said screen, and in proximity to said screen, a set of two oculars, each having an optical axis, said optical axes converging to the center point of said screen, a second set of mutually extinguishing filters, one of said second set of mutually extinguishing filters being positioned along an axis of each said ocular, a set of two prisms, one of each said prisms being positioned along one of said axes, each of said prisms having an apex and a base, said apices being parallel, and said bases being oriented opposite to each other, each of said prisms being positioned between a said ocular and said screen, whereby said stereo images are overlapped and whereby said images are fused into a single 3-dimensional view.
Claim 2
Dependent Claim
160 words
In a binocular viewfinder, a screen, a pair of stereo images on adjacent areas of said screen, a dark bar between said areas, a first set of mutually extinguishing filters spaced from said stereo images on said screen, and in proximity to said screen, a set of two oculars, each having an optical axis, said optical axes converging to the center point of said screen, a second set of mutually extinguishing filters, one of said second set of mutually extinguishing filters being positioned along an axis of each said ocular, a set of two prisms, one of each said prisms being positioned along one of said axes, each of said prisms having an apex and a base, said apices being parallel, and said bases being oriented opposite to each other, each of said prisms being positioned between a said ocular and said screen, whereby said stereo images are overlapped and whereby said images are fused into a single 3-dimensional view.
Claim 3
Dependent Claim
78 words
An optical device comprising a lens, said lens having an object plane and an image plane, first and second sets of mutually extinguishing filters, said first filter set being positioned on one side of the said lens, and said second filter set being positioned on the other side of said lens, said first filter set being positioned between said object plane and said lens, and said second filter set being positioned between said image plane and said lens.
Claim 4
Dependent Claim
78 words
An optical device comprising a lens, said lens having an object plane and an image plane, first and second sets of mutually extinguishing filters, said first filter set being positioned on one side of the said lens, and said second filter set being positioned on the other side of said lens, said first filter set being positioned between said object plane and said lens, and said second filter set being positioned between said image plane and said lens.
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) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |