US4198147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encoding system
Assignee: Individual
•
Filing: 1978-02-27
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Granted: 1980-04-15
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Expires: 1998-02-27
Abstract
Abstract An improved three-dimensional camera comprises an objective lens having a focal plane, a graticule positioned adjacent the focal plane, a shutter operable to permit formation of an image of a subject at the combined image plane of the lens and graticule as a parallax panoramogram. The improvement comprises masking means, such as a half tone screen positioned between the objective lens and the image plane and having a pattern for masking the image in the image plane.
Inventors
- 👤 Alfred V. Alasia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:14
CPC Classifications
G; G03; G03B; G03B35/00; G09; G09C; G09C5/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
72 words
In a three-dimensional imaging camera of the type including an objective lens having a focal plane, a graticule positioned adjacent said focal plane, and shutter means operable to permit formation of an image of a subject at the combined image plane of said lens and graticule as a parallax panoramogram, the improvement comprising; masking means positioned between said objective lens and said image plane and having a pattern for masking said image.
Claim 2
Dependent Claim
72 words
In a three-dimensional imaging camera of the type including an objective lens having a focal plane, a graticule positioned adjacent said focal plane, and shutter means operable to permit formation of an image of a subject at the combined image plane of said lens and graticule as a parallax panoramogram, the improvement comprising; masking means positioned between said objective lens and said image plane and having a pattern for masking said image.
Claim 3
Dependent Claim
15 words
A camera according to claim 1, wherein said masking means comprises a half tone screen.
Claim 4
Dependent Claim
14 words
A camera according to claim 2, wherein said screen includes a pattern of dots.
Claim 5
Dependent Claim
19 words
A camera according to claim 2, wherein said screen is positioned between said graticule and said combined image plane.
Claim 6
Dependent Claim
26 words
A camera according to claim 4 wherein said screen includes a plurality of dots arranged to provide a predetermined tonal pattern in said combined image plane.
Claim 7
Dependent Claim
26 words
A camera according to claim 5, wherein said predetermined tonal pattern is determined by the tonal pattern of said image so as to mask said image.
Claim 8
Dependent Claim
33 words
A camera according to claim 1, wherein said masking means is positioned between said graticule and said combined image plane, said masking means providing a predetermined tonal pattern in said combined image plane.
Claim 9
Dependent Claim
35 words
A camera according to claim 7, wherein said predetermined tonal pattern is determined by the tonal pattern of the image of a subject formed at said combined image plane so as to mask said image.
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) | 1983-04-15 | 1983-10-15 | 1984-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-15 | 1987-10-15 | 1988-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-15 | 1991-10-15 | 1992-04-15 | $7700.00 | Window Closed / Lapsed |