US3736849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
On-film optical recording of camera lens settings
Assignee: National Aeronautics and Space Administration
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Filing: 1971-03-17
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Granted: 1973-06-05
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Expires: 1991-03-17
Abstract
Abstract Apparatus is provided for recording a representation of the camera lens aperture and focus setting on the film of a camera at the same time that the photographic image is recorded on such film. A data lens means is provided intermediate the camera lens and camera film whereby the aperture and focus setting of the camera lens may be determined through measurement of both the location and the size of a data image provided by such data lens means. Such data lens means requires no electrical power, is low in weight, and does not result in an increase in the external dimensions of the camera in which such data lens means is installed.
Inventors
- 👤 R Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:21
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B17/245; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/243
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
97 words
In a camera adapted to expose and record a principal image on photosensitive material, said camera including a camera body having a receptacle for the photosensitive material and adjustable camera lens means including diaphragm means operably associated with said camera body, the improvement comprising: optical data means positioned in said body for optically imaging and recording (selected settings of said adjustable camera lens means) the diaphragm means aperture directly on said photosensitive material in conjunction with the principal image in direct correspondence to selected settings of said camera lens means at the time the image was recorded.
Claim 2
Dependent Claim
97 words
In a camera adapted to expose and record a principal image on photosensitive material, said camera including a camera body having a receptacle for the photosensitive material and adjustable camera lens means including diaphragm means operably associated with said camera body, the improvement comprising: optical data means positioned in said body for optically imaging and recording (selected settings of said adjustable camera lens means) the diaphragm means aperture directly on said photosensitive material in conjunction with the principal image in direct correspondence to selected settings of said camera lens means at the time the image was recorded.
Claim 3
Dependent Claim
21 words
Apparatus defined by claim 1 wherein said data lens means include support means and a lens positioned on said support means.
Claim 4
Dependent Claim
25 words
Apparatus defined by claim 1 wherein said selected settings of said camera lens means (recorded by said optical data means) include aperture and focus settings.
Claim 5
Dependent Claim
14 words
Apparatus defined by claim 1 further including a reseau plate positioned in said body.
Claim 6
Dependent Claim
16 words
Apparatus defined by claim 1 wherein said optical data mans is fixedly positioned in said body.
Claim 7
Dependent Claim
31 words
Apparatus defined by claim 1 wherein said camera lens means includes a support, and said optical data means is positioned on said support in fixed relation to said camera lens means.
Claim 8
Dependent Claim
13 words
Apparatus defined by claim 1 wherein said optical data means includes a lens.
Claim 9
Dependent Claim
16 words
Apparatus defined by claim 1 wherein said optical data means comprises a plurality of reflective surfaces.
Claim 10
Dependent Claim
17 words
Apparatus defined by claim 1 wherein said optical data means comprises a plurality of refractive data systems.
Claim 11
Independent Claim
41 words
A method of determining selected camera lens parameters, said method comprising the steps of exposing film in a camera having data lens means for providing indicia on said film upon exposure thereof, and measuring the size and location of said indicia.
Claim 12
Independent Claim
41 words
A method of determining selected camera lens parameters, said method comprising the steps of exposing film in a camera having data lens means for providing indicia on said film upon exposure thereof, and measuring the size and location of said indicia.
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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |