US3752983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared viewing and photography
Assignee: CONDAMATIC CO Inc
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Filing: 1971-09-13
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Granted: 1973-08-14
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Expires: 1991-09-13
Abstract
Abstract An infra red attachment for a single lens reflex 35mm camera body involves imaging optics within which are axially aligned a first lens system, an infra red image converter, and a second lens system, in that order. The first lens system serves to focus infra red on the converter. The second lens system serves to focus a visible image produced by the converter onto black and white type, slow speed film within the single lens reflex camera body which is releasably connected to such light tube whereby a person may see an infra red converted image just prior to its being photographed on black and white film in the camera body.
Inventors
- 👤 S Yanez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:49
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/56; G03B17/565
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
An assembly for use on a reflex type camera body including an optical chamber having a first lens system, an image converter and a second lens system arranged in that order along an optical path, said first lens system focusing an infra red image on said converter, said converter converting said infra red image to a visible image and said second lens system serving to focus said visible image onto photographic film, said first system, said converter and second system being mechanically aligned with the axis of a light tube on which they are mounted, said light tube having means mounted thereon adapting the same for quick attachment and detachment from a reflex type camera body.
Claim 2
Dependent Claim
116 words
An assembly for use on a reflex type camera body including an optical chamber having a first lens system, an image converter and a second lens system arranged in that order along an optical path, said first lens system focusing an infra red image on said converter, said converter converting said infra red image to a visible image and said second lens system serving to focus said visible image onto photographic film, said first system, said converter and second system being mechanically aligned with the axis of a light tube on which they are mounted, said light tube having means mounted thereon adapting the same for quick attachment and detachment from a reflex type camera body.
Claim 3
Dependent Claim
32 words
An assembly as set forth in claim 1 including a reflex type camera body attached to said light tube by said means mounted thereon for said quick attachment to and detachment from.
Claim 4
Dependent Claim
34 words
An assembly as set forth in claim 1 including an infra red light source mounted on said light tube for projecting infra red light generally along a prolongation of the axis of said tube.
Claim 5
Dependent Claim
25 words
An assembly as set forth in claim 1 in which said first lens system is adjustably mounted on said chamber with respect to said converter.
Claim 6
Dependent Claim
22 words
An assembly as set forth in claim 1 in which said second lens system is adjustably mounted with respect to said converter.
Claim 7
Dependent Claim
50 words
An arrangement as set forth in claim 1 including a portable power supply connected to said converter including a battery, a D.C. to D.C. converter having its input connected to said battery and its output connected to the input of a voltage multiplier having its output connected to said converter.
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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |