US4903056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera having checking function
Assignee: Fujifilm Holdings Corp
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Filing: 1988-11-23
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Granted: 1990-02-20
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Expires: 2008-11-23
Abstract
Abstract A camera having checking function in which part of a light beam passing through the conjugate system of the camera lens unit is taken out. The light beam taken is passed through a focusing optical system to focus an optical image on an imaging device, and the imaging device outputs a picture signal corresponding to the optical image focused.
Inventors
- 👤 Masafumi Kamikubota
- 👤 Masamichi Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:35
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B7/00; G03B7/08; G03B7/091; G03B7/097
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
110 words
A camera having a checking function which is composed of a silver-halide-film camera with an imaging device, comprising: a mirror disposed at a conjugate system of a camera lens assembly for reflecting a first part of an incident light beam, a focusing optical system for receiving said light part of said incident light beam reflected by said mirror and for focusing an optical image, and an imaging device disposed at a position where said optical image is focused by said focusing optical system for outputting a picture signal corresponding to said focused optical image, while simultaneously a second part of said incident light beam records an image on said silver-halide-film.
Claim 2
Dependent Claim
110 words
A camera having a checking function which is composed of a silver-halide-film camera with an imaging device, comprising: a mirror disposed at a conjugate system of a camera lens assembly for reflecting a first part of an incident light beam, a focusing optical system for receiving said light part of said incident light beam reflected by said mirror and for focusing an optical image, and an imaging device disposed at a position where said optical image is focused by said focusing optical system for outputting a picture signal corresponding to said focused optical image, while simultaneously a second part of said incident light beam records an image on said silver-halide-film.
Claim 3
Dependent Claim
134 words
A camera having a checking function which is composed of a silver-halide-film camera with an imaging device, comprising: a combined optical system disposed at a conjugate system of a camera lens assembly for receiving a first part of an incident light beam and focusing an optical image; a mirror for reflecting said first part of said incident light beam passed through said combined optical system in a direction different from an optical axis of said incident light beam, and an imaging device disposed at a position where said light beam passed through said combined optical system and reflecting by said mirror is focused into an optical image for outputting a picture signal corresponding to said focused optical image, while simultaneously a second part of said incident light beam records an image on said silver-halide-film.
Claim 4
Dependent Claim
134 words
A camera having a checking function which is composed of a silver-halide-film camera with an imaging device, comprising: a combined optical system disposed at a conjugate system of a camera lens assembly for receiving a first part of an incident light beam and focusing an optical image; a mirror for reflecting said first part of said incident light beam passed through said combined optical system in a direction different from an optical axis of said incident light beam, and an imaging device disposed at a position where said light beam passed through said combined optical system and reflecting by said mirror is focused into an optical image for outputting a picture signal corresponding to said focused optical image, while simultaneously a second part of said incident light beam records an image on said silver-halide-film.
Claim 5
Dependent Claim
31 words
A camera having a checking function as claimed in claim 1, wherein said picture signal is converted into a video signal for display on a monitor or printing on a printer.
Claim 6
Dependent Claim
34 words
A camera having a checking function as claimed in claim 1, wherein said picture signal corresponding to said focused optical image is continuously displayed on a monitor as an animated picture of said image.
Claim 7
Dependent Claim
20 words
A camera having a checking function as claimed in claim 2, wherein said combined optical system comprises a double-focus lens.
Claim 8
Dependent Claim
23 words
A camera having a checking function as claimed in claim 2, wherein said combined optical system comprises a separate unit from camera lenses.
Claim 9
Dependent Claim
30 words
A camera having a checking function as claimed in claim 2, wherein said combined optical system is integrally formed on the periphery of a camera lens of the subject side.
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) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |