US4326790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic camera
Assignee: Canon Inc
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Filing: 1980-05-23
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Granted: 1982-04-27
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Expires: 2000-05-23
Abstract
Abstract A camera having a distance measuring optical system and a photograph taking optical system is provided with an optical member carrying body formed by unifying a carrying member carrying at least a part of the photograph taking optical system and a carrying member carrying the distance measuring optical system. The optical member carrying body is molded with a synthetic resin and an internal reinforcement member such as a metal plate.
Inventors
- 👤 Noritsugu Hirata
- 👤 Masamichi Toyama
- 👤 Hidekazu Okajima
- 👤 Akimasa Nishimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:40
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G02; G02B; G02B7/00; G02B7/28; G02B7/30; G02B7/32; G03B19/00; G03B19/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
131 words
A camera comprising: (a) a photograph taking optical system for guiding light coming from an object to be photographed to a predetermined focal plane; (b) a distance measuring optical system for optically measuring a distance to the object, said distance measuring system being arranged to perform measurements using an optical path which differs from that of said photograph taking optical system, said two optical systems being in a predetermined positional relation to each other; (c) an optical member carrying body molded into a unitary structure for carrying said distance measuring optical system, and (d) a plate-shaped rigid construction molded inside of said optical member carrying body for guiding at least a part of said photograph taking optical system to keep said optical system in said predetermined positional relation to each other.
Claim 2
Dependent Claim
131 words
A camera comprising: (a) a photograph taking optical system for guiding light coming from an object to be photographed to a predetermined focal plane; (b) a distance measuring optical system for optically measuring a distance to the object, said distance measuring system being arranged to perform measurements using an optical path which differs from that of said photograph taking optical system, said two optical systems being in a predetermined positional relation to each other; (c) an optical member carrying body molded into a unitary structure for carrying said distance measuring optical system, and (d) a plate-shaped rigid construction molded inside of said optical member carrying body for guiding at least a part of said photograph taking optical system to keep said optical system in said predetermined positional relation to each other.
Claim 3
Dependent Claim
17 words
A camera according to claim 1, wherein said plate shaped construction is made of a metal material.
Claim 4
Dependent Claim
29 words
A camera according to claim 1, wherein the part of the photographic optical system which is guided by the plate is an optical system for adjusting the focal distance.
Claim 5
Dependent Claim
15 words
A camera according to claim 1, wherein the phototaking optical system includes a zoom arrangement.
References Cited (Backward Citations)
US4067032A
Cited
US4083060A
Cited
US4020496A
Cited
US4152062A
Cited
US4093365A
Cited
US4123765A
Cited
US4152065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-26 | 1985-10-26 | 1986-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-26 | 1989-10-26 | 1990-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-26 | 1993-10-26 | 1994-04-27 | $7700.00 | Window Closed / Lapsed |