US4556304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autofocus camera including a cover for a taking lens and diagonally disposed range finder windows
Assignee: Fujifilm Holdings Corp
•
Filing: 1984-10-02
•
Granted: 1985-12-03
•
Expires: 2004-10-02
Abstract
Abstract At least two rangefinder windows for measuring by triangulation the distance to the object to be photographed, are disposed opposite each other around a taking lens in diagonally upper and lower positions, on the front face of the camera body. A protective cover is provided, in the shape generally of a parallelogram slanted in the direction of a line passing through the rangefinder windows. The protective cover shelters the taking lens and the rangefinder windows when the protective cover is closed. When the protective cover is slid along the camera body and moved to its open position, the rangefinder windows and the taking lens are exposed. The protective cover can thus be made narrower, and need move less distance, and the camera body can be made correspondingly horizontally shorter, than if the protective cover were rectangular.
Inventors
- 👤 Hiroshi Fukuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:55
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/04; G03B19/00; G03B19/02; G03B19/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
An autofocus camera having a camera body and on the front face of the camera body having a taking lens and at least two rangefinder windows for measuring the distance to the object to be photographed, the rangefinder windows being disposed on opposite sides of the taking lens in diagonally upper and lower positions, and a protective cover disposed slidably on said camera body for sliding movement between open and closed positions, the cover having an edge that is slanted toward the direction of a line passing through said oppositely disposed rangefinder windows, said protective cover sheltering said rangefinder windows and said taking lens when closed and retreating from and exposing said taking lens and said rangefinder windows when open, said edge passing over said lens and windows during opening and closing movement of said cover.
Claim 2
Dependent Claim
136 words
An autofocus camera having a camera body and on the front face of the camera body having a taking lens and at least two rangefinder windows for measuring the distance to the object to be photographed, the rangefinder windows being disposed on opposite sides of the taking lens in diagonally upper and lower positions, and a protective cover disposed slidably on said camera body for sliding movement between open and closed positions, the cover having an edge that is slanted toward the direction of a line passing through said oppositely disposed rangefinder windows, said protective cover sheltering said rangefinder windows and said taking lens when closed and retreating from and exposing said taking lens and said rangefinder windows when open, said edge passing over said lens and windows during opening and closing movement of said cover.
Claim 3
Dependent Claim
26 words
A camera as claimed in claim 1, wherein said protective cover has a portion in front of said camera body that is of generally parallelogram shape.
Claim 4
Dependent Claim
14 words
A camera as claimed in claim 2, in which said parallelogram is a trapezoid.
Claim 5
Dependent Claim
44 words
A camera as claimed in claim 1, and a viewfinder mounted on said camera body for viewing the object to be photographed, said viewfinder being disposed above said taking lens in a position wherein said viewfinder is sheltered or exposed by said protective cover.
Claim 6
Dependent Claim
32 words
A camera according to claim 1, wherein said protective cover has a cross sectional profile which is substantially L-shaped and that interfits with the front and top faces of said camera body.
Claim 7
Dependent Claim
41 words
A camera as claimed in claim 5, wherein projections extending along the sliding direction of said protective cover are formed on opposite side portions of said protective cover, and said projections are slidably engaged within guide grooves on said camera body.
Claim 8
Dependent Claim
43 words
A camera as claimed in claim 1, wherein said at least two rangefinder windows comprise a light-transmitting window for radiating a spot of light toward the object to be photographed, and at least one light-receiving window for receiving light reflected by said object.
References Cited (Backward Citations)
DE870941C
Cited
US3836985A
Cited
US4032940A
Cited
US4299465A
Cited
US4432621A
Cited
JPS57173822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-02 | 1989-06-03 | 1989-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-02 | 1993-06-03 | 1993-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-02 | 1997-06-03 | 1997-12-03 | $7700.00 | Window Closed / Lapsed |