US4897680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic cameras
Assignee: Individual
•
Filing: 1989-04-18
•
Granted: 1990-01-30
•
Expires: 2009-04-18
Abstract
Abstract A camera with an electronic flash unit inset substantially flush with the top, bottom or side of the camera housing so that its light is directed generally outwardly of the axis of the camera lens. A reflector hinged to the top, bottom or side over that flash unit to reflect the light forwardly into the area of a scene being photographed. The flash unit includes a flash tube with a parabolic reflector to concentrate the light in one axis and the reflector having a generally curved shape to concentrate the light in an axis at right angles, so concentration the light in the area of a scene being photographed.
Inventors
- 👤 Anthony T. Lo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:25
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; G03B2215/00; G03B2215/05; G03B2215/0503
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
198 words
A camera comprising a housing, a front face to said housing the lens in said front face viewing a forward direction and through which light from a scene being photographed passes to the interior of the camera for recording on a photographic recording medium, an electronic flash unit inset into said housing so as not to project significantly beyond said housing, and mounted so as to direct its light in an outward direction relative said forward direction viewed by said camera lens, and a hinged reflector positioned over said flash unit which can be hinged flush with said housing positioned over said flash unit when the flash unit is not in use and hinged to an inclined position when the flash unit is to be used whereby light from the flash unit passes to the reflector which then reflects the light forwardly in the direction viewed by the camera lens, the reflector being shaped such that light from the flash unit is directed predominantly into the area of a scene from which light will be collected by the camera lens for the picture, so avoiding significant wastage of light into areas outside the said area of the scene.
Claim 2
Dependent Claim
198 words
A camera comprising a housing, a front face to said housing the lens in said front face viewing a forward direction and through which light from a scene being photographed passes to the interior of the camera for recording on a photographic recording medium, an electronic flash unit inset into said housing so as not to project significantly beyond said housing, and mounted so as to direct its light in an outward direction relative said forward direction viewed by said camera lens, and a hinged reflector positioned over said flash unit which can be hinged flush with said housing positioned over said flash unit when the flash unit is not in use and hinged to an inclined position when the flash unit is to be used whereby light from the flash unit passes to the reflector which then reflects the light forwardly in the direction viewed by the camera lens, the reflector being shaped such that light from the flash unit is directed predominantly into the area of a scene from which light will be collected by the camera lens for the picture, so avoiding significant wastage of light into areas outside the said area of the scene.
Claim 3
Dependent Claim
53 words
A camera according to claim 1 in which said housing is of generally rectangular parallelopiped shape, said housing having a top face and side faces, said electronic flash unit being inset into said top or a side face and said reflector being hinged to that top or side face over said flash unit.
Claim 4
Dependent Claim
47 words
A camera according to claim 1 in which said housing is of generally rectangular parallelopiped shape, said housing having a top face into which said electronic flash unit is inset with the reflector being hingedly mounted to the rear of said top face over said flash unit.
Claim 5
Dependent Claim
53 words
A camera according to claim 1 in which said electronic flash unit comprises a substantially straight flash tube for emitting light and a substantially parabolic reflector placed substantially axially of the axis of the tube for directing the light in a direction generally outwardly relative the forward direction viewed by said camera lens.
Claim 6
Dependent Claim
33 words
A camera according to claim 4 in which said reflector is generally curved relative the axis of the tube, so as to concentrate the light onto the area of the scene being photographed.
Claim 7
Dependent Claim
23 words
A camera according to claim 5 in which said reflector is smoothly curved along its width-wise extent relative the axis of the tube.
Claim 8
Dependent Claim
43 words
A camera according to claim 5 in which said reflector comprises a substantially flat central portion flanked by inclined substantially flat side portions which reflect light from beyond the respective end of the tube back into the area of the scene being photographed.
References Cited (Backward Citations)
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US3286611A
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US4078170A
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US4121232A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-29 | 1993-07-31 | 1994-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-29 | 1997-07-31 | 1998-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-29 | 2001-07-31 | 2002-01-30 | $7700.00 | Window Closed / Lapsed |