US3751652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal camera flash sensor bracket
Assignee: Rollei of America Inc
•
Filing: 1971-07-28
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Granted: 1973-08-07
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Expires: 1991-07-28
Abstract
Abstract A mounting bracket featuring a light sensing device is detachably securable to both a camera and a flash unit. A flash control signal is transmitted from the camera to the bracket through a first two wire electrical connection, and thence to the flash unit through a second two wire electrical connection, to effect the operation of the flash unit whereby to illuminate a scene being photographed. The second electrical connection is selectively extendable from, and ordinarily housed within, the bracket. A second signal representative of the operation of the flash unit is transmitted from the flash unit through the second electrical connection to a light sensing circuit, included within one embodiment of the mounting bracket, to activate a light sensing device which, in turn, monitors light received from the scene being photographed and generates a quench signal upon detection of a predetermined amount of the received light. The quench signal is transmitted to the flash unit through the second electrical connection for effectively terminating the illumination of the scene being photographed.
Inventors
- 👤 D Peterson
- 👤 P Neukirchner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:47
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; G03B2215/00; G03B2215/05; G03B2215/0514; G03B2215/0517
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
284 words
A mounting bracket means for use in a photographic system wherein a flash unit is selectively actuable to furnish illumination for a scene to be photographed by an associated camera means, said mounting bracket means comprising: a body member, said body member including means defining a recess within said body member; an extendable coiled cord within said recess, said extendable coiled cord being secured near a first end thereof to one end of said body member, said coiled cord having a first terminal means at said first end thereof, said first terminal means being arranged for connection to said camera means; first mechanical coupling means selectively operable for coupling said body member to said camera means independently of the connection providable through said first terminal means; second mechanical coupling means including a support member; a quick disconnect device connecting said body member and said second mechanical coupling means, said second mechanical coupling means being arranged to be attached to said flash unit, said coiled cord being secured near a second end thereof to said support member of said second mechanical coupling means, said coiled cord having a second terminal means at said second end thereof, said second terminal means being arranged for connection to said flash unit independently of the coupling provided through said second mechanical coupling means, said coiled cord providing the only electrical connection between said camera means and said flash unit, said quick disconnect device being selectively operable to disconnect said second mechanical coupling means from said body member for allowing said flash unit, with said second mechanical coupling means attached thereto, to be moved independently of said body member of said mounting bracket means by variably extending said coiled cord.
Claim 2
Dependent Claim
284 words
A mounting bracket means for use in a photographic system wherein a flash unit is selectively actuable to furnish illumination for a scene to be photographed by an associated camera means, said mounting bracket means comprising: a body member, said body member including means defining a recess within said body member; an extendable coiled cord within said recess, said extendable coiled cord being secured near a first end thereof to one end of said body member, said coiled cord having a first terminal means at said first end thereof, said first terminal means being arranged for connection to said camera means; first mechanical coupling means selectively operable for coupling said body member to said camera means independently of the connection providable through said first terminal means; second mechanical coupling means including a support member; a quick disconnect device connecting said body member and said second mechanical coupling means, said second mechanical coupling means being arranged to be attached to said flash unit, said coiled cord being secured near a second end thereof to said support member of said second mechanical coupling means, said coiled cord having a second terminal means at said second end thereof, said second terminal means being arranged for connection to said flash unit independently of the coupling provided through said second mechanical coupling means, said coiled cord providing the only electrical connection between said camera means and said flash unit, said quick disconnect device being selectively operable to disconnect said second mechanical coupling means from said body member for allowing said flash unit, with said second mechanical coupling means attached thereto, to be moved independently of said body member of said mounting bracket means by variably extending said coiled cord.
Claim 3
Dependent Claim
95 words
The mounting bracket means as set forth in claim 1 and further including a light sensing means mounted on said mounting bracket means, said light sensing means being electrically connected between said first and second terminal means, said light sensing means being operable to sense light received from said scene to be photographed and to generate a quench signal upon receipt of a predetermined amount of said light, said quench signal being applied to said second terminal means for transmission to said flash unit whereby to effectively terminate said illumination furnished by said flash unit.
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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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |