Photography – With object illumination for exposure – Having flash built into camera
Patent
1997-10-23
1998-06-16
Blankenship, Howard B.
Photography
With object illumination for exposure
Having flash built into camera
396180, 396192, 396205, 396 6, G03B 1503
Patent
active
057686386
ABSTRACT:
A single-use camera including a camera body, a shutter driver, a battery, a film advance mechanism and a film frame counter connected to the film advance mechanism, includes a chemical flash arrangement having a compact photoflash lamp array. The photoflash lamp array employs a flexible circuit having a plurality of electrical conductors leading to an array of igniter links and defining the contacts of a commutator, and a common electrical connection to each igniter link. A combustible mass is deposited over each igniter link and a grid defining a corresponding array of combustion cavities is bonded to the substrate. A sheet of transparent material is bonded over the grid to contain the combustion products of the combustible mass. A commutator contact carried by the frame counter contact carries current from the battery and cooperates with the contacts on the flexible circuit to provide sequential electrical connection to successive igniter links. A switch is closed by the shutter driver to electrically connect the battery through the commutator to an igniter link.
REFERENCES:
patent: 3598985 (1971-08-01), Harnden, Jr.
patent: 3608451 (1971-09-01), Kelem
patent: 3995290 (1976-11-01), Graham
patent: 5319404 (1994-06-01), Swayze
patent: 5502526 (1996-03-01), Katano
patent: 5559571 (1996-09-01), Miyamoto et al.
Blankenship Howard B.
Close Thomas H.
Eastman Kodak Company
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