Patent
1979-05-07
1980-12-16
Truhe, J. V.
354 85, 354275, 354288, G03B 1700, G03B 1726, G03B 1728
Patent
active
042393655
ABSTRACT:
An accessory for use in an instant camera designed for standard film packs and by which the same camera may be used to expose and process film units of reduced image format size prepackaged in corresepondingly sized film packs. The accessory takes the form of a U-shaped housing having exterior planar dimensions to complement the interior planar dimensions of a well in the camera designed to receive a standard film pack. This configuration of the housing establishes a front opening chamber to receive and position the modified film pack of reduced size. The accessory is further configured to retain and position a sheet-like battery in position for supplying electric power to the camera during exposure and processing of a plurality of the reduced sized film packs. Indicating means are also contained in the accessory for informing the camera operator as to the charge level of the storage battery. The indicating means may be either an electrical battery testing circuit or a mechanical counter and indicator by which the user is informed of the need to change the battery after a predetermined number of film packs have been exposed and processed in the camera.
REFERENCES:
patent: 908531 (1909-01-01), Wright
patent: 4016582 (1977-04-01), Warcham
patent: 4075643 (1978-02-01), Lane
Polaroid Corporation
Thornton David R.
Truhe J. V.
Wade Shelley
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