Camera, bar code reader for camera and method of detecting bar c

Details Camera, bar code reader for camera and method of detecting bar c Camera, bar code reader for camera and method of detecting bar c

1997-12-09

2000-02-15

Perkey, W. B.

Photography

Exposure data from film itself

396284, 396266, 396406, G03B 700, G03B 166

Patent

active

060262508

ABSTRACT:
A camera for use with a Brownie roll film having a bar code containing data about a roll film, such as a film speed and a roll film type. The bar code is printed on an adhesive tape which secures light-shielding paper to a leading end of a photo filmstrip of the roll film. As soon as the roll film is loaded with its leading end of the light-shielding paper secured to a take-up spool of the camera, the camera starts rotating the take-up spool and, simultaneously, a reflective photo sensor starts scanning. Based on output signal from the photo sensor and the transport amount of the filmstrip, a first frame exposure portion of the filmstrip is automatically positioned behind an exposure aperture. The number ofavailable exposures is derived from the roll film type data read from the bar code, and is displayed on an LCD panel. An automatic exposure control is effected while taking the film speed read from the bar code into consideration.

REFERENCES:
patent: Re34452 (1993-11-01), Taniguchi
patent: 5109241 (1992-04-01), Keeney
patent: 5845869 (1998-12-01), Makino

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