Film information reading device of a camera

Details Film information reading device of a camera Film information reading device of a camera

1985-01-18

1986-04-15

Perkey, William B.

G03B 724

Patent

active

045824088

ABSTRACT:
A film information reading device of a camera adapted for use with a film cartridge having on an outer periphery film information pattern consisting of a combination of a plurality of conductive or insulated code areas, including a chamber wall for defining a film loading chamber, and a plurality of electrical contact members which are in contact with the code areas on the film cartridge, when the film cartridge is loaded into the camera. The film information, such as film sensitive speed, can be read out by detecting whether the contact members are in contact with the conductive or insulative code areas.
The chamber wall (11c, 11d, 21) has an opening (21a) opened toward the inside the film chamber (12). A base member (22) is slidably fitted within the opening (21a) so as to be slidingly movable between a projected position and a retracted position. The base member (22) has a plurality of holes (22a) extending in a sliding direction of the same, into which the contact members (23) are slidably fitted so as to be slidingly movable between their projected and retracted positions. The base member (22) and the respective contact members (23) are urged by springs (24) toward their inwardly projected position, so that the contact members (23) are in contact with the respective corresponding code areas provided on the film cartridge (1), when the latter is loaded in the chamber (12).

REFERENCES:
patent: 4024557 (1977-05-01), Aoyama et al.
patent: 4074286 (1978-02-01), Suzuki
patent: 4200371 (1980-04-01), Suzuki et al.
patent: 4309089 (1982-01-01), Harvey

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