Camera accessory with encoder adjusting device

Details Camera accessory with encoder adjusting device Camera accessory with encoder adjusting device

1986-01-16

1987-10-13

Gellner, Michael L.

3542891, G03B 1718

Patent

active

046994912

ABSTRACT:
A camera accessory such as an exchangeable lens or an electronic flash device, selectively attached to a camera and having a driven member and an encoder for the driven member. The encoder having a pattern for position adjustment and a brush linked with the driven member, the encoder being constructed to produce code data indicative of the position of the brush on the pattern. The camera accessory outputs a signal indicative of a relationship between the driven member and encoder on the basis of the data from the encoder, the signal being used for the position adjustment.

REFERENCES:
patent: 4274730 (1981-06-01), Taniguchi
patent: 4477164 (1984-10-01), Nakai et al.

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