Lens for a camera provided with code patterns

Details Lens for a camera provided with code patterns Lens for a camera provided with code patterns

1979-07-12

1980-12-02

Gellner, Michael L.

354 23D, 354289, G03B 7093, G03B 1700, G03B 1718

Patent

active

042368030

ABSTRACT:
A lens information introducing device in a camera comprises n bits of code patterns provided on a lens and photoelectrically legible, optical means for introducing the code patterns into a camera body and imaging the same at a predetermined position, and photoelectric converter means disposed at the predetermined position and having n photoelectric converting elements corresponding to the code patterns and being effective to produce a digital electrical signal corresponding to the lens information on the basis of the photoelectric signals produced by the photoelectric converting elements.

REFERENCES:
patent: 3840289 (1974-10-01), Okuno
patent: 3928858 (1975-12-01), Sakurada et al.
patent: 4104649 (1978-08-01), Tanaka et al.

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