Interchangeable lens and interchangeable lens system

Details Interchangeable lens and interchangeable lens system Interchangeable lens and interchangeable lens system

1989-08-14

1990-09-25

Perkey, W. B.

Facsimile and static presentation processing

Facsimile

Recording apparatus

354455, 354286, H04N 5238, G03B 7095, G03B 720

Patent

active

049597280

ABSTRACT:
Disclosed is an interchangeable lens system which comprises an interchangeable lens and a camera. The interchangeable lens includes a driving circuit controlled by data transmitted from the camera to the lens such that it displaces a controlled member of the lens, a detection circuit for detecting a displacement of the driving circuit, and a correction circuit for converting the output characteristics of the detection circuit into predetermined common characteristics. The camera includes a control circuit for driving the driving circuit in the interchangeable lens in response to the output of the detection circuit in the interchangeable lens.

REFERENCES:
patent: 4472740 (1984-09-01), Doi
patent: 4532553 (1985-07-01), Boill
patent: 4557579 (1985-12-01), Nakajima
patent: 4652109 (1987-03-01), Tsunekawa
patent: 4712900 (1987-12-01), Hamano et al.
patent: 4790649 (1988-12-01), Harada et al.
patent: 4833498 (1989-05-01), Kato et al.
patent: 4885600 (1989-12-01), Iwasa et al.

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