Interchangeable lens with double-sided printed circuit board

Details Interchangeable lens with double-sided printed circuit board Interchangeable lens with double-sided printed circuit board

1989-05-24

1991-03-12

Brown, Brian W.

354286, G03B 118

Patent

active

049996568

ABSTRACT:
A lens barrel incorporating electric parts such as motors. The lens barrel has a double-sided printed circuit board disposed such that its major plane extend substantially orthogonally to the optical axis. Chip elements such as circuit elements are mounted on the front side of the double-sided printed circuit board while flexible connecting members for connection to the electrical parts are provided on the rear side of the double-sided printed circuit board. A land for allowing electrical check of electric circuit is also provided on the rear side of the double-sided printed circuit board.

REFERENCES:
patent: 4596454 (1986-06-01), Kawai et al.
patent: 4721972 (1988-01-01), Wakabayashi
patent: 4804331 (1989-02-01), Eguchi et al.
patent: 4844586 (1989-07-01), Suzuki et al.
patent: 4864348 (1989-09-01), Fujiwara et al.

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