Printed circuit board

Details Printed circuit board Printed circuit board

1994-03-08

1996-04-16

Adams, Russell E.

354286, G03B 700

Patent

active

055087817

ABSTRACT:
The present invention provides a printed circuit board installed in a lens barrel with an imaging optical system. In an installed state, the printed circuit board comprises: a ring-shaped portion disposed substantially perpendicular to the optical axis of the imaging optical system wherein an aperture is provided at a central portion of the ring-shaped portion so that an imaging light beam may pass through the aperture; and an extending board portion that extends outward from the ring-shaped portion wherein electrical components may be mounted on the surface of the extending board portion. After the ring-shaped portion and the extending board portion have been bent, the above-described flexible printed circuit board is inserted into the lens barrel in such a manner that the plane of the extending board portion on which the electrical components are mounted is parallel to the optical axis of the imaging optical system. This printed circuit board provides high efficiency electrical interconnections in the lens barrel.

REFERENCES:
patent: 3670639 (1972-06-01), Harnden, Jr.
patent: 4596454 (1986-06-01), Kawai et al.
patent: 4682871 (1987-07-01), Metabi
patent: 4964697 (1990-10-01), Fuziwara
patent: 4990948 (1991-02-01), Sasaki et al.
patent: 4999656 (1991-03-01), Shimizu et al.
patent: 5327184 (1994-07-01), Nomura

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