Printed circuit board
First Claim
1. A printed circuit board disposed in a lens barrel with an imaging optical system, including:
- a first board portion, an aperture being provided at a central portion of said first board portion such that an imaging light beam may pass through said aperture without interference, said first board portion being disposed in a plane which is substantially perpendicular to an optical axis of said imaging optical system;
a plurality of board portions, said second board portions extending in one of an inward and outward radial direction from said first board portion, electrical component chips being mounted on a surface of each of said second board portions, said second board portions being mechanically and electrically connected to one another through said first board portion; and
a bendable portion provided between said first board portion and each of said second board portions, wherein when said printed circuit board is installed in said lens barrel, said bendable portion is bent to a position where a plane of said second portion on which the electrical component chips are mounted are substantially parallel to the optical axis of the imaging optical system.
1 Assignment
0 Petitions
Accused Products
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.
29 Citations
20 Claims
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1. A printed circuit board disposed in a lens barrel with an imaging optical system, including:
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a first board portion, an aperture being provided at a central portion of said first board portion such that an imaging light beam may pass through said aperture without interference, said first board portion being disposed in a plane which is substantially perpendicular to an optical axis of said imaging optical system; a plurality of board portions, said second board portions extending in one of an inward and outward radial direction from said first board portion, electrical component chips being mounted on a surface of each of said second board portions, said second board portions being mechanically and electrically connected to one another through said first board portion; and a bendable portion provided between said first board portion and each of said second board portions, wherein when said printed circuit board is installed in said lens barrel, said bendable portion is bent to a position where a plane of said second portion on which the electrical component chips are mounted are substantially parallel to the optical axis of the imaging optical system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A lens barrel having a printed circuit board installed therein, said lens barrel comprising an imaging optical system, a ring-shaped motor comprising a ring-shaped stator and a ring-shaped rotor having a rotation center that substantially coincides with an optical axis of said imaging optical system, and a ring-shaped space that is formed between an outer circumferential surface of the optical path of said imaging optical system and an inner circumferential surface of said ring-shaped motor, said printed circuit board including:
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a first planar portion substantially parallel to the optical axis of said imaging optical system, said planar portion being disposed in said ring-shaped space and being joined to a second portion substantially perpendicular to said optical axis; and an electrical component chip mounted on said planar portion. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A printed circuit board including:
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a first portion, an aperture being provided at a central portion of said first portion; a plurality of second portions, said plurality of second portions extending in one of an inward and an outward radial direction from said first portion, electrical component chips being mounted on a surface of each of said plurality of second portions; and a bendable portion provided between said first portion and each of said second portions, wherein said bendable portion is bent to a position where said second portions are substantially perpendicular to said first portion.
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18. A method for assembling a lens barrel including a printed circuit having a first portion with an aperture provided in a central region thereof, a second plurality of portions, extending in one of and inward and an outward radial direction from said first portion and having electrical component chips mounted thereon and bendable portions provided between said first portion and said second portions, said lens barrel comprising a hollow cylindrical barrel member containing a taking lens, said barrel having elongated cavities extending in a direction parallel to an optical axis of said lens barrel and arranged along an interior surface thereof and an annular-shaped cover, said method comprising the steps of:
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(a) bending said second portion along said bendable portion arranged between said first and second portions so that said first and second portions are substantially perpendicular; (b) inserting said second portion into an insertion end of one of said cavities until said first portion rests against a shoulder adjacent said insertion end which supports said first portion and so that the central opening in said first portion is aligned with an optical axis of sid taking lens and so that said first portion does not interfere with light rays entering the lens barrel and imaged by said taking lens; (c) covering said end of said lens barrel receiving said printed circuit board assembly with said annular-shaped cover member; and (d) securing said cover member to said lens barrel. - View Dependent Claims (19, 20)
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Specification