Lens holding device
First Claim
Patent Images
1. A lens holding device, comprising:
- a lens frame, said lens frame having a unitary elastic portion and a reference surface formed on said lens frame;
a retaining member, provided on said lens frame;
a first lens, supported by said lens frame and held against said reference surface by said retaining member, in a predetermined position with reference to said lens frame; and
a second lens, supported by said lens frame and elastically held against said first lens, by said unitary elastic portion of said lens frame, in a predetermined position with reference to said lens frame and to said first lens.
1 Assignment
0 Petitions
Accused Products
Abstract
A glass lens and a plastic lens are secured such that the glass lens is retained in a predetermined position with reference to a lens barrel and against a reference surface provided in the lens barrel. The plastic lens is held by a resilient ring-shaped portion of the lens barrel against the glass lens, thus locating the plastic lens in a predetermined position with reference to both the lens barrel and the glass lens. The glass lens is retained against the reference surface by a retaining member positioned opposite the reference surface.
25 Citations
23 Claims
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1. A lens holding device, comprising:
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a lens frame, said lens frame having a unitary elastic portion and a reference surface formed on said lens frame; a retaining member, provided on said lens frame; a first lens, supported by said lens frame and held against said reference surface by said retaining member, in a predetermined position with reference to said lens frame; and a second lens, supported by said lens frame and elastically held against said first lens, by said unitary elastic portion of said lens frame, in a predetermined position with reference to said lens frame and to said first lens. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A lens holding device, comprising:
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a lens frame, said lens frame having a unitary elastic portion and a reference surface formed on said lens frame; a glass lens, having a reference surface formed thereon; a resin lens; and a retaining member, provided to said lens frame, wherein said glass lens is held against said reference surface of said lens frame by said retaining member, and said resin lens is elastically held against said reference surface of said glass lens by said elastic portion. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A lens holding device, comprising:
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a lens frame, having first and second lens mounting portions formed thereon;
a reference surface substantially facing said first lens mounting portion and formed between said first and second lens mounting portions; and
an elastic ring formed in said lens frame on a side of said second lens mounting portion and opposite said first lens mounting portion;a first lens, provided in said first lens mounting portion and in abutting relation to said reference surface; a second lens, provided in said second lens mounting portion and resiliently held in abutting relation to said first lens by said elastic ring; and a retaining portion, provided on a side of said first lens mounting portion opposite said second lens mounting portion, and holding said first lens in abutting relation to said reference surface. - View Dependent Claims (20, 21, 22, 23)
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Specification