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US 8,913,308 B2Granted
Light collecting member, and optical module and image reading device having the light collecting member
AssigneesNEC AccessTechnica, Ltd., NEC Engineering, Ltd.
InventorsNamie Sugiyama, Koushi Takano, Hiroyuki Okada
Life of this patent
Estimating the term…
Abstract
A light collecting member includes a lens to make incident light be collected on a light receiving member, a lens barrel to house the lens, an end portion into which a light enters of the lens barrel being arranged near the light receiving member and a fence member to cover the end portion into which a light enters of the lens barrel and the light receiving member, the fence member having an exhaust port formed in a manner extending in a vertical direction.
Claims8
A light collecting member, comprising:
- a lens to make incident light be collected on a light receiving member;
- a lens barrel to house said lens, an end portion into which a light enters of said lens barrel being arranged near said light receiving member;
- and
- a fence member to cover said end portion into which a light enters of said lens barrel and said light receiving member, said fence member having an exhaust port formed in a manner extending in a vertical direction.
1 more element
Dependencies are inferred from the claim text.