Light collecting member, and optical module and image reading device having the light collecting member
The present invention relates to a light collecting member, and an optical module and an image reading device having the light collecting member. The 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 porti...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The present invention relates to a light collecting member, and an optical module and an image reading device having the light collecting member. The 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 the light enters of the lens barrel being arranged near the light receiving member, and a fence member to cover the end portion into which the 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. |
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