Optical sensor
First Claim
Patent Images
1. An optical sensor comprising:
- a case;
a light projector comprising a light emitter, a light projecting lens, and a light projecting lens holder configured to hold the light projecting lens;
a light receiver configured to receive reflected light of light projected from the light projector; and
a light receiver lens configured to form an image of the reflected light on the light receiver,wherein the light projector, the light receiver, and the light receiver lens are each independently and directly fixed to the case, andwherein the light projector comprises;
a light projector holder in which the light emitter and the light projecting lens are accommodated; and
a holder configured to fix the light emitter accommodated in the light projector holder,the holder and the light projecting lens are fixed to the light projector holder using an ultraviolet curing adhesive,the light receiver comprises a light receiving sensor that is disposed away from a circuit board, andthe light receiving sensor is fixed to the case using the ultraviolet curing adhesive.
1 Assignment
0 Petitions
Accused Products
Abstract
To provide an optical sensor that can ensure accuracy of positions of a light projecting unit and a light receiving unit in a case. The optical sensor includes a case, an integrated light projecting module that includes a light emitting unit and a light projecting lens, a light receiving unit configured to receive reflected light of light projected from the light projecting module, and a light receiving lens unit configured to form an image of the reflected light on the light receiving unit. The light projecting module, the light receiving unit, and the light receiving lens unit are each independently and directly fixed to the case.
14 Citations
8 Claims
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1. An optical sensor comprising:
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a case; a light projector comprising a light emitter, a light projecting lens, and a light projecting lens holder configured to hold the light projecting lens; a light receiver configured to receive reflected light of light projected from the light projector; and a light receiver lens configured to form an image of the reflected light on the light receiver, wherein the light projector, the light receiver, and the light receiver lens are each independently and directly fixed to the case, and wherein the light projector comprises; a light projector holder in which the light emitter and the light projecting lens are accommodated; and a holder configured to fix the light emitter accommodated in the light projector holder, the holder and the light projecting lens are fixed to the light projector holder using an ultraviolet curing adhesive, the light receiver comprises a light receiving sensor that is disposed away from a circuit board, and the light receiving sensor is fixed to the case using the ultraviolet curing adhesive. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An optical sensor comprising:
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a case; a light projector comprising a light emitter, a light projecting lens, and a light projecting lens holder configured to hold the light projecting lens; a light receiver configured to receive reflected light of light projected from the light projector; and a light receiver lens configured to form an image of the reflected light on the light receiver, wherein the light projector, the light receiver, and the light receiver lens are each independently and directly fixed to the case, wherein the light projector comprises; a light projector holder in which the light emitter and the light projecting lens are accommodated; and a holder configured to fix the light emitter accommodated in the light projector holder, the holder and the light projecting lens are fixed to the light projector holder using an ultraviolet curing adhesive, the light receiver comprises a light receiving sensor that is disposed away from a circuit board, and the light receiving sensor is fixed to the case using the ultraviolet curing adhesive, and wherein the light projector holder is made of a resin having a linear expansion coefficient that is less than or equal to a linear expansion coefficient of a die casting metal.
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Specification