PHOTOELECTRIC SENSOR
First Claim
Patent Images
1. A photoelectric sensor comprising:
- a case made of resin and provided with a condensing lens through which light is transmitted;
a circuit board on which a photoelectric element disposed at a focus position of the condensing lens is mounted and which is accommodated in the case; and
a plate member made of metal and insert-molded in the case so as to be parallel with the circuit board,wherein the circuit board has a through hole through which the light transmitted through the condensing lens passes,wherein the photoelectric element is mounted on a face of the circuit board on an opposite side of the condensing lens, and the photoelectric element receives the light passed through the through hole; and
wherein the plate member is disposed on an opposite side of the condensing lens with respect to the circuit board, and the plate member has a cutout section passing through the plate member at a position overlapping with the photoelectric element in a thickness direction of the circuit board.
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Abstract
In a case made of resin and provided with a condensing lens through which light is transmitted, a circuit board on which a photoelectric element to be disposed at the focus position of the condensing lens is accommodated. The circuit board has a through hole through which the light having been transmitted through the condensing lens passes. Furthermore, the photoelectric element is mounted on the back face of the circuit board on the opposite side of the condensing lens and receives the light having passed through the through hole.
2 Citations
8 Claims
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1. A photoelectric sensor comprising:
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a case made of resin and provided with a condensing lens through which light is transmitted; a circuit board on which a photoelectric element disposed at a focus position of the condensing lens is mounted and which is accommodated in the case; and a plate member made of metal and insert-molded in the case so as to be parallel with the circuit board, wherein the circuit board has a through hole through which the light transmitted through the condensing lens passes, wherein the photoelectric element is mounted on a face of the circuit board on an opposite side of the condensing lens, and the photoelectric element receives the light passed through the through hole; and wherein the plate member is disposed on an opposite side of the condensing lens with respect to the circuit board, and the plate member has a cutout section passing through the plate member at a position overlapping with the photoelectric element in a thickness direction of the circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification