Title:
PHOTOELECTRIC SENSOR
Document Type and Number:
Japanese Patent JP2023003847
Kind Code:
A
Abstract:
To provide a photoelectric sensor capable of shielding a light receiving element from noise from the outside with a simple configuration.SOLUTION: A light receiving element 31b is mounted on a first surface 30a of a substrate 30. A light guide block 50 has a light guide part 53 disposed between the front surface of a body case and the first surface 30a. A shield case 70 is disposed on the first surface 30a, has an opening 79 through which incident light can pass, and covers the light receiving element 31b between the first surface 30a and the light guide block 50. A conductive film 90 is disposed between the light guide block 50 and the shield case 70, and covers the opening 79. The substrate 30 has ground wiring to which the shield case 70 is electrically connected. The shield case 70 includes a leaf spring piece 81 which has a contact part 83 contacting a conductive layer of the conductive film 90 and which sandwiches the conductive film 90 between the contact part 83 and the light guide part 53 by a biasing force that biases the contact part 83 toward the light guide part 53.SELECTED DRAWING: Figure 9
Inventors:
MIZUTANI TAKESHI
Application Number:
JP2021105168A
Publication Date:
January 17, 2023
Filing Date:
June 24, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H01H35/00; G01V8/12
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
Previous Patent: Welding system and cable installation method
Next Patent: Channel control device, channel control method, and channel control system
Next Patent: Channel control device, channel control method, and channel control system