The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2020
Filed:
Nov. 14, 2018
Omron Corporation, Kyoto, JP;
OMRON Corporation, Kyoto, JP;
Abstract
The door switch () includes an actuator () and a sensor (). When a door is closed, a front surface (S) of the sensor () and an opposite surface of the actuator () are in contact with each other, and separated when the door is open. The sensor () includes a light source part () for emitting detection light according to a reception state of a detection signal outputted from the actuator, a collector () for collecting the detection light, a diffuse light guide part () formed to be connected to the collector and for diffusing and emitting the detection light collected by the collector, and a back surface display part () formed on a back surface (B) side of the sensor to be in contact with the diffuse light guide part and having a main surface () for emitting the detection light emitted from the diffuse light guide part.