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:
Apr. 09, 2024
Filed:
Aug. 04, 2023
Keyence Corporation, Osaka, JP;
Hirokazu Niimura, Osaka, JP;
KEYENCE CORPORATION, Osaka, JP;
Abstract
Display with high visibility without impairing rigidity of a housing is performed. A light curtain includes: a housing in which one element of a pair of elements disposed inside along a longitudinal direction in order to form the plurality of optical axes at intervals, the housing including a metal case and end members connected to both ends of the metal case; a cover that transmits light from a light projecting element, which is the one element, and is attached to the housing so as to cross the optical axe; an indicator lamp that is a light diffusing member disposed outside an outer surface of at least one of the cover and the housing along the longitudinal direction or formed in series with the cover; and an indicator lamp light source that is accommodated in the housing and supplies light for displaying toward the indicator lamp.