US 11,920,951 B2
Photoelectric sensor and method for manufacturing same
Jumpei Nakamura, Kyoto (JP); Hirotaka Nakashima, Fukuchiyama (JP); Kazunari Komai, Kameoka (JP); and Takahiro Oikawa, Kameoka (JP)
Assigned to OMRON Corporation, Kyoto (JP)
Appl. No. 17/424,886
Filed by OMRON Corporation, Kyoto (JP)
PCT Filed Feb. 28, 2020, PCT No. PCT/JP2020/008345
§ 371(c)(1), (2) Date Jul. 22, 2021,
PCT Pub. No. WO2020/175676, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 2019-036501 (JP), filed on Feb. 28, 2019.
Prior Publication US 2022/0082380 A1, Mar. 17, 2022
Int. Cl. G01C 3/02 (2006.01); G02B 1/18 (2015.01)
CPC G01C 3/02 (2013.01) [G02B 1/18 (2015.01)] 14 Claims
OG exemplary drawing
 
1. A photoelectric sensor housing at least one of a light projecting unit that emits light and a light receiving unit that receives light in a housing, wherein
the housing has an opening that allows at least one of light from the light projecting unit and light to the light receiving unit to pass through,
a cover lens that covers the opening and transmits the light is provided,
the cover lens is joined to an edge portion of the housing that defines the opening, and
an outer surface of the cover lens is applied with antifouling coating while a portion, which is in contact with the edge portion, of an inner surface of the cover lens is not applied with the antifouling coating,
wherein a material constituting the antifouling coating is a structure comprising a coating base material and an antifouling material to form a one-layer structure in which the coating base material and the antifouling coating material are chemically crosslinked.