Patent ID: 11920951
Assignee: OMRON CORPORATION
Field: Optics (Instruments)
Classification: CPC G  C | IPC G

Claim 12:
13. 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
a part of an outer surface of the cover lens is applied with antifouling coating while another part of the outer surface of the cover lens is in contact with the edge portion and 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.