Illumination-type push button device

Abstract

An illumination-type push button device, including a light source portion and an optical member in which one or more lens portions each made of an outgoing surface on a front side and an incident surface on a back side are formed, the optical member configured to receive, from the incident surfaces, light emitted from the light source portion, and to emit the incident light to an outside of the device from the outgoing surfaces, wherein in the outgoing surface of one of the lens portions of the optical member, a single convex portion is formed, the single convex portion being convex in a light exit direction, and in the incident surface of one of the lens portions of the optical member, a plurality of convex portions are formed, the plurality of convex portions being convex reverse to the light incident direction, and smaller than the convex portion of the outgoing surface.

Dependencies are inferred from the claim text.