Patent attributes
An operation panel includes: a casing having a front surface; first and second operation elements disposed on the front surface of the casing; a light source for emitting light to each of the first and second operation elements and disposed in the casing; and a brightness adjustment layer for covering at least a part of a light emitting surface of the light source. The first operation element includes a first light transmission part, and the second operation element includes a second light transmission part. The light from the light source transmits the first and second light transmission parts so that the light is output from the casing. The brightness adjustment layer adjusts brightness of the light emitted from the light source and outputting toward one of the first and second light transmission parts.
