To provide a button device uniformly and transmissively illuminates only each ring shaped decoration part of the periphery of a plurality of push buttons in good appearance by a back LED.
The plurality of push buttons 11 integrally molded the ring shaped decoration parts 10 are arranged in a cabinet 4, a light reflecting and diffusing sheet 9, a mortar-like light reflecting and diffusing part 8, and the LED 1 are arranged behind it. By repeating reflection and diffusion of the light of the LED, the ring shaped parts are uniformly transmissively illuminated in good appearance. Thereby, there is an advantage that each ring shaped decoration part of the peripheries of the plurality of the operation push buttons can be uniformly illuminated by one lamp or LED.
WAKIGUCHI KOUJI
TAMAOKI RYOSUKE
Tomoyasu Sakaguchi
Hiroki Naito