In a portable telephone including a plurality of input buttons 1 for inputting
various indications, light emitting elements 7 which emit a light, when
any one of the input buttons 1 is pushed on, diffusers 8 which are
located under a plurality of input buttons 1 and which diffuse the light
emitted from the light emitting element 7, the diffuser 8 has an
incidence portion 5 which has a receiving plane positioned near the light
emitting elements 7 and receiving the light emitted from the light emitting
elements 7, and a projecting portion 6 which has a reflecting plane
for reflecting the light received by the incidence portion 5 to an upper
side of a plurality of input buttons 1.