| 摘要 |
PURPOSE: To obtain a miniature optical disk device mounted with plural light sources. CONSTITUTION: In a light source part of the optical disk device mounted with the plural light sources, semiconductor lasers 1a, 1b are arranged so as to face each other, and also a composite morror 4 combining two cubical mirrors in the direction perpendicular to the mirror surface is arranged. The outgoing luminous fluxes of two semiconductor lasers of single beam are guided to an objective lens by refecting them to form the space of optical axes to be very small, and also by making a photodetector common for two light sources, the miniature optical disk device provided with two light sources is obtained, which is constituted as the optical disk device with the almost single beam except the light source part. |
