Patent ID: 8879133
Filing Date: 2014-11-04
Classification: B41J,G02B

Abstract:
1. A multi-beam light source device comprising: a vertical cavity surface emitting laser device having monolithically fabricated multiple light sources; an optical sensor to monitor an output of beams of light emitted from the vertical cavity surface emitting laser device; a printed circuit board on which a driving circuit is formed to drive the vertical cavity surface emitting laser device based on monitoring signals from the optical sensor; a coupling lens to change the beams of light emitted from the vertical cavity surface emitting laser device to a predetermined state; a transparent board on which a wiring pattern is formed to wire an electrode of the vertical cavity surface emitting laser device and a terminal of the driving circuit; and a holding unit to integrally hold the vertical cavity surface emitting laser device, the optical sensor, the printed circuit board, the coupling lens, and the transparent board, wherein