Light source device

Abstract

Abstract PURPOSE:To fine adjust relative position of a laser and a lens easily by simple operation by fine adjusting respective position of a lens holder that holds a collimator lens through an eccentric member and a semiconductor laser holder by an eccentric pin. CONSTITUTION:A collimator lens C and a collimator lens barrel 1 are made slightly eccentric. The lens barrel 1 fitted rotatably in a collimator lens holder 2 is rotated by rotating a gear G in front of it by a screw 3 and the lens C is finely moved in the direction of Z-axis by eccentricity with the lens barrel 1. The lens holder 2 that slides in the groove Y of a base B is finely moved in the direction of Y-axis by turning an eccentric pin 4, and the holder 7 of a semiconductor laser L is moved finely in the direction of X-axis by turning an eccentric pin 8 threaded in a base groove X. Accordingly, as positional adjustment in the direction of three axes is made at three places, the work is simple. The fine adjusting is easily made by the eccentric member, and the inexpensive and simple structure can be realized.

Inventors

• 👤 Akiyoshi Hamada
• 👤 浜田　明佳
• 👤 Hiroshi Nakamura
• 👤 広 中村

Bibliographic Details