Collimator device and laser light source

摘要

The present invention relates to a laser light source and others for decreasing wavelength-by-wavelength differences of focal positions of focused components in collimating and then focusing polychromatic light with a wide spectrum width. The laser light source includes a collimator device, in which relative positions of emergence of a laser beam emitted from a polychromatic light source and a collimating lens composed of an achromatic lens can be adjusted at a 10 μm level or less.

主权项

1. A collimator device comprising:
a laser entrance unit which sets a position of entrance of a laser beam; a collimating lens which collimates the laser beam incoming from the laser entrance unit and which is composed of an achromatic lens; a collimating lens setup unit which sets up the collimating lens; and a position adjustment unit which enables position adjustment of a distance in an optical axis direction of the laser beam between the position of entrance of the laser beam and a setting position of the collimating lens at a 10 μm level or less.