Light scanning device
AssigneeFUJIFILM Corporation
InventorNobuya Tanaka
Life of this patent
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Abstract
A light scanning device includes a light source that emits laser light, a mirror device that includes a movable mirror swinging about at least one axis and directionally changes the laser light emitted from the light source by reflecting the laser light using the movable mirror, and a condensing optical system that condenses the laser light directionally changed by the mirror device. The condensing optical system includes a half-silvered mirror that has a concave surface, and a diffusion plate in which a plurality of micromirrors that diffuse the laser light transmitted through the half-silvered mirror from the concave surface side are formed.
Claims6
A light scanning device comprising:
- a light source that emits laser light;
- a mirror device that includes a movable mirror swinging about at least one axis and directionally changes the laser light emitted from the light source by reflecting the laser light using the movable mirror;
- and
- a condensing optical system that condenses the laser light directionally changed by the mirror device,
- wherein the condensing optical system includes
- a half-silvered mirror that has a concave surface on which the laser light from the mirror device is incident, the half-silvered mirror being configured to specularly reflect a part of the laser light and transmit a part of the laser light, and
- a diffusion plate that is disposed on an opposite side from the concave surface of the half-silvered mirror and in which a plurality of micromirrors that diffuse the laser light transmitted through the half-silvered mirror from the concave surface side are formed.
Dependencies are inferred from the claim text.