Optical module and projector
AssigneeSeiko Epson Corporation
InventorTakuo YONEYAMA
Life of this patent
Estimating the term…
Abstract
Optical module includes of the present disclosure a light source including a first light emitting section configured to emit first light having a first wavelength; a light scanning section that scans light emitted from a light source; and a light modulation section that, based on image information, modulates scanned light scanned by the light scanning section, wherein the light scanning section changes a light path length of the scanned light incident on the same position of the light modulation section to be equal to or longer than a coherence length of the first light by an optical element that rotates around a rotation axis extending along a direction intersecting an incident direction of the light.
Claims8
An optical module comprising:
- a light source including a first light emitting section configured to emit first light having a first wavelength;
- a light scanning section that scans light emitted from the light source;
- and
- a light modulation section that, based on image information, modulates scanned light scanned by the light scanning section, wherein
- the light scanning section uses an optical element that rotates around a rotation axis extending along a direction intersecting an incident direction of the light to change a light path length of the scanned light incident on a same position of the light modulation section to be equal to or longer than a coherence length of the first light.
Dependencies are inferred from the claim text.