Title:
Coherent light equipment and a projector
Document Type and Number:
Japanese Patent JP5984013
Kind Code:
B2
Abstract:
A coherent light source apparatus includes a coherent light source, a first optical system, a light deflection unit, a second optical system and a light mixing unit disposed in that order. The coherent light source forms a first light emission region, and light projected therefrom forms a second light emission region near the light deflection unit, which deflects light flux from the second light emission region. The second optical system forms a third light emission region which is conjugate to the second light emission region near an input end of the light mixing unit, which mixes angle and a position components of incident light. The light deflection unit is configured to continuously changing a direction in which the light flux is deflected, thereby reducing speckling in light emitted from the light mixing unit.
Inventors:
Masashi Okamoto
Touma Takahiro
Yuichi Miura
Mikio Shimizu
Touma Takahiro
Yuichi Miura
Mikio Shimizu
Application Number:
JP2012273007A
Publication Date:
September 06, 2016
Filing Date:
December 14, 2012
Export Citation:
Assignee:
Ushio, Inc.
International Classes:
G02B27/48; F21S2/00; G02B19/00; G03B21/14; H01S5/00
Domestic Patent References:
| JP2011507042A | ||||
| JP2010169828A | ||||
| JP1235289A | ||||
| JP2002118043A |