发明名称 |
Laser illumination device, illumination method, semiconductor element manufacturing method, projection display device, and image display method using the projection display device |
摘要 |
A laser illumination device for providing a light intensity distribution of a high-intensity and uniform illumination light flux is obtained. The device includes a plurality of light source modules (20) each including: a plurality of light source units (8), in each of which a semiconductor laser (1), and a laser medium (5) and a nonlinear material (7) which are flat-shaped and have a waveguide structure are arranged on the same plane, for performing continuous oscillation in a waveguide mode of the laser medium (5); and a first optical system (12) for coupling laser oscillation beams from the plurality of light source units (8). The device further includes: a second optical system (15) for coupling laser light beams propagating from the plurality of light source modules (20) through first optical fibers (13) and a second optical fiber array (14); a uniformization element (16) for converting a laser light beam from the second optical system (15) into a uniform laser light beam; and a third optical system (17) for projecting, to a substrate (19) which is an illuminated surface (18), the uniform laser light beam obtained through the uniformization element (16) at a predetermined magnification, to produce an illumination light flux (11).
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申请公布号 |
US8517542(B2) |
申请公布日期 |
2013.08.27 |
申请号 |
US20100996888 |
申请日期 |
2010.04.23 |
申请人 |
ENDO TAKAO;YAMAMOTO SHUHEI;HIRANO YOSHIHITO;TAMAGAWA YASUHISA;MITSUBISHI ELECTRIC CORPORATION |
发明人 |
ENDO TAKAO;YAMAMOTO SHUHEI;HIRANO YOSHIHITO;TAMAGAWA YASUHISA |
分类号 |
G03B21/14 |
主分类号 |
G03B21/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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