发明申请
- 专利标题: ILLUMINATING DEVICE AND PROJECTION DISPLAY DEVICE
- 专利标题(中): 照明设备和投影显示设备
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申请号: US12559565申请日: 2009-09-15
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公开(公告)号: US20100073637A1公开(公告)日: 2010-03-25
- 发明人: Shinya MATSUMOTO , Takahisa ANDO , Takashi IKEDA , Kiyoko TSUJI , Yusuke ITOH
- 申请人: Shinya MATSUMOTO , Takahisa ANDO , Takashi IKEDA , Kiyoko TSUJI , Yusuke ITOH
- 申请人地址: JP Osaka
- 专利权人: SANYO ELECTRIC CO., LTD
- 当前专利权人: SANYO ELECTRIC CO., LTD
- 当前专利权人地址: JP Osaka
- 优先权: JP2008-241818 20080919; JP2009-083208 20090330
- 主分类号: G03B21/16
- IPC分类号: G03B21/16 ; G02B6/04 ; G03B21/20
摘要:
An illuminating device includes a plurality of light source portions for emitting light, a plurality of optical fibers for allowing incidence of the light emitted from the respective light source portions, and a bundling portion for bundling exit ends of the optical fibers. The light source portions or the optical fibers are constructed in such a manner that a flexure of each of the optical fibers is suppressed to mount the each optical fiber in a state close to a straight state. For instance, the light source portions are arranged in an arc shape, with a distance of each of the light source portions with respect to the bundling portion being set as the radius of the arc shape. In this arrangement the respective optical fibers are set to have lengths substantially equal to each other.