发明名称 |
Light source device, illumination device liquid crystal device and electronic apparatus |
摘要 |
A light source device 41A, 41B or 41C comprising a lens 44A, 44B or 44C which receives light from a light emitting device 43 such as LED. The lens 44A is a lens having the property that the directivity of exiting light in the Y direction is higher than the directivity in the X direction perpendicular to the Y direction. Namely, the light emitted from the light emitting device 43 is condensed in a narrow angular range in the Y direction, and is scattered in a wide angular range in the X direction. When the light source device 41A is used as a light source of an illumination device of a liquid crystal device, the height direction of a light guide in which the dimension is small coincides with the Y direction, and the width direction of the light guide in which the dimension is large coincides with the X direction.
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申请公布号 |
US2002048163(A1) |
申请公布日期 |
2002.04.25 |
申请号 |
US20010904177 |
申请日期 |
2001.07.12 |
申请人 |
KAWAKAMI HISANORI;ENDO KOGO |
发明人 |
KAWAKAMI HISANORI;ENDO KOGO |
分类号 |
G02F1/1335;F21V8/00;F21Y101/02;G02B6/00;G02F1/13357;G09F9/00;H01L33/58;H04N5/64;H04N5/66;(IPC1-7):F21V7/04 |
主分类号 |
G02F1/1335 |
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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