发明名称 |
Light apparatus of an optical mouse with an aperture stop and the light projection method thereof |
摘要 |
A light apparatus of an optical mouse with an aperture stop and the light projection method thereof are described. The light apparatus has at least one image-forming lens and an aperture stop. The image-forming lens defines an interior area and an external area. The aperture stop has a pupil. The aperture stop shelters the external area of the image-forming lens. The pupil of the aperture stop corresponds to the interior area. The present light apparatus will not produce a light halo on the image detection unit of the optical mouse when the light source of the optical mouse projects a light that passes through the image-forming lens of the light apparatus. Therefore, the image detection unit clearly detects the image of the image detection surface.
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申请公布号 |
US7142376(B2) |
申请公布日期 |
2006.11.28 |
申请号 |
US20050091438 |
申请日期 |
2005.03.29 |
申请人 |
PACER TECHNOLOGY CO., LTD. |
发明人 |
LU SHU-FENG |
分类号 |
G02B9/00;G02B9/08 |
主分类号 |
G02B9/00 |
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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