发明授权
US07638756B2 Photodetector array and codewheel configuration for flexible optical encoder resolution
失效
光电检测器阵列和码盘配置,灵活的光学编码器分辨率
- 专利标题: Photodetector array and codewheel configuration for flexible optical encoder resolution
- 专利标题(中): 光电检测器阵列和码盘配置,灵活的光学编码器分辨率
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申请号: US12140645申请日: 2008-06-17
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公开(公告)号: US07638756B2公开(公告)日: 2009-12-29
- 发明人: Chee Keong Chong , Kay Keat Khoo , Chi Mun Ho
- 申请人: Chee Keong Chong , Kay Keat Khoo , Chi Mun Ho
- 申请人地址: SG Singapore
- 专利权人: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
- 当前专利权人: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
- 当前专利权人地址: SG Singapore
- 主分类号: G01D5/34
- IPC分类号: G01D5/34
摘要:
An optical encoder includes a coding element having a track with multiple transparent sections, a light source positioned to output light to the track, and a photodetector array, positioned to detect light that passes through the transparent sections of the track. The photodetectors of the photodetector array have larger width dimensions than the width dimensions of the transparent sections of the track. Resolution of the optical encoder may be adjusted by changing the resolution of the coding element.
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