发明名称 |
Optical encoder devices and methods using a continuously scaled code disk |
摘要 |
A code disk, an optical encoder using such a disk and a method thereof are described. The code disk includes a first region on the disk and a second region that is adjacent to the first region. The first region increases continuously in size in a radial direction from a minimum at a first angular position to a maximum that occurs 360 degrees from the first angular position. One of the first and second regions allows light to be transmitted therethrough to a detector, and the other of the first and second regions prevents light from being transmitted therethrough. The detector generates an output that corresponds to the amount of light transmitted through the code disk.
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申请公布号 |
US2005156104(A1) |
申请公布日期 |
2005.07.21 |
申请号 |
US20040762951 |
申请日期 |
2004.01.21 |
申请人 |
CHONG CHEE K.;LEE CHIN Y. |
发明人 |
CHONG CHEE K.;LEE CHIN Y. |
分类号 |
G01D5/347;(IPC1-7):G01D5/34 |
主分类号 |
G01D5/347 |
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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