发明名称 |
Multiple resolution photodiode sensor array for an optical encoder |
摘要 |
A method of controlling the resolution of an optical encoder for providing position information of an object which moves along a certain measuring direction where the optical encoder includes a light source that emits light and a data track that moves relative to the light source. The method includes directing modulated light from the data track to a plurality of photodiodes of a detection system having a resolution that has a first value and changing the resolution of the detection system to a second value without altering an arrangement of the plurality of photodiodes of the detection system during the changing from the first value to the second value.
|
申请公布号 |
US2003085345(A1) |
申请公布日期 |
2003.05.08 |
申请号 |
US20010992542 |
申请日期 |
2001.11.06 |
申请人 |
FRANKLIN RUTH E.;FORSYTH RICHARD MATHEW |
发明人 |
FRANKLIN RUTH E.;FORSYTH RICHARD MATHEW |
分类号 |
G01D5/34;G01D5/347;G01D5/36;(IPC1-7):G01D5/34 |
主分类号 |
G01D5/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|