Method for regulating photoelectric probe position of high dense CD reading head |
Title: |
Method for regulating photoelectric probe position of high dense CD reading head |
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Application Number: |
200610097258 |
Application Date: |
2006/10/17 |
Announcement Date: |
2007/04/18 |
Pub. Date: |
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Publication Number: |
1949374 |
Announcement Number: |
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Grant Date: |
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Granted Pub. Date: |
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ApplicationType: |
Invention |
State/Country: |
32[China|jiangsu] |
IPC: |
G11B 7/22, G11B 7/13 |
Applicant(s): |
Jiangsu Yinhe Electronics Co., Ltd. |
Inventor(s): |
Ma Jianshe, Tang Yi, Zhang Buqing, Li Lihua, Cheng Xuemin, Mao Leshan, Qi Guosheng, Pan Longfa, Zhang Lei, Ji Jiandong, Wu Jianming |
Key Words: |
CD reading head, photoelectric probe position, regulating method |
Abstract: |
The invention discloses a location adjusting method for high density disc read head photo detector. It includes the following steps: adopting a flat mirror to make the reflected light plumbed to light shaft of object lens, removing cylindrical mirror in head light path structure and adjusting the distance between flat mirror and object lens to object lens focus, installing cylindrical mirror, adjusting the location of photo detector to make the sum of output voltage on the quadrant to maximum, adjusting the photo detector plumbing to the location of incident light plane and making the output voltage in four quadrant equal. The invention has high accuracy of photo detector. |
Claim: |
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Priority: |
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PCT: |
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