发明名称 |
Optical image pickup apparatus for imaging living body tissue |
摘要 |
A control portion of an optical image pickup apparatus includes a scan driver, a lock-in amplifier, and an A/D converter. The scan driver outputs a predetermined drive signal to a Y-scanning mirror and an X-scanning mirror and scans the Y-scanning mirror and the X-scanning mirror. The lock-in amplifier detects a signal level Vout of a frequency component of the drive signal of the scan driver among signals detected by a detector portion. The A/D converter converts a signal detected by a detector portion and a signal level of the detected signal of a frequency component of a drive signal detected by the lock-in amplifier to digital signals and outputs the digital signals to an image processor. Thus, mirror scan operations of the scanning mirrors can be securely detected.
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申请公布号 |
US7427747(B2) |
申请公布日期 |
2008.09.23 |
申请号 |
US20060494184 |
申请日期 |
2006.07.27 |
申请人 |
OLYMPUS CORPORATION |
发明人 |
ISHIHARA YASUSHIGE;OKAWA ATSUSHI;TOSAKA HIROSHI;XIE TIANYU;HIRATA TADASHI;HORII AKIHIRO;TOKUDA KAZUNARI |
分类号 |
H01J3/14;A61B1/00;A61B1/04;A61B1/07;G01B11/30;G02B21/00 |
主分类号 |
H01J3/14 |
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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