发明名称 |
DIGITAL CAMERA-EQUIPPED GROUND TELESCOPE |
摘要 |
An imaging element (3) is disposed behind a group of objective lenses (1), and a retractable quick-return half-mirror (2) is disposed as an optical-path splitting means in the direction of an observation optical system between the group of objective lenses and the imaging element. Plane glass (9) for correcting an change in image-formation position caused by retraction of the quick-return half-mirror is inserted into the optical path of the imaging optical system in association with the retraction of the quick-return mirror from the optical axis of the imaging optical system. The quick-return half-mirror and the plane glass are respectively held at both ends of a mirror guide lever (8) of one rigid member to effect respective retractions and insertions. The quick-return half-mirror may be provided with an inclined plane for correcting an image-formation positional deviation in the optical axis crossing direction. |
申请公布号 |
EP1621913(A4) |
申请公布日期 |
2006.10.04 |
申请号 |
EP20040730724 |
申请日期 |
2004.04.30 |
申请人 |
KOWA KABUSHIKI KAISHA |
发明人 |
NAKANO, HIROKATSU;GOTO, YOSHIHIDE;TOMINAGA, SHUICHI;ISHIDA, TAKAYUKI |
分类号 |
G02B23/06;G02B23/04;G02B23/12;G02B26/08;H04N5/225 |
主分类号 |
G02B23/06 |
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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