Optical apparatus provided with correction collar for...

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems

Reexamination Certificate

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C250S208100, C359S383000, C359S384000, C359S391000

Reexamination Certificate

active

07825360

ABSTRACT:
This is an optical apparatus provided with an objective with a correction collar for correcting aberration due to an error in the optical thickness of a piece of cover glass comprising a focusing mechanism for changing a distance between the objective and the sample, an optical thickness detecting unit for detecting the optical thickness of the cover glass, an operating unit for calculating the amount of aberration correction, based on the optical thickness of the cover glass detected by the optical thickness detecting unit, a driver unit for driving a correction collar, based on the amount of aberration correction calculated by the operating unit and an imaging sensor for forming the image of the sample that passes through the objective.

REFERENCES:
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patent: 5483079 (1996-01-01), Yonezawa
patent: 6043475 (2000-03-01), Shimada et al.
patent: 6473228 (2002-10-01), Toshimitsu
patent: 2002/0036823 (2002-03-01), Shimada et al.
patent: 2002/0191502 (2002-12-01), Hirai
patent: 2005/0024718 (2005-02-01), Sase et al.
patent: 2005/0068614 (2005-03-01), Yoneyama et al.
patent: 2006/0157637 (2006-07-01), Karasawa et al.
patent: 2008/0055718 (2008-03-01), Kono et al.
patent: 2003-043374 (2003-02-01), None
patent: 2003-158666 (2003-05-01), None
patent: 2003-161887 (2003-06-01), None
patent: WO 2005/096062 (2005-10-01), None
Partial European Search Report dated Jul. 29, 2008, issued in a counterpart European Search Report.
An Extended European Search Report dated Sep. 26, 2008, issued in a counterpart European Application.

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