Endoscope light source unit

Details Endoscope light source unit Endoscope light source unit

2006-07-05

2010-12-07

Philippe, Gims S (Department: 2621)

Television

Special applications

With endoscope

C600S180000

Reexamination Certificate

active

07847817

ABSTRACT:
An endoscope light source unit includes an aperture device having aperture openings of different opening ratios, for selectively positioning one of the aperture openings between the incident end of a light guide and a light source; a driving device for moving the aperture device; an index detection device for detecting whether a specific aperture opening of the aperture device is positioned between the incident end face and the light source; an aperture opening position detection device for detecting whether any one of the aperture openings lies between the incident end face and the light source; a measuring device for measuring a driving amount of the driving device with respect to a position of the specific one of the aperture openings; and a controller for driving the driving device based on measurements from the index detection device, the aperture position detection device, and the measuring device.

REFERENCES:
patent: 4803550 (1989-02-01), Yabe et al.
patent: 5060632 (1991-10-01), Hibino et al.
patent: 6322497 (2001-11-01), Takahashi
patent: 2008/0294105 (2008-11-01), Gono et al.
patent: 2003-305008 (2003-10-01), None
patent: 2006-006803 (2006-01-01), None
patent: 2006-006832 (2006-01-01), None
patent: 2006-051151 (2006-02-01), None
patent: 2006-136519 (2006-06-01), None
patent: 2006-149933 (2006-06-01), None
patent: 2006-149939 (2006-06-01), None
U.S. Appl. No. 11/428,596 to Negishi, which was filed on Jul. 5, 2006.
U.S. Appl. No. 11/428,752 to Negishi, which was filed on Jul. 5, 2006.
English language Abstract of JP 2003-305008.
English language Abstract of JP 2006-6803.
English language Abstract of JP 2006-6832.
English language Abstract of JP 2006-051151.

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