Optics: measuring and testing – Inspection of flaws or impurities – Having predetermined light transmission regions
Reexamination Certificate
2005-05-10
2005-05-10
Pham, Hoa Q. (Department: 2877)
Optics: measuring and testing
Inspection of flaws or impurities
Having predetermined light transmission regions
C250S559420
Reexamination Certificate
active
06891612
ABSTRACT:
An optical inspection device (1) that detects holes in an object to be inspected (11), comprising: a light source (41) that illuminates the object to be inspected by emitting illumination light from light-emitting points (41a) that are arranged in a linear or planar pattern; a fluorescent member (61), disposed on the opposite side from the light sources across the object to be inspected, having an incident surface (61A) on which the part of the illumination light emitted from the light source that passes through the holes in the object to be inspected falls incident, and a detection surface (61B) from which fluorescent light that is generated according to the incidence of the illumination light is emitted; and a photodetector (71) that detects fluorescent light that is emitted from the detection surface of the fluorescent member.
REFERENCES:
patent: 3710129 (1973-01-01), Gibson
patent: 4371897 (1983-02-01), Kramer
patent: 4728800 (1988-03-01), Surka
patent: 5798531 (1998-08-01), Harris
patent: 6380549 (2002-04-01), Oster et al.
patent: 58-70134 (1983-04-01), None
patent: 4-282441 (1992-10-01), None
patent: 4-309849 (1992-11-01), None
patent: 04 309849 (1992-11-01), None
patent: 5-281156 (1993-10-01), None
patent: 9-318558 (1997-12-01), None
patent: 11-326239 (1999-11-01), None
patent: 2001249005 (2001-09-01), None
M. F. Laguesse; “Optical Detection and Localization of Holes in Strips Using A Fluorescent Fiber Sensor”; IEEE Transactions on Instrumentation and Measurement, IEEE Inc., vol. 39, No. 1; Feb. 1990; pp. 242-246; XP000101446.
Ito Toyoshi
Koike Takashi
Hamamatsu Photonics K.K.
Pham Hoa Q.
LandOfFree
Optical inspection device that detects holes in an object to... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical inspection device that detects holes in an object to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical inspection device that detects holes in an object to... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3392789