Apparatus for monitoring the functionality of an optical...

Details Apparatus for monitoring the functionality of an optical... Apparatus for monitoring the functionality of an optical...

2007-03-20

2007-03-20

Rosenberger, Richard A. (Department: 2877)

Optics: measuring and testing

Inspection of flaws or impurities

Transparent or translucent material

C356S445000

Reexamination Certificate

active

10660790

ABSTRACT:
An apparatus for monitoring the functionality of an optical element includes a detector and a light source whose radiation is reflected to the detector by a surface of the optical element facing the detector and the light source.

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Dowden, S. et al., “Reflectometer for fast measurements of mirror reflectivity,” Measurement Science and Technology, IOP Publishing, Bristol, GB, Bd. 8, Nr. 11, pp. 1258-1261 (1997).
Takahashi H. et al., “Automatic reflectivity map measurement of high power CO2laser optics,” Optics and Laser Technology, Elsevier Science Publishers BV., Amsterdam, NL, Bd. 21, Nr. 1, pp. 37-39 (1989).

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