Optical observation device and method for observing articles...

Optics: measuring and testing – Shape or surface configuration

Reexamination Certificate

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C356S237100, C110S185000

Reexamination Certificate

active

06859285

ABSTRACT:
An optical system for viewing hot objects is disclosed. The system projects electromagnetic radiation to the part surface and detects the reflected portion. Based on wavelength and/or modulation of the applied illumination, the surface characteristics of the part can be observed without interference from self-emitted radiation.

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