Specular surface flaw detection

Details Specular surface flaw detection Specular surface flaw detection

2008-04-22

2008-04-22

Lauchman, Layla G. (Department: 2877)

Optics: measuring and testing

Surface roughness

C356S237200, C356S612000

Reexamination Certificate

active

11318103

ABSTRACT:
An apparatus and a method for detecting low frequency specular surface flaws on coated substrates is disclosed. A method for detecting low frequency specular surface flaws may comprise: impinging visible electromagnetic radiation or light from an electromagnetic radiation source onto the coated substrate at an oblique angle, reflecting the visible electromagnetic radiation off the coated substrate onto a screen material to form a specular surface flaw reflected image, and recording the reflected image off the screen material with a photosensitive device to form a recorded reflected image.

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