Measuring unit for determining dimensions of test pieces, prefer

Details Measuring unit for determining dimensions of test pieces, prefer Measuring unit for determining dimensions of test pieces, prefer

1999-04-02

2000-07-11

Font, Frank G.

Optics: measuring and testing

By polarized light examination

With light attenuation

356372, 356375, 356376, 356378, 356384, G01B 1114, G01B 1100, G01B 1122, G01B 1124

Patent

active

060881054

ABSTRACT:
A measuring unit for determining dimensions of workpieces has an endoscope unit with two apertures through which identical linear light patterns are projected onto a surface of the workpiece. The identical linear light patterns create a moire pattern on the surface. The endoscope unit has at least one camera head for detecting the moire pattern.

REFERENCES:
patent: 4131365 (1978-12-01), Pryor
patent: 4403860 (1983-09-01), Pryor
patent: 4618884 (1986-10-01), Nagasaki
patent: 4637715 (1987-01-01), Idesawa
patent: 5871391 (1999-02-01), Pryor

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