Apparatus and method for 3-D measurement using holographic scann

Details Apparatus and method for 3-D measurement using holographic scann Apparatus and method for 3-D measurement using holographic scann

1986-07-11

1988-07-19

Arnold, Bruce Y.

Optics: measuring and testing

By polarized light examination

With light attenuation

350 371, G02B 2610, G01B 1124

Patent

active

047580933

ABSTRACT:
A 3-D measurement system utilizing a holographic scanner is provided with beam direction compensation means for compensating for changes in angular deflection of the scanner and further means is provided for synchronizing the scanner diffraction segments with the camera imaging mechanism of the 3-D system as well as for providing multiple offsets of the projected beam.

REFERENCES:
patent: 4428643 (1984-01-01), Kay

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