Retroreflective Grating Generation and Analysis for Surface Measurement
Applied Optics, Vol. 37, Issue 13, pp. 2624-2627 (1998)
http://dx.doi.org/10.1364/AO.37.002624
Acrobat PDF (232 KB)
Abstract
An efficient system for retroreflective grating generation andanalysis has been constructed to measure the derivative and the contourof specular surfaces. In this system, a new optical configurationhas been provided to generate and capture a grating image with aretroreflective screen. Tests show that the system can detectindents and outdents with a maximum depth of less than 10μm. The method can be developed for automated industrialinspection and machine vision.
© 1998 Optical Society of America
OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(070.2590) Fourier optics and signal processing : ABCD transforms
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
Citation
Xianzhu Zhang and Walter North, "Retroreflective Grating Generation and Analysis for Surface Measurement," Appl. Opt. 37, 2624-2627 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-13-2624
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