METROLOGY

Sinusoidal liquid crystal display grating in the Ronchi test

[+] Author Affiliations
Miguel Mora-Gonza´lez, Noe Alcala´ Ochoa

Centro de Investigaciones en O´ptica, Apartado Postal 1-948, Leo´n, Guanajuato, Me´xico E-mail: alon@foton.cio.mx

Opt. Eng. 42(6), 1725-1729 (Jun 01, 2003). doi:10.1117/1.1572890
History: Received Aug. 12, 2002; Revised Nov. 19, 2002; Accepted Nov. 19, 2002; Online May 21, 2003
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The Ronchi test with a LCD amplitude sinusoidal grating is used for testing convergent optical systems. The rulings are computer-generated and displayed on the LCD. By displaying various phase-shifted rulings and capturing the corresponding images, the phase is obtained with the conventional phase-shifting algorithms. For reference, experimental results are compared with those on a commercial Fizeau interferometer. © 2003 Society of Photo-Optical Instrumentation Engineers.

© 2003 Society of Photo-Optical Instrumentation Engineers

Topics

LCDs

Citation

Miguel Mora-Gonza´lez and Noe Alcala´ Ochoa
"Sinusoidal liquid crystal display grating in the Ronchi test", Opt. Eng. 42(6), 1725-1729 (Jun 01, 2003). ; http://dx.doi.org/10.1117/1.1572890


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