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Optical Engineering

Sinusoidal liquid crystal display grating in the Ronchi test
Author(s): Miguel Mora-Gonzalez; Noe Alcala Ochoa
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Paper Abstract

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.

Paper Details

Date Published: 1 June 2003
PDF: 5 pages
Opt. Eng. 42(6) doi: 10.1117/1.1572890
Published in: Optical Engineering Volume 42, Issue 6
Show Author Affiliations
Miguel Mora-Gonzalez, Ctr. de Investigaciones en Optica (Mexico)
Noe Alcala Ochoa, Ctr. de Investigaciones en Optica (Mexico)

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