1 June 2003 Sinusoidal liquid crystal display grating in the Ronchi test
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Optical Engineering, 42(6), (2003). doi:10.1117/1.1572890
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.
Miguel Mora-Gonzalez, Noe Alcala Ochoa, "Sinusoidal liquid crystal display grating in the Ronchi test," Optical Engineering 42(6), (1 June 2003). http://dx.doi.org/10.1117/1.1572890
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KEYWORDS
LCDs

Ronchi rulings

Diffraction

Fizeau interferometers

Optical testing

Phase shifts

Wavefronts

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