The Ronchi test using a liquid crystal display as a phase grating

Miguel Mora-González; Francisco J. Casillas; Jesús Muñoz-Maciel; Roger Chiu-Zarate; Francisco G. Peña-Lecona

doi:10.1117/12.889600

27 May 2011 The Ronchi test using a liquid crystal display as a phase grating

Miguel Mora-González, Francisco J. Casillas, Jesús Muñoz-Maciel, Roger Chiu-Zarate, Francisco G. Peña-Lecona

Proceedings Volume 8082, Optical Measurement Systems for Industrial Inspection VII; 80823G (2011) https://doi.org/10.1117/12.889600
Event: SPIE Optical Metrology, 2011, Munich, Germany

Abstract

The Ronchi test with a Liquid Crystal Display (LCD) phase grating is used for testing convergent optical systems. The rulings are computer-generated and displayed on the LCD. We prove that it is possible to make a variable electronically phase grating by using an LCD. By displaying various phase-shifted rulings and capturing the corresponding ronchigrams, the phase is obtained with the conventional phase-shifting algorithms. Experimental results are shown.

Citation Download Citation

Miguel Mora-González, Francisco J. Casillas, Jesús Muñoz-Maciel, Roger Chiu-Zarate, and Francisco G. Peña-Lecona "The Ronchi test using a liquid crystal display as a phase grating", Proc. SPIE 8082, Optical Measurement Systems for Industrial Inspection VII, 80823G (27 May 2011); https://doi.org/10.1117/12.889600

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