13 October 1995 Liquid crystal television (LCTV) as an optics education tool
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Abstract
In this paper, it is shown that twisted nematic liquid crystal television display panels (LCTV's) can be used as programmable optical elements to demonstrate basic optical phenomena (e.g., interference and diffraction) in the student optics laboratory. The LCTV'S considered are pixelated with gray levels appropriately manipulated to generate an optical element by electrically addressing the LCTV using image processing software. Programmable optical elements such as single or multiple apertures and slits, gratings (amplitude and phase), apertures with programmable shape and size, phase objects (wavefronts), and programmable pupil functions such as anamorphic lenses, lenslet arrays, and spherical lenses with programmable size, focal length, and generalized pupil functions that include wavefront aberration functions are discussed and the methods used to generate them are described. It is demonstrated that the LCTV combines the merits of discrete optical elements and graphic user interface based software tools to provide a simple and inexpensive means to study optical elements.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael K. Giles, Narasimha S. Prasad, Sean M. Doyle, "Liquid crystal television (LCTV) as an optics education tool", Proc. SPIE 2525, 1995 International Conference on Education in Optics, (13 October 1995); doi: 10.1117/12.224058; https://doi.org/10.1117/12.224058
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