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Proceedings Paper

Study on far-field image using microlens array integrated with LCD
Author(s): Fugui Yang; Hong Chang; Lei Dong; Anting Wang; Hai Ming
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Paper Abstract

We firstly propose the technique to realize far-filed image by integrating the microlenses array with LCD. This technique is expected to resolve eye-gazing problem in common teleconferencing system without affecting the display performance of LCD. The characteristics of far-field diffraction image and geometric image formed by single microlens are simulated and analyzed. The simulation shows that the quality of image is seriously reduced by geometric aberration and diffraction of the small aperture diameter for aspherical and spherical surface profile refractive microlens. The main problem of image acquisition with high resolution is that the signal obtained by cell detector is contributed not only by the sampling point in the axis of the corresponding cell microlens but also sampling points nearby. In simulation, Microlenses of 300μm diameter same with pixel size of LCD were used in orthogonal array at 1mm pitch, which is also the sampling interval in object space. These microlenses array with unit number 213x246 are placed up to 600mm away from object surface. Monte Carlo optimization algorithm is adopted to give accurate inversion results. The typical results are presented with our main conclusions.

Paper Details

Date Published: 25 November 2009
PDF: 9 pages
Proc. SPIE 7509, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration, 750904 (25 November 2009); doi: 10.1117/12.838094
Show Author Affiliations
Fugui Yang, Univ. of Science and Technology of China (China)
Hong Chang, Univ. of Science and Technology of China (China)
Lei Dong, Univ. of Science and Technology of China (China)
Anting Wang, Univ. of Science and Technology of China (China)
Hai Ming, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7509:
2009 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration
Xuping Zhang; Wojtek J. Bock; Xuejun Lu; Hai Ming, Editor(s)

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