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Proceedings Paper

The design of microscope field illumination system based on LED
Author(s): Jian Xu; Zexin Xiao; Tiancheng Lin
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Paper Abstract

The design of microscope field illumination system based on LEDs is demonstrated in this paper. An LED light source, drive circuit, control circuit and collecting lens are included in this system. The light source adopts high brightness white LED array or high power White LED; Area, brightness and angle of the high brightness white LED can be adjusted for the different need of angle of view; Brightness regulation of the high power white LED adopts Pulse-Width Modulation to make the output of brightness is of linearity and stability. In the same condition, the image collected at the LED illumination system compared with the image collected at traditional illumination system. The results shows that this system is of high performance, uniform illumination, good stability; This system is available to satisfy different micro-object and different microscope magnification, and is of great practical value.

Paper Details

Date Published: 15 January 2008
PDF: 7 pages
Proc. SPIE 6841, Solid State Lighting and Solar Energy Technologies, 68410U (15 January 2008); doi: 10.1117/12.757727
Show Author Affiliations
Jian Xu, Guilin Univ. of Electronic Technology (China)
Zexin Xiao, Guilin Univ. of Electronic Technology (China)
Tiancheng Lin, Guilin Univ. of Electronic Technology (China)


Published in SPIE Proceedings Vol. 6841:
Solid State Lighting and Solar Energy Technologies
Jinmin Li; Ling Wu; Yubo Fan; Yong-Hang Zhang; Michael E. Coltrin; Yuwen Zhao; Nuofu Chen; Vladimir M. Andreev; Jai Singh, Editor(s)

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