| 光谱学与光谱分析 |
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| Study on Photoelectric Dispersion Characteristic of Liquid Crystal Light Valve |
| HUANG Chong1,ZHOU Xue-ping1,OUYANG Yan-dong1,LIN Xu-sheng1,WU Yong-jun2,HUANG Yuan-ming1 |
1. Department of Physics, Shantou University, Shantou 515063, China
2. Shantou Goworld Display Co. Ltd., Shantou 515041, China |
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Abstract The electro-optical properties and dispersion characteristics of a liquid crystal light valve (LCLV) were investigated. A 90° twisted light valve (model TB3639) was used as a typical LCLV in the authors’ experiment. At 27 ℃ and a fixed frequency of 1 000 Hz, the transmitted light intensities (T) of the LCLV were measured as a function of wavelength (λ) at different applied voltages. From the measured T-λ curves, the dependence of contrast ratio k on the wavelength can be derived. The authors’ results showd that the TB3639 LCLV has a comparatively high contrast ratio and low dispersion within the visible region. In the range of 450-750 nm, the contrast ratio, with its value higher than 0.8, does not change much with the wavelength. Particularly the contrast ratio is higher than 0.95 with a minimum dispersion in the range of 550-670 nm.
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Received: 2005-01-06
Accepted: 2005-04-28
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Corresponding Authors:
HUANG Chong
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| Cite this article: |
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HUANG Chong,ZHOU Xue-ping,OUYANG Yan-dong, et al. Study on Photoelectric Dispersion Characteristic of Liquid Crystal Light Valve[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(03): 539-541.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2006/V26/I03/539 |
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