中国科学技术大学 物理学院 光学与光学工程系, 合肥 230026
为了探究激光显示技术中白平衡点的选择, 基于颜色混合理论, 采用立体色域算法研究了三基色激光显示中白平衡点改变对立体色域的影响。以D65立体色域为标准, 结合色域覆盖率, 得到了激光显示系统合适的白平衡点选择范围。结果表明, 当白平衡点位于黑体轨迹上时, 不同的波长组合下, 白点色温的最佳选择都在6500K左右；进一步分析白点偏离黑体轨迹的情况, 可以得到不同波长组合下的激光显示系统白平衡点合适的选择范围。该研究可以为显示系统白平衡点的选择提供理论基础和依据。
激光技术 白平衡点 颜色理论 立体色域 色域覆盖率 laser technique white balance point color theory stereoscopic color gamut color gamut coverage
Author Affiliations
Abstract
1 Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei 230026, China
2 CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, iChEM, University of Science and Technology of China, Hefei 230026, China
A range-extended acidity detector based on Nile red was designed and analyzed in this work. In light of the good lasing property and solvatochromism characteristic of Nile red/ethanol solution, we have obtained laser spectra of sulfuric acid in different concentrations doped in this substrate. Moreover, to expand the acidity detection range, we proposed a tandem cuvette system containing rhodamine 6G/ethanol and Nile red/ethanol. Consequently, the detection range could be enlarged from 26 nm to 40 nm, by changing not only the wavelength peak but also by the intensity ratio of dual-wavelength laser output. In addition, by changing the detection and substrate materials, the whole detection range could be expanded, and therefore a wide range of applications in polarity and acidity detection could be implemented via this method.
acidity detector solvatochromism characteristic Nile red tandem cuvette system Chinese Optics Letters
2020, 18(11): 111402
