Optical brighteners are common for white fabrics or printed fabrics with white surface.
对于白色布料和印为白色表面的布料，用光学增白剂可以常见的。
An alternative non-contact optical topographical method based on the principles of white light interferometry (WLI) is presented here.
一种可供选择的基于白光测量原理之上的非接触光学形貌测量法被推出。
The optical methods of pseudocolor encoding of black and white picture based on density encoding some colour have been presented, but all methods required encoding process.
将黑白图象用光学手段按其密度编成各种颜色的方法，已有些报道，但均需编码过程。
The frequency pseudocolor-coded speech spectrogram is then obtained by means of a sampling narrow slit placed at Fourier plane in white-light optical spectrum analyzer.
然后在白光光学频谱分析系统中，利用放置在傅里叶频谱面上的取样狭缝得到按频率假彩色编码的频谱图。
When the diffractive optical lens is illuminated by white light, its focal length not only relates to material dispersion and wavelength dispersion, but also to aperture factor.
在白光照射下，衍射光学透镜的焦距不仅同材料色散和波长色散有关，而且还同孔径因子有关。
The experiments show that the positioning accuracy of extrapolation method for zero optical path difference point of fiber quasi-white interference signal is less than 0.5 interference fringes.
实验表明，采用该方法对光纤准白光干涉信号零光程差位置的定位精度优于0.5个干涉条纹。
By means of spatial encoding technique for black-white negative, positive and product positive of spectrogram an intensity pseudocolor-coded spectrogram is obtained in a white-light optical processor.
对语音谱图的黑白负片、正片及其乘积正片进行空间编码，在白光处理器中可得到按强度假彩色编码的语音谱图。
The source 103, 411 of optical radiation may be selected from a list including diode emitters, LEDs, multimode vertical-cavity surface-emitting lasers (VCSELs), laser diodes, and white light.
光辐射的光源（103、411）可以从包括二极管发光器、LED、多模垂直腔面发射激光器（VCSEL）、激光二极管和白光的列表中选择。
A new kind of white light optical fiber temperature sensor is used to test electromagnetic pulse harm to the electric explosive device.
电火工品的电磁脉冲危害测量采用新型白光光纤温度传感器。
The existing data about skin optical properties were obtained from in vitro skin samples or by mathematic simulating. Most of those are mainly about white or black race and seldom about yellow race.
已有的皮肤光学特性的资料均来源于离体皮肤标本或是经过数学模拟而得，而且这些资料主要来自对白色人种或黑色人种研究的结果，对黄色人种活体皮肤组织的光吸收特性的研究数据甚少。
The existing data about skin optical properties were obtained from in vitro skin samples or by mathematic simulating. Most of those are mainly about white or black race and seldom about yellow race.
已有的皮肤光学特性的资料均来源于离体皮肤标本或是经过数学模拟而得，而且这些资料主要来自对白色人种或黑色人种研究的结果，对黄色人种活体皮肤组织的光吸收特性的研究数据甚少。
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