optical filter

we can also make optical filter glass of special size according to our client requirement.

我们也可按照客户的需要,定制特殊规格的光学滤色镜.

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optimization of a novel ladder-type structure tunable optical filter

新型阶梯形可调谐光滤波器的优化设计

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Coating a narrow band-pass optical filter by using back reflective method monitored on a static and change-able test glass

在固定比较片上用上反射监控方法生产窄带干涉滤光片

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in order to obtain a higher snr, an optical filter is used to reduce the interference of background light.

系统采用光滤波器，大大降低了杂散光的干扰，具有较高的信噪比。

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This paper reports the theoretical study on the transmission efficiency, bandwidth and frequency shift of anomalous dispersion atomic optical filter with off axis incident beam.

本文首次对反常色散原子滤光器在斜入射（0～π/2）条件下的透过率、带宽和频移等特性进行了理论研究；

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This paper discusses the method of coding the three_basic_colour image of the colour transparent film with a Ronchi grating and optical filter, recording it on a white_black film, and making a colour hologram with monochromatic laser.

通过使用Ronchi光栅和滤波片，把一张彩色透明片的红、绿、蓝信息编码记录在一张黑白胶片上并用单色激光制作彩色全息图。

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In the detecting system of laser illumination and laser guide star ( LGS), the application of optical filter is an important approach to reduce background noise and improve signal-to-noise ratio ( SNR).

在激光照明和激光导星的探测系统中，运用滤光器（片）是抑制背景噪声、提高信噪比的重要途径之一。

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in each main node in the dwdm network involves a lot of optoelectronic components and various function modules. optical filter represents a big class of key photonic components.

DWDM光网络的每个节点又包含着大量的光电子器件和各种功能模块，光学滤波器是DWDM光网中一类重要的光子器件。

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in this dissertation, the oc label is proposed to be modulated on the optical subcarrier. the scheme not only maintains the all-optical label processing but also simply realizes the label extraction by using optical filter.

本文提出了一种将光码调制到光副载波上的方案，既保持了光码在光域处理的优点，又实现了采用光滤波器来分离标签的功能。

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The results indicate that, under the thermal noise approximation, the measurement accuracy of Brillouin frequency shift is dependent on thermal noise, the derivative of the transmission function of the edge optical filter and the power of Brillouin scattering optical signal.

结果表明，在热噪声近似下，布里渊频移测量精度与热噪声、边缘光滤波器透射函数的导数及布里渊散射光信号功率有关。

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image acquisition system mainly included: plasma arc generator, optical filter device, ccd image sensor and image display output device.

为采集到加工状态下的非对称等离子体弧图像，论文自行设计搭建了图像采集系统，主要包括：等离子体弧发生装置，光学滤光装置，CCD图像传感器和图像显示输出装置。

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theoretical study of the tunable optical filter properties based on photonic crystals

光子晶体可调谐滤波特性的理论研究

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because of very narrow passband and very high out-of-band suppression of the na atomic optical filter, the lidar echo at 80~ 110 km altitude can be obtained even in the noon-time when the background light from the sun is very strong.

由于钠原子滤光器极窄的滤光带宽和极强的带外抑制，使得即使在中午太阳背景光最强的时段，也能以光子计数方式探测到80～110km高空钠层的微弱回波信号。

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the accuracy requirement on optical filter used in image data compression

用光学方法实现图像数据压缩时对滤波器的精度要求

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based on analyzing the operational principle of olpf and function of ir-cut optical filter, a special ir-cut coating is designed to make the ccd camera obtain colored image in daytime and black-white image at night.

在分析光学低通滤波器原理和红外截止滤光片作用的基础上，设计了一种特殊的红外截止膜系，可使CCD摄像机白天成彩色像，夜晚成黑白像。

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theoretical research on photonic crystal optical filter

光子晶体光滤波器的研究

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Study of the Stark Shift of New Type Rubidium Atomic Optical Filter

新型铷原子滤光器斯塔克频移研究

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liquid crystal filter system with a high precision for night vision is comprised of a wideband optical filter having a critical wavelength, and a liquid crystal notch filter.

高精度夜视液晶滤光系统包括一个具有临界波长的宽带光学滤光器和一个液晶陷波滤光器。

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