该物镜红外透过率高、相对孔径大、分辨率较高。
The objective has high infrared transmission, large relative aperture and high resolution.
突破这一技术是研制大相对孔径非球面的关键环节。
It is a key step of manufacturing the large relative aperture aspherical surface to make a breakthrough at the technology.
通过优化耦合透镜相对孔径，可以实现较高效率的耦合。
Coupling efficiency can be maximized by optimizing the relative aperture of coupling lens.
介绍了一种大相对孔径、大视场微光夜视系统的设计方法。
Method design of low light level night vision optical system with wide field view and large relative was described.
还分析了透镜相对孔径 （F数 ）和成型模具等因素对透镜光学效率的影响。
The influences of factor F and modeling plate on the lens' optical efficiency are also analyzed.
基于非致冷焦平面阵列探测器的热成像系统，要求光学系统具有足够大的相对孔径。
Thermal imaging systems based on uncooled focal plane array detectors require their optical lens with a large relative aperture.
基于系统温度分辨力的要求，对光学系统的相对孔径及选频放大器的带宽进行了优化设计。
Bandwidth of amplifier and relative aperture of optical system are optimized based on the requirement of temperature resolution.
在光学系统优化设计的过程中，应用阻尼最小二乘法和适应法解决了大相对孔径、低畸变和MTF匹配等问题。
In optimized design, damped least squares method and adaptive procedure are used to get higher relative aperture, lower distortion and appropriate MTF, and so on.
研究结果表明：回波强度受导引头光路中光学镜头的相对孔径、摄像管靶面倾斜和离焦的影响较大；扫描激光光束的入射角等因素对回波强度也有一定的影响。
Research results show that the relative aperture of optical lens, the incline and defocusing of reflection plane in TV seeker optical system reduce the intensity of the "cat's eye" reflection.
与采用相同口径、相同相对孔径的全息凹球面光栅构成的平场光谱仪比较，在入射狭缝宽度相同的情况下，该光栅所构成的平场光谱仪的分辨率得到明显提高。
Comparing this spectrograph to the one with a holographic concave grating on spherical surface, the former has a higher resolution than the latter has when the widths of the incident slits are same.
与采用相同口径、相同相对孔径的全息凹球面光栅构成的平场光谱仪比较，在入射狭缝宽度相同的情况下，该光栅所构成的平场光谱仪的分辨率得到明显提高。
Comparing this spectrograph to the one with a holographic concave grating on spherical surface, the former has a higher resolution than the latter has when the widths of the incident slits are same.
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