相对孔径

TDICCD亚像元技术应用于小相对孔径光学系统

Application of TDI CCD and Sub-pixel Imaging Technique to Smaller Relative Aperture Optical Systems

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 .

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 .

根据椭圆的几何关系，研究了光谱相对孔径与椭圆的离心率和谱线探测角之间的关系，它随X射线波长增大而减小。

The relation between the spectrographic aperture ratio and elliptical eccentricity , spectral angle is also analyzed according to the elliptical geometry , it will decrease when the x-ray wavelength increases .

分析研究表明，改变CCD最小照度值，像管的增益，光学系统的透过率和相对孔径等探测传感器的性能参数，可以提高紫外告警系统的探测距离。

The analysis and conclusion showed that the detectable distance for UV warning system could be increased by changing the performance parameters of detector , such as CCD minimum luminous density , image intensifier 's gain , optical system 's transmittance and relative aperture .

大相对孔径长波红外广角物镜介绍了一块Φ520mm大相对孔径（F/1.6）轻量化椭球面反射镜的加工与检测方法。

High-Speed Long-Wave Infrared Wide-Angle Objectives The method of manufacturing and testing for an ellipsoid mirror with Φ 520mm diameter are discussed .

在以上研究基础上给出工作波长范围在0.4~0.9μm、焦距为400mm、视场角为6.2°、相对孔径为1∶4的设计实例。

On the basis of above , a design example of a lens whose operating wavelength is 0.4 ~ 0.9 μ m , focal length is 400 mm , full field-of-view angle is 6.2 ° and relative aperture is 1:4 is given .

TCECS传递效率的高低将影响摄谱效果，而TCECS的传递效率取决于柱面镜的反射率、晶体的积分衍射率、滤光膜的透射率和光谱相对孔径。

Spectrographic effects will be affected by the transmission efficiency of TCECS , which depends on the reflective ratio of a cylindrical mirror , the integrated diffraction of a crystal , the transmissivity of filter foil , and the spectrographic aperture ratio .

在相对孔径为0.9，波长为1.41mm的条件下，横向分辨率为2mm，3dB焦深为17mm，第一旁瓣比主瓣下降17dB。

For a case in which the F-number is 1.1 and the wavelength is 1.4 mm , the lateral resolution is 2 mm , the focal depth ( 3 dB ) is 17 mm , and the first side lobe is 17 dB lower than the main lobe .

衍射元件在大相对孔径红外镜头中的应用

Application of Diffractive Elements to Infrared Lenses of High Relative Aperture

大视场大相对孔径长波红外物镜

Long Wave Infrared Fast Objective with Wide Field of View

大相对孔径凹非球面镜的加工

The Manufacturing of Concave Aspheric Surface with Large Speed Aperture

超大相对孔径抛物面反射镜的补偿检验

Testing of paraboloid mirror with super relative aperture using compensator

用相移掩模光刻技术制作大相对孔径二元透镜的研究

The study of manufacturing large NA binary lens using the phase-shift photolithography

一种大相对孔径成像光谱仪前置物镜设计

Design of a fore-optical objective with large relative aperture for spectral imagers

用于大相对孔径红外镜头的衍射光学元件

Diffractive Optical Elements Used in High Relative Aperture Infrared Lenses

相对孔径为1：1镜头的光学系统设计

Optical system design for lens with relative aperture of 1:1

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 .

大视场大相对孔径水下专用摄影物镜的设计甚大光强[相对]孔径物镜

Design for Special Underwater Photography Objective Lens with Wide Angle and Large Relative Aperture

用大口径和大相对孔径的非球面反射镜拍摄一步彩虹全息图

Making one-step rainbow hologram by using an aspherical mirror with large aperture and large relative aperture

一种大视场、大相对孔径微光夜视光学系统的设计

Design of low light level night vision optical system with wide field and large relative aperture

大相对孔径（摄影）物镜

Object lens of large relative aperture

相对孔径与曝光量

Relative aperture and exposure volume

在相对孔径1：10时，输入面和频谱面处的象质均达到衍射极限。

The image quality is diffraction limited in both input and frequency planes at f / 10 .

讨论了补偿器像差的计算机全息图检验方法。这些方法的建立，对于突破这一领域的关键技术具有重要意义，为研制大相对孔径非球面打下了重要的技术基础。

The establishment of the methods is important technology base to research and manufacturing the large relative aperture .

当相对孔径达到1：1.3时，必然需要先进的工艺制造技术和设备；

When the relative aperture reaches to 1:1.3 , it is necessary to use advanced manufacturing technology and equipments .

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 .

带有高次曲面的扩束器物镜能对大相对孔径的透镜校正像差。

Objective lens of beam expander with a high-order curved surface can correct aberration for a deep relative aperture lens .

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 .

阐述了一种结构简单的检验大口径（相对孔径）非球面的方法&反射式零补偿法。

A simple structured optical testing method-reflecting null correction on a large F-number metal mirror under deep cryogenic environment is presented in the paper .