查询词典 angular aperture

The relationships between main specifications of the instrument, such as tempe rature measurement accuracy of the instrument, temperature measurement sensitivi ty and temperature measurement range, and technical parameters, such as working wavelength of the instrument, bandwidth of amplifier and relative aperture of op tical system were analyzed.

分析了该系统的测量精度、测温灵敏度及测温范围等主要技术指标与激光源的能量、仪器的工作波长、放大器带宽、光学系统的相对孔径等技术参数间的关系。

A design of a lens, whose operating wavelength is (0.486～0.863)μm, full field-of-view angle is and relative aperture is 1∶7.85, is presented on the basis of the theoretical calculation and the optimization of optical design software ZEMAX.

通过理论分析和ZEMAX光学设计软件的优化，结合工程应用给出了工作波长为（0.486～0.863）μm、全视场，相对孔径为1∶7.85的镜头设计实例，其二级光谱为0.01mm。

A design example of a lens whose operating wavelength is 0.4～0.9μm,focal length is 400 mm,full field-of-view angle is 6.2°and relative aperture is 1:4 is given on the basis of the theoretical calculation and the optimization of optical design software ZEMAX.

通过理论计算和ZEMAX光学设计软件的优化，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。设计结果表明，二级光谱得到了很好的校正，像质优良。

A design example of a lens whose operating wavelength was 0.4-0.7μm,full fieldofview angle was 80°and relative aperture was 1∶1.5 was given on the basis of the theoretical calculation and the optimization of optical design software ZEMAX.

通过理论计算和ZEMAX光学设计软件的优化，给出工作波长为0.4～0.7μm、全视场角为80°，相对孔径为1∶1.5的镜头设计实例。

A new method named Film Heating-Forming Photoresist Method is proposed to fabricate MLA with long focal length and expand the range of relative aperture of MLA.

提出一种制作凹透镜阵列的新的方法—曲率倒易刻蚀法，在Si、SiO〓等衬底上成功地制作出凹透镜阵列器件，为国内首创。

The imaging quality of this lens was evaluated. The results show that it has an excellent imaging quality, at spatial frequency of 42lp/mm, its MTF value is greater than 0.5 for 0.7ω, and it meets all the specifications and requirements of WFOV and large relative aperture for underwater photographic application.

质量评价结果表明：设计的摄影物镜成像质量优异，在空间频率为42lp/mm时0.7ω的MTF值高于0.5，且达到各项性能指标，能够满足水下微光摄影物镜对大视场大相对孔径的需求。

Firstly, the infrared optical system was usually designed to large-sized relative aperture system by reason of the target detected by the system was far, and weak radiant energy. However, the infrared image was suffered from geometric distortions due to wide-angle design of the infrared optical system.

为了获得更多的辐射能量，红外光学系统一般设计为大相对口径系统，这就不可避免的造成光学上像差校正的困难，进而导致红外图像的几何畸变。

The key to apply CCD to implement mammography is to improve the coupled efficiency of light from scintillation screen to CCD, and it is necessary that the image system has a large relative aperture and adopts close imaging, which makes the CCD image seriously distorted.

为提高由闪烁屏到CCD的光耦合效率，减小大相对孔径和近距离成像造成CCD图像严重失真，提出一种有效补偿图像失真的预处理方法。

As a kind of imaging radars, synthetic aperture radar improves its resolution by means of moving and emitting pulse repetitiously. The issues about target detection of SAR are often a 憄ost-process?of the SAR imaging.

合成孔径雷达(synthetic aperture radar，简称SAR)通过对地面目标的多次照射来提高方位向上的目标分辨能力，由此使现有的SAR目标检测算法通常是一个基于SAR图像的"后处理"过程。

By correctly sizing the cavity and aperture, the device can be made series resonant at any desired frequency.

通过适当选择空腔和入口孔的尺寸，可保证在要求的频率下获得共振状态。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我