相对口径 ( Relative aperture ) 相对口径 就是指由有效口径缩小光圈后的光束直径和该镜头焦距的比值。由于它也是焦距的比值,因此同样是F系数。
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generalized relative aperture 广义相对孔径 ; 广义光瞳函数
vertical accelerator relative aperture 加速乒直相对孔径
effective relative aperture [摄] 有效相对孔径
Large relative aperture 大相对孔径
horizontal accelerator relative aperture 水平加速器相对径孔
high relative aperture 大相对孔径
super relative aperture 超大相对孔径
Maximum Relative Aperture 最大相对孔径
On the basis of above, a design example of a lens whose operating wavelength is 0.40.9μm, focal length is 400 mm, full field-of-view angle is 6.2°and relative aperture is 1:4 is given.
在以上研究基础上给出工作波长范围在0.40.9μm、焦距为400mm、视场角为6.2°、相对孔径为1∶4的设计实例。
参考来源 - 宽光谱光学系统复消色差研究Coupling efficiency can be maximized by optimizing the relative aperture of coupling lens.
通过优化耦合透镜相对孔径,可以实现较高效率的耦合。
参考来源 - 空间光—光纤耦合技术研究·2,447,543篇论文数据,部分数据来源于NoteExpress
N the ratio of the equivalent focal length of a lens to the effective aperture of the lens; written as f/n, f:n, or fn, where n is the numerical value of this ratio and is equivalent to the f-number 相对孔径 [photog]
The objective has high infrared transmission, large relative aperture and high resolution.
该物镜红外透过率高、相对孔径大、分辨率较高。
Coupling efficiency can be maximized by optimizing the relative aperture of coupling lens.
通过优化耦合透镜相对孔径,可以实现较高效率的耦合。
It is a key step of manufacturing the large relative aperture aspherical surface to make a breakthrough at the technology.
突破这一技术是研制大相对孔径非球面的关键环节。
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