relative aperture

The characteristics of the system are both large linear field of view and large relative aperture.

该系统同时具有大线视场和大相对口径的特点,设计结果表明,成像质量达到了衍射极限.

However, you don't expect weak quality of the maximum relative aperture, high level of chromatic aberration, significant coma and noticeable astigmatism along with huge vignetting.

但是，您不希望弱质的最大相对孔径，色差，散光和显着的重大昏迷高水平随着巨大的暗角。

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。

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

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 of low light level night vision optical system with wide field 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

The present situation of the difficult measurement of aperture size and relative position of Brake master cylinder. To solve the problem, this paper desire an endoscope telecentric measuring instrument.

汽车制动主缸补偿孔大小和相对位置难以测量的现状一直困扰着汽车制造业，为了解决这一难题，本文有针对性的设计了一台内窥远心测量仪。