(A)平行式准直仪（parallel collimator） (B)发散型准直仪（diverging collimator） (C)针孔型准直仪（pinhole collimator） (D)扇形射束准直仪（fan-beam collimator） ...
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parallel multichannel collimator 释义平行多孔型准直器 ; 平行多孔型准直器
parallel hole collimator 平行孔型准直器
parallel aperture collimator 平行孔准直器
parallel multihole collimator 平行多孔型准直器
high resolution parallel hole collimator 释义高分辨率平行孔准直仪
Then using another convex lens and a micrometer eyepiece the altered parallel rays is focused, and the imaging size of line pair of collimator imaged on the another convex lens is measured.
用一辅助凸透镜与一测微目镜进行平行光束的会聚，测出准直管玻罗板线对在辅助凸透镜焦平面上所成像的大小；
Firstly, a telescope system is made up with a concave lens and a long-focus convex lens, by which the angle of the parallel beam from the collimator can be change.
该方法借助一个焦距较长的凸透镜与被测凹透镜组成无焦系统，可以使准直管出射光束的张角发生改变；
A type of structure of optical fiber collimator and its technology are provided, and Infrared Parallel Detector for the device is developed in this paper.
提出了一种光纤准直器件的结构及其主要工艺，并研制出红外平行光检测仪。
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