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optic axis 【理】光軸。

optic disk

By using a reflector and two pentaprisms , one beam of light is separated into two parallel beams , then respectively they are received by two optical systems of the large scale photoelectric theodolite with certain imaging d - value which correspondingly represents each optic axis parallel error of these two optical systems 方法是利用一塊反射鏡和兩塊五棱鏡將一束準直光束分光成兩束平行光束,大型經緯儀的兩個光學系統分別接收這兩束平行光,兩束平行光所成像的脫靶量差值即為兩光學系統的光軸平行度。

The model of influence upon the parallel between servo optic axis from the angle error of installation plans presented . whereby the theoretic analysis is carried out and the analyzing results are obtained . the method of obtaining the angle error through measuring the installation plans with three - coordinates measuring device and fitting the measurement data is put forward and pave a road for lessening the influence 對安裝面角誤差影響隨動光軸平行性的問題也建立了數學模型,以此為出發點進行理論分析,給出了分析結果;提出用三坐標測量機測量安裝面,通過擬合得到安裝面的角誤差;從而為減小這一誤差源對隨動光軸平行性的影響鋪平了道路。

In order to measure the field of view matching of digital binoculars , the depth of optic axis parallelism and field of view matching are measured respectively . the collimator and pre - set lens are used to measure the depth of parallelism of optic axis . field of view meter is used to measure the field of view of binoculars and camera 為了檢驗數碼望遠鏡的視場匹配度,提出了采用平行光管和雙管前置鏡的組合測量光軸平行度以及采用視場儀測量數碼望遠鏡的望遠鏡和數碼相機的視場大小的方式,并對數碼望遠鏡的視場匹配度與望遠鏡和數碼相機的視場大小關系進行了理論推導,導出了數碼望遠鏡的視場匹配度測量的實際計算公式。

When we applied electric field , the the oritation of liquid crystal molecule axis reset . it induced the roate of optic axis . at last , the birefringence will change . this is the voltage - dependent birefringence of liquid 例如當對液晶施加電場時,液晶分子軸的排列會變化,從而引起液晶光軸的轉動,最終導致了液晶雙折射率的變化,這就是我們所說的液晶電控雙折射特性。