point-focal lens 中文意思是什麼

point-focal lens 解釋
聚焦點透鏡
  • point : n 1 尖頭,尖端;尖頭器具;〈美國〉筆尖;接種針,雕刻針,編織針;小岬,小地角;【拳擊】下巴。2 【...
  • focal : adj. 1. 【物理學】焦點的,(集中)在點上的,有焦點的。2. 【醫學】病灶的,病灶性的。adv. -ly
  • lens : n (pl lenses)1 透鏡;一組透鏡。2 【解剖學】(眼球的)晶體。3 【攝影】(照相機的)鏡頭。4 凸透鏡...
  1. Mm single focal point lens shutter cameras

    鏡頭快門單焦點相機
  2. In order to measure the focal length of lens automatically, linear ccd is used as receiver on behalf of eyes on the basis of original experiment equipment measuring the focal length of lens. a kind of method determining the focal plane automatically is put forward and analysed theoretically in this text, based on the theory of point spread function

    本文基於點擴散函數理論,提出一自動檢焦方法,對該方法進行理論分析,並通過實驗驗證了該方案的可行性;確定焦面后,在處理測量數據過程中,文中對常用的幾種方法進行了比較和分析,最後採用質心法來實現對透鏡焦距的測量。
  3. ( 3 ) properties of yag laser q - switching by sbs were experimentally investigated, and the laser without back reflective mirror was devised, and laser pulse was obtained at repetition rate ihz and 5hz by optimizing lens focal length, length of cell and position of lens focal. point, resulting quality of pc is ideal

    ( 4 ) 、實驗研究了sbs的yag激光器,設計了無後向反射鏡的sbsyag激光器。在泵浦能量17j 、重復頻率分別為1hz 、 5hz時,得到穩定輸出的能量為19mj 、脈寬為10 . 7ns 、光束質量很好的激光脈沖。
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