最近聚焦距離 的英文怎麼說

中文拼音 [zuìjìnjiāo]
最近聚焦距離 英文
closest focusing distance
  • : 副詞(表示某種屬性超過所有同類的人或事物) most; best; worst; first; very; least; above all; -est
  • : Ⅰ形容詞1 (空間或時間距離短) near; close 2 (接近) approaching; approximately; close to 3 (親...
  • : 動詞(聚集; 聚積) assemble; gather; get together
  • : Ⅰ形容詞1 (物體受熱失去水分 呈現黃黑色並發硬、發脆) burnt; scorched; charred 2 (著急) worried;...
  • : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
  • : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
  • 最近 : 1. (近來) recently; lately; of late 2. (距離最近的) nearest3. (最近的將來) in the near future; soon
  • 聚焦 : [物理學] (使光或電子束等聚集於一點) focus; focusing; concentrate
  • 距離 : 1 (相隔的長度) distance; range; gap; space; spacing; separation 2 (相距) be apart from; be aw...
  1. In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam

    同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸,測量了不同光闌孔徑和不同稜角情況下的大無衍射和傳播軸附橫截面內微小光孔中的光強,實驗結果顯示當激光光束經過軸棱錐轉換後有一段功率變化很小,且分佈似貝塞爾分佈,符合無衍射光束的特性;經過后,呈現三維分佈中空的光束bottlebeam ,實驗結果與理論分析基本吻合。
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