half angle of divergence 中文意思是什麼

half angle of divergence 解釋
半擴散角
  • half : n (pl halves )1 半,一半;一部分。2 半小時;半英里;半品脫;半價票;〈美國〉半美元;半學年,一學期。...
  • angle : n 【英史】盎格魯人〈cf Angles〉。n 1 角,隅,角落;棱,嬗角。2 【數學】角,角位,角的度數。3 【機...
  • of : OF =Old French 古法語。
  • divergence : n. 1. 分歧,分岔,分出 (opp. convergence)。2. 【生物學】趨異 (opp. convergence); 【心理學】離散;【數、物】散度,開度;發散。3. 離題。
  1. On one hand, is the product of beam waist radius and half divergence angle, wavelength is not involved. so there is possibility to compare the acutal focusing ability among laser beams with different wavelength. on the other hand, is a calculated result by measuring experiment, and it is more brief and persuadable than m 2factor, since the latter one is a ratio with basic mode gauss beam

    論文研究論證了用值評價激光光束質量的實際意義在於兩個方面,一方面它僅僅包含了光束束寬和發散角,不涉及波長的因素,使不同波長激光束的可加工能力具有可比性;另一方面,值是根據對光束傳輸路徑上不同位置處束寬實際測量結果的計算值,比其在與基模高斯光束進行比值計算得到的m2因子更簡潔、更有說服力。
  2. 4 the half angle of divergence ah should not exceed 9, the tenth angle of divergence az should not exceed 14

    光線強度的半衰減角應不超過9 ,光線強度1 / 10衰減解應不超過14 。
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