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diopter

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ลองค้นหาคำในรูปแบบอื่นๆ เพื่อให้ได้ผลลัพธ์มากขึ้นหรือน้อยลง: -diopter-, *diopter*
English-Thai: HOPE Dictionary [with local updates]
dioptern. หน่วยวัดอำนาจหักเหแสงของเลนส์ใช้อักษรย่อว่า D

อังกฤษ-ไทย: คลังศัพท์ไทย โดย สวทช.
Dioptersไดออพเตอร์ [การแพทย์]

Japanese-English: EDICT Dictionary
ジオプトリー;ジオプタ[, jioputori-; jioputa] (n) diopter (optical unit of refraction in lenses) (ger [Add to Longdo]
ディオプター[, deioputa-] (n) diopter [Add to Longdo]

Chinese-English: CC-CEDICT Dictionary
屈光度[qū guāng dù, ㄑㄩ ㄍㄨㄤ ㄉㄨˋ, ] diopter [Add to Longdo]

Result from Foreign Dictionaries (2 entries found)

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Diopter \Di*op"ter\, Dioptra \Di*op"tra\, n. [L. dioptra, fr.
     Gr. ?. See 2d {Dioptric}.]
     An optical instrument, invented by Hipparchus, for taking
     altitudes, leveling, etc.
     [1913 Webster]

From WordNet (r) 3.0 (2006) [wn]:

  diopter
      n 1: a unit of measurement of the refractive power of a lens
           which is equal to the reciprocal of the focal length
           measured in meters; used by oculists [syn: {diopter},
           {dioptre}]

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