English-Thai Dictionary
collimate
VT ทำให้ ขนาน กัน parallel tam-hai-ka-nan-kan
Webster's 1913 Dictionary
COLLIMATE
Col "li *mate, v. t. [imp. & p. p. Collimated; p. p. & vb. n.Collimating.] Etym: [See Collimation. ] (Physics & Astron.)
Defn: To render parallel to a certain line or direction; to bring into the same line, as the axes of telescopes, etc. ; to render parallel, as rays of light.
Collimating eyepiece, an eyepiece with a diagonal reflector for illumination, used to determine the error of collimation in a transit instrument by observing the image of a cross wire reflected from mercury, and comparing its position in the field with that of the same wire seen directly. -- Collimating lens (Optics ), a lens used for producing parallel rays of light.
New American Oxford Dictionary
collimate
col li mate |ˈkäləˌmāt ˈkɑləmeɪt | ▶verb [ with obj. ] make (rays of light or particles ) accurately parallel: (as adj. collimated ) : a collimated electron beam. • accurately align (an optical or other system ). DERIVATIVES col li ma tion |ˌkäləˈmāSHən |noun ORIGIN mid 19th cent.: from Latin collimare, an erroneous reading (in some editions of Cicero ) of collineare ‘align or aim, ’ from col- ‘together with ’ + linea ‘line. ’
Oxford Dictionary
collimate
collimate |ˈkɒlɪmeɪt | ▶verb [ with obj. ] make (rays of light or particles ) accurately parallel: (as adj. collimated ) : a collimated electron beam. • accurately set the alignment of (an optical or other system ). DERIVATIVES collimation |-ˈmeɪʃ (ə )n |noun ORIGIN mid 19th cent.: from Latin collimare, an erroneous reading (in some editions of Cicero ) of collineare ‘align or aim ’, from col- ‘together with ’ + linea ‘line ’.
French Dictionary
collimateur
collimateur n. m. nom masculin 1 Instrument d ’optique envoyant des rayons lumineux dans une direction donnée. 2 Dispositif de visée pour le tir. LOCUTION Avoir, garder, prendre quelqu ’un dans le collimateur. figuré Mettre quelqu ’un sous surveillance, se préparer à diriger son tir vers lui, à l ’attaquer.
The Wordsmith Dictionary