collimate

Definitions

  • WordNet 3.6
    • v collimate adjust the line of sight of (an optical instrument)
    • v collimate make or place parallel to something "They paralleled the ditch to the highway"
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Webster's Revised Unabridged Dictionary
    • v. t Collimate (Physics & Astron) 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.
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Century Dictionary and Cyclopedia
    • collimate To bring into the same line, as the axes of two lenses or the telescope of an optical instrument; also, to make parallel, as the rays of light passing through a lens.
    • collimate To render the line passing through the optical center of the object-glass of a telescope and the middle wire of its reticule strictly perpendicular (or sometimes parallel) to the axis on which the telescope turns: usually by the aid of a collimator, or of star-observations in reversed positions of the instrument.
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Etymology

Webster's Revised Unabridged Dictionary
See Collimation

Usage

In literature:

The collimator and observing telescope have an aperture of 25 mm., focus of 200 mm.
"Astronomical Instruments and Accessories" by Wm. Gaertner & Co.
Whenever the position is changed, the mirrors have to be re-collimated.
"Photographs of Nebulæ and Clusters" by James Edward Keeler
This lens was called the "Collimating" lens.
"The Progress of Invention in the Nineteenth Century." by Edward W. Byrn
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In news:

Flexible Collimation technology improves cardiovascular X-ray imaging.
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In science:

The high resolution of the new global VLBI image reveals structure which may be interpreted as collimated outflow and we speculate that this may represent a jet-like structure such as that generated by the model of Khokhlov et al. (1999).
Global VLBI Observations of Compact Radio Sources in M82
The idea that GRBs are due to collimated emissions is not recent.
Optical and X-ray Afterglows in the Cannonball Model of GRBs
The resulting quasi-thermal CB surface radiation, Doppler-shifted in energy and forward-collimated by the CB’s fast motion, gives rise to an individual pulse in a GRB .
Optical and X-ray Afterglows in the Cannonball Model of GRBs
As these CBs pierce the SN shell, not precisely on the same tiny spot, they heat and re-emit photons, which are Lorentz-boosted and collimated by the CBs’ relativistic motion.
Optical and X-ray Afterglows in the Cannonball Model of GRBs
In a spherical fireball, such a field configuration would give null polarization, but if a collimated fireball is observed off–axis (as it is most probable), a small degree of polarization is predicted, with a well defined time evolution.
Polarization of Gamma--Ray Burst Optical and Near-Infrared Afterglows
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