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collimate    
vt. 照准,瞄准,使成平行

照准,瞄准,使成平行

collimate
v 1: make or place parallel to something; "They paralleled the
ditch to the highway" [synonym: {parallel}, {collimate}]
2: adjust the line of sight of (an optical instrument)


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  • How can a lens collimate an image instead of just a point of light?
    A lens cannot collimate an image It can take the light from each point of the image into a collimated beam in a different direction Your eye can take a collimated beam and focus it to a point on your retina It can take beams in different directions and focus each to a different point, thus reconstructing the image Edit - A ray diagram will
  • What is the best way to collimate light emitted by a LED?
    9 One cannot collimate light from an LED accurately without loosing a great deal of light and or being happy with a very wide collimated beam, because the source is often quite a wide extended source (sometimes up to 1mm across)
  • Why cant incoherent light be collimated as well as laser light (e. g . . .
    While you can collimate an LED, the fact remains that the because the LED has a much (much) larger angular spread than a laser, you just can't collimate it nearly as well So, perhaps you can get an LED down to a few degrees, but the laser will be in tenths of a degree That means the laser can go across a (big) room and still make a small dot on the screen
  • What type of lens is used to collimate light? - Physics Stack Exchange
    I am interested in collimating infrared LEDs, but I don't know what type of lens to use (eg, concave or convex) Can someone tell me what type of lens to use? I am trying to collimate a regular IR
  • Why does a laser beam stay collimated? - Physics Stack Exchange
    I am looking for a simple way of explaining the collimation of a laser beam The typical discussion of the two slit experiment of quantum theory relies heavily on the Huygens principle Its applica
  • Can the neutrons in a nuclear reactor be collimated?
    Yes, it is possible to collimate reactor neutrons and this is very common in research reactors See "beam tubes", "guide neutrons", "hot and cold sources" It is even possible to sort them in velocity to obtain mono-energetic neutrons
  • Is it possible to collimate a point source of concentrated light?
    The picture is misleading because it is not to scale (obviously), but the relationships still apply in any imaging situation You can collimate the light from the image of the sun - but because the image that you made has a finite extent, the collimated beam formed will have some angular spread - it will not be "perfectly" collimated
  • Is there any incoherent collimated monocromatic light source?
    I was looking for an incoherent monochromatic collimated light source I know that if I shine a laser through some medium I'll partially lose the coherence but I will also sacrifice the collimation
  • Why do we need collimated light on a diffraction grating?
    If the beam wasn't collimated then light with different wavelengths but from different parts of the source, arriving at different incidence angles, would be diffracted in the same direction This would spoil your wavelength discrimination, contradicting the whole purpose of a diffraction grating
  • Why laser is a collimated parallel beam? - Physics Stack Exchange
    of collimated: collimated; collimating transitive verb : to make parallel collimate light rays so the answer is single and one: They have the same direction The rest describe a laser beam, but not the meaning of "collimated" can be fixed or random but not collimated





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