The act of collimating; the adjustment of the line of the sights, as the axial line of the telescope of an instrument, into its proper position relative to the other parts of the instrument.
The process of aligning the optics within a telescope. Most refractors are permanant collimated, but Newtonian reflectors generally require regular collimation for optimal performance.
The process by which a beam of energy or particles is aligned to form a parallel beam.
The state of alignment of the optics within a telescope. More often performed on Newtonian Reflectors than other designs.
The systematic aligning of optical elements in a telescope to emsure the brightest and sharpest views possible.
The process by which a divergent beam of radiation is converted to a parallel beam. A diode laser focused at more than ~115 cm (~45 inches) is said to be "collimated" for all practical purposes.
Geometrical limitation of the extent of the radiation beam in the z-direction.
This refers to how correctly the optics are pointing towards each other. If a telescope is out of collimation, you will not get as clear an image as you should. Refractors generally have fixed optics, so you don't have to collimate them. Reflectors and catadioptrics usually have screws that you turn to collimate. (This only takes a few minutes to do- it is dead easy).
The mechanical alignment of the optical elements in a binocular. Both right and left hand optical axis must have proper orientation and location within the binocular barrel and must be parallel to each other in a quality optical system. High quality mechanical construction will ensure that the lenses and prism blocks maintain their correct alignment and provide years of comfortable viewing without headaches or eyestrain.
Process used in nuclear imaging to determine the originating point of a convergent beam of electronic particles.
To bring into line; to make parallel; to adjust accurately the line of sight of (a telescope). An instrument with the cross hairs perfectly adjusted is said to be collimated.
the accurate adjustment of the line of sight of a telescope
The method, in radiology, of restricting and confining the x-ray beam to a given area and, in nuclear medicine, of restricting the detection of emitted radiations from a given area of interest
The bringing of the optical components of a telescope into correct alignment.
The ideal input beam is a cylinder of light. No beam of finite dimensions can be perfectly collimated; at best there is a diffraction limit. In practice the input beam is a cone that is determined by the source size or aperture used. The degree of collimation can affect the S/N and the resolution
Alignment of the optical axis in an optical system. In a binocular instrument, alignment of both axes and one with the other to avoid eye strain.
The proper alignment of mirrors or lenses in an optical system.
The proper alignment of the optical elements of a telescope.
The limiting of a beam of radiation to a form of required dimensions, by the use of diaphragms made of absorbing material.
The optical process whereby a virtual image is produced at or near infinity. The light rays received at the eye point are then parallel.
The process of aligning the optics of a reflector telescope.
The technique for forcing radiation, like gamma photons, into a beam.
Ability of the laser beam to not spread significantly (low divergence) with distance.
The process by which a divergent or convergent beam of radiation is converted into a beam with the minimum divergence possible the system (ideally a parallel bundle or rays). See also: Beam Divergence.
The process of shaping a therapeutic beam by using materials that are opaque to it. These materials are placed in front of part of the beam to define the shape of the beam.
Optical collimation is the process by which a lens converts a divergent beam into a parallel beam of light.