reticle

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reticle

(ret -ă-kăl) A grid or pattern of two or more fine wires set in the focal plane of a telescope eyepiece and used in determining the position and/or size of a celestial object.

reticle

[′red·ə·kəl]
(optics)
A series of intersecting fine lines, wires, or the like which are placed in the focus of the objective of an optical instrument to aid in measurement of angles or distances.

reticle

i. A diamond, pipper, circle, cross, or any other mark used to assist any form of optical aiming in air-to-air and air-to-ground armament work as well as in a paradrop. See pipper.
ii. In photogrammetry, a cross or system of lines in the image plane of a viewing apparatus used singly as a reference mark in a monocular instrument or in a pair to form a floating mark in a certain stereoscope.
References in periodicals archive ?
SFP reticles stay full-sized no matter where the scope's magnification sits.
Among my favorite range-finding reticles is the Burris Ballistic Plex.
Five types of reticles, 10 color palettes with polarity-Image Inversion, super contrast, and image detail enhancement are available.
If you use reticles this way, a rangefinder or shooting at a known-distance target line, really helps.
Two types of reticles are available, a 65 MoA ring with a 1 MoA dot and a 65 MoA ring with two 1 MoA dots.
The reticle for the M249 comes with NSN 5855-01-039-2853, but it can be used only with the AN/PVS-4 night sight, which also requires a mounting bracket, NSN 3040-01-233-0352, for the M249.
I like the quick choice of reticles, and they should cover most any handgunning situation from precise paper punching to fast action on steel.
They focus energy through a reticle onto an IR-sensing cell.
In many cases, stock reticles can be installed in either Ramsden-type or Huyghens-type eypieces.