graticule


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graticule

Graduated transparent scale engraved or photographed, placed in the front focal plane of the eyepiece of an optical instrument for direct observation of the apparent image size or position in the field of view. Example: the focusing screen of a focimeter. Syn. reticule.
References in periodicals archive ?
Allowing for some amount of overrange above and below the graticule, these values correspond to about 9 bits of resolution.
Key to this emblematic program was Girolamo Ruscelli's device of 1566 symbolizing Felipe II, which showed Apollo in his chariot above a globe bound by the Ptolemaic graticule, with the legend Iam illustrabit omnia (Minguez 92-94).
In another example, imagine the bug hunter could stretch a rectangular graticule, or Viewfinder, over a region of the BEV to calculate summary statistics for that region.
1 mm were made using a microscope with an eyepiece graticule and from an enlarged photograph incorporating a scale bar.
Measurements were taken with a graticule eye piece on a [R]Leica Wild M3Z binocular microscope, calibrated with a 0.
Specific topics include text material and typography, the Earth's graticule and projections, multivariate mapping, continuity and change in the computer era, and putting it all together.
Bur while Egeria's account of her journey through the Holy Land may seem antithetical to the critical standards of modem geographical reportage, the idea of space as qualitatively homogeneous, stretched out evenly on a mathematically derived graticule, is an Enlightenment conceit, forged out of the exigencies of early modem commerce.
The length and width of these checks were measured using a transparent Plexiglas ruler and an optical magnifying glass containing a calibrated graticule, respectively.
Organisms were identified and counted under a stereoscopic microscope (up to 50x magnification) and an optical microscope with an eyepiece graticule calibrated against a micrometer scale (up to 2,000x), with the literature on Cladocera (Elmoor-Loureiro, 1997; Smirnov, 1996).
It combines the Ptolomaic graticule with a cosmology that includes wind cherubs, the world as limited and surrounded by oceans and constituted by the tri-partite continental mass of Eurasia/Africa, and unknown regions of land and ocean inhabited by fantastic beings.
By superimposition of the calibrated eyepiece graticule on the cytological smears, direct measurements of individual epithelial cells were made, under 100X objective.