grating

(redirected from gratingly)
Also found in: Dictionary, Thesaurus, Encyclopedia.

grating

(grāt′ing)
In spectrophotometry, the element used in a monochromator that disperses white light into the visible spectrum. It is composed of finely etched lines in the reflecting material.

grating

A series of black and white parallel bars of equal width used to measure visual acuity, contrast sensitivity, and resolution of optical systems. The grating can be either square-wave (also called Foucault grating or Foucault pattern), in which the luminance across a bar is constant, or sine-wave, in which the luminance varies sinusoidally (Fig. G6). See cycle per degree; contrast sensitivity function.
Fig. G6 Square-wave gratingenlarge picture
Fig. G6 Square-wave grating
References in periodicals archive ?
A protege of Andrei Tarkovsky-who got the thoroughly out-of-favor young director his first job, at Lenfilm Studio-Sokurov was both maximalist in technique and gratingly avant-garde, from his earliest feature film, The Lonely Voice of Man (1978/87), through the 1988 Days of Eclipse.
A scene in which Ms Bullock, as Miss New Jersey, gives a lesson in self- defence dressed in a kind of short, frilly national costume comes gratingly to mind.
Q.'s selfconscious posturing is particularly evident in the gratingly repetitious arpeggios of the First Suite's "Preludiamble," and the ludicrously wide intervals of the "Preludio Molto Importanto" that opens the Second Suite.
Of course he's got a lot to run from - Pennant-Rea is just ghastly (by which I mean superb) as the gratingly girly, high-maintenance Sibyl, who Elyot has chosen as an antidote to the type of passion which tore him and his first wife apart.
And, most gratingly, Bush reprised his 2003 role: flinty-eyed, elbows on podium, warning of AI Qaeda evildoers on the one hand and genocide on the other.
And his pro-abortion zeal was gratingly expressed: as one senator observed, "There is no more dangerous place than between Senator Schumer and a TV camera." Yes, we are talking about the very same Senator Chuck Schumer who now proudly basks in the glory of having organized the Democratic takeover of the Senate in the 2006 election.
Many works, such as Rural Peasant, Yanan, Shaanxi Province, 2000, display a mordant humor stripped of irony, as its conspicuous subject steadily meets our gaze with a full, toothy grin; others, like Two Homeless Boys, Beijing, 1998, smack gratingly of rhetoric while still conveying an unembarrassed sympathy.
WHILE STIGLITZ DOES HAVE A REMARKABLY realistic understanding for a liberal of many aspects of how the world economy works, he gratingly makes two blunders over and over.
To reiterate, I am not familiar with any other linguistic system in which, as in English and French, the way you pronounce a word is always likely to contradict the way you write it, and gratingly. French, a daughter of Latin, is the only other linguistic human tool I am familiar with which is beleaguered by the same grating clash between spelling and pronunciation.
With all the spontaneity of Kabuki theater, and a level of self-congratulation unmatched by Disney/Cap Cities annual reports, Wall Street Week follows a rigidly ritualized format, presided over by its harlequin-faced and gratingly smug host, Louis Rukeyser.
I do hope you won't mind my saying this, says Keith gratingly, but my wife and I have come down here "to get away from the hurly-burly of town life, the hustle and bustle of living in an urban conurbation." Ray says sarcastically, Good for you; he'll suit himself, he paid for his campsite same as they.
Warm and engaging when it focuses on Hunt as an uptight New Yorker learning to mellow out on the beaches of Los Angeles, the film turns gratingly forced whenever her naive, angsty son steps into the frame, occasioning so much self-involved mother-son bickering you long for a tidal wave to come along and sweep them both out to sea.