释义 |
brightness
bright·ness B0483000 (brīt′nĭs)n.1. The state or quality of being bright.2. The effect or sensation by means of which an observer is able to distinguish differences in luminance.3. The dimension of a color that represents its similarity to one of a series of achromatic colors ranging from very dim (dark) to very bright (dazzling).brightness (ˈbraɪtnɪs) n1. the condition of being bright2. (General Physics) physics a former name for luminosity43. (Psychology) psychol the experienced intensity of lightbright•ness (ˈbraɪt nɪs) n. 1. the quality of being bright. 2. the luminance of a body that an observer uses to determine the comparative luminance of another body. [before 950] Brightness See Also: GLITTER AND GLOSS, LIGHTING, SHINING - Blazing like the windows of the city —James Dickey
- (He possessed a brainful of information,) bright and beautiful as diamonds swaddled in midnight-blue velvet —W. P. Kinsella
- Bright and light as the crest of a peacock —Alfred, Lord Tennyson
- Bright and pleasing as a child’s rattle —Virginia Woolf
- Bright as a beach in the moonlight —Alfred Austin
- (An image came to me across the years,) bright as a coin from the mint —Norman Mailer
- Bright as a frog’s eyes —Hart Crane
- Bright as all between cloudless skies and windless streams —Percy Bysshe Shelley
- Bright as a nettle rash —Diane Ackerman
- (Laugh … ) bright as a new ensign’s buttons —Frederic Wakeman
- Bright as a newly painted toy —Hugh Walpole
- Bright as an icon —Margaret Atwood
- Bright as any glass —Geoffrey Chaucer
- Bright as any meteor ever bred by the North Pole —Lord Byron
- Bright as a parakeet —Dame Edith Sitwell
- (Every day) bright as a postcard —Karl Shapiro
- Bright as a roomful of chrystal chandeliers —Anon
- Bright as a splinter from a glazier’s table —Beryl Markham
- (A face) bright as a waterdrop —Padraic Fallon
- Bright as day —Geoffrey Chaucer
- Bright as foil —Molly Giles
- Bright as freedom —Marge Piercy
- Bright as joy —Hartley Coleridge
- Bright as light —Alfred, Lord Tennyson
- Bright as moonlight over snow —Wallace Stegner
- Bright as Spring —Walter Savage Landor
- (Eyes as) bright as the Dipper —Stephen Vincent Benét
- Bright as the fullest moon in blackest air —Arabian Nights
- Bright as the promises of a new administration —Elyse Sommer
- Bright as the promise of life on commencement day —Elyse Sommer
- Bright as the promise of a cloudless day —C. P. Wilson
- Bright as the raindrops and roses in June —Dame Edith Sitwell
- Bright as the world was in its infant years —John Banks
- Bright as truth —Barry Cornwall
- Bright like a brimming bowl of jewels —Peter De Vries
- Bright, like a flash of sunlight —Edward Bulwer-Lytton
- Bright (eyes) like agate —D. H. Lawrence
- Bright like blood —Algernon Charles Swinburne
- Brightness … bright as dipper —Stephen Vincent Benet
- Brilliant as a postage stamp —Lawrence Durrell
- (Eyes) brilliant as fire —Nadine Gordimer
- [Oranges and grapefruits] brilliant as planets —Cynthia Ozick
- Brilliant as the stars —Ouida
- Brilliant as the sun —Slogan, Lustberg-Nast, Lustray shirts
- Brilliant like a Chinese porcelain —W. Somerset Maugham
- Brilliantly, gaudily colored as a Gypsy camp —Kate Simon
- Dazzled the eyes like a second noonday sun —Edna Ferber
- Growing brighter and brighter like a forest after a rain —Denis Johnson
- Lights up like a Star Wars pinball machine —Marge Piercy
- [Face] light up like a bonfire of joy —Carl Sandburg
- Vivid as sun through a thin brown bottle —Reynolds Price
- Vivid as the granules of paint in a Dubuffet —John Updike
ThesaurusNoun | 1. | brightness - the location of a visual perception along a continuum from black to whitelightness, light - the visual effect of illumination on objects or scenes as created in pictures; "he could paint the lightest light and the darkest dark"brilliance, glare, blaze - a light within the field of vision that is brighter than the brightness to which the eyes are adapted; "a glare of sunlight"dazzle - brightness enough to blind partially and temporarilyglisten, glister, glitter, sparkle, scintillation - the quality of shining with a bright reflected lightflash - a momentary brightnessglint - a spatially localized brightnessiridescence, opalescence - the visual property of something having a milky brightness and a play of colors from the surfaceradiancy, refulgence, refulgency, shine, effulgence, radiance - the quality of being bright and sending out rays of lightbrilliancy, luster, splendor, splendour, lustre - a quality that outshines the usualdullness - a lack of visual brightness; "the brightness of the orange sky was reflected in the dullness of the orange sea" | | 2. | brightness - intelligence as manifested in being quick and wittycleverness, smartnessintelligence - the ability to comprehend; to understand and profit from experience | | 3. | brightness - the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"brightness level, luminance, luminosity, luminousness, lightphysical property - any property used to characterize matter and energy and their interactionsilluminance, illumination - the luminous flux incident on a unit areaincandescence - light from heatglow, luminescence - light from nonthermal sources |
brightnessnoun1. vividness, richness, intensity, brilliance, splendour, resplendence You'll be impressed with the brightness of the colors.2. light, shine, sparkle, glare, brilliance, radiance, luminosity, incandescence, effulgence, refulgence An astronomer can determine the brightness of each star. light dullness, dimness3. intelligence, intellect, brains (informal), awareness, sharpness, alertness, cleverness, quickness, acuity, brain power, smarts (slang, chiefly U.S.), smartness Her brightness seemed quite intimidating to me.Translationsbright (brait) adjective1. shining with much light. bright sunshine. 光亮的 光亮的2. (of a colour) strong and bold. a bright red car. 鮮明的 鲜明的3. cheerful. a bright smile. 充滿喜悅的,燦爛的 欢快的,愉快的 4. clever. bright children. 聰明的 聪明的ˈbrightly adverb 明亮地 明亮地ˈbrightness noun 明亮,聰明 鲜明,明亮,智慧,聪明 ˈbrighten verb (often with up) to make or become bright or brighter. The new wallpaper brightens up the room. 使明亮 使明亮brightness
brightness The intensity of light or other radiation emitted from – absolute or intrinsic brightness – or received from – apparent brightness – a celestial body, the latter decreasing as the distance from the body increases. Intrinsic brightness is directly related to the luminosity of a body in a given spectral region. Apparent brightness is considered in terms of apparent magnitude: a star one magnitude less than another is about 2.5 times brighter. If two stars belong to the main sequence then the brighter star is the hotter of the two. See also radio brightness.BrightnessThe amount of light energy reflected from a surface. The degree of brightness depends on the color value and texture on its surface. The surface brightness of a task should be the same as its background or brighter. The maximum brightness ratio should be 3:1, and the brightness between the task and the darkest background area should be 5:1 to avoid objectionable glare.Brightness (also surface brightness), in astronomy, a characteristic of the emittance or reflectance of the surface of a celestial body. The brightness of faint celestial sources is expressed in terms of the number of stars of a given stellar magnitude in an area measuring 1 square second of arc (arcsec2), 1 square minute of arc (arcmin2), or 1 square degree (deg2). In other words, the illuminance from such an area is compared with the illuminance produced by a star of known stellar magnitude. The brightness of the moonless night sky in clear weather, which is equal to 2 × 10–8 stilbs (sb), is characterized by one star of stellar magnitude 22.4 per arcsec2, or one star of stellar magnitude 4.61 per deg2. The brightness of an average nebula is equal to one star of stellar magnitude 19–20 per arcsec2. The brightness of Venus is equal to about one star of stellar magnitude 3 per arcsec2. The brightness of an area of 1 arcsec2 over which the light of a zero-magnitude star is distributed is equal to 9.25 sb. The brightness of the center of the solar disk is equal to 150,000 sb; that of the full moon, to 0.25 sb. A surface for which the brightness does not depend on the angle of inclination of the area to the line of sight is said to be orthotropic. The flux emitted by such a surface behaves in accordance with Lambert’s law and is called the luminance. The unit of luminance is the lambert, which corresponds to a total flux of 1 lumen/cm2. D. IA. MARTYNOV brightness[′brīt·nəs] (optics) The characteristic of light that gives a visual sensation of more or less light. luminance brightnessThat attribute of visual perception in accordance with which a surface appears to emit more light or less light. Now called luminance.BrightnessAlpha Centauribrightest star in Centaurus constellation; closest star to Earth. [Astronomy: NCE, 74]diamondApril birthstone, most reflective of gems. [Gem Symbolism: Jobes, 440–441]North Starbright star visible to naked eye and nearest to the north celestial pole. [Astronomy: EB, VIII: 79]Siriusdog star; brightest star in the heavens. [Astronomy: EB, IX: 238]St. Elmo’s fireglow of electrical discharge appearing on towers and ships’ masts. [Physics: EB, VIII: 780]Venusbright planet, second from the Sun. [Astronomy: EB, X: 392]brightness (graphics)(Or "tone", "luminance", "value", "luminosity","lightness") The coordinate in the HSB colour model thatdetermines the total amount of light in the colour. Zerobrightness is black and 100% is white, intermediate values are"light" or "dark" colours.
The other coordinates are hue and saturation.brightnessThe black level of a display screen. Although it may sound peculiar, the brightness adjusts the "black level" of the display system (how black the black is). See contrast.brightness
brightness (1) The luminous intensity of a light source, defined as candles/cm2. (2) The intensity of reflection of light, measured in lamberts (one lambert equals 1 lumen/cm2).brightness (brīt′nĕs) 1. The perceived brilliance of an image, e.g., its clarity, how light it is (rather than how dark it looks), and the intensity of the light that it emits. 2. In imaging technology, e.g., radiology, the luminous intensity, measured in candelas, of a display monitor's visible emissions. Such brightness is solely a function of the monitor and is not related to the magnitude of exposure of the image receptor. brightness Attribute of visual sensation according to which an area appears to emit more or less light. Syn. luminosity. Note 1: In British recommended practice, the term brightness is now reserved to describe brightness of colour (i.e. the opposite of dullness) as used in the dyeing industry. Note 2: This attribute is the psychosensorial correlate, or nearly so, of the photometric quantity luminance (CIE). Brightness Acuity Tester (BAT) See glare tester. brightness constancy See brightness constancy. brightness enhancement See Brücke-Bartley effect.AcronymsSeeBRTbrightness Related to brightness: brightness control, Brightness temperatureSynonyms for brightnessnoun vividnessSynonyms- vividness
- richness
- intensity
- brilliance
- splendour
- resplendence
noun lightSynonyms- light
- shine
- sparkle
- glare
- brilliance
- radiance
- luminosity
- incandescence
- effulgence
- refulgence
Antonymsnoun intelligenceSynonyms- intelligence
- intellect
- brains
- awareness
- sharpness
- alertness
- cleverness
- quickness
- acuity
- brain power
- smarts
- smartness
Synonyms for brightnessnoun the location of a visual perception along a continuum from black to whiteRelated Words- lightness
- light
- brilliance
- glare
- blaze
- dazzle
- glisten
- glister
- glitter
- sparkle
- scintillation
- flash
- glint
- iridescence
- opalescence
- radiancy
- refulgence
- refulgency
- shine
- effulgence
- radiance
- brilliancy
- luster
- splendor
- splendour
- lustre
Antonymsnoun intelligence as manifested in being quick and wittySynonymsRelated Wordsnoun the quality of being luminousSynonyms- brightness level
- luminance
- luminosity
- luminousness
- light
Related Words- physical property
- illuminance
- illumination
- incandescence
- glow
- luminescence
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