単色光

WordNet

very thin and insubstantial; "thin paper"; "light summer dresses"
make lighter or brighter; "This lamp lightens the room a bit" (同)illume, illumine, light_up, illuminate
a condition of spiritual awareness; divine illumination; "follow Gods light" (同)illumination
having abundant light or illumination; "they played as long as it was light"; "as long as the lighting was good" (同)lighting
(physics) electromagnetic radiation that can produce a visual sensation; "the light was filtered through a soft glass window" (同)visible_light, visible_radiation
any device serving as a source of illumination; "he stopped the car and turned off the lights" (同)light_source
the visual effect of illumination on objects or scenes as created in pictures; "he could paint the lightest light and the darkest dark" (同)lightness
a particular perspective or aspect of a situation; "although he saw it in a different light, he still did not understand"
a person regarded very fondly; "the light of my life"
a visual warning signal; "they saw the light of the beacon"; "there was a light at every corner"
an illuminated area; "he stepped into the light"
mental understanding as an enlightening experience; "he finally saw the light"; "can you shed light on this problem?"
public awareness; "it brought the scandal to light"
(used of color) having a relatively small amount of coloring agent; "light blue"; "light colors such as pastels"; "a light-colored powder" (同)light-colored
moving easily and quickly; nimble; "the dancer was light and graceful"; "a lightsome buoyant step"; "walked with a light tripping step" (同)lightsome, tripping
having relatively few calories; "diet cola"; "light (or lite) beer"; "lite (or light) mayonnaise"; "a low-cal diet" (同)lite, low-cal, calorie-free
less than the correct or legal or full amount often deliberately so; "a light pound"; "a scant cup of sugar"; "regularly gives short weight" (同)scant, short
(of sleep) easily disturbed; "in a light doze"; "a light sleeper"; "a restless wakeful night" (同)wakeful
(physics, chemistry) not having atomic weight greater than average; "light water is ordinary water"
(used of soil) loose and large-grained in consistency; "light soil"
characterized by or emitting light; "a room that is light when the shutters are open"; "the inside of the house was airy and light"
demanding little effort; not burdensome; "light housework"; "light exercise"
designed for ease of movement or to carry little weight; "light aircraft"; "a light truck"
easily assimilated in the alimentary canal; not rich or heavily seasoned; "a light diet"
having little importance; "losing his job was no light matter"
intended primarily as entertainment; not serious or profound; "light verse"; "a light comedy"
not great in degree or quantity or number; "a light sentence"; "a light accent"; "casualties were light"; "light snow was falling"; "light misty rain"; "light smoke from the chimney"
of comparatively little physical weight or density; "a light load"; "magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C"
of little intensity or power or force; "the light touch of her fingers"; "a light breeze"
of the military or industry; using (or being) relatively small or light arms or equipment; "light infantry"; "light cavalry"; "light industry"; "light weapons"
psychologically light; especially free from sadness or troubles; "a light heart"
of or relating to monochromatism
(of light or other electromagnetic radiation) having only one wavelength; "monochromatic light" (同)homochromatic
having or appearing to have only one color (同)monochrome, monochromic, monochromous
apparatus for supplying artificial light effects for the stage or a film
the craft of providing artificial light; "an interior decorator must understand lighting"
set afire or burning; "the lighted candles"; "a lighted cigarette"; "a lit firecracker" (同)lit
a person who is completely color-blind

PrepTutorEJDIC

〈U〉『光,光線』;明るさ / 〈U〉夜明け;日中;日光 / 〈C〉『明かり』(太陽・灯火など光を出すもの) / 〈U〉《時にa~》光輝(brightness),(目などの)輝き / 〈C〉(点火するための)火,火花 / 〈C〉明かり採り,採光窓 / 〈C〉《通例単数形で》(絵などの)明るい部分 / 〈U〉(…についての)知識,情報,理解《+『on』+『名』》 / 〈C〉(ものを見る)観点,見地;相 / 〈C〉この世に光を与える人;指導的な人物 / …‘に'『火をつける』《+『up』+『名』+『名』+『up』》 / …‘に'『明かりをつける』,‘を'照らす《+『up』+『名,』+『名』+『up』》 / 〈人〉‘を'明かりをつけて案内する / 〈表情など〉‘を'明るくする《+『up』+『名,』+『名』+『up』》 / 〈物が〉火がつく,点火する;明かりがつく《+『up』》 / 明るくなる,晴れ晴れする《+『up』》 / 『明るい』 / (色が)『薄い』
(重量が)『軽い』 / (いろいろな事について,その程座・量が)軽い,小さい / 『軽快な』 / 軽装の / 肩のこらない;気軽な / 手軽な,骨の折れなし / (食べ物が)消化のよい,もたれない / ふらふらする,目まいのする / アルコール分の少ない / (パンなどが)ふんわりした / (重量が)軽く / (程度が)軽く,容易に;軽装で
(車・馬などから)降りる《+『from』+『名』》(alight) / (木などに)〈鳥などが〉止まる《+『on』(『upon』)+『名』》 / (…に)〈打撃・運などが〉突然ふりかかる《+『on』(『upon』)+『名』》
(絵・写真が)単色の,単色で描いた
照明,点火 / 照明方法(装置)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/10/01 21:04:42」(JST)

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[Wiki en表示]

A photograph of a parrot rendered with a monochrome palette of a limited number of shades

Monochrome^[1] describes paintings, drawings, design, or photographs in one color or values of one color.^[2] A monochromatic object or image has colors in shades of limited colors or hues.^{[clarification needed]} Images using only shades of grey (with or without black and/or white) are called grayscale or black-and-white. However, scientifically speaking, monochromatic light refers to visible light of a narrow band of wavelengths (see spectral color).

The Eiffel Tower during the Exposition Universelle (1889) for which the tower was built

Application

Night vision devices typically produce a monochrome image, often in shades of green

For an image, the term monochrome is usually taken to mean the same as black and white or, more likely, grayscale, but may also be used to refer to other combinations containing only tones of a single color, such as green-and-white or green-and-black. It may also refer to sepia displaying tones from light tan to dark brown or cyanotype (“blueprint”) images, and early photographic methods such as daguerreotypes, ambrotypes, and tintypes, each of which may be used to produce a monochromatic image.

In computing, monochrome has two meanings:

it may mean having only one color which is either on or off (also known as a binary image),
allowing shades of that color.

A monochrome computer display is able to display only a single color, often green, amber, red or white, and often also shades of that color.

In film photography, monochrome is typically the use of black-and-white film. Originally, all photography was done in monochrome until the invention of color film plates in the early 20th century.

Monochrome anaglyph image stereogram rendered in red and cyan; 3D red cyan glasses are recommended to view this image correctly.

In digital photography, monochrome is the capture of only shades of black by the sensor, or by post-processing a color image to present only the perceived brightness by combining the values of multiple channels (usually red, blue, and green). The weighting of individual channels may be selected to achieve a desired artistic effect; if only the red channel is selected by the weighting then the effect will be similar to that of using a red filter on panchromatic film. If the red channel is eliminated and the green and blue combined then the effect will be similar to that of orthochromatic film or the use of a cyan filter on panchromatic film. The selection of weighting thus allows a wide range of artistic expression in the final monochromatic image.

For production of an anaglyph image the original color stereogram source may first be reduced to monochrome in order to simplify the rendering of the image. This is sometimes required in cases where a color image would render in a confusing manner given the colors and patterns present in the source image and the selection filters used (typically red and its complement, cyan).^[3]

In physics

In physics, monochromatic refers to electromagnetic radiation of a single frequency. In the physical sense, no source of electromagnetic radiation is purely monochromatic, since that would require a wave of infinite duration as a consequence of the Fourier transform's localization property (cf. spectral coherence). Even very controlled sources such as lasers operate in a range of frequencies (known as the spectral linewidth). In practice, filtered light, diffraction grating separated light and laser light are all routinely referred to as monochromatic. Often light sources can be compared and one be labeled as “more monochromatic” (in a similar usage as monodispersity). And a device which isolates light sources of a narrow bandwidth are called monochromators, even though the bandwidth is often explicitly specified, and thus a collection of frequencies is understood.

References

^ From the Ancient Greek: μονόχρωμος – monochromos “having one color”.
^ "monochrome", Merriam-Webster Online Dictionary, 2009, retrieved October 16, 2009
^ "Monochromatic". Dictionary.com Unabridged. Random House, Inc. Retrieved March 23, 2013.

UpToDate Contents

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1. 皮膚病変に対するレーザーおよびインテンスパルスライトの原理 principles of laser and intense pulsed light for cutaneous lesions
2. 免疫グロブリン軽鎖（AL）アミロイドーシスおよび軽鎖重鎖沈着症の病因 pathogenesis of immunoglobulin light chain al amyloidosis and light and heavy chain deposition diseases
3. 免疫グロブリン軽鎖（AL）アミロイドーシス（原発性アミロイドーシス）の臨床像、検査所見、および診断 clinical presentation laboratory manifestations and diagnosis of immunoglobulin light chain al amyloidosis primary amyloidosis
4. UVB療法（広帯域および狭帯域） uvb therapy broadband and narrowband
5. Targeted phototherapy

English Journal

Dual-color control of nucleotide polymerization sensed by a fluorescence actuator.

Reimão-Pinto MM1, Cordeiro A, Almeida C, Pinheiro AV, Moro A, Lima JC, Baptista PV.Author information 1CIGMH, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal. pmvb@fct.unl.pt.AbstractSpatial and temporal control of molecular mechanisms can be achieved using photolabile bonds that connect biomolecules to protective caging groups, which can be cleaved upon irradiation of a specific wavelength, releasing the biomolecule ready-to-use. Here we apply and improve a previously reported strategy to tightly control in vitro transcription reactions. The strategy involves two caging molecules that block both ATP and GTP nucleotides. Additionally, we designed a molecular beacon complementary to the synthesized mRNA to infer its presence through a light signal. Upon release of both nucleotides through a specific monochromatic light (390 and 325 nm) we attain a light signal indicative of a successful in vitro transcription reaction. Similarly, in the absence of irradiation, no intense fluorescence signal was obtained. We believe this strategy could further be applied to DNA synthesis or the development of logic gates.
Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology.Photochem Photobiol Sci.2014 Mar 7. [Epub ahead of print]
Spatial and temporal control of molecular mechanisms can be achieved using photolabile bonds that connect biomolecules to protective caging groups, which can be cleaved upon irradiation of a specific wavelength, releasing the biomolecule ready-to-use. Here we apply and improve a previously reported
PMID 24604475

The contribution of single and double cones to spectral sensitivity in budgerigars during changing light conditions.

Lind O1, Chavez J, Kelber A.Author information 1Department of Biology, Lund University, Sölvegatan 35, 223 62, Lund, Sweden, olle.lind@lucs.lu.se.AbstractBird colour vision is mediated by single cones, while double cones and rods mediate luminance vision in bright and dim light, respectively. In daylight conditions, birds use colour vision to discriminate large objects such as fruit and plumage patches, and luminance vision to detect fine spatial detail and motion. However, decreasing light intensity favours achromatic mechanisms and eventually, in dim light, luminance vision outperforms colour vision in all visual tasks. We have used behavioural tests in budgerigars (Melopsittacus undulatus) to investigate how single cones, double cones and rods contribute to spectral sensitivity for large (3.4°) static monochromatic stimuli at light intensities ranging from 0.08 to 63.5 cd/m(2). We found no influences of rods at any intensity level. Single cones dominate the spectral sensitivity function at intensities above 1.1 cd/m(2), as predicted by a receptor noise-limited colour discrimination model. Below 1.1 cd/m(2), spectral sensitivity is lower than expected at all wavelengths except 575 nm, which corresponds to double cone function. We suggest that luminance vision mediated by double cones restores visual sensitivity when single cone sensitivity quickly decreases at light intensities close to the absolute threshold of colour vision.
Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology.J Comp Physiol A Neuroethol Sens Neural Behav Physiol.2014 Mar;200(3):197-207. doi: 10.1007/s00359-013-0878-7. Epub 2013 Dec 24.
Bird colour vision is mediated by single cones, while double cones and rods mediate luminance vision in bright and dim light, respectively. In daylight conditions, birds use colour vision to discriminate large objects such as fruit and plumage patches, and luminance vision to detect fine spatial det
PMID 24366429

Strigolactone-regulated hypocotyl elongation is dependent on cryptochrome and phytochrome signaling pathways in Arabidopsis.

Jia KP1, Luo Q, He SB, Lu XD, Yang HQ.Author information 1Key Laboratory of Urban Agriculture (South) Ministry of Agriculture and School of Agricultural and Biological Sciences, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China.AbstractSeedling development including hypocotyl elongation is a critical phase in the plant life cycle. Light regulation of hypocotyl elongation is primarily mediated through the blue light photoreceptor cryptochrome and red/far-red light photoreceptor phytochrome signaling pathways, comprising regulators including COP1, HY5, and phytochrome-interacting factors (PIFs). The novel phytohormones, strigolactones, also participate in regulating hypocotyl growth. However, how strigolactone coordinates with light and photoreceptors in the regulation of hypocotyl elongation is largely unclear. Here, we demonstrate that strigolactone inhibition of hypocotyl elongation is dependent on cryptochrome and phytochrome signaling pathways. The photoreceptor mutants cry1 cry2, phyA, and phyB are hyposensitive to strigolactone analog GR24 under the respective monochromatic light conditions, while cop1 and pif1 pif3 pif4 pif5 (pifq) quadruple mutants are hypersensitive to GR24 in darkness. Genetic studies indicate that the enhanced responsiveness of cop1 to GR24 is dependent on HY5 and MAX2, while that of pifq is independent of HY5. Further studies demonstrate that GR24 constitutively up-regulates HY5 expression in the dark and light, whereas GR24-promoted HY5 protein accumulation is light- and cryptochrome and phytochrome photoreceptor-dependent. These results suggest that the light dependency of strigolactone regulation of hypocotyl elongation is likely mediated through MAX2-dependent promotion of HY5 expression, light-dependent accumulation of HY5, and PIF-regulated components.
Molecular plant.Mol Plant.2014 Mar;7(3):528-40. doi: 10.1093/mp/sst093. Epub 2013 Oct 14.
Seedling development including hypocotyl elongation is a critical phase in the plant life cycle. Light regulation of hypocotyl elongation is primarily mediated through the blue light photoreceptor cryptochrome and red/far-red light photoreceptor phytochrome signaling pathways, comprising regulators
PMID 24126495

Japanese Journal

A Comparison of Monochromatic and Mixed LED Light Color on Performance, Bone Mineral Density, Meat and Blood Properties, and Immunity of Broiler Chicks

Hassan Rakibul,Sultana Shabiha,Choe Ho S. [他]
Journal of poultry science 51(2), 195-201, 2014-04
NAID 40020045406

Night-break Effect of LED Light with Different Wavelengths on Shoot Elongation of <I>Chrysanthemum morifolium</I> Ramat 'Jimba' and 'Iwa no hakusen'

LIAO Yi,SUZUKI Kenta,YU Wenjin,ZHUANG Defeng,TAKAI Yasuhiro,OGASAWARA Rie,SHIMAZU Teruaki,FUKUI Hirokazu
Environmental Control in Biology 52(1), 51-55, 2014
… Although LED lamps are a new light source in agriculture, there have been few studies on chrysanthemums under LED light cultures. … One incandescent (INC) lamp and four monochromatic LED lamps, with peak emissions at 630 nm, 660 nm, 690 nm, 735 nm, and 660+735 nm, respectively, were used as night-break light sources in chrysanthemum cultivation. …
NAID 130003395219