Light-emitting diodes (leds) and color

Some leds products, especially the beam of the flashlight on light-emitting diodes (leds) have different colors. What did not use a twist to make them look beautiful and different light color has a different application. The following is a brief introduction of the most common color and its practical use.

pigments have a perfect color features, but it would destroy the vision, to adapt to the dark light source must be put out after the need a certain amount of time to adapt.

the red light is usually used for night vision. Red light does not cause you pupil contraction and too much once when the red light goes out eyes don't have to adapt to the darkness. Red is usually used in monochrome print processing as a 'safe' colors because it will not damage are print film

yellow light with a red light and some of the advantages of densities. Another advantage is that when you read the yellow light reduce because of long time reading and cause eye fatigue of reflection and blinding light.

green light also can be used as a night vision, is especially suitable for green light at night when reading maps or charts. It is not so easy to be found night vision equipment, it is easy to the human eye, found that the brightness of the green light is lower than red light.

blue light can be used as a reading maps and often during the night is very popular with military personnel, because blue light levels to increase the contrast. And it can also be used as a theater performance, working light color of the background.

blue-green had similar advantages of green and blue night vision, but with the improvement of blue-green color features, some users like with blue green light for this reason.

infrared red is for use with night vision equipment. Otherwise the eyes are invisible infrared light.

uv light is often used as identification money is fake, some of the uv led lighting is very popular in nightclubs and parties, they are used to make the fluorescent material brighter light.

the color of light and its wavelength of light color whether can see is determined by its wavelength, the wavelength of light is based on nano unit also say billionths of a metre. Leds light are almost consistent with the meaning that it is almost all in one wavelength, a very pure color. The following is the color of light and its wavelength. Red 4600 nm -

in the infrared 1600nm - - Invisible light red 1300 nm -

low infrared 870nm - - 850 nm - invisible light 810nm - Almost invisible light,

near infrared light is 780 nm - When direct observation can see a very light 770 nm - dark cherry red When direct observation can see a 740 - nm - deep cherry red light Deep cherry red light is 700 nm -

the red ray 660 nm - dark red 645 nm - red 630 nm - bright red 620nm - 615 nm -

red orange orange light 610 nm - red orange light 605 nm - orange light Amber light

590 nm - yellow light 'Sodium' 585 nm - yellow 575 nm - yellow Lemon yellow/light green

570 nm - green 565 nm - pale green 555 nm - turquoise 550nm - 525 nm - emerald green Pure green

505 nm - turquoise Turquoise / 500 nm - turquoise 495 nm - weak cyan Sky blue

475 nm - blue 470 nm - azure blue 460海里, 450 nm - bright blue Pure blue

444 nm - violet 430 nm - dark blue Violet

405 nm - purple 400 nm - pure purple Deep purple

nearly 395 nm - ultraviolet light With a reddish purple

UV - Type A uv 370 nm - light Is almost not visible light, the wooden glass filter showed a dark purple.

the white light leds have a yellowish white to pinkish purple. White light-emitting diodes (oleds) color temperature range with low ° to 4000 ° K to 12000 K. Common white light leds are typically 6500 ° - 8000 ° K range.

editor: China lighting network/leaves