Tungsten filament bulb, incandescent lamps made of tungsten filaments as filament.The tungsten filament bulb produces a continuous spectrum for 400-780nm visible spectrum area.As a visible light source in the spectrophotometer.The effective area of ??its spectrum can be extended to 3 μm, so it is also used as a light source in the infrared area.
Tungsten wire bubble color temperature
According to this principle, the color temperature of any light is equivalent to the "temperature" that the black body is exuding the same color.Color is actually a psychological and physical effect. The emergence of all color impressions is due to the reaction of the intermittent spectrum on the eyes, so the color temperature is only used to represent the visual impression of color.(The preference in color temperature is dependent on person, which is related to the scenery of the scenery we see in the daily life. For example, in the equator, the average color temperature you see daily is 11000K (8000K (dusk) ~ 17000K (noon)), So prefer high -color temperature (look more real). On the contrary, people with high latitudes (average color temperature of about 6000K) prefer low -color temperature (5600K or 6500K), that is, if you use a high highThe color temperature TV shows the landscape of the Arctic, and it seems to be blue; on the contrary, if you use a low -color temperature TV to watch the subtropical style, you will feel a bit red.)
Tungsten filament bulb price
As far as the traditional light bulb type such as tungsten filament lamp is concerned, its price is not high, and the ordinary price can be taken down in a few or ten dollars.Of course, in recent years, our living conditions are good. The incandescent photography lights that meet the needs of photography enthusiasts have also appeared. The price is higher than the traditional tungsten wire lamp.Some improvements were carried out.In general, the price of tungsten filament lamps is not too high. As far as emerging fluorescent lamps or LEDs are concerned, they are comparable to energy -saving and service life, and they are on the road of elimination.In the future, there will be fewer and fewer use, except in some special areas.
Tungsten wire bulb life
The service life of tungsten filament bulb is actually very simple, that is, adjusting the length of the filament.In order to increase the service life of the bulb, people usually extend their life by increasing the length of tungsten wire.This allows the heat energy to distribute within longer spaces, reduce the temperature of the tungsten filament light, and slow down the tungsten wire sublimation process and delay the break.However, under such treatment, the brightness of the tungsten lamp will weaken, and the light will become darker. If you want to achieve the desired effect, you must use a higher power bulb with a higher power bulb.Generally, the use of tungsten filament lamps is generally 1,000-1500 hours, and some better tungsten wire bulbs can reach about 2,000 hours.However, the cheap price of tungsten filament lamp will not be difficult to replace the use.
Who invented tungsten filament bulb
Edison

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