Traditional Culture Encyclopedia - Photography and portraiture - What's the use of a sun lamp?
What's the use of a sun lamp?
A portable hand lamp battery lamp.
1. Large lamps used in shooting use parabolic mirrors to reflect light.
2. Electric lamps designed to emit radiation of various wavelengths from ultraviolet rays to infrared rays, especially for treating or artificially tanning skin.
3. A circle or group of gas lamp holders used for lighting in large rooms in the past.
4. It is a halogen cluster element lamp, including iodine tungsten lamp and long arc xenon lamp. Because of the high illumination, it is also called sun lamp. Here is an example.
Ultra-high pressure short arc xenon lamp is a short arc lamp that emits light in high pressure pure xenon.
Its main features are:
(1) high brightness;
(2) daylight color. The color temperature is close to 6000 k;
(3) Continuous spectrum in visible region;
(4) High color rendering (color rendering index greater than 95);
(5) Maintain light and color characteristics throughout the service life;
(6) High arc stability;
(7) Hot restart capability;
(8) The maximum light output can be achieved after starting;
(9) The arc spot is small and easy to focus;
★ The rated power of lamps is less than 450W, and almost all of them are used in the field of science and technology. For example:
(1) microscope;
(2) graphic scanning;
(3) color contrast;
(4) endoscope.
★ High-power lamps are mainly used for:
(1) commercial film screening;
(2) slide show;
(3) TV video screening;
(4) searchlights;
(5) spotlight;
(6) Simulate the sun lamp.
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