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The color of the stage lighting mainly comes from two ways

The color of the stage lighting mainly comes from two ways

Classification:
FAQ
Author:
Source:
Release time:
2019/04/03
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The color of the stage lighting is mainly derived from two ways: the light color of the electro-optic light source and the light color caused by the additional color filter of the electric light source (or the light fixture).
 
    First, the light color of the electric light source and its spectral analysis.
 
    In the stage lighting, all kinds of electric light sources are brightly colored, and their colors are unified to the corresponding color temperature or correlated color temperature. The black body radiation temperature is used to quantitatively and scientifically express the light color of the light source, and the physiological expression is digital. The amount of physical and mental vision is a big step forward.
 
    There are two main types of electric light sources for stage lighting: heat radiation sources and gas discharge sources. The types of heat radiation sources are: tungsten halogen lamps (halogen lamps), evaporated aluminum bubbles, incandescent lamps, etc., belonging to gas discharge lamps: xenon lamps, metal halide lamps, fluorescent lamps, and the like. They have different spectral radiation relative energy distributions, which usually show different light color effects after stimulating the human eye. However, there is also a phenomenon of "metachromatic", that is, light emitted by different spectra relative energy will also cause the same color vision, or the same light color may have different spectral relative energy distribution.
 
    The spectral relative energy distribution of a fluorescent lamp (3200K) and a tungsten halogen bubble ( 3200K ), and the relative energy distribution of a fluorescent lamp ( 5500K ) and daylight ( 5500K ). Interpreting these four lines can lead to the following insights:
 
    1. Different pupils have different spectral relative energy distributions, showing different light colors, respectively labeled with different color temperatures of 3200KT5500K.
 
    2. The phenomenon of metamerism exists objectively. Both sources have the same color temperature, but the spectral relative energy distributions of the two are not exactly the same.
 
    3. The ratio of blue and red light relative energy in the spectral distribution of color temperature 3200K light source is small, while the ratio of blue and red light relative energy in the spectral distribution of color temperature 5500K light source is greatly improved.
 
    4. The spectral relative energy distribution curve of tungsten halogen lamp and daylight is continuous and smooth transition, while the spectral relative energy distribution curve of fluorescent lamp has several peaks with several lines of intense radiation sandwiching between them. The characteristic line of the chemical element of the phosphor.