Colorimetric light source device based on tricolor LED

Abstract

A colorimetric light source device based on a tricolor LED comprises a switching power supply (1), an LED light source controller (2), a lamp box (3), a lampwick (4), radiating fins (5), a reflective cup (6) and a glass plate (7), and is characterized in that 220V alternate current is converted into low-voltage direct current through the switching power supply (1) and output to the LED light source controller (2); the LED light source controller (2) controls and outputs three ways of independent and adjustable currents which access the lampwick (4); the lampwick (4) is accurately focused and bonded into the reflective cup (6); the reflective cup (6) is fixed at the bottom of the lamp box (3) through a bracket; the radiating fins (5) are mounted at the bottom of the reflective cup (6); a glass plate (7) is boned to the opening part of the reflective cup (6); and the lampwick (4) adopts a high-power tricolor LED. Compared with the traditional colorimetry experiment light source, the LED light source is environment-friendly and energy-saving, the utilization ratio of emergent light is improved by means of the reflective light, light with red, green and blue can be adjusted finely, and costs of the light source and the power supply are low; and accordingly, the light source has the advantages of long service life, high luminance and light efficiency, simple device and low price.

Description

technical field [0001] The invention relates to the field of optics, in particular to a chromatic light source device based on trichromatic LEDs. Background technique [0002] The traditional colorimetry experiment uses a bromine tungsten lamp as the light source, and calculates the transmittance of the filter by measuring the transmission spectrum to determine the color coordinates. The additive color mixing experiment is to divide the light into three paths, or use three bromine tungsten lamps, respectively pass through the filters of the three primary colors of red, green, and blue to form three paths of red, green, and blue light, and then pass through the aperture and imaging lens will get together. Because the short-wave power of the bromine tungsten lamp spectrum is low, the blue light is weak after passing through the blue filter, so that the adjustable range of the blue light is small when mixing colors. In addition, many optical components are required in the exp...

AI Technical Summary

Problems solved by technology

Due to the low short-wave power of bromine tungsten lamp spectrum, the blue light is weak after passing through the blue filter, so the adjustable range of blue light is small when mixing colors

In addition, many optical components are required in the experiment, and the experimental optical path is more complicated.

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