Method for conversion of spectrum into chromaticity

A spectral conversion and chromaticity technology, applied in the spectrum field, can solve problems such as the inability to quickly identify spectral curves
CN102721471AActive Publication Date: 2012-10-10HEBEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HEBEI UNIV OF TECH
Publication Date
2012-10-10

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Abstract

The technical scheme of the invention relates to the field of spectrum, in particular to a method for conversion of spectrum into chromaticity, which comprises the steps of: collection and digital processing of a spectral image; preprocessing of the spectral image with a computer; identification of the horizontal ordinate, vertical ordinate and spectral curve in the spectral image via the computer, and extraction of spectral data from the spectral image; display of the spectral data on the computer, and drawing of a spectral curve according to the extracted data; approximation and interpolation of the spectral data; and calculation of the values of X, Y and Z via discrete summation according to the product of the spectral intensity and the tristimulus value, and display of the chromaticity (x and y) on the computer. By adopting the method, the defects of the prior art that the spectral curve cannot be identified rapidly, the spectral data cannot be rapidly extracted and automatically converted into the chromaticity can be overcome.
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Description

technical field

[0001] The technical solution of the present invention relates to the spectrum field, specifically a method for converting spectrum into chromaticity. Background technique

[0002] With the continuous development and improvement of semiconductor material growth and device technology level, especially the successful development of blue and green light-emitting tubes (LEDs) with sapphire as the substrate, the emergence of fluorescent materials of various colors, breakthroughs have been made in ultra-high brightness LEDs , people pay more and more attention to the chromaticity of materials and devices, so those skilled in the art began to study the chromaticity, and developed different colorimeters. CN1691749 discloses a digital camera capable of measuring chromaticity coordinates and correlated color temperature and its method; WO02 / 090909 discloses a system and method for identifying primary color chromaticity coordinates of red, green and blue light sources; ...

Claims

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