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GB/T 26180-2010: Method of measuring and specifying colour rendering of light sources
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 26180-2010 | English | 354 |
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Method of measuring and specifying colour rendering of light sources
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GB/T 26180-2010
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Basic data | Standard ID | GB/T 26180-2010 (GB/T26180-2010) | | Description (Translated English) | Method of measuring and specifying colour rendering of light sources | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K70 | | Classification of International Standard | 17.180.20 | | Word Count Estimation | 18,119 | | Date of Issue | 2011-01-14 | | Date of Implementation | 2011-06-15 | | Quoted Standard | CIE 1931; CIE 1974 | | Adopted Standard | CIE 13.3-1995, IDT | | Regulation (derived from) | National Standard Approval Announcement 2011 No.2 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the total color measurement and representation of the object based on the offset of the color of the light source. Referred to as " color test methods. " This standard should be used as the basic method of evaluation of the color of the light source significantly. And recommended for type testing and testing separate lights. Definitions appear in the International Lighting Vocabulary for but not used in this standard. See Chapter 3. | GB/T 26180-2010: Method of measuring and specifying colour rendering of light sources---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Method of measuring and specifying colour rendering of light sources
ICS 17.180.20
K70
National Standards of People's Republic of China
Represent significant sources and methods of measurement of color
(CIE13.3-1995, IDT)
Issued on. 2011-01-14
2011-06-15 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
Introduction Ⅳ
Objective 1
2 Range 1
3 Terms and definitions
4 Stars 1
5 2 evaluation procedures
Color rendering index calculation 6 4
7 Explanatory Comments 4
8 Table 6
Reference 12
Foreword
This standard is equivalent to using CIE13.3-1995 "light color representation and measurement methods" (in English).
This standard is equivalent translation CIE13.3-1995.
For ease of use, this standard made the following editorial changes.
The term a) "The technical report" to the "standard";
b) use a decimal point instead of a decimal point ",". ",";
c) Remove CIE13.3-1995 preface;
d) Remove CIE13.3-1995 of Chapters 1 and Appendix B, will CIE13.3-1995 of Chapters 2 and 3 were changed to 1
And Chapter 2, will CIE13.3-1995 Appendix A to Chapter 3.
The standard proposed by China National Light Industry Council.
This standard by the National Standardization Technical Committee of electrical lighting (SAC/TC224) centralized.
This standard was drafted. National Electric Light Source Quality Supervision and Inspection Center (Beijing), Hangzhou distance Photoelectric Information Co., Ltd., China recognized quality
Accreditation Centre.
The main drafters of this standard. Hua Shuming, PAN Jian roots, Chen Song.
This standard was first published.
Introduction
This standard established measurement and representation of the overall color of the object based on the color shift of the light source, (referred to as "color test method").
This is the basic method for color light source was evaluated and recommended for type testing and independent testing of the lamp.
In order to apply the recommended color test method, you must calculate the total color appropriate test color samples selected offset. By spectral radiation
Factor to determine a set of eight color samples used to calculate the general color rendering index. These samples cover a hue circle, moderate saturation, brightness
Nearly identical. Data represent six traditional colors of the test sample magenta, yellow, green, and blue color and plant color. According to the color shift can be remarkably
Color index.
Represent significant sources and methods of measurement of color
1. Purpose
This standard established measurement and representation of the overall color of the object based on the shift light color of the "Color Test Method."
This standard should be used as the basic method of evaluation of the light source color of the display, and is recommended for type testing and independent testing of the lamp.
For defined but not used in this standard appears in the International Lighting Vocabulary, see Chapter 3.
2 range
This standard applies to most general lighting illumination (such as tungsten, fluorescent tubes and compact fluorescent lamps, and other types of
Gas discharge lamps, excluding predominantly monochromatic source, such as a low pressure sodium lamp). The method may also be applied to the corrected daylight.
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Color colourrenderingproperties
Under certain conditions, the light source of the color table to its object under illumination compared to a reference color table effects.
3.2
1994 uniform color space 1994uniformspace
Produced in three orthogonal axes U *, V *, W * a space formed nearly identical color space, U *, V *, W * by the formula (3-1) Definition.
W * = 25Y1/3-17
U * = 13W * (u-u0) (3-1)
V * = 13W * (v-v0)
1≤Y≤100
u, v is 1960UCS color coordinates (see Fig. 1960UCS), u0, v0 is selected variables achromatic color values.
Note 1. For object color, illumination color coordinates u0, v0 choice can be satisfied.
Note 2. In this system, the color (U * 1, V * 1, W * 1) and color (U * 2, V * 2, W * 2) The size of the difference ΔE of perception.
ΔE = [(U * 1 -U * 2) 2 (V * 1 -V * 2) 2 (W * 1 -W * 2) 2] 1/2
3.3
1960UCS FIG 1960UCSdiagram
Produced in the rectangular coordinate system u, v, a nearly uniform chromaticity diagram, u, v is defined by the formula (3-2).
u = 4x/(- 2x 12y 3) = 4X/(X 15Y 3Z) (3-2)
v = 6y/(- 2x 12y 3) = 6Y/(X 15Y 3Z)
3.4
Katherine Kelvin reciprocal (MK-1) reciprocalmegakelvin (MK-1)
The term used to describe the correlated color temperature differences. Is 106K-1 (instead of the obsolete term "Mired". micro reciprocal degrees).
Note. The difference between equal along the Planckian locus corresponds substantially equal to the reciprocal of Katherine Kelvin.
4 Stars
Evaluation should include general color rendering index, and may be composed of a series of special color rendering index as a supplement.
Export special color rendering index should be based on a comparison of the color difference vector length uniform color space and 1964, and should be in accordance with Chapters 5 and 6
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