CN106015956A

CN106015956A - LED according with coordinates of colored glass for railway signal lights

Info

Publication number: CN106015956A
Application number: CN201610373530.XA
Authority: CN
Inventors: 任小波
Original assignee: Sichuan Mingheng Science & Technology Co Ltd
Current assignee: Sichuan Mingheng Science & Technology Co Ltd
Priority date: 2016-05-31
Filing date: 2016-05-31
Publication date: 2016-10-12

Abstract

The invention provides an LED according with coordinates of colored glass for railway signal lights in order to achieve the purpose that light of only one white-light LED signal light product is used for passing through different pieces of colored glass while requirements, as stated in the railway standard TB/T2081-1989 Railway Light Signal Colors, for coordinates of different colors are still met. The range of the coordinates of light emitting colors of the selected LED meets the facts that the center coordinates x and y are equal to 0.4338 and 0.4030 correspondingly, the long axis a is equal to 0.00834, the short axis b is equal to 0.00408, the rotation angle is within a 53.2-degree oval zone, and the color rendering is not lower than 90.

Description

A kind of LED meeting railway signal light color glass coordinate

Technical field

The present invention relates to LED technology field, it is provided that a kind of LED meeting railway signal light color glass coordinate.

Background technology

The railway system use signal lights mechanism, be the colored lights system of a kind of similar stop-light, its have red, green, Blue, white and yellow 5 clock instruction colors.Signal lights mechanism is a light fixture being mounted with different colours glass, pacifies in this light fixture After the incandescent lamp bulb that the Zhuan Liao railway system is special, after the filtration of different glass, different colors can be shown.At ferrum mark TB/T In 2081-1989 " Railway light signals color ", the luminescence coordinate of these colors is made concrete regulation.

But new-type use LED is as the signal lights of light source, because the spectral region of LED is narrower, it is more difficult to reach similar white heat Lamp uses single white light i.e. to meet the coordinate requirement of different colours, the producer few in number that therefore market occurs at present like that The LED signal lamp of design is generally individually selected the LED of 5 kinds of colors to design 5 sections of signal lamp product and is tackled.But thus give reality Use and cause certain inconvenience, when the most more changing the bulb, need the product of 5 kinds of colors to carry simultaneously.

Summary of the invention

The technical problem to be solved is how to realize only passing through the most homochromy by a white light LEDs signal lamp product The requirement to different colours coordinate in ferrum mark TB/T2081-1989 " Railway light signals color " still can be met after glass.

The technical solution used in the present invention is as follows for achieving the above object:

A kind of 1931-CIE color that glow color coordinate range is standard of the LED, LED meeting railway signal light color glass coordinate Centre coordinate x=0.4338 in product figure, y=0.4030, major axis a=0.00834, short axle b=0.00408, the anglec of rotation is 53.2 ° In the range of ellipse, and color rendering properties is not less than 90.

In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:

Using the white light LEDs of this coordinate range and color rendering properties, the color coordinates relevant in ferrum mark that meets that can be relatively simple is wanted Ask.

Accompanying drawing explanation

Fig. 1 is that one group of test data of the LED signal lamp using the present invention to make are in standard 1931-CIE chromaticity diagram Correspondence position

Fig. 2 is the 1931-CIE chromaticity diagram of standard, and in figure, arrow indication is what is called " Planck curve "

Fig. 3 is the Planck curvilinear coordinate figure amplified.

Detailed description of the invention

All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive Feature and/or step beyond, all can combine by any way.

It is known that the luminescence of electric filament lamp is to flow through tungsten filament by electric current, tungsten filament heating is produced substantial amounts of heat outside Emittance thus luminous, therefore its spectrum comprises ultraviolet light, visible ray and infrared light；And the luminescence of white light LEDs is only passed through Blue light excites yellow fluorescent powder to produce white light, and its spectrum only comprises the partial spectrum that the red, green, blue in visible ray is trichroism.Thus, Incandescent lamp bulb and LED are after by the most homochromy glass filtration of railway signal lamp mechanism, and color out shown by it is at integration Under the test of ball, really having certain difference, this also has led to using single white light LEDs as railway signal lamp light source It is to have certain difficulty.The present invention is on the basis of theory analysis and a large amount of test, it was found that a white light coordinates scope, makes By the LED signal lamp of this color gamut, it is possible to meet the requirement to different colours coordinate in ferrum mark.

Such as table 1 below and Fig. 1 institute example, table 1 top half is to red, green, blue, white, yellow concrete coordinate requirement in ferrum mark, under Half part is the measured data of the LED signal lamp using the coordinate in this invention to make.Fig. 1 is that the coordinate range of ferrum mark requirement exists One group of data coordinate position in the drawings in scope frame in the 1931-CIE chromaticity diagram of standard and table 1.Visible, its position is Meet what ferrum target required.

Table 1

Below in conjunction with Fig. 2, Fig. 3, the present invention is elaborated.

Fig. 2 is the 1931-CIE chromaticity diagram of standard, and in figure, arrow indication is what is called " Planck curve ", Planck song Being so-called " three primary colours " mixed white in the upper and lower certain limit of line, curve becomes for colour temperature change from high to low from left to right Gesture, such as 10000 ~ 1500 numeral such as grade in figure.

Fig. 3 is the Planck curvilinear coordinate figure amplified, coordinate x=centered by the LED coordinate range that the present invention uses 0.4338, y=0.4030, major axis a=0.00834, short axle b=0.00408 is in the range of the anglec of rotation is the ellipse of 53.2 ° and aobvious Color is not less than 90, i.e. oval three regions, rank of the brown of arrow indication in figure.

Using the LED of this coordinate range and color rendering properties, the color coordinates relevant in ferrum mark that meets that can be relatively simple is wanted Ask.

Claims

1. the LED meeting railway signal light color glass coordinate, it is characterised in that the glow color coordinate range of LED is mark Accurate centre coordinate x=0.4338, y=0.4030, major axis a=0.00834 in 1931-CIE chromaticity diagram, short axle b=0.00408, In the range of the anglec of rotation is the ellipse of 53.2 °, and color rendering properties is not less than 90.