CN203178063U

CN203178063U - LED color coordinate test system

Info

Publication number: CN203178063U
Application number: CN 201320171248
Authority: CN
Inventors: 胡祺君; 王继超; 钱卫东; 金欣
Original assignee: SUZHOU SOLAR TECHNOLOGY Co Ltd
Current assignee: SUZHOU SOLAR TECHNOLOGY Co Ltd
Priority date: 2013-04-08
Filing date: 2013-04-08
Publication date: 2013-09-04
Anticipated expiration: 2023-04-08

Abstract

The utility model provides an LED color coordinate test system. The LED color coordinate test system comprises a single-chip microcomputer, an LED under test, an optical fiber, a color sensor, an amplifier, an A/D converter and a host computer. The LED under test is connected with the single-chip microcomputer; light emitted from the LED is transmitted to the color sensor through the optical fiber; the color sensor is connected with the stored program control amplifier with high precision; the stored program control amplifier with high precision is connected with the A/D converter; the A/D converter is connected with the single-chip microcomputer; and the single-chip microcomputer finally calculates a color coordinate value and communicates with the host computer for further processing of the color coordinate value. The LED color coordinate test system of the utility model can test the LED color coordinate value quickly and accurately; a mechanical mechanism which is used in a conventional test method is not needed; the whole test device runs fast and is simple in structure and high in precision; cost of the whole test device is far less than that of a conventional test device; and photoelectric product test requirements are met.

Description

A kind of LED chromaticity coordinates test macro

Technical field

The utility model relates to.The utility model relates to a kind of quick, easily-testing method of LED chromaticity coordinates value, and the method can be widely used in the qualitative control and classification of LED photovoltaic.

Background technology

At present, general LED chromaticity coordinates value is to use physical method to measure.Related instrument comprises expensive grating instrument and spectrometer etc.In the method that conventional physical is measured, though measuring accuracy is higher, but shortcomings such as test speed is slow, testing apparatus is expensive, difficult in maintenance are arranged, can't satisfy the requirement of modern times high speed test, low price, simple and easy maintenance and simple structure of needs in photoelectricity series products production run.

The utility model content

In order to satisfy the demand of modern photoelectricity series products, it is a kind of based on Single-chip Controlling that the utility model provides, the high speed LED chromaticity coordinates test macro of being formed by novel color sensor and adjunct circuit, can test the chromaticity coordinates value of LED fast and accurately, do not need simultaneously the mechanical mechanism that uses in the conventional test methodologies, whole testing apparatus speed is fast, simple in structure, degree of accuracy is high and cost reduces significantly than traditional test equipment, can satisfy modern photoelectricity series products testing requirement.

To achieve these goals, the utility model is by the following technical solutions:

A kind of LED chromaticity coordinates test macro, described test macro is made up of single-chip microcomputer, tested LED, optical fiber, color sensor, program control high-precision amplifying, A/D converter and host computer, described tested LED connects with single-chip microcomputer, LED is luminous to import color sensor into by optical fiber, described color sensor connects with program control high-precision amplifying, program control high-precision amplifying connects with A/D converter, A/D converter connects with single-chip microcomputer, and single-chip microcomputer will finally calculate the chromaticity coordinates value and be further processed with host computer communication.

Further, tested LED is luminous for described Single-chip Controlling, LED lights the back issued light and receives and guide to color sensor by optical fiber, color sensor is imported program control high-precision amplifying after converting light signal to electric signal, program control high-precision amplifying is amplified to input a/d converter after the suitable amplitude with input signal, A/D converter is converted to numeral back input single-chip microcomputer with input signal, the data based virtual condition that single-chip microcomputer will be imported calculates the chromaticity coordinates value of actual tested LED, and single-chip microcomputer is done further processing with the chromaticity coordinates value with host computer communication.

Further, tested LED electrical quantity is by Single-chip Controlling, and described program control high-precision amplifying is accurately controlled enlargement factor by single-chip microcomputer and input signal is amplified.

The beneficial effects of the utility model are:

1, by the tested LED of Single-chip Controlling, LED to be lighted the light that will send with optical fiber the back be incorporated in the color sensor, color sensor decomposes light synchronously and converts corresponding electric signal to;

2, substitute traditional light splitting and grating equipment by color sensor and can test the chromaticity coordinates value of LED fast and accurately, and can implement program control test by monolithic, for extensive photovoltaic production, detection provide the high speed test platform.

Description of drawings

Fig. 1 is the utility model theory diagram

Number in the figure is:

1-single-chip microcomputer 2, the tested LED of 3-LED test operation circuit 4-

5-optical fiber 6-color sensor

The 7-light sensor exports program control high-precision amplifying incoming line to

The program control high-precision amplifying of 8-

The program control high-precision amplifying of 9-exports the A/D converter incoming line to

10-A/D converter 11-A/D converter exports the single-chip microcomputer incoming line to

12-single-chip microcomputer and host computer communication line 13-host computer

The program control high-precision amplifying operation circuit of 14-

Embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is elaborated, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection domain of the present utility model is made more explicit defining.

A kind of LED chromaticity coordinates test macro as shown in Figure 1, formed by single-chip microcomputer 1, tested LED4, optical fiber 5, color sensor 6, program control high-precision amplifying 8, A/D converter 10 and host computer 13, described single-chip microcomputer 1 is lighted by LED test operation circuit 2 and the outside tested LED4 of 3 controls, the light that tested LED4 sends imports to the other end by optical fiber 5 one ends, and the other end of optical fiber 5 is connected with color sensor 6.In color sensor 6, color sensor 6 becomes one group of electric signal with the light that optical fiber 5 imports by the color light splitting and with different color transitions.The amplitude of every group of electric signal is directly proportional with shades of colour proportion in light summation after the light splitting.Send into by circuit 7 in the precision gain control electron-amplifier 8 that mates with color sensor 6 at the stable back of the electrical signal amplitude electric signal that color sensor 6 produces.Amplifier 8 is accurately controlled enlargement factor by single-chip microcomputer 1 by program control high-precision amplifying operation circuit 14, to send into high-precision a/d converter 10 by circuit 9 after the electric signal amplification certain multiple of sending into, A/D converter 10 with the electric signal digitizing after one group of corresponding data of output, data export single-chip microcomputer incoming line 11 to by A/D converter and send into and carry out computing in the single-chip microcomputer 1.Draw the value of actual LED chromaticity coordinates after finishing dealing with, single-chip microcomputer 1 is delivered to host computer 13 by single-chip microcomputer and host computer communication line 12 and is further processed after obtaining the actual color coordinate value.

The above; it only is one of embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; any those of ordinary skill in the art are in the disclosed technical scope of the utility model; variation or the replacement that can expect without creative work all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.

Claims

1. LED chromaticity coordinates test macro, it is characterized in that: described test macro is made up of single-chip microcomputer, tested LED, optical fiber, color sensor, program control high-precision amplifying, A/D converter and host computer, described tested LED connects with single-chip microcomputer, LED is luminous to import color sensor into by optical fiber, described color sensor connects with program control high-precision amplifying, program control high-precision amplifying connects with A/D converter, A/D converter connects with single-chip microcomputer, and single-chip microcomputer will finally calculate the chromaticity coordinates value and be further processed with host computer communication.

2. LED chromaticity coordinates test macro according to claim 1, it is characterized in that: tested LED is luminous for described Single-chip Controlling, LED lights the back issued light and receives and guide to color sensor by optical fiber, color sensor is imported program control high-precision amplifying after converting light signal to electric signal, program control high-precision amplifying is amplified to input a/d converter after the suitable amplitude with input signal, A/D converter is converted to numeral back input single-chip microcomputer with input signal, the data based virtual condition that single-chip microcomputer will be imported calculates the chromaticity coordinates value of actual tested LED, and single-chip microcomputer is done further processing with the chromaticity coordinates value with host computer communication.

3. a kind of LED light quantity test macro according to claim 2, it is characterized in that: tested LED electrical quantity is by Single-chip Controlling, and described program control high-precision amplifying is accurately controlled enlargement factor by single-chip microcomputer and input signal is amplified.