LED color test with an integrating sphere system

-

A light-emitting diode (LED) color test is a technique for analyzing and rating an LED's color output. The color and brightness of the LED's light, as well as its spectral distribution, are measured throughout the test. This data is helpful for checking if the LED bulb's color temperature and chromaticity are on target.

A spectrophotometer or a colorimeter are only two examples of the tools that may be used to conduct an LED color test. A graph or table depicting the light's spectral distribution is often used to illustrate the test's findings. The LED light's color accuracy may then be evaluated by comparing the findings to required parameters, such as industry standards or manufacturer specifications.

If you want to be sure your LED lights are up to par and will function as you want them to, then you need to run them through a quality control procedure that includes a color test.

In order to determine the spectral distribution of the light produced by an LED, a system based on an integrating sphere may be used to conduct a color test. Instructions for conducting such a test are outlined below.

  • Prepare the integrating sphere system, which comprises of the sphere itself, a photometer, and a spectrophotometer. Put these parts together in accordance with the manual.
  • The LED light should be installed within the integrating sphere with the light source pointing toward the center of the sphere.
  • Before beginning the test, calibrate the spectrophotometer as directed by the manufacturer. As a consequence, this action is required for reliable outcomes.
  • After the LED light has been fitted, switch it on and let it warm up before using it.
  • Use a spectrophotometer to determine how the light from the LED bulb varies throughout the visible spectrum. This metric, which is often shown as a graph or table, tells us how bright a light is as well as what hue it is.
  • Keep track of the data: Note down the readings from the spectral distribution measurement of the LED bulb.
  • Evaluate the LED light's spectral distribution measurement results against the ideal profile. Using this method, you may check whether the LED bulb's color output is satisfactory.

Comments

Post a Comment

Popular posts from this blog

-
Image
The ipx9k High Temperature Pressure Jet Waterproof Test Chamber is characterized by a waterproof grade of 9, indicating high temperature and high pressure water spraying, and spraying high temperature and high pressure water in various directions of the shell for water spraying test. In addition, k represents a function of pressurization, and under such strict conditions, its water pressure will become stronger. The ipx9 is currently a high level of waterproof protection. The IPx9 High Temperature Pressure Jet Waterproof Test Chamber is also widely used in fields such as LED lighting fixtures, display screens, household appliances industry, automobiles, and automotive accessories. At the same time, all dust and waterproof equipment can be customized according to user needs. The ipx9k High Temperature Pressure Jet Waterproof Test Chamber has four different vertical spray angles, namely 0 °, 30 °, 60 °, and 90 °, and the water pressure can reach 8000 to 10000 Kpa; Moreover, its testing r
Read more
-
Image
Capacitance  refers to the ability to hold a charge. It is a medium for realizing the storage and release of static charges, with the characteristic of permanent charge storage. Capacitor components are widely used in power supply filtering, signal filtering, signal coupling, resonance, filtering, compensation, charging and discharging, energy storage, and power separation in circuits. According to its ability to accommodate charges, it is generally measured in Farads, and the international unit is Farads. Therefore, capacitors are essential components for electronics and power. The role of capacitors: Bypass capacitors and decoupling capacitors are two devices that provide energy storage for local devices. Bypass capacitors can reduce load demand, make the output of the voltage regulator smooth, similar to a small rechargeable battery, and can be discharged and charged. The decoupling capacitor can smooth the edge signals of the device, so as to prevent the input signal from being too
Read more
-
Image
1 General 1.1 Scope and object This International Standard(IEC61032) specifies details and dimensions of test probes intended to verify the protection provided by enclosures with regard to: – protection of persons against access to hazardous parts inside the enclosure; – protection of the equipment inside the enclosure against ingress of solid foreign objects. SMT IP10T_AL The object of this International Standard is: – to bring together in one publication object probes and access probes currently specified in other standards, together with any necessary new probes;    – to guide technical committees in the selection of test sphere; – to encourage those concemed to specify test probes in accordance with those already specified in this International Standard rather than modify details and dimensions; – to limit the further proliferation of types of test probe. 1.2 General recommendations When selecting probes, priority should be given to IP code probes. The use of other probes, particul
Read more