How to detect LED full-color display optoelectronic performance
Travel Motor
This column mainly shows the excavator Travel motor parts.
Travel Motor,Hydraulic Travel Motor,Excavator Final Drive Motor,Hydraulic Final Drive Motor Jining Juheng Hydraulic Machinery Co., Ltd. , https://www.juheng-cn.com
First, full-color LED screen photoelectric function parameter analysis:
The primary parameters of the photoelectric color function include: total power of the lamp, power factor, light intensity distribution, total luminous flux output of the lamp, output luminous efficiency, lumen maintenance rate/ luminous flux maintenance rate, correlated color temperature, color rendering index, color tolerance, color coordinate, color The product's spatial non-uniformity, etc.
Second, LED full-color display photoelectric function indicators:
1, the electrical characteristics include: lamp power, power factor.
2. Thermal functions include heat resistance and junction temperature.
3, color features include: correlated color temperature, color contrast index, color coordinates, color forgiveness, the main wavelength (monochrome), uneven color uniformity and color space distribution.
4. The characteristics of the day mainly include the switching frequency test, daily/accelerated life test, lumen repair rate (luminous maintenance rate)/strength repair rate.
Third, full-color LED screen photoelectric detection methods:
1. The viewing point and light intensity of a reflective cup-type MR16 or PAR beam can be measured by a cubicle distributing photometric measurements. When testing, mechanical axis, axial line. Defects are the abnormal operating conditions of the test stance and require revised test results.
2, LED light can also be used to measure the spread of photometric measuring device, when the test gamma scale to180 degrees, and the center of the middle of the mechanical axis consistent with the lamp. The flaw is that the exam is too long.
Summary: Under the premise of the correct test method, through the appropriate selection of detection methods to complete the full-color LED screen accurate measurement of the parameters of the photoelectric color function, to scientifically evaluate the status of the full-color LED screen function and provide support for the development trend of the data. Text / Shenzhen LED base (WeChat public number: Shenzhen LED base)
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