Junction temperature testing method based on temperature variation of LED (light-emitting diode) relative spectrum
A test method and temperature-dependent technology are applied in the field of junction temperature testing devices based on the relative spectrum of LEDs that change with temperature, which can solve the problems of difficulty in unifying accuracy and convenience, and difficulty in measurement, and achieve small driving current and reduced measurement. Error, easy adjustment effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0037] combine figure 1, a junction temperature test device based on the change of LED relative spectrum with temperature in this embodiment, including a driving power supply 1, a thermostat 2, a lamp holder 3, an integrating sphere 5, a spectrum analyzer 6 and a computer 7. One end of the spectrum analyzer 6 is connected to the integrating sphere 5, and the other end is connected to the computer 7. The spectrum analyzer 6 is used to collect the spectrum of the LED4 to be measured, and the collected spectrum is transmitted to the computer 7. The computer 7 is used for recording and recording. Process the spectral data, because the inner surface of the integrating sphere 5 is coated with non-wavelength-selective diffuse reflective white paint, the illuminance of the LED4 to be measured in any direction in the integrating sphere 5 is equal, so that the spectral analyzer 6 collects The spectrum is more accurate, which improves the accuracy of the test; the driving power supply 1 ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com