LED Measuring Principle Part2: LED Photometry Principle
3. LED Photometry Principle 3.1 Methods of Measuring Light Intensity The light intensity standard lamp, LED and silicon photoelectric diode equipped with V (λ) filter are installed and debugged in the optical benches, especially the filament position, LED shiny parts and acceptance scale location should be strictly debugged. The silicon photoelectric diode should be firstly calibrated by the [...]
LED Measuring Principle Part1: Luminous Efficiency and Flux
1 Introduction For nearly 30 years, LED technology has experienced a rapid development process. Because of its inherent advantages such as high efficiency, long life and low loss, vibration resistance and fast response speed, LED has been widely applied such as indicator light, display screen, traffic lights and so on, and it is currently being [...]
