3528Top mold lamp bead
LED Beads
Keyword:
The important aspects of LED optical parameters are luminous flux, luminous efficiency, luminous intensity, luminous intensity distribution and wavelength.
Luminous efficiency and luminous flux
Luminous efficiency is the ratio of luminous flux to electric power, generally in lm/W. Luminous efficiency represents the energy-saving characteristics of light sources, which is an important indicator to measure the performance of modern light sources.
Luminous intensity and light intensity distribution
The luminous intensity of LED indicates its luminous intensity in a certain direction. Since the luminous intensity of LED varies greatly in different spatial angles, we have studied the luminous intensity distribution characteristics of LED. This parameter has great practical significance and directly affects the minimum viewing angle of LED display device. For example, if the LED single-tube distribution range of large color display screen in stadiums and gymnasiums is very narrow, the audience who faces the screen at a large angle will see the distorted image. Moreover, traffic lights also require a large range of people to recognize them.
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