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2023
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Difference between primary and secondary optical design
High-power LED lighting components generally undergo two optical designs before becoming lighting products. When packaging LED ICs into LED optoelectronic components, an optical design is carried out to solve the LED's light output angle, light intensity, luminous flux size, light intensity distribution, color temperature range and distribution. This is called primary optical design. Secondary optical design is for high-power LED lighting: general high-power LEDs have a primary lens, light-emitting angle of about 120 degrees. Secondary optics is the light after the primary lens and then through an optical lens to change its optical properties.
We must soberly realize that the primary optical design is the basis of the secondary optical design. Only a reasonable optical design package design, to ensure that each LED light-emitting components of the quality of light, in order to carry out the secondary optical design on the basis of the primary optical design, in order to ensure that the entire light-emitting system of light quality. Simply put, the purpose of the primary optical design is to take out as much light as possible from the LED chip. The purpose of the secondary optical design is to make the whole lighting system emit light to meet the design requirements.
Keywords: intelligent lighting
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