LED primary and secondary optical design are both

Before the high-power LED lighting components become lighting products, two optical designs are generally required: the primary optical design is designed to package the LED IC into LED photoelectric components to solve the LED light-emitting angle, light intensity and luminous flux. , the intensity distribution, the range and distribution of color temperature; the secondary optical design is to change the optical performance of the light after passing through the lens through an optical lens. (The secondary optical design is for high-power LED lighting. Generally, high-power LEDs have a single lens, and the illumination angle is about 120 degrees.)

We must be consciously aware that an optical design is the basis of secondary optical design. Only one optical design and packaging is reasonable, and the light quality of each LED illuminating component can be guaranteed, and the secondary optical design can be performed on the basis of one optical design to ensure the light quality of the entire illuminating system. Simply put, the purpose of an optical design is to remove as much light as possible from the LED chip; the purpose of the secondary optical design is to make the light emitted by the entire luminaire system meet the design requirements.