LED spotlight optical lens design principle
Time:2020-09-03  来源:Dongguan Lianlong Optoelectronic Technology Co.Ltd
How to design a lens with high light transmittance, high grade and low cost has become one of the main research fields of LED spotlights.
The most concerned thing in the market is the light effect of the whole lamp. Therefore, the design of the lens must meet three requirements: one is the effective transmittance of the lens; the other is the innovation of the lens shape; the third is the visual effect of the lens and the lamp. . According to the above three requirements, the common lens designs on the market mainly include the following three types:
The first type of lens adopts the external straight-faced scale armor and the compound eye design in the center of the light-emitting face.
The second lens side wall surface adopts a free-form surface design, the near-beam surface is compounded with the eyeball surface, and the light output angle is adjustable from 250 to 600. It is generally made of PC material and can be used for COB light source spotlights with a maximum light-emitting surface diameter of 14mm. The maximum can reach 95%.
The third and second lenses are generally made of PC material, which has high temperature resistance. The light source can be a patch light source module or COB light source. The light output angle is adjustable from 300 to 600, and the light is uniform. In external viewing, the modular patch light source can be scattered by the compound eyeball surface, and the visual effect is COB-like, which expands the light source selectivity.
It can be seen that the lens design of LED directional lighting lamps has gradually moved in the direction of aesthetics and commonality. How to improve the effective transmittance, spot uniformity and commonality of the directional lighting lamps will become the mainstream design.
Speaking of so many optical design reasons, when talking about our company Lianlong Optoelectronics, our company pays most attention to the cultivation of talents, especially in this optical industry, the R&D and design team is very important, and our company has a strong R&D team. The team has rich theoretical and practical experience. If you need it, our company can give you an optical design solution from scratch.