LED spotlight lens function

The development of LED spotlight lenses is also advancing by leaps and bounds. But on the whole, the most attention on the market is the visualization and overall lighting effects of lamps. For this reason, the design of the lens must meet three requirements: one is the novelty of the lens shape; the other is the effective light transmittance of the lens; 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 eyeball surface are adjustable. The light output angle is adjustable from 250 to 600. It is generally made of PC material. It can be used for COB light source spotlights with a maximum light-emitting surface diameter of 14mm. Its effective optical transmittance is The maximum can reach 94%.

The second type of lens adopts the outer straight face scales, and the center of the light emitting surface is designed with compound eyes. The third lens adopts the design of external free-form surface, near-beam surface and light-emitting surface with compound eyeball surface.

The second and third 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 dispersed by the compound eyeball surface, and the visual effects are COB-like, which expands the light source selectivity.

It can be seen that the lens design of LED directional lighting lamps has gradually moved towards aesthetics and commonality. How to improve the effective transmittance, spot uniformity and commonality of directional lighting lamps will become the mainstream design.