In the current market, with the rapid iteration of LED spotlight lenses, different places and different customers need optical effects are very different, LED spotlight lens design therefore ushered in the challenge. How to design a high transmittance, high-grade, low-cost lens has become one of the main research areas of LED spotlight distribution.

As we all know, the speed of LED spotlight product turnover is mind-boggling, and the development of LED spotlight lens is also advancing by leaps and bounds. But overall, the market is most concerned about the visual effect of the lamps and lanterns and the whole light effect, the design of the lens to meet the needs of three aspects: one is the novelty of the lens modeling; the second is the effective transmittance of the lens; the third is the visual effect of the lens with the lamps and lanterns. According to the above three requirements, the common lens design on the market are mainly the following three:

LED spotlight lens

The first type of lens sidewall surface with free-form surface design, near the light surface compound eyeball surface, light angle 250-600 adjustable, generally use PC material, can be used for the maximum diameter of the light surface 14mm COB light source spotlight, its optical effective transmittance rate can reach 94% at most.

The second type of lens adopts external straight surface scales and the centre compound eye design on the light emitting surface. The third type of lens adopts external free-form surface, near-optical surface and exit surface compound eye bead surface design.

The second and third lens generally use PC material, high temperature resistance, the light source can be used patch light source modular or COB light source, the light angle 300-600 adjustable, uniform light. When looking out, the modular patch light source can be dispersed by the complex eye bead surface, the visual effect class COB, expanding the selectivity of the light source.

In addition, with the market demand for high-end and cost considerations of the lamp manufacturer, a lens with a variety of light source design, but also LED lens designers to focus on the main points. Compound eye bead surface and external scales in the spotlight lens on the reasonable choice, not only can make the overall visual effect of the lamps and lanterns beautiful, and can effectively solve the problem of different light sources to match the frequent design of different lenses, but also lamps and lanterns manufacturers to save a lot of design time, can effectively shorten the development of the lamps and lanterns time.

It can be seen that the lens design of LED directional lighting fixtures has been gradually to the direction of aesthetics and common, how to improve the effectiveness of the lens of directional lamps and lanterns.

How to improve the effective transmittance of directional lamps and lanterns lens, spot uniformity, common will become the mainstream of design.

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