Taixing Hechen Crystal Technology Co., Ltd.----Analysis of the design effect of optical lens

With the continuous development and popularization of industrial civilization, people's requirements for high-precision products are getting higher and higher. On the current market, with the rapid development of the astronomical telescope industry, the optical effects required by different places and different customers are also very different. , Its design therefore ushered in a challenge. How to design a lens with high light transmittance, high-end and low-cost has become one of the main research areas of light distribution in the current industry. Today, optical lens manufacturers will talk about effect design.

As we all know, the speed of replacement of telescope products is jaw-dropping. The development of optical lenses is also advancing by leaps and bounds. But on the whole, the market is most concerned about the visual effects and overall lighting effects of the lamps. For this reason, the design of the lens must meet the needs of three aspects: 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:

optical lens

The first lens adopts a free-form surface design on the side wall surface, the near-beam surface and the eyeball surface, and the light output angle is adjustable from 250 to 600. Generally, it is 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 external straight face scale and the compound eye design in the center of the light emitting face. 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.

In addition, with the high-end market demand and the cost considerations of lamp manufacturers, the design of a lens with multiple light sources is also a key point for telescope designers to pay attention to.

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.