Nowadays,the LED light optical design mainly concentrate upon two aspects,the first one is optical design,and the other is heat dissipation issue.Let's discuss the first issue.

In fact, the single LED of the whole car light is a point source.The point source has a obviously characteristic-it can glow only in one direction.So if we want to use the special light as car lighting source,we must do something with this kind of light.The designers think that it is necessary to relative the concentration point of the light into a certain angle of astigmatism.Only in this way ,can it meet our requirements and purpose.In addition,it has less light failure.To a certain extent,we can make the most of the light for we can use the transmission out of the light to achieve the auto lighting.

Though there is a great development in LED light optical design,it is still a point source when compared with the face light source.Because of its brightness is too centralized, if we see LED light source directly,it brings some damage to our eyes. So in the led car light such as car interior lights, we need to further into the light process, then increase the optical design, and must achieve the purpose that people can have a direct observation and the light has downy light at the same time. On the other hand even this kind of light itself has reached to 120 degree range, but when it is used as interior lighting directly, we will feel the roof is a dark.We must use the automobile lamps'lanterns to spread out the light again to achieve the normal automotive lighting and to achieve the ideal of the lamp lighting effect.

The LED light optical design has already become one indicator of the product quality standards.The LED light optical design is an item in the led car light of the design and development.

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