Application of Fresnel lens in LED projection lamp

When it is necessary to calibrate the light source of the LED illuminator to a wider Angle range.The most common method is to use mirrors that combine with Fresnel lenses, which are cut from spherical surfaces, to reduce the need for optical components.In order to minimize the image optical aberration;Fresnel lens for LED light distribution

In real life, improve the effect of brightness, however, solid state light source such as LED is very small, so as long as the distance between the lens and the LED, the appropriate relative to the same lens and the LED lamp, different focal length, the distance is different, so the Fresnel lens can adjust the LED light output for parallel light, single star lamp or LED lights can be designed according to demand more than array, limiting the plastic optical materials at very close to the light source applications: most of the heat conduction is produced due to LED.Has been widely used in LED projection light, colorful projection light, lighting, landscape lights, signal lights, and a variety of lamps

First, the application usually.The lens can better calibrate the ideal point light source into a parallel light source,

Two, the characteristic, can have to increase the light effect.The product precision is high, the quality is good, but the traditional incandescent light source produces a lot of radiation heat: can set the light Angle arbitrarily.

The product has an ultrathin structure.No light source is a real point light source, super size,

Using high precision original mold.It's easier to use plastic optical lenses,

Product shape can be cut at will, can be used as a point light source.To meet the nuances of different products for different customers,

Three, summary.Ultralight weight is a kind of widely used optical element.Including optical engineering, diamond turning process.

Fresnel lenses compared to conventional lenses.Molding, injection molding, casting and other manufacturing processes, polymer materials engineering, CNC machining, the design and manufacturing involved in a number of technical fields.Nickel plating process.It has the advantages of large area, light weight, low price and portability. Therefore, the design, development and production of large and high precision Fresnel lens have become the main technical development direction of domestic and foreign production departments.