Characteristics of 60 degree extruded acrylic optics lens
1. high transparency: PMMA has excellent optical transparency, with a transmittance of more than 92%, almost the same as glass, and can provide clear visual effects. This makes acrylic lenses commonly used in optical applications requiring high transparency, such as projectors, optical instruments and lighting systems.
2. portability: compared with glass lens, PMMA lens is lighter, which reduces the overall weight of the equipment and is easy to carry and install. Especially in the equipment requiring a large number of lenses, weight reduction is very important.
3. processability: PMMA material is easy to process, and various shapes of lens can be made by cutting, polishing, thermoforming and other methods to meet different design requirements. This makes acrylic lenses very common in customized products.
4. UV resistance linearity: PMMA is naturally UV resistant, which can effectively block UV rays, protect optical equipment from UV rays, and reduce UV damage to the surrounding environment.
5. weather resistance: PMMA has strong aging resistance and can be used in outdoor environment for a long time without yellowing or deterioration.
Application: lighting and optical equipment: acrylic lens is commonly used in LED lighting, condenser, projector and other equipment, and achieves specific lighting effect by controlling the refraction or focusing of light.
Acrylic is a kind of plastic material with high light transmittance, which is about 95%-92%. It is of good quality among plastic lenses. The interior of acrylic lenses is clear and transparent, and the surface is as smooth as glass. It is hard and not easy to break.
What is the light transmittance?
Transmittance refers to the percentage between the transparent or translucent luminous flux and its incoming luminous flux.
Take a simple example: compare the acrylic transparent plate, acrylic half lens and acrylic single-sided mirror.
Acrylic transparent plate:
The light transmittance of the new material acrylic plate can reach more than 92%. If a beam of light (100%) is irradiated on the acrylic plate, without calculating the absorbed light, about 92% of the light will pass through the acrylic plate, and the other 8% of the light will be reflected by the surface of the acrylic plate.
Extruded acrylic optics lens:
Take a commonly used 15 ° half lens. Without calculating the absorption light and environmental factors, 150% of the light is irradiated by a beam (100%) ° on the half lens, only 15% of the light passes through the half lens, and the remaining 85% of the light will be reflected back. Again, you can get 20. ° half lens can only transmit 20% light, 30%. ° the half lens can only pass through 30% of the light.
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