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HomeNewsApplication of fresnel lens

Application of fresnel lens

2021-04-09
Imaging
Like TV-screen enlarging device, simple hand-held magnifiers, traffic lights, stage light, rear view enhancer, etc.


Projection

Used in overhead projectors and projection televisions. Fresnel lenses of different focal lengths (one collimator, and one collector) are used in commercial and DIY projection. The Collimator Lens has the lower focal length and is placed closer to the light source, and the collector lens, which focuses the light into the triplet lens, is placed after the projection image (an active matrix LCD panel in LCD projectors). Fresnel lenses are also used as collimators in overhead projectors.


Photography

Canon and Nikon have used Fresnel lenses to reduce the size of telephoto lenses. Photographic lenses that include Fresnel elements can be much shorter than corresponding conventional lens design.


Solar Power

Since plastic Fresnel lenses can be made larger than glass lenses, as well as being much cheaper and lighter, they are used to concentrate sunlight for heating in solar cookers, in solar forges, and in solar collectors used to heat water for domestic use. They can also be used to generate steam or to power a Stirling engine.

Fresnel lenses can concentrate sunlight onto solar cells with a ratio of almost 500:1.This allows the active solar-cell surface to be reduced, lowering cost and allowing the use of more efficient cells that would otherwise be too expensive.

Changchun Realpoo Photoelectric Co., Ltd.
Business Type:Trade Company , Manufacturer
Product Range:Optical Filters , Eyeglasses Lenses , The Basis of Surgical Instruments
Products/Service:Convex Lens , Prism , Cylindrical Lens , Laser module , Concave Lens , Collimator Lens
Certificate:Test Report , TUV
Company Address:No.4 Puqing Road,Changchun,China, Changchun, Jilin, China

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