overhead projector fresnel lens

PMMA optical grade( acrylic) Fresnel lens:

A series of concentric grooves on a flat, thin piece of plastic makes possible a large diameter, lightweight and inexpensive lens with a short focal length. Each groove acts as a minute refracting facet capable of bending light, thus giving greater transmittance than a conventional lens of the same focal length.

• The lens has been tested and is best for solar concentrator, solar hot water heating and so on. focal point temperature could be arrive max 800-1000 degree.
• we can also cut to circular or small size square as you need.

The range of application:

It is suitable for Projector, Epidiascope STAGE LIGHTING and so on.

Acrylic fresnel lens by pressing and injection methords, on condition that to keep the lens clean, clear and with optical effect, we could choose the processing methord of cheapest cost for the customer.

Size 

Focal length

Thickness

Groove pitch

Light Spot

Best advantage : we can make mould by ourselves, so we can customize fresnel lens according to your requirements.