2Pcs 50mm80mm Fresnel Lens For Google Cardboard 3D Virtual Reality VR

About Fresnel lens:

-FRESNEL LENS works well with wide angle lens which tends to give dark corners.

-Class leading brightness and contrast comparing to

-Provision of critical focus reference point for utmost accuracy

-Thinnest profile in the market with minimized focus shift

-This can really be a great and creative gift to children as a toy and senior people who need visual aid.

Application:

Fresnel are most often used in light gathering applications, such as condenser systems or emitter/detector setups.

It can also be used as magnifiers,3D display or projection .

This Lens is also great for the fine print in books, magazines , maps, telephone directories, recipes, etc.

Specification:

Material: PVC（ casting）

: Transparent

Shape: Flat

Lens Diameter:50mm

Focal Length:80mm

Thickness:1mm

Please notice:

All the have injection port at the edge ,it look like crash trace,actually not,just designed for this.

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