Overall size: 260mm x 260mm
Fresnel size: 260mm x 260mm
Thickness: 2mm
Material: optical acrylic
Groove pitch: 0.2mm (127 grooves per inch)
Focal length: 200mm
Application: Solar energy collector system, Quick start a fire under sunlight, projection TV projector, reading magnifier for low vision aid ...
Quantity Unit price
100~ $11.60
50~ $13.00
25~ $14.40