2 Pcs Professional Projection/projector Diy Kit Fresnel Lens For 7 Inch Lcd DIY

Description

2 Pcs Professional Projection/pro
jector Diy Kit Fresnel Lens For 7 Inch Lcd DIY
Item Description
2 Pcs Professional Projection/pro
jector Diy Kit Fresnel Lens For 7 Inch Lcd DIY
Package
include:
front 158*95mm f=170mm 1 piece
back 160*95mm f=120mm 1 piece
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.
Product Specification:
Material: PMMA
Groove pitch: 0.1mm
Transmission (%): 92 (from 400-1100nm)
Operating Temperature (°C): 80 (Maximum)
usage: for 6 inch LCD
Material is Acrylic with transmission of 92% throughout the visible spectrum.
Maximum service temperature is 80°C.
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