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17" X 16" FRESNEL LENS WITH 24" FOCAL LENGTH!!
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Item No: L3656
Price: $17.00
or 10 for $150.00
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| Quality optical acrylic fresnel lens 1/16" thick, 405mm X 430mm X 610mm focal length. Constructed of thousands of tiny spiral microgrooves. These are commonly used in DIY projectors in conjunction with an achromatic lens. Fresnels were originally designed to be used in lighthouse because of their light weight. Also could be used to build a solar furnace. And makes a great magnifier for TV, computer screen, reading, etc.. Unused in mint condition! While supplies last! |
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