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pvl35334! Store
DANGER! DANGER! WARNING!
WARNING: This is highly technical science APPARATUS -- not for dummies!
Fresnel Lenses 3X5 INCHES
A Fresnel lens replaces the curved surface of a conventional lens with a series of concentric grooves, molded into a surface of a thin, light-weight plastic sheet. The grooves act as individual refracting surfaces like tiny prisms when viewed in cross section, bending parallel ray in a very close approximation to a common focal length. Because the lens is thin, very little light is lost by absorption. Fresnel lenses can be used as magnifiers (except #26091) or projection lenses. However, there is a high level of distortion. ALL SIZE FIGURES FOR FRESNEL LENSES ARE IN INCHES.
If you liked this high magnetic technology, we have others you should see;
Magnetic viewing film, makes magnetic fields visible. Magnet cubes, the most powerful magnets ever made Blackboard nails, hold upto 20 pages Magnetic chips, transparent plastic coin shaped magnets Magic rings, pickup tableware with a pass of your hand Magnetic dish, high magmetic technology made practical Magnetic paper, printable material with intense magnetic field Magnetic marbles, high technology that peoduces astonishing effects Powersheet, turns light to electric power. Just be careful, these high-tech items are really out on the edge.
Other Sun Source Power Advanced Magnetic Technology
Field view
Magnet cubes
Blackboard nail
Magic Rings
Magnetic chips
Technology So Advanced, It could be Magic Combined shipping is available ONLY if you contact us before BIDDING on additional items and ONLY after receiving a quote on the combined shipping and handling costs. Many items can be shipped at substantially lower cost (some are even free). Please do not ask for reductions after ordering. SHIPPING AND HANDLING COST INCLUDE ALL OF THE FOLLOWING COST;
POSTAGE OR TRANSPORT CHARGES
SHIPPING INSURANCE
CUSTOMER SERVICE FOR LOST AND DAMAGED SHIPMENTS
PACKAGING TIME AND MATERIALS
DELIVERY TO SHIPPER
AUCTION FEES
PAYPAL, CC OR G C FEES SOME TIME AGO, THE NUMBER AND VARIETY OF THE ITEMS WE SELL BECAME TOO LARGE TO DETERMINE SHIPPING COST FOR. THE TIME REQUIRED TO RESEARCH SHIPPING COST AND THE DIFFICULTY IN GETTING THE INFORMATION TO THE BUYER EXCEEDED ALL OTHER LABOR COST COMBINED. TO RESOLVE THIS DIFFICULTY, WE CREATED A DATA BASE WHICH ACCUMULATED THE SHIPPING COST FOR EACH ITEM, DIVIDED THOSE COST BY THE NUMBER OF ITEMS SOLD AND CREATED A FIXED COST FOR SHIPPING AND HANDLING AS AN AVERAGE COST. THIS MEANS THAT SOME BUYERS WILL PAY MORE THAN THE ACTUAL COST OF SHIPPING AND HANDLING AND OTHERS WILL PAY LESS, BUT THE COST ARE LESS FOR EVERYBODY BECAUSE YOUR ORDER REQUIRES MUCH LESS TIME TO SHIP. Credit card fees are lower than paypal, so we discount the cost including shipping and handling 5% if you pay with a credit card. Just let us know and we'll send an invoice. You can use any credit card with a G C invoice.
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