Quote:
Originally Posted by obelix
If you are thinking about commercial device, I think there is a better technology, but very hard to make it without special equipment. A plastic sheet with 10 micron scratches (triangular), seprated by 100 micron gaps. This design perfectly direct light to the page at the same time being transparent. In contrast to LightWedge, the thickness of the plate can be thin. This technology is used in some frontlight illumination displays. I was not able to get one to try.
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Thats actually very interesting, if this has a special name that would be very helpful, like the flat lenses that have the etched rings are called something (I think bernell lenses)
My first version has a light wedge cut down to fit inside the resessed part of the reader, is running on 1 led, and 2 sr1220 3v cells. so far it is turning out well, but who knows what I will end up with. I will likely make 2 of them, and sell the second on e-bay to mack back some of my costs.
