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- Feb 11, 2009
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I have recently talked to my good friend, Tim, in NJ (he is an engineering genius), and I mentioned my experimenting with lasers. I told him that I have been using an Aixiz module (with an acrylic lens) to focus the beams of my Blu-ray diodes, and he sounded mortified? “Why would you use acrylic when you can use crystal?!”, he said. Then he went into a scientific definition of the acrylic or glass weakening the beam and not packing it into a tight enough pattern. He suggest I go to a rock store and buy a clear crystal and buff it, or go to an antique store and buy a lead-crystal glass and use the stem of the glass to focus the beam. He says that using crystal tightens the pattern of the beam much more than acrylic, and that it is a much better material to use.
Any suggestions or thoughts? I myself do not know if this is true, and if so how big should the crystal be, should there be a certain shape, does it need to be concave or convex, etc. I am a bit skeptical and would love to hear what everybody has to say.
Any suggestions or thoughts? I myself do not know if this is true, and if so how big should the crystal be, should there be a certain shape, does it need to be concave or convex, etc. I am a bit skeptical and would love to hear what everybody has to say.