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Download Topic 8: Holography
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Transcript
NIVER S Y Modern Optics IT TH E U D I U N B Stamp holograms (exactly like CDs or records), Brass Stamp Soft Plastic Solid Substrate Coat with Aluminum to get reflective structure. Embosed Fringe Pattern Aluminium Coating Solid Substrate Mass production process, so VERY cheap. (used on Credit Cards and advertising). 10p each. Security item, difficult (but NOT impossible) to copy. Poor quality, with limited 3-D effect. Not useful in optical systems, but major commercial use of holography. PTI D O CS GR IE SI PA RT Y DE CS P OU AP PL M E N of P H T Holography -29- R G H O F E Autumn Term
