Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Patent
1998-01-13
1999-12-07
Spyrou, Cassandra
Optical: systems and elements
Extended spacing structure for optical elements
Extension of tubular element adjustable
359483, 359900, 362 19, 40434, 40900, 446219, G02B 530, G09F 1300, A63H 3322
Patent
active
059993170
ABSTRACT:
Toy or novelty including a first polarizer and a second polarizer movable relative to the first polarizer. In a first mode, the first and second polarizers interact to be reflective, and in a second mode, the first and second polarizers is transmissive. The toy may further include an object or image located adjacent the second polarizer, wherein the object or image is viewable through the first and second polarizers in the second mode.
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3M Product Brochure, "3M.TM. Dual Brightness Enhancement Film (DBEF)", 75-0500-2062-9, Copyright 3M, 1996.
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3M Innovative Properties Company
Allen Gregory D.
Jr. John Juba
Spyrou Cassandra
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