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Optical laminated bodies, lighting equipment and area luminescence equipment

  • US 6,972,813 B1
  • Filed: 06/08/2000
  • Issued: 12/06/2005
  • Est. Priority Date: 06/09/1999
  • Status: Expired due to Term
First Claim
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1. A lighting device comprising:

  • (A) An optical laminated body comprising(i) a polarizing layer,(ii) a first transparent film disposed closely to a front surface of the polarizing layer, and(iii) a second transparent film disposed closely to a back surface of the polarizing layer, wherein the polarizing layer comprises a reflective polarizing film, and both of the first transparent film and the second transparent film are diffusive films,(B) a light source supplying light to the optical laminated body through a light entry surface of the first transparent film of the optical laminated body, and(C) a lens film disposed between the light source and the optical laminated body,the lighting device providing diffused-polarized light emitted from a light emitting surface of the second transparent film of the laminated body.

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