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Optical laminated bodies, lighting equipment and area luminescence equipment

  • US 20050024558A1
  • Filed: 09/03/2004
  • Published: 02/03/2005
  • Est. Priority Date: 06/09/1999
  • Status: Active Grant
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, and (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, wherein the light source comprises a plurality of diffusing points of a light diffusive substance disposed on a surface of the light source, 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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