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Display device comprising a three-dimensional light distributing body

  • US 8,506,131 B2
  • Filed: 05/28/2010
  • Issued: 08/13/2013
  • Est. Priority Date: 06/03/2009
  • Status: Expired due to Fees
First Claim
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1. A display device comprising:

  • a support and luminous means arranged on said support, the luminous means comprises a surface mount light emitting diode (LED); and

    a light distributor as a separate component that is provided above said luminous means with a direction of light emission away from said support and away from said luminous means, said light distributor comprising a three-dimensional light distributing body with a light entrance side facing towards said luminous means and a light exiting side facing away from said luminous means, wherein said light distributing body comprises a transparent material and said light entrance side is shaped to optimize a uniform light distribution from said luminous means to said light exiting side,wherein the light distributing body is provided above said surface mount LED,wherein said light entrance side comprises a double S shape in side section, with its highest point over a centre point of said luminous means or said light-emitting area thereof, andwherein a maximum height difference between a lowest point and said highest point of said light entrance side amounts to less than 0.2 mm.

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