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LED lamp for light source

  • US 8,093,613 B2
  • Filed: 11/23/2009
  • Issued: 01/10/2012
  • Est. Priority Date: 06/13/2003
  • Status: Active Grant
First Claim
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1. An LED lamp comprising:

  • a base unit;

    an LED chip located in the base unit and capable of emitting light in a light emitting direction; and

    a shielding member located adjacent a portion of said LED chip, the shielding member forming a window that has a non-symmetrical shape when viewed from the light emitting direction, the window located adjacent the LED chip and in the light emitting direction of the LED chip such that a non-symmetrical light distribution characteristic is emitted from the lamp via the shielding member by the light emitted from the LED chip,wherein a surface of the shielding member opposing the LED chip is inclined for reflecting light in the direction of a non-shielded portion of the LED chip.

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