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Directional Light Transmitter and Receiver

  • US 20090103925A1
  • Filed: 09/27/2006
  • Published: 04/23/2009
  • Est. Priority Date: 09/27/2005
  • Status: Active Grant
First Claim
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1. A system for transmitting power wirelessly to a remote device disposed in a space, comprising:

  • a transmitting unit adapted to direct radiation generally into said space, said transmitting unit comprising a gain medium having a front surface adapted to emit radiation generally towards said space, and a rear surface having a retro-reflector in optical association therewith; and

    a receiver unit associated with said device and adapted to receive radiation transmitted from said transmitting unit, and comprising a retro-reflector adapted to retro reflect a first portion of said radiation received from said transmitting unit back in the direction of said transmitting unit, such that said transmitting unit amplifies said radiation reflected back from said receiver unit and retransmits it in the direction of said receiver unit, and adapted to transmit a second portion of said radiation, such that it is utilized by said device.

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