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OPTICAL PROJECTION SYSTEM AND ENERGY CONTROL METHOD THEREFOR

  • US 20150319397A1
  • Filed: 01/27/2015
  • Published: 11/05/2015
  • Est. Priority Date: 04/30/2014
  • Status: Active Grant
First Claim
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1. An optical projection system, comprising:

  • a light source module capable of emitting at least one light beam;

    an optical engine for receiving the light beam and modulating the light beam according to at least one image signal to form an image beam;

    a thermoelectric generator for absorbing heat in the optical projection system and converting the heat into electrical energy;

    a storage unit for storing the electrical energy;

    a plurality of electronic devices for receiving the electrical energy stored in the storage unit, wherein the electronic devices have at least two different threshold voltages; and

    a selection unit for selectively turning on at least one of the electronic devices according to a state of charge of the storage unit.

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