OPTICAL PROJECTION SYSTEM AND ENERGY CONTROL METHOD THEREFOR
First Claim
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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Accused Products
Abstract
An optical projection system includes a light source module, an optical engine, a thermoelectric generator, a storage unit, a plurality of electronic devices, and a selection unit. The light source module is capable of emitting at least one light beam, and the optical engine receives the light beam and modulates the light beam according to at least one image signal to form an image beam. The thermoelectric generator absorbs heat in the optical projection system and converts the heat into electrical energy, and the storage unit stores the electrical energy. The electronic devices receive the electrical energy stored in the storage unit and have at least two different threshold voltages. The selection unit selectively turns on at least one of electronic devices according to a state of charge of the storage unit.
27 Citations
16 Claims
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1. An optical projection system, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An energy control method for an optical projection system, the optical projection system comprising multiple electronic devices with at least two different threshold voltages or power consumption levels, the energy control method comprising the steps of:
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converting heat in the optical projection system into electrical energy and storing the electrical energy in a storage unit; and selectively turning on at least one of the electronic devices according to a state of charge of the storage unit. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification