Illumination system with multiple lamps
AssigneeDelta Electronics, Inc.
InventorSean Chang
Life of this patent
Estimating the term…
Abstract
An illumination system with multiple lamps is provided for increasing the Lumens of projected images. In the system, light guiding means having at least two light tunnels and lamps are used for guiding light emitted from the lamps to a beam splitter so that the light beams from the different lamps are converged into one single light beam, thereby increasing the power of light.
Claims20
An illumination system with multiple lamps, comprising:
- a beam splitter having a beam reflecting surface located on one side and a light output surface located on another side thereof;
- and
- two light guiding means respectively disposed at the rest two sides of the beam splitter, each light guiding means comprising:
- a lamp;
- and
- a light tunnel having an end reflecting surface closed to one side of the lamp and the other end of the light tunnel being connected to the beam splitter, the end reflecting surface having an incident aperture;
- wherein light emitted from each lamp is converged to the end reflecting surface of the corresponding light tunnel and enters into the corresponding light tunnel through the incident aperture, and then the lights is outputted to the beam splitter located on the other side of the corresponding light tunnel and finally is outputted through the light output surface of the beam splitter.
The illumination system with multiple lamps of claim 11, wherein incident angles of the light guided into the light tunnel are smaller than the full reflection critical angle in the light tunnel.
All illumination system with multiple lamps, comprising:
- a beam splitter having a light output surface located on one side thereof;
- and
- three light guiding means respectively disposed on the rest three sides of the beam splitter, each light guiding means including:
- a lamp;
- and
- a light tunnel having an end reflecting surface closed to one side of the lamp and the other end of the light tunnel being connected to the beam splitter, the end reflecting surface having an incident aperture;
- wherein light emitted from each lamp is converged to the end reflecting surface of one corresponding light tunnel and enter into the corresponding light tunnel through the incident aperture, and then the lights is outputted to the beam splitter located on the other side of the corresponding light tunnel and finally is outputted through the optical output surface of the beam splitter.
Dependencies are inferred from the claim text.