The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6715901 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 06, 2004

Filed:

Mar. 31, 2003
Applicant:
Inventor:

Shi-Hwa Huang, Taipei Hsien, TW;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 2/900 ; G03B 2/100 ;
U.S. Cl.
CPC ...
F21V 2/900 ; G03B 2/100 ;
Abstract

An image projector system includes a light source, a light-modulating device, and a projector lens set. The light source includes a rectangular housing formed with a light-transmissive output port and at least four light-transmissive input ports, at least four light emitting diode modules, and a mirror set mounted in the housing for directing light beam outputs of the light emitting diode modules that are transmitted into the housing through the light-transmissive input ports to pass through the light-transmissive output port for processing by the light-modulating device. The light beam output of each of the light emitting diode modules has a wavelength band within a range of from 400 to 700 nanometers, that is different from the other light emitting diode modules and that has a center wavelength spaced apart from that of the other light emitting diode modules by at least 20 nanometers.


Find Patent Forward Citations

Huang, Shi-Hwa. (2004). Image projector system having a light source that includes at least four light emitting diode modules (U.S. Patent No. 6715901). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6715901

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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