Patents by Inventor Liang-Tang Chen

Liang-Tang Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9261763
    Abstract: A pico projection fixing module includes a bracket main body, plural color light sources, and plural collimator lenses. The bracket main body includes plural assembling seats. The plural assembling seats are arranged side by side. Each of the plural assembling seats includes a first assembling part and a second assembling part beside the corresponding first assembling part. The plural color light sources are installed on the first assembling parts of the plural assembling seats, respectively. The plural collimator lenses are installed on the second assembling parts of the plural assembling seats and aligned with the plural color light sources, respectively. Moreover, plural color light beams from the plural color light sources are projected out through the corresponding collimator lenses. Moreover, plural concave spaces are arranged around bottoms of the plural second assembling parts, respectively, wherein the plural concave spaces are separated from each other.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: February 16, 2016
    Assignee: LITE-ON TECHNOLOGY CORPORATION
    Inventors: Chi-Feng Chiang, Chuan Lee, Wei-Chih Lin, Fu-Ji Tsai, Liang-Tang Chen, Chih-Hao Lin, Wen-Chun Hsu, Chen-I Kuo
  • Publication number: 20150288937
    Abstract: A projection device is provided. The projection device includes a first laser source, a second laser source, a beam combiner, and an imaging unit. The first laser source emits a first light beam. The second laser source emits a second light beam. The beam combiner is made of a birefringent material and has a light receiving surface. The first and second light beams enter the light receiving surface. The first and second light beams are combined into a combined light beam after passing through the beam combiner. The imaging unit processes the combined light beam to generate a projection image.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 8, 2015
    Applicant: LITE-ON TECHNOLOGY CORPORATION
    Inventors: Fu-Ji TSAI, Liang-Tang CHEN
  • Publication number: 20150185593
    Abstract: A pico projection fixing module includes a bracket main body, plural color light sources, and plural collimator lenses. The bracket main body includes plural assembling seats. The plural assembling seats are arranged side by side. Each of the plural assembling seats includes a first assembling part and a second assembling part beside the corresponding first assembling part. The plural color light sources are installed on the first assembling parts of the plural assembling seats, respectively. The plural collimator lenses are installed on the second assembling parts of the plural assembling seats and aligned with the plural color light sources, respectively. Moreover, plural color light beams from the plural color light sources are projected out through the corresponding collimator lenses. Moreover, plural concave spaces are arranged around bottoms of the plural second assembling parts, respectively, wherein the plural concave spaces are separated from each other.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 2, 2015
    Applicant: LITE-ON IT CORPORATION
    Inventors: Chi-Feng Chiang, Chuan Lee, Wei-Chih Lin, Fu-Ji Tsai, Liang-Tang Chen, Chih-Hao Lin, Wen-Chun Hsu, Chen-I Kuo
  • Publication number: 20090067175
    Abstract: A lens for use with a light-emitting element includes a lens body that has a bottom surface for receiving light from the light-emitting element, a top surface opposite to the bottom surface along an optical axis, a peripheral surface extending and converging from the bottom surface to the top surface such that a projection of a perimeter of the top surface onto a plane of the bottom surface is surrounded by a perimeter of the bottom surface, and a textured structure formed on the top surface for scattering light that exits the top surface at angles relative to the optical axis.
    Type: Application
    Filed: November 14, 2008
    Publication date: March 12, 2009
    Applicant: Bright LED Electronics Corp.
    Inventors: Liang-Tang Chen, Ming-Li Chang, Chou-Chih Yin
  • Publication number: 20070217195
    Abstract: A lens includes a lens body having a bottom surface, a reflective surface, and a refractive surface. The bottom surface is to be disposed proximate to a light-emitting component. The reflective surface is disposed opposite to the bottom surface along a lens axis, and reflects a first portion of the light provided by the light-emitting component that is incident thereon toward the refractive surface. The refractive surface extends from an edge of the reflective surface to the bottom surface, and refracts a second portion of the light provided by the light-emitting component that is incident thereon as well as the first portion of the light reflected by the reflective surface theretoward in sideward directions relative to the light-emitting component. The lens body has cross-sections transverse to the lens axis, sizes of which increase gradually from a junction of the reflective surface and the refractive surface toward the bottom surface.
    Type: Application
    Filed: January 4, 2007
    Publication date: September 20, 2007
    Applicant: BRIGHT LED ELECTRONICS CORP.
    Inventors: Yen-Cheng Chen, Ching-Lin Tseng, Liang-Tang Chen, Chung-Kai Wang, Ming-Li Chang