Patents by Inventor Cheng-Lin Yang

Cheng-Lin Yang 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).

  • Publication number: 20180348373
    Abstract: A tracking device including an image sensor, a light source and a processor is provided. The image sensor senses reflected light or scattered light formed by the light source illuminating a work surface. The processor calculates a trace of the tracking device according to one of the reflected light and the scattered light that generates more apparent image features so as to increase the adaptable work surfaces.
    Type: Application
    Filed: December 14, 2017
    Publication date: December 6, 2018
    Inventors: Hui-Hsuan CHEN, Cheng-Lin YANG, Tzu-Yu CHEN
  • Patent number: 9778101
    Abstract: An optical detecting module includes a housing, a light emitting component, an optical detecting component and an optical signal collecting component. The light emitting component is disposed inside the housing. The optical detecting component is disposed inside the housing to receive an optical detecting signal generated by the light emitting component. The optical signal collecting component is utilized to hold the light emitting component for signal collection. The optical signal collecting component includes an output portion, a bottom portion and at least one lateral portion. The light emitting component is disposed on the bottom portion, and an optical positive signal of the optical detecting signal is projected out of the housing through the output portion. The lateral portion is bent from the bottom portion to reflect an optical lateral signal of the optical detecting signal, and the optical lateral signal is projected out of the housing through the output portion.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: October 3, 2017
    Assignee: PixArt Imaging Inc.
    Inventors: Cheng-Lin Yang, Hung-Ching Lai, Chi-Chih Shen
  • Publication number: 20170059397
    Abstract: An optical detecting module includes a housing, a light emitting component, an optical detecting component and an optical signal collecting component. The light emitting component is disposed inside the housing. The optical detecting component is disposed inside the housing to receive an optical detecting signal generated by the light emitting component. The optical signal collecting component is utilized to hold the light emitting component for signal collection. The optical signal collecting component includes an output portion, a bottom portion and at least one lateral portion. The light emitting component is disposed on the bottom portion, and an optical positive signal of the optical detecting signal is projected out of the housing through the output portion. The lateral portion is bent from the bottom portion to reflect an optical lateral signal of the optical detecting signal, and the optical lateral signal is projected out of the housing through the output portion.
    Type: Application
    Filed: December 29, 2015
    Publication date: March 2, 2017
    Inventors: Cheng-Lin Yang, Hung-Ching Lai, Chi-Chih Shen
  • Patent number: 8164042
    Abstract: Color filter arrays (CFA) and image sensors using same are provided. A color filter array includes a plurality of first color filter patterns respectively interlaced with a plurality of second color filter patterns, wherein the first and second color filter patterns comprise a plurality of color filters of at least three different colors of red (R), green (G) and blue (B) filters, and the first and second color filter patterns are not mirror symmetrical, and a blue (B) filter in one of the first color filter patterns is adjoined by a red (R) filter in one of the second color filter patterns adjacent thereto and/or a red (R) filter in one of the first color filter patterns is adjoined by a blue filter in one of the color filter patterns adjacent thereto.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: April 24, 2012
    Assignee: VisEra Technologies Company Limited
    Inventors: Chi-Xiang Tseng, Chin-Poh Pang, Cheng-Lin Yang, Wu-Chieh Liu
  • Patent number: 7897986
    Abstract: A microlens array is provided, including a base layer with a plurality of first microlenses formed over a first region thereof, wherein the first microlenses are formed with a first height. A plurality of second microlenses are formed over a second region of the base layer, wherein the second region surrounds the first region and the second microlenses are formed with a second height lower than the first height. A plurality of third microlenses are formed over a third region of the base layer, wherein the third region surrounds the second and three regions, and the microlenses are formed with a third height lower than the first and second heights.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: March 1, 2011
    Assignee: VisEra Technologies Company Limited
    Inventors: Wu-Chieh Liu, Chin-Poh Pang, Chi-Xiang Tseng, Cheng-Lin Yang
  • Publication number: 20100108866
    Abstract: Color filter arrays (CFA) and image sensors using same are provided. A color filter array includes a plurality of first color filter patterns respectively interlaced with a plurality of second color filter patterns, wherein the first and second color filter patterns comprise a plurality of color filters of at least three different colors of red (R), green (G) and blue (B) filters, and the first and second color filter patterns are not mirror symmetrical, and a blue (B) filter in one of the first color filter patterns is adjoined by a red (R) filter in one of the second color filter patterns adjacent thereto and/or a red (R) filter in one of the first color filter patterns is adjoined by a blue filter in one of the color filter patterns adjacent thereto.
    Type: Application
    Filed: November 6, 2008
    Publication date: May 6, 2010
    Inventors: Chi-Xiang TSENG, Chin-Poh PANG, Cheng-Lin YANG, Wu-Chieh LIU
  • Patent number: 7687757
    Abstract: A method for designing a microlens array on a pixel array is disclosed. A radial distance of each pixel from a central pixel in a pixel array is calculated, in which the central pixel acts as an origin of an X-Y coordinate. A chief ray angle of each pixel is determined according to the corresponding radial distance. A microlens shift with respect to the corresponding pixel is determined according to the corresponding chief ray angle. Each microlens shift combines an X-axis direction shift with a Y-axis direction shift, and the X-axis direction shift ratio is different from the Y-axis direction shift ratio. A plurality of microlenses is arranged according to the corresponding microlens shifts to form a microlens array on the pixel array.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: March 30, 2010
    Assignee: VisEra Technologies Company Limited
    Inventors: Chi-Xiang Tseng, Chin-Poh Pang, Cheng-Lin Yang, Wu-Chieh Liu
  • Publication number: 20090305453
    Abstract: A method for fabricating an image sensor device is disclosed. A substrate having a sensing area comprising a pixel array therein is provided. A photoresist layer is coated over the substrate. Exposure is performed on at least two regions of the photoresist layer by at least two binary half-tone masks, respectively, in which a first and second binary half-tone masks of the two binary half-tone masks have different optical transparency distributions. Development is performed on the exposed photoresist layer to form a convex microlens array corresponding to the pixel array of the sensing area and comprising at least two microlenses with different convex profiles.
    Type: Application
    Filed: June 10, 2008
    Publication date: December 10, 2009
    Inventors: Cheng-Lin YANG, Chin-Poh PANG, Wu-Chieh LIU, Chi-Xiang TSENG
  • Publication number: 20090261439
    Abstract: A microlens array is provided, including a base layer with a plurality of first microlenses formed over a first region thereof, wherein the first microlenses are formed with a first height. A plurality of second microlenses are formed over a second region of the base layer, wherein the second region surrounds the first region and the second microlenses are formed with a second height lower than the first height. A plurality of third microlenses are formed over a third region of the base layer, wherein the third region surrounds the second and three regions, and the microlenses are formed with a third height lower than the first and second heights.
    Type: Application
    Filed: April 17, 2008
    Publication date: October 22, 2009
    Inventors: Wu-Chieh Liu, Chin-Poh Pang, Chi-Xiang Tseng, Cheng-Lin Yang
  • Publication number: 20080198296
    Abstract: The invention provides a liquid crystal display device, backlight module and method for fabricating the same. The backlight module comprises a frame; a plurality of light-emitting diodes disposed on a bottom surface of the frame; and a mixing light plate disposed over the light-emitting diodes. The backlight module further comprises a diffusion plate disposed on the mixing light plate and a reflective layer formed on an inner sidewall and the bottom surface of the frame. The backlight module has a high luminous uniformity and efficiency by the mixing light plate.
    Type: Application
    Filed: June 6, 2007
    Publication date: August 21, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chang-Sheng Chu, Yu-Tang Li, Cheng-Lin Yang
  • Publication number: 20080151551
    Abstract: A lens cap and an LED package structure using the same are provided. The lens cap includes a cap body made of a transparent material for being covered on a point light source. The cap body includes a first incident surface, which is a curved surface raised on a inner side of the cap body and refracts light emitted by the point light source into the cap body. A reflective surface is formed the outer side of the cap body and is opposite to the first incident surface, wherein the reflective surface reflects the light refracted by the first incident surface. A light-transmitting surface is formed on the outer side of the cap body, and the light reflected by the reflective surface is projected onto the light-transmitting surface to exit the cap body. Thus, the light is emitted towards the lateral of the lens cap along a horizontal direction.
    Type: Application
    Filed: June 8, 2007
    Publication date: June 26, 2008
    Inventors: Cheng-Lin Yang, Shuang-Chao Chung
  • Patent number: 7347609
    Abstract: Direct backlight modules are provided. A direct backlight module includes a liquid crystal panel, a plurality of light tubes disposed below the liquid crystal panel, a reflecting plate disposed below the light tubes, and a transparent plate disposed between the light tubes and the liquid crystal panel. Additionally, a lens array is formed on one surface of the transparent plate facing the light tubes and a prism array is formed on the other surface of the transparent plate facing the liquid crystal panel.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: March 25, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Cheng-Lin Yang, Pong Lai, Huang-Chen Guo, Shuang-Chao Chung
  • Publication number: 20070085942
    Abstract: A sine-wave-like diffusion plate used in a backlight module of a liquid crystal display is provided. The diffusion plate is provided with an oppositely disposed first surface and second surface, and is used to receive and diffuse the light generated by a light source, and is characterized such, that the diffusion plate is provided with a sine-wave-like structure, optionally formed on the first surface and/or second surface.
    Type: Application
    Filed: May 26, 2006
    Publication date: April 19, 2007
    Inventors: Huang-Chen Guo, Wann-Diing Tyan, Cheng-Lin Yang, Ying-Tsung Lu, Pong Lai, Chang-Sheng Chu
  • Publication number: 20060050533
    Abstract: Direct backlight modules are provided. A direct backlight module includes a liquid crystal panel, a plurality of light tubes disposed below the liquid crystal panel, a reflecting plate disposed below the light tubes, and a transparent plate disposed between the light tubes and the liquid crystal panel. Additionally, a lens array is formed on one surface of the transparent plate facing the light tubes and a prism array is formed on the other surface of the transparent plate facing the liquid crystal panel.
    Type: Application
    Filed: December 8, 2004
    Publication date: March 9, 2006
    Inventors: Cheng-Lin Yang, Pong Lai, Huang-Chen Guo, Shuang-Chao Chung
  • Publication number: 20050141811
    Abstract: A tunable filter and its manufacturing method are disclosed. Interference of two laser beams defines the grating pattern required by the filter to make a micro grating with a period as small as several hundred nanometers on a polymer film. As the refractive index of the polymer film changes with the temperature, one can control the temperature to adjust the wavelengths of optical signals that the micro grating can reflect.
    Type: Application
    Filed: April 19, 2004
    Publication date: June 30, 2005
    Inventors: Cheng-Lin Yang, Ying-Tsung Lu