Patents by Inventor Zeqin Wang

Zeqin Wang 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: 20210318602
    Abstract: The present disclosure provides a light source system and a projection device. The light source system includes: a laser light source, a supplementary light source, a wavelength conversion device and an imaging subsystem. The laser light source is configured to emit laser light. The supplementary light source is configured to emit supplementary light. The wavelength conversion device is configured to convert the laser light into excited light and output first light including the excited light and the laser light. The imaging subsystem is configured to form a first light imaging beam, a supplementary light imaging beam, and a mixed light imaging beam; the imaging subsystem includes a light combining device and a reflective assembly, the light combining device is placed at an intersection of the first light imaging beam and the supplementary light imaging beam, and the reflective assembly is placed between the wavelength conversion device and the light combining device.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 14, 2021
    Inventors: Zuqiang Guo, Peng Du, Zeqin Wang, Yi Li
  • Patent number: 10863167
    Abstract: A stereoscopic image projection device and stereoscopic display glasses include a light source system for sequentially generating a first broad spectrum light and a second broad spectrum light; a light splitter for splitting the first broad spectrum light into a first wavelength light and a second wavelength light, each having different wavelengths, and splitting the second broad spectrum light into a third wavelength light and a fourth wavelength light, each having different wavelengths; and a controller for simultaneously controlling the first wavelength light to display a corresponding color in a left-eye image and the second wavelength light to display a corresponding color in a right-eye image, and simultaneously controlling the third wavelength light to display a corresponding color in the left-eye image and the fourth wavelength light to display a corresponding color in the right-eye image.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 8, 2020
    Assignee: Appotronics Corporation Limited
    Inventor: Zeqin Wang
  • Patent number: 10554938
    Abstract: A light source system including: a light source device emitting excitation light; an light output device receiving the excitation light and converting it into converted light, wherein the light output device includes at least two different wavelength conversion materials, the converted light of at least one wavelength conversion material being a multi-color light; a light splitting and combining device splitting the multi-color light into a first and a second color light propagating respectively along a first and a second optical channel, wherein the first and second color lights have different wave spectrum coverage ranges; and a first and a second light modulation device respectively modulating the light propagating over the first and second optical channels, wherein the light of three primary colours can be allocated to two DMDs for processing. This results in improved colour gamut of the light source and the light efficiency and reliability of the system.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: February 4, 2020
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Zuqiang Guo, Zeqin Wang
  • Patent number: 10466580
    Abstract: A projection system includes a light source system that has a first light source for emitting first light, and a rotating color wheel that has at least a first fluorescent color band to absorb the first light and generate second light, and a second fluorescent color band to absorb the first light and generate compensation light. A light splitting device sequentially splits the first and second lights into light travelling along first and second light paths respectively. A first light modulation device modulates the light travelling along the first light path, and a second light modulation device for modulating the light travelling along the second light path. The first light is a primary light, the second light is a wide-spectrum light comprising at least two kinds of primary light, and a combined light of the first light and the second light comprises light of three primary colors.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: November 5, 2019
    Assignee: Appotronics Corporation Limited
    Inventors: Zuqiang Guo, Zeqin Wang
  • Patent number: 10291887
    Abstract: A projection system and a control method therefor. The projection system includes: a light source assembly generating three primary color lights capable of being adjusted separately, and a light modulation assembly for modulating the three primary color lights. The method includes: based on the maximum greyscale value of each primary color image in each frame of source images, determining a greyscale adjustment ratio of at least one primary color image; based on the greyscale adjustment ratio, correspondingly adjusting the greyscale value of the primary color image; and based on the adjusted greyscale value of each primary color image and the output power of a primary color light corresponding to the primary color image, controlling the power-on duration of the light modulation assembly, so that the greyscale brightness of each primary color image of display images formed by the light modulation assembly is improved in the same proportion.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: May 14, 2019
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Zuqiang Guo, Zeqin Wang
  • Publication number: 20190113834
    Abstract: A projection system includes a light source system that has a first light source for emitting first light, and a rotating color wheel that has at least a first fluorescent color band to absorb the first light and generate second light, and a second fluorescent color band to absorb the first light and generate compensation light. A light splitting device sequentially splits the first and second lights into light travelling along first and second light paths respectively. A first light modulation device modulates the light travelling along the first light path, and a second light modulation device for modulating the light travelling along the second light path. The first light is a primary light, the second light is a wide-spectrum light comprising at least two kinds of primary light, and a combined light of the first light and the second light comprises light of three primary colors.
    Type: Application
    Filed: December 13, 2018
    Publication date: April 18, 2019
    Inventors: Zuqiang Guo, Zeqin Wang
  • Patent number: 10184641
    Abstract: A light emitting device includes a light source module comprising an excitation light source for emitting exciting light and a compensation light source for emitting compensation light; and a color wheel component, comprising at least one segmented region distributed in a motion direction of the color wheel component. The color wheel component emits the compensation light and first light that comprises at least one beam of excited light under irradiation of the excitation light source and the compensation light source. The compensation light spectrally overlaps the at least one beam of excited light in the first light, and the compensation light and the excited light spectrally overlapping the compensation light are simultaneously emitted and are independently adjustable. A projection system comprising a light emitting device is further provided.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: January 22, 2019
    Assignee: Appotronics Corporation Limited
    Inventors: Zeqin Wang, Yi Li, Zuqiang Guo
  • Patent number: 10168610
    Abstract: A projection system includes a light source system for generating a first light beam in a first timing sequence and for generating a second light beam in a second timing sequence, the first light beam comprising a first light and a first compensation light, and the second light beam comprising a second light or comprising the second light and a first compensation light. A light splitting device sequentially divides the first light beam and the second light beam into a light transmitting along a first light path and a light transmitting along a second light path. A first light modulating device modulates the light travelling along the first light path, and a second light modulating device modulates the light travelling along the second light path. The first light or the second light is compensated by the first compensation light to have a wider color gamut of a synthesized color image.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: January 1, 2019
    Assignee: Appotronics Corporation Limited
    Inventors: Zuqiang Guo, Zeqin Wang
  • Patent number: 10139713
    Abstract: A light source system includes an excitation light source emitting excitation light in at least first and second time intervals; a compensation light source emitting compensation light in at least third time intervals, the compensation light including laser light of at least one color; and a rotating color wheel, including at least first and second regions, the first region generating light of at least two different colors in time sequence under irradiation of the excitation light in the first and second time sequences, and the second region transmitting the compensation light in at least the third time sequence. The light of the at least two different colors includes at least one type of wide-spectrum fluorescence, and the laser compensates for the fluorescence or light split from the fluorescence. The compensation light is directly transmitted without being irradiated upon fluorescent powder, so scattering loss of the compensation light is reduced.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: November 27, 2018
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Zuqiang Guo, Zeqin Wang, Fei Hu
  • Patent number: 10134317
    Abstract: Provided is a projection device, comprising a light-emitting apparatus, a spatial light modulator, a pixel shifting apparatus, a projection lens, and a control processor; the light-emitting apparatus comprises an excitation light source, a colored-light generating apparatus, and a drive apparatus; the control processor is separately connected to the drive apparatus, the light source, the spatial light modulator, and the pixel shifting apparatus, and is used for: controlling the frequency of periodic motion of the drive apparatus; while the drive apparatus moves the conversion area of the colored-light generating apparatus to pass across the position illuminated by the excitation light, shutting off the light source or controlling the spatial light modulator to enter a non-projecting state. No light passes through the pixel shifting apparatus when it is changing states, thus it is prevented from affecting the contrast. Also provided are a projection control system and a projection control method.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: November 20, 2018
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Yi Li, Zeqin Wang
  • Patent number: 10114277
    Abstract: A light source system and a projection system, comprising a light source; a switching system switching light emitted by the light source into at least two light beams having a preset proportion in the manner of time division or light intensity division; a color wheel assembly located in a transmission light path of each light beam of the at least two light beams, with the color wheel assembly generating light having different colors and a preset proportion under the irradiation of each light beam of the at least two light beams, and light of different colors being able to synthesize a projection image after being modulated by a light modulation system, wherein the switching system can adjust the proportion of the at least two light beams according to the parameters of the projection image, so as to adjust the proportion of the light of different colors.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: October 30, 2018
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Zuqiang Guo, Zeqin Wang
  • Patent number: 10110861
    Abstract: A light source system and projection system, the light source system comprising: a first light source (1) producing first wide spectrum light, a second light source (103) producing second wavelength light, a light splitting and light combining device (2) used to split and combine light, a first spatial light modulator (106), a second spatial light modulator (107), and a control device (108) controlling the first light source (1) and the second light source (103) and modulating the first spatial light modulator (106) and the second spatial light modulator (107). The projection system comprises the light source system. The light source system and projection system have high brightness and wide color gamut, effectively eliminating rainbow effect, and also have a simple structure and low cost.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: October 23, 2018
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Yi Li, Hong Ye, Zeqin Wang
  • Publication number: 20180129123
    Abstract: A light source system and a projection system. The light source system comprises: an excitation light source (101) for emitting excitation light in at least a first time sequence and a second time sequence; a compensation light source (102) for emitting compensation light in at least a third time sequence, the compensation light emitted by the compensation light source (102) comprising laser of at least one color; and a rotating color wheel (103), comprising at least a first region (201) and a second region (202), wherein the first region (201) generates light of at least two different colors in time sequence under the irradiation of the excitation light in the first time sequence and the second time sequence, and the second region (202) is used for transmitting the compensation light in at least the third time sequence.
    Type: Application
    Filed: April 5, 2016
    Publication date: May 10, 2018
    Applicant: Appotronics Corporation Limited
    Inventors: Zuqiang GUO, Zeqin WANG, Fei HU
  • Publication number: 20180080630
    Abstract: A light emitting device includes a light source module comprising an excitation light source for emitting exciting light and a compensation light source for emitting compensation light; and a color wheel component comprising at least one segmented region distributed in a motion direction of the color wheel component. The color wheel component emits the compensation light and first light that comprises at least one beam of excited light under irradiation of the excitation light source and the compensation light source. The compensation light spectrally overlaps the at least one beam of excited light in the first light, and the compensation light and the excited light spectrally overlapping the compensation light are simultaneously emitted and are independently adjustable. A projection system comprising a light emitting device is further provided.
    Type: Application
    Filed: April 5, 2016
    Publication date: March 22, 2018
    Inventors: Zeqin Wang, Yi Li, Zuqiang Guo
  • Patent number: 9900564
    Abstract: A light source system and a projection display device comprising the light source system. The light source system comprises at least three light sources (10, 20, 30) used for generating at least two wide-spectrum light beams, a light splitting and combining device (40), and at least two spatial light modulators, i.e. a first spatial light modulator (50) and a second spatial light modulator (60), wherein a first wide-spectrum light beam and a second wide-spectrum light beam generate light with two colors and at least four primary wavelengths after being split by the light splitting and combining device (40), thereby expanding the color gamut range and improving the quality of image display. In addition, using two spatial light modulators to modulate light simultaneously takes account of the costs of products while guaranteeing the image display quality.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: February 20, 2018
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Yi Li, Hong Ye, Zeqin Wang
  • Publication number: 20180041738
    Abstract: A projection system and a control method therefor. The projection system includes: a light source assembly generating three primary color lights capable of being adjusted separately, and a light modulation assembly for modulating the three primary color lights. The method includes: based on the maximum greyscale value of each primary color image in each frame of source images, determining a greyscale adjustment ratio of at least one primary color image; based on the greyscale adjustment ratio, correspondingly adjusting the greyscale value of the primary color image; and based on the adjusted greyscale value of each primary color image and the output power of a primary color light corresponding to the primary color image, controlling the power-on duration of the light modulation assembly, so that the greyscale brightness of each primary color image of display images formed by the light modulation assembly is improved in the same proportion.
    Type: Application
    Filed: January 28, 2016
    Publication date: February 8, 2018
    Applicant: APPOTRONICS CHINA CORPORATION
    Inventors: Zuqiang GUO, Zeqin WANG
  • Publication number: 20180033357
    Abstract: Provided is a projection device, comprising a light-emitting apparatus, a spatial light modulator, a pixel shifting apparatus, a projection lens, and a control processor; the light-emitting apparatus comprises an excitation light source, a colored-light generating apparatus, and a drive apparatus; the control processor is separately connected to the drive apparatus, the light source, the spatial light modulator, and the pixel shifting apparatus, and is used for: controlling the frequency of periodic motion of the drive apparatus; while the drive apparatus moves the conversion area of the colored-light generating apparatus to pass across the position illuminated by the excitation light, shutting off the light source or controlling the spatial light modulator to enter a non-projecting state. No light passes through the pixel shifting apparatus when it is changing states, thus it is prevented from affecting the contrast. Also provided are a projection control system and a projection control method.
    Type: Application
    Filed: January 28, 2016
    Publication date: February 1, 2018
    Applicant: APPOTRONICS CHINA CORPORATION
    Inventors: Yi LI, Zeqin WANG
  • Publication number: 20170371236
    Abstract: A light source system and a projection system, comprising a light source; a switching system switching light emitted by the light source into at least two light beams having a preset proportion in the manner of time division or light intensity division; a color wheel assembly located in a transmission light path of each light beam of the at least two light beams, with the color wheel assembly generating light having different colors and a preset proportion under the irradiation of each light beam of the at least two light beams, and light of different colors being able to synthesize a projection image after being modulated by a light modulation system, wherein the switching system can adjust the proportion of the at least two light beams according to the parameters of the projection image, so as to adjust the proportion of the light of different colors.
    Type: Application
    Filed: January 20, 2016
    Publication date: December 28, 2017
    Applicant: APPOTRONICS CHINA CORPORATION
    Inventors: Zuqiang GUO, Zeqin WANG
  • Publication number: 20170329214
    Abstract: A projection system includes a light source system for generating a first light beam in a first timing sequence and for generating a second light beam in a second timing sequence, the first light beam comprising a first light and a first compensation light and the second light beam comprising a second light or comprising the second light and a first compensation light. A light splitting device sequentially divides the first light beam and the second light beam into a light transmitting along a first light path and a light transmitting along a second light path. A first light modulating device modulates the light travelling along the first light path, and a second light modulating device modulates the light travelling along the second light path. The first light or the second light is compensated by the first compensation light to have a wider color gamut of a synthesized color image.
    Type: Application
    Filed: December 2, 2015
    Publication date: November 16, 2017
    Inventors: Zuqiang Guo, Zeqin Wang
  • Publication number: 20170264889
    Abstract: A stereoscopic image projection device and stereoscopic display glasses include a light source system for sequentially generating a first broad spectrum light and a second broad spectrum light; a light splitter for splitting the first broad spectrum light into a first wavelength light and a second wavelength light, each having different wavelengths, and splitting the second broad spectrum light into a third wavelength light and a fourth wavelength light, each having different wavelengths; and a controller for simultaneously controlling the first wavelength light to display a corresponding color in a left-eye image and the second wavelength light to display a corresponding color in a right-eye image, and simultaneously controlling the third wavelength light to display a corresponding color in the left-eye image and the fourth wavelength light to display a corresponding color in the right-eye image.
    Type: Application
    Filed: August 19, 2015
    Publication date: September 14, 2017
    Inventor: Zeqin Wang