Patents by Inventor Po-Liang Chiang
Po-Liang Chiang 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).
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Patent number: 11456324Abstract: An image sensor package includes a plastic packaging structure; and a transparent plastic window disposed in the plastic packaging structure, wherein material of the transparent plastic window includes plastic and an additive, and the additive is selected from the group consisting of germanium, silicon, potassium bromide, potassium chloride, sodium chloride, zinc sulfide, and zinc selenide.Type: GrantFiled: May 21, 2020Date of Patent: September 27, 2022Assignee: SPRING RAINBOW OPTICS CO., LTDInventor: Po-Liang Chiang
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Publication number: 20220254825Abstract: A thermal sensor module is disclosed and includes a substrate; a thermal sensor disposed on the substrate; an inner package structure disposed on the substrate, surrounding the thermal sensor, and encapsulating the thermal sensor together with the substrate; wherein the inner package structure includes an inner top window; an outer package structure disposed on the substrate, surrounding the inner package structure, and packaging the thermal sensor together with the substrate; wherein the outer package structure includes an outer top window; wherein an orthographic projection of the inner top window projected on the substrate at least partially covers the thermal sensor, and an orthographic projection of the outer top window projected on the substrate at least partially covers the orthographic projection of the inner top window projected on this substrate.Type: ApplicationFiled: February 9, 2022Publication date: August 11, 2022Inventors: SHIH-HAN CHEN, PO-LIANG CHIANG
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Patent number: 11327268Abstract: A camera module includes a lens assembly, a holder, and a thermal deformable material. The lens assembly includes at least one lens and a lens barrel, wherein the lens barrel includes a wall surrounding a central axis of the lens assembly to define a receiving chamber, and the lens is disposed in the receiving chamber. The holder surrounds the lens barrel and supports the lens assembly. The thermal deformable material is disposed between an outer wall of the lens barrel and an inner wall of the holder.Type: GrantFiled: August 19, 2019Date of Patent: May 10, 2022Assignee: SPRING RAINBOW OPTICS CO., LTDInventors: Po-Liang Chiang, Yu-Teng Jheng
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Patent number: 10884318Abstract: A camera module includes a lens assembly, a propulsion device, and a deformable. The propulsion device is configured for distally and proximally driving the lens assembly. The deformable lens is deformed, and a focal length of the deformable lens is changed in response to a pressure applied onto the deformable lens by the lens assembly distally driven by the propulsion device. The deformable lens remains undeformed, and the focal length of the deformable lens remains constant in response to no pressure applied onto the deformable lens.Type: GrantFiled: August 23, 2018Date of Patent: January 5, 2021Assignee: SPRING RAINBOW OPTICS CO., LTDInventors: Po-Liang Chiang, Yu-Teng Jheng
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Patent number: 10871262Abstract: A structured light illumination module is provided and includes a light source including a laser diode and configured for emitting light; an optical element including a light transmissive part which receives light and allows collimated light to pass, and a total internal reflection part, wherein an angle ? between a reflective surface of the total internal reflection part and an optical axis of the optical element is configured for totally internally reflecting a part of the light by the reflective surface; a diffractive component configured for converting the light into a structured light pattern; and an energy recycling mechanism disposed on at least a part of an incident surface or an emergent surface of the optical element.Type: GrantFiled: October 29, 2018Date of Patent: December 22, 2020Assignee: SPRING RAINBOW OPTICS CO., LTDInventors: Po-Liang Chiang, Yu-Teng Jheng
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Publication number: 20200373342Abstract: An image sensor package includes a plastic packaging structure; and a transparent plastic window disposed in the plastic packaging structure, wherein material of the transparent plastic window includes plastic and an additive, and the additive is selected from the group consisting of germanium, silicon, potassium bromide, potassium chloride, sodium chloride, zinc sulfide, and zinc selenide.Type: ApplicationFiled: May 21, 2020Publication date: November 26, 2020Inventor: Po-Liang Chiang
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Publication number: 20200064581Abstract: A camera module includes a lens assembly, a holder, and a thermal deformable material. The lens assembly includes at least one lens and a lens barrel, wherein the lens barrel includes a wall surrounding a central axis of the lens assembly to define a receiving chamber, and the lens is disposed in the receiving chamber. The holder surrounds the lens barrel and supports the lens assembly. The thermal deformable material is disposed between an outer wall of the lens barrel and an inner wall of the holder.Type: ApplicationFiled: August 19, 2019Publication date: February 27, 2020Inventors: PO-LIANG CHIANG, YU-TENG JHENG
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Publication number: 20190187340Abstract: A lens assembly module is provided and includes: a plurality of lenses, a lens barrel disposed around the lens and including an incident end, where light from the object enters the lens barrel, and an emergent end, where light from the object exits the lens barrel; and a first light shielding film disposed in a mounting recess, which is defined by a surface of one of the lenses closest to the emergent end and is adjacent to a circumference of the lens closest to the emergent end.Type: ApplicationFiled: December 17, 2018Publication date: June 20, 2019Inventors: Yu-Teng Jheng, Po-Liang Chiang, Ming-Chun Chen, Yung-Lieh Chang, Hung-Chang Cho, Pei-Min Chen, Hsieh-Chang Liu
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Publication number: 20190128485Abstract: A structured light illumination module is provided and includes a light source including a laser diode and configured for emitting light; an optical element including a light transmissive part which receives light and allows collimated light to pass, and a total internal reflection part, wherein an angle ? between a reflective surface of the total internal reflection part and an optical axis of the optical element is configured for totally internally reflecting a part of the light by the reflective surface; a diffractive component configured for converting the light into a structured light pattern; and an energy recycling mechanism disposed on at least a part of an incident surface or an emergent surface of the optical element.Type: ApplicationFiled: October 29, 2018Publication date: May 2, 2019Inventors: PO-LIANG CHIANG, YU-TENG JHENG
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Publication number: 20190064634Abstract: A camera module includes a lens assembly, a propulsion device, and a deformable. The propulsion device is configured for distally and proximally driving the lens assembly. The deformable lens is deformed, and a focal length of the deformable lens is changed in response to a pressure applied onto the deformable lens by the lens assembly distally driven by the propulsion device. The deformable lens remains undeformed, and the focal length of the deformable lens remains constant in response to no pressure applied onto the deformable lens.Type: ApplicationFiled: August 23, 2018Publication date: February 28, 2019Inventors: Po-Liang Chiang, Yu-Teng Jheng
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Patent number: 7237900Abstract: A polarization conversion system suited for LCD or LCoS-based projection applications is disclosed. The present invention polarization conversion system encompasses a light pipe with a rectangular light tunnel therein defined by four side reflection mirrors. A front reflection with an aperture thereon is mounted on an entrance face of the light pipe. A first polarization beam splitter is mounted on an exit face of the light pipe. A retardation plate, which is perpendicular to the exit face, is situated atop the first polarization beam splitter. A reflection mirror is situated atop the retardation plate. A second polarization beam splitter is mounted under the first polarization beam splitter and is opposite to the retardation plate.Type: GrantFiled: December 30, 2004Date of Patent: July 3, 2007Assignee: United Microdisplay Optronics Corp.Inventors: Ci Guang Peng, Hsin Wen Tsai, Po Liang Chiang, Yi Wei Liu, Hsueh-Chen Chang
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Publication number: 20070040996Abstract: A projector includes an invisible light addressing unit, a light synthesizing plane, a visible light valve, and a projection lens. The invisible light addressing unit includes a sequentially-controlled light shifter able to generate a plurality of addressed invisible sub beams sequentially. The visible light valve can be turned on by the addressed invisible sub beams to allow a visible light source to go through, thereby generating a plurality of visible beams.Type: ApplicationFiled: August 18, 2006Publication date: February 22, 2007Inventors: Ho Lu, Po Liang Chiang, Chao-Hsuan Huang, Yi Wei Liu
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Publication number: 20060146289Abstract: An optical system utilizing a unique polarizer separating plate to replace conventional PBS prism is disclosed. The optical system of this invention, which may be applied to projection display apparatuses such as rear projection type televisions, includes an illumination system for generating a homogeneous light beam, a polarizer separating plate comprising a polarization separation surface that splits the light beam into a first polarized light beam with a first polarization status and a second polarized light beam with a second polarization status, wherein the first polarized light beam propagates through a first aberration compensation lens to a first panel, and a second polarized light beam propagates through a second aberration compensation lens to a second panel. According to one embodiment, the polarizer separating plate includes two sheets of glass substrates having the same thickness and the polarization separation surface is sandwiched by the two sheets of glass substrates.Type: ApplicationFiled: December 30, 2004Publication date: July 6, 2006Inventors: Po Liang Chiang, Yi Wei Liu, Hsin Wen Tsai, Hsueh-Chen Chang, Ci Guang Peng
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Publication number: 20060146288Abstract: A polarization conversion system suited for LCD or LCoS-based projection applications is disclosed. The present invention polarization conversion system encompasses a light pipe with a rectangular light tunnel therein defined by four side reflection mirrors. A front reflection with an aperture thereon is mounted on an entrance face of the light pipe. A first polarization beam splitter is mounted on an exit face of the light pipe. A retardation plate, which is perpendicular to the exit face, is situated atop the first polarization beam splitter. A reflection mirror is situated atop the retardation plate. A second polarization beam splitter is mounted under the first polarization beam splitter and is opposite to the retardation plate.Type: ApplicationFiled: December 30, 2004Publication date: July 6, 2006Inventors: Ci Guang Peng, Hsin Wen Tsai, Po Liang Chiang, Yi Wei Liu, Hsueh-Chen Chang
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Patent number: 7050679Abstract: The present invention relates to an optically integrated device, and more particularly, to an optically integrated device with low light loss. The optically integrated device includes an optical condenser to condense the light before the light enters an optical integrator. A color filter is attached on the optical integrator to filter through a portion of the light, and reflect the other portion of the light into the optical integrator. The optically integrated device recycles the reflected light inside the optical integrator to prevent the light loss.Type: GrantFiled: September 3, 2003Date of Patent: May 23, 2006Assignee: United Microelectronics Corp.Inventors: Po-Liang Chiang, Hsin-Wen Tsai
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Publication number: 20060082693Abstract: A bevel gradient dichroic film for an off-axis liquid crystal on silicon display device is provided. The bevel gradient dichroic film includes a dichroic film, the dichroic film having a film characteristic, and the film characteristic of the dichroic film including a gradient direction. The gradient direction is dependent on an incident angle of an incident light so that a light spot of the incident light on the dichroic film has a light characteristic being uniformly distributed.Type: ApplicationFiled: December 1, 2005Publication date: April 20, 2006Inventors: Cheng-Yu Huang, Yi-Wei Liu, Po-Liang Chiang
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Patent number: 7016572Abstract: The present invention relates to an optically integrated device, and more particularly, to an optically integrated device with low light loss. A color filter is attached to an optical integrator to filter through a portion of the light, and reflect the other portion of the light back to the optical integrator. The optically integrated device recycles the reflected light inside the optical integrator to prevent light loss.Type: GrantFiled: September 3, 2003Date of Patent: March 21, 2006Assignee: United Microelectronics Corp.Inventors: Po-Liang Chiang, Hsin-Wen Tsai
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Publication number: 20060045456Abstract: This invention provides a polarization conversion light pipe device suited for LCD- or LCoS-based projection applications. The polarization conversion light pipe device encompasses a light tunnel defined by four side reflection mirrors with a rectangular cross section. The light tunnel has a light entrance face at one end and a light exit face at the other end. A front reflection mirror having an aperture thereon is mounted on the light entrance face. A retardation plate for rotating the direction of an electric field of a polarized light beam is situated in the light tunnel. A polarization beam splitter module is situated between the exit face of the light tunnel and the retardation plate. The polarization beam splitter module has a reflective polarization beam splitting surface that is substantially 45 degree-inclined with respect to one of the side reflection mirrors.Type: ApplicationFiled: August 30, 2004Publication date: March 2, 2006Inventors: Po Liang Chiang, Yi Wei Liu, Hsin Wen Tsai, Hsueh Chen Chang, Ci Guang Peng
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Publication number: 20060023167Abstract: An illumination system suited for projection display applications is disclosed. The illumination system according to this invention includes a red light-emitting diode (R-LED) light source array, a green light-emitting diode (G-LED) light source array, and a blue light-emitting diode (B-LED) light source array. In one preferred embodiment, the R/G/B-LED light source arrays are coupled to different sides of an x-cube component. Light beams emanated from respective light source arrays are combined by the x-cube component, thereby generating a white-light source for display purposes.Type: ApplicationFiled: January 21, 2005Publication date: February 2, 2006Inventors: Po Liang Chiang, Hsueh-Chen Chang, Ci Guang Peng, Yi Wei Liu, Hsin Wen Tsai
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Publication number: 20050275761Abstract: A rear projection type television having an improved projection lens system is provided. The projection lens system includes a projection lens with a central light axis at its center that is offset from a reference horizontal line. The offset projection lens projects a central light beam through two reflection mirrors that are not parallel with each other to an image projection surface of a front screen. The image projection surface of a front screen is normal to the horizontal line.Type: ApplicationFiled: June 10, 2004Publication date: December 15, 2005Inventors: Yi Wei Liu, Po Liang Chiang, Hsueh Chen Chang, Hsin Wen Tsai, Ci Guang Peng