Patents by Inventor Jung-Lieh Tsai
Jung-Lieh Tsai 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: 10684450Abstract: An annular optical element includes a first side surface, a second side surface, an outer annular surface and an inner annular surface. The outer annular surface connects the first side surface and the second side surface, and surrounds a central axis of the annular optical element. The inner annular surface connects the first side surface and the second side surface, surrounds the central axis, and is closer to the central axis than the outer annular surface is to the central axis. The inner annular surface includes a plurality of protrusion circles surrounding the central axis and arranged along a direction from the first side surface towards the second side surface. Each of the protrusion circles includes a plurality of protrusion structures and a plurality of separation structures, and the protrusion structures and the separation structures are alternately arranged to surround the central axis.Type: GrantFiled: May 15, 2018Date of Patent: June 16, 2020Assignee: LARGAN PRECISION CO., LTD.Inventors: Jung-Lieh Tsai, Ming-Ta Chou
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Publication number: 20180259745Abstract: An annular optical element includes a first side surface, a second side surface, an outer annular surface and an inner annular surface. The outer annular surface connects the first side surface and the second side surface, and surrounds a central axis of the annular optical element. The inner annular surface connects the first side surface and the second side surface, surrounds the central axis, and is closer to the central axis than the outer annular surface is to the central axis. The inner annular surface includes a plurality of protrusion circles surrounding the central axis and arranged along a direction from the first side surface towards the second side surface. Each of the protrusion circles includes a plurality of protrusion structures and a plurality of separation structures, and the protrusion structures and the separation structures are alternately arranged to surround the central axis.Type: ApplicationFiled: May 15, 2018Publication date: September 13, 2018Inventors: Jung-Lieh Tsai, Ming-Ta Chou
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Patent number: 10001624Abstract: An annular optical element includes a first side surface, a second side surface, an outer annular surface and an inner annular surface. The outer annular surface connects the first side surface and the second side surface, and surrounds a central axis of the annular optical element. The inner annular surface connects the first side surface and the second side surface, surrounds the central axis, and is closer to the central axis than the outer annular surface is to the central axis. The inner annular surface includes a plurality of protrusion circles surrounding the central axis and arranged along a direction from the first side surface towards the second side surface. Each of the protrusion circles includes a plurality of protrusion structures and a plurality of separation structures, and the protrusion structures and the separation structures are alternately arranged to surround the central axis.Type: GrantFiled: December 22, 2016Date of Patent: June 19, 2018Assignee: LARGAN PRECISION CO., LTD.Inventors: Jung-Lieh Tsai, Ming-Ta Chou
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Publication number: 20180106983Abstract: An annular optical element includes a first side surface, a second side surface, an outer annular surface and an inner annular surface. The outer annular surface connects the first side surface and the second side surface, and surrounds a central axis of the annular optical element. The inner annular surface connects the first side surface and the second side surface, surrounds the central axis, and is closer to the central axis than the outer annular surface is to the central axis. The inner annular surface includes a plurality of protrusion circles surrounding the central axis and arranged along a direction from the first side surface towards the second side surface. Each of the protrusion circles includes a plurality of protrusion structures and a plurality of separation structures, and the protrusion structures and the separation structures are alternately arranged to surround the central axis.Type: ApplicationFiled: December 22, 2016Publication date: April 19, 2018Inventors: Jung-Lieh Tsai, Ming-Ta Chou
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Publication number: 20140301110Abstract: The present invention relates to a power generating module and light guiding film thereof. The light guiding film includes a film base and at least one microstructure. The microstructure is disposed on a side surface of the film base. After the input light beams pass through the light guiding film, the total luminous flux of the output light beams with the output angles from 70 to 110 degrees is more than 40% of the total luminous flux of the output light beams with the output angles from 0 to 180 degrees. Therefore, most of the output light beams emit in the normal direction.Type: ApplicationFiled: October 21, 2013Publication date: October 9, 2014Applicant: CHI LIN TECHNOLOGY CO., LTD.Inventors: YI-HSING CHIANG, TE-HUNG CHANG, JUNG-LIEH TSAI, CHO-HAN FAN
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Publication number: 20140160785Abstract: The present invention relates to a light guiding system and a ceiling structure. The light guiding system includes a first light guiding element and a second light guiding element disposed on a first plane and a second plane of a accommodation space, respectively. The second light guiding element includes a plurality of light guiding structures, each having a first surface and a second surface. The light beam from the first light guiding element is refracted by the first surface to enter the light guiding structure, then reflected, and then refracted by the second surface to emit out.Type: ApplicationFiled: December 2, 2013Publication date: June 12, 2014Applicant: CHI LIN TECHNOLOGY CO., LTD.Inventors: JUNG-LIEH TSAI, YI-HSING CHIANG
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Patent number: 8665521Abstract: The present invention relates to a window and light guiding film therein. The light guiding film includes a film base and at least one microstructure. The microstructure is disposed on a side of the film base, and comprises a first surface and a second surface. The refraction index of the microstructure is 1.9 to 2.6. A first inclination angle is between the first surface and a reference plane, the reference plane is perpendicular to the film base, and a second inclination angle is between the second surface and the reference plane, wherein the first inclination angle is less than or equal to the second inclination angle.Type: GrantFiled: January 20, 2012Date of Patent: March 4, 2014Assignee: Chi Lin Technology Co., Ltd.Inventors: Jung-Lieh Tsai, Yi-Hsing Chiang, Pei-Chian Tsai
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Publication number: 20130333742Abstract: The present invention relates to a power generating window set and a power generating module thereof. The power generating module includes a light-guiding substrate and at least one photoelectric conversion element. The light-guiding substrate has a plurality of microstructures. The photoelectric conversion element is disposed adjacent to the light-guiding substrate. When a light beam illuminates the light-guiding substrate, the microstructures guide a part of the light beam to the photoelectric conversion element, so as to convert the energy of part of the light beam into electrical energy.Type: ApplicationFiled: June 6, 2013Publication date: December 19, 2013Inventors: TE-HUNG CHANG, JUNG-LIEH TSAI, YI-HSING CHIANG, MENG-CHUNG LEE, CHO-HAN FAN, CHIANG-RONG HU
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Publication number: 20120194913Abstract: The present invention relates to a window and light guiding film therein. The light guiding film includes a film base and at least one microstructure. The microstructure is disposed on a side of the film base, and comprises a first surface and a second surface. The refraction index of the microstructure is 1.9 to 2.6. A first inclination angle is between the first surface and a reference plane, the reference plane is perpendicular to the film base, and a second inclination angle is between the second surface and the reference plane, wherein the first inclination angle is less than or equal to the second inclination angle.Type: ApplicationFiled: January 20, 2012Publication date: August 2, 2012Applicant: CHI LIN TECHNOLOGY CO., LTD.Inventors: JUNG-LIEH TSAI, YI-HSING CHIANG, PEI-CHIAN TSAI
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Patent number: 8107164Abstract: The present invention relates to a light guiding film including a film base and at least one microstructure. The microstructure is disposed on a side of the film base, and comprises a first surface and a second surface. A first inclination angle is between the first surface and a reference plane, the reference plane is perpendicular with the film base, and a second inclination angle is between the second surface and the reference plane. The total energy of the output light beams with the output angles from 85 to 120 degrees is more than 40% of the total energy of the output light beams with the output angles from 0 to 180 degrees. Therefore, the light guiding film can guide the incident light beams into a room near horizontally and avoid glare.Type: GrantFiled: June 3, 2010Date of Patent: January 31, 2012Assignee: Chi Lin Technology Co., Ltd.Inventor: Jung-Lieh Tsai
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Publication number: 20110296795Abstract: The present invention relates to a light guiding film including a film base and at least one microstructure. The microstructure is disposed on a side of the film base, and comprises a first surface and a second surface. A first inclination angle is between the first surface and a reference plane, the reference plane is perpendicular with the film base, and a second inclination angle is between the second surface and the reference plane. The total energy of the output light beams with the output angles from 85 to 120 degrees is more than 40% of the total energy of the output light beams with the output angles from 0 to 180 degrees. Therefore, the light guiding film can guide the incident light beams into a room near horizontally and avoid glare.Type: ApplicationFiled: June 3, 2010Publication date: December 8, 2011Applicant: CHI LIN TECHNOLOGY CO., LTD.Inventor: Jung-Lieh Tsai