Patents by Inventor Hung-Chung Li
Hung-Chung Li 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: 8537450Abstract: A two-dimensional scanning and reflecting device includes a vibration component and a scanning component. The vibration component has a free end. The scanning component includes a frame body, a mass block, and a mirror. The frame body is connected to the free end of the vibration component. A natural frequency of the mirror corresponds to a second frequency. The mass block is disposed on the frame body in an eccentric manner, and the mass block and the natural frequency of the mirror correspond to a first frequency. When the vibration component receives a multi-frequency signal having the first frequency and the second frequency, the mirror vibrates in an axial direction with the first frequency, and vibrates in another axial direction with the second frequency.Type: GrantFiled: May 10, 2011Date of Patent: September 17, 2013Assignee: Industrial Technology Research InstituteInventors: Pin Chang, Chung-De Chen, Chien-Shien Yeh, Hung-Chung Li
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Patent number: 8508827Abstract: A vibration-actuated micro mirror device comprises a substrate, a swinging frame, a reflection mirror, and a vibration part. The swinging frame is rotatably arranged within a first accommodating space formed on the substrate. The reflection mirror is rotatably arranged within a second accommodating space formed on the swinging frame. The vibration part further comprises a plate coupled to the substrate, and a first and a second vibration structures. The first and the second vibration structures are coupled to the plate and are spaced a distance away from each other, wherein the first vibration structure receives a first driving signal having a first frequency and the second vibration structure receives a second driving signal having a second frequency smaller than the first frequency, thereby enabling the swinging frame to rotate about the first axis while enabling the reflection mirror to rotate about the second axis.Type: GrantFiled: November 2, 2012Date of Patent: August 13, 2013Assignee: Industrial Technology Research InstituteInventors: Yu-Jen Wang, Chien-Shien Yeh, Chung-De Chen, Hung-Chung Li
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Publication number: 20130057936Abstract: A vibration-actuated micro mirror device comprises a substrate, a swinging frame, a reflection mirror, and a vibration part. The swinging frame is rotatably arranged within a first accommodating space formed on the substrate. The reflection mirror is rotatably arranged within a second accommodating space formed on the swinging frame. The vibration part further comprises a plate coupled to the substrate, and a first and a second vibration structures. The first and the second vibration structures are coupled to the plate and are spaced a distance away from each other, wherein the first vibration structure receives a first driving signal having a first frequency and the second vibration structure receives a second driving signal having a second frequency smaller than the first frequency, thereby enabling the swinging frame to rotate about the first axis while enabling the reflection mirror to rotate about the second axis.Type: ApplicationFiled: November 2, 2012Publication date: March 7, 2013Applicant: Industrial Technology Research InstituteInventors: YU-JEN WANG, CHIEN-SHIEN YEH, CHUNG-DE CHEN, HUNG-CHUNG LI
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Patent number: 8325405Abstract: The present invention provides a vibration-actuated micro mirror device comprising a substrate having a swinging frame and a reflection mirror, and a vibration part having a first and a second vibration structures coupled to the substrate, wherein the first vibration structure is driven to generate a first complex wave formed by a first and a second wave signals while the second vibration structure is driven to generate a second complex wave formed by a third and a fourth wave signals, and the first and the third wave signals are formed with the same frequency and phase while the second and the fourth wave signals are formed with the same frequency but opposite phases. The first and the second complex waves actuate the substrate such that the swinging frame is rotated about a first axis while the reflection mirror is rotated about a second axis.Type: GrantFiled: April 19, 2012Date of Patent: December 4, 2012Assignee: Industrial Technology Research InstituteInventors: Yu-Jen Wang, Chien-Shien Yeh, Chung-De Chen, Hung-Chung Li
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Publication number: 20120218612Abstract: A two-dimensional scanning and reflecting device includes a vibration component and a scanning component. The vibration component has a free end. The scanning component includes a frame body, a mass block, and a mirror. The frame body is connected to the free end of the vibration component. A natural frequency of the mirror corresponds to a second frequency. The mass block is disposed on the frame body in an eccentric manner, and the mass block and the natural frequency of the mirror correspond to a first frequency. When the vibration component receives a multi-frequency signal having the first frequency and the second frequency, the mirror vibrates in an axial direction with the first frequency, and vibrates in another axial direction with the second frequency.Type: ApplicationFiled: May 10, 2011Publication date: August 30, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Pin Chang, Chung-De Chen, Chien-Shien Yeh, Hung-Chung Li
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Publication number: 20120200902Abstract: The present invention provides a vibration-actuated micro mirror device comprising a substrate having a swinging frame and a reflection mirror, and a vibration part having a first and a second vibration structures coupled to the substrate, wherein the first vibration structure is driven to generate a first complex wave formed by a first and a second wave signals while the second vibration structure is driven to generate a second complex wave formed by a third and a fourth wave signals, and the first and the third wave signals are formed with the same frequency and phase while the second and the fourth wave signals are formed with the same frequency but opposite phases. The first and the second complex waves actuate the substrate such that the swinging frame is rotated about a first axis while the reflection mirror is rotated about a second axis.Type: ApplicationFiled: April 19, 2012Publication date: August 9, 2012Applicant: Industrial Technology Research InstituteInventors: YU-JEN WANG, CHIEN-SHIEN YEH, CHUNG-DE CHEN, HUNG-CHUNG LI
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Patent number: 8218214Abstract: The present invention provides a vibration-actuated micro mirror device comprising a substrate having a swinging frame and a reflection mirror, and a vibration part having a first and a second vibration structures coupled to the substrate, wherein the first vibration structure is driven to generate a first complex wave formed by a first and a second wave signals while the second vibration structure is driven to generate a second complex wave formed by a third and a fourth wave signals, and the first and the third wave signals are formed with the same frequency and phase while the second and the fourth wave signals are formed with the same frequency but opposite phases. The first and the second complex waves actuate the substrate such that the swinging frame is rotated about a first axis while the reflection mirror is rotated about a second axis.Type: GrantFiled: December 8, 2010Date of Patent: July 10, 2012Assignee: Industrial Technology Research InstituteInventors: Yu-Jen Wang, Chien-Shien Yeh, Chung-De Chen, Hung-Chung Li
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Publication number: 20120044555Abstract: The present invention provides a vibration-actuated micro mirror device comprising a substrate having a swinging frame and a reflection mirror, and a vibration part having a first and a second vibration structures coupled to the substrate, wherein the first vibration structure is driven to generate a first complex wave formed by a first and a second wave signals while the second vibration structure is driven to generate a second complex wave formed by a third and a fourth wave signals, and the first and the third wave signals are formed with the same frequency and phase while the second and the fourth wave signals are formed with the same frequency but opposite phases. The first and the second complex waves actuate the substrate such that the swinging frame is rotated about a first axis while the reflection mirror is rotated about a second axis.Type: ApplicationFiled: December 8, 2010Publication date: February 23, 2012Applicant: Industrial Technology Research InstituteInventors: YU-JEN WANG, Chien-Shien Yeh, Chung-De Chen, Hung-Chung Li
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Publication number: 20110194164Abstract: An optical multi-ring scanner is disclosed, which comprises: a substrate; an outer ring driving element, disposed inside the substrate and configured symmetrically at two sides thereof with a pair of first arms that are connected respectively to the substrate; at least one inner ring driving element, each configured with a first inner ring driver in a manner that the first inner ring driver has a pair of second arms symmetrically disposed at a top side and a bottom side thereof while being connected to the outer ring driving element; and a mirror element, disposed inside the first inner ring driver and having a pair of third arms symmetrically disposed at a top side of a bottom side thereof; wherein, the third arm is disposed coaxial with the second arm while enabling the first arm to be disposed perpendicular to the second arm and the third arm.Type: ApplicationFiled: June 30, 2010Publication date: August 11, 2011Applicant: Industrial Technology Research InstituteInventors: Ming-Chieh Chou, Pin Chang, Hung-Chung Li, Chung-De Chen
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Patent number: 7990595Abstract: An optical multi-ring scanner is disclosed, which comprises: a substrate; an outer ring driving element, disposed inside the substrate and configured symmetrically at two sides thereof with a pair of first arms that are connected respectively to the substrate; at least one inner ring driving element, each configured with a first inner ring driver in a manner that the first inner ring driver has a pair of second arms symmetrically disposed at a top side and a bottom side thereof while being connected to the outer ring driving element; and a mirror element, disposed inside the first inner ring driver and having a pair of third arms symmetrically disposed at a top side of a bottom side thereof; wherein, the third arm is disposed coaxial with the second arm while enabling the first arm to be disposed perpendicular to the second arm and the third arm.Type: GrantFiled: June 30, 2010Date of Patent: August 2, 2011Assignee: Industrial Technology Research InstituteInventors: Ming-Chieh Chou, Pin Chang, Hung-Chung Li, Chung-De Chen
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Publication number: 20100149614Abstract: An optical scanner including a substrate, a driving component, and an optical reflector is provided. The driving component is disposed on the substrate and has a first hole. The driving component can swing about a first axis by a time-varied magnetic force. The optical reflector has a reflective surface and is disposed in the first hole. The optical reflector can swing about a second axis by a Lorentz force. The first axis is essentially perpendicular to the second axis. The first axis and the second axis are both essentially parallel to the reflective surface.Type: ApplicationFiled: September 24, 2009Publication date: June 17, 2010Applicant: Industrial Technology Research InstituteInventors: MING-CHIEH CHOU, Pin Chang, Hung-Chung Li, Chung-De Chen