Patents by Inventor Kun-Rong Chang
Kun-Rong Chang 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: 8376550Abstract: A projection system including a light valve, a lens, an arc reflector, and an arc screen is provided. The light valve is capable of providing an image beam. The lens is disposed in the transmission path of the image beam. The arc reflector has an arc reflective surface. The arc reflective surface is disposed in the transmission path of the image beam from the lens, so as to reflect the image beam. The arc reflective surface is curved in a first direction and not curved in a second direction substantially perpendicular to the first direction. The arc screen is disposed in the transmission path of the image beam reflected by the arc reflective surface. The arc screen is curved in the first direction and not curved in a third direction substantially perpendicular to the first direction. A projection apparatus and an imaging module are also provided.Type: GrantFiled: September 2, 2010Date of Patent: February 19, 2013Assignee: Coretronic CorporationInventor: Kun-Rong Chang
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Patent number: 8016432Abstract: A projection apparatus adapted to be disposed on a surface and adapted to project an image frame onto the surface is provided. The projection apparatus includes a housing, an optical engine, a projection lens, a containing sink, an extension rod, and a curved surface reflection device. The optical engine is disposed in the housing, and capable of providing an image beam. The projection lens is disposed in the transmission path of the image beam. The containing sink is disposed on the housing and has a containing space. The extension rod is movably connected to the containing sink. The curved surface reflection device is pivotally connected to the extension rod. The extension rod and the curved surface reflection device are adapted to be contained in the containing space. The curved surface reflection device has a curved reflective surface capable of reflecting the image beam to the surface.Type: GrantFiled: June 5, 2009Date of Patent: September 13, 2011Assignee: Coretronic CorporationInventor: Kun-Rong Chang
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Patent number: 7957631Abstract: An image stabilization apparatus for stabilizing an image sensor is disclosed. The image stabilization apparatus includes a transmission component whereon a slot is formed. The image stabilization apparatus further includes a rotary motor including an annular rotor connected to the transmission component, and an annular stator disposed on a side of the annular rotor. The annular rotor is capable of rotating relative to the annular stator. The image stabilization apparatus further includes a carrier for carrying the image sensor. The carrier includes a shaft disposed inside the slot in a slidable manner. The image stabilization apparatus further includes a linear motor coupled to the transmission component and the shaft of the carrier for driving the carrier to slide inside the slot.Type: GrantFiled: February 5, 2008Date of Patent: June 7, 2011Assignee: Coretronic CorporationInventor: Kun-Rong Chang
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Publication number: 20110102745Abstract: A stereo display apparatus includes a support member, at least one projector, a screen, first reflectors, and an actuator. The projector is connected to the support member, and includes a battery and an image memory module. The projector is capable of emitting an image beam. The screen is connected to the support member. The first reflectors surround the support member. The actuator is connected to the support member and is capable of driving the support member to rotate. The support member is capable of driving the projector and the screen to rotate. When the projector and the screen rotate, the image beam is projected onto the first reflectors in sequence, and the first reflectors reflect the image beam onto the screen in sequence.Type: ApplicationFiled: September 27, 2010Publication date: May 5, 2011Applicant: CORETRONIC CORPORATIONInventors: Ming-Hui Cheng, Kun-Rong Chang, Fang-Hsuan Cheng
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Publication number: 20110085146Abstract: A projection system including a light valve, a lens, an arc reflector, and an arc screen is provided. The light valve is capable of providing an image beam. The lens is disposed in the transmission path of the image beam. The arc reflector has an arc reflective surface. The arc reflective surface is disposed in the transmission path of the image beam from the lens, so as to reflect the image beam. The arc reflective surface is curved in a first direction and not curved in a second direction substantially perpendicular to the first direction. The arc screen is disposed in the transmission path of the image beam reflected by the arc reflective surface. The arc screen is curved in the first direction and not curved in a third direction substantially perpendicular to the first direction. A projection apparatus and an imaging module are also provided.Type: ApplicationFiled: September 2, 2010Publication date: April 14, 2011Applicant: CORETRONIC CORPORATIONInventor: Kun-Rong Chang
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Publication number: 20100103384Abstract: A projection apparatus adapted to be disposed on a surface and adapted to project an image frame onto the surface is provided. The projection apparatus includes a housing, an optical engine, a projection lens, a containing sink, an extension rod, and a curved surface reflection device. The optical engine is disposed in the housing, and capable of providing an image beam. The projection lens is disposed in the transmission path of the image beam. The containing sink is disposed on the housing and has a containing space. The extension rod is movably connected to the containing sink. The curved surface reflection device is pivotally connected to the extension rod. The extension rod and the curved surface reflection device are adapted to be contained in the containing space. The curved surface reflection device has a curved reflective surface capable of reflecting the image beam to the surface.Type: ApplicationFiled: June 5, 2009Publication date: April 29, 2010Applicant: CORETRONIC CORPORATIONInventor: Kun-Rong Chang
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Publication number: 20100060866Abstract: A micro-projector applied to a portable computer includes a projecting device and a clipping structure. The projecting device is capable of communicating with the portable computer through signals and projecting a projection light. The clipping structure is capable of clipping the portable computer selectively. The projecting device is disposed on the clipping structure.Type: ApplicationFiled: June 7, 2009Publication date: March 11, 2010Inventors: Kun-Rong CHANG, Wen-Chang CHIEN
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Publication number: 20080260368Abstract: An image stabilization apparatus for stabilizing an image sensor is disclosed. The image stabilization apparatus includes a transmission component whereon a slot is formed. The image stabilization apparatus further includes a rotary motor including an annular rotor connected to the transmission component, and an annular stator disposed on a side of the annular rotor. The annular rotor is capable of rotating relative to the annular stator. The image stabilization apparatus further includes a carrier for carrying the image sensor. The carrier includes a shaft disposed inside the slot in a slidable manner. The image stabilization apparatus further includes a linear motor coupled to the transmission component and the shaft of the carrier for driving the carrier to slide inside the slot.Type: ApplicationFiled: February 5, 2008Publication date: October 23, 2008Inventor: Kun-Rong Chang
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Publication number: 20060159365Abstract: A rear projection display device includes a screen, an image-processing unit for receiving an image signal, an optical projection unit forming an image light beam and projecting the light beam to form a projected image on the screen, a photo detection unit for sensing the projected image and outputting a corresponding detection signal, a driver for controlling the optical projection unit to correct the projected image, and a control unit for receiving the detection signal to determine whether there is a distortion of the projected image, and for performing control the image-processing unit or the driver to correct the distortion of the projected image automatically.Type: ApplicationFiled: December 8, 2005Publication date: July 20, 2006Applicant: CORETRONIC CORPORATIONInventor: Kun-Rong Chang
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Patent number: 7055960Abstract: A rear projection display device includes an image generator, a reflector, a screen and a light shield disposed between the reflector and the screen. The image engine emits image beams among which ineffective ones are blocked by the light shield while effective ones are reflected on the screen via the reflector, thereby increasing the image forming performance of the displace device. The light shield is mounted on an adjusting device having an adjusting element. After the rear projection display device has been assembled, an angle and position of the light shield can be adjusted by means of rotating the adjusting element to further help the light shield to block the ineffective beams.Type: GrantFiled: April 14, 2004Date of Patent: June 6, 2006Assignee: Coretronic CorporationInventors: Kun-Rong Chang, Kuo-Wen Chen
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Publication number: 20060012723Abstract: This invention provides an optical adjusting apparatus applied in a video and audio reproducing system to adjust the focal length of a lens within the video and audio reproducing system. The lens group includes a first lens set and a second lens set. The optical adjusting apparatus includes a controller and a moving device. The controller is used for generating an adjusting signal. The moving device is connected to the controller and the lens group. According to the adjusting signal, the moving device adjusts a position of the first lens set and a position of the second lens set so as to adjust the focal length and the image-forming focal point of the lens group.Type: ApplicationFiled: July 12, 2005Publication date: January 19, 2006Inventor: Kun-Rong Chang
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Publication number: 20050012995Abstract: A rear projection display apparatus includes a housing, an optical engine installed in the housing, a multi-curvatures reflection mirror, a plane mirror and a screen, in which a plurality of reflection faces with a different curvature radius are disposed at the surface of the multi-curvatures reflection mirror according to the lengths of optical paths. An image beam is provided by the optical engine and the light paths are reflected and bended to the plane mirror by the multi-curvatures reflection mirror after image deformation is corrected. Finally, the optical paths are reflected and bended again by the plane mirror and the image is displayed on the screen. Whereby, the thickness of the apparatus can be reduced and the image deformation can be improved.Type: ApplicationFiled: July 8, 2004Publication date: January 20, 2005Inventor: Kun-Rong CHANG
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Publication number: 20040218107Abstract: A rear projection display device includes an image generator, a reflector, a screen and a light shield disposed between the reflector and the screen. The image engine emits image beams among which ineffective ones are blocked by the light shield while effective ones are reflected on the screen via the reflector, thereby increasing the image forming performance of the displace device. The light shield is mounted on an adjusting device having an adjusting element. After the rear projection display device has been assembled, an angle and position of the light shield can be adjusted by means of rotating the adjusting element to further help the light shield to block the ineffective beams.Type: ApplicationFiled: April 14, 2004Publication date: November 4, 2004Inventors: Kun-Rong CHANG, Kuo-Wen CHEN