Patents Assigned to DONGIN OPTICAL CO., LTD.
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Patent number: RE46734Abstract: Disclosed is an apparatus for multi-correcting a trajectory, the apparatus comprising a trajectory correcting unit in which a polygonal cam comprising a plurality of surfaces different in distance from a rotary center is rotatably installed between a dot sight or an optical signal and a firearm to adjust an angle between an optical axis of the dot sight or optical sight and a gun barrel axis of the firearm, wherein the trajectory correcting unit is installed to be movable in an axis direction, and coaxially provided with two or more polygonal cams to respectively set trajectory correcting angles corresponding to distances in accordance with calibers of a bullet and the kinds of bullet. With this, one dot sight or optical sight can be mounted to firearms using bullets different in the trajectory or firearms different in a caliber from one another, thereby enhancing equipment use efficiency.Type: GrantFiled: September 27, 2016Date of Patent: February 27, 2018Assignee: DONGIN OPTICAL CO., LTD.Inventor: Bo Sun Jeung
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Patent number: RE46764Abstract: Provided is a dot sighting device with large caliber for binocular vision in which sighting can be performed rapidly and accurately by minimizing parallax. The dot sighting device is attached to and detached from a mount for a heavy machine gun. In addition, by using the dot sighting device with large caliber, a user can rapidly and accurately sight and fire a target by taking into consideration types and characteristics of the target and a distance to the target.Type: GrantFiled: January 31, 2013Date of Patent: March 27, 2018Assignee: DONGIN OPTICAL CO., LTD.Inventors: In Jung, Dong Hee Lee
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Patent number: RE47133Abstract: Provided is a dot sighting device with large caliber for binocular vision in which sighting can be performed rapidly and accurately by minimizing parallax. The dot sighting device is attached to and detached from a mount for a heavy machine gun. In addition, by using the dot sighting device with large caliber, a user can rapidly and accurately sight and fire a target by taking into consideration types and characteristics of the target and a distance to the target.Type: GrantFiled: May 17, 2017Date of Patent: November 20, 2018Assignee: DONGIN OPTICAL CO., LTD.Inventor: In Jung
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Patent number: RE47256Abstract: Provided is a dot sighting device with large caliber for binocular vision in which sighting can be performed rapidly and accurately by minimizing parallax. The dot sighting device is attached to and detached from a mount for a heavy machine gun. In addition, by using the dot sighting device with large caliber, a user can rapidly and accurately sight and fire a target by taking into consideration types and characteristics of the target and a distance to the target.Type: GrantFiled: January 24, 2018Date of Patent: February 26, 2019Assignee: DONGIN OPTICAL CO., LTD.Inventors: In Jung, Dong Hee Lee
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Patent number: RE47336Abstract: Disclosed is an apparatus for multi-correcting a trajectory, the apparatus comprising a trajectory correcting unit in which a polygonal cam comprising a plurality of surfaces different in distance from a rotary center is rotatably installed between a dot sight or an optical signal and a firearm to adjust an angle between an optical axis of the dot sight or optical sight and a gun barrel axis of the firearm, wherein the trajectory correcting unit is installed to be movable in an axis direction, and coaxially provided with two or more polygonal cams to respectively set trajectory correcting angles corresponding to distances in accordance with calibers of a bullet and the kinds of bullet. With this, one dot sight or optical sight can be mounted to firearms using bullets different in the trajectory or firearms different in a caliber from one another, thereby enhancing equipment use efficiency.Type: GrantFiled: January 24, 2018Date of Patent: April 2, 2019Assignee: DONGIN OPTICAL CO., LTD.Inventors: Dong Hee Lee, Bo Sun Jeung, In Jung
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Patent number: RE48545Abstract: Provided is a dot sighting device with large caliber for binocular vision in which sighting can be performed rapidly and accurately by minimizing parallax. The dot sighting device is attached to and detached from a mount for a heavy machine gun. In addition, by using the dot sighting device with large caliber, a user can rapidly and accurately sight and fire a target by taking into consideration types and characteristics of the target and a distance to the target.Type: GrantFiled: November 19, 2018Date of Patent: May 4, 2021Assignee: DONGIN OPTICAL CO., LTD.Inventors: In Jung, Dong Hee Lee
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Patent number: RE48746Abstract: Provided is a dot sighting device with large caliber for binocular vision in which sighting can be performed rapidly and accurately by minimizing parallax. The dot sighting device is attached to and detached from a mount for a heavy machine gun. In addition, by using the dot sighting device with large caliber, a user can rapidly and accurately sight and fire a target by taking into consideration types and characteristics of the target and a distance to the target.Type: GrantFiled: November 19, 2018Date of Patent: September 21, 2021Assignee: DONGIN OPTICAL CO., LTD.Inventors: In Jung, Dong Hee Lee
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Patent number: RE49977Abstract: Provided is a dot sighting device with large caliber for binocular vision in which sighting can be performed rapidly and accurately by minimizing parallax. The dot sighting device is attached to and detached from a mount for a heavy machine gun. In addition, by using the dot sighting device with large caliber, a user can rapidly and accurately sight and fire a target by taking into consideration types and characteristics of the target and a distance to the target.Type: GrantFiled: April 5, 2021Date of Patent: May 21, 2024Assignee: DONGIN OPTICAL CO., LTD.Inventors: In Jung, Dong Hee Lee