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公开(公告)号：US11307381B2
公开(公告)日：2022-04-19
申请号：US16496238
申请日：2017-06-28
发明人： Dae Bong Kim , Young Sang Kwon , Jae Goo Lee , Young Mi Kim , Hee Joong Han
IPC分类号： G02B7/10
摘要： Provided is an optical device including an optics including at least two moving groups that are movable along an optical axis and share portions of driving regions; a plurality of actuators configured to move the at least two moving groups along the optical axis, respectively; and a control unit configured to control the positions of the at least two moving groups by operating the actuators, wherein the control unit moves the at least two moving groups independently, such that the position coordinates of the at least two moving groups in one integrated coordinates system do not coincide with each other.
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公开(公告)号：US11076101B2
公开(公告)日：2021-07-27
申请号：US16956606
申请日：2018-01-08
发明人： Cheol Ho Kim , Dae Bong Kim , Young Sang Kwon
IPC分类号： H04N5/232
摘要： A method of correcting an optical axis of a zoom lens includes obtaining a degree of optical axis misalignment corresponding to a current zoom lens state of a camera, considering the current zoom lens state of the camera and data previously stored to define a relationship between a state of the zoom lens of the camera and the degree of optical axis misalignment, determining digital zoom information to compensate for the degree of optical axis misalignment, considering the degree of optical axis misalignment, and generating correction image data by cropping and magnifying image data photographed by the camera to correspond to the digital zoom information.
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公开(公告)号：US11889185B2
公开(公告)日：2024-01-30
申请号：US17056815
申请日：2019-05-24
发明人： Dong Jin Park , Dae Bong Kim , Young Sang Kwon , Ki Bum Park , Joon Chan Park , Young Sub Kim
摘要： A monitoring system includes a camera module configured to photograph a subject, a laser distance sensor configured to sense a distance to the subject, the laser distance sensor being arranged in a line with the camera module, and a processor configured to acquire a first angle and a first sensing value of the laser distance sensor in response to an event, calculate a first distance between the camera module and the subject by using the first angle and the first sensing value, calculate a second angle by using the first distance, a laser angle of view of the laser distance sensor, and a laser angle of view length of the laser distance sensor, rotate the laser distance sensor up to the second angle when a difference between the first angle and the second angle exceeds a predetermined range, and acquire a second sensing value of the laser distance sensor.
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公开(公告)号：US10904445B2
公开(公告)日：2021-01-26
申请号：US16493055
申请日：2017-06-27
发明人： Dae Bong Kim , Young Sang Kwon , Ki Bum Park
IPC分类号： H04N5/232
摘要： A zoom tracking method performed by a control unit of a zoom camera includes operations (a) through (c). In operation (a), the control unit determines a focusing progress state at a time when a zooming start signal is received. In operation (b), the control unit narrows an estimated range of a subject distance or estimates the subject distance, according to the focusing progress state. In operation (c), the control unit performs focusing for a zoom magnification according to the narrowed estimated range or the estimated subject distance.
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