Camera device calibration method using samplingpoints and camera module

    公开(公告)号:US12022195B2

    公开(公告)日:2024-06-25

    申请号:US17044770

    申请日:2019-04-05

    Inventor: Jun Seok Oh Min Kim

    CPC classification number: H04N23/69 G02B7/10 G03B13/18 H04N23/55 G03B2205/0053

    Abstract: A camera device calibration method according to one embodiment comprises the steps of: acquiring first data including location values of a first zoom lens and location values of a first focus lens, corresponding to the location values of the first zoom lens; setting at least two location points of the first zoom lens; acquiring at least two location values, which correspond to the location values of the first focus lens corresponding to at least two location points of the first zoom lens; acquiring second data corresponding to a value between at least two location values of the first zoom lens; and setting, in a camera including the first zoom lens and the first focus lens, at least two location values of the first zoom lens and the first focus lens when a difference value, which is acquired by comparing the first data with the second data, is within a preset threshold range.

    Front Light Unit and Image Display Device
    2.
    发明申请

    公开(公告)号:US20180045902A1

    公开(公告)日:2018-02-15

    申请号:US15553924

    申请日:2016-02-26

    Abstract: A front light unit of an embodiment comprises: a light source unit for an image display device; a light guide unit for guiding light incident from the light source unit and outputting the guided light to a display unit; and a holographic optical element unit being opposite to the display unit and disposed on the light guide unit. Therefore, the present invention can adjust the direction of light output from the light source unit and increase the quantity of light transferred to the display unit, using a pattern formed in the holographical optical element unit, thereby improving the efficiency of light supplied from the light source unit and reducing the sizes of the light unit and the display device including the same.

    Front light unit and image display device

    公开(公告)号:US10684428B2

    公开(公告)日:2020-06-16

    申请号:US15553924

    申请日:2016-02-26

    Abstract: A front light unit of an embodiment comprises: a light source unit for an image display device; a light guide unit for guiding light incident from the light source unit and outputting the guided light to a display unit; and a holographic optical element unit being opposite to the display unit and disposed on the light guide unit. Therefore, the present invention can adjust the direction of light output from the light source unit and increase the quantity of light transferred to the display unit, using a pattern formed in the holographical optical element unit, thereby improving the efficiency of light supplied from the light source unit and reducing the sizes of the light unit and the display device including the same.

    Camera module having a portion of a substrate disposed between a light source and a heat sink

    公开(公告)号:US12081852B2

    公开(公告)日:2024-09-03

    申请号:US16644738

    申请日:2018-09-21

    Inventor: Min Kim

    CPC classification number: H04N23/55 G03B17/12 G03B17/55 H04N23/57

    Abstract: The present embodiment relates to a camera module comprising: a substrate having a first region, a second region, and a first connection portion between the first region and the second region; a lens unit disposed in the first region of the substrate and including a lens holder in which a lens a lens barrel are disposed; a heat sink part disposed adjacent to the lens unit in the first region of the substrate; and a light source element disposed above the heat sink part and disposed in the second region of the substrate, wherein the lens unit is disposed on a first surface of the substrate, the light source element is disposed on a second surface of the substrate, the first connection portion is bent at the side surface of the heat sink part so as to connect the first region and the second region, the first connection portion includes a flexible substrate, and the flexible substrate is disposed between the first surface and the second surface of the substrate.

    Actuator control apparatus and method for changing an optical path of a lens

    公开(公告)号:US11956542B2

    公开(公告)日:2024-04-09

    申请号:US17420450

    申请日:2020-01-02

    Inventor: Jun Seok Oh Min Kim

    CPC classification number: H04N23/687 G02B7/09 G03B5/02 G03B17/12 G03B2205/0069

    Abstract: According to an embodiment of the present invention, an actuator control apparatus comprises: an actuator changing an optical path of a lens; and a controller controlling the actuator, wherein the actuator comprises a first driver and a second driver which are arranged on a first side of a lens support member, and a third driver and a fourth driver which are arranged on a second side of the lens support member. A first distance between the first driver and the second driver is different from a second distance between the first driver and the third driver, and the first driver and the fourth driver are located in a diagonal direction with respect to each other. The controller applies a first current to the second driver and the third driver and applies a second current to the first driver and the fourth driver. When the lens is moved in a diagonal direction, an absolute value of the first current is different from an absolute value of the second current.

    Camera device having first and second cameras, and method of operating same

    公开(公告)号:US11575821B2

    公开(公告)日:2023-02-07

    申请号:US17278023

    申请日:2019-09-19

    Inventor: Min Kim Jun Seok Oh

    Abstract: A camera device including first and second cameras, focal position information of the first camera and focal position information of the second camera are matched with each other. Also, the accuracy of the current focal position of the first camera is determined based on the phase difference of images obtained by the first camera when the first camera is auto-focused. Subsequently, when the accuracy of the current focal position of the first camera is low, an accurate focal position of the first camera is tracked by using the matched focal position information of the second camera. When an auto-focusing function of the first camera is activated, focal position movements are tracked by using the focal position information of the second camera as well as zoom tracking of the first camera, and thus, the accuracy can be improved.

    Camera Module and Auto-Focus Adjustment Method Using Same

    公开(公告)号:US20180039156A1

    公开(公告)日:2018-02-08

    申请号:US15553877

    申请日:2016-02-26

    Abstract: According to an embodiment, disclosed are a camera module and an auto-focus adjustment method using the same, the camera module comprising: an optical unit comprising at least one lens; an image sensor unit for converting an optical signal obtained from the optical unit into image information; an image information processing unit for extracting focusing image information from the converted image information; a memory unit for storing an AF code value; a control unit for detecting the AF code value corresponding to the focusing image information extracted at the image information processing unit and generating a driving signal to move the optical unit; and a driving unit for adjusting the position of the at least one lens according to the driving signal, wherein the AF code value is updated with the AF code value of the last focus image so that the focus image may be obtained quickly, and it is possible to perform accurate focusing and obtain a high quality image even if the number of uses increases or the usage environment changes.

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