公开(公告)号：US10962769B2

公开(公告)日：2021-03-30

申请号：US15543052

申请日：2016-01-11

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Seung Taek Kim ,  Moon Soo Park ,  Jong Seok Kim ,  Hyung Tae Kim

IPC: G02B26/12 ,  B33Y30/00 ,  B29C67/00 ,  B29C64/264 ,  G01B5/00 ,  G01B11/00 ,  G01B11/25 ,  G02B26/10 ,  G06K9/32 ,  H04N1/113

Abstract: The present invention relates to a head device of a three-dimensional modelling equipment, and a modelling plane scanning method using the same, the head device of a three-dimensional modelling equipment comprising: a modelling light source array having a plurality of modelling light sources; a light guide part, installed at a given position above a modelling plane, having a function of reflecting modelling rays from the modelling light source array so as to be incident on the modelling plane; and a controller for controlling the operations of the modelling light source array and the light guide part in a conjoined manner, wherein a plurality of modelling rays generated from the plurality of modelling light sources are irradiated while forming one line scan having a first axial direction on the modelling plane, and the light guide part continuously or intermittently moves the one line scan on the modelling plane to irradiate the modelling light rays across the modelling plane. The present invention has the effects of enabling high-speed scanning to be performed, and modelling precision to be enhanced through precise scanning control.

公开(公告)号：US09160983B2

公开(公告)日：2015-10-13

申请号：US13959789

申请日：2013-08-06

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Hyung Tae Kim ,  Seung Taek Kim ,  Kyeong Yong Cho ,  Jong Seok Kim

IPC: H04N7/18 ,  H05B33/08

CPC classification number: H04N7/18 ,  H05B33/086

Abstract: A method of controlling color lighting in a vision system is provided which is capable of rapidly searching for a voltage value which allows an optimal product image to be obtained in a vision system including a plurality of lightings. In accordance with an embodiment, a voltage value allowing an optimal product image to be obtained can rapidly searched for in a vision system including a plurality of lightings.

Abstract translation: 提供一种控制视觉系统中的彩色照明的方法，其能够快速搜索允许在包括多个照明的视觉系统中获得最佳产品图像的电压值。 根据实施例，可以在包括多个照明的视觉系统中快速搜索允许获得最佳产品图像的电压值。

公开(公告)号：US20140300780A1

公开(公告)日：2014-10-09

申请号：US14353781

申请日：2012-10-26

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Hyung Tae Kim ,  Seung Taek Kim

IPC: H04N9/07

CPC classification number: H04N9/07 ,  G01N21/8806 ,  G01N21/9501 ,  H04N5/2354

Abstract: Provided is a color lighting control method including a lighting device having a plurality of lighting unit, the method including the steps of: (a) applying predetermined input voltages to the plurality of lighting units respectively and obtaining image data through the camera; (b) calculating an image histogram that is a distribution graph for displaying the number of pixels corresponding to each monochrome level intensity through the image data; (c) calculating a standard deviation of the image histogram; and (d) calculating an optimal input voltage value for each of the plurality of lighting units within an adjustment range of the predetermined input voltages, wherein the optimal input voltage value maximizes the standard deviation.

Abstract translation: 提供一种包括具有多个照明单元的照明装置的彩色照明控制方法，所述方法包括以下步骤：（a）分别对所述多个照明单元施加预定的输入电压并通过照相机获得图像数据; （b）计算图像直方图，该图像直方图是通过图像数据显示与每个单色电平强度对应的像素数的分布图; （c）计算图像直方图的标准偏差; 以及（d）在所述预定输入电压的调整范围内计算所述多个照明单元中的每一个的最佳输入电压值，其中所述最佳输入电压值使所述标准偏差最大化。

公开(公告)号：US10810788B2

公开(公告)日：2020-10-20

申请号：US15540546

申请日：2015-10-28

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Seung Taek Kim ,  Jong Seok Kim ,  Hyung Tae Kim ,  Kyung Chan Jin ,  Moon Soo Park

IPC: G06T15/20 ,  B29C64/00 ,  B29C64/268 ,  B29C64/182 ,  B29C64/135 ,  B29C64/153 ,  G02B26/12 ,  G06T17/20 ,  B33Y30/00 ,  B33Y10/00

Abstract: The present invention relates to a multichannel head assembly for a three-dimensional modeling apparatus which can improve productivity by simultaneously or synchronously modeling a plurality of three-dimensional shaped objects having the same shape or different shapes, and a three-dimensional modeling apparatus using the same, the present invention comprising: a modeling light source unit for allowing N modeling beams to be incident to a light guide unit; the light guide unit for receiving the N incident modeling beams and having a function of guiding each of the N modeling beams along a predetermined path so as to allow the N modeling beams to be incident to N modeling planes in one-to-one correspondence with each other; and a control unit for controlling driving of the modeling light source unit and driving of the light guide unit to be linked with each other.

公开(公告)号：US09654746B2

公开(公告)日：2017-05-16

申请号：US14353781

申请日：2012-10-26

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Hyung Tae Kim ,  Seung Taek Kim

IPC: G06K9/00 ,  H04N9/07 ,  G01N21/88 ,  G01N21/95 ,  H04N5/235

CPC classification number: H04N9/07 ,  G01N21/8806 ,  G01N21/9501 ,  H04N5/2354

Abstract: Provided is a color lighting control method including a lighting device having a plurality of lighting unit, the method including the steps of: (a) applying predetermined input voltages to the plurality of lighting units respectively and obtaining image data through the camera; (b) calculating an image histogram that is a distribution graph for displaying the number of pixels corresponding to each monochrome level intensity through the image data; (c) calculating a standard deviation of the image histogram; and (d) calculating an optimal input voltage value for each of the plurality of lighting units within an adjustment range of the predetermined input voltages, wherein the optimal input voltage value maximizes the standard deviation.

公开(公告)号：US10690908B2

公开(公告)日：2020-06-23

申请号：US15519749

申请日：2014-10-29

Applicant: Korea Institute of Industrial Technology

Inventor： Seung Taek Kim ,  Moon Soo Park ,  Young June Cho ,  Deok Keun Lee ,  Jong Seok Kim ,  Hyung Tae Kim

IPC: B33Y30/00 ,  G02B26/12 ,  H04N1/113 ,  G02B26/10 ,  B29C64/386 ,  B33Y50/02 ,  G05B19/4099

Abstract: A head device of three-dimensional modeling equipment is disclosed which has unidirectionally rotating polygon mirrors, can perform biaxial scanning at a high speed due to a combination of the mirrors, can easily control timing and a modeling ray irradiation position, and can enhance modeling precision. A scanning method for a modeling plane using the same is also disclosed.