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1. 发明申请

US20230140083A1 METHOD FOR MEASURING RETINAL LAYER IN OCT IMAGE 有权
公开(公告)号：US20230140083A1
公开(公告)日：2023-05-04
申请号：US17966607
申请日：2022-10-14
申请人： HUVITZ CO., LTD.
发明人： Hyoung Uk KIM , Gu Yong KIM
IPC分类号： G06T7/00 , G06T7/33 , G06T7/13 , A61B3/00 , A61B3/10 , A61B3/12
摘要： A method of measuring a retinal layer includes obtaining an OCT layer image of a retina, detecting a reference boundary line indicating a retinal layer in the obtained OCT image, obtaining an aligned OCT image by aligning a vertical position of each column of the OCT image so that the detected reference boundary line becomes a baseline, predicting retinal layer regions from the aligned OCT image, calculating boundary lines between the predicted retinal layer regions, and restoring the calculated boundary lines to positions of the boundary lines of the retinal layer of the original OCT image by aligning the vertical positions of the calculated boundary lines of the retinal layer for each column so that the baseline becomes the reference boundary line again.

2. 发明申请

US20220266515A1 METHOD FOR IMPROVING LIFESPAN OF LCD OF MSLA 3D PRINTER 有权
公开(公告)号：US20220266515A1
公开(公告)日：2022-08-25
申请号：US17676810
申请日：2022-02-21
申请人： Huvitz Co., Ltd. , Huvitz Ossvis Co., Ltd.
发明人： Hee Jae LEE , Joon Ha KIM
IPC分类号： B29C64/286 , B33Y40/00 , B29C64/124 , B33Y10/00
摘要： The present inventive concept relates to a method for improving a lifespan of a liquid crystal display (LCD) of a masked stereolithography (MSLA) 3D printer, the method including the steps of: slicing a three-dimensional (3D) image into two-dimensional (2D) images; outputting the 2D images to the LCD; calculating irradiation area coordinates of UV LEDs in accordance with the 2D images; and irradiating UV light of the UV LEDs on an area matching with the 2D images in accordance with the calculated irradiation area coordinates of the UV LEDs.

3. 发明申请

US20220183799A1 TOMOGRAPHY CONVERGENCE-TYPE ORAL SCANNER 有权
公开(公告)号：US20220183799A1
公开(公告)日：2022-06-16
申请号：US17533299
申请日：2021-11-23
申请人： HUVITZ CO., LTD.
发明人： Hyo Sang JEONG , Su Min HAN
IPC分类号： A61C9/00 , A61B5/00 , G01B9/02
摘要： A tomography convergence-type oral scanner includes an oral scanning unit comprising a projector including a first light source for generating visible light, and a camera for generating image data by receiving the visible light reflected from a tooth; an optical tomography scanning unit comprising an OCT body including a second light source that has a different wavelength from the first light source and generates a measurement light incident on the tooth, a beam splitter for splitting the measurement light into a reference light and a measurement light, a reference mirror that reflects the reference light, and a photodetector for detecting an interference light, and an OCT scan probe including a collimator for converting the measurement light into a parallel light and a MEMS mirror for reflecting the converted parallel light; and a dichroic mirror for transmitting the visible light and reflecting the parallel light, thereby irradiating a tooth to be measured.

4. 发明申请

US20210339355A1 BLOCKING DEVICE AND METHOD 有权
公开(公告)号：US20210339355A1
公开(公告)日：2021-11-04
申请号：US17186384
申请日：2021-02-26
申请人： HUVITZ CO., LTD.
发明人： Dong Kun OH , Jin Ho KIM
IPC分类号： B24B13/005 , B29D11/00
摘要： A blocking device and method for mounting a leap block to a lens by a lifting/lowering mechanism using a magnet and a wire is described comprising a blocking device housing having a guide; a movable leap block attachment part mounted on the guide of the housing; a spring having a lower end supporting the attachment part and an upper end supporting the blocking device housing, the spring pushing the attachment part downward, so that the attachment part protrudes below the lower end of the blocking device housing; a wire having one end connected to a pulley and the other end connected to the attachment part, so the wire pulling the attachment part upward when the pulley rotates; a leap block attached to the lower end of the attachment part by magnets; and a blocking arm coupled to the housing and to move the housing up and down.

5. 发明申请

US20230031187A1 DEVICE AND METHOD FOR MOUNTING LEAP BLOCK 有权
公开(公告)号：US20230031187A1
公开(公告)日：2023-02-02
申请号：US17863906
申请日：2022-07-13
申请人： HUVITZ CO., LTD.
发明人： Dong Kun OH , Jin Ho KIM , Beom Mo KIM
IPC分类号： F16B1/00
摘要： A device for mounting a leap block capable of automatically adjusting the mounting direction of the leap block comprises a block stand fixedly mounted to one end of a blocking device frame and configured to support a leap block so that the leap block is rotatable in a horizontal direction; the leap block in which a support rotatably supported by the block stand is formed in the center, and a first magnetic body is mounted in one direction; and a leap block mounting unit to which a second magnetic body that couples with the first magnetic body by magnetic force is mounted in one direction, and which rotates in the horizontal direction and couples with the leap block in a fixed direction.

6. 发明申请

US20210371257A1 UP-AND-DOWN DRIVING DEVICE 有权
公开(公告)号：US20210371257A1
公开(公告)日：2021-12-02
申请号：US17328841
申请日：2021-05-24
申请人： HUVITZ CO., LTD.
发明人： Chang Sung KIM , Young Woo LEE
IPC分类号： B66F3/10 , F16F3/04
摘要： An up-and-down driving device allows an up-and-down driving unit to move while supporting an object's load, in a support module in which the up-and-down driving unit is movably inserted into an inner space of a fixed housing. The up-and-down driving device includes: a driving means for moving the up-and-down driving unit in an up-and-down direction; a fixed-position compression spring main module including a fixed-position compression spring having one side fixed to a lower end of the housing and the other side supporting the up-and-down driving unit and mounted in a motion direction of the up-and-down driving unit; and a variable-position compression spring supplemental module including a variable-position compression spring having one side mounted rotatably to a side of the housing and the other side fastened rotatably to the up-and-down driving unit and configured to rotate while making a predetermined angle with the motion direction of the up-and-down driving unit.

7. 发明申请

US20190183340A1 EYE-EXAMINING APPARATUS IN WHICH VISIBLE-OPTICAL CHANNEL AND INFRARED-OPTICAL CHANNEL ARE INTEGRATED 审中-公开
公开(公告)号：US20190183340A1
公开(公告)日：2019-06-20
申请号：US16218750
申请日：2018-12-13
申请人： HUVITZ CO., LTD.
发明人： Jae Hong MO , Min Soo CHO , Min Su KIM
IPC分类号： A61B5/00 , A61B3/15 , A61B3/107
CPC分类号： A61B5/0035 , A61B3/107 , A61B3/156 , A61B5/0075 , A61B2562/0233
摘要： An eye-examining apparatus in which a visible light optical system for observing a shape of an examinee's eye and an infrared optical system for detecting a shape of the cornea of the examinee's eye are integrated. The eye-examining apparatus having an integrated optical system comprises: an infrared light source for irradiating a cornea of the examinee's eye with infrared light; a visible light source for irradiating the eye with visible light; an image detector both for detecting an image of the infrared light which is irradiated from the infrared light source and reflected from the cornea of the eye and for detecting an image of the visible light which is irradiated from the visible light source to the eye; and a visible light blocking filter inserted in an optical path of the visible light and the infrared light traveling toward the image detector for blocking the visible light.

8. 发明授权

US09107611B2 Optical coherence tomography device capable of controlling measuring position 有权
标题翻译：能够控制测量位置的光学相干断层摄影装置
公开(公告)号：US09107611B2
公开(公告)日：2015-08-18
申请号：US14198699
申请日：2014-03-06
申请人： HUVITZ CO., LTD.
发明人： Weon-Joon Lee , Joong-Jae Lee
IPC分类号： G01B9/02 , A61B3/10
CPC分类号： A61B3/102
摘要： An optical coherence tomography device (OCT) is capable of controlling a distance between an eye to be examined (object) and the OCT and accurately center-aligning the eye. A mire ring optical system emits a measuring mire ring light to an object to be examined. A dichroic mirror separates an optical path of illumination light reflected from the object from the optical path of the signal light originating from the tomographic image formation section and delivers a reflected image to an image formation section and a tomographic image formation section. An objective lens condenses light reflected from the object, and a controller calculates movement distance of the OCT from the difference between a position of the image of the mire ring light and a position of an optical axis of the OCT The OCT is then moved according to the calculated movement.
摘要翻译：光学相干断层摄影装置（OCT）能够控制被检眼（物体）与OCT之间的距离，并准确地对准眼睛。 Mire环光学系统向待检查的物体发射测量Mire环形光。分色镜将从物体反射的照明光的光路与来自断层图像形成部的信号光的光路分离，并将反射图像传送到图像形成部和断层图像形成部。物镜会聚物体反射的光，并且控制器计算出OCT的移动距离与雾化环光的图像的位置与OCT的光轴的位置之间的差异。然后根据计算运动。

9. 发明申请

US20230137102A1 METHOD FOR DIFFERENTIATING RETINAL LAYERS IN OCT IMAGE 有权
公开(公告)号：US20230137102A1
公开(公告)日：2023-05-04
申请号：US17966628
申请日：2022-10-14
申请人： HUVITZ CO., LTD.
发明人： Hyoung Uk KIM , Seong Yeol PARK
IPC分类号： G06T7/00 , G06T7/13
摘要： A method for differentiating retinal layers includes obtaining an optical coherence tomography retinal layer image of an eye to be examined and inputting it into a deep neural network, calculating probability P that each pixel is included in each layer from the inputted layer image, calculating probability P1(x,y) that a pixel is in or above (k−1)-th layer and probability P2(x,y) that the pixel is in or below k-th layer from probabilities P(x,y) that the pixel is included in each layer, calculating probability Fk−1,k(x,y) that the pixel becomes a boundary line between the (k−1)-th layer and the k-th layer from P1(x,y) and P2(x,y), obtaining a node cost Ck−1,k(x,y) of the pixel by multiplying Fk−1,k(x,y) with an image brightness change ΔI at the pixel, and determining the boundary line between the (k−1)-th and k-th layers by connecting coordinates (x,y) of the pixels where Ck−1,k(x,y) calculated for each position x is the maximum.

10. 发明申请

US20220160226A1 CHART PROJECTOR FOR TESTING VISUAL ACUITY 有权
公开(公告)号：US20220160226A1
公开(公告)日：2022-05-26
申请号：US17518913
申请日：2021-11-04
申请人： HUVITZ CO., LTD.
发明人： Jong Min LIM , Min Soo CHO
IPC分类号： A61B3/032 , A61B3/00 , A61B3/08
摘要： A chart projector for testing visual acuity capable of detecting a brightness of a visual acuity chart which is projected to an examined eye includes at least one image display device which produces visual acuity chart image; a beam splitter; and a photo sensor which detects a brightness of the chart image reflected from the beam splitter to determine a brightness of visual acuity chart image which passes the beam splitter and projected to the examined eye or which detects a brightness of the chart image which passes the beam splitter to determine a brightness of visual acuity chart image reflected from the beam splitter and projected to the examined eye.

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