公开(公告)号：US09814548B2

公开(公告)日：2017-11-14

申请号：US15322940

申请日：2016-04-05

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Joo Beom Eom ,  Jaesung Ahn ,  Byeong Il Lee ,  In Hee Shin ,  Anjin Park ,  Byeong Ha Lee

IPC: A61C9/00 ,  G01B11/25 ,  A61B5/00 ,  A61B1/00 ,  A61B1/247

CPC classification number: A61C9/006 ,  A61B1/00172 ,  A61B1/0019 ,  A61B1/247 ,  A61B5/0062 ,  A61B5/0088 ,  A61C9/0066 ,  A61C9/008 ,  G01B11/25 ,  G01B11/2518

Abstract: The present invention relates to a three-dimensional oral cavity scan device for a digital impression that obtains a three-dimensional image by processing a two-dimensional image acquired by photographing a three-dimensional subject in an oral cavity. The device includes: a pattern mask converting parallel light incident thereto into structured light; a piezoelectric plate where a mechanical vibration is generated on a surface thereof by an AC voltage applied thereto; and a power supply unit applying the AC voltage to the piezoelectric plate, wherein the piezoelectric plate moves the pattern mask in a longitudinal direction of the piezoelectric plate by using the mechanical vibration. The device can reduce noise and vibration by moving the pattern mask with an electrical method. In addition, the device can accurately measure depth of teeth by electrically controlling a focal length of structured light projected on the teeth.

公开(公告)号：US09686484B2

公开(公告)日：2017-06-20

申请号：US14400356

申请日：2014-09-02

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Byeong Il Lee ,  In Hee Shin ,  Jae Seok Park ,  Joo Beom Eom ,  Hyung Ju Park ,  Seok Ki Kim

IPC: G01N21/64 ,  A61B5/00 ,  H04N5/33 ,  H04N5/232 ,  H04N9/31

CPC classification number: H04N5/332 ,  A61B5/0033 ,  A61B5/0059 ,  A61B5/0071 ,  A61B5/7225 ,  A61B5/7445 ,  G01N21/6456 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/125 ,  H04N5/23293 ,  H04N9/3179

Abstract: Provided is an apparatus for acquiring and projecting a broadband image. The apparatus includes a probe unit provided with a white light source unit configured to emit white light for acquiring a visible light image to a subject, a fluorescence excitation light source unit configured to emit fluorescence excitation light for acquiring an invisible light fluorescence image, an image acquisition unit configured to receive an invisible light fluorescence image signal for the subject, and an image projection unit configured to project an image onto the subject; and an image processing unit configured to process an image received from the image acquisition unit. This apparatus may simultaneously acquire and display the visible light image and the invisible light fluorescence image.

公开(公告)号：US11497400B2

公开(公告)日：2022-11-15

申请号：US16610533

申请日：2018-11-30

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Jaesung Ahn ,  Hyeong Ju Park ,  Anjin Park ,  Joo Beom Eom ,  Jonghyun Eom ,  Hong Lyel Jung

IPC: A61B5/00 ,  A61B5/01 ,  A61N5/06 ,  G02B5/20 ,  G02B13/14 ,  G02B27/14

Abstract: The present invention relates to a hybrid imaging system for photodiagnosis and phototherapy and, more particularly, to a hybrid imaging system for photodiagnosis and phototherapy, which simultaneously acquires a visible ray image or a near-infrared ray image and a lonq wave infrared ray image by using an optical method. The hybrid imaging system for photodiagnosis and phototherapy according to the present invention includes a light distribution unit, a visible ray/near-infrared ray measurement unit, a long wave infrared ray measurement unit, and a light source unit, thereby simultaneously and quickly extracting a visible ray image, a near-infrared ray image, and a long wave infrared ray image without mutual distortion.

公开(公告)号：US10987049B2

公开(公告)日：2021-04-27

申请号：US14883666

申请日：2015-10-15

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Byeong-il Lee ,  In Hee Shin ,  Joo Beom Eom ,  Woosub Song

IPC: A61B5/00

Abstract: Disclosed herein is a method for quantifying a pigmented lesion using Optical Coherence Tomography (OCT). The method includes (a) irradiating light and receiving an interference signal produced by reflection of the light from first and second boundary layers of a pigmented lesion; and (b) calculating size information of the pigmented lesion using phase information of the interference signal. According to embodiments of the present invention, there is an advantage of allowing calculation of size information of a pigmented lesion using OCT, by increasing a measurement range in the axial direction to which beams are irradiated.