公开(公告)号：US20170238799A1

公开(公告)日：2017-08-24

申请号：US15434630

申请日：2017-02-16

申请人： Tomey Corporation

发明人： Guangchun BIAN ,  Takashi KAMO

IPC分类号： A61B3/14 ,  G06T7/20 ,  G06T7/00

CPC分类号： A61B3/1005 ,  A61B3/0025 ,  A61B3/14 ,  A61B3/165 ,  G02B27/48

摘要： An ophthalmic device is provided with an illumination optical system configured to irradiate light irradiated from a light source as parallel light to a subject's eye at an oblique angle, the light source is configured to emit coherent light; an image capturing optical system including a light receiving element and configured to capture a reflected image by receiving first reflected light and second reflected light by the light receiving element, the first reflected light being reflected from an anterior surface of a cornea of the subject's eye, the second reflected light being different from the first reflected light and reflected from a posterior surface of the cornea of the subject's eye; and a controller configured to calculate a thickness of the cornea by using the reflected image captured by the image capturing optical system.

公开(公告)号：US20200260953A1

公开(公告)日：2020-08-20

申请号：US16784190

申请日：2020-02-06

申请人： Tomey Corporation

发明人： Guangchun BIAN ,  Hideo TAKATA ,  Shaolang CHEN

IPC分类号： A61B3/14 ,  A61B3/00 ,  A61B3/10

摘要： An ophthalmic device including a photographing optical system that illuminates and photographs an eye to be examined, a reference movement control unit that automatically moves the photographing optical system to a reference position for photographing a reference region in the eye to be examined; and a displacement movement control unit that automatically moves the photographing optical system to a displacement position different from the reference position.

公开(公告)号：US20180058978A1

公开(公告)日：2018-03-01

申请号：US15680287

申请日：2017-08-18

申请人： Tomey Corporation

发明人： Yuichiro NAKATA ,  Chihiro KATO ,  Nobuyori AOKI ,  Guangchun BIAN ,  Koji YAMAGISHI ,  Yoshito GOTO

IPC分类号： G01M11/02

CPC分类号： G01M11/0207 ,  G01M11/0228 ,  G01M11/0278 ,  G02C7/041

摘要： A lensmeter includes a light emission portion, a light reception portion, a storage unit, a display unit and a display control unit. The light emission portion emits light so as to radiate the light onto a lens-to-be-inspected. The light reception portion receives the light transmitted through the lens-to-be-inspected to measure an optical characteristic of the lens-to-be-inspected. The storage unit stores a measured value of the optical characteristic of the lens-to-be-inspected. The display unit displays the measured value of the optical characteristic of the lens-to-be-inspected stored in the storage unit. The display control unit causes the display unit to display a target pattern including at least two different colors, and changes the target pattern in accordance with the measured value stored in the storage unit.

公开(公告)号：US20180052075A1

公开(公告)日：2018-02-22

申请号：US15676138

申请日：2017-08-14

申请人： Tomey Corporation

发明人： Takeshi SENO ,  Chihiro KATO ,  Yuichiro NAKATA ,  Nobuyori AOKI ,  Guangchun BIAN ,  Makoto TSUKAMOTO

IPC分类号： G01M11/02

CPC分类号： G01M11/0228 ,  G01M11/0214 ,  G01M11/0235 ,  G01M11/0257 ,  G01M11/0285 ,  G01M11/04 ,  G01N21/958

摘要： A lensmeter includes a light emission portion configured to emit light so as to radiate the light onto a lens-to-be-inspected, and a light reception portion configured to receive the light transmitted through the lens-to-be-inspected to measure an optical characteristic of the lens-to-be-inspected. The light emission portion includes a measurement light source configured to emit green light or red light for measurement of refractive power of the lens-to-be-inspected, a first inspection light source configured to emit ultraviolet light, and a second inspection light source configured to emit blue light. The light reception portion is configured to selectively receive lights from the measurement light source, the first inspection light source and the second inspection light source respectively.