TOMEY CORPORATION Patent applications |
Patent application number | Title | Published |
20150320309 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus comprises a light source | 11-12-2015 |
20150124261 | Multi-Channel Optical Coherence Tomography - An optical coherence tomography apparatus includes a multi-beam configuration unit comprising at least a first optical path having a first numerical aperture and a second optical path having a second numerical aperture. The multi-beam configuration unit orients the second optical path in a selected orientation in space relative to the first optical path. A scan system illuminates a sample with non-polarized light received from the multi-beam configuration unit and directs light returning from the sample to the first optical path and the second optical path. The multi-beam configuration unit directs light returning from the sample, along the first optical path and the second optical path, to an optical pathway leading to a processing system. The processing system performs optical coherence tomography motion analysis based on interference between light returning from the sample and a first reference signal. | 05-07-2015 |
20140327918 | OPTICAL COHERENCE TOMOGRAPHY - Provided is an optical tomographic device including a measurement optical system that irradiates light from a light source to inside a subject and guides reflected light therefrom; a reference optical system that guides the light from the light source as reference light; a calibration optical system that irradiates at least one calibration reflecting surface with light from the light source branched from the measurement or reference optical system, and guides the reflected light reflected by the calibration reflecting surface; a light-receiving element that receives the interfering light for measurement formed by synthesizing the reflected light guided by the measurement optical system and the reference light, and the interfering light for calibration formed by synthesizing the reflected light guided by the calibration optical system and the reference light; and an arithmetic logic unit that corrects the received interfering light for measurement by using an analysis result obtained by analyzing the received the interfering light for calibration. | 11-06-2014 |
20140152958 | Eye Refractive Power Measuring Apparatus and Calibration Method of Eye Refractive Power Measuring Apparatus - An eye refractive power measuring apparatus includes a light projecting optical system, a light receiving optical system, a focusing unit, a calibration optical system, a focus control unit, and an arithmetic unit. The arithmetic unit, based on a relation of a control signal obtained when a calibration beam is projected and a calibration value that is an output of a light receiving unit, and a correlation of a calibration value obtained in advance and eye refractive power, calculates a correlation of the control signal and the eye refractive power, and, based on a control signal obtained when measuring beam is projected, a measured value that is an output of the light receiving unit, and the correlation, calculates the eye refractive power. | 06-05-2014 |
20130293839 | OPHTHALMOLOGY APPARATUS - An ophthalmology apparatus may be provided with an input device, a processor, and an output device. The input device may be configured to input a corneal endothelial cell image to the processor. The corneal endothelial cell image can be obtained by photographing a corneal endothelial cell. The processor may be configured to extract a dark area from the corneal endothelial cell image input by the input device, and to analyze the extracted dark area. The output device may output a result of the analysis by the processor. | 11-07-2013 |
20130278898 | CORNEA IMAGING APPARATUS AND CORNEA IMAGING METHOD - A cornea imaging apparatus including: a collimation axis holding mechanism; an imaging mechanism; a Z-direction actuating means; an X-direction actuating means and a Y-direction actuating means; an inclination angle changing means that changes an inclination angle of an imaging center axis of the imaging mechanism against a collimation axis of an eye under examination; an endothelial configuration computing means that determines a corneal endothelial configuration; and a normal vector computing means that determines a normal vector direction at a given imaging position of the corneal endothelial configuration, wherein at the imaging position, the inclination angle and positions in the Z and X directions are set adjusted so as to align the imaging center axis of the imaging mechanism with the normal vector direction determined by the normal vector computing means. | 10-24-2013 |
20130229627 | OPHTHALMIC APPARATUS - An ophthalmic apparatus is provided with a light source, an optical measurement system, an optical reference system, an optical calibration system, a light receiving element, and a processor. The light receiving element receives an interference light for measurement produced by both the reflected light guided by the optical measurement system and the reference light guided by the optical reference system, and also receives an interference light for calibration produced by the calibration light guided by the optical calibration system and the reference light guided by the optical reference system. The processor determines a position of a measuring portion inside an eye to be examined by Fourier-analyzing the interference light for measurement and the interference light for calibration. | 09-05-2013 |
20090207376 | Apparatus for cross-sectional imaging of anterior ocular segment - An apparatus for cross-sectional imaging of an anterior ocular segment wherein a stationary cylindrical body disposed projecting out from a body of the apparatus, and an illuminating optical system and an imaging optical system are disposed within the cylindrical body with a front aperture of the cylindrical body as a common aperture thereof so as to be rotatable in unison about an eye-side optical axis of the illuminating optical system. At least one proximal direction reflecting mirror being disposed within an interior of the cylindrical body in proximity to the front aperture for reflecting scattered light by an examined eye on an optical axis of the imaging optical system to a direction proximate to an optical axis of the illuminating optical system. | 08-20-2009 |
20090149742 | APPARATUS AND METHOD FOR IMAGING ANTERIOR EYE PART BY OPTICAL COHERENCE TOMOGRAPHY - An optical coherence tomography (OCT) anterior eye part imaging apparatus includes a tomographic image obtaining unit obtaining a tomographic image of an anterior eye part of subject's eye in a depth direction by optical coherence tomography, an imaging unit imaging a frontal image of subject's eye, a display unit displaying the image of subject's eye, a corneal apex location detecting unit detecting a location of subject's eye, an alignment unit moving an apparatus body relative to the holder so that the location of corneal apex corresponds with a predetermined image obtaining location, a designating unit designating an area or a location where the tomographic image is obtained on subject's frontal image displayed on the display unit, and a scan line setting unit setting a scan line in the tomographic image obtaining unit on a straight line passing the corneal apex according to the designated area or location. | 06-11-2009 |
20080309872 | Ophthalmologic Instrument - The present invention provides an opthalmologic apparatus that can noninvasively measure the state of the lacrimal layer formed on the cornea surface and that can quantitatively measure the state of the lacrimal layer without utilizing a reflection image from the retina. | 12-18-2008 |