| Patent application number | Description | Published |
|---|
| 20080284445 | POTENTIAL MEASUREMENT APPARATUS AND IMAGE FORMING APPARATUS - A potential measurement apparatus is provided which can suitably maintain the oscillation state of an oscillator including a detection electrode and stably measure the potential of a measurement object. The potential measurement apparatus includes a bearing part, an elastic supporting part supported by the bearing part, an oscillator movably supported by the elastic supporting part, detection electrodes installed in the oscillator, a drive mechanism driving the oscillator and a signal detection unit. The signal detection unit is connected to the detection electrodes to detect electrical signals appearing in the detected electrodes. A stress detecting element for generating an electric signal according to the stress of the elastic suspension part | 11-20-2008 |
| 20090091766 | OPTICAL COHERENCE TOMOGRAPHIC APPARATUS - An optical coherence tomographic apparatus wherein a reference light path includes at least a first reference light path and a second reference light path having an optical path length shorter than that of the first reference light path, wherein first tomographic information of the object at a first inspection position based on the optical interference using the first reference light path and second tomographic information of the object at a second inspection position based on the optical interference using the second reference light path, are acquired, the second inspection position being shallower than the first inspection position with respect to a depth direction of the object, and wherein a positional deviation a tomographic image at the first inspection position obtained based on the first tomographic information is corrected using the second tomographic information. | 04-09-2009 |
| 20090285354 | OPTICAL COHERENCE TOMOGRAPHIC IMAGING DEVICE AND IMAGING METHOD OF OPTICAL COHERENCE TOMOGRAPHIC IMAGE - An optical tomographic imaging device and the like which suppress influence in the case of a measuring beam being truncated by an iris, and can ensure reliability of a tomographic image which is acquired, when imaging the tomographic image of a retina in an eyeground of an examined eye. An optical tomographic imaging device is configured to have an observation unit observing a state of irradiating an examined object with the measuring beam, and imaging a state of the measuring beam being incident on the examined object as an observation image, a recording unit recording the observation image by linking the observation image with a tomographic image by the optical tomographic imaging device, and an evaluating unit evaluating reliability of the tomographic image which is linked with the observation image based on the observation image imaged in the observation unit. | 11-19-2009 |
| 20100002241 | OPTICAL COHERENCE TOMOGRAPHIC IMAGING APPARATUS AND OPTICAL COHERENCE TOMOGRAPHIC IMAGING METHOD - An optical coherence tomographic imaging apparatus which has a light intensity varying portion provided on a first optical path for guiding a measuring beam to an object for varying an intensity of the measuring beam; an illumination condition varying portion for varying an illumination condition of the measuring beam that has passed through the light intensity varying portion for the object between a first illumination condition in which a center part of the measuring beam is not blocked and a second illumination condition in which the center part of the measuring beam is blocked; and an image forming portion for weighting a first tomographic image acquired in the first illumination condition and a second tomographic image acquired in the second illumination condition and composing the weighted first second tomographic images to form a third tomographic image. | 01-07-2010 |
| 20100019779 | POTENTIAL MEASUREMENT APPARATUS AND IMAGE FORMING APPARATUS - A potential measurement apparatus for measuring a surface potential of an object of measurement detects a change in electric charge induced at a detection electrode due to electrostatic induction by changing a distance between the detection electrode and the object of measurement in accordance with a predetermined period, using a neutral distance as reference, as a signal representing a change in electric current. The potential measurement apparatus includes a first detection unit for detecting a signal representing a fundamental period of the change in electric current and a signal representing a second harmonic period, a second detection unit for detecting information representing a capacitance between the detection electrode at the neutral distance and the object of measurement and an arithmetic unit for computationally obtaining information on the surface potential of the object of measurement, with eliminating an influence of the neutral distance and the capacitance, according to an outcome of detection of the first detection unit and an outcome of detection of the second detection unit. | 01-28-2010 |
| 20100103374 | CONNECTION ADAPTER, OPTICAL TOMOGRAPHIC IMAGING APPARATUS, PROGRAM FOR EXECUTING IMAGING METHOD AND MEMORY DEVICE FOR THE PROGRAM - Provided is a connection adapter that is capable of constituting an optical tomographic imaging apparatus having a small installation space and high use efficiency. A connection adapter is disposed between the fundus camera main body portion and a camera portion to be attached to the fundus camera main body portion for imaging a surface image of a fundus as an object in an optical tomographic imaging apparatus, and connects them in a detachable manner. The connection adapter includes: a first light guide unit for guiding tomographic image measuring beams guided from the fundus camera main body portion for imaging the tomographic image to a tomographic imaging portion; and a second light guide unit for guiding fundus image measuring beams guided from the fundus camera main body portion for imaging the surface image of the fundus to the camera portion. | 04-29-2010 |
| 20100165289 | OPTICAL TOMOGRAPHIC IMAGING METHOD AND APPARATUS - An optical tomographic imaging method is provided in which light from a light source is split into a measuring beam and a reference beam, the measuring beam being moved by a scanning optical system and guided to an object to be examined, the reference beam being guided to a reference mirror, and in which a tomogram of the object is generated from a return beam of the measuring beam reflected or scattered by the object and the reference beam reflected by the reference mirror. The method includes acquiring longitudinal sectional information on the object, calculating depth-position information on the object from the longitudinal sectional information, and acquiring a three-dimensional surface image of the object by controlling a reference-path length defined by the reference mirror and a scanning operation of the scanning optical system in accordance with the depth-position information on the object. | 07-01-2010 |
| 20100165291 | IMAGE ACQUISITION APPARATUS AND IMAGE ACQUISITION METHOD USING OPTICAL COHERENCE TOMOGRAPHY - An image acquisition apparatus that uses optical coherence tomography includes a scanning unit provided within a light path that guides signal light to be incident on an examination object towards the examination object and configured to scan the signal light in a main scanning direction; and a control unit configured to control the scanning unit such that an integration time of an optical interference signal per pixel in at least one predetermined area other than opposite ends, in the main scanning direction, of an image acquisition region scanned by a plurality of main scan lines is increased relative to that of an area other than the predetermined area. | 07-01-2010 |
| 20100321700 | OPTICAL COHERENCE TOMOGRAPHIC IMAGING APPARATUS AND OPTICAL COHERENCE TOMOGRAPHIC IMAGING METHOD - A beam diameter varying portion varies a first beam diameter of a measuring beam incident on an optical portion to a second beam diameter larger than the first beam diameter. An adjustment portion adjusts a condensing position of the measuring beam on the optical portion based on intensity information of a return beam from a position of an inspection object with the first beam diameter. The beam diameter is varied from the first to the second beam diameter by the beam diameter varying portion at the position adjusted by the adjustment portion to cause the measuring beam having the second beam diameter to be incident. A condensing position can be adjusted in a relatively short time because the measuring beam small in beam diameter is used, and a combined beam can be acquired with high transverse resolution because the measuring beam large in beam diameter is used. | 12-23-2010 |
| 20110096293 | ADAPTIVE OPTICS APPARATUS AND IMAGING APPARATUS INCLUDING THE SAME - An adaptive optics apparatus includes a first conversion unit configured to convert a polarization direction of one of two polarization components of light to a polarization direction of the other of the polarization components, the light being emitted by a light source; a light modulation unit configured to modulate the two polarization components of light converted by the first conversion unit in the polarization directions that have been converted; a second conversion unit configured to convert directions of polarization components of the light modulated by the light modulation unit to directions that intersect with each other; and an irradiation unit configured to irradiate the object with the light that is converted by the light modulation unit. | 04-28-2011 |
| 20110096337 | ADAPTIVE OPTICS APPARATUS AND IMAGING APPARATUS INCLUDING THE SAME - An adaptive optics apparatus includes a light modulation unit configured to modulate each of two polarization components of light at a position that is optically conjugate to an object, the light being emitted by a light source; and an irradiation unit configured to irradiate the object with light that is modulated by the light modulation unit. | 04-28-2011 |
| 20110102740 | ADAPTIVE OPTICAL APPARATUS AND IMAGING APPARATUS HAVING THE SAME - An adaptive optical apparatus includes a wavelength separation unit configured to separate a beam emitted from a light source into a plurality of wavelength band beams, a plurality of light modulation units configured to modulate the respective plurality of wavelength band beams, a wavelength combining unit configured to combine the beams modulated by the plurality of light modulation units into a beam, and an illumination unit configured to illuminate a measured object with the beam output from the wavelength combining unit. | 05-05-2011 |
| 20110102741 | LIGHT IRRADIATION APPARATUS, ADAPTIVE OPTICS APPARATUS, AND IMAGING APPARATUS INCLUDING THE SAME - A light irradiation apparatus includes an optical power acquiring unit configured to acquire an optical power of light emitted by a light source and with which an object is irradiated; an optical power adjusting unit configured to adjust the optical power of light emitted by the light source to a predetermined optical power in accordance with an acquisition result obtained by the optical power acquiring unit; and an irradiation unit configured to irradiate the object with the light that is adjusted by the optical power adjusting unit. | 05-05-2011 |
