Abstract: An optical system splits light into signal light and reference light and detects interference light between scattered light of signal light from living body and reference light. A scanner performs first scan in which first cross section that intersects interested blood vessel is repeatedly scanned with signal light. An image forming part forms first cross sectional image expressing chronological variation of morphology of first cross section and phase image expressing chronological variation of phase difference based on detection results of interference light acquired during first scan. A blood vessel region specifying part specifies blood vessel region corresponding to interested blood vessel for first cross sectional image and phase image. A blood flow information generator generates blood flow information related to interested blood vessel based on blood vessel region of first cross sectional image and chronological variation of phase difference within blood vessel region of phase image.

Abstract: An ophthalmologic imaging apparatus that can follow up imaging for acquiring a cross sectional image by referring to a front image of an eye acquired in the past and scanning the same position as before with light, includes: a photographing part configured to photograph the eye and acquire a front image thereof; a cross sectional image forming part configured to scan the eye with light and form a cross sectional image thereof; a storage configured to store a first front image of the eye and a second front image acquired in follow up imaging executed with referring to the first front image; an information obtaining part configured to analyze the first and second front images and obtain misregistration information between these front images; and a calculator configured to calculate an evaluation value of an error in a scanning position in the follow up imaging based on the misregistration information.

Abstract: In an embodiment, cross sectional image storage stores a cross sectional image group including multiple cross sectional images each of which is associated with time. Phase image storage stores a phase image group including multiple phase images each of which is associated with time. Blood flow information storage stores a blood flow information group including multiple blood flow information each of which is related to blood flow in a blood vessel of the living body and is associated with time. Display synchronously displays a cross sectional image included in the cross sectional image group and a phase image included in the phase image group using time associated with the cross sectional image and the phase image, and displays a blood flow image that expresses multiple blood flow information. The display performs the same change as the change to the cross sectional image, the phase image and the blood flow image.

Abstract: In an embodiment, cross sectional image storage stores a cross sectional image group including multiple cross sectional images each of which is associated with time. Phase image storage stores a phase image group including multiple phase images each of which is associated with time. Blood flow information storage stores a blood flow information group including multiple blood flow information each of which is related to blood flow in a blood vessel of the living body and is associated with time. Display synchronously displays a cross sectional image included in the cross sectional image group and a phase image included in the phase image group using time associated with the cross sectional image and the phase image, and displays a blood flow image. The display performs the same change as the change to the change operation to the cross sectional image, the phase image and the blood flow image.

Abstract: An embodiment provides a new technique of ophthalmologic diagnostic imaging. An ophthalmologic imaging apparatus of an embodiment includes: an acquiring part configured to acquire three-dimensional image data of an eye by using optical coherence tomography; a designating part configured for designating partial image data that is a part of the three-dimensional image data corresponding to a specific site of the eye; a deforming part configured to deform the three-dimensional image data such that the partial image data is deformed into a predetermined shape to create new three-dimensional image data; a forming part configured to form cross-sectional image data based on the new three-dimensional image data; and a display controller configured to display an image based on the cross-sectional image data on a display means.

Abstract: A vehicle approach alert device for a saddle-ridden electric vehicle is a vehicle approach alert device for a saddle-ridden electric vehicle that is provided with a sound emitter that is attached on the vehicle body of a saddle-ridden electric vehicle having an electric motor in a power engine, and that emits an alert sound to a surrounding area for notifying the surrounding area of approach of the saddle-ridden electric vehicle, such that sound emission of the sound emitter is controlled, and the sound emitter is arranged so that the direction of sound emission is oriented diagonally downward and forward of the saddle-ridden electric vehicle.

Abstract: An ophthalmologic imaging apparatus includes: a first optical system that applies an accommodation stimulus to a subject's eye; a tomographic image forming unit that includes a second optical system that splits light from a light source into signal light and reference light, and detects interference light between the signal light having travelled via the subject's eye and the reference light, and creates a tomographic image of the subject's eye based on a detection result of the interference light; and an analyzer that compares a first tomographic image with a second tomographic image to acquire change information indicating a change in a tissue of the subject's eye due to an accommodation stimulus change. The first and second tomographic images are respectively created by the tomographic image forming unit for the subject's eye, to which first and second accommodation stimuli are respectively applied by the first and second optical systems.

Abstract: An ophthalmologic imaging apparatus that can follow up imaging for acquiring a cross sectional image by referring to a front image of an eye acquired in the past and scanning the same position as before with light, includes: a photographing part configured to photograph the eye and acquire a front image thereof; a cross sectional image forming part configured to scan the eye with light and form a cross sectional image thereof; a storage configured to store a first front image of the eye and a second front image acquired in follow up imaging executed with referring to the first front image; an information obtaining part configured to analyze the first and second front images and obtain misregistration information between these front images; and a calculator configured to calculate an evaluation value of an error in a scanning position in the follow up imaging based on the misregistration information.

Abstract: Provided is a vehicle approach notification device of a saddle-ridden electric-powered vehicle that outputs a notification sound for notifying the approach of a vehicle. The saddle-ridden electric-powered vehicle includes a front cover that covers the periphery of a head pipe of a vehicle body frame. The sound emission device is located inside the front cover, the front cover has an air opening for taking in air from an outside, and a ventilation passage that is a passage of the air from the air opening and is used for cooling at least one of a power engine of the saddle-ridden electric-powered vehicle and electric components, and the sound emission device is arranged in the ventilation passage.

Abstract: A motion detector 220 calculates the Doppler frequency shift amount based on the movement velocity of an eye E. A drive controller 230 calculates the modulation frequency of the intensity of output light M based on this Doppler frequency shift amount. A light source unit 201 outputs the light M in which the intensity is modulated with this modulation frequency. The light M is divided into a signal light S and a reference light R. Interference light L is generated by superimposing the signal light S passing through the eye E and the reference light R. Two polarized components of the interference light L have a phase difference of 180°, resulting from a quarter-wave plate 207. The polarized components L1, L2 which are divided by a polarization beam splitter 211 are detected by CCD 212, 213. A computer 250 forms a tomographical image based on these detection results.

Abstract: A vehicle approach alert device for a saddle-ridden electric vehicle is a vehicle approach alert device for a saddle-ridden electric vehicle that is provided with a sound emitter that is attached on the vehicle body of a saddle-ridden electric vehicle having an electric motor in a power engine, and that emits an alert sound to a surrounding area for notifying the surrounding area of approach of the saddle-ridden electric vehicle, such that sound emission of the sound emitter is controlled, and the sound emitter is arranged so that the direction of sound emission is oriented diagonally downward and forward of the saddle-ridden electric vehicle.

Abstract: A fundus observation apparatus according to an embodiment comprises: a photographing part that photographs the fundus of a subject eye; a forming part comprising an optical system that irradiates signal light onto the fundus and interferes reflected light of the signal light from the fundus with reference light via a reference path and detects the resulting interference light, wherein the forming part forms a tomographic image of the fundus based on the detection result; and an analyzing part that analyzes a photographed image of the fundus from the photographing part to delete predetermined low-frequency components from the photographed image.

Abstract: Provided is a vehicle approach notification device of a saddle-ridden electric-powered vehicle that outputs a notification sound for notifying the approach of a vehicle. The saddle-ridden electric-powered vehicle includes a front cover that covers the periphery of a head pipe of a vehicle body frame. The sound emission device is located inside the front cover, the front cover has an air opening for taking in air from an outside, and a ventilation passage that is a passage of the air from the air opening and is used for cooling at least one of a power engine of the saddle-ridden electric-powered vehicle and electric components, and the sound emission device is arranged in the ventilation passage.

Abstract: A stand device for a motorcycle includes an interlocking mechanism having a coil-formed stand spring connected to a stand at one end thereof. A spring support member has a spring support portion connected with the other end of the stand spring and is interlocked and connected to an operating element so that the position of the spring support portion can be changed according to a manual operation of an operating element. The position of the spring support portion determined according to the operation of the operating element toward the erect position side is so set that the stand spring is put in the state of urging the stand toward the erect position side.

Abstract: A motion detector 220 calculates the Doppler frequency shift amount based on the movement velocity of an eye E. A drive controller 230 calculates the modulation frequency of the intensity of output light M based on this Doppler frequency shift amount. A light source unit 201 outputs the light M in which the intensity is modulated with this modulation frequency. The light M is divided into a signal light S and a reference light R. Interference light L is generated by superimposing the signal light S passing through the eye E and the reference light R. Two polarized components of the interference light L have a phase difference of 180°, resulting from a quarter-wave plate 207. The polarized components L1, L2 which are divided by a polarization beam splitter 211 are detected by CCD 212, 213. A computer 250 forms a tomographical image based on these detection results.

Abstract: Provided is an optical image measuring apparatus capable of obtaining a high-accuracy image without being influenced by a movement of an object to be measured. Flash light is emitted from a xenon lamp (2) and converted into broad band light by an optical filter (2A). A polarization characteristic of the flash light is converted into linear polarization by a polarizing plate (3). Then, the flash light is divided into signal light (S) and reference light (R) by a half mirror (6). A polarization characteristic of the reference light (R) is converted into circular polarization by a wavelength plate (7). The signal light (S) and the reference light (R) are superimposed on each other by the half mirror (6) to produce interference light (L). A CCD (23) detects interference light having the same characteristic as that of the produced interference light (L).

Abstract: A stand device for a motorcycle includes an interlocking mechanism having a coil-formed stand spring connected to a stand at one end thereof. A spring support member has a spring support portion connected with the other end of the stand spring and is interlocked and connected to an operating element so that the position of the spring support portion can be changed according to a manual operation of an operating element. The position of the spring support portion determined according to the operation of the operating element toward the erect position side is so set that the stand spring is put in the state of urging the stand toward the erect position side.

Abstract: An optical image measurement device comprises: a light source configured to output a light having low temporal coherence and low spatial coherence; an optical system configured to split the light into a signal light and a reference light and superimpose the signal light having passed through a measured object and the reference light, thereby generating an interference light; a light receiver configured to receive the interference light and output an electric signal; and a forming part configured to form an image of the measured object based on the electric signal, wherein: the light receiver has a light receiving face on which a plurality of light receiving elements are arranged 2-dimensionally; and the optical system projects the interference light onto the light receiving face so that a size of the spatial coherent region of the interference light becomes equal to or larger than a size of the light receiving element.

Abstract: A stand device for a motorcycle includes an interlocking mechanism having a coil-formed stand spring connected to a stand at one end thereof. A spring support member has a spring support portion connected with the other end of the stand spring and is interlocked and connected to an operating element so that the position of the spring support portion can be changed according to a manual operation of an operating element. The position of the spring support portion determined according to the operation of the operating element toward the erect position side is so set that the stand spring is put in the state of urging the stand toward the erect position side.

Abstract: A stand device for a motorcycle includes an interlocking mechanism having a coil-formed stand spring connected to a stand at one end thereof. A spring support member has a spring support portion connected with the other end of the stand spring and is interlocked and connected to an operating element so that the position of the spring support portion can be changed according to a manual operation of an operating element. The position of the spring support portion determined according to the operation of the operating element toward the erect position side is so set that the stand spring is put in the state of urging the stand toward the erect position side.