OCULAR-PERFORMANCE-BASED HEAD IMPACT MEASUREMENT APPLIED TO ROTATIONALLY-CENTERED IMPACT MITIGATION SYSTEMS AND METHODS

    公开(公告)号:US20190167095A1

    公开(公告)日:2019-06-06

    申请号:US16264242

    申请日:2019-01-31

    摘要: A system or method for measuring human ocular performance can be implemented using an eye sensor, a head orientation sensor, and an electronic circuit. The device is configured for measuring vestibulo-ocular reflex, pupillometry, saccades, visual pursuit tracking, vergence, eyelid closure, dynamic visual acuity, retinal image stability, foveal fixation stability, focused position of the eyes or visual fixation of the eyes at any given moment and nystagmus. The eye sensor comprises a video camera that senses vertical movement and horizontal movement of at least one eye. The head orientation sensor senses pitch and yaw in the range of frequencies between 0.01 Hertz and 15 Hertz. The system is implemented as part of an impact reduction helmet that comprises an inner frame having interior pads configured to rest against a person's head and one or more shock absorption elements attached between the inner frame and the spherical shell that couple the spherical shell to the inner frame. The spherical shell has a circular geometry, that when viewed horizontally at its horizontal midplane, includes a center point that is the rotational center of the spherical shell. The one or more shock absorption elements are sized to provide greater spacing between the inner frame and the spherical shell at the sides and rear of the spherical shell than at the front of the spherical shell. The one or more shock absorption elements are sized to configure the alignment of the rotational center of the spherical shell with the proximate rotational center of the wearer's head.

    OCULAR FUNDUS IMAGING SYSTEM
    3.
    发明申请

    公开(公告)号:US20180064334A1

    公开(公告)日:2018-03-08

    申请号:US15551973

    申请日:2016-02-25

    发明人: Yusuke IZAWA

    IPC分类号: A61B3/12 A61B3/00 A61B3/15

    摘要: [Problem] To allow imaging light to be appropriately received by a second camera in the case where a first imaging mode (color imaging mode) is changed to a second imaging mode (autofluorescence imaging mode).[Solution] In the first imaging mode, using a dichroic mirror 30 allows light LB to be received by both a first camera C1 and a second camera C2. In the second imaging mode, using a transparent glass 31 allows light LB to be received by the second camera C2. With this configuration, both in the first imaging mode and in the second imaging mode, light LB from an ocular fundus is appropriately received by the second camera C2 whereby an appropriate ocular fundus image can be taken.

    Wavefront Measuring Method for Adaptive Optics System

    公开(公告)号:US20170290507A1

    公开(公告)日:2017-10-12

    申请号:US15092073

    申请日:2016-04-06

    发明人: Koji NOZATO

    摘要: A method, a controller, and a non-transitory medium for controlling an optical-image pickup apparatus. Receiving quality data representative of quality of wavefront data. Comparing the quality data to a threshold. Performing normal adaptive optics feedback if the wavefront data is of sufficient quality. Performing an initial adjustment if the wavefront data is not of sufficient quality. The initial adjustment comprising sending control information to modify the optical path in which light is radiated onto a subject. After the initial adjustment, receiving new quality data that is based on new wavefront data after the optical path has been modified. Performing the normal adaptive optics feedback if the quality information indicates that the wavefront data is of sufficient quality. Re-performing the initial adjustment if the new quality information indicates that the wavefront data is not of sufficient quality.

    Device and method for imaging an ocular fundus
    6.
    发明授权
    Device and method for imaging an ocular fundus 有权
    眼底成像的装置和方法

    公开(公告)号:US09549672B2

    公开(公告)日:2017-01-24

    申请号:US14346637

    申请日:2012-09-21

    申请人: CARL ZEISS AG

    摘要: An appliance for recording an image of an ocular fundus includes an irradiating device with a radiation source and optical components for generating an illumination strip. A scanning device is set up to cause a scanning movement of the illumination strip for the purpose of scanning the ocular fundus. An optoelectronic sensor senses detection light issuing from the ocular fundus. The optoelectronic sensor has a plurality of sensor rows and is set up such that charges contained in one sensor row are each shifted, with a time delay, into a further sensor row. A control means is connected to the scanning device and/or to the optoelectronic sensor and is set up to control the scanning movement and/or the time delay.

    摘要翻译: 用于记录眼底图像的装置包括具有辐射源的照射装置和用于产生照明条的光学部件。 扫描装置设置成为了扫描眼底而引起照明条的扫描移动。 光电传感器感测从眼底发出的检测光。 光电传感器具有多个传感器行,并且被设置成使得包含在一个传感器行中的电荷分别以时间延迟移动到另一传感器行中。 控制装置连接到扫描装置和/或连接到光电传感器,并被设置为控制扫描运动和/或时间延迟。

    Apparatus and method for imaging an eye
    7.
    发明授权
    Apparatus and method for imaging an eye 有权
    眼睛成像装置和方法

    公开(公告)号:US09521950B2

    公开(公告)日:2016-12-20

    申请号:US14251631

    申请日:2014-04-13

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

    摘要: A slit lamp mounted eye imaging, a slit lamp integrated, a handheld, OCT integrated, or attached to a separate chinrest-joystick assembly apparatus and method for producing a wide field and/or magnified views of the posterior or the anterior segments of an eye through an undilated or dilated pupil is disclosed. The apparatus images sections and focal planes and utilizes an illumination system that uses one or more LEDs, shifting optical elements, flipping masks, and/or aperture stops where the light can be delivered into the optical system on optical axis or off axis from center of optical system and return imaging path from the eye, creating artifacts in different locations on the eye image. Image processing is employed to detect and eliminate artifacts and masks from images. The apparatus can be used in combination with an OCT, microscope and can be disposed in a hand-held housing for hand-held use.

    摘要翻译: 集成有狭缝灯的眼睛灯,一体化的狭缝灯,手持式的,集成的OCT,或连接到单独的chinrest-joystick组装装置和方法,用于产生眼睛的后部或前部的宽视场和/或放大视图 通过未扩张或扩张的瞳孔被公开。 设备图像部分和焦平面并且利用使用一个或多个LED,移动光学元件,翻转掩模和/或孔径光阑的照明系统,其中光可以在光轴上离开光学系统或从轴的中心离开 光学系统和从眼睛返回成像路径,在眼睛图像上的不同位置创建伪影。 采用图像处理来检测和消除图像中的伪像和掩模。 该装置可以与OCT,显微镜组合使用,并且可以放置在用于手持使用的手持外壳中。

    Pupil detection method, corneal reflex detection method, facial posture detection method, and pupil tracking method
    8.
    发明授权
    Pupil detection method, corneal reflex detection method, facial posture detection method, and pupil tracking method 有权
    瞳孔检测方法,角膜反射检测方法,面部姿态检测方法和瞳孔跟踪方法

    公开(公告)号:US09514538B2

    公开(公告)日:2016-12-06

    申请号:US14402952

    申请日:2013-05-24

    发明人: Yoshinobu Ebisawa

    摘要: A pupil detection method includes a step of acquiring images by taking a facial image of a subject using each of a left camera and a right camera, a step of extracting one or more image candidate points serving as candidates for pupils from the images, a step of extracting points corresponding to a combination of image candidate points corresponding to the same point in a three-dimensional space as space candidate points, a step of selecting a pair of two space candidate points from the extracted space candidate points and calculating a distance between the selected pair, a step of excluding a pair of space candidate points where the calculated distance is not within a specified range, and a step of determining one or more pairs of space candidate points from the pairs not excluded and determining that a pair of pupils of the subject exist at the positions.

    摘要翻译: 瞳孔检测方法包括通过使用左摄像机和右摄像机中的每一个拍摄对象的面部图像来获取图像的步骤,从图像中提取用作瞳孔候选的一个或多个图像候选点的步骤,步骤 提取与空间候选点相对应的与三维空间中的同一点对应的图像候选点的组合的点;从所提取的空间候选点中选择一对两个空格候补点的步骤, 选择对,除去计算出的距离不在规定范围内的一对空间候补点的步骤,以及从未排除的对确定一对或多对空间候选点的步骤,并且确定一对瞳孔 主题存在于职位上。