Accommodative amplitude and speed measuring instrument
    1.
    发明授权
    Accommodative amplitude and speed measuring instrument 失效
    适应幅度和速度测量仪器

    公开(公告)号:US4618231A

    公开(公告)日:1986-10-21

    申请号:US582496

    申请日:1984-02-22

    CPC classification number: A61B5/161 A61B3/09

    Abstract: A novel instrument and method for measuring the accommodative amplitude and speed of the eye of a subject is described. The instrument for making the measurements according to the present invention comprises a pair of illuminated or luminous visual displays disposed for viewing along an optical axis, the images of the displays superimposed upon each other for viewing by a subject, one of the displays comprising a pattern having a plurality of distinct and recognizable orientations with respect to the axis along which it is viewed, an orientation generator for randomly and alternately generating one of the orientations for viewing by the subject, a switch operable by the subject for turning the displays off and indicating the observed orientation of the random pattern, and a recorder for recording the last displayed orientation and the time the displays were on or the time between presentation of one display and the correct identification of the other.

    Abstract translation: 描述了用于测量受试者的眼睛的调节幅度和速度的新型仪器和方法。 根据本发明的用于进行测量的仪器包括一对照明或发光的视觉显示器,其被布置为沿着光轴观看,所述显示器的图像叠加在一起以供对象观看,显示器中的一个显示器包括图案 具有相对于其所观察的轴线的多个不同且可识别的取向;定向发生器,用于随机和交替地产生用于被对象观看的方向中的一个,由对象操作的开关,用于使显示器关闭并指示 观察到的随机图案的取向,以及用于记录最后显示的方向的记录器和显示器所在的时间,或者显示一个显示器之间的时间与另一显示器的正确识别之间的时间。

    Aerial day/night refueling stations
    2.
    发明授权
    Aerial day/night refueling stations 失效
    空中日夜加油站

    公开(公告)号:US4398685A

    公开(公告)日:1983-08-16

    申请号:US242817

    申请日:1981-03-11

    CPC classification number: B64D39/00

    Abstract: An improved aerial refueling system, suitable for operation under nighttime or other limited visibility conditions, is described, and comprises a tanker aircraft with refueling boom depending rearwardly thereof, a receiver aircraft having a fuel receptacle for interconnection with the boom, means disposed on the tanker for illuminating the receiver aircraft with infrared light during hookup and refueling, infrared sensitive viewing means and an optical imaging device on the tanker through which the boom operator may view the boom and receiver aircraft to guide the boom into position for connection with the receiver aircraft.

    Abstract translation: 描述了一种适用于夜间或其他有限可见度条件下的运行的改进的空中加油系统,包括一个具有其后面的加油臂的油轮飞机,具有用于与悬臂相互连接的燃料接收器的接收器飞机,设置在油罐车上的装置 用于在连接和加油期间用红外线照射接收机飞行器,红外线感测观察装置和油罐车上的光学成像装置,通过该装置,动臂操作者可以通过该光学成像装置观察吊杆和接收器飞机,以将吊杆引导到与接收器飞行器连接的位置。

    Field test unit for windscreen optical evaluation
    3.
    发明授权
    Field test unit for windscreen optical evaluation 失效
    挡风玻璃光学评估现场测试单元

    公开(公告)号:US4310242A

    公开(公告)日:1982-01-12

    申请号:US136210

    申请日:1980-04-01

    Abstract: An apparatus for analyzing the deleterious characteristics of optically transparent bodies, including distortion, multiple imaging and birefringence. A beam of light is projected along an optical axis onto a beam splitter. The reflected segment passes through the transparent body and is then reflected back along nearly the same path toward the beam splitter by a retro-reflective screen lying at the image plane of the beam. The portion of the reflected beam passing directly through the beam splitter is detected by an optical sensor in substantial orientation with the axis of the beam reaching it. Distortions and multiple imaging are detected by shape changes and images, respectively, in a pattern of opaque areas superimposed on the originating beam. Birefringence is analyzed by polarizing the originating beam and observing the color pattern and intensity reaching the sensor.

    Abstract translation: 一种用于分析光学透明体的有害特性的装置,包括失真,多成像和双折射。 光束沿着光轴投影到分束器上。 反射段通过透明体,然后通过位于光束的像面处的回射屏幕沿着几乎相同的路径向分束器反射回来。 直接通过光束分离器的反射光束的部分由光学传感器以基本取向检测,光束的轴线到达光轴。 通过形状变化和图像分别以叠加在始发光束上的不透明区域的图案来检测畸变和多次成像。 通过偏振起始光束并观察到达传感器的颜色图案和强度来分析双折射。

    Contrast sensitivity function measurement chart and method
    4.
    发明授权
    Contrast sensitivity function measurement chart and method 失效
    对比灵敏度函数测量图和方法

    公开(公告)号:US4607923A

    公开(公告)日:1986-08-26

    申请号:US690214

    申请日:1985-01-10

    CPC classification number: A61B3/022 A61B3/063

    Abstract: A novel device and method for determining the contrast sensitivity of a subject is provided and comprises a test chart including a plurality of patches systematically organized in a predetermined array, each patch having a plurality of adjacent patterned areas, at least one of which is a pattern of alternate light and dark regions of predetermined contrast, and the remaining patterned areas are solid gray patterns of predetermined reflectance, each contrast pattern being characterized by a space average reflectance equal to the predetermined reflectance value of the adjacent gray patterned areas. The spatial frequency and contrast of the alternate dark and light regions may be varied in the array of patches. In the method for determining the visual contrast sensitivity of the vision system of a subject, a chart of the invention is displayed to the subject at successively shorter distances, and the greatest distance at which the subject can resolve each contrast pattern is determined and recorded.

    Abstract translation: 提供了用于确定对象的对比敏感度的新颖的装置和方法,并且包括测试图,其包括以预定阵列系统地组织的多个贴片,每个贴片具有多个相邻的图案化区域,其中至少一个是图案 的预定对比度的交替的亮和暗区域,其余的图案区域是预定反射率的实心灰色图案,每个对比图案的特征在于与相邻灰色图案区域的预定反射率值相等的空间平均反射率。 交替的暗区和亮区的空间频率和对比度可以在斑块阵列中变化。 在确定对象的视觉系统的视觉对比敏感度的方法中,本发明的图表以连续较短的距离显示给被摄体,并且确定并记录被摄体能够分辨每个对比度图案的最大距离。

    System for measuring angular deviation in a transparency
    5.
    发明授权
    System for measuring angular deviation in a transparency 失效
    用于测量透明度中角度偏差的系统

    公开(公告)号:US4377341A

    公开(公告)日:1983-03-22

    申请号:US242816

    申请日:1981-03-11

    CPC classification number: G01M11/00 G01B11/26 G01N21/41 G01N2021/9586

    Abstract: An improved system for measuring absolute angular deviation through transparencies, such as aircraft windscreens, uses an incoherent light source and a target configuration in the form of an opaque slide with a transparent "L"-shaped pattern. The positions of images of the legs of the "L" passed through the transparency are detected by CCD arrays for measurement of the azimuth and elevation components of angular deviation for each tested point on the transparency, uncontaminated by lateral displacement errors.

    Abstract translation: 用于测量通过透明度的绝对角度偏差的改进的系统,例如飞机挡风玻璃,使用非相干光源和具有透明“L”形图案的不透明滑块形式的目标配置。 透过透明度的“L”腿的图像的位置由CCD阵列检测,用于测量透明度上每个测试点的角度偏差的方位角和仰角分量,未受横向位移误差的污染。

    Method of measuring optical properties of a transparency
    6.
    依法登记的发明
    Method of measuring optical properties of a transparency 失效
    测量透明度的光学性质的方法

    公开(公告)号:USH315H

    公开(公告)日:1987-08-04

    申请号:US607090

    申请日:1984-05-04

    CPC classification number: G01M11/0242 G01M11/00 G01M11/0228 G01M11/0285

    Abstract: A method of measuring optical properties of a transparency uses a video camera for focusing and then refocusing an image of a point source of light transmitted through a test region when the transparency is first absent and then later present at the test region. The distance the camera needs to be moved together with the focal length of a focusing lens used in carrying out the method provide sufficient quantitative data to calculate the spherical optical power of the transparency. Also, the camera generates video images of the point source both before and after the transparency is present in the test region. These images are displayed on a screen containing a grid pattern which facilitates measurement of the displacement of the image from the center of the grid or from the optical axis due to the presence of prismatic deviation in the transparency. Given the earlier data and supplemented by the latter displacement quantity, the prismatic deviation of the transpareny can also be calculated.

    Device for measuring intraocular light scatter
    7.
    发明授权
    Device for measuring intraocular light scatter 失效
    用于测量眼内光散射的装置

    公开(公告)号:US4679917A

    公开(公告)日:1987-07-14

    申请号:US726568

    申请日:1985-04-24

    CPC classification number: A61B3/10

    Abstract: A novel optical device and method for measuring intraocular light scatter in a human vision system of a subject is described which comprises first and second light sources of respective predetermined intensities, the images of which are optically folded along a common optical axis and projected into the vision system of the subject, the first source being of intensity sufficient to generate intraocular haze in the vision system of the subject, the second source being movable in a plane substantially perpendicular to the axis along which its image is projected whereby the second source image as viewed by the subject may be selectively viewed with respect to the first source image to measure the apparent peripheral extent of the haze surrounding the first source image.

    Abstract translation: 描述了一种用于测量受试者的人体视觉系统中的眼内光散射的新型光学装置和方法,其包括各自预定强度的第一和第二光源,其图像沿着共同的光轴被光学折叠并投影到视觉中 所述第一源的强度足以在所述对象的视觉系统中产生眼内混浊,所述第二源可在基本上垂直于其投影图像的轴线的平面中移动,由此所述第二源图像 可以相对于第一源图像选择性地观看被摄体以测量围绕第一源图像的雾度的明显的外围范围。

    Portable visual function tester
    8.
    依法登记的发明
    Portable visual function tester 失效
    便携式视觉功能测试仪

    公开(公告)号:USH293H

    公开(公告)日:1987-06-02

    申请号:US869150

    申请日:1986-05-29

    CPC classification number: A61B3/028

    Abstract: A portable visual function tester and testing method is described for rapid and accurate measurement of several human vision parameters, including critical fusion frequency, stereopsis, Snellen visual acuity and visual resolution, cyclophoria, eye dominance, and lateral and vertical phoria, which comprises, first and second illuminated visual displays disposed for viewing by respective left and right eyes of a subject along respective parallel first and second optical axes, each display comprising an array of visual display patterns, one pattern of each display comprising a pair disposed for simultaneous viewing by the subject in the measurement of a corresponding vision parameter; the display patterns include an illuminated blinking disk for measurement of critical fusion frequency, a rectangular array of four-dot sets for measurement of stereopsis, an array of Snellen E designs of various sizes and orientations for measurement of visual acuity, and a resolution fan comprising a pattern of a plurality of radially extending alternate bright and dark luminance areas for measurement of minimum visual resolution; the visual display pairs include a first pair including a first circle with adjacent reference mark and a second circle with adjacent reference scale for measurement of cyclophoria, a second pair including two sets of oppositely oriented diagonal lines for determination of eye dominance, and a third pair including an illuminated dot and illuminated rectangular grid for testing of lateral and vertical phorias; suitable electronics are included for selectively illuminating the display patterns in pairs.

    Method for dynamically recording distortion in a transparency
    9.
    发明授权
    Method for dynamically recording distortion in a transparency 失效
    在透明度中动态记录失真的方法

    公开(公告)号:US4461570A

    公开(公告)日:1984-07-24

    申请号:US386488

    申请日:1982-06-09

    CPC classification number: G01N21/958 G01M11/00 G01N2021/9586

    Abstract: A method for dynamically recording distortion in a transparency includes a support fixture for mounting the transparency for movement about a predetermined horizontal or vertical axis, with a camera disposed in back of the transparency while a test target is disposed in front of it. The test target has a plurality of small light sources arranged in a rectangular matrix pattern toward which the camera is aimed through the transparency. By opening the camera shutter for a period of time as the transparency is moved through a predetermined angle, a photographic record of distortion at a plurality of regions in the transparency is produced.

    Abstract translation: 用于在透明体中动态记录失真的方法包括用于安装用于围绕预定水平或垂直轴线移动的透明体的支撑夹具,其中设置在透明体背面的照相机,同时将测试目标放置在其前面。 测试对象具有以矩形矩阵图案排列的多个小光源,相机通过该矩阵图案瞄准透明度。 当透明度移动预定角度时,通过打开相机快门一段时间,产生透明度的多个区域的失真照相记录。

    Method of measurement of haze in transparencies
    10.
    发明授权
    Method of measurement of haze in transparencies 失效
    投影胶片浊度测量方法

    公开(公告)号:US4687338A

    公开(公告)日:1987-08-18

    申请号:US463191

    申请日:1983-02-02

    CPC classification number: G01N21/47

    Abstract: A method of measuring haze of an aircraft transparency includes producing a first reading representative of the level of light scattered by an area of a transparency under test while on the aircraft when it is illuminated by a known light source, and producing a second reading representative of the level of light scattered by a predetermined, preferably worst haze condition, reference plate when it is illuminated by the light source in place of the transparency. Then, a ratio of the first and second readings is calculated to provide a quantitative measure proportional to the degree of haze in the transparency test area.

    Abstract translation: 一种测量飞行器透明度的雾度的方法包括:当通过已知的光源照射时,在飞机上产生一个代表被测试的透明度区域散射的光的水平的第一读数,并产生代表 当光源被光源照射而不是透明度时,通过预定的,优选最差的雾度条件散射的光的参考板。 然后,计算第一读数和第二读数的比率,以提供与透明度测试区域中的雾度成比例的定量测量。

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