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    • 1. 发明申请
    • Portable Retinal Camera and Image Acquisition Method
    • 便携式视网膜摄像机和图像采集方法
    • US20130033593A1
    • 2013-02-07
    • US13645763
    • 2012-10-05
    • Randal B. ChinnockFredrick G. BargootGeorge GrubnerJason P. JulianSarah LattaWilliam Weber
    • Randal B. ChinnockFredrick G. BargootGeorge GrubnerJason P. JulianSarah LattaWilliam Weber
    • H04N7/18
    • A61B3/14A61B3/0091
    • A camera for capturing an image of an object, for example an eye. The camera has at least two light sources and an image-sensing system having two image sensors. A multiple branch optical system transmits outgoing light from the light sources to the object, and transmits incoming light from the object to the image-sensing system. The multiple branch optical system includes an autofocusing element such as a variable power optical element that varies the focus of the incoming light. There is also an image display. There is a controller that controls the operation of the light sources, controls acquisition of images by the image-sensing system, and controls the display of images on the image display. The controller activates an autofocus light source and uses the resulting captured image to automatically adjust the image exposure parameters. The controller automatically adjusts the autofocusing element to improve the image focus, and then activates the second light source and acquires one or more images of the object while the second light source is activated.
    • 用于捕获物体(例如眼睛)的图像的照相机。 相机具有至少两个光源和具有两个图像传感器的图像感测系统。 多分支光学系统将来自光源的输出光发射到物体,并将来自物体的入射光发射到图像感测系统。 多分支光学系统包括诸如可变功率光学元件的自动聚焦元件,其改变入射光的焦点。 还有图像显示。 控制器控制光源的操作,控制图像感测系统的图像采集,并控制图像显示上的图像显示。 控制器激活自动对焦光源,并使用得到的拍摄图像自动调整图像曝光参数。 控制器自动调整自动对焦元件以改善图像焦点,然后激活第二个光源并在第二个光源激活时获取对象的一个​​或多个图像。
    • 7. 发明授权
    • Ocular surface interferometry (OSI) devices and systems for imaging and measuring ocular tear film layer thickness(es)
    • 用于成像和测量眼泪膜层厚度的眼表干涉测量(OSI)装置和系统
    • US08215774B2
    • 2012-07-10
    • US12798324
    • 2010-04-01
    • Donald R. KorbWilliam L. WeberRandal B. ChinnockBenjamin T. GravelyStephen M. GrenonMichael Zelina
    • Donald R. KorbWilliam L. WeberRandal B. ChinnockBenjamin T. GravelyStephen M. GrenonMichael Zelina
    • A61B3/14A61B3/10
    • A61B3/101A61B3/0025A61B3/0041A61B3/1005A61B3/14G06T7/0012G06T2207/30041
    • Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). The measured TFLT can be used to diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image. The imaging device can also be focused on the lipid layer of the tear film to capture a second image containing the background signal(s) present in the first image. The second image can be subtracted from the first image to reduce and/or eliminate the background signal(s) in the first image to produce a resulting image. The resulting image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT).
    • 公开了用于测量眼泪膜的泪膜层厚度(TFLT),包括脂质层厚度(LLT)和/或水层厚度(ALT)的眼表干涉测量(OSI)装置,系统和方法。 测量的TFLT可用于诊断干眼综合征(DES)。 在某些公开的实施例中,可以控制多波长光源以照射眼泪膜。 从多波长光源发射的光在泪膜中经历光波干涉相互作用。 成像装置可以集中在泪膜的脂质层上,以捕获与第一图像中的背景信号结合的来自泪膜的镜面反射光的光波干涉相互作用。 成像装置还可以聚焦在泪膜的脂质层上,以捕获包含存在于第一图像中的背景信号的第二图像。 可以从第一图像中减去第二图像以减少和/或消除第一图像中的背景信号以产生所得图像。 可以对所得图像进行处理和分析,以测量泪膜层厚度(TFLT),包括脂质层厚度(LLT)和/或水层厚度(ALT)。
    • 9. 发明授权
    • Polarized optical probes
    • 极化光学探针
    • US07187442B2
    • 2007-03-06
    • US10835747
    • 2004-04-30
    • Randal B. ChinnockJeffrey S. Melanson
    • Randal B. ChinnockJeffrey S. Melanson
    • G01J4/00
    • G01J4/04G01N21/21
    • A variably-polarizing optical probe assembly. The assembly includes an optical probe having one or more optical light delivery channels that emit incident light from the sample end of the probe toward a sample being investigated, and one or more optical light-receiving channels that receive incident light from the sample. A variably-polarizing substrate assembly is coupled to the sample end of the probe. The substrate assembly includes an optically transmitting substrate and one or more discrete polarizer areas on a face of the substrate, each such polarizer area defining a polarization orientation, with the polarizer areas together defining one or more different polarization orientations. The substrate assembly is arranged relative to the probe such that one polarizer area covers at least one light delivery channel and one polarizer area covers at least one light-receiving channel.
    • 可变偏振光学探针组件。 组件包括具有一个或多个光学传输通道的光学探针,其将从探针的样品端朝向被研究的样品发射入射光,以及一个或多个接收来自样品的入射光的光接收通道。 可变偏振衬底组件耦合到探针的样品端。 衬底组件包括光学透射衬底和在衬底的表面上的一个或多个离散偏振器区域,每个这样的偏振器区域限定极化取向,偏振器区域一起限定一个或多个不同的偏振取向。 衬底组件相对于探针布置,使得一个偏振器区域覆盖至少一个光输送通道,并且一个偏振器区域覆盖至少一个光接收通道。