Waveguide sensor with nanoporous surface layer

    公开(公告)号:US10197499B2

    公开(公告)日:2019-02-05

    申请号:US15093163

    申请日:2016-04-07

    Abstract: A waveguide sensor system is provided. The system includes a light source and a waveguide formed from a light transmitting material. Light from the light source enters the waveguide at an input area and travels within the waveguide by total internal reflection to an analyte area and light to be analyzed travels within the waveguide from the analyte area by total internal reflection to an output area. An optical sensor is coupled to the output area and is configured to interact with the light to be analyzed. The system includes a plurality of pores located along the outer surface within the analyte area and formed in the light transmitting material of the waveguide, and the pores are configured to enhance light interaction with the analyte within the analyte area.

    GLASS WAVEGUIDE SPECTROPHOTOMETER
    4.
    发明申请
    GLASS WAVEGUIDE SPECTROPHOTOMETER 审中-公开
    玻璃波导分光光度计

    公开(公告)号:US20160265974A1

    公开(公告)日:2016-09-15

    申请号:US14641912

    申请日:2015-03-09

    Abstract: A spectrophotometer optics system is provided. The spectrophotometer optics system includes an optical sensing array and an optical waveguide including an input side and an output side. The input side of the optical waveguide receives input light and the optical sensing array is located at the output side of optical waveguide. The optical waveguide is configured to carry light to be analyzed by total internal reflection to the output side of the optical waveguide and to direct the light to be analyzed toward the optical sensing array. The spectrophotometer optics system includes an optical dispersive element configured to separate the light to be analyzed into separate wavelength components, and the optical dispersive element is supported by the optical waveguide.

    Abstract translation: 提供分光光度计光学系统。 分光光度计光学系统包括光学感测阵列和包括输入侧和输出侧的光波导。 光波导的输入侧接收输入光,光感测阵列位于光波导的输出侧。 光波导被配置为将通过全内反射分析的光携带到光波导的输出侧,并将待分析的光引导到光学感测阵列。 分光光度计光学系统包括被配置为将要分析的光分离成分离的波长分量的光学色散元件,并且光学色散元件由光波导支撑。

    Optical touch-screen systems and methods using a planar transparent sheet
    5.
    发明授权
    Optical touch-screen systems and methods using a planar transparent sheet 有权
    光学触摸屏系统和使用平面透明片的方法

    公开(公告)号:US09213445B2

    公开(公告)日:2015-12-15

    申请号:US13686426

    申请日:2012-11-27

    CPC classification number: G06F3/0421 G06F3/0428 G06F2203/04109

    Abstract: An optical touch screen that utilizes a planar transparent sheet and that is configured to determine the position of a touch event on the transparent sheet is disclosed. Light-source elements and light-sensing elements are operably disposed at a perimeter of the transparent sheet. Light is detected over lines-of-sight between the light-source elements and the light-sensing elements. Attenuated lines-of-sight due to the touch event are determined. Central lines are established based on the attenuated lines-of-sight. The locations of central-line intersections are then established. The average of the locations of the central-line intersections is then used to establish the location of the touch event.

    Abstract translation: 公开了一种使用平面透明片材并被配置为确定触摸事件在透明片材上的位置的光学触摸屏。 光源元件和感光元件可操作地设置在透明片的周边。 在光源元件和光感测元件之间的视线上检测光。 确定由触摸事件导致的视线减弱。 基于减弱的视线建立中心线。 然后建立中心线交叉点的位置。 然后中心线交叉点的平均位置用于确定触摸事件的位置。

    Refractometer assemblies, methods of calibrating the same, and methods of determining unknown refractive indices using the same

    公开(公告)号:US10078048B2

    公开(公告)日:2018-09-18

    申请号:US15415283

    申请日:2017-01-25

    CPC classification number: G01N21/4133 G01N21/274

    Abstract: A refractometer assembly comprises a waveguide plate, a diagnostic light source, a photodetector, and a light absorption plate. The diagnostic light source and the photodetector are optically coupled to the waveguide plate such that at least a portion of light emitted from the diagnostic light source is subject to internal reflection at a diagnostic surface of the waveguide plate prior to reaching the photodetector when an analyte film of unknown refractive index n0 forms an optical interface with the diagnostic surface of the waveguide plate. The light absorption plate is configured to absorb light reaching the light absorption plate without undergoing internal reflection at the diagnostic surface when the analyte film forms an optical interface with the diagnostic surface of the waveguide plate. The refractometer assembly defines an optical system where variations in the unknown refractive index n0 are related to variations in a detection signal generated by the photodetector.

    Pressure-sensing touch system utilizing total-internal reflection

    公开(公告)号:US09880653B2

    公开(公告)日:2018-01-30

    申请号:US13826110

    申请日:2013-03-14

    Abstract: A pressure-sensing touch system that utilizes total-internal reflection of light is disclosed. The touch system includes a transparent sheet having a surface. At least one light source and at least one detector are operably arranged relative to the transparent sheet respective to transmit light through the sheet and to detect the transmitted light. A touch event at the top surface of the transparent sheet causes light to scatter from the transparent sheet, thereby changing the amount of light received at the detector. Since the amount of scattered light generated at the touch event location is a function of the applied pressure at the touch event, the change in the detector signal is used to determine the relative amount of applied pressure. Embodiments that include multiple waveguides and channel waveguides, as well as force-sensing devices, are also disclosed.

    REFRACTOMETER ASSEMBLIES, METHODS OF CALIBRATING THE SAME, AND METHODS OF DETERMINING UNKNOWN REFRACTIVE INDICES USING THE SAME

    公开(公告)号:US20170212043A1

    公开(公告)日:2017-07-27

    申请号:US15415283

    申请日:2017-01-25

    CPC classification number: G01N21/4133 G01N21/274

    Abstract: A refractometer assembly comprises a waveguide plate, a diagnostic light source, a photodetector, and a light absorption plate. The diagnostic light source and the photodetector are optically coupled to the waveguide plate such that at least a portion of light emitted from the diagnostic light source is subject to internal reflection at a diagnostic surface of the waveguide plate prior to reaching the photodetector when an analyte film of unknown refractive index n0 forms an optical interface with the diagnostic surface of the waveguide plate. The light absorption plate is configured to absorb light reaching the light absorption plate without undergoing internal reflection at the diagnostic surface when the analyte film forms an optical interface with the diagnostic surface of the waveguide plate. The refractometer assembly defines an optical system where variations in the unknown refractive index n0 are related to variations in a detection signal generated by the photodetector.

    Touch screen systems with interface layer
    9.
    发明授权
    Touch screen systems with interface layer 有权
    具有接口层的触摸屏系统

    公开(公告)号:US09285623B2

    公开(公告)日:2016-03-15

    申请号:US14043174

    申请日:2013-10-01

    CPC classification number: G02F1/13338 G06F3/042 G06F2203/04109

    Abstract: A touch system for sensing a touch event that includes a transparent sheet having opposite upper and lower surfaces and an index of refraction n2. The system also has at least one light source that emits light. The light source is arranged in optical communication with the transparent sheet to cause the light to travel within the transparent sheet by total-internal reflection (TIR). At least one detector is arranged to detect the TIR-traveling light and to detect an amount of attenuation in the TIR-traveling light caused by the touch event. An interface layer is disposed on the lower surface of the transparent sheet. The interface layer has a refractive index n1, wherein n1

    Abstract translation: 一种用于感测触摸事件的触摸系统,其包括具有相反的上表面和下表面的透明片材和折射率n2。 该系统还具有至少一个发光的光源。 光源被布置成与透明片光学连通,以通过全内反射(TIR)使光在透明片内行进。 至少一个检测器被布置成检测TIR行进光并且检测由触摸事件引起的TIR行进光中的衰减量。 界面层设置在透明片的下表面上。 界面层具有折射率n1,其中n1

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