Optical noninvasive pressure sensor
    5.
    发明申请

    公开(公告)号:US20050285025A1

    公开(公告)日:2005-12-29

    申请号:US10879789

    申请日:2004-06-29

    IPC分类号: G01L9/00 G06M7/00 G01D5/34

    CPC分类号: G01L9/0077

    摘要: A system and method for non-invasive pressure sensing are disclosed. One embodiment of the system is an assembly comprising: a plurality of coherent light sources, wherein the plurality of coherent light sources are located in a fixed relationship to one another; an image sensor; and a pressure chamber, comprising a flexible diaphragm, the flexible diaphragm configured to flex in response to a change in pressure in the pressure chamber and operable to reflect a beam of light originating from each of the plurality of coherent light sources onto the image sensor. The pressure sensing assembly can further comprise a processing module operably coupled to the plurality of coherent light sources and to the image sensor and a memory operably coupled to the processing module, wherein the memory includes operational instructions that cause the processing module to carry out the steps of an embodiment of the method for non-invasive pressure sensing of this invention. Such a method can comprise the steps of: directing the plurality of coherent light beams, at a known incidence angle, onto the flexible diaphragm, wherein the plurality of coherent light beams form a pattern of light spots on the diaphragm; capturing at the image sensor an image of the light spot pattern reflected from the diaphragm, wherein the light spot pattern is indicative of the pressure within the pressure chamber; and determining the pressure within the pressure chamber from the captured light spot pattern of the image. The pressure sensing assembly can further comprise a fluidics interface operably coupled to the processor for receiving instructions from the processor to control fluid flow in a fluidics system coupled to the pressure chamber. Such a fluidics interface could be, for example, part of a surgical system, such as an ophthalmic surgical system, incorporating an embodiment of the present invention. The pressure sensing assembly can also comprise a calibration interface for providing calibration inputs to the processor.

    Optical filter array and method of use
    6.
    发明授权
    Optical filter array and method of use 失效
    滤光片阵列及使用方法

    公开(公告)号:US06912073B2

    公开(公告)日:2005-06-28

    申请号:US10186068

    申请日:2002-06-28

    摘要: In accordance with an exemplary embodiment of the present invention, an optical apparatus includes a glass monolithic structure including a plurality of optical filter elements, and the glass monolithic structure is not an optical fiber. In accordance with another exemplary embodiment of the present invention, an optical apparatus includes a glass monolithic structure which includes a plurality of optical filter elements. The optical apparatus further includes a device which selectively aligns an optical input and an optical output to one of said plurality of optical filter elements. In accordance with another exemplary embodiment of the present invention, a method of adding/dropping a particular frequency from an optical signal includes providing a glass monolithic structure which further includes a plurality of optical filter elements. The method further includes providing a device which selectively aligns an optical input and an optical output to one of the plurality of optical filters.

    摘要翻译: 根据本发明的示例性实施例,光学装置包括包括多个滤光器元件的玻璃整体结构,并且玻璃整体结构不是光纤。 根据本发明的另一示例性实施例,光学装置包括包括多个滤光器元件的玻璃整体结构。 该光学装置还包括一个将光学输入和光学输出选择性对准到所述多个滤光器元件之一的装置。 根据本发明的另一示例性实施例,从光信号中添加/删除特定频率的方法包括提供进一步包括多个滤光元件的玻璃整体结构。 该方法还包括提供一种将光输入和光输出选择性对准到多个滤光器之一的装置。

    Switchable fiber optic device for fiber transmission system and
components thereof
    7.
    发明授权
    Switchable fiber optic device for fiber transmission system and components thereof 失效
    用于光纤传输系统的可切换光纤设备及其部件

    公开(公告)号:US5940208A

    公开(公告)日:1999-08-17

    申请号:US813184

    申请日:1997-03-10

    摘要: A fiber optic device for use in fiber optic transmission systems and components thereof includes a pass-through fiber and one or more lengths of circulating fiber connected to the pass-through fiber by respective optical switches for selectively routing an optical signal through the circulating fiber lengths as it propagates along the pass-through fiber. The circulating fiber lengths are either dispersion compensating fibers or fibers doped with a substance that will amplify or absorb the optical signal in the respective presence or absence of a pump signal. The invention thus allows various amounts of dispersion or gain (absorption) to be selectively switched into or out of use depending upon requirements at the time. For example, an amplifying component could serve as a pre- or power- or in-line amplifier device depending on the lesser or greater amount of gain fiber elected by switching. The device can be interconnected with the transmission system or components thereof via splicing to of the ends of the pass-through fiber or via optical switches connected to the ends of the pass through fiber.

    摘要翻译: 用于光纤传输系统及其部件的光纤设备包括通过光纤和通过相应的光开关连接到通过光纤的一个或多个长度的循环光纤,用于选择性地将光信号通过循环光纤长度 因为它沿着通过光纤传播。 循环纤维长度是色散补偿光纤或掺杂有物质的光纤,该物质将在相应存在或不存在泵浦信号的情况下放大或吸收光信号。 因此,本发明允许根据当时的要求将各种量的分散或增益(吸收)选择性地切换到或不使用。 例如,根据通过切换选择的较小或更大量的增益光纤,放大组件可以用作预放电或功率放大器或放大器器件。 该装置可以与传输系统或其组件通过拼接连接到通过光纤的端部或通过连接到通过光纤的端部的光学开关互连。