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1. 发明申请

US20080130014A1 Displacement Measurement Sensor Using the Confocal Principle with an Optical Fiber 审中-公开
标题翻译：使用共焦原理与光纤的位移测量传感器
公开(公告)号：US20080130014A1
公开(公告)日：2008-06-05
申请号：US11949895
申请日：2007-12-04
申请人： Christopher John Rush
发明人： Christopher John Rush
IPC分类号： G01B11/00
CPC分类号： G01B11/0608
摘要： A displacement measurement sensor using the confocal principle with an optical fiber for measuring small changes in distance to a specular target surface comprises a monochromatic light source such as a laser diode 12 coupled to a multimode optical fiber. The fiber 32 functions as both a transmitter, receiver of light ray angle information. An objective lens 40 possessing spherical aberration separates the monochromatic light at different focal distances according to the magnitude of angular deviation from the optical axis. Each distance of the target surface from the objective lens will select specific angular rays able to retrace the path through the objective lens and fiber. Each angle then will correspond to specific distance. Angular information is preserved as the light path is traced back through the fiber 32 and the angle measurement is determined by registering the light impinging on a light sensitive electronic detector array 36.
摘要翻译：使用具有用于测量与镜面目标表面的距离的小变化的光纤的共焦原理的位移测量传感器包括耦合到多模光纤的单色光源，例如激光二极管12。光纤32用作光线角度信息的发射器，接收器。具有球面像差的物镜40根据与光轴的角度偏差的大小分离不同焦距的单色光。来自物镜的目标表面的每个距离将选择能够回溯通过物镜和光纤的路径的特定角射线。每个角度将对应于特定的距离。当通过光纤32跟踪光路时，保留角度信息，并且通过对入射在光敏电子检测器阵列36上的光进行登记来确定角度测量。

2. 发明申请

US20080137061A1 Displacement Measurement Sensor Using the Confocal Principle 审中-公开
标题翻译：位移测量传感器使用共焦原理
公开(公告)号：US20080137061A1
公开(公告)日：2008-06-12
申请号：US11949920
申请日：2007-12-04
申请人： Christopher John Rush
发明人： Christopher John Rush
IPC分类号： G01C3/08
CPC分类号： G01B11/0608
摘要： A displacement measurement sensor using the confocal principle for measuring small changes in distance to a specular target surface comprises a monochromatic light source such as a laser diode 12, an aperture, 31 an objective lens system 44 possessing spherical aberration that separates the monochromatic light at different focal distances according to the magnitude of angular deviation from the optical axis. Each distance of the target surface from the objective lens will select specific angular rays able to retrace the path through the objective lens and aperture. Each angle then will correspond to specific distance. The angle measurement is determined by detecting the light impinging on a light sensitive electronic detector array 36.
摘要翻译：使用共焦原理的位移测量传感器用于测量与镜面目标表面的距离的小变化，包括单色光源，例如激光二极管12，孔31，具有球面像差的物镜系统44，其将不同的单色光分离根据与光轴的角度偏差的大小的焦距。来自物镜的目标表面的每个距离将选择能够回溯通过物镜和孔径的路径的特定角射线。每个角度将对应于特定的距离。通过检测入射到光敏电子检测器阵列36上的光来确定角度测量。

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