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公开(公告)号：US5801822A
公开(公告)日：1998-09-01
申请号：US796740
申请日：1997-02-06
CPC分类号： G01M11/0278 , G01M11/0207 , G01M11/0221 , G01M11/025
摘要： An ophthalmic lens inspection system includes an illumination assembly which generates diffuse light and transmits the diffuse light through an ophthalmic lens disposed in an inspection position, the diffuse light having a diffusivity of between 30.degree. and 50.degree.. An imaging assembly generates a set of signals representing selected portions of the diffuse light transmitted through the ophthalmic lens in the inspection position. A moving mechanism supports the imaging and illumination assemblies for common movement relative to the contact lens, to bring a reference point into alignment with the center of the imaging assembly.
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公开(公告)号：US5818573A
公开(公告)日：1998-10-06
申请号：US796744
申请日：1997-02-06
CPC分类号： G01M11/0221
摘要： An ophthalmic lens inspection system includes an illumination assembly which generates diffuse light and transmits the diffuse light through an ophthalmic lens disposed in an inspection position, the diffuse light having a diffusivity of between 30.degree. and 50.degree.. An imaging assembly generates a set of signals representing selected portions of the diffuse light transmitted through the ophthalmic lens in the inspection position. A moving mechanism supports the imaging and illumination assemblies for common movement relative to the contact lens, to bring a reference point into alignment with the center of the imaging assembly.
摘要翻译： 一种眼科镜检查系统，包括产生漫射光并通过设置在检查位置的眼镜透射漫射光的照明组件，扩散光的扩散系数在30°至50°之间。 成像组件在检查位置产生表示通过眼科镜片透射的漫射光的所选部分的一组信号。 移动机构支持用于相对于隐形眼镜共同移动的成像和照明组件，以使参考点与成像组件的中心对准。
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公开(公告)号：US06191856B1
公开(公告)日：2001-02-20
申请号：US09553986
申请日：2000-04-20
IPC分类号： G01N2186
CPC分类号： G01N21/952
摘要： An optical device for establishing a spatial orientation for a drill bit includes at least three light sources and two cameras. The first light source is used to silhouette the drill bit; a second light source is used to generate a reflection from a primary facet of the drill bit; and a third light source is used to generate a reflection from the margin of the drill bit. In sequence, the first camera responds to the first light source to establish an axial position for the drill bit on the axis. The second camera then responds to the second light source to establish a gross rotational position for the drill bit on its axis. Finally, the first camera is again used. This time it establishes a precise rotational position for the drill bit on its axis to establish the spatial orientation for the drill bit.
摘要翻译： 用于建立钻头的空间取向的光学装置包括至少三个光源和两个照相机。 第一个光源用于剪裁钻头; 第二光源用于从钻头的主要面产生反射; 并且第三光源用于从钻头的边缘产生反射。 顺序地，第一相机响应于第一光源以在轴上建立钻头的轴向位置。 第二个相机然后响应于第二个光源，以确定钻头在其轴上的总旋转位置。 最后，再次使用第一台相机。 这次它确定钻头在其轴上的精确旋转位置，以确定钻头的空间方位。
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