公开(公告)号：US08970826B2

公开(公告)日：2015-03-03

申请号：US13093556

申请日：2011-04-25

申请人： Chien-Sheng Liu ,  Pin-Hao Hu

发明人： Chien-Sheng Liu ,  Pin-Hao Hu

IPC分类号： G01C3/08 ,  G02B27/16 ,  G02B7/36 ,  G02B21/24

CPC分类号： G02B27/16 ,  G02B7/36 ,  G02B21/245

摘要： An automatic focusing apparatus and a method thereof are provided. The apparatus includes a light source, an optical imaging unit, a photo-sensor and a focusing regulation unit. The optical imaging unit includes an object lens and a beam splitter. The beam splitter divides a reflecting beam into a first sub-beam and a second sub-beam. The optical imaging unit has a first imaging optical path and a second imaging optical path with different imaging precisions corresponding to the first sub-beam and the second sub-beam, respectively. The photo-sensor detects a defocus position of the object. The focusing regulation unit adjusts the distance between the object and the object lens and selects an imaging precision, so that the defocus position of the object is placed within the imaging precision of the first optical path and the imaging precision of the second optical path in sequence.

摘要翻译： 提供一种自动对焦装置及其方法。 该装置包括光源，光学成像单元，光电传感器和聚焦调节单元。 光学成像单元包括物镜和分束器。 分束器将反射光束分成第一子光束和第二子光束。 光学成像单元具有分别对应于第一子光束和第二子光束的具有不同成像精度的第一成像光路和第二成像光路。 光传感器检测物体的散焦位置。 聚焦调节单元调节物体和物镜之间的距离并选择成像精度，使得物体的散焦位置依次位于第一光路的成像精度和第二光路的成像精度之内 。

公开(公告)号：US20120133819A1

公开(公告)日：2012-05-31

申请号：US13093556

申请日：2011-04-25

申请人： Chien-Sheng Liu ,  Pin-Hao Hu

发明人： Chien-Sheng Liu ,  Pin-Hao Hu

IPC分类号： H04N5/232

CPC分类号： G02B27/16 ,  G02B7/36 ,  G02B21/245

摘要： An automatic focusing apparatus and a method thereof are provided. The apparatus includes a light source, an optical imaging unit, a photo-sensor and a focusing regulation unit. The optical imaging unit includes an object lens and a beam splitter. The beam splitter divides a reflecting beam into a first sub-beam and a second sub-beam. The optical imaging unit has a first imaging optical path and a second imaging optical path with different imaging precisions corresponding to the first sub-beam and the second sub-beam, respectively. The photo-sensor detects a defocus position of the object. The focusing regulation unit adjusts the distance between the object and the object lens and selects an imaging precision, so that the defocus position of the object is placed within the imaging precision of the first optical path and the imaging precision of the second optical path in sequence.

摘要翻译： 提供一种自动对焦装置及其方法。 该装置包括光源，光学成像单元，光电传感器和聚焦调节单元。 光学成像单元包括物镜和分束器。 分束器将反射光束分成第一子光束和第二子光束。 光学成像单元具有分别对应于第一子光束和第二子光束的具有不同成像精度的第一成像光路和第二成像光路。 光传感器检测物体的散焦位置。 聚焦调节单元调节物体和物镜之间的距离并选择成像精度，使得物体的散焦位置依次位于第一光路的成像精度和第二光路的成像精度之内 。

公开(公告)号：US08456651B2

公开(公告)日：2013-06-04

申请号：US12703894

申请日：2010-02-11

申请人： Shun-Sheng Ke ,  Meng-Che Tsai ,  Yang-Cheng Lin ,  Pin-Hao Hu ,  Yu-Hsiu Chang

发明人： Shun-Sheng Ke ,  Meng-Che Tsai ,  Yang-Cheng Lin ,  Pin-Hao Hu ,  Yu-Hsiu Chang

IPC分类号： G01J1/00 ,  G01J1/20

CPC分类号： G01B11/306

摘要： A focal position detecting apparatus, for detecting a focusing condition and a tilting condition of an object, includes a planar beam generating module, an optical system, an optical sensor and a cylindrical lens. The planar beam generating module generates a planar light beam along a first path. The optical system is disposed on the first path, wherein the planar light beam, reflected by the object, passes through the optical system along a second path. The optical sensor is disposed on the second path. The cylindrical lens is disposed on the second path between the optical system and the optical sensor and an axis of the cylindrical lens is perpendicular to the second path. The planar light beam passes through the optical system and the cylindrical lens along the second path, before it is incident on the optical sensor to form a linear light spot for determining defocusing degree.

摘要翻译： 用于检测物体的聚焦状态和倾斜状态的焦点位置检测装置包括平面光束产生模块，光学系统，光学传感器和柱面透镜。 平面光束产生模块沿着第一路径产生平面光束。 光学系统设置在第一路径上，其中由物体反射的平面光束沿着第二路径穿过光学系统。 光学传感器设置在第二路径上。 柱面透镜设置在光学系统和光学传感器之间的第二路径上，并且柱面透镜的轴线垂直于第二路径。 在入射到光学传感器之前，平面光束沿着第二路径通过光学系统和柱面透镜，以形成用于确定散焦度的线性光斑。

公开(公告)号：US20130161484A1

公开(公告)日：2013-06-27

申请号：US13480819

申请日：2012-05-25

申请人： Pin-Hao Hu ,  Yang-Cheng Lin

发明人： Pin-Hao Hu ,  Yang-Cheng Lin

IPC分类号： G02B27/40

CPC分类号： G02B7/34 ,  G02B21/245

摘要： An auto-focusing apparatus with timing-sequential light spots includes a light source, a lens, a timing-sequential light dividing module, a focusing element and a processing module. The light source produces an incident beam. The lens collimates the incident beam that is an unsymmetrical beam relative to the lens to a collimation beam. The timing-sequential light dividing module divides the collimation beam into multiple sub-beams in timing sequence. The focusing element focuses the sub-beams to an observed object. The processing module senses energy distribution of multiple reflected beams of the observed object corresponding to the sub-beams to accordingly calculate energy centroids of the reflected beams.

摘要翻译： 具有定时顺序光点的自动对焦装置包括光源，透镜，定时顺序光分割模块，聚焦元件和处理模块。 光源产生入射光束。 透镜将作为相对于透镜的不对称光束的入射光束准直到准直光束。 时序顺序光分割模块按照时序顺序将准直光束分成多个子光束。 聚焦元件将子光束聚焦到观察对象。 处理模块感测对应于子光束的观测物体的多个反射光束的能量分布，从而相应地计算反射光束的能量质心。

公开(公告)号：US20110134416A1

公开(公告)日：2011-06-09

申请号：US12703894

申请日：2010-02-11

申请人： Shun-Sheng Ke ,  Meng-Che Tsai ,  Yang-Cheng Lin ,  Pin-Hao Hu ,  Yu-Hsiu Chang

发明人： Shun-Sheng Ke ,  Meng-Che Tsai ,  Yang-Cheng Lin ,  Pin-Hao Hu ,  Yu-Hsiu Chang

IPC分类号： G01J1/00 ,  G01B11/26

CPC分类号： G01B11/306

摘要： A focal position detecting apparatus, for detecting a focusing condition and a tilting condition of an object, includes a planar beam generating module, an optical system, an optical sensor and a cylindrical lens. The planar beam generating module generates a planar light beam along a first path. The optical system is disposed on the first path, wherein the planar light beam, reflected by the object, passes through the optical system along a second path. The optical sensor is disposed on the second path. The cylindrical lens is disposed on the second path between the optical system and the optical sensor and an axis of the cylindrical lens is perpendicular to the second path. The planar light beam passes through the optical system and the cylindrical lens along the second path, before it is incident on the optical sensor to form a linear light spot for determining defocusing degree.

摘要翻译： 用于检测物体的聚焦状态和倾斜状态的焦点位置检测装置包括平面光束产生模块，光学系统，光学传感器和柱面透镜。 平面光束产生模块沿着第一路径产生平面光束。 光学系统设置在第一路径上，其中由物体反射的平面光束沿着第二路径穿过光学系统。 光学传感器设置在第二路径上。 柱面透镜设置在光学系统和光学传感器之间的第二路径上，并且柱面透镜的轴线垂直于第二路径。 在入射到光学传感器之前，平面光束沿着第二路径通过光学系统和柱面透镜，以形成用于确定散焦度的线性光斑。

公开(公告)号：US20100116968A1

公开(公告)日：2010-05-13

申请号：US12422948

申请日：2009-04-13

申请人： Yung-Hsing Wang ,  Kun-Wei Lin ,  Pin-Hao Hu ,  Chia-Chao Chung ,  Yu-Sheng Liu

发明人： Yung-Hsing Wang ,  Kun-Wei Lin ,  Pin-Hao Hu ,  Chia-Chao Chung ,  Yu-Sheng Liu

IPC分类号： G02B27/40

CPC分类号： G02B7/28 ,  B23K26/046

摘要： A method of focus and a focusing apparatus and a detecting module are provided. The detecting module includes an ellipse curved-surface reflection device and a light detector. The ellipse curved-surface reflection device has a beam gate, a first focus and a second focus. A light beam is focused by a light focusing device, and is projected on a surface of an object to be detected through the beam gate. The ellipse curved-surface reflection device reflects the light beams reflected or scattered by the object. The light detector is disposed on the second focus for receiving the light beam reflected by the ellipse curved-surface reflection device to generate a detecting result, by which a distance between the light focusing device and the surface of the object to be detected is adjusted, so that the light beam is correctly focused on the surface of the object.

摘要翻译： 提供了一种聚焦方法和聚焦装置和检测模块。 检测模块包括椭圆曲面反射装置和光检测器。 椭圆曲面反射装置具有光束门，第一焦点和第二焦点。 光束由光聚焦装置聚焦，并且通过光束门投射到待检测物体的表面上。 椭圆曲面反射装置反射物体反射或散射的光束。 光检测器设置在第二焦点上，用于接收由椭圆曲面反射装置反射的光束，以产生检测结果，由此调整光聚焦装置与被检测物体的表面之间的距离， 使得光束被正确地聚焦在物体的表面上。

公开(公告)号：US08093540B2

公开(公告)日：2012-01-10

申请号：US12422948

申请日：2009-04-13

申请人： Yung-Hsing Wang ,  Kun-Wei Lin ,  Pin-Hao Hu ,  Chia-Chao Chung ,  Yu-Sheng Liu

发明人： Yung-Hsing Wang ,  Kun-Wei Lin ,  Pin-Hao Hu ,  Chia-Chao Chung ,  Yu-Sheng Liu

IPC分类号： G02B27/40

CPC分类号： G02B7/28 ,  B23K26/046

摘要： A method of focus and a focusing apparatus and a detecting module are provided. The detecting module includes an ellipse curved-surface reflection device and a light detector. The ellipse curved-surface reflection device has a beam gate, a first focus and a second focus. A light beam is focused by a light focusing device, and is projected on a surface of an object to be detected through the beam gate. The ellipse curved-surface reflection device reflects the light beams reflected or scattered by the object. The light detector is disposed on the second focus for receiving the light beam reflected by the ellipse curved-surface reflection device to generate a detecting result, by which a distance between the light focusing device and the surface of the object to be detected is adjusted, so that the light beam is correctly focused on the surface of the object.

摘要翻译： 提供了一种聚焦方法和聚焦装置和检测模块。 检测模块包括椭圆曲面反射装置和光检测器。 椭圆曲面反射装置具有光束门，第一焦点和第二焦点。 光束由光聚焦装置聚焦，并且通过光束门投射到待检测物体的表面上。 椭圆曲面反射装置反射物体反射或散射的光束。 光检测器设置在第二焦点上，用于接收由椭圆曲面反射装置反射的光束，以产生检测结果，通过该检测结果调整光聚焦装置与被检测物体的表面之间的距离， 使得光束被正确地聚焦在物体的表面上。