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公开(公告)号：US11874377B2
公开(公告)日：2024-01-16
申请号：US16546206
申请日：2019-08-20
CPC分类号： G01S17/89 , G01C1/06 , G01C3/08 , G01S7/487 , G01S7/4815 , G01S7/4817 , G01S17/10 , G01S17/87
摘要： Methods and systems for performing three-dimensional (3-D) LIDAR measurements with multiple illumination beams scanned over a 3-D environment are described herein. In one aspect, illumination light from each LIDAR measurement channel is emitted to the surrounding environment in a different direction by a beam scanning device. The beam scanning device also directs each amount of return measurement light onto a corresponding photodetector. In some embodiments, a beam scanning device includes a scanning mirror rotated in an oscillatory manner about an axis of rotation by an actuator in accordance with command signals generated by a master controller. In some embodiments, the light source and photodetector associated with each LIDAR measurement channel are moved in two dimensions relative to beam shaping optics employed to collimate light emitted from the light source. The relative motion causes the illumination beams to sweep over a range of the 3-D environment under measurement.
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公开(公告)号：US11550056B2
公开(公告)日：2023-01-10
申请号：US16842491
申请日：2020-04-07
摘要： Methods and systems for performing three-dimensional (3-D) LIDAR measurements with multiple illumination beams scanned over a 3-D environment are described herein. In one aspect, illumination light from each LIDAR measurement channel is emitted to the surrounding environment in a different direction by a beam scanning device. The beam scanning device also directs each amount of return measurement light onto a corresponding photodetector. In some embodiments, a beam scanning device includes a scanning mirror rotated in an oscillatory manner about an axis of rotation by an actuator in accordance with command signals generated by a master controller. In some embodiments, the light source and photodetector associated with each LIDAR measurement channel are moved in two dimensions relative to beam shaping optics employed to collimate light emitted from the light source. The relative motion causes the illumination beams to sweep over a range of the 3-D environment under measurement.
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3.发明申请ROTATION AND DIFFERENTIAL ANGLE OPTICAL SENSOR WITH SHORT OPTICAL SENSING ARRAY 失效具有短光感测阵列的旋转和差分角度光学传感器公开(公告)号：US20110128531A1
公开(公告)日：2011-06-02
申请号：US12628008
申请日：2009-11-30
申请人： Steven Al-Rawi
发明人： Steven Al-Rawi
IPC分类号： G01C1/06
CPC分类号： G01D5/3473 , G01L3/12
摘要： A sensor may simultaneously sense the angular position of a first rotatable member relative to a frame of reference and the angular position of a second rotatable member relative to the first rotatable member up to a maximum displacement angle. The sensor may include a first and a second disk, each of which have an annular pattern which alternates between two different levels of optical transparency. The first disk may be coupled to the first rotatable member; and the second disk may be coupled to the second rotatable member. A lighting system may direct light toward the first and the second disks with an orientation that causes an annular illumination pattern to be cast upon an optical sensing array which corresponds to a composite of a portion of the first and the second annular patterns and which spans an angle that is less than or equal to the maximum displacement angle. An optical sensing array may provide signals indicative of the annular illumination pattern. The optical sensing array may have a length which is not substantially greater than the width of the annular illumination pattern cast upon the optical sensing array.
摘要翻译： 传感器可以同时感测第一可旋转构件相对于参考框架的角位置和第二可旋转构件相对于第一可旋转构件的角位置直到最大位移角度。 传感器可以包括第一和第二盘，每个盘具有在两个不同水平的光学透明度之间交替的环形图案。 第一盘可以联接到第一可旋转构件; 并且第二盘可以联接到第二可旋转构件。 照明系统可以将光朝向第一和第二盘引导，其方向使得环形照明图案被投射到光学感测阵列上，所述光学感测阵列对应于第一和第二环形图案的一部分的复合物，并且跨越 角度小于或等于最大位移角。 光学感测阵列可以提供指示环形照明图案的信号。 光学感测阵列可以具有基本上不大于在光学感测阵列上投射的环形照明图案的宽度的长度。
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4.发明申请公开(公告)号：US20110128530A1
公开(公告)日：2011-06-02
申请号：US12628000
申请日：2009-11-30
申请人： Steven Al-Rawi
发明人： Steven Al-Rawi
IPC分类号： G01C1/06
CPC分类号： G01D5/3473 , G01L3/12
摘要： A sensor may simultaneously sense the angular position of a first rotatable member relative to a frame of reference and the angular position of a second rotatable member relative to the first rotatable member. The sensor may include a first and a second disk, each of which have an annular pattern which alternates between two different levels of optical transparency. The first disk may be coupled to the first rotatable member; and the second disk may be coupled to the second rotatable member. The first and the second disks may each have an integral annular race configured to support ball bearings.
摘要翻译： 传感器可以同时感测第一可旋转构件相对于参考框架的角位置和第二可旋转构件相对于第一可旋转构件的角位置。 传感器可以包括第一和第二盘，每个盘具有在两个不同水平的光学透明度之间交替的环形图案。 第一盘可以联接到第一可旋转构件; 并且第二盘可以联接到第二可旋转构件。 第一和第二盘可以各自具有构造成支撑滚珠轴承的整体环形座圈。
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公开(公告)号：US07291832B2
公开(公告)日：2007-11-06
申请号：US11403693
申请日：2006-04-13
申请人： Steven E. Muenter
发明人： Steven E. Muenter
摘要： Systems and methods are disclosed for providing position measurement information. For example, in accordance with one embodiment of the present invention, a multiple-pitch grating is disclosed which is adapted to receive one or more laser beams and provide an output laser beam encoded with position information of the grating.
摘要翻译： 公开了用于提供位置测量信息的系统和方法。 例如，根据本发明的一个实施例，公开了一种适用于接收一个或多个激光束并提供用光栅的位置信息编码的输出激光束的多间距光栅。
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公开(公告)号：US5847820A
公开(公告)日：1998-12-08
申请号：US742025
申请日：1996-11-01
申请人： Martin R. Hamar
发明人： Martin R. Hamar
CPC分类号： G01B11/26 , G01C9/06 , G01C2009/066 , G01C2009/107
摘要： A laser apparatus is provided for sensing rotational orientation or the degree of levelness. The apparatus includes a photosensitive cell and a diode laser directing a laser beam toward the photosensitive cell. Both the diode laser and the photosensitive cell may be mounted in a rigid housing. A ball lens is rotatably mounted between the diode laser and the photosensitive cell such that the laser beam must pass through the ball lens to impinge upon the position sensitive cell. The ball lens is subject to limited movement within the housing. The control for limiting movement of the ball lens may be a circular raceway or a negative lens. Movement of the ball lens within the circular raceway or on the negative lens causes the laser beam to shift on the target. The position of the laser beam on the target is a function of the position of the ball lens and can be correlated to either the rotational orientation of the housing or the degree of levelness of the housing.
摘要翻译： 提供了用于感测旋转取向或水平度的激光装置。 该装置包括光敏电池和将激光束导向光敏电池的二极管激光器。 二极管激光器和感光电池都可以安装在刚性壳体中。 球形透镜可旋转地安装在二极管激光器和感光单元之间，使得激光束必须穿过球形透镜以撞击位置敏感单元。 球镜在壳体内受到有限的运动。 用于限制球透镜的运动的控制可以是圆形滚道或负透镜。 球透镜在圆形滚道内或负透镜上的运动导致激光束在目标上移动。 激光束在目标上的位置是球透镜的位置的函数，并且可以与壳体的旋转取向或壳体的水平度相关。
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7.发明授权
公开(公告)号：US4620092A
公开(公告)日：1986-10-28
申请号：US553946
申请日：1983-11-21
申请人： Masato Hara
发明人： Masato Hara
摘要： An elevation angle measuring device is designed to compensate for a slight inclination of the device. A vertical hanging member having a slit is arranged such that the slit acts as a photoelectric passage mask for a detector when the device has an inclination angle substantially equal to zero. The device is disabled by the vertical hanging member when the inclination angle of the device is not substantially equal to zero.
摘要翻译： 仰角测量装置设计用于补偿装置的轻微倾斜。 具有狭缝的垂直悬挂构件被布置成使得当装置具有基本上等于零的倾斜角时，狭缝用作检测器的光电通道掩模。 当装置的倾斜角度基本上不等于零时，该装置被垂直悬挂构件禁用。
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公开(公告)号：US4093383A
公开(公告)日：1978-06-06
申请号：US748623
申请日：1976-12-16
申请人： Wieland Feist , Klaus Junghanns , Alfred Kunz
发明人： Wieland Feist , Klaus Junghanns , Alfred Kunz
摘要： An angle measuring device comprises a base, a telescope seated thereupon for rotation about an axis, a graduated circle having a line division, a micrometer for subdividing said line division, and photoelectric scanners for detecting angular values from said line division and from said micrometer. A graduated plate provided with a reticle is located in said telescope. Said reticle has a zone limited by two line marks which are arranged in parallel and symmetrically to and on either side of one of the reticle lines. Said two lines are spaced from said reticle line by a width which is at least double the size of one division interval of the graduated circle line division.
摘要翻译： 角度测量装置包括基座，位于其上的用于围绕轴线旋转的望远镜，具有线分割的刻度圆，用于细分所述线分割的千分尺，以及用于检测来自所述线分割和所述千分尺的角度值的光电扫描器。 设置有光罩的刻度板位于所述望远镜中。 所述掩模版具有由两条线标记限定的区域，这两条线标记平行且对称地布置在一个掩模版线上的两侧。 所述两条线路与所述标线线间隔开至少为刻度线划分的一个分割间隔的两倍的宽度。
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公开(公告)号：US3732015A
公开(公告)日：1973-05-08
申请号：US3732015D
申请日：1970-11-19
申请人： JENOPTIK JENA GMBH
发明人： FEIST W , VON CHAMIER B
IPC分类号： G01C1/06
CPC分类号： G01C1/06
摘要： In an angle-measuring instrument having a reading microscope, the digital readings on the dial are displayed by apertures in a diaphragm which is located in the field of vision of the reading microscope. These apertures are: one for the division lines; one for the degree numbers; two for the even and odd numbers, respectively; and one for both the 1-minute numbers and the second numbers. The two 10-minute apertures are staggered relative to one another in such a manner that either an even number or an odd number is displayed at one time.
摘要翻译： 在具有读数显微镜的角度测量仪器中，表盘上的数字读数由位于读数显微镜视野范围内的隔膜中的孔显示。 这些孔是：一个用于划分线; 一个为学位数; 分别为偶数和奇数两个; 一个为1分钟和第二个数字。 两个10分钟孔径相对于彼此交错，使得一次显示偶数或奇数。
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公开(公告)号：US3238361A
公开(公告)日：1966-03-01
申请号：US20314562
申请日：1962-06-18
发明人： EBERHARD FRISCH
CPC分类号： G01C1/06 , G01D5/24404 , G01D5/247 , H03M1/30
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