公开(公告)号：US09243895B2

公开(公告)日：2016-01-26

申请号：US13496588

申请日：2010-09-15

Applicant: Roy D. Allen ,  Mark A. Ritter

Inventor： Roy D. Allen ,  Mark A. Ritter

IPC: G01B11/14 ,  G01D5/347 ,  G01D5/38

CPC classification number: G01B11/14 ,  G01D5/34746 ,  G01D5/38

Abstract: The disclosure relates to a remote displacement sensor, such as an optical strain gauge, which uses an optical amplifier implemented by patterns, such as, moiré patterns, to calculate changes in position. In a strain gauge with moiré patterns, two foil layers are provided, a lower foil layer with a reference or static moiré pattern generated by the overlaying of a first pattern with parallel lines at a first fundamental frequency and a second pattern with parallel lines at a second fundamental frequency. The lower foil layer further includes a first section with a first pattern with parallel lines at the first fundamental frequency while the upper layer provides a second section with a second pattern with parallel lines at the second fundamental frequency. The overlaying of the foils causes an overlying of the first and second sections thereby causing a moiré pattern of the same wavelength as the reference pattern.

Abstract translation: 本公开涉及一种远程位移传感器，例如光学应变计，其使用由诸如莫尔图案的图案实现的光学放大器来计算位置变化。 在具有莫尔图案的应变计中，提供两个箔层，具有参考或静态莫尔图案的下箔层，其通过以第一基频叠加平行线的第一图案和具有平行线的第二图案 第二基频。 下箔层还包括第一部分，第一部分具有在第一基本频率处具有平行线的第一图案，而上层提供具有在第二基本频率处具有平行线的第二图案的第二部分。 箔的重叠导致第一和第二部分的覆盖，从而引起与参考图案相同波长的莫尔图案。

公开(公告)号：US20120176629A1

公开(公告)日：2012-07-12

申请号：US13496588

申请日：2010-09-15

Applicant: Roy D. Allen ,  Mark A. Ritter

Inventor： Roy D. Allen ,  Mark A. Ritter

IPC: G01B11/14

CPC classification number: G01B11/14 ,  G01D5/34746 ,  G01D5/38

Abstract: The disclosure relates to a remote displacement sensor, such as an optical strain gauge, which uses an optical amplifier implemented by patterns, such as, but not limited to, moiré patterns, to calculate changes in position or gauge length. In the embodiment implemented as a strain gauge with moiré patterns, two foil layers are provided, a lower foil layer with a reference or static moiré pattern generated by the overlaying of a first pattern with parallel lines at a first fundamental frequency and a second pattern with parallel lines at a second fundamental frequency. The lower foil layer further includes a first section with a first pattern with parallel lines at the first fundamental frequency while the upper layer provides a second section with a second pattern with parallel lines at the second fundamental frequency. The overlaying of the foils causes an overlying of the first and second sections thereby causing a moiré pattern of the same wavelength as the reference pattern. However, relative movement of the two foils perpendicular to the parallel lines, in response to a movement in the gauge length in response to strain on the specimen, causes a phase change in the overlaid pattern which is greater than the relative movement. The image of the optical strain gauge is captured by a camera or other optical device and the resulting image is processed by a Fast Fourier Transform or similar algorithm to determine the phase change, thereby calculating the change in gauge length and therefore the resulting strain.

Abstract translation: 本公开涉及一种远程位移传感器，例如光学应变计，其使用由图案（例如但不限于）莫尔图案实现的光学放大器来计算位置或标距长度的变化。 在实施为具有莫尔图案的应变计的实施例中，提供了两个箔层，具有参考或静态莫尔图案的下箔层，其通过以第一基频叠加具有平行线的第一图案和第二图案， 平行线处于第二基频。 下箔层还包括第一部分，第一部分具有在第一基本频率处具有平行线的第一图案，而上层提供具有在第二基本频率处具有平行线的第二图案的第二部分。 箔的重叠导致第一和第二部分的覆盖，从而引起与参考图案相同波长的莫尔图案。 然而，响应于在标本长度上的响应于样品上的应变的两个垂直于平行线的箔的相对运动导致重叠图案中的相位变化大于相对运动。 光学应变仪的图像由相机或其他光学装置捕获，并且通过快速傅立叶变换或类似算法处理所得到的图像以确定相位变化，由此计算标距长度的变化，并因此计算所得应变。

公开(公告)号：US20080180693A1

公开(公告)日：2008-07-31

申请号：US11910646

申请日：2006-04-04

Applicant: Robert F. Dillon ,  Roy D. Allen ,  Neil Judell ,  Yi Qian

Inventor： Robert F. Dillon ,  Roy D. Allen ,  Neil Judell ,  Yi Qian

IPC: G01B9/02

CPC classification number: G01B11/2441 ,  G01B11/2527

Abstract: Described is an interferometric surface contour measurement system for projecting structured light patterns onto an object. The measurement system includes an interferometric projector, an imager, and a processor. The imager is rigidly coupled to the projector to maintain a stable relationship to the projected, structured light pattern. The imager receives the structured light pattern and together with the processor, determines whether the projected image includes a positional error. In some embodiments, the projector is a multi-channel projector, each channel having an optical axis spatially separated from the others, one of the channels including the imager and dedicated for determining positional error. In other embodiments, the projector is a single-channel projector projecting a structured light pattern onto the object, a portion of the structured light pattern being tapped-off for determining positional error.

Abstract translation: 描述了一种用于将结构光图案投影到物体上的干涉测量表面轮廓测量系统。 测量系统包括干涉式投影仪，成像器和处理器。 成像器刚性耦合到投影仪以保持与投影的结构化光图案的稳定关系。 成像器接收结构化光图案并与处理器一起确定投影图像是否包括位置误差。 在一些实施例中，投影仪是多通道投影仪，每个通道具有与其它通道在空间上分离的光轴，其中一个通道包括成像器，专用于确定位置误差。 在其他实施例中，投影仪是将结构化光图案投射到物体上的单通道投影仪，结构化光图案的一部分被分接以确定位置误差。

公开(公告)号：US06721061B1

公开(公告)日：2004-04-13

申请号：US09464128

申请日：1999-12-16

Applicant: Roy D. Allen

Inventor： Roy D. Allen

IPC: H04N100

CPC classification number: H04N1/6033 ,  B41F33/0036 ,  B41P2233/51 ,  G06T5/50 ,  G06T7/0004 ,  G06T7/70 ,  G06T2207/30144 ,  H04N1/40037

Abstract: A visual sensor includes a reference portion comprising an image independent of banding and a banding test portion adjacent to the reference portion comprising an image sensitive to banding. In one embodiment, the visual sensor also includes a process check portion adjacent to the banding portion for indicating whether a predetermined imaging parameter is within designated limits.

Abstract translation: 视觉传感器包括参考部分，其包括独立于条带的图像和与参考部分相邻的条带测试部分，其包括对条带敏感的图像。 在一个实施例中，视觉传感器还包括与条带部分相邻的处理检查部分，用于指示预定成像参数是否在指定限制内​​。

公开(公告)号：US6144483A

公开(公告)日：2000-11-07

申请号：US346743

申请日：1999-07-02

Applicant: Roy D. Allen ,  Frank Scholten

Inventor： Roy D. Allen ,  Frank Scholten

IPC: B41B19/00 ,  B41J2/47 ,  G02B26/10 ,  H04N1/047 ,  H04N1/053 ,  H04N1/06 ,  H04N1/191 ,  G02F1/33

CPC classification number: H04N1/0635 ,  B41B19/00 ,  B41J2/473 ,  G02B26/10 ,  H04N1/047 ,  H04N1/053 ,  H04N1/1911 ,  H04N1/0607 ,  H04N2201/0471 ,  H04N2201/0476 ,  H04N2201/04765 ,  H04N2201/04786

Abstract: A beam scanning system for scanning an imaging surface includes a phase shifter for issuing phase signals, a radiation emitter for emitting a beam of radiation and a deflection element, such as an acousto-optic modulator or translating lens, for deflecting the radiation beam. Depending on the implementation, the emitter can be configured to phase shift the radiation beam and/or the deflection element can be configured to deflect the radiation beam in accordance with the issued phase signals. By emitting and/or deflecting the radiation beam in accordance with the phase signals, the length of the scan line formed on the imaging surface can be controlled. A deflector, such as a spin mirror or rotatable prism, is provided to direct the radiation beam to form a scan line on the imaging surface.

Abstract translation: 用于扫描成像表面的束扫描系统包括用于发出相位信号的移相器，用于发射辐射束的辐射发射器和用于偏转辐射束的偏转元件，例如声光调制器或平移透镜。 根据实施方案，发射器可以被配置为使辐射束相移，和/或可以将偏转元件配置成根据发出的相位信号偏转辐射束。 通过根据相位信号发射和/或偏转辐射束，可以控制形成在成像表面上的扫描线的长度。 提供偏转器，例如自旋反射镜或可旋转棱镜，以引导辐射束在成像表面上形成扫描线。

公开(公告)号：US07599071B2

公开(公告)日：2009-10-06

申请号：US11910646

申请日：2006-04-04

Applicant: Robert F. Dillon ,  Roy D. Allen ,  Neil Judell ,  Yi Qian

Inventor： Robert F. Dillon ,  Roy D. Allen ,  Neil Judell ,  Yi Qian

IPC: G01B9/02 ,  G01B11/02

CPC classification number: G01B11/2441 ,  G01B11/2527

Abstract: Described is an interferometric surface contour measurement system for projecting structured light patterns onto an object. The measurement system includes an interferometric projector, an imager, and a processor. The imager is rigidly coupled to the projector to maintain a stable relationship to the projected, structured light pattern. The imager receives the structured light pattern and together with the processor, determines whether the projected image includes a positional error. In some embodiments, the projector is a multi-channel projector, each channel having an optical axis spatially separated from the others, one of the channels including the imager and dedicated for determining positional error. In other embodiments, the projector is a single-channel projector projecting a structured light pattern onto the object, a portion of the structured light pattern being tapped-off for determining positional error.

Abstract translation: 描述了一种用于将结构光图案投影到物体上的干涉测量表面轮廓测量系统。 测量系统包括干涉式投影仪，成像器和处理器。 成像器刚性耦合到投影仪以保持与投影的结构化光图案的稳定关系。 成像器接收结构化光图案并与处理器一起确定投影图像是否包括位置误差。 在一些实施例中，投影仪是多通道投影仪，每个通道具有与其它通道在空间上分离的光轴，其中一个通道包括成像器，专用于确定位置误差。 在其他实施例中，投影仪是将结构化光图案投射到物体上的单通道投影仪，结构化光图案的一部分被分接以确定位置误差。

公开(公告)号：US5864418A

公开(公告)日：1999-01-26

申请号：US706339

申请日：1996-08-30

Applicant: Roy D. Allen ,  Frank Scholten

Inventor： Roy D. Allen ,  Frank Scholten

IPC: B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  G02B26/10 ,  H04N1/047 ,  H04N1/06 ,  H04N1/113 ,  H04N1/191 ,  G02B26/08

CPC classification number: H04N1/0635 ,  G02B26/10 ,  H04N1/0473 ,  H04N1/1911 ,  H04N1/0607 ,  H04N2201/0476

Abstract: A multibeam scanning system for scanning an imaging surface, includes at least one radiation emitter configured to emit a first beam of radiation and a second beam of radiation. A spin deflector, rotatable about a spin axis, is provided to direct the first beam to form a first scan line and the second beam to form a second scan line on the imaging surface. At least one moving element, such as a translating lens, disposed upstream of said spin deflector, operates to deflect at least one of the beams with respect to the spin axis of the spin deflector.

Abstract translation: 用于扫描成像表面的多光束扫描系统包括配置成发射第一辐射束和第二辐射束的至少一个辐射发射器。 提供围绕自旋轴线旋转的旋转偏转器，以引导第一光束形成第一扫描线，而第二光束在成像表面上形成第二扫描线。 设置在所述自旋偏转器上游的至少一个移动元件，例如平移透镜，用于相对于旋转偏转器的旋转轴偏转至少一个光束。

公开(公告)号：US06535307B1

公开(公告)日：2003-03-18

申请号：US09206217

申请日：1998-12-05

Applicant: Roy D. Allen ,  David J. Romano ,  Stephen C. Hinds

Inventor： Roy D. Allen ,  David J. Romano ,  Stephen C. Hinds

IPC: H04N146

CPC classification number: B41F33/0036 ,  B41P2233/51 ,  G06T7/0004 ,  G06T2207/30144 ,  H04N1/40037 ,  H04N1/6033

Abstract: A visual sensor has a first portion and a second portion. The sensor is able to detect the state of one or more imaging parameters such as exposure setting, pulse width modulation, focus, balance, spot ellipticity, sidelobe size, shape, and intensity, media gamma, edge sharpness, dot gain, uniformity, ink receptivity, physical changes in the media, pattern dependent effects such as dot gain or tone resolution compared to the type of halftone used, and sensitivity to calibrated position or exposure errors. The first image portion has a first imaging characteristic, and the second image portion has a second imaging characteristic. Imaging characteristics are characteristics of an image, including, but not limited to apparent density level, tint, color, reflectivity, absorption, granularity or microstructure, size, shape, distribution, degree of randomness, structure, edge sharpness, and depth or dimension. One of the portions is less sensitive to one or more imaging parameters than the other portion so that the first image portion and the second image portion appear substantially similar at a desired range of imaging parameters, and appear different otherwise. The imaging characteristic of the first portion is distinguishable from the imaging characteristic of the second portion for one or more ranges of one or more imaging parameters, and is not distinguishable for the alternate range(s) of the one or more imaging parameters. A range can be a particular imaging parameter value, or a range that excludes one or more imaging parameter values.

Abstract translation: 视觉传感器具有第一部分和第二部分。 传感器能够检测一个或多个成像参数的状态，例如曝光设置，脉冲宽度调制，对焦，平衡，光点椭圆率，旁瓣大小，形状和强度，介质伽马，边缘锐度，点增益，均匀性，墨水 与所使用的半色调类型相比，介质中的接受性，物理变化，与图形相关的效果如点增益或色调分辨率以及对校准位置或曝光误差的敏感度。 第一图像部分具有第一成像特征，并且第二图像部分具有第二成像特征。 成像特征是图像的特征，包括但不限于表观密度水平，色调，颜色，反射率，吸收，粒度或微结构，尺寸，形状，分布，随机度，结构，边缘锐度和深度或尺寸。 这些部分中的一个对于一个或多个成像参数比其他部分更不敏感，使得第一图像部分和第二图像部分在成像参数的期望范围处显示为基本相似，否则显示不同。 对于一个或多个成像参数的一个或多个范围，第一部分的成像特征与第二部分的成像特性是区别的，并且对于一个或多个成像参数的替代范围是不可区分的。 范围可以是特定的成像参数值，或排除一个或多个成像参数值的范围。

公开(公告)号：US6164847A

公开(公告)日：2000-12-26

申请号：US393237

申请日：1999-09-09

Applicant: Roy D. Allen

Inventor： Roy D. Allen

IPC: G06T5/50 ,  G06T7/00 ,  B41J3/42

CPC classification number: G06T7/0004 ,  G06T5/50 ,  G06T2207/30144

Abstract: A system and method for detecting imaging parameters includes forming a first image generated with pseudorandom noise and a second image generated with the same pseudorandom noise that serve as an imaging parameter sensor when the first and second images are superimposed. The sensor is useful for visually detecting such imaging parameters such as geometric errors. In one embodiment, the first and second patterns are generated with pseudorandom noise by modulating a repetitive pattern with pseudorandom noise. In another embodiment, the first and second patterns are generated with pseudorandom noise by forming a pseudorandom image and the reverse of the image, and phase shifting one or both of the images.

Abstract translation: 用于检测成像参数的系统和方法包括：当叠加第一和第二图像时，形成用伪随机噪声产生的第一图像和用相同伪随机噪声产生的第二图像，其用作成像参数传感器。 传感器可用于视觉检测诸如几何误差的成像参数。 在一个实施例中，通过用伪随机噪声调制重复模式，通过伪随机噪声产生第一和第二图案。 在另一个实施例中，通过形成伪随机图像和图像的相反，并且相移一个或两个图像，通过伪随机噪声来产生第一和第二图案。

公开(公告)号：US6022154A

公开(公告)日：2000-02-08

申请号：US167027

申请日：1998-10-06

Applicant: Roy D. Allen

Inventor： Roy D. Allen

IPC: G01B11/00 ,  B41C1/00 ,  B41F33/00 ,  G03G15/00 ,  G06T1/00 ,  B41J3/46

CPC classification number: B41F33/0081 ,  B41P2233/52

Abstract: A method for detecting image position errors, includes forming a first pattern with a symbol embedded therein and a second pattern which, when superpositioned on the first pattern, exposes the symbol if the misalignment between the first and second patterns exceeds a position error tolerance. The symbol is perceivable with the unaided eye even if the misalignment is imperceivable to the unaided eye.

Abstract translation: 一种用于检测图像位置误差的方法，包括：形成具有嵌入其中的符号的第一图案，以及当第一图案上叠加时，如果第一图案和第二图案之间的未对准超过位置误差容限，则第二图案被曝光。 即使无肉眼睛不能对准，该符号也可以用肉眼察觉。