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15 条记录 (耗时 0.023 秒)

    Method for direct phase measurement of radiation, particularly light radiation, and apparatus for performing the method
    14.
    发明授权
    Method for direct phase measurement of radiation, particularly light radiation, and apparatus for performing the method 失效
    用于辐射，特别是光辐射的直接相位测量的方法，以及用于执行该方法的装置

    公开(公告)号：US5155363A

    公开(公告)日：1992-10-13

    申请号：US581865

    申请日：1990-09-13

    申请人： Hans Steinbichler ,  Jorg Gutjahr

    发明人： Hans Steinbichler ,  Jorg Gutjahr

    IPC分类号： G01B9/02 ,  G01B11/24 ,  G01J9/00 ,  G01J9/02

    CPC分类号： G01J9/00 ,  G01B9/02041 ,  G01B9/02094 ,  G01J9/02 ,  G01J9/0215

    摘要： A method for direct phase measurement of radiation, more particularly light radiation, which is reflected by a body or object with a diffusely reflecting surface. In order to make possible measurement of the phase with the production of a single image, the object or body is irradiated with coherent radiation having a predetermined frequency. The reflected radiation is used to produce an image in an image plane using an image forming optical system, a sensor with a plurality of preferably regularly arranged sensor elements being located in the plane. There is a superimposition of reference radiation on the sensor with the same frequency and with a defined phase relationship. In the case of directed object rays coming from a mirror-like body or object, the reference beam is set so that one period of the interference field produced on the sensor by the superimposition of the object and reference beams covers at least three sensor elements. The image forming optical system is designed and set so that the images of the speckles produced by the radiation on the object or body cover at least three sensor elements in the image plane. The phase of the radiation from the object or body is determined on the basis of the intensity signals of the at least three sensor elements.

    摘要翻译： 用于直接相位测量辐射的方法，更具体地说，是由具有漫反射表面的身体或物体反射的光辐射。 为了使单个图像的产生可以测量相位，用具有预定频率的相干辐射照射物体或身体。 反射辐射用于使用图像形成光学系统在图像平面中产生图像，具有多个优选规则排列的传感器元件的传感器位于平面中。 参考辐射在传感器上具有相同频率和定义的相位关系的叠加。 在来自镜像体或物体的定向物体光线的情况下，参考光束被设定为使得通过对象和参考光束的叠加在传感器上产生的干涉场的一个周期覆盖至少三个传感器元件。 图像形成光学系统的设计和设置使得由物体或身体上的辐射产生的斑点的图像覆盖图像平面中的至少三个传感器元件。 基于至少三个传感器元件的强度信号来确定来自物体或物体的辐射的相位。

    Method for the optical determination and comparison of shapes and positions of objects, and arrangement for practicing said method
    15.
    发明授权
    Method for the optical determination and comparison of shapes and positions of objects, and arrangement for practicing said method 失效
    光学确定方法和形状与对象位置的比较，以及实施方法的布置

    公开(公告)号：US4111557A

    公开(公告)日：1978-09-05

    申请号：US670104

    申请日：1976-03-25

    申请人： Hans Rottenkolber ,  Hans Steinbichler

    发明人： Hans Rottenkolber ,  Hans Steinbichler

    IPC分类号： G01B9/021 ,  G01B11/24 ,  G01D5/26

    CPC分类号： G01D5/26 ,  G01B11/2441

    摘要： The specification describes a method for the optical determination of departures in shape, changes in shape, and changes in position. In the method by means of light rays patterns are produced on the object and the patterns are represented by a photoelectronic device. Light rays originating from a coherent light source are projected by lenses or mirrors or holographically as a line or lines and/or point arrangements on an object, which are represented by means of an objective on an optoelectronic receiving device. In it they are converted into electric pulses, which after analog-digital conversion in an electronic computing unit are stored and are digitally coordinated with spatial coordinates. The data so obtained are compared with the data, obtained in the same manner, of the same object before its change in shape or position or with the data of an ideal or real object determining its ideal shape.