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公开(公告)号：US20060226335A1
公开(公告)日：2006-10-12
申请号：US11385549
申请日：2006-03-21
申请人： Wolfram Runge , Sebastian Pastor , Christoph Egger
发明人： Wolfram Runge , Sebastian Pastor , Christoph Egger
IPC分类号： G02B27/40
CPC分类号： G06K7/10811 , G02B7/28
摘要： The invention relates to an apparatus for the determination of the focal distance of an optical imaging system comprising a first partly reflecting element and a second partly reflecting element which are arranged in the beam path at an angle to the optical axis such that a first portion of the light is reflected at the first element into a first light field, a second portion of the light is reflected at the second element into a second light field and a third portion of the light passes through both elements to form a third light field, and an optical detection device to register at least a part of an interference pattern in the overlap region of the first and second light fields. The invention furthermore relates to an optical imaging system comprising an apparatus in accordance with the invention for the determination of the focal distance and a laser scanner having an optical imaging system in accordance with the invention. Finally, the invention relates to a method for the determination of the focal distance of an optical imaging system with a variable focal distance.
摘要翻译： 本发明涉及一种用于确定光学成像系统的焦距的装置，该光学成像系统包括第一部分反射元件和第二部分反射元件，该第一部分反射元件和第二部分反射元件以与光轴成一定角度布置在光束路径中，使得第一部分 光在第一元件处被反射成第一光场，第二部分的光在第二元件处被反射成第二光场，并且光的第三部分通过两个元件以形成第三光场，并且 光检测装置，用于在第一和第二光场的重叠区域中登记干涉图案的至少一部分。 本发明还涉及一种光学成像系统，其包括根据本发明的用于确定焦距的装置和具有根据本发明的光学成像系统的激光扫描仪。 最后，本发明涉及用于确定具有可变焦距的光学成像系统的焦距的方法。
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公开(公告)号：US06488208B1
公开(公告)日：2002-12-03
申请号：US09351744
申请日：1999-07-08
申请人： Wolfram Runge , Sebastian Pastor
发明人： Wolfram Runge , Sebastian Pastor
IPC分类号： G06K710
CPC分类号： G06K7/10702
摘要： The invention relates to a bar code reading apparatus of the sensing for a bar code along a scanning direction, comprising a light source to produce a transmitted light beam and a diaphragm to restrict the cross-section of the transmitted light beam, wherein the diaphragm has a diaphragm aperture, the boundary of which has four adjoining sections, of which two sections lie opposite to one another and extend substantially transverse to the scanning direction (transverse sections), and of which two sections lie opposite to one another and extend substantially along the scanning direction (longitudinal sections). In order to compensate for diffraction effects of the transmitted light beam, the boundary of the diaphragm aperture has at least one compensatory projection at at least one transverse section, with the compensatory projection projecting as an intermediate extremity into the diaphragm aperture with respect to this cross-section in the direction towards the oppositely disposed cross-section
摘要翻译： 本发明涉及一种沿着扫描方向的条形码感测的条形码读取装置，包括产生透射光束的光源和限制透射光束横截面的光阑，其中光阑具有 隔膜孔，其边界具有四个邻接部分，其两个部分彼此相对并且基本上横向于扫描方向（横截面）延伸，并且其中两个部分彼此相对并且基本上沿着 扫描方向（纵剖面）。 为了补偿透射光束的衍射效应，光阑孔口的边界在至少一个横截面处具有至少一个补偿突起，其中补偿突起作为中间端突出到相对于该十字的隔膜孔中 在朝向相对设置的横截面的方向上
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公开(公告)号：US20080151218A1
公开(公告)日：2008-06-26
申请号：US12001996
申请日：2007-12-12
IPC分类号： G01C3/08
CPC分类号： G01S17/10 , G01S7/484 , G01S7/4868 , G01S7/497 , G01S17/42
摘要： A laser scanner which operates pursuant to the elapsed time principle and which has a pulsed laser that directs successive light pulses into a monitored region. The laser scanner further has a light receiving arrangement for receiving light pulses reflected by an object in the monitored region and that generates electric received signals which are fed to an evaluation unit for determining a distance between the object and the laser scanner based on the elapsed time between the emission of the light pulse and the receipt of the reflected pulse and the speed of light from which a distance signal is formed that is representative of the distance between the object and the scanner. There is a light diverter unit between the pulsed laser and the monitored region which continuously directs light pulses along different directions into the monitored region. A light source is provided which emits a light measuring signal of reduced strength which is also continuously directed into the monitored region in continuously changing directions. The light receiving arrangement is configured to receive the light measuring signal reflected by the object in the monitored region and to generate a reflection signal that is representative of the reflection characteristics of the object. The light pulses and the receiving signals are changeable in dependency of the reflection signal.
摘要翻译： 一种激光扫描器，其根据经过的时间原理操作并具有将连续的光脉冲引导到监视区域中的脉冲激光器。 该激光扫描器还具有一个光接收装置，用于接收由被监视区域中的物体反射的光脉冲，并产生电接收信号，该电接收信号被馈送到评估单元，用于基于经过时间确定物体和激光扫描器之间的距离 在光脉冲的发射和反射脉冲的接收之间以及形成距离信号的光速，其代表物体和扫描仪之间的距离。 在脉冲激光器和被监测区域之间有一个光分路器单元，它将不同方向的光脉冲连续地引导到被监测的区域。 提供一种光源，其发射强度降低的光测量信号，其也连续地引导到连续变化的方向上的监视区域中。 光接收装置被配置为接收由被监视区域中的对象反射的光测量信号并产生代表对象的反射特性的反射信号。 光脉冲和接收信号可以根据反射信号而改变。
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公开(公告)号：US06852991B2
公开(公告)日：2005-02-08
申请号：US10152168
申请日：2002-05-20
CPC分类号： G01V8/22
摘要： The invention relates to an optoelectronic sensor which has a transmission device for transmitting a strip illumination in the direction of an object zone, a reception device for receiving light reflected or remitted from the object zone and for outputting at least one corresponding reception signal and an evaluation device for evaluating the at least one reception signal. A division of the strip illuminated object region into a plurality of monitoring segments is provided. Furthermore, a distance measuring device is provided by which, for at least one monitoring segment, the distance to an object disposed therein can be determined.
摘要翻译： 本发明涉及一种光电传感器，其具有用于沿物体区域的方向传送条带照明的传输装置，用于接收从物体区域反射或放出的光并用于输出至少一个对应的接收信号和评价的光接收装置 用于评估所述至少一个接收信号的装置。 提供了带状照明对象区域分割成多个监视段。 此外，还提供一种距离测量装置，通过该距离测量装置，可以确定至少一个监视段到设置在其中的物体的距离。
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公开(公告)号：US07589826B2
公开(公告)日：2009-09-15
申请号：US12001996
申请日：2007-12-12
CPC分类号： G01S17/10 , G01S7/484 , G01S7/4868 , G01S7/497 , G01S17/42
摘要： A laser scanner which operates pursuant to the elapsed time principle and which has a pulsed laser that directs successive light pulses into a monitored region. The laser scanner further has a light receiving arrangement for receiving light pulses reflected by an object in the monitored region and that generates electric received signals which are fed to an evaluation unit for determining a distance between the object and the laser scanner based on the elapsed time between the emission of the light pulse and the receipt of the reflected pulse and the speed of light from which a distance signal is formed that is representative of the distance between the object and the scanner. There is a light diverter unit between the pulsed laser and the monitored region which continuously directs light pulses along different directions into the monitored region. A light source is provided which emits a light measuring signal of reduced strength which is also continuously directed into the monitored region in continuously changing directions. The light receiving arrangement is configured to receive the light measuring signal reflected by the object in the monitored region and to generate a reflection signal that is representative of the reflection characteristics of the object. The light pulses and the receiving signals are changeable in dependency of the reflection signal.
摘要翻译： 一种激光扫描器，其根据经过的时间原理操作并具有将连续的光脉冲引导到监视区域中的脉冲激光器。 该激光扫描器还具有一个光接收装置，用于接收由被监视区域中的物体反射的光脉冲，并产生电接收信号，该电接收信号被馈送到评估单元，用于基于经过时间确定物体与激光扫描器之间的距离 在光脉冲的发射和反射脉冲的接收之间以及形成距离信号的光速，其代表物体和扫描仪之间的距离。 在脉冲激光器和被监测区域之间有一个光分路器单元，它将不同方向的光脉冲连续地引导到被监测的区域。 提供一种光源，其发射强度降低的光测量信号，其也连续地引导到连续变化的方向上的监视区域中。 光接收装置被配置为接收由被监视区域中的对象反射的光测量信号并产生代表对象的反射特性的反射信号。 光脉冲和接收信号可以根据反射信号而改变。
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公开(公告)号：US06765393B2
公开(公告)日：2004-07-20
申请号：US10158557
申请日：2002-05-29
IPC分类号： G01R2704
摘要： Techniques for determining the distance between a measuring apparatus and an object are provided. The measuring apparatus includes a transmitter, a receiver and a filter module having a defined phase frequency characteristic, in which a modulated signal, in particular a light signal, is transmitted in the direction of the object by the transmitter, the signal reflected by the object is received by the receiver and the output signal of the receiver is delivered to the transmitter at least via the filter module, wherein at least the transmitter, the receiver and the filter module form a resonant circuit, the frequency of resonance of the resonant circuit is measured and the distance is determined from the frequency of resonance. The respective frequency of resonance of the resonant circuit is determined for at least two different phase frequency characteristics.
摘要翻译： 提供了用于确定测量装置和物体之间的距离的技术。 测量装置包括具有定义的相位频率特性的发射器，接收器和滤波器模块，其中调制信号，特别是光信号由发射器在物体的方向上传输，由对象反射的信号 由接收机接收并且至少经由滤波器模块将接收机的输出信号传送到发射机，其中至少发射机，接收机和滤波器模块形成谐振电路，谐振电路的谐振频率为 测量距离是根据共振频率确定的。 对于至少两个不同的相位频率特性来确定谐振电路的谐振频率。
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