公开(公告)号：US06841772B1

公开(公告)日：2005-01-11

申请号：US10139837

申请日：2002-05-03

Applicant: Thomas J. Hamilton

Inventor： Thomas J. Hamilton

IPC: A61F9/06 ,  G02F1/1335 ,  H01J40/14

CPC classification number: G01J1/04 ,  A61F9/065 ,  G01J1/0418 ,  G01J1/32 ,  G01J2001/0276

Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a clear state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, and a delivery circuit. The sensing circuit senses incident light and provides an output indicative of the incident light. The weld detect circuit receives the output of the sensing circuit, and enables a dark state drive signal to be delivered to the shutter assembly. The delivery circuit outputs the dark state drive signal to the shutter assembly to switch the shutter assembly from the clear state to the dark state upon enablement by the weld detect circuit. The dark state drive signal includes a high voltage pulse followed by a stable AC waveform. The high voltage pulse is formed by a positive voltage signal and a negative voltage signal.

Abstract translation: 一种自动变暗眼保护装置，包括快门组件和控制电路。 快门组件可在清晰状态和暗态之间调节。 控制电路包括感测电路，焊接检测电路和输送电路。 感测电路感测入射光并提供指示入射光的输出。 焊接检测电路接收感测电路的输出，并且能够将暗状态驱动信号传送到快门组件。 输送电路将暗状态驱动信号输出到快门组件，以在通过焊接检测电路启用时将快门组件从清除状态切换到暗状态。 暗态驱动信号包括高电压脉冲，后跟稳定的交流波形。 高压脉冲由正电压信号和负电压信号形成。

公开(公告)号：US06815652B1

公开(公告)日：2004-11-09

申请号：US09659100

申请日：2000-09-11

Applicant: Thomas Joe Hamilton

Inventor： Thomas Joe Hamilton

IPC: G01J132

CPC classification number: A61F9/06 ,  G01J1/46 ,  G01J2001/0276

Abstract: A sensor circuit for detecting the occurrence of welding is disclosed. The sensor circuit uses a phototransistor operative to receive a light input and produce an output representative thereof. A resistor is coupled between the phototransistor's base and emitter to control the phototransistor's response to low intensity and high intensity light. An amplifier may be coupled to the output of the phototransistor so as to provide a gain for the output of the phototransistor; and feedback means may coupled to the phototransistor to bias the phototransistor, the feedback means comprising a resistor capacitor circuit for following the output of the phototransistor, a feedback transistor to provide a feedback signal to the phototransistor, and a resistor coupled between the base and the emitter of the phototransistor. Preferably the phototransistor is a planar phototransistor having a surface mount. The sensor circuit may also be used in an auto-darkening eye protection device, such as a welding helmet or the like, that delivers a drive signal to a shutter assembly upon the detection of welding, the drive signal being operative to drive the shutter assembly to a darkened, protective state. A solar cell may be used to reduce the circuit's power consumption by powering various circuit components only when the welding helmet is exposed to light. The present invention provides reduced power consumption, improved attenuation of low intensity light signals, a sharp rise time from the phototransistor in response to high intensity light, and allows implementation into a smaller sleeker eye protection device.

Abstract translation: 公开了一种用于检测焊接发生的传感器电路。 传感器电路使用可操作的光电晶体管来接收光输入并产生其代表的输出。 电阻耦合在光电晶体管的基极和发射极之间，以控制光电晶体管对低强度和高强度光的响应。 放大器可以耦合到光电晶体管的输出，以便为光电晶体管的输出提供增益; 并且反馈装置可以耦合到光电晶体管以偏置光电晶体管，反馈装置包括用于跟随光电晶体管的输出的电阻电容器电路，用于向光电晶体管提供反馈信号的反馈晶体管，以及耦合在基极和 光电晶体管的发射极。 优选地，光电晶体管是具有表面安装的平面光电晶体管。 传感器电路还可以用于自动变暗眼保护装置，例如焊接头盔等，其在检测到焊接时将驱动信号传递到快门组件，驱动信号可操作以驱动快门组件 变暗，保护状态。 只有当焊接头盔暴露于光时，可以通过为各种电路部件供电来减少电路的功率消耗。 本发明提供了降低的功率消耗，改善的低强度光信号的衰减，响应于高强度光从光电晶体管的急剧上升时间，并且允许实现到较小的时尚眼睛保护装置中。

公开(公告)号：US20040188617A1

公开(公告)日：2004-09-30

申请号：US10703136

申请日：2003-11-06

Inventor： John W. Devitt ,  Mark E. Greiner ,  Jeffrey J. Voelker ,  David R. Wade

IPC: G01J005/00

CPC classification number: G01J5/06 ,  G01J1/04 ,  G01J1/0407 ,  G01J1/0414 ,  G01J1/0418 ,  G01J1/0488 ,  G01J1/42 ,  G01J2001/0276 ,  G02F1/0126 ,  G02F2203/11 ,  G02F2203/52

Abstract: An apparatus for selectively limiting undesired radiation from a scene is provided. One embodiment includes an optic that is operative to attenuate radiation by selectively losing transparency in response to radiation within a first wavelength band from a source, wherein the loss of transparency affects the passage through the optic of radiation within a second wavelength band from that source. The optic can be positioned between a sensor and the scene such that the sensor is configured to receive radiation from the scene through the optic. Also disclosed is an optical limiter which in one embodiment includes a plurality of such optics, wherein the optical limiter is configured to facilitate transmission of light corresponding to a scene, and wherein each optic is configured to receive a respective portion of the light corresponding to a respective portion of the scene. A light detector assembly and a method of limiting light energy are further disclosed.

Abstract translation: 提供了用于选择性地限制来自场景的不需要的辐射的装置。 一个实施例包括光学器件，其可操作以通过响应于来自源的第一波长带内的辐射而选择性地失去透明度来衰减辐射，其中透明度的损失影响来自该源的第二波长带内的辐射的光学器件的通过。 光学元件可以位于传感器和场景之间，使得传感器被配置成通过光学器件从场景接收辐射。 还公开了一种光限制器，其在一个实施例中包括多个这样的光学器件，其中光学限制器被配置为促进对应于场景的光的传输，并且其中每个光学器件被配置为接收对应于一个 场景的各个部分。 进一步公开了光检测器组件和限制光能的方法。

公开(公告)号：US20040031907A1

公开(公告)日：2004-02-19

申请号：US10640851

申请日：2003-08-14

Inventor： Jon H. Bechtel ,  Joseph S. Stam ,  John K. Roberts

IPC: H01L027/00

CPC classification number: B60Q1/1423 ,  B60Q1/143 ,  B60Q2300/052 ,  B60Q2300/21 ,  B60Q2300/312 ,  B60Q2300/314 ,  B60Q2300/41 ,  B60Q2300/42 ,  G01J1/0214 ,  G01J1/04 ,  G01J1/0407 ,  G01J1/0411 ,  G01J1/0488 ,  G01J1/0492 ,  G01J1/32 ,  G01J1/4228 ,  G01J2001/0276 ,  H01L27/14618 ,  H01L27/14625 ,  H01L27/14643 ,  H01L2924/0002 ,  H04N9/045 ,  H01L2924/00

Abstract: An imaging system for use in a vehicle headlamp control system includes an opening, an image sensor, a red lens blocking red complement light between the opening and the image sensor, and a red complement lens blocking red light between the opening and the image sensor. Each lens focuses light onto a different subwindow of the image sensor. The imaging system allows processing and control logic to detect the presence of headlamps on oncoming vehicles and tail lights on vehicles approached from the rear for the purpose of controlling headlamps. A light sampling lens may be used to redirect light rays from an arc spanning above the vehicle to in front of the vehicle into substantially horizontal rays. The light sampling lens is imaged by the image sensor to produce an indication of light intensity at various elevations. The processing and control logic uses the light intensity to determine whether headlamps should be turned on or off. A shutter may be used to protect elements of the imaging system from excessive light exposure.

Abstract translation: 一种用于车辆前照灯控制系统的成像系统，包括开口，图像传感器，在开口和图像传感器之间阻挡红色补充光的红色透镜以及阻挡开口和图像传感器之间的红光的红色补充透镜。 每个镜头将光线聚焦到图像传感器的不同子窗口上。 成像系统允许处理和控制逻辑来检测来自后方车辆的车辆前照灯和从后方驶来的尾灯上是否存在用于控制前照灯的目的。 光采样透镜可以用于将来自车辆上方的弧光的光线重新定向到车辆前方的基本上水平的射线。 光采样透镜由图像传感器成像，以产生各种高度的光强度的指示。 处理和控制逻辑使用光强度来确定是否应该打开或关闭头灯。 可以使用快门来保护成像系统的元件免受过度的曝光。

公开(公告)号：US06552316B1

公开(公告)日：2003-04-22

申请号：US09465894

申请日：1999-12-17

Applicant: Young Dawn Bae

Inventor： Young Dawn Bae

IPC: G01J120

CPC classification number: G01J1/26 ,  A61F9/065 ,  G01J2001/0276 ,  G02C7/101

Abstract: A glare protecting device for protecting a worker's eyes from a light comprising a solar cell for generating a solar voltage when the light is applied thereto; an optical detector for generating a light detecting signal by detecting the light; a non-optical detector for generating an electromagnetic wave detecting signal by detecting an electromagnetic wave; a controller transferring to an operating mode when the light detecting signal is changed, disabling a driving control signal when the driving control signal is enabled, generating a starting signal and enabling the driving control signal in case that the light and/or electromagnetic wave detecting signal is produced when the driving control signal is disabled, and then transferring to a stop mode; a driving means for generating a driving signal by inputting a starting voltage in response to the starting signal and a driving voltage in response to the driving signal; and a glare protecting plate which is driven in response to the driving signal.

Abstract translation: 一种眩光保护装置，用于保护工人的眼睛免受包括太阳能电池在内的光的照射，当太阳能电池被施加到太阳能电池时产生太阳能电压; 光检测器，用于通过检测光产生光检测信号; 用于通过检测电磁波产生电磁波检测信号的非光学检测器; 当光检测信号改变时，控制器转移到操作模式，当驱动控制信号被使能时禁止驱动控制信号，产生启动信号并且在光和/或电磁波检测信号的情况下启动驱动控制信号 当驱动控制信号被禁用时产生，然后转移到停止模式; 驱动装置，用于通过响应于所述驱动信号而响应于所述启动信号和驱动电压输入起动电压来产生驱动信号; 以及响应于驱动信号而驱动的防眩光板。

公开(公告)号：US20020121587A1

公开(公告)日：2002-09-05

申请号：US10028391

申请日：2001-12-22

Inventor： Hubert Becht

IPC: G01J001/20

CPC classification number: G01J1/04 ,  G01J1/044 ,  G01J1/26 ,  G01J1/4257 ,  G01J5/62 ,  G01J2001/0276 ,  G01J2001/0285

Abstract: Radiation receiver with a photodetector and a sensor, wherein the sensor receives the radiation intensity, and a shutter arranged before the photodetector is driven in dependence on the detected incident radiation intensity. The incident radiation is supplied to the photodetector via a delay device arranged before the shutter, so that no radiation destroying the photodetector can reach the photodetector, due to the shutter having been driven, and can if necessary be kept away or absorbed by the shutter.

Abstract translation: 具有光电检测器和传感器的辐射接收器，其中传感器接收辐射强度，以及根据检测到的入射辐射强度而在光电检测器被驱动之前设置的快门。 入射辐射通过布置在快门之前的延迟装置提供给光电检测器，使得由于已经被驱动的闸门，不会破坏光电检测器的辐射不会到达光电检测器，并且如果需要，可以将其保持远离或被快门吸收。

公开(公告)号：US06291812B1

公开(公告)日：2001-09-18

申请号：US09677906

申请日：2000-10-03

Applicant: Jon H. Bechtel ,  Joseph S. Stam ,  John K. Roberts

Inventor： Jon H. Bechtel ,  Joseph S. Stam ,  John K. Roberts

IPC: B60Q108

CPC classification number: B60Q1/1423 ,  B60Q1/143 ,  B60Q2300/052 ,  B60Q2300/21 ,  B60Q2300/312 ,  B60Q2300/314 ,  B60Q2300/41 ,  B60Q2300/42 ,  G01J1/0214 ,  G01J1/04 ,  G01J1/0407 ,  G01J1/0411 ,  G01J1/0488 ,  G01J1/0492 ,  G01J1/32 ,  G01J1/4228 ,  G01J2001/0276 ,  H01L27/14618 ,  H01L27/14625 ,  H01L27/14643 ,  H01L2924/0002 ,  H04N9/045 ,  H01L2924/00

Abstract: An imaging system for use in a vehicle headlamp control system includes an opening, an image sensor, a red lens blocking red complement light between the opening and the image sensor, and a red complement lens blocking red light between the opening and the image sensor. Each lens focuses light onto a different subwindow of the image sensor. The imaging system allows processing and control logic to detect the presence of headlamps on oncoming vehicles and tail lights on vehicles approached from the rear for the purpose of controlling headlamps. A light sampling lens may be used to redirect light rays from an arc spanning above the vehicle to in front of the vehicle into substantially horizontal rays. The light sampling lens is imaged by the image sensor to produce an indication of light intensity at various elevations. The processing and control logic uses the light intensity to determine whether headlamps should be turned on or off. A shutter may be used to protect elements of the imaging system from excessive light exposure.

Abstract translation: 一种用于车辆前照灯控制系统的成像系统，包括开口，图像传感器，阻挡红色补充光的红色透镜，位于开口和图像传感器之间，红色补丁透镜阻挡开口和图像传感器之间的红光。 每个镜头将光线聚焦到图像传感器的不同子窗口上。 成像系统允许处理和控制逻辑来检测来自后方车辆的车辆前照灯和从后方驶来的尾灯上是否存在用于控制前照灯的目的。 光采样透镜可以用于将来自车辆上方的弧光的光线重新定向到车辆前方的基本上水平的射线。 光采样透镜由图像传感器成像，以产生各种高度的光强度的指示。 处理和控制逻辑使用光强度来确定是否应该打开或关闭头灯。 可以使用快门来保护成像系统的元件免受过度的曝光。

公开(公告)号：US5844668A

公开(公告)日：1998-12-01

申请号：US704334

申请日：1996-08-28

Applicant: Chris Lepain ,  Ralph Rebner

Inventor： Chris Lepain ,  Ralph Rebner

IPC: G01J1/02 ,  G01J1/04 ,  G01J5/04 ,  G01J5/48 ,  G01N21/00

CPC classification number: G01J1/04 ,  G01J1/0407 ,  G01J5/041 ,  G01J2001/0276

Abstract: This invention describes a method and apparatus for protecting optical sensors in harsh industrial environments, particularly welding and machining. In a preferred embodiment, a sacrificial window is utilized which is replaced as needed. Numerous design features of such windows are disclosed. Other embodiments include protective baffles and other features.

Abstract translation: 本发明描述了一种用于在苛刻的工业环境中保护光学传感器的方法和装置，特别是焊接和加工。 在优选实施例中，利用牺牲窗口根据需要进行替换。 公开了这种窗口的许多设计特征。 其他实施例包括保护性挡板和其它特征。

公开(公告)号：US4846559A

公开(公告)日：1989-07-11

申请号：US3953

申请日：1987-01-16

Applicant: Norbert Kniffler

Inventor： Norbert Kniffler

IPC: G02F1/13 ,  G01J1/02 ,  G01J1/26 ,  G01J1/42 ,  G02F1/133 ,  G02F1/135

CPC classification number: G01J1/42 ,  G01J1/26 ,  G01J2001/0276

Abstract: A sensor element with a memory for changes of the incident light intensity. The sensor element comprises a light-sensitive element connected in series with a fixed resistor, and a light modulator shunted either across the light-sensitive element or the resistor. The light modulator influences the incidence of light onto the light-sensitive element. The reflection, absorption and/or transmission behavior of the light modulator changes as a function of the applied voltage or the current. The sensor element according to the invention has the advantage that it can be manufactured simply and cost-effectively so that it is also suitable for use in large arrays.

Abstract translation: 具有用于入射光强度变化的存储器的传感器元件。 传感器元件包括与固定电阻器串联连接的光敏元件，以及分别分布在光敏元件或电阻器上的光调制器。 光调制器影响光对光敏元件的入射。 光调制器的反射，吸收和/或透射行为随施加的电压或电流而变化。 根据本发明的传感器元件的优点是可以简单和经济地制造，使得它也适用于大型阵列。

公开(公告)号：US3742239A

公开(公告)日：1973-06-26

申请号：US3742239D

申请日：1961-06-06

Applicant: EMI LTD

Inventor： GALE F

IPC: F42C13/02 ,  G01J1/02 ,  G01J1/04 ,  G01J1/42 ,  H01J39/00

CPC classification number: F42C13/02 ,  G01J1/0209 ,  G01J1/04 ,  G01J1/0411 ,  G01J1/4228 ,  G01J2001/0276

Abstract: 1. A target discriminating device comprising a plurality of radiation sensitive elements distributed in rows and columns over an image area, means for condensing incident radiation to form an image on said area, a plurality of row conductors corresponding to the rows of said sensitive elements, a plurality of column conductors corresponding to the columns of said sensitive elements, the row conductors being coupled to the column conductors by the sensitive elements in the respective rows and columns, means for sequentially sampling said column conductors to cause a signal to appear selectively in the row conductors in dependence upon the excitation of the said sensitive elements, an output channel common to said row conductors, coupling means including isolating two-state devices, one for each row conductor, arranged to pass a signal from the respective row conductor to the output channel once only within a predetermined time interval and means for additionally applying a signal to said output channel at each sampling instant, other than via the row conductors, in response to excitation of any sensitive element in the respective column, said output channel including means for generating an output signal only in response to a plural number of successively applied discrete signals within said time interval.

Abstract translation: 1.一种目标识别装置，包括在图像区域上以行和列分布的多个辐射敏感元件，用于聚集入射辐射以在所述区域上形成图像的装置，对应于所述敏感元件的行的多个行导体， 对应于所述敏感元件的列的多个列导体，行导体通过相应列和列中的敏感元件耦合到列导体，用于顺序采样所述列导体以使信号选择性地出现在 行导体，其依赖于所述敏感元件的激励，所述行导体共同的输出通道，耦合装置包括隔离两状态器件，每个行导体一个用于将来自相应行导体的信号传递到输出 通道仅在预定时间间隔内一次，并且用于附加地向sai施加信号的装置 d响应于相应列中的任何敏感元件的激励而在每个采样时刻的除了经由行导体之外的输出通道，所述输出通道包括仅响应于多个连续施加的离散信号产生输出信号的装置 在所述时间间隔内。