Low power phototransistor-based welding helmet providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light
    21.
    发明授权
    Low power phototransistor-based welding helmet providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light 有权
    基于低功率光电晶体管的焊接头盔,对低强度光线和尖锐的光电晶体管响应高强度光线的灵敏度降低

    公开(公告)号:US07358472B2

    公开(公告)日:2008-04-15

    申请号:US11363391

    申请日:2006-02-27

    Abstract: An auto darkening eye protection device including a shutter assembly, a light sensing circuit, a control circuit and a power source. The shutter assembly is adjustable to a plurality of shade levels. The phototransistor of the light sensing circuit senses light from a welding arc and provides an output of the light sensing circuit indicative of the shade level at which the shutter assembly should be operated. The phototransistor is configured for surface mount and has an external base connection connected to the base of the phototransistor. The control circuit is configured to receive the output from the light sensing circuit and provide a drive signal to the shutter assembly responsive to said output, drives the shutter assembly to one of said plurality of shade levels. 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: 一种自动变暗眼保护装置,包括快门组件,感光电路,控制电路和电源。 快门组件可调节到多个阴影层。 光感测电路的光电晶体管感测来自焊接电弧的光,并且提供光感测电路的输出,其指示应该操作快门组件的色阶。 光电晶体管被配置为表面安装,并且具有连接到光电晶体管的基极的外部基极连接。 控制电路被配置为接收来自光感测电路的输出,并响应于所述输出向快门组件提供驱动信号,将快门组件驱动到所述多个色阶中的一个。 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。

    Low power glare sensor
    22.
    发明申请
    Low power glare sensor 有权
    低功率眩光传感器

    公开(公告)号:US20070012869A1

    公开(公告)日:2007-01-18

    申请号:US11434599

    申请日:2006-05-13

    Abstract: The invention may be embodied as a glare detection system or as a method of detecting glare. In a system according to the invention, there may be a light receiving surface, a first input channel, a second input channel, a glare signaling circuit and a glare reducing circuit. The first input channel may provide an indication of the amount of light impinging on a first portion of the light receiving surface. The second input channel may provide an indication of the amount of light impinging on a second portion of the light receiving surface. The glare signaling circuit (“GSC”) may have a first input port in communication with the first input channel, a second input port in communication with the second input channel, a logic-or gate capable of producing an output signal when the logic-or gate detects that the first input channel or the second input channel indicates glare on the light receiving surface. The glare reducing circuit (“GRC”) may be in communication with the logic-or gate, and may be capable of reacting when the logic-or gate produces the output signal. For example, the GRC may react by determining where on the light receiving surface glare exists.

    Abstract translation: 本发明可以被实施为眩光检测系统或者作为检测眩光的方法。 在根据本发明的系统中,可以存在光接收表面,第一输入通道,第二输入通道,眩光信号电路和眩光减少电路。 第一输入通道可以提供照射在光接收表面的第一部分上的光量的指示。 第二输入通道可以提供照射在光接收表面的第二部分上的光量的指示。 眩光信号电路(“GSC”)可以具有与第一输入通道通信的第一输入端口,与第二输入通道通信的第二输入端口,能够产生逻辑 - 或门检测到第一输入通道或第二输入通道在光接收表面上指示眩光。 眩光降低电路(“GRC”)可以与逻辑门或栅极通信,并且可以在逻辑或门产生输出信号时反应。 例如,GRC可以通过确定在光接收表面上存在眩光的位置来进行反应。

    Vehicle vision system
    24.
    发明授权
    Vehicle vision system 失效
    车辆视觉系统

    公开(公告)号:US06924470B2

    公开(公告)日:2005-08-02

    申请号:US10640851

    申请日:2003-08-14

    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。

    Protection for optical sensors in industrial applications
    26.
    发明授权
    Protection for optical sensors in industrial applications 有权
    保护工业应用中的光学传感器

    公开(公告)号:US6108072A

    公开(公告)日:2000-08-22

    申请号:US201669

    申请日:1998-12-01

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

    Abstract: This invention describes 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。

    Glare protection device
    27.
    发明授权
    Glare protection device 失效
    防眩光保护装置

    公开(公告)号:US5880793A

    公开(公告)日:1999-03-09

    申请号:US909104

    申请日:1997-08-12

    CPC classification number: G01J1/26 A61F9/067 G01J2001/0276 G02F1/13318

    Abstract: Electro-optical glare protection device is disclosed for use with protective glasses, protective helmets or protective masks with at least one optical detector, especially a photodiode, with an electro-optical glare protection plate incorporating at least one liquid crystal cell, and with an electronic circuit for the adjustment and setting of the optical transmission of this glare protection plate. The protective device comprises a non-optical detector and a switch connected to the electronic circuit for adjusting the optical transmission of the glare protection plate. The switch links the signals produced by these detectors with each other as an and/or circuit. The electronic circuit generates corresponding switch signals.

    Abstract translation: 公开了一种电光眩光保护装置,其与具有至少一个光学检测器,特别是光电二极管的防护眼镜,保护头盔或保护罩一起使用,其具有结合至少一个液晶单元的电光眩光保护板,并且与电子 该眩光保护板光传输的调整和设置电路。 保护装置包括非光学检测器和连接到电子电路的开关,用于调节眩光保护板的光学传输。 开关将由这些检测器产生的信号彼此作为和/或电路连接。 电子电路产生相应的开关信号。

    Radiation projection arrangement with integrated radiation indicator
    28.
    发明授权
    Radiation projection arrangement with integrated radiation indicator 失效
    具有综合辐射指示器的辐射投影装置

    公开(公告)号:US5617250A

    公开(公告)日:1997-04-01

    申请号:US196077

    申请日:1994-02-15

    CPC classification number: G02B5/288 A61F9/023 G01J2001/0276

    Abstract: An arrangement is produced for protection against harmful effects of radiation and for indicating such radiation which can preferably be designed as a viewing window or as goggles and can be used for protecting the eyes from injury due to high-intensity electromagnetic radiation. It includes a transparent substrate and a sequence of thin optical layers which are applied to this substrate and are arranged according to the principle of an optical thin-film resonance absorber system.

    Abstract translation: PCT No.PCT / EP93 / 01647 Sec。 371日期1994年2月15日 102(e)日期1994年2月15日PCT提交1993年6月28日PCT公布。 第WO94 / 01793号公报 日期1994年1月20日为了防止辐射的有害影响和指示这种辐射的安排是为了防止辐射受到影响,其优选可被设计为观察窗或护目镜,并且可用于保护眼睛免受高强度电磁辐射的伤害 。 它包括透明衬底和一系列薄的光学层,其被施加到该衬底上并且根据光学薄膜共振吸收体系的原理进行布置。

    Optical protection using smectic liquid crystal
    30.
    发明授权
    Optical protection using smectic liquid crystal 失效
    使用近晶晶体的光学保护

    公开(公告)号:US4765719A

    公开(公告)日:1988-08-23

    申请号:US10748

    申请日:1987-02-04

    CPC classification number: G02F1/1334 A61F9/067 G02F1/3511 G01J2001/0276

    Abstract: Apparatus (10) for responding to incident electromagnetic radiation (16) to prevent direct transmission thereof when the magnitude of E-vector exceeds a predetermined value includes a first medium (12) through which incident electromagnetic radiation may be transmitted and smectic liquid crystal (14) positioned with respect to the first medium for responding to such E-vector to undergo Kerr effect in proportion to such E-vector so as to cooperate with such first medium to effect refraction of such electromagnetic radiation at an interface of the first medium and liquid crystal to prevent direct transmission of such radiation when the E-vector exceeds such predetermined magnitude. Smectic to nematic phase transition also may be used to prevent direct light transmission when incident radiation causes heating in the liquid crystal material.A method for responding to incident electromagnetic radiation to prevent transmission when the E-vector of such radiation exceeds a predetermined magnitude for short pulses of such radiation includes receiving incident electromagnetic radiation, directing such incident electromagnetic radiation into a first medium through which incident electromagnetic radiation may be transmitted, using smectic liquid crystal positioned with respect to the first medium for responding to a characteristic of the incident electromagnetic radiation to cooperate with such first medium to effect refraction of such electromagnetic radiation at an interface of the first medium and the liquid crystal.

    Abstract translation: 当E矢量的大小超过预定值时,用于响应入射电磁辐射(16)以防止其直接传输的设备(10)包括可以传播入射电磁辐射的第一介质(12)和近晶液晶(14) )相对于第一介质定位以响应于此E向量以与该E向量成比例地进行克尔效应,以便与第一介质协作以在第一介质和液体的界面处实现这种电磁辐射的折射 晶体,以防止当E矢量超过预定幅度时这种辐射的直接传输。 当入射辐射引起液晶材料的加热时,也可以使用近晶系到向列相变来防止直接透光。 一种用于响应入射电磁辐射以防止当这种辐射的E矢量对于这种辐射的短脉冲超过预定幅度时的传播的方法包括接收入射的电磁辐射,将这种入射的电磁辐射引导到第一介质中,入射的电磁辐射可以通过该第一介质 使用相对于第一介质定位的相态液晶来响应入射电磁辐射的特性,以与第一介质协作以在第一介质和液晶的界面处实现这种电磁辐射的折射。

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