公开(公告)号：US07358472B2

公开(公告)日：2008-04-15

申请号：US11363391

申请日：2006-02-27

Applicant: Thomas Joe Hamilton

Inventor： Thomas Joe Hamilton

IPC: G01J1/32

CPC classification number: A61F9/061 ,  G01J1/04 ,  G01J1/0418 ,  G01J1/26 ,  G01J1/32 ,  G01J1/46 ,  G01J2001/0276

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。

公开(公告)号：US06855922B2

公开(公告)日：2005-02-15

申请号：US10827014

申请日：2004-04-19

Applicant: Thomas Joe Hamilton

Inventor： Thomas Joe Hamilton

IPC: A61F9/06 ,  G01J1/02 ,  G01J1/46 ,  G01J3/50

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：US08264265B2

公开(公告)日：2012-09-11

申请号：US12894739

申请日：2010-09-30

Applicant: Donald William Greiner ,  Thomas Joe Hamilton

Inventor： Donald William Greiner ,  Thomas Joe Hamilton

IPC: A61F9/06 ,  G02B5/30 ,  G02F1/1335

CPC classification number: A61F9/067

Abstract: An apparatus and methodology for operating an automatic darkening filter (ADF) eye protection device alternately applies an operating voltage to a pair of control terminals of an ADF device circuit in a continuing sequence, where a first polarity voltage is applied to the pair of terminals and then reversed. A delay period is provided between application of the alternating polarities. In some embodiments ground potential is applied to both terminals of the pair of terminals during the delay period.

Abstract translation: 用于操作自动暗化过滤器（ADF）眼睛保护装置的装置和方法以连续的顺序交替地对ADF装置电路的一对控制端子施加工作电压，其中第一极性电压施加到该对端子， 然后倒转。 在施加交替极性之间提供延迟时间。 在一些实施例中，在延迟时段期间，将接地电位施加到该对端子的两个端子。

公开(公告)号：US07005624B2

公开(公告)日：2006-02-28

申请号：US11054927

申请日：2005-02-10

Applicant: Thomas Joe Hamilton

Inventor： Thomas Joe Hamilton

IPC: G01J1/32

CPC classification number: A61F9/061 ,  G01J1/04 ,  G01J1/0418 ,  G01J1/26 ,  G01J1/32 ,  G01J1/46 ,  G01J2001/0276

Abstract: An auto darkening eye protection device including a shutter assembly, a light sensing circuit, a control circuit and a power supply 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。

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。