公开(公告)号：US5751258A

公开(公告)日：1998-05-12

申请号：US707269

申请日：1996-09-04

Applicant: Jeffrey K. Fergason ,  John D. Fergason

Inventor： Jeffrey K. Fergason ,  John D. Fergason

IPC: A61F9/06 ,  G01J1/02 ,  G01J1/26 ,  G01J1/44 ,  G02F1/133

CPC classification number: G01J1/02 ,  A61F9/067 ,  G01J1/26 ,  G01J1/44 ,  G02F1/13306 ,  G01J2001/0276

Abstract: A power supply circuit for a liquid crystal welding lens or shutter provides a consistent and stable regulated power signal for driving or powering the liquid crystal shutter for maintaining stable performance over the life of the power supply and a battery level indicator feature to provide advance warning of degraded device performance.

Abstract translation: 用于液晶焊接透镜或快门的电源电路提供一致且稳定的调节功率信号，用于驱动或供电液晶快门，以在电源的使用寿命内保持稳定的性能和电池电量指示器特征，以提供预警 设备性能下降。

公开(公告)号：US5519522A

公开(公告)日：1996-05-21

申请号：US105734

申请日：1993-08-11

Applicant: Jeffrey K. Fergason

Inventor： Jeffrey K. Fergason

IPC: A61F9/06 ,  B23K9/32 ,  G02F1/133

CPC classification number: B23K9/32 ,  A61F9/067

Abstract: A welding helmet including an optical protective lens including one or more liquid crystal cells as a variable optical transmission device responsive to a prescribed input to vary light transmission and light blocking characteristics thereof, and a hot mirror band pass filter having a relatively wide transmission characteristic in the visible spectrum and filtering characteristics in the infrared spectrum, the variable optical transmission device being tuned to provide a warning to indicate a nonoperating condition; and the variable optical transmission device being operative in a drive to dark mode for fast operation. Also disclosed is a method for protecting the eyes of a welder while providing a bright clear state, a fast switching to dark state, and the providing of an indication of a power off or failure state.

Abstract translation: 一种焊接头盔，包括一个包含一个或多个液晶单元的光学保护透镜作为响应于规定输入的可变光传输装置以改变其透光和阻光特性，以及具有相对较宽传输特性的热镜带通滤波器 红外光谱中的可见光谱和滤波特性，可变光传输装置被调谐以提供指示非操作条件的警告; 并且可变光传输装置在驱动暗模式下操作以进行快速操作。 还公开了一种用于在提供明亮的清晰状态，快速切换到暗状态以及提供断电或故障状态的指示的同时保护焊工的眼睛的方法。

公开(公告)号：US5377032A

公开(公告)日：1994-12-27

申请号：US13966

申请日：1993-02-05

Applicant: Jeffrey K. Fergason ,  John D. Fergason

Inventor： Jeffrey K. Fergason ,  John D. Fergason

IPC: A61F9/06 ,  B23K9/32

CPC classification number: A61F9/067

Abstract: A frame assembly for a light shutter including a frame structure for enclosing an electro-optic shutter assembly, the frame structure having a front surface which can be positioned opposite a cover lens, and a switch for controlling an operation mode of the electro-optic shutter assembly, the switch being mounted on the front surface whereby pressure applied to the cover lens activates the switch. The frame assembly can be inserted and used in a welding helmet or other protective eyewear having a standard sized lens aperture.

Abstract translation: 一种用于光闸的框架组件，其包括用于封闭电光快门组件的框架结构，所述框架结构具有可以与盖透镜相对定位的前表面，以及用于控制电光闸的操作模式的开关 组件，开关安装在前表面上，由此施加到盖透镜的压力激活开关。 框架组件可以插入并用于具有标准尺寸的透镜孔的焊接头盔或其他保护眼镜。

公开(公告)号：US5252817A

公开(公告)日：1993-10-12

申请号：US674850

申请日：1991-03-25

Applicant: John D. Fergason ,  Jeffrey K. Fergason

Inventor： John D. Fergason ,  Jeffrey K. Fergason

IPC: A61F2/14 ,  A61F9/06 ,  G01J1/02 ,  G01J1/04 ,  G01J1/18 ,  G01J1/44 ,  G02F1/13 ,  G02F1/133 ,  G09G3/18 ,  G01J1/32

CPC classification number: G01J1/18 ,  A61F9/067 ,  G01J1/04 ,  G01J1/044 ,  G01J1/44 ,  G02F1/13306 ,  G02F1/13318 ,  G01J2001/0276

Abstract: A power supply circuit for a liquid crystal welding lens or shutter develops a relatively low voltage AC signal for driving or powering the liquid crystal shutter to the clear state and two relatively higher or larger magnitude AC electrical signals for initially driving the shutter to the dark state and then for maintaining the shutter in the dark state; a variable frequency circuit for varying the frequency of the driving signal to the shutter to minimize power usage in the dark state and to avoid flicker in the clear state; and power saving and battery level indicator features are included.

Abstract translation: 用于液晶焊接透镜或快门的电源电路产生相对低电压的AC信号，用于驱动或供电液晶快门到清除状态，以及两个相对较高或较大幅度的AC电信号，用于初始将快门驱动到暗态 然后用于将快门保持在黑暗状态; 变频电路，用于将驱动信号的频率改变为快门以最小化黑暗状态下的功率使用，并避免在清除状态下闪烁; 并且包括省电和电池电量指示器功能。

公开(公告)号：US5857215A

公开(公告)日：1999-01-12

申请号：US599733

申请日：1996-02-12

Applicant: Jeffrey K. Fergason ,  John D. Fergason

Inventor： Jeffrey K. Fergason ,  John D. Fergason

IPC: A61F9/06 ,  B29C65/70 ,  A42B3/00

CPC classification number: A61F9/061 ,  A61F9/06 ,  A61F9/067 ,  B29C65/70 ,  B29C66/7212 ,  B29C66/7392 ,  B29C66/7394 ,  B29C66/71 ,  B29C66/73751 ,  B29C66/73941

Abstract: A welding helmet having high structual integrity is formed of a single sheet of composite material, such as Kevlar fabric impregnated with a phenolic thermoset resin; a viewing port in the front of the helmet includes a welding lens is either of fixed or automatically darkening type; and curves, bends, folds and steps in the composite material and trim pieces in the viewing port area and about the peripheral rim of the helmet shell provide additional stiffening for the helmet. A method of making a welding helmet of a single sheet of composite material includes pre-forming the composite material to a shape similar to that of the finished molding helmet shape, and placing the pre-shaped composite material in a compression mold and closing the mold to mold the composite material to shape while curing the composite material by applying heat other otherwise assisting in the curing of the composite material; and mounting a welding lens in a viewing port of the welding helmet.

Abstract translation: 具有高结构完整性的焊接头盔由单层复合材料形成，例如用酚醛热固树脂浸渍的凯夫拉织物; 头盔前部的观察口包括固定或自动变暗型的焊接镜片; 并且复合材料中的曲线，弯曲，折叠和台阶以及观察端口区域和围绕头盔壳体的外围边缘的修剪件为头盔提供额外的加固。 制造复合材料单面焊接头盔的方法包括将复合材料预成型为与成品成型头盔形状类似的形状，并将预成形复合材料放置在压模中并封闭模具 通过施加另外辅助复合材料的固化的热而使复合材料模制成形，同时固化复合材料; 并将焊接镜头安装在焊接头盔的观察口中。

公开(公告)号：USD353692S

公开(公告)日：1994-12-20

申请号：US8943

申请日：1993-06-01

Applicant: John D. Fergason ,  Jeffrey K. Fergason

Designer： John D. Fergason ,  Jeffrey K. Fergason

公开(公告)号：US5749096A

公开(公告)日：1998-05-12

申请号：US270633

申请日：1994-07-01

Applicant: Jeffrey K. Fergason ,  David Fry ,  Stephen M. Brunnell

Inventor： Jeffrey K. Fergason ,  David Fry ,  Stephen M. Brunnell

IPC: A61F9/06 ,  B29C65/70 ,  A42B3/00

CPC classification number: B29C65/70 ,  A61F9/06 ,  A61F9/061 ,  A61F9/067 ,  B29C66/71 ,  B29C66/7212 ,  B29C66/7394

Abstract: A structure formed of a composite material and a support material, the support material being integrally coupled to the composite material by an insert molding process to form an integral structure, and protective head gear, such as a welding helmet, welding shield, hard hat, etc. using such structure. A method for making a structure using sheet-like composite material includes adhering to the composite material a relatively rigid support member or frame by insert molding directly to the composite material.

Abstract translation: 由复合材料和支撑材料形成的结构，所述支撑材料通过嵌件模制工艺整体地联接到所述复合材料以形成整体结构，以及保护性头盔，例如焊接头盔，焊接护罩，硬帽， 使用这种结构。 使用片状复合材料制造结构的方法包括通过直接将复合材料嵌入成型将复合材料粘附到相对刚性的支撑构件或框架上。

公开(公告)号：US5074647A

公开(公告)日：1991-12-24

申请号：US447297

申请日：1989-12-07

Applicant: Jeffrey K. Fergason ,  John D. Fergason

Inventor： Jeffrey K. Fergason ,  John D. Fergason

IPC: A61F9/06

CPC classification number: A61F9/067

Abstract: A light control device includes a light shutter having a pair of polarizers and a liquid crystal device operative in response to a prescribed input to control transmission of light therethrough, and a variable polarizer optically aligned with respect to said light shutter and operative to control light transmitted therethrough in response to a prescribed input; the light shutter is operative relatively fast in response to application of electric field to reduce light transmission and the variable polarizer is operative in the event of a power loss, which would cause the light shutter to stop light blocking, to provide a safety light blocking function. The light control device may be employed in a welding helmet or other device intended to provide protection to the eyes of an individual or other animate or inanimate object from selected electromagnetic energy, such as that produced by welding or other source.

Abstract translation: 一种光控制装置，包括具有一对偏振器的光闸和响应于规定的输入以控制透光的透镜而工作的液晶装置，以及可变偏振器，其相对于所述光闸光学对准，并且可操作以控制透射的光 响应于规定的输入; 响应于电场的施加，光快门相对快速地操作以减少光透射，并且可变偏振器在功率损失的情况下操作，这将导致光快门停止光阻挡，以提供安全光阻挡功能 。 光控制装置可以用于焊接头盔或其它设备，其旨在为选择的电磁能（例如由焊接或其他源产生的）提供对个人或其他动画或无生命物体的眼睛的保护。

公开(公告)号：US06554428B2

公开(公告)日：2003-04-29

申请号：US09948257

申请日：2001-09-07

Applicant: Jeffrey K. Fergason ,  John D. Fergason

Inventor： Jeffrey K. Fergason ,  John D. Fergason

IPC: A61B310

CPC classification number: G02B27/0172

Abstract: A head-mounted display or other optical device which provides at least a first image to at least one eye of a user can be adjusted for changing the alignment of an image path with respect to a user's eye position. An alignment beam generator is mounted so as to move with the image path device so a user can use characteristics of the alignment beam to achieve a desired alignment of the image path. Preferably, the alignment beam is configured, such as by making it substantially narrow-beam, linear and/or non-dispersive, such that beam is substantially invisible to the user until it is within a preferred alignment range, so as to provide a binary or visible/invisible, indicator of alignment.

公开(公告)号：US5515186A

公开(公告)日：1996-05-07

申请号：US89265

申请日：1993-07-09

Applicant: Jeffrey K. Fergason ,  Arthur L. Berman ,  James L. Fergason ,  John D. Fergason

Inventor： Jeffrey K. Fergason ,  Arthur L. Berman ,  James L. Fergason ,  John D. Fergason

IPC: A61F9/06 ,  G02B27/28 ,  G02F1/1335 ,  G02F1/1347

CPC classification number: A61F9/062 ,  G02B27/28 ,  G02F1/13471 ,  G02F2001/133531

Abstract: A welding helmet and lens therefor includes a shield and a lens including a two identical optical components, each including a polarizer, a further polarizer (analyzer) optically between said optical components and effectively shared as an output device from one optical component and an input device for the other optical component, the transmissive axes of respective polarizers of said optical components being operatively oriented relative to one another to improve extinction of light incident on said lens at prescribed angles. The lens may be used in other optical systems. A method of making a light transmission controlling optical system employing two optical components control device, includes assembling a plurality of identical optical components, each having substantially identical alignment characteristics, positioning at least two of the optical components in optical series such that at least one optical component is facing in a direction opposite the facing direction of the other optical component, whereby the polar alignment of at least one part of both of said optical components is equi-angular and opposite sense relative to a reference direction.

Abstract translation: 一种焊接头盔及其透镜包括屏蔽和透镜，其包括两个相同的光学部件，每个光学部件包括偏振器，在所述光学部件之间光学地进一步偏振器（分析器），并且作为输出装置从一个光学部件和输入装置 对于另一个光学部件，所述光学部件的各个偏振器的透射轴相对于彼此可操作地取向，以改善以规定角度入射在所述透镜上的光的消光。 透镜可用于其他光学系统。 制造采用两个光学部件控制装置的光传输控制光学系统的方法包括组装多个相同的光学部件，每个光学部件具有基本相同的对准特性，将至少两个光学部件定位成光学系列，使得至少一个光学 分量面向与另一光学部件的相对方向相反的方向，由此两个所述光学部件的至少一部分的极性对准相对于参考方向具有等角度和相反的方向。