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    • 8. 发明授权
    • Optical collimating apparatus
    • 光学准直仪
    • US4859031A
    • 1989-08-22
    • US80739
    • 1987-08-03
    • Arthur L. BermanJames E. Melzer
    • Arthur L. BermanJames E. Melzer
    • B64F5/00G02B5/30G02B27/00G02B27/01G09B9/02G09B9/05G09B9/06G09B9/32
    • G02B27/0101G02B5/3016G09B9/326G02B2027/0118G02B5/30
    • An optical collimating apparatus employs a semi-reflective concave mirror and cholesteric liquid crystal element. In one embodiment, the optical collimating apparatus is used as a heads-up display device. Images in the line of sight of an observer substantially pass through a transmitter/combiner, semi-reflective concave mirror, and cholesteric liquid crystal element to an observer. Images generated by an image source are focussed on the transmitter/combiner such that the transmitter/combiner reflects the images into the line of sight of the observer. The generated images are transmitted by the primarily transmissive (convex) side of the semi-reflective concave mirror to the cholesteric liquid crystal element. The cholesteric liquid crystal element reflects the generated images back toward the primarily reflective (concave) side of the semi-refective concave mirror, which in turn reflects the images back toward the cholesteric liquid crystal element, which transmits the generated images to the observer. In an alternative embodiment, such as in a flight simulator or similar device, an image source projects images upon the primarily transmissive (convex) side of a semi-reflective concave mirror which transmits the images to a cholesteric liquid crystal element. The images are reflected by the cholesteric liquid crystal element back toward the primarily reflective (concave) side of the semi-reflective concave mirror. The images are then reflected by the semi-reflective concave mirror back toward the cholesteric liquid crystal element which transmits the images to the observer.
    • 9. 发明授权
    • Active matrix liquid crystal having a counterelectrode substrate
extended and connected to an external circuit
    • 具有扩展并连接到外部电路的反电极基板的有源矩阵液晶
    • US5519524A
    • 1996-05-21
    • US275907
    • 1994-07-05
    • James L. FergasonArthur L. Berman
    • James L. FergasonArthur L. Berman
    • G02F1/13G02F1/1339G02F1/1345G02F1/136
    • G02F1/1345G02F1/1339G02F1/13452G02F1/136
    • A miniature image source includes a plurality of substrates, one formed of semiconductor material having an active matrix array and being relatively rough and the other being relatively smooth, a sealed space between the substrates containing liquid crystal material, electrically conductive members or terminal pads of the rough substrate being electrically and mechanically connected to electrically conductive members on the smooth substrate and are brought externally of the sealed space for exposure on the smooth substrate for external electrical connection. A method for making a miniature image source includes mechanically and electrically connecting electrical members of respective substrates using electrical material, sealing a space between the substrates for containing liquid crystal material using seal material, and elevating the temperature of the respective materials to activate first said electrical material and subsequently said seal material.
    • 微型图像源包括多个基板,一个由具有有源矩阵阵列并且相对粗糙并且另一个相对平滑的半导体材料形成的基板,在包含液晶材料的基板,导电构件或端子板之间的密封空间 粗糙基板电气地和机械地连接到平滑基板上的导电构件,并且被带到密封空间的外部,用于暴露在平滑基板上用于外部电连接。 一种制造微型图像源的方法包括使用电气材料机械地和电气地连接各个基板的电气部件,利用密封材料密封用于容纳液晶材料的基板之间的空间,以及升高各个材料的温度以使第一个所述电 材料和随后所述的密封材料。
    • 10. 发明授权
    • Eye protection device for welding helmets which reduces obliquely
incident light
    • 用于焊接头盔的眼睛保护装置,其减少倾斜的入射光
    • US5515186A
    • 1996-05-07
    • US89265
    • 1993-07-09
    • Jeffrey K. FergasonArthur L. BermanJames L. FergasonJohn D. Fergason
    • Jeffrey K. FergasonArthur L. BermanJames L. FergasonJohn D. Fergason
    • A61F9/06G02B27/28G02F1/1335G02F1/1347
    • A61F9/062G02B27/28G02F1/13471G02F2001/133531
    • 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.
    • 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。