Lens systems for projection televisions

    公开(公告)号:US07019793B2

    公开(公告)日:2006-03-28

    申请号:US10910186

    申请日:2004-08-03

    Abstract: Projection lens systems for use with cathode ray tube (CRT) projection televisions are provided which have positive first lens units (U1) and negative second lens units (U2) where the negative second lens units are customized in terms of at least one optical property for at least two of the colors of light produced by the CRTs with which the units are used. The at least one optical property is not spectral transmission, although the second lens units can also be customized for spectral transmission. As illustrated in FIGS. 1B–1F and FIGS. 8B–8F, such customization of a non-transmissive property provides an effective and cost effective approach for improving the color performance of CRT projection lens systems. Constructions for the positive first lens unit which improve image contrast and reduce manufacturing costs are also provided.

    Lens systems for projection televisions

    公开(公告)号:US07133084B2

    公开(公告)日:2006-11-07

    申请号:US11315725

    申请日:2005-12-22

    Abstract: Projection lens systems for use with cathode ray tube (CRT) projection televisions are provided which have positive first lens units (U1) and negative second lens units (U2) where the negative second lens units are customized in terms of at least one optical property for at least two of the colors of light produced by the CRTs with which the units are used. The at least one optical property is not spectral transmission, although the second lens units can also be customized for spectral transmission. As illustrated in FIGS. 1B–1F and FIGS. 8B–8F, such customization of a non-transmissive property provides an effective and cost effective approach for improving the color performance of CRT projection lens systems. Constructions for the positive first lens unit which improve image contrast and reduce manufacturing costs are also provided.

    Lens assembly with integrated focus mount and CRT coupler
    3.
    发明授权
    Lens assembly with integrated focus mount and CRT coupler 失效
    具有集成焦点安装和CRT耦合器的镜头组件

    公开(公告)号:US06922295B2

    公开(公告)日:2005-07-26

    申请号:US10665950

    申请日:2003-09-19

    CPC classification number: G02B13/16 H04N9/3141

    Abstract: A lens assembly adapted to be connected to a CRT and affixed to mounting structure in a projection television cabinet. The lens assembly includes a tubular lens mount having a longitudinal axis and at least a first optical lens element mounted along the longitudinal axis. A tubular focus mount extends along the longitudinal axis and fastening and locking structure connects the lens mount to the focus mount after a focus mount position is obtained. A CRT coupler is formed integrally with the focus mount and includes structure for securing a CRT and for securing the coupler to the mounting structure within the television cabinet. A second optical lens element is mounted to the CRT coupler. A flexible bladder may be used to contain coolant fluid between the CRT and the coupler.

    Abstract translation: 一种适于连接到CRT并固定在投影电视机柜中的安装结构的透镜组件。 透镜组件包括具有纵向轴线的至少一个第一光学透镜元件的纵向轴线安装的管状透镜座。 管状聚焦装置沿着纵向轴线延伸,并且紧固和锁定结构在获得聚焦安装位置之后将透镜支架连接到聚焦装置。 CRT耦合器与聚焦架一体地形成,并且包括用于固定CRT并且用于将耦合器固定到电视机柜内的安装结构的结构。 第二光学透镜元件安装到CRT耦合器。 可以使用柔性气囊来容纳CRT和耦合器之间的冷却剂流体。

    Lens systems for projection televisions
    5.
    发明授权
    Lens systems for projection televisions 失效
    投影电视镜头系统

    公开(公告)号:US06791629B2

    公开(公告)日:2004-09-14

    申请号:US09811732

    申请日:2001-03-19

    Abstract: Projection lens systems for use with cathode ray tube (CRT) projection televisions are provided which have positive first lens units (U1) and negative second lens units (U2) where the negative second lens units are customized in terms of at least one optical property for at least two of the colors of light produced by the CRTs with which the units are used. The at least one optical property is not spectral transmission, although the second lens units can also be customized for spectral transmission. As illustrated in FIGS. 1B-1F and FIGS. 8B-8F, such customization of a non-transmissive property provides an effective and cost effective approach for improving the color performance of CRT projection lens systems. Constructions for the positive first lens unit which improve image contrast and reduce manufacturing costs are also provided.

    Abstract translation: 提供了用于阴极射线管(CRT)投影电视机的投影透镜系统,其具有正的第一透镜单元(U1)和负的第二透镜单元(U2),其中负的第二透镜单元根据至少一个光学性质被定制 由使用该单元的CRT产生的至少两种颜色的光。 至少一个光学特性不是光谱传输,尽管第二透镜单元也可以被定制用于光谱传输。 如图1和2所示。 1B-1F, 如图8B-8F所示,非透射性质的定制为CRT投影透镜系统的彩色性能提供了一种有效和经济有效的方法。 还提供了改善图像对比度并降低制造成本的正面第一透镜单元的结构。

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