Grating trim retarders
    1.
    发明申请
    Grating trim retarders 有权
    光栅减速器

    公开(公告)号:US20070070276A1

    公开(公告)日:2007-03-29

    申请号:US11591623

    申请日:2006-11-01

    IPC分类号: G02F1/1335

    摘要: A grating trim retarder fabricated from a form-birefringent multi-layer dielectric stack including at least one anti-reflection coating and supported on a transparent substrate is provided. The form-birefringent dielectric stack includes an axially-inhomogeneous element in the form of a −C-plate grating and a transversely-inhomogeneous element in the form of an A-plate grating. Each of the −C-plate and the A-plate gratings are fabricated with dimensions to form a zeroth order sub-wavelength grating structure. Fabricating the grating trim retarder with anti-reflection coatings and/or a segment where the −C-plate and A-plate grating overlap enables the in-plane and out-of-plane retardances to be tailored independently according to the desired application.

    摘要翻译: 提供了由包括至少一个抗反射涂层并且支撑在透明基板上的双折射多层电介质叠层制造的光栅修整延迟器。 形式双折射介质堆叠包括呈-C板格栅形式的轴向不均匀元件和A板格栅形式的横向不均匀的元件。 -C板和A板光栅中的每一个被制造成具有尺寸以形成零级亚波长光栅结构。 制造具有抗反射涂层和/或-C板和A板光栅重叠的光栅调整缓速器可以根据所需的应用独立地调整平面内和平面外的延迟。

    Narrow bandpass filter assemblies for solar telescopes
    2.
    发明申请
    Narrow bandpass filter assemblies for solar telescopes 有权
    用于太阳望远镜的窄带通滤波器组件

    公开(公告)号:US20070253063A1

    公开(公告)日:2007-11-01

    申请号:US11415257

    申请日:2006-04-29

    申请人: Curtis Hruska

    发明人: Curtis Hruska

    IPC分类号: G02B5/28

    CPC分类号: G02B5/284

    摘要: The invention relates to the combination of lower transmittance etalons with higher transmittance filters, including use of a single circular polarizer with high efficiency and optical performance for its filtered polarization, to achieve necessary throughput of a narrow bandpass region. The lower transmittance etalons can be achieved by using lower transmittance solid-state etalon materials, or by control of the coatings on the etalon. Alternate configurations are described that reduce the optical assembly's footprint, and/or include additional filters to remove stray light. An innovative option to heat the etalon directly is disclosed to actively stabilize and maintain the etalon's bandpass.

    摘要翻译: 本发明涉及低透射率标准具与较高透光率滤光片的组合,包括使用具有高效率的单一圆偏振器和其滤光极化的光学性能,以实现窄带通区域的必要吞吐量。 较低的透光率标准具可以通过使用较低透光率的固态标准具材料或通过控制标准具上的涂层来实现。 描述了减少光学组件的占地面积的替代配置,和/或包括用于去除杂散光的附加过滤器。 披露了直接加热标准机的创新选择,以积极稳定和维护标准具的带通。

    Plasma display panel with infrared absorbing coating
    3.
    发明授权
    Plasma display panel with infrared absorbing coating 失效
    带红外吸收涂层的等离子显示面板

    公开(公告)号:US5811923A

    公开(公告)日:1998-09-22

    申请号:US774058

    申请日:1996-12-23

    摘要: The present invention is directed to methods and apparatus for enhancing the performance of visual display units which utilize plasma display panels. More specifically, the present invention provides methods and apparatus for providing an optically enhancing/noise suppressing device for positioning in front of the viewing surface of a plasma display panel. The device also increases the impact resistance of the PDP. The device of the present invention is manufactured separately from the PDP. The device may be provided with attachment means for securing the device to the surface of the visual display unit in a position in front of the viewing surface of the PDP or may be designed to be free-hanging, i.e., suspended, or otherwise positioned in front of the viewing surface of the PDP. In its most basic embodiment, the device of the present invention comprises multiple layers of different materials including at least one plastic substrate layer for impact resistance, an optically selective coating providing high photopic transmittance, continuous high electrical conductivity for RFI shielding, and reflectivity specifically within the near-IR region, and an IR absorbing coating for absorbing IR energy emissions. In a preferred embodiment, the IR absorbing coating constitutes a dye material which is preferably selected to also be color-correcting with respect to the particular PDP.

    摘要翻译: 本发明涉及用于增强使用等离子体显示面板的视觉显示单元的性能的方法和装置。 更具体地,本发明提供了用于提供用于在等离子体显示面板的观察表面前方定位的光学增强/噪声抑制装置的方法和装置。 该装置还增加了PDP的耐冲击性。 本发明的装置与PDP分开制造。 该装置可以设置有附接装置,用于将装置固定在可视显示单元的表面上,位于PDP的观察表面前方的一个位置,或者可以被设计成自由悬挂,即悬挂或以其它方式定位在 PDP的观察面前方。 在其最基本的实施例中,本发明的装置包括多层不同的材料,包括至少一个用于抗冲击的塑料基底层,提供高的透光率的光学选择性涂层,用于RFI屏蔽的连续高电导率, 近红外区域和用于吸收IR能量排放的IR吸收涂层。 在优选的实施方案中,IR吸收涂层构成染料材料,其优选地被选择为也可以相对于特定PDP进行颜色校正。

    Automated verification systems and method for use with optical interference devices
    4.
    发明申请
    Automated verification systems and method for use with optical interference devices 有权
    自动验证系统和光学干扰设备使用的方法

    公开(公告)号:US20050217969A1

    公开(公告)日:2005-10-06

    申请号:US11140839

    申请日:2005-05-31

    摘要: An automated verification system for authenticating an object having an optical security feature includes an optical system, a transport staging apparatus, and an analyzing device. The optical system includes one or more light sources that are capable of generating either narrowband or broadband light beams. The transport staging apparatus cooperates with the light sources and is configured to position the object such that one or more of the light beams strike a portion of the object where the security feature should be located. The analyzing device receives the light beams reflected or transmitted from the object and is adapted to analyze the optical characteristics of the light beams at varying angles and/or wavelengths to verify the authenticity of the object.

    摘要翻译: 用于认证具有光学安全特征的对象的自动验证系统包括光学系统,传输分段设备和分析设备。 光学系统包括能够产生窄带或宽带光束的一个或多个光源。 运输分段设备与光源配合,并且被配置成定位物体,使得一个或多个光束照射安全特征应位于物体的一部分。 分析装置接收从物体反射或透射的光束,并且适于以变化的角度和/或波长分析光束的光学特性以验证物体的真实性。

    Polarization conversion light integrator
    5.
    发明申请
    Polarization conversion light integrator 审中-公开
    极化转换光积分器

    公开(公告)号:US20050174641A1

    公开(公告)日:2005-08-11

    申请号:US11098235

    申请日:2005-04-04

    摘要: A polarizing conversion system uses a polarizing beam splitter and reflector with a polarization conversion element to convert light from a lamp to a selected polarization state before providing the light to a light integrator, such as a light pipe or light tunnel. The light integrator provides homogenized polarized light to a light modulator. The polarization conversion system avoids increases efficiency compared to absorptive or simple reflective polarizers with fewer components than polarization conversion systems using patterned retarder plates and lenslet arrays. In one embodiment, the conversion elements are held to avoid adhesive or other bonds in the optical path. In other embodiments, high-temperature optical adhesive or optical contact bonding is used to assemble optical components for high-temperature operation. In a particular embodiment, a single-crystal quartz retarder plate is thermally matched to glass components in the polarization conversion system.

    摘要翻译: 偏振转换系统使用偏振分束器和具有偏振转换元件的反射器,以在将光提供给诸如光管或光通道的光积分器之前将来自灯的光转换为选定的偏振状态。 光积分器向光调制器提供均匀的偏振光。 与使用图案化延迟板和透镜阵列的偏光转换系统相比,具有较少成分的吸收性或简单的反射偏振器相比,偏振转换系统避免提高效率。 在一个实施例中,保持转换元件以避免光路中的粘合剂或其它粘合。 在其他实施例中,使用高温光学粘合剂或光学接触粘合来组装用于高温操作的光学部件。 在特定实施例中,单晶石英延迟板与偏振转换系统中的玻璃部件热匹配。