Rear projection screens and light filters with conformable coatings and methods of making the same
    31.
    发明授权
    Rear projection screens and light filters with conformable coatings and methods of making the same 失效
    背投屏幕和具有适形涂层的光过滤器及其制造方法

    公开(公告)号:US06600599B2

    公开(公告)日:2003-07-29

    申请号:US09329040

    申请日:1999-06-09

    Abstract: This invention relates to a light transmitting filter comprising (a) light absorbing layer having a first and second surface, (b) microspheres embedded in the light absorbing layer and (c) an optically clear, substantially uniform, conformable layer covering the microspheres, wherein the microspheres provide light tunnels through the light absorbing layer. The invention also relates to methods of making the same. The invention also relates to a method of preparing a light transmitting filter comprising the step of laminating a clear substantially uniform conformable layer over transparent microspheres embedded in a light absorbing layer wherein the transparent bead form light tunnels through the light absorbing layer. The light transmitting filters of the present invention have improved light throughput and improved angularity.

    Abstract translation: 本发明涉及一种透光滤光片,包括:(a)具有第一和第二表面的光吸收层,(b)嵌入光吸收层中的微球,和(c)覆盖微球的光学透明,基本均匀的适形层,其中 微球提供通过光吸收层的光通道。 本发明还涉及制备该方法的方法。 本发明还涉及一种制备透光过滤器的方法,该方法包括以下步骤:将透明的基本均匀的适形层层压在包含在光吸收层中的透明微球上,其中透明珠形成通过光吸收层的光通道。 本发明的透光滤光片具有改进的光通量和改善的角度。

    Retroreflective sheeting containing a validation image and methods of making the same
    34.
    发明授权
    Retroreflective sheeting containing a validation image and methods of making the same 有权
    包含验证图像的反光片及其制作方法

    公开(公告)号:US06350036B1

    公开(公告)日:2002-02-26

    申请号:US09431558

    申请日:1999-10-29

    CPC classification number: G02B5/128 Y10S359/90 Y10T428/25 Y10T428/31638

    Abstract: This invention relates to retroreflective sheeting which has an image, such as an image. More specifically, the image has varying appearance at different angles of view. The retroreflective sheeting has a layer of transparent microsphere lenses, a transparent polymeric spacing layer underlying, contacting, and conforming to the bottom of the lenses, the spacing and conformation of which is critical to the optimal performance of the retroreflective article, a reflective layer having a top surface in contact with the back surface of the spacing layer and a topcoat and/or cover sheet overlying and conforming to the top surfaces of the lenses and having a flat top surface or face. In another embodiment, the retroreflective sheeting includes a pressure sensitive adhesive underlying and in contact with the reflective layer. The retroreflective sheeting has an image whose proportions are determined by a nonconformity of the reflective and spacing layer to the bottom of the lenses. The image of the present invention can range from conspicuous to inconspicuous and directional to non-directional.

    Abstract translation: 本发明涉及具有诸如图像的图像的逆反射片材。 更具体地,图像在不同的视角具有不同的外观。 逆反射片材具有一层透明的微球透镜,一个透明的聚合物间隔层,位于下面,接触并符合透镜底部,其间距和构象对回射制品的最佳性能至关重要,反射层具有 与间隔层的后表面接触的顶表面和覆盖并符合透镜的顶表面并且具有平坦的顶表面或面的顶涂层和/或覆盖片。 在另一个实施例中,回射片材包括位于反射层下面并与反射层接触的压敏粘合剂。 逆反射片材具有比例由反射层和间隔层与透镜底部的不整合度决定的图像。 本发明的图像可以从显眼到不显眼,无方向性。

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