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    • 7. 发明授权
    • Infra-red laser shield
    • 红外线激光盾
    • US4802719A
    • 1989-02-07
    • US758515
    • 1985-07-24
    • Jose MagarinosDaniel Coleman
    • Jose MagarinosDaniel Coleman
    • G03H1/02A61F9/02G02B5/32G03H1/04G02C7/10
    • A61F9/022G02B5/32G03H2001/043Y10S359/90
    • A method of making a holographic optical element is disclosed. The method comprises the steps of determining the separation between interference pattern planes tangent to surfaces separated by a desired distance which achieves desired optical properties at a given first wavelength and angular orientation of light in a hologram disposed on a curved surface of first shape corresponding to the shape of a curved holographic element. The angular characteristics of exposure to achieve of this separation of planes in a planar analog of the desired curved holographic element is determined. The angles of exposure of interfering light rays to achieve this separation of planes in the planar analog by exposure of a sensitive substantially planar surface at a second wavelength in order to achieve the desired separation of planes and angular characteristics are determined. A source is constructed having the desired angular exposure characteristics and having a wavelength equal to the second wavelength, the source being constructed using a pair of source sets which are activated in sequence to make the desired interference pattern while shading parts of the substrate. An interference pattern is recorded in a photosensitive substantially planar film disposed on a substantially planar substrate using the constructed source. The interference pattern is developed. The developed interference pattern acts as a transmission hologram. The sensitive film with the interference pattern recorded in it is removed from the substantially planar substrate, the developing being done before removal of the sensitive layer in order that the removal may be carried out in a lighted area. The removed sensitive layer is the adhered to a substrate having the first shape, the removed layer being stretched and bent for adhesion to the substrate.
    • 公开了制造全息光学元件的方法。 该方法包括以下步骤:确定在与给定第一波长分开的期望光学特性相隔的表面相切的干涉图案平面之间的间隔,以及设置在对应于第一波形的第一形状的曲面上的全息图中的光的角取向 弯曲全息元件的形状。 确定在期望的弯曲全息元件的平面模拟中实现平面分离的曝光的角度特性。 确定干涉光线的曝光角度,以通过曝光第二波长的敏感基本上平坦的表面以实现平面和角度特性所需的分离来实现平面模拟中的平面的这种分离。 源构造具有期望的角度曝光特性并且具有等于第二波长的波长,该源使用一对源组来构造,这些源组被依次激活以在衬底的一部分被遮蔽的同时形成所需的干涉图案。 使用所构造的源将干涉图案记录在设置在基本平坦的基板上的光敏基本上平坦的膜中。 开发了干涉图案。 所形成的干涉图案用作透射全息图。 记录在其中的干涉图案的敏感膜从基本上平面的基板上去除,在移除敏感层之前进行显影,以便可以在点亮的区域中进行去除。 去除的敏感层粘附到具有第一形状的基底上,被去除的层被拉伸并弯曲以粘附到基底。