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    • 10. 发明申请
    • PHOTOTHERMOGRAPHIC AND PHOTOGRAPHIC ELEMENTS HAVING A TRANSPARENT SUPPORT HAVING ANTIHALATION PROPERTIES AND PROPERTIES FOR REDUCING WOODGRAIN
    • 具有抗反射特性和降低木材性能的透明支持的照相机和摄影元件
    • WO02021208A1
    • 2002-03-14
    • PCT/US2001/027557
    • 2001-09-06
    • G03C1/498G03C1/815G03C1/825G03C1/795
    • G03C1/49872G03C1/815G03C1/825
    • A photosensitive element (5) includes a layer of a photosensitive material (10) on a transparent, multilayer, polymeric support (20, 22) having numerous alternating layers of two different polymeric materials. A polymeric multilayer reflector (22) reflects at least 50% of actinic radiation in the range of wavelengths to which the photosensitive material (10) is sensitive. If the polymeric multilayer reflector (22) includes numerous, thin, alternating layers located at the surface of the polymeric support (20, 22) closest to the photosensitive material (42), the element not only provides increased speed but also provides an antihalation effect. In another aspect, a multilayer reflector (22) is located a distance removed from the photosensitive layer (10) sufficient to reduce any woodgrain that would otherwise occur, while increasing speed.
    • 感光元件(5)包括在具有两个不同聚合物材料的多个交替层的透明多层聚合物支撑体(20,22)上的感光材料层(10)。 聚合多层反射器(22)反射感光材料(10)敏感的波长范围内的至少50%的光化辐射。 如果聚合物多层反射器(22)包括位于最靠近感光材料(42)的聚合物支撑件(20,22)的表面处的多个薄的交替层,则该元件不仅提供增加的速度,而且还提供防旋光效应 。 在另一方面,多层反射器(22)位于与感光层(10)相距一定距离处,足以减少否则会发生的任何木纹,同时增加速度。