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    • 2. 发明申请
    • ORGANIC OPTICAL COMPONENTS AND PREPARATION THEREOF
    • 有机光学元件及其制备
    • WO1995009726A1
    • 1995-04-13
    • PCT/GB1994002118
    • 1994-09-29
    • IMPERIAL CHEMICAL INDUSTRIES PLCSUMMERSGILL, PhilipHARVEY, Thomas, GriersonRYAN, Timothy, GeorgeCARTER, NeilTHORNE, Andrew, John
    • IMPERIAL CHEMICAL INDUSTRIES PLC
    • B29D11/00
    • B32B7/02B29C43/28B29D11/0073B29K2105/24B32B27/08B32B37/1284B32B2038/0076B32B2307/418B32B2551/00
    • A polymeric structure for use in the preparation of an organic optical component which polymeric structure comprises (a) a first layer (2) of an optically transmissive first polymer having a first refractive index, the first layer having a surface in which is defined at least one retaining feature (3); (b) an optically transmissive second polymer retained within the at least one retaining feature, the second polymer having a second refractive index which is greater than the first refractive index; and (c) an overlay of the second polymer having a maximum thickness of less than 1.5 mu m over the surface of the first layer. An organic optical component prepared from such a structure shows an optical loss of less than 2.0 dB.cm-1 at at least one wavelength in the range 300 to 1600 nm. The method of forming such a structure, e.g. waveguide, requires forming a line of contact between a flexible dispensing layer and the polymer surface in which the features defining the waveguide are located and progressively contacting the surface with the flexible dispensing layer such the line of contact advances across the surface. Sufficient of a resin (6) capable of forming the second polymer is applied along the line of contact and sufficient pressure is applied such that substantially all of the resin which is surplus to that required to fill the feature progresses with the line of contact.
    • 一种用于制备有机光学部件的聚合物结构,所述聚合物结构包括(a)具有第一折射率的光学透射的第一聚合物的第一层(2),所述第一层的表面至少被限定在其中 一个保留特征(3); (b)保留在所述至少一个保留特征内的光学透射的第二聚合物,所述第二聚合物具有大于所述第一折射率的第二折射率; 和(c)在第一层的表面上具有小于1.5μm的最大厚度的第二聚合物的覆盖层。 由这种结构制备的有机光学部件在300〜1600nm的范围内的至少一个波长的光损失小于2.0dB·cm -1。 形成这种结构的方法,例如 波导管需要在柔性分配层与聚合物表面之间形成接触线,其中限定波导的特征位于该表面,并且使柔性分配层逐渐接触表面,使得该接触线穿过该表面。 沿着接触线施加足够的能够形成第二聚合物的树脂(6),并且施加足够的压力,使得基本上所有满足填充特征所需要的剩余的树脂随着接触线进行。