Optical member and optical product provided therewith

   
   

An optical member comprising a polymer which is amorphous and has a glass transition temperature of not lower than 110.degree. C. and optical property parameters O'.sub.R (.infin.)) and O'.sub.G (.infin.) that satisfy the following inequality (1), .vertline.O'.sub.G (.infin.).vertline.<-0.75.times..vertline.O'.sub.R (.infin.).vertline.+0.017 (1), is superior in its heat resistance and transparency and high in its stability of optical properties. Therefore, the optical member can be used as, for example, a constituent of optical systems in a liquid crystal display, thereby suppressing change in a display color tone depending on variation of using circumstances of the liquid crystal display.

Ein optisches Mitglied, das ein Polymer-Plastik enthält, das formlos ist und eine Glasübergangstemperatur von nicht niedrigerem als 110.degree hat. C. und der optischen Eigenschaft Parameter O'.sub.R (infin.)) und O'.sub.G (infin.) das erfüllen die folgende Verschiedenheit (1), vertline.O'.sub.G (infin.).vertline.

 
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