Fluorene derivatives and lens using the same

摘要

Fluorene derivatives are described including those having optical properties which can make them suitable for use in optical systems such as cameras. Various derivatives can have high polarity, small molecular volume, low glass transition temperature, high transparency and/or excellent optical characteristics. In addition, a process for making the fluorene derivatives and products made from the fluorene derivatives are described.

主权项

1. A fluorene derivative represented by the following Chemical Formula 1: wherein R1, R2, R3, and R4 are the same as or different from each other and are H or represented by the following Chemical Formula 2, and at least two of R1, R2, R3, and R4 are independently selected from compounds represented by the following Chemical Formula 2:
—R5—Ar  (Chemical Formula 2) wherein R5 is a (C1-C5) alkanediyl group, and Ar is a (C6-C22) aryl group.