| 摘要 |
PURPOSE:To let an optical member having a surface that is good in releasability and high in optical accuracy, by making a releasing layer up of a compound a fluorine-substituted hydrocarbon group and an alkoxysilane group or a halogenated silane group. CONSTITUTION:The surface of a master 2 is finished to have an optical surface accuracy required for molding and is made up of a metal or glass. A releasing layer 3 that is formed on the master 2 is made up of a compound having a fluorine-substituted hydrocarbon group and an alkoxysilane group or a halogenated silane group. On the other hand, a glass substrate 4 is placed firmly on a support member 5, a small amount of a resin 6 is dropped thereon, and the master 2 is placed thereon. The space between the master 2 and the glass substrate 4 is filled with the resin, while is allowed to solidify to form a resin layer 8. The space between the master and the glass substrate is secured by a spacer 7. Then when the master 2 is separated from the glass substrate, a nonspherical lens high in accuracy made up of the resin layer 8 and the glass substrate 4 is obtained. |
