OPTICAL MEMBER AND METHOD FOR PRODUCING SAME

    公开(公告)号:EP3845934A1

    公开(公告)日:2021-07-07

    申请号:EP19853661.7

    申请日:2019-08-23

    IPC分类号: G02B5/00 G03F1/64

    摘要: The present invention provides a lightweight optical member that can be produced at a relatively low cost, wherein distortion due to temperature rise is suppressed, and the appearance color is sufficiently blackened or darkened, and a method for efficiently producing the optical member. The optical member of the present invention comprises: a base member made of titanium or a titanium alloy, and a carbon-doped titanium oxide layer formed on the surface of the base member. The carbon content in the carbon-doped titanium oxide layer is preferably 0.1 to 15 at%.