公开(公告)号：US20240369737A1

公开(公告)日：2024-11-07

申请号：US18650809

申请日：2024-04-30

Applicant: KOWA COMPANY, LTD.

Inventor： Kentaro IWAMI ,  Hideki INA ,  Jun MARUYAMA

IPC: G02B1/00 ,  G02B27/00

Abstract: An optical element and an optical design method to improve optical characteristics are provided. The optical element includes: a metalens having a finely shaped surface on which a fine pattern is formed based on a shape of a meta-atom and a bonded surface formed in a flat shape; and a bonding lens having a feature equivalent to an existing lens and bonded to the bonded surface. For example, the bonding lens includes at least: a first glass material bonded to the bonded surface; and a second glass material separated from the bonded surface and bonded to the first glass material. For example, the optical design method includes: a setting step of setting, based on optical design of a configuration including binary optics replacing a feature of the metalens, a first step pattern of the binary optics; a first calculation step; and a first identification step.