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.

公开(公告)号：US20240202745A1

公开(公告)日：2024-06-20

申请号：US18529526

申请日：2023-12-05

Applicant: KOWA COMPANY, Ltd.

Inventor： Hideki INA ,  Yasunari OGUCHI ,  Jun MARUYAMA

IPC: G06Q30/018 ,  G06F21/10 ,  G06Q20/40 ,  H04L9/00

CPC classification number: G06Q30/0185 ,  G06F21/1014 ,  G06Q20/401 ,  H04L9/50

Abstract: An optical design method attempting facilitation of optical design of a configuration including a metalens. The optical design method includes a setting step, a first calculating step, a first identifying step, a second calculating step, a second identifying step, and a designing step. The first calculating step calculates first phase data indicating a relation of a phase to a shape of a meta-atom based on a preliminarily set first wavelength. The first identifying step calculates a first phase pattern from a first step pattern and identifies a fine pattern indicating the shape of the meta-atom corresponding to the first phase pattern by referring to the first phase data. The second calculating step calculates second phase data different from the first phase data based on a preliminarily set second wavelength different from the first wavelength.