公开(公告)号：US20230176249A1

公开(公告)日：2023-06-08

申请号：US17987136

申请日：2022-11-15

Applicant: Daicel Corporation

Inventor： Hiroki Takenaka ,  Hiromi Honma ,  Hiroyuki Hanato ,  Shinji Kikuchi

IPC: G02B1/04 ,  B29D11/00 ,  C09J163/00 ,  C09J133/04 ,  C09J5/00

CPC classification number: G02B1/041 ,  B29D11/00442 ,  B29D11/00403 ,  C09J163/00 ,  C09J133/04 ,  C09J5/00 ,  G02B5/005

Abstract: As a first aspect, provided is a hybrid lens for which peeling and shifting of a glass and a resin lens do not easily occur, and for which floating of an adhesive layer and peeling between the glass and resin lens do not easily occur even when the hybrid lens is exposed to a high temperature environment. As a second aspect, provided is an easily produced hybrid lens in which a glass and a resin lens are laminated, and in which the resin lens and a light-shielding portion are laminated with good precision.
The hybrid lenses 11 and 12 each include a glass substrate 3, a resin lens 2, and an adhesive layer 4 provided between the glass substrate 3 and the resin lens 2. In the hybrid lens 11, the glass transition temperature of the resin lens 2 is higher than the glass transition temperature of the adhesive layer 4, and the difference between the glass transition temperature of the resin lens 2 and the glass transition temperature of the adhesive layer 4 is from 97 to 150° C. The hybrid lens 12 further includes a metal compound layer 52 provided between the glass substrate 3 and the resin lens 2.

公开(公告)号：US20230288614A1

公开(公告)日：2023-09-14

申请号：US18089690

申请日：2022-12-28

Applicant: Daicel Corporation

Inventor： Hiroki Takenaka ,  Hiroyuki Hanato ,  Maki Kishimoto

IPC: G02B3/00 ,  G03B17/12 ,  G02B7/02 ,  G02B27/00

CPC classification number: G02B3/0075 ,  G03B17/12 ,  G02B7/02 ,  G02B27/0018

Abstract: There is provided a technique that can suppress generation of flare and/or ghost by incident light reflecting off an inner wall of the spacer in a lens unit including a wafer-level lens and a spacer. A lens unit is formed by joining a lens portion including a lens and a spacer portion including a through hole through which light emitted from the lens passes, in which the spacer portion includes, in an end surface in which the lens portion is joined, an opening portion of the through hole and an inner wall portion, which is a wall surface of an outer edge of the opening portion, and the inner wall portion has a surface roughness greater than a surface roughness of an end surface of the spacer portion opposite to the end surface in which the lens portion is joined.