公开(公告)号：US20230305197A1

公开(公告)日：2023-09-28

申请号：US18023579

申请日：2021-08-30

Applicant: SOMAR CORPORATION

Inventor： Naoki SAKAZUME

IPC: G02B5/00

CPC classification number: G02B5/003

Abstract: A light shielding component with low gloss and high optical concentration independent of the film thickness of the light shielding layer is provided. The light shielding component includes a substrate film; and a light shielding layer formed on at least one surface of the substrate film. The maximum height Rz measured according to JIS B0601:2001 of the surface forming the light shielding layer is set to 1 μm or more and 5 μm or less, and the average length Rsm of the contour curve elements is set to 40 μm or less. Preferably, the light shielding layer includes a particle group with a particle size of 2 μm˜6 μm and a particle group with a particle size of 0.06 μm˜0.4 μm.

公开(公告)号：US20240004108A1

公开(公告)日：2024-01-04

申请号：US18254535

申请日：2021-11-24

Applicant: SOMAR CORPORATION

Inventor： Hiroshi NAMAI ,  Naoki SAKAZUME

IPC: G02B5/00 ,  G02B1/111 ,  G02B1/04

CPC classification number: G02B5/003 ,  G02B1/111 ,  G02B1/04

Abstract: A light shielding component with low gloss, high blackness, and excellent processability is provided. A light shielding layer (3) containing black fine particles (32), low refractive index nanoparticles (33), and a resin composition (31) is formed on at least one surface of a substrate. The average particle size of the black fine particles (32) is set to be between 0.1 μm and 50 μm, and the average particle size of the low refractive index nanoparticles (33) is set to be between 1 nm and 200 nm. Porous carbon is preferred as the black fine particles (32), while magnesium fluoride particles and silicon oxide particles are preferred as the low-refractive-index nanoparticles (33).

公开(公告)号：US20230046475A1

公开(公告)日：2023-02-16

申请号：US17789507

申请日：2020-12-25

Applicant: SOMAR CORPORATION

Inventor： Hinoki SAKAMURA ,  Naoki SAKAZUME

IPC: G02B5/00 ,  C23C14/08 ,  G02B1/11 ,  G02B7/02 ,  G02B5/22

Abstract: Provided is a black light-shielding member, which has an excellent effect of anti-reflection that based on low glossiness and has a high blackness. A black light-shielding member including a substrate film, a resin-made light-shielding layer having a concave-convex shape formed on at least one surface of the substrate film, and a blackened layer formed on the resin-made light-shielding layer is produced. By adjusting an arithmetic mean surface roughness Ra of the surface on which the light-shielding layer and the blackened layer are formed to be 0.25 μm or more, and the maximum thickness of the blackened layer is less than the said Ra, a blackness with an L value of 12 or less is achieved.