公开(公告)号：US20240361511A1

公开(公告)日：2024-10-31

申请号：US18769547

申请日：2024-07-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  John A. Wheatley ,  Andrew J. Carlson

IPC: F21V8/00

CPC classification number: G02B6/0056 ,  G02B6/0026 ,  G02B6/0053

Abstract: An optical construction includes an optical film between first and second prismatic films, which each include pluralities of parallel, linear first and second prisms. Each of the first and second prisms have opposing first and second sides extending from first and second ends of a base of the prism and meeting at a peak. The first and second sides make first and second base angles with the base of the prism. The peaks of the prismatic films face away from each other and the optical film. For a collimated, normally incident light, for at least a first wavelength in a first wavelength range, and for each of first and second polarization states: the optical film has an optical transmission of less than about 1%, and the optical construction transmits at least 1% of the incident light at an oblique angle greater than 5 degrees with respect to the optical film.

公开(公告)号：US12066650B2

公开(公告)日：2024-08-20

申请号：US18319701

申请日：2023-05-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  John A. Wheatley ,  Andrew J. Carlson

IPC: F21V8/00

CPC classification number: G02B6/0056 ,  G02B6/0026 ,  G02B6/0053

Abstract: An optical construction includes an optical film between first and second prismatic films, which each include pluralities of parallel, linear first and second prisms. Each of the first and second prisms have opposing first and second sides extending from first and second ends of a base of the prism and meeting at a peak. The first and second sides make first and second base angles with the base of the prism. The peaks of the prismatic films face away from each other and the optical film. For a collimated, normally incident light, for at least a first wavelength in a first wavelength range, and for each of first and second polarization states: the optical film has an optical transmission of less than about 1%, and the optical construction transmits at least 1% of the incident light at an oblique angle greater than 5 degrees with respect to the optical film.

公开(公告)号：US20230384507A1

公开(公告)日：2023-11-30

申请号：US18319701

申请日：2023-05-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  John A. Wheatley ,  Andrew J. Carlson

IPC: F21V8/00

CPC classification number: G02B6/0056 ,  G02B6/0053 ,  G02B6/0026

Abstract: An optical construction includes an optical film between first and second prismatic films, which each include pluralities of parallel, linear first and second prisms. Each of the first and second prisms have opposing first and second sides extending from first and second ends of a base of the prism and meeting at a peak. The first and second sides make first and second base angles with the base of the prism. The peaks of the prismatic films face away from each other and the optical film. For a collimated, normally incident light, for at least a first wavelength in a first wavelength range, and for each of first and second polarization states: the optical film has an optical transmission of less than about 1%, and the optical construction transmits at least 1% of the incident light at an oblique angle greater than 5 degrees with respect to the optical film.