公开(公告)号：US20220206192A1

公开(公告)日：2022-06-30

申请号：US17135137

申请日：2020-12-28

Applicant: Optivision Technology Inc.

Inventor： Li-Jen HSU ,  Nan-Hung KUO ,  Tsung-Hsien WU ,  Young-Cheng CHOU

IPC: G02B3/08 ,  G02B1/04 ,  G02B1/14 ,  B29D11/00

Abstract: An optical lens device for a head-mounted display includes a transparent support substrate and a Fresnel lens disposed thereon. The Fresnel lens includes a central lens element and a plurality of prismatic elements arranged relative to the central lens element in a proximal-to-distal manner. Each of the prismatic elements has a base facing toward the support substrate, and a draft facet and a sloped facet extending from the base away from the support substrate to intersect with each other to form an apex. Each of the prismatic elements has a height measured from the base to the apex and not greater than 75 μm. The base has a width not greater than 250 μm. A method and a mold for producing the optical lens device are also disclosed.

公开(公告)号：US20200271845A1

公开(公告)日：2020-08-27

申请号：US16398530

申请日：2019-04-30

Applicant: Optivision Technology Inc.

Inventor： Chia-Kuo KAO ,  Tsung-Hsien WU ,  Li-Jen HSU

IPC: F21V8/00

Abstract: A light guide plate includes a plate body having a light exit surface, a reflection surface opposite to the light exit surface, and a light-incident surface connected between the light exit surface and the reflection surface and adapted to face a light source. The light-incident surface includes a vertical portion perpendicularly connected to the light exit surface, and a sloped portion connecting the vertical portion and the reflection surface. The sloped portion is inwardly inclined from the vertical portion towards the reflection surface.

公开(公告)号：US12259572B2

公开(公告)日：2025-03-25

申请号：US18544094

申请日：2023-12-18

Applicant: Optivision Technology Inc.

Inventor： Chung-Wei Wang ,  Li-Jen Hsu ,  Hao-Ying Hsu

IPC: F21V8/00

Abstract: An optical composite structure includes first, second and third prism sheets. The first prism sheet has a first light incident surface and a first light exit surface opposite to each other. The second prism sheet has a second light incident surface facing the first light exit surface and a second light exit surface opposite to the second light incident surface, and includes a haze layer having the second light incident surface and a prism layer which is stacked on the haze layer and which has the second light exit surface. The third prism sheet has a third light incident surface facing the second light exit surface, and includes a haze layer and a prism layer stacked on the haze layer of the third prism sheet. The haze layer of the third prism sheet has a haze greater than a haze of the haze layer of the second prism sheet.

公开(公告)号：US11719862B2

公开(公告)日：2023-08-08

申请号：US17135137

申请日：2020-12-28

Applicant: Optivision Technology Inc.

Inventor： Li-Jen Hsu ,  Nan-Hung Kuo ,  Tsung-Hsien Wu ,  Young-Cheng Chou

IPC: G02B3/08 ,  G02B1/04 ,  B29D11/00 ,  G02B1/14 ,  B29K33/00

CPC classification number: G02B3/08 ,  B29D11/00269 ,  G02B1/041 ,  G02B1/14 ,  B29K2033/12

Abstract: An optical lens device for a head-mounted display includes a transparent support substrate and a Fresnel lens disposed thereon. The Fresnel lens includes a central lens element and a plurality of prismatic elements arranged relative to the central lens element in a proximal-to-distal manner. Each of the prismatic elements has a base facing toward the support substrate, and a draft facet and a sloped facet extending from the base away from the support substrate to intersect with each other to form an apex. Each of the prismatic elements has a height measured from the base to the apex and not greater than 75 μm. The base has a width not greater than 250 μm. A method and a mold for producing the optical lens device are also disclosed.

公开(公告)号：US20210325597A1

公开(公告)日：2021-10-21

申请号：US16943747

申请日：2020-07-30

Applicant: Optivision Technology Inc.

Inventor： Chung-Wei WANG ,  Li-Jen HSU

IPC: F21V8/00 ,  G02B5/00

Abstract: A backlight module includes a light guide plate, a light source, a prism sheet, and a reflective film. The light source is disposed on a light-incident surface of the light guide plate. The prism sheet is disposed on a light exit surface of the light guide plate, and includes a plurality of first prism structures that protrude toward the light exit surface of the light guide plate. The reflective film is disposed on a reflection surface of the light guide plate, and includes a film body, a plurality of second prism structures that are disposed on the film body and that protrude from the film body toward the reflection surface, and a light absorbing layer that is disposed on the film body opposite to the second prism structures.

公开(公告)号：US10551551B2

公开(公告)日：2020-02-04

申请号：US16175447

申请日：2018-10-30

Applicant: Optivision Technology Inc.

Inventor： Li-Jen Hsu ,  Chun-Hsien Lu ,  Huan-Hsiang Li ,  Tsung-Hsien Wu

IPC: F21V8/00

Abstract: A light guide plate includes a light guide layer and a first microstructure layer. The light guide layer has a light exit surface, a back surface, and a light incidence surface interconnecting the light exit surface and the back surface. The first microstructure layer is disposed on the back surface, and includes a plurality of first microstructures spaced apart from one another. Each first microstructure has a polygonal planar base, and two first inclined faces and two second inclined faces which extend from the planar base, and which are proximal and distal to the light incidence surface, respectively. Each first inclined face intersects the respective second inclined face at a respective first ridge. Each first ridge cooperates with the planar base to form a first angle that ranges from 5 to 70 degrees.

公开(公告)号：US20250060525A1

公开(公告)日：2025-02-20

申请号：US18544094

申请日：2023-12-18

Applicant: Optivision Technology Inc.

Inventor： Chung-Wei WANG ,  Li-Jen HSU ,  Hao-Ying HSU

IPC: F21V8/00

Abstract: An optical composite structure includes first, second and third prism sheets. The first prism sheet has a first light incident surface and a first light exit surface opposite to each other. The second prism sheet has a second light incident surface facing the first light exit surface and a second light exit surface opposite to the second light incident surface, and includes a haze layer having the second light incident surface and a prism layer which is stacked on the haze layer and which has the second light exit surface. The third prism sheet has a third light incident surface facing the second light exit surface, and includes a haze layer and a prism layer stacked on the haze layer of the third prism sheet. The haze layer of the third prism sheet has a haze greater than a haze of the haze layer of the second prism sheet.

公开(公告)号：US20190235150A1

公开(公告)日：2019-08-01

申请号：US16175447

申请日：2018-10-30

Applicant: Optivision Technology Inc.

Inventor： Li-Jen HSU ,  Chun-Hsien LU ,  Huan-Hsiang LI ,  Tsung-Hsien WU

IPC: F21V8/00

Abstract: A light guide plate includes a light guide layer and a first microstructure layer. The light guide layer has a light exit surface, a back surface, and a light incidence surface interconnecting the light exit surface and the back surface. The first microstructure layer is disposed on the back surface, and includes a plurality of first microstructures spaced apart from one another. Each first microstructure has a polygonal planar base, and two first inclined faces and two second inclined faces which extend from the planar base, and which are proximal and distal to the light incidence surface, respectively. Each first inclined face intersects the respective second inclined face at a respective first ridge. Each first ridge cooperates with the planar base to form a first angle that ranges from 5 to 70 degrees.

公开(公告)号：US09151886B2

公开(公告)日：2015-10-06

申请号：US14318960

申请日：2014-06-30

Applicant: OPTIVISION TECHNOLOGY INC.

Inventor： Kuang-Lin Yuan ,  Wen-Hao Liu ,  Shih-Ming Chen

IPC: F21V5/00 ,  G02B5/02 ,  F21V8/00

CPC classification number: G02B6/0051 ,  G02B5/0221 ,  G02B5/0278 ,  G02B6/0053

Abstract: An optical thin film includes: a transparent substrate including a first surface and a second surface which is opposite to the first surface; a first light-condensing layer formed on the first surface of the transparent substrate, the first light-condensing layer having a haze value ranging from 5% to 30% and a surface roughness ranging from 0.1 RMS to 1 RMS; and a second light-condensing layer formed on the second surface of the transparent substrate. The second light-condensing layer has a haze value ranging from 70% to 100% and a surface roughness ranging from 1 RMS to 10 RMS.

Abstract translation: 光学薄膜包括：透明基板，包括第一表面和与第一表面相对的第二表面; 形成在所述透明基板的第一表面上的第一聚光层，所述第一聚光层的雾度值为5％至30％，表面粗糙度为0.1M RMS至1 RMS; 以及形成在所述透明基板的第二表面上的第二聚光层。 第二聚光层的雾度值为70％〜100％，表面粗糙度为1〜10 RMS。

公开(公告)号：US20150146451A1

公开(公告)日：2015-05-28

申请号：US14318960

申请日：2014-06-30

Applicant: OPTIVISION TECHNOLOGY INC.

Inventor： Kuang-Lin YUAN ,  Wen-Hao LIU ,  Shih-Ming CHEN

IPC: F21V8/00

CPC classification number: G02B6/0051 ,  G02B5/0221 ,  G02B5/0278 ,  G02B6/0053

Abstract: An optical thin film includes: a transparent substrate including a first surface and a second surface which is opposite to the first surface; a first light-condensing layer formed on the first surface of the transparent substrate, the first light-condensing layer having a haze value ranging from 5% to 30% and a surface roughness ranging from 0.1 RMS to 1 RMS; and a second light-condensing layer formed on the second surface of the transparent substrate. The second light-condensing layer has a haze value ranging from 70% to 100% and a surface roughness ranging from 1 RMS to 10 RMS.

Abstract translation: 光学薄膜包括：透明基板，包括第一表面和与第一表面相对的第二表面; 形成在所述透明基板的第一表面上的第一聚光层，所述第一聚光层的雾度值为5％至30％，表面粗糙度为0.1M RMS至1 RMS; 以及形成在所述透明基板的第二表面上的第二聚光层。 第二聚光层的雾度值为70％〜100％，表面粗糙度为1〜10 RMS。