公开(公告)号：US12050314B2

公开(公告)日：2024-07-30

申请号：US17344173

申请日：2021-06-10

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Seokwoo Jeon ,  Donghwi Cho ,  Sanghyeon Nam ,  Youngsuk Shim

IPC: G02B26/00 ,  E06B9/24 ,  G02B5/02 ,  G02B26/02 ,  G03F7/20

CPC classification number: G02B26/023 ,  E06B9/24 ,  G02B5/0236 ,  G03F7/2045 ,  E06B2009/2417

Abstract: A stretchable transparency-adjusting film includes an inner elastic part having a three-dimensional network shape and including a first elastomer, an inorganic thin film surrounding the inner elastic part, and an outer elastic part surrounding the inorganic thin film and including a second elastomer. A scattering unit defined by the inner elastic part, the inorganic thin film and the outer elastic part in a cross-section is orientated in an inclined direction to a vertical direction and a horizontal direction.

公开(公告)号：US11940635B2

公开(公告)日：2024-03-26

申请号：US16997245

申请日：2020-08-19

Applicant: LINTEC CORPORATION

Inventor： Baku Katagiri ,  Kentaro Kusama ,  Tatsuki Kuramoto

IPC: G02B5/02

CPC classification number: G02B5/0236 ,  G02B5/0284

Abstract: A light diffusion control body includes at least two light diffusion control layers each having a regular internal structure. The regular internal structure includes a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index. The at least two light diffusion control layers includes a first light diffusion control layer and a second light diffusion control layer each having a minimum value of a haze value of 35% or more. The haze value is measured when one surface of each of the first light diffusion control layer and the second light diffusion control layer is irradiated sequentially with a light ray at an incident angle of −70° to 70° with respect to the normal direction of the surface being 0°.

公开(公告)号：US20230408738A1

公开(公告)日：2023-12-21

申请号：US18361634

申请日：2023-07-28

Applicant: STMicroelectronics (Crolles 2) SAS

Inventor： Vincent FARYS ,  Alain INARD ,  Olivier NOBLANC

IPC: G02B5/02 ,  C23C16/34 ,  C23C18/12 ,  C23C16/56

CPC classification number: G02B5/0263 ,  C23C16/345 ,  G02B5/0268 ,  C23C18/1208 ,  G02B5/0236 ,  C23C16/56

Abstract: Methods of manufacture of an optical diffuser. In one embodiment, an optical diffuser is formed by providing a wafer including a silicon slice of which an upper face is covered with a first layer made of a first material itself covered with a second layer made of a second selectively etchable material with respect to the first material. The method further includes forming openings in the second layer extending up to the first layer and filling the openings in the second layer with a third material. The method yet further includes bonding a glass substrate to the wafer on the side of its upper face and removing the silicon slice.

公开(公告)号：US20230229266A1

公开(公告)日：2023-07-20

申请号：US18155669

申请日：2023-01-17

Applicant: FlatFrog Laboratories AB

Inventor： Håkan Bergström ,  Thomas Craven-Bartle ,  Tomas SVENSSON

IPC: G06F3/042 ,  G02B5/02 ,  G02B6/42

CPC classification number: G06F3/0421 ,  G02B5/021 ,  G02B5/0236 ,  G02B5/0278 ,  G02B5/0284 ,  G02B6/4206

Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of emitters and detectors arranged along a perimeter of the light transmissive panel, and a light directing arrangement arranged adjacent the perimeter. The emitters are arranged to emit a respective beam of emitted light and the light directing arrangement is arranged to direct the light along a light path from the emitters to the touch surface. A diffusive light scattering element is arranged in the light path.

公开(公告)号：US20230204984A1

公开(公告)日：2023-06-29

申请号：US18083368

申请日：2022-12-16

Applicant: INNOVEGA INC.

Inventor： Mark Freeman ,  Jay Marsh ,  Jerome Legerton

IPC: G02C7/12 ,  G02C7/04 ,  G02B5/02 ,  G02B27/48 ,  G03B21/62 ,  G02B5/30

CPC classification number: G02C7/12 ,  G02C7/042 ,  G02B5/0236 ,  G02B27/48 ,  G02B5/0284 ,  G02B5/0221 ,  G03B21/62 ,  G02B5/3058 ,  G02C7/044

Abstract: According to some embodiments, a transparent screen includes a first transparent substrate having a first transparent substrate index of refraction and including a surface relief pattern, a partially reflective coating formed on the surface relief pattern, and a second transparent substrate bonded over the partially reflective coating with an optical adhesive having the first transparent substrate index of refraction.

公开(公告)号：US20190179060A1

公开(公告)日：2019-06-13

申请号：US16239800

申请日：2019-01-04

Applicant: LINTEC Corporation

Inventor： Kentaro KUSAMA ,  Baku KATAGIRI ,  Kenta TOMIOKA ,  Tomoo ORUI ,  Satoru SHOSHI

IPC: G02B5/02

CPC classification number: G02B5/0257 ,  G02B5/0236 ,  G02B5/0247 ,  G02B5/0278

Abstract: Provided are an optical diffusion film composed of a single layer, for which the optical diffusion incident angle region can be effectively expanded, and even when the incident angle of incident light is varied within the optical diffusion incident angle region, changes in the optical diffusion characteristics can be effectively suppressed; and a method for manufacturing the optical diffusion film.Disclosed is an optical diffusion film having, inside the film, a single optical diffusion layer having a first internal structure and a second internal structure, each of which include a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index, sequentially from the lower part along the film thickness direction, and the regions having a relatively high refractive index in the first internal structure have a bent section at an intermediate point along the film thickness direction.

公开(公告)号：US09958700B2

公开(公告)日：2018-05-01

申请号：US14813434

申请日：2015-07-30

Applicant: Eastman Kodak Company

Inventor： Kevin D. Lofftus ,  Paul James Kane ,  James Henry Reynolds

IPC: G02B27/48 ,  G02F1/01 ,  G03B21/56 ,  G03B21/20 ,  G02B5/02

CPC classification number: G02B27/48 ,  G02B5/0236 ,  G02F1/0128 ,  G03B21/2033 ,  G03B21/208 ,  G03B21/562

Abstract: An optical modulator (12) for speckle suppression in a laser projection system includes a first planar transparent conductor (20); a second optionally transparent planar conductor (26); a diffusing element (22) disposed between the first and second conductor; and an alternating voltage applied across the first and second conductors creates in-plane movement or distortion in the diffusing element to reduce laser speckle.

公开(公告)号：US09945990B2

公开(公告)日：2018-04-17

申请号：US14775522

申请日：2014-02-25

Applicant: LINTEC Corporation

Inventor： Kentaro Kusama ,  Baku Katagiri ,  Tomoo Orui ,  Satoru Shoshi

IPC: G02B1/04 ,  C09D133/14 ,  G02B5/02 ,  C08F299/06 ,  C08F220/30 ,  C08G18/48 ,  C08G18/67 ,  C08G18/75 ,  C08F283/00 ,  C08F290/14 ,  B05D3/06 ,  G02F1/1335

CPC classification number: G02B5/0278 ,  B05D3/067 ,  C08F220/30 ,  C08F283/006 ,  C08F290/147 ,  C08F299/06 ,  C08G18/4825 ,  C08G18/672 ,  C08G18/755 ,  C09D133/14 ,  G02B1/04 ,  G02B5/0236 ,  G02B5/0257 ,  G02B2207/123 ,  G02F1/133504 ,  G02F1/133553 ,  C08F2220/301 ,  C08L33/08

Abstract: A light diffusion film in which the angle of aperture of diffused light has been expanded effectively by forming, within the film, a predetermined columnar structure composed of pillar-shaped objects having a bent part and a region having a relatively low refractive index, and a method for manufacturing the light diffusion film are provided. Disclosed is a light diffusion film having a columnar structure in which plural pillar-shaped objects having a relatively high refractive index are arranged to stand close together in the film thickness direction in a region having a relatively low refractive index, and the plural pillar-shaped objects having a relatively high refractive index have a bent part in the middle of the pillar-shaped objects.

公开(公告)号：US09927606B1

公开(公告)日：2018-03-27

申请号：US15256283

申请日：2016-09-02

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Toru Sakai

IPC: G02B26/00 ,  G02B5/00 ,  G02B5/20 ,  G02B5/02

CPC classification number: G02B26/005 ,  G02B5/003 ,  G02B5/0236 ,  G02B5/0273 ,  G02B5/0278 ,  G02B5/201

Abstract: A display device includes a first support plate and a second support plate. The second support plate has a first refractive index. A pixel region is positioned between the first support plate and the second support plate. A first liquid and a second liquid that is immiscible with the first liquid are disposed in the pixel region. A diffusion layer disposed between the first support plate and the second support plate contacts the second liquid. The diffusion layer includes a first region providing a common electrode associated with the pixel region.

公开(公告)号：US09885810B2

公开(公告)日：2018-02-06

申请号：US15151273

申请日：2016-05-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.

Inventor： Hongshu Zhang

IPC: G02B5/02 ,  G02B1/14 ,  G02B5/30 ,  G02B5/00

CPC classification number: G02B5/0247 ,  G02B1/14 ,  G02B5/003 ,  G02B5/02 ,  G02B5/0236 ,  G02B5/0268 ,  G02B5/0278 ,  G02B5/3033

Abstract: Disclosed are an optical assembly and a manufacturing method thereof, and a polarizer. The optical assembly includes: a first film layer; a second film layer disposed opposite to the first film layer; and multiple light absorption patterns disposed on the first film layer. The first film layer and the second film layer are light transmissive film layers, holes are disposed in the second film layer at locations corresponding to the light absorption patterns, and a dimension of an end of each hole away from the light absorption pattern is smaller than a dimension of an end of the hole close to the light absorption pattern. The optical assembly further includes light transmissive protrusions protruding into the holes.