公开(公告)号：US12124058B2

公开(公告)日：2024-10-22

申请号：US17207099

申请日：2021-03-19

Applicant: KT CORPORATION

Inventor： Seung Cheol Kim ,  Jong Heum Kim ,  Tae Gil Yang ,  Sang Hoon Han

IPC: G02B27/14 ,  G02B30/50

CPC classification number: G02B30/50 ,  G02B27/144

Abstract: A spatial image projection device includes a housing, a display unit that is accommodated in the housing and configured to output a hologram image, a half-mirror configured to project a spatial image corresponding to the hologram image inside the housing, and a first polarizing film that is disposed outside the housing and configured to block a part of light directed toward a viewer from the housing.

公开(公告)号：US20240262059A1

公开(公告)日：2024-08-08

申请号：US18638950

申请日：2024-04-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J. Ouderkirk ,  Zhisheng Yun ,  Timothy L. Wong ,  Erin A. McDowell ,  Jo A. Etter ,  Robert M. Jennings

IPC: B29D11/00 ,  G02B5/30 ,  G02B13/00 ,  G02B17/08 ,  G02B27/00 ,  G02B27/01 ,  G02B27/09 ,  G02B27/14 ,  G02B27/28 ,  G03B21/28

CPC classification number: B29D11/00644 ,  G02B5/30 ,  G02B5/3041 ,  G02B5/305 ,  G02B5/3058 ,  G02B5/3066 ,  G02B5/3083 ,  G02B13/0055 ,  G02B17/0804 ,  G02B17/0856 ,  G02B27/0068 ,  G02B27/0081 ,  G02B27/0172 ,  G02B27/0905 ,  G02B27/0983 ,  G02B27/144 ,  G02B27/145 ,  G02B27/148 ,  G02B27/283 ,  G02B27/286 ,  G03B21/28 ,  G02B17/0896 ,  G02B2027/011 ,  G02B2027/013 ,  G02B2027/0138

Abstract: A shaped reflective polarizer has different maximum sags in different directions and has an interior portion rotationally symmetric about a principle axis and a peripheral portion adjacent the interior portion and rotationally asymmetric about the principle axis. An optical system includes a partial reflector and an optical stack including an optical lens and the shaped reflective polarizer disposed on a curved major surface of the optical lens. The optical lens may have a contoured edge adapted to be placed adjacent an eye of a viewer and substantially conform to the viewer's face.

公开(公告)号：US20240255780A1

公开(公告)日：2024-08-01

申请号：US18102747

申请日：2023-01-29

Applicant: Designs for Vision, Inc.

Inventor： Richard E. Feinbloom ,  Moty Solomon

IPC: G02C9/04 ,  G02B25/00 ,  G02B27/14

CPC classification number: G02C9/04 ,  G02B21/18 ,  G02B21/361 ,  G02B21/362 ,  G02B23/08 ,  G02B23/14 ,  G02B23/16 ,  G02B25/004 ,  G02B25/007 ,  G02B25/008 ,  G02B27/144 ,  A61B90/361 ,  G02B5/20 ,  G02B25/001 ,  H04N7/183

Abstract: A telescopic/image capture device that allows for the concurrent viewing and capturing an image of an object, wherein the captured image is magnified to the same level than that of the viewed image. Further included are filters incorporated into the device to allow for the attenuation of light in undesired wavelengths while allowing light in desired wavelengths to pass unattenuated. In still a further aspect of the invention, a second telescopic lens is incorporated into the path of light to be captured by the image capture device, wherein the image captured and recorded is of a greater magnification than that of the user viewable image.

公开(公告)号：US11914269B2

公开(公告)日：2024-02-27

申请号：US17094734

申请日：2020-11-10

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Zih-Yi Li ,  Ying-Tso Lin ,  Shang-Yu Hsu ,  Ying-Hui Yang

IPC: G02F1/37 ,  G02B27/10 ,  G02B27/14 ,  B23K26/06 ,  B23K26/067 ,  G02B27/28

CPC classification number: G02F1/37 ,  B23K26/067 ,  B23K26/0626 ,  G02B27/106 ,  G02B27/1006 ,  G02B27/144 ,  G02B27/281

Abstract: A laser processing system includes a laser source, an optical splitting unit, a frequency conversion unit and at least one optical mixer. The optical splitting unit is provided to divide light emitted by the laser source into a first light and a second light, and the first light and the second light have the same wavelength range. The frequency conversion unit is provided to convert the second light into a working light. The working light includes a frequency converted light, and the frequency converted light and the second light have different wavelength ranges. The optical mixer is provided to mix the first light with the frequency converted light.

公开(公告)号：US11902683B1

公开(公告)日：2024-02-13

申请号：US18032375

申请日：2021-11-03

Applicant: Alexander Ivanovich Gorbatyuk

Inventor： Alexander Ivanovich Gorbatyuk

IPC: H04N25/75 ,  H04N25/74 ,  G02B27/14

CPC classification number: H04N25/75 ,  H04N25/74 ,  G02B27/144

Abstract: A technical solution is provided, which allows generating a high-quality digital image using multiple CCD arrays. More specifically, a lens generates an image on an area equal to the sum of photosensitive areas of n CCD arrays. The CCD arrays are shifted from one another. The image is projected via four channels onto all the CCD arrays such that each of said arrays generates a video signal from only one of n sectors of the image. The video signals from the CCD arrays, which operate on a conventional scanning standard and in parallel, are digitized, pre-processed and recorded in a memory from which they are read at a rate n times higher than a clock rate. A digital image is produced by electronically combining the video signals from the CCD arrays that convert adjacent sectors of the image, after which the video signal is post-processed.

公开(公告)号：US20240045222A1

公开(公告)日：2024-02-08

申请号：US18489877

申请日：2023-10-19

Applicant: TRUMPF Laser- und Systemtechnik GmbH

Inventor： Malte Kumkar ,  Daniel Grossmann

IPC: G02B27/14 ,  G02B27/28

CPC classification number: G02B27/144 ,  G02B27/283 ,  G02B27/286

Abstract: A combination device includes at least two inputs and one or more outputs. Each input is for entry of a respective input beam. Each output is for exit of a respective output beam. The combination device is configured to form the respective output beam through a coherent combination of two input beams. The combination device is configured to set a polarization direction of the respective output beam based on a relative phase position of individual phases of the two input beams from which the respective output beam is formed through the coherent combination.

公开(公告)号：US20240036659A1

公开(公告)日：2024-02-01

申请号：US18360768

申请日：2023-07-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA

IPC: G06F3/0354 ,  G02B27/14 ,  G02B27/10

CPC classification number: G06F3/03542 ,  G02B27/144 ,  G02B27/1086 ,  G06F3/038

Abstract: An electronic pen is provided with a light source that emits irradiation light, a rotatable rotating body, a deflecting member that deflects, toward the rotating body, the irradiation light emitted by the light source and transmits the irradiation light reflected by the rotating body, and a detecting member that receives the irradiation light transmitted through the deflecting member.

公开(公告)号：US20230415437A1

公开(公告)日：2023-12-28

申请号：US18463372

申请日：2023-09-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J. Ouderkirk ,  Timothy L. Wong ,  Zhisheng Yun ,  Erin A. McDowell ,  Gregg A. Ambur

IPC: B29D11/00 ,  G02B13/00 ,  G02B17/08 ,  G02B5/30 ,  G02B27/01 ,  G02B27/14 ,  G02B27/28 ,  G02B27/00 ,  G02B27/09 ,  G03B21/28

CPC classification number: B29D11/00644 ,  G02B13/0055 ,  G02B17/0856 ,  G02B5/30 ,  G02B5/305 ,  G02B27/0172 ,  G02B5/3041 ,  G02B5/3058 ,  G02B5/3083 ,  G02B27/144 ,  G02B27/145 ,  G02B27/148 ,  G02B27/283 ,  G02B27/286 ,  G02B27/0068 ,  G02B5/3066 ,  G02B27/0905 ,  G02B27/0983 ,  G03B21/28 ,  G02B17/0804 ,  G02B27/0081 ,  G02B2027/011 ,  G02B2027/013 ,  G02B17/0896 ,  G02B2027/0138

Abstract: An optical system includes a partial reflector having an average optical reflectance of at least 30% in a plurality of wavelengths, an image source disposed to emit image light toward the partial reflector, and a reflective polarizer disposed proximate the partial reflector. The reflective polarizer is curved about two orthogonal axes and can include at least one layer substantially optically uniaxial at at least one location. The image light may be transmitted by the reflective polarizer after it is first reflected by the reflective polarizer. Substantially any chief light ray having at least first and second wavelengths at least 150 nm apart in the plurality of wavelengths and emitted by the image source and transmitted by a stop surface or exit pupil of the optical system has a color separation distance of less than 1.5 percent of a field of view.

公开(公告)号：US11815445B2

公开(公告)日：2023-11-14

申请号：US17013840

申请日：2020-09-07

Applicant: DELTA ELECTRONICS, INC.

Inventor： Bo Ma ,  Jei-Yin Yiu ,  Yu-Kai Kao ,  I-An Yen ,  Chun-Jung Li ,  Shu-Ting Hsu ,  Song-Bin Huang ,  Ni-Chin Ko

IPC: G01N21/01 ,  B01L7/00 ,  G02B5/20 ,  G02B7/182 ,  G02B26/08 ,  G02B27/14

CPC classification number: G01N21/01 ,  B01L7/525 ,  B01L2200/148 ,  B01L2300/0663 ,  G02B5/205 ,  G02B7/1821 ,  G02B26/0825 ,  G02B27/144

Abstract: An optical calibration tool includes a first body, a light emitter, a light receiver, a second body, and a light reflecting member. The first body has a first engaging port and a second engaging port. The light emitter and the light receiver are disposed in the first body. The second body has a third engaging port and a channel communicated with each other. The third engaging port is configured to selectively engage one of the first engaging port and the second engaging port. When the third engaging port is engaged with the first engaging port, the light emitter is optically coupled to the light reflecting member. When the third engaging port is engaged with the second engaging port, the light receiver is optically coupled to the light reflecting member.

公开(公告)号：US20230350208A1

公开(公告)日：2023-11-02

申请号：US18349060

申请日：2023-07-07

Applicant: Akonia Holographics LLC

Inventor： Mark R. Ayres ,  Adam Urness ,  Kenneth E. Anderson ,  Friso Schlottau

IPC: G02B27/01 ,  F21V8/00 ,  G02B27/14 ,  G03H1/02 ,  G03H1/04 ,  G02B5/18

CPC classification number: G02B27/0172 ,  G02B6/0016 ,  G02B6/0031 ,  G02B6/0055 ,  G02B27/14 ,  G03H1/02 ,  G03H1/0402 ,  G02B27/144 ,  G02B5/18 ,  G02B2027/0178 ,  G02B2027/0174 ,  G03H2001/0216 ,  G03H2001/026 ,  G03H2001/0441 ,  G03H2222/45 ,  G02B2027/0147 ,  G02B5/32

Abstract: An optical reflective device for homogenizing light including a waveguide having a first and second waveguide surface and a partially reflective element is disclosed. The partially reflective element may be located between the first waveguide surface and the second waveguide surface. The partially reflective element may have a reflective axis parallel to a waveguide surface normal. The partially reflective element may be configured to reflect light incident on the partially reflective element at a first reflectivity for a first set of incidence angles and reflect light incident on the partially reflective element at a second reflectivity for a second set of incident angles.