公开(公告)号：US20240012318A1

公开(公告)日：2024-01-11

申请号：US18471557

申请日：2023-09-21

Applicant: Hisense Laser Display Co., Ltd.

Inventor： Ke Yan ,  Youliang Tian ,  Wei Li ,  Xianrong Liu

IPC: G03B21/20 ,  G02B27/48 ,  G03B21/00

CPC classification number: G03B21/2033 ,  G03B21/2013 ,  G03B21/208 ,  G02B27/48 ,  G03B21/005 ,  G03B21/2073 ,  G03B21/2066

Abstract: Provided is a light source, comprising at least one laser array, a light combining assembly, and a fly-eye lens; wherein the at least one laser array is configured to emit at least two colors of laser light; the light combining assembly is disposed on a light-output side of the at least one laser array and is configured to guide the laser light emitted from the at least one laser array to the fly-eye lens; the fly-eye lens is disposed on a light-output side of the light combining assembly and is configured to homogenize the laser light emitted from the at least one laser array; wherein the fly-eye lens comprises: a substrate; a plurality of first microlenses disposed on a light-incident surface of the substrate; and a plurality of second microlenses disposed on a light-output surface of the substrate.

公开(公告)号：US11811189B1

公开(公告)日：2023-11-07

申请号：US17695510

申请日：2022-03-15

Applicant: KYOCERA SLD Laser, Inc.

Inventor： Vlad Joseph Novotny ,  Troy Trottier ,  James W. Raring ,  Paul Rudy

IPC: G03B21/20 ,  G02B1/11 ,  G03B21/00 ,  H01S5/30 ,  H01L33/64 ,  H01S5/00 ,  H01S5/024 ,  H01S5/40 ,  H01L33/00 ,  H01L27/15

CPC classification number: H01S5/0071 ,  G02B1/11 ,  G03B21/005 ,  G03B21/204 ,  H01S5/0087 ,  H01L27/15 ,  H01L33/0045 ,  H01L33/64 ,  H01S5/02469 ,  H01S5/02476 ,  H01S5/3013 ,  H01S5/4075 ,  H01S5/4087

Abstract: A structured phosphor device includes a frame member that includes wall regions separating multiple openings of window regions. Further, the structured phosphor device includes a phosphor material filled in each of the multiple openings with a first surface thereof being exposed to an excitation light from one or more laser sources to generate an emitted light out of each window region. Additionally, the structured phosphor device includes an anti-reflective film overlying the first surface of the phosphor material. Furthermore, the structured phosphor device includes a substrate attached to a second surface of the phosphor material in each of the multiple openings. Alternatively, the structured phosphor device includes an array of phosphor pixels dividing a plate of single-crystalline or poly-crystalline phosphor material separated by optically reflective and thermally conductive walls. A dynamic lighting system based on the arrays of phosphor pixels for single or full color image projection is also disclosed.

公开(公告)号：US11683473B2

公开(公告)日：2023-06-20

申请号：US17477545

申请日：2021-09-17

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Martin J. Richards

IPC: G09G3/34 ,  G09G5/10 ,  H04N13/398 ,  H04N13/32 ,  H04N13/324 ,  H04N13/365 ,  G02B27/09 ,  G02B27/10 ,  G02B27/14 ,  H04N9/31 ,  G02B19/00 ,  G02B5/02 ,  H04N13/363 ,  G02B5/32 ,  G03B21/00 ,  G03B21/20 ,  G09G3/00 ,  G03H1/12 ,  G03H1/02

CPC classification number: H04N13/398 ,  G02B5/0252 ,  G02B5/32 ,  G02B19/0014 ,  G02B19/0057 ,  G02B27/0905 ,  G02B27/0988 ,  G02B27/1026 ,  G02B27/145 ,  G03B21/005 ,  G03B21/2033 ,  G09G3/3413 ,  G09G3/3426 ,  G09G5/10 ,  H04N9/3126 ,  H04N9/3138 ,  H04N9/3161 ,  H04N9/3164 ,  H04N9/3182 ,  H04N13/32 ,  H04N13/324 ,  H04N13/363 ,  H04N13/365 ,  G03H1/12 ,  G03H2001/0216 ,  G03H2001/0224 ,  G09G3/001 ,  G09G3/346

Abstract: Light from an array of laser light sources are spread to cover the modulating face of a DMD or other modulator. The spread may be performed, for example, by a varying curvature array of lenslets, each laser light directed at one of the lenslets. Light from neighboring and/or nearby light sources overlap at a modulator. The lasers are energized at different energy/brightness levels causing the light illuminating the modulator to itself be modulated (locally dimmed). The modulator then further modulates the locally dimmed lights to produce a desired image. A projector according to the invention may utilize, for example, a single modulator sequentially illuminated or separate primary color modulators simultaneously illuminated.

公开(公告)号：US11681257B2

公开(公告)日：2023-06-20

申请号：US17209747

申请日：2021-03-23

Applicant: Dualitas Ltd

Inventor： Jamieson Christmas

IPC: G03H1/00 ,  G03B21/00 ,  G03H1/02 ,  G03H1/22

CPC classification number: G03H1/0005 ,  G03B21/005 ,  G03H2001/0224 ,  G03H2001/2215 ,  G03H2223/14

Abstract: An image projector arranged to project an image onto a display plane. The image projector comprises a processing engine, a display device, an optical element and a light source. The processing engine outputs a computer-generated diffractive pattern comprising a hologram of an image for projection and a lens function corresponding to a lens having a first optical power. The display device is arranged to display the computer-generated diffractive pattern. The optical element is disposed between the display device to the display plane. The optical element has second optical power. The light source is arranged to provide off-axis illumination of the display device in order to spatially-modulated light in accordance with the hologram and lens function. The lens function of the computer-generated diffractive pattern and the optical element collectively perform a hologram transform of the hologram such that a reconstruction of the image is formed on the display plane.

公开(公告)号：US11669001B2

公开(公告)日：2023-06-06

申请号：US16472272

申请日：2017-06-23

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Yi Li ,  Fei Hu ,  Zuqiang Guo

IPC: G03B21/20 ,  G03B21/00 ,  H04N9/31

CPC classification number: G03B21/2013 ,  G03B21/005 ,  G03B21/206 ,  G03B21/2073 ,  H04N9/3111

Abstract: A projection display system, including light emitting device, light splitting device, first, second and third light modulators. The light emitting device emits first light and second light in time sequence. The light splitting device splits the first and second light into first and second wavelength range light along first and second optical paths, respectively, and guides part of the second light along the first optical path. The first and second light modulators modulate the light along the first and second optical paths, respectively; the light modulated by the first and second light modulators is combined to obtain third light along third optical path. The third light modulator is in optical path between the light emitting device and the light splitting device and modulates the first and second light from the light emitting device; or the third light modulator is in the third optical path and modulates the third light.

公开(公告)号：US11665323B2

公开(公告)日：2023-05-30

申请号：US17487271

申请日：2021-09-28

Applicant: Carl Zeiss Jena GmbH

Inventor： Marco Pretorius

IPC: H04N9/31 ,  G03B21/00 ,  G03B21/28

CPC classification number: H04N9/3126 ,  G03B21/005 ,  G03B21/28

Abstract: A projection system can include a first modulator including a plurality of pixels in a first modulator surface, a second modulator including a plurality of pixels in a second modulator surface, and an intermediate imaging optical unit, which images the first modulator surface onto the second modulator surface, wherein the intermediate imaging optical unit includes a first lens having a convex side and wherein the convex side of the first lens is a free-form surface, which is not spherical and not rotationally symmetric and does not exhibit any mirror symmetry.

公开(公告)号：US20190212195A9

公开(公告)日：2019-07-11

申请号：US15670875

申请日：2017-08-07

Applicant: DigiLens, Inc.

Inventor： Milan Momcilo Popovich ,  Jonathan David Waldern

IPC: G01J3/18 ,  G03B21/00 ,  G02F1/225 ,  H04N9/31 ,  H01L33/10 ,  G02B6/02 ,  G03F7/20

CPC classification number: G01J3/1895 ,  G02B5/1828 ,  G02B5/1842 ,  G02B5/32 ,  G02B6/02076 ,  G02F1/13342 ,  G02F1/133615 ,  G02F1/1347 ,  G02F1/13476 ,  G02F1/225 ,  G02F2203/24 ,  G03B21/005 ,  G03F7/70316 ,  G06F3/0425 ,  H01L33/10 ,  H04N9/3108 ,  H04N9/315 ,  H04N9/3173

Abstract: A projection display device comprising a light source and an SBG device having a multiplicity of separate SBG elements sandwiched between transparent substrates to which transparent electrodes have been applied. The substrates function as a light guide. A least one transparent electrode comprises a plurality of independently switchable transparent electrode elements, each electrode element substantially overlaying a unique SBG element. Each SBG element encodes image information to be projected on an image surface. Light coupled into the light guide undergoes total internal reflection until diffracted out to the light guide by an activated SBG element. The SBG diffracts light out of the light guide to form an image region on an image surface when subjected to an applied voltage via said transparent electrodes.

公开(公告)号：US20190196314A1

公开(公告)日：2019-06-27

申请号：US16289128

申请日：2019-02-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Kensaku MATSUMOTO ,  Kaname NAGATANI

IPC: G03B21/16 ,  F28D15/00 ,  G03B21/00 ,  G02F1/1333

CPC classification number: G03B21/16 ,  F28D15/00 ,  G02F1/133382 ,  G02F2203/01 ,  G03B21/005 ,  G03B21/006 ,  G03B21/145

Abstract: An optical device includes a light modulation device disposed on an optical axis of incident light, and a holding section configured to hold the light modulation device. The holding section includes an inflow part to which a liquid supplied from an outside of the holding section inflows, a flow channel forming part disposed along a circumferential edge of the light modulation device so as to have an annular shape, and having a flow channel through which the liquid flowed from the inflow part circulates, and an outflow part from which the liquid having flowed through the flow channel outflows to the outside of the holding section. At least one of an inside of the inflow part and an inside of the flow channel is provided with at least one projection.

公开(公告)号：US20190098265A1

公开(公告)日：2019-03-28

申请号：US16141296

申请日：2018-09-25

Applicant: CASIO COMPUTER CO., LTD

Inventor： Toru Takahama

IPC: H04N9/31 ,  G03B21/00 ,  H01S5/14 ,  G03B21/20

CPC classification number: H04N9/31 ,  G03B21/005 ,  G03B21/008 ,  G03B21/2033 ,  G03B21/204 ,  G03B33/08 ,  H01S5/141 ,  H04N9/3111

Abstract: An adjustment image for facilitating adjustment is generated. An image display device according to an embodiment of the invention includes a semiconductor laser, a wheel, an adjustment image generating unit, and a projection unit. The semiconductor laser emits light. The wheel includes a first area and a second area as areas for adjusting color components of the light emitted from the semiconductor laser. The adjustment image generating unit generates an adjustment image in which a first color formed using a section adjacent to a boundary between the first area and the second area and a second color formed not using the section adjacent to the boundary and having color components close to the first color are arranged adjacent to each other. The projection unit projects the adjustment image generated by the adjustment image generating unit.

公开(公告)号：US20190056647A1

公开(公告)日：2019-02-21

申请号：US16100397

申请日：2018-08-10

Applicant: FUJIFILM Corporation

Inventor： Masaru AMANO

IPC: G03B21/28 ,  G03B21/00 ,  G03B21/10 ,  G03B21/14 ,  G02B13/18

CPC classification number: G03B21/28 ,  G02B5/10 ,  G02B13/16 ,  G02B13/18 ,  G02B17/08 ,  G03B21/005 ,  G03B21/10 ,  G03B21/147

Abstract: A projection optical system consists of, in order from the magnification side, a first optical system, which consists of one convex mirror and a plurality of lenses disposed on the reduction side of the convex mirror, and a second optical system. The lens closest to the magnification side in the first optical system is a negative lens. Assuming that a paraxial radius of curvature of the convex mirror is Mr and a focal length of the negative lens closest to the magnification side in the first optical system is fL1, Conditional Expression is satisfied: 0