FI129359B - Diffractive grating - Google Patents

Diffractive grating Download PDF

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Publication number
FI129359B
FI129359B FI20185294A FI20185294A FI129359B FI 129359 B FI129359 B FI 129359B FI 20185294 A FI20185294 A FI 20185294A FI 20185294 A FI20185294 A FI 20185294A FI 129359 B FI129359 B FI 129359B
Authority
FI
Finland
Prior art keywords
waveguide
grating
different
stack
wavelengths
Prior art date
Application number
FI20185294A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI20185294A1 (en
Inventor
Jussi Rahomäki
Kasimir Blomstedt
Ismo Vartiainen
Original Assignee
Dispelix Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FI20185294A priority Critical patent/FI129359B/en
Application filed by Dispelix Oy filed Critical Dispelix Oy
Priority to PCT/FI2019/050149 priority patent/WO2019185975A1/en
Priority to EP19774459.2A priority patent/EP3732530B1/en
Priority to CN201980010969.8A priority patent/CN111670403B/zh
Priority to JP2020545653A priority patent/JP7587821B2/ja
Priority to CA3095242A priority patent/CA3095242A1/en
Priority to KR1020207023667A priority patent/KR102733556B1/ko
Priority to SG11202008106PA priority patent/SG11202008106PA/en
Priority to US17/041,308 priority patent/US12032182B2/en
Publication of FI20185294A1 publication Critical patent/FI20185294A1/en
Application granted granted Critical
Publication of FI129359B publication Critical patent/FI129359B/en

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1814Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/0101Head-up displays characterised by optical features
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10Beam splitting or combining systems
    • G02B27/1006Beam splitting or combining systems for splitting or combining different wavelengths
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10Beam splitting or combining systems
    • G02B27/1086Beam splitting or combining systems operating by diffraction only
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4272Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1814Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
    • G02B5/1819Plural gratings positioned on the same surface, e.g. array of gratings
    • G02B5/1823Plural gratings positioned on the same surface, e.g. array of gratings in an overlapping or superposed manner
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1847Manufacturing methods
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1861Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1866Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • G02B5/1871Transmissive phase gratings
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/20Filters
    • G02B5/203Filters having holographic or diffractive elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/0035Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075Arrangements of multiple light guides
    • G02B6/0076Stacked arrangements of multiple light guides of the same or different cross-sectional area
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/34Optical coupling means utilising prism or grating
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/0101Head-up displays characterised by optical features
    • G02B2027/0112Head-up displays characterised by optical features comprising device for genereting colour display
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/0101Head-up displays characterised by optical features
    • G02B2027/0112Head-up displays characterised by optical features comprising device for genereting colour display
    • G02B2027/0114Head-up displays characterised by optical features comprising device for genereting colour display comprising dichroic elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/017Head mounted
    • G02B27/0172Head mounted characterised by optical features
    • G02B2027/0174Head mounted characterised by optical features holographic
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/017Head mounted
    • G02B27/0172Head mounted characterised by optical features
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4294Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect in multispectral systems, e.g. UV and visible

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
FI20185294A 2018-03-28 2018-03-28 Diffractive grating FI129359B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FI20185294A FI129359B (en) 2018-03-28 2018-03-28 Diffractive grating
EP19774459.2A EP3732530B1 (en) 2018-03-28 2019-02-25 Diffractive grating
CN201980010969.8A CN111670403B (zh) 2018-03-28 2019-02-25 衍射光栅
JP2020545653A JP7587821B2 (ja) 2018-03-28 2019-02-25 回折格子
PCT/FI2019/050149 WO2019185975A1 (en) 2018-03-28 2019-02-25 Diffractive grating
CA3095242A CA3095242A1 (en) 2018-03-28 2019-02-25 Diffractive grating
KR1020207023667A KR102733556B1 (ko) 2018-03-28 2019-02-25 회절 격자
SG11202008106PA SG11202008106PA (en) 2018-03-28 2019-02-25 Diffractive grating
US17/041,308 US12032182B2 (en) 2018-03-28 2019-02-25 Diffractive grating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20185294A FI129359B (en) 2018-03-28 2018-03-28 Diffractive grating

Publications (2)

Publication Number Publication Date
FI20185294A1 FI20185294A1 (en) 2019-09-29
FI129359B true FI129359B (en) 2021-12-31

Family

ID=68060972

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20185294A FI129359B (en) 2018-03-28 2018-03-28 Diffractive grating

Country Status (9)

Country Link
US (1) US12032182B2 (https=)
EP (1) EP3732530B1 (https=)
JP (1) JP7587821B2 (https=)
KR (1) KR102733556B1 (https=)
CN (1) CN111670403B (https=)
CA (1) CA3095242A1 (https=)
FI (1) FI129359B (https=)
SG (1) SG11202008106PA (https=)
WO (1) WO2019185975A1 (https=)

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Also Published As

Publication number Publication date
EP3732530A1 (en) 2020-11-04
JP2021516779A (ja) 2021-07-08
WO2019185975A1 (en) 2019-10-03
FI20185294A1 (en) 2019-09-29
CN111670403B (zh) 2022-04-08
SG11202008106PA (en) 2020-09-29
EP3732530C0 (en) 2023-07-26
EP3732530B1 (en) 2023-07-26
KR102733556B1 (ko) 2024-11-26
US12032182B2 (en) 2024-07-09
US20210080628A1 (en) 2021-03-18
CA3095242A1 (en) 2019-10-03
CN111670403A (zh) 2020-09-15
JP7587821B2 (ja) 2024-11-21
EP3732530A4 (en) 2021-09-15
KR20200136887A (ko) 2020-12-08

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