GB2589110B - Uniform lighting device - Google Patents

Uniform lighting device Download PDF

Info

Publication number
GB2589110B
GB2589110B GB1916878.0A GB201916878A GB2589110B GB 2589110 B GB2589110 B GB 2589110B GB 201916878 A GB201916878 A GB 201916878A GB 2589110 B GB2589110 B GB 2589110B
Authority
GB
United Kingdom
Prior art keywords
lighting device
uniform lighting
uniform
lighting
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
GB1916878.0A
Other versions
GB2589110A (en
GB201916878D0 (en
Inventor
Gourlay James
Jankauskas Marius
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Design LED Products Ltd
Original Assignee
Design LED Products Ltd
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
Application filed by Design LED Products Ltd filed Critical Design LED Products Ltd
Priority to GB1916878.0A priority Critical patent/GB2589110B/en
Publication of GB201916878D0 publication Critical patent/GB201916878D0/en
Priority to PCT/GB2020/052954 priority patent/WO2021099789A1/en
Publication of GB2589110A publication Critical patent/GB2589110A/en
Application granted granted Critical
Publication of GB2589110B publication Critical patent/GB2589110B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/50—Mounting arrangements
    • B60Q3/54—Lighting devices embedded in interior trim, e.g. in roof liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • B60Q3/74—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for overall compartment lighting; for overall compartment lighting in combination with specific lighting, e.g. room lamps with reading lamps
    • B60Q3/745—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for overall compartment lighting; for overall compartment lighting in combination with specific lighting, e.g. room lamps with reading lamps using lighting panels or mats, e.g. electro-luminescent panels, LED mats
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means 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
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0085—Means for removing heat created by the light source from the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to the light guide

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
GB1916878.0A 2019-11-20 2019-11-20 Uniform lighting device Active GB2589110B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1916878.0A GB2589110B (en) 2019-11-20 2019-11-20 Uniform lighting device
PCT/GB2020/052954 WO2021099789A1 (en) 2019-11-20 2020-11-19 Uniform lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1916878.0A GB2589110B (en) 2019-11-20 2019-11-20 Uniform lighting device

Publications (3)

Publication Number Publication Date
GB201916878D0 GB201916878D0 (en) 2020-01-01
GB2589110A GB2589110A (en) 2021-05-26
GB2589110B true GB2589110B (en) 2022-11-09

Family

ID=69063159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1916878.0A Active GB2589110B (en) 2019-11-20 2019-11-20 Uniform lighting device

Country Status (2)

Country Link
GB (1) GB2589110B (en)
WO (1) WO2021099789A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3129330B1 (en) * 2021-11-23 2024-02-09 Faurecia Interieur Ind Trim element with switchable backlit areas

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533633A1 (en) * 2003-11-21 2005-05-25 Kabushiki Kaisha Toyota Jidoshokki Planar lighting device
KR20060041140A (en) * 2004-11-08 2006-05-11 삼성전기주식회사 Backlight apparatus having leds
EP2463706A1 (en) * 2010-12-13 2012-06-13 Hitachi Consumer Electronics Co., Ltd. Back light unit and display apparatus using the same
WO2012091255A1 (en) * 2010-12-28 2012-07-05 Lg Electronics Inc. Display apparatus
US20140211503A1 (en) * 2013-01-30 2014-07-31 Cree, Inc. Waveguide bodies including redirection features and methods of producing same
WO2020101517A1 (en) * 2018-11-12 2020-05-22 Corning Incorporated Backlight including patterned reflectors and method for fabricating the backlight
WO2021041202A1 (en) * 2019-08-23 2021-03-04 Reald Spark, Llc Directional illumination apparatus and privacy display
EP3938702A1 (en) * 2019-05-03 2022-01-19 HIB Trim Part Solutions GmbH Uniformly illuminable decorative part

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI257015B (en) 2002-12-20 2006-06-21 Hon Hai Prec Ind Co Ltd Light guide plate and back light system with the same
GB2438440B (en) 2006-05-26 2008-04-23 Design Led Products Ltd A composite light guiding device
US7791683B2 (en) * 2007-11-19 2010-09-07 Honeywell International Inc. Backlight systems for liquid crystal displays
WO2010123284A2 (en) * 2009-04-21 2010-10-28 Lg Electronics Inc. Light emitting device
JP6184770B2 (en) * 2012-06-27 2017-08-23 エルジー イノテック カンパニー リミテッド Lighting device
KR101710520B1 (en) * 2015-10-02 2017-02-27 한국과학기술원 Backlight unit capable of local dimming
JP6903077B2 (en) * 2016-04-13 2021-07-14 タクトテク オーユー Illumination multilayer structure with an embedded light source

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533633A1 (en) * 2003-11-21 2005-05-25 Kabushiki Kaisha Toyota Jidoshokki Planar lighting device
KR20060041140A (en) * 2004-11-08 2006-05-11 삼성전기주식회사 Backlight apparatus having leds
EP2463706A1 (en) * 2010-12-13 2012-06-13 Hitachi Consumer Electronics Co., Ltd. Back light unit and display apparatus using the same
WO2012091255A1 (en) * 2010-12-28 2012-07-05 Lg Electronics Inc. Display apparatus
US20140211503A1 (en) * 2013-01-30 2014-07-31 Cree, Inc. Waveguide bodies including redirection features and methods of producing same
WO2020101517A1 (en) * 2018-11-12 2020-05-22 Corning Incorporated Backlight including patterned reflectors and method for fabricating the backlight
EP3938702A1 (en) * 2019-05-03 2022-01-19 HIB Trim Part Solutions GmbH Uniformly illuminable decorative part
WO2021041202A1 (en) * 2019-08-23 2021-03-04 Reald Spark, Llc Directional illumination apparatus and privacy display

Also Published As

Publication number Publication date
GB2589110A (en) 2021-05-26
GB201916878D0 (en) 2020-01-01
WO2021099789A1 (en) 2021-05-27

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