EP2917780A4 - Light diffusion device - Google Patents

Light diffusion device

Info

Publication number
EP2917780A4
EP2917780A4 EP14853132.0A EP14853132A EP2917780A4 EP 2917780 A4 EP2917780 A4 EP 2917780A4 EP 14853132 A EP14853132 A EP 14853132A EP 2917780 A4 EP2917780 A4 EP 2917780A4
Authority
EP
European Patent Office
Prior art keywords
light diffusion
diffusion device
light
diffusion
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.)
Withdrawn
Application number
EP14853132.0A
Other languages
German (de)
French (fr)
Other versions
EP2917780A1 (en
Inventor
Dean Ekkaia
Richard Wimmer
Frank Halasz
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.)
LELLAN Inc
Original Assignee
LELLAN Inc
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 LELLAN Inc filed Critical LELLAN Inc
Publication of EP2917780A1 publication Critical patent/EP2917780A1/en
Publication of EP2917780A4 publication Critical patent/EP2917780A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • F21V7/0033—Combination of two or more reflectors for a single light source with successive reflections from one reflector to the next or following
    • F21V7/0041—Combination of two or more reflectors for a single light source with successive reflections from one reflector to the next or following for avoiding direct view of the light source or to prevent dazzling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)
EP14853132.0A 2014-02-10 2014-02-10 Light diffusion device Withdrawn EP2917780A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2014/015573 WO2015119633A1 (en) 2014-02-10 2014-02-10 Light diffusion device

Publications (2)

Publication Number Publication Date
EP2917780A1 EP2917780A1 (en) 2015-09-16
EP2917780A4 true EP2917780A4 (en) 2016-04-13

Family

ID=53778311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14853132.0A Withdrawn EP2917780A4 (en) 2014-02-10 2014-02-10 Light diffusion device

Country Status (3)

Country Link
EP (1) EP2917780A4 (en)
CN (1) CN106030386A (en)
WO (1) WO2015119633A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168692A (en) * 2017-12-27 2018-06-15 中国科学院长春光学精密机械与物理研究所 A kind of hot spot uniformity measuring system and its control method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020039292A1 (en) * 2000-09-29 2002-04-04 Hirokazu Matsui Backlight illuminator
EP1496488A1 (en) * 2002-04-17 2005-01-12 Kabushiki Kaisha Box Surface light emitting device
US20070002565A1 (en) * 2005-06-30 2007-01-04 Lg.Philips Lcd Co., Ltd. Backlight unit
EP2187113A1 (en) * 2008-11-18 2010-05-19 Toshiba Lighting & Technology Corporation Lighting device including translucent cover for diffusing light from light source
US20110128733A1 (en) * 2009-11-27 2011-06-02 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp
EP2672174A1 (en) * 2012-06-08 2013-12-11 Hurst + Schröder GmbH Illumination device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2397875A3 (en) * 2001-12-14 2012-05-02 QUALCOMM MEMS Technologies, Inc. Uniform illumination system
EA029832B1 (en) * 2008-01-28 2018-05-31 Реалд Инк. Polarization preserving front projection screen
CN102089703B (en) * 2008-06-13 2013-10-16 3M创新有限公司 Illumination device with progressive injection
CN102062350A (en) * 2010-11-18 2011-05-18 鸿富锦精密工业（深圳）有限公司 Light distribution device of LED (light-emitting diode) light source
US20120300456A1 (en) * 2011-05-26 2012-11-29 Phillips Iii William E Reflectors optimized for led lighting fixture

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020039292A1 (en) * 2000-09-29 2002-04-04 Hirokazu Matsui Backlight illuminator
EP1496488A1 (en) * 2002-04-17 2005-01-12 Kabushiki Kaisha Box Surface light emitting device
US20070002565A1 (en) * 2005-06-30 2007-01-04 Lg.Philips Lcd Co., Ltd. Backlight unit
EP2187113A1 (en) * 2008-11-18 2010-05-19 Toshiba Lighting & Technology Corporation Lighting device including translucent cover for diffusing light from light source
US20110128733A1 (en) * 2009-11-27 2011-06-02 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp
EP2672174A1 (en) * 2012-06-08 2013-12-11 Hurst + Schröder GmbH Illumination device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2015119633A1 *

Also Published As

Publication number Publication date
CN106030386A (en) 2016-10-12
EP2917780A1 (en) 2015-09-16
WO2015119633A1 (en) 2015-08-13

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Legal Events

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RIC1 Information provided on ipc code assigned before grant

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Inventor name: WIMMER, RICHARD

Inventor name: HALASZ, FRANK

Inventor name: EKKAIA, DEAN

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Effective date: 20160205

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Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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