WO2011127481A3 - On-camera led fresnel lighting system including active cooling - Google Patents

On-camera led fresnel lighting system including active cooling Download PDF

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Publication number
WO2011127481A3
WO2011127481A3 PCT/US2011/031990 US2011031990W WO2011127481A3 WO 2011127481 A3 WO2011127481 A3 WO 2011127481A3 US 2011031990 W US2011031990 W US 2011031990W WO 2011127481 A3 WO2011127481 A3 WO 2011127481A3
Authority
WO
WIPO (PCT)
Prior art keywords
housing
power supply
active cooling
led engine
led
Prior art date
Application number
PCT/US2011/031990
Other languages
French (fr)
Other versions
WO2011127481A2 (en
Inventor
Kevin C. Baxter
Fred H. Holmes
Ken Fisher
Original Assignee
Litepanels, 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 Litepanels, Ltd. filed Critical Litepanels, Ltd.
Publication of WO2011127481A2 publication Critical patent/WO2011127481A2/en
Publication of WO2011127481A3 publication Critical patent/WO2011127481A3/en

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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F21V29/677—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for discharging
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/04—Combinations of cameras with non-electronic flash apparatus; Non-electronic flash units
    • G03B15/0442—Constructional details of the flash apparatus; Arrangement of lamps, reflectors, or the like
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
    • 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
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A lighting apparatus for film, television, video capture, motion picture and photography which includes a Fresnel lens ( 725 ) fixed in a housing ( 710 ) which contains a tight array of high power LEDs. The LED panel ( 750 ) or board is mated to a heat dissipating apparatus to provide active cooling and together forming an LED engine ( 100 ). The LED engine is mounted to a slider ( 780 ) allowing the LED engine to be adjusted within the housing with respect to the lens. Light shaping diffusion may be included on the housing. A power supply unit may also be included in the housing. When in electrical communication, the LED engine and power supply unit function as an integrated self- contained lighting apparatus. Optionally, the power supply may have an integrated dimmer switch, and may be capable of receiving PFC power or have an integrated battery unit.
PCT/US2011/031990 2010-04-09 2011-04-11 On-camera led fresnel lighting system including active cooling WO2011127481A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32276010P 2010-04-09 2010-04-09
US61/322,760 2010-04-09

Publications (2)

Publication Number Publication Date
WO2011127481A2 WO2011127481A2 (en) 2011-10-13
WO2011127481A3 true WO2011127481A3 (en) 2012-03-08

Family

ID=44584844

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/031990 WO2011127481A2 (en) 2010-04-09 2011-04-11 On-camera led fresnel lighting system including active cooling

Country Status (1)

Country Link
WO (1) WO2011127481A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011116031A2 (en) 2010-03-15 2011-09-22 Litepanels, Ltd Led fresnel lighting system including active cooling
US10006609B2 (en) 2011-04-08 2018-06-26 Litepanels, Ltd. Plug compatible LED replacement for incandescent light
WO2014161554A2 (en) * 2013-04-05 2014-10-09 Digital Sputnik Lighting Oü Lighting device and system for wireless calibration and controlling of lighting device
CN105508931A (en) * 2015-12-31 2016-04-20 常乐 Photo illumination lamp
WO2021094280A1 (en) 2019-11-13 2021-05-20 Signify Holding B.V. Lighting device
DE102019134028A1 (en) * 2019-12-11 2021-06-17 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Equipment system for cinematographic productions

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023709A (en) * 1989-11-06 1991-06-11 Aoi Studio Kabushiki Kaisha Automatic follow-up lighting system
US20040120156A1 (en) * 2002-12-24 2004-06-24 Ryan John T. Peltier-cooled LED lighting assembly
WO2006113745A2 (en) * 2005-04-18 2006-10-26 Contrast Lighting Services, Inc. Lighting apparatus with adjustable lenses or filters
EP1998108A1 (en) * 2007-05-30 2008-12-03 Osram Gesellschaft mit Beschränkter Haftung Cooling apparatus
WO2009033051A1 (en) * 2007-09-07 2009-03-12 Philips Solid-State Lighting Solutions Methods and apparatus for providing led-based spotlight illumination in stage lighting applications
US20090129092A1 (en) * 2007-11-21 2009-05-21 Shyh-Ming Chen Heat convection dissipater for led lamp
US20090296386A1 (en) * 2008-05-28 2009-12-03 Trend Lighting Corp. Led illuminator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7604361B2 (en) 2001-09-07 2009-10-20 Litepanels Llc Versatile lighting apparatus and associated kit
US7569996B2 (en) 2004-03-19 2009-08-04 Fred H Holmes Omni voltage direct current power supply

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023709A (en) * 1989-11-06 1991-06-11 Aoi Studio Kabushiki Kaisha Automatic follow-up lighting system
US20040120156A1 (en) * 2002-12-24 2004-06-24 Ryan John T. Peltier-cooled LED lighting assembly
WO2006113745A2 (en) * 2005-04-18 2006-10-26 Contrast Lighting Services, Inc. Lighting apparatus with adjustable lenses or filters
EP1998108A1 (en) * 2007-05-30 2008-12-03 Osram Gesellschaft mit Beschränkter Haftung Cooling apparatus
WO2009033051A1 (en) * 2007-09-07 2009-03-12 Philips Solid-State Lighting Solutions Methods and apparatus for providing led-based spotlight illumination in stage lighting applications
US20090129092A1 (en) * 2007-11-21 2009-05-21 Shyh-Ming Chen Heat convection dissipater for led lamp
US20090296386A1 (en) * 2008-05-28 2009-12-03 Trend Lighting Corp. Led illuminator

Also Published As

Publication number Publication date
WO2011127481A2 (en) 2011-10-13

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