WO2005104068A3 - Channel letter lighting system using high output white light emitting diodes - Google Patents

Channel letter lighting system using high output white light emitting diodes Download PDF

Info

Publication number
WO2005104068A3
WO2005104068A3 PCT/US2005/012822 US2005012822W WO2005104068A3 WO 2005104068 A3 WO2005104068 A3 WO 2005104068A3 US 2005012822 W US2005012822 W US 2005012822W WO 2005104068 A3 WO2005104068 A3 WO 2005104068A3
Authority
WO
WIPO (PCT)
Prior art keywords
light emitting
housing
channel letter
pcb
emitting diodes
Prior art date
Application number
PCT/US2005/012822
Other languages
French (fr)
Other versions
WO2005104068A2 (en
Inventor
Thomas C Sloan
Bruce Quaal
Original Assignee
Sloanled 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 Sloanled Inc filed Critical Sloanled Inc
Priority to EP05735893.9A priority Critical patent/EP1751732B1/en
Publication of WO2005104068A2 publication Critical patent/WO2005104068A2/en
Publication of WO2005104068A3 publication Critical patent/WO2005104068A3/en

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0404—Signs, boards or panels, illuminated from behind the insignia the light source being enclosed in a box forming the character of the sign
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • 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]

Abstract

A channel letter lighting system according to the present invention comprising a channel letter housing with a translucent channel letter cover. A plurality of electrically connected lighting units are mounted to the channel letter housing and conductors provide an electrical signal to each of the units. Each of the units comprises a lighting unit housing and a printed circuit board (PCB) mounted within said housing. The PCB has a plurality of light emitting elements, such as light emitting diodes, with the electrical signal applied to the light emitting elements causing them to generate light substantially away from the housing. The PCB conducts and dissipates heat from the light emitting elements, the unit further comprises a space between most of the PCB and the lighting unit housing to allow heat from the PCB to dissipate into the surrounding ambient. A mounting mechanism is included for each unit to the channel letter housing.
PCT/US2005/012822 2004-04-14 2005-04-14 Channel letter lighting system using high output white light emitting diodes WO2005104068A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05735893.9A EP1751732B1 (en) 2004-04-14 2005-04-14 Channel letter lighting system using high output white light emitting diodes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56248304P 2004-04-14 2004-04-14
US60/562,483 2004-04-14

Publications (2)

Publication Number Publication Date
WO2005104068A2 WO2005104068A2 (en) 2005-11-03
WO2005104068A3 true WO2005104068A3 (en) 2006-04-20

Family

ID=35197618

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/012822 WO2005104068A2 (en) 2004-04-14 2005-04-14 Channel letter lighting system using high output white light emitting diodes

Country Status (2)

Country Link
EP (1) EP1751732B1 (en)
WO (1) WO2005104068A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008016549U1 (en) * 2008-06-13 2009-04-23 Maier, Adolf LEDs chain

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020176250A1 (en) * 2001-05-26 2002-11-28 Gelcore, Llc High power led power pack for spot module illumination
US20030021115A1 (en) * 2001-07-25 2003-01-30 Sloan Thomas C. Perimeter lighting apparatus
US20030063463A1 (en) * 2001-10-01 2003-04-03 Sloanled, Inc. Channel letter lighting using light emitting diodes
US20030210546A1 (en) * 2002-05-13 2003-11-13 Unity Opto Technology Co., Ltd. Energy efficient tubular light

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020176250A1 (en) * 2001-05-26 2002-11-28 Gelcore, Llc High power led power pack for spot module illumination
US20030021115A1 (en) * 2001-07-25 2003-01-30 Sloan Thomas C. Perimeter lighting apparatus
US20030063463A1 (en) * 2001-10-01 2003-04-03 Sloanled, Inc. Channel letter lighting using light emitting diodes
US20030210546A1 (en) * 2002-05-13 2003-11-13 Unity Opto Technology Co., Ltd. Energy efficient tubular light

Also Published As

Publication number Publication date
WO2005104068A2 (en) 2005-11-03
EP1751732B1 (en) 2014-11-19
EP1751732A2 (en) 2007-02-14

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