EP2426407A3 - Lighting fixture equipped with a shaped reflector - Google Patents

Lighting fixture equipped with a shaped reflector Download PDF

Info

Publication number
EP2426407A3
EP2426407A3 EP11178794.1A EP11178794A EP2426407A3 EP 2426407 A3 EP2426407 A3 EP 2426407A3 EP 11178794 A EP11178794 A EP 11178794A EP 2426407 A3 EP2426407 A3 EP 2426407A3
Authority
EP
European Patent Office
Prior art keywords
shaped reflector
lighting fixture
illumination
light
shaped
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Withdrawn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
EP11178794.1A
Other languages
German (de)
French (fr)
Other versions
EP2426407A2 (en
Inventor
Ping-Han Chuang
Chia-Mei Peng
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.)
Taiwan Network Computer and Electronic Co Ltd
Original Assignee
Taiwan Network Computer and Electronic Co 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 Taiwan Network Computer and Electronic Co Ltd filed Critical Taiwan Network Computer and Electronic Co Ltd
Publication of EP2426407A2 publication Critical patent/EP2426407A2/en
Publication of EP2426407A3 publication Critical patent/EP2426407A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/04Optical design
    • F21V7/09Optical design with a combination of different curvatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/04Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/04Optical design
    • F21V7/048Optical design with facets structure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/0075Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
    • F21V19/008Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/023Power supplies in a casing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/005Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10Outdoor lighting
    • F21W2131/103Outdoor lighting of streets or roads

Abstract

A lighting fixture includes a light source, a lamp case, a power supply device, a shaped reflector and a prism. The shaped reflector has inwardly curved front and back walls each consisting of multiple conical faces abutted against one another and sloping at different angles. The angle of inclination of one lower conical face is relatively closer toward the center of the shaped reflector than that of the adjacent upper conical face. Thus, the shaped reflector effectively and evenly reflects the light emitted by the light source onto a0 predetermined rectangular or particularly shaped illumination area. Therefore, the lighting fixture is practical for road illumination, lounge illumination, advertizing light box and streamline table light applications to effectively and evenly illuminate the desired area, saving much power consumption.
EP11178794.1A 2010-09-01 2011-08-25 Lighting fixture equipped with a shaped reflector Withdrawn EP2426407A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW99129416 2010-09-01

Publications (2)

Publication Number Publication Date
EP2426407A2 EP2426407A2 (en) 2012-03-07
EP2426407A3 true EP2426407A3 (en) 2013-11-27

Family

ID=44651178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11178794.1A Withdrawn EP2426407A3 (en) 2010-09-01 2011-08-25 Lighting fixture equipped with a shaped reflector

Country Status (3)

Country Link
EP (1) EP2426407A3 (en)
JP (1) JP2012054232A (en)
TW (1) TWI428540B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9715608B2 (en) 2011-12-19 2017-07-25 Symbol Technologies, Llc Method and apparatus for improving radio frequency identification coverage
JP2014007102A (en) * 2012-06-26 2014-01-16 Panasonic Corp Lighting apparatus
JP6277604B2 (en) * 2013-05-31 2018-02-14 岩崎電気株式会社 lighting equipment
JP6263768B2 (en) * 2013-11-05 2018-01-24 岩崎電気株式会社 Light emitting element unit and lighting apparatus
CN109578867A (en) * 2016-12-27 2019-04-05 浙江雷士灯具有限公司 The LED spotlight of double-side
CN112764213B (en) * 2021-01-13 2022-07-29 师大瑞利光电科技(清远)有限公司 Design and processing method of lamp tube reflector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242727A (en) * 1979-03-29 1980-12-30 Gte Products Corporation Luminaire reflector
US5941632A (en) * 1996-03-08 1999-08-24 Thomas & Betts Corporation Roadway luminaire
US20080232102A1 (en) * 2007-03-21 2008-09-25 Thomas & Betts International, Inc. Emergency light fixture having an efficient reflector assembly
EP1978298A2 (en) * 2007-04-07 2008-10-08 Tetsuhiro Kano Reflector for a light

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242727A (en) * 1979-03-29 1980-12-30 Gte Products Corporation Luminaire reflector
US5941632A (en) * 1996-03-08 1999-08-24 Thomas & Betts Corporation Roadway luminaire
US20080232102A1 (en) * 2007-03-21 2008-09-25 Thomas & Betts International, Inc. Emergency light fixture having an efficient reflector assembly
EP1978298A2 (en) * 2007-04-07 2008-10-08 Tetsuhiro Kano Reflector for a light

Also Published As

Publication number Publication date
JP2012054232A (en) 2012-03-15
TW201217696A (en) 2012-05-01
TWI428540B (en) 2014-03-01
EP2426407A2 (en) 2012-03-07

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