GB2190735B - Light fittings - Google Patents

Light fittings

Info

Publication number
GB2190735B
GB2190735B GB8613817A GB8613817A GB2190735B GB 2190735 B GB2190735 B GB 2190735B GB 8613817 A GB8613817 A GB 8613817A GB 8613817 A GB8613817 A GB 8613817A GB 2190735 B GB2190735 B GB 2190735B
Authority
GB
United Kingdom
Prior art keywords
light fittings
fittings
light
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.)
Expired
Application number
GB8613817A
Other versions
GB8613817D0 (en
GB2190735A (en
Inventor
Alan Alexander Stone
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Priority to GB8613817A priority Critical patent/GB2190735B/en
Publication of GB8613817D0 publication Critical patent/GB8613817D0/en
Publication of GB2190735A publication Critical patent/GB2190735A/en
Application granted granted Critical
Publication of GB2190735B publication Critical patent/GB2190735B/en
Expired 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/104—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using feather joints, e.g. tongues and grooves, with or without friction
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement 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
    • 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
    • F21W2131/20—Lighting for medical use
    • F21W2131/208—Lighting for medical use for hospital wards
    • 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
    • F21W2131/405—Lighting for industrial, commercial, recreational or military use for shop-windows or displays
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
GB8613817A 1986-06-06 1986-06-06 Light fittings Expired GB2190735B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8613817A GB2190735B (en) 1986-06-06 1986-06-06 Light fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8613817A GB2190735B (en) 1986-06-06 1986-06-06 Light fittings

Publications (3)

Publication Number Publication Date
GB8613817D0 GB8613817D0 (en) 1986-07-09
GB2190735A GB2190735A (en) 1987-11-25
GB2190735B true GB2190735B (en) 1989-12-13

Family

ID=10599069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8613817A Expired GB2190735B (en) 1986-06-06 1986-06-06 Light fittings

Country Status (1)

Country Link
GB (1) GB2190735B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4907143A (en) * 1988-11-18 1990-03-06 Columbia Lighting, Inc. Reflector system for fluorescent troffer
GB2360353B (en) * 2000-03-18 2004-09-01 Thorpe F W Plc Lamp assembly
DE102004017686A1 (en) 2004-04-10 2005-11-03 Trilux-Lenze Gmbh + Co Kg Ergonomic ceiling light
FR2986306B1 (en) * 2012-01-31 2018-02-09 Automotive Lighting Rear Lamps France LED LIGHTING DEVICE WITH DIFFUSER SYSTEM

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB545358A (en) * 1940-11-20 1942-05-21 Guy Campbell Improvements in or relating to semi-indirect lighting fittings
GB668500A (en) * 1949-09-08 1952-03-19 Pittsburgh Reflector Company Improvements in or relating to luminaires
GB670205A (en) * 1949-07-27 1952-04-16 R & A G Crossland Ltd Improvements relating to electric lamp housings
GB871007A (en) * 1959-03-20 1961-06-21 Revo Electric Co Ltd Electric lighting fittings
GB1408955A (en) * 1971-11-25 1975-10-08 Itt Illumination apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB545358A (en) * 1940-11-20 1942-05-21 Guy Campbell Improvements in or relating to semi-indirect lighting fittings
GB670205A (en) * 1949-07-27 1952-04-16 R & A G Crossland Ltd Improvements relating to electric lamp housings
GB668500A (en) * 1949-09-08 1952-03-19 Pittsburgh Reflector Company Improvements in or relating to luminaires
GB871007A (en) * 1959-03-20 1961-06-21 Revo Electric Co Ltd Electric lighting fittings
GB1408955A (en) * 1971-11-25 1975-10-08 Itt Illumination apparatus

Also Published As

Publication number Publication date
GB8613817D0 (en) 1986-07-09
GB2190735A (en) 1987-11-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920606