GB593235A - Improvements in and relating to light fittings for ceilings designed for acoustical purposes - Google Patents

Improvements in and relating to light fittings for ceilings designed for acoustical purposes

Info

Publication number
GB593235A
GB593235A GB18526/45A GB1852645A GB593235A GB 593235 A GB593235 A GB 593235A GB 18526/45 A GB18526/45 A GB 18526/45A GB 1852645 A GB1852645 A GB 1852645A GB 593235 A GB593235 A GB 593235A
Authority
GB
United Kingdom
Prior art keywords
ceilings
relating
designed
light fittings
holophane
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
GB18526/45A
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.)
Holophane Corp
Original Assignee
Holophane Corp
Filing date
Publication date
Application filed by Holophane Corp filed Critical Holophane Corp
Publication of GB593235A publication Critical patent/GB593235A/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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/001—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by provisions for heat or sound insulation
    • 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
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • 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

Abstract

593,235. Reflectors. HOLOPHANE, Ltd. (Holophane Co., Inc.). July 19, 1945, No. 18526. [Classes 75 (ii) and 75 (iii)] [Also in Group XXXVIII] A ceiling faced with sound - absorbing material 10 is fitted with rows of fluorescent lamps 14 mounted in metal boxes 13 which are lined with sound - absorbing material 15 such as light reflecting glass wool slabs and are arranged above perforated transparent or translucent plates 12.
GB18526/45A 1945-07-19 Improvements in and relating to light fittings for ceilings designed for acoustical purposes Expired GB593235A (en)

Publications (1)

Publication Number Publication Date
GB593235A true GB593235A (en) 1947-10-10

Family

ID=1733986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18526/45A Expired GB593235A (en) 1945-07-19 Improvements in and relating to light fittings for ceilings designed for acoustical purposes

Country Status (1)

Country Link
GB (1) GB593235A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659808A (en) * 1949-06-22 1953-11-17 F W Wakefield Brass Company Combination luminous and acoustical ceiling
US2715449A (en) * 1949-12-12 1955-08-16 Carl W Lemmerman Combined lighting and sound absorbing fixture
US2759094A (en) * 1953-12-28 1956-08-14 Sylvania Electric Prod Lighting and sound absorbing fixture
US2759093A (en) * 1953-12-28 1956-08-14 Sylvania Electric Prod Lighting and sound absorbing fixture
US2817752A (en) * 1956-01-30 1957-12-24 Lightolier Inc Lighting system and ceiling panel
US2830330A (en) * 1953-06-25 1958-04-15 Heath Wilfrid Paul Means for acoustical correction and noise absorption
US2927994A (en) * 1957-04-12 1960-03-08 Edwin F Guth Company Light diffusors for illuminating devices
US2960604A (en) * 1957-04-12 1960-11-15 Edwin F Guth Company Light diffusors for illuminating devices
US3210534A (en) * 1962-07-20 1965-10-05 Ernest J Kump Environmental control system
US3483944A (en) * 1966-09-09 1969-12-16 John W Handy Jr Acoustic structure
US5128850A (en) * 1990-11-23 1992-07-07 Uosis Juodvalkis Decorative cover for ceiling mounted light
WO2003056233A1 (en) * 2001-12-21 2003-07-10 Environmental Seals Ltd Covers for electrical fittings
WO2003056239A1 (en) * 2001-12-21 2003-07-10 Environmental Seals Ltd Covers for electric fittings
ES2327592A1 (en) * 2007-06-07 2009-10-30 Universidad De La Rioja Roof with variable acoustic absorption (Machine-translation by Google Translate, not legally binding)
WO2012042429A3 (en) * 2010-09-30 2012-06-07 Koninklijke Philips Electronics N.V. Illumination device and luminaire

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659808A (en) * 1949-06-22 1953-11-17 F W Wakefield Brass Company Combination luminous and acoustical ceiling
US2715449A (en) * 1949-12-12 1955-08-16 Carl W Lemmerman Combined lighting and sound absorbing fixture
US2830330A (en) * 1953-06-25 1958-04-15 Heath Wilfrid Paul Means for acoustical correction and noise absorption
US2759094A (en) * 1953-12-28 1956-08-14 Sylvania Electric Prod Lighting and sound absorbing fixture
US2759093A (en) * 1953-12-28 1956-08-14 Sylvania Electric Prod Lighting and sound absorbing fixture
US2817752A (en) * 1956-01-30 1957-12-24 Lightolier Inc Lighting system and ceiling panel
US2927994A (en) * 1957-04-12 1960-03-08 Edwin F Guth Company Light diffusors for illuminating devices
US2960604A (en) * 1957-04-12 1960-11-15 Edwin F Guth Company Light diffusors for illuminating devices
US3210534A (en) * 1962-07-20 1965-10-05 Ernest J Kump Environmental control system
US3483944A (en) * 1966-09-09 1969-12-16 John W Handy Jr Acoustic structure
US5128850A (en) * 1990-11-23 1992-07-07 Uosis Juodvalkis Decorative cover for ceiling mounted light
WO2003056233A1 (en) * 2001-12-21 2003-07-10 Environmental Seals Ltd Covers for electrical fittings
WO2003056239A1 (en) * 2001-12-21 2003-07-10 Environmental Seals Ltd Covers for electric fittings
ES2327592A1 (en) * 2007-06-07 2009-10-30 Universidad De La Rioja Roof with variable acoustic absorption (Machine-translation by Google Translate, not legally binding)
WO2012042429A3 (en) * 2010-09-30 2012-06-07 Koninklijke Philips Electronics N.V. Illumination device and luminaire
EP2792936A3 (en) * 2010-09-30 2014-12-31 Koninklijke Philips N.V. Illumination device
US10030850B2 (en) 2010-09-30 2018-07-24 Philips Lighting Holding B.V. Illumination device and luminaire

Similar Documents

Publication Publication Date Title
GB593235A (en) Improvements in and relating to light fittings for ceilings designed for acoustical purposes
US2759094A (en) Lighting and sound absorbing fixture
GB556218A (en) Improvements in or relating to the indirect lighting of buildings through the roofs and walls thereof
CA480452A (en) Suspended ceiling with recessed lighting fixture
GB603110A (en) Improvements relating to the illumination of rooms and other structures
GB520114A (en) Improvements in or relating to lighting fittings
CA484755A (en) Troffer for fluorescent lighting fixtures readily attached to the framework of a ceiling
GB554615A (en) Improvements in or relating to means for illumination
GB494724A (en) Improvements in or relating to electric lighting fixtures or fitments for cabins, rooms and similar interiors
GB607923A (en) Improvements in and relating to light reflectors and deflectors
GB491257A (en) Improvements in or relating to lighting fittings
GB402633A (en) Improvements in or relating to compound transparent or translucent materials
GB209201A (en) Improvements in and relating to the illumination of rooms & the like by external sources of light
ES206222A3 (en) A lightweight without shadow (Machine-translation by Google Translate, not legally binding)
GB634976A (en) Improvements in lighting or lantern fittings for use in connection with a horizontally disposed linear light source
GB860619A (en) Improvements relating to lighting fittings
GB760885A (en) A lamp for the illumination of surgical operations
CA483771A (en) Fluorescent lighting luminaires
GB405016A (en) Improvements in or relating to devices for distributing artificial light
GR12661B (en) CONVERTING SYSTEM OF COOKING GAS GAS IN LIGHTING LAMP.
CA462685A (en) Street lighting luminaire and refractor therefor
GB718575A (en) Improvements in or relating to gas lighting apparatus
CA527891A (en) Fluorescent lighting fixture reflector support
GB439112A (en) Improvements in or relating to artificial lighting
ES195604A1 (en) A SYSTEM FOR THE USE OF REFLECTOR LIGHTING SCREENS THAT USE SOLAR OR ARTIFICIAL LIGHT