GB477560A - Improvements in or relating to electric lighting units - Google Patents

Improvements in or relating to electric lighting units

Info

Publication number
GB477560A
GB477560A GB19804/36A GB1980436A GB477560A GB 477560 A GB477560 A GB 477560A GB 19804/36 A GB19804/36 A GB 19804/36A GB 1980436 A GB1980436 A GB 1980436A GB 477560 A GB477560 A GB 477560A
Authority
GB
United Kingdom
Prior art keywords
reflectors
source
stops
light
opposite sides
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
GB19804/36A
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.)
Revo Electric Co Ltd
Original Assignee
Revo Electric 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 Revo Electric Co Ltd filed Critical Revo Electric Co Ltd
Priority to GB19804/36A priority Critical patent/GB477560A/en
Publication of GB477560A publication Critical patent/GB477560A/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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane
    • 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
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • 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
    • F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
    • 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
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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

477,560. Street &c. lamps. REVO ELECTRIC CO., Ltd., and REEVES, F. H. July 17, 1936, No. 19804. [Classes 75 (ii) and 75 (iv)] In a lighting unit, more particularly for street lighting, comprising an elongated source disposed horizontally beneath an open lantern incorporating a pair of overhead reflectors i<1>, i<2> and a lower reflecting device for directing light on to the upper reflectors, the lower reflecting device comprises a pair of separate lower reflectors k<1>, k<2> spaced apart on opposite sides of the source so as to permit direct downward emission of light but prevent glare within spaced zones on opposite sides of the unit. The lantern structure includes end frames c<1> and c<2>, tie rods d and f and a cover b. The end frame c<1> carries a lamp holder e and from the rod f is suspended a longitudinally adjustable cage g having springs h for supporting the free end of the lamp. The reflectors k<1> and k<2> are supported between pairs of brackets c<4> and c<5> incorporated in the end frames and may be mounted, as shown in Fig. 2, resting in the lower of two sets of slots c<10>, c<11> and on the upper of two sets of stops c<8>, c<9> so as to reflect light from the source on to the upper reflectors or in the upper slots and on the lower stops so as to reflect light from the source downwardly and outwardly. Double-armed lever catches n<1> and n<2> operated by rotatable spring plungers o<1> and o<2> and co-operating with stops p<1> and p<2> serve to hold lower reflectors in either position.
GB19804/36A 1936-07-17 1936-07-17 Improvements in or relating to electric lighting units Expired GB477560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB19804/36A GB477560A (en) 1936-07-17 1936-07-17 Improvements in or relating to electric lighting units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19804/36A GB477560A (en) 1936-07-17 1936-07-17 Improvements in or relating to electric lighting units

Publications (1)

Publication Number Publication Date
GB477560A true GB477560A (en) 1938-01-03

Family

ID=10135500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19804/36A Expired GB477560A (en) 1936-07-17 1936-07-17 Improvements in or relating to electric lighting units

Country Status (1)

Country Link
GB (1) GB477560A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717954A (en) * 1950-08-16 1955-09-13 Gen Electric Elongated roadway luminaire
US3197629A (en) * 1963-01-17 1965-07-27 Electrical Products Cons Aircraft warning lights for towers
US4933821A (en) * 1989-05-05 1990-06-12 Minnesota Mining And Manufacturing Company Reflector edge illuminator for fluorescent light
EP0413088A1 (en) * 1989-08-17 1991-02-20 Siemens Aktiengesellschaft Work lamp
DE4024738A1 (en) * 1990-08-03 1992-02-06 Siemens Ag Indirect reflective luminaire for even illumination of large area - has fluorescent lamp(s) within furrow-shaped auxiliary reflector opposite main reflector
DE4443741A1 (en) * 1994-12-08 1996-06-13 Hartmut S Engel lamp
DE29519708U1 (en) * 1995-12-12 1997-04-10 Zumtobel Licht Luminaire with at least one elongated lamp
DE19620209A1 (en) * 1996-05-20 1997-11-27 Zumtobel Licht Luminaire with a profiled base body as a support for at least one lamp
DE29715568U1 (en) * 1997-09-01 1997-12-11 Abele & Geiger Gmbh Mirror housing for an outdoor lamp
CN105202416A (en) * 2015-09-24 2015-12-30 广东生迪科技有限公司 Angle-adjustable track lamp

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717954A (en) * 1950-08-16 1955-09-13 Gen Electric Elongated roadway luminaire
US3197629A (en) * 1963-01-17 1965-07-27 Electrical Products Cons Aircraft warning lights for towers
US4933821A (en) * 1989-05-05 1990-06-12 Minnesota Mining And Manufacturing Company Reflector edge illuminator for fluorescent light
EP0413088A1 (en) * 1989-08-17 1991-02-20 Siemens Aktiengesellschaft Work lamp
DE4024738A1 (en) * 1990-08-03 1992-02-06 Siemens Ag Indirect reflective luminaire for even illumination of large area - has fluorescent lamp(s) within furrow-shaped auxiliary reflector opposite main reflector
DE4443741A1 (en) * 1994-12-08 1996-06-13 Hartmut S Engel lamp
DE29519708U1 (en) * 1995-12-12 1997-04-10 Zumtobel Licht Luminaire with at least one elongated lamp
DE19620209A1 (en) * 1996-05-20 1997-11-27 Zumtobel Licht Luminaire with a profiled base body as a support for at least one lamp
EP0898686A1 (en) † 1996-05-20 1999-03-03 Zumtobel Staff GmbH Lighting fitting with a basic unit as support for at least one lamp
US6155693A (en) * 1996-05-20 2000-12-05 Zumtobel Staff Gmbh Lighting fitting with a basic unit as support for at least one lamp
EP0898686B2 (en) † 1996-05-20 2008-02-20 Zumtobel Lighting GmbH Lighting fitting with a basic unit as support for at least one lamp
DE29715568U1 (en) * 1997-09-01 1997-12-11 Abele & Geiger Gmbh Mirror housing for an outdoor lamp
CN105202416A (en) * 2015-09-24 2015-12-30 广东生迪科技有限公司 Angle-adjustable track lamp

Similar Documents

Publication Publication Date Title
GB477560A (en) Improvements in or relating to electric lighting units
US2556690A (en) Lighting fixture for elongated tubular lamps having means to shield the lamps
US2284534A (en) Lighting fixture
US2485410A (en) Germicide lamp installation
US2290301A (en) Luminaire for tubular lamps
US1493487A (en) Light
GB431885A (en) Improvements in or relating to lamp fittings and reflectors
GB541505A (en) Improvements in street-lighting fittings
GB342121A (en) Improvements in and relating to incandescent lamp illuminating apparatus for photography
US1893653A (en) Sign
US1623699A (en) Lantern
GB713115A (en) Improvements in electric lanterns
GB684186A (en) Improvements in and relating to lanterns for street lighting
GB360664A (en) Improvements in apparatus for directional illumination
GB813648A (en) Improvements in or relating to electric lighting fittings
GB519494A (en) Improvements in and relating to lighting apparatus for shops and like purposes
GB545264A (en) Improvements in electric lighting fittings
GB557154A (en) Improvements in luminaires for fluorescent and other linear electric lamps
GB1117360A (en) Improvements in electric lanterns
GB496391A (en) Improvements in or relating to lighting fittings
GB446328A (en) Improvements in and relating to lamps suitable for street lighting
GB416383A (en) Improvements in or relating to highway lighting
GB302917A (en) Improvements in incandescent electric lamps
GB366939A (en) Improvements in anti-glare devices for automobile headlights
GB483146A (en) Bowls or shades for electric lights