WO1993006414A1 - Luminaires - Google Patents
Luminaires Download PDFInfo
- Publication number
- WO1993006414A1 WO1993006414A1 PCT/GB1992/001720 GB9201720W WO9306414A1 WO 1993006414 A1 WO1993006414 A1 WO 1993006414A1 GB 9201720 W GB9201720 W GB 9201720W WO 9306414 A1 WO9306414 A1 WO 9306414A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- luminaire
- reflectors
- frame
- reflector
- lamp
- Prior art date
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
- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
Definitions
- This invention relates to luminaires, specifically to those for use in lighting situations in which it is not desired to achieve equal lighting at all positions illuminated by the luminaire.
- 'luminaire* is meant an apparatus which distributes, filters and/or transforms light from one or more lamps mounted in the apparatus.
- the fixed light distribution does not prove to be a problem.
- lighting situations such as in a subway, where a luminaire of fixed light distribution may result in either a large wastage of light to ensure that all the area is adequately illuminated, which in a subway results in a higher than necessary degree of illumination of the walls and certain parts of the floor surface, or it may result in inadequate lighting of the entire area but not wastage of light.
- each luminaire so as to give the light distribution best suited to the proposed position in which the luminaire is to be mounted. This option, however, is not feasible economically.
- luminaires with two reflectors of which each can swivel relative to a fixed lamp, to vary the distribution of illumination. It is also known to vary the distribution of illumination by moving the light source relative to the reflectors.
- a luminaire comprising a frame, four or more reflectors mounted on the frame to circumscribe a light source and to reflect light emitted therefrom, wherein the reflectors are pivotally mounted on the frame and associated with means for fixing their position with respect to the frame.
- the luminaire may be adapted to be located about a fixed lamp, or it may itself include a socket for a lamp.
- the socket (and thus the lamp) may be fixed or it may be movable in the frame relative to the reflectors to vary the pattern and distribution of illumination.
- Figure 1 shows a perspective view of a luminaire according to the present invention in a preferred embodiment
- Figure 2 shows a side elevation of a lantern fitted with a luminaire of the present invention
- Figure 3 is a side elevation of the luminaire of Figure 1 in a position in which it throws light down, and
- Figure 4 is a scrap perspective view of one reflector in position.
- a luminaire 2 comprises a frame 4 on to which are pivotally attached four reflectors 6, each being attached by, and pivoting about the main axis of, a pivot screw 8, being locked in position by a lock screw 20. Also attached to frame 4 is a lamp holder 10, in which is a lamp 12. Although screws are described, other forms of pivots and clamps could be used.
- Figure 1 is a perspective view of what would be the underside of the luminaire when mounted, as is usual, to direct downwards the light from lamp 12.
- Frame 4 is in the form of a metal box, with a hexagonal aperture 14 in the base 13 of the box.
- the walls 23 of the box 4 are formed with flanges 15 in which are holes 16 by means of which screws or the like may be used to mount the luminaire in a lantern 21 ( Figure 2) able to be mounted at an appropriate height above the path or other surface to be lit at night.
- Frame 4 may, in other embodiments, be of any substantially hollow form determined by the final desired shape of the luminaire.
- a U-shaped bracket 22 Secured to, or integral with, the frame 4 is a U-shaped bracket 22 to which the lampholder 10 may be secured and of which an inside surface 9, opposite the aperture 14, is of a reflective white material or paint.
- Each reflector 6 extends from near the rear reflective surface 9 to base 13, and is attached by at least the pivot screw 8 at one end of the reflector to the base adjacent to an edge of aperture 14.
- the reflectors 6 and screws 8 are arranged so that on each side of the median axis of aperture 14 there are two reflectors 6 fixed with their screws 8 adjacent to each other and the reflectors extending away from each other.
- each reflector 6 has a substantially-triangular base 17 having the individual reflective facets 18 formed by folding the material of the reflector, such as polished aluminium sheet, about parallel fold lines 19.
- each reflector 6 When its respective pivot screw 8 is not tight, each reflector 6 is able to be pivoted about the main axis of the screw, the axis being substantially perpendicular to the base 13, with the base 17 of each reflector in sliding contact with the base 13.
- Each reflector 6 is of sufficient length for its base at all angular positions to overlap the edges of aperture 14.
- Each reflector 6 is of sufficient width, in the plane perpendicular to base 13, for its depth to be substantially the same as that between the base 13 and surface 9.
- each reflector comprises four substantially- rectangular plane facets angled to each other about a fold line, the major axis of each facet running substantially parallel to base 13.
- reflectors 6 are specular reflectors.
- the lamp holder 10 is located between two free ends of the two adjacent reflectors 6.
- the pivot screws 8 are loosely done up, the reflectors 6 may easily be pivoted to alter the light distribution from the luminaire 2.
- the pivot screws 8 are tightened and holes for lock screws 20 drilled and tapped, and the lock screws 20 inserted and tightened so that each reflector is held in position by two screws.
- lock and pivot screws hold each reflector in position during storage, transit and installation. If the reflector as so held is distributing light where needed, then lock screw 20 is kept in place, but otherwise it is removed to permit adjustment of each reflector by pivotal movement of the reflector about its pivot screw 8.
- the ability to alter the position of the reflectors 6 enables a wide range of light distribution patterns to be achieved.
- the range of light distribution patterns achieved may be further widened by the use of different configurations for the reflector surfaces. All the reflectors in one luminaire may have identically-configured surfaces, but it is within the present invention for the reflectors to have different surface configurations and/or reflectivities.
- a further widening of the range of light distribution patterns may also be achieved by allowing the position of the lamp holder, and hence the position of the lamp to be adjustable relative to the bracket 22 and to the frame 4.
- the frame 4 as shown in square in plan, and is able to be secured to a four-sided lantern 21 by means of screws (not shown) extending through the apertures 16 into tapped holes in the lantern body.
- the lantern body 21 comprises a metal or other framework 26 which has a base from which extends an electric cable 28 for the lamp circuitry. While each face of the lantern may have an individual pane of glass 30, it is preferred to insert into the framework a four-sided body of clear plastics material.
- the cap 24 is preferably pivotally mounted in body 21, so as to give ready access to the lampholder and reflectors.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002119469A CA2119469C (en) | 1991-09-20 | 1992-09-18 | Luminaires |
EP92919753A EP0604515B1 (en) | 1991-09-20 | 1992-09-18 | Luminaires |
AU25910/92A AU662015B2 (en) | 1991-09-20 | 1992-09-18 | Luminaires |
US08/204,415 US5426575A (en) | 1991-09-20 | 1992-09-18 | Luminaires |
JP50591293A JP3509096B2 (en) | 1991-09-20 | 1992-09-18 | lighting equipment |
DE69215882T DE69215882T2 (en) | 1991-09-20 | 1992-09-18 | TO SHINE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9120129.3 | 1991-09-20 | ||
GB919120129A GB9120129D0 (en) | 1991-09-20 | 1991-09-20 | Luminaires |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993006414A1 true WO1993006414A1 (en) | 1993-04-01 |
Family
ID=10701749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1992/001720 WO1993006414A1 (en) | 1991-09-20 | 1992-09-18 | Luminaires |
Country Status (11)
Country | Link |
---|---|
US (1) | US5426575A (en) |
EP (1) | EP0604515B1 (en) |
JP (1) | JP3509096B2 (en) |
AT (1) | ATE146268T1 (en) |
AU (1) | AU662015B2 (en) |
CA (1) | CA2119469C (en) |
DE (1) | DE69215882T2 (en) |
DK (1) | DK0604515T3 (en) |
ES (1) | ES2097351T3 (en) |
GB (1) | GB9120129D0 (en) |
WO (1) | WO1993006414A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999011972A1 (en) * | 1997-09-01 | 1999-03-11 | Abele + Geiger Gmbh | Reflector for external light |
EP1925878A1 (en) * | 2006-11-22 | 2008-05-28 | Toplight N.V. | Lighting apparatus |
WO2012037630A1 (en) * | 2010-09-23 | 2012-03-29 | Bunge Alimentos S/A | Liquid/semi-viscous water-in-oil emulsion and method for producing same |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5690422A (en) * | 1995-09-25 | 1997-11-25 | Lighting Research & Development, Inc. | Sharp-cutoff luminaire having specular reflecting facets with fan-line geometry |
US6076943A (en) * | 1995-10-04 | 2000-06-20 | Lassovsky; Leon A. | Luminaire |
US6607289B2 (en) | 1995-10-04 | 2003-08-19 | Leon Lassovsky | Quick connect reflector holder |
US6206548B1 (en) | 1996-08-27 | 2001-03-27 | Leon A. Lassovsky | Luminaire module having multiple rotatably adjustable reflectors |
US5931569A (en) * | 1997-03-04 | 1999-08-03 | Pittway Corporation | Reflector with strobe light extending therefrom |
US6814469B2 (en) * | 2000-06-19 | 2004-11-09 | Cooper Industries, Inc. | Rotating reflector |
US6623143B2 (en) | 2000-07-06 | 2003-09-23 | Honeywell International, Inc. | Ceiling reflectors |
US6969181B1 (en) | 2001-05-08 | 2005-11-29 | Genlyte Thomas Group Llc | Fully recessed unit equipment luminaire |
US6588916B2 (en) * | 2001-08-27 | 2003-07-08 | Honda Giken Kogyo Kabushiki Kaisha | Paint booth lighting fixture |
US6793375B2 (en) * | 2001-10-19 | 2004-09-21 | Honeywell International, Inc. | Reflector with complex parabolid surface for elongated light source |
GB0408656D0 (en) | 2004-04-19 | 2004-05-19 | Abacus Holdings Ltd | Reflector assembly |
US7384167B1 (en) | 2005-04-04 | 2008-06-10 | Genlyte Thomas Group, Llc | Optimal wall washing kick reflector |
US7607794B1 (en) | 2006-08-18 | 2009-10-27 | Genlyte Thomas Group Llc | Recessed wall-wash kick reflector |
US7722208B1 (en) | 2007-09-30 | 2010-05-25 | Genlyte Thomas Group, Llc | Recessed luminaire trim assembly |
US8371726B2 (en) * | 2009-05-27 | 2013-02-12 | Koninklijke Philips Electronics N.V. | Recessed luminaire with a reflector |
US20150131275A1 (en) * | 2015-01-20 | 2015-05-14 | Ryan Robl | Decorative Lighting Assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE348944A (en) * | ||||
CH370039A (en) * | 1959-05-04 | 1963-06-30 | Transelectric Rubeli Schenker | Lighting fixture with variable reflector |
DE1904982A1 (en) * | 1969-02-01 | 1970-08-20 | Siemens Ag | Wide beam luminaire for one or more lamps with a rod-shaped lighting system, preferably a high-pressure sodium vapor lamp |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3213271A (en) * | 1963-05-10 | 1965-10-19 | Gen Electric | Luminaire |
DE2417605C3 (en) * | 1974-04-10 | 1980-10-16 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Broad beam street light |
US4041306A (en) * | 1975-12-15 | 1977-08-09 | Kim Lighting, Inc. | Luminaire and reflector therefor |
US4053766A (en) * | 1975-12-23 | 1977-10-11 | U.S. Industries, Inc. | Lamp lens structure |
US4651260A (en) * | 1984-10-24 | 1987-03-17 | Prescolite Inc. | Roadway luminaire |
US4616296A (en) * | 1985-08-07 | 1986-10-07 | Alkco Manufacturing Company | Lamp |
US4872098A (en) * | 1989-03-20 | 1989-10-03 | Lpi Limited Partnership | Variable beam floodlight |
US4979086A (en) * | 1990-04-12 | 1990-12-18 | Lowering Systems, Inc. | Luminaire having main and secondary reflector sections |
-
1991
- 1991-09-20 GB GB919120129A patent/GB9120129D0/en active Pending
-
1992
- 1992-09-18 JP JP50591293A patent/JP3509096B2/en not_active Expired - Fee Related
- 1992-09-18 WO PCT/GB1992/001720 patent/WO1993006414A1/en active IP Right Grant
- 1992-09-18 DE DE69215882T patent/DE69215882T2/en not_active Expired - Lifetime
- 1992-09-18 EP EP92919753A patent/EP0604515B1/en not_active Expired - Lifetime
- 1992-09-18 CA CA002119469A patent/CA2119469C/en not_active Expired - Fee Related
- 1992-09-18 DK DK92919753.1T patent/DK0604515T3/en active
- 1992-09-18 US US08/204,415 patent/US5426575A/en not_active Expired - Lifetime
- 1992-09-18 AT AT92919753T patent/ATE146268T1/en not_active IP Right Cessation
- 1992-09-18 AU AU25910/92A patent/AU662015B2/en not_active Ceased
- 1992-09-18 ES ES92919753T patent/ES2097351T3/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE348944A (en) * | ||||
CH370039A (en) * | 1959-05-04 | 1963-06-30 | Transelectric Rubeli Schenker | Lighting fixture with variable reflector |
DE1904982A1 (en) * | 1969-02-01 | 1970-08-20 | Siemens Ag | Wide beam luminaire for one or more lamps with a rod-shaped lighting system, preferably a high-pressure sodium vapor lamp |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999011972A1 (en) * | 1997-09-01 | 1999-03-11 | Abele + Geiger Gmbh | Reflector for external light |
EP1925878A1 (en) * | 2006-11-22 | 2008-05-28 | Toplight N.V. | Lighting apparatus |
BE1017369A3 (en) * | 2006-11-22 | 2008-07-01 | Toplight Nv | LIGHTING DEVICE. |
BE1018445A3 (en) * | 2006-11-22 | 2010-12-07 | Toplight Nv | LIGHTING DEVICE. |
WO2012037630A1 (en) * | 2010-09-23 | 2012-03-29 | Bunge Alimentos S/A | Liquid/semi-viscous water-in-oil emulsion and method for producing same |
Also Published As
Publication number | Publication date |
---|---|
ATE146268T1 (en) | 1996-12-15 |
DK0604515T3 (en) | 1997-06-02 |
US5426575A (en) | 1995-06-20 |
EP0604515B1 (en) | 1996-12-11 |
JP3509096B2 (en) | 2004-03-22 |
AU2591092A (en) | 1993-04-27 |
AU662015B2 (en) | 1995-08-17 |
CA2119469C (en) | 2001-11-27 |
JPH06510882A (en) | 1994-12-01 |
DE69215882D1 (en) | 1997-01-23 |
EP0604515A1 (en) | 1994-07-06 |
GB9120129D0 (en) | 1991-11-06 |
DE69215882T2 (en) | 1997-06-12 |
CA2119469A1 (en) | 1993-04-01 |
ES2097351T3 (en) | 1997-04-01 |
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