US3902059A - Light reflector system - Google Patents

Light reflector system Download PDF

Info

Publication number
US3902059A
US3902059A US443018A US44301874A US3902059A US 3902059 A US3902059 A US 3902059A US 443018 A US443018 A US 443018A US 44301874 A US44301874 A US 44301874A US 3902059 A US3902059 A US 3902059A
Authority
US
United States
Prior art keywords
reflector
curved
opening
reflectors
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 - Lifetime
Application number
US443018A
Other languages
English (en)
Inventor
Jr Albert C Mcnamara
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.)
Esquire Inc
Original Assignee
Esquire Inc
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 Esquire Inc filed Critical Esquire Inc
Priority to US443018A priority Critical patent/US3902059A/en
Priority to AU69831/74A priority patent/AU484663B2/en
Priority to GB2716274A priority patent/GB1461431A/en
Priority to ES427848A priority patent/ES427848A1/es
Priority to IT51925/74A priority patent/IT1016308B/it
Priority to BR5553/74A priority patent/BR7405553A/pt
Priority to DE2432970A priority patent/DE2432970A1/de
Priority to FR7424883A priority patent/FR2261475B1/fr
Priority to BE146626A priority patent/BE817730A/xx
Priority to CA213,597A priority patent/CA983453A/en
Application granted granted Critical
Publication of US3902059A publication Critical patent/US3902059A/en
Assigned to WIDE-LITE INTERNATIONAL CORPORATION reassignment WIDE-LITE INTERNATIONAL CORPORATION ASSIGNS THE ENTIRE INTEREST. SUBJECT TO AGREEMENT DATED JUNE 30,1983 Assignors: ESQUIRE, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • a multi-sided light reflector for a light source which reflector incorporates curved reflector surfaces that cooperate with a light source disposed within the reflector to permit only primary reflections from the light source to be emitted from a reflector opening.
  • the reflector includes a plurality of curved side reflecting surfaces disposed in angular relationship with a plurality of curved corner reflector surfaces disposed between the side reflector surfaces and joined to the side reflecting surfaces.
  • the line of juncture between the side reflector surfaces and the comer reflector surfaces is curved and the lower point of each of the corner reflector surfaces is defined by intersection of the curved lines of juncture of the respective corner reflectors and is disposed in the plane of the reflector opening.
  • the reflector opening, from which direct and primary reflections are emitted, is defined by the primary exit pupil ray of the light source from the various side and corner reflectors.
  • FIG. I 43 PRIORART LIGHT REFLECTOR SYSTEM BACKGROUND OF THE INVENTION 1. FIELD OF THE INVENTION This invention relates generally to lighting reflectors and more specifically to such reflectors having multisided reflecting surfaces causing at least some primary reflections'to be emitted through the opening of the reflector.
  • the conventional method of modifying a square-shaped reflector to provide corner reflectors is to use inserts which start at a point at the comer of a square base of the reflector and flares so that at the opening the insert is at its widest dimension.
  • Such a structure effectively changes the square opening into a reduced sized octogan opening and hence creates dead corner spaces which are not useful reflection surfaces.
  • a preferred embodiment of the present invention comprises a light reflector in which a light source may be installed and in which the side reflectors are curved, the side reflectors establishing an opening for light emissions.
  • the side reflectors are oriented relative to the light source to cause only primary reflection emissions from the opening.
  • the outlet opening of the light reflector is defined by straight lines lying in each of the curved reflector surfaces, the straight lines of adjacent side reflecting surfaces being disposed in angular intersecting relationship and the lowermost point of each of the corner reflector surfaces being disposed at the intersection of said straight lines.
  • FIG. 1 is a plan view of a prior art lighting reflector.
  • FIG. 2 is a plan viewv of a light reflector constructed in'accordance with the present invention.
  • FIG. 3 is an isometric illustration depicting the light reflector of FIG. 2.
  • FIG. 4 is a schematic representation illustrating formation of theoutlet opening of the reflector structure in accordance -with the various reflector orientatio thereof.
  • FIG. 5 is a schematic representation illustrating direct and primary reflection of light from the light reflector system of the present invention.
  • FIG. 6 is an oblique schematic representation for determining the dimension of comer reflectors.
  • FIG. 1 a light reflector is shown which has previously been preferred for optimizing light reflections from a reflector having a square opening.
  • side pieces 11, 13, 15 and 17 are slanted back from the opening to terminate in a rectangular base 19 at the back of the re-, flector which is generally parallel with the plane of the opening through which the light is emitted. It may be assumed for'purposes of discussion-that the reflector is uniformly dimensioned so that each of the side reflectors are of the same dimension and base 19 is square.
  • the side pieces would have respectively met each other at corners 21, 23, 25 and 27, respectively (as shown by the dotted lines).
  • Light from a source located in the center of the reflector and emitting light in all directions would not reflect light off of a side reflector through the opening at the corners and therefore a reflector without corner pieces at all is extremely inefficient in its corner emissions.
  • Corner piece 21 located between side pieces 11 and 13 is in the shape of an isosceles triangle.
  • the corner between the two equal length sides is secured at a corner of base 19 and the other two corners terminate at the plane of the opening, one corner with adjacent side piece 11 and the other corner with adjacent side piece 13, each being displaced at the opening an equal distance from comer 21.
  • corner pieces 31, 33 and 35 are similar in construction to corner piece 29. It has been demonstrated that such a structure with the corner pieces as described is more efficient in its light emission than a structure without such corner pieces since more primary emission is developed.
  • corner pieces have reduced the effective opening area by the amount of corner spaces 37, 39, 41 and 43. These spaces are the triangular spaces between the edge of the corner piece and the edge of the side pieces in the plane of the opening.
  • side reflector surfaces are developed, as shown in FIG. 4, which reflect primary light from the source through the reflector opening and which utilize the entire opening of the reflector.
  • a theoretical point source is located at having an image I with respect to side 50. That is, a right angle projection from point 0 to a plane that is tangent to the curved reflector 50 results in point I being established an equal distance from the point of tangency of the plane and the curved reflector surface but on the opposite side thereof from point 0.
  • a cross-sectional view of the plane 48 that is tangent to the curved surface 50 shows clearly the right angle relationship between the plane 48 and the projection line, O-to-I.
  • the exit pupil is the edge of the opening on one side of which primary reflections from a light source are allowed to pass and on the other side of which light rays are blocked.
  • the exit pupil ray therefore, is a ray along the line drawn between point I and the escape edge of the opening.
  • the exit pupil edge is identified with reference numeral 52.
  • FIG. 6 it is illustrated that the exit pupil rays from point I which are allowed to escape past opposite side 54 after being reflected from side 50 are allowed to escape at corner 56 and corner 58 of side 54 in the plane of the opening. Of course, rays also escape at all points between corners 56 and 58 along exit pupil edge 52.
  • Exit pupil rays are also permitted to escape from side 60 adjacent side 50 at comer 62 between sides 50 and 60 in the plane at the opening and along the edge between corners 62 and 56.
  • This angle may be determined by drawing a line from image point I to corner 56, marking the intersection point 64 between that line and plane 50, and then drawing a straight line from corner 62 through point 64.
  • FIG. 6 represents straight line calculation of the exit pupil rays for determination of the outlet opening, such is intended for purposes of illustration only. Point or line calculations generated from curved reflector surfaces will function in the same manner.
  • corner reflectros may be inserted, each corner reflectors or piece being defined by two of the 12 curved lines in adjacent side pieces.
  • comer piece 72a lies between curved side pieces a and 70d and is defined by the two curved lines, one on each side piece, drawn to the common corner between side pieces 70a and 70d.
  • corner pieces 70a, 70b, 70c, 70d, 70e and 70f and side pieces 72a, 72b, 72c, 72d, 72c and 72f meet in a six sided shaped base 74.
  • the curved reflector surface 50 effectively eliminates the necessity for providing internal back reflectors that would otherwise promote primary reflection of light rays that are blocked by the escape edge 52.
  • the reflector construction employed only side reflectors that are joined along curved lines, light reflected by certain edge portions of the side reflectors will not be capable of primary reflection. It is therefore desirable to to provide corner reflectors that are positioned and configured to provide primary reflection of light that would otherwise become lost or diffused through multiple reflection.
  • the curved comer reflector surfaces such as depicted at 72a through 72f in FIG. 2 are generated by the various points at which the primary reflections fail to be reflected by the side reflector surfaces.
  • a direct ray of light being emitted from point 0, the imaginary center of the reflector system at which the light source is located, and passing through a point of tangency of an imaginary plane intersecting the side reflector surface will pass through the outlet opening of the reflector structure only if the point of imaginary reflection from point 1 falls outside of a corner area such as that defined by broken lines. It becomes desirable therefore, to provide the reflector structure with comer reflector surfaces that are generated in such manner that the corner reflectors also provide for primary reflection of light being emitted from the lightsource. If each point on the side reflector surfaces is generated beyond which primary reflections will not occur, curved lines will be established by the various points, such as illustrated in broken lines at 81 and 83. Within the areas defined by the curved lines 81 and 83, corner reflectors may be disposed, the center of which being oriented in substantially normal relation to direct ray of light being emitted from the point 0'.
  • the reflector has been depicted as being of six sided configuration. The principles described, however, are also applicable to any other multi-sided reflector system. Also, each of the curved corner reflector surfaces have been described as merging in a corner point. In an actual structure, it may be desired to have that point be a phantom point for ease of construction, operation of the reflector being functionally similar to that described.
  • a light reflector for carrying a mounted light source therein and having a light emission opening through which light from the source is emitted, comprising:
  • first and second curved side reflectors oriented to cause at least some primary reflections of the source to be emitted through the opening
  • said curved side reflectors meeting at least at a point defining a first corner at the opening, the primary reflection exit pupil rays of said light source to said curved side reflectors defining curved edges of said curved side reflectors, and
  • a curved corner reflector being defined within said curved edges of said side reflectors and being oriented relative to said light source to cause at least some primary reflections of said light source to be emitted through the opening without further reflection.
  • a plurality of substantially identical corner reflectors are disposed one between each of the respective side reflector surfaces.
  • a multi-sided generally planar reflector surface is defined by a plurality of straight lines interconnecting said plurality of points.
  • a light reflector for carrying a mounted light source therein and having an opening defined thereby through which light from the source emanates, said light reflector comprising:
  • a plurality of curved side reflectors slanted inwardly from the plane of said opening to cause at least some primary reflections of the source to emanate through the opening, said side reflectors being disposed in angulated relation to each other in the plane of the opening, and
  • corner reflectors being disposed one between each of said adjacent side reflectors and extending inwardly from the plane of said opening, said corner reflectors being curved and being defined by curved lines that intersect at each extremity thereof.
  • At least first and second adjacent curved reflectors meeting to form a part of said opening through which light from the source is emitted and being oriented to cause at least some primary reflections of said light source to be emitted through the opening, and
  • a third curved reflector extending from the plane of said opening, being adjacent at least one of said first and second curved reflectors and having sides merging toward a point at a corner of said opening, the exit pupil of each of said two adjacent curved reflectors permitting the forwardly directed primary light reflections of said light source from said third curved reflector to emanate through said opening without secondary reflection.
  • a light reflector for carrying a mounted light source and defining an opening through which light from the source is emitted, comprising,
  • a plurality of curved corner reflectors disposed between at least some of said curved side reflectors and extending from the plane of said opening, said comer reflectors having curved sides merging toward a point located on the plane of said opening and being oriented to reflect light from said source through said opening, and
  • each of saidcurved reflectors at sai opening permitting primary light reflections of said light source from each of said curved corner reflectors to emanate through said opening without secondary reflection.
  • said plurality of curved corner reflectors includes a second comer reflector adjacent said first curved reflector but spaced from said third curved reflector, such that the forwardly directed primary reflections from said second curved corner reflecto directed toward the meeting of said first and third curved reflectors define a boundary between said first curved reflector and said second curved corner reflector.
  • Corner piece 21 located between side pieces 11 and I3 is in the shape of an isosceles triangle.
  • corner pieces 31, 33 and 35 are similar in construction to corner piece 29. It has been demonstrated that such a structure with the corner pieces as described is more efficient in its light emission than a structure without such corner pieces since more priary emission is developed.
  • corner pieces have reduced the effective opening area by the amount of corner spaces 37, 39., 41 and 43. These spaces are the triangular spaces between the edge of the corner piece and the edge of the side pieces in the plane of the .opening.
  • side reflector surfaces are developed, as shown in FIG. 4, which reflect primary light from the source through the reflector opening and which utilize the entire opening of the reflector.
  • a theoretical point source s located at having an image I with respect to side 50. That is, a right angle projection from point 0 to a plane that is tangent to the curved reflector 50 results in point l being established an equal distance from the point of tangency of the plane and the curved reflector surface but on the opposite side thereof from point 0.
  • a cross-sectional view of .he plane 48 that is tangent to the curved surface 50 shows clearly the right angle relationship between the plane 48 and the projection line, O-to-I.
  • the exit pupil is the edge of the opening on one side of which primary reflections from a light source are allowed to pass and on the other side of which light rays are blocked.
  • the exit pupil ray
  • exit pupil edge is identified with reference numeral 52.
  • FIG. 6 it is illustrated that the exit pupil rays from point I which are allowed to escape past opposite side 54 after being reflected from side 50 are allowed to escape at corner 56 and corner 58 of side 54 n the plane of the opening. Ofcourse, rays also escape at all points between corners 56 and 58 along exit pupil edge 52.
  • Exit pupil rays are also permitted to escape from side 60 adjacent side 50 at corner 62 between sides 50 and 60 in the plane at the opening and along the edge be tween corners 62 and 56.
  • angle d there are rays Within an angle d which are not permitted to be emitted through the opening without being further reflected from side piece 60. This angle may be determined by drawing a line from image point I to corner 56, marking the intersection point 64 between that line and plane 50, and then drawing a straight line from corner 62 through point 64.
  • FIG. 6 represents straight line calculation of the exit pupil rays for determination of the outlet opening, such is intended for purposes of illustration only. Point or line calculations generated from curved reflector surfaces will function in the same manner.
  • corner reflcctros may be inserted, each corner reflectors or piece being defined by two of the l2 curved lines in adjacent side pieces.
  • comer piece 72a lies between curved side pieces a and 70d and is defined by the two curved lines, one on each side piece, drawn to the common corner between side pieces 70a and 70d.
  • corner pieces 70a, 70b, 70c, 70d, 70e and 70f and side pieces 72a, 72b, 72c, 72d, 72e and 72f meet in a six sided shaped base 74.
  • each of the various points lying in the curved reflector surface may be located graphically by simple determi nation of the point of tangency between a plane that is tangent to the surface 50.
  • the curved reflector surface 50 effectively eliminates the necessity for providing internal back reflectors that would otherwise promote primary reflection of light rays that are blocked by the escape edge 52.
  • the reflector construction employed only side reflectors that are joined along curved lines, light reflected by certain edge portions of the side reflectors will not be capable of primary reflection. It is therefore desirable to to provide corner reflectors that are positioned and configured to provide primary reflection of light that would otherwise become lost or diffused through multiple reflection.
  • the curved corner reflector surfaces such as depicted at 720 through 72f in FIG. 2 are generated by the various points at which the primary reflections fail to be re- .flected by the side reflector surfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
US443018A 1974-02-15 1974-02-15 Light reflector system Expired - Lifetime US3902059A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US443018A US3902059A (en) 1974-02-15 1974-02-15 Light reflector system
AU69831/74A AU484663B2 (en) 1974-02-15 1974-06-06 Light reflector system
GB2716274A GB1461431A (en) 1974-02-15 1974-06-19 Light reflector system welding machine
ES427848A ES427848A1 (es) 1974-02-15 1974-07-01 Un reflector de luz para llevar una fuente de luz montada en el mismo.
IT51925/74A IT1016308B (it) 1974-02-15 1974-07-04 Perfezionamento nei riflettori per dispositivi di illuminazione
BR5553/74A BR7405553A (pt) 1974-02-15 1974-07-05 Refletor di luz
DE2432970A DE2432970A1 (de) 1974-02-15 1974-07-09 Lichtreflektor
FR7424883A FR2261475B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-02-15 1974-07-17
BE146626A BE817730A (fr) 1974-02-15 1974-07-17 Reflecteur pour source lumineuse
CA213,597A CA983453A (en) 1974-02-15 1974-11-13 Light reflector system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US443018A US3902059A (en) 1974-02-15 1974-02-15 Light reflector system

Publications (1)

Publication Number Publication Date
US3902059A true US3902059A (en) 1975-08-26

Family

ID=23759104

Family Applications (1)

Application Number Title Priority Date Filing Date
US443018A Expired - Lifetime US3902059A (en) 1974-02-15 1974-02-15 Light reflector system

Country Status (9)

Country Link
US (1) US3902059A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE817730A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR7405553A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA983453A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2432970A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES427848A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2261475B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1461431A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1016308B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308573A (en) * 1978-06-12 1981-12-29 Esquire, Inc. Lamp fixture including diffused low angle reflective surfaces
WO1993012376A1 (en) * 1991-12-09 1993-06-24 Ab Fagerhult Reflector for an electrical radiation fitting and radiation fitting furnished with such a reflector
US20040149998A1 (en) * 2002-12-02 2004-08-05 Henson Gordon D. Illumination system using a plurality of light sources
US20050116635A1 (en) * 2003-12-02 2005-06-02 Walson James E. Multiple LED source and method for assembling same
US20050116235A1 (en) * 2003-12-02 2005-06-02 Schultz John C. Illumination assembly
US20050117366A1 (en) * 2003-12-02 2005-06-02 Simbal John J. Reflective light coupler
US20050140270A1 (en) * 2003-12-02 2005-06-30 Henson Gordon D. Solid state light device
USD563022S1 (en) 2007-01-19 2008-02-26 Genlyte Thomas Group, Llc Luminaire
USD563590S1 (en) 2007-01-19 2008-03-04 Genlyte Thomas Group, Llc Luminaire
US7456805B2 (en) 2003-12-18 2008-11-25 3M Innovative Properties Company Display including a solid state light device and method using same
EP1998104A1 (de) * 2007-04-21 2008-12-03 Stefan Naumann Reflektoranordnung
USD583976S1 (en) * 2007-02-28 2008-12-30 Genlyte Thomas Group Llc Luminaire
USD589638S1 (en) 2008-01-21 2009-03-31 Genlyte Thomas Group Llc Linear wall or ceiling mounted luminaire with rotatable optics
USD604882S1 (en) 2008-05-06 2009-11-24 Genlyte Thomas Group, Llc Track fixture luminaire
USD604881S1 (en) 2008-05-06 2009-11-24 Genlyte Thomas Group, Llc Track fixture luminaire
USD605323S1 (en) 2008-05-06 2009-12-01 Koninklijke Philips Electronics N.V. Track fixture luminaire
USD605324S1 (en) 2008-05-06 2009-12-01 Koninklijke Philips Electronics N.V. Track fixture luminaire
USD614325S1 (en) 2008-05-06 2010-04-20 Koninklijke Philips Electronics N.V. Track fixture luminaire
USD614801S1 (en) * 2009-05-27 2010-04-27 Koninklijke Philips Electronics N.V Reflector for a recessed luminaire
USD619288S1 (en) 2008-05-06 2010-07-06 Koninklijke Philips Electronics N.V. Track fixture luminaire
USD621993S1 (en) * 2009-09-25 2010-08-17 Jenn Feng New Energy Co., Ltd. Lamp reflector
US7950833B1 (en) 2008-06-17 2011-05-31 Genlyte Thomas Group Llc Splay frame luminaire
USD748849S1 (en) * 2014-06-11 2016-02-02 Ip Holdings, Llc Sealed optics air cooled grow light
US9335038B2 (en) 2011-07-20 2016-05-10 Ip Holdings, Llc Vertically disposed HID lamp fixture
USD769513S1 (en) 2015-04-15 2016-10-18 Ip Holdings, Llc Light fixture
USD769514S1 (en) 2014-10-22 2016-10-18 Ip Holdings, Llc Horticulture grow light
USD770079S1 (en) 2015-04-02 2016-10-25 Ip Holdings, Llc Light fixture
USD770670S1 (en) 2015-06-24 2016-11-01 Ip Holdings, Llc Horticulture grow light
USD771301S1 (en) * 2013-06-20 2016-11-08 Ip Holdings, Llc Horticulture grow light fixture
USD773107S1 (en) 2015-04-13 2016-11-29 Ip Holdings, Llc Horticulture grow light
USD775406S1 (en) * 2014-02-24 2016-12-27 Ip Holdings, Llc Horticulture grow light reflector
USD775760S1 (en) * 2013-03-27 2017-01-03 Ip Holdings, Llc Horticulture grow light housing
USD783887S1 (en) 2014-12-11 2017-04-11 Ip Holdings, Llc Horticulture grow light
USD792635S1 (en) 2014-08-07 2017-07-18 Ip Holdings, Llc Horticulture grow light
USD793616S1 (en) 2014-09-11 2017-08-01 Ip Holdings, Llc Light fixture
US9750199B2 (en) 2013-07-18 2017-09-05 Ip Holdings, Llc Air cooled horticulture lighting fixture
USD796727S1 (en) 2013-07-09 2017-09-05 Ip Holdings, Llc Horticulture grow light housing
US9752766B2 (en) 2013-07-18 2017-09-05 Ip Holdings, Llc Air cooled horticulture lighting fixture
USD796728S1 (en) 2016-06-06 2017-09-05 Ip Holdings, Llc Light fixture
USD797350S1 (en) 2016-11-01 2017-09-12 Ip Holdings, Llc Light fixture
USD804078S1 (en) 2016-08-31 2017-11-28 Ip Holdings, Llc Light fixture
USD804079S1 (en) 2016-08-31 2017-11-28 Ip Holdings, Llc Light fixture
USD804707S1 (en) 2016-01-07 2017-12-05 Ip Holding, Llc Light fixture
USD804706S1 (en) 2016-01-05 2017-12-05 Ip Holdings, Llc Light fixture
USD814687S1 (en) 2015-01-08 2018-04-03 Ip Holdings, Llc Light fixture
USD822882S1 (en) 2017-05-17 2018-07-10 Ip Holdings, Llc Horticulture grow light
USD842532S1 (en) 2017-10-25 2019-03-05 Hgci, Inc. Light fixture
USD843049S1 (en) 2017-09-14 2019-03-12 Hgci, Inc. Horticulture grow light
USD848663S1 (en) 2017-11-03 2019-05-14 Hgci, Inc. Light fixture
USD848664S1 (en) 2017-11-07 2019-05-14 Hgci, Inc. Light fixture
USD848665S1 (en) 2017-11-08 2019-05-14 Hgci, Inc. Horticulture grow light
USD871654S1 (en) 2017-10-30 2019-12-31 Hgci, Inc. Light fixture

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2205860A (en) * 1939-09-29 1940-06-25 Olds Phelps Flashlight apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2205860A (en) * 1939-09-29 1940-06-25 Olds Phelps Flashlight apparatus

Cited By (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308573A (en) * 1978-06-12 1981-12-29 Esquire, Inc. Lamp fixture including diffused low angle reflective surfaces
WO1993012376A1 (en) * 1991-12-09 1993-06-24 Ab Fagerhult Reflector for an electrical radiation fitting and radiation fitting furnished with such a reflector
US20070103925A1 (en) * 2002-12-02 2007-05-10 3M Innovative Properties Company Illumination system using a plurality of light sources
US20040149998A1 (en) * 2002-12-02 2004-08-05 Henson Gordon D. Illumination system using a plurality of light sources
US7658526B2 (en) 2002-12-02 2010-02-09 3M Innovative Properties Company Illumination system using a plurality of light sources
US20090059614A1 (en) * 2002-12-02 2009-03-05 3M Innovative Properties Company Illumination system using a plurality of light sources
US7360924B2 (en) 2002-12-02 2008-04-22 3M Innovative Properties Company Illumination system using a plurality of light sources
US7329887B2 (en) 2003-12-02 2008-02-12 3M Innovative Properties Company Solid state light device
US20050116235A1 (en) * 2003-12-02 2005-06-02 Schultz John C. Illumination assembly
US20050140270A1 (en) * 2003-12-02 2005-06-30 Henson Gordon D. Solid state light device
US7403680B2 (en) * 2003-12-02 2008-07-22 3M Innovative Properties Company Reflective light coupler
US20050117366A1 (en) * 2003-12-02 2005-06-02 Simbal John J. Reflective light coupler
US20050116635A1 (en) * 2003-12-02 2005-06-02 Walson James E. Multiple LED source and method for assembling same
US7456805B2 (en) 2003-12-18 2008-11-25 3M Innovative Properties Company Display including a solid state light device and method using same
USD563022S1 (en) 2007-01-19 2008-02-26 Genlyte Thomas Group, Llc Luminaire
USD563590S1 (en) 2007-01-19 2008-03-04 Genlyte Thomas Group, Llc Luminaire
USD583976S1 (en) * 2007-02-28 2008-12-30 Genlyte Thomas Group Llc Luminaire
EP1998104A1 (de) * 2007-04-21 2008-12-03 Stefan Naumann Reflektoranordnung
USD589638S1 (en) 2008-01-21 2009-03-31 Genlyte Thomas Group Llc Linear wall or ceiling mounted luminaire with rotatable optics
USD605323S1 (en) 2008-05-06 2009-12-01 Koninklijke Philips Electronics N.V. Track fixture luminaire
USD605324S1 (en) 2008-05-06 2009-12-01 Koninklijke Philips Electronics N.V. Track fixture luminaire
USD604881S1 (en) 2008-05-06 2009-11-24 Genlyte Thomas Group, Llc Track fixture luminaire
USD614325S1 (en) 2008-05-06 2010-04-20 Koninklijke Philips Electronics N.V. Track fixture luminaire
USD619288S1 (en) 2008-05-06 2010-07-06 Koninklijke Philips Electronics N.V. Track fixture luminaire
USD604882S1 (en) 2008-05-06 2009-11-24 Genlyte Thomas Group, Llc Track fixture luminaire
US7950833B1 (en) 2008-06-17 2011-05-31 Genlyte Thomas Group Llc Splay frame luminaire
USD614801S1 (en) * 2009-05-27 2010-04-27 Koninklijke Philips Electronics N.V Reflector for a recessed luminaire
USD621993S1 (en) * 2009-09-25 2010-08-17 Jenn Feng New Energy Co., Ltd. Lamp reflector
US9335038B2 (en) 2011-07-20 2016-05-10 Ip Holdings, Llc Vertically disposed HID lamp fixture
US10473317B2 (en) 2011-07-20 2019-11-12 Hgci, Inc. Cooling a horticulture light fixture using an isolation chamber
US10955127B2 (en) 2011-07-20 2021-03-23 Hgci, Inc. Cooling a horticulture light fixture using an isolation chamber
US11877551B2 (en) 2011-07-20 2024-01-23 Hgci, Inc. Cooling a horticulture light fixture using an isolation chamber
USD826468S1 (en) 2012-06-26 2018-08-21 Hgci, Inc. Light fixture
USD802830S1 (en) 2012-06-26 2017-11-14 Ip Holdings, Llc Light fixture
USD775760S1 (en) * 2013-03-27 2017-01-03 Ip Holdings, Llc Horticulture grow light housing
USD802828S1 (en) 2013-06-20 2017-11-14 Ip Holdings, Llc Horticulture grow light fixture
USD843640S1 (en) 2013-06-20 2019-03-19 Hgci, Inc. Horticulture grow light fixture
USD771301S1 (en) * 2013-06-20 2016-11-08 Ip Holdings, Llc Horticulture grow light fixture
USD796727S1 (en) 2013-07-09 2017-09-05 Ip Holdings, Llc Horticulture grow light housing
US9903578B1 (en) 2013-07-18 2018-02-27 Ip Holdings, Llc Air cooled horticulture lighting fixture for a double ended high pressure sodium lamp
US9752766B2 (en) 2013-07-18 2017-09-05 Ip Holdings, Llc Air cooled horticulture lighting fixture
US9888633B1 (en) 2013-07-18 2018-02-13 Ip Holdings, Llc Air cooled horticulture lighting fixture
US9750199B2 (en) 2013-07-18 2017-09-05 Ip Holdings, Llc Air cooled horticulture lighting fixture
USD775406S1 (en) * 2014-02-24 2016-12-27 Ip Holdings, Llc Horticulture grow light reflector
USD802826S1 (en) 2014-06-11 2017-11-14 Ip Holdings, Llc Sealed optics air cooled grow light
USD825826S1 (en) * 2014-06-11 2018-08-14 Hgci, Inc. Sealed optics air cooled grow light
USD854229S1 (en) 2014-06-11 2019-07-16 Hgci, Inc. Sealed optics air cooled grow light
USD797353S1 (en) * 2014-06-11 2017-09-12 Ip Holdings, Llc Sealed optics air cooled grow light
USD748849S1 (en) * 2014-06-11 2016-02-02 Ip Holdings, Llc Sealed optics air cooled grow light
USD792635S1 (en) 2014-08-07 2017-07-18 Ip Holdings, Llc Horticulture grow light
USD940381S1 (en) 2014-09-11 2022-01-04 Hgci, Inc. Light fixture
USD793616S1 (en) 2014-09-11 2017-08-01 Ip Holdings, Llc Light fixture
USD837442S1 (en) 2014-09-11 2019-01-01 Hgci, Inc. Light fixture
USD769514S1 (en) 2014-10-22 2016-10-18 Ip Holdings, Llc Horticulture grow light
USD783887S1 (en) 2014-12-11 2017-04-11 Ip Holdings, Llc Horticulture grow light
USD814687S1 (en) 2015-01-08 2018-04-03 Ip Holdings, Llc Light fixture
USD770079S1 (en) 2015-04-02 2016-10-25 Ip Holdings, Llc Light fixture
USD773107S1 (en) 2015-04-13 2016-11-29 Ip Holdings, Llc Horticulture grow light
USD804708S1 (en) 2015-04-15 2017-12-05 Ip Holding, Llc Light fixture
USD804709S1 (en) 2015-04-15 2017-12-05 Ip Holdings, Llc Light fixture
USD769513S1 (en) 2015-04-15 2016-10-18 Ip Holdings, Llc Light fixture
USD786488S1 (en) 2015-04-15 2017-05-09 Ip Holdings, Llc Light fixture
USD826469S1 (en) 2015-06-24 2018-08-21 Hgci, Inc. Horticulture grow light
USD802829S1 (en) 2015-06-24 2017-11-14 Ip Holdings, Llc Horticulture grow light
USD770670S1 (en) 2015-06-24 2016-11-01 Ip Holdings, Llc Horticulture grow light
USD781492S1 (en) 2015-06-24 2017-03-14 Ip Holdings, Llc Horticulture grow light
USD804706S1 (en) 2016-01-05 2017-12-05 Ip Holdings, Llc Light fixture
USD825827S1 (en) 2016-01-05 2018-08-14 Hgci, Inc. Light fixture
USD804707S1 (en) 2016-01-07 2017-12-05 Ip Holding, Llc Light fixture
USD825828S1 (en) 2016-01-07 2018-08-14 Hgci, Inc. Light fixture
USD796728S1 (en) 2016-06-06 2017-09-05 Ip Holdings, Llc Light fixture
USD839471S1 (en) 2016-06-06 2019-01-29 Hgci, Inc. Light fixture
USD951525S1 (en) 2016-06-06 2022-05-10 Hgci, Inc. Light fixture
USD873467S1 (en) 2016-08-31 2020-01-21 Hgci, Inc. Light fixture
USD851804S1 (en) 2016-08-31 2019-06-18 Hgci, Inc. Light fixture
USD804078S1 (en) 2016-08-31 2017-11-28 Ip Holdings, Llc Light fixture
USD804079S1 (en) 2016-08-31 2017-11-28 Ip Holdings, Llc Light fixture
USD826467S1 (en) 2016-11-01 2018-08-21 Hgci, Inc. Light fixture
USD797350S1 (en) 2016-11-01 2017-09-12 Ip Holdings, Llc Light fixture
USD822882S1 (en) 2017-05-17 2018-07-10 Ip Holdings, Llc Horticulture grow light
USD950833S1 (en) 2017-09-14 2022-05-03 Hgci, Inc. Horticulture grow light
USD843049S1 (en) 2017-09-14 2019-03-12 Hgci, Inc. Horticulture grow light
USD842532S1 (en) 2017-10-25 2019-03-05 Hgci, Inc. Light fixture
USD871654S1 (en) 2017-10-30 2019-12-31 Hgci, Inc. Light fixture
USD996696S1 (en) 2017-10-30 2023-08-22 Hgci, Inc. Light fixture
USD985181S1 (en) 2017-11-03 2023-05-02 Hgci, Inc. Light fixture
USD848663S1 (en) 2017-11-03 2019-05-14 Hgci, Inc. Light fixture
USD995886S1 (en) 2017-11-07 2023-08-15 Hgci, Inc. Light fixture
USD848664S1 (en) 2017-11-07 2019-05-14 Hgci, Inc. Light fixture
USD942067S1 (en) 2017-11-08 2022-01-25 Hgci, Inc. Horticulture grow light
USD994961S1 (en) 2017-11-08 2023-08-08 Hgci, Inc. Horticulture grow light
USD848665S1 (en) 2017-11-08 2019-05-14 Hgci, Inc. Horticulture grow light

Also Published As

Publication number Publication date
BR7405553A (pt) 1976-03-03
DE2432970A1 (de) 1975-08-21
ES427848A1 (es) 1976-08-01
GB1461431A (en) 1977-01-13
FR2261475A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-09-12
IT1016308B (it) 1977-05-30
AU6983174A (en) 1975-12-11
FR2261475B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-01-27
CA983453A (en) 1976-02-10
BE817730A (fr) 1975-01-17

Similar Documents

Publication Publication Date Title
US3902059A (en) Light reflector system
US3701898A (en) Light reflector system
US4517631A (en) Indirect light reflector
JP2683399B2 (ja) 反射フィルム
KR0127478B1 (ko) 정상 출력을 제공하는 전등 기구
US3662165A (en) Luminaire reflector
US6585397B1 (en) Reflector for a projection light source
US5192962A (en) Converging reflector and liquid crystal display device
EP2034237A1 (en) Energy-saving lampshade with even light distribution
US6783261B2 (en) Optical assemblies for concentration of radial light distribution within confined luminaire packages
US1950380A (en) Lighting fixture
US4038542A (en) Luminaire for controlling locally unidirectional light
JPS6046483B2 (ja) 照明器具
US3123308A (en) Franck
JPS5834641Y2 (ja) 自動車用灯具
CN210831828U (zh) 线光源分体式反光组件及其灯具
CN211119197U (zh) 线光源一体式反光组件及其灯具
US3413460A (en) Optical anti-dazzling device
CN210801032U (zh) 线光源分体式过渡反光组件及其灯具
EP1376008B1 (en) Lighting device
EP3913278A1 (en) Lighting apparatus
US12152741B2 (en) Light emitting device having a mixing chamber
JPH025301A (ja) 自動車用前照灯
KR20110051681A (ko) 단방향 투사가 가능한 비대칭형 ｌｅｄ 렌즈 및 이를 사용하는 ｌｅｄ 램프
JPH02288004A (ja) 照明器具

Legal Events

Date Code Title Description
AS Assignment

Owner name: WIDE-LITE INTERNATIONAL CORPORATION, P.O. BOX 606,

Free format text: ASSIGNS THE ENTIRE INTEREST. SUBJECT TO AGREEMENT DATED JUNE 30,1983;ASSIGNOR:ESQUIRE, INC.;REEL/FRAME:004190/0815

Effective date: 19830916