EP0518775A1 - Modulares, reflektierendes Teil für eine Beleuchtungsvorrichtung und Beleuchtungsvorrichtung mit solchen Teilen - Google Patents

Modulares, reflektierendes Teil für eine Beleuchtungsvorrichtung und Beleuchtungsvorrichtung mit solchen Teilen Download PDF

Info

Publication number
EP0518775A1
EP0518775A1 EP92401629A EP92401629A EP0518775A1 EP 0518775 A1 EP0518775 A1 EP 0518775A1 EP 92401629 A EP92401629 A EP 92401629A EP 92401629 A EP92401629 A EP 92401629A EP 0518775 A1 EP0518775 A1 EP 0518775A1
Authority
EP
European Patent Office
Prior art keywords
ribs
lighting device
reflecting surface
reflecting
elements
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.)
Granted
Application number
EP92401629A
Other languages
English (en)
French (fr)
Other versions
EP0518775B1 (de
Inventor
Mardick Baliozian
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0518775A1 publication Critical patent/EP0518775A1/de
Application granted granted Critical
Publication of EP0518775B1 publication Critical patent/EP0518775B1/de
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
    • F21V7/005—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
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/37—U-shaped
    • 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
    • F21Y2113/00—Combination of light sources

Definitions

  • the invention relates to a modular reflector element for a lighting device and to a lighting device comprising such elements.
  • These lighting devices are particularly suitable for the fields of photography, cinema, television, video and entertainment in general.
  • the present invention aims to avoid the drawbacks of existing lighting fixtures, by creating a new modular reflective element allowing a simple construction of lighting device from such elements.
  • the subject of the invention is a modular reflector element for a lighting device, capable of receiving an elongated light source, such as a cylindrical tubular lamp, in a U or the like, comprising a reflecting surface on its front face facing the source. of light, a series of ribs on its rear face, and lateral edges, characterized in that the lateral edges are constituted by end ribs and are inclined backwards relative to a frontal plane approaching one the other.
  • an elongated light source such as a cylindrical tubular lamp, in a U or the like
  • the invention also relates to a lighting device comprising at least two modular reflective elements characterized in that the reflective elements are contiguous and fixed to each other by a series of junction members cooperating with grooves carried by the reflective elements.
  • a light box essentially consisting of two reflector elements 1,2 arranged aligned on the same frontal plane 3, and two raised framing bands 4,5 extending substantially perpendicular to the frontal plane 3.
  • the two reflective elements 1 and 2 are contiguous and fixed to each other by a junction strip 6 or a series of junction members, cooperating with grooves carried by the reflective elements.
  • Each reflector element 1, 2 consists of an extruded profile having a reflecting surface 7 on its front face facing the light source symbolized by a tubular lamp 8, and having on its rear face a series of ribs.
  • the end ribs constitute the side edges 9, 10 of the reflecting elements. They have slots or grooves 11, 12 intended to receive, for example, the junction strips 6 between two reflective elements 1,2, or the junction strips 13 between a reflective element 1,2 and a framing strip 4,5 corresponding.
  • the side edges 9, 10 of the reflector elements are inclined rearward relative to the frontal plane 3, approaching one from the other.
  • ribs 14, 15 have grooves and delimit between them a cavity, so as to allow the fixing of the reflective element itself or of the light box on a rear support, or the fixing of an accessory on the reflective element. Between two contiguous reflecting elements is a similar cavity.
  • the framing strips 4.5 have a base 17 having a groove 18 to secure it to the neighboring reflective element by means of the joining strip 13.
  • the outside of the framing strip has similar cavities to those of the reflector elements, or of a different shape, in order to be able to fix a support there and adjust it by sliding until the center of gravity of the light box is found.
  • the inner side of the framing strips 4,5 is provided with different portions which correspond to different functions.
  • the surface 19 located near the light source is advantageously inclined, and it has a high reflecting power to return forward the light coming directly from the lamp 8, or already reflected by the reflecting element 1
  • the surface 20 extends perpendicular to the frontal plane 3.
  • This surface 20 carries a certain number of ribs such as 21, 22, 23, 24. Between the first two ribs 21, 22, an accessory such as 'a spot grid. Between the ribs 22 and 23 on the one hand, 23 and 24 on the other hand, accessories such as a diffuser or a color filter can be inserted. Provision may also be made to insert therein a transparent, translucent or opalescent plate of glass or plastic, in particular when the light box is used to examine X-ray drawings or transparent color views, for example. Each of the framing strips consists of at least one profiled part.
  • the spacing of the ribs 22, 23 is advantageously adjustable by means of tapped pieces in squares fixed by means of adjustable screws sliding in corresponding oblong holes.
  • brackets can constitute the ribs 22 or 23 or the ribs 22, 23 can be fixed there.
  • an accessory support frame is fixed at the location of the ribs 22 or 23.
  • This frame is preferably adjustable in position and in spacing inside said ribs by means of screws cooperating with holes oblongs adjacent to or formed directly in said ribs.
  • the grooves 11, 12 of the reflecting elements 1, 2 and the grooves 18 of the framing strips are suitable for receiving different forms of joining strips or joining members, depending on the relative inclination to be given to the reflecting elements and to the framing bands.
  • the framing strips are perpendicular to the front face 3 of the reflecting surface.
  • two reflecting elements 1, 2 are arranged with their front planes 25, 26 making an obtuse angle open towards the rear, that is to say that they constitute a convex reflecting surface.
  • FIG. 3 on the contrary, they constitute a concave reflecting surface.
  • the reflecting elements 1, 2 are shown with a reflecting surface with a curvilinear section. Their structure is also produced differently while keeping the same general principle of an extruded form.
  • sheaths 47 intended to receive self-tapping screws. End plates are placed at the ends of the reflector elements 1, 2 and are crossed by the screws to ensure the rigidity of the assembly.
  • the connecting strip 6 is designed to receive a fixing head 48 capable of being placed opposite the center of gravity of the lighting device.
  • This fixing head can be linked to a support axis to ensure the axial holding of the device which can then be oriented by rotation on the axis.
  • the reflective elements are represented four in number, they constitute a slightly concave reflecting surface, and the framing strips 4, 5 are mutually parallel, at least for their surface 20 which carries the ribs intended to receive the accessories to be placed parallel to the overall frontal plane 27.
  • Light boxes according to the invention can have a wide variety of shapes, open or closed, for example a square, hexagonal, orthogonal, or other shape.
  • the reflective elements are arranged in a convergent manner. In FIG. 5B, they are divergent. In the two FIGS. 5A and 5B, only four reflective elements are shown, but they can be six or eight and constitute a generally cylindrical reflecting surface.
  • FIG. 6 a lighting device according to the invention is seen, in which four reflective elements are provided, each equipped with a tubular U-shaped lamp.
  • the framing strips 4 and 5 constitute two sides of the box. light.
  • the upper side 28 is pivotally mounted on its hinge so as to allow the insertion of the accessories between the grooves of the framing strips 4 and 5.
  • the lower side 29 delimits the part of the light box which comprises the electrical connections, the sockets for tubular lamps and electrical connection accessories.
  • two pivots are provided such as 30, for fixing a stirrup 31 itself secured to a support 32 (visible in FIG. 8), for carrying the device balanced lighting: the axes of rotation passing through the pivots, and through the support 32, both passing through the center of gravity of the device.
  • the lighting device On the free edges of its front opening, the lighting device according to the invention carries articulated accessories supports. These supports are for example pliers 33, 34 which are generally swivel.
  • the accessories 35, 36 can be reflecting shutters, light absorbing shutters, diffusers, color filters, a light reflecting box (FIG. 7), a lens or objective mount 40, (FIG. 8), irregularly cut screens known as gobos, or whatever.
  • a passage 37 is provided for fixing an axis of a reflecting or diffusing umbrella.
  • a reflective element 1 can have a curved line profile or a broken line profile.
  • the front surface 7 of the reflective element is intended to reflect the light coming from the tubular light source 8, in a way preventing this light returning on the light source 8 itself.
  • the light coming from the source 8 is reflected one or more times so as to be returned towards the front.
  • the reflecting surface 7 can be curved or angular.
  • two profile portions should be distinguished: the first between the edge 42 and the point 43 corresponding to the tangent to the two circles 41 and 44, the second between the point 43 and the outer edge 45 of the reflector.
  • the profile is an involute of the circle 41
  • the profile is an involute of the circle 44.
  • a tangent to the circle is perpendicular to the profile. All the light coming from the tube 8 will be oblique to the tangent to the circle and will be reflected beyond this tangent, without being able to return to the tube.
  • the arcs 42-43 and 43-45 are substantially circular and have a small deviation from the theoretical involute profiles: the radius of the second arc 43-45 is greater than the first circular arc 42-43 by a factor corresponding substantially to the ratio of the delimited segments to the common tangent; the centers of the two arcs are determined to minimize the difference between the arcs and the theoretical involute profiles.
  • this broken line is an approximation of the previous curved line and the results are similar.
  • the reflective element 1 has a gutter shape comprising, along its longitudinal center line a projecting part 46 (FIG. 1) disposed directly above the axis of the tubular lamp 8.
  • This projecting part 46 is V-shaped whose opening is turned rearward.
  • the reflector element consists of two symmetrical parts each corresponding to one half of the reflector.
  • the reflective elements as well as the framing strips are advantageously made of extruded aluminum alloy, but other products can be used.
  • the same profiles can be used regardless of their length. It is not necessary to provide a special tool since the profiles are cut to the desired length according to the dimensions of the box: the joining strips can be folded sheets or extruded profiles.
  • the width of the light boxes can vary without incurring any tooling or storage costs and without affecting its depth since as many modular reflective elements can be attached to it as necessary to obtain the desired width.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP92401629A 1991-06-12 1992-06-12 Modulares, reflektierendes Teil für eine Beleuchtungsvorrichtung und Beleuchtungsvorrichtung mit solchen Teilen Expired - Lifetime EP0518775B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9107124A FR2677736B1 (fr) 1991-06-12 1991-06-12 Dispositif d'eclairage a lampes tubulaires et reflecteur.
FR9107124 1991-06-12

Publications (2)

Publication Number Publication Date
EP0518775A1 true EP0518775A1 (de) 1992-12-16
EP0518775B1 EP0518775B1 (de) 1995-07-26

Family

ID=9413721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92401629A Expired - Lifetime EP0518775B1 (de) 1991-06-12 1992-06-12 Modulares, reflektierendes Teil für eine Beleuchtungsvorrichtung und Beleuchtungsvorrichtung mit solchen Teilen

Country Status (4)

Country Link
US (1) US5199786A (de)
EP (1) EP0518775B1 (de)
DE (1) DE69203660T2 (de)
FR (1) FR2677736B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079176A1 (de) * 1999-08-25 2001-02-28 Leon Alejandro Lassovsky Leuchte
WO2021196604A1 (zh) * 2020-04-02 2021-10-07 深圳市洲明科技股份有限公司 一种面罩及显示模组

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5471372A (en) * 1993-12-06 1995-11-28 Ardco, Inc. Lighting system for commercial refrigerator doors
US5420770A (en) * 1994-02-22 1995-05-30 Goldman; Neil M. Lighting fixture
CA2175554C (en) * 1996-05-01 2000-07-11 Dean Grierson Indirect asymmetric luminaire assembly
US6179443B1 (en) 1998-06-30 2001-01-30 Commercial Refrigerator Door Company, Inc. Fluorescent lamp lens assembly
US6254257B1 (en) 1998-11-16 2001-07-03 Progress Lighting Recessed light fixture and reflector
US6899445B2 (en) * 2002-08-07 2005-05-31 Hubbell Incorporated Attachment for a reflector in a light assembly
US20050036331A1 (en) * 2002-08-09 2005-02-17 Crepeau Jean Phillipe Modular headlight structure for vehicle and a method for manufacturing the same
DE102006052756A1 (de) * 2006-11-08 2008-05-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Beleuchtungsvorrichtung mit einer Lampe und einem Reflek-tor
US20090141507A1 (en) * 2007-12-03 2009-06-04 Compton James P Lighting fixture channel with diffuser
US8002446B1 (en) 2008-06-09 2011-08-23 Koninklijke Philips Electronics N.V. Virtual direct and indirect suspended lighting fixture
US7950833B1 (en) 2008-06-17 2011-05-31 Genlyte Thomas Group Llc Splay frame luminaire
FR2963836B1 (fr) * 2010-08-11 2017-12-29 Altawak Boite a lumiere pour la capture d’images d’un objet et sa visualisation animee
US20140268627A1 (en) * 2013-03-14 2014-09-18 Victor M. Contreras, JR. Apparatus and Method for a Suspended Track and Curtain
CN103244916B (zh) * 2013-05-21 2018-03-27 杭州华普永明光电股份有限公司 发光模组间的连接结构、安装方法及led照明装置
CN103471050A (zh) * 2013-09-29 2013-12-25 昆山凯诺尔金属制品有限公司 一种内孔壁上带有散热片的铝挤型灯管支架
CN103471051A (zh) * 2013-09-29 2013-12-25 昆山凯诺尔金属制品有限公司 一种支撑臂顶部带有凹槽的铝挤型灯管支架
CN103486552A (zh) * 2013-09-29 2014-01-01 昆山凯诺尔金属制品有限公司 一种支撑臂上带有通孔的铝挤型灯管支架
USD732234S1 (en) * 2014-03-26 2015-06-16 Elite Lighting Body for light fixture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT359163B (de) * 1978-05-26 1980-10-27 Zumtobel Ag Langgestreckter reflektor fuer leuchtstoff- lampenleuchten
FR2492949A1 (fr) * 1980-10-27 1982-04-30 Infraroedteknik Ab Dispositif reflecteur
DE3215026A1 (de) * 1982-04-22 1984-03-15 Thorn Emi Beleuchtungsgesellschaft mbH, 5760 Arnsberg Leuchte
WO1991007621A1 (de) * 1989-11-19 1991-05-30 Buser Hanns J Leuchte

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222368A (en) * 1977-12-22 1980-09-16 General Extrusions, Inc. Solar energy collection apparatus and system
US4423926A (en) * 1982-04-14 1984-01-03 Stolpin Roger M Parabolic collector
US4587951A (en) * 1983-04-19 1986-05-13 Stellar Energy Systems, Inc. Circular arc solar concentrator
DK154581C (da) * 1986-05-01 1989-04-24 Jann Petersen Armatur til optagelse af lysstofroer
DE3634156A1 (de) * 1986-10-07 1988-04-21 Stefan Tauschek Flaechenleuchte
US4848320A (en) * 1987-09-11 1989-07-18 Burns-Milwaukee, Inc. Solar oven
US4947305A (en) * 1989-05-19 1990-08-07 Vector Technical Group, Inc. Lamp reflector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT359163B (de) * 1978-05-26 1980-10-27 Zumtobel Ag Langgestreckter reflektor fuer leuchtstoff- lampenleuchten
FR2492949A1 (fr) * 1980-10-27 1982-04-30 Infraroedteknik Ab Dispositif reflecteur
DE3215026A1 (de) * 1982-04-22 1984-03-15 Thorn Emi Beleuchtungsgesellschaft mbH, 5760 Arnsberg Leuchte
WO1991007621A1 (de) * 1989-11-19 1991-05-30 Buser Hanns J Leuchte

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079176A1 (de) * 1999-08-25 2001-02-28 Leon Alejandro Lassovsky Leuchte
WO2021196604A1 (zh) * 2020-04-02 2021-10-07 深圳市洲明科技股份有限公司 一种面罩及显示模组

Also Published As

Publication number Publication date
US5199786A (en) 1993-04-06
DE69203660T2 (de) 1996-01-18
FR2677736B1 (fr) 1994-11-25
DE69203660D1 (de) 1995-08-31
EP0518775B1 (de) 1995-07-26
FR2677736A1 (fr) 1992-12-18

Similar Documents

Publication Publication Date Title
EP0518775B1 (de) Modulares, reflektierendes Teil für eine Beleuchtungsvorrichtung und Beleuchtungsvorrichtung mit solchen Teilen
EP0048185B1 (de) Multi-Effekt-Leuchte, insbesondere zur Anwendung als Scheinwerfer für Photographie, Film und Fernsehen oder als Beleuchtungsvorrichtung
FR3015002A1 (fr) Dispositif d'eclairage
FR2760802A1 (fr) Dispositif d'assemblage et element modulaire le comprenant
FR2760801A1 (fr) Dispositif d'assemblage et element modulaire le comprenant
FR2790308A1 (fr) Projecteur a occulteur aere pour vehicule automobile
EP3251895B1 (de) Vorrichtung zur beleuchtung und/oder signalisierung für kraftfahrzeug
FR2700202A1 (fr) Fenêtre pour un projecteur.
EP1089034A1 (de) Beleuchtungseinrichtung mit Lichtleitstab für Kraftfahrzeug
EP0648972B1 (de) Leuchte mit verstellbarer Optik
FR2847615A1 (fr) Store a lames orientables
FR2711219A1 (fr) Luminaire à réflecteur latéral orientable.
BE1012778A6 (fr) Dispositif d'eclairage.
FR2657971A1 (fr) Diffuseur pour photomacrographie.
FR2485691A1 (fr) Grille reflechissante pour luminaire
FR2738623A1 (fr) Luminaire muni d'un louvre perfectionne
EP4288837A1 (de) Lichtkasten für fotografie und videografie
FR2468144A1 (fr) Procede de fabrication d'un dispositif pouvant etre utilise notamment comme projecteur pour la photographie ou la television et dispositif fabrique selon ce procede
FR2753559A1 (fr) Vitrine d'affichage
EP0493635B1 (de) Verteiler von elektromagnetischer Strahlung, insbesondere Projektionsschirm
CH718289A2 (fr) Caisson lumineux pour la photographie et la vidéographie.
EP0158983A2 (de) Lichtreflektor für Foto- oder Filmaufnahmen
FR2738923A1 (fr) Dispositif de montage pour fibre optique
FR2799272A1 (fr) Conduit de lumiere a lames transparentes juxtaposees, et projecteur le comportant
FR2746900A1 (fr) Projecteur a barreau optique pour vehicule automobile

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17P Request for examination filed

Effective date: 19930305

17Q First examination report despatched

Effective date: 19940420

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19950726

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19950726

REF Corresponds to:

Ref document number: 69203660

Country of ref document: DE

Date of ref document: 19950831

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950908

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990519

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990609

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000612

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010403

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010430

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030228

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST