EP0787943B1 - Reflektor mit einem mindestens eine rotationssymmetrische oder zylindrische Reflektorfläche aufweisenden Reflektor - Google Patents

Reflektor mit einem mindestens eine rotationssymmetrische oder zylindrische Reflektorfläche aufweisenden Reflektor Download PDF

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Publication number
EP0787943B1
EP0787943B1 EP97101272A EP97101272A EP0787943B1 EP 0787943 B1 EP0787943 B1 EP 0787943B1 EP 97101272 A EP97101272 A EP 97101272A EP 97101272 A EP97101272 A EP 97101272A EP 0787943 B1 EP0787943 B1 EP 0787943B1
Authority
EP
European Patent Office
Prior art keywords
reflector
luminaire according
component
luminous
diffusing component
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
EP97101272A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0787943A2 (de
EP0787943A3 (de
Inventor
Harald Dr. Hofman
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.)
Erco Leuchten GmbH
Original Assignee
Erco Leuchten GmbH
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
Priority claimed from DE19632665A external-priority patent/DE19632665C2/de
Application filed by Erco Leuchten GmbH filed Critical Erco Leuchten GmbH
Publication of EP0787943A2 publication Critical patent/EP0787943A2/de
Publication of EP0787943A3 publication Critical patent/EP0787943A3/de
Application granted granted Critical
Publication of EP0787943B1 publication Critical patent/EP0787943B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs

Definitions

  • the invention relates to a reflector lamp one at least one rotationally symmetrical or cylindrical Reflector surface having reflector according to the preamble of claim 1.
  • DE-PS 12 62 182 Such a reflector lamp is through the DE-PS 12 62 182 became known.
  • DE-PS 12 62 182 is the first time by Isaac Goodbar and Edison Price justified darklight technique described, which in their model concept no longer as before usual, from a point light source, but rather it starts from a luminous surface, that of an infinitesimally large number of individual Points of light is composed.
  • everyone's Beam of light outgoing is determined according to the DE-PS 12 62 182 calculated to thereby the course of curvature to determine the reflector.
  • the illuminant receiving room is in the back of the reflector and is through the extending into the reflector space intersecting extensions the free leg of the shielding angle is defined, which, as mentioned above, outside the reflector forms the shielding space.
  • the crossing each other Extensions of the free legs of all to the front Shielding angle applied to the reflector edge thus form the front boundary of the luminaire receptacle.
  • This limitation may differ from the luminous Surface of the illuminant to the light exit surface of the reflector cannot be reached if within the shielding room none directly from the Light source light reflected by the reflector should be visible.
  • the invention is based on the object Reflector lights, in particular darklight reflector lights according to DE-PS 12 62 182, largely regardless of the type of used To make bulbs.
  • this object solved in that the luminous surface of a separate flat surface that diffuses the light Component is formed, which is from the illuminant distanced and in the front cross-sectional boundary of the lamp receiving space or between the Cross-section limitation and the illuminant arranged is.
  • one is initially primary light source, e.g. a high-voltage halogen lamp with a strongly structured surface, to a secondary one Light source because the light diffuses the light separate flat component as the actual one primary illuminant can be seen.
  • primary light source e.g. a high-voltage halogen lamp with a strongly structured surface
  • the diffusely scattering component have grid-like light passage openings.
  • the grid-like light passage openings can by a diffusely scattering component made of transparent or be made of opaque material.
  • the diffusely scattering component can also Wire mesh exist in which the mesh openings the grid-like light openings form.
  • the invention provides that the diffuse scattering component made of translucent (translucent) opaque (frosted glass-like) material consists.
  • Another advantageous embodiment of the invention is characterized in that the diffusely scattering flat component from between air passage gaps forming individual elements is composed.
  • Such air passage gaps or air passage openings, which are also formed by light passage openings can cause air circulation, cooling a high-performance lamp serves.
  • a compact illuminant e.g. globular, piston-like or the like, in particular articulated Surface diffuses the invention scattering component an essentially rotationally symmetrical Body.
  • This can adapt to the intersecting extensions in the reflector interior protruding free leg of the Shielding angle, tapering towards the front, conical or be frustoconical.
  • the invention diffusely scattering component expediently one closed towards the front (i.e. towards the light exit surface), essentially trough-like or trough-like Body.
  • An embodiment of the invention which has been particularly preserved in practical use, is characterized in that the diffusely scattering Component at least one of the assembly handling serving air passage opening.
  • Another embodiment variant of the invention consists in that with a compact lamp with e.g. globular, piston-like or the like. Surface the one in essential rotationally symmetrical body diffusely scattering component the light passage opening has, which is rotationally symmetrical to Rotation axis of the lamp is arranged.
  • the diameter (e.g. with a rotationally symmetrical diffusely scattering component) or the width (e.g. with an essentially trough-like or trough-like diffusely scattering component) of the respective air passage opening can become the total diameter or to the total width of the diffusely scattering component behave like 1: 6 to 1: 7.
  • Such an air passage opening which expediently represents a finger passage opening, the easy handling of the diffusely scattering Component during assembly or disassembly serves, lighting technology is practically without influence. This is because everyone takes it for granted also light-transmitting air passage opening inside the lamp receiving space behind it front cross-section limit.
  • the according to this embodiment of the invention relatively large-sized air passage openings especially powerful high-voltage or low-voltage halogen lamps an extremely effective one Cooling.
  • That cooling is especially in combination with the aforementioned air passage opening according to Art a further development of a synergistic effect the invention improved in that between the outer edge of the diffusely scattering component and the an adjacent air passage gap is formed.
  • the embodiment of the invention is the air passage gap of Rest or attachment points between the diffuse scattering component and the reflector interrupted.
  • the reflector lamp is overall with the reference number Designated 10. It is e.g. around a recessed ceiling light 10, which in the ceiling cutout A of a building ceiling is used, the Ceiling face is designated with D.
  • the reflector lamp 10 has a having rotationally symmetrical reflector surface 11 Reflector 12.
  • the reflector 12 forms in the rear area its interior 20 a Illuminant receiving space 13 for an illuminant 14, for example a low or a high-voltage halogen lamp can represent.
  • the front area of the reflector 12 is from limited its front reflector edge 15, which extends flush with the ceiling view surface D.
  • the reflector edge 15 delimits a plane Light exit surface E.
  • the shielding space R becomes formed by the rotating around the axis of rotation y free leg S of the shielding angle ⁇ .
  • the Shielding angle ⁇ is formed between the free one Leg S and an outward extension 17 of the flat light exit surface E. This extension 17 is shown in the case of the Embodiment synonymous with the ceiling surface D.
  • the extensions S1 of the free legs S of the Shielding angles a extend into the interior 20 of the reflector 12 and cross each other a crossing point K. If you imagine that the leg extensions S1 about the axis of rotation y rotate, so the leg extensions form S1 above the crossing point K the surface of a Cone 19. This cone surface also represents the front boundary 19 of the lamp receiving space 13 represents.
  • the reflector surface 11 is designed such that Light emitted from the lamp receiving space 13 goes out, is only reflected so that this light is invisible within the shielding space R.
  • the flat component 18 is on individual Positions 21 or all around on the Reflector surface 11 in a manner not shown releasably attached, for example locked.
  • the flat component 11 can be of a body made of translucent opaque (i.e. a total of frosted glass) Material, for example from a Plastic injection molded component.
  • the flat Component 18 has air passage openings 22, which of the air circulation for cooling the lamp 14 serve.
  • the lamp 14 is practically a secondary Forms light source, provides the level Light-emitting surface E pointing pointed conical Surface of the flat component 18 a luminous Surface 16 represents the function of a primary Illuminant met. It is conceivable that flat component 18 in view of the high luminance one with a discontinuous surface Illuminant 14 a comparative and has a symmetrizing effect.
  • the dashed line provided on the left in the drawing Line F is intended to run the course of a wallwasher element representing reflector segments according to DE-PS 23 36 418 and show that the arrangement shown also a wallwasher reflector lamp can be.
  • the reflector 12 overall is an elongated cylindrical Component can represent which is symmetrical to the longitudinal median plane M in the paper plane of Drawing stretched in.
  • the illuminant 14 would be in this case also cylindrical, for example circular cylindrical.
  • Component 18 forms one with its narrower area Point down towards the light exit surface E. frustoconical hollow body, the small circular area forms an overall air passage opening 23.
  • the component 18 releasably at the locking or fastening points 21 is connected to the reflector 12.
  • the reflector 12 a with its long axis over a small partial circumferential length extending rectangular slot-like locking opening 24 on the with a radially short locking pin 25 with a flat rectangular Cross-section interacts.
  • the component 18 has on his Outer edge 27 a locking lug 26, which with the that relatively narrow curved concave reflector surface 11 snap-in cooperates.
  • the component 18 suitably consists of one certain resilience, inherently elastic Body. That is, component 18 adjusts Plastic injection molded part made of polycarbonate, which although translucent, that is translucent, however due to special pigment inclusions a frosted glass represents diffusely scattering flat body.
  • the longitudinal rectangular locking opening 24 ensures together with the locking pin 25 flat rectangular Cross-section with only two locking or fastening points 21 a tilt-free radial mounting position of component 18.
  • each air passage gap extends parallel and straight to the neighboring reflector surface.
  • the respective air passage gap 28 becomes only from the locking or fastening points 21 between the diffusely scattering component 18 and the reflector 12 interrupted.
  • the air passage opening 23 is also a Finger access opening represents that in simpler Wise pulling down and at the same time unlatching of component 18 from its mounting position on the reflector 12 allowed. Assembly of component 18 in reverse is just as simple, that the self-elastic component 18 with its upward-facing hollow side centrally in its Push in the mounting position.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Aerials With Secondary Devices (AREA)
EP97101272A 1996-02-05 1997-01-28 Reflektor mit einem mindestens eine rotationssymmetrische oder zylindrische Reflektorfläche aufweisenden Reflektor Expired - Lifetime EP0787943B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19603846 1996-02-05
DE19603846 1996-02-05
DE19632665A DE19632665C2 (de) 1996-02-05 1996-08-14 Leuchte mit einem Reflektor und einem diffus streuenden Bauteil
DE19632665 1996-08-14

Publications (3)

Publication Number Publication Date
EP0787943A2 EP0787943A2 (de) 1997-08-06
EP0787943A3 EP0787943A3 (de) 1998-02-04
EP0787943B1 true EP0787943B1 (de) 2001-08-22

Family

ID=26022590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101272A Expired - Lifetime EP0787943B1 (de) 1996-02-05 1997-01-28 Reflektor mit einem mindestens eine rotationssymmetrische oder zylindrische Reflektorfläche aufweisenden Reflektor

Country Status (6)

Country Link
US (1) US5957565A (ja)
EP (1) EP0787943B1 (ja)
JP (1) JP3567410B2 (ja)
AT (1) ATE204634T1 (ja)
DK (1) DK0787943T3 (ja)
ES (1) ES2162657T3 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6116749A (en) 1998-06-03 2000-09-12 Spaulding Lighting, Inc. Canopy luminaire assembly
US6568826B1 (en) * 1999-10-13 2003-05-27 Irwin Kotovsky Lighting apparatus and method
US6494596B1 (en) 2000-06-13 2002-12-17 Hubbell Incorporated Reflector with textured inner surface and prismatic outer surface
JPWO2005116518A1 (ja) * 2004-05-26 2008-04-03 多摩ファインオプト株式会社 液晶表示装置及びバックライト装置
DE102005022054C5 (de) * 2005-05-09 2013-01-17 Erco Gmbh Leuchte
US9976723B2 (en) * 2016-02-26 2018-05-22 Technical Consumer Products, Inc. Plastic downlight fixture having interlocking attachment features

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE225476C (ja) *
DE616604C (de) * 1929-08-08 1935-08-01 Jens Emanuel Magnus Hansen Beleuchtungsvorrichtung mit konzentrierter Lichtquelle
US2879377A (en) * 1955-09-26 1959-03-24 Oral W Layng Camera flash bulb shield and light control unit
DE1262182B (de) * 1963-02-07 1968-03-07 Edison Price Abgeschirmte Leuchte
DE2336418A1 (de) * 1973-07-13 1975-02-20 Erco Leuchten Deckenleuchte in abgehaengter decke
US5020252A (en) * 1985-05-31 1991-06-04 Boef J A G De Illuminated sign system
NO175399C (no) * 1992-03-31 1994-10-05 Osram Fabrikken As Diffusor til bruk i reklame-/informasjonstavler

Also Published As

Publication number Publication date
EP0787943A2 (de) 1997-08-06
US5957565A (en) 1999-09-28
JP3567410B2 (ja) 2004-09-22
ATE204634T1 (de) 2001-09-15
DK0787943T3 (da) 2001-10-08
JPH1012021A (ja) 1998-01-16
EP0787943A3 (de) 1998-02-04
ES2162657T3 (es) 2002-01-01

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