EP0881425A2 - Lampe - Google Patents

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Info

Publication number: EP0881425A2
Authority: EP; European Patent Office
Prior art keywords: reflector; luminaire according; convergent; facets; divergent
Prior art date: 1997-05-26
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

EP98109485A

Other languages

German (de)

English (en)

Other versions

EP0881425A3 (fr

EP0881425B1 (fr

Inventor

Christian Bartenbach

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.)

1997-05-26

Filing date

1998-05-26

Publication date

1998-12-02

1998-05-26 Application filed by Individual filed Critical Individual

1998-12-02 Publication of EP0881425A2 publication Critical patent/EP0881425A2/fr

2000-02-23 Publication of EP0881425A3 publication Critical patent/EP0881425A3/fr

2003-03-19 Application granted granted Critical

2003-03-19 Publication of EP0881425B1 publication Critical patent/EP0881425B1/fr

2018-05-26 Anticipated expiration legal-status Critical

Status 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
- 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
- F21V7/0066—Reflectors for light sources specially adapted to cooperate with point like light sources; specially adapted to cooperate with light sources the shape of which is unspecified

Definitions

the invention relates to a lamp with a light source and a reflector, the at least one convergent and at least one divergent reflector section having.
Such reflectors are known. If that is different from the individual As a result, reflector sections can overlap illuminated surfaces Inaccuracies of the reflector are compensated and thus the Production tolerances are increased.
a faceted reflector surface has that Disadvantage that they are due to the facets in their appearance to the viewer restless and therefore less visually appealing. Furthermore, it can be done through reflection on the facets even outside the actual lighting angle of the lamp local glare are coming.
the object of the invention is to provide a new type of lamp, which is used in a excellent light distribution has a visually appealing appearance and has relatively large fault tolerances in manufacture.
this is achieved in a luminaire of the type mentioned at the outset by that at least one of the convergent or divergent reflector sections in is essentially provided with a facet covering the entire area faceted reflector section subsequent divergent or convergent Reflector section has a smooth inner surface.
the switch between the faceted and smooth surface runs essentially on the border between the two reflector sections.
the lamp has two Reflector sections, of which the inner, the light source adjacent Reflector section is convergent and faceted and the outer adjoining Reflector section is divergent and smooth.
the preferred embodiment shown in FIGS. 1 and 2 reflector according to the invention has an inner, the light source 1 adjacent convergent reflector section 2 and then a divergent outside Reflector section 3.
the reflector is made in one piece and the two Reflector sections 2, 3 are continuous and kink-free in the transition region 8 connected.
the term convergent reflector section means that two Rays 4, 5 converging on adjacent points of a cross-sectional line Hit reflector section 2, intersect in the further beam path. Rays, that point to adjacent points of a cross-sectional line of the divergent Reflector section 3 hit, on the other hand, run in the further beam path apart.
the angle of the beam changes in the transition area 8 between the two sections 2, 3 not.
the angle of reflection of the most divergent Reflector section 3 reflected rays 9-14 decrease from the inside to the outside, so that the angle of reflection ⁇ of the outermost beam 14 is again approximately 0 °.
the area illuminated by the lamp as a whole is therefore both Reflector sections 2, 3 fully illuminated, the im Transition area 8 between the two reflector sections 2, 3 reflected Rays lie just on the outer edge of the illuminated area.
the reflector section 2 has facets 15 provided while the reflector section 3 is smooth, i.e. is unfacetted.
the facets 15 of section 2 can be designed as cylinder, torus or spherical surfaces and be concave, convex or mixed concave / convex.
the arrangement of the facets can be plaster-shaped (with spherical facets), or the facets can according to the embodiment shown along radial lines 16 of the Be arranged reflector.
the facets are designed such that a parallel beam for example expanded to 2x15 °.
the optimal degree of expansion is from depending on the shape of the total reflector and is usually between 2x10 ° and 2x40 ° between 2x15 ° and 2x30 °.
the beam expansion caused by the faceting 15 causes the Structure of the light source 1 is not mapped onto the surface illuminated by the lamp becomes. Such an image could be by the reflector section 3 alone are caused, the superimposition with the light from the reflector section 2 causes however that no or hardly such an annoying image from Viewer can be perceived. Since the faceting 15 just at the Border between the two reflector sections 2, 3 ends, the from Edge area of the faceting 15 reflected rays straight to the edge of the pictured illuminated area. Any the edge area of the faceting touch any another location of the reflector, this edge area would be within the Illuminated area are mapped and become perceptible and distracting Discontinuities in illuminance result. At the edge of the illuminated On the other hand, such discontinuities do not disturb the surface, since there is already a discontinuity in Form of a change between light and dark.
the reflector surface is used for both the faceted and the smooth area preferably specular or high-gloss, for example in the form of shiny or anodized aluminum.
the reflector according to the invention makes it uniform To achieve light distribution with relatively large manufacturing tolerances, further from Avoid facets of local glare and optically special to provide an appealing reflector.
a reflector according to the invention can also have more than two reflector sections have, the total area illuminated by the lamp several times can be illuminated so that there are deviations from the optimal light distribution find out even better. At least one of the sections is faceted and at least one of the sections is smooth, alternating between faceted and smooth in the border area between a converged and a diverged section of the reflector.

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Optical Elements Other Than Lenses (AREA)
Non-Portable Lighting Devices Or Systems Thereof (AREA)
Vessels And Coating Films For Discharge Lamps (AREA)

EP98109485A 1997-05-26 1998-05-26 Lampe Expired - Lifetime EP0881425B1 (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
AT89197		1997-05-26
AT89197		1997-05-26
AT891/97		1997-05-26

Publications (3)

Publication Number	Publication Date
EP0881425A2 true EP0881425A2 (fr)	1998-12-02
EP0881425A3 EP0881425A3 (fr)	2000-02-23
EP0881425B1 EP0881425B1 (fr)	2003-03-19

Family

ID=3502218

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP98109485A Expired - Lifetime EP0881425B1 (fr)	1997-05-26	1998-05-26	Lampe

Country Status (3)

Country	Link
EP (1)	EP0881425B1 (fr)
AT (1)	ATE235020T1 (fr)
DE (1)	DE59807513D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2000047931A1 (fr) *	1999-02-13	2000-08-17	Abacus Holdings Limited	Reflecteur
DE10018831A1 (de) *	2000-04-15	2001-10-25	Markus Korsch	Reflektoranordnung
EP1035370A3 (fr) *	1999-03-09	2001-10-31	Schott Auer GmbH	Conception de l' optique d' un réflecteur pour refléchir des rayons lumineux
EP1684005A1 (fr) *	2004-12-06	2006-07-26	Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH	Lampe à décharge à haute pression à culot unique
DE102013221163A1 (de) *	2013-10-18	2015-04-23	Zumtobel Lighting Gmbh	Optisches System für eine LED-Lichtquelle sowie Leuchte mit einem solchen optischen System

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3401258A (en) *	1966-10-17	1968-09-10	Edwin F Guth Company	Luminaire reflector
US4453203A (en) *	1982-07-19	1984-06-05	Harvey Hubbell Incorporated	Lighting fixture reflector
AT386671B (de) *	1986-03-24	1988-09-26	Zumtobel Ag	Leuchte mit einer lampe und mit einem reflektor
DE4237192A1 (de) *	1992-11-04	1994-05-05	Hoffmeister Leuchten Kg	Elektrische Leuchte

1998
- 1998-05-26 EP EP98109485A patent/EP0881425B1/fr not_active Expired - Lifetime
- 1998-05-26 AT AT98109485T patent/ATE235020T1/de active
- 1998-05-26 DE DE59807513T patent/DE59807513D1/de not_active Expired - Lifetime

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2000047931A1 (fr) *	1999-02-13	2000-08-17	Abacus Holdings Limited	Reflecteur
EP1035370A3 (fr) *	1999-03-09	2001-10-31	Schott Auer GmbH	Conception de l' optique d' un réflecteur pour refléchir des rayons lumineux
EP1643186A1 (fr) *	1999-03-09	2006-04-05	Schott AG	Conception de l' optique d' un réflecteur pour refléchir des rayons lumineux
DE10018831A1 (de) *	2000-04-15	2001-10-25	Markus Korsch	Reflektoranordnung
DE10018831B4 (de) *	2000-04-15	2004-05-19	Markus Korsch	Reflektoranordnung
EP1684005A1 (fr) *	2004-12-06	2006-07-26	Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH	Lampe à décharge à haute pression à culot unique
DE102013221163A1 (de) *	2013-10-18	2015-04-23	Zumtobel Lighting Gmbh	Optisches System für eine LED-Lichtquelle sowie Leuchte mit einem solchen optischen System

Also Published As

Publication number	Publication date
ATE235020T1 (de)	2003-04-15
DE59807513D1 (de)	2003-04-24
EP0881425A3 (fr)	2000-02-23
EP0881425B1 (fr)	2003-03-19

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