EP0750729B1 - Lampe a incandescence a reflecteur - Google Patents
Lampe a incandescence a reflecteur Download PDFInfo
- Publication number
- EP0750729B1 EP0750729B1 EP95915136A EP95915136A EP0750729B1 EP 0750729 B1 EP0750729 B1 EP 0750729B1 EP 95915136 A EP95915136 A EP 95915136A EP 95915136 A EP95915136 A EP 95915136A EP 0750729 B1 EP0750729 B1 EP 0750729B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- incandescent
- axis
- lamp according
- luminous element
- 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
Links
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000005286 illumination Methods 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 239000005401 pressed glass Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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
- the invention is based on a reflector lamp according to the preamble of claim 1.
- Such lamps are known from US Pat. No. 4,021,659 and from WO 92/17733.
- the lamps described there have an unorganized axial filament.
- the facets of the reflector are either flat or convex or concave.
- an axial filament divided into individual sections is described in FIGS. 10 to 13, which is intended for use in reflector lamps.
- the object of the present invention is to improve the homogeneity of the light radiation from reflector incandescent lamps, which are operated in particular with medium or high voltage.
- the homogeneity of the illumination in particular in the case of lamps with several lamp body sections, can be considerably improved if the facets of the reflector consist of concave cylinder segments. It is essential, however, that the axes of the cylinder segments are aligned so that they lie in planes that enclose the reflector axis. In particular, these axes should be aligned approximately parallel to the reflector axis.
- the particular advantage of the cylinder segments according to the invention is that this means that both lamps with an axial luminous element (in particular low-voltage lamps) and lamps whose luminous elements are composed of several approximately axially parallel sections, in particular high-voltage or medium-voltage lamps (this usually means voltages above 80 V) can be provided with homogeneous illumination.
- the individual sections of the luminous body should not be inclined by more than 15 °, preferably at most 10 °, against the reflector axis. Examples are V-shapes or W-shapes or similar, in particular also shapes that are varied in mirror symmetry, such as U and M shapes.
- very compact reflector lamps can also be realized by the features according to the invention.
- a halogen incandescent lamp is advantageously used for this purpose.
- the overall length can be shortened by the fact that for the the frame holding the lamp is dispensed with a quartz beam.
- the frame parts are held directly in the pinch.
- the luminous element can also be held by deforming the bulb (US Pat. No. 5,146,134).
- a reflector bulb 1 for general lighting is shown. It consists of a high-voltage halogen incandescent lamp 2 with an output of 50 W (230 V), which is attached to the top of a pressed glass reflector 3 via two long power leads, for example with a diameter of 63 mm (PAR 20) or 95 mm (PAR 30) .
- the reflector has a neck 4 which is fastened in a screw base 5.
- the arc length of the edge 6b of the facet facing the reflector opening is longer than that of the edge 6a facing the apex 6c.
- the Reflector formed from 17 rows of facets, the first and last rows having facets with a different structure.
- the arrangement of the cylinder facets can be seen better in the plan view or side view of FIGS. 2a and 2b which merely shows the reflector.
- the halogen incandescent lamp 2 has a W-shaped lamp 7, which is held by five frame wires 8, which are anchored in the pinch.
- the sections 9 of the filament are aligned approximately axially parallel; they are inclined at most 10 ° to the reflector axis.
- the reflector opening is covered by a lens 15.
- FIG. 3 shows the light distribution of a lamp with cylinder facets, the axis of symmetry of which includes the reflector axis.
- the homogeneity is much better than with a similar lamp, the cylinder facets (Fig. 4) are transverse to the reflector axis.
- FIG. 5 shows yet another example of an advantageously usable lamp 2 with a W-shaped luminous element 7 'with four luminous sections 9.
- the inner sections 9a are approximately the same length as the outer sections 9b. None of these sections is inclined more than 15 ° to the reflector axis.
- the facets according to the invention are each matched to the luminous element.
- the guide curve of the cylindrical facet surface can be selected to be circular, but also elliptical, parabolic or hyperbolic.
- the generatrix of the facet can lie parallel to its own axis of symmetry, but also in the manner of a truncated cone to be inclined to.
- this axis is defined by the center of the circle, with an elliptical generatrix e.g. through the midpoint between the two focal points, etc.
- the lateral surface of the cylindrical facet is usually aligned parallel to its axis of symmetry. However, it is not excluded that the lateral surface, corresponding to a cone, is inclined against the axis of symmetry.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Claims (11)
- Lampe à incandescence à réflecteur, constituée d'un réflecteur (3) et d'une lampe dont le corps (7) lumineux est sensiblement parallèle à l'axe du réflecteur, le réflecteur comportant une surface réfléchissante qui est formée essentiellement de facettes (6) semblables à des trapèzes, la majeure partie des facettes étant constituée de surfaces de cylindre convexes ayant un axe de symétrie associé. chaque axe de symétrie étant dans un plan qui passe par l'axe du réflecteur, caractérisée en ce que le corps (7) lumineux comporte plus d'un tronçon (8), au moins deux tronçons (8) étant disposés de manière peu près parallèle à l'axe, mais sans coïncider avec l'axe, et formant les tronçons éclairants.
- Lampe à incandescence à réflecteur suivant la revendication 1, caractérisée en ce que les axes de symétrie des surfaces de cylindre sont à peu près parallèles à l'axe du réflecteur.
- Lampe à incandescence à réflecteur suivant la revendication 1, caractérisée en ce que la lampe est conçue pour fonctionner à une tension d'au moins 80 V.
- Lampe à incandescence à réflecteur suivant la revendication 1, caractérisée en ce que le corps lumineux comprend deux tronçons à peu près parallèles à l'axe.
- Lampe à incandescence à réflecteur suivant la revendication 1, caractérisée en ce que le corps lumineux forme, par rapport au sommet (apex) du réflecteur un "W" ou un "V".
- Lampe à incandescence à réflecteur suivant la revendication 1, caractérisée en ce que les tronçons (8) du corps (7) lumineux ne sont pas inclinés de plus de 15°, notamment sont inclinés de moins de 10°, par rapport à l'axe du réflecteur.
- Lampe à incandescence à réflecteur suivant l'une des revendications précédentes, caractérisée en ce que la lampe est une lampe à incandescence à halogène.
- Lampe à incandescence à réflecteur suivant la revendication 7, caractérisée en ce que le corps lumineux est fixé par un support sans barre en quartz ou est fixé totalement sans support.
- Lampe à incandescence à réflecteur suivant la revendication 1, caractérisée en ce que la génératrice de la surface de cylindre s'étend parallèlement à son propre axe de symétrie ou est inclinée par rapport à cet axe à la façon d'un tronc de cône.
- Lampe à incandescence à réflecteur suivant la revendication 1, caractérisée en ce que la directrice de la surface de cylindre représente un segment d'une section conique, notamment d'un cercle, d'une ellipse, d'une parabole ou d'une hyperbole.
- Lampe à incandescence à réflecteur suivant la revendication 10, caractérisée en ce que la surface de cylindre est délimitée de manière similaire à un trapèze par quatre côtés, deux côtés étant formés par des directrices (6a, 6b) et deux côtés étant formés par des droites qui relient les extrémités des directrices.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4413370 | 1994-04-19 | ||
DE4413370A DE4413370A1 (de) | 1994-04-19 | 1994-04-19 | Reflektorglühlampe |
PCT/DE1995/000474 WO1995028599A1 (fr) | 1994-04-19 | 1995-04-07 | Lampe a incandescence a reflecteur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0750729A1 EP0750729A1 (fr) | 1997-01-02 |
EP0750729B1 true EP0750729B1 (fr) | 1997-12-29 |
Family
ID=6515722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95915136A Expired - Lifetime EP0750729B1 (fr) | 1994-04-19 | 1995-04-07 | Lampe a incandescence a reflecteur |
Country Status (8)
Country | Link |
---|---|
US (1) | US5757113A (fr) |
EP (1) | EP0750729B1 (fr) |
JP (1) | JPH09505687A (fr) |
CN (1) | CN1097195C (fr) |
CA (1) | CA2188044C (fr) |
DE (2) | DE4413370A1 (fr) |
HU (1) | HUT75480A (fr) |
WO (1) | WO1995028599A1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6080464A (en) * | 1995-11-20 | 2000-06-27 | Heraeus Med Gmbh | Reflector for a radiating luminous source and use of the same |
CN1049761C (zh) * | 1997-09-26 | 2000-02-23 | 叶乃光 | 红外线反射膜电灯 |
US6586864B2 (en) | 1998-05-21 | 2003-07-01 | General Electric Company | Reflector lamp having a reflecting section with faceted surfaces |
DE10018831B4 (de) * | 2000-04-15 | 2004-05-19 | Markus Korsch | Reflektoranordnung |
CN1207509C (zh) * | 2001-02-21 | 2005-06-22 | 皇家菲利浦电子有限公司 | 电灯 |
DE10302930A1 (de) * | 2003-01-24 | 2004-07-29 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Reflektor und Reflektorlampe |
US20040145910A1 (en) * | 2003-01-29 | 2004-07-29 | Guide Corporation (A Delaware Corporation) | Lighting assembly |
US20070279908A1 (en) * | 2004-08-27 | 2007-12-06 | Turhan Alcelik | General Lighting Armature |
DE102007016748A1 (de) * | 2007-04-07 | 2008-10-09 | Tetsuhiro Kano | Reflektor für eine Leuchte |
DE102007035528B9 (de) * | 2007-07-26 | 2012-02-09 | Erco Gmbh | Leuchte |
DE102007035396B4 (de) * | 2007-07-26 | 2011-04-14 | Erco Gmbh | Leuchte |
DE202007013205U1 (de) * | 2007-07-26 | 2008-12-11 | Erco Leuchten Gmbh | Leuchte |
US20090034271A1 (en) * | 2007-08-01 | 2009-02-05 | Markus Gorres | Light fixture |
DE112007003688A5 (de) | 2007-12-18 | 2010-11-11 | Osram Gesellschaft mit beschränkter Haftung | Elektrische Reflektorlampe mit zwei im wesentlichen parallelen Leuchtkörper-Abschnitten |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5714360Y2 (fr) * | 1974-12-27 | 1982-03-24 | ||
US4021659A (en) * | 1975-10-30 | 1977-05-03 | General Electric Company | Projector lamp reflector |
JPS5511709U (fr) * | 1978-07-10 | 1980-01-25 | ||
HU198254B (en) * | 1987-03-11 | 1989-08-28 | Tungsram Reszvenytarsasag | Projector lamp |
US4833576A (en) * | 1987-09-29 | 1989-05-23 | General Electric Company | Aluminum phosphate cement compositions and lamp assemblies containing same |
IT1248422B (it) * | 1989-12-06 | 1995-01-16 | Franco Berti | Faretto a lampada alogena, provvisto di un paraboloide riflettente in materiale ceramico |
US5146134A (en) * | 1990-03-15 | 1992-09-08 | Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen M.B.H. | Halogen incandescent lamp, particularly for operation from power networks, and method of its manufacture |
US5272408A (en) * | 1991-05-09 | 1993-12-21 | Gte Products Corporation | Lamp and reflector assembly |
DE69130738T2 (de) * | 1991-04-03 | 1999-09-02 | Flowil International Lighting (Holding) B.V. | Reflektor mit lampe |
JPH0562651A (ja) * | 1991-08-30 | 1993-03-12 | Toshiba Lighting & Technol Corp | ミラー付光源 |
US5367219A (en) * | 1991-11-18 | 1994-11-22 | U.S. Philips Corporation | Electric reflector lamp for use with IEC standard |
-
1994
- 1994-04-19 DE DE4413370A patent/DE4413370A1/de not_active Withdrawn
-
1995
- 1995-04-07 CA CA002188044A patent/CA2188044C/fr not_active Expired - Fee Related
- 1995-04-07 WO PCT/DE1995/000474 patent/WO1995028599A1/fr active IP Right Grant
- 1995-04-07 JP JP7526618A patent/JPH09505687A/ja active Pending
- 1995-04-07 EP EP95915136A patent/EP0750729B1/fr not_active Expired - Lifetime
- 1995-04-07 HU HU9602890A patent/HUT75480A/hu unknown
- 1995-04-07 US US08/727,610 patent/US5757113A/en not_active Expired - Lifetime
- 1995-04-07 CN CN95192651A patent/CN1097195C/zh not_active Expired - Lifetime
- 1995-04-07 DE DE59501176T patent/DE59501176D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59501176D1 (de) | 1998-02-05 |
JPH09505687A (ja) | 1997-06-03 |
DE4413370A1 (de) | 1995-10-26 |
HU9602890D0 (en) | 1996-12-30 |
CA2188044C (fr) | 2000-11-21 |
CN1146237A (zh) | 1997-03-26 |
EP0750729A1 (fr) | 1997-01-02 |
US5757113A (en) | 1998-05-26 |
WO1995028599A1 (fr) | 1995-10-26 |
CN1097195C (zh) | 2002-12-25 |
HUT75480A (en) | 1997-05-28 |
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