EP1610055A1 - Fokussierbarer Scheinwerfer mit asymetrischer Lichtverteilung - Google Patents
Fokussierbarer Scheinwerfer mit asymetrischer Lichtverteilung Download PDFInfo
- Publication number
- EP1610055A1 EP1610055A1 EP04014665A EP04014665A EP1610055A1 EP 1610055 A1 EP1610055 A1 EP 1610055A1 EP 04014665 A EP04014665 A EP 04014665A EP 04014665 A EP04014665 A EP 04014665A EP 1610055 A1 EP1610055 A1 EP 1610055A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- front lens
- lens
- headlamp
- headlight
- optical axis
- 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
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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
Definitions
- the invention relates to a headlamp according to the preamble of claim 1.
- headlamps are e.g. from US Pat. No. 4,823,243, EP 0 846 913 A1, EP 1 020 681 A2 or EP 1 215 437 A2.
- asymmetric Floodlights in which by an asymmetrical design of the reflector, the light distribution is changed in the desired sense. Such lights can then as so-called Foot ramps are used, for.
- Foot ramps To illuminate backgrounds from below and also the intensity through the asymmetric reflector mainly to the top of the background to steer. All of these asymmetric floodlights known from the prior art or foot ramps, however, are always so-called open-face lights without front lens. you are therefore not focusable. However, this means that for each individual application must be used exactly to this application suitable asymmetric floodlights. Becomes e.g.
- the invention is based on the object, a headlight with variable beam angle to provide targeted with an asymmetric emitting light intensity becomes.
- a headlamp according to claim 1 is the term "acentric arrangement of the front lens" in the sense of the present patent application To understand the following: The front lens is aligned so that the optical Main axis of the front lens runs parallel to the main optical axis of the headlight, however both mentioned main optical axes do not coincide (see also Fig. 1).
- the particular advantage of the headlamp invention is that the targeted Asymmetry in the light distribution combined with the focusability of the headlamp which is exceptionally flexible in use even in relation to a single Headlight has the consequence.
- an inventive one needs Headlight not to be replaced with this picture change. He only has to be focused on the new image size, i. his beam angle must be to the new Adjusted image size.
- the headlight according to the invention provides a stepless, uniform Light intensity transition.
- the total intensity of the available Light be fully utilized.
- smaller wattages can be used and the corresponding Energy loss can be kept lower.
- This also reduces the heat buildup accordingly. This is a special advantage considering that indoors and in studios there are still mostly incandescent spotlights be used, in which the effectively usable light only about 10% of the spent Energy equals.
- the focusable light in film, television, theater and photo applications is in the Generally characterized by a relatively small radiating surface and is usually made of some Distance used, resulting in a very clear shading.
- This kind The illumination is therefore generally supplemented by large-area lighting.
- surface lights are being used more and more often with fluorescent tubes work. However, these are usually designed so that they are more near to be illuminated Object must be used. Since the camera works one-eyed, the camera lens can capture captured subjects only more or less two-dimensionally. The depth effect a space that is natural in binocular vision is lost.
- a focusable headlamp is usually used as a directed light at an angle of about 45 ° deployed downward radiating, while it can assume that the directed Light practically never directly from the camera axis is used, but also in an angle that can often be 45 ° laterally, here larger angle variants which is then caused by a rotatable orientation of the front lens, as in the case of Embodiment of the headlamp according to the invention is provided according to claim 2, can be compensated substantially.
- angle variants can be compensated are due to the displaceability of the acentric front lens according to the embodiment the headlamp according to the invention according to claim 3.
- the radial distance between the optical Change the main axis of the front lens and the main optical axis of the headlight can be compensated substantially.
- a in Fig. 1 as the first embodiment of the invention illustrated headlight 1 has a housing 6.
- a lamp 2 and one of the lamp 2 are assigned Reflector 7 is arranged.
- the main optical axis of the headlamp 1 is shown in Fig. 1 with the Reference numeral 4 provided.
- the lamp 2 and the reflector 7 are movable in the headlight interior, so that the radiation angle of the headlight 1 can be changed.
- the variability of the radiation angle is known as such from the prior art and will not be explained here.
- the illustrated in Fig. 1 embodiment of the headlamp 1 according to the invention has Furthermore, a front lens 3.
- This front lens 3 is an azentrisch arranged collecting lens, whose main optical axis is provided in Fig. 1 with the reference numeral 5.
- the optical Main axis 5 of the front lens 3 is parallel to the main optical axis 4 of the headlamp 1, but does not coincide with this.
- the distance between the main optical axis 4 of the headlamp 1 and the main optical axis 5 of the front lens 3 is in Fig. 1 with the Numeral A provided.
- Fig. 2 shows a front view of the embodiment of the headlight according to the invention 1 of FIG. 1.
- the main optical axis 5 of FIG Front lens 3 and their distance A to the main optical axis 4 of the headlamp 1 not with located.
- FIG. 1 it can be clearly seen in Fig. 2 that in the illustrated here First embodiment of the headlamp 1 according to the invention the front lens. 3 partially protrudes beyond the housing 6 of the headlamp 1.
- the front lens 3 is mounted so that it is around the main optical axis of the headlamp can turn around. This is indicated in Fig. 2 by the arrows.
- this embodiment of the headlight according to the invention always remains unchanged.
- the front lens 3 of the embodiment of Fig. 1 is a perfectly ordinary symmetrical one Converging lens.
- the headlamp according to the invention come others Types of converging lenses used as a front lens.
- a converging lens as Inserted front lens which is designed as if it were from a larger lens in a way cut out in the cut out usable part of the front lens on one side tangent to the normal edge of the original larger lens. You can get that kind Imagine front lens as if it were as a part in the manner described from a larger Lentil been cut out
- the local reference numeral 8 designates an ordinary symmetrical condenser lens as Basic lens or as "imaginary" base lens.
- This basic lens 8 has its optical center Main axis 9.
- a converging lens 3 'as the front lens of the headlamp which is so is designed as if it had been cut out of the base lens 8 in a manner in which the cut-out usable part of the front lens 3 '- ie in Fig. 3, the front lens 3' as such - on the one side touches the normal edge of the base lens 8.
- the front lens 3 ' is not the major optical axis 9 with respect to the lens periphery more centrally arranged. This has for the purposes of these embodiments according to the invention Headlights have the advantage that the front lens 3 'of FIG. 3, unlike the front lens. 3 from the embodiments of FIGS. 1 and 2, not laterally partially over the headlight housing 6 must protrude.
- FIG. 4 An exemplary embodiment of such a front lens is shown in FIG. 4 and there provided with the reference numeral 3 "Also this mecanicsbeipiel a front lens 3" goes to the already known from Fig. 3, ordinary symmetrical converging lens (base lens) 8 with its main optical axis 9 back.
- the front lens 3 "of Fig. 4 is basically similarly cut out of the base lens, the ordinary symmetrical condenser lens 8 as the front lens 3 'of Fig. 3. Only the outer shape is slightly different.
- FIG. 5 shows how the front lens 3 "of FIG. 4 is mounted on the headlight housing 6 is and in this way to a further embodiment of the invention Headlamps leads.
- the Front lens 3 "of Fig. 4 and 5 is around the main optical axis of the headlight around rotatably mounted. This is indicated by the curved arrow in Fig. 5.
- the front lens 3 "radially back and forth with respect to the main optical axis of the headlamp be moved. This movement possibility is by the straight double arrow in Fig. 5th indicated.
- this embodiment of the headlight according to the invention is therefore the radial distance of the main optical axis of the front lens 3 "from the main optical axis of the headlight changeable.
- the invention is not limited to single-lens focusable headlights. Rather, it also includes apprislinsige or generally Lalinsige focusable headlamps where between the front lens and the lamp one or more lenses are arranged.
- Essential for the invention alone is the acentric Arrangement of the front lens with a focusable headlight. How possibly existing additional lenses are designed or arranged inside the headlight, this is for the present invention insignificant.
- the invention does not occur Headlamps of a certain power class limited.
- Headlamps as well as miniature headlights with a performance of some 10 watts as well as high performance headlamps with a power of some 10 kW.
Abstract
Description
- Fig. 1
- schematisch ein erstes Ausführungsbeispiel eines erfindungsgemäßen Scheinwerfers in Seitenansicht,
- Fig. 2
- schematisch eine Vorderansicht des Scheinwerfers von Fig. 1,
- Fig. 3
- schematisch eine Verdeutlichung der Gestaltung einer Frontlinse zur Verwendung in einem zweiten Ausführungsbeispiel des erfindungsgemäßen Scheinwerfers,
- Fig. 4
- schematisch eine Verdeutlichung der Gestaltung einer Frontlinse zur Verwendung in einem dritten Ausführungsbeispiel des erfindungsgemäßen Scheinwerfers, und
- Fig. 5
- schematisch eine Vorderansicht des dritten Ausführungsbeispiels des erfindungsgemäßen Scheinwerfers.
Claims (4)
- Scheinwerfer (1) mit veränderlichem Abstrahlwinkel mit einer im Scheinwerferinneren angeordneten Lichtquelle (2) und einer Sammellinse (3, 3', 3"), welche die Frontlinse des Scheinwerfers (1) ist, dadurch gekennzeichnet, daß die Frontlinse (3, 3', 3") azentrisch angeordnet ist.
- Scheinwerfer (1) nach Anspruch 1, dadurch gekennzeichnet, daß die Frontlinse (3, 3', 3") um die optische Hauptachse (4) des Schweinwerfers (1) herum drehbar gelagert ist.
- Scheinwerfer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Frontlinse (3") in radialer Richtung bezogen auf die optische Hauptachse (4) des Scheinwerfers verschiebbar ist.
- Scheinwerfer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Frontlinse (3', 3") so gestaltet ist, als wäre sie aus einer größeren Linse (8) in einer Weise ausgeschnitten, in der der ausgeschnittene benutzbare Teil der Frontlinse (3', 3") auf der einen Seite den normalen Rand der ursprünglichen größeren Linse (8) tangiert.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04014665.6A EP1610055B1 (de) | 2004-06-23 | 2004-06-23 | Fokussierbarer Scheinwerfer mit asymetrischer Lichtverteilung |
CNA2005100788398A CN1724924A (zh) | 2004-06-23 | 2005-06-23 | 具有非对称光线分布的可聚焦聚光灯 |
US11/159,136 US7347588B2 (en) | 2004-06-23 | 2005-06-23 | Focusable spotlight with asymmetrical light distribution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04014665.6A EP1610055B1 (de) | 2004-06-23 | 2004-06-23 | Fokussierbarer Scheinwerfer mit asymetrischer Lichtverteilung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1610055A1 true EP1610055A1 (de) | 2005-12-28 |
EP1610055B1 EP1610055B1 (de) | 2016-08-17 |
Family
ID=34925443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04014665.6A Expired - Fee Related EP1610055B1 (de) | 2004-06-23 | 2004-06-23 | Fokussierbarer Scheinwerfer mit asymetrischer Lichtverteilung |
Country Status (3)
Country | Link |
---|---|
US (1) | US7347588B2 (de) |
EP (1) | EP1610055B1 (de) |
CN (1) | CN1724924A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3165818A1 (de) * | 2015-11-06 | 2017-05-10 | Siteco Beleuchtungstechnik GmbH | Innen- oder aussenleuchte, insbesondere strassenleuchte, mit verlagerbarer freiformlinse |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWM364824U (en) * | 2008-09-19 | 2009-09-11 | Genius Electronic Optical Co Ltd | Optical lens body of bilateral asymmetry polarization illumination |
DE102011082844A1 (de) | 2011-09-16 | 2013-03-21 | Zumtobel Lighting Gmbh | Beleuchtungsanordnung insbesondere zur Rettungswegbeleuchtung |
EP3105497B1 (de) * | 2014-02-04 | 2018-03-21 | TARGETTI SANKEY S.p.A. | Beleuchtungsvorrichtung |
CN104676485B (zh) * | 2015-03-26 | 2017-07-04 | 成都恒坤光电科技有限公司 | 一种用于离散led光源的配光透镜及设备 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE386071C (de) | 1922-12-01 | 1923-12-14 | Schwabe & Co | Linsenscheinwerfer |
US2282167A (en) * | 1937-08-21 | 1942-05-05 | George M Cressaty | Flashlight |
US4823243A (en) | 1986-08-26 | 1989-04-18 | Dedotec Optronische Und Mechanische Systeme Gmbh | Miniature spotlight with extremely variable exit angle and constant even field of illumination |
EP0846913A1 (de) | 1996-12-04 | 1998-06-10 | Dedo Weigert Film GmbH | Scheinwerfer mit veränderlichem Abstrahlwinkel |
US5915829A (en) * | 1996-06-28 | 1999-06-29 | Hella Kg Hueck & Co. | Vehicle headlight |
EP0997684A2 (de) * | 1998-10-29 | 2000-05-03 | Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg | Scheinwerfer |
EP1020681A2 (de) | 1999-01-15 | 2000-07-19 | Dedo Weigert Film GmbH | Scheinwerfer mit veränderlichem Abstrahlwinkel und mit asphärischer Frontlinse |
FR2793001A1 (fr) * | 1999-04-29 | 2000-11-03 | Valeo Vision | Projecteur de vehicule automobile susceptible d'emettre un faisceau de croisement et un faisceau de croisement modifie pour circulation autoroutiere |
EP1215437A2 (de) | 2000-12-18 | 2002-06-19 | Dedo Weigert Film GmbH | Fokussierbarer Scheinwerfer mit Negativlinse |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2210554A (en) * | 1939-01-17 | 1940-08-06 | Charles L Beckman | Spotlight |
-
2004
- 2004-06-23 EP EP04014665.6A patent/EP1610055B1/de not_active Expired - Fee Related
-
2005
- 2005-06-23 CN CNA2005100788398A patent/CN1724924A/zh not_active Withdrawn
- 2005-06-23 US US11/159,136 patent/US7347588B2/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE386071C (de) | 1922-12-01 | 1923-12-14 | Schwabe & Co | Linsenscheinwerfer |
US2282167A (en) * | 1937-08-21 | 1942-05-05 | George M Cressaty | Flashlight |
US4823243A (en) | 1986-08-26 | 1989-04-18 | Dedotec Optronische Und Mechanische Systeme Gmbh | Miniature spotlight with extremely variable exit angle and constant even field of illumination |
US5915829A (en) * | 1996-06-28 | 1999-06-29 | Hella Kg Hueck & Co. | Vehicle headlight |
EP0846913A1 (de) | 1996-12-04 | 1998-06-10 | Dedo Weigert Film GmbH | Scheinwerfer mit veränderlichem Abstrahlwinkel |
EP0997684A2 (de) * | 1998-10-29 | 2000-05-03 | Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg | Scheinwerfer |
EP1020681A2 (de) | 1999-01-15 | 2000-07-19 | Dedo Weigert Film GmbH | Scheinwerfer mit veränderlichem Abstrahlwinkel und mit asphärischer Frontlinse |
FR2793001A1 (fr) * | 1999-04-29 | 2000-11-03 | Valeo Vision | Projecteur de vehicule automobile susceptible d'emettre un faisceau de croisement et un faisceau de croisement modifie pour circulation autoroutiere |
EP1215437A2 (de) | 2000-12-18 | 2002-06-19 | Dedo Weigert Film GmbH | Fokussierbarer Scheinwerfer mit Negativlinse |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3165818A1 (de) * | 2015-11-06 | 2017-05-10 | Siteco Beleuchtungstechnik GmbH | Innen- oder aussenleuchte, insbesondere strassenleuchte, mit verlagerbarer freiformlinse |
CN106969327A (zh) * | 2015-11-06 | 2017-07-21 | 西特科照明有限公司 | 用于内部或外部照明的灯、特别是路灯 |
Also Published As
Publication number | Publication date |
---|---|
US7347588B2 (en) | 2008-03-25 |
CN1724924A (zh) | 2006-01-25 |
EP1610055B1 (de) | 2016-08-17 |
US20050286249A1 (en) | 2005-12-29 |
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