EP1241399A2 - Optical system for stepped lens projector - Google Patents
Optical system for stepped lens projector Download PDFInfo
- Publication number
- EP1241399A2 EP1241399A2 EP02003626A EP02003626A EP1241399A2 EP 1241399 A2 EP1241399 A2 EP 1241399A2 EP 02003626 A EP02003626 A EP 02003626A EP 02003626 A EP02003626 A EP 02003626A EP 1241399 A2 EP1241399 A2 EP 1241399A2
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- EP
- European Patent Office
- Prior art keywords
- reflector
- optical system
- lens
- lamp
- light
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- 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.)
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Classifications
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- 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
- F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
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- 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
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- 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
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
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- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
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- 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 an optical system for stepped lens headlights with a ellipsoidal reflector, a lamp and at least one step lens.
- the parts relevant to lighting technology in conventional optical systems for Step lens headlights are lamp, step lens (Fresnel lens) and spherical Auxiliary reflector.
- the lamp filament is located essentially unchangeable in the center of the sphere of the spherical auxiliary reflector. Thereby part of the light emitted by the lamp is reflected back into it and supports the light emission in the front half space. This after light directed at the front is focused by the step lens.
- the degree of light beam depends on the distance between the step lens and the lamp. If the lamp filament is at the focal point of the stepped lens, it results the closest beam of light. This creates a quasi-parallel beam path, also called spot. By shortening the distance between the stepped lens and the lamp becomes the opening angle of the emerging Light beam steadily enlarged. This creates a divergent beam path, also called flood.
- a disadvantage of such headlights is the poor light yield in particular in the spot position, since there is only a relatively small solid angle range the lamp is captured by the step lens. It also has an effect disadvantageous from the fact that the light reflected by the spherical reflector a large part hits the lamp filament itself, is absorbed there and the Lamp filament additionally heated.
- the object of the invention is to provide an optical system for stepped lens headlights with an improved light efficiency especially in spot, but also in the flood position while maintaining the uniformity of the illuminance to be provided in the light field.
- the task is solved by an optical system for stepped lens headlights with an ellipsoidal reflector, a lamp and at least one Step lens, the distance between the step lens and reflector to the Distance between lamp and reflector according to the one to be set Opening angle of the light beam emerging from the headlight in one defined dependency.
- an ellipsoidal reflector with a large aperture is provided.
- the spot position is set by the lamp filament being in the reflector side Focus of the ellipsoid is located. That reflected by the reflector Light is almost completely at the focal point of the ellipsoid, which is remote from the reflector united.
- the lamp filament located in the focal point on the reflector side is shown in the focal point of the ellipsoid far from the reflector. The reflected light essentially does not hit the lamp filament.
- the focal point of the stepped lens coincides with the focal point of the ellipsoid.
- the light reflected by the reflector is almost entirely from the step lens captured and emitted to the front as a narrow spot light beam.
- the light output is therefore considerably larger than with a conventional stepped lens headlight.
- the opening angle of the light beam emerging from the step lens can be enlarged almost arbitrarily by the lamp position in relation to the Reflector on the one hand and the distance of the stepped lens to the reflector on the other is changed in a suitable manner. So that the good properties more conventional Step lens headlights in terms of the uniformity of the Illuminance must be maintained, these changes in distance through an appropriately chosen forced coupling.
- the ellipsoid reflector consists of a metallic or transparent material. To be favoured Glass and polymeric materials used. To make a reflective Surface becomes one of the two surfaces of the reflector with a System of thin layers. This advantageously makes them visible Radiation components are reflected and the invisible components, in particular the heat radiation, let through.
- a preferred embodiment of the invention is an optical system for Step lens headlight, the light reflecting surface of the reflector is structured to diffuse light and none, one or two surfaces of the Step lens are structured to scatter light.
- An alternative preferred embodiment of the invention is an optical one System for stepped lens headlights, with at least one of the surfaces the step lens is structured to scatter light and the light reflecting surface of the reflector is not structured to scatter light.
- the optical system in headlights intended for film, stage, studio and photography.
- Fig. 1 shows the optical system according to the invention for stepped lens headlights in the spot position.
- the optical system contains an ellipsoidal reflector (1), a lamp (2) and a step lens (3).
- the light beam (4) emerging from the headlight is indicated schematically.
- the distances (a) between the stepped lens (3) and reflector (1) and (b) between the lamp (2) and reflector (1) are shown.
- the spot position is set in such a way that the lamp filament (2) is in the focal point (F1) of the ellipsoid (1) on the reflector side.
- the light reflected by the reflector (1) is almost completely combined in the focal point (F2) of the ellipsoid (1) remote from the reflector.
- the focal point of the stepped lens (F3) coincides with the focal point of the ellipsoid (F2).
- the lamp filament (2) located in the focal point (F1) on the reflector side is actually imaged in the focal point (F2) of the ellipsoid (1) remote from the reflector.
- Fig. 2 shows the optical system according to the invention for step lens headlights in the flood position.
- the structure corresponds to the structure of an optical system explained in FIG. 1.
- the opening angle of the light bundle (4) emerging from the step lens (3) can be increased almost arbitrarily by the distance (b) between the lamp (2) and the reflector (1) and the distance (a) between the step lens (3 ) and the reflector (1) can be changed.
- the changes in distance are carried out by means of an appropriately selected forced coupling (not shown in FIGS. 1 and 2).
- the lamp (2) lies outside the focal point (F1) on the reflector side.
- the focal point of the stepped lens (F3) does not coincide with the focal point of the ellipsoid (F2) remote from the reflector.
Abstract
In der vorliegenden Erfindung wird ein optisches System für Stufenlinsenscheinwerfer beschrieben mit einem ellipsoiden Reflektor (1), einer Lampe (2) und mindestens einer Stufenlinse (3), wobei der Abstand (a) zwischen Stufenlinse (3) und Reflektor (1) zu dem Abstand (b) zwischen Lampe (2) und Reflektor (1) nach Maßgabe des einzustellenden Öffnungswinkels des aus dem Scheinwerfer austretenden Lichtbündels (4) in einer definierten Abhängigkeit steht. Der Abstand (b) wird dadurch eingestellt, dass die Lampe (2) zum Scheitelpunkt des Reflektors (1) hin oder vom Scheitelpunkt des Reflektors (1) weg bewegt wird. Bei dem optischen System besteht der Reflektor (1) aus einem metallischen oder transparenten Material. Mindestens eine der beiden Oberflächen des Reflektors (1) ist mit einem System dünner Schichten versehen. Das optische System wird in Scheinwerfern für Film, Bühne, Studio und Fotografie verwendet. <IMAGE>In the present invention, an optical system for stepped lens headlights is described with an ellipsoidal reflector (1), a lamp (2) and at least one stepped lens (3), the distance (a) between the stepped lens (3) and the reflector (1) to that Distance (b) between lamp (2) and reflector (1) is in a defined dependency in accordance with the opening angle to be set for the light beam (4) emerging from the headlight. The distance (b) is set by moving the lamp (2) towards the vertex of the reflector (1) or away from the vertex of the reflector (1). In the optical system, the reflector (1) consists of a metallic or transparent material. At least one of the two surfaces of the reflector (1) is provided with a system of thin layers. The optical system is used in spotlights for film, stage, studio and photography. <IMAGE>
Description
Die Erfindung betrifft ein optisches System für Stufenlinsenscheinwerfer mit einem ellipsoiden Reflektor, einer Lampe und mindestens einer Stufenlinse.The invention relates to an optical system for stepped lens headlights with a ellipsoidal reflector, a lamp and at least one step lens.
Die lichttechnisch relevanten Teile bei gewöhnlichen optischen Systemen für Stufenlinsenscheinwerfer sind Lampe, Stufenlinse (Fresnellinse) und sphärischer Hilfsreflektor. Dabei befindet sich die Lampenwendel im Wesentlichen unveränderlich im Kugelmittelpunkt des sphärischen Hilfsreflektors. Dadurch wird ein Teil des von der Lampe abgestrahlten Lichts in diese zurückreflektiert und die Lichtabstrahlung in den vorderen Halbraum unterstützt. Dieses nach vorn gerichtete Licht wird durch die Stufenlinse gebündelt. Der Grad der Lichtbündelung ist von dem Abstand zwischen der Stufenlinse und der Lampe abhängig. Befindet sich die Lampenwendel im Brennpunkt der Stufenlinse, so ergibt sich die engste Lichtbündelung. Dadurch wird ein quasiparalleler Strahlengang, auch Spot genannt, erhalten. Durch Verkürzung des Abstandes zwischen der Stufenlinse und der Lampe wird der Öffnungswinkel des austretenden Lichtbündels stetig vergrößert. Dadurch wird ein divergierender Strahlengang, auch Flood genannt, erhalten.The parts relevant to lighting technology in conventional optical systems for Step lens headlights are lamp, step lens (Fresnel lens) and spherical Auxiliary reflector. The lamp filament is located essentially unchangeable in the center of the sphere of the spherical auxiliary reflector. Thereby part of the light emitted by the lamp is reflected back into it and supports the light emission in the front half space. This after light directed at the front is focused by the step lens. The degree of light beam depends on the distance between the step lens and the lamp. If the lamp filament is at the focal point of the stepped lens, it results the closest beam of light. This creates a quasi-parallel beam path, also called spot. By shortening the distance between the stepped lens and the lamp becomes the opening angle of the emerging Light beam steadily enlarged. This creates a divergent beam path, also called flood.
Nachteilig an solchen Scheinwerfern ist die schlechte Lichtausbeute insbesondere in der Spot-Stellung, da hier nur ein verhältnismäßig kleiner Raumwinkelbereich der Lampe durch die Stufenlinse erfasst wird. Außerdem wirkt sich nachteilig aus, dass das von dem sphärischen Reflektor reflektierte Licht zu einem großen Teil die Lampenwendel selbst trifft, dort absorbiert wird und die Lampenwendel zusätzlich aufheizt.A disadvantage of such headlights is the poor light yield in particular in the spot position, since there is only a relatively small solid angle range the lamp is captured by the step lens. It also has an effect disadvantageous from the fact that the light reflected by the spherical reflector a large part hits the lamp filament itself, is absorbed there and the Lamp filament additionally heated.
Aufgabe der Erfindung ist es, ein optisches System für Stufenlinsenscheinwerfer mit einem verbesserten Lichtwirkungsgrad insbesondere in Spot-, aber auch in Floodstellung bei Erhaltung der Gleichmäßigkeit der Beleuchtungsstärke im Lichtfeld bereitzustellen.The object of the invention is to provide an optical system for stepped lens headlights with an improved light efficiency especially in spot, but also in the flood position while maintaining the uniformity of the illuminance to be provided in the light field.
Die Lösung der Aufgabe erfolgt durch ein optisches System für Stufenlinsenscheinwerfer mit einem ellipsoiden Reflektor, einer Lampe und mindestens einer Stufenlinse, wobei der Abstand zwischen Stufenlinse und Reflektor zu dem Abstand zwischen Lampe und Reflektor nach Maßgabe des einzustellenden Öffnungswinkels des aus dem Scheinwerfer austretenden Lichtbündels in einer definierten Abhängigkeit steht.The task is solved by an optical system for stepped lens headlights with an ellipsoidal reflector, a lamp and at least one Step lens, the distance between the step lens and reflector to the Distance between lamp and reflector according to the one to be set Opening angle of the light beam emerging from the headlight in one defined dependency.
Mit dem erfindungsgemäßen optischen System wird ein deutlich verbesserter Lichtwirkungsgrad insbesondere in Spot-, aber auch in Floodstellung erreicht. Gleichzeitig wird die Gleichmäßigkeit der Beleuchtungsstärke im Lichtfeld erhalten.With the optical system according to the invention, a significantly improved Light efficiency achieved especially in the spot, but also in the flood position. At the same time, the uniformity of the illuminance in the light field is maintained.
Erfindungsgemäß ist ein ellipsoider Reflektor mit großer Apertur vorgesehen. Die Spot-Stellung wird dadurch eingestellt, dass sich die Lampenwendel im reflektorseitigen Brennpunkt des Ellipsoids befindet. Das von dem Reflektor reflektierte Licht wird nahezu vollständig im reflektorfernen Brennpunkt des Ellipsoids vereinigt. Die sich im reflektorseitigen Brennpunkt befindliche Lampenwendel wird reell im reflektorfernen Brennpunkt des Ellipsoids abgebildet. Das reflektierte Licht trifft im Wesentlichen nicht die Lampenwendel. Der Brennpunkt der Stufenlinse fällt mit dem Brennpunkt des Ellipsoids zusammen. Bei zweckmäßiger Wahl des Aperturwinkels von Reflektor und Stufenlinse wird das von dem Reflektor reflektierte Licht nahezu vollständig von der Stufenlinse erfasst und als enges Spot-Lichtbündel nach vorne abgestrahlt. Die Lichtausbeute ist damit erheblich größer als bei einem herkömmlichen Stufenlinsenscheinwerfer.According to the invention, an ellipsoidal reflector with a large aperture is provided. The spot position is set by the lamp filament being in the reflector side Focus of the ellipsoid is located. That reflected by the reflector Light is almost completely at the focal point of the ellipsoid, which is remote from the reflector united. The lamp filament located in the focal point on the reflector side is shown in the focal point of the ellipsoid far from the reflector. The reflected light essentially does not hit the lamp filament. The The focal point of the stepped lens coincides with the focal point of the ellipsoid. With an appropriate choice of the aperture angle of the reflector and the stepped lens the light reflected by the reflector is almost entirely from the step lens captured and emitted to the front as a narrow spot light beam. The light output is therefore considerably larger than with a conventional stepped lens headlight.
Der Öffnungswinkel des aus der Stufenlinse austretenden Lichtbündels kann nahezu beliebig vergrößert werden, indem die Lampenposition in Bezug zum Reflektor einerseits und der Abstand der Stufenlinse zum Reflektor andererseits in geeigneter Weise verändert wird. Damit die guten Eigenschaften herkömmlicher Stufenlinsenscheinwerfer in Bezug auf die Gleichmäßigkeit der Beleuchtungsstärke erhalten bleiben, müssen diese Abstandsveränderungen durch eine zweckmäßig gewählte Zwangskoppelung erfolgen.The opening angle of the light beam emerging from the step lens can can be enlarged almost arbitrarily by the lamp position in relation to the Reflector on the one hand and the distance of the stepped lens to the reflector on the other is changed in a suitable manner. So that the good properties more conventional Step lens headlights in terms of the uniformity of the Illuminance must be maintained, these changes in distance through an appropriately chosen forced coupling.
Eine Ausführungsform der Erfindung besteht darin, dass der Ellipsoidreflektor aus einem metallischen oder transparenten Material besteht. Bevorzugt werden Glas und polymere Materialien verwendet. Zur Herstellung einer reflektierenden Oberfläche wird eine der beiden Oberflächen des Reflektors mit einem System dünner Schichten versehen. Dadurch werden vorteilhafterweise sichtbare Strahlungsanteile reflektiert und die unsichtbaren Anteile, insbesondere die Wärmestrahlung, durchgelassen. One embodiment of the invention is that the ellipsoid reflector consists of a metallic or transparent material. To be favoured Glass and polymeric materials used. To make a reflective Surface becomes one of the two surfaces of the reflector with a System of thin layers. This advantageously makes them visible Radiation components are reflected and the invisible components, in particular the heat radiation, let through.
Eine bevorzugte Ausführungsform der Erfindung ist ein optisches System für Stufenlinsenscheinwerfer, wobei die lichtreflektierende Oberfläche des Reflektors lichtstreuend strukturiert ist und keine, eine oder zwei Oberflächen der Stufenlinse lichtstreuend strukturiert sind. Durch die Aufbringung der Struktur wird die Gleichmäßigkeit der Beleuchtungsstärke im Lichtfeld verbessert. Durch die Aufbringung der Struktur wird die Gleichmäßigkeit der Beleuchtungsstärke im Lichtfeld verbessert.A preferred embodiment of the invention is an optical system for Step lens headlight, the light reflecting surface of the reflector is structured to diffuse light and none, one or two surfaces of the Step lens are structured to scatter light. By applying the structure the uniformity of the illuminance in the light field is improved. By applying the structure, the uniformity of the illuminance improved in the light field.
Eine alternative bevorzugte Ausführungsform der Erfindung ist ein optisches System für Stufenlinsenscheinwerfer, wobei mindestens eine der Oberflächen der Stufenlinse lichtstreuend strukturiert ist und die lichtreflektierende Oberfläche des Reflektors nicht lichtstreuend strukturiert ist. Durch die Aufbringung der Struktur wird die Gleichmäßigkeit der Beleuchtungsstärke im Lichtfeld verbessert.An alternative preferred embodiment of the invention is an optical one System for stepped lens headlights, with at least one of the surfaces the step lens is structured to scatter light and the light reflecting surface of the reflector is not structured to scatter light. By applying The structure improves the uniformity of the illuminance in the light field.
Erfindungsgemäß ist die Verwendung des optischen Systems in Scheinwerfern für Film, Bühne, Studio und Fotografie vorgesehen.According to the invention, the use of the optical system in headlights intended for film, stage, studio and photography.
Die Erfindung wird anhand einer beispielhaften Zeichnung näher erläutert. Die Zeichnung besteht aus Fig. 1 und Fig. 2.The invention is explained in more detail using an exemplary drawing. The Drawing consists of FIGS. 1 and 2.
Fig. 1 zeigt das erfindungsgemäße optische System für Stufenlinsenscheinwerfer
in Spot-Stellung. Das optische System enthält einen ellipsoiden Reflektor
(1), eine Lampe (2) und eine Stufenlinse (3). Das aus dem Scheinwerfer
austretende Lichtbündel (4) ist schematisch angedeutet. Die Abstände (a)
zwischen Stufenlinse (3) und Reflektor (1) und (b) zwischen Lampe (2) und
Reflektor (1) sind dargestellt. Die Spot-Stellung wird dadurch eingestellt, dass
sich die Lampenwendel (2) im reflektorseitigen Brennpunkt (F1) des Ellipsoids
(1) befindet. Das von dem Reflektor (1) reflektierte Licht wird nahezu vollständig
im reflektorfernen Brennpunkt (F2) des Ellipsoids (1) vereinigt. Der Brennpunkt
der Stufenlinse (F3) fällt mit dem Brennpunkt des Ellipsoids (F2) zusammen.
Die sich im reflektorseitigen Brennpunkt (F1) befindliche Lampenwendel
(2) wird reell im reflektorfernen Brennpunkt (F2) des Ellipsoids (1) abgebildet.
Fig. 2 zeigt das erfindungsgemäße optische System für Stufenlinsenscheinwerfer
in Flood-Stellung. Der Aufbau entspricht dem in Fig. 1 erläuterten Aufbau
eines optischen Systems. Der Öffnungswinkel des aus der Stufenlinse (3)
austretenden Lichtbündels (4) kann nahezu beliebig vergrößert werden, in dem
der Abstand (b) zwischen der Lampe (2) und dem Reflektor (1) und der Abstand
(a) zwischen der Stufenlinse (3) und dem Reflektor (1) verändert werden.
Damit die Gleichmäßigkeit der Beleuchtungsstärke erhalten bleibt, erfolgen
die Abstandsveränderungen durch eine zweckmäßig gewählte Zwangskoppelung
(in Fig. 1 und Fig. 2 nicht dargestellt). Die Lampe (2) liegt außerhalb
des reflektorseitigen Brennpunktes (F1). Der Brennpunkt der Stufenlinse (F3)
fällt mit dem reflektorfernen Brennpunkt des Ellipsoids (F2) nicht zusammen.Fig. 1 shows the optical system according to the invention for stepped lens headlights in the spot position. The optical system contains an ellipsoidal reflector (1), a lamp (2) and a step lens (3). The light beam (4) emerging from the headlight is indicated schematically. The distances (a) between the stepped lens (3) and reflector (1) and (b) between the lamp (2) and reflector (1) are shown. The spot position is set in such a way that the lamp filament (2) is in the focal point (F1) of the ellipsoid (1) on the reflector side. The light reflected by the reflector (1) is almost completely combined in the focal point (F2) of the ellipsoid (1) remote from the reflector. The focal point of the stepped lens (F3) coincides with the focal point of the ellipsoid (F2). The lamp filament (2) located in the focal point (F1) on the reflector side is actually imaged in the focal point (F2) of the ellipsoid (1) remote from the reflector.
Fig. 2 shows the optical system according to the invention for step lens headlights in the flood position. The structure corresponds to the structure of an optical system explained in FIG. 1. The opening angle of the light bundle (4) emerging from the step lens (3) can be increased almost arbitrarily by the distance (b) between the lamp (2) and the reflector (1) and the distance (a) between the step lens (3 ) and the reflector (1) can be changed. In order to maintain the uniformity of the illuminance, the changes in distance are carried out by means of an appropriately selected forced coupling (not shown in FIGS. 1 and 2). The lamp (2) lies outside the focal point (F1) on the reflector side. The focal point of the stepped lens (F3) does not coincide with the focal point of the ellipsoid (F2) remote from the reflector.
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10113385A DE10113385C1 (en) | 2001-03-16 | 2001-03-16 | Fresnels |
| DE10113385 | 2001-03-16 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1241399A2 true EP1241399A2 (en) | 2002-09-18 |
| EP1241399A3 EP1241399A3 (en) | 2005-04-13 |
| EP1241399B1 EP1241399B1 (en) | 2008-05-28 |
Family
ID=7678153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02003626A Expired - Lifetime EP1241399B1 (en) | 2001-03-16 | 2002-02-16 | Optical system for stepped lens projector |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6899451B2 (en) |
| EP (1) | EP1241399B1 (en) |
| JP (2) | JP2002324410A (en) |
| DE (2) | DE10113385C1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1548358A1 (en) * | 2003-12-22 | 2005-06-29 | Schott AG | Headlmap with stepped lens and variable distance between light source and reflector |
| EP1548355A2 (en) * | 2003-12-22 | 2005-06-29 | Schott AG | Stepped lens headlamp |
| DE10361121A1 (en) * | 2003-12-22 | 2005-07-21 | Schott Ag | Optical arrangement with stepped lens |
| WO2006136378A1 (en) * | 2005-06-20 | 2006-12-28 | Cooper Crouse-Hinds Gmbh | Portable light |
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| DE10202870A1 (en) * | 2002-01-11 | 2003-09-04 | Zeiss Carl Jena Gmbh | Illumination device for microscopes |
| US6854865B2 (en) * | 2003-02-12 | 2005-02-15 | W. T. Storey, Inc. | Reflector for light emitting objects |
| DE10318330B3 (en) * | 2003-04-19 | 2005-01-20 | Hensel Studiotechnik Gmbh & Co. Kg | Light distribution attachment for stepped lens spotlamp for photographic purposes has non-transparent body with mirrored inner surface, front diffuser and light distributor in front of light input opening |
| DE102004013962A1 (en) * | 2003-12-22 | 2005-07-21 | Schott Ag | Fresnel lens spotlight for pocket lamp, has diffusing screen placed in center of fresnel lens to produce scattered light ratio and aperture angle of light to provide mixing ratio of light relative to another light imaged by lens |
| DE10361116B4 (en) * | 2003-12-22 | 2010-06-17 | Auer Lighting Gmbh | Fresnels |
| DE102004014045A1 (en) * | 2003-12-22 | 2005-07-28 | Schott Ag | Fresnel lens headlamp with coupled change in the distance of lighting elements |
| ATE508324T1 (en) * | 2003-12-22 | 2011-05-15 | Auer Lighting Gmbh | FREQUENCY LENS HEADLIGHTS |
| US7534012B2 (en) * | 2004-02-04 | 2009-05-19 | Nitto Denko Corporation | Illumination device, light irradiation apparatus using the same, and method for producing photoreaction product sheet with the apparatus |
| JP4149978B2 (en) * | 2004-09-16 | 2008-09-17 | 株式会社東芝 | Fresnel lens and lighting device |
| DE102005029669A1 (en) | 2005-06-22 | 2007-01-11 | Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg | headlights |
| DE102005044237B4 (en) * | 2005-09-16 | 2012-05-03 | Auer Lighting Gmbh | Modular headlight |
| US20100061107A1 (en) * | 2006-03-03 | 2010-03-11 | Pavel Jurik | Optical System |
| US20080247024A1 (en) * | 2006-03-03 | 2008-10-09 | Robe Show Lighting S.R.O. | Optical system for a wash light |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1548358A1 (en) * | 2003-12-22 | 2005-06-29 | Schott AG | Headlmap with stepped lens and variable distance between light source and reflector |
| EP1548355A2 (en) * | 2003-12-22 | 2005-06-29 | Schott AG | Stepped lens headlamp |
| DE10361121A1 (en) * | 2003-12-22 | 2005-07-21 | Schott Ag | Optical arrangement with stepped lens |
| EP1548355B1 (en) * | 2003-12-22 | 2010-05-19 | Auer Lighting GmbH | Stepped lens headlamp |
| WO2006136378A1 (en) * | 2005-06-20 | 2006-12-28 | Cooper Crouse-Hinds Gmbh | Portable light |
| US8162503B2 (en) | 2005-06-20 | 2012-04-24 | Cooper Crouse-Hinds Gmbh | Portable lighting device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1241399B1 (en) | 2008-05-28 |
| JP2008288215A (en) | 2008-11-27 |
| JP4792486B2 (en) | 2011-10-12 |
| US20030063466A1 (en) | 2003-04-03 |
| DE50212306D1 (en) | 2008-07-10 |
| DE10113385C1 (en) | 2002-08-29 |
| EP1241399A3 (en) | 2005-04-13 |
| US6899451B2 (en) | 2005-05-31 |
| JP2002324410A (en) | 2002-11-08 |
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