EP3628950A1 - Cooling and / or freezer - Google Patents
Cooling and / or freezer Download PDFInfo
- Publication number
- EP3628950A1 EP3628950A1 EP19200103.0A EP19200103A EP3628950A1 EP 3628950 A1 EP3628950 A1 EP 3628950A1 EP 19200103 A EP19200103 A EP 19200103A EP 3628950 A1 EP3628950 A1 EP 3628950A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerator
- projection arrangement
- freezer
- diffractive optical
- optical 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title description 4
- 230000003287 optical effect Effects 0.000 claims abstract description 27
- 238000003384 imaging method Methods 0.000 claims abstract description 3
- 239000011521 glass Substances 0.000 claims description 32
- 241000208125 Nicotiana Species 0.000 claims 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims 1
- 238000007493 shaping process Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D27/00—Lighting arrangements
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0404—Cases or cabinets of the closed type
- A47F3/0426—Details
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0404—Cases or cabinets of the closed type
- A47F3/0426—Details
- A47F3/0434—Glass or transparent panels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2327/00—Lighting arrangements not provided for in other groups of this subclass
- F25D2327/001—Lighting arrangements on the external side of the refrigerator, freezer or cooling box
Definitions
- the invention relates to a refrigerator and / or freezer with a projection arrangement for displaying information or symbols on a visible surface.
- the object of the invention is to provide a more innovative and flexible way to realize both generic information displays and generic symbols on refrigerators and / or freezers.
- the invention relates to a refrigerator and / or freezer with a heat-insulated device body, which is cooled by means of a heat pump Encloses interior, wherein a removal opening is provided through which the interior is accessible from the outside of the device, wherein a door or a lid is provided to close the removal opening, wherein the device is a projection arrangement for imaging information or symbols on a visible Surface, and wherein the projection arrangement comprises a light source and a diffractive optical element for diffraction of a light beam emitted by the light source.
- the projection can therefore be information, for example information about the interior temperature, time, device status or the like, or a symbol, for example a manufacturer's lettering or a logo.
- the information or symbolism can take place as positive, that is to say by light projection of the information or symbolism itself, or as negative, that is to say by light projection onto the surroundings, with the information or symbolism being left out.
- a diffractive optical element is an optical element for shaping a light beam, for example a laser beam.
- Diffractive optical elements generally comprise a transparent support with a microstructure, which generate an interference pattern on an incident light beam and thus bring about beam shaping.
- Diffractive optical elements have some advantages over alternative beam shaping optics or elements, such as masks. In this way, not provided beam parts are not simply masked out, as would be the case with a mask, but the intensity of the beam is redistributed by the diffractive optical element. This means that the radiation energy can be used almost completely.
- the beam can also be focused on diameters in which diffraction phenomena would already occur with a mask and reduce the beam quality. Overall, the projection arrangement can be kept very simple, since the diffractive optical element can take over the tasks of several conventional optical components.
- the design of the projection arrangement can be kept very flat, which among other things can have a positive effect on the available usable space and the insulation.
- the projection arrangement preferably depicts the information or symbols on a visible surface of the device, and therefore not on a surface that is not part of the device, such as the floor or a wall at the installation site.
- the information or symbolism should therefore be projected onto a visible surface of the device, for example onto a visible outer surface of the body or door or flap, onto a visible inner surface of the body or door or flap or onto a visible surface of an Interior arranged component, such as a shelf.
- the relevant, visible surface of the device can be a glass surface.
- the visible surface can be the glass cover of a display panel, the glass surface of a glass door or a glass surface of a component arranged in the interior, such as a glass storage shelf.
- a glass is understood to mean both a mineral glass and a plastic glass.
- the refrigerator and / or freezer has a glass door or flap.
- a glass door or flap is understood to mean a door or flap which has a large-area and transparent glass pane which extends over a substantial part of the door surface or flap surface. Through the glass surface, the interior of the device and in particular goods stored in this interior are visible to a user from the outside when the door or flap is closed.
- the glass pane is preferably enclosed on all sides in a frame.
- a heat-insulating multiple glazing is preferably provided.
- the projection arrangement displays the information or symbols on the glass surface of the glass door or glass flap.
- the refrigerator and / or freezer is a wine cooler.
- Wine cooling devices are pure cooling devices, the interior temperature of which can typically be set in a range which is in any case between 5 ° C. and 25 ° C. They typically include several shelves specially designed for storing wine bottles and often a glass door.
- information or symbols can be thrown in a visually appealing manner at a specific point on the wine cooling device, for example at the glass surface of the door. In the case of a wine cooler, this can be particularly advantageous since the visual appearance of such devices often has special significance for the customer.
- the light source may include a light emitting diode.
- Light emitting diodes are particularly suitable for use in refrigerators and / or freezers because of their low power consumption and low heat emission. They take up little space and there are countless LEDs available that emit light of different colors.
- the light source is a laser.
- Preferred examples include diode lasers.
- the device comprises a lamp for illuminating the cooled interior, which comprises a transparent cover and a lamp arranged behind the cover.
- the projection arrangement can be integrated in this luminaire in that the light source of the projection arrangement is also arranged behind the cover and the cover represents the diffractive optical element.
- the microstructure of the diffractive optical element is located on the cover. In this way, added value can be achieved with an existing lighting component and information or symbols can be projected onto any surface of the device without the use of additional, separate components or cabling.
- the structures of the diffractive optical elements are so small that they are difficult or impossible to see with the naked eye, so that the appearance of the cover is not impaired.
- the diffractive optical element can be a transparent surface component. Suitable surface components include both flat plates and curved surface components such as shells.
- the microstructure of the diffractive optical element can be incorporated into the surface component itself, or can also be incorporated into a film that coats the surface component.
- the diffractive optical elements can be produced, for example, by injection molding or by UV roll imprint (R2R / R2P).
- the projection arrangement has two or more light sources and / or that the diffractive optical element has two or more zones with a diffractive microstructure.
- a plurality of zones of the diffractive optical element, each of which has its own diffractive microstructure can illuminate variably with the same or different light sources in order to obtain different projections, for example to display different information depending on the operating state of the device.
- the projection arrangement 10 comprises, as central components, a light source 20 which emits a light beam 50, and a diffractive optical element 30 in the form of a glass plate which has a zone 31 with a diffractive microstructure, on which the light beam 50 is shaped such that it
- the information is imaged on a surface 40 of the device which is visible to the user, in the present case on the rear side of a glass plate which can also be seen from the front.
- the characteristic feature of the optically effective zone 31 of the diffractive optical element 30 comprises a microstructure which generates an interference pattern on the incident light beam 50 and thus effects beam shaping.
- FIGS. 2a-c show further examples of projection arrangements 10 designed according to the invention, each comprising a light source 20 for emitting a light beam 50, and a diffractive optical element 30 in the form of a transparent plate which has a zone 31 with a diffractive microstructure.
- These arrangements 10 are suitable, different symbols or patterns 41, in the case of Figure 2a a strip, in the case of Figure 2b a star and in the case of Figure 2c different geometric shapes, on a horizontal one, for the user project visible surface 40 such as a shelf or intermediate floor in the interior of the device.
- FIG Figure 3 A somewhat more detailed illustration of a concrete structural configuration of a projection arrangement designed according to the invention is shown in FIG Figure 3 shown.
- the projection arrangement is structurally integrated in a conventional light for illuminating the cooled interior of the device, which comprises a light guide plate 120 and an LED light 110, which introduces light into the light guide plate 120 from the side.
- LED light 110 and light guide plate 120 are enclosed in a recess 161 in the device inner container 160, which is covered by a diffuser in the form of a glass plate 130 with a roughened surface.
- the light emitted by the lamp is symbolized by the rays 150.
- the projection arrangement designed according to the invention is integrated in this luminaire in such a way that a light source 20 of the projection arrangement sits on the back of the recess 161 behind the light guide plate 120 and throws a light beam 50 through the transparent light guide plate 120 onto the diffuser glass plate 130.
- a zone 131 with a diffractive microstructure is incorporated in the diffuser glass plate 130, so that the glass plate 132 serves not only as a diffuser but also as a diffractive optical element.
- the light beam 50 is deformed in such a way that it displays a logo 50 on a surface that is not shown in detail.
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Refrigerator Housings (AREA)
Abstract
Die Erfindung betrifft ein Kühl- und/oder Gefriergerät mit einem wärmeisolierten Gerätekorpus, der einen anhand einer Wärmepumpe gekühlten Innenraum umschließt, wobei eine Entnahmeöffnung vorgesehen ist, durch welche der Innenraum von der Außenseite des Geräts zugänglich ist, wobei eine Tür oder ein Deckel vorgesehen ist, um die Entnahmeöffnung zu schließen, wobei das Gerät eine Projektionsanordnung zur Abbildung einer Information oder Symbolik auf einer sichtbaren Oberfläche aufweist, und wobei die Projektionsanordnung eine Lichtquelle und ein diffraktives optisches Element zur Beugung eines von der Lichtquelle emittierten Lichtstrahls umfasst.The invention relates to a refrigerator and / or freezer with a heat-insulated body, which encloses an interior cooled by a heat pump, a removal opening being provided through which the interior is accessible from the outside of the appliance, a door or a lid being provided to close the removal opening, the device having a projection arrangement for imaging information or symbols on a visible surface, and wherein the projection arrangement comprises a light source and a diffractive optical element for diffraction of a light beam emitted by the light source.
Description
Die Erfindung betrifft ein Kühl- und/oder Gefriergerät mit einer Projektionsanordnung zur Abbildung einer Information oder Symbolik auf einer sichtbaren Oberfläche.The invention relates to a refrigerator and / or freezer with a projection arrangement for displaying information or symbols on a visible surface.
Im Stand der Technik ist es bekannt, gerätespezifische Information von Kühl- und/oder Gefriergeräten wie beispielsweise Angaben zu Innenraumtemperatur, Uhrzeit, Gerätestatus oder dergleichen durch Segmentanzeigen, LED-Anzeigen, LCD-Displays oder dergleichen zu visualisieren. Ferner ist es bekannt, Symboliken wie beispielsweise Herstellerschriftzüge, Logos oder Modellbezeichnungen entweder physisch am Gerät anzubringen oder durch beispielsweise hinterleuchtete Blenden umzusetzen.In the prior art, it is known to visualize device-specific information from refrigerators and / or freezers, such as information on interior temperature, time, device status or the like, by means of segment displays, LED displays, LCD displays or the like. Furthermore, it is known to either physically attach symbols such as manufacturer's lettering, logos or model names to the device or to implement them by means of, for example, backlit panels.
Aufgabe der Erfindung ist es, eine innovativere und flexiblere Möglichkeit bereitzustellen, um sowohl gattungsgemäße Informationsanzeigen als auch gattungsgemäße Symboliken an Kühl- und/oder Gefriergeräten realisieren zu können.The object of the invention is to provide a more innovative and flexible way to realize both generic information displays and generic symbols on refrigerators and / or freezers.
Vor diesem Hintergrund betrifft die Erfindung ein Kühl- und/oder Gefriergerät mit einem wärmeisolierten Gerätekorpus, der einen anhand einer Wärmepumpe gekühlten Innenraum umschließt, wobei eine Entnahmeöffnung vorgesehen ist, durch welche der Innenraum von der Außenseite des Geräts zugänglich ist, wobei eine Tür oder ein Deckel vorgesehen ist, um die Entnahmeöffnung zu schließen, wobei das Gerät eine Projektionsanordnung zur Abbildung einer Information oder Symbolik auf einer sichtbaren Oberfläche aufweist, und wobei die Projektionsanordnung eine Lichtquelle und ein diffraktives optisches Element zur Beugung eines von der Lichtquelle emittierten Lichtstrahls umfasst.Against this background, the invention relates to a refrigerator and / or freezer with a heat-insulated device body, which is cooled by means of a heat pump Encloses interior, wherein a removal opening is provided through which the interior is accessible from the outside of the device, wherein a door or a lid is provided to close the removal opening, wherein the device is a projection arrangement for imaging information or symbols on a visible Surface, and wherein the projection arrangement comprises a light source and a diffractive optical element for diffraction of a light beam emitted by the light source.
Bei der Projektion kann es sich also um eine Information, beispielsweise um Angaben zu Innenraumtemperatur, Uhrzeit, Gerätestatus oder dergleichen, oder um eine Symbolik, also beispielsweise einen Herstellerschriftzug oder ein Logo handeln. Die Information oder Symbolik kann als Positiv, also durch Lichtprojektion der Information oder Symbolik selbst, oder als Negativ, also durch Lichtprojektion auf die Umgebung unter Aussparung der Information oder Symbolik erfolgen.The projection can therefore be information, for example information about the interior temperature, time, device status or the like, or a symbol, for example a manufacturer's lettering or a logo. The information or symbolism can take place as positive, that is to say by light projection of the information or symbolism itself, or as negative, that is to say by light projection onto the surroundings, with the information or symbolism being left out.
Bei einem diffraktiven optischen Element (engl. diffractive optical element, kurz: DOE) handelt es sich ein optisches Element zur Formung eines Lichtstrahls, beispielsweise eines Laserstrahls. Diffraktive optische Elemente umfassen generell einen transparenten Träger mit Mikrostruktur, welche an einem einfallenden Lichtstrahl ein Interferenzmuster erzeugen und so eine Strahlformung bewirken. Diffraktive optische Elemente haben einige Vorteile gegenüber alternativen Strahlformungsoptiken bzw. -elementen, wie beispielsweise Masken. So werden nicht vorgesehene Strahlteile nicht einfach ausgeblendet, wie dies bei einer Maske der Fall wäre, sondern die Intensität des Strahls wird durch das diffraktive optische Element umverteilt. Dadurch kann die Strahlenergie fast vollständig ausgenutzt werden. Auch kann der Strahl auf Durchmesser fokussiert werden, bei denen mit einer Maske bereits Beugungserscheinungen auftreten würden, die die Strahlqualität reduzieren. Insgesamt kann die Projektionsanordnung sehr einfach gehalten werden, da das diffraktive optische Element die Aufgaben mehrerer konventioneller optischer Bauelemente übernehmen kann.A diffractive optical element (DOE for short) is an optical element for shaping a light beam, for example a laser beam. Diffractive optical elements generally comprise a transparent support with a microstructure, which generate an interference pattern on an incident light beam and thus bring about beam shaping. Diffractive optical elements have some advantages over alternative beam shaping optics or elements, such as masks. In this way, not provided beam parts are not simply masked out, as would be the case with a mask, but the intensity of the beam is redistributed by the diffractive optical element. This means that the radiation energy can be used almost completely. The beam can also be focused on diameters in which diffraction phenomena would already occur with a mask and reduce the beam quality. Overall, the projection arrangement can be kept very simple, since the diffractive optical element can take over the tasks of several conventional optical components.
Aufgrund der Verwendung der sehr kleinen diffraktiven optischen Elemente, deren Strukturgrößen im Mikro- oder gar Nanometerbereich liegen, kann die Bauform der Projektionsanordnung sehr flach gehalten werden, was sich unter anderem positiv auf den verfügbaren Nutzraum und die Dämmung auswirken kann.Due to the use of the very small diffractive optical elements, the structure sizes of which are in the micro or even nanometer range, the design of the projection arrangement can be kept very flat, which among other things can have a positive effect on the available usable space and the insulation.
Vorzugsweise bildet die Projektionsanordnung die Information oder Symbolik auf einer sichtbaren Oberfläche des Geräts ab, und mithin nicht auf einer nicht zum Gerät gehörigen Oberfläche wie dem Boden oder einer Wandung am Aufstellort. Die Information bzw. Symbolik soll also auf eine sichtbare Oberfläche des Geräts projiziert werden, also beispielsweise auf eine sichtbare Außenoberfläche des Korpus oder der Tür bzw. Klappe, auf eine sichtbare Innenoberfläche des Korpus oder der Tür bzw. Klappe oder auf eine sichtbare Fläche eines im Innenraum angeordneten Bauteils, wie etwa eines Ablagebodens.The projection arrangement preferably depicts the information or symbols on a visible surface of the device, and therefore not on a surface that is not part of the device, such as the floor or a wall at the installation site. The information or symbolism should therefore be projected onto a visible surface of the device, for example onto a visible outer surface of the body or door or flap, onto a visible inner surface of the body or door or flap or onto a visible surface of an Interior arranged component, such as a shelf.
Bei der betreffenden, sichtbaren Oberfläche des Geräts kann es sich um eine Glasfläche handeln. Beispielsweise kann es sich bei der sichtbaren Oberfläche um die gläserne Abdeckung eines Anzeigefeldes, um die Glasfläche einer Glastür oder um eine Glasfläche eines im Innenraum angeordneten Bauteils, wie etwa eines gläsernen Ablagebodens handeln. Unter einem Glas wird im vorliegenden Zusammenhang sowohl ein Mineralglas als auch ein Kunststoffglas verstanden.The relevant, visible surface of the device can be a glass surface. For example, the visible surface can be the glass cover of a display panel, the glass surface of a glass door or a glass surface of a component arranged in the interior, such as a glass storage shelf. In the present context, a glass is understood to mean both a mineral glass and a plastic glass.
Es kann vorgesehen sein, dass das Kühl- und/oder Gefriergerät eine Glastür bzw. Glasklappe aufweist. Unter einer Glastür bzw. Glasklappe wird eine Tür bzw. Klappe verstanden, welche eine großflächige und durchsichtige Glasscheibe aufweist, welche sich über einen wesentlichen Teil der Türfläche bzw. Klappenfläche erstreckt. Durch die Glasfläche sind der Innenraum des Geräts und insbesondere in diesem Innenraum gelagerte Waren für einen Benutzer bei geschlossener Tür bzw. Klappe von außen her sichtbar. Die Glasscheibe ist vorzugsweise allseitig in einen Rahmen eingefasst. Vorzugsweise ist eine wärmeisolierende Mehrfachverglasung vorgesehen.It can be provided that the refrigerator and / or freezer has a glass door or flap. A glass door or flap is understood to mean a door or flap which has a large-area and transparent glass pane which extends over a substantial part of the door surface or flap surface. Through the glass surface, the interior of the device and in particular goods stored in this interior are visible to a user from the outside when the door or flap is closed. The glass pane is preferably enclosed on all sides in a frame. A heat-insulating multiple glazing is preferably provided.
In diesem Zusammenhang kann vorgesehen sein, dass die Projektionsanordnung die Information oder Symbolik auf der Glasfläche der Glastür bzw. Glasklappe abbildet.In this context, it can be provided that the projection arrangement displays the information or symbols on the glass surface of the glass door or glass flap.
In einer Ausführungsform handelt es sich bei dem Kühl- und/oder Gefriergerät um ein Weinkühlgerät. Weinkühlgeräte sind reine Kühlgeräte, deren Innenraumtemperatur typischerweise in einem Bereich eingestellt werden kann, der jedenfalls zwischen 5°C und 25°C liegt. Sie umfassen typischerweise mehrere eigens für die Lagerung von Weinflaschen ausgebildete Ablagen und vielfach eine Glastür. Anhand der erfindungsgemäß ausgebildeten Projektionsanordnung kann eine Information oder Symbolik in optisch ansprechender Weise an eine bestimmte Stelle des Weinkühlgeräts, beispielsweise an die Glasfläche der Tür geworfen werden. Bei einem Weinkühlgerät kann dies besonders vorteilhaft sein, da bei derartigen Geräten das optische Erscheinungsbild oft eine besondere Bedeutung für den Kunden entfaltet.In one embodiment, the refrigerator and / or freezer is a wine cooler. Wine cooling devices are pure cooling devices, the interior temperature of which can typically be set in a range which is in any case between 5 ° C. and 25 ° C. They typically include several shelves specially designed for storing wine bottles and often a glass door. Using the projection arrangement designed according to the invention, information or symbols can be thrown in a visually appealing manner at a specific point on the wine cooling device, for example at the glass surface of the door. In the case of a wine cooler, this can be particularly advantageous since the visual appearance of such devices often has special significance for the customer.
Die Lichtquelle kann eine lichtemittierende Diode umfassen. Leuchtdioden (LEDs) sind für einen Einsatz in Kühl- und/oder Gefriergeräten wegen des geringen Stromverbrauchs und der geringen Wärmeemission besonders geeignet. Sie haben einen geringen Platzbedarf und es sind unzählige LEDs verfügbar, die Licht unterschiedlichster Farben emittieren.The light source may include a light emitting diode. Light emitting diodes (LEDs) are particularly suitable for use in refrigerators and / or freezers because of their low power consumption and low heat emission. They take up little space and there are countless LEDs available that emit light of different colors.
Alternativ kann vorgesehen sein, dass es sich bei der Lichtquelle um einen Laser handelt. Bevorzugte Beispiele umfassen Diodenlaser.Alternatively, it can be provided that the light source is a laser. Preferred examples include diode lasers.
Es kann vorgesehen sein, dass das Gerät eine Leuchte zur Beleuchtung des gekühlten Innenraums umfasst, welche eine transparente Abdeckung und ein hinter der Abdeckung angeordnetes Leuchtmittel umfasst. Die Projektionsanordnung kann in dieser Leuchte integriert sein, indem die Lichtquelle der Projektionsanordnung ebenfalls hinter der Abdeckung angeordnet ist und die Abdeckung das diffraktive optische Element darstellt. Die Mikrostruktur des diffraktiven optischen Elements befindet sich also an der Abdeckung. So kann ein Mehrwert an einem ohnehin vorhandenen Beleuchtungs-Bauteil erreicht werden und Informationen oder Symboliken können ohne Verwendung zusätzlicher, separater Bauteile oder Verkabelungen auf beliebige Flächen des Geräts projiziert werden. Die Strukturen der diffraktiven optischen Elemente sind so klein, dass diese mit freiem Auge nicht oder kaum zu erkennen sind, sodass das Erscheinungsbild der Abdeckung nicht beeinträchtigt wird.It can be provided that the device comprises a lamp for illuminating the cooled interior, which comprises a transparent cover and a lamp arranged behind the cover. The projection arrangement can be integrated in this luminaire in that the light source of the projection arrangement is also arranged behind the cover and the cover represents the diffractive optical element. The microstructure of the diffractive optical element is located on the cover. In this way, added value can be achieved with an existing lighting component and information or symbols can be projected onto any surface of the device without the use of additional, separate components or cabling. The structures of the diffractive optical elements are so small that they are difficult or impossible to see with the naked eye, so that the appearance of the cover is not impaired.
Bei dem diffraktiven optischen Element kann es sich um ein transparentes Flächenbauteil handeln. Geeignete Flächenbauteile umfassen sowohl ebene Platten als auch gekrümmte Flächenbauteile wie beispielsweise Schalen. Die Mikrostruktur des diffraktiven optischen Elements kann in das Flächenbauteil selbst eingearbeitet sein, oder auch in eine Folie eingearbeitet sein, die das Flächenbauteil beschichtet. Die diffraktiven optischen Elemente können beispielsweise im Spritzgussverfahren oder durch UV-Roll-Imprint (R2R/R2P) hergestellt sein.The diffractive optical element can be a transparent surface component. Suitable surface components include both flat plates and curved surface components such as shells. The microstructure of the diffractive optical element can be incorporated into the surface component itself, or can also be incorporated into a film that coats the surface component. The diffractive optical elements can be produced, for example, by injection molding or by UV roll imprint (R2R / R2P).
In einer Ausführungsform ist vorgesehen, dass die Projektionsanordnung zwei oder mehr Lichtquellen und/oder dass das diffraktive optische Element zwei oder mehr Zonen mit einer diffraktiven Mikrostruktur aufweist. Beispielsweise können mehrere Zonen des diffraktiven optischen Elements, die jeweils eine eigene diffraktive Mikrostruktur aufweisen, variabel mit derselben oder unterschiedlichen Lichtquellen anstrahlen, um unterschiedliche Projektionen zu erhalten, beispielsweise abhängig vom Betriebszustand des Geräts unterschiedliche Informationen anzuzeigen.In one embodiment it is provided that the projection arrangement has two or more light sources and / or that the diffractive optical element has two or more zones with a diffractive microstructure. For example, a plurality of zones of the diffractive optical element, each of which has its own diffractive microstructure, can illuminate variably with the same or different light sources in order to obtain different projections, for example to display different information depending on the operating state of the device.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den nachfolgend anhand der Figuren beschriebenen Ausführungsbeispielen. In den Figuren zeigen:
- Figur 1:
- eine schematische Darstellung einer Informationsprojektion mittels einer erfindungsgemäß ausgebildeten Projektionsanordnung umfassend ein DOE;
- Figur 2:
- schematische Darstellungen einer Symbolprojektion mittels einer erfindungsgemäß ausgebildeten Projektionsanordnung umfassend ein DOE; und
- Figur 3:
- eine Darstellung einer Beleuchtungsanordnung eines erfindungsgemäßen Kühl- und/oder Gefriergeräts mit integrierter Projektionsanordnung.
- Figure 1:
- a schematic representation of an information projection by means of a projection arrangement according to the invention comprising a DOE;
- Figure 2:
- schematic representations of a symbol projection by means of a projection arrangement according to the invention comprising a DOE; and
- Figure 3:
- a representation of a lighting arrangement of a refrigerator and / or freezer according to the invention with an integrated projection arrangement.
Eine Projektionsanordnung 10 zur Anzeige von Informationen wie beispielsweise Angaben zu Innenraumtemperatur, Uhrzeit, Gerätestatus oder dergleichen, wie sie in einem erfindungsgemäßen Kühl- und/oder Gefriergerät zum Einsatz kommt, ist in
Das kennzeichnende Merkmal der optisch effektiven Zone 31 des diffraktiven optischen Elements 30 umfasst eine Mikrostruktur, welche an dem einfallenden Lichtstrahl 50 ein Interferenzmuster erzeugt und so eine Strahlformung bewirkt.The characteristic feature of the optically
Die
Eine etwas detailliertere Darstellung einer konkreten baulichen Ausgestaltung einer erfindungsgemäß ausgebildeten Projektionsanordnung ist in
Die erfindungsgemäß ausgebildete Projektionsanordnung ist in dieser Leuchte so integriert, dass eine Lichtquelle 20 der Projektionsanordnung an der Rückseite der Nische 161 hinter der Lichtleiterplatte 120 sitzt und einen Lichtstrahl 50 durch die transparente Lichtleiterplatte 120 hindurch auf die Diffusor-Glasplatte 130 wirft. In der Diffusor-Glasplatte 130 ist eine Zone 131 mit einer diffraktiven Mikrostruktur eingearbeitet, sodass die Glasplatte 132 nicht nur als Diffusor, sondern gleichzeitig auch als diffraktives optisches Element dient. An der optisch effektiven Zone 131 der Glasplatte 132 wird der Lichtstrahl 50 so umgeformt, dass er ein Logo 50 an einer nicht näher dargestellten Oberfläche abbildet.The projection arrangement designed according to the invention is integrated in this luminaire in such a way that a
Claims (10)
dadurch gekennzeichnet,
dass das Gerät eine Projektionsanordnung zur Abbildung einer Information oder Symbolik auf einer sichtbaren Oberfläche aufweist, wobei die Projektionsanordnung eine Lichtquelle und ein diffraktives optisches Element zur Beugung eines von der Lichtquelle emittierten Lichtstrahls umfasst.Refrigerator and / or freezer with a heat-insulated body, which encloses an interior cooled by a heat pump, a removal opening being provided through which the interior is accessible from the outside of the appliance, and a door or a lid being provided around which Close the discharge opening,
characterized,
that the device has a projection arrangement for imaging information or symbols on a visible surface, the projection arrangement comprising a light source and a diffractive optical element for diffraction of a light beam emitted by the light source.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018124077 | 2018-09-28 | ||
DE102018132602.5A DE102018132602A1 (en) | 2018-09-28 | 2018-12-18 | Refrigerator and / or freezer |
Publications (2)
Publication Number | Publication Date |
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EP3628950A1 true EP3628950A1 (en) | 2020-04-01 |
EP3628950B1 EP3628950B1 (en) | 2024-01-17 |
Family
ID=68072267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19200103.0A Active EP3628950B1 (en) | 2018-09-28 | 2019-09-27 | Cooling and / or freezer |
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EP (1) | EP3628950B1 (en) |
ES (1) | ES2977452T3 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040062031A1 (en) * | 2002-09-30 | 2004-04-01 | Matt Pinter | Illuminated shelf |
DE102004062751A1 (en) * | 2004-12-27 | 2006-07-06 | BSH Bosch und Siemens Hausgeräte GmbH | household appliance |
WO2008014269A2 (en) * | 2006-07-24 | 2008-01-31 | Fortune Resources/Source 1 Displays | Decorative door for cooler |
DE202016006259U1 (en) * | 2016-10-11 | 2017-02-17 | Schulte Duschkabinenbau Gmbh & Co. Kg | Display device and cooling device |
CN107062767A (en) * | 2017-06-30 | 2017-08-18 | 青岛海容商用冷链股份有限公司 | Showcase air inlet |
WO2018202398A1 (en) * | 2017-05-01 | 2018-11-08 | BSH Hausgeräte GmbH | Domestic appliance comprising illumination device for recessed grip |
-
2019
- 2019-09-27 ES ES19200103T patent/ES2977452T3/en active Active
- 2019-09-27 EP EP19200103.0A patent/EP3628950B1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040062031A1 (en) * | 2002-09-30 | 2004-04-01 | Matt Pinter | Illuminated shelf |
DE102004062751A1 (en) * | 2004-12-27 | 2006-07-06 | BSH Bosch und Siemens Hausgeräte GmbH | household appliance |
WO2008014269A2 (en) * | 2006-07-24 | 2008-01-31 | Fortune Resources/Source 1 Displays | Decorative door for cooler |
DE202016006259U1 (en) * | 2016-10-11 | 2017-02-17 | Schulte Duschkabinenbau Gmbh & Co. Kg | Display device and cooling device |
WO2018202398A1 (en) * | 2017-05-01 | 2018-11-08 | BSH Hausgeräte GmbH | Domestic appliance comprising illumination device for recessed grip |
CN107062767A (en) * | 2017-06-30 | 2017-08-18 | 青岛海容商用冷链股份有限公司 | Showcase air inlet |
Also Published As
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EP3628950B1 (en) | 2024-01-17 |
ES2977452T3 (en) | 2024-08-23 |
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