EP0684425B1 - Leuchte mit mindestens einem Leuchtmittel - Google Patents
Leuchte mit mindestens einem Leuchtmittel Download PDFInfo
- Publication number
- EP0684425B1 EP0684425B1 EP95101440A EP95101440A EP0684425B1 EP 0684425 B1 EP0684425 B1 EP 0684425B1 EP 95101440 A EP95101440 A EP 95101440A EP 95101440 A EP95101440 A EP 95101440A EP 0684425 B1 EP0684425 B1 EP 0684425B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- luminaire according
- reflector
- reflector part
- shielding elements
- luminaire
- 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
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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
- 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
- F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens
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- 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
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
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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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
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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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
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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
-
- 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
- F21V5/02—Refractors for light sources of prismatic shape
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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
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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
- F21V7/00—Reflectors for light sources
- F21V7/0008—Reflectors for light sources providing for indirect lighting
- F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
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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
- F21V7/00—Reflectors for light sources
- F21V7/0025—Combination of two or more reflectors for a single light source
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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
- F21V7/00—Reflectors for light sources
- F21V7/0058—Reflectors for light sources adapted to cooperate with light sources of shapes different from point-like or linear, e.g. circular 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/09—Optical design with a combination of different curvatures
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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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
- F21V21/04—Recessed bases
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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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
- F21V33/0056—Audio equipment, e.g. music instruments, radios or speakers
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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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0064—Health, life-saving or fire-fighting equipment
-
- 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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0064—Health, life-saving or fire-fighting equipment
- F21V33/0076—Safety or security signalisation, e.g. smoke or burglar alarms, earthquake detectors; Self-defence devices
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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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0088—Ventilating systems
- F21V33/0092—Ventilating systems with heating or cooling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
- F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
- F21Y2103/37—U-shaped
Definitions
- the invention relates to a lamp with at least one lamp and one assigned to the illuminant and constructed from at least two reflector parts Reflector system, the reflector system consisting of an encircling outer and concentrically arranged, surrounding inner reflector part and a plurality of dimming elements are provided.
- the reflector system consists of an inner and an outer Reflector, the shielding elements extending radially to the axis of the lamp are interconnected.
- the anti-glare properties of such a lamp are essentially good, but the cost to implement such a stop is quite high.
- the subsequently published EP-A-0619454 is a lamp with a bowl-shaped main reflector and a concentrically arranged Secondary reflector.
- the ring-shaped secondary reflector consists of two concave elements, that are connected on one side. Furthermore are on the outside Element of the secondary reflector arranged radially extending slats, the free end areas between the lower edge of the main reflector and one can be clamped on this arranged cover ring.
- DE-A-2731671 is concerned with a ceiling lamp, in which under an annular Illuminant is a translucent element with a large refractive index is arranged. This element prevents rays of light from being too flat Angle leave the lamp.
- JP-A-06187812 describes a lamp with a bowl-shaped main reflector and an annular secondary reflector, between which radially extending Slats are arranged. The top of the slats is reflective Apply a layer to increase the light output.
- the illuminant is annular is arranged, the lamp is surrounded by the reflector parts in a toroidal manner and a plurality of shielding elements at a distance from one another with one end at a time a reflector part are attached while the other ends of the shielding elements cantilever freely and at a distance from the other reflector part.
- dimming elements that were known in the prior art were known extending from the inner to the outer reflector wall.
- the one-sided suspension the dimming elements has the particular advantage that only the inner Reflector part with attachment points for the anti-glare elements must be provided. After installing the dimming elements the inner reflector part becomes the inner reflector part in the outer reflector part fitted. The material and As a result, manufacturing costs are negligible Dimming properties reduced.
- this is on the reflector attached end of the shielding elements to the inner Reflector part attached. This makes it, for example, at a later change of lamp is only necessary inner reflector part with the arranged on it To remove the dimming elements from the rest of the luminous element, to have access to the lamp. Furthermore can make internal reflector parts with the most varied Dimming elements in an otherwise constant Luminaire body can be used. Through the invention now also achieved that when using ring-shaped reflector parts and several shielding elements, that do not reach the outer reflector part, the in the vicinity of the outer reflector part on the Anti-glare shielding passing radiation very low is and exits at such an angle that the Dimming properties of these not consistent Dimming elements are not adversely affected.
- the outside is Reflector part from a substantially towards the Illuminant concave curved ring formed during the inner reflector part of one with one in the same Direction as the outer reflector part is concavely curved Inner surface provided, smaller ring is formed.
- the inner reflector part can thus be used as a downlight reflector Find use that does not have anti-glare elements must be and if necessary to send the Main luminous flux component contributes.
- the illuminant can preferably be from Compact fluorescent tubes are formed. These will preferably laterally at the upper end of the reflector system arranged and regrouped largely symmetrically the center axis of the reflector system.
- the dimming elements essentially radially to the center axis the reflector parts can be arranged.
- the shielding elements in each case by 5 to 30 °, preferably 15 ° to the center axis of the reflector parts arranged. Due to the uniform arrangement of the Dimming elements also have a uniform dimming.
- the dimming elements In order to keep the mass of the dimming elements relatively low, can have a substantially lamella shape, because to fulfill a desired dimming property, e.g. at opaque material, the height of more crucial Significance is the thickness of the anti-glare elements.
- the inner and outer reflector part in cross section essentially the shape of a cycloparabic section, whereby largely optimal reflection conditions provided become.
- the shielding elements can advantageously starting from the inner reflector part towards the outer Reflector part at a downward angle be arranged.
- the length of the is within the Reflector system arranged dimming section about between 0.6 - 0.9 times the outlet width between the inner and outer reflector part of the reflector.
- the proportions and arrangement of the two reflector parts to each other so that by the inner reflector 50 to 80% and the outer reflector 20 to 50% of the total luminous flux is directed outside become.
- a relatively inexpensive variant is that at least the inner reflector part and the anti-glare elements made of plastic coated with a reflective layer are manufactured.
- a more complex and expensive production made of metal can be omitted with this variant.
- the dimming elements with a common to the outside of the inner reflector part attachable ring with which they are attached. she can then preferably together with this with a reflective layer made of vapor-coated plastic his.
- This configuration is particularly desirable if very high from the inner reflector part Reflection requirements are expected, so this still separate from the dimming elements from one Material with better reflective properties than that Dimming elements can be produced. For this reason can at least the inner reflector part from a metal ring be made.
- Dimming elements preferably on the upper area of the inner reflector part arranged.
- the inner reflector part can horizontally follow the outer reflector part protrude below, resulting in a greater concentration of the through the inner reflector part passing luminous flux can take place.
- the reflector can have two parts be trained.
- the inner end of the anti-glare elements arranged essentially at the height of the lamp on the inner reflector part be so that the main part of the incident on the inner reflector at least Luminous flux portion already subjected to the dimming effect of the dimming elements has been.
- a ring lamp e.g. in form of a annular fluorescent tube used.
- a ring lamp e.g. in form of a annular fluorescent tube used.
- the reflector parts can essentially in the area above the attachment points the dimming elements be connected.
- Each reflector part is therefore easy to manufacture Profile that is only used to shape the annular reflector with the other Reflector part is connected.
- the inner and outer reflector part with respect to the lamp be concavely curved.
- Such a curvature enables the focal points of the cycloparabic sections on the outer circumference of the lamp lie.
- the shielding elements can advantageously be essentially crescent-shaped which has the advantage that the reflector aperture is as narrow as possible, and that the largest possible proportion already within the target radiation range incoming radiation can escape unhindered.
- the inner end of the anti-glare elements can essentially at the height of the lamp on the inner reflector part be attached so that the view of the slat retaining ring under flat Angle is avoided.
- the upper and lower edges of the crescent-shaped shielding elements can each Have circular arc segments whose respective centers on a common, lie essentially through the connecting line axis.
- the functionality of the lamp can be increased by the fact that from the outside area of the inner reflector part as an accessory room for arrangement and inclusion of cover elements, e.g. Ceiling tiles and / or additional lighting components, e.g. Downlights, spotlights and / or building technology Components, e.g. Sprinklers, speakers, air conditioning / ventilation systems can be used is.
- cover elements e.g. Ceiling tiles and / or additional lighting components, e.g. Downlights, spotlights and / or building technology Components, e.g. Sprinklers, speakers, air conditioning / ventilation systems can be used is.
- the lamp can be seen essentially from the inside of the reflector bounded area, which as an accessory room for arrangement and recording of lighting components in particular can be used.
- openings are arranged in the inner reflector part, through which light emitted by the illuminant enters the accessory room and through a lower opening of the accessory room radiates into the free space.
- a portion of the luminous flux is branched into the accessory room, the then emitted proportionately through the lower opening into the room to be illuminated becomes. This allows a separate light source to be attached to the center lighting components are eliminated.
- the lower opening of the Accessories room are at least partially covered by a lamp glass.
- a particular advantage is when the lamp glass is a diffuse glass pane.
- the strong radiation from the main reflector is then diffused with a soft Radiation superimposed.
- the shimmer of this disc ensures the luminance contrast to bring the luminaire and its surroundings to a comfortable level and reduce glare.
- the viewer is visually symbolized where the light comes from and the lamp serves as a substitute for the sky. This is particularly due to the combination of directed light and diffuse light emphasizes what is also a characteristic of daylight.
- the openings are preferably at substantially the same level as that Bulbs arranged to emit as much of the radiation in the accessory room as possible bring in. This is also reinforced by the fact that the breakthroughs in each case can be arranged between the shielding elements.
- the efficiency can be increased in that in the accessories room at least one reflector component is arranged, which light emerging from the openings onto the lamp glass distracts. It is preferably essentially coaxial with Luminaire axis as a reflector component a truncated cone Reflector arranged in the accessory room, the outer surface is essentially curved to make the light as uniform as possible to hit the lamp glass.
- the Dimming elements are essentially designed as prismatic lenses his. With appropriately designed lenses very good light characteristics also in this embodiment can be achieved.
- all dimming elements together be formed by a ring lens, at least corresponding prismatic recesses on its underside having. The manufacturing and assembly effort leaves reduce significantly through this training.
- the prismatic recesses are triangular in cross section educated.
- the ring lens can be on the top on the other hand, be essentially flat.
- the Dimming elements are designed in the form of a grid. All possible grid shapes are conceivable in this context, such as. Polygon and round shapes. Grid have also proven as anti-glare elements.
- the grid can be formed in one piece his.
- the grid is essentially made up of several cylindrical cell bodies with essentially centric Light passage openings built.
- the cell bodies are strung together to Luminaire axis arranged in concentric circles, to achieve a relatively regular structure of the grid.
- the dimming properties of the grid are thereby improves that the diameter of the cell body and the respective light passage openings to the outside from Increase pitch circle to pitch circle. Has an advantageous effect thereby also from when the heights of the cell body and the respective light passage openings to the outside from Increase pitch circle to pitch circle.
- the attachment point on the inner reflector part as possible can be arranged at the level of the illuminant the cell bodies of different sub-circles at least partially arranged offset in height from each other.
- the efficiency can be increased in particular by that the inner surfaces of the light passage openings are curved are formed so that in each case the diameter of the light passage opening smaller at the top of the cell body is as at the bottom.
- the shielding elements can advantageously be arranged on a substantially circumferential one Support ring may be arranged, which is attached to the inner reflector part. This allows all dimming elements to be attached to the reflector in a single operation be attached.
- the openings can be arranged in the support ring, whereby the Reflector only a geometrically simple ring recess for fitting the Support ring required.
- the embodiment shown in the figures includes Illuminant 1 in the form of three linear Compact fluorescent tubes, one of the bulbs 1 assigned reflector system 2 and several essentially arranged within the reflector system 2 Dimming elements 3.
- the reflector system 2 consists of a inner reflector part 4 and an outer reflector part 5, each curved concavely with respect to the central axis 10 are and have a ring shape.
- the reflector parts 4, 5 have essentially the shape of a cross section Cycloparabic section.
- the inner reflector part 4 has essentially the shape of a downlight reflector on and serves to forward most of the luminous flux in the Range of approx. 50 to 80%, which is due to the reflector system 2 is directed outside.
- the dimming elements are common with a support ring 41 connecting them from a Plastic made by injection molding, which is then can be treated on its surface.
- the highly reflective inside 42 of the inner reflector part 4 is made of a correspondingly shaped aluminum press part 43 formed.
- the support ring 41 is on the surface of the adapted the upper end region of the aluminum pressing part 43 and can be placed on this with a perfect fit.
- the fixation of the support ring 41 takes place downward through the shape of the Metal ring 43 and upwards by a bent circumferential edge section 44. So that the lower region of the inner reflector part 4 on the outside a uniform Surface quality is at the bottom of the inner reflector part 4 also to the Outer surface adapted reflector cover 45 is provided. This can also be made of plastic by injection molding manufactured and then with a reflective Layer are vaporized.
- the bracket of the The reflector cover 45 can be covered by a circumferential ring 46 and a corresponding design of the lower one Edge area of the reflector cover 45 take place. Of others can be used to insert the Reflector cover 45 and the support ring 41 each corresponding cover areas 47 at their junction be provided.
- the dimming elements 3 are each 15 ° around the central axis 10 of the reflector system 2 arranged offset.
- the lamellar shielding elements 3 can in cross section a rectangular shape or a trapezoidal shape is preferred have curved side edges.
- the side faces of the Dimming elements 3 are preferably matted.
- the length L of the arranged on the inner reflector 4 Dimming element section lies approximately between the 0.6 - 0.9 times that from the gap to the inner reflector 4 and Outer reflector 5 formed outlet width A.
- the free end the anti-glare elements 3 is the contour of the outer Modeled reflector part 5.
- the outer reflector part 5 also has a circumferential one Collar 15 on the as a cover element in the Ceiling attachment serves as with another Embodiment described in more detail below becomes.
- the attachment of such a lamp is also described below.
- the inner reflector part 4 can also on the project beyond the lower edge of the outer reflector part 5. It is to recognize that only a luminous flux component in one Order of 20 to 50% through the opening between the inner and outer reflector part 4, 5 passes and is dimmed by the dimming elements 3.
- the inner Reflector part 4 together with the anti-glare elements 3 made of metal or vapor-coated plastic, especially acrylic. But it is also one Variant conceivable in which the upper half is made of steamed Plastic and the lower half is prismatic. Instead of plastic, there is also the use of glass possible.
- Dimming elements 3 instead of the slat shape of the Dimming elements 3 also other forms of Dimming options, such as Prisms.
- the present invention essentially comprises an annular one Illuminant 1 in the form of an annular fluorescent tube, an annular one associated with the illuminant 1 Reflector 2 and several essentially within the reflector arranged shielding elements 3.
- the ring-shaped Reflector 2 consists of an inner and an outer, in with respect to the lamp 1 concavely curved, annular Reflector parts 4, 5.
- the reflector parts 4, 5 have a cross section essentially the shape of a cycloparabic section, those in the area above the fastening points of the shielding elements are interconnected. How in particular 5 can be seen, the reflector 2 on both sides in Area above the lamp in an involute shape so that the light rays do not pass in this area be reflected back into the illuminant 1.
- the reflector 2 can be divided in the reflector cross-sectional axis 6 his. However, there is an asymmetrical division in the area above the attachment point 9 of the shielding elements 3 preferred, so that the outer reflector part 5 a larger Cross-sectional area covers as the inner reflector part 4 and the inner reflector part 5 together with the shielding elements 2 removed from the lamp with little effort can be.
- the attachment point on the inner reflector part 4 is generally referenced 9 referred to, since the attachment of the anti-glare elements 3 on different Way on the inner reflector part 4 can be executed.
- the attachment point 9 is located essentially at the same height as the illuminant 1.
- the arrangement of the dimming elements 3 takes place in such a way that the shielding elements 3 are substantially radial to the central axis 10 of the lamp 1 are arranged. Are there the shielding elements 3 each by 15 ° around the central axis 10 of the illuminant 1 arranged offset.
- the lamellar Dimming elements 3 can have a rectangular shape in cross section or a trapezoidal shape with preferably curved side edges exhibit. The side faces of the dimming elements 3 can be mirrored.
- the length L of the shielding element section arranged inside the reflector 2 lies between the 0.6 to 0.9 times the exit width A of the reflector 2.
- the free End of the anti-glare elements 3 is chamfered such that the lower edge 8 brought closer to the outer reflector part 5 is as the top edge 7.
- an accessory room 12 for arrangement and inclusion of various elements can be used.
- Fig. 6 an embodiment is shown in which e.g. on Cover element 13 in the form of a ceiling plate in the accessories room 12 arranged for this purpose, the inner reflector part 4 a circumferential collar 14 for supporting the cover element 13 on.
- additional ones could also be used lighting components, e.g. Downlights, spotlights etc. and / or building components, e.g. Sprinklers, speakers, air conditioning / ventilation systems, in and on Area of the accessory room 12 may be arranged.
- the embodiment shown in the figures is a recessed ceiling light, the one on its outer reflector part 5 encircling flange 15 which is opposite one Mounting ceiling 16 supports, while the reflector 2, the Illuminant 1 and the dimming elements 3 within one Opening are arranged in the ceiling plate 16.
- the reflector 2 For fixing the lamp on the ceiling plate 16 are known Ceiling plate 16 engaging and with a spindle drive adjustable claws 17 used.
- the one Linear lamp with a linear lamp 18 and a linear reflector 19 and a circular lamp with a ring-shaped reflector and illuminant shows.
- the reflectors of the two lights should have the same cross section. Now becomes a fictional one Light beam emitted at point B of the two lights, which is tangent to the round lamp and can thus be regarded as a boundary ray, this is it light beam of lower intensity reflected at point C. as if the same light beam at point D of the linear reflector 19 would be reflected.
- FIG. 9 shows a cross section a ring light according to the invention, in which the dimming element 3 only on one side on the inner reflector part 4 attached and its free end at a distance from outer reflector part 5 is arranged. Because of the curvature the ring-shaped lamp passes through between the dimming element 3 and the outside Reflector part formed gap 23 only a small proportion of false radiation, which only slightly affects the dimming properties.
- Beam 24 begins at point a and becomes at that outer reflector part 5 reflected at point b and then emitted to the outside.
- the Beam 24 is selected so that it does not hit any dimming element 3. The number however, such rays are so small that their light intensity no longer has a disturbing effect.
- the points a and b are each in their projection and drawn as a 'and b' as rotated into the cross section of the reflector.
- the fictional beam 25 starts at c and is on the outer reflector part 5, at point d reflected.
- This beam then strikes a shielding element 3 at point e, which preferably has a diffusely reflecting surface.
- the beam 25 is chosen that this just hits a dimming element 3.
- the points c, d and e are entered in the above illustration similar to points a and b.
- a luminaire with sufficient dimming properties can be achieved can be manufactured with lower material and manufacturing costs.
- the size and spacing the breakthroughs 26 are chosen so that they each are arranged between the dimming elements 3.
- a lower one Opening 27 of the accessory room 12 is with a lamp glass 28 covered.
- the lamp glass 28 is a diffuse glass pane, the incident radiation scatters.
- the smaller Diameter is assigned to the lamp glass 28.
- the outer surface of the reflector 29 is concavely curved, in order as possible the light strike the lamp glass 28 evenly to let.
- the shimmer of the lamp glass 28 ensures the luminance contrast between the luminaire and the surroundings to bring to a comfortable level and glare sensations to reduce.
- the viewer is visually symbolized where the light comes from and the lamp serves as a replacement for the sky. This is further enhanced by the combination of directional light and diffuse light emphasizes what is also a characteristic of daylight is.
- the shielding elements 3 are in this embodiment as contiguous prismatic ring lens 31 is formed.
- the Ring lens 31 has corresponding prismatic on its underside Recesses 32, the bottom 33 essentially a parallel distance to the flat top of the ring lens 31 has.
- the prismatic recesses are triangular in cross section, so that along the bottom of the ring lens 31 a All-round, sawtooth-like profile is created. Furthermore is the outer edge of the ring lens 31 towards the bottom provided with a chamfer 34. The bottom of the ring lens 31 is not parallel to the top, so that the ring lens 31 outwards until the chamfer 34 is reached has increasing thickness.
- the angle of the chamfer 34 is preferably 60 ° to the vertical. With the prismatic recesses 32, a tip angle of approximately 120 ° is preferred.
- the inner edge 35 of the ring lens 31 engages in an annular Breakthrough 26 in the reflector 2, whereby a certain Luminous flux component from the inner edge area of the ring lens 31 in aen accessory room 12. So in this area if there is no dimming effect, the end prismatic recesses 32 still within the reflector area.
- a colored lamp glass 36 at the opening 27 can be arranged.
- the shielding elements 3 are in this embodiment as formed a one-piece grid, which below the Illuminant 1 is arranged.
- the grid consists of several cylindrical cell bodies 37 with central light passage openings 38.
- Each cell body 37 of a particular one Diameters are strung together to Luminaire axis 10 arranged concentric circles.
- the diameters of the cell bodies 37 include of the respective light passage openings 38 outside from pitch circle to pitch circle. Also take the Heights of the cell body 37 including the respective light passage openings 38 outwards from pitch circle to pitch circle to. This measure serves to improve the dimming effect.
- the cell bodies 37 of different sub-circles at least partially offset from each other so that the Grid is led around the lamp 1 in some areas.
- the inner surfaces 39 are used to improve the efficiency of the light passage openings 38 are curved.
- the Diameter of the light passage opening 38 at the upper end of the cell body 37 is smaller than the diameter on lower end. Furthermore, there are 37 between the cell bodies Light wells 40 formed to loosen up the grid and improve efficiency.
- the outer surfaces of the cell bodies 37 are preferably vapor-coated with a reflective layer, the ones shown in dotted lines in FIG. 17 Areas of the light wells 40 can remain untreated.
- the grid is arranged on a circumferential support ring 41, which is attached to the inner reflector part 4.
- a Support ring 41 can also be used for all other forms of dimming elements 3 are used, which makes them common in be attached to the inner reflector part 4 in one step can.
- the support ring 41 adapted to the inner contour of the reflector 2.
- the breakthroughs can be used to simplify the manufacture of reflectors 26 may be arranged in the support ring 41.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
- Fig. 1
- eine perspektivische Ansicht einer in einer Decke eingebauten Leuchte,
- Fig. 2
- die Leuchte aus Fig. 1 in einer perspektivischen Darstellung von einem Bezugspunkt unmittelbar unter der Leuchte gesehen,
- Fig. 3
- das innere Reflektorteil der Leuchte aus Fig. 1 in verkleinerter perspektischer Darstellung,
- Fig. 4
- eine Schnittdarstellung des inneren Reflektorteils aus Fig. 1
- Fig. 5
- einen Vollschnitt einer Ausführungsform der erfindungsgemäßen Leuchte,
- Fig. 6
- die Hälfte einer Unteransicht der Leuchte aus Fig. 5,
- Fig. 7
- die Reflexion zweier fiktiver Lichtstrahlen bei der in den Figuren 5 und 6 dargestellten Leuchte,
- Fig. 8
- einen Vergleich zwischen Linearleuchte und erfindungsgemäßer Leuchte in einer Unteransicht,
- Fig. 9
- einen Querschnitt durch den erfindungsgemäßen Reflektor,
- Fig. 10
- einen Querschnitt durch eine vergleichbare Linearleuchte, die den gleichen Reflektorquerschnitt aufweist,
- Fig. 11
- eine schematische Querschnittsdarstellung einer zweiten Ausführungsform der vorliegenden Erfindung,
- Fig. 12
- eine schematische Unteransicht eines Teilausschnittes einer zweiten Variante eines Abblendelementes in Form einer prismatischen Linse,
- Fig. 13
- die prismatische Linse aus Fig. 12 entlang der Linie IX-IX geschnitten und in die erfindungsgemäße Leuchte eingebaut,
- Fig. 14
- die prismatiscne Linse aus Fig. 12 entlang der Linie X-X geschnitten,
- Fig. 15
- eine Ansicht der prismatischen Linse aus Fig. 12 von der Richtung XI aus gesehen,
- Fig. 16
- eine Unteransicht einer weiteren Variante von in der Leuchte eingebauten Abblendelementen in einer Teilansicht und
- Fig. 17
- die Leuchte gemäß Fig. 16 entlang der Linie XIII-XIII geschnitten.
Claims (47)
- Leuchte mit mindestens einem Leuchtmittel (1) und einem dem Leuchtmittel (1) zugeordneten, aus mindestens zwei Reflektorteilen (4, 5) aufgebauten Reflektorsystem (2), wobei das Reflektorsystem (2) aus einem umlaufenden äußeren und konzentrisch dazu angeordneten, umlaufenden inneren Reflektorteil (4, 5) besteht und wobei mehrere Abblendelemente (3) vorgesehen sind, dadurch gekennzeichnet, daß das Leuchtmittel (1) ringförmig angeordnet ist, das Leuchtmittel (1) von den Reflektorteilen (4,5) torusartig umgeben ist, und mehrere Abblendelemente (3) im Abstand zueinander mit ihrem einen Ende an jeweils einem Reflektorteil (4) befestigt sind, während jeweils die anderen Ende der Abblendelemente (3) frei auskragen und einen Abstand zu dem anderen Reflektorteil (5) aufweisen.
- Leuchte nach Anspruch 1, dadurch gekennzeichnet, daß das am Reflektorsystem (2) befestigte Ende der Abblendelemente (3) an dem inneren Reflektorteil (4) angeordnet ist.
- Leuchte nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das äußere Reflektorteil (5) von einem im wesentlichen in Richtung der Mittenachse (10) des Reflektorsystems (2) konkav gekrümmten Ring gebildet ist, während das innere Reflektorteil (4) von einem mit einer in gleicher Richtung wie das äußere Reflektorteil (5) konkav gekrümmten Innenfläche (42) versehenen, kleineren Ring gebildet ist.
- Leuchte nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Leuchtmittel (1) von Kompaktleuchtstoffröhren gebildet ist.
- Leuchte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Abblendelemente (3) im wesentlichen radial zur Mittenachse (10) der Reflektorteile (4, 5) angeordnet sind.
- Leuchte nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Abblendelemente (3) jeweils um 5 bis 30°, bevorzugt 15°, um die Mittenachse (10) der Reflektorteile (4, 5) versetzt angeordnet sind.
- Leuchte nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Abblendelemente (3) im wesentlichen eine Lamellenform aufweisen.
- Leuchte nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das innere und äußere Reflektorteil (4, 5) jeweils im Querschnitt im wesentlichen die Form eine Zykloparabelabschnittes aufweisen.
- Leuchte nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Abblendelemente (3) ausgehend von dem inneren Reflektorteil (4) in Richtung des äußeren Reflektorteils (5) in einem nach unten gerichteten Winkel angeordnet sind.
- Leuchte nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Länge (L) des innerhalb des Reflektorsystems (2) angeordneten Abblendelementenabschnittes etwa in dem 0,6 - 0,9-fachen der Austrittsweite (A) zwischen dem inneren und äußeren Reflektorteil (4, 5) des Reflektorsystems (2) liegt.
- Leuchte nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß an den freien Enden einiger Abblendelemente (3) Federrastelemente (48) angeordnet sind, die mit dem äußeren Reflektorteil (5) federnd in Eingriff stehen.
- Leuchte nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die Größenverhältnisse und Anordnung der beiden Reflektorteile (4, 5) so zueinander erfolgt, daß durch das innere Reflektorteil (4) 50 bis 80% und durch das äußere Reflektorteil 20 bis 50% des gesamten Lichtstroms nach außen gelenkt sind.
- Leuchte nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß mindestens das innere Reflektorteil (4) und die Abblendelemente (3) aus mit einer reflektierenden Schicht bedampften Kunststoff hergestellt sind.
- Leuchte nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die Abblendelemente (3) mit einem gemeinsamen auf die Außenseite des inneren Reflektorteils (4) aufsetzbaren Tragring (41) befestigt sind und mit diesem bevorzugten gemeinsam aus mit einer reflektierenden Schicht bedampften Kunststoff hergestellt sind.
- Leuchte nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß zumindest das innere Reflektorteil (4) aus einem Aluminiumdrückteil (43) hergestellt ist.
- Leuchte nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Abblendelemente (3) am oberen Bereich des inneren Reflektorteils (4) angeordnet sind.
- Leuchte nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß das innere Reflektorteil (4) das äußere Reflektorteil (5) nach unten überragt.
- Leuchte nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, daß der Reflektor (2) zweiteilig ausgebildet ist.
- Leuchte nach Anspruch 18, dadurch gekennzeichnet, daß das innere Ende der Abblendelemente (3) im wesentlichen in Höhe des Leuchtmittels (1) an dem inneren Reflektorteil (4) angeordnet ist.
- Leuchte nach Anspruch 18 bis 19, dadurch gekennzeichnet, daß das ringförmige Leuchtmittel (1) von einer Ringlampe gebildet ist.
- Leuchte nach einem der Ansprüche 18 bis 20, dadurch gekennzeichnet, daß die Reflektorteile (4,5) im wesentlichen im Bereich oberhalb der Befestigungsstellen (9) der Abblendelemente (3) miteinander verbunden sind.
- Leuchte nach einem der Ansprüche 18 bis 21, dadurch gekennzeichnet, daß das innere und äußere Reflektorteil (4,5) in bezug auf das Leuchtmittel (1) konkav gekrümmt sind.
- Leuchte nach einem der Ansprüche 18 bis 22, dadurch gekennzeichnet, daß der obere und untere Rand (7, 8) der sichelförmigen Abblendelemente (3) jeweils Kreisbogensegmente aufweisen, deren Mittelpunkte im wesentlichen auf der Reflektorquerschnittsachse (6) liegen.
- Leuchte nach einem der Ansprüche 18 bis 23, dadurch gekennzeichnet, daß der von der Außenseite des inneren Reflektorteils (4) umgrenzte Bereich als Zubehörraum (12) zur Anordnung und Aufnahme von Abdeckelementen (13), z.B. Deckenplatten, und/oder zusätzlichen lichttechnischen Komponenten, z.B. Downlights, Strahler, und/oder gebäudetechnischen Komponenten, z.B. Sprinkler, Lautsprecher, Klima-/Lüftungsanlagen, verwendbar ist.
- Leuchte nach einem der Ansprüche 18 bis 24, mit einem im wesentlichen von der inneren Außenseite des Reflektors (2) umgrenzten Bereich, der als Zubehörraum (12) zur Anordnung und Aufnahme von insbesondere lichttechnischen Komponenten verwendbar ist, und mit in dem inneren Reflektorteil (4) angeordneten Durchbrüchen (26), durch die von dem Leuchtmittel (1) ausgesendetes Licht in den Zubehörraum (12) eintritt und durch eine untere Öffnung (27) des Zubehörraum (12) in den freien Raum ausstrahlt.
- Leuchte nach Anspruch 25, dadurch gekennzeichnet, daß die untere Öffnung (27) des Zubehörraumes (12) zumindest teilweise von einem Leuchtenglas (28) abgedeckt ist.
- Leuchte nach Anspruch 26, dadurch gekennzeichnet, daß das Leuchtenglas (28) eine Diffusglasscheibe ist.
- Leuchte nach einem der Ansprüche 25 bis 27, dadurch gekennzeichnet, daß die Durchbrüche (26) im wesentlichen auf gleicher Höhe wie das Leuchtmittel (1) angeordnet sind.
- Leuchte nach einem der Ansprüche 20 bis 28, dadurch gekennzeichnet, daß die Durchbrüche (26) jeweils zwischen den Abblendelementen (3) angeordnet sind.
- Leuchte nach einem der Ansprüche 20 bis 29, dadurch gekennzeichnet, daß im Zubehörraum (12) mindestens eine Reflektorkomponente angeordnet ist, die aus den Durchbrüchen (26) austretendes Licht auf das Leuchtenglas (28) ablenkt.
- Leuchte nach einem der Ansprüche 20 bis 30, dadurch gekennzeichnet, daß im wesentlichen koaxial zur Leuchtenachse (10) als Reflektorkomponente ein kegelstumpfförmiger Reflektor (29) im Zubehörraum (12) angeordnet ist, dessen Mantelfläche im wesentlichen konkav gekrümmt ist.
- Leuchte nach einem der Ansprüche 1 bis 31, dadurch gekennzeichnet, daß die Abblendelemente (3) im wesentlichen als prismatische Linsen ausgebildet sind.
- Leuchte nach Anspruch 32, dadurch gekennzeichnet, daß alle Abblendelemente (3) zusammen von einer Ringlinse (31) gebildet sind, die zumindest an ihrer Unterseite entsprechende prismatische Ausnehmungen (32) aufweist.
- Leuchte nach Anspruch 33, dadurch gekennzeichnet, daß die prismatischen Ausnehmungen (32) im Querschnitt eine Dreiecksform aufweisen.
- Leuchte nach Anspruch 33 oder 34, dadurch gekennzeichnet, daß die Oberseite der Ringlinse (31) im wesentlichen eben ausgebildet ist.
- Leuchte nach einem der Ansprüche 32 bis 35, dadurch gekennzeichnet, daß die Ringlinse (31) mit ihrem inneren Rand (35) zumindest teilweise in die Durchbrüche (26) eingreift.
- Leuchte nach einem der Ansprüche 32 bis 36, dadurch gekennzeichnet, daß ein ringförmiger Durchbruch (26) im inneren Reflektorteil (4) vorgesehen ist, in den der innere Rand (35) der Ringlinse (31) eingreift.
- Leuchte nach einem der Ansprüche 1 bis 31, dadurch gekennzeichnet, daß die Abblendelemente (3) in Form eines Rasters ausgebildet sind.
- Leuchte nach Anspruch 38, dadurch gekennzeichnet, daß das Raster einteilig ausgebildet ist.
- Leuchte nach Anspruch 38 oder 39, dadurch gekennzeichnet, daß das Raster aus mehreren im wesentlichen zylinderförmigen Zellkörpern (37) mit im wesentlichen zentrischen Lichtdurchtrittsöffnungen (38) aufgebaut ist.
- Leuchte nach Anspruch 40, dadurch gekennzeichnet, daß die Zellkörper (37) jeweils aneinandergereiht auf zur Leuchtenachse (10) konzentrisch verlaufenden Teilkreisen angeordnet sind.
- Leuchte nach Anspruch 40 oder 41, dadurch gekennzeichnet, daß die Durchmesser der Zellkörper (37) und der jeweiligen Lichtdurchtrittsöffnungen (38) nach außen von Teilkreis zu Teilkreis zunehmen.
- Leuchte nach einem der Ansprüche 40 bis 42, dadurch gekennzeichnet, daß die Höhen der Zellkörper (37) und der jeweiligen Lichtdurchtrittsöffnungen (38) nach außen von Teilkreis zu Teilkreis zunehmen.
- Leuchte nach einem der Ansprüche 40 bis 43, dadurch gekennzeichnet, daß die Zellkörper (37) verschiedener Teilkreise zumindest teilweise höhenversetzt zueinander angeordnet sind.
- Leuchte nach einem der Ansprüche 40 bis 44, dadurch gekennzeichnet, daß die Innenflächen (39) der Lichtdurchtrittsöffnungen gekrümmt ausgebildet sind, so daß jeweils der Durchmesser der Lichtdurchtrittsöffnung (38) am oberen Ende des Zellkörpers (37) kleiner ist als am unteren Ende.
- Leuchte nach einem der Ansprüche 1 bis 45, dadurch gekennzeichnet, daß die Abblendelemente (3) an einem im wesentlichen umlaufenden Tragring (41) angeordnet sind, die an dem inneren Reflektorteil (4) angebracht ist.
- Leuchte nach Anspruch 46, dadurch gekennzeichnet, daß die Durchbrüche (26) im Tragring (41) angeordnet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4414742 | 1994-04-27 | ||
DE4414742A DE4414742A1 (de) | 1994-04-27 | 1994-04-27 | Leuchte mit mindestens einem ringförmigen Leuchtmittel |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0684425A2 EP0684425A2 (de) | 1995-11-29 |
EP0684425A3 EP0684425A3 (de) | 1996-04-10 |
EP0684425B1 true EP0684425B1 (de) | 2000-08-23 |
Family
ID=6516600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95101440A Expired - Lifetime EP0684425B1 (de) | 1994-04-27 | 1995-02-02 | Leuchte mit mindestens einem Leuchtmittel |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0684425B1 (de) |
AT (1) | ATE195798T1 (de) |
DE (3) | DE4414742A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7976187B2 (en) | 2008-03-27 | 2011-07-12 | Cree, Inc. | Uniform intensity LED lighting system |
US9310035B2 (en) | 2007-05-07 | 2016-04-12 | Cree, Inc. | Light fixtures and lighting devices |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19714971B4 (de) * | 1997-04-10 | 2004-08-19 | Siteco Beleuchtungstechnik Gmbh | Deckenleuchte mit einer ringförmigen Lampe |
DE19715288A1 (de) * | 1997-04-11 | 1998-10-15 | Acl Lichttechnik Gmbh | Flacher Reflektor für Deckeneinbauleuchten |
DE19735726A1 (de) * | 1997-08-18 | 1999-02-25 | Acl Lichttechnik Gmbh | Flacher Reflektor für Deckeneinbauleuchten mit großer Blendfreiheit |
DE19904933C1 (de) | 1999-02-06 | 2000-04-13 | Wila Leuchten Ag Sevelen | Leuchte |
DE29902563U1 (de) | 1999-02-13 | 1999-05-06 | Wila Leuchten Ag, Sevelen | Deckeneinbauleuchte |
DE19952502A1 (de) * | 1999-10-29 | 2001-05-03 | Acl Lichttechnik Gmbh | Deckenleuchte mit zwei ringförmigen Leuchtmitteln |
DE10040502C2 (de) * | 2000-08-18 | 2002-07-25 | Siteco Beleuchtungstech Gmbh | Rundleuchte mit einem ringförmigen Reflektor und Raster zur Verwendung in einer Rundleuchte |
DE10040500B4 (de) * | 2000-08-18 | 2005-06-23 | Siteco Beleuchtungstechnik Gmbh | Rasterbefestigung für eine Rundleuchte und zugehörige Leuchte |
DE10040501B4 (de) * | 2000-08-18 | 2006-11-30 | Siteco Beleuchtungstechnik Gmbh | Rundleuchte, Raster für Rundleuchte und Lamelle für Rundleuchte |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1065976A (de) * | 1954-06-01 | |||
FR782274A (fr) * | 1934-12-04 | 1935-06-01 | Système éclairant à faible brillance | |
FR983871A (fr) * | 1948-04-01 | 1951-06-28 | Appareil d'éclairage, en particulier pour salles d'opération | |
GB663957A (en) * | 1948-05-28 | 1951-01-02 | British Thomson Houston Co Ltd | Improvements in and relating to lighting fixtures |
FR1018154A (fr) * | 1949-05-17 | 1952-12-29 | Emi Ltd | Appareil de télévision et analogue |
DE952918C (de) * | 1953-12-29 | 1956-11-22 | Helmut Naumann Dr Ing | Leuchte fuer Lichtquellen grosser Laenge, aber mit kleinem Durchmesser, vorzugsweise fuer Blitzlicht-Entladungslampen |
DE1712537U (de) * | 1955-05-18 | 1955-12-08 | Heinz Mylius | Deckenleuchte. |
US3805051A (en) * | 1973-07-02 | 1974-04-16 | Raytheon Co | Catoptric lens arrangement |
DE2635431A1 (de) * | 1976-08-06 | 1978-02-09 | Zeiss Ikon Ag | Beleuchtungsanlage fuer direkte und indirekte beleuchtung |
DE2731671A1 (de) * | 1977-07-13 | 1979-01-25 | Christian Bartenbach | Deckenleuchte |
DE7925506U1 (de) * | 1979-09-08 | 1980-01-03 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Spiegelrasterleuchte |
DE3040015A1 (de) * | 1980-10-23 | 1982-05-13 | Kurt Kirchmann | Arbeitslampe |
DE8115785U1 (de) * | 1981-05-27 | 1981-10-08 | Korsch, Alfred, 4154 Tönisvorst | Leuchte fuer ringlampen |
DE3844892C2 (de) * | 1987-08-13 | 1996-07-25 | Wila Leuchten Gmbh | Reflektoranordnung und Abschirmung für eine Leuchte für Kompakt-Leuchtstofflampen |
DE8912632U1 (de) * | 1989-10-25 | 1989-12-21 | Herbert Waldmann GmbH & Co, 7730 Villingen-Schwenningen | Leuchte mit punktförmiger Halogenlampe |
JP3145216B2 (ja) * | 1992-12-18 | 2001-03-12 | 松下電工株式会社 | 照明器具 |
EP0619454B1 (de) * | 1993-04-07 | 1997-06-18 | Koninklijke Philips Electronics N.V. | Leuchtenraster und Leuchte mit einem solchen Raster |
-
1994
- 1994-04-27 DE DE4414742A patent/DE4414742A1/de not_active Ceased
-
1995
- 1995-02-02 EP EP95101440A patent/EP0684425B1/de not_active Expired - Lifetime
- 1995-02-02 DE DE59508651T patent/DE59508651D1/de not_active Expired - Lifetime
- 1995-02-02 DE DE29501661U patent/DE29501661U1/de not_active Expired - Lifetime
- 1995-02-02 AT AT95101440T patent/ATE195798T1/de active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9310035B2 (en) | 2007-05-07 | 2016-04-12 | Cree, Inc. | Light fixtures and lighting devices |
US7976187B2 (en) | 2008-03-27 | 2011-07-12 | Cree, Inc. | Uniform intensity LED lighting system |
Also Published As
Publication number | Publication date |
---|---|
EP0684425A2 (de) | 1995-11-29 |
EP0684425A3 (de) | 1996-04-10 |
DE29501661U1 (de) | 1995-08-24 |
DE59508651D1 (de) | 2000-09-28 |
DE4414742A1 (de) | 1995-11-02 |
ATE195798T1 (de) | 2000-09-15 |
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