EP3555521A1 - Lamp - Google Patents
LampInfo
- Publication number
- EP3555521A1 EP3555521A1 EP17829148.0A EP17829148A EP3555521A1 EP 3555521 A1 EP3555521 A1 EP 3555521A1 EP 17829148 A EP17829148 A EP 17829148A EP 3555521 A1 EP3555521 A1 EP 3555521A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- light
- light component
- plane
- head
- 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
- 230000005855 radiation Effects 0.000 claims description 19
- 230000004313 glare Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005286 illumination Methods 0.000 description 14
- 239000011888 foil Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000004 low energy electron diffraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
- F21S6/008—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting with a combination of direct and indirect lighting
-
- 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
- F21V21/14—Adjustable mountings
- F21V21/30—Pivoted housings or frames
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0435—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by remote control means
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person
-
- 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
-
- 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
- F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
-
- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
-
- 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the invention relates to a luminaire, comprising a lamp base, a lamp head and a light column extending between the lamp base and the lamp head, the lamp head having first lighting means, which are arranged in a common plane and which are adapted to couple out a first, indirect light component , and wherein the lamp head further comprises a Entblendungsan Aunt.
- first lighting means which are arranged in a common plane and which are adapted to couple out a first, indirect light component
- the lamp head further comprises a Entblendungsan Aunt.
- the terms "indirect light component” and “direct light component” are to be understood as follows: a direct light component is a light component whose light is directed directly onto a room area to be illuminated, for example a workstation.
- an indirect light component illuminates the room indirectly, that is to say via reflection of the light, for example, on walls or ceilings of a room.
- the light is radiated, for example, in a room upwards in the direction of the ceiling of the room and / or laterally on the walls of the room and from there into the room, in particular to a workplace, reflected.
- a combination of ceiling-mounted luminaires or floor lamps as well as individual table lamps is often used.
- the ceiling-mounted luminaires or floor lamps serve a general illumination of the room, while the table lamps provide sufficient spot illumination of the individual workplace.
- the disadvantage here is often felt the number of different light horizons that arise through the different levels of abstraction of the individual lights.
- Another disadvantage is the lack of flexibility static ceiling lights. Especially in modern office structures, workplaces are often used very flexibly and dynamically.
- workgroups of different sizes can be found at large tables or workbenches, or small, modular table systems can be grouped into different workspaces as required.
- ceiling-mounted or wall-mounted luminaires do not allow adaptation to the changing workplace situation due to their fixed installation.
- conventional desk lamps can be individually positioned, they only serve to illuminate the individual workplace and not the room lighting.
- Floor lamps in turn, which can be designed for indirect room illumination, for example, as ceiling washers are due to their size and the associated weight usually difficult to position repeatedly in different places and must be combined independently with individual desk lamps, which again several different light horizons be perceived.
- the object of the present invention is therefore to provide a lamp, in particular a table lamp, which is suitable for decoupling an indirect light component for workplace illumination, which is at the same time extremely mobile and flexible to handle and in a simple manner and without much effort by a user at a desired Location can be positioned, the light continues to meet the requirements for a sophisticated, graceful design.
- a luminaire having the features of patent claim 1.
- the invention is a luminaire comprising a lamp base, a lamp head and a light column extending between the lamp base and the lamp head, wherein the lamp head has first lighting means, which in a common plane E arranged and which are adapted to couple out a first, indirect light component, and wherein the lamp head further comprises a Entblendungsan Aunt, which is arranged parallel to the plane E and a light-guiding film and shielding elements, wherein the shielding elements are arranged such that a Beam angle of the indirect light component after passing through the Entblendungsanowski is limited to 30 ° with respect to a vertical V to the plane E, and wherein the Entblendungsan angel in the direction of the vertical V has a maximum height of 2.0 cm.
- the luminaire according to the invention is characterized by a special, extremely flat Entblendungsan Aunt through which passes the light emitted by the first light means and by the beam angle of the indirect light component is limited to 30 ° with respect to a vertical to the plane E. If the plane E is aligned parallel to the ceiling of a room, the indirect light component is emitted upward towards the ceiling and the beam angle is limited to 30 ° with respect to the vertical in the room. Such a narrow beam angle prevents glare from standing persons, even when the luminaire according to the invention, for example as a table lamp, decouples the indirect light component below the level of the eye of a standing person.
- the Entblendungsan extract comprises a light-guiding film and shielding elements.
- a light-directing film is, for example, a microstructured film which filters the transmitted light, wherein light rays pass through the film within an angle predetermined by the concrete film structure, while light rays outside this angular range are reflected. These reflected light rays are also reflected by a housing of the luminaire head and thus meet again on the film. In this way, an efficient influencing of the radiation angle is possible. After passing through the light-guiding film, however, in addition to the light component radiated into a desired angular range, further light portions radiated at very shallow angles of approximately 70 ° with respect to the vertical V remain.
- the anti-dazzle arrangement has shielding elements which are subsequently arranged in the direction of the light exit of the film.
- the shielding elements are designed and arranged so that they allow the light component radiated in the desired angular range to pass unhindered while mechanically shielding the light components emitted at shallow angles.
- the shielding elements can be designed, for example, as a grid arrangement arranged on the film of interconnected webs with a triangular cross-section. Depending on the application, other cross-sectional shapes of the webs come into question, for example, an ellipsoidal or parabolic cross-sectional shape.
- the shielding elements can for example be made of a plastic or metal and can stand up as a grid arrangement on the film and optionally be connected to this, for example by gluing.
- the height of the shielding elements may be only a few mm, for example 5 to 7 mm, wherein the concrete height is to be dimensioned so that the light emitted at low angles light components are completely shielded.
- the structure within the lamp head is thus given by several parallel planes.
- the first lighting means are arranged in a first plane E, for example on a common printed circuit board.
- the light-directing foil which covers the first bulbs, is arranged parallel to the plane E in the direction of the light exit.
- the shielding elements are arranged in a further plane parallel to the plane E and to the film and the film below.
- the shielding elements can be arranged directly on the film or at a small distance to this.
- the film is thus located between the first lighting means and the shielding elements. Light emitted from the first bulbs initially passes through the foil and then passes through the arrangement of the shielding elements. After passing through the Entblendungsanowski the beam angle of the first, indirect light component is limited to 30 ° with respect to a vertical V to the plane E.
- the lamp head can be arranged at a height of between about 1.20 m and 1.70 m above a floor or at a height of between about 0.40 m and 1.00 m above a table top and thus at a height which is in the Generally below the eye level of a standing observer.
- the Entblendungsan angel invention causes an observer despite the high light output of the lamp, which can be designed, for example, to an illumination of a workplace according to the standard DIN EN 12464/1, not dazzled.
- the luminaire can be designed as an upwardly projecting table lamp with dimensions similar to those of a conventional desk lamp.
- the luminaire head may have an approximately cuboidal shape, for example a length between about 20 cm and 40 cm, preferably a length of about 32 cm, and a width between about 20 cm and 30 cm, preferably a width of about 24 cm.
- Such a small lamp is extremely mobile and can be placed in different positions in the room without much effort.
- the Entblendungsan angelsan angels is extremely flat, so that the lamp head of the lamp can also be made very flat and thus the requirements of today many times desired reduced design. He differs fundamentally from conventional lighting heads, as they are known, for example, ceiling fans, in which a shield is often bowl-shaped and thus much more voluminous designed to achieve the same light output a corresponding Entblendungsrial.
- Known, flat-trained floor washlights have only insufficient defibrillation mechanisms and can decouple the light appropriately only at head level.
- the luminaire according to the invention thus makes possible a powerful, glare-free decoupling of a strong, indirect light component below the level of the eye of a standing observer, wherein the first illuminant used can be suitable for producing an illuminance of approximately 300 lux at a workstation.
- the first lighting means may, for example, be LEDs which are arranged on a common flat printed circuit board defining the plane E.
- the luminaire according to the invention can be used not only as an office luminaire but also as a luminaire, for example, in a living, sleeping or any other room, especially in a home office.
- An embodiment of the invention provides that the emission angle of the indirect light component is limited to 22 ° with respect to a vertical V to the plane E after passing through the Entblendungsan instruct. It can be provided that the emission angle of the indirect light component after passage through the anti-dazzle arrangement is limited to even smaller angles, for example 20 °, with respect to the vertical V. Furthermore, it can be provided that the Entblendungsanowski extract in the direction of the vertical V has a maximum height of 0.8 cm or a maximum height of only 0.6 cm. As a result, an even flatter construction of the lamp head is possible, which may be formed in particular cuboid.
- each first lighting means is arranged in a mixing chamber.
- a mixing chamber is understood to mean an arrangement of a highly reflective material, for example a highly reflective plastic, which laterally surrounds one or more light sources.
- radiation emitted by the first luminous means which does not strike the light-directing foil in the angular range predetermined by the film structure, is reflected by the light-directing foil and then strikes the highly reflective material of the mixing chamber.
- the radiation is also reflected one or more times and finally hits again at another angle on the light-guiding film, which, if the radiation is now in the intended angular range, can now happen.
- the radiation continues to be reflected between the light-guiding film and the mixing chamber until it finally hits the film in the intended angular range and can pass through it.
- the provision of a mixing chamber thus results in that hardly any radiation escapes and is lost due to reflection effects on the sides, which is accompanied by an increase in the efficiency of the luminaire.
- the lamp head of the lamp for coupling a second, direct light component second illuminant may be provided that the luminaire according to the invention not only has first luminous means for coupling out a first, indirect light component for room illumination, but also second luminous means, by means of which a second, direct light component can be coupled out.
- the direct proportion of light generally serves to intensify the illumination of an individual workplace.
- the first and second bulbs can be designed so that at the workplace a total of Illuminance of about 500 lux is achieved. This is composed of the caused by the indirect light level illuminance of about 300 lux in the room and additionally caused by the direct amount of light illuminance at the workplace itself.
- the lamp according to the invention takes on both the task of room lighting and the workplace illumination and united so that in a luminaire the properties of conventional, ceiling-mounted luminaires or floor lamps as well as classic desk lamps. In their handling, the lamp is comparable to a classic desk lamp and thus repeatedly positioned differently without much effort.
- Both the indirect light component and the direct light component are coupled out of the luminaire head, so that practically only one light horizon is perceived.
- a light horizon is understood to be that plane from which a light component is coupled out. This distinguishes the luminaire according to the invention from a system of ceiling-mounted luminaires or floor lamps and classic desk luminaires in which a plurality of outcoupling levels are present to achieve adequate room and workstation illumination and correspondingly a plurality of, but at least two, usually clearly spaced-apart, light horizons are perceived.
- An embodiment of the invention provides that the second lighting means are arranged in a lamp holder, which is received in a receptacle formed on the lamp head, wherein the lamp holder is pivotable within the receptacle about two mutually perpendicular axes. In this way it is possible for a user to move the direct light component into a desired position and thus to achieve optimum illumination of the workstation.
- the second lighting means are arranged in a common plane D, wherein the plane D is parallel to the plane E of the first lighting means.
- the direct and the indirect light component are thus coupled out of two mutually parallel, closely spaced planes.
- the decoupled by the second light source direct light component is emitted asymmetrically, with a maximum of the radiation in an angular range between 25 ° and 45 °, preferably in an angular range between 30 ° and 40 °, with respect to a vertical the level D is located.
- the direct light component in this case is emitted as a wide-beam but asymmetrical distribution.
- the second lighting means may be arranged in a light fixture which is rotatable about an axis perpendicular to the planes E and D extending axis. In this way, the maximum of the asymmetric radiation by simply turning the lamp holder to different locations, such as a desk, be directed without the lamp would have to be moved as a whole and without the lamp holder would have to be swung out of the plane D.
- the light fixture may for example be formed as a flat disc, which is arranged on an underside of the lamp head.
- the direct and the indirect light component can be controlled independently of one another.
- only the indirect or only the direct light component can be coupled out, if the specific conditions make this necessary and the lamp is to be used, for example, only as a room lamp or only as a workstation lamp.
- both light components can be dimmable independently of each other and / or different light colors can be realized.
- the color temperature can be continuously adjustable, for example, between a warm white color temperature in the range of about 3000 K and a cold white color temperature in the range of about 6000 K. In this way, in particular an adaptation to daily and seasonal changes of natural light is possible. Such an adjustment can be made by the user himself, but it can also be done automatically with the help of appropriate sensors.
- sensors may be provided which detect the current natural lighting conditions and, depending on the detected values, a corresponding signal to the lighting control output, which then adjusts the proportion of light to be coupled accordingly.
- a luminaire designed in this way adapts optimally to the biorhythm of a user predetermined by the natural light conditions.
- the control of the direct light component can be made by the user wirelessly, for example via a smartphone, a tablet computer or another suitable device for mobile communication using appropriate software individually.
- the luminaire controller may have a radio interface, for example a Bluetooth interface.
- the control can alternatively or additionally also take place via a suitable operating unit, for example a touch panel, on the lamp itself.
- a suitable operating unit for example a touch panel, on the lamp itself.
- Such an operating unit can be integrated, for example, in the lamp base.
- the lamp may have a user recognition, by means of which the direct light component is automatically adjustable depending on the user.
- the direct light component is automatically adjustable depending on the user.
- different light colors, light temperatures and / or dimming levels for the direct light component can be stored for each user, which are set automatically when the respective user is recognized by the user recognition.
- data can also be deposited as a function of the season and time of day, so that a direct light proportion adapted to the daily and seasonal changes in the natural light can be set automatically. In this way the lamp becomes a personalized lamp.
- the indirect light component can likewise be adjustable by the individual user. According to one proposal of the invention, however, it is provided that the indirect light component is centrally controlled via a sensor system. This is based on the idea that the spatial illumination caused by the indirect light component should not be influenced individually by the individual user, but independently of the individually adjustable workplace illumination within a given spatial area and Time interval should remain unchanged.
- the central control of the indirect light component can be done for example via the building services.
- a daytime and season-dependent adaptation of the color temperature to the natural light can take place, as has already been described above for the direct proportion of light. Also a dimming and / or adjustment of the light color is possible.
- the lamp may be formed when the indirect light component is controlled by means of presence and / or daylight sensors, such that the indirect light component is only coupled out when people are actually in the room to be illuminated and the lamp is automatically switched off when these people leave the room.
- the illuminance of the indirect light component can be regulated up or down.
- Such controllable indirect light can be used to meet environmental building standards, such as the LEED standard or the GreenBuilding program.
- the lamp is designed as a table lamp with a total height of about 60 to 70 cm. Such a lamp is extremely mobile and easy to handle.
- the lamp is designed to be height adjustable.
- a height adjustability is understood that the height of the lamp head is adjustable above a floor or above a table top.
- the height adjustment can typically be in a range of about 10 to 20 cm, by which the lamp head can be adjusted in height, so that different body sizes can be taken into account.
- the height adjustment is about 15 cm.
- the Height adjustment can be realized for example via a formed on the light column telescopic mechanism.
- a further embodiment of the invention provides that the lamp head is pivotally mounted on the light column. As a result, different setting angle of the lamp head and thus different radiation directions of the light can be realized.
- FIG. 1 an embodiment of the lamp according to the invention in a perspective view obliquely from above; the lamp of Figure 1 in a further perspective view obliquely from below; a section through the lamp head of the lamp of Figures 1 and 2 with an exemplary radiation characteristic of a lamp with remote shielding elements; the representation of Figure 3, but with an exemplary radiation characteristic of a lighting means with shielding elements used; the representation of Figure 4, wherein the radiation characteristics are shown for all bulbs;
- Figure 6 is a section through a lamp head in an alternative
- Figure 1 shows a whole with 1 designated light, comprising a lamp base 2, a lamp head 3 and extending between the lamp base 2 and the lamp head 3 luminous column 4.
- the lamp 1 is designed as a table lamp and can with her lamp stand 2 on a table For example, be positioned on a desk.
- the lamp head 3 is cuboidal and comprises an upper side 11, a lower side 12 lying parallel to the upper side 11, which faces the lamp base 2, and a peripheral edge 13 arranged between the upper side 11 and the lower side 12.
- the distance X between the upper side 11 and the bottom 12 is 1, 4 cm.
- the entire lamp 1 has a height of about 66 cm.
- the top 11 of the lamp head 3 is formed of a translucent material, for example of glass or a suitable translucent plastic.
- the upper side 11 is not part of the anti-glare arrangement explained below.
- first lighting means 5 are arranged in a plane E parallel to the upper side 11 or lower side 12, which can be seen from the sectional views of FIGS. 3 to 5.
- the first lighting means 5 are light-emitting diodes (LEDs), which are arranged on a common printed circuit board. In the lamp head 3 LEDs are arranged in parallel rows. The light of the LED's is emitted as an indirect light portion 6 up through the translucent formed top 11 of the lamp head 3 therethrough.
- the LEDs are selected so that over the indirect light portion 6, a mean illuminance of 300 lux at a workplace, for example on a desk, can be achieved.
- the lamp 1 is suitable to illuminate a workplace, for example, at a desk, in accordance with the standard DIN EN 12464/1.
- a deblading arrangement 7 is arranged in the intermediate space between the upper side 11 and the lower side 12 of the lamp head 3, cf. Figures 4 and 5.
- the anti-dazzle arrangement 7 is arranged parallel to the plane E or the upper side 11 and the lower side 12 of the lamp head 3 and comprises a light-guiding film 8 and shielding elements 9.
- the anti-dazzle arrangement (7) has a height (H) of 0.6 cm.
- An arrangement of the anti-dazzle arrangement 7 parallel to the plane E is to be understood as meaning that the anti-dazzle arrangement 7 is aligned as a whole parallel to the plane E, even if individual components within the anti-dazzle arrangement 7, such as the individual shielding elements 9, have a certain non-zero angle enclose with the E plane.
- the light-directing film 8 is arranged between the first lighting means 5 and the shielding elements 9 at a distance of only about 1 mm from the first lighting means 5.
- the light-directing film 8 has a microstructure which filters the light emitted by the first lighting means 5.
- the microstructure is designed in such a way that light beams emanating from the first luminous means 5 only pass through the film 8 within a defined angular range, while light beams are reflected outside this angular range.
- the film 8 may be, for example, a light-guiding film from the Focus line developed by Polyscale GmbH.
- FIG. 3 shows the effect of the light-directing film 8 on the emission characteristic of a first luminous means 5.
- the shielding elements 9 have been deliberately omitted in the illustration of FIG.
- the light of a first luminous means 5 is radiated substantially in two angular ranges: The essential portion is emitted as an indirect light component 6 in an angular range ⁇ between 0 ° and about 20 ° with respect to the vertical V, another small proportion of light 14 is radiated at an angle ⁇ of about 70 ° with respect to the vertical V.
- the lamp 1 When using the lamp 1 as a table lamp with a lamp head as shown in Figure 3, ie without shielding elements, a standing observer would be dazzled by the light portion 14, since the lamp head 3 at a total height of the lamp 1 of about 66 cm and a middle table height of 72 cm at a height of about 138 cm above the floor and thus generally below the eye level of a standing observer is positioned.
- the luminaire 1 according to the invention as shown in Figure 4 in addition to the light-guiding film 8 shielding elements 9 made of metal or plastic. It can be seen from FIG.
- the shielding elements 9 are positioned in parallel rows and offset from the rows of the first luminous means 5, such that the light portions 14 emerging from the first luminous means 5 at shallow angles are shielded by the shielding elements 9 and not at flat angles ⁇ from the luminaire head 3 escape.
- the dimensions of the shielding elements 9, in particular their height, are aligned with the exact emission direction of the light components 14.
- the shielding elements 9 are designed and arranged in such a way that they do not affect in any way the indirect light component 6 emitted within the angular range ⁇ .
- the shielding elements 9 are formed as webs with triangular cross-section, wherein the height of the individual webs is about 5 mm.
- the angle a, the two flanks include a bridge with each other, is 62 °.
- the luminaire 1 has, in addition to the first luminous means 5, second luminous means 16 which are arranged in a luminaire mount 17.
- the light fixture 17 is received in a formed on the lamp head 3 in the region of its bottom 12 receptacle 18 and is pivotable about two axes relative to the receptacle 18.
- the second lighting means 16 couple a second, not shown, light portion, which is emitted as a direct light component down, for example, in the direction of a work surface. Due to the pivotability of the lamp holder 17, a user can set the second, direct light component according to the respective needs.
- FIG. 6 shows an alternative embodiment of the lamp head 3, wherein like reference numerals correspond to the same components.
- the shielding elements 9 are not visible.
- the first lighting means 5 are arranged under the light-guiding film 8.
- each first lamp 5 is arranged in a mixing chamber 20, wherein the mixing chambers 20 are formed from an array of plastic webs 21 made of a highly reflective plastic material.
- the mixing chambers 20 have the function of light rays which, starting from the first lighting means 5, strike the light-directing film 8 and are not in the desired angular range for the transmission and are therefore reflected by the film 8 again to reflect in the direction of the film 8 , Under certain circumstances, this process is repeated several times until the radiation finally strikes the light-directing film 8 in the desired angular range for the transmission and can pass through it.
- FIG. 6 shows second luminous means 16 for emitting a direct light component.
- the second lighting means 16 are arranged in a common plane D which lies parallel to the plane E of the first lighting means 5.
- a direct light component can be radiated in a direction which is essentially directed downward in the illustration of FIG. 6.
- the lighting means 16 and an optical system 22 covering them are designed in such a way that, although the direct light component is not shown here as a wide-beam distribution, it is asymmetrical is radiated, wherein a maximum of the radiation in an angular range between 30 ° and 40 ° with respect to an axis F is emitted.
- This angular range, in which the maximum of the radiation is located, is indicated schematically in FIG. 6, starting from a point on the optical system 22, as a hatched area G.
- the axis F is perpendicular to the planes E and D.
- the lamps 16 are arranged in a lamp holder 19 which is formed as a flat, rotatable disc on the underside 12 of the lamp head.
- the disc-shaped lamp holder 19 is rotatable about the axis F, wherein a user can act on an outer ring 23 of the lamp holder 19 and the lamp holder 19 can rotate relative to the lamp head 3.
- the maximum of the radiation of the direct light component can thereby be directed to a different location without the luminaire having to be moved or the second luminous means 16 having to be swung out of the plane D lying parallel to the plane E.
- FIG. 6 shows an embodiment of the luminaire according to the invention with mixing chambers 20 and second luminous means 16 arranged in a light fixture 19 designed as a rotatable disk, it will be understood that in alternative embodiments of the invention these two features may be independent of each other be realized, for example in combination with individual features of the embodiment shown in Figures 1 to 5.
- the first light source 5 and the second light source 16 and thus the direct light component and the indirect light component 6 are independently controllable, ie the first and second lamps 5, 16 can be switched on and off independently, but they can also be dimmed independently and / or be adjusted in their light color and / or color temperature.
- the second lighting means 16 and thus the direct light component can be controlled wirelessly by the user, for example via a smartphone or another suitable device for mobile communication.
- the first light-emitting means 5 are controlled via a building technology, with this purpose Signals from presence and / or daylight sensors are fed into the controller.
- the lamp 1 is thus suitable to produce both a powerful, indirect room lighting as well as a direct workplace illumination as a small, table-mounted lamp, with a glare of standing observers is effectively avoided by the special Entblendungsan Aunt.
- the light 1 is also characterized above all by the fact that it is very flexible as a small, mobile lamp and can be repositioned again and again without much effort. Furthermore, it reduces the number of light horizons compared to conventional lighting systems of ceiling or floor lamps in combination with desk lamps, since both the indirect light component 6 and the direct light component from a single set by the lamp head 3 level radiated out.
- the extremely low height H of the Entblendungsan angel 7 allows a correspondingly flat construction of the lamp head 3, whereby the lamp also meets the demand for a reduced, modern design.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016124257.8A DE102016124257B4 (en) | 2016-12-13 | 2016-12-13 | lamp |
PCT/EP2017/082063 WO2018108745A1 (en) | 2016-12-13 | 2017-12-08 | Lamp |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3555521A1 true EP3555521A1 (en) | 2019-10-23 |
EP3555521B1 EP3555521B1 (en) | 2020-11-04 |
Family
ID=60972180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17829148.0A Active EP3555521B1 (en) | 2016-12-13 | 2017-12-08 | Lamp |
Country Status (4)
Country | Link |
---|---|
US (1) | US10704749B2 (en) |
EP (1) | EP3555521B1 (en) |
DE (1) | DE102016124257B4 (en) |
WO (1) | WO2018108745A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018104746A1 (en) * | 2018-03-01 | 2019-09-05 | Trilux Gmbh & Co. Kg | Floor or table lamp |
USD943133S1 (en) * | 2019-12-17 | 2022-02-08 | Hangzhou Junction Imp. & Exp. Co., Ltd. | Plant light |
USD995828S1 (en) * | 2020-12-01 | 2023-08-15 | Logan J. Bailey | Video light |
USD958440S1 (en) * | 2021-08-10 | 2022-07-19 | Shenzhen Bright Star Technology Co., Ltd | Plant lamp |
USD1001343S1 (en) * | 2023-06-05 | 2023-10-10 | Dongguan Endesen Lighting Co., Ltd | Table lamp |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3389246A (en) | 1966-01-17 | 1968-06-18 | Sylvan R. Shemitz | Illuminated wall partition divider |
DE102009017163B3 (en) | 2009-04-09 | 2010-10-07 | P.H. Wert-Design E.K. | Light has lighting fixture with two light exit openings for opposite light emission and with two parallel printed circuit boards assigned to light exit openings and each fitted with light emitting diodes as light sources |
DE202010003751U1 (en) | 2010-03-17 | 2011-07-26 | Zumtobel Lighting Gmbh | Luminaire for generating a variable indirect lighting |
EP2789213B1 (en) * | 2011-12-08 | 2018-10-24 | Philips Lighting Holding B.V. | A luminaire |
DE102014000558B3 (en) | 2014-01-15 | 2015-07-16 | Trs-Star Gmbh | Floor lamp with bifunctional head |
US10072804B2 (en) * | 2014-09-19 | 2018-09-11 | Philips Lighting Holding B.V. | Table lamp and a method of adjusting the direction of the light output from a table lamp |
-
2016
- 2016-12-13 DE DE102016124257.8A patent/DE102016124257B4/en not_active Expired - Fee Related
-
2017
- 2017-12-08 US US16/465,826 patent/US10704749B2/en active Active
- 2017-12-08 WO PCT/EP2017/082063 patent/WO2018108745A1/en unknown
- 2017-12-08 EP EP17829148.0A patent/EP3555521B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20190301690A1 (en) | 2019-10-03 |
EP3555521B1 (en) | 2020-11-04 |
WO2018108745A1 (en) | 2018-06-21 |
US10704749B2 (en) | 2020-07-07 |
DE102016124257A1 (en) | 2018-06-14 |
DE102016124257B4 (en) | 2018-07-19 |
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