Lamp

Abstract

The invention relates to a lamp with at least one lamp head and a base unit that each have a modular design to the effect that the lamp head can embody different geometric, optical and electronic configurations and the base unit can embody different geometric configurations. The lamp head has a retaining element that can be fastened via magnetic forces so as to be adjustable in terms of position to a holder of the base unit.

Claims

1. A lamp comprising at least one lamp head and a base unit, each having a modular structure to the effect that the lamp head can embody different geometrical, optical and electronic configurations and the base unit can embody different geometric configurations, wherein the lamp head has a retaining element that is fastened to a holder of the base unit via magnetic forces so as to be adjustable in terms of position to the holder, wherein the base unit has a modular arrangement of connecting pieces and branching elements, wherein the connecting pieces and the branching elements comprise hollow bodies into which electrical lines are routed, wherein central and external light-emitting diodes are provided as light sources, said central light-emitting diodes being arranged directly above a lens such that emitted light rays are bundled through the lens and outwards of the lamp in a directional fashion with characteristics of a spotlight, wherein said external light-emitting diodes are arranged in a ring such that emitted light rays from said external light-emitting diodes are directed outwards of the lamp at least partially in an indirect fashion after reflection from the lens and directly through a diffuser.

2. The lamp according to claim 1, wherein the holder has a magnet with a contact surface having the shape of a spherical shell into which the retaining element of the lamp head is inserted, wherein said retaining element has a spherical shape and is made of a metallic material.

3. The lamp according to claim 1, wherein the lamp head has a ring, wherein a cover is put on the top of said ring.

4. The lamp according to claim 3, wherein the light sources are provided on the inside of the ring, wherein the light of said light sources is radiated through a diffusor at the bottom of the ring.

5. The lamp according to claim 3, wherein the light sources are provided on the bottom of the cover.

6. The lamp according to claim 5, wherein at least one central light-emitting diode that radiates light through the lens is provided at the bottom of the cover.

7. The lamp according to claim 6, wherein said external light-emitting diodes are provided at the bottom of the cover that radiate light directly or through a diffusor after reflection at the lens.

8. The lamp according to claim 7, wherein the diffusor is arranged on the bottom of the ring and wherein the lens is mounted in a central hole of the diffusor.

9. The lamp according to claim 4, wherein the light sources are comprised of organic light-emitting diodes.

10. The lamp according to claim 9, wherein the light sources and the accompanying electronic components for their control are arranged on a common circuit board.

11. The lamp according to claim 10, wherein the electronic components form a dimmer capable of variable dimming.

12. The lamp according to claim 3, wherein an electrical connector is provided on the ring.

13. The lamp according to claim 1, wherein the connecting pieces each run along a straight line.

14. The lamp according to claim 1, wherein the branching elements each have a quantity of branch segments.

15. The lamp according to claim 14, wherein different branching elements are made up of different quantities and different spatial orientations of branch segments.

16. A lamp comprising at least one lamp head and a base unit, each having a modular structure to the effect that the lamp head can embody different geometrical, optical and electronic configurations and the base unit can embody different geometric configurations, wherein the lamp head has a retaining element that is fastened to a holder of the base unit via magnetic forces so as to be adjustable in terms of position to the holder, wherein the base unit has a modular arrangement of connecting pieces and branching elements, wherein the connecting pieces and the branching elements comprise hollow bodies into which electrical lines are routed, wherein central and external light-emitting diodes are provided as light sources, said central light-emitting diodes being arranged directly above a lens such that emitted light rays are bundled through the lens and outwards of the lamp in a directional fashion with characteristics of a spotlight, wherein said external light-emitting diodes are arranged in a ring such that emitted light rays from said external light-emitting diodes are directed outwards of the lamp at least partially in an indirect fashion after reflection from the lens and directly through a diffuser, wherein the light-emitting diodes are organic light-emitting diodes.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1: First example of the lamp as per the invention.

(2) FIG. 2A: Lamp head for the lamp as per the invention in a view from the bottom.

(3) FIG. 2B: Lamp head for the lamp as per the invention in a sectional view.

(4) FIG. 2C: Individual diagram of the components of the lamp head.

(5) FIG. 3: Variant of the lamp head in accordance with FIGS. 2A to 2C.

(6) FIG. 4: Holder for the lamp as per the invention.

(7) FIG. 5A: Second example of the lamp as per the invention.

(8) FIG. 5B: Branching element for the lamp in accordance with FIG. 5A.

(9) FIG. 6: Third example of the lamp as per the invention.

(10) FIG. 7A: Fourth example of the lamp as per the invention.

(11) FIG. 7B: Branching element for the lamp in accordance with FIG. 7A.

(12) FIG. 8: Fifth example of the lamp as per the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(13) FIG. 1 shows a first example of the lamp 1 as per the invention. The lamp 1 is designed in the form of a spotlight emitting directional light that is mounted with a ceiling bracket 2 on a ceiling of a room of a building. The lamp 1 is comprised of a lamp head 3; a ball-shaped retaining element 4 is laterally provided on this. The lamp head 3 is adjustably fastened to a base unit of the lamp 1 with this retaining element 4. The base unit is comprised of a connecting piece 5 and a holder 6 mounted at the bottom of the connecting piece 5; the retaining element 4 is mounted on the holder.

(14) The connecting piece 5 is made of a hollow body running in a straight line. A line 7 supplying power to the lamp head 3 is routed in the interior of the hollow body. The line 7 runs to an opening of the branch segment 20 here, so it can be connected to the lamp head 3.

(15) FIGS. 2A and 2B show the lamp head 3 in individual diagrams. The individual components of the lamp head 3 are shown in FIG. 2C.

(16) As evident in FIG. 2C, the lamp head 3 has a circular ring 8. This ring 8 is comprised of a material that is impenetrable to light such as plastic or metal. A cover 9 can be put on top of the ring 8. The cover 9, which is chosen to be slightly convex, is likewise comprised of a material that is impenetrable to light. The optical appearance of the lamp head 3 can be varied by changing the colors and the surface characteristics of the ring 8 and the cover 9. A carrier 9a that is designed to hold light sources can be attached to the bottom of the cover 9.

(17) The light is radiated through the bottom of the lamp head 3. The bottom is terminated with a diffusor 10 and a lens 11; the lens 11 is inserted into a central hole of the diffusor 10.

(18) LEDs (light-emitting diodes) 12a, 12b are arranged as light sources on the bottom of the shielding. Alternatively, OLEDs (organic light-emitting diodes) can also be used.

(19) As evident from FIG. 2a, first LEDs 12a are directly arranged above the lens 11. The light rays radiated from these LEDs 12a are bundled through the lens 11 and consequently radiated in a directional fashion, meaning the radiation characteristics of a spotlight are obtained.

(20) External LEDs 12b that are preferably arranged in a ring are also provided in addition to these central LEDs 12a. The light rays from these LEDs 12b are indirectly emitted, after reflection at the lens 11, or directly emitted, via the diffusor 10, towards the outside and provide for a non-directional radiation component.

(21) The general, the LEDs 12a, 12b are arranged together with their electronic components on circuit boards. The light sources can be dimmed, in particular, with the electronic components.

(22) The lamp head 3 of FIGS. 2A-C can be converted to the effect that the light sources are arranged on the interior wall of the ring 8. Otherwise, the lamp head 3 has the same structure as the lamp head 3 of FIGS. 2A-C. Alternatively, a lens 11 is not provided on the bottom of the lamp head 3, but instead a diffusor 10 that covers the entire bottom. In this case, the lamp head 3 constitutes a floodlight that only radiates non-directional light.

(23) As evident from FIG. 2C, the lamp head 3 has, as a possible electrical connector, a plug 13 and a socket 14, which can optionally be inserted into a cut-out section 15 in the ring 8. In the example of FIGS. 2A and 2B, a plug 13 is provided as an electrical connector; power is supply through it to the optical and electrical components of the lamp head 3.

(24) A metallic, ball-shaped retaining element 4 is provided for the lamp head 3 of FIGS. 2A-C, as is the case with all of the lamp heads 3 of the lamp 1, for the adjustment and lighting of the lamp head 3 on the base unit of the lamp 1. This retaining element 4 has a cylindrical connection piece 4a that can be inserted into a further cut-out section 16 of the ring 8; the retaining element 4 is laterally fastened to the lamp head 3 through that.

(25) FIG. 3 shows a partial representation of a variant of the lamp head 3 of FIGS. 2A-C. The lamp head 3 in accordance with FIG. 3 has a ring 8 once again in which a plug 14 and the ball-shaped retaining element 4 are laterally mounted as electrical connectors. The cover 9, which has a disk shape in this case, is provided on the ring 8 once again

(26) A flat board 8a that supports LEDs 12 as light sources is provided in the interior of the ring 8 in this case instead of the carrier 9a.

(27) The bottom of the lamp head 3 is terminated with a multi-layer structure made up of several plate-shaped elements loosely put on top of one another instead of the diffusor 10. The lower layer 10a and the middle layer 10b are made of a transparent material, in particular acrylic. The top layer 10c is made of an opaque material that is, in particular, a white material with printing on the bottom if applicable.

(28) The retaining element 4 of the lamp head 3 can be adjustably mounted in a holder 6. The holder 6 is shown in an individual diagram in FIG. 4.

(29) The holder 6 has a connection part 17 with a polygonal cross-section at its rear end. The holder 6 can be fastened to a component of the base unit, to the connecting piece 5 in the example of FIG. 1, with this connection part 17.

(30) Furthermore, the holder 6 has a magnet 18; the free front side of the magnet 18 has a contact surface 18a with the shape of a spherical shell. The radius of the contact surface 18a corresponds to the radius of the ball-shaped retaining element 4, so the retaining element 4 is held in a positive-locking way in the contact surface 18 and fixed in place with magnetic forces. The contact surface 18a can be supplied with a diamond coating to increase the frictional forces. Because of the spherical symmetry of the contact surface 18a and the retaining element 4, the retaining element 4 and therefore the overall lamp head 3 can be rotated by nearly 360 in each of three spatial directions and can consequently be fixed in place on the holder 6 in nearly any adjustment position.

(31) FIG. 5A shows a further example of a lamp 1. This lamp 1 is designed as a ceiling lamp once again and is fastened to a ceiling of a room of a building via a ceiling bracket 2.

(32) The base unit of the lamp 1 is comprised in this case of three connecting pieces 5a, 5b running in straight lines and a branching element 19 that is shown in an individual diagram in FIG. 5A. This branching element 19 is designed, like the connecting pieces 5a, 5b, in the form of a hollow body, so electrical lines 7 can be routed in it. The branching element 19 has, as FIG. 5B shows, three identical branch segments 20 offset by 120 in each case; a connecting piece 5 can be fastened to each branch segment 20. In general, different branching elements 19 with different quantities and orientations of branch segments 20 can be provided for the lamp 1.

(33) As shown in FIG. 5A, one end of a first connecting piece 5a is fastened to the ceiling bracket 2 and the other end is connected to a branch segment 20. Two further connecting pieces 5b are fastened to the two further branch segments 20 of the branching element 19; a holder 6 is fastened to their free ends in each case. A lamp head 3 is adjustably attached to this holder 6 in each case; the lamp heads 3 correspond to the embodiment in accordance with FIGS. 2A-C.

(34) FIG. 6 shows another example of the lamp 1 as per the invention. The lamp 1 is designed as a floor lamp in this case. The lamp 1 in accordance with FIG. 6 is comprised of three connecting pieces 5a, 5b, which are connected via a branching element 19 in accordance with FIG. 5B. A first connecting piece 5a is mounted on a stand base 21 that is set up on the floor of a room or a building. A lamp head 3 is mounted in each case to the two other connecting pieces 5b. An electric ballast can be integrated into the stand base 21.

(35) FIG. 7A shows a further example of a lamp 1 designed in the form of a floor lamp. The lamp 1 is comprised of three connecting pieces 5a, 5b that are connected in pairs via branching elements 19a, as shown in FIG. 7B. These branching elements 19a have three branch segments 20a; two branch segments 20a are offset by 180 and therefore arranged along a straight line and a third branch segment 20a is perpendicular to this branch segment 20a, meaning that it is arranged at a 90 offset to it in each case. The linear arrangement of connecting pieces 5a, 5b shown in FIG. 7A is obtained with this branching element 19a; the connecting piece 5a is mounted on a stand base 21. A holder 6 for attachment of a lamp head 3 ends in each case at a branch segment 20a of a branching element 19a. A further lamp head 3 is provided at the upper end of the upper connecting piece 5b.

(36) FIG. 8 shows a further example of a lamp 1. This lamp 1 is designed in the form of a ceiling lamp. The lamp 1 is comprised of a total of seven connecting pieces 5 with different lengths in part as the base unit. The connecting pieces 5 are connected via branching elements 19 in accordance with FIG. 5B to form a reticular network structure running in one plane. A lamp head 3 is located in each case at the free ends of five connecting pieces 5. This overall design can be suspended from a ceiling with steel cables that are not shown; the steel cables can be used to supply electrical power to the lamp heads 3.

LIST OF REFERENCE NUMERALS

(37) (1) Lamp

(38) (2) Ceiling bracket

(39) (3) Lamp head

(40) (4) Retaining element

(41) (4a) Connection piece

(42) (5) Connecting piece

(43) (5a, 5B) Connecting piece

(44) (6) Holder

(45) (7) Line

(46) (8) Ring

(47) (8a) Flat board

(48) (9) Cover

(49) (9a) Carrier

(50) (10) Diffusor

(51) (10a) Lower layer

(52) (10b) Middle layer

(53) (10c) Upper layer

(54) (11) Lens

(55) (12a, 12b) LED

(56) (13) Plug

(57) (14) Socket

(58) (15) Cut-out section

(59) (16) Cut-out section

(60) (17) Connection part

(61) (18) Magnet

(62) (18a) Contact surface

(63) (19) Branching element

(64) (19a) Branching element

(65) (20) Branch segment

(66) (20a) Branch segment

(67) (21) Stand base