Lamp Comprising at Least One OLED Lighting Means

• US 20160369981A1
• Filed: 11/17/2014
• Published: 12/22/2016
• Est. Priority Date: 11/18/2013
• Status: Active Grant

• Current Assignee: Emdedesign Gmbh
• Original Assignee: Emdedesign Gmbh
• Inventors: Emde, Thomas, Petersen, Christoph, Meier, Jonathan
• Granted Patent: US 10,054,295 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21S 6/003 for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
• CPC Class Codes: F21S 8/061 with a non-rigid pendant, i.e. a cable, wire or chain
• CPC Class Codes: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21Y 2105/00 Planar light sources
• CPC Class Codes: F21Y 2113/00 Combination of light sources
• CPC Class Codes: F21Y 2115/15 Organic light-emitting diodes [OLED]
• CPC Class Codes: H10K 50/80 Constructional details
• CPC Class Codes: H10K 50/805 Electrodes
• CPC Class Codes: H10K 59/18 Tiled displays
• CPC Class Codes: H10K 59/82 Interconnections, e.g. terminals H10K59/131, H10K59/179 take precedence
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The present invention relates to a lamp comprising at least one OLED lighting means lying flat on an at least partially light-transmissive carrier plate (13) and formed as an OLED panel (14, 15, 16), in which at least two contact shoes respectively assigned to an OLED panel are attached on the rear side of the carrier plate that is facing away from the light-emitting side and respectively comprise means for contacting one pole each of the OLED panel. The solution according to the invention provides a lamp that ensures effective coupling out of the light emitted by the OLEDs and uniform distribution of the light over the light-radiating area of the carrier plate and at the same time is of a comparatively simple construction and an attractive design. The lamp according to the invention may for example be a pendant lamp, a suspended lamp, a surface-mounted ceiling lamp, a recessed ceiling lamp, a standard lamp or a table lamp.

Claims

1. A lamp comprising at least one OLED lighting means lying flat on an at least partially light-transmissive carrier plate (13) and formed as an OLED panel (14, 15, 16), wherein at least two contact shoes (20, 21) respectively assigned to an OLED panel (14, 15, 16) are attached on the rear side of the carrier plate (13) that is facing away from the light-emitting side, which respectively comprise means for making contact with one pole respectively of the OLED panel, wherein

at least one contact shoe (20, 21) has an attachment device, by means of which the OLED panel (14, 15, 16) is attached onto the carrier plate (13);

the attachment device is preferably a clamping device, by means of which the OLED panel is attached in a clamped manner,

characterised in that two or a plurality of OLED panels (14, 15, 16) arranged, for example, in a row are arranged on the rear side of the at least partially light-transmissive carrier plate (13), facing away from the light-emitting side, and at least one contact flange (17) is attached on or to the carrier plate (13), which is in conducting contact with a conducting track (18, 19) fitted on the carrier plate, which leads from the contact flange to one or a plurality of contact shoes (20, 21) respectively assigned to the OLED panels (14, 15, 16).

2. The lamp according to claim 1, characterised in that at least one contact shoe (20, 21) has a plate-form element, in particular a printed circuit board (20a), as a means for making contact with a pole of the OLED panel (14, 15, 16).

3. The lamp according to claim 1, characterised in that at least one contact shoe (20, 21) is attached onto a surface of the carrier plate (13), made of glass or a transparent plastic, facing towards the OLED panel (14, 15, 16), by means of adhesive bonding onto the latter.

4. The lamp according to claim 1, characterised in that conducting tracks (18, 19) are applied onto the carrier plate (13), and at least one contact shoe (20, 21) is soldered or brazed onto a conducting track, making a conducting connection.

5. The lamp according to claim 1, characterised in that at least one contact flange (17), which is in conducting contact with at least one conducting track (18, 19) applied onto the carrier plate (13), is arranged in the region of the suspension fitting (11, 12) or attachment of the lamp (10).

6. The lamp according to claim 1, characterised in that the latter is a pendant lamp (10), and at least one contact flange (17) is arranged in the region of the suspension fitting (11, 12) of the lamp, wherein an electrical supply cable of the lamp feeds through the suspension fitting of the lamp to the contact flange, and at its lower end is in electrically conducting connection with the latter.

7. The lamp according to claim 1, characterised in that at least the surface of the light-transmissive carrier plate (13), facing towards the OLED panel (14, 15, 16), and to be connected detachably with the latter, consists of glass or a transparent plastic, in particular, acrylic glass and, on its light-emitting side, the carrier plate (13) is matted at least in sub-regions, in particular by means of etching, sandblasting, grinding, lasering, milling, or similar, or, on its rear side, facing away from the light-emitting side, the carrier plate (13) is coated or printed, at least in sub-regions.

10. The lamp according to claim 1, characterised in that a plate-form covering (22a) is provided on the side of the carrier plate (13) facing away from the light-emitting side, which covering covers the OLED panels (14, 15, 16).

11. The lamp according to claim 1, characterised in that the latter is a pendant lamp (10), a suspended lamp, a surface-mounted ceiling lamp, a recessed ceiling lamp, a surface-mounted wall lamp, a recessed wall lamp, a standard lamp or a table lamp (30) or is a mobile lamp, a mirror lamp, a furniture lamp, or an illuminable furniture element, an exterior lamp, a recessed floor lamp, a surface mounted floor lamp, a street lamp, an orientation lamp, a lamp for emergency lighting, or an information lamp.

12. The lamp according to claim 1, and in each case contact is made with a pole of the said OLED panels, arranged in a row, by a respective common conducting track (18, 19) and/or with a plurality of OLED panels, connected in a parallel circuit, or in a series circuit, by means of contact shoes (20, 21) and conducting tracks (18, 19).

15. The lamp according to claim 7, characterised in that on the rear side, facing away from the light-emitting side, the carrier plate (13) is coated, pasted, matted or printed in those particular sub-regions in which are located attachment elements, in particular for the suspension fitting or mounting of the lamp, and/or contact elements for the OLED panel, and/or conducting tracks, wherein on the rear side, facing away from the light-emitting side, the carrier plate (13) is two-dimensionally printed, pasted, matted, or coated with at least one layer in the form of a frame, wherein the said printing, pasting, matting, or coating omits the light-emitting surfaces, onto which the one or more OLED panels (14, 15, 16) are fitted.

17. The lamp according to claim 15, characterised in that on its rear side, facing away from the light-emitting side, the carrier plate (13) has at least one printing (50, 52, 54), pasting, or coating with an electrically insulating material, in particular with ceramic pigments and/or, on its rear side, facing away from the light-emitting side, the carrier plate (13) has at least one printing (50, 52), or coating with light, in particular, for example, white pigments, or dyes

19. The lamp according to claim 15, characterised in that on the rear side, facing away from the light-emitting side, the carrier plate (13) has at least two layers of printing (50, 52, 54), pasting, matting, or coating, applied in successive steps of the process, wherein the printing, pasting, matting or coating of a plurality of layers located one above another is preferably approximately congruent in each case, and in each case omits the light-emitting surfaces of the OLED panel wherein the rear side of the carrier plate, facing away from the light-emitting side, has a double, triple or multiple printing (50, 52, 54), pasting, or coating of approximately congruent surfaces, wherein at least one printing (50, 52), pasting or coating is provided with a light, in particular a white pigment or dye, and at least one printing (54), pasting or coating is provided with a dark, in particular a grey or black pigment or dye.

21. The lamp according to claim 15, characterised in that the latter can be a lighting shelf, a lighting panel, an electrical appliance, a household appliance, an item of urban furniture, a facade element, a wall element, a ceiling element, an exterior lamp of a motor vehicle, or an installation fitting of a motor vehicle, rail vehicle, ship, or aircraft, or an illuminable part of such a subject item.

22. The lamp according to claim 1, characterised in that contact is made with at least two OLED panels, connected in a parallel circuit, by means of conducting tracks (18, 19), wherein for each OLED panel a constant current source, or a current limiter is provided, which is assigned to the latter and/or a monitoring electronics circuit is provided for each OLED panel, wherein the monitoring electronics circuit is in each case arranged in the conducting path between the constant current source, or current limiter, and the contacts of the OLED panel.

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25. A lamp comprising at least one OLED lighting means lying flat on an at least partially light-transmissive carrier plate (13) and formed as an OLED panel (14, 15, 16), wherein at least two contact shoes (63, 64) respectively assigned to an OLED panel (14, 15, 16) are attached onto the rear side of the carrier plate (13) that is facing away from the light-emitting side, which contact shoes (63, 64) respectively comprise means for making contact with one pole respectively of the OLED panel, wherein

at least one contact shoe (63, 64) has an attachment device, by means of which the OLED panel (14, 15, 16) is attached onto the carrier plate (13);

the attachment device is preferably a clamping device, by means of which the OLED panel is attached in a clamped manner,

characterised in that two or a plurality of OLED panels (14, 15, 16) arranged, for example, in a row are arranged on the rear side of the at least partially light-transmissive carrier plate (13), facing away from the light-emitting side, and at least one contact flange (17) is attached on or to the carrier plate (13), which is in conducting contact with a contact shoe (63, 64) arranged on the carrier plate, which contact shoe (63, 64) makes contact with at least one OLED panel (14, 15, 16).

26. The lamp according to claim 25, characterised in that at least one contact shoe (63, 64) is provided, which respectively makes contact with the contact regions (151) of two adjacent OLED panels (14, 15;

15, 16), wherein in one OLED panel contact is made with the plus pole, and in the other OLED panel with the minus pole.

27. The lamp according to claim 25, characterised in that at least one contact shoe is designed in two parts, and comprises a clamping element (63) that can be fixed onto the carrier plate (13), and at least one contact element (64) that can be detachably connected with the clamping element, which contact element makes contact with the contact region (151) of the one or more OLED panels (14, 15, 16).

28. The lamp according to claim 25, characterised in that the OLED panels (14, 15, 16) have contact regions (151) extending along an edge, for example in the form of a strip or tongue, and at least one contact element in the assembled state (64) presses from above onto the said contact region (151), and thereby makes contact with the OLED panel and at the same time clamps the latter securely onto the carrier plate (13).