EP3951253A1 - Led-glühlampe - Google Patents

Led-glühlampe Download PDF

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Publication number
EP3951253A1
EP3951253A1 EP20189843.4A EP20189843A EP3951253A1 EP 3951253 A1 EP3951253 A1 EP 3951253A1 EP 20189843 A EP20189843 A EP 20189843A EP 3951253 A1 EP3951253 A1 EP 3951253A1
Authority
EP
European Patent Office
Prior art keywords
burner
pin
led bulb
center ring
flat
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.)
Pending
Application number
EP20189843.4A
Other languages
English (en)
French (fr)
Inventor
designation of the inventor has not yet been filed The
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lumileds LLC
Original Assignee
Lumileds LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lumileds LLC filed Critical Lumileds LLC
Priority to EP20189843.4A priority Critical patent/EP3951253A1/de
Priority to US18/015,291 priority patent/US20230265979A1/en
Priority to PCT/US2021/041117 priority patent/WO2022011280A1/en
Priority to EP21837679.6A priority patent/EP4179252A1/de
Priority to CN202180061719.4A priority patent/CN116194716A/zh
Publication of EP3951253A1 publication Critical patent/EP3951253A1/de
Pending legal-status Critical Current

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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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/194—Bayonet attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/196—Wire spring attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings

Definitions

  • the present invention relates to the field of lighting, and particularly to a retrofit LED bulb.
  • Bulbs including halogen bulbs and LED bulbs, are widely used in various lighting scenarios, for example in automotive lighting and in indoor lighting. Due to an omni-directional light emission of halogen, the halogen bulbs can be installed in any direction within the whole lighting module or system, for example within an automotive headlight, and all help to output the same beam pattern.
  • the halogen bulbs are replaced by the LED bulbs, because typically light emitting elements, i.e., LEDs, of the LED bulbs are only emitting light across half of the 3D space, for example merely side-emitting.
  • typically light emitting elements, i.e., LEDs, of the LED bulbs are only emitting light across half of the 3D space, for example merely side-emitting.
  • at least two LEDs are usually required in a conventional LED bulb, located respectively at two opposite sides of the LED bulb's body, helping to get a similar output of light emission as that of the halogen bulbs.
  • stepped rims comprising discrete steps are often required on the center ring of the LED bulb to obtain an excellent omni-directional beam output as that of the halogen bulbs, wherein pins on the burner of the LED bulb are configured to rest into valleys between adjacent steps for the assembly of the LED bulb.
  • pins on the burner of the LED bulb are configured to rest into valleys between adjacent steps for the assembly of the LED bulb.
  • only a limited number of angle positions can be reached if the burner is rotated with respect to the center ring of the LED bulb, rendering it to be extremely inconvenient for an end user to install the LED bulb in an optimal rotational position.
  • the present invention provides a retrofit LED bulb, so as to eliminate or at least alleviate one or more of the above mentioned disadvantages.
  • a retrofit LED bulb for use for example in an automotive vehicle.
  • the LED bulb comprises a burner, an elastic component, and a center ring.
  • the burner comprises a first pin.
  • the center ring comprises a central opening, a first flat rim, and a first notch.
  • the burner is inserted through the central opening on assembly of the LED bulb, and the first flat rim of the center ring extends along a first part of an outer edge of the central opening.
  • the first notch of the center ring is cut-out beyond the central opening at an end of the first flat rim, and allows the first pin of the burner to pass through on insertion of the burner.
  • the elastic component preferably an O-ring or springs made for example by elastic materials, is configured to press the first flat rim of the center ring against the first pin of the burner after assembly of the LED bulb, such that an unintentional rotation between the burner and the center ring is inhibited.
  • the center ring is provided with a flat rim which has a notch at an end thereof.
  • This flat rim replaces the stepped rim of the center ring in a conventional LED bulb.
  • a continuous angle rotation can be achieved between the burner and the center ring, wherein the burner and the center ring are able to be kept at any of continuous angle positions relative to each other.
  • This is easy to operate by an end user as what he desires.
  • a conventional LED bulb with a stepped rim of the center ring comprising for example three valleys between adjacent steps, only a limited number of, especially three, discrete angle positions can be reached for the burner with respect to the center ring.
  • the present invention a great flexibility can be provided for the end user in installing the LED bulb on a specific automotive vehicle according to the practical requirements, because the relative angle position between the burner and the center ring of the LED bulb is no longer restricted only to those limited ones determined by the valleys between adjacent steps of the center ring's stepped rim in the conventional LED bulb.
  • the first pin comprises a first flat surface, which is configured to be in contact with the first flat rim on assembly of the LED bulb.
  • the contact interface between the first pin and the first flat rim is flat, thus being advantageous to the durable use of the pin (thus of the burner) and also of the flat rim (thus of the center ring).
  • a perfect fitting with a higher accuracy or a nearly zero tolerance is much easier to be obtained between the first flat surface of the first pin and the first flat rim, as compared to that between two curved surfaces.
  • the first pin of the burner in the above proposed LED bulb is shaped into a cuboid, which is easy and cost-effective to manufacture.
  • the burner comprises a second pin
  • the center ring comprises a second flat rim and a second notch.
  • the second flat rim extends along a second part of the outer edge of the central opening, while the second notch is cut-out beyond the central opening at an end of the second flat rim and allows the second pin of the burner to pass through on insertion of the burner.
  • the elastic component is further configured to press the second flat rim of the center ring against the second pin of the burner after assembly of the LED bulb, so that the unintentional rotation between the burner and the center ring is further inhibited.
  • the LED bulb As similar to the first pin on the burner and the first flat rim on the center ring, in the LED bulb according to the above mentioned embodiment of the present invention, a second pair of components being pressed against each other, i.e., the second pin and the second flat rim, is introduced, such that the center ring and the burner are pressed against each other strong enough so as to inhibit further the unintentional rotation therebetween.
  • the pressing force can be for example doubled by incorporating the additional, second pin and second flat rim, rendering the LED bulb obtained thereby to be stable in mechanics and also in electrics.
  • the second pin of the burner can be provided with a second flat surface as well, which second flat surface is in contact with the second flat rim of the center ring on assembly of the LED bulb.
  • the second pin is also designed in the shape of a cuboid, for an easy and cost-effective manufacture.
  • the burner comprises a first portion for example in shape of a plate and a second portion for example in shape of a cylinder.
  • the first portion of the burner comprises a first side and a second side opposite to the first side, wherein each of the first side and the second side is provided with at least one LED.
  • the first side is be provided with at least one first LED
  • the second side is provided with at least one second LED.
  • the first pin and the second pin can be located on the second portion of the burner, more preferably right opposite to each other.
  • the second notch of the center ring is configured to allow the second pin of the burner to pass therethrough, and the first notch is in a similar configuration.
  • the two pins i.e., the first pin and the second pin
  • the two notches i.e., the first notch and the second notch
  • both of the first flat rim and the second flat rim extend between the first notch and the second notch on the center ring, but along two different parts of the outer edge of the center opening.
  • the outer edge of the center opening comprises two half parts, both extending between the first notch and the second notch, wherein the first flat rim extends along one half part and the second flat rim extends along the other half part.
  • the burner comprises a third pin
  • the center ring comprises a third flat rim and a third notch.
  • the third flat rim extends along a third part of the outer edge of the central opening, while the third notch is cut-out beyond the central opening at an end of the third flat rim and allows the third pin of the burner to pass through on insertion of the burner.
  • the elastic component is configured further to press the third flat rim of the center ring against the third pin of the burner after assembly of the LED bulb, so that the unintentional rotation between the burner and the center ring is further inhibited.
  • engagement between the burner and the center ring can be enhanced furthermore by introducing a third pair of components being pressed against each other, i.e., the third pin of the burner and the third flat rim of the center ring, which helps to obtain a LED bulb with an even higher stability in mechanics and also electrics.
  • the third pin of the burner can be provided with a third flat surface as well, which third flat surface is in contact with the third flat rim of the center ring on assembly of the LED bulb.
  • the third pin is also designed in the shape of a cuboid, thus being beneficial for easy manufacture too.
  • the first pin, the second pin, and the third pin are uniformly spaced on the second portion of the burner.
  • the third notch of the center ring is configured to allow the third pin of the burner to pass through, and the first and second notches are in similar configurations as well.
  • the outer edge of the center opening is divided into three equal parts, i.e., the first part, the second part, and the third part, by the three notches, i.e., the first notch, the second notch and the third notch, wherein the first flat rim extends along the first part between the first notch and the second notch, the second flat rim extends along the second part between the second notch and the third notch, while the third flat rim extends along the third part between the third notch and the first notch.
  • the center ring is manufactured by injection molding using one of the following materials: Polyphenylene Sulfide (PPS), Polyvinyl Toluene (PVT), Polyamide 6, 6 (PA66), Polyamide 4, 6 (PA46), Liquid Crystal Polymer (LCP), Polyether Ether Ketone (PEEK), and Polyphthalamide (PPA).
  • PPS Polyphenylene Sulfide
  • PVT Polyvinyl Toluene
  • PA66 Polyamide 6, 6
  • PA46 Polyamide 4, 6
  • LCP Liquid Crystal Polymer
  • PEEK Polyether Ether Ketone
  • PPA Polyphthalamide
  • the first flat surface of the first pin, and a surface of the first flat rim contacting the first flat surface of the first pin on assembly of the LED bulb are made of a first material with a first frictional resistance high enough to resist an unintentional sliding along each other.
  • the second flat surface of the second pin, and a surface of the second flat rim contacting the second flat surface of the second pin on assembly of the LED bulb are made of a second material with a second frictional resistance high enough to resist an unintentional sliding along each other.
  • the third flat surface of the third pin, and a surface of the third flat rim contacting the third flat surface of the third pin on assembly of the LED bulb are made of a third material with a third frictional resistance high enough to resist an unintentional sliding along each other.
  • at least one of the first material, the second material, and the third material is Polyphenylene Sulfide (PPS).
  • PPS Polyphenylene Sulfide
  • a LED bulb is proposed for use for example in an automotive vehicle, wherein the LED bulb 10 comprises a burner 11, an elastic component 12 (for example, an O-ring 120, see the following Fig. 2 ), and a center ring 13.
  • the elastic component 12 and the center ring 13 are both inserted through by the burner 11.
  • a user may insert the left part of the burner 11 firstly through the elastic component 12 and then through the center ring 13, thus giving the assembled LED bulb 10 like that in Fig. 1 .
  • the burner 11 of the LED bulb 10 comprises two portions, a first portion 111 and a second portion 112. For example, as shown in Fig.
  • the first portion 111 of the burner 11 can be shaped in a plate, and the second portion 112 of the burner 11 can be shaped in a cylinder, wherein the first portion 111 and the second portion 112 are contiguous to each other at for example a right side of the first portion 111 and a left side of the second portion 112.
  • the first portion 111 of the burner 11 comprises a first side 1111 and a second side 1112, especially the upper and lower sides in Fig. 1 , on which first side 1111 at least one first LED 11110 can be provided and on which second side 1112 at least one second LED 11120 can be provided.
  • first LEDs 11110 and/or second LEDs 11120 are shown to be two in Fig. 1 just for the sake of clarity.
  • a skilled person in the art shall easily understand that any suitable number of first LEDs 11110 and/or second LEDs 11120 can be provided on the first side 1111 and/or second side 1112 of the burner 10, and the present invention shall get all these alternatives encompassed within the protection scope thereof.
  • Fig. 2 shows the burner and the elastic O-ring of the LED bulb in Fig. 1 , i.e., a half-assembled LED bulb
  • Fig. 3 shows the corresponding center ring of the LED bulb in Fig. 1 .
  • the burner 11 has been inserted through the elastic O-ring 120.
  • the burner 11 comprises a first portion 111 in shape of a plate and a second portion 112 in shape of a cylinder, wherein the first portion 111 comprises a first side 1111 (specifically, the lower side in the drawing) provided with two first LEDs 11110 and a second side 1112 (specifically, the upper side in the drawing) provided with two second LEDs 11120.
  • the first pin 1131 of the burner 11 can be shaped into a cuboid, i.e., comprising at least flat side faces.
  • the center ring 13 comprises a center opening 130 and a first notch 1321, which first notch 1321 is cut-out beyond the center opening 130 at a certain point along an outer edge of the center opening 130.
  • the center ring 13 of the LED bulb as shown by Fig.
  • first flat rim 1311 which is extending partly along the outer edge of the center opening 130, specifically along a first part of the outer edge (for example, along most of the outer edge in the drawing), and the first notch 1321 is located at one end of the first flat rim 1311 (for example, the starting end in the drawing).
  • the half-assembled LED bulb like that in Fig. 2 , comprising already the burner 11 and the elastic O-ring 120, is assembled further with the center ring 13 in Fig.
  • the first pin 1131 on the second portion 112 of the burner 11 will pass through the first notch 1321 of the center ring 13 first, and then get pressed against the first flat rim 1311 (especially, the upper face thereof) by the elastic O-ring 120 after for example a slight rotation of the center ring 13 with respect to the burner 11.
  • the first pin 1131 can be shaped into a cuboid, and comprises preferably a flat side face.
  • the contacting interface between the first pin 1131 and the first flat rim 1311, which are pressed against each other by the O-ring 120 after assembly of the LED bulb 10 will be flat as well, rendering the further rotation of the first pin 1131 (thus of the burner 11) along the first flat rim 1311 (thus along the center ring 13) to be continuous and stable.
  • This helps to obtain not only a continuous relative rotation between the burner 11 and the center ring 13, but also a reliable mechanical performance of the LED bulb 10 as assembled, thus being well distinguished from a conventional LED bulb, for example the one comprising a conventional burner 41 and O-ring 42 of Fig. 4 , and a conventional center ring 53 of Fig. 5 .
  • the conventional burner 41 and O-ring 42 of a conventional LED bulb is shown in Fig. 4
  • the corresponding center ring 53 is shown in Fig. 5
  • the conventional center ring 53 comprises a stepped rim 531 instead of a flat one, where several distinct steps 5310 (such as three) are separated by the respective one of the valleys therebetween.
  • the corresponding pin 413 on the conventional burner 41 shall be shaped to have at least a curved or round side face, which is going to be pressed against the respective valley between adjacent steps 5310 of the stepped rim 531 in the conventional center ring 53, so that the burner 41 and the center ring 53 are fixed firmly by means of the O-ring 42.
  • the conventional round pin 413 can be only pressed against the respective valley between adjacent steps 5310 of the stepped rim 531 in the conventional center ring 53.
  • the user rotates the burner 41 with respect to the center ring 53 to change the installing angle of the conventional LED bulb, only three positions can be reached, each corresponding to a valley with the round pin 413 rest thereon.
  • only a limited number of distinct orientations can be obtained, i.e., there is no way to rotate the conventional burner 41 continuously with respect to the conventional center ring 53 having a stepped rim 531, which brings about a lot of inconvenience for practical applications.
  • a side face of the conventional round pin 413 is curved or round, so as to fit and get contact with the respective recessed valley between adjacent steps 5310 of the stepped rim 531 after assembly of the conventional LED bulb.
  • This not only goes against the easy and cost-effective manufacture of the pin 413 and thus of the burner 41, but also results in a severe wear of the pin 413 and the respective stepped rim 531.
  • the curved or round interface between the pin 413 and the stepped rim 531 in the conventional LED bulb also tends to show a poor vibration resistance, because a clearance appears easily between two curved or round surfaces touching each other, leading to an easy loose after vibration.
  • Fig. 6 shows the burner and the O-ring of the LED bulb
  • Fig. 7 shows the corresponding center ring.
  • the burner 11 has inserted through the elastic O-ring 120 to obtain a half-assembled LED bulb.
  • the burner 11 of Fig. 2 the burner 11 of Fig.
  • FIG. 6 comprises also a first portion 111 with a first side 1111 and a second side 1112, and a second portion 112 provided with a first pin 1131, wherein the first side 1111 of the first portion 111 is provided with two first LEDs 11110 and the second side 1112 of the first portion 111 is provided with two second LEDs 11120.
  • the difference is that now in Fig. 6 , there is another second pin 1132 opposite to the first pin 1131 on the second portion 112 of the burner 11.
  • the respective center ring 13 of the LED bulb may comprise a center opening 130, a first flat rim 1311, a second flat rim 1312 opposite to the first flat rim 1311, a first notch 1321, and a second notch 1322 opposite to the first notch 1321.
  • the first pin 1131 and the second pin 1132 are passing through the first notch 1321 and the second notch 1322 respectively, and after a slight rotation of the burner 11 with relative to the center ring 13 for example, the two pins 1131, 1132 will rest on the respective first and second flat rims 1311, 1312.
  • the first pin 1131 and the second pin 1132 preferably both shaped into a cuboid having a flat side face, will be kept firmly against the respective first and second flat rims 1311, 1312, rendering the final assembled LED bulb to be compact and stable.
  • a second pair of components i.e., the second pin 1132 and the second flat rim 1312
  • the elastic O-ring 120 to apply a larger (for example, a doubled) pressure of the burner 11 against the center ring 13, helping to provide the final assembled LED bulb with a more stable performance in mechanics and also electrics, in addition to the continuous angle rotation between the burner 11 and the center ring 13 described above.
  • the first and second sides 1111, 1112 of the plate-shaped first portion 111 of the burner 11 are both provided with LEDs, which renders an omni-directional emission of light to be possible, thus being beneficial for practical applications.
  • the LED bulb according to still another embodiment of the present invention is illustrated, wherein Fig. 8 shows the burner and the O-ring of the LED bulb, while Fig. 9 shows the respective center ring.
  • the burner 11 has inserted through the elastic O-ring 120 to obtain a half-assembled LED.
  • the burner 11 in Fig. 8 comprises a first portion 111, and a second portion 112 having a first pin 1131 and a second pin 1132 provided thereon.
  • the burner 11 in Fig. 8 comprises a first portion 111, and a second portion 112 having a first pin 1131 and a second pin 1132 provided thereon.
  • the first side 1111 and the second side 1112 of the burner 11 can be provided with LEDs as well, which is not illustrated herein for the sake of clarity.
  • the difference is that now in Fig. 8 , there is also a third pin 1133 of the burner 11.
  • the first pin 1131, the second pin 1132, and the third pin 1133 can be positioned at an equal distance on the second portion 112 of the burner 11.
  • the respective center ring 13 may comprise a center opening 130, a first flat rim 1311, a second flat rim 1312, a third flat rim 1313, a first notch 1321, a second notch 1322, and a third notch 1323.
  • the first pin 1131, the second pin 1132, and the third pin 1133 will pass through the first notch 1321, the second notch 1322, and the third notch 1323 respectively.
  • the three pins 1131, 1132, 1133 will rest on the respective first, second and third flat rims 1311, 1312, 1313 of the center ring 13.
  • the first pin 1131, the second pin 1132, and the third pin 1133 are all kept firmly against the respective first, second and third flat rims 1311, 1312, 1313, helping to provide a firm fixation between the burner 11 and the center ring 13.
  • the elastic O-ring 120 is incorporated, which renders the elastic O-ring 120 to be capable of applying an even larger (for example, triple) pressure of the burner 11 against the center ring 13.
  • the first and second sides 1111, 1112 of the first portion 111 of the burner 11 are all provided with LEDs, helping to give an omni-directional emission of light output, thus being beneficial for practical applications.
  • LEDs can be disposed uniformly on the respective side of the first portion of the burner.
  • the center ring in the above proposed LED bulb, can be made by injection molding using one of the following materials: Polyphenylene Sulfide (PPS), Polyvinyl Toluene (PVT), Polyamide 6, 6 (PA66), Polyamide 4, 6 (PA46), Liquid Crystal Polymer (LCP), Polyether Ether Ketone (PEEK), and Polyphthalamide (PPA).
  • PPS Polyphenylene Sulfide
  • PVT Polyvinyl Toluene
  • PA66 Polyamide 6, 6
  • PA46 Polyamide 4, 6
  • LCP Liquid Crystal Polymer
  • PEEK Polyether Ether Ketone
  • PPA Polyphthalamide
  • the contacting interface between the first pin of the burner and the first flat rim of the center ring is made of a special material, preferably, Polyphenylene Sulfide (PPS), having such a high frictional resistance that an unintentional sliding along each other is well resisted. Things can be the same for the contacting interface between the second/third pin and the second/third flat rim.
  • PPS Polyphenylene Sulfide
  • the proposed LED bulb comprises all the necessary electrical components as well, such as PCB(s), electrical wires, driving circuits for LEDs, etc., and all these alternatives shall be covered within the protection scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP20189843.4A 2020-07-09 2020-08-06 Led-glühlampe Pending EP3951253A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20189843.4A EP3951253A1 (de) 2020-08-06 2020-08-06 Led-glühlampe
US18/015,291 US20230265979A1 (en) 2020-07-09 2021-07-09 Led bulb and method of manufacture
PCT/US2021/041117 WO2022011280A1 (en) 2020-07-09 2021-07-09 Led bulb and method of manufacture
EP21837679.6A EP4179252A1 (de) 2020-07-09 2021-07-09 Led-glühlampe und herstellungsverfahren
CN202180061719.4A CN116194716A (zh) 2020-07-09 2021-07-09 Led灯泡及制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20189843.4A EP3951253A1 (de) 2020-08-06 2020-08-06 Led-glühlampe

Publications (1)

Publication Number Publication Date
EP3951253A1 true EP3951253A1 (de) 2022-02-09

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Application Number Title Priority Date Filing Date
EP20189843.4A Pending EP3951253A1 (de) 2020-07-09 2020-08-06 Led-glühlampe

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EP (1) EP3951253A1 (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005044777A (ja) * 2003-07-09 2005-02-17 Nichia Chem Ind Ltd 照明装置
KR20160101380A (ko) * 2015-02-17 2016-08-25 차주은 자동차용 엘이디 램프
CN208107964U (zh) * 2018-02-02 2018-11-16 徐绍东 一种新型汽车led灯组件
CN208139184U (zh) * 2018-05-10 2018-11-23 广州纽威光电科技有限公司 一种多重散热的led汽车灯
EP3421882A1 (de) * 2017-06-27 2019-01-02 OSRAM GmbH Universelle adaptervorrichtung für fahrzeugscheinwerfer und scheinwerferanordnung mit dieser adaptervorrichtung
CN209569667U (zh) * 2019-05-22 2019-11-01 东莞市熠炬电子科技有限公司 一种led大灯
DE202020101383U1 (de) * 2020-03-12 2020-03-19 Lumileds Holding B.V. Beleuchtungsvorrichtung mit Adapterring
EP3647649A1 (de) * 2018-10-31 2020-05-06 OSRAM GmbH Montagestruktur für beleuchtungsvorrichtungen, zugehörige beleuchtungsvorrichtung und verfahren

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005044777A (ja) * 2003-07-09 2005-02-17 Nichia Chem Ind Ltd 照明装置
KR20160101380A (ko) * 2015-02-17 2016-08-25 차주은 자동차용 엘이디 램프
EP3421882A1 (de) * 2017-06-27 2019-01-02 OSRAM GmbH Universelle adaptervorrichtung für fahrzeugscheinwerfer und scheinwerferanordnung mit dieser adaptervorrichtung
CN208107964U (zh) * 2018-02-02 2018-11-16 徐绍东 一种新型汽车led灯组件
CN208139184U (zh) * 2018-05-10 2018-11-23 广州纽威光电科技有限公司 一种多重散热的led汽车灯
EP3647649A1 (de) * 2018-10-31 2020-05-06 OSRAM GmbH Montagestruktur für beleuchtungsvorrichtungen, zugehörige beleuchtungsvorrichtung und verfahren
CN209569667U (zh) * 2019-05-22 2019-11-01 东莞市熠炬电子科技有限公司 一种led大灯
DE202020101383U1 (de) * 2020-03-12 2020-03-19 Lumileds Holding B.V. Beleuchtungsvorrichtung mit Adapterring

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