EP3722654A1 - Punktlichtvorrichtung - Google Patents

Punktlichtvorrichtung Download PDF

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Publication number
EP3722654A1
EP3722654A1 EP20168386.9A EP20168386A EP3722654A1 EP 3722654 A1 EP3722654 A1 EP 3722654A1 EP 20168386 A EP20168386 A EP 20168386A EP 3722654 A1 EP3722654 A1 EP 3722654A1
Authority
EP
European Patent Office
Prior art keywords
light
lens
module
source plate
spot
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
Application number
EP20168386.9A
Other languages
English (en)
French (fr)
Other versions
EP3722654B1 (de
Inventor
Xueqiong Chen
Hongkui JIANG
Fengyu Yan
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.)
Leedarson Lighting Co Ltd
Original Assignee
Leedarson Lighting Co Ltd
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 Leedarson Lighting Co Ltd filed Critical Leedarson Lighting Co Ltd
Publication of EP3722654A1 publication Critical patent/EP3722654A1/de
Application granted granted Critical
Publication of EP3722654B1 publication Critical patent/EP3722654B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/006—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/233—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
    • 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
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/007—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
    • F21V23/009—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing the casing being inside the housing of the lighting device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F21V5/004—Refractors for light sources using microoptical elements for redirecting or diffusing light using microlenses
    • 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
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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
    • F21Y2105/12—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/50—Light sources with three-dimensionally disposed light-generating elements on planar substrates or supports, but arranged in different planes or with differing orientation, e.g. on plate-shaped supports with steps on which light-generating elements are mounted
    • 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
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • 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
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • 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 present invention is related to the technical field of illumination and more particularly related to a spot light apparatus.
  • Lighting or illumination is the deliberate use of light to achieve a practical or aesthetic effect.
  • Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight.
  • Daylighting using windows, skylights, or light shelves
  • This can save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings.
  • Proper lighting can enhance task performance, improve the appearance of an area, or have positive psychological effects on occupants.
  • Lighting is usually accomplished using light fixtures, and is a key part of interior design. Lighting can also be an intrinsic component of landscape projects.
  • a light-emitting diode is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. This effect is called electroluminescence. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor. White light is obtained by using multiple semiconductors or a layer of light-emitting phosphor on the semiconductor device.
  • LEDs Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light. Infrared LEDs are used in remote-control circuits, such as those used with a wide variety of consumer electronics. The first visible-light LEDs were of low intensity and limited to red. Modern LEDs are available across the visible, ultraviolet, and infrared wavelengths, with high light output.
  • LEDs were often used as indicator lamps, replacing small incandescent bulbs, and in seven-segment displays. Recent developments have produced white-light LEDs suitable for room lighting. LEDs have led to new displays and sensors, while their high switching rates are useful in advanced communications technology.
  • LEDs have many advantages over incandescent light sources, including lower energy consumption, longer lifetime, improved physical robustness, smaller size, and faster switching.
  • Light-emitting diodes are used in applications as diverse as aviation lighting, automotive headlamps, advertising, general lighting, traffic signals, camera flashes, lighted wallpaper and medical devices.
  • the color of light emitted from an LED is neither coherent nor monochromatic, but the spectrum is narrow with respect to human vision, and functionally monochromatic.
  • Spot light devices provide light beams projected on desired object. It is important and useful to study the needs and characteristics of spot light devices to develop a better solution with lower cost, easy to assemble and good heat dissipation.
  • a spot light apparatus includes a light source plate, a driver, a control module and a lens module.
  • the light source plate is mounted with a color module and a white light module in a central area of the light source plate.
  • the color module has LED chips of multiple colors integrated in a package.
  • the driver is used for converting an external power source to an internal power source.
  • the control module is electrically connected to the driver for controlling the color module and the white light module to emit a mixed light.
  • the lens module has an inner central lens, a surrounding lens, an outer central lens, and a main light output side.
  • the inner central lens refracts the mixed light to the main light output side.
  • the surrounding lens reflects the mixed light to the main output side.
  • the outer central lens further mixes sub-lights from the color module and the white light module.
  • the inner central lens is aligned with the central part of the light source plate and disposed above the color module and the white light module.
  • the surrounding lens has multiple lens rings.
  • Each lens ring has a tilt reflection surface for reflecting a sub-light of the mixed light to the light output side.
  • the tilt reflection surface has a tilt angle less than 90 degrees with respect to the light source plate.
  • each lens ring has a vertical wall for receiving the sub-light of the mixed light.
  • the vertical wall is substantially perpendicular to the light source plate.
  • the vertical wall of an external ring lens of the multiple lens rings engages the light source plate.
  • an external ring lens of the multiple lens rings has a larger length than an internal ring lens of the multiple lens rings.
  • the spot light apparatus also includes a light housing with a bowl potion and a neck portion.
  • the lens module is installed to the bowl portion and defining a peripheral space. A portion of the control module is kept in the peripheral space.
  • control module comprises a wireless circuit disposed in the peripheral space.
  • control module is plugged to the driver and extended with a tilt angle toward the peripheral space.
  • over 70% of the light housing is made of a metal material.
  • an antenna area electrically connected to the control module and disposed on an exterior surface of the light housing.
  • At least one of the color module and the white light module are disposed on the light source plate with a tilt angle so as to increase overlapping lights of the color module and the white light module.
  • the outer central lens comprises more than 25 micro lens.
  • peripheral diffusion ring surrounding the outer central lens.
  • the outer central lens and the peripheral diffusion ring are substantially located in the same plane.
  • a spot light apparatus includes a light source plate 895, a driver 894, a control module 888 and a lens module 880.
  • the light source plate 895 is mounted with a color module 892 and a white light module 893 in a central area of the light source plate 895.
  • the color module 892 has LED chips of multiple colors integrated in a package.
  • the driver 894 is used for converting an external power source to an internal power source.
  • the control module 888 is electrically connected to the driver 894 for controlling the color module 892 and the white light module 893 to emit a mixed light.
  • the lens module 880 has an inner central lens 898, a surrounding lens 896, an outer central lens 881, and a main light output side 897.
  • the inner central lens 898 refracts the mixed light to the main light output side.
  • the surrounding lens reflects the mixed light to the main output side 897.
  • the outer central lens 881 further mixes sub-lights from the color module 892 and the white light module 893.
  • the inner central lens 898 is aligned with the central part of the light source plate 895 and disposed above the color module 892 and the white light module 893.
  • the surrounding lens has multiple lens rings.
  • Each lens ring has a tilt reflection surface for reflecting a sub-light of the mixed light to the light output side.
  • the tilt reflection surface has a tilt angle less than 90 degrees with respect to the light source plate.
  • each lens ring has a vertical wall 884 for receiving the sub-light of the mixed light.
  • the vertical wall 884, 882 are substantially perpendicular to the light source plate 895.
  • an external ring lens of the multiple lens rings has a larger length than an internal ring lens 883 of the multiple lens rings.
  • a reflection layer 899 on the tilt reflection surface 885 there is a reflection layer 899 on the tilt reflection surface 885.
  • a material is coated or pained on surface of the lens module.
  • a heat dissipation layer 879 on the tilt reflection surface 885 there is a heat dissipation layer 879 on the tilt reflection surface 885.
  • a metal layer is attached to the surface of the lens module.
  • the spot light apparatus also includes a light housing with a bowl potion 878 and a neck portion 877.
  • the lens module is installed to the bowl portion 878 and defining a peripheral space 886.
  • a portion of the control module 888 is kept in the peripheral space 886.
  • control module 888 comprises a wireless circuit 887 disposed in the peripheral space.
  • control module is plugged to the driver and extended with a tilt angle toward the peripheral space.
  • over 70% of the light housing is made of a metal material.
  • Fig. 10 there is an antenna area 889 electrically connected to the control module and disposed on an exterior surface of the light housing.
  • At least one of the color module and the white light module are disposed on the light source plate with a tilt angle, e.g. on tilt platforms 891, 890 so as to increase overlapping lights of the color module and the white light module.
  • the outer central lens comprises more than 25 micro lens.
  • peripheral diffusion ring surrounding the outer central lens.
  • the outer central lens and the peripheral diffusion ring are substantially located in the same plane.
  • the spot light apparatus 10 has a lens module 50.
  • the lens module 50 has an outer central lens 51.
  • a peripheral diffusion ring 511 surrounds the outer central lens 51.
  • the peripheral diffusion ring 511 surrounds the outer central lens 51.
  • Fig. 7 shows another view of the example in Fig. 6 .
  • the lens module 50 has a central inner lens 52.
  • the lens module 50 has an outer central lens 51. There is also an inner central lens 52. There are three surrounding lens 53 surrounding the inner central lens 52. There is a light source plate 20. There is a control module 40. The light source plate 20 is placed in a heat dissipation cup 60. There is a driver 30.
  • Fig. 4 shows an exploded diagram of the example in Fig. 3 . Therefore, reference numerals with the same values refer to the same components and are not repeated for brevity.
  • Fig. 4 there are two screws 70 for fixing the light source plate 21 mounted with a color module 23 and a white light module 22.
  • the light source plate 21 has a color module 23.
  • the color module 23 has a red LED chip 232, a blue LED chip 233, a green LED chip 234 integrated in a package 231.
  • Fig. 8 shows light paths in an example.
  • most light are refracted by the inner central lens 52 to emit light from an external central lens 51.
  • the heat sink cup 60 has a positioning block 61 with a cone structure 62 for guiding connection of the heat sink cup 60 and the light source plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP20168386.9A 2019-04-12 2020-04-07 Punktlichtvorrichtung Active EP3722654B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920492279.8U CN209991427U (zh) 2019-04-12 2019-04-12 射灯

Publications (2)

Publication Number Publication Date
EP3722654A1 true EP3722654A1 (de) 2020-10-14
EP3722654B1 EP3722654B1 (de) 2021-12-29

Family

ID=69291390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20168386.9A Active EP3722654B1 (de) 2019-04-12 2020-04-07 Punktlichtvorrichtung

Country Status (2)

Country Link
EP (1) EP3722654B1 (de)
CN (1) CN209991427U (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3943803A1 (de) * 2020-07-20 2022-01-26 Leedarson Lighting Co., Ltd. Beleuchtungsvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120274208A1 (en) * 2009-06-05 2012-11-01 Koninklijke Philips Electronics N.V. Lighting device with built-in rf antenna
WO2012159744A2 (de) * 2011-05-24 2012-11-29 Naseri Morteza Mobalegh Leuchte insbesondere strassenleuchte mit leds
US20170254525A1 (en) * 2016-03-02 2017-09-07 Osram Gmbh Light Module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120274208A1 (en) * 2009-06-05 2012-11-01 Koninklijke Philips Electronics N.V. Lighting device with built-in rf antenna
WO2012159744A2 (de) * 2011-05-24 2012-11-29 Naseri Morteza Mobalegh Leuchte insbesondere strassenleuchte mit leds
US20170254525A1 (en) * 2016-03-02 2017-09-07 Osram Gmbh Light Module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3943803A1 (de) * 2020-07-20 2022-01-26 Leedarson Lighting Co., Ltd. Beleuchtungsvorrichtung

Also Published As

Publication number Publication date
EP3722654B1 (de) 2021-12-29
CN209991427U (zh) 2020-01-24

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