CN104712938A - Wide-angle LED lamp - Google Patents

Wide-angle LED lamp Download PDF

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Publication number
CN104712938A
CN104712938A CN201510138429.1A CN201510138429A CN104712938A CN 104712938 A CN104712938 A CN 104712938A CN 201510138429 A CN201510138429 A CN 201510138429A CN 104712938 A CN104712938 A CN 104712938A
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CN
China
Prior art keywords
lens
plane
light source
incidence
led light
Prior art date
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Granted
Application number
CN201510138429.1A
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Chinese (zh)
Other versions
CN104712938B (en
Inventor
李慧圆
陈艺伟
周雅玲
梁德娟
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.)
Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Original Assignee
Leedarson Green Lighting Co Ltd
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Priority to CN201510138429.1A priority Critical patent/CN104712938B/en
Publication of CN104712938A publication Critical patent/CN104712938A/en
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Publication of CN104712938B publication Critical patent/CN104712938B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape
    • F21V5/046Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2101/00Point-like light sources

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Provided is a wide-angle LED lamp. The wide-angle LED lamp comprises a bulb shell, a first lens, a second lens, a baseplate, first LED light sources arranged on the baseplate and a lamp head body. The first lens is of an annular structure. The bottom face of the first lens is arranged above the first LED light sources. The top face of the first lens is provided with at least one light distribution face. Each light distribution face comprises an inclined face and a vertical face. Each inclined face gradually ascends along the height of the first LED light sources in the direction away from the centre of the first lens. The top of each vertical face is connected with the top of the corresponding inclined face. The inclined faces are used for reflecting a part of light rays emitted by the LED light sources to the vertical faces. The other part of the light rays is refracted to the top of the bulb shell. The second lens is arranged on the periphery of the first lens. The second lens comprises a light-entering face and a light-exiting face. The light-entering face is inclined corresponding to the vertical faces of the outermost layer of the light distribution faces. The light-exiting face is arranged on the position corresponding to the bottom of the bulb shell. The wide-angle LED lamp has the advantage of being omni-directional and even in lighting.

Description

Big-angle LED lamp
Technical field
The present invention relates to lighting field, particularly a kind of big-angle LED lamp.
Background technology
In recent years, because the development of LED industry is rapid, LED lamp progressively replaces traditional lighting.For room lighting LEDbulb lamp, be: bulb luminescence not only will possess isotropic directivity, and light distribution to be tried one's best evenly avoid light and shade uneven, otherwise user to feel depressed to the basic demand of its light distribution and brightness.In order to specification LEDbulb lamp is produced, the star of american energy has issued the new standard of LED illumination, defines the light distribution of omnirange LED (also referred to as directionless lamp) in a standard.In this regulation, when immediately below bulb, regulation is 0 °, in the scope of each 135 ° of its both sides, its luminous flux at least will reach 20% of lamp total light flux, and within the scope of 135 ° ~ 180 °, its luminous flux at least will reach 5% of lamp total light flux.Namely large at bulb side inferior segment 270 ° of scope inner glow intensities and will be evenly distributed, within the scope of 90 °, top, luminous flux can not be too little.As everyone knows, LED light source is due to encapsulation, and its light-emitting area is 180 ° to the maximum, and light-emitting area is narrow, cannot realize omnibearing luminous.Therefore, how to provide a kind of LED lamp to be lifted out angular, to reach wide-angle luminous intensity distribution, become one of important topic.
Summary of the invention
In view of this, be necessary to provide one to be lifted out angular, to reach the big-angle LED lamp of Omnibearing even luminescence.
The technical solution used in the present invention is: a kind of big-angle LED lamp, comprise bulb housing, first lens, second lens, substrate, the first LED light source on the substrate and body are set, this substrate is fixed on the top of this body, this bulb housing covers at the top of this body, this bulb housing is more than half bubble shell structure, external diameter in the middle part of this bulb housing is greater than the external diameter of bottom opening, these first lens are circulus, this the first LED light source comprises the LED light source of many circular array, the bottom surface of these the first lens is positioned at the top of described first LED light source and on orthographic projection direction, covers described first LED light source, the end face of these the first lens is provided with at least one light distribution surface, described light distribution surface comprises an inclined-plane and a facade, the height of this inclined-plane this first LED light source relative raises gradually on the direction away from this first lens centre, the top of this facade connects the top on this inclined-plane, the bottom of this facade is arranged near this first LED light source, a part of light that this inclined-plane is used for LED light source to send reflects towards this facade, another part light reflects towards this bulb housing top, these the second lens are arranged on the periphery of these the first lens, these second lens comprise incidence surface and exiting surface, the outermost facade of the corresponding described light distribution surface of this incidence surface tilts, this exiting surface to should bulb housing bottom arrange, this incidence surface is used for towards this exiting surface refracted ray, this exiting surface is used for the bottom refracted ray towards this bulb housing.
Compared with prior art, big-angle LED lamp of the present invention arranges these first lens and this second lens, by the light distribution surface of this first lens section and the incidence surface of this second lens section and the cooperation of exiting surface, after the light that this first LED light source is sent to these first lens, or pass through the reflection of inclined-plane towards this facade of this light distribution surface successively, this facade towards the refraction of this incidence surface and this incidence surface after the reflection of this exiting surface, illuminated the bottom of this bulb housing towards the bottom refraction of this bulb housing by this exiting surface, or illuminate top and the sidewall of this bulb housing towards the refraction of the top of this bulb housing from this light distribution surface, the whole lamp of this big-angle LED lamp is made to reach the effect of Omnibearing even luminescence.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of first embodiment of the invention big-angle LED lamp.
Fig. 2 is the profile after the assembling of big-angle LED lamp shown in Fig. 1.
Fig. 3 is the light path schematic diagram of big-angle LED lamp shown in Fig. 2.
Description of reference numerals:
100 big-angle LED lamp 10 bulb housing 20 substrates
30 body 40 first lens 50 second lens
21 first LED light source 22 second LED light source 41 light distribution surface
411 inclined-plane 412 facade 42 first planes of incidence
43 vertical plane 51 incidence surface 52 exiting surfaces
53 second planes of incidence
Detailed description of the invention
Below by way of specific embodiment, the present invention will be described in detail:
Fig. 1 is the three-dimensional exploded view of first embodiment of the invention extensive angle LED 100, this big-angle LED lamp 100 comprises bulb housing 10, first lens 40, second lens 50, substrate 20, is arranged on the first LED light source 21 on this substrate 20 and body 30, this substrate 20 is fixed on the top of this body 10, this bulb housing 10 covers at the top of this body 20, this bulb housing 10 is more than half bubble shell structure, and the external diameter in the middle part of this bulb housing 10 is greater than the external diameter of bottom opening.
Please refer to Fig. 1, Fig. 2, in the present embodiment, these the second lens 50 are arranged on the periphery of these the first lens 40, can be that these first lens 40 are one-body molded with these second lens 50.
Please refer to Fig. 1, Fig. 2, these first lens 40 are circulus, this the first LED light source 21 comprises the LED light source of many circular array, and the bottom surface of these the first lens 40 is positioned at the top of this first LED light source 21 and on orthographic projection direction, covers this first LED light source 21.The end face of these the first lens 40 is provided with multiple light distribution surface 41, each light distribution surface 41 comprises an inclined-plane 411 and a facade 412, the height of this inclined-plane 411 this first LED light source 21 relative raises gradually on the direction away from this first lens 40 center, the top of this facade 412 connects the top on this inclined-plane 411, the bottom of this facade 412 is arranged near this first LED light source 21, this inclined-plane 411 reflects towards this facade 412 for a part of light sent by LED light source, and another part light reflects towards this bulb housing 10 top.The bottom of these the first lens 40 is provided with first plane of incidence 42, and this first plane of incidence 42 is the cambered surface protruded towards this first LED light source 21, and this first plane of incidence 42 reflects towards these light distribution surface 41 for the some light sent by this first LED light source 21.
Please refer to Fig. 2, in the present embodiment, these first lens 40 comprise multiple light distribution surface 41, these light distribution surface 41 are circulus, these light distribution surface 41 arrange along the center of these the first lens 40 to edge and form concentric ring structure, and the height of these light distribution surface 41 this first LED light source 21 relative raises gradually on the direction away from this first lens 40 center.During practice, can according to the consideration of design, these first lens 40 also only can comprise a light distribution surface 41, and reflect towards this facade 412 as long as realize a part of light that LED light source sends by this inclined-plane 411, another part light reflects towards this bulb housing 10 top.
Please refer to Fig. 2, these second lens 50 comprise incidence surface 51 and exiting surface 52, and this incidence surface 51 is for towards this exiting surface 52 refracted ray.The outermost facade 412 of this incidence surface 51 these light distribution surface 41 corresponding tilts, make the light that this incidence surface 51 reflects towards this exiting surface 52 reflecting part from this facade 412, this incidence surface 51 is the inclination globoidal structure protruded out towards the direction away from this substrate 20.This exiting surface 52 to should bulb housing 10 bottom arrange, this exiting surface 52 protrudes out towards the direction away from this incidence surface 51 and forms ring-type convex lens structures with this incidence surface 51, and this exiting surface 52 is for the bottom refracted ray towards this bulb housing 10.This incidence surface 51 forms convex lens structures with this exiting surface 52, makes the light reflected from this incidence surface 51 to this exiting surface 52 more can be mapped to the bottom of this bulb housing 10.The bottom surface of these the second lens 50 is provided with second plane of incidence 53, this second plane of incidence 53 is inclined plane, the top of this second plane of incidence 53 is connected with the bottom edge of these the first lens 40, the bottom of this second plane of incidence 53 is connected with the bottom of this exiting surface 52, and this second plane of incidence 53 is for towards this incidence surface 51 refracted ray.This substrate 20 is provided with the second LED light source 22, this second LED light source 22 comprises the LED light source of many circular array, and this second LED light source 22 is arranged in the drop shadow spread of this second plane of incidence 53 on this substrate 20.
In the present embodiment, the bottom surface of these the first lens 40 is provided with roughly vertical with this substrate 20 vertical plane 43, the top of this second plane of incidence 53 is connected with the top of this vertical plane 43, like this, the some light that this first LED light source 21 is sent can more reflect towards second plane of incidence 53 of these the second lens 50, the brightness increased bottom this bulb housing 10 by the reflection of this incidence surface 51 and the refraction of this exiting surface 52.
Please refer to Fig. 2 and Fig. 3, Fig. 3 is the light path schematic diagram of the present embodiment big-angle LED lamp 100.When this big-angle LED lamp 100 works, most of light that this first LED light source 21 sends is refracted in the light distribution surface 41 of these the first lens 40 through first plane of incidence 42 of these the first lens 40, some light is refracted on the incidence surface 51 of this second lens section 50 by this inclined-plane 411 by this light distribution surface 41 after this facade 412 reflects, the exiting surface 52 of light towards these the second lens 50 reflects by this incidence surface 51, eventually passes this exiting surface 52 and reflects towards the bottom of this bulb housing 10 and illuminate the bottom of this bulb housing 10; Another part light directly to the top of this bulb housing 10 or sidewall refraction, thus is illuminated top and the sidewall of this bulb housing 10 by this inclined-plane 411.In addition, another part light that this first LED light source 21 sends can also be refracted on this incidence surface 51 by second plane of incidence 53 of these the second lens 50, successively through the reflection of this incidence surface 51, the refraction of this exiting surface 52 and strengthen the brightness of the bottom of this bulb housing 10.Like this, the light that this first LED light source 21 sends, by the luminous intensity distribution of these first lens 40 and the second lens 50, makes the top of this bulb housing 10, sidewall and bottom be uniformly illuminated, and realizes the luminous intensity distribution of wide-angle.Further, this substrate 20 is provided with the second LED light source 22, the light that this second LED light source 22 sends is reflected towards this incidence surface 51 by second plane of incidence 53 of these the second lens 50, the exiting surface 52 of light towards these the second lens 50 reflects by this incidence surface 51, eventually passes this exiting surface 52 and reflects and increase the brightness of the bottom of this bulb housing 10.By more than, when LED light source number is more, the application, by the arrangement of dicyclo LED light source, is arranged by the inner and outer ring of these first lens 40 and these the second lens 50 and carries out luminous intensity distribution to dicyclo LED light source, thus realize the large angle illumination of this big-angle LED lamp.
In sum, big-angle LED lamp 100 of the present invention arranges these first lens 40 and this second lens 50, by the cooperation of the light distribution surface 41 of this first lens section 40 and the incidence surface 51 of this second lens section 50 and exiting surface 52, after the light that this first LED light source 21 is sent to these first lens 40, or pass through the reflection of inclined-plane 411 towards this facade 412 of this light distribution surface 41 successively, this facade 412 towards the refraction of this incidence surface 51 and this incidence surface 51 after the reflection of this exiting surface 52, illuminated the bottom of this bulb housing 10 towards the bottom refraction of this bulb housing 10 by this exiting surface 52, or illuminate top and the sidewall of this bulb housing 10 towards the refraction of the top of this bulb housing 10 from this light distribution surface 41, the whole lamp of this big-angle LED lamp 100 is made to reach the effect of Omnibearing even luminescence.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.

Claims (11)

1. a big-angle LED lamp, comprise bulb housing, first lens, second lens, substrate, the first LED light source on the substrate and body are set, this substrate is fixed on the top of this body, this bulb housing covers at the top of this body, it is characterized in that: this bulb housing is more than half bubble shell structure, external diameter in the middle part of this bulb housing is greater than the external diameter of bottom opening, these first lens are circulus, this the first LED light source comprises the LED light source of many circular array, the bottom surface of these the first lens is positioned at the top of described first LED light source and on orthographic projection direction, covers described first LED light source, the end face of these the first lens is provided with at least one light distribution surface, described light distribution surface comprises an inclined-plane and a facade, the height of this inclined-plane this first LED light source relative raises gradually on the direction away from this first lens centre, the top of this facade connects the top on this inclined-plane, the bottom of this facade is arranged near this first LED light source, a part of light that this inclined-plane is used for LED light source to send reflects towards this facade, another part light reflects towards this bulb housing top, these the second lens are arranged on the periphery of these the first lens, these second lens comprise incidence surface and exiting surface, the outermost facade of the corresponding described light distribution surface of this incidence surface tilts, this exiting surface to should bulb housing bottom arrange, this incidence surface is used for towards this exiting surface refracted ray, this exiting surface is used for the bottom refracted ray towards this bulb housing.
2. big-angle LED lamp according to claim 1, is characterized in that: described light distribution surface is circulus.
3. big-angle LED lamp according to claim 2, is characterized in that: comprise multiple light distribution surface, and described light distribution surface arranges along the center of these the first lens to edge and forms concentric ring structure.
4. big-angle LED lamp according to claim 3, is characterized in that: the height of described light distribution surface this first LED light source relative raises gradually on the direction away from this first lens centre.
5. big-angle LED lamp according to claim 1, it is characterized in that: the bottom of these the first lens is provided with first plane of incidence, this first plane of incidence is the cambered surface protruded towards this first LED light source, and this first plane of incidence is used for the some light that this first LED light source sends to reflect towards described light distribution surface.
6. big-angle LED lamp according to claim 1, it is characterized in that: the bottom surface of these the second lens is provided with second plane of incidence, this second plane of incidence is inclined plane, the top of this second plane of incidence is connected with the bottom edge of these the first lens, and the bottom of this second plane of incidence is connected with the bottom of this exiting surface.
7. big-angle LED lamp according to claim 6, is characterized in that: the bottom surface of these the first lens is provided with roughly vertical with this substrate vertical plane, and the top of this second plane of incidence is connected with the top of this vertical plane.
8. big-angle LED lamp according to claim 6, it is characterized in that: this substrate is provided with the second LED light source, this second LED light source is arranged in this second plane of incidence drop shadow spread on the substrate, and this second LED light source comprises the LED light source of many circular array.
9. big-angle LED lamp according to claim 1, is characterized in that: this incidence surface is the inclination globoidal structure protruded out towards the direction away from this substrate.
10. big-angle LED lamp according to claim 1, is characterized in that: this exiting surface protrudes out towards the direction away from this incidence surface and forms ring-type convex lens structures with this incidence surface.
11. big-angle LED lamps according to claim 1, is characterized in that: these first lens and this second lens one-body molded.
CN201510138429.1A 2015-03-27 2015-03-27 Large Angle LED Light Active CN104712938B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN104712938B CN104712938B (en) 2018-05-01

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105402656A (en) * 2015-12-30 2016-03-16 漳州立达信光电子科技有限公司 Novel LED spotlight structure
CN106764946A (en) * 2017-03-16 2017-05-31 漳州立达信光电子科技有限公司 A kind of LED light
CN106958777A (en) * 2017-04-19 2017-07-18 贵州微源科技有限公司 A kind of HID lamp tool outdoor lighting composition system
CN108506755A (en) * 2018-05-30 2018-09-07 浙江阳光美加照明有限公司 A kind of LEDbulb lamp using combination light guide
CN111219654A (en) * 2020-02-28 2020-06-02 江西祥华防爆科技有限公司 Full-period-luminosity LED lamp
CN113446530A (en) * 2021-07-12 2021-09-28 深圳市中孚能电气设备有限公司 Lamp holder and miner's lamp
CN113446540A (en) * 2021-05-27 2021-09-28 东风电驱动系统有限公司 Direct illumination lamp box and instrument assembly of automobile instrument panel

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US20110261569A1 (en) * 2010-04-27 2011-10-27 Citizen Holdings Co., Ltd. Lens member and optical unit using said lens member
CN104075235A (en) * 2013-03-28 2014-10-01 海洋王(东莞)照明科技有限公司 a surrounding lens
CN204099951U (en) * 2014-08-11 2015-01-14 立达信绿色照明股份有限公司 Extensive angle LED
CN104296070A (en) * 2014-08-28 2015-01-21 新烨光学(深圳)有限公司 Novel wide-angle lens
CN204227319U (en) * 2014-10-30 2015-03-25 厦门飞德利照明科技有限公司 A kind of large-angle LED lens and wide-angle bulb lamp
CN204534217U (en) * 2015-03-27 2015-08-05 立达信绿色照明股份有限公司 Big-angle LED lamp

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Publication number Priority date Publication date Assignee Title
US20110261569A1 (en) * 2010-04-27 2011-10-27 Citizen Holdings Co., Ltd. Lens member and optical unit using said lens member
CN104075235A (en) * 2013-03-28 2014-10-01 海洋王(东莞)照明科技有限公司 a surrounding lens
CN204099951U (en) * 2014-08-11 2015-01-14 立达信绿色照明股份有限公司 Extensive angle LED
CN104296070A (en) * 2014-08-28 2015-01-21 新烨光学(深圳)有限公司 Novel wide-angle lens
CN204227319U (en) * 2014-10-30 2015-03-25 厦门飞德利照明科技有限公司 A kind of large-angle LED lens and wide-angle bulb lamp
CN204534217U (en) * 2015-03-27 2015-08-05 立达信绿色照明股份有限公司 Big-angle LED lamp

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105402656A (en) * 2015-12-30 2016-03-16 漳州立达信光电子科技有限公司 Novel LED spotlight structure
CN105402656B (en) * 2015-12-30 2018-11-20 漳州立达信光电子科技有限公司 LED spotlight structure
CN106764946A (en) * 2017-03-16 2017-05-31 漳州立达信光电子科技有限公司 A kind of LED light
CN106764946B (en) * 2017-03-16 2019-12-31 漳州立达信光电子科技有限公司 A kind of LED light
CN106958777A (en) * 2017-04-19 2017-07-18 贵州微源科技有限公司 A kind of HID lamp tool outdoor lighting composition system
CN108506755A (en) * 2018-05-30 2018-09-07 浙江阳光美加照明有限公司 A kind of LEDbulb lamp using combination light guide
CN111219654A (en) * 2020-02-28 2020-06-02 江西祥华防爆科技有限公司 Full-period-luminosity LED lamp
CN113446540A (en) * 2021-05-27 2021-09-28 东风电驱动系统有限公司 Direct illumination lamp box and instrument assembly of automobile instrument panel
CN113446540B (en) * 2021-05-27 2022-09-02 东风电驱动系统有限公司 Direct illumination lamp box and instrument assembly of automobile instrument panel
CN113446530A (en) * 2021-07-12 2021-09-28 深圳市中孚能电气设备有限公司 Lamp holder and miner's lamp

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