WO2013131227A1 - Lentille de guidage de lumière à del - Google Patents

Lentille de guidage de lumière à del Download PDF

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Publication number
WO2013131227A1
WO2013131227A1 PCT/CN2012/071911 CN2012071911W WO2013131227A1 WO 2013131227 A1 WO2013131227 A1 WO 2013131227A1 CN 2012071911 W CN2012071911 W CN 2012071911W WO 2013131227 A1 WO2013131227 A1 WO 2013131227A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
lens
led
hollow portion
emitting surface
Prior art date
Application number
PCT/CN2012/071911
Other languages
English (en)
Chinese (zh)
Inventor
胡挺进
Original Assignee
胡斌
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 胡斌 filed Critical 胡斌
Priority to PCT/CN2012/071911 priority Critical patent/WO2013131227A1/fr
Publication of WO2013131227A1 publication Critical patent/WO2013131227A1/fr

Links

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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21K9/232—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 an essentially omnidirectional light distribution, e.g. with a glass bulb
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • 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
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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 relates to the field of illumination, and relates to an LED light guiding lens that can be used only as a light guiding lens, and can also function as a light guiding lens and a lamp cover.
  • LED bulbs commonly used in the market generally include an LED illuminator (including an LED lamp bead and an aluminum substrate), a heat sink, a driving circuit, a lamp cap, a lamp cover, and a light guiding lens for realizing light distribution.
  • the existing light guiding lens is basically single. a cylindrical lens, as shown in FIG.
  • the unitary cylindrical lens generally includes a base for connecting an LED substrate, a cylindrical body extending upward from the base, and an inverted conical light-emitting surface formed at an upper end portion of the body.
  • the existing light guiding lens has an unattractive surface shape for achieving the light distribution effect, there is currently no light guide lens in the market to replace the lamp cover, and it is used as both a light guiding lens and a lampshade.
  • the light emitted by the LED is transmitted upward through the cylindrical body to the light exiting portion, and after being refracted or reflected and refracted, the light is mainly emitted from the three regions, specifically Included is a vertical area substantially along the axis of the cylindrical body, a first annular area that is 60 degrees from the vertical area, and a second annular area that is at an angle of 60 degrees to the first annular area, and 1.
  • the area of the second annular surface and the vertical area can be adjusted by adjusting the size of the cylindrical body and the light exiting portion, but the adjustment range is limited.
  • the angle of the light emitted by the lamp post can reach about 240 degrees, but there is still a blind spot of 120 degrees, so that the coverage of the emitted light is not large enough; in addition, the emitted light is mainly concentrated in the above vertical area, that is, the concentrated light is mainly concentrated. In the area facing the light guiding lens, therefore, the outgoing light is concentrated and not uniform enough; further, for the light guiding lens of such a structure, on the one hand, it is impossible to ensure that the incident light is collected in the light guiding lens, and the other In view, the incident light needs to be re-emitted through the entire cylindrical body, so the light loss is large.
  • an LED light guiding lens that can be used at least as a light guiding lens on the one hand and as both a light guiding lens and a light cover on the other hand.
  • the technical solution adopted by the utility model is: an LED light guiding lens comprising a lens body and a lens cover, wherein the lens body has an indented hollow portion for accommodating the LED illuminator, and an inner surface of the hollow portion a light incident surface of the LED light guiding lens; the lens body further has an indented concave surface, the lens cover is engaged with an outer surface of the lens body as a substantially light emitting surface, and the lens cover surrounds the invagin The light-emitting surface, the outer surface of the lens cover and the portion of the substantially light-emitting surface of the lens body that is not surrounded by the lens cover constitute a light-emitting surface of the LED light guide lens.
  • the design of the trapped light surface can increase the derivation light below the horizontal plane, so that the LED light guiding lens of the present invention has a more uniform light output, and if combined with a suitable shape of the light emitting surface, the existing single columnar light guiding lens can be compared with the existing single columnar light guiding lens. A larger angle of illumination is obtained.
  • the invading light surface is an inverted conical light emitting surface.
  • the light incident surface is a frosted surface, which makes the incident light more divergent, and further makes the light led out by the LED light guiding lens more uniform.
  • the lens body has an intrinsic light surface
  • the invading light surface and the hollow portion are disposed on the top and bottom of the lens body
  • the center line of the invading light surface coincides with the center line of the hollow portion.
  • the center line of the invading light surface coincides with the center line of the hollow portion to make the most efficient use of the invading light surface.
  • the LED light guiding lens is a rotating body whose center line of the inner concave light surface and the hollow portion is a rotation center line.
  • the hollow portion includes a first hollow portion forming an opening of the hollow portion and a second hollow portion receiving the first hollow portion, the second hollow portion being opposite to the first hollow portion in a direction perpendicular to a center line of the hollow portion
  • the upper portion is offset inwardly to form an inner stepped surface between the first and second hollow portions, and the inner step protrudes toward the opening direction to form a card slot on the carrier (usually a heat sink) for the LED illuminator Engaged card.
  • the first light-emitting surface includes a first light-emitting surface surrounding the opening of the invading light surface and a second light-emitting surface surrounding the opening of the hollow portion, and the first light-emitting surface is offset from the second light-emitting surface to make the first
  • a step surface is formed between the second illuminating surface and the second illuminating surface; the opening edge of the lens cover is engaged with the step surface, so that the second illuminating surface and the outer surface of the lens cover smoothly transition at the joint.
  • the first and second light-emitting surfaces are all part of a spherical surface, and the first and second light-emitting surfaces are concentric. a center of the first and second light-emitting surfaces is located at a boundary plane formed by an outer edge of the stepped surface between the first and second light-emitting surfaces On. The boundary plane between the first and second light exit surfaces is perpendicular to the center line of the hollow portion. All of the above technical features are advantageous for the design and manufacture of the lens body and the lens cover.
  • each of the lens cover are equal in diameter to the diameters of the first and second light-emitting surfaces, respectively, and the first light-emitting surface completely conforms to the inner surface of the lens cover to make the lens
  • the outer surface of the cover and the second light-emitting surface form a spherical surface as a light-emitting surface of the LED light guiding lens.
  • the illuminating surface is designed as a spherical surface, and even if the lens body adopts an intrinsic illuminating surface, a larger angle of illuminating angle can be obtained with respect to the unitary lenticular lens.
  • the light-emitting surface is a spherical surface greater than 50% (the shape of the outer casing conventionally used in conventional bulbs is hemispherical), so that an exit angle of more than 150 degrees can be obtained; the light-emitting surface is especially spherical surface of 80% or more. In this way, an exit angle of more than 300 degrees can be obtained.
  • the LED light bulb of the present invention can have the same appearance shape as the currently used LED candle light.
  • Another object of the present invention is to provide an LED light bulb including an LED illuminator and a lamp cover, wherein the lamp cover is the LED light guide lens described above, and the LED illuminator is housed in a hollow portion of the LED light guide lens, and The carrier of the LED bulb for carrying the LED illuminator is engaged with the splicing member provided on the inner wall of the hollow portion. That is, the LED light bulb of the present invention replaces the conventional lamp cover with the above-described LED light guiding lens, and it is no longer necessary to provide a light guiding lens built in the lamp housing.
  • the utility model has the beneficial effects that: the LED light guiding lens of the utility model adopts the structure of the lens body and the lens cover which are joined together, so that it can be installed not only as a LED light guiding lens in a conventional LED light bulb, but also It replaces the lampshade of the traditional LED bulb, and integrates the light guiding lens and the lampshade, which not only simplifies the installation of the LED bulb, but also facilitates the heat dissipation of the LED lamp bead; in addition, if the LED light guiding lens of the present invention is to be used Designed to have a spherical surface and a candle shape with a certain surface area, a larger illumination angle can be obtained with respect to the existing unitary lenticular lens.
  • FIG. 1 is a view showing the structure of a conventional unitary lenticular lens and the distribution of emitted light
  • FIGS. 2a and 2b are perspective views of different perspectives of an embodiment of an LED light guiding lens according to the present invention
  • 3 is a front view of the LED light guiding lens shown in FIGS. 2a and 2b
  • FIG. 4 is a cross-sectional view taken along line AA of FIG. 3
  • FIG. 5 is a view showing a distribution of light emitted from the LED light guiding lens shown in Figs. 2a and 2b
  • 6 is a front view showing another embodiment of the LED light guiding lens according to the present invention
  • FIGS. 1 is a view showing the structure of a conventional unitary lenticular lens and the distribution of emitted light
  • FIGS. 2a and 2b are perspective views of different perspectives of an embodiment of an LED light guiding lens according to the present invention
  • 3 is a front view of the LED light guiding lens shown in FIGS. 2a and 2b
  • FIG. 7a and 7b respectively show the spherical and candle-shaped LED light guiding lens of the present invention in a small diameter of 35 mm.
  • FIG. 8 shows the application of the spherical LED light guiding lens of the present invention to a transparent bulb having a diameter of 55 mm, wherein The LED light guiding lens is built in, and is only used as a light guiding lens;
  • FIG. 9 shows the main process of assembling the spherical LED light guiding lens shown in FIG. 7a as a cover, and assembling the LED lamp of the utility model;
  • the LED light guiding lens of the present invention includes a lens body 1 and a lens cover 2, and the lens body 1 has an indentation for accommodating LED illumination.
  • the hollow portion 11 of the body such that the inner surface of the hollow portion 11 becomes the light incident surface of the LED light guiding lens, and the light incident surface can adopt a frosted surface; the lens body 1 further has an indented concave light emitting surface 12,
  • the intrinsic light exiting surface 12 is not limited to one, and is not limited to the inverted cone-shaped light exiting surface which is generally used at present, and the shape of the invading light surface can achieve the purpose of increasing the light output below the horizontal plane. That is, the lens cover 2 and the outer surface of the lens body 1 as a substantially light-emitting surface are joined by ultrasonic welding, for example.
  • the technical solution of the present invention does not exclude the structure in which the two are integrally formed.
  • the lens cover 2 surrounds all of the indented light-emitting surfaces 12, and the outer surface of the lens cover 2 and the portion of the substantially light-emitting surface of the lens body 1 that is not surrounded by the lens cover 2 are
  • the light-emitting surface of the LED light guiding lens of the present invention is constructed.
  • only one recessed light surface 12 is provided.
  • the recessed light surface is preferably disposed at the top and bottom of the lens body 1 with the hollow portion 11, and is recessed at the center line of the light surface 12.
  • the LED light guiding lens of the present invention is a rotating body having a center line of the indentation light surface and the hollow portion as a rotation center line, and has an outer shape which is more suitable as a lamp cover.
  • the lens body is provided with a plurality of intrinsic light exiting faces 12 (for example, three)
  • the plurality of indented light exiting faces 12 may be uniformly arranged around the center line of the hollow portion 11 in the circumferential direction, for example, and each of the trapped light beams is trapped.
  • the angle between the center line of the face 12 and the center line of the hollow portion 11 is preferably equal.
  • the substantially light-emitting surface 14 of the lens body 1 (i.e., the outer surface of the lens body 1) includes a first light-emitting surface 141 surrounding the opening 121 of the invading light surface 12 and an opening 115 surrounding the hollow portion 11.
  • the second light-emitting surface 142, the first light-emitting surface 141 is offset inwardly relative to the second light-emitting surface 142, so as to form a stepped surface 143 therebetween, wherein the stepped surface may be a plane, a slope or a partial protrusion.
  • the opening edge of the lens cover 2 is engaged with the step surface 143 such that the second light-emitting surface 142 (i.e., the portion of the substantially light-emitting surface that is not surrounded by the lens cover 2) is joined to the outer surface of the lens cover 2 Smooth transitions, which facilitate the formation of a smooth exit surface or cover surface.
  • the first and second light-emitting surfaces 141, 142 may be part of a spherical surface, and the first and second light-emitting surfaces 141, 142 are concentric.
  • the boundary plane is the first and second light-emitting surfaces. A plane formed by the outer edge of the step surface 143, as shown in FIG.
  • the entire step surface 143 can be, but is not limited to, located on the boundary plane, the lens cover 2 can be designed as a hemispherical outer casing;
  • Example 3 in addition to the first embodiment or the second embodiment, if the boundary plane between the first and second light-emitting surfaces is perpendicular to the center line of the hollow portion 11, even if the transparent cover 2 has other shapes, the present invention can be used.
  • the light guide lens of the utility model is a standard rotary body in appearance. Under the conditions satisfying the first, second, and third embodiments, as shown in FIG. 4, the height of the second light-emitting surface 142 (the distance between the opening 115 of the hollow portion 11 and the boundary plane) is preferably equal to or greater than the radius of the spherical surface.
  • the maximum height of the hollow portion 11 is preferably greater than the height of the second light-emitting surface 142 so as to extend into a portion of the lens body 1 surrounded by the first light-emitting surface 141, In this way, the incident light emitted by the LED illuminator can be largely collected into the light guiding lens, and the distance that the incident light needs to pass through the lens can be reduced, and the light loss can be reduced.
  • the person skilled in the art can adjust according to the LED illuminator used.
  • the height of the first light-emitting surface 141 (infrared light)
  • the distance between the opening 121 of the surface 12 and the boundary plane may be greater than or equal to 1/2 of the radius of the spherical surface forming the second light-emitting surface 142; in addition, the maximum height of the recessed light-emitting surface 12 may be less than or equal to the height of the first light-emitting surface 141. 1/2, and the minimum distance between the hollow portion 11 and the invading light exit surface 12 may be less than or equal to 1/2 of the height of the first light exit surface 141.
  • the lens cover 2 may be a spherical shell having an inner surface and an outer surface having diameters equal to the diameters of the first and second light-emitting surfaces 141, 142, respectively, such that the first light-emitting surface 141 is completely integral with the lens cover 2 when engaged.
  • the surface is bonded to each other, and the light-emitting surface of the LED light guiding lens (including the outer surface of the lens cover 2 and the second light-emitting surface 142) is spherical.
  • the LED light guide lens having the above technical features is used in place of the outer casing of the LED light bulb, the LED light bulb of the present invention can have the same appearance shape as the currently used LED bulb.
  • the light-emitting surface of the LED light guiding lens of the present invention is designed to be larger than 50% of the spherical surface (the shape of the outer casing of the conventional bulb is conventionally hemispherical), the light-emitting angle of more than 150 degrees can be obtained; It can be seen that if the illuminating surface is designed to be 80% or more of the spherical surface, an exit angle of more than 300 degrees can be obtained, and thus it can be seen that the light guiding lens of this shape has a strong advantage over the conventional single lenticular lens.
  • a person skilled in the art can adjust the ratio of the light-emitting surface of the LED light guiding lens to the complete spherical surface according to the diameter of the heat-dissipating body supporting the LED light-emitting body according to a conventional method; and adjust the sphere forming the second light-emitting surface 142 according to the size of the heat sink and the power size. diameter of.
  • the shape of the lens cover 2 may be a candle-type lamp cover (the candle-type lamp cover is a special term in the field of illumination, the shape of which is determinable in the field), and thus, if utilized
  • the LED light guiding lens having the technical feature can replace the outer casing of the LED light bulb, so that the LED light bulb of the present invention has the same appearance shape as the currently used LED candle light.
  • the transparent cover 2 is in the shape of a candle-shaped lamp cover, it is preferable that the boundary plane between the first and second light-emitting surfaces is perpendicular to the center line of the hollow portion 11.
  • LED light guide lens For a larger size LED light guide lens, it is suitable for replacing the traditional cover of the LED light bulb, and is used both as a cover and as a light guide lens, for example, instead of a small bulb or a candle lamp having a diameter of 45 mm or less, for example, for example, 7a and 7b; for a smaller size, especially spherical LED light guide lens, it can be used instead of a monocular lens such as a transparent bulb or a candle lamp with a diameter of 50 mm or more to obtain a larger
  • the illumination angle is specifically shown in Fig. 8.
  • the hollow portion 11 may include a first hollow portion 111 forming an opening 115 of the hollow portion and a second hollow portion 112 receiving the first hollow portion, the second hollow portion 112 being opposite to the first hollow portion
  • the portion 111 is offset inwardly in a direction perpendicular to the center line of the hollow portion to form an inner stepped surface 113 therebetween.
  • the inner step protrudes in the direction of the opening 115 for engaging with the card slot on the heat sink.
  • the card slot 5 on the heat dissipating body is generally a ring-shaped annular card slot disposed around the LED illuminating body, so that the accommodating member 114 can also be The matching snap ring is fast for a plurality of matching cards; and as shown in FIG. 10, another form of the card slot 5 of the heat sink is, for example, two bayonet ports disposed around the LED illuminator. Then, the card loading member 114 is a card block corresponding to the bayonet one-to-one correspondence. As shown in FIG. 9, the card assembly 114 is inserted into the circular ring groove 5 of the heat sink carrying the LED illuminator, and is glued and fixed, thereby completing the main assembly and fixing steps of the LED bulb of the present invention. .

Abstract

L'invention concerne une lentille de guidage de lumière à DEL comprenant un corps de lentille (1) et un couvercle de lentille (2). Le corps de lentille (1) est pourvu d'une partie creuse concave (11) utilisée pour contenir un luminaire à DEL. La surface intérieure de la partie creuse (11) est une surface d'incidence de la lumière de la lentille de guidage de lumière à DEL ; le corps de lentille (1) est également pourvu d'une surface d'émission de lumière concave (12). Le couvercle de lentille (2) est joint avec la surface extérieure servant de surface d'émission de lumière de base du corps de lentille (1), de sorte que le couvercle de lentille (2) enveloppe la surface d'émission de lumière concave (12). La surface extérieure du couvercle de lentille (2) et une partie de la surface d'émission de lumière de base du corps de lentille (1) qui n'est pas enveloppée par le couvercle de lentille (2) sont fournies en tant que surface d'émission de lumière de la lentille de guidage de lumière à DEL. La lentille de guidage de lumière à DEL n'est pas seulement fournie dans une ampoule à DEL classique sous la forme d'une lentille de guidage de lumière à DEL, mais remplace également un couvercle de lampe d'une ampoule à DEL classique. La lentille de guidage de lumière à DEL permet d'intégrer ensemble une lentille de guidage de lumière et un couvercle de lampe, simplifie l'installation d'une ampoule à DEL, obtient un angle d'éclairage plus grand et bénéficie du rayonnement de la lampe à DEL.
PCT/CN2012/071911 2012-03-05 2012-03-05 Lentille de guidage de lumière à del WO2013131227A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/071911 WO2013131227A1 (fr) 2012-03-05 2012-03-05 Lentille de guidage de lumière à del

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/071911 WO2013131227A1 (fr) 2012-03-05 2012-03-05 Lentille de guidage de lumière à del

Publications (1)

Publication Number Publication Date
WO2013131227A1 true WO2013131227A1 (fr) 2013-09-12

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Application Number Title Priority Date Filing Date
PCT/CN2012/071911 WO2013131227A1 (fr) 2012-03-05 2012-03-05 Lentille de guidage de lumière à del

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WO (1) WO2013131227A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2520345A (en) * 2013-11-19 2015-05-20 Kosnic Uk Ltd LED lighting apparatus
WO2017182572A1 (fr) * 2016-04-22 2017-10-26 Philips Lighting Holding B.V. Dispositif d'éclairage et luminaire qui le contient
CN108087841A (zh) * 2018-02-14 2018-05-29 李鹤荣 一种导光中空透镜以及led灯珠

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CN201330993Y (zh) * 2008-12-18 2009-10-21 苏州力创科技有限公司 一种可均匀导光的led导光透镜结构
CN201383501Y (zh) * 2008-11-17 2010-01-13 深圳市深华龙科技实业有限公司 Led二次光学透镜装置
CN101639197A (zh) * 2009-08-24 2010-02-03 深圳市九拓光电有限公司 一种发光二极管透镜、照明装置和背光装置
JP2011077214A (ja) * 2009-09-30 2011-04-14 Okaya Electric Industries Co Ltd Ｌｅｄランプ
CN201983199U (zh) * 2011-01-17 2011-09-21 赖日旺 用于led灯的光学装置
KR101071859B1 (ko) * 2011-04-19 2011-10-11 한빔 주식회사 직관형 ｌｅｄ조명등

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Publication number Priority date Publication date Assignee Title
CN201383501Y (zh) * 2008-11-17 2010-01-13 深圳市深华龙科技实业有限公司 Led二次光学透镜装置
CN201330993Y (zh) * 2008-12-18 2009-10-21 苏州力创科技有限公司 一种可均匀导光的led导光透镜结构
CN101639197A (zh) * 2009-08-24 2010-02-03 深圳市九拓光电有限公司 一种发光二极管透镜、照明装置和背光装置
JP2011077214A (ja) * 2009-09-30 2011-04-14 Okaya Electric Industries Co Ltd Ｌｅｄランプ
CN201983199U (zh) * 2011-01-17 2011-09-21 赖日旺 用于led灯的光学装置
KR101071859B1 (ko) * 2011-04-19 2011-10-11 한빔 주식회사 직관형 ｌｅｄ조명등

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2520345A (en) * 2013-11-19 2015-05-20 Kosnic Uk Ltd LED lighting apparatus
WO2017182572A1 (fr) * 2016-04-22 2017-10-26 Philips Lighting Holding B.V. Dispositif d'éclairage et luminaire qui le contient
US10436393B2 (en) 2016-04-22 2019-10-08 Signify Holding B.V. Lighting device and luminaire comprising the same
CN108087841A (zh) * 2018-02-14 2018-05-29 李鹤荣 一种导光中空透镜以及led灯珠
CN108087841B (zh) * 2018-02-14 2020-11-24 李鹤荣 一种导光中空透镜以及led灯珠

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