WO2015119487A1 - Lentille à diodes électroluminescentes de type à émission latérale - Google Patents

Lentille à diodes électroluminescentes de type à émission latérale Download PDF

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Publication number
WO2015119487A1
WO2015119487A1 PCT/KR2015/001356 KR2015001356W WO2015119487A1 WO 2015119487 A1 WO2015119487 A1 WO 2015119487A1 KR 2015001356 W KR2015001356 W KR 2015001356W WO 2015119487 A1 WO2015119487 A1 WO 2015119487A1
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WO
WIPO (PCT)
Prior art keywords
incident
light
led
region
lens
Prior art date
Application number
PCT/KR2015/001356
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English (en)
Korean (ko)
Inventor
김성빈
김병욱
이문재
정재유
Original Assignee
주식회사 애니캐스팅
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.)
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Publication date
Application filed by 주식회사 애니캐스팅 filed Critical 주식회사 애니캐스팅
Priority claimed from KR1020150020532A external-priority patent/KR20150094550A/ko
Publication of WO2015119487A1 publication Critical patent/WO2015119487A1/fr

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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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • 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
    • G02B19/0071—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source adapted to illuminate a complete hemisphere or a plane extending 360 degrees around the source
    • 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 a side emitting type LED lens that emits light emitted from the LED to the side.
  • a display device used as a computer monitor or TV is provided with a liquid crystal display (LCD). Since the liquid crystal display does not emit light by itself, a separate light source is required. .
  • LCD liquid crystal display
  • a light source for a liquid crystal display a plurality of fluorescent lamps such as a Cold Cathode Fluorescent Lamp (CCFL) and an External Electrode Fluorescent Lamp (EEFL) are used, or a plurality of LEDs (Light Emitting Diodes) are used.
  • the light source is provided with a light guide plate, a plurality of optical sheets, a reflecting plate, and the like in a back light unit (BLU).
  • BLU back light unit
  • LEDs are attracting attention as next-generation light sources because they consume less power, have good durability, and can reduce manufacturing costs.
  • the LED when used as a light source, the light tends to concentrate in a narrow area and diverge, and in order to apply it to a surface light source such as a display device, it is necessary to distribute the light evenly over a wide area.
  • Korean Patent No. 10-1299528 filed and filed by the present applicant, discloses a "lens for a side-emitting light emitting diode, a backlight unit and a display device having the same" (hereinafter, "prior art” Is referred to.
  • the side emitting type LED lens according to the related art has an advantage of reducing the total volume of the lens.
  • the edge portion of the display panel, that is, the edge portion is smaller than the center portion. There is a problem of brightening.
  • the present invention is to solve the problem with the side-emitting type LED lens according to the prior art (Korean Patent No. 10-1299528), the phenomenon that the edge portion of the display panel is brighter than the center portion and occurs between the edge portion and the center portion. It provides a side emitting type LED lens that can improve the color deviation.
  • the lens for side-emitting type LED is a bottom surface provided with an incident surface for the light emitted from the LED is incident; An upper surface which totally reflects light that is directly incident among the light incident on the incident surface; A side from which light directly incident and light totally reflected from the upper surface of the light incident on the incident surface exit; And a corroded surface formed on the side surface, wherein the corroded surface may be formed in a partial region of at least two divided regions in a direction perpendicular to the side surface.
  • the edge portion on the display panel of the display device having the lens according to the present invention can be improved from being brighter than the center portion, and at the same time, the color distribution of the light emitted from the side is evenly generated to generate the edge portion between the edge portion and the center portion of the panel.
  • the color deviation can be improved.
  • the at least two or more regions are sequentially divided into a first region, a second region, a third region, and a fourth region from the upper side of the side surface
  • the corrosion surface may be formed in the first region and the second region, or may be formed in any one of the first region and the second region, and in any one of the third region and the fourth region.
  • the lens for an LED is a bottom surface provided with an incident surface for the light emitted from the LED is incident; An upper surface which totally reflects light that is directly incident among the light incident on the incident surface; A side from which light directly incident and light totally reflected from the upper surface of the light incident on the incident surface exit; A connection surface connecting the upper surface and the side surface; And a corrosion surface formed on the connection surface.
  • connection surface that is, the phenomenon that the upper part of the lens on the panel is brightly illuminated.
  • the edge of the display panel may be brighter than the center portion. At the same time, there is an effect to improve the color deviation that occurs between the edge and the center.
  • the lens for side-emitting type LED according to the present invention forms a connection surface connecting the upper surface and the side to facilitate the production, and at the same time to form a corrosion surface on the connection surface by the lens on the panel by the connection surface There is an effect that can prevent the phenomenon that the upper portion becomes brighter than the surroundings.
  • FIG. 1 is a vertical cross-sectional view showing an LED lens for side emission according to the present invention
  • FIGS. 2 and 3 are views for explaining the effect that the lens according to the present invention can reduce the total volume by the configuration of the center region and the peripheral region of the incident surface
  • FIGS. 5 to 9 are views illustrating various embodiments of a formation region of a corrosion surface.
  • FIG. 10 is a vertical cross-sectional view showing an LED lens for side emission according to another embodiment of the present invention.
  • FIG. 11 is a view showing a light distribution on a reflective sheet in a display device with a lens according to the present embodiment
  • FIG. 12 is a view showing a light distribution on a panel of the display device.
  • FIG. 13 is a plan view schematically illustrating a state in which a corrosion surface is formed on a connection surface
  • FIG. 14 is a view illustrating a light distribution on a reflective sheet in a display device having a lens having a corrosion surface formed on a connection surface
  • FIG. 15 is a view showing a light distribution on a panel of the display device.
  • FIG. 1 is a vertical cross-sectional view showing a side lens for emitting LED lens according to an embodiment of the present invention.
  • a light emitting diode (LED) lens 10 for side emission includes a bottom surface 20, an upper surface 30, and a bottom surface 20 and an upper surface 30. Side 40 for connecting.
  • the lens 10 according to the present invention may further include a leg 50 extending downward from a predetermined position of the bottom surface 20 to support the lens 10.
  • the bottom surface 20 is provided with an incident surface 100 through which light emitted from the LED 11 is incident, and the incident surface 100 may be formed as an inner surface of the groove portion 21 formed at the center of the bottom surface 20.
  • the incident surface 100 includes an upper incident surface 110 for injecting light L1 and L2 emitted within a predetermined angle range with respect to the optical axis 12 among the light emitted from the LED 11 to the upper surface 30.
  • a side incident surface 120 for injecting light (L3) other than the light incident on the upper incident surface 110 to the side surface 40 is made of the light emitted from the LED 11 .
  • the upper incidence surface 110 includes the LED 11 optical axis 12 and the center region 112 for refracting the light emitted from the LED 11 in a direction away from the optical axis 12 to enter the upper surface 30.
  • a peripheral region 114 connected to the central region 112 and refracting light emitted from the LED 11 toward the optical axis 12 to be incident on the upper surface 30.
  • the central region 112 is a direction away from the optical axis 12 of the light L1 near the optical axis 12 among the light emitted from the LED 11, that is, the light L1 emitted to the center of the upper incident surface 110. And the light is incident on the upper surface 30, and the peripheral region 114 is closer to the optical axis 12 with light L2 emitted to the periphery of the upper incident surface 110 among the light emitted from the LED 11. Is refracted in the direction to enter the upper surface 30.
  • the side incident surface 120 connects the peripheral area 114 and the bottom surface 20 and refracts the light L3 incident to the upper incident surface 110 to enter the side surface 40.
  • the height H of the lens 10 can be reduced by the center region 112, and the width of the lens 10 by the peripheral region 114. (W) can be reduced. Detailed description thereof will be described later.
  • the upper surface 30 is formed symmetrically with respect to the optical axis 12 of the LED 11 and is incident on the upper incidence surface 110 of the incident surface 100 and then refracted to directly enter the upper surface 30 ( L1 and L2 are optically totally reflected, and the side surface 40 is the light totally reflected from the upper surface 30 and the light incident on the side incident surface 120 is refracted and then directly enters the side surface (L3). ) Is emitted to the outside of the lens 10.
  • the side surface 40 may be formed in a shape inclined downward by a predetermined angle ⁇ toward the lower side.
  • the side surface 40 may be formed of an inclined surface that opens at a predetermined slope toward the upper direction based on the optical axis 12 of the LED 11 or may have a shape curved downward.
  • LED lens 10 is a transparent material having excellent transmittance such as glass, acrylic (Methylmethacrylate), PMMA (Polymethylmethacrylate), PC (Polycarbonate), PET (Poly Ethylen Terephthalate) PET by injection molding (injection molding) It can be manufactured in one-body.
  • acrylic Metalmethacrylate
  • PMMA Polymethylmethacrylate
  • PC Polycarbonate
  • PET Poly Ethylen Terephthalate PET by injection molding (injection molding) It can be manufactured in one-body.
  • FIG. 2 is a view for explaining the configuration and operation of the central region.
  • the angle formed with the optical axis 12 becomes larger when such light L1 is incident on the upper surface 30. Accordingly, the inclination of the upper surface 30 for total reflection of the light L1 may be small.
  • the central region 112 is thus directed downward toward the further away from the optical axis 12 in order to deflect the light L1 incident at an arbitrary point P4 on the central region 112 in a direction away from the optical axis 12. It may be inclined in a direction away from the optical axis 12, in this case, the intersection point P5 of the central region 112 and the peripheral region 114 is the lowest end of the central region 112.
  • the central region 112 may be formed as a curve having a peak point at the optical axis 12 on the vertical cross section, and in another embodiment, a straight line inclined downward by a predetermined angle, a convex shape downward or upward. It may also be made in a convex shape.
  • an arbitrary inflection point P6 may exist on the central region 112 so that the central region 112 may be formed in the form of a smooth curve at the intersection point P5.
  • FIG. 3 is a view for explaining the configuration and operation of the peripheral region.
  • the direction in which the light L2 incident on the peripheral region 114 of the incident surface 100 at an arbitrary point P7 on the peripheral region 114 approaches the optical axis 12 (arrow direction).
  • the light L2 is closer to the optical axis 12 when the light L2 is incident on the upper surface 30, thereby reducing the width (or radius) of the lens 10. It becomes possible.
  • the point where the light L8 incident to the edge end point P8 of the peripheral region 114 is refracted at the end point P8 and enters the image surface 30 is the top surface 30 of the lens 10 according to the present invention.
  • the corner end point of the upper surface 30 is P9 'to P9.
  • the movement may reduce the width of the lens 10 by approximately W. Therefore, as the peripheral region 114 refracts more light L2 incident at an arbitrary point P7 of the peripheral region 114 in the direction closer to the optical axis 12, the width of the lens 10 is further reduced. In particular, the greater the angle of refraction toward the edge of the peripheral region 114, the more directly the width of the lens 10 can be reduced.
  • the peripheral region 114 is thus upwardly further away from the optical axis 12 in order to refract the light L2 incident at an arbitrary point P7 on the central region 114 in a direction closer to the optical axis 12.
  • the peripheral region 114 may be formed in a curved upward direction as it moves away from the optical axis 12 on a vertical cross section, and in another embodiment, a straight or downwardly convex shape inclined upward at a predetermined angle. It may also be made.
  • the peripheral area 114 may be formed in a shape in which the slope of the tangent increases toward the edge. As such, when the edge of the peripheral area 114 increases in the upward direction, that is, the slope of the tangent increases. In this case, the angle of refraction toward the optical axis 12 at the end point P8 of the peripheral region 114 is the maximum, and thus the width of the lens 10 can be directly reduced to the maximum.
  • the LED lens 10 according to the present invention further includes a corrosion surface 200 formed on the side surface 40.
  • Corrosion surface 200 may be formed by a corrosion treatment.
  • the corrosion treatment may be formed by using chemical corrosion on the mold core used in injection molding of the lens 10 or by applying sanding corrosion.
  • the corrosion surface 200 when the corrosion surface 200 is formed on the side surface 40, light emitted to the side surface 40 is scattered by the corrosion surface 200, thereby improving the phenomenon that the edge of the display panel, that is, the edge portion is brighter than the center portion. can do.
  • the corrosion surface 200 is formed on the entire side surface 40, the phenomenon that the edge portion of the panel becomes brighter than the center portion may be significantly reduced, but a problem of deterioration of light uniformity in the center portion occurs.
  • the lens 10 according to the present invention distributes the light emitted from the LED 11 to the side 40 (for example, the angle of the light emitted to the side 40, the upper portion of the side 40).
  • the uniformity of light in the display panel varies according to the amount of light emitted to the bottom and the bottom, the overall size of the display panel, the number of lenses 10 included in the display device, the optical distance (OD), and the like.
  • the OD distance is a distance that the light emitted from the LED 11 reaches the display panel, and is an important factor that determines the thickness of the display device.
  • the OD distance is disposed on the reflective plate and the upper part of the display device. The distance to the diffuser is provided.
  • the lens 10 according to the present invention emits the light from the LED 11 to the side 40, not all the light is directed only to the edge of the display panel, a plurality of LEDs are provided in the display device Since the reflective sheet is provided under the display device and the diffuser is provided above the display device, even if the lens 10 according to the present invention emits light emitted from the LED 11 to the side surface 40, the reflective sheet is provided.
  • the light diffuser can uniformly illuminate the display panel by means of a diffuser.
  • the corrosion surface 200 is divided into at least two regions in the vertical direction of the side surface 40. It is preferable to selectively form in some of the regions.
  • the corrosion surface 200 is selectively formed in a portion of the side surface 40 as described above, not only the edge of the display panel may be brighter than the center portion, but also the color generated between the edge portion and the center portion may be improved. Deviation can also be improved. This will be described in detail below.
  • FIGS. 5 to 9 are views illustrating various embodiments of a formation region of a corrosion surface.
  • the at least two or more regions are sequentially formed in the first region 42, the second region 43, and the third region from the top to the bottom of the side surface 40. 45, it is divided roughly equally into the 4th area
  • the color distribution of the light emitted to the side surface 40 is measured when the corrosion surface 200 is not formed at all on the side surface 40 (A), and the first region 42 and the second region.
  • the first region 42 and the second region When formed only in (43) (B, Fig. 5), when formed only in the first region 42 and the fourth region 47 (C, Fig. 6), the first region 42 and the third region 45 ) Only in the second region 43 and the fourth region 47 (E, FIG. 8), only in the second region 43 and the third region 45.
  • Each case was formed (F, Fig. 9), and the measurement results are shown in the table below.
  • the B value is the light quantity value of the blue wavelength in each region
  • the Y value is the light quantity value of the yellow wavelength
  • the B / Y value is the Y value divided by the B value.
  • the lens 10 according to the present invention exhibits a large color deviation when the corrosion surface 200 is not formed on the side surface 40. yellow tends to be strong.
  • the corrosion surface 200 is formed in all of the first to fourth regions, that is, the entire side surface 40, the color distribution of the light emitted to the side surface 40 may be uniform.
  • the problem of deterioration of light uniformity at the center of the panel is not preferable because of the overall light distribution of the panel.
  • the corrosion surface 200 is formed only in the third region 45 and the fourth region 47, the color distribution of the light emitted to the side surface 40 can be made even, In this case, there is a limit in improving the phenomenon that the edge portion on the panel becomes brighter than the center portion. Because, in the lens 10 according to the present invention, the light from the LED 11 is mainly totally reflected on the upper surface 30 is emitted to the side surface 40, the light totally reflected from the upper surface 30 in this way ( Since the light exits outside the lens 10 through the first region 42 and the second region 43 of 40, the corrosion surface 200 is formed only in the third region 45 and the fourth region 47. This is because there is a limit in improving the phenomenon that the edge portion on the panel is brighter than the center portion.
  • the corroded surface 200 is formed in the first region 42 and the second region 43, or among the first region 42 and the second region 43. It may be desirable to be formed in any one of the regions, and any one of the third region 45 and the fourth region 47.
  • FIG. 10 is a vertical cross-sectional view showing an LED lens for side emission according to another embodiment of the present invention.
  • the LED lens 10 according to the present embodiment further includes a connection surface 70 connecting the upper surface 30 and the side surface 40 as compared with the above embodiment.
  • connection surface 70 may be configured to have a substantially flat shape.
  • connection surface 70 having a substantially flat shape is provided as described above, the manufacturing of the lens 10 may be smoothly performed.
  • the upper surface 30 of the lens 10 according to the present invention is configured to totally reflect the incident light to the side surface 40, when the upper surface 30 is directly connected to the side surface 40, the connection portion is pointed. This can only be made, which causes a number of defects in the lens 10 injection molding.
  • the connecting portion 70 having a substantially flat shape when the connecting surface 70 having a substantially flat shape is interposed between the upper surface 30 and the side surface 40, the connecting portion can be prevented from being sharpened, so that the The production will be smooth.
  • connection surface 70 of the substantially flat form connecting the upper surface 30 and the side surface 40 when configured, the light incident on the connection surface 70 is total reflection to the side surface 40 This can adversely affect the light distribution on the display panel, which will be described in detail.
  • FIG. 11 is a view showing a light distribution on a reflective sheet in a display device with a lens according to the present embodiment
  • FIG. 12 is a view showing a light distribution on a panel of the display device.
  • the light distribution on the reflective sheet can be seen that a circular bright band 72 occurs around the lens 10 according to the present embodiment, which is connected to the connection surface 70. This is because the incident light is reflected by the reflective sheet without being totally reflected and then incident directly onto the lens 10 on the panel.
  • the lens 10 according to the present embodiment in the case of further comprising a connecting surface 70 connecting the upper surface 30 and the side surface 40, such as the above generated by the connecting surface 70 It is necessary to solve the problem, and as shown in FIG. 13, the lens 10 according to the present exemplary embodiment may solve the problem by forming the corrosion surface 200 on the connection surface 70.
  • FIG. 14 is a view illustrating a light distribution on a reflective sheet in a display device having a lens having a corrosion surface formed on a connection surface
  • FIG. 15 is a view showing a light distribution on a panel of the display device.
  • the lens 10 according to the present invention further includes a connection surface 70 having a substantially flat shape connecting the upper surface 30 and the side surface 40, and at the same time, the corrosion surface 200 is connected to the connection surface 70.
  • a connection surface 70 having a substantially flat shape connecting the upper surface 30 and the side surface 40, and at the same time, the corrosion surface 200 is connected to the connection surface 70.
  • the present invention is to solve the problem of the side-emitting LED lens according to the prior art (Korean Patent No. 10-1299528), and the phenomenon that the edge portion of the display panel is brighter than the center
  • the present invention relates to a side emitting type LED lens capable of improving color deviation occurring between an edge portion and a center portion, and embodiments thereof may be modified in various forms. Therefore, the present invention is not limited to the embodiments disclosed in the present specification, and all forms changeable by those skilled in the art to which the present invention pertains will belong to the scope of the present invention.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Led Device Packages (AREA)

Abstract

La présente invention concerne une lentille à DEL de type à émission latérale qui émet latéralement la lumière émise par des DEL. Selon un mode de réalisation de l'invention, ladite lentille à DEL de type à émission latérale comprend : une surface de base pourvue d'un plan d'incidence sur lequel est projetée en incidence la lumière émise par les LED ; une surface supérieure conçue pour réfléchir totalement une lumière incidente directe parmi les lumières incidentes sur le plan d'incidence ; une surface latérale sur laquelle sont émises la lumière totalement réfléchie sur la surface supérieure et la lumière incidente directe parmi les lumières incidentes sur le plan d'incidence ; et une surface de la corrosion formée sur la surface latérale, ladite surface de corrosion pouvant être formée dans une zone partielle parmi au moins deux zones formées sur la surface latérale dans une direction verticale.
PCT/KR2015/001356 2014-02-10 2015-02-10 Lentille à diodes électroluminescentes de type à émission latérale WO2015119487A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20140015173 2014-02-10
KR10-2014-0015173 2014-02-10
KR10-2015-0020532 2015-02-10
KR1020150020532A KR20150094550A (ko) 2014-02-10 2015-02-10 측면 방출형 엘이디 렌즈

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WO2015119487A1 true WO2015119487A1 (fr) 2015-08-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105627251A (zh) * 2015-11-30 2016-06-01 中山大学 一种兼容性路灯透镜

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110138966A (ko) * 2010-06-22 2011-12-28 엘지디스플레이 주식회사 발광다이오드 및 이의 제조방법
KR101160648B1 (ko) * 2010-03-18 2012-06-29 (주)보임기술 균일한 배광분포를 가지는 ｌｅｄ 조명 렌즈
KR101299528B1 (ko) * 2012-12-18 2013-08-23 (주)애니캐스팅 측면 방출형 발광다이오드용 렌즈, 이를 구비하는 백라이트유닛 및 표시장치
KR101322890B1 (ko) * 2013-01-30 2013-10-29 (주)애니캐스팅 측면 방출형 발광다이오드용 렌즈, 이를 구비하는 백라이트유닛 및 표시장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101160648B1 (ko) * 2010-03-18 2012-06-29 (주)보임기술 균일한 배광분포를 가지는 ｌｅｄ 조명 렌즈
KR20110138966A (ko) * 2010-06-22 2011-12-28 엘지디스플레이 주식회사 발광다이오드 및 이의 제조방법
KR101299528B1 (ko) * 2012-12-18 2013-08-23 (주)애니캐스팅 측면 방출형 발광다이오드용 렌즈, 이를 구비하는 백라이트유닛 및 표시장치
KR101322890B1 (ko) * 2013-01-30 2013-10-29 (주)애니캐스팅 측면 방출형 발광다이오드용 렌즈, 이를 구비하는 백라이트유닛 및 표시장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105627251A (zh) * 2015-11-30 2016-06-01 中山大学 一种兼容性路灯透镜

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