WO2022181091A1 - Lentille d'éclairage, dispositif d'éclairage et système d'éclairage - Google Patents

Lentille d'éclairage, dispositif d'éclairage et système d'éclairage Download PDF

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Publication number
WO2022181091A1
WO2022181091A1 PCT/JP2022/000762 JP2022000762W WO2022181091A1 WO 2022181091 A1 WO2022181091 A1 WO 2022181091A1 JP 2022000762 W JP2022000762 W JP 2022000762W WO 2022181091 A1 WO2022181091 A1 WO 2022181091A1
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WO
WIPO (PCT)
Prior art keywords
light
regions
illumination
road
lane
Prior art date
Application number
PCT/JP2022/000762
Other languages
English (en)
Japanese (ja)
Inventor
孝司 松田
大貴 杉原
和政 高田
Original Assignee
パナソニックＩｐマネジメント株式会社
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 パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN202280015430.3A priority Critical patent/CN116888403A/zh
Priority to JP2023502149A priority patent/JPWO2022181091A1/ja
Publication of WO2022181091A1 publication Critical patent/WO2022181091A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • 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
    • 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
    • F21V5/08—Refractors for light sources producing an asymmetric light distribution
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • 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 lighting lenses, lighting devices, and lighting systems.
  • LEDs Light Emitting Diodes
  • Patent Document 1 discloses a light distribution control lens used for a lamp (lighting device).
  • the light distribution control lens of Patent Literature 1 in a lighting device using an LED as a light source, the irradiation range of the lighting device can be widened.
  • the installation interval of the lighting devices can be widened, and the installation cost of the lighting devices can be suppressed.
  • An illuminating lens is an illuminating lens used in an illuminating device installed on a road, and the illuminating lens has a front direction parallel to the traveling direction of the road.
  • an incident surface that is arranged to be perpendicular to a direction and receives light emitted from a light source; an output surface that emits the light that has entered the incident surface; and a first region formed on at least one of the incident surface and the exit surface, and the incident light so as to irradiate light diffused more than the first light on the side opposite to the traveling direction of the road. and a second region formed on at least one of the surface and the exit surface.
  • FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment;
  • FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment;
  • FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment;
  • FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment;
  • FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment;
  • FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment;
  • FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment;
  • FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment;
  • FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment;
  • FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment;
  • the top view which shows the arrangement
  • the front view which shows the other example of the lens for illumination which concerns on this embodiment.
  • the perspective view which shows the other example of the lens for illumination which concerns on this embodiment.
  • FIG. 15 is a cross-sectional view of an illumination device using the illumination lens of FIG. 14;
  • the top view which shows the illumination intensity distribution by the other example of the lens for illumination which concerns on this embodiment.
  • the top view which shows the illumination intensity distribution by the other example of the lens for illumination which concerns on this embodiment.
  • the top view which shows the illumination intensity distribution by the other example of the lens for illumination which concerns on this embodiment.
  • the side view which shows the light ray irradiated from the lens for illumination which concerns on this embodiment.
  • the embodiments of the present invention aim to suppress glare while widening the irradiation range of the lighting device.
  • FIG. 1 shows a front view of the illumination lens according to this embodiment
  • FIG. 2 shows a side view of the illumination lens according to this embodiment
  • FIG. 3 shows a perspective view of the illumination lens according to this embodiment.
  • FIG. 4 is a side view showing rays emitted from the illumination lens according to this embodiment.
  • the X direction is a direction parallel to the traveling direction of the road 21, which will be described later
  • the Y direction is the front direction of the illumination lens 1
  • the Z direction is the vertical direction perpendicular to the X and Y directions. show.
  • the light rays emitted from the illumination lens 1 are indicated by dashed lines.
  • the illumination lens 1 is made of a transparent material that refracts light, and receives light emitted from a light source 11 having a light emitting element such as an LED (Light Emitting Diode). Diffuse in the X direction.
  • a light source 11 having a light emitting element such as an LED (Light Emitting Diode). Diffuse in the X direction.
  • LED Light Emitting Diode
  • the illumination lens 1 includes an entrance surface 2 that receives light emitted from the light source 11 and an exit surface 3 that emits the light that has entered the entrance surface 2 .
  • the incident surface 2 is formed in a concave shape so as to cover the light source 11 .
  • the exit surface 3 is formed in a convex shape at a position facing the entrance surface 2 . 1 to 4, for convenience, the light source 11 is arranged so as to coincide with the center point of the illumination lens 1 when the illumination lens 1 is viewed from the Y direction. do not have.
  • regions 2 a to 2 d are formed on the incident surface 2 .
  • the region 2a is formed on the left side of the axis Z1 and above the axis X1.
  • region 2b is formed on the right side of axis Z1 and above axis X1
  • region 2c is formed on the left side of axis Z1 and below axis X1
  • region 2d is formed on the right side of axis Z1 and below axis X1.
  • the areas 2a, 2b are bounded by the axis Z1
  • the areas 2c, 2d are bounded by the axis Z1.
  • Regions 2a, 2c are delimited by axis X1
  • regions 2b, 2d are delimited by axis X1.
  • the incident surface 2 is formed to be an asymmetrical curved surface with respect to the axis Z1, and is also formed to be an asymmetrical curved surface with respect to the axis X1.
  • the curved surfaces of the regions 2a, 2c and the regions 2b, 2d are asymmetrical
  • the curved surfaces of the regions 2a, 2b and the regions 2c, 2d are asymmetrical.
  • areas 3a to 3d are formed on the emission surface 3.
  • region 3a is formed to the left of axis Z1 and above axis X1
  • region 3b is formed to the right of axis Z1 and above axis X1
  • region 3c is formed to the left of axis Z1 and below axis X1.
  • a region 3d is formed to the right of axis Z1 and below axis X1. That is, the areas 3a, 3b are bounded by the axis Z1, and the areas 3c, 3d are bounded by the axis Z1.
  • Regions 3a, 3c are delimited by axis X1 and regions 3b, 3d are delimited by axis X1.
  • the exit surface 3 is formed to be an asymmetrical curved surface with respect to the axis Z1, and is also formed to be an asymmetrical curved surface with respect to the axis X1.
  • the curved surfaces of the regions 3a, 3c and the regions 3b, 3d are asymmetrical
  • the curved surfaces of the regions 3a, 3b and the regions 3c, 3d are asymmetrical.
  • intersection of the axes Z1 and X1 is set as the central point of the illumination lens 1 for convenience, but this intersection can be set arbitrarily.
  • the illumination lens 1 has a light distribution in the regions 3a and 3b (2a and 2b) with respect to an axis Y1 passing through the center point of the illumination lens 1 and extending along the Y axis. It is asymmetrical.
  • incident surface 2 includes area 2a and area 2b.
  • Output surface 3 includes regions 3a and 3b.
  • the first light 15 enters the region 2a and exits from the region 3a.
  • the second light 16 enters region 2b and exits from region 3b.
  • the first light 15 is, for example, parallel light.
  • the first light 15 includes a light beam 15a and a light beam 15b parallel to the light beam 15a.
  • the second light 16 is more diffuse than the first light 15 .
  • the second light 16 includes a light beam 16a and a light beam 16b non-parallel to the light beam 16a.
  • the second light 16 is condensed at a point 16c after being emitted from the region 3b, and then diffused.
  • the present disclosure is not limited to this, and the second light 16 may be diffused without being condensed.
  • the first light 15 is parallel light, but it does not have to be strictly parallel, and the second light 16 may be more diffuse than the first light 15 .
  • the illumination lens 1 has an asymmetric light distribution also in the regions 3c and 3d (regions 2c and 2d).
  • the light emitted from the region 3c of the illumination lens 1 is diffused in the X direction more than the light emitted from the region 3d. That is, the third light incident on the region 2d and emitted from the region 3d becomes parallel light.
  • the fourth light that is incident on the region 2c and emitted from the region 3c is light slightly diffused from the parallel light.
  • the third light is parallel light, but it does not have to be strictly parallel, as long as the fourth light is more diffuse than the third light.
  • FIG. 5 is a cross-sectional view showing an installation state of the lighting device according to this embodiment.
  • the lighting device 10 is installed in the tunnel 22 and irradiates the road surface of the road 21 with light.
  • the horizontal direction of the drawing corresponds to the width direction of the road 21 .
  • the illumination device 10 includes an illumination lens 1 and a light source 11 .
  • the lighting device 10 is installed on the wall surface of the tunnel 22 so that the height from the road 21 is h and the installation angle with respect to the road 21 is ⁇ 1.
  • FIG. 6 is a plan view showing the installation state of the lighting device according to this embodiment. Note that the tunnel 22 is omitted in FIG. 6 .
  • a road 21 is formed with a lane 23 and a lane 25 that is the opposing lane of the lane 23 via a center line 24 .
  • the traveling direction of the vehicle 26 traveling in the lane 23 is referred to as the traveling direction S1 (first traveling direction)
  • the traveling direction of the vehicle 27 traveling in the lane 25 is referred to as the traveling direction S2 (second traveling direction). do.
  • These traveling directions S1 and S2 match the X direction.
  • FIGS. 7 to 11 are diagrams showing the illuminance distribution of the lighting device according to this embodiment.
  • FIG. 7 is a diagram showing the illuminance distribution of the illumination device 10
  • FIG. 8 is a diagram showing only the illuminance distribution of the light emitted from the region 3a of the emission surface 3
  • FIG. 10 is a diagram showing only the illuminance distribution of light emitted from the region 3b
  • FIG. 10 is a diagram showing only the illuminance distribution of light emitted from the region 3c of the emission surface 3
  • FIG. FIG. 4 is a diagram showing only the illuminance distribution of light emitted from the .
  • regions with the same illuminance are connected by curved lines.
  • the illuminance of the road surface of the road 21 gradually decreases as the distance from the intersection O increases.
  • the road surface 23a on the left side of the drawing and the road surface 23b on the right side of the drawing have an asymmetric illuminance distribution with respect to the center of the drawing (a line passing through the intersection point O and parallel to the width direction).
  • the road surface 25a on the left side of the drawing and the road surface 25b on the right side of the drawing have an asymmetric illuminance distribution with respect to the center of the drawing.
  • the illuminance distribution of the lighting device 10 spreads widely on the right side of the drawing (road surface 23b).
  • the illumination range of the lighting device 10 on the traveling direction S1 side is widened, the visibility of the driver of the vehicle 26 traveling in the lane 23 can be improved.
  • the illuminance distribution of the lighting device 10 does not spread greatly to the left side of the drawing (road surface 23a), and the intervals between the curves representing the illuminance distribution are narrow.
  • the irradiation range of the lighting device 10 on the side opposite to the traveling direction S1 is narrowed, and the illuminance is also low, so that the driver of the vehicle 26 can be prevented from being glare.
  • detailed description is omitted, the same effect can be obtained in the lane 25 as well.
  • FIG. 12 is a plan view showing the arrangement of lighting devices in the lighting system according to this embodiment.
  • a plurality of lighting devices 10 are arranged along the road 21 in a staggered arrangement in the traveling direction of the road 21 in a tunnel (not shown). Each of the lighting devices 10 irradiates the road 21 with light.
  • the staggered arrangement means that the plurality of lighting devices 10 are staggered at regular intervals between the own lane and the opposite lane.
  • the plurality of lighting devices 10 include a plurality of first lighting devices 10 (10a) arranged on the lane 23 and a plurality of second lighting devices 10 (10b) arranged on the lane 25.
  • the plurality of first lighting devices 10 (10a) are arranged along the lane 23 at first intervals.
  • a plurality of second lighting devices 10 (10b) are arranged along the lane 25 at second intervals.
  • the second interval may be the same as the first interval.
  • the plurality of first lighting devices 10 (10a) are arranged with an offset in the traveling direction with respect to the plurality of second lighting devices 10 (10b).
  • the offset may be half the length of the first interval or some other length.
  • the irradiation range 28 indicates the irradiation range of the road 21 of the corresponding lighting device 10 .
  • the illumination device 10b irradiates the area 29 on the upper left side of the drawing with a small amount of light. illuminance can be maintained above a certain level. Thereby, the fall of the road surface illumination of the road 21 can be suppressed.
  • the illumination lens according to this embodiment is the illumination lens 1 used in the illumination device 10 installed on the road 21, and the front direction of the illumination lens 1 is perpendicular to the X direction.
  • the illumination lens 1 includes an incident surface 2 that receives light emitted from a light source 11, an output surface 3 that emits the light that has entered the incident surface 2, and a first light that irradiates a road 21 on the traveling direction S1 side.
  • regions 2a and 3a regions formed on the entrance surface 2 and the exit surface 3, respectively, and a second light diffused more than the first light on the opposite side of the traveling direction S1 of the road 21.
  • Regions 2b and 3b are formed on the entrance surface 2 and the exit surface 3, respectively, so as to irradiate light.
  • the illuminance of the lighting device 10 on the traveling direction S1 side in the lane 23 is increased, so that the visibility of the driver of the vehicle traveling in the traveling direction S1 can be improved.
  • the illuminance of the lighting device 10 on the side opposite to the traveling direction S1 is low, it is possible to suppress the occurrence of glare to the driver of the vehicle traveling in the traveling direction S1. Therefore, in the lane 23, glare can be suppressed while widening the irradiation range of the lighting device.
  • the regions 2a and 3a are formed on the entrance surface 2 and the exit surface 3 on the traveling direction S1 side of the road 21 relative to the regions 2b and 3b, respectively.
  • the regions 2a and 2b are formed on the side of the entrance surface 2 corresponding to the direction of light irradiation
  • the regions 3a and 3b are formed on the side of the exit surface 3 corresponding to the direction of light irradiation. Since it is formed, the configuration of the illumination lens 1 can be simplified.
  • the road 21 includes a lane 23 (first lane) and a lane 25 (second lane) that is the opposite lane of the lane 23 .
  • the regions 2a and 3a are formed so as to irradiate the first light on the traveling direction S1 side of the lane 23, and the regions 2b and 3b are formed so as to irradiate the second light on the opposite side of the traveling direction S1 of the lane 23.
  • the illumination lens 1 has regions 2d and 3d (third regions) formed on the entrance surface 2 and the exit surface 3, respectively, and the lane 25 so as to irradiate the third light toward the traveling direction S2 of the lane 25.
  • Regions 2c and 3c are formed on the entrance surface 2 and the exit surface 3, respectively, so as to irradiate the fourth light, which is more diffused than the third light, in the direction opposite to the traveling direction S2.
  • the illuminance of the lighting device 10 on the traveling direction S2 side is increased, the visibility of the driver of the vehicle traveling in the traveling direction S2 can be improved.
  • the illuminance of the lighting device 10 on the side opposite to the traveling direction S2 is low, so it is possible to suppress glare for the driver of the vehicle traveling in the traveling direction S2. Therefore, even in the lane 25 opposite to the lane 23, glare can be suppressed while widening the irradiation range of the lighting device.
  • the areas 2c and 3c are formed on the entrance surface 2 and the exit surface 3 on the traveling direction S1 side of the lane 23 relative to the areas 2d and 3d, respectively.
  • the regions 2c and 2d are formed on the incident surface 2 on the side corresponding to the light irradiation direction
  • the regions 3c and 3d are formed on the output surface 3 on the side corresponding to the light irradiation direction. Since it is formed, the configuration of the illumination lens 1 can be simplified.
  • the regions 2a and 3a and the regions 2b and 3b are separated by an axis Z1 (first axis) extending in the Z direction, and the regions 2c and 3c and the regions 2d and 3d are separated by the axis Z1. separated. Regions 2a, 3a and regions 2c, 3c are separated by an axis X1 (second axis) extending in the X direction, and regions 2b, 2b and regions 2d, 3d are separated by an axis X1. ing. Thereby, the configuration of the illumination lens 1 can be simplified.
  • the lighting system according to this embodiment includes a plurality of lighting devices 10 .
  • a plurality of lighting devices 10 are arranged along the road 21 so as to be staggered in the traveling direction of the road 21 .
  • the road surface of the road 21 can be fully illuminated while reducing the number of lighting devices 10 installed on the road 21 .
  • the illumination device 10 can use the illumination lens 1a shown in FIG. Specifically, the regions 2a and 2b are separated by an axis Z2 forming an angle ⁇ 2 (first angle) with the axis Z1. Similarly, regions 2c and 2d are bounded by axis Z2. The regions 2a and 2c are separated by an axis Z3 forming an angle ⁇ 3 (second angle) with the axis Z1. Similarly, regions 2b and 2d are bounded by axis Z3. If the illumination lens 1a can achieve the light distribution of the illumination lens 1 in FIG. 7, the angles .theta.2 and .theta.3 may be set in any way.
  • the configuration of the illumination lens is not limited to that of FIGS.
  • the axis that separates the regions 2a and 2c and the axis that separates the regions 2b and 2d are the same axis X1, but these axes may be shifted in the Z direction.
  • the axis that separates the regions 2a and 2b and the axis that separates the regions 2c and 2d are the same axis Z1, but these axes may be shifted in the X direction.
  • regions 2a to 2d and regions 3a to 3d are formed on the entrance surface 2 and the exit surface 3, but the present invention is not limited to this.
  • the present invention is not limited to this.
  • the road 21 has two lanes (lanes 23 and 25), but the lighting lens 1 can also be applied to the road 21 having only one lane. can be done.
  • the illuminance distribution of the lighting lens 1 in FIG. 7 can be realized by omitting the regions 2c, 2d, 3c, and 3d.
  • the illumination device 10 is installed in the tunnel 22, but it may be installed on the side of the road to irradiate the road with light.
  • FIG. 14 is a perspective view showing another example of the illumination lens according to this embodiment
  • FIG. 15 is a sectional view of an illumination device using the illumination lens of FIG.
  • the illumination device 10c includes a plurality of light sources 11 and an illumination lens 1b in which a plurality of illumination lenses 1 are arranged in an array.
  • the plurality of illumination lenses 1 provided in the illumination lens 1b are arranged so as to correspond to the plurality of light sources 11, respectively.
  • the illumination device 10 can irradiate stronger light.
  • 16A to 16C are plan views showing illuminance distributions of other examples of illumination lenses according to this embodiment. It is assumed that the illumination lens 1c has the illuminance distribution 30a shown in FIG. 16A, and the illumination lens 1d has the illuminance distribution 30b shown in FIG. 16B. In this case, by providing illumination lenses 1b and 1c having different illuminance distributions in the illumination device 10, the lights emitted from the illumination lenses 1c and 1d are superimposed to realize an illuminance distribution 30c as shown in FIG. 16C. can do. In this case, as shown in FIG. 16B, the illuminating device 10 may be provided with an illuminating lens 1d whose illuminance distribution is bilaterally symmetrical in plan view.
  • the illuminance distribution does not necessarily have to be symmetrical, and there are two or more types of lenses with different illuminance distributions including asymmetrical distributions, and those arranged in combination in the array of FIG. 14 may also be included. can.
  • the lighting device and lighting system of the present invention can be installed, for example, in a tunnel or on the side of a road, and can reduce the number of lighting devices to be installed.
  • Illumination lens 1 Entrance surface 3 Output surface 2a-2d, 3a-3d Area 10 (10a-10c) Lighting device 11 Light source 21 Road 23, 25 Lane 24 Center line 23a, 23b, 25a, 25b Road surface S1, S2 traveling direction

Abstract

Une lentille d'éclairage selon un mode de réalisation de la présente invention est utilisée dans un dispositif d'éclairage installé sur une route, et est disposée de telle sorte que son axe optique est perpendiculaire à la direction X. La lentille d'éclairage est pourvue : d'une surface d'incidence qui accepte la lumière émise par une source de lumière ; d'une surface d'émission pour émettre la lumière incidente sur la surface incidente ; de régions formées sur chacune de la surface incidente et de la surface d'émission de manière à projeter une première lumière sur la route sur le côté de celle-ci dans une direction de déplacement ; et de régions formées sur chacune de la surface incidente et de la surface d'émission de manière à projeter de la lumière qui est plus diffuse que la première lumière sur la route sur le côté de celle-ci opposé à la direction de déplacement.
PCT/JP2022/000762 2021-02-26 2022-01-12 Lentille d'éclairage, dispositif d'éclairage et système d'éclairage WO2022181091A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202280015430.3A CN116888403A (zh) 2021-02-26 2022-01-12 照明用透镜、照明装置以及照明系统
JP2023502149A JPWO2022181091A1 (fr) 2021-02-26 2022-01-12

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Application Number Priority Date Filing Date Title
JP2021-029683 2021-02-26
JP2021029683 2021-02-26

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WO2022181091A1 true WO2022181091A1 (fr) 2022-09-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100214787A1 (en) * 2009-02-26 2010-08-26 Foxsemicon Integrated Technology, Inc. Illumination device with anti-glare function
CN102563478A (zh) * 2010-12-23 2012-07-11 财团法人工业技术研究院 道路照明装置
KR101541826B1 (ko) * 2014-04-28 2015-08-12 한국광기술원 비대칭 렌즈 및 이를 이용한 터널 조명장치
JP2017162647A (ja) * 2016-03-09 2017-09-14 岩崎電気株式会社 光源ユニット、及び道路照明器具
CN208846331U (zh) * 2018-09-30 2019-05-10 欧普照明股份有限公司 配光元件、光源模组及照明灯具

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100214787A1 (en) * 2009-02-26 2010-08-26 Foxsemicon Integrated Technology, Inc. Illumination device with anti-glare function
CN102563478A (zh) * 2010-12-23 2012-07-11 财团法人工业技术研究院 道路照明装置
KR101541826B1 (ko) * 2014-04-28 2015-08-12 한국광기술원 비대칭 렌즈 및 이를 이용한 터널 조명장치
JP2017162647A (ja) * 2016-03-09 2017-09-14 岩崎電気株式会社 光源ユニット、及び道路照明器具
CN208846331U (zh) * 2018-09-30 2019-05-10 欧普照明股份有限公司 配光元件、光源模组及照明灯具

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JPWO2022181091A1 (fr) 2022-09-01

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