WO2022181091A1 - Illumination lens, illuminating device, and illuminating system - Google Patents

Illumination lens, illuminating device, and illuminating system Download PDF

Info

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
Authority
WO
WIPO (PCT)
Prior art keywords
light
regions
illumination
road
lane
Prior art date
Application number
PCT/JP2022/000762
Other languages
French (fr)
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 JP2023502149A priority Critical patent/JPWO2022181091A1/ja
Priority to CN202280015430.3A priority patent/CN116888403A/en
Publication of WO2022181091A1 publication Critical patent/WO2022181091A1/en

Links

Images

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

Landscapes

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

Abstract

An illumination lens according to an embodiment of the present invention is employed in an illuminating device installed on a road, and is disposed in such a way that the optical axis thereof is perpendicular the X-direction. The illumination lens is provided with: an incident surface which accepts light emitted from a light source; an emission surface for emitting the light incident on the incident surface; regions formed on each of the incident surface and the emission surface in such a way as to shine first light onto the road on the side thereof in a direction of travel; and regions formed on each of the incident surface and the emission surface in such a way as to shine light that is more diffuse than the first light onto the road on the side thereof opposite to the direction of travel.

Description

照明用レンズ、照明装置および照明システムIllumination lenses, illumination devices and illumination systems
　本発明は、照明用レンズ、照明装置および照明システムに関する。 The present invention relates to lighting lenses, lighting devices, and lighting systems.
　従来、道路に設置される照明装置には、水銀灯や高圧ナトリウム灯などが用いられていた。しかし、近年、高寿命・高輝度・低消費電力を図るため、ＬＥＤ（Light Emitting Diode）などの発光素子を光源として用いた照明装置が実用化されている。 Conventionally, mercury lamps and high-pressure sodium lamps were used for lighting equipment installed on roads. However, in recent years, lighting devices using light-emitting elements such as LEDs (Light Emitting Diodes) as light sources have been put to practical use in order to achieve long life, high brightness, and low power consumption.
　また、特許文献１には、灯具（照明装置）に用いられる配光制御レンズが開示されている。特許文献１の配光制御レンズを、ＬＥＤを光源とする照明装置に用いることで、照明装置の照射範囲を広げることができる。これにより、照明装置の設置間隔を広くすることができるため、照明装置の設置コストを抑えることができる。 In addition, Patent Document 1 discloses a light distribution control lens used for a lamp (lighting device). By using 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. As a result, the installation interval of the lighting devices can be widened, and the installation cost of the lighting devices can be suppressed.
特許第６６０４５９３号Patent No. 6604593
　本発明の一実施形態に係る照明用レンズは、道路に設置される照明装置に用いられる照明用レンズであって、当該照明用レンズは、正面方向が前記道路の進行方向に沿う方向である平行方向と垂直になるように配置され、光源から出射された光を受ける入射面と、前記入射面に入射された光を出射する出射面と、前記道路の進行方向側に第１光を照射するように、前記入射面および前記出射面の少なくともいずれか一方に形成された第１領域と、前記道路の進行方向と反対側に前記第１光よりも拡散した光を照射するように、前記入射面および前記出射面の少なくともいずれか一方に形成された第２領域とを備える。 An illuminating lens according to one embodiment of the present invention 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.
本実施形態に係る照明用レンズの正面図。The front view of the lens for illumination which concerns on this embodiment. 本実施形態に係る照明用レンズの側面図。The side view of the lens for illumination which concerns on this embodiment. 本実施形態に係る照明用レンズの斜視図。The perspective view of the lens for illumination which concerns on this embodiment. 本実施形態に係る照明用レンズから照射される光線を示す側面図。The side view which shows the light ray irradiated from the lens for illumination which concerns on this embodiment. 本実施形態に係る照明装置の設置状態を示す断面図。Sectional drawing which shows the installation state of the illuminating device which concerns on this embodiment. 本実施形態に係る照明装置の設置状態を示す平面図。The top view which shows the installation state of the illuminating device which concerns on this embodiment. 本実施形態に係る照明装置の照度分布を示す図。FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment; 本実施形態に係る照明装置の照度分布を示す図。FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment; 本実施形態に係る照明装置の照度分布を示す図。FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment; 本実施形態に係る照明装置の照度分布を示す図。FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment; 本実施形態に係る照明装置の照度分布を示す図。FIG. 3 is a diagram showing the illuminance distribution of the lighting device according to the embodiment; 本実施形態に係る照明システムにおける照明装置の配置を示す平面図。The top view which shows the arrangement|positioning of the illuminating device in the illuminating system which concerns on this embodiment. 本実施形態に係る照明用レンズの他の例を示す正面図。The front view which shows the other example of the lens for illumination which concerns on this embodiment. 本実施形態に係る照明用レンズの他の例を示す斜視図。The perspective view which shows the other example of the lens for illumination which concerns on this embodiment. 図１４の照明用レンズを用いた照明装置の断面図。FIG. 15 is a cross-sectional view of an illumination device using the illumination lens of FIG. 14; 本実施形態に係る照明用レンズの他の例による照度分布を示す平面図。The top view which shows the illumination intensity distribution by the other example of the lens for illumination which concerns on this embodiment. 本実施形態に係る照明用レンズの他の例による照度分布を示す平面図。The top view which shows the illumination intensity distribution by the other example of the lens for illumination which concerns on this embodiment. 本実施形態に係る照明用レンズの他の例による照度分布を示す平面図。The top view which shows the illumination intensity distribution by the other example of the lens for illumination which concerns on this embodiment. 本実施形態に係る照明用レンズから照射される光線を示す側面図。The side view which shows the light ray irradiated from the lens for illumination which concerns on this embodiment.
　照明装置の設置間隔を広くするためには、照明装置の配光の広がりを大きくするとともに、照明装置が照射する光を強くする必要がある。この場合、照明装置の配光の広がりを大きくしすぎたり、照明装置が照射する光を強くしすぎたりすると、路面の輝度が上昇してしまう。このため、道路を走行している車両の運転手の視界に強い光が入り込むことにより、グレアが発生する可能性がある。 In order to widen the installation interval of the lighting devices, it is necessary to increase the spread of the light distribution of the lighting devices and to increase the intensity of the light emitted by the lighting devices. In this case, if the spread of the light distribution of the lighting device is made too large or the light emitted by the lighting device is made too strong, the brightness of the road surface will increase. As a result, glare may occur due to strong light entering the field of view of the driver of the vehicle traveling on the road.
　そこで、本発明の実施形態は、照明装置の照射範囲を広げつつ、グレアを抑えることを目的とする。 Therefore, the embodiments of the present invention aim to suppress glare while widening the irradiation range of the lighting device.
　以下、本発明の実施形態を図面に基づいて詳細に説明する。以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物あるいはその用途を制限することを意図するものでは全くない。 Hereinafter, embodiments of the present invention will be described in detail based on the drawings. The following description of preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its applicability or its uses.
　（照明用レンズの構成）
　図１は本実施形態に係る照明用レンズの正面図を示し、図２は本実施形態に係る照明用レンズの側面図を示し、図３は本実施形態に係る照明用レンズの斜視図を示す。図４は本実施形態に係る照明用レンズから照射される光線を示す側面図である。以下の説明において、Ｘ方向は後述する道路２１の進行方向に沿う方向である平行方向、Ｙ方向は照明用レンズ１の正面方向、Ｚ方向はＸ方向およびＹ方向に垂直をなす鉛直方向をそれぞれ示す。また、図４では、照明用レンズ１から照射される光線を破線で図示している。 (Structure of illumination lens)
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, and 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. In the following description, 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, and the Z direction is the vertical direction perpendicular to the X and Y directions. show. In addition, in FIG. 4, the light rays emitted from the illumination lens 1 are indicated by dashed lines.
　図１～図４に示すように、照明用レンズ１は、透明体で光を屈折する材質で形成されており、ＬＥＤ（Light Emitting Diode）などの発光素子を有する光源１１から出射された光をＸ方向に拡散する。 As shown in FIGS. 1 to 4, 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.
　具体的には、照明用レンズ１は、光源１１から出射された光を受ける入射面２と、入射面２に入射した光を出射する出射面３とを備える。入射面２は、光源１１を覆うように、凹状に形成されている。また、出射面３は、入射面２と対向する位置に、凸状に形成されている。なお、図１～図４では、便宜上、光源１１は、照明用レンズ１をＹ方向から見たときに、照明用レンズ１の中心点に一致するように配置されているが、これに限られない。 Specifically, 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 . Moreover, 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.
　また、入射面２には、領域２ａ～２ｄが形成されている。図１において、照明用レンズ１の中心点を通って、Ｚ方向に延びる軸を軸Ｚ１、Ｘ方向に延びる軸を軸Ｘ１とした場合、領域２ａは軸Ｚ１の左側および軸Ｘ１の上側に形成され、領域２ｂは軸Ｚ１の右側および軸Ｘ１の上側に形成され、領域２ｃは軸Ｚ１の左側および軸Ｘ１の下側に形成され、領域２ｄは軸Ｚ１の右側および軸Ｘ１の下側に形成されている。すなわち、領域２ａ，２ｂは、軸Ｚ１によって区切られており、領域２ｃ，２ｄは、軸Ｚ１によって区切られている。領域２ａ，２ｃは、軸Ｘ１によって区切られており、領域２ｂ，２ｄは、軸Ｘ１によって区切られている。 In addition, regions 2 a to 2 d are formed on the incident surface 2 . In FIG. 1, when an axis extending in the Z direction passing through the center point of the illumination lens 1 is defined as an axis Z1 and an axis extending in the X direction is defined as an axis X1, 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, and region 2d is formed on the right side of axis Z1 and below axis X1. It is That is, the areas 2a, 2b are bounded by the axis Z1, and the areas 2c, 2d are bounded by the axis Z1. Regions 2a, 2c are delimited by axis X1 and regions 2b, 2d are delimited by axis X1.
　図１～図３に示すように、入射面２は、軸Ｚ１に対して非対称な曲面となるように形成されており、また、軸Ｘ１に対しても非対称な曲面となるように形成されている。すなわち、領域２ａ，２ｃと領域２ｂ，２ｄとの曲面がそれぞれ非対称となっており、領域２ａ，２ｂと領域２ｃ，２ｄとの曲面がそれぞれ非対称となっている。 As shown in FIGS. 1 to 3, 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. there is That is, the curved surfaces of the regions 2a, 2c and the regions 2b, 2d are asymmetrical, and the curved surfaces of the regions 2a, 2b and the regions 2c, 2d are asymmetrical.
　また、出射面３には、領域３ａ～３ｄが形成されている。図１において、領域３ａは軸Ｚ１の左側および軸Ｘ１の上側に形成され、領域３ｂは軸Ｚ１の右側および軸Ｘ１の上側に形成され、領域３ｃは軸Ｚ１の左側および軸Ｘ１の下側に形成され、領域３ｄは軸Ｚ１の右側および軸Ｘ１の下側に形成されている。すなわち、領域３ａ，３ｂは、軸Ｚ１によって区切られており、領域３ｃ，３ｄは、軸Ｚ１によって区切られている。領域３ａ，３ｃは、軸Ｘ１によって区切られており、領域３ｂ，３ｄは、軸Ｘ１によって区切られている。 In addition, areas 3a to 3d are formed on the emission surface 3. FIG. In FIG. 1, 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, and 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.
　図１～図３に示すように、出射面３は、軸Ｚ１に対して非対称な曲面となるように形成されており、また、軸Ｘ１に対しても非対称な曲面となるように形成されている。すなわち、領域３ａ，３ｃと領域３ｂ，３ｄとの曲面がそれぞれ非対称となっており、領域３ａ，３ｂと領域３ｃ，３ｄとの曲面がそれぞれ非対称となっている。 As shown in FIGS. 1 to 3, 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. there is That is, the curved surfaces of the regions 3a, 3c and the regions 3b, 3d are asymmetrical, and the curved surfaces of the regions 3a, 3b and the regions 3c, 3d are asymmetrical.
　なお、図１では、便宜上、軸Ｚ１，Ｘ１の交点を照明用レンズ１の中心点としているが、この交点は任意に設定することができる。 In FIG. 1, the 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.
　図４および図１７に示すように、照明用レンズ１は、領域３ａ，３ｂ（２ａ，２ｂ）において、照明用レンズ１の中心点を通ってＹ軸に延びる軸Ｙ１に対して、配光が非対称となっている。図１７に示すように、入射面２は、領域２ａおよび領域２ｂを含む。出射面３は、領域３ａおよび領域３ｂを含む。第１光１５は、領域２ａに入射し、領域３ａから出射される。第２光１６は、領域２ｂに入射し、領域３ｂから出射される。第１光１５は、例えば、平行光である。具体的には、第１光１５は、光ビーム１５ａと、光ビーム１５ａに平行な光ビーム１５ｂとを含む。第２光１６は、第１光１５よりも拡散している。具体的には、第２光１６は、光ビーム１６ａと、光ビーム１６ａと非平行な光ビーム１６ｂとを含む。本実施形態では、第２光１６は、領域３ｂから出射された後、点１６ｃに集光し、その後、拡散している。ただし、本開示は、これに限らず、第２光１６は、集光することなく拡散してもよい。本実施形態では、第１光１５は、平行光であるが、必ずしも厳密に平行でなくてもよく、第２光１６が第１光１５よりも拡散していればよい。 As shown in FIGS. 4 and 17, 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. As shown in FIG. 17, 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. Specifically, 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 . Specifically, the second light 16 includes a light beam 16a and a light beam 16b non-parallel to the light beam 16a. In this embodiment, the second light 16 is condensed at a point 16c after being emitted from the region 3b, and then diffused. However, the present disclosure is not limited to this, and the second light 16 may be diffused without being condensed. In this embodiment, 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 .
　図示は省略するが、照明用レンズ１は、領域３ｃ，３ｄ（領域２ｃ，２ｄ）においても、配光が非対称となっている。照明用レンズ１の領域３ｃから出射された光は、領域３ｄから出射された光よりも、Ｘ方向に拡散される。すなわち、領域２ｄに入射し、領域３ｄから出射される第３光は平行光となる。領域２ｃに入射し、領域３ｃから出射される第４光は平行光からやや拡散した光となる。本実施形態では、第３光は、平行光であるが、必ずしも厳密に平行でなくてもよく、第４光が第３光よりも拡散していればよい。 Although not shown, 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. In this embodiment, 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.
　（照明装置の配光について）
　図５は本実施形態に係る照明装置の設置状態を示す断面図である。照明装置１０は、トンネル２２内に設置され、道路２１の路面に対して光を照射するものである。なお、図５では、図面の左右方向が道路２１の幅方向に相当する。 (Regarding light distribution of lighting equipment)
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. In addition, in FIG. 5 , the horizontal direction of the drawing corresponds to the width direction of the road 21 .
　照明装置１０は照明用レンズ１と光源１１とを備える。照明装置１０は、道路２１からの高さがｈ、道路２１に対する設置角度がθ１となるように、トンネル２２の壁面に設置されている。 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 θ1.
　図６は本実施形態に係る照明装置の設置状態を示す平面図である。なお、図６ではトンネル２２を省略して図示している。 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 .
　図６に示すように、道路２１には、車線２３と、センターライン２４を介して、車線２３の対向車線となる車線２５とが形成されている。なお、以下の説明において、車線２３を走行する車両２６の進行方向を進行方向Ｓ１（第１進行方向）とし、車線２５を走行する車両２７の進行方向を進行方向Ｓ２（第２進行方向）とする。この進行方向Ｓ１，Ｓ２は、Ｘ方向と一致している。 As shown 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 . In the following description, the traveling direction of the vehicle 26 traveling in the lane 23 is referred to as the traveling direction S1 (first traveling direction), and 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.
　図７～図１１は本実施形態に係る照明装置の照度分布を示す図である。具体的に、図７は照明装置１０の照度分布を示す図であり、図８は出射面３の領域３ａから出射された光の照度分布のみを示す図であり、図９は出射面３の領域３ｂから出射された光の照度分布のみを示す図であり、図１０は出射面３の領域３ｃから出射された光の照度分布のみを示す図であり、図１１は出射面３の領域３ｄから出射された光の照度分布のみを示す図である。なお、図７～図１１では、同一の照度となる領域を曲線で結んで表示している。 7 to 11 are diagrams showing the illuminance distribution of the lighting device according to this embodiment. Specifically, 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, and 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, and FIG. FIG. 4 is a diagram showing only the illuminance distribution of light emitted from the . In FIGS. 7 to 11, regions with the same illuminance are connected by curved lines.
　図７～図１１は、平面視において、照明用レンズ１の正面方向と、センターライン２４との交点Ｏを中心として、道路２１の進行方向±３０ｍ、幅方向±３ｍにおける領域の照明装置１０の照度分布を示している。照明装置１０は、進行方向±０ｍ、幅方向－１．８ｍ、高さｈ＝５ｍの位置に設置されている。 7 to 11 show, in a plan view, an area of ±30 m in the traveling direction and ±3 m in the width direction of the road 21 centering on the intersection O between the front direction of the illumination lens 1 and the center line 24. Illuminance distribution is shown. The illumination device 10 is installed at a position of ±0 m in the traveling direction, −1.8 m in the width direction, and h=5 m in height.
　図７に示すように、交点Ｏから離れるにしたがって、道路２１の路面の照度が徐々に低くなっている。ここで、車線２３において、図面左側の路面２３ａと、図面右側の路面２３ｂとは、図面中央（交点Ｏを通り幅方向に平行な線）に対して、照度分布が非対称となっている。車線２５において、図面左側の路面２５ａと、図面右側の路面２５ｂとは、図面中央に対して、照度分布が非対称となっている。 As shown in FIG. 7, the illuminance of the road surface of the road 21 gradually decreases as the distance from the intersection O increases. Here, in the lane 23, 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). In the lane 25, 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.
　具体的に、車線２３において、照明装置１０の照度分布が、図面右側（路面２３ｂ）に大きく広がっている。これにより、照明装置１０の、進行方向Ｓ１側の照射範囲が広がるため、車線２３を走行する車両２６の運転手の見通しをよくすることができる。また、車線２３において、照明装置１０の照度分布が、図面左側（路面２３ａ）に大きく広がっておらず、また、照度分布を示す曲線の間隔が狭くなっている。これにより、照明装置１０の、進行方向Ｓ１の反対側の照射範囲が狭くなり、また、その照度も低くなるため、車両２６の運転手にグレアが発生することを抑えることができる。なお、詳しい説明は省略するが、車線２５においても同様の効果を得ることができる。 Specifically, in the lane 23, the illuminance distribution of the lighting device 10 spreads widely on the right side of the drawing (road surface 23b). As a result, since 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. In addition, in the lane 23, 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. As a result, 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. Although detailed description is omitted, the same effect can be obtained in the lane 25 as well.
　（照明システムについて）
　図１２は本実施形態に係る照明システムにおける照明装置の配置を示す平面図である。 (About the lighting system)
FIG. 12 is a plan view showing the arrangement of lighting devices in the lighting system according to this embodiment.
　図１２では、複数の照明装置１０が、トンネル（図示省略）内において道路２１の進行方向に千鳥配置となるように、道路２１に沿って配置されている。そして、複数の照明装置１０は、それぞれが、道路２１に対して光を照射している。千鳥配置とは、複数の照明装置１０が自車線と反対車線とで等間隔に互い違いに配置されていることである。具体的には、複数の照明装置１０は、車線２３に配置された複数の第１照明装置１０（１０ａ）と、車線２５に配置された複数の第２照明装置１０（１０ｂ）とを含む。複数の第１照明装置１０（１０ａ）は、車線２３に沿って第１インターバルで配置される。複数の第２照明装置１０（１０ｂ）は、車線２５に沿って第２インターバルで配置される。第２インターバルは、第１インターバルと同じでもよい。複数の第１照明装置１０（１０ａ）は、複数の第２照明装置１０（１０ｂ）に対して進行方向にオフセットをもって配置されている。オフセットは、第１インターバルの半分の長さでも、その他の長さでもよい。図１２では、照射範囲２８が、対応する照明装置１０の道路２１に対する照射範囲を示す。このように照明装置１０を道路２１に沿って千鳥配置となるように配置することにより、道路２１の路面を漏れなく照らすことができる。 In FIG. 12, 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. Specifically, 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. In FIG. 12, the irradiation range 28 indicates the irradiation range of the road 21 of the corresponding lighting device 10 . By arranging the lighting devices 10 in a zigzag arrangement along the road 21 in this manner, the road surface of the road 21 can be illuminated without omission.
　また、照明装置１０ｂは、上述したように、図面左上側の領域２９に対して照射する光量が少なくなってしまうが、照明装置１０ａが図面右側に広い照度分布を有しているため、領域２９の照度を一定以上に保つことができる。これにより、道路２１の路面照度の低下を抑えることができる。 In addition, as described above, 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.
　以上の構成により、本実施形態に係る照明用レンズは、道路２１に設置される照明装置１０に用いられる照明用レンズ１であって、照明用レンズ１は、正面方向がＸ方向と垂直になるように配置される。照明用レンズ１は、光源１１から出射された光を受ける入射面２と、入射面２に入射された光を出射する出射面３と、道路２１の進行方向Ｓ１側に第１光を照射するように、入射面２および出射面３のそれぞれに形成された領域２ａ，３ａ（第１領域）と、道路２１の進行方向Ｓ１と反対側に、第１光よりも拡散した光となる第２光を照射するように、入射面２および出射面３のそれぞれに形成された領域２ｂ，３ｂ（第２領域）とを備える。 With the above configuration, 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. are arranged as follows. 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 (first 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 (second regions) are formed on the entrance surface 2 and the exit surface 3, respectively, so as to irradiate light.
　これにより、車線２３において、照明装置１０の、進行方向Ｓ１側の照度が上がるため、進行方向Ｓ１に向かって走行する車両の運転手の見通しをよくすることができる。また、車線２３において、照明装置１０の、進行方向Ｓ１の反対側の照度が低くなるため、進行方向Ｓ１に向かって走行する車両の運転手にグレアが発生することを抑えることができる。したがって、車線２３において、照明装置の照射範囲を広げつつ、グレアを抑えることができる。 As a result, 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. In addition, in the lane 23, since 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.
　また、領域２ａ，３ａは、入射面２および出射面３において、領域２ｂ，３ｂよりも道路２１の進行方向Ｓ１側にそれぞれ形成されている。これにより、領域２ａ，２ｂが、それぞれ、入射面２において、光の照射方向に対応する側に形成され、領域３ａ，３ｂが、それぞれ、出射面３において、光を照射方向に対応する側に形成されるため、照明用レンズ１の構成を簡易にすることができる。 In addition, 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. As a result, the regions 2a and 2b are formed on the side of the entrance surface 2 corresponding to the direction of light irradiation, and 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.
　また、道路２１は車線２３（第１車線）と、車線２３の対向車線である車線２５（第２車線）とを含む。領域２ａ，３ａは、車線２３の進行方向Ｓ１側に第１光を照射するように形成されており、領域２ｂ，３ｂは、車線２３の進行方向Ｓ１と反対側に第２光を照射するように形成されている。照明用レンズ１は、車線２５の進行方向Ｓ２側に第３光を照射するように、入射面２および出射面３のそれぞれに形成された領域２ｄ，３ｄ（第３領域）と、車線２５の進行方向Ｓ２と反対側に第３光よりも拡散した光となる第４光を照射するように、入射面２および出射面３それぞれに形成された領域２ｃ，３ｃ（第４領域）と備える。 In addition, 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. is formed in 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 (fourth regions) 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.
　この構成では、上述したように、車線２３において、照明装置の照射範囲を広げつつ、グレアを抑えることができる。 With this configuration, as described above, glare can be suppressed while widening the irradiation range of the lighting device in the lane 23 .
　また、車線２５において、照明装置１０の、進行方向Ｓ２側の照度が上がるため、進行方向Ｓ２に向かって走行する車両の運転手の見通しをよくすることができる。また、車線２５において、照明装置１０の、進行方向Ｓ２の反対側の照度が低くなるため、進行方向Ｓ２に向かって走行する車両の運転手にグレアが発生することを抑えることができる。したがって、車線２３の反対車線である車線２５においても、照明装置の照射範囲を広げつつ、グレアを抑えることができる。 In addition, in the lane 25, since 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. In addition, in the lane 25, 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.
　また、領域２ｃ，３ｃは、入射面２および出射面３において、領域２ｄ，３ｄよりも車線２３の進行方向Ｓ１側にそれぞれ形成されている。これにより、領域２ｃ，２ｄが、それぞれ、入射面２において、光の照射方向に対応する側に形成され、領域３ｃ，３ｄが、それぞれ、出射面３における、光の照射方向に対応する側に形成されるため、照明用レンズ１の構成を簡易にすることができる。 Also, 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. As a result, the regions 2c and 2d are formed on the incident surface 2 on the side corresponding to the light irradiation direction, and 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.
　また、領域２ａ，３ａと領域２ｂ，３ｂとは、Ｚ方向に延びる軸Ｚ１（第１軸）によって、それぞれ区切られており、領域２ｃ，３ｃと領域２ｄ，３ｄとは、軸Ｚ１によって、それぞれ区切られている。領域２ａ，３ａと領域２ｃ，３ｃとは、Ｘ方向に延びる軸Ｘ１（第２軸）によって、それぞれ区切られており、領域２ｂ，２ｂと領域２ｄ，３ｄとは、軸Ｘ１によって、それぞれ区切られている。これにより、照明用レンズ１の構成を簡易にすることができる。 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.
　また、本実施形態に係る照明システムは、複数の照明装置１０を備える。複数の照明装置１０は、道路２１の進行方向に千鳥配置となるように、道路２１に沿って配置されている。これにより、道路２１に設置する照明装置１０の数を減らしつつ、道路２１の路面を漏れなく照らすことができる。 Also, 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 . As a result, the road surface of the road 21 can be fully illuminated while reducing the number of lighting devices 10 installed on the road 21 .
　（その他の実施形態）
　以上のように、本出願において開示する技術の例示として、実施形態について説明した。しかしながら、本開示における技術は、これに限定されず、適宜、変更、置き換え、付加、省略などを行った実施形態にも適用可能である。 (Other embodiments)
As described above, the embodiments have been described as examples of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can also be applied to embodiments in which modifications, replacements, additions, omissions, etc. are made as appropriate.
　なお、照明用レンズ１における領域の区切り方は、図１に限られない。例えば、照明装置１０には、図１３に示す照明用レンズ１ａを用いることができる。具体的に、領域２ａ，２ｂは、軸Ｚ１と角度θ２（第１角度）をなす軸Ｚ２によって区切られている。同様に、領域２ｃ，２ｄは、軸Ｚ２によって区切られている。また、領域２ａ，２ｃは、軸Ｚ１と角度θ３（第２角度）をなす軸Ｚ３によって区切られている。同様に、領域２ｂ，２ｄは、軸Ｚ３によって区切られている。照明用レンズ１ａが図７の照明用レンズ１の配光を実現できれば、角度θ２，θ３をどのように設定してもよい。 It should be noted that the method of partitioning the regions in the illumination lens 1 is not limited to that in FIG. For example, 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 θ2 (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 θ3 (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.
　また、図７の照明用レンズ１の配光（照度分布）を実現できれば、照明用レンズの構成は、図１および図１３に限られない。例えば、図１では、領域２ａ，２ｃを区切る軸と、領域２ｂ，２ｄを区切る軸が同一の軸Ｘ１であるが、これらの軸がＺ方向にずれていてもよい。同様に、領域２ａ，２ｂを区切る軸と、領域２ｃ，２ｄを区切る軸が同一の軸Ｚ１であるが、これらの軸がＸ方向にずれていてもよい。 Also, if the light distribution (illuminance distribution) of the illumination lens 1 in FIG. 7 can be realized, the configuration of the illumination lens is not limited to that of FIGS. For example, in FIG. 1, 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. Similarly, 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.
　また、図１および図１３では、入射面２および出射面３に領域２ａ～２ｄ，領域３ａ～３ｄが形成されているが、これに限られない。例えば、領域２ａ～２ｄ，領域３ａ～３ｄのいずれか一方のみを照明用レンズ１に形成することによっても、図７の照明用レンズ１の照度分布を実現することができる。 1 and 13, 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. For example, by forming only one of the regions 2a to 2d and the regions 3a to 3d in the illumination lens 1, the illuminance distribution of the illumination lens 1 in FIG. 7 can be realized.
　また、上記実施形態では、道路２１に２つの車線（車線２３，２５）が形成されているが、照明用レンズ１は、道路２１に１つの車線のみが形成されている場合にも適用することができる。例えば、道路２１に車線２３のみが形成されている場合、領域２ｃ，２ｄ，３ｃ，３ｄを省略することで、図７の照明用レンズ１の照度分布を実現することができる。 In the above embodiment, 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. For example, when only lanes 23 are formed on the road 21, the illuminance distribution of the lighting lens 1 in FIG. 7 can be realized by omitting the regions 2c, 2d, 3c, and 3d.
　また、上記実施形態では、照明装置１０は、トンネル２２に設置されるものとして説明したが、道路脇に設置され、当該道路に対して光を照射するものとしてもよい。 Also, in the above embodiment, 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.
　図１４は本実施形態に係る照明用レンズの他の例を示す斜視図であり、図１５は図１４の照明用レンズを用いた照明装置の断面図である。図１４および図１５に示すように、照明装置１０ｃは、複数の光源１１と、複数の照明用レンズ１がアレイ状に配置された照明用レンズ１ｂとを備える。照明用レンズ１ｂに設けられた複数の照明用レンズ１は、複数の光源１１に対応するようにそれぞれ配置されている。照明用レンズ１をアレイ状に配置することにより、照明装置１０はより強い光を照射することが可能となる。 FIG. 14 is a perspective view showing another example of the illumination lens according to this embodiment, and FIG. 15 is a sectional view of an illumination device using the illumination lens of FIG. As shown in FIGS. 14 and 15, 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. By arranging the illumination lenses 1 in an array, the illumination device 10 can irradiate stronger light.
　図１６Ａ～図１６Ｃは本実施形態に係る照明用レンズの他の例による照度分布を示す平面図である。照明用レンズ１ｃは、図１６Ａの照度分布３０ａを有し、照明用レンズ１ｄは、図１６Ｂの照度分布３０ｂを有するとする。この場合、照明装置１０に、異なる照度分布を有する照明用レンズ１ｂ，１ｃを備えることにより、照明用レンズ１ｃ，１ｄから照射される光が重ね合わせられ、図１６Ｃのような照度分布３０ｃを実現することができる。この場合、図１６Ｂに示すように、照度分布が平面視において左右対称となる照明用レンズ１ｄを照明装置１０に備えてもよい。なお必ずしも照度分布は左右対称である必要は無く、非対称分布を含む異なる照度分布をもつレンズが２種類以上複数種類あり、図１４のアレイ状の中に組み合わせて配置されているものも含むことができる。 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. It should be noted that 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.
　本発明の一態様によると、照明装置の照射範囲を広げつつ、グレアを抑えることができる。 According to one embodiment of the present invention, it is possible to suppress glare while widening the irradiation range of the lighting device.
　本発明の照明装置および照明システムは、例えば、トンネル内や道路脇に設置することができ、設置する照明装置の数を抑えることができる。 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.
　１（１ａ～１ｄ）　照明用レンズ
　２　入射面
　３　出射面
　２ａ～２ｄ，３ａ～３ｄ　領域
　１０（１０ａ～１０ｃ）　照明装置
　１１　光源
　２１　道路
　２３，２５　車線
　２４　センターライン
　２３ａ，２３ｂ，２５ａ，２５ｂ　路面
　Ｓ１，Ｓ２　進行方向 1 (1a-1d) Illumination lens 2 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

Claims (11)

  1. 　道路に設置される照明装置に用いられる照明用レンズであって、
    　当該照明用レンズは、前記照明用レンズの正面方向が前記道路の進行方向に沿う方向である平行方向と垂直になるように配置され、
    　光源から出射された光を受ける入射面と、
    　前記入射面に入射された光を出射する出射面と、
    　前記道路の進行方向側に第１光を照射するように、前記入射面および前記出射面の少なくともいずれか一方に形成された第１領域と、
    　前記道路の進行方向と反対側に、前記第１光よりも拡散した光となる第２光を照射するように、前記入射面および前記出射面の少なくともいずれか一方に形成された第２領域と、
    　を備えることを特徴とする照明用レンズ。     A lighting lens used in a lighting device installed on a road,
    The illumination lens is arranged so that the front direction of the illumination lens is perpendicular to the parallel direction that is the direction along the traveling direction of the road,
    an incident surface that receives light emitted from a light source;
    an exit surface for exiting the light incident on the incident surface;
    a first region formed on at least one of the entrance surface and the exit surface so as to irradiate the first light in the traveling direction of the road;
    a second region formed on at least one of the entrance surface and the exit surface so as to irradiate a second light, which is more diffused than the first light, on the side opposite to the traveling direction of the road; ,
    An illumination lens comprising:
  2. 　請求項１記載の照明用レンズにおいて、
    　前記第１領域は、前記入射面および前記出射面において、前記第２領域よりも前記道路の進行方向側に形成されている
    　ことを特徴とする照明用レンズ。     The illumination lens according to claim 1,
    The illumination lens, wherein the first region is formed on the incident surface and the exit surface on the traveling direction side of the road relative to the second region.
  3. 　請求項１記載の照明用レンズにおいて、
    　前記道路は第１車線と、当該第１車線の対向車線である第２車線とを含み、
    　前記第１領域は、前記第１車線の進行方向側に前記第１光を照射するように形成されており、
    　前記第２領域は、前記第１車線の進行方向と反対側に前記第２光を照射するように形成されており、
    　当該照明用レンズは、
    　前記第２車線の進行方向側に第３光を照射するように、前記入射面および前記出射面の少なくともいずれか一方に形成された第３領域と、
    　前記第２車線の進行方向と反対側に前記第３光よりも拡散した光となる第４光を照射するように、入射面および前記出射面の少なくともいずれか一方に形成された第４領域と
    　をさらに備える
    　ことを特徴とする照明用レンズ。     The illumination lens according to claim 1,
    The road includes a first lane and a second lane that is an opposite lane of the first lane,
    The first region is formed so as to irradiate the first light on the traveling direction side of the first lane,
    The second region is formed to irradiate the second light on the side opposite to the traveling direction of the first lane,
    The lighting lens is
    a third region formed on at least one of the entrance surface and the exit surface so as to irradiate the third light in the direction of travel of the second lane;
    a fourth region formed on at least one of the incident surface and the exit surface so as to irradiate the fourth light, which is more diffused than the third light, in the direction opposite to the traveling direction of the second lane; An illumination lens, further comprising:
  4. 　請求項３記載の照明用レンズにおいて、
    　前記第１領域は、前記入射面および前記出射面において、前記第２領域よりも前記第１車線の進行方向側に形成されており、
    　前記第４領域は、前記入射面および前記出射面において、前記第３領域よりも前記第１車線の進行方向側に形成されている
    　ことを特徴とする照明用レンズ。     In the lighting lens according to claim 3,
    The first region is formed on the incident surface and the exit surface on the traveling direction side of the first lane relative to the second region,
    The illumination lens, wherein the fourth region is formed on the incident surface and the exit surface closer to the traveling direction of the first lane than the third region.
  5. 　請求項４の照明用レンズにおいて、
    　前記第１および第２領域は、前記正面方向および前記平行方向と垂直をなす鉛直方向に延びる第１軸によって区切られており、
    　前記第３および第４領域は、前記第１軸によって区切られており、
    　前記第１および第４領域は、前記平行方向に延びる第２軸によって区切られており、
    　前記第２および第３領域は、前記第２軸によって区切られている
    　ことを特徴とする照明用レンズ。     In the illumination lens of claim 4,
    The first and second regions are separated by a first axis extending in a vertical direction perpendicular to the front direction and the parallel direction,
    the third and fourth regions are bounded by the first axis;
    The first and fourth regions are separated by a second axis extending in the parallel direction,
    The illumination lens, wherein the second and third regions are separated by the second axis.
  6. 　請求項４の照明用レンズにおいて、
    　前記第１および第２領域は、前記正面方向および前記平行方向と垂直をなす鉛直方向と第１角度をなす方向に延びる第３軸によって区切られており、
    　前記第３および第４領域は、前記第３軸によって区切られており、
    　前記第１および第４領域は、前記鉛直方向と第２角度をなす方向に延びる第４軸によって区切られており、
    　前記第２および第３領域は、前記第４軸によって区切られている
    　ことを特徴とする照明用レンズ。     In the illumination lens of claim 4,
    The first and second regions are separated by a third axis extending in a direction forming a first angle with a vertical direction perpendicular to the front direction and the parallel direction,
    the third and fourth regions are separated by the third axis;
    the first and fourth regions are separated by a fourth axis extending in a direction forming a second angle with the vertical direction;
    The illumination lens, wherein the second and third regions are separated by the fourth axis.
  7. 　発光素子を有する光源と、
    　請求項１～６のいずれか１項に記載の照明用レンズと
    　を備えることを特徴とする照明装置。     a light source having a light emitting element;
    An illumination device comprising: the illumination lens according to any one of claims 1 to 6.
  8. 　請求項７記載の照明装置において、
    　複数の前記照明用レンズを備え、
    　前記複数の照明用レンズは、互いに異なる照度分布を有する
    　ことを特徴とする照明装置。     The lighting device according to claim 7,
    comprising a plurality of said lighting lenses,
    The illumination device, wherein the plurality of illumination lenses have illuminance distributions different from each other.
  9. 　請求項７または８記載の照明装置を複数備え、
    　前記複数の照明装置は、前記道路の進行方向に千鳥配置となるように、前記道路に沿って配置されている
    　ことを特徴とする照明システム。     A plurality of lighting devices according to claim 7 or 8,
    The lighting system, wherein the plurality of lighting devices are arranged along the road in a zigzag arrangement in a traveling direction of the road.
  10. 　請求項１に記載の照明装置において、前記第１光は平行光であることを特徴とする照明装置。 The illumination device according to claim 1, wherein the first light is parallel light.
  11. 　請求項３に記載の照明装置において、前記第３光は平行光であることを特徴とする照明装置。 The illumination device according to claim 3, wherein the third light is parallel light.
PCT/JP2022/000762 2021-02-26 2022-01-12 Illumination lens, illuminating device, and illuminating system WO2022181091A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2023502149A JPWO2022181091A1 (en) 2021-02-26 2022-01-12
CN202280015430.3A CN116888403A (en) 2021-02-26 2022-01-12 Lighting lens, lighting device, and lighting system

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
WO2022181091A1 true WO2022181091A1 (en) 2022-09-01

Family

ID=83048795

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/000762 WO2022181091A1 (en) 2021-02-26 2022-01-12 Illumination lens, illuminating device, and illuminating system

Country Status (3)

Country Link
JP (1) JPWO2022181091A1 (en)
CN (1) CN116888403A (en)
WO (1) WO2022181091A1 (en)

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 (en) * 2010-12-23 2012-07-11 财团法人工业技术研究院 Road lighting device
KR101541826B1 (en) * 2014-04-28 2015-08-12 한국광기술원 Asymmetric type lens and tunner lighting using the same
JP2017162647A (en) * 2016-03-09 2017-09-14 岩崎電気株式会社 Light source unit, and street lighting fixture
CN208846331U (en) * 2018-09-30 2019-05-10 欧普照明股份有限公司 Light distribution element, light source module group and illuminator

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 (en) * 2010-12-23 2012-07-11 财团法人工业技术研究院 Road lighting device
KR101541826B1 (en) * 2014-04-28 2015-08-12 한국광기술원 Asymmetric type lens and tunner lighting using the same
JP2017162647A (en) * 2016-03-09 2017-09-14 岩崎電気株式会社 Light source unit, and street lighting fixture
CN208846331U (en) * 2018-09-30 2019-05-10 欧普照明股份有限公司 Light distribution element, light source module group and illuminator

Also Published As

Publication number Publication date
JPWO2022181091A1 (en) 2022-09-01
CN116888403A (en) 2023-10-13

Similar Documents

Publication Publication Date Title
KR102278912B1 (en) Lighting unit for a motor vehicle headlight for generating at least two light distributions
KR102036749B1 (en) Lamp for vehicle
US10336239B2 (en) Vehicle lamp and vehicle having the same
RU2456503C2 (en) Light beam former
JP7376583B2 (en) passing beam headlights
CN112781004A (en) Vehicle lamp
US20150131305A1 (en) Primary optical element, lighting module and headlamp for a motor vehicle
US20090213608A1 (en) Headlight lens for a vehicle headlight
US20170009951A1 (en) Light-Guiding Pillar and Vehicle Lamp using the Same
CN105637287A (en) Microprojection lighting module for a motor vehicle headlight
US9097401B2 (en) Light module for motor-vehicle headlight
US20080310166A1 (en) Toroidal Lens
US7954987B2 (en) Vehicle lamp
JP2016212962A (en) Luminaire
US9879837B2 (en) Optical structure for signal light
KR20200141248A (en) Lamp for vehicle
US10323823B2 (en) Lighting device, in particular fog light for motor vehicles
KR20190081690A (en) A lamp for vehicle
US20160363711A1 (en) Lighting system with improved illumination distribution and output luminance variation
US7061690B1 (en) Apparatus for establishing substantially uniform distribution of light
KR20050025993A (en) Illumination system
WO2022181091A1 (en) Illumination lens, illuminating device, and illuminating system
CN101629693B (en) Light distribution board having gratings with multiple focuses
KR101320869B1 (en) Lens of aspheric lighting
KR20220014690A (en) Lamp for vehicle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22759134

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202280015430.3

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2023502149

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22759134

Country of ref document: EP

Kind code of ref document: A1