JP4964100B2 - Road-mounted lamp - Google Patents

Description

  The present invention relates to a road-mounted lamp in which light emitted from a light source is collected by an elliptical reflecting surface of a reflector and then irradiated through a projection lens, and in particular, the road surface and the space above it. The present invention relates to a road-mounted lamp that can brightly illuminate both.

  Specifically, the present invention brightly illuminates the road surface of one lane and the space above it across the center line of the road, and the road surface of the other lane and above the space above the center line of the road. The present invention relates to a road-mounted lamp that can brightly illuminate a space.

  Conventionally, the reflector includes a light source, a reflector having an elliptical reflecting surface for condensing light emitted from the light source, and a projection lens for projecting reflected light from the elliptical reflecting surface of the reflector. There is known a road-mounted lamp in which a light source is disposed in the vicinity of a first focal point of an elliptical reflecting surface, and a second focal point of an elliptical reflecting surface of a reflector is disposed between the light source and a projection lens.

  As an example of this kind of road surface installation type lamp, there is one described in FIG. 2 of Japanese Patent Publication No. 61-12042, for example. In the road surface installation type lamp described in FIG. 2 of Japanese Patent Publication No. 61-12042, Japanese Patent Publication No. 61-12042 uses a reflector having a parabolic reflection surface by using a reflector having an elliptical reflection surface. The light use efficiency is improved as compared with the road surface-mounted lamp described in FIG.

  By the way, the road surface installation type lamp described in FIG. 2 of Japanese Patent Publication No. 61-12042 is used as a road marking light. In detail, for example, it is used as a road marking light for guiding an airplane on a runway.

  For this reason, in the road surface installation type lamp described in FIG. 2 of Japanese Patent Publication No. 61-12042, all of the light from the projection lens is irradiated toward the space above the road surface. As a result, the road surface installation type lamp described in FIG. 2 of Japanese Patent Publication No. 61-12042 cannot brightly illuminate the road surface itself with the light from the projection lens.

Figure 2 of Japanese Patent Publication No. 61-12042

  In view of the above problems, an object of the present invention is to provide a road surface installation type lamp that can brightly illuminate both a road surface and a space above the road surface.

  Specifically, the present invention brightly illuminates the road surface of one lane and the space above it across the center line of the road, and the road surface of the other lane and above the space above the center line of the road. An object of the present invention is to provide a road-mounted lamp that can brightly illuminate a space.

  According to the first aspect of the present invention, the first light source, the first reflector having the elliptical reflecting surface for collecting the light emitted from the first light source, and the elliptical reflecting surface of the first reflector are used. A first projection lens for projecting the reflected light, a second reflector having an elliptical reflecting surface for condensing the light emitted from the first light source, and reflection from the elliptical reflecting surface of the second reflector A second projection lens for projecting light, the first reflector being in the vicinity of the first focal point of the elliptical reflecting surface of the first reflector and in the vicinity of the first focal point of the elliptical reflecting surface of the second reflector. A light source is disposed, a second focal point of the elliptical reflecting surface of the first reflector is disposed between the first light source and the first projection lens, and a second focal point of the elliptical reflecting surface of the second reflector is the first light source. Light disposed between the second projection lens and irradiated from the first projection lens The main optical axis is oriented in a direction substantially perpendicular to the road center line and directed to one lane across the road center line, and the main optical axis of the light emitted from the second projection lens is A direction that is substantially perpendicular to the center line and is directed to the other lane across the center line of the road, and a part of the light from the first projection lens and a part of the light from the second projection lens There is provided a road surface installation type lamp that irradiates a road surface and irradiates a space above the road surface with a part of light from the first projection lens and a part of light from the second projection lens.

  According to the second aspect of the present invention, the first reflector / first projection lens light source and the second reflector / second projection lens light source are configured by the common first light source. Item 12. A road surface installation type lamp according to item 1 is provided.

  According to invention of Claim 3, the 1st reflector and the 2nd reflector were comprised by one member, The road surface installation type lamp of Claim 1 or 2 characterized by the above-mentioned is provided.

  According to the invention described in claim 4, the second light source, the third reflector having a reflecting surface for reflecting the light emitted from the second light source, and the reflected light from the reflecting surface of the third reflector are diffused. A third lens having a lens cut portion for causing the third light source, a third light source, a fourth reflector having a reflecting surface for reflecting light emitted from the third light source, and reflected light from the reflecting surface of the fourth reflector A fourth lens having a lens cut portion for diffusing the light, and directing the main optical axis of the light emitted from the third lens in one direction substantially parallel to the center line of the road, from the fourth lens The road surface installation type according to any one of claims 1 to 3, wherein the main optical axis of the irradiated light is directed in a direction opposite to the main optical axis of the light irradiated from the third lens. A light fixture is provided.

  According to the fifth aspect of the present invention, the first reflex reflector is disposed at a position facing one direction substantially parallel to the center line of the road among the side surfaces of the road surface-mounted lamp, The road surface installation type lamp according to any one of claims 1 to 3, wherein a second reflex reflector is arranged at a position facing the other direction substantially parallel to the center line of the road among the side surfaces. Is provided.

  According to invention of Claim 6, the 1st light source has been arrange | positioned on the baseplate of the road surface installation type lamp, The road surface installation type lamp as described in any one of Claims 1-5 provided The

  The road surface-mounted lamp according to claim 1, wherein the first light source, the first reflector having an elliptical reflecting surface for condensing the light emitted from the first light source, and the elliptical reflecting surface of the first reflector are provided. And a first projection lens for projecting reflected light from the first projection lens. Further, the first light source is disposed in the vicinity of the first focal point of the elliptical reflecting surface of the first reflector, and the second focal point of the elliptical reflecting surface of the first reflector is between the first light source and the first projection lens. Has been placed.

  Furthermore, in the road surface-mounted lamp according to claim 1, the main optical axis of the light emitted from the first projection lens is in a direction substantially perpendicular to the center line of the road and is separated from the center line of the road. Directed to one side lane.

  Specifically, in the road surface-mounted lamp according to claim 1, the light from the first projection lens is applied to the road surface of one lane across the center line of the road, and above the road surface. The space is irradiated.

  Therefore, according to the road surface installation type lamp according to claim 1, the road surface of the lane on one side and the space above it can be brightly illuminated across the center line of the road.

  In the road surface-mounted lamp according to claim 1, the second reflector having an elliptical reflecting surface for condensing the light emitted from the first light source and the reflection from the elliptical reflecting surface of the second reflector. A second projection lens for projecting light is provided. Further, the first light source is disposed in the vicinity of the first focal point of the elliptical reflecting surface of the second reflector, and the second focal point of the elliptical reflecting surface of the second reflector is between the first light source and the second projection lens. Has been placed.

  Furthermore, in the road surface-mounted lamp according to claim 1, the main optical axis of the light emitted from the second projection lens is in a direction substantially perpendicular to the center line of the road and separates the center line of the road. Directed to the other lane.

  Specifically, in the road surface-mounted lamp according to claim 1, the light from the second projection lens is applied to the road surface of the other lane across the center line of the road, and above the road surface. The space is irradiated.

  Therefore, according to the road surface installation type lamp according to the first aspect, the road surface of the lane on the other side and the space above it can be brightly illuminated across the center line of the road.

  In other words, according to the road surface installation type lamp according to claim 1, the road surface of the lane on one side and the space above the road are brightly illuminated across the center line of the road, and the other side is separated through the center line of the road. Can brightly illuminate the road surface and the space above it.

  As a result, according to the road surface installation type lamp according to claim 1, unlike the simple road surface marker lamp described in FIG. 2 of Japanese Patent Publication No. 61-12042, for example, the light is emitted from the road surface installation type lamp. Road vehicles, pedestrians, etc. can quickly find dangerous objects, obstacles, etc. in front of the road.

  Specifically, according to the road surface installation type lamp according to claim 1, the road surface installation type lamp is used to indicate the road surface state at a position far from the traveling vehicle to the extent that the light from the headlight of the traveling vehicle on the road does not reach. It can be grasped to some extent by the light emitted from.

  In the road surface installation type lamp according to claim 2, the first reflector / first projection lens light source and the second reflector / second projection lens light source are constituted by the shared first light source. In other words, in the road surface installation type lamp according to claim 2, the light source for the first reflector / first projection lens and the light source for the second reflector / second projection lens are combined. Therefore, according to the road surface installation type lamp according to claim 2, than the case where the light source for the first reflector and the first projection lens and the light source for the second reflector and the second projection lens are provided separately, The cost of the entire road surface installation type lamp can be suppressed.

  In the road surface installation type lamp according to claim 3, the first reflector and the second reflector are constituted by one member. Therefore, according to the road surface installation type lamp of Claim 3, the assembly cost of a road surface installation type lamp can be suppressed rather than the case where the 1st reflector and the 2nd reflector are comprised by the separate member. .

  In the road surface installation type lamp according to claim 4, the light emitted from the second light source is reflected by the reflecting surface of the third reflector, and then is diffused and irradiated by the lens cut portion of the third lens.

  Specifically, in the road surface-mounted lamp according to the fourth aspect, the main optical axis of the light emitted from the third lens is directed in one direction substantially parallel to the center line of the road.

  Furthermore, in the road surface-mounted lamp according to claim 4, the light emitted from the third light source is reflected by the reflecting surface of the fourth reflector, and then diffused and irradiated by the lens cut portion of the fourth lens. The

  Specifically, in the road surface-mounted lamp according to claim 4, the main optical axis of the light emitted from the fourth lens is directed in the opposite direction to the main optical axis of the light emitted from the third lens. ing.

  Therefore, according to the road surface installation type lamp according to claim 4, the light of the third lens and the light irradiated from the fourth lens are separated from the center line of the road by one side of the lane on the one side. A traveling vehicle, a pedestrian, etc. can recognize the center line of a road. Further, the other of the light emitted from the third lens and the light emitted from the fourth lens allows the traveling vehicle, pedestrians, etc. of the other lane to recognize the road center line across the road center line. be able to.

  In the road surface installation type lamp according to claim 5, the first reflex reflector is arranged at a position facing one direction substantially parallel to the center line of the road on the side surface of the road surface installation type lamp. Furthermore, the 2nd reflex reflector is arrange | positioned in the position facing the other direction substantially parallel to the center line of a road among the side surfaces of a road surface installation type lamp.

  Therefore, according to the road surface installation type lamp according to claim 5, one of the reflected light from the first reflex reflector and the reflected light from the second reflex reflector is separated from the road center line on one side. It is possible to make the traveling vehicle in the lane recognize the center line of the road. Further, the other side of the reflected light from the first reflex reflector and the reflected light from the second reflex reflector allows the traveling vehicle in the other lane to recognize the road center line across the road center line. it can.

  In the road surface installation type lamp according to claim 6, the first light source is arranged on the bottom plate of the road surface installation type lamp. That is, in the road surface installation type lamp according to claim 6, the first light source is arranged at the lowest position of the road surface installation type lamp. Therefore, according to the road surface installation type lamp according to claim 6, the height direction dimension of the road surface installation type lamp is suppressed as compared with the case where the first light source is disposed at a relatively high position of the road surface installation type lamp. be able to.

  Hereinafter, a first embodiment of a road surface-mounted lamp according to the present invention will be described. 1 is a perspective view of a road surface installation type lamp 100 of the first embodiment, FIG. 2 is a perspective view seen through the bottom plate 4 and the housing 5 in FIG. 1, and FIG. 3 is a bottom plate 4 and the housing in FIG. 5 is a perspective view seen through a different angle from FIG. FIG. 4 shows the first along the vertical plane including the main optical axis L1a of the light L1a ′, L1a ″ irradiated from the projection lens 3a and the main optical axis L1b of the light L1b ′, L1b ″ irradiated from the projection lens 3b. It is sectional drawing of the road surface installation type lamp 100 of 1 embodiment. FIG. 5 is a cross-sectional view of the road surface installation type lamp 100 of the first embodiment along a vertical plane including a main optical axis L11a of light irradiated from the lens 13a and a main optical axis L11b of light irradiated from the lens 13b. FIG. FIG. 6 is a perspective view showing a state in which a plurality of road surface installation type lamps 100 are arranged on the center line CL of the road of the left curve.

  In the road surface installation type lamp 100 of the first embodiment, as shown in FIG. 4, the light source 1 such as an LED is disposed on the bottom plate 4 of the road surface installation type lamp 100. In the road surface installation type lamp 100 of the first embodiment, for example, an LED is used as the light source 1, but in the road surface installation type lamp of the second embodiment, instead of an LED such as a light bulb, for example. Can also be used as the light source 1.

  In the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG. 4, while the light source 1 is arrange | positioned in the vicinity of the 1st focus of the elliptical reflective surface 2a1 of the 1st reflector part 2a of the reflector 2, The reflector 2 is disposed in the vicinity of the first focal point of the elliptical reflecting surface 2b1 of the second reflector portion 2b of the reflector 2.

  In detail, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG. 4, some light radiated | emitted from the light source 1 is reflected by the elliptical reflective surface 2a1 of the 1st reflector part 2a. The light is condensed in the vicinity of the second focal point f2a of the elliptical reflecting surface 2a1. Next, the reflected light from the elliptical reflecting surface 2a1 that spreads radially from the vicinity of the second focal point f2a of the elliptical reflecting surface 2a1 is condensed by the projection lens 3a, and is gathered as light L1a ′ and L1a ″. Irradiates the lane on the right side of the center line CL (see FIG. 6).

  Moreover, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG. 4, some light radiated | emitted from the light source 1 is reflected by the elliptical-type reflective surface 2b1 of the 2nd reflector part 2b, and is elliptical. The light is condensed near the second focal point f2b of the system reflection surface 2b1. Next, the reflected light from the elliptical reflection surface 2b1 that spreads radially from the vicinity of the second focal point f2b of the elliptical reflection surface 2b1 is condensed by the projection lens 3b, and is gathered as light L1b ′ and L1b ″. Irradiates the left lane of the center line CL (see FIG. 6).

  That is, in the road surface-mounted lamp 100 of the first embodiment, as shown in FIGS. 4 and 6, the main optical axis L1a of the light L1a ′, L1a ″ irradiated from the projection lens 3a is the center line CL of the road. Is directed to the lane on the right side of the road center line CL (the right side in FIGS. 4 and 6), in detail, the light L1a ′ from the projection lens 3a is Is irradiated onto the road surface 10 of the right lane of the center line CL, and the light L1a "from the projection lens 3a is irradiated onto the space above the road surface 10. Therefore, according to the road surface installation type lamp 100 of 1st Embodiment, the road surface 10 of the lane on the right side of the center line CL of a road, and the space above it can be illuminated brightly.

  Moreover, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG.4 and FIG.6, the main optical axis L1b of light L1b 'and L1b "irradiated from the projection lens 3b is the centerline CL of a road. Is directed to the lane on the left side of the road center line CL (left side in FIGS. 4 and 6), in detail, the light L1b ′ from the projection lens 3b is Is irradiated onto the road surface 10 of the lane on the left side of the center line CL, and the light L1b ″ from the projection lens 3b is irradiated onto the space above the road surface 10. Therefore, according to the road surface installation type lamp 100 of 1st Embodiment, the road surface 10 of the lane on the left side of the center line CL of a road, and the space of the upper side can be illuminated brightly.

  As a result, according to the road surface installation type lamp 100 of the first embodiment, unlike the simple road surface marker lamp described in FIG. 2 of, for example, Japanese Patent Publication No. 61-12042, the road surface installation type lamp 100 emits light. Lights L1a ′, L1a ″, L1b ′, and L1b ″ enable a vehicle traveling on the road, a pedestrian, and the like to detect dangerous objects and obstacles in front of the road at an early stage.

  In detail, according to the road surface installation type lamp 100 of 1st Embodiment, the condition of the road surface 10 of the position away from a traveling vehicle is the road surface so that the light from the headlamp of the traveling vehicle of a road does not reach. It can be grasped to some extent by the light L1a ′, L1a ″, L1b ′, L1b ″ emitted from the installation lamp 100.

  Furthermore, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG. 4, it uses as a light source for the 1st reflector part 2a and the projection lens 3a, and a light source for the 2nd reflector part 2b and the projection lens 3b. The light source 1 is used. In other words, in the road surface installation type lamp 100 of the first embodiment, the light source 1 for the first reflector unit 2a / projection lens 3a and the light source 1 for the second reflector unit 2b / projection lens 3b are combined. Therefore, according to the road surface installation type lamp 100 of 1st Embodiment, the light source for 1st reflector part 2a and the projection lens 3a and the light source for 2nd reflector part 2b and the projection lens 3b are provided separately. The cost of the road surface installation type lamp 100 as a whole can be suppressed.

  Moreover, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG.2, FIG3 and FIG.4, the 1st reflector part 2a and the 2nd reflector part 2b are comprised as the reflector 2 of one member. . Therefore, according to the road surface installation type lamp 100 of 1st Embodiment, the assembly cost of the road surface installation type lamp 100 is compared with the case where the 1st reflector part 2a and the 2nd reflector part 2b are comprised as a separate reflector. Can be suppressed.

  In detail, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG. 4, in order to permeate | transmit the reflected light from the elliptical reflective surface 2a1 of the 1st reflector part 2a, and the projection lens 3a is used. An opening 5 a for attachment is formed in the housing 5. An opening 5b is formed in the housing 5 for transmitting the reflected light from the elliptical reflecting surface 2b1 of the second reflector portion 2b and for attaching the projection lens 3b.

  Furthermore, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG. 5, the light source 11a like LED, for example, is narrow (the dimension of the near side-back side direction of FIG. 5 is small). The plate-shaped member 6 a is disposed on the bottom plate 4 of the road surface installation type lamp 100. Further, for example, a light source 11b such as an LED is disposed on a narrow plate-like member 6b (the size in the front-back direction in FIG. 5 is small), and the plate-like member 6b is the bottom plate 4 of the road surface installation type lamp 100. Is placed on top. In the road surface installation type lamp 100 of the first embodiment, for example, red and yellow LEDs are used as the light sources 11a and 11b. However, in the road surface installation type lamp of the third embodiment, instead, for example, It is possible to use light sources 11a and 11b other than LEDs such as light bulbs.

  In the road surface installation type lamp 100 according to the first embodiment, as shown in FIG. 5, the light source 11a is disposed in the vicinity of the focal point of the parabolic reflection surface 12a1 of the reflector 12a, and the light source 11b is disposed of the reflector 12b. It is arranged in the vicinity of the focal point of the parabolic reflection surface 12b1.

  Furthermore, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG. 5, some light radiated | emitted from the light source 11a is reflected by the parabolic reflection surface 12a1 of the reflector 12a. Next, the substantially horizontal reflected light from the parabolic reflecting surface 12a1 is diffused and irradiated by the lens cut portion 13a1 of the lens 13a. Specifically, in the road surface installation type lamp 100 of the first embodiment, the main optical axis L11a of the light emitted from the lens 13a is in one direction (upward in FIG. 6) substantially parallel to the road centerline CL. It is oriented.

  Moreover, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG. 5, some light radiated | emitted from the light source 11b is reflected by the parabolic reflection surface 12b1 of the reflector 12b. Next, the substantially horizontal reflected light from the parabolic reflecting surface 12b1 is diffused and irradiated by the lens cut portion 13b1 of the lens 13b. In detail, in the road surface installation type lamp 100 of 1st Embodiment, the main optical axis L11b of the light irradiated from the lens 13b is opposite to the main optical axis L11a of the light irradiated from the lens 13a (FIG. 6). Is directed downward).

  Therefore, according to the road surface installation type lamp 100 of the first embodiment, the road centerline is provided to a vehicle traveling downward in FIG. 6, a pedestrian walking downward in FIG. CL can be recognized. Furthermore, the road centerline CL can be recognized by the light emitted from the lens 13b by a vehicle traveling upward in FIG. 6, a pedestrian walking upward in FIG.

  In detail, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG. 5, in order to permeate | transmit the reflected light from the parabolic reflection surface 12a1 of the reflector 12a, and for attaching the lens 13a An opening 5 c is formed in the housing 5. Further, an opening 5d for transmitting the reflected light from the parabolic reflecting surface 12b1 of the reflector 12b and for attaching the lens 13b is formed in the housing 5.

  In the road surface mounted lamp 100 according to the first embodiment, in order for a vehicle traveling downward in FIG. 6 to recognize the center line CL of the road, as shown in FIG. 5, a light source 11a, a reflector 12a, and a lens 13a. However, in the road surface installation type lamp of the fourth embodiment, the light source 11a, the reflector 12a, and the lens 13a are omitted, and instead, a reflex reflector is disposed at the position of the lens 13a in FIG. It is also possible to do. According to the road surface installation type lamp 100 of 4th Embodiment, the vehicle which drive | works below FIG. 6 can recognize the centerline CL of a road with the reflected light from the reflex reflector.

  Similarly, in the road surface installation type lamp 100 according to the first embodiment, as shown in FIG. 5, a light source 11 b, a reflector 12 b, The road surface installation type lamp of the fourth embodiment omits the light source 11b, the reflector 12b, and the lens 13b, and instead, at the position of the lens 13b in FIG. 5, the lens 13b is provided. It is also possible to arrange a reflector. According to the road surface installation type lamp 100 of 4th Embodiment, the centerline CL of a road can be recognized by the vehicle which drive | works upward of FIG. 6 with the reflected light from the reflex reflector.

  Furthermore, in the road surface installation type lamp 100 of the first embodiment, the light source 1 is disposed on the bottom plate 4 of the road surface installation type lamp 100 as shown in FIG. That is, the light source 1 is arranged at the lowest position of the road surface installation type lamp 100. Therefore, according to the road surface installation type lamp 100 of 1st Embodiment, the height direction dimension of the road surface installation type lamp 100 is compared with the case where the light source 1 is arrange | positioned in the comparatively high position of the road surface installation type lamp 100. Can be suppressed.

  Moreover, in the road surface installation type lamp 100 of 1st Embodiment, as shown in FIG. 4, the 1st reflector part 2a and the projection lens 3a, the 2nd reflector part 2b, and the projection lens 3b are the main optical axis lines L11a, It is configured in a mirror image relationship with respect to a vertical plane including L11b (see FIG. 5). Further, as shown in FIG. 5, the light source 11a, the support member 6a, the reflector 12a and the lens 13a, and the light source 11b, the support member 6b, the reflector 12b and the lens 13b have the main optical axis lines L1a and L1b (see FIG. 4). It is configured in a mirror image relationship with respect to the vertical plane.

  In detail, in the road surface installation type lamp 100 of 1st Embodiment, although the projection lenses 3a and 3b are comprised in convex shape in the vertical cross section, as shown in FIG. 4, FIG.2 and FIG.3. As shown in FIG. 5, the inner surfaces (surfaces on the light source 1 side) and the outer surfaces (surfaces on the opposite side of the light source) of the projection lenses 3a and 3b are substantially parallel in the horizontal section. Therefore, in the road surface installation type lamp 100 according to the first embodiment, the reflected light from the elliptical reflective surface 2a1 that spreads radially from the vicinity of the second focal point f2a of the elliptical reflective surface 2a1 in the horizontal direction is projected to the projection lens 3a. , And is emitted from the projection lens 3a as light traveling while spreading radially in the horizontal direction. Also, the reflected light from the elliptical reflecting surface 2b1 that travels while spreading radially from the vicinity of the second focal point f2b of the elliptical reflecting surface 2b1 is transmitted through the projection lens 3b and travels while spreading radially in the horizontal direction. Irradiated from the projection lens 3b as light.

  In the fifth embodiment, the above-described first to fourth embodiments can be appropriately combined.

It is a perspective view of the road surface installation type lamp 100 of 1st Embodiment. FIG. 2 is a perspective view seen through a bottom plate 4 and a housing 5 in FIG. 1. FIG. 3 is a perspective view of the bottom plate 4 and the housing 5 in FIG. 1 as seen from an angle different from that in FIG. 2. First implementation along a vertical plane including the main optical axis L1a of the light L1a ′, L1a ″ irradiated from the projection lens 3a and the main optical axis L1b of the light L1b ′, L1b ″ irradiated from the projection lens 3b It is sectional drawing of the road surface installation type lamp 100 of a form. It is sectional drawing of the road surface installation type lamp | ramp 100 of 1st Embodiment along the vertical plane containing the main optical axis L11a of the light irradiated from the lens 13a, and the main optical axis L11b of the light irradiated from the lens 13b. . It is the perspective view which showed the condition where the some road surface installation type lamp | ramp 100 was arranged on the center line CL of the road of a left curve.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light source 2 Reflector 2a, 2b Reflector part 2a1, 2b1 Elliptic reflection surface 3a, 3b Projection lens 4 Base plate 5 Housing 5a, 5b, 5c, 5d Aperture 6a, 6b Support member 10 Road surface 11a, 11b Light source 12a, 12b Reflector 12a1, 12b1 Parabolic reflecting surfaces 13a, 13b Lenses 13a1, 13b1 Lens cut part 100 Road surface installation type lamp CL Center line

Claims (6)

A first light source, a first reflector having an elliptical reflecting surface for condensing light emitted from the first light source, and a first projection for projecting reflected light from the elliptical reflecting surface of the first reflector A second reflector having an elliptical reflecting surface for condensing light emitted from the first light source, and a second projection lens for projecting reflected light from the elliptical reflecting surface of the second reflector; Comprising
A first light source is disposed in the vicinity of the first focal point of the elliptical reflecting surface of the first reflector and in the vicinity of the first focal point of the elliptical reflecting surface of the second reflector, and the first reflecting surface of the elliptical reflecting surface of the first reflector is arranged. Two focal points are arranged between the first light source and the first projection lens, a second focal point of the elliptical reflecting surface of the second reflector is arranged between the first light source and the second projection lens,
Directing the main optical axis of the light emitted from the first projection lens in a direction substantially perpendicular to the center line of the road and to the lane on one side across the center line of the road,
The main optical axis of the light emitted from the second projection lens is oriented in a direction substantially orthogonal to the center line of the road and is directed to the other lane across the center line of the road,
Irradiating the road surface with a part of the light from the first projection lens and a part of the light from the second projection lens;
A road surface installation type lamp characterized by irradiating a part of the light from the first projection lens and a part of the light from the second projection lens to a space above the road surface.   The road-mounted lamp according to claim 1, wherein the first light source for the first reflector and the light source for the first projection lens and the light source for the second reflector and the second projection lens are configured by the common first light source.   The road surface installation type lamp according to claim 1 or 2, wherein the first reflector and the second reflector are constituted by one member. A third lens having a second light source, a third reflector having a reflecting surface for reflecting light emitted from the second light source, and a lens cut portion for diffusing reflected light from the reflecting surface of the third reflector And a third light source, a fourth reflector having a reflection surface for reflecting light emitted from the third light source, and a lens cut portion for diffusing reflected light from the reflection surface of the fourth reflector. 4 lenses,
Directing the main optical axis of the light emitted from the third lens in one direction substantially parallel to the center line of the road,
4. The main optical axis of light emitted from the fourth lens is directed in a direction opposite to the main optical axis of light emitted from the third lens. 5. Road surface installation type lamp. The first reflex reflector is disposed at a position facing one direction substantially parallel to the center line of the road on the side surface of the road surface-mounted lamp,
4. The second reflex reflector is disposed at a position facing the other direction substantially parallel to the center line of the road among the side surfaces of the road surface-mounted lamp. 5. Road surface installation type lamp.   The road surface installation type lamp according to any one of claims 1 to 5, wherein a first light source is arranged on a bottom plate of the road surface installation type lamp.

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