JP2008074294A - Infrared light reflector, and motorcycle and helmet provided with infrared light reflector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an infrared light reflector reduced in restriction regarding an installation position even if it is installed at a vehicle. <P>SOLUTION: The infrared light reflectors 10, 11 and 12 are constituted in such a manner that a visible light cutting filter 200 for shutting off a visible light component and transmitting infrared light is adhered and fixed to the surface of a general light reflector 100 for reflecting visible light and the infrared light. The light reflector 100 mainly comprises a support plate 101, a light reflection plate 102 fixed to the main surface of the support plate 101 and a micro-prism 103 fixed to the main surface of the light reflection plate 102. The visible light cutting filter 200 is constituted by generally coating a gray type or a black type visible light cutting filter material, so-called a smoke material or adhering a tape-like visible light cutting filter. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an infrared light reflector, and a motorcycle and a helmet equipped with the infrared light reflector, and in particular, a visible light cut filter and an optical reflector that shield visible light and selectively transmit only infrared light. And a two-wheeled vehicle and a helmet equipped with the infrared light reflector.

  Intelligent transport systems (ITS) have been studied for the purpose of solving various problems of road traffic. In this ITS, the development of a system that recognizes vehicles using infrared light that can be detected stably regardless of the day or night and regardless of the weather.

In Patent Literature 1, an infrared sensor that detects a vehicle in a roundabout and an infrared sensor that detects a vehicle that enters the roundabout from a road are installed, and when the infrared sensor detects the vehicle, this is displayed. A technology is disclosed in which a bulletin board provided with a display device is installed where it can be seen from each road, and that the infrared sensor detects that the vehicle is transmitted to the in-vehicle device of the vehicle and displays the display device of the vehicle. ing. Patent Document 2 discloses a technique for projecting infrared light onto a target object and obtaining a distance to the target object based on the reflected light.
Japanese Patent Laying-Open No. 2005-301884 JP 2005-77130 A

  In order for an infrared camera to recognize an object such as a vehicle at night, an infrared light source is mounted on the object to actively emit infrared light by itself, or infrared light emitted from an infrared light. Must be passively reflected. Here, in order to actively emit infrared light, a power source for driving the infrared light source, wiring and the like are required.

  On the other hand, a light reflector for passively reflecting infrared light does not require a power supply, but conventional light reflectors reflect not only infrared light but also visible light as well. Like the front part, it cannot be installed in a part where the installation of reflectors is restricted by the safety standards of road transport vehicles.

  Furthermore, the optical reflector has a high degree of design freedom with respect to its installation position (arrangement), shape, area, and amount of reflected light (intensity), and by devising these features, for example, four vehicles equipped with optical reflectors can be provided. Since discriminating power such as whether a wheeled vehicle or a two-wheeled vehicle can be given, the utility value is also high in this respect.

  An object of the present invention is to solve the above-described problems of the prior art and provide an infrared reflector with less restrictions on the installation location even when installed in a vehicle, and a two-wheeled vehicle and a helmet equipped with the infrared reflector. is there.

  In order to achieve the above object, the present invention includes the following means.

  (1) An infrared light reflector for a vehicle according to claim 1 is disposed on a surface of the light reflector that reflects at least visible light and infrared light, and shields visible light and transmits infrared light. And a visible light cut filter.

  (2) The vehicle infrared light reflector according to claim 2 is configured by adhering a tape-shaped visible light cut filter to a surface of the light reflector.

  (3) The two-wheeled vehicle according to claim 3, wherein an infrared light reflector is attached to at least one of a front surface and both side surfaces of the vehicle, and the infrared light reflector reflects at least visible light and infrared light; And a visible light cut filter disposed on the surface of the light reflector.

  (4) The two-wheeled vehicle according to claim 4 is characterized in that the infrared light reflector is mounted on the front part of the left and right side mirrors.

  (5) The two-wheeled vehicle according to claim 5 is characterized in that the infrared light reflector is mounted on the front part of the front fender.

  (6) The two-wheeled vehicle according to claim 6 is characterized in that the infrared light reflector is configured by adhering a tape-shaped visible light cut filter to the surface of the light reflector.

  (7) The helmet according to claim 7, wherein an infrared light reflector is attached to at least one of a front part and an upper part, and the infrared light reflector reflects at least visible light and infrared light, and the light reflector And a visible light cut filter disposed on the surface of the substrate.

  (8) The helmet according to claim 8 is characterized in that the infrared light reflector is formed by adhering a tape-shaped visible light cut filter to the surface of the light reflector.

  According to the present invention, the following effects are achieved.

  (1) Since the vehicle infrared light reflector according to claim 1 can be configured by arranging a visible light cut filter on the surface of the light reflector, a general light reflector that reflects not only infrared light but also visible light is provided. This makes it possible to easily construct an infrared light reflector.

  In addition, in the vehicle infrared light reflector, an optical filter that cuts visible light is generally configured using a gray or black visible light cut filter material called a smoke material, so that the color of the reflector surface can be reduced. Can be gray or black.

  (2) According to the vehicle infrared light reflector of claim 2, the vehicle infrared light reflector can be configured only by adhering the tape-like visible light cut filter to the surface of the light reflector.

  (3) Since the two-wheeled vehicle of claim 3 has the infrared light reflector mounted on at least one of the front surface and both side surfaces of the vehicle, the reflected light from the infrared light reflector on the front surface of the vehicle can be reflected even when the headlight is not lit. It can be detected by an infrared camera. In addition, the vehicle side surface can be recognized by a vehicle equipped with a vehicle-mounted infrared irradiation night vision camera.

  (4) In the two-wheeled vehicle according to claims 4 and 5, since the infrared light reflectors are attached to the front part of the left and right side mirrors and the front part of the front fender, the infrared light reflector can be attached to the existing dead space.

  (5) According to the two-wheeled vehicle of the sixth aspect, the infrared light reflector can be configured simply by adhering the tape-shaped visible light cut filter to the surface of the light reflector.

  (6) Since the helmet according to claim 7 has the infrared light reflector mounted on the front part and the upper part, the infrared sensor can detect itself even when riding in a vehicle not equipped with the infrared light reflector. .

  (7) According to the helmet of claim 8, the infrared light reflector can be configured only by adhering the tape-shaped visible light cut filter to the surface of the light reflector.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the best embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a right side view of a two-wheeled vehicle equipped with the vehicle infrared light reflector of the present invention, and FIG. 2 is a front view thereof. Here, the body frame is covered with a front cowl 2, a lower cowl 3, and a rear cowl 4. The scooter type motorcycle 1 will be described as an example.

  A front wheel WF is provided at the front of the vehicle body, and a front fork 6 that supports the front wheel WF is connected to a steering handle 5 via a steering shaft (not shown). A rear wheel WR which is a drive wheel is provided at the rear of the vehicle body. The steering handle 5 is provided with a pair of left and right side mirrors 6L and 6R. From the rear of the occupant seat 7 in which the driver's seat 7a and the passenger's seat 7b are integrally formed, an antenna 8 is erected upward.

  The front cowl 2 is fitted with a pair of left and right infrared light reflectors 10L and 10R that reflect infrared light irradiated from an obliquely upper front of the vehicle. Infrared light reflectors 11L and 11R are also mounted in front of the side mirrors 6L and 6R, respectively. Further, the rear cowl 4 is also equipped with a pair of left and right infrared reflectors 12L and 12R that reflect infrared light irradiated from the side of the vehicle.

  FIG. 3 is a cross-sectional view showing the configuration of the first embodiment of the infrared reflectors 10, 11, 12, and is visible on the surface 104 of a general optical reflector 100 that reflects visible light and infrared light. The visible light cut filter 200 that shields light components and transmits infrared light is bonded and fixed.

  The optical reflector 100 mainly includes a support plate 101 and a microprism (corner cut reflector) 103 fixed to the main surface of the support plate 101. The microprism 103 can be made of an acrylic material, for example. The reflective surface (back surface) of the microprism 103 may be coated with a light reflecting film 102 as necessary.

  The visible light cut filter 200 is generally formed by applying a gray or black visible light cut filter material called a smoke material or adhering a tape-shaped visible light cut filter. Therefore, the surfaces of the infrared light reflectors 10, 11, and 12 are visually gray or black, and are also installed at locations where the installation of red, orange, and white reflectors is restricted, for example, at the front of the vehicle. it can.

  Since the light reflector 100 retroreflects incident light (infrared light), each of the infrared light reflectors 10, 11, and 12 is directed to each part of the vehicle in a posture in which the surface of the light reflector 100 is directed to the infrared light source. It is desirable to be installed.

  FIG. 4 is a cross-sectional view showing the configuration of the second embodiment of the infrared reflectors 10, 11, and 12, and the same reference numerals as those described above represent the same or equivalent parts.

  In the present embodiment, a plate-shaped visible light cut filter plate 300 that blocks visible light components and transmits infrared light is separated by a distance Δd in front of the surface of the light reflector 100 that reflects visible light and infrared light. Installed. The visible light cut filter plate 300 is also gray or black.

  Thus, according to this embodiment, since the infrared light reflector can be configured by bonding or arranging the visible light cut filter materials 200 and 300 on the front portion of the light reflector 100, the color of the surface of the light reflector 100 can be changed. Regardless, the infrared reflector surface color can be gray or black. Therefore, for example, an optical reflector capable of reflecting infrared light can be installed at the front part of the vehicle where the installation of the optical reflector is prohibited by safety standards or the like.

  FIG. 5 is a perspective view of a helmet according to the third embodiment of the present invention, and FIG. 6 is a side view thereof. Infrared light reflectors 13 and 14 are respectively provided on the front, top, rear and both sides of the helmet. 15 and 16 are attached.

  The infrared light reflectors 13, 14, 15, 16 (L, R) of the present embodiment shield visible light from the surface of a general reflecting tape that reflects infrared light and visible light, and infrared light is not reflected. A tape-shaped infrared filter to be transmitted is attached. In the present embodiment, the infrared reflector is described as being attached to a total of five locations on the front, top, rear, and both sides of the helmet, but may be attached to only a part thereof.

1 is a right side view of a scooter type motorcycle equipped with an infrared reflector for a vehicle of the present invention. 1 is a front view of a scooter type motorcycle equipped with an infrared light reflector for a vehicle of the present invention. It is sectional drawing of 1st Embodiment of the infrared-light reflector which concerns on this invention. It is sectional drawing of 2nd Embodiment of the infrared-light reflector which concerns on this invention. 1 is a perspective view of a helmet according to the present invention. 1 is a side view of a helmet according to the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 2 ... Front cowl, 3 ... Lower cowl, 4 ... Rear cowl, 6 ... Side mirror, 10-16 ... Infrared light reflector, 100 ... Light reflector, 101 ... Support plate, 102 ... Light reflecting film, 103 ... Micro prism, 200, 300: Visible light cut filter

Claims (8)

In an infrared light reflector for vehicles,
An optical reflector that reflects at least visible and infrared light;
An infrared light reflector for vehicles, comprising: a visible light cut filter which is disposed on a surface of the light reflector and shields visible light and transmits infrared light.   The vehicle infrared light reflector according to claim 1, wherein the visible light cut filter has a tape shape and is adhered to a surface of the light reflector. In a motorcycle equipped with an infrared light reflector on at least one of the front and both sides of the vehicle,
The infrared light reflector is
An optical reflector that reflects at least visible and infrared light;
A two-wheeled vehicle including a visible light cut filter disposed on a surface of the light reflector and configured to shield visible light and transmit infrared light.   The two-wheeled vehicle according to claim 3, wherein the infrared light reflector is provided in front portions of left and right side mirrors.   The two-wheeled vehicle according to claim 3 or 4, wherein the infrared light reflector is installed in a front portion of a front fender.   The two-wheeled vehicle according to any one of claims 3 to 5, wherein the visible light cut filter has a tape shape and is adhered to a surface of the light reflector. In a helmet in which an infrared light reflector is attached to at least one of the front part and the upper part,
The infrared light reflector is
An optical reflector that reflects at least visible and infrared light;
A helmet that includes a visible light cut filter that is disposed on a surface of the light reflector and shields visible light and transmits infrared light.   The helmet according to claim 7, wherein the visible light cut filter has a tape shape and is adhered to a surface of the light reflector.

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