JP3906573B2 - Beacon light - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sign lamp used for traffic signs and the like in airports and roads.
[0002]
[Prior art]
In order to display the width of the runway or taxiway at the airport or the shoulder position of the road, there are sign lights installed on the ground surface along the roadside. This ground-type beacon lights have the function of notifying the presence or absence of a road shoulder to the driver or driver of an aircraft or automobile traveling on the road, and functioning to safely guide the road.
[0003]
And this beacon is not required to emit light evenly from almost the entire surface of the lamp, but it emits high light in a narrow angle range that can be seen by the driver and driver. light distribution standard for road lamp is of as shown in FIG.
[0004]
The taxiway lights 9 of conventional land-shaped, as shown in FIG. 3, the light source, for example an incandescent light bulb 91 is used, the unevenness 92 on the outer surface surrounds bulb 91 to obtain a light distribution of FIG. 4 A cylindrical lens 93 is provided. In addition, since the light emission color of the guide road light 9 is defined as blue, the translucent globe 94 constituting the envelope containing the light bulb 91 and the lens 93 is colored and used as a filter. In the figure, 95 is a cover member, 96 is a socket base, and 97 is a power supply line.
[0005]
[Problems to be solved by the invention]
However, such an inductive lamp 9 uses an incandescent bulb 91 as a light source, so that when the red component has a high red component and emits blue light, there is a problem that it is difficult to obtain a light emission efficiency and a preferable radiant color. was there. In addition, since the light bulb 91 is a light source wound with a thin tungsten wire, it has a relatively short life, and the airport and road are broken early when a large vibration or impact is applied when passing an aircraft or a vehicle. There is also.
[0006]
Therefore, the present inventor has further studied and investigated various means for improving the light distribution characteristics and the lifetime of the light emitter. As a result, LED lamps (light-emitting diode lamps) that are separate from light bulbs that can improve the light emission and the efficiency and life of the light emitter have been successfully incorporated into the marker lamp.
[0007]
In the present invention, a large number of LED lamps (light emitting diode lamps) are arranged, a part of which is used as direct light, and most of the light is radiated within a desired angular range around the light emission (light distribution). Characteristics) It is an object to provide a marker lamp that improves efficiency and extends the life of a light source unit.
[0008]
[Means for Solving the Problems]
Marker light according to claim 1 of the present invention includes a substrate, a plurality of LED lamps erected on the base body, are arranged to face to these LED lamps, the light emitted from the LED lamp of the central portion A light control member having a substantially funnel shape in which the inside of the hollow portion is caused to travel straight and diffused and emitted by a light diffusing lens, and the emitted light from the LED lamps in the peripheral portion is directed substantially orthogonally on the outer surface , these substrates, and a plurality of LED lamps And a light-transmitting globe containing the light-controlling member, and a power feeding member introduced into the light-transmitting globe and connected to the LED lamp.
[0009]
When a plurality of LED lamps (light-emitting diode lamps) are lit, the emitted light from the plurality of rows of LED lamps in the central portion goes straight through the substantially funnel-shaped hollow portion of the light control member and passes through the upper light diffusion lens . It is diffused and emitted from above the translucent globe. Further, the emitted light from the plurality of rows of LED lamps on the outer peripheral side is incident on the substantially funnel-shaped outer surface of the light control member, is reflected in the orthogonal direction, and is emitted from the side of the globe. At this time, since a large number of LED lamps are arranged around the substantially funnel-shaped light control member, light emission concentrated in the horizontal direction from the entire circumference with a width on the side of the globe is made.
[0010]
In addition, LED lamps have a longer life and higher reliability than incandescent bulbs and have less self-heating. Also, in order to improve luminous efficiency and directivity, LED lamps have a parabolic shape for the electrode tip, a lens shape at the tip of the envelope, and a reflective surface is formed on the envelope. May be. The LED lamp can be selected from red, orange, yellow, green, and blue as desired, and a filter is not required depending on the application.
[0011]
Furthermore, the sign lamp of the present invention can be applied to signs and displays installed on the ground for displaying road width portions in motorways and the like as well as airport runways and taxiways.
[0012]
Marker light according to claim 2 of the present invention, the substrate and, a plurality of LED lamps erected on the base body, disposed opposite to these LED lamps, straight radiation from the central portion of the LED lamp a control light member formed with reflective surfaces on the outer surface having a substantially funnel-shaped to direct the light emitted from the LED lamp near portion substantially perpendicular direction with spreading to a light diffusing lens, and these substrates, a plurality of A translucent globe containing an LED lamp and a light control member, and a power feeding member introduced into the translucent globe and connected to the LED lamp are provided.
[0013]
The same effect as described in claim 1 can be obtained.
[0014]
The marker lamp according to claim 3 of the present invention is characterized in that a plurality of LED lamps are concentrically arranged on a base body in a plurality of rows at a predetermined interval.
[0015]
Since the LED lamps are regularly arranged in a plurality of rows on concentric circles, it is possible to emit light concentrated within a predetermined angle from the entire circumference of the translucent globe.
[0018]
Marker light according to claim 4 of the present invention is characterized in that the longitudinal section of the inclined outer surface of the substantially funnel-shaped portion of Seiko member forms a straight line or curved.
[0019]
The inclined longitudinal section of the outer surface of the substantially funnel-shaped portion of the light control member has a curved surface shape such as a straight line shape or a parabolic surface shape in accordance with the light incident angle from the plurality of rows of LED lamps. Light emission takes place.
[0020]
In one light control member, even if the plurality of linear portions are polygonal, different curved surfaces may be combined, or curved surfaces and flat surfaces may be mixed.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The figure shows, for example, a ground-type marker lamp (guidance lamp) A indicating the width of a taxiway at an aerodrome, FIG. 1 is a partially sectional front view , and FIG. 2 (a) is an enlarged view of a light control member in FIG. FIG. 4B is a partially sectional front view showing the wiring board .
[0022]
In the figure, reference numeral 1 denotes a substrate, here a printed wiring board, and a plurality of LED lamps (light emitting diode lamps) 2, 2,... In this state, a plurality of rows are arranged on the concentric circles at a predetermined interval. The LED lamps 2, 2,... Are connected in series or in parallel via resistors.
[0023]
3 the LED lamps 2, 2, ... at opposed to synthetic resin material or a metal plate which is arranged in a cylindrical braking light member formed in a substantially funnel shape, with a curved shape or a substantially linear shape vertical section On the outer surface 31 formed in a substantially funnel shape, a light reflecting surface (not shown) is formed as a cloth of a molding material or a coating.
The top portions of the plurality of rows of LED lamps 2, 2... At the center on the substrate 1 face the hollow portion 32 of the light control member 3. Further, the tops of the plurality of rows of LED lamps 2, 2,... On the outer peripheral side on the substrate 1 face the outer surface 31 of the light control member 3. In addition, 33 is a base | substrate part.
Further, a light diffusion lens 8 as shown in an enlarged view in FIG. 2A is provided at the opening of the light control member 3 having a substantially funnel shape .
[0024]
Reference numeral 4 denotes a cover member that also serves as a holder. The wiring board 1 and the light control member 3 are fixed to the opening, and a light-transmitting glass or synthetic resin glove 5 that covers them is waterproof. It is firmly attached. In the figure, reference numeral 6 denotes a power supply line constituting the power supply member.
[0025]
When this ground-type marker lamp (guideway lamp) A is installed and power is supplied from the power source via the feeder line 6, the plurality of LED lamps 2, 2,... LED lamps 2,2, the radiation from ..., released 7D from above the globe 5 is diffused by the lens 8 for light diffusion and passes straight through the substantially funnel-shaped hollow portion 32 of the Seiko member 3.
[0026]
The plurality of rows of LED lamps 2, 2,... On the outer peripheral side are substantially funnels that reflect or refract in a direction orthogonal to the marker lamp axis corresponding to the light emission direction of these LED lamps 2, 2 ,. Since it is directed to the outer surface 31 having a shape, it is incident on the outer surface 31, is reflected in a substantially right angle direction, and is emitted 7 R from the side of the globe 5. At this time, since a large number of LED lamps 2, 2,... Are arranged around the substantially funnel-shaped light control member 3, the light is emitted from the entire circumference with a predetermined width to the side of the glow portion 5. .
[0027]
In addition, the emitted lights 7D and 7R from the globe 5 of the marker lamp (guideway lamp) A are reduced from the upper 7D side by providing the light diffusing lens 8, and are concentrated in the substantially horizontal direction from the side 7R. As a result, a desired light distribution shown in FIG. 3 that can be easily seen by the operator can be easily obtained.
[0028]
In this case, since the blue LED lamps 2, 2,... Are not particularly necessary, the LED lamps 2, 2,. Equipment costs can be kept low.
[0031]
The present invention, by Rukoto lens 8 of light diffusion provided in an opening portion of the upper side of Seiko member 3 as described above, to control the release amount and its distribution from above the translucent globe 5 As a result, light can be emitted in a concentrated manner in a substantially horizontal direction, so that a desired light distribution can be easily obtained .
[0032]
The present invention is not limited to the above embodiment. For example, the marker lamp is not limited to the structure and application shown in the above embodiment, but may have another structure or application.
[0033]
【The invention's effect】
According to the invention of claim 1 and 2, the operator or the driver to visually recognize easily the desired light distribution is Ru easily obtained. In addition , the LED lamp has a low power consumption and a long life, and can provide a marker lamp having various advantages such as the need for replacement, power costs, and facility costs can be reduced.
[0034]
Further, according to the invention of claim 3, it is possible to emit light concentrated within a predetermined angle from the entire circumference of the globe.
[0036]
Furthermore, according to the invention of claim 4, the outer surface of the substantially funnel-shaped portion of Seiko member, and curved, such as substantially match the light incidence angle from a plurality of rows of LED lamps linear or parabolic linear Thus, highly accurate light emission can be performed.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional front view showing an embodiment of a marker lamp (guideway lamp) according to the present invention.
2A is a partial cross-sectional front view showing an embodiment of a light control member of the present invention, and FIG. 2B is a top view of a wiring board on which an LED lamp is disposed.
FIG. 3 is a partial cross-sectional front view showing a conventional marker lamp.
FIG. 4 is a graph showing a light distribution standard characteristic of a taxiway lamp.
[Explanation of symbols]
A: Marking light (guideway light)
1: Base (wiring board)
2: LED lamp (light emitting diode lamp)
3 : Light control member 4: Cover member 5: Translucent glove 6: Power supply member

Claims (4)

A substrate;
A plurality of LED lamps erected on the substrate;
Are disposed to face with these LED lamps, substantially orthogonal directions light emitted from the LED lamp of the peripheral portion at the outer surface causes the light emitted from the LED lamp of the central portion diffuses emitted by the light diffuser lens is straight hollow portion A light control member having a substantially funnel shape directed to
A translucent glove containing these substrates, a plurality of LED lamps and a light control member;
A feeding member introduced into the translucent globe and connected to the LED lamp;
A sign lamp characterized by comprising: A substrate;
A plurality of LED lamps erected on the substrate;
The LED lamp is disposed opposite to the LED lamp, and has a substantially funnel shape in which the straight radiation light from the central LED lamp is diffused by the light diffusion lens and the light emitted from the peripheral LED lamp is directed substantially orthogonally. a control light member formed with reflective surfaces on the outer surface side;
A translucent glove containing these substrates, a plurality of LED lamps and a light control member;
A feeding member introduced into the translucent globe and connected to the LED lamp;
A sign lamp characterized by comprising:   The indicator lamp according to claim 1 or 2, wherein a plurality of LED lamps are concentrically arranged on the substrate in a plurality of rows at predetermined intervals. The sign lamp according to any one of claims 1 to 3, wherein a longitudinal section of the inclined outer surface of the substantially funnel-shaped portion of the light control member is linear or curved.

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