JP2000294002A - Light emitting body and signal lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light emitting body and signal lamp for use as a traffic signaling apparatus assuring a long lifetime and high efficiency and free of a risk of misacknowledgement caused by pseudo-lighting. SOLUTION: A first base board 5, insulating rubber 6, and aluminum plate 25 are installed in the upper part of the disc-shaped column 3 of a light emitting body 1. The first board is furnished with a plurality of diodes 15 oriented in the axial direction of the column 3, while a second base board 7 is furnished with a plurality of light emitting diodes 17 directed to the side face. In the lower part thereof a third, a fourth, and a fifth board 9, 11, 13 are installed reducing the diameters gradually, and each of them is fitted with a plurality of light emitting diodes 19, 21, 23 in such a way as directed down gradually. The heat generated when the light emitting body 1 is lighted is radiated through the plate 25 to the side of the column 3, etc., and lifetime of the light emitting diodes can be prolonged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitter and a signal light used for a traffic signal.

[0002]

2. Description of the Related Art Conventionally, there is a traffic light used for a traffic signal as shown in FIG. As shown in FIG. 7, a reflecting mirror is provided inside a dome-shaped casing 103, an incandescent lamp 107 is provided inside the casing 103, and a color lens 105 such as red, yellow, and blue is provided on a front surface of the casing 103. Provided.

[0003]

However, the life of the incandescent lamp 107 is usually as short as about one year, and the luminous efficiency is low with respect to the power consumption.

A signal light 10 using an incandescent lamp 107
In the case of No. 1, since the light source is a single filament, there is a problem that if the ball is broken, it cannot be turned on at all. Since the traffic signal light must be one that does not cause the ball to be out of use, frequent maintenance is required when the incandescent lamp 107 is used.

[0005] In a time zone where the sun is low, such as early morning or evening, as shown in FIG. 7, sunlight 113 incident on the signal lamp 101 is reflected by a reflector inside the casing 103, and becomes blue, yellow. , Through the red color lens 105. Therefore, even if the incandescent lamp 107 is turned off,
The reflected light 115 causes a pseudo-lighting phenomenon as if the light were turned on, and there is a possibility that a viewer may make an incorrect recognition. In FIG. 7, reference numeral 111 denotes the sun.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and an object of the present invention is to provide a light emitting element and a signal light for a traffic signal which have a long life, are highly efficient, and have no false recognition due to pseudo lighting. To provide.

[0007]

In order to achieve the above-mentioned object, a first aspect of the present invention is a luminous body used for a signal lamp, comprising a support, a base provided on the support, and a light-emitting element provided on the base. A luminous body provided with a diode and a radiator plate for radiating heat generated in the base to the support pillar side.

According to a second aspect of the present invention, there is provided a signal lamp in which a luminous body for emitting colored light is installed in a casing, and a transparent lens is provided on a front surface of the casing.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a luminous body 1 according to one embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the luminous body 1. As shown in FIGS. 1 and 2, a disk-shaped aluminum plate 25, an insulating rubber 6, and a first base 5 are provided on the column-shaped support 3.

The aluminum plate 25 functions as a heat sink. The support 3 is made of aluminum or the like. Note that a material other than aluminum may be used for the heat sink.

The first base 5 is provided with a plurality of first light emitting diodes 15 extending in the axial direction of the column 3.

The column 3 has a disc-like shape at the center thereof.
Second base 7, Third base 9, Fourth base 11, Fifth base 1
3. A receiving portion 28 is sequentially provided.

The second substrate 7 is provided with a plurality of second light emitting diodes 17 facing the side. The third base 9 has a third base
A light emitting diode 19 is provided, and
A light emitting diode 21 is provided, and
The light emitting diode 23 is provided, and the receiving portion 28 is provided with an electric circuit board 29. A plug 31 is provided at the lower end of the body 3.
Is formed.

The diameters of the disc-shaped second base 7, the third base 9, the fourth base 11, and the fifth base 13 are sequentially reduced, and the diameters of the third light emitting diode 19, the fourth light emitting diode 21, and the fifth light emitting diode 23 are reduced. The direction gradually turns downward in FIG.

The electric circuit board 29 converts the AC power supplied from the plug 31 to DC and adjusts it to the operating voltage of the light emitting diode, and the first board 5, the second board 7, the third board 9, and the The voltage is applied to the fourth substrate 11 and the fifth substrate 13. The plug 31 has a shape compatible with the conventional incandescent light bulb of the signal light.

FIG. 3 shows a signal light 5 constituted by using the luminous body 1.
FIG. 4 is a sectional view of the signal light 51.
A reflection plate 45 is provided inside the casing 43, and the luminous body 1 is mounted in the center of the casing 43.
3 is provided with a transparent lens 41 in the front opening. In addition, a color lens can be used instead of the transparent lens.

As a material of the transparent lens 41, a material having a high light transmittance is preferable, and a material which is stable against ultraviolet rays, temperature changes, and the like is preferable so as to withstand long-term outdoor use.

The plug 31 at the lower part of the luminous body 1 passes through an opening 44 in the center of the casing 43, and is used by being mounted on an AC power supply socket (not shown).

As shown in FIG. 4, the emitted light of the first light emitting diode 15 is directly applied to the front of the signal light 51.

The emitted light from the second light emitting diode 17 and the like is reflected by the reflection plate 45 and is emitted in front of the signal light 51 in parallel with the light flux of the first light emitting diode 15. The diameter of the second base 7, the third base 9, the fourth base 11, and the fifth base 13,
The second light emitting diode 17 and the third
The mounting angles of the light emitting diode 19, the fourth light emitting diode 21, and the fifth light emitting diode 23 are gradually changed so that the light emitted from each of the light emitting diodes 17, 19, 21, and 23 is directed toward the front of the signal light 51. Therefore, the entire surface of the reflection plate 45 can be effectively used, and as a result, the unevenness of the luminance on the front surface of the signal lamp 51 can be reduced.

FIG. 5 is a connection diagram of a light emitting diode.
As shown in FIG. 5, light emitting diodes 15, 17, 19, 21, and 23 are provided on the first substrate 5, the second substrate 7, the third substrate 9, the fourth substrate 11, and the fifth substrate 13. For this reason, even when a part of the light emitting diode is damaged, the other light emitting diodes can continue to be lit, so that the luminous body 1 is not completely turned off.

The light emitting diodes 15, 17, 19, 21,
The luminescent color of 23 is unified to any one of blue, yellow, and red for one luminous body 1, and when the power is supplied to the plug 31, the luminous body emits light of that color. This light travels forward of the signal light as shown by the arrow in FIG. 4, passes through the transparent lens 41 and is radiated to the outside to operate as a signal light.

The light emitting diodes 15, 17, 19, 21,
23, the power consumption of the light emitting element 1 is about 1/5 of that of the conventional incandescent lamp (60W, 70W) for the signal light device when about 200 light emitting diodes are mounted and lighted in this embodiment. Met.

The life of an incandescent lamp is about one year, whereas the life of a light emitting diode is as long as 10 years or more.

In this embodiment, the first light emitting diode 1
5 has a higher mounting density than other light emitting diodes provided on the second board 7, the third board 9, the fourth board 11, and the fifth board 13, and is a main heat source when the light emitting body 1 is operated. The calorific value is also large. However, the generated heat is radiated to the outside by the aluminum plate 25 serving as a heat radiating plate, and the life of the light emitting diode can be extended.

FIG. 6 shows the signal light 51 when receiving sunlight from a low position such as early morning or evening. The sunlight 63 that has entered the signal light 51 passes through the transparent lens 41, is reflected by the reflection plate 45 inside the casing 43, passes through the transparent lens 41 again, and is emitted to the outside.

In the present embodiment, the luminous body 1 itself is blue,
Since the light is emitted in yellow, red, and the like, and the reflected light 65 remains white light, the signal light 51 is emitted even though the light emitter 1 is turned off.
There is no possibility of causing the viewer to recognize a misrecognition as if is lit. In FIG. 6, reference numeral 61 denotes the sun.
In addition, the luminous body 1 according to the present invention can be used for a lamp currently used.

[0028]

As described above in detail, according to the present invention, it is possible to provide a luminous body for a traffic light and a signal light which has a long service life, is highly efficient, and has no false recognition due to pseudo lighting.

[Brief description of the drawings]

FIG. 1 is a perspective view of a luminous body 1.

FIG. 2 is a longitudinal sectional view of the luminous body 1.

FIG. 3 is a configuration diagram of a signal light using the light emitting body 1.

FIG. 4 is a sectional view of the signal light 5;

FIG. 5 is a wiring diagram of a light emitting diode.

FIG. 6 is a diagram of sunlight incident on a signal light 51.

FIG. 7 is a diagram of sunlight incident on a conventional signal light.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Light-emitting body 3 ... Post 5 ... 1st base 7 2nd base 9 3rd base 11 4th base 13 13th Base 15 First light emitting diode 17 Second light emitting diode 19 Third light emitting diode 21 Fourth light emitting diode 23 Fifth light emitting diode 25 Aluminum plate 28 … Receiving part 29 …… Electrical circuit board 31… Plug 41… Transparent lens 43… Case 44… Opening part 45… Reflector 51 …… Signal light 61 …… Sun 63… …… Sunlight 65 ……… Reflected light

Claims (7)

[Claims] 1. A luminous body used for a signal light, comprising: a support; a base provided on the support; a light-emitting diode provided on the base; and a radiator plate for radiating heat generated on the base to the support. And a luminous body provided with: 2. The heat radiation plate is provided at an end of the main body,
The luminous body according to claim 1, wherein a base is provided on the heat sink, and a light emitting diode is provided on the base. 3. The light-emitting body according to claim 2, wherein a plurality of bases are further provided on the support, and a light-emitting diode is provided on the bases. 4. The luminous body according to claim 1, wherein said radiator plate is made of aluminum. 5. The luminous body according to claim 1, wherein said pillar is made of aluminum. 6. A signal lamp, wherein a luminous body that emits colored light is installed in a casing, and a transparent lens is provided on a front surface of the casing. 7. The signal light according to claim 6, wherein the light emitter according to claim 1 is used as said light emitter.