JPH071692Y2 - Obstacle light - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an obstacle light such as an aviation obstacle light installed in a high-rise building such as a high-rise apartment.

[Prior Art] Conventionally, an aviation obstacle light is installed in a high-rise building such as a high-rise condominium so that the high-rise building can be visually recognized from an aircraft.

And as a conventional aviation obstruction light, a built-in incandescent light bulb type,
Possible types include a built-in fluorescent lamp, a built-in neon lamp, and a built-in LED.

[Problems to be Solved by the Invention] However, the aviation obstruction light with a built-in incandescent bulb has a short life, and the incandescent bulb must be replaced frequently. In addition, when installing in the vicinity of the living room, such as in a high-rise house, a maintenance company must go into the privacy space every time the incandescent light bulb is replaced, and perform the replacement work. I had a problem with.

It is difficult to control the light distribution because the built-in fluorescent lamp is not a point light source,
There is a problem in that it is difficult to obtain desired characteristics, and it is also difficult to achieve a small size and high output.

Further, since the aviation obstruction light with a built-in neon lamp uses a high voltage, if it is installed near a room such as a high-rise house, there is a danger of electric shock, which is a safety problem.

Furthermore, the aviation obstruction light with a built-in LED has a problem that the amount of emitted light is small, the required luminous intensity cannot be obtained, and even if a large number of them are integrated, they are difficult to be put to practical use in terms of economical efficiency and light conversion efficiency. .

The present invention was devised in view of the problems of the above-mentioned conventional example, and its purpose is to provide an obstacle lamp that has a long life, requires few replacements, and is highly efficient and reduces power cost. To provide.

[Means for Solving the Problems] However, the present invention uses an electrodeless discharge lamp that emits light in an electromagnetic field from the outside by an induction coil connected to an electromagnetic field generation unit as a light source, and surrounds the outer periphery of the electrodeless discharge lamp. An obstacle lamp using a covering Fresnel lens type globe as a light distribution control means, wherein an electrodeless discharge lamp having an incandescent bulb type appearance is arranged near the focal point of the Fresnel lens system, and there is no electrode. The induction coil surrounding the outer circumference of the discharge lamp is characterized in that it is displaced downward from the optical axis of the Fresnel lens system and is arranged at a position outside the effective light distribution area of the Fresnel lens system.

[Operation] Then, a high-frequency electromagnetic field is generated by the electromagnetic field generation unit 3 and the high-frequency electromagnetic field is applied to the electrodeless discharge lamp 2 to cause the electrodeless discharge lamp 2 to emit light. Light is emitted by the Fresnel lens type globe 1 as a light source, and the use of the electrodeless discharge lamp 2 makes it possible to prolong the life and improve the efficiency of the equipment.

[Embodiment] The present invention will be described in detail below based on an embodiment shown in the accompanying drawings.

An electromagnetic field generating unit 3 is internally mounted inside the lamp body 4, and an electrodeless discharge lamp 2 having an incandescent bulb-shaped appearance is provided in front of the electromagnetic field generating unit 3. An induction coil 15 connected to the electromagnetic field generation unit 3 is wound around the outer periphery of the electrodeless discharge lamp 2 which is offset from the center. A mounting projection 5 is further provided on the front of the electromagnetic field generating unit 3, and a filter unit 6 is mounted on the mounting projection 5 with a screw 7. The filter unit 6 is composed of a substantially bell-shaped color filter 8 having an open bottom and a guard member 9 surrounding the outer periphery of the color filter 8. A fresnel lens type globe 1 having a substantially bell shape is attached to the lamp body 4,
Specifically, one end of a frame body 10 provided on the opening side of the globe 1 of the Fresnel lens system is rotatably supported by a pivoting means 11, and a protrusion provided on the other end of the frame body 10. The piece 12 and the locking portion 13 provided on the lamp body 4 are detachably connected by a connecting tool 14, and the locking by the connecting tool 14 is released to pivot means.
The electrodeless discharge lamp 2 is replaced by rotating the Fresnel lens type globe 1 around 11.
Here, when the Fresnel lens type globe 1 is closed,
The electrodeless discharge lamp 2 is arranged near the focus of the globe 1 of the Fresnel lens system. Since the induction coil 15 is located at a position displaced from the optical axis of the Fresnel lens system, the induction coil 15 is provided on the outer circumference of the electrodeless discharge lamp 2.
Even though 15 is located, it does not interfere with the light distribution. In the figure, 16 is a sealing material. The obstacle light A having the above-described configuration is installed in a building such as a high-rise house.

Then, a high-frequency electromagnetic field is generated by the electromagnetic field generation unit 3 to give a high-frequency electromagnetic field to the electrodeless discharge lamp 2 to excite low-pressure gas atoms and inductively discharge them, thereby radiating ultraviolet rays and visible rays. With respect to ultraviolet rays, the phosphor layer is irradiated to be converted into visible rays. In this way, by causing the electrodeless discharge lamp 2 to emit light near the end point of the Fresnel lens system globe 1, light is emitted from the Fresnel lens system globe 1 and the light causes the aircraft to visually recognize that there is an obstacle.

At this time, the induction coil 15 is located at a position shifted downward from the optical axis of the Fresnel lens system, and is placed on the effective light distribution side of the Fresnel lens system whose main light distribution direction is diagonally upward from the horizontal direction. Therefore, the presence of the induction coil 15 does not affect the light distribution at all.

In the above embodiment, an example of an aviation obstruction light installed in a high-rise building such as a high-rise house as the obstruction light A is shown, but the present invention is not necessarily limited to the above-mentioned embodiment, and other structures, For example, it can be used as an obstacle light for bridges or as an obstacle light installed on a buoy for ships. In particular, it can be effectively installed in a place where maintenance is difficult.

The electrodeless discharge lamp 2 is similar in efficiency to the conventional fluorescent lamp, more than twice as long as the incandescent lamp, and has a life several times longer than that of the conventional fluorescent lamp.

[Advantage of the Invention] As described above, in the present invention, since the electrodeless discharge lamp that emits light by the electromagnetic field from the outside and has a long life is used as the light source placed near the focus of the globe of the Fresnel lens system, The frequency of maintenance can be reduced and the efficiency of the equipment can be improved, and the type of electrodeless discharge lamp that has the appearance of an incandescent bulb and has an induction coil arranged on the outer periphery is used. Therefore, although it can be handled as a point light source advantageous for light distribution, and even though the induction coil is on the outer peripheral side of the electrodeless discharge lamp, it is displaced downward from the optical axis of the Fresnel lens system and the Fresnel lens system. Since the lens is located outside the effective light distribution area, the induction coil moves slightly upward from the horizontal direction, which is required as an obstacle light. The specified light amount and the light distribution can be easily secured without any hindrance to the light distribution.

[Brief description of drawings]

FIG. 1 is a sectional view of the present invention, in which 1 is a Fresnel lens type globe, 2 is an electrodeless discharge lamp, and 3 is an electromagnetic field generating unit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiji Tokoji Kadoma City, Osaka Prefecture 1048 Kadoma Matsushita Electric Works Co., Ltd. (72) Kobayashi Koichi Osaka Kadoma City Kadoma City 1048, Matsushita Electric Works Co. ) Inventor Jun Matsuura 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd. (56) Reference Japanese Unexamined Patent Publication No. Hei 2-7352 (JP, A) Actual Development Sho 62-33163 (JP, U) Actual Public Sho 52- 38939 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A light distribution control of a Fresnel lens type globe covering an outer periphery of an electrodeless discharge lamp, the electrodeless discharge lamp emitting light by an electromagnetic field from the outside by an induction coil connected to an electromagnetic field generation unit. As an obstacle lamp as means, an electrodeless discharge lamp having an incandescent bulb type appearance is arranged near the focal point of the Fresnel lens system, and the induction coil surrounding the outer periphery of the electrodeless discharge lamp is An obstacle lamp characterized by being displaced downward from the optical axis of the Fresnel lens system and being arranged at a position outside the effective light distribution area by the Fresnel lens system.