JP2003308717A - Lighting system with led light source built therein - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that since a conventional fluorescent lamp receives a voltage to generate Joule heat, an air-conditioning unit must be installed to regulate temperature in order to cool the interior in a department store or a factory where a large quantity of fluorescent tubes are installed, and replacement work due to deterioration of the fluorescent tubes or the fluorescent tubes themselves are expensive. <P>SOLUTION: The purpose can be accomplished by developing a long-life new lighting system emitting light from one-side ends of optical fibers while transmitting the light through the optical fibers by mounting an LED light source without generating heat in an illumination tube and by using high luminance of the LEDs. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has an appearance of the same size as a commercially available fluorescent tube. However, an LED light source mounting portion is provided inside a pipe mouth stop portion to receive power from a terminal and emit light. It is intended to provide a novel lighting fixture that emits the light as a medium using an optical fiber connected to the end portion of the LED light source.

[0002]

2. Description of the Related Art As a conventional luminaire, a luminaire has been developed in which a fluorescent agent is applied to the inside of a fluorescent tube in order to increase the illuminance or which can be used for a long time with a small amount of electric power.

Furthermore, in recent years, as a device for utilizing the brightness of an LED in a lighting fixture, the utility model No. 5-54103 "Fluorescent light type LED floodlight" has "a mechanism that can be connected to a fluorescent light fixture, A floodlight which has a built-in circuit for lighting an LED by a commercial power source and which is mounted on a fluorescent lamp to light the LED to emit light is known.

Similarly, Japanese Patent Application Laid-Open No. 2001-351402 “Fluorescent lamp type LED lighting equipment” describes a “transparent or translucent pipe, a support plate provided inside the pipe, and both sides of the support plate. A terminal that fits into the socket of the fluorescent light fixture, an AC / DC converter that is connected to this terminal and that is provided on the upper surface of the support plate, and a plurality of terminals that are connected to this and that are provided on the bottom surface of the support plate Is also known as a "fluorescent-lamp-type LED lighting device," which comprises a voltage control unit that adjusts the voltage supplied to each LED.

Further, as a device for amplifying signal light with high efficiency by using an optical fiber, Japanese Patent Laid-Open No. 2000-323773 has been proposed.
No. "Fluorescent lamp-type laterally pumped optical fiber and optical fiber amplifier using the same" describes "a hollow-type fluorescent lamp in which an amplification medium-doped optical fiber is inserted in the hollow portion of a hollow-type fluorescent lamp that discharges when a voltage is applied. As described in the publication, "a fluorescent lamp-type laterally pumped optical fiber characterized in that a fluorescent substance having an emission wavelength matching the absorption wavelength of the amplification medium added to the amplification medium-added optical fiber is coated on the inner wall of" It is also known to generate light using an optical fiber.

Japanese Unexamined Patent Publication (Kokai) No. 11-353931 discloses a "ring fluorescent lamp fixture" which includes a fixture body, a ring fluorescent lamp disposed on the lower surface of the fixture body, and a light-transmitting cover for covering both of them from below. , An annular fluorescent lamp fixture which detects an infrared signal fixed to the instrument body by the infrared detector, and thereby controls the blinking of the annular fluorescent lamp, is provided with a plurality of optical fibers, each optical input of each optical fiber An annular arrangement in which ends are arranged so as to be directed in different directions, and an infrared signal projected toward the translucent cover is collected at a position of the infrared detector via each of the optical fibers. Fluorescent light fixture "is disclosed.

Further, Japanese Unexamined Patent Application Publication No. 10-255526, "Unit Room Illumination Device," describes a flexible stick-shaped optical fiber made of resin provided with vertical stripe-shaped diffuse reflection means extending in the axial direction on the outer peripheral surface. An optical fiber cable for optical transmission, one end of which is connected to one end of a stick-shaped optical fiber, a power supply device connected to the other end of the optical fiber cable, and a power supply box having a light source and a condensing unit, Unit room lighting device ".

[0008]

Although a luminaire using an LED having a high luminance as described above is known, the biggest drawback of this illumination is that the luminance of the LED advances only in a single direction. Since it has a characteristic that it does not diffuse to the surroundings, it is necessary to provide some kind of radiation means to the device itself, which inevitably results in high costs and has not led to the development of practical products.

A lighting fixture using the above LED is
Since a plurality of LEDs are arranged side by side on a support plate to irradiate in one direction, the labor of mounting the LED light source has been a factor of increasing the total cost.

When an optical fiber is used, it is used exclusively for transmitting light and never diffuses the light from the fiber itself.

[0011]

In order to solve such a problem, the present inventor has conducted earnest research and as a result, the high brightness of the LED light source is used to transmit the light to an optical fiber, and the brightness is diffused to the outside of the fluorescent tube. Find out what you can do,
The LED light source fluorescent lamp of the present invention can be developed.

That is, a first aspect of the present invention is a lighting device comprising a transparent or semi-transparent pipe tube and a detachable terminal at a socket portion at the mouth portion of the pipe pipe, and an LED light source interlocking with the terminal. The LED light source built-in illuminating device is characterized in that the mounting portion is provided inside the mouth stop portion, and the LED light source of the mounting portion illuminates the LED light beam in parallel with the inner tube.

A second aspect of the present invention is a luminaire comprising a transparent or semi-transparent pipe tube and a detachable terminal at a socket portion at the mouth end portion of the pipe pipe, wherein an LED light source interlocking with the terminal is mounted. In the lighting device with a built-in LED light source, the part is provided inside the mouth stop part, and an optical fiber is attached to an end part of the LED light source of the mounting part.

A third aspect of the present invention is the illumination device with a built-in LED light source according to claim 2, wherein the optical fiber has a radial end or a notch is provided in the fiber body.

[0015]

FIG. 1 is a front view showing a state in which a plurality of LED light sources 1 of the present invention are attached. This LED
The light source is a light source in which an LED chip is covered with a cylindrical resin as shown in FIG. 2, and has a structure to be mounted inside a mouth stop portion (not shown) of a commercially available lighting fixture.

In the present invention, the optical fiber 3 is attached to the tip of the LED light source 1 by converging it to have a diameter substantially equal to that of the light source stand and a certain distance, and the tip of the fiber is attached to the main body as shown in FIG. 3b. It has a structure that branches and spreads radially and transmits the illumination of the LED.

As another embodiment, as shown in FIG. 4, the outer surface of the optical fiber body is cut, and the direction of the light beam from the LED light source 1 is changed as shown in FIG. It is also possible to dissipate.

The present invention is described in detail below with reference to examples, but the scope of the present invention is not limited to these.

[0019]

[Embodiment 1] A plurality of white LED light sources 1 as shown in FIG. 2 are attached to a light source base 2 inside the stopper portion at the end of the outer tube of the same size as a commercially available rabbit type lighting fixture. They are fitted to the left and right stoppers (not shown), and further, one end of the optical fiber 3 having a diameter of 3 mm is welded and fixed to a fixed portion (not shown) having the same diameter provided at the tip of the LED light source 1, and the like. The end was held in the fluorescent tube 4 via a circular fixture (not shown).

In this case, the other end of the optical fiber 3 spreads radially from the main body of the optical fiber 3, and the white LED light emission diffused to the outside from the tip.

In this case, the illuminance of light was measured to be 40
It was possible to confirm the same diffusivity and illuminance as those of the W fluorescent tube, and it was sufficiently usable as a lighting fixture.

[0022]

[Embodiment 2] Similar to Embodiment 1, a plurality of white LED light sources 1 are attached to a light source base 2, and the light source bases are fitted into left and right mouth stoppers (not shown), and an optical fiber having a diameter of 3 mm is used. One end of the LED light source 1 is welded and fixed to a fixed portion (not shown) of the same length provided at the tip of the LED light source 1, and the other end is held in the illumination tube 4 via a circular fixture (not shown). did.

Light rays emitted from the LED light source pass through the inside of the main body of the optical fiber 3 as shown in FIG. 5, and the course of the light is changed on the cut surface, and a part of the light is radiated to the outside of the luminaire. .

In this case, the illuminance of light was measured to be 55
It was possible to confirm the same diffusivity and illuminance as those of the W lighting fixture, and it was sufficiently possible as a commercial product.

[0025]

The illumination device with a built-in LED light source of the present invention is
Since a plurality of ED light sources are attached and transmitted to an inexpensive optical fiber by utilizing the high brightness, the total cost can be easily manufactured.

Since the LED itself has a long life, it is expected that the lighting device with a built-in LED light source of the present invention itself will be used for a considerable period of time.

Moreover, since Joule heat is not generated unlike the conventional lighting equipment, the frequency of use of air conditioners and fans in the room can be reduced, and it can be used as an energy-saving product.

[Brief description of drawings]

FIG. 1 is a front view showing a mounting state of an LED light source of the present invention.

FIG. 2 is a cross-sectional view showing the cross section of FIG.

3a, 3b and 3c are partially enlarged views showing the use of the optical fiber in the first embodiment.

FIG. 4 is a partially enlarged view showing an optical fiber according to a second embodiment.

FIG. 5 is an explanatory diagram showing a path of a light ray passing through the cut portion of FIG.

[Explanation of symbols]

1 ... LED light source 2 ... Light source stand 3 ... Optical fiber 4 ... Lighting tube

Claims (3)

[Claims] 1. A lighting device comprising a transparent or translucent pipe tube and a detachable terminal in a socket portion of the pipe pipe mouth stop portion, wherein an LED light source mounting portion interlocking with the terminal is provided inside the mouth stopper portion. An LED light source built-in illuminating device, wherein LED light source is provided in the mounting part and LED light rays are illuminated in parallel with the inner tube. 2. A lighting device comprising a transparent or semi-transparent pipe tube and a detachable terminal in a socket portion of the pipe pipe mouth stop portion, wherein an LED light source mounting portion interlocking with the terminal is provided inside the mouth stopper portion. A lighting device with a built-in LED light source, wherein an optical fiber is attached to an end portion of the LED light source of the mounting portion. 3. The illumination device with a built-in LED light source according to claim 2, wherein the optical fiber has a radial tip or a notch is provided in the fiber body.