JP2002329404A - Led illumination fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a uniform surface light-emission, create a desired luminous color and realize free light expression in an LED illumination fixture. SOLUTION: In the LED illumination fixture, a conical fluorescent luminous body 4 is housed in a housing part 3 of a columnar illumination fixture body 2 made of a transparent acrylic resin, the fluorescent luminous body 4 is placed on a pedestal 5, the top of the housing part 3 is covered with a cap 2a, and four ultraviolet LEDs 6 are mounted on the rear face of the cap 2a. The fluorescent luminous body 4 is formed by coating the entire surface of a paper-made conical substrate 8 with a fluorescent body 7. When the fluorescent luminous body 4 housed in the housing part 3 is irradiated with an ultraviolet ray by the four ultraviolet LEDs 6, the fluorescent body 7 coated on the surface of the fluorescent luminous body 4 emits light in a prescribed fluorescent color, and a fluorescent light is emitted around the whole circumferential 360 deg. of the housing part 3 in uniform surface light-emission. The luminous color of the LED illumination fixture 1 can be made to be a preferred color by appropriately selecting a fluorescent material contained in the fluorescent body 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultraviolet light emitting diode (hereinafter referred to as an "ultraviolet LED") which is coated with a fluorescent material containing a fluorescent material which emits light when irradiated with ultraviolet light.
Also abbreviated. The present invention relates to an LED lighting device capable of performing various illuminations and light expressions in place of a conventional light by irradiating the ultraviolet light of (1). The light beam angle can be changed from a spot to a sphere.

In this specification, the LED chip itself is called a “light emitting element”, and the entire light emitting device including an optical device such as a package resin or a lens system on which the LED chip is mounted is referred to as a “light emitting diode” or “LED”. ".

[0003]

2. Description of the Related Art In recent years, various lighting devices using light emitting diodes have been developed with the increase in luminance and multicolor of light emitting elements. In particular, an LED lamp that emits white light by incorporating a light-emitting element that emits three primary colors of red, green, and blue light in a single package is being developed as a long-life light source that replaces conventional incandescent bulbs or fluorescent lamps. In.

[0004]

However, such an LED
Since the lighting device using the light source emits point light, it cannot uniformly illuminate a wide area as in a desk lamp using a conventional fluorescent lamp. On the other hand, conventional incandescent lamps and fluorescent lamps
Only colors could be produced, and it was not possible to produce light of various colors in spot lighting, foot lighting, approach lighting, garden lights, and the like. On the other hand, there are fluorescent materials that emit light of various colors by irradiating ultraviolet rays, and the characteristics of ultraviolet LEDs that irradiate ultraviolet rays have been improved.

[0005] Therefore, the present invention provides an LED illuminator that can obtain a desired luminescent color and can freely express light while using an ultraviolet LED and a fluorescent material to obtain uniform surface light emission. Is the subject.

[0006]

According to a first aspect of the present invention, there is provided an LED illuminator having a surface coated with a phosphor containing at least one of an inorganic or organic material which emits light upon irradiation with ultraviolet light. And a housing part for housing the fluorescent luminous body, and a part or all of the housing part is a window part that radiates the fluorescence emitted by the fluorescent luminous body to the outside, and It comprises one or more ultraviolet LEDs having an ultraviolet light emitting element, which is mounted at a position facing the surface of the fluorescent light emitting body, and a power supply for supplying power to the ultraviolet LEDs.

In the LED lighting device having such a configuration, when power is supplied from a power source to one or more ultraviolet LEDs attached to a position of the lighting device body opposite to the surface of the fluorescent light emitting member, the fluorescent light emitting member is turned on. The fluorescent material applied to the surface of the substrate is irradiated with ultraviolet rays, and the fluorescent material emits light in a unique fluorescent color, so that the entire surface of the fluorescent luminescent material emits light uniformly. Then, the fluorescent light is radiated to the outside from the window of the storage unit that stores the fluorescent luminous body. By selecting a phosphor to be applied to the fluorescent luminous body, it is possible to emit light of various colors including white, and various light expressions are possible according to the application of the LED lighting device.

As described above, by using the ultraviolet LED and the fluorescent material, uniform surface light emission can be obtained, a desired light emission color can be obtained, and an LED lighting device capable of freely expressing light can be obtained.

The LED lighting device according to the second aspect of the present invention,
One of inorganic or organic materials that emits light when irradiated with ultraviolet light
A fluorescent or luminous body made of a transparent or translucent material coated on the back surface with a fluorescent material containing a fluorescent material composed of the above, and a housing part for housing the fluorescent light emitting body, wherein a part or all of the housing part is fluorescent. An illuminator body which is a window for radiating fluorescent light emitted from the illuminant to the outside; and one or more ultraviolet LEDs having an ultraviolet light emitting element attached to a position of the illuminator body opposite to a back surface of the fluorescent illuminant. And a power supply for supplying power to the ultraviolet LED.

[0010] In the LED lighting device having such a configuration, when power is supplied from a power source to one or more ultraviolet LEDs attached to a position opposite to the back surface of the fluorescent light emitting body of the lighting device body, the fluorescent light emitting device is turned on. The fluorescent material applied to the back surface of the substrate is irradiated with ultraviolet light, and the fluorescent material emits a unique fluorescent color. Here, since the fluorescent material is made of a transparent or translucent material, the light emitted from the fluorescent material passes through the fluorescent material and the entire surface of the fluorescent material emits light uniformly. Then, the fluorescent light is radiated to the outside from the window of the storage unit that stores the fluorescent luminous body. By selecting a phosphor to be applied to the phosphor, it is possible to emit light of various colors including white.
Various light expressions are possible depending on the use of the ED lighting device.

As described above, by using the ultraviolet LED and the fluorescent material, uniform surface light emission can be obtained, and a desired luminescent color can be obtained, thereby providing an LED lighting device capable of freely expressing light.

[0012] The LED lighting device according to the invention of claim 3 is:
In the configuration of claim 1 or claim 2, the fluorescent luminous body has a conical shape.

Therefore, by attaching the ultraviolet LED to the apex of the cone of the fluorescent light emitter, the fluorescent light is emitted from the entire surface of the conical surface or the back surface, and is uniform over 360 degrees around the cone. Surface light emission is obtained.

[0014] In this way, an LED illuminator capable of obtaining more uniform surface emission even from the ultraviolet LED as a point light source is provided.

According to a fourth aspect of the present invention, there is provided an LED lighting device comprising:
In any one of claims 1 to 3,
The housing is detachable from the lighting fixture body.

Therefore, the housing is detached from the lighting fixture body, the fluorescent light-emitting body housed in the housing is replaced with a fluorescent light-emitting body coated with a phosphor emitting another fluorescent color, and the housing is again illuminated. By attaching the LED lighting fixture to the fixture main body, the emission color of the LED lighting fixture can be freely changed. Thereby, free light expression can be performed with a desired color.

In this manner, uniform surface light emission can be obtained, and the emission color can be changed one after another, thereby providing an LED lighting device capable of more freely expressing light.

The LED lighting device according to the invention of claim 5 is
In any one of claims 1 to 3,
A storage unit for storing the plurality of fluorescent light emitters is provided in the lighting fixture body, and any one of the plurality of fluorescent light emitters is replaced from the storage unit with the fluorescent light emitter stored in the storage unit. Is what you can do.

Therefore, by replacing the fluorescent luminous body accommodated in the accommodating section with any one of the plurality of fluorescent luminous bodies stored in the accommodating section, L can be freely changed.
The emission color of the ED lighting device can be changed. Thereby, free light expression can be performed with a desired color. Also, since the plurality of fluorescent luminous bodies are stored in the storage unit,
There is no need to search for and bring in a fluorescent luminous body of a desired luminescent color from outside the LED lighting device, and the replacement can be performed immediately.

In this way, uniform surface light emission can be obtained, and the emission color can be changed one after another, thus providing an LED lighting device capable of more freely expressing light.

An LED lighting device according to the invention of claim 6 is
In the configuration of claim 2, the fluorescent light-emitting body is formed by applying the fluorescent substance to a back surface of a flat transparent film, and the lighting fixture body is a rectangular parallelepiped having no end faces, and the lighting fixture body is the rectangular parallelepiped. The fluorescent light-emitting body is also housed along a diagonal line in the rectangular parallelepiped, and only two adjacent surfaces of the rectangular parallelepiped corresponding to the front surface side of the fluorescent light-emitting body are transparent. Things.

In the LED lighting device having such a configuration, ultraviolet light is emitted from the phosphor by attaching ultraviolet LEDs to the remaining two corners of the non-transparent surface and irradiating the back surface of the flat fluorescent light emitter with ultraviolet light. The fluorescent light passes through the flat transparent film, and the entire surface of the fluorescent luminous body emits light uniformly. The light emitted from the surface of the fluorescent material is emitted from two transparent adjacent surfaces corresponding to the surface of the fluorescent material, and uniform surface light is obtained along the longitudinal direction of the rectangular parallelepiped. For this reason, the lighting device is optimal for a desk lighting device, an illuminated nameplate, an approach lighting device, and the like.

In this manner, uniform surface light emission can be obtained along the longitudinal direction of the rectangular parallelepiped, so that an LED lighting device optimal for a desk lighting device, an illuminated nameplate, an approach lighting device, and the like can be obtained.

An LED lighting device according to the invention of claim 7 is:
In any one of claims 2 to 6,
The fluorescent luminous body is composed of a transparent film and
It is formed by printing one or more of symbols, figures, and patterns.

In the LED lighting device having such a configuration, since the base material of the fluorescent luminous body is a transparent film, characters, symbols, figures, and patterns can be easily printed with the fluorescent substance by screen printing. By irradiating such a fluorescent substance with ultraviolet light from an ultraviolet LED,
One or more of the printed characters / symbols / graphics / patterns emit fluorescent light and emerge. Therefore, the illumination becomes more excellent in design, and the message to the visitor can be transmitted by printing characters.

[0026] In this way, the LED illuminator is designed to provide more excellent illumination in design and also to transmit a message to a visitor by printing characters.

An LED lighting device according to the invention of claim 8 is:
In any one of claims 1 to 7,
The fluorescent material includes a red fluorescent material that emits red light when irradiated with ultraviolet light, a green fluorescent material that emits green light when irradiated with ultraviolet light, and a blue fluorescent material that emits blue light when irradiated with ultraviolet light.

Therefore, by mixing three types of fluorescent materials emitting the three primary colors of light in a predetermined ratio to form a fluorescent material, the fluorescent light-emitting material coated with the fluorescent material can be irradiated with ultraviolet light from the ultraviolet LED. For example, white or near daylight light emission can be obtained, which is extremely suitable for desk lighting, personal computer lighting, indoor lighting, and the like.

In this manner, white or near daylight light emission can be obtained with uniform surface light emission, and an LED lighting device extremely suitable as a desk lighting device, a personal computer lighting device, an indoor lighting device, or the like can be obtained.

The LED lighting device according to the ninth aspect of the present invention
In any one of claims 1 to 8,
The ultraviolet light emitting element has a peak light emission wavelength of 360n.
m is in the range of 400 nm.

Therefore, the center emission wavelength of the ultraviolet light emitting element is 380 nm, and even if it is an ultraviolet light emitting element, the emitted light is near ultraviolet light having a long wavelength, and there is almost no harm to the human body, especially eyes and skin. In addition, the peak wavelength of each excitation spectrum of the fluorescent material that emits the three primary colors of light, red, green, and blue, is 360 to 400 nm.
Since it is within the range of nm, fluorescent light can be emitted very efficiently, and when a fluorescent material emitting three colors of red, green, and blue is used, a very bright LED lighting device can be obtained.

As described above, even if the ultraviolet light emitting element is turned on for a long time as illumination, there is no effect on health, and an LED illuminator capable of obtaining very bright light emission can be obtained.

[0033]

Embodiments of the present invention will be described below with reference to the drawings.

First Embodiment First, a first embodiment of the present invention will be described with reference to FIG. FIG. 1A is a perspective view showing an overall configuration of an LED lighting device according to a first embodiment of the present invention, FIG. 1B is a perspective view showing a mounting position of an ultraviolet LED, and FIG. FIG.

As shown in FIG. 1A, in the LED lighting device 1 according to the first embodiment, a conical fluorescent luminous body 4 is housed in a housing portion 3 of a cylindrical lighting body 2 and a fluorescent light is emitted. Luminous body 4
Is mounted on a pedestal 5 of the lighting fixture body 2. The housing portion 3 is made of a transparent acrylic resin having a cylindrical shape, and a lid 2a is covered on the housing portion 3. As shown in FIG. 1B, four ultraviolet LEDs are provided on the back surface of the lid 2a.
When a lighting switch (not shown) provided on the lighting fixture main body 2 is turned on, electric power is supplied from a power supply (not shown) to irradiate ultraviolet rays. Further, as shown in FIG. 1 (c), the fluorescent luminous body 4 is obtained by applying a fluorescent substance 7 containing a fluorescent material which emits light by irradiation of ultraviolet rays onto the entire surface of a conical paper base material 8. It is.

Therefore, as shown in FIG. 1A, four ultraviolet LEDs attached to the back surface of the lid 2a
When the fluorescent light-emitting body 4 housed in the housing part 3 below from 6 is irradiated with ultraviolet light, the fluorescent body 7 applied to the surface of the fluorescent light-emitting body 4 emits light of a predetermined fluorescent color. All around 36
Fluorescence is emitted with uniform surface emission over 0 degrees. LED
The emission color of the lighting fixture 1 can be set to a desired color by appropriately selecting a fluorescent material contained in the phosphor 7. For example, when the fluorescent material is a mixture of three types of fluorescent materials that emit the three primary colors of red, green, and blue, respectively, white light is emitted as in a conventional fluorescent lamp. In addition, by selecting a fluorescent material, the LED lighting device 1 that emits various colors including red, green, and blue can be obtained.

In the LED lighting device 1 according to the first embodiment, a GaN-based compound semiconductor containing indium and having a peak emission wavelength in a range of 360 nm to 400 nm as an ultraviolet light emitting element of the ultraviolet LED 6 is used. ing. Accordingly, the center emission wavelength of the ultraviolet light emitting element is 380 nm, and even if it is called an ultraviolet light emitting element, the emitted light is near ultraviolet light having a long wavelength, and there is almost no harm to the human body, especially eyes and skin. In addition, the peak wavelength of each excitation spectrum of the fluorescent material that emits the three primary colors of light, red, green, and blue, is 360 to 400 nm.
Since it is within the range of nm, fluorescent light can be emitted very efficiently, and when a fluorescent material emitting three colors of red, green, and blue is used, a very bright LED lighting device can be obtained. As described above, even if the ultraviolet light emitting element is turned on for a long time as illumination, there is no effect on health and the LED lighting device 1 can obtain very bright light emission. The characteristics of the ultraviolet light emitting element are the same in the following embodiments.

As described above, the LED of the first embodiment
In the lighting device 1, by using the ultraviolet LED 6 and the phosphor 7 containing a fluorescent material, uniform surface light emission can be obtained, a desired light emission color can be obtained, and free light expression can be achieved.

When the LED lighting device 1 according to the first embodiment is used as outdoor lighting such as a night light, an approach lighting device, a garden light, etc., a solar cell is arranged on the upper surface of the lid 2a, and A power storage device can be arranged in the main body 2 and used as a power source for the ultraviolet LED 6.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 2A is a perspective view showing an overall configuration of an LED lighting device according to a second embodiment of the present invention, and FIG. 2B is a perspective view showing a fluorescent luminous body.

As shown in FIG. 2A, in the LED lighting device 11 of the second embodiment, a conical fluorescent light-emitting body 10 is housed in a housing portion 3 of a column-shaped lighting device main body 9, and a fluorescent light is emitted. The illuminant 10 is mounted on the pedestal 5 of the lighting fixture body 2.
The housing 3 is made of a transparent acrylic resin having a cylindrical shape, and a lid 9a is placed on the housing 3. Four ultraviolet LEDs 6 are mounted on the upper surface of the pedestal 5, and a lighting switch (not shown) provided on the lighting fixture body 2 is turned on.
In this case, power is supplied from a power source (not shown) to irradiate ultraviolet rays. Further, as shown in FIG. 2B, the fluorescent luminous body 10 is formed by applying a fluorescent substance 7 containing a fluorescent material which emits light by irradiation of ultraviolet rays onto the entire back surface of a conical transparent acrylic resin base material 12. It becomes.

Therefore, as shown in FIG. 2A, four ultraviolet LEDs mounted on the upper surface of the pedestal 5
When the fluorescent light-emitting body 10 accommodated in the housing part 3 above the fluorescent light-emitting body 6 is irradiated with ultraviolet rays, the fluorescent body 7 applied to the back surface of the fluorescent light-emitting body 10 emits light of a predetermined fluorescent color, and this light emission is transparent. The fluorescent material 10 is transmitted through the acrylic resin base material 12 and
Is illuminated on the entire surface, and the fluorescent light is emitted with uniform surface emission over the entire circumference of the housing portion 360 degrees. LED lighting equipment 11
Can be set to a desired color by appropriately selecting the fluorescent material contained in the phosphor 7.

As described above, the LED of the second embodiment
In the lighting fixture 11, by using the ultraviolet LED 6 and the phosphor 7 containing a fluorescent material, uniform surface light emission can be obtained, a desired light emission color can be obtained, and free light expression is possible.

The LED lighting device 11 of the second embodiment
Is used as an outdoor light such as a night light, an approach lighting device, a garden light, etc., a solar cell is arranged on the upper surface of the lid 9a, a power storage device is arranged in the lighting device body 9, and this is It can also be used as a power source. Also,
In the LED lighting device 11 of the second embodiment, a transparent acrylic resin is used as the transparent base material 12 of the fluorescent luminous body 10, but instead, a transparent film such as a transparent polyethylene film is used, and screen printing is performed thereon. Alternatively, a character, a symbol, a figure, a pattern, or the like may be printed with the phosphor 7 and then formed into a conical shape to be used as the phosphor 10. By irradiating the fluorescent luminous body 10 with ultraviolet light from the ultraviolet LED 6, printed characters, symbols, figures, patterns, etc. emit fluorescent light and emerge. Therefore, the illumination becomes more excellent in design, and the message to the visitor can be transmitted by printing characters.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 3A is a perspective view showing an overall configuration of an LED lighting device according to a third embodiment of the present invention, FIG. 3B is a perspective view showing a fluorescent body, and FIG. 3C is a perspective view showing a mounting position of an ultraviolet LED. FIG.

As shown in FIG. 3 (a), an LED lighting device 21 according to the third embodiment has a plate-like fluorescent light in which a part of a cylindrical shape is cut into an opening 13a of a cylindrical lighting device body 13. The luminous body 15 is fitted and accommodated. Therefore,
The opening 13 a of the lighting fixture body 13 corresponds to a storage unit that stores the fluorescent light emitting body 15. The column-shaped lighting fixture body 13
It is supported in the horizontal direction by a support rod 14 that extends vertically and is bent at a substantially right angle. As shown in FIG. 3B, the fluorescent luminous body 15 is formed by applying the fluorescent body 7 to the entire back surface of a transparent acrylic resin. FIG.
As shown in (c), the lighting fixture body 1 facing the side of the cylindrical lighting fixture body 13 into which the fluorescent light emitting body 15 is fitted.
On the inner surface of 3, three ultraviolet LEDs 6 are attached side by side in a row.

Therefore, when power is supplied from a power supply (not shown) to the four ultraviolet LEDs 6, the four ultraviolet LEDs L
Fluorescent light-emitting body 15 fitted from ED 6 into housing 13a
Is irradiated with ultraviolet light, and the fluorescent material 7 applied on the entire back surface of the fluorescent light emitting body 15 emits light of a unique fluorescent color. Since the base material of the fluorescent luminous body 15 is a transparent acrylic resin, this light emission passes through the base material of the fluorescent luminous body 15 and
The entire surface of No. 5 glows, and fluorescent light is emitted to the outside with uniform surface light emission. The emission color of the LED lighting device 21 can be set to a desired color by appropriately selecting the fluorescent material contained in the phosphor 7. When the phosphor 7 emits white light, the LED lighting device 21 is suitable for a personal computer lighting device or the like. When the LED lighting device 21 is used as outdoor lighting such as a night light, an approach lighting device, a garden light, or the like, a solar cell is arranged on the outer surface of the lighting device body 13 and a power storage device is provided in the lighting device body 13. It can also be used as a power source for the ultraviolet LED 6.

As described above, the LED of the third embodiment
In the lighting device 21, by using the ultraviolet LED 6 and the phosphor 7 containing a fluorescent material, uniform surface light emission can be obtained, and a desired light emission color can be obtained, and free light expression can be achieved.

Fourth Embodiment Next, a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 4A shows a fourth embodiment of the present invention.
FIG. 2B is a perspective view showing the overall configuration of the LED lighting device according to the first embodiment.
FIG. 3 is a perspective view showing a mounting position of an ultraviolet LED, and FIG. 3C is a perspective view showing a fluorescent light emitting body. FIG. 5A is a perspective view showing an overall configuration of an LED lighting device according to a modification of the fourth embodiment of the present invention, and FIG. 5B is a perspective view showing a fluorescent light emitting body.

As shown in FIG. 4A, the LED lighting device 31 of the fourth embodiment has a lighting device main body 16 having a cylindrical shape with a part cut out, and an upper portion 16a of the main body.
An accommodation portion 18 accommodating the fluorescent light-emitting body 19 is detachably provided in a space between the base and the pedestal 17. The housing portion 18 is made of a transparent acrylic resin having a cylindrical shape, and the fluorescent luminous body 19 is a conical shape having a circumference having substantially the same diameter as the inner diameter of the housing portion 18. Is done.
As shown in FIG. 4B, four ultraviolet LEDs 6 are mounted on the lower surface of the upper body 16a of the lighting fixture body 16. As shown in FIG. 4 (c), the fluorescent luminous body 19 is obtained by applying a fluorescent body 20 containing a fluorescent material which emits light by irradiation of ultraviolet rays onto the entire surface of a paper-shaped conical base material 22. It is. In the fourth embodiment,
There are prepared a number of fluorescent light-emitting members 19 coated with a fluorescent member 20 containing a fluorescent material that emits a different fluorescent color when irradiated with ultraviolet light.

One of the plurality of fluorescent light-emitting bodies 19 is selected and housed in the housing 18, and the housing 18 is placed on the pedestal 17 and mounted on the lighting fixture body 16. When power is supplied to the ultraviolet LED 6 from a power supply (not shown), ultraviolet light is emitted downward, and the fluorescent luminous body 19 accommodated in the accommodating portion 18 emits light of a unique fluorescent color, and the entire surface of the conical surface is transparent. The lighting fixture body 1 penetrating through the housing 18
Fluorescent light is emitted over the entire periphery except for the part blocked by 6. When light emission of the fluorescent luminous body 19 by the fluorescent color is performed for a desired time, the accommodating portion 18 is removed from the lighting fixture body 16 and the fluorescent luminous body 19 is replaced with another fluorescent luminous body.
At this time, the ultraviolet LED 6 may remain lit. Then, when the accommodating portion 18 accommodating the new fluorescent luminous body 19 is mounted on the lighting fixture main body 16, surface light emission of another fluorescent color can be enjoyed.

As described above, the housing 18 is connected to the lighting fixture main body 16.
From the fluorescent light-emitting body 1 housed in the housing portion 18
9 is replaced with a fluorescent luminous body 19 coated with a fluorescent body 20 emitting another fluorescent color, and the housing portion 18 is again replaced with the lighting fixture body 1.
6 can be freely attached to the LED lighting device 3
1 can change the emission color. Thereby, free light expression can be performed with a desired color.

As described above, the LED of the fourth embodiment
In the lighting fixture 31, uniform surface light emission is obtained, and the light emission color can be changed one after another, so that more free light expression is possible.

Next, a modification of the LED lighting device of the fourth embodiment will be described with reference to FIG. As shown in FIG. 5A, an LED lighting device 41 of a modification of the fourth embodiment has almost the same configuration of the lighting device body 16 as the LED lighting device 31. The difference is that the four ultraviolet LEDs 6 are attached to the upper surface of the pedestal 17 instead of the lower surface of the upper body 16a. The housing 18 is also made of a transparent acrylic resin having a cylindrical shape, and the fluorescent luminous body 23 has a conical shape having a circumference substantially equal to the inner diameter of the housing 18 and is pushed into the bottom of the housing 18. Is accommodated.
Here, as shown in FIG.
Is formed by applying a phosphor 20 on the entire back surface of a conical base 24 made of transparent acrylic resin. Also in the modification of the fourth embodiment, there are provided a number of fluorescent light-emitting members 23 coated with the fluorescent members 20 containing a fluorescent material that emits a different fluorescent color when irradiated with ultraviolet light.

One of the plurality of fluorescent light-emitting bodies 23 is selected and housed in the housing 18, and the housing 18 is placed on the pedestal 17 and mounted on the lighting fixture body 16. When power is supplied to the ultraviolet LED 6 from a power supply (not shown), ultraviolet light is emitted upward, and the entire back surface of the fluorescent light emitting body 23 accommodated in the accommodating portion 18 emits a unique fluorescent color. The whole surface of the fluorescent body 23 emits light through the base material 24 made of an acrylic resin. Then, the fluorescent light is radiated from the entire surface of the conical surface through the transparent housing portion 18 over the entire periphery except the portion blocked by the lighting device body 16. After the fluorescent light emitting member 23 emits light of the fluorescent color for a desired period of time, the accommodating portion 18 is removed from the lighting fixture body 16 and the fluorescent light emitting member 23 is replaced with another fluorescent light emitting member. At this time, the ultraviolet LED 6 may remain lit. Then, when the accommodating portion 18 accommodating the new fluorescent luminous body 23 is mounted on the lighting fixture main body 16, surface light emission of another fluorescent color can be enjoyed.

As described above, even in the LED lighting device 41 of the modification of the fourth embodiment, uniform surface light emission can be obtained, and the emission color can be changed one after another.
Freer light expression becomes possible.

The LED lighting device 31 of the fourth embodiment
When using the LED lighting device 41 of the modified example as outdoor lighting such as a night light, an approach lighting device, a garden light, etc.
It is also possible to arrange a solar cell on the upper surface of the main body upper part 16a of the lighting fixture main body 16, arrange a power storage device inside the lighting fixture main body 16, and use this as a power source of the ultraviolet LED 6. Further, in the LED lighting device 41 of the modified example of the fourth embodiment, a transparent acrylic resin is used as the transparent base material 24 of the fluorescent light emitting body 23, but a transparent film such as a transparent polyethylene film is used instead. Alternatively, a character, a symbol, a figure, a pattern, or the like, which is printed by screen printing with the phosphor 20 and then formed into a conical shape, may be used as the fluorescent light emitting body 23. By irradiating the fluorescent luminous body 23 with ultraviolet light from the ultraviolet LED 6, printed characters, symbols, figures, patterns, etc. emit fluorescent light and emerge. Therefore, the illumination becomes more excellent in design, and the message to the visitor can be transmitted by printing characters.

Fifth Embodiment Next, a fifth embodiment of the present invention will be described with reference to FIG. FIG. 6A is a perspective view showing an overall configuration of an LED lighting device according to a fifth embodiment of the present invention, FIG. 6B is a perspective view showing a mounting position of an ultraviolet LED, and FIG. It is a perspective view.

As shown in FIG. 6A, the lighting device main body 28 of the LED lighting device 51 according to the fifth embodiment has two columns 27a and 27b standing upright in a storage portion 29 also serving as a pedestal. The cylindrical main body upper part 25 is connected to these two columns 27a,
27b. A cylindrical accommodating portion 26 made of transparent acrylic resin is attached and supported on the lower surface of the upper portion 25 of the main body, and the lower end portion of the cylindrical accommodating portion 26 enters the storing portion 29. Inside the accommodating portion 26, a fluorescent luminous body 36 in which a fluorescent material is applied to the surface of a conical paper base material is accommodated. Further, the storage unit 29 includes
An openable and closable door 30 is attached. As shown in FIG. 6B, one ultraviolet LED 6 is attached to the center of the lower surface of the upper body 25.

Further, as shown in FIG. 6 (c), the lower end of the fluorescent luminous body 36 is folded back,
By fitting the folded portion into the lower end portion of the cylindrical housing portion 26 protruding inward, the fluorescent light emitting body 36 is supported in the housing portion 26. In the storage unit 29, a plurality of fluorescent light-emitting bodies 36 having different emission colors are stacked and stored.

The LE of the fifth embodiment having such a configuration has
In the D illuminator 51, power is supplied from a power source (not shown) to the ultraviolet LED 6 so that the ultraviolet LED 6
UV light is irradiated downward from above, and the entire surface of the fluorescent luminous body 36 emits a unique fluorescent color. The fluorescent light is transmitted through the transparent accommodating portion 26 and emitted with uniform surface light emission over 360 degrees around the entire circumference. You. When the user wants to change the emission color,
The door 30 is opened, and a desired emission color is selected and taken out from the plurality of fluorescent light-emitting bodies 36 stored therein.
The fluorescent light-emitting body 36 housed in the housing 26 is removed, and a new fluorescent light-emitting body 36 is attached to the housing 26.
During this time, the ultraviolet LED 6 may remain lit. Thereby, light emission with a new fluorescent color can be enjoyed.

As described above, the LED of the fifth embodiment
In the lighting device 51, uniform surface light emission can be obtained, and the light emission color can be changed one after another, so that more free light expression is possible. In addition, since the fluorescent light-emitting bodies 36 having a plurality of different light-emitting colors are stored in the storage unit 29, when changing the light-emitting color, another fluorescent light-emitting body 36 is searched from outside the LED lighting tool 51 and held. The fluorescent light emitter 36 can be replaced immediately without the trouble of coming.

Sixth Embodiment Next, a sixth embodiment of the present invention will be described with reference to FIG. FIG. 7A is a perspective view showing an overall configuration of an LED lighting device according to a sixth embodiment of the present invention, and FIG. 7B is a side view showing an attachment position of an ultraviolet LED and a fluorescent light emitter.

As shown in FIG. 7 (a), in the LED lighting device 61 of the sixth embodiment, a rectangular parallelepiped lighting device body 32 having no end faces also serves as a housing. It is supported by a support column 35. Inside the lighting fixture main body 32, a fluorescent light emitting body 33 in which a fluorescent body 34 is applied to a flat transparent film 33a is accommodated.
That is, as shown in FIG. 7 (b), the fluorescent luminous body 33 formed by applying a fluorescent body 34 containing a fluorescent material that emits light by irradiating ultraviolet rays onto the entire back surface of the flat transparent film 33a is used as a lighting fixture. The main body 32 is inserted and accommodated along a diagonal line in a rectangular parallelepiped. Two adjacent surfaces 32a of a rectangular parallelepiped of the lighting fixture body 32 corresponding to the front side of the fluorescent light emitting body 33
Only the left side is made of a transparent acrylic resin, and the remaining two sides are made of a non-transparent synthetic resin, and a plurality of ultraviolet LEDs 6 are attached to the corners along the longitudinal direction of the rectangular parallelepiped.

Therefore, the plurality of ultraviolet rays LE
When power is supplied from a power source (not shown) to D6, the phosphor 34 applied to the entire back surface of the phosphor 33 is irradiated with ultraviolet rays, and the fluorescence emitted from the phosphor 34 passes through the flat transparent film 33a. Thus, the entire surface of the fluorescent luminous body 33 emits light uniformly. The light emission on the surface of the fluorescent luminous body 33 corresponds to the transparent adjacent 2
Irradiation is performed from the surface 32a, and uniform surface light is obtained along the longitudinal direction of the rectangular parallelepiped of the lighting fixture body 32. Therefore, L
The ED lighting device 61 is a lighting device most suitable for a desk lighting device, an illuminated nameplate, an approach lighting device, and the like. That is, by attaching a base having a power switch to the lower end of the support column 35, the LED lighting device 61 can be used as a desk lighting device. Further, the supporting pillar 35 is fixed to a structure in front of the entrance of the house or the ground, and two transparent adjacent surfaces 32 are fixed.
By writing the address, name, etc. in a, the LED lighting device 6
1 can be used as a lighted nameplate.

As described above, the LED of the sixth embodiment
In the lighting device 61, uniform surface light emission is obtained along the longitudinal direction of the rectangular parallelepiped of the lighting device main body 32, so that the lighting device 61 is optimally used as a desk lighting device, an illuminated nameplate, an approach lighting device, and the like. When the LED lighting device 61 is used as outdoor lighting such as an illuminated nameplate, approach lighting device, or the like, a solar cell is attached to two non-transparent surfaces of the lighting device main body 32, and a power storage device is installed in the lighting device main body 32. It can also be used as a power source for the ultraviolet LED 6. Further, one or more of the characters, symbols, figures, and patterns can be printed on the flat transparent film 33a by screen printing with the fluorescent material 34, thereby forming the fluorescent light emitting body 33. By irradiating the fluorescent light emitting body 33 with ultraviolet light from the ultraviolet LED 6, the printed characters, symbols, figures, and patterns emit fluorescent light and emerge. As a result, the LED lighting device is more excellent in design.

Seventh Embodiment Next, a seventh embodiment of the present invention will be described with reference to FIG. FIG. 8A is a perspective view showing an overall configuration of an LED lighting device according to a seventh embodiment of the present invention, FIG. 8B is a perspective view showing a mounting position of an ultraviolet LED, and FIG. FIG.

As shown in FIG. 8A, an LED lighting device 71 according to the seventh embodiment has a fluorescent light emitting body 73 fitted into a cylindrical lighting device main body 72. FIG.
As shown in (b), the lower end 72 of the lighting fixture body 72
a is a housing part for housing the fluorescent light emitting body 73, and six ultraviolet LEDs 6 are provided on the back side of the upper surface of the lighting fixture main body 72.
Is attached. Further, as shown in FIG. 8C, the fluorescent luminous body 73 is a transparent acrylic disc 7.
5. A phosphor 74 containing a fluorescent material that emits light when irradiated with ultraviolet light is applied to the entire surface of one side of the phosphor 5.
The lower end 7 of the lighting device main body 72 with the surface coated with
2a.

When power is supplied from a power source (not shown) to the six ultraviolet LEDs 6 in the LED lighting device 71 having such a configuration, the ultraviolet LEDs 6 irradiate the fluorescent luminous body 73 with ultraviolet light, and the fluorescent body 74 has its own fluorescent color. Emits light. Since the base material 75 of the fluorescent luminous body 73 is made of a transparent acrylic resin, the light emission of the fluorescent body 74 is transmitted through the base material 75, the entire lower surface of the fluorescent luminous body 73 emits light, and the fluorescent light is radiated to the outside. You. The LED lighting device 71 can be used as a ceiling light, a spot lighting device, or the like by changing the fluorescent color to white or a color close to white. Furthermore, by attaching a flexible arm to the side surface of the lighting fixture body 72 and fixing it to a base provided with a power switch, it can also be used as an arm stand. When used as a ceiling light or spot lighting device, various fluorescent colors other than white can be used.

In each of the above embodiments, a transparent acrylic resin is used as the transparent material forming the housing portion. However, other transparent synthetic resin materials such as polystyrene resin and polyethylene resin or transparent materials such as glass are used. Can also be used. Although a transparent acrylic resin is also used as a transparent base material of the fluorescent light emitting body, other transparent synthetic resin materials such as polystyrene resin and polyethylene resin or transparent materials such as glass can be used.

Further, an ultraviolet light emitting element having a peak emission wavelength in the range of 360 nm to 400 nm is used.
Any wavelength range may be used.

The structure, shape, quantity, material, size, connection relationship, and the like of other parts of the LED lighting fixture are not limited to the above embodiments.

[0073]

As described above, the LED lighting device according to the first aspect of the present invention has a fluorescent material whose surface is coated with a phosphor containing a fluorescent material made of at least one of inorganic and organic materials which emits light when irradiated with ultraviolet light. A lighting device body having a light-emitting body, a housing portion for housing the fluorescent light-emitting body, and a part or all of the housing portion being a window portion for radiating fluorescence emitted by the fluorescent light-emitting body to the outside; and the lighting device body. And one or more ultraviolet LEDs having an ultraviolet light emitting element, which are attached to a position facing the surface of the fluorescent light emitting device, and a power supply for supplying power to the ultraviolet LEDs.

In the LED lighting device having such a configuration, when power is supplied from a power source to one or two or more ultraviolet LEDs attached to a position of the lighting device body facing the surface of the fluorescent light emitting member, the fluorescent light emitting member is turned off. The fluorescent material applied to the surface of the substrate is irradiated with ultraviolet rays, and the fluorescent material emits light in a unique fluorescent color, so that the entire surface of the fluorescent luminescent material emits light uniformly. Then, the fluorescent light is radiated to the outside from the window of the storage unit that stores the fluorescent luminous body. By selecting a phosphor to be applied to the fluorescent luminous body, it is possible to emit light of various colors including white, and various light expressions are possible according to the application of the LED lighting device.

As described above, by using the ultraviolet LED and the fluorescent material, uniform surface light emission can be obtained, and a desired light emission color can be obtained, thereby providing an LED lighting device capable of freely expressing light.

The LED lighting device according to the second aspect of the present invention
One of inorganic or organic materials that emits light when irradiated with ultraviolet light
A fluorescent or luminous body made of a transparent or translucent material coated on the back surface with a fluorescent material containing a fluorescent material composed of the above, and a housing part for housing the fluorescent light emitting body, wherein a part or all of the housing part is fluorescent. An illuminator body which is a window for radiating fluorescent light emitted from the illuminant to the outside; and one or more ultraviolet LEDs having an ultraviolet light emitting element attached to a position of the illuminator body opposite to a back surface of the fluorescent illuminant. And a power supply for supplying power to the ultraviolet LED.

In the LED lighting device having such a configuration, when power is supplied from a power source to one or more ultraviolet LEDs attached to a position opposite to the back surface of the fluorescent light emitting body of the lighting device body, the fluorescent light emitting device The fluorescent material applied to the back surface of the substrate is irradiated with ultraviolet light, and the fluorescent material emits a unique fluorescent color. Here, since the fluorescent material is made of a transparent or translucent material, the light emitted from the fluorescent material passes through the fluorescent material and the entire surface of the fluorescent material emits light uniformly. Then, the fluorescent light is radiated to the outside from the window of the storage unit that stores the fluorescent luminous body. By selecting a phosphor to be applied to the phosphor, it is possible to emit light of various colors including white.
Various light expressions are possible depending on the use of the ED lighting device.

In this way, by using the ultraviolet LED and the fluorescent material, uniform surface light emission can be obtained, and a desired light emission color can be obtained, thereby providing an LED lighting device capable of freely expressing light.

The LED lighting device according to the third aspect of the present invention
In the configuration of claim 1 or claim 2, the fluorescent luminous body has a conical shape.

Therefore, in addition to the effects described in claim 1 or claim 2, by attaching the ultraviolet LED to the apex of the cone of the fluorescent luminous body, fluorescent light is emitted from the entire surface of the conical surface or the back surface. When emitted, a uniform surface emission is obtained over a 360 degree circumference of the cone.

In this way, an LED illuminator capable of obtaining more uniform surface light emission even from the point light source ultraviolet LED is obtained.

The LED lighting device according to the fourth aspect of the present invention
In any one of claims 1 to 3,
The housing is detachable from the lighting fixture body.

Therefore, in addition to the effects described in any one of the first to third aspects, the accommodating portion is detached from the lighting fixture main body, and the fluorescent luminous body accommodated in the accommodating portion is changed to another fluorescent color. By replacing the fluorescent light emitting body coated with a fluorescent light emitting body, and mounting the housing portion again on the lighting device body,
It is possible to freely change the emission color of the LED lighting device. Thereby, free light expression can be performed with a desired color.

In this way, uniform surface light emission can be obtained, and the emission color can be changed one after another, thus providing an LED lighting device capable of more freely expressing light.

The LED lighting device according to the fifth aspect of the present invention
In any one of claims 1 to 3,
A storage unit for storing the plurality of fluorescent light emitters is provided in the lighting fixture body, and any one of the plurality of fluorescent light emitters is replaced from the storage unit with the fluorescent light emitter stored in the storage unit. Is what you can do.

Therefore, in addition to the effects described in any one of the first to third aspects, in addition to the effects described above, the fluorescent luminous body accommodated in the accommodating portion is selected from the plurality of fluorescent luminous bodies stored in the storing portion. By replacing with any one, the emission color of the LED lighting fixture can be freely changed. Thereby, free light expression can be performed with a desired color. In addition, since the plurality of fluorescent light-emitting members are stored in the storage unit, it is not necessary to search for and bring in a fluorescent light-emitting member of a desired emission color from outside the LED lighting device, and the replacement can be performed immediately.

In this manner, uniform surface light emission can be obtained, and the emission color can be changed one after another, thus providing an LED lighting device capable of more freely expressing light.

The LED lighting device according to the invention of claim 6 is
In the configuration of claim 2, the fluorescent light-emitting body is formed by applying the fluorescent substance to a back surface of a flat transparent film, and the lighting fixture body is a rectangular parallelepiped having no end faces, and the lighting fixture body is the rectangular parallelepiped. The fluorescent light-emitting body is also housed along a diagonal line in the rectangular parallelepiped, and only two adjacent surfaces of the rectangular parallelepiped corresponding to the front surface side of the fluorescent light-emitting body are transparent. Things.

In the LED lighting device having such a structure, in addition to the effect described in claim 2, an ultraviolet LED is attached to the remaining two corners which are not transparent, and ultraviolet light is applied to the back surface of the flat fluorescent light emitting body. By the irradiation, the fluorescent light emitted from the phosphor passes through the flat transparent film, and the entire surface of the fluorescent luminous body emits light uniformly. The light emitted from the surface of the fluorescent material is emitted from two transparent adjacent surfaces corresponding to the surface of the fluorescent material, and uniform surface light is obtained along the longitudinal direction of the rectangular parallelepiped. For this reason, the lighting device is optimal for a desk lighting device, an illuminated nameplate, an approach lighting device, and the like.

In this manner, uniform surface light emission is obtained along the longitudinal direction of the rectangular parallelepiped, so that an LED lighting device optimal for a desk lighting device, an illuminated nameplate, an approach lighting device, and the like can be obtained.

An LED lighting device according to the invention of claim 7 is
In any one of claims 2 to 6,
The fluorescent luminous body is composed of a transparent film and
It is formed by printing one or more of symbols, figures, and patterns.

In the LED lighting device having such a configuration, in addition to the effects described in any one of the second to sixth aspects, since the base material of the fluorescent luminous body is a transparent film, it is screen printed. Characters, symbols, figures, and patterns can be easily printed on the phosphor. By irradiating such a fluorescent luminous body with ultraviolet rays from an ultraviolet LED, one or more of the printed characters, symbols, figures, and patterns emits fluorescence and emerges. Therefore, the illumination becomes more excellent in design, and the message to the visitor can be transmitted by printing characters.

In this way, the LED lighting device can provide illumination superior in design and can transmit a message to a visitor by printing characters.

The LED lighting device according to the invention of claim 8 is:
In any one of claims 1 to 7,
The fluorescent material includes a red fluorescent material that emits red light when irradiated with ultraviolet light, a green fluorescent material that emits green light when irradiated with ultraviolet light, and a blue fluorescent material that emits blue light when irradiated with ultraviolet light.

Therefore, in addition to the effects described in any one of claims 1 to 7, three kinds of fluorescent materials that emit the three primary colors of light are mixed at a predetermined ratio to form a phosphor. By irradiating the fluorescent luminescent material coated with such a fluorescent material with ultraviolet light from an ultraviolet LED, white or near daylight luminescence can be obtained, which is extremely suitable as a desk lighting device, a personal computer lighting device, indoor lighting, and the like. Becomes

In this manner, white or near daylight light emission can be obtained with uniform surface light emission, and the LED lighting device is extremely suitable as a desk lighting device, a personal computer lighting device, a room lighting device, and the like.

The LED lighting device according to the ninth aspect of the present invention
In any one of claims 1 to 8,
The ultraviolet light emitting element has a peak light emission wavelength of 360n.
m is in the range of 400 nm.

Therefore, in addition to the effect described in any one of the first to eighth aspects, the center emission wavelength of the ultraviolet light emitting element is 380 nm, and the light emitted from the ultraviolet light emitting element has a long wavelength. It is near-ultraviolet light and has little harm to the human body, especially eyes and skin. Moreover, since the peak wavelengths of the respective excitation spectra of the fluorescent materials that emit the three primary colors of light, red, green, and blue, all fall within the range of 360 nm to 400 nm, the fluorescent light can be emitted very efficiently. When a fluorescent material that emits three colors of red, green, and blue is used, a very bright LED lighting device can be obtained.

Thus, even if the ultraviolet light emitting element is turned on for a long time as illumination, there is no effect on health, and an LED illuminator capable of emitting very bright light is obtained.

[Brief description of the drawings]

FIG. 1A is a perspective view showing an overall configuration of an LED lighting device according to a first embodiment of the present invention, FIG. 1B is a perspective view showing a mounting position of an ultraviolet LED, and FIG. It is a perspective view showing a body.

FIG. 2A is a perspective view showing an overall configuration of an LED lighting device according to a second embodiment of the present invention, and FIG. 2B is a perspective view showing a fluorescent light emitting body.

FIG. 3A is a perspective view showing an overall configuration of an LED lighting device according to a third embodiment of the present invention, FIG. 3B is a perspective view showing a fluorescent body, and FIG. It is a perspective view showing a position.

FIG. 4A is a perspective view showing an overall configuration of an LED lighting device according to a fourth embodiment of the present invention, FIG. 4B is a perspective view showing a mounting position of an ultraviolet LED, and FIG. It is a perspective view showing a body.

FIG. 5A is a perspective view showing an overall configuration of an LED lighting device according to a modification of the fourth embodiment of the present invention, and FIG.
FIG. 3 is a perspective view showing a fluorescent luminous body.

FIG. 6A is a perspective view showing an overall configuration of an LED lighting device according to a fifth embodiment of the present invention, FIG. 6B is a perspective view showing a mounting position of an ultraviolet LED, and FIG. It is a perspective view which shows the inside of.

FIG. 7A is a perspective view showing an overall configuration of an LED lighting device according to a sixth embodiment of the present invention, and FIG. 7B is a side view showing an attachment position of an ultraviolet LED and a fluorescent luminous body.

FIG. 8A is a perspective view showing an entire configuration of an LED lighting device according to a seventh embodiment of the present invention, FIG. 8B is a perspective view showing a mounting position of an ultraviolet LED, and FIG. It is a perspective view showing a body.

[Explanation of symbols]

1,11,21,31,41,51,61,71 LE
D lighting equipment 2,9,13,16,28,32,72 lighting equipment body 3,13a, 18,26,32,72a housing part 4,10,15,19,23,33,36,73 fluorescent light emitting body 7, 20, 34, 74 Phosphor 29 Storage part 32a Two adjacent surfaces 33a Planar transparent film

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G09F 13/20 F21P 1/02 A 13/42 F21S 1/10 Q H01L 33/00 1/02 G // F21W 121: 00 9/02 Q F21Y 101: 02 1/12 B F term (reference) 3K060 AA06 BA15 BB02 BB03 BB05 BD04 EA01 5C096 AA11 BA03 BA04 CA02 CA03 CA14 CB01 CC02 CC06 CC24 CC36 DA01 DA03 DD00 5F041 AA11 CA40 DC07 FF11

Claims (9)

[Claims] 1. A fluorescent luminous body having a surface coated with a fluorescent material containing a fluorescent material made of at least one of an inorganic or organic material that emits light by irradiation with ultraviolet light, and a housing part for housing the fluorescent light emitting body, A lighting device body in which a part or the whole of the housing portion is a window portion that emits the fluorescence emitted by the fluorescent light emitter to the outside; and an ultraviolet light emitting element attached to a position of the lighting device body facing the surface of the fluorescent light emitter. An LED illuminator comprising: one or more ultraviolet LEDs having: a power source for supplying power to the ultraviolet LEDs. 2. A fluorescent material made of a transparent or translucent material having a back surface coated with a fluorescent material containing at least one of an inorganic or organic material that emits light when irradiated with ultraviolet light, and the fluorescent material is housed therein. A lighting device main body that is a window portion that emits the fluorescent light emitted from the fluorescent luminous body to the outside, and a part or the whole of the housing portion faces the back surface of the fluorescent luminous body of the lighting device main body. An LED lighting device, comprising: one or more ultraviolet LEDs having an ultraviolet light emitting element attached to a position; and a power supply for supplying power to the ultraviolet LEDs. 3. The LED lighting device according to claim 1, wherein the fluorescent luminous body has a conical shape. 4. The LED lighting device according to claim 1, wherein the housing is detachable from the lighting device main body. 5. A storage unit for storing a plurality of said fluorescent luminous bodies in said lighting fixture main body, and said storage unit stores any one of said plurality of said fluorescent luminous bodies from said storing unit. The L according to any one of claims 1 to 3, wherein the L can be replaced with a fluorescent light emitter.
ED lighting equipment. 6. The fluorescent luminous body is formed by applying the fluorescent substance on a back surface of a flat transparent film, and the illuminating device main body is a rectangular parallelepiped without both end surfaces, and the illuminating device main body is provided in the housing portion. The fluorescent light-emitting body is accommodated along a diagonal line in the rectangular parallelepiped, and the lighting fixture body is such that only two adjacent surfaces of the rectangular parallelepiped corresponding to the surface side of the fluorescent light-emitting body are transparent. L according to claim 2, characterized in that:
ED lighting equipment. 7. The fluorescent light emitting device according to claim 2, wherein one or more of characters, symbols, figures, and patterns are printed on the transparent film with the fluorescent material. 7. The LED lighting device according to 6. 8. The fluorescent material includes a red fluorescent material that emits red light when irradiated with ultraviolet light, a green fluorescent material that emits green light when irradiated with ultraviolet light, and a blue fluorescent material that emits blue light when irradiated with ultraviolet light. The LED according to any one of claims 1 to 7, characterized in that:
Lighting equipment. 9. The LED lighting device according to claim 1, wherein the ultraviolet light emitting element has a peak emission wavelength in a range from 360 nm to 400 nm.