JPH06267667A - Variable light color type lighting system - Google Patents

Abstract

PURPOSE:To control the light color of white light in various ways, and concurrently to enhance heat radiating performance. CONSTITUTION:Let a plurality of the kinds of fluorescent lamps 13a emitting white lights L and D different in light color be paired, and each lamp group 13 including the aforesaid pair is built in within lighting equipment 12. The heat generation sections of respective lighting means 18 and 19 are divided into two units 18a and 18a, and 19a and 19a so as to be disposed within the lighting equipment 12 while being dispersed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a plurality of types of fluorescent lamps or the like, each of which emits white light of different light colors such as light bulb color (L color) and daylight color (D color). The present invention relates to a light color variable illuminating device that is switched on and off.

[0002]

2. Description of the Related Art Conventionally, as an example of an illuminating device incorporating a plurality of fluorescent lamps, there is one shown in FIG. This lighting device 1 has a plurality of fluorescent lamps 3, 3 ... Which emit white light of a single light color arranged in a row in a lighting device 2 and incorporated therein.

The lighting fixture 2 has a light output opening end of the fixture main body 4 closed by a shade 5 which is a translucent cover, and the plurality of fluorescent lamps 3 are arranged in a row in a row along the radial direction. Each is attached to the socket 6. Note that FIG. 5 shows only one of the pair of front and rear sockets 6 and omits the other, and reference numeral 7 denotes a ballast or the like of the lighting device.

[0004]

There are various light colors in the white light emitted by the fluorescent lamp 3. For example, the daylight color (D color) having a color temperature of about 6500K is a slightly bluish white light. The light bulb color (L color) having a color temperature of about 3000K is a white light with a reddish tinge because it induces a cool sensation and is suitable for winter.

However, the above-mentioned conventional lighting device 1
Since all the fluorescent lamps 3, 3 ... Emit a single light color, that is, white light having the same color temperature, the light color of white light is appropriately changed according to the season and the purpose of use of the illumination. There is a problem that the atmosphere in the room cannot be changed by changing it.

Therefore, the present invention has been made in view of such circumstances, and an object thereof is to provide a light color variable illuminating device capable of variously controlling the light color of white light.

[0007]

The present invention is configured as follows in order to solve the above-mentioned problems.

The invention according to claim 1 of the present application (hereinafter, referred to as the first
Of the invention), a lamp group having a plurality of types of discharge lamps that emit white light of different light colors, a plurality of lighting devices for respectively lighting the discharge lamps for each of the light colors, and these lighting devices. A switching device for selectively switching the lighting of the discharge lamp among the plurality of light colors, and a lighting fixture including at least the switching device, the lighting device, and the lamp group. It is characterized in that the heat generating portion is divided into a plurality of parts and is distributed and arranged in the lighting fixture.

Further, in the invention according to claim 2 of the present application (hereinafter referred to as the second invention), the heating portion of each lighting device is 2
It is characterized in that it is divided and arranged on a diagonal line of the luminaire.

Further, in the invention according to claim 3 of the present application (hereinafter referred to as the third invention), the heat generating portion of each lighting device is a ballast, which is divided into two parts, and the discharge lamp in the lighting fixture is It is characterized by being arranged on both sides of both ends in the axial direction.

Furthermore, the invention according to claim 4 of the present application (hereinafter referred to as the fourth invention) is characterized in that the lighting fixture has a heat dissipation hole opened near the heat generating portion of each lighting device. And

[0012]

[Action]

<1st to 4th inventions> Since the heat generating portion of each lighting device is divided into a plurality of parts such as two and distributed in the lighting equipment, the heat radiation effect can be enhanced, and the local lighting equipment locality. The temperature rise can be suppressed. For this reason, it is possible to suppress a decrease in the luminous flux of the discharge lamp and a thermal deformation of the shade of the lighting fixture in the vicinity of a location where a local temperature rise occurs in the lighting fixture.

<Second Invention> Further, in the second invention, since the divided heating elements of each lighting device are respectively arranged on the diagonal line of the lighting fixture, the entire light color variable lighting device is provided. As a result, the weight can be balanced and the ease of handling can be improved.

<Third Invention> Further, in the third invention, since the divided heat generating portions of the respective lighting devices are arranged on both sides of both ends in the axial direction of the discharge lamp, these lighting devices are arranged. Since it is not necessary to arrange the lamp group and the lamp group vertically in the lighting equipment, the lighting equipment can be thinned.

<Fourth Invention> Further, in the fourth invention, since the heat dissipation hole is opened in the lighting fixture near the heat generating portion of each lighting device, the heat generated in the heat generating portion is radiated. The heat can be released from the holes to enhance the heat dissipation effect.

[0016]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4, the same or corresponding parts are designated by the same reference numerals.

FIG. 1 is a plan view of an embodiment including the first and second inventions of the present application, and FIG. 2 is a sectional view taken along the line II--II of FIG. A lamp group 13 is built in the lighting fixture 12.

The lighting fixture 12 has a light exit opening end of a fixture main body 14 which is attached to a mounting body such as a ceiling (not shown) and has a rectangular prismatic shape with a lid, and is closed by a shade 15 which is a translucent cover.

The lamp group 13 is composed of, for example, a straight tubular fluorescent lamp 13a, and includes a plurality of L-color lamps 13L for emitting a light bulb color (L color) and a plurality of D-color lamps 13D for emitting a daylight color (D color). Have. Color temperature of L color is about 30
At 00K, it is a reddish white light, which makes the viewer feel warm. On the other hand, the color temperature of D color is about 65.
At 00K, it is a bluish white light and gives a cool sensation.

The fluorescent lamp 13a has, for example, a pair of electrodes (not shown) sealed in the axial ends of a glass bulb 13a1 made of, for example, a straight tube, together with appropriate amounts of mercury and rare gas, and the outer peripheral portions of the sealed ends. A pair of bases 13a2
These fluorescent lamps 1 are fitted and fixed to each other.
3a to both ends of the pair of left and right sockets 16a, 1 in FIG.
6b are detachably attached. The sockets 16a and 16b of each pair are fixed to the reflection surface side of the reflection plate 17,
The reflection plate 17 is stretched inside the light exit opening of the instrument body 14 so as to reflect the light from each fluorescent lamp 13a toward the shade 15 side.

The lamp group 13 includes one L-color lamp 13L and one D-color lamp 13D as a pair.
The lamps are arranged substantially parallel to each other, and a plurality of pairs thereof are arranged in the lateral (radial) direction, and the L-color lamps 13L and D are arranged in the arranged direction.
The color lamps 13D are arranged so as to be alternately located.

As shown in FIG. 3, the L-color lamps 13L are electrically connected to the L-color lighting device 18, and the D-color lamps 13D are electrically connected to the D-color lighting device 19, respectively. The L and D color lamps 13L and 13D are turned on and off by the lighting devices 18 and 19 so that they can be dimmed by the respective light colors.

The lighting devices 18, 1 for L and D colors are also provided.
9 is connected to the switching device 20, and when a switching signal from a remote controller or the like (not shown) is received by a sensor or the like (not shown), the lighting devices 18 and 19 for the L and D colors turn on each light color. It is designed to switch between light colors.

The L, D color lighting devices 18,
Reference numeral 19 has an inverter for converting the power supply frequency, a ballast, and the like, and has a heat generating portion such as a ballast that generates heat during ON operation.

Therefore, as shown in FIG. 1, each heat generating portion of each of the L and D color lighting devices 18 and 19 is divided into, for example, two units 18a and 18b and 19a and 19b, respectively.
These units 18a, 18b, 19a, 19b are arranged in the lighting fixture 14 so as to be dispersed on respective diagonal lines thereof. In FIG. 1, reference numeral 20a is a lead wire.

Therefore, according to the present embodiment, the plurality of L and D color lamps 13L and 13D are turned on or off by the respective L and D color lighting devices 18 and 19 so as to be dimmable for each light color. Since these lightings can be switched to one of the light colors by the switching device 20, the white light can be appropriately controlled to various light colors L and D.

Further, since the respective heat generating portions of the L and D color lighting devices 18 and 19 are divided into two units 18a and 18b and 19a and 19b, respectively, which are dispersedly arranged in the lighting fixture 12, the heat dissipation effect is improved. It is possible to suppress a local temperature rise in the lighting fixture 12. For this purpose, the luminaire 1
It is possible to suppress a decrease in the luminous flux of the fluorescent lamp 13a in the vicinity thereof due to a local temperature increase in 2 and also to suppress thermal deformation of the shade 15.

Further, lighting devices 18a and 1 for L and D colors are provided.
Since 8b, 19a and 19b are dispersed and arranged on the diagonal line of the luminaire 12, the weight of the entire apparatus can be balanced and the handling thereof can be facilitated.

However, in the light color variable type illuminating device 11, as shown in FIG.
Since the color lighting devices 18 and 19 and the lamp group 13 are arranged above and below, there is a problem that the fixture thickness da of the lighting fixture 12 becomes thicker, which hinders the reduction in thickness.

Therefore, in the light color variable illuminating device 21 of one embodiment including the third and fourth inventions of the present application shown in FIG.
Each unit 18a and 18 of the D color lighting devices 18 and 19
By arranging b, 19a and 19b inside the luminaire 12 outside the pair of left and right sockets 16a and 16b in the drawing, these sockets 16a and 16b and respective units 18a and 18b, 19a and 19b are luminaires. Body 14
The reflecting plate 17 is omitted while being directly attached to the inner surface of the canopy.

Therefore, in this embodiment, since the respective lighting devices 18, 19 for L and D colors and the respective fluorescent lamps 13a are not arranged vertically in the luminaire 12, they are arranged side by side in the lateral direction. The fixture thickness db of the lighting fixture 12 is smaller than the fixture thickness da of the variable light color lighting device 11, and (db <d
a) can be done.

Further, the fixture body 14 is composed of the respective units 18a, 18b and 19 of the respective L and D color lighting devices 18a and 18b.
The heat radiation holes 22 are opened in the vicinity of a and 19b, and the heat radiation from each unit 18a, 18b, 19a, 19b is radiated to the outside air through these heat radiation holes 22. Therefore, the heat radiation in the lighting fixture 12 can be further enhanced.

In each of the above embodiments, the light colors are two colors L,
A case has been described in which the D-color lamps 13L and 13D are paired and a plurality of pairs are built in the lighting fixture 12.
The present invention is not limited to this. For example, the light color of white light may be N, W colors other than L and D colors, and the number of light colors may be a combination of three or more kinds.

[0034]

As described above, according to the first to fourth inventions of the present application, a plurality of types of discharge lamps having different light colors are provided, and these discharge lamps are switched to any of a plurality of light colors by the lighting device. Since the light is turned on freely, the white light can be controlled to various light colors.

Further, since the heat generating portion of each lighting device is divided into a plurality of parts and arranged in a distributed manner in the lighting equipment, it is possible to enhance the heat dissipation effect and suppress a local temperature rise in the lighting equipment.

For this reason, it is possible to suppress the reduction of the luminous flux of the discharge lamp and the thermal deformation of the shade near the location where the local temperature rise occurs in the lighting equipment.

The second invention of the present application is the same as the second invention of each lighting device.
Since the divided heat generating portions are dispersed and arranged on the diagonal line of the lighting fixture, the weight of the entire device can be balanced and the device can be handled easily.

Further, in the third invention of the present application, since the divided heat generation of each lighting device is distributed to both sides of both ends of the discharge lamp in the axial direction, these lighting devices and the lamp group are provided in the lighting fixture. Since it is not necessary to arrange the lighting fixtures vertically, the lighting fixture can be made thinner.

Furthermore, in the fourth invention of the present application, since the heat dissipation hole is opened in the lighting fixture in the vicinity of the heat generating portion of each lighting device, the heat generated in each lighting device can be dissipated to the outside air through the heat dissipation hole. Therefore, the heat dissipation effect can be enhanced.

[Brief description of drawings]

FIG. 1 is a partially omitted plan view of an embodiment including the first and second inventions of the present application.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a connection diagram of a lighting device and a lamp group shown in FIG. 1 and the like.

FIG. 4 is a vertical cross-sectional view of an embodiment of the variable light color illumination device according to the third and fourth inventions of the present application.

FIG. 5 is a vertical cross-sectional view of a conventional lighting device.

[Explanation of symbols]

 11,21 Variable light color type lighting device 12 Lighting fixture 13 Lamp group 13a Fluorescent lamp 13L L color lamp 13D D color lamp 14 Fixture body 15 Cedes 16a, 16b Pair of sockets 17 Reflector plate 18 L color lighting device 18a, 18b Pair Unit 19 D color lighting device 19a, 19b A pair of D color lighting device pair 20 Switching device 20a Lead wire 22 Radiating holes da, db Fixture thickness 19 Ballast 20 Lighting device 21 L color lighting circuit 22 D color Lighting circuit 23 Switching circuit 24 Lamp holder 25 Pair of lamps 32 Shared socket

Claims (4)

[Claims] 1. A lamp group having a plurality of discharge lamps of a plurality of types each emitting white light of different light colors, a plurality of lighting devices for respectively lighting the discharge lamps for each of the light colors, and A switching device that selectively switches the lighting of the discharge lamp between the plurality of light colors, and a lighting fixture that incorporates at least the switching device, the lighting device, and the lamp group, and heat generation of each of the lighting devices. A variable light color illuminating device characterized in that the parts are divided into a plurality of parts and are dispersedly arranged in the luminaire. 2. The heat generating portion of each lighting device is divided into two,
The variable light color illuminator according to claim 1, wherein the illuminators are arranged on diagonal lines of the luminaire. 3. The heat generating portion of each lighting device is a ballast, is divided into two, and is arranged on both sides of both ends in the axial direction of the discharge lamp in the lighting fixture. The variable light color illuminating device described. 4. The lighting fixture has a heat dissipation hole opened near a heat generating portion of each lighting device.
The variable light color illuminating device described.