JPH06260287A - Light color variable type lighting system - Google Patents

Abstract

PURPOSE:To variously control the lighting of a light source for emitting color lights of white light different in color temperature by a lighting device. CONSTITUTION:A lamp line 13 having a plurality of lamps for emitting white color lights of L, D colors different in color temperature are arranged and contained in a lighting equipment 12 formed by closing the light emitting opening end of an equipment body 14 by a shade 15 in such a manner that the L, D colors are alternately differed. This device also has a lighting device for lighting the lamps simultaneously or switchably between plural kinds of light colors and dimmably.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable light color for switchably lighting a plurality of fluorescent lamps respectively emitting white light having different color temperatures such as light bulb color (L color) and daylight color (D color). Type lighting device.

[0002]

2. Description of the Related Art An example of a conventional lighting device is shown in FIG. The lighting device 1 is, for example, a lighting device main body 2 in the shape of a square cylinder with a lid attached to a ceiling (not shown).
, A plurality of straight-tube fluorescent lamps 3, 3, ... Of single light color are arranged in a horizontal row along the direction perpendicular to the axis, and are detachably mounted in a socket or the like (not shown). A shade 4 which is a translucent cover is attached to the opening end (lower end in the figure).

As shown in FIG. 16, these fluorescent lamps 3, 3, ...
Circuit parts of the lighting device such as the ballast 6 are fixed to the fixture body 2 between the fluorescent lamps 3, 3 ,.

[0004]

By the way, generally, there are various light colors of white light emitted by the fluorescent lamp 3, and for example, a daylight color (hereinafter referred to as D color) having a color temperature of about 6500K is a little. It is a bluish white light, and it is suitable for summer because it invites a cool feeling, but the bulb color (hereinafter referred to as L color) with a color temperature of about 3000K is a slightly reddish white light,
It is suitable for winter because it makes you feel warm.

However, the above-mentioned conventional lighting device 1
, All of the fluorescent lamps 3, 3, ... Can only emit white light with the same color temperature, that is, only a single light color. There is a problem that cannot be changed.

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 appropriately controlling the light color of white light.

[0007]

The present invention is configured as follows to solve the above problems.

The invention according to claim 1 of the present application (hereinafter, referred to as the first
Invention) is formed by closing a light-transmitting cover at the light-emitting opening end of the instrument body, and a plurality of light sources that respectively emit a plurality of types of white light having different color temperatures.
Inside thereof, a lighting fixture in which the plurality of light sources are arranged and arranged in a row so that the light emission colors are alternately different, and the plurality of light sources are simultaneously or switchable between the plurality of types of light colors. And a lighting device that lights in a dimmable manner.

In the invention according to claim 2 of the present application (hereinafter referred to as the second invention), the light sources are arranged in a line on the same plane, and only the light sources at both ends of the arrangement are It is characterized in that it is shifted so as to come closer to the inner surface side of the canopy of the luminaire main body than the same plane.

Further, the invention according to claim 3 of the present application (hereinafter referred to as the third invention) is characterized in that the light sources located at both ends of the light source array have different light colors.

Furthermore, in the invention according to claim 4 of the present application (hereinafter, referred to as a fourth invention), the light sources emit white light of two colors, and the lighting device includes these light sources. It is characterized in that it has a switching circuit for switching lighting between the two colors so as to be freely dimmable. The invention according to claim 5 of the present application (hereinafter referred to as the fifth invention) is characterized in that the light source is a straight tube fluorescent lamp.

Further, the invention according to claim 6 of the present application (hereinafter referred to as the sixth invention) is characterized in that the light sources have the same number of two kinds of light colors.

Furthermore, the invention according to claim 7 of the present application (hereinafter referred to as the seventh invention) is a plurality of light sources which respectively emit a plurality of types of white light having different color temperatures, and the light emitted from the instrument body. It is configured by closing the opening end with a translucent cover, and inside thereof, a lighting fixture in which the plurality of light sources are arranged such that the emission colors are alternately different and built therein, and each of the light sources of the plurality of types. The lighting device includes a lighting device that can be simultaneously or switched between light colors and can be dimmable, and a reflector that reflects the light from the light source to the translucent cover side and that has the lighting device attached. It is characterized by

Further, in the invention according to claim 8 of the present application (hereinafter, referred to as an eighth invention), the luminaire main body is equipped with a mounting tool which is mounted on the mounting body from the inside thereof, and the reflecting plate is mounted on the mounting body. It is characterized in that an opening is formed at a position corresponding to the mounting position of the tool.

[0015]

<First to Eighth Inventions> Since a plurality of light sources each emitting a plurality of types of white light having different color temperatures are arranged in rows so that the light colors are alternately different, By controlling the lighting or dimming of these light sources, the light color of white light can be appropriately controlled. In addition, because multiple light sources are arranged so that the light colors are alternately different, the light distribution when only one arbitrary color light source is turned on and the light distribution when other one color light sources are turned on Can be reduced.

<Second Invention> Since a plurality of light sources are arranged in a row on the same plane and only the light sources at both ends thereof are shifted toward the main body of the luminaire from the same plane of the other light sources, these both ends are arranged. The light from the light source other than the light source of the above can be blocked by the light sources at both ends to prevent the shadow from being projected on the transparent cover, and as a result, the variation in the brightness of the transparent cover can be reduced. You can Further, since the light sources at both ends are shifted so as to be closer to the main body of the luminaire, the luminaire main body can be made thin.

<Fourth Invention> Since a plurality of light sources that respectively emit white light of two colors such as L color and D color can be switched on simultaneously by a switching circuit and can be freely dimmed.
It is possible to continuously control lighting of one light source of two colors, simultaneous lighting of two colors, and lighting of the other color. That is, the light color of the white light can be controlled so that the two colors and their intermediate colors are emitted.

<Fifth and Sixth Inventions> Since the same number of light sources respectively emit white light of two colors, it is possible to easily control the light color when all the light sources are simultaneously turned on to an intermediate color of two colors. You can

<Seventh Invention> Since the light from each light source is reflected by the reflecting plate toward the transparent cover, the brightness of the transparent cover can be increased accordingly. In addition, since the lighting device is attached to the reflector, it is not necessary to attach a lighting circuit to the lighting fixture body to which the hook ceiling and fixtures are attached so as not to interfere with these hook ceilings. Easy to attach to the device body.

<Eighth Invention> Since the reflector is provided with an opening at a position corresponding to the device position of the fixture attached to the inside of the luminaire main body, the fixture can be easily manually operated through this opening. can do. Therefore, the lighting fixture body can be easily attached to the attachment body.

[0021]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 14, common or corresponding parts are designated by the same reference numerals.

FIG. 1 is a vertical sectional view of an embodiment including the first to sixth inventions of the present application. In the drawing, a variable light color type illuminating device 11 is provided in a luminaire 12 having a cylindrical shape with a lid, and a lamp row 13 is provided. Built in. The lamp row 13 is formed by arranging a plurality of fluorescent lamps in one row in the lateral direction in the figure, and the lighting fixture 12 has a light-transmitting cover 15 at the light exit opening end of the lower surface of the lighting fixture body 14 in the figure. More closed.

The lamp array 13 includes a plurality of L lamps 13L for emitting white light of white bulb color (L color) and daylight (D).
A plurality of D lamps 13D that emit white light of (color), and the L and D colors are alternately repeated in the lateral direction, for example, 1
The lamps are arranged in rows, and lamps of the same color, for example, L lamps 13L0 and 13Lp of L color are arranged at both ends of the arrangement.

Each L lamp 13L has a color temperature of about 3000K.
This light source emits white light of incandescent lamp color, and this L color is reddish white light and gives warmth to the viewer.

On the other hand, each D lamp 13D has a color temperature of about 65.
It is a bluish white light of 00K and gives a cool sensation.

As shown in FIG. 2, these L and D lamps 13L and 13D are electrically connected to an L color lighting circuit 16L and a D color lighting circuit 16D, respectively.
L and D lamps 13 by color lighting circuits 16L and 16D
L and 13D are individually or simultaneously turned on, and the light is appropriately adjusted.

Further, these L and D color lighting circuits 16L,
16D is electrically connected to the switching circuit 17, respectively, and receives a control signal such as a switching signal or a dimming signal from a remote controller or the like by a sensor (not shown) so that the L and D lamps 13L and 13D are turned on. Switching,
Alternatively, both of them are turned on at the same time, or the lighting is appropriately controlled to continuously adjust the light. Reference numeral 16 in the figure is a ballast of the lighting device.

Therefore, according to this embodiment, one of the L and D colors or the L and D lamps 13L and 13D, or
Since both of these colors can be turned on at the same time, it is possible to expand the range of hobbies such as changing the atmosphere in the room by appropriately controlling the light color according to the season or time such as summer or winter.

Moreover, since the L and D lamps 13L and 13D are alternately arranged in the lateral direction, it is possible to easily balance the luminance and the light color of both the L and D colors.

Furthermore, since the L and D lamps 13L and 13D can be continuously dimmed, the taste of lighting can be further enhanced in combination with the control of the light color.

However, such a light color variable lighting device 1
1, the shadow s of the L lamps 13L0 and 13Lp at both ends of the lamp row 13 arranged in a horizontal row as shown in FIG.
Are projected on the side peripheral surface of the shade 15 to cause variations in brightness, and therefore, the variable light color type illumination device 14a shown in FIG. 3, for example.
As shown in FIG.
The depth da of the side wall 14a1 shown on the left and right in the figure
The shadows s of the lamps 13L0 and 13Lp may be deepened to the portion where they are projected.

According to this, the lamps 13L0, 1 at both ends are
Since 3 Lp s is projected on the side peripheral wall 14a1 of the device body 14a having a light shielding property, it is possible to reduce the variation in the brightness of the side peripheral surface of the shade 15.

However, in the variable light color illuminating device 11a, since the depth da of the side peripheral wall 14a1 of the fixture body 14a is increased, the overall thinning is hindered and the side peripheral surface of the shade 15a is prevented. There is an inconvenience that the luminous flux is reduced toward one side.

Therefore, the variable light color type illumination device 1 shown in FIG.
In 1b, the same number of L and D lamps 13L and 13D,
The horizontal rows (lines) H including these axes are arranged in a horizontal row at substantially equal pitches, and L and D lamps 13L0 and 13Dp having different light colors are arranged at both ends of the lamp row 13, respectively. Also, the L and D lamps 13L0,1 at these ends
3Dp is slightly displaced from the horizontal line (H) including the axes of the other lamps 13L and 13D so as to be closer to the inner surface of the canopy of the instrument body 14b.

For this purpose, the lamps 13L0, 13 at both ends are
Since it is possible to prevent the shadow s of Dp from being projected on the side peripheral surface of the shade 15b, it is possible to reduce the variation in the brightness of the side peripheral surface of the shade 15b, and at the same time, the device body 14b.
By making the depth db of the side peripheral wall 14b1 shallow, it is possible to reduce the thickness of the variable light color illuminating device 11b as a whole.

FIG. 5 is a vertical cross-sectional view of one embodiment of the seventh invention of the present application. The variable light color illuminator 11c of this embodiment is different from the above embodiments in that a reflector 18 is provided. There is a feature, and in FIG. 5, reference numeral 19 is each of the L and D lamps 13L and 13D.
Is a socket to which bases at both axial ends are detachably attached and electrically connected, and only one of the front and rear pair is shown.

The reflector 18 is fixed to the light emitting opening end of the fixture body 14 so as to close the opening slightly inward of the light emitting end, and is located between the ballasts 16 and 16 and the lamp array 13. It is installed closer to the stabilizer 16 than the position, and a reflective paint or the like is applied to the lower surface in the figure, that is, one surface on the side of the shade 15 to form a reflective surface.

Therefore, the light from each of the lamps 13L and 13D can be reflected toward the shade 15 by the reflecting plate 18, and the brightness of the shade 15 can be increased.

The reflector plate 18 is provided with heat-dissipating openings 20 at the bottom of each ballast 16 in the drawing, so that the heat generated by each ballast 16 is dissipated from each opening 20.

Further, the reflector 18 accommodates wirings 21 for connecting the respective ballasts 16 and the like inside (upper side in the drawing) of the reflection plate 18 to prevent these wirings 21 from being seen over the shade 15. It has a beautiful appearance.

Like the reflector 18a shown in FIGS. 6 and 7, the reflector 18 is provided with a plurality of small holes 22 for heat dissipation in places other than the opening 20 corresponding to the installation position of the ballast 16. You may pierce. In addition, as shown in FIG.
A bundling tool 23 for bundling and holding the bunches may be provided on the inner surface of the canopy portion of the instrument body 14.

Further, each opening 20 for heat dissipation or each small hole 22 may be formed in each hidden hole 23 shown in FIGS. 9 to 12. Each of these hidden holes 23 is provided to prevent the opening from being seen through the shade 15 and to enhance the aesthetic appearance, and a cut is made in the portion corresponding to the three sides of each small hole 22 on the reflection plate 18b. As shown in FIGS. 9 to 12, the cut-and-raised piece 23b is raised obliquely downward or obliquely upward in the drawing, or the cut-and-raised piece 23b is bent into a hook shape.
It is projected above or below.

FIG. 13 is a longitudinal sectional view of an embodiment of the eighth invention of the present application. In the figure, the variable light color type lighting device 11d is mounted on the outer surface of the canopy of the main body 14d of the fixture, such as the ceiling 24 or the like. The other hooking ceiling 25 or the like which is hooked and fixed to a hooking ceiling (not shown) or the like is provided, and a pair of left and right fittings 26a, 2 in the drawing are provided inside the canopy.
6b is attached to the reflector 18d, and the pair of attachments 2
At the location corresponding to the mounting position of 6a, 26b, the operation window 2
7 is open.

Therefore, only the shade 15 is attached to the instrument body 1
Once removed from 4d, the reflector 18d is attached to the instrument body 14d.
Mounted on the fixture 26 through the operation window 27.
Since a and 26d can be manually operated, the instrument body 14d can be easily attached to the ceiling 24 or the like.

Since it is necessary to mount the hooking ceiling 25 and the fixtures 26a and 26b on the inner surface of the central portion of the canopy portion of the instrument body 14d, control from the lighting device or the remote controller should be made so as not to interfere with them. When a sensor or the like (not shown) that receives a signal is attached to the instrument body 14d, the attachment is not easy.

Therefore, as shown in FIG.
By mounting the lighting device such as the ballast 16 and the sensor on the upper surface of FIG.

[0047]

As described above, according to the first to eighth inventions of the present application, since the lighting device can control the lighting of the plurality of light sources respectively emitting the plurality of white lights having different color temperatures, The color of white light can be controlled in various ways.
Further, since the light sources are arranged in a row so that the light colors thereof are alternately different, it is possible to reduce or prevent the variation of the light distribution when the light sources of each light color are individually turned on.

In the second invention of the present application, a plurality of light sources are arranged in a line on the same plane, and only the light sources at both ends thereof are shifted so as to be closer to the main body of the luminaire than the same plane. Therefore, it is possible to prevent the shadows of the light sources at both ends from being projected on the translucent cover and reduce the unevenness of the brightness. It is possible to reduce the thickness of the instrument body.

Further, according to the fourth invention of the present application, since a plurality of light sources which respectively emit white light of two colors can be switched on by a switching circuit, one or both of the two colors or an intermediate color thereof can be used as a light color. Can be controlled variously, and the range of light color control can be expanded.

Further, in the fifth and sixth inventions of the present application, since the number of light sources for emitting white light of two colors is the same, the light colors can be balanced when all the light sources are simultaneously turned on.

Further, the seventh invention of the present application has the reflecting plate for reflecting the light from the light source to the transparent cover side, so that the brightness of the transparent cover can be increased.

Since the lighting device is attached to the reflector,
The lighting device can be easily attached to the main body of the fixture in comparison with the case where the lighting device is attached so as not to overlap with the hook ceiling or the like.

Further, in the eighth invention of the present application, the reflector is
Since the opening is formed at a position corresponding to the mounting position of the fitting, the fitting can be easily manually operated through the opening. Therefore, the lighting fixture main body can be easily attached to the attachment body.

[Brief description of drawings]

FIG. 1 is a schematic vertical cross-sectional view of an embodiment of a variable light color lighting device including the first to sixth inventions of the present application.

FIG. 2 is a diagram showing wiring of the lighting device of the embodiment shown in FIG.

FIG. 3 is a schematic vertical sectional view of another embodiment of FIG.

FIG. 4 is a schematic vertical sectional view of an embodiment including the second, third and sixth inventions of the present application.

FIG. 5 is a schematic vertical sectional view of an embodiment of the seventh invention of the present application.

6 is a longitudinal sectional view of a main part showing a modified example of the reflection plate of FIG.

7 is a plan view of a part of the reflector shown in FIG.

FIG. 8 is a schematic vertical sectional view showing another modification of the reflection plate shown in FIG.

9 is a vertical cross-sectional view of a reflector showing another modification of the reflector shown in FIG. 6 and the like.

FIG. 10 is a vertical cross-sectional view of a reflector showing another modification of the reflector shown in FIG.

FIG. 11 is a vertical cross-sectional view of a reflector showing another modification of the reflector shown in FIG.

FIG. 12 is a vertical cross-sectional view of a reflector showing another modification of the reflector shown in FIG. 6 and the like.

FIG. 13 is a vertical sectional view of an embodiment of the eighth invention of the present application.

FIG. 14 is a schematic vertical sectional view of an embodiment of the seventh invention of the present application.

FIG. 15 is an exploded perspective view of an example of a conventional lighting device.

16 is a vertical sectional view of the conventional lighting device shown in FIG. 15 in an assembled state.

[Explanation of symbols]

11, 11a, 11b, 11c, 11d Variable light color type lighting device 12 Illuminator 13 Lamp row 13L L lamp 13D D lamp 13Lo, 13Lp, 13Do lamps at both ends 14 Fixture body 15, 15a, 15b Sed 16L Lighting circuit for L color 16D D color lighting circuit 17 Switching circuit 18, 18a Reflector 19 Socket 20 Opening 21 Wiring 22 Small hole 23 Concealed hole 23b Cut-and-raised piece 24 Ceiling 25 Hooking ceiling 26a, 26b Fixture 27 Operation window

Front page continuation (72) Inventor Mamoru Tominaga 1-28-3, Mita, Minato-ku, Tokyo Toshiba Lighting & Technology Corporation

Claims (8)

[Claims] 1. A plurality of light sources for respectively emitting a plurality of types of white light having different color temperatures, and a light-transmitting cover that closes the light emission opening end of the instrument body. Lighting devices in which the light sources are arranged in a row so that the emission colors are alternately different and built-in, and the plurality of light sources are simultaneously or switchable between the plurality of types of light colors and can be dimmed freely. And a lighting device that lights up. 2. The light sources are arranged in rows on the same plane, and only those at both ends of the arrangement are shifted so as to be closer to the inner surface of the canopy of the luminaire main body than the same plane. The variable light color illumination device according to claim 1. 3. The variable light color illuminating device according to claim 1, wherein the light sources located at both ends of the light source array have different light colors from each other. 4. The light source emits white light of two colors respectively, and the lighting device has a switching circuit for switching lighting of these light sources between the two colors so as to be dimmable. The variable light color type illuminating device according to claim 1. 5. The variable light color illuminating device according to claim 1, wherein the light source is a straight tube fluorescent lamp. 6. The variable light color illumination device according to claim 1, wherein the light sources have the same number of two types of light colors. 7. A plurality of light sources each emitting a plurality of types of white light having different color temperatures, and a light-transmitting cover that closes the light-emission opening end of the instrument body. A lighting device in which the light sources are arranged so as to alternately emit light of different colors, and each of the light sources is simultaneously or switchable between the plurality of types of light colors, and a lighting device that lights in a dimmable manner. A variable light color illuminating device, comprising: a light reflector that reflects the light from the light source toward the light-transmitting cover and that has the lighting device attached thereto. 8. The luminaire main body is equipped with a mounting tool to be mounted on the mounting body from the inside thereof, and the reflecting plate is formed with an opening at a position corresponding to the mounting position of the mounting tool. The variable color illumination device according to claim 7.