JP2000133003A - Color illumination unit and lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arbitrarily choose between general illumination and color illumination by installing a color illumination unit on the front surface of a wiring board with, an RGB light emitting element group which comprises multiple red, green and blue light emitting elements and to which different luminescent colors are mixed, and by providing an insulation holder having a unit mounting means on the back surface of the wiring board. SOLUTION: An insulation holder 2 is provided with unit mounting means 2b, spacers 2c and the like, and the pair of unit mounting means 2b are formed by extending them upward from two opposite sides of the insulation holder 2. When locking claws 2b2 of the unit mounting means 2b are pressed in insertion holes 11b1 previously formed in a reflecting plate 11b, a color illumination unit is mounted to a lighting system by elastically deforming leg pieces 2b1 to lock the locking claws 2b2 to the back faces of the insertion holes 11b1. In this case, because different luminescent colors are mixed well in the arrangement of an RGB light emitting element group, a good additive color mixture action can be provided on the surface of a light diffusion cover or when projected on a light diffusing-reflecting surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color lighting unit suitable for color lighting and a lighting apparatus using the same.

[0002]

2. Description of the Related Art Various color lights can be obtained by additively mixing color lights. On the stage and in studios, beautiful colored light can be obtained by additive color mixing in the background light, or projected by monochromatic lighting.
Furthermore, the light color is continuously changed over time.

It has been known for a long time to produce various color lights by additive color mixture of red light, green light and blue light.

[0004] Recently, emphasis has been placed on the use of color lighting to ease human feelings and stabilize the mind. In addition, there is an increasing demand to change the atmosphere of a space such as a room by using color lighting or to simply enjoy colored light.

[0005] In order to meet such a demand, a relatively small-sized color lighting device for a small number of persons, such as individuals and families, has appeared. This device has a configuration in which red, green and blue dichroic filters are attached to the front of three halogen lamps with a rating of 150 W with a mirror, and light is projected and illuminated on a wall or a ceiling to perform additive color mixing. If an attempt is made to produce white by additive color mixing, the power consumption will be a maximum of 450 W, and heat generation cannot be ignored, and since the light distribution will be geometrically shifted, it is not always possible to produce perfect white light. Without mounting, separately equipped with a 150W mirror halogen bulb that emits white light,
The rated power consumption is 600 W in total. (Prior art 1) Color light can be easily obtained by combining an incandescent light bulb with a color filter. Therefore, various proposals have been made in addition to the above.

For example, Japanese Patent Application Laid-Open No. 48-10892 discloses that a light source that emits a plurality of types of color light is surrounded by a shield, and a light diffusing cylindrical color mixture is disposed above the shield. A proposed structure has been proposed. (Prior Art 2) JP-A-61-158608 proposes a structure in which light sources of three primary colors are housed in a glove, and the light sources are individually adjusted. (Prior art 3)

In the prior art 1, since additive color mixing is performed by projection with three halogen lamps with a reflecting mirror, it is impossible to perform color illumination with sufficient color mixing in a relatively small space. . In addition, since additive color mixing is performed by floodlighting, in order to perform illumination with sufficient expanse, a high ceiling, a large area without features, and a white wall are required.

[0007] The prior arts 2 and 3 are both dedicated lighting devices for color lighting. For general lighting in a room, it is necessary to separately provide a lighting device for general lighting.
There is a problem with the grounding location and cost.

The present invention provides a color lighting unit which can be easily attached to a lighting device and has a good color lighting effect by mixing colors, and has a general lighting function and a color lighting function by incorporating the same. It is an object of the present invention to provide a lighting device which can arbitrarily select any of general lighting and color lighting, has little interference between general lighting and color lighting, and exhibits good performance in any lighting. .

[0009]

A color lighting unit according to the first aspect of the present invention includes a wiring board and a plurality of red light-emitting elements, green light-emitting elements, and blue light-emitting elements. And a group of RGB light emitting elements provided on the front surface of the substrate; and an insulating holder having a unit mounting means and attached to the back surface of the wiring board.

In the present invention and each of the following inventions, definitions and technical meanings of terms are as follows unless otherwise specified.

(Regarding Wiring Board) The wiring board functions to mechanically support the respective color light emitting elements while electrically connecting them as required, and to further mechanically support the color lighting unit in the lighting device.

[0012] In addition, in order to dispose RGB light emitting element groups, which will be described later, such that different emission colors are mixed, the wiring board is provided.
The wiring is taken into account.

Further, it is preferable that the wiring substrate is formed as a single body, but it may be divided into a plurality of parts if necessary.

Further, when the wiring board is disposed so as to be exposed in the lighting device, it can be formed on the reflection surface by whitening the surface.

(Regarding RGB Light Emitting Element Group) The RGB light emitting element group includes a red light emitting element, a green light emitting element, and a blue light emitting element. They are arranged on the board in a mixed manner.

The RGB light emitting element group may include light emitting elements of different light colors, such as white light emitting elements and intermediate color light emitting elements, in addition to the above-described light emitting elements of each color.

As the light emitting elements constituting the RGB light emitting element group, incandescent lamps, light emitting diodes, glow discharge lamps and the like can be used alone or in combination.

When an incandescent light bulb is used as the light emitting element, it is preferable to use as many small light bulbs as possible in order to increase the definition of color mixing.

[0019] The small-capacity miniature bulb does not use a cap made of metal or synthetic resin, so that there is no light loss due to the cap, and a life of 10 times is achieved by enclosing xenon.
Since it is possible to obtain a color lighting unit having a life of 000 to 30,000 hours, a long-life color lighting unit can be obtained.
There are single base type and double base type for small base lamps.
The present invention may be any of them.

The single base type is advantageous in terms of simplification of the support structure for the baseless bulb and saving wiring space. The so-called wedge-based bulbs, in which one side of the base is pinched to form locking lateral grooves, are widely used in instrument panels of automobiles and are sufficiently reliable and easy to attach and detach. Since a socket is used, this can also be used.

On the other hand, the double base type is advantageous for making the color lighting unit thinner.

By the way, in order to form an RGB light emitting element group using an incandescent light bulb, a color filter is combined to obtain each light color. The color filter is
It can be formed by applying a color filter film to a glass bulb of an incandescent lamp. In addition, a color filter made of colored transparent silicone to which a pigment is added is directly attached to the glass bulb and mounted, or a gap is formed between the glass bulb and the glass bulb through an appropriate holding means to surround the glass bulb. Can be.

Next, when an incandescent light bulb is used as the light emitting element, the power consumption of the blue light emitting element is two to three times that of the red light emitting element and the green light emitting element, particularly because blue light is insufficient for the following reasons. It is good to That is, in an incandescent light bulb, the radiant energy of the blue light component is essentially small, and the spectral luminous efficiency of a person peaks at green,
The luminous efficiency for the wavelengths before and after that sharply decreases, and the luminous efficiency for blue light is relatively lower than that for green light and red light.

In order to increase the power consumption of the blue light emitting element to two to three times that of the red light emitting element and the green light emitting element, the number of the blue light emitting elements is increased two to three times or the rated power consumption is reduced. The same number may be used two to three times. Of course, the above compromises can be made.

Thus, the required amount of light can be easily obtained by using the small base bulb. Also,
An incandescent light bulb emits light in a continuous spectrum and has good color rendering properties, so that an excellent light color can be obtained in combination with a color filter.

Further, the respective color light emitting elements of the RGB light emitting element group may be mounted on the wiring board via a lamp socket or directly on the wiring board. In the latter case, the lead wire of the light emitting element may be simply connected by soldering to the wiring board with printed wiring, or the light emitting element may be supported on the wiring board via a holder arranged on the wiring board and the lead wire may be required. May be connected.

The RGB light emitting element groups may be arranged such that different light emitting colors are mixed, such that adjacent light emitting colors are arranged in a ring shape, or a red light emitting element, a green light emitting element and a blue light emitting element are arranged in a triangle. To form one unit, and a plurality of these units can be spread over the surface.

When the light-emitting elements of each color are arranged in a ring, either one row or a plurality of rows may be used. In the case of a plurality of columns, the number of light emitting elements included in each column may be equal or different. Further, the light emitting elements in the column can be arranged such that different light emitting colors are adjacent to each other. Further, when the blue light emitting elements in one row and the red light emitting elements and the green light emitting elements arranged in the other rows are located at the vertices of a triangle and constitute one unit, the light emission of one row All elements may be blue. Furthermore, when the number of blue light-emitting elements is twice that of the red light-emitting element or the green light-emitting element, the blue light-emitting elements should be arranged in a line so that the blue light-emitting elements are adjacent to both sides of the red light-emitting element and the green light-emitting element. Can be. In addition, there are various specific modes for coexisting the respective color light emitting elements according to the shape of the wiring board and the like.

(Regarding Insulating Holder) The insulating holder is attached to the back surface of the wiring board to insulate and protect the wiring board, and is used for attaching the color lighting unit to a lighting device or the like. for that reason,
The insulating holder has a unit mounting means.

As the unit attaching means, various known attaching means can be appropriately adopted. For example, it is constituted by locking means integrally formed with the insulating holder, fixing means such as screws and the like.

(Other Configurations) Appropriate electric connection means can be used to connect the RGB light emitting element groups to a power supply so as to be individually controllable for each color light emitting element.

Further, the present invention allows a light control means, a switch, and the like to be interposed between each color light emitting element and a power supply.

When the light control means is interposed, the light control means may be integrated with the color lighting unit, or may be separately provided. Further, the light control means may be integrated with the lighting device or the like, or may be separately provided and separately provided at a position separated from each other.

(Regarding the Operation of the Present Invention) Since the present invention has the above configuration, the wiring board on which the RGB light emitting element group is disposed is insulated and protected by the insulating holder attached to the back surface thereof.

Further, since the insulating holder is provided with the unit mounting means, the unit can be easily mounted on a lighting device or the like, and the unit mounting means can be easily formed on the color lighting unit.

Also, since each color light emitting element is provided in plural and arranged so that different light emitting colors are mixed, each color light emitting element is miniaturized, so that the color lighting unit can be made compact and used for general lighting. It is easy to arrange the ring-shaped fluorescent lamp in the low illuminance space at the center. Accordingly, color illumination can be effectively performed with as few light emitting elements as possible. The low illuminance space will be described later. However, the color lighting unit of the present invention can be incorporated in a lighting device for general lighting or a lighting device for color lighting, which does not include a ring-shaped fluorescent lamp but uses another light source. It is clear that the main effects are exhibited among the respective effects described above.

The color lighting unit according to the second aspect of the present invention
2. The color lighting unit according to claim 1, wherein the insulating holder includes a spacer for the lighting device.

The spacer functions to float and attach the color lighting unit to a lighting device or the like. When the color lighting unit is floated and mounted, the color lighting unit can be mounted on the non-flat portion of the lighting device side, and the heat radiation of the color lighting unit can be facilitated and the temperature rise can be reduced.

The spacer may be formed integrally with the unit mounting means, or may be formed separately.

Further, when the color illumination unit is provided at the center of the ring-shaped fluorescent lamp, the length of the spacer may be appropriately set so as to enter the low illuminance space.

The color lighting unit according to the third aspect of the present invention
The color lighting unit according to claim 1 or 2,
The insulating holder is characterized in that the unit mounting means has a detachable structure.

In the present invention, the "removable structure"
The meaning includes a configuration in which the entire color lighting unit is detachably attached to the lighting device or the like, one side is detachable, and the other side is pivotally attached to the lighting device or the like by a hinge.

By making the unit mounting means of the color lighting unit detachable, the function of the lighting device having the annular fluorescent lamp can be prevented. For example, in order to replace the ring-shaped fluorescent lamp, by using a holder that holds two opposite diametrical positions of the ring-shaped fluorescent lamp, the ring-shaped fluorescent lamp can be attached to and detached from the base with one touch. At this time, by removing the color lighting unit or displacing it by rotation, there is no hindrance to replacement of the annular fluorescent lamp. In this case, if one side of the color lighting unit is configured to be detachable from the lighting device or the like by a detachable structure and the other side is turned by a hinge, the color lighting unit is obstructed during lamp replacement work. And the work of attaching and detaching the color lighting unit becomes easier.

However, if it is possible to replace the entire color lighting unit, it is necessary to make the entire color lighting unit a detachable structure that can be completely separated. In this case, the electrical connection to the color lighting unit may be made using a detachable connector.

The color lighting unit according to the fourth aspect of the present invention
The color lighting unit according to any one of claims 1 to 3, wherein at least a part of each color light emitting element is configured to be connected in series to a power supply via a light control means. And

In the present invention, any color light emitting element may be used.

As described above, by using a large number of small light-emitting elements, it is possible to increase the definition of mixed colors. However, in general, a small light-emitting element has a low rated voltage,
Often lower than the power supply voltage. In such a case, a step-down device may be interposed between the power supply and the light emitting element, but the size of the device is increased and the cost is increased.

On the other hand, in the present invention, since a plurality of light emitting elements are connected in series to the power supply, the power supply voltage can be directly applied without using a step-down device by adjusting the number of light emitting elements. Can be turned on.

When the light-emitting element is a small base bulb, the rated voltage is generally 30 V or less, which is suitable for the present invention. Then, a plurality of small base lamps are connected in series, and the total value of their rated voltages may be equal to or slightly higher than the power supply voltage. For example, a nominally rated 100V commercial AC power supply is directly connected by connecting four series of four small base bulbs having a rated voltage of 25 to 28V or eight series of four small base bulbs having a rated voltage of 12.5 to 14V. It can be satisfactorily lit. Also,
The same idea can be applied to a nominally rated 120 V commercial AC power supply by connecting 5 to 10 lamps in series.

Further, the dimming means is used for adjusting the light emission level of the RGB light emitting element group to perform color illumination of a desired chromaticity and brightness, so that light can be individually adjusted for each color light emitting element. desirable. In the present invention, there is no limitation on the position of the light control means. That is, the color lighting unit may be provided with a light control means or may be separately provided.

The color lighting unit according to the fifth aspect of the present invention
The color lighting unit according to any one of claims 1 to 4, wherein each color light emitting element is detachably mounted on the wiring board via a lamp socket arranged on the wiring board.

The lamp socket supplies power to each color light emitting element of an RGB light emitting element group described later, and mechanically supports each color light emitting element if necessary. Therefore, what is necessary is just to use a lamp socket suitable for the base type of each color light emitting element to be used.

A plurality of lamp sockets are mounted on a wiring board. This is convenient for arranging the respective color light emitting element groups intensively at the center of the annular fluorescent lamp. However, even in a lighting device dedicated to color lighting and the like, by using a plurality of light emitting elements for each color and arranging light emitting elements of different colors in a mixed manner, it is possible to increase the definition of mixed colors. It is convenient to dispose it relatively close to the peripheral portion.

Further, if necessary, a lamp socket for a general illumination lamp can be provided on the wiring board in addition to the lamp socket for the RGB light emitting element group. In this case,
It is convenient if the wiring substrate is formed in a disk shape.

Thus, according to the present invention, each color light emitting element can be easily mounted on the wiring board, and when a failure occurs, only the light emitting element can be easily replaced with a normal one.

The color lighting unit of the invention according to claim 6 is
The color lighting unit according to any one of claims 1 to 5, wherein a light control means capable of controlling light for each light emitting element is provided on a back surface of the insulating holder.

In the present invention, since the dimming means is provided, wiring can be easily routed when the color lighting unit is incorporated in the lighting device. For this reason, when installing the color lighting unit in the lighting device for general lighting, a small change can be made, and the mounting becomes easy.

Further, since a space can be easily secured on the rear side by providing a spacer on the insulating holder, it is easy to dispose the dimming means on the rear surface of the insulating holder, thereby facilitating maintenance.

According to a seventh aspect of the present invention, there is provided a lighting device, comprising: a base; a ring-shaped fluorescent lamp provided on the base such that a low-illuminance space is formed in the center; and a front surface of the base covering the ring-shaped fluorescent lamp. A dome-shaped light-diffusing cover made of an opalescent translucent material; and a substrate, each including a plurality of red light-emitting elements, green light-emitting elements, and blue light-emitting elements. RGB light emitting element group, and electric wiring means configured to connect the RGB light emitting element group to a power supply so as to be individually controllable for each color light emitting element, and each light emitting color is added on the light diffusion cover surface. And a color lighting unit disposed on the base in a low illuminance space formed at the center of the ring-shaped fluorescent lamp so as to cause color mixing.

The present invention is an illumination device capable of performing both general illumination using a ring-shaped fluorescent lamp and color illumination using a color illumination unit.

(Base) In the present invention, the base has a reflection function, a function of supporting the light diffusion cover, and a function of attaching the lighting device to a ceiling surface or the like.

The reflection function can be exerted by applying a white paint to the surface of the substrate facing the annular fluorescent lamp and the color lighting unit. But,
By providing a separately provided reflecting plate, it can be configured to exhibit a reflecting function.

As the light diffusion cover support function, various known support mechanisms can be adopted.

The mounting function of the lighting device can employ various mounting mechanisms that are also known. For example, it is possible to adopt a configuration in which power supply connection and mechanical support are simultaneously performed using a hooking sealing body installed on a ceiling.

The shape of the substrate may be appropriately set according to the design and use of the lighting device, and may be, for example, a square, a circle, an oval, or a figure.

(Regarding Ring Lamp) The ring fluorescent lamp may be of any type. For example, one or more lamps of the FCL series (FCL30, FCL32, FCL40, etc.) may be used concentrically.
However, in the present invention, particularly effective are the FHC series (FHC20, FHC27, FHC34, etc.).
Is used by concentrically arranging one or more lamps. The latter ring-shaped fluorescent lamp has a tube diameter of 16.5 mm,
Since the former is 29 mm, which is extremely thin, it is easy to arrange a color lighting unit.

In the present invention, the "low illuminance space" is a space in which the surface of the base opposing the central portion in the ring of the ring-shaped fluorescent lamp is dark and a space in which the surface protrudes forward from this region in a shallow conical shape. . The inventor has found that the low illuminance space defined in this way has a small amount of light flux emitted from the ring-shaped fluorescent lamp and effectively contributing to illumination.

Therefore, even if there is a three-dimensional object that can enter the low illuminance space, the three-dimensional portion has little effect on illumination by the annular fluorescent lamp.

It has been found that this low illuminance space becomes larger as the annular fluorescent lamp is arranged closer to the substrate surface. In the lighting device using the above-described FHC series ring-shaped fluorescent lamp, in order to emphasize the characteristics of the thin tube, the ring-shaped fluorescent lamp is arranged very close to the base in the relation of directing the thin-shaped lighting device. I have. For this reason,
In many cases, a large low illuminance space is formed. But F
Also in the ring fluorescent lamp of the CL series, a large low illuminance space is generated by arranging it close to the base.
In the present invention, a large low illuminance space is not necessarily required, and a color illumination unit may be provided in the low illuminance space. In other words, a low illuminance space having a size corresponding to the size of the color lighting unit is sufficient.

(Regarding Light Diffusion Cover) The light diffusion cover cooperates with the base to house the annular fluorescent lamp and the color lighting unit therebetween. Therefore, the light emitted from these lamps basically passes through the light diffusion cover and illuminates the illuminated space or the illuminated surface.

Since the light diffusion cover is made of a milky translucent material, light transmitted through the light diffusion cover is diffused when transmitted through the light diffusion cover. When different color lights are present at the same time, they are additively mixed by the light diffusion cover. The “milky translucent material” does not limit the material, but merely defines the optical characteristics of the material. That is, it is necessary that the material be light-diffusing and not be significantly colored. This is because if the color is markedly colored, the light is colored when passing through the light diffusion cover, and the color mixture by each color light emitting element is hindered. On the contrary, coloring that does not substantially impede the color illumination is allowed.

Further, the material of the light diffusion cover is not limited as described above, but, for example, a synthetic resin or glass can be used.

In the present invention, the expression that the light-diffusing cover is “dome-shaped” is not limited to a strict meaning, but includes a slightly swelled one and a spherical or cylindrical shape. Also includes those that have swelled sufficiently.

The shape of the light diffusion cover may be adapted to the shape of the base or may be different from the base.

(Regarding the Color Illumination Unit) 1. About the Substrate The substrate has a plate shape and functions to mechanically support each color light emitting element and to mechanically support the color illumination unit with respect to the illumination device. The substrate can also function to support the electric wiring means for each color light emitting element.

In order to support the electric wiring on the substrate, the substrate can be constituted by a wiring substrate.

Further, the substrate may be constituted not only by a single member but also by a structure in which a plurality of members are stacked or divided into a plurality of members. For example, the substrate can be constituted by a wiring substrate and an insulating holder attached to the back surface thereof as defined in claims 1 to 6.

Further, when the surface of the substrate is exposed and incorporated into the lighting device, the surface of the substrate may be coated with a white color to increase the light reflectance. 2 Regarding RGB Light Emitting Element Group The above description in claim 1 is cited for the RGB light emitting element group. 3. Electric Wiring Means The electric wiring means is a means for connecting the RGB light emitting element group to a power supply so as to be individually controllable for each color light emitting element.
A connection is made between each color light emitting element and a power supply. However, it is naturally permissible that light control means, switches, and the like are interposed between each color light emitting element and the power supply for the purpose of control.

Further, the electric wiring means can be integrated with the substrate by constituting the electric wiring means with a wiring substrate. However, the electric wiring means can be constituted by using a lead wire with an insulating coating.

Further, when the light control means is interposed, the light control means may be integrated with the color lighting unit, or may be separately provided. Further, the light control means may be integrated with the lighting device, or may be separately provided and separately provided at positions separated from each other. 4 Regarding the entire color lighting unit, the color lighting unit is disposed on the base such that "each emission color allows additive color mixture on the light diffusion cover surface" to the extent that additive color mixture is obtained on the light diffusion surface. It means a state where it is separated from the light diffusion cover. If the color lighting unit is too close to the light diffusion cover, the desired additive color mixture will not be obtained.

The color lighting unit is disposed on the base in a low illuminance space formed in the center of the ring-shaped fluorescent lamp by the unit mounting means.

(Operation of the Present Invention) Since the present invention has the above-described configuration, it has the following operations.

(1) It has the functions of general illumination and color illumination.

By lighting the ring-shaped fluorescent lamp, general illumination can be performed. Similarly, by operating the color lighting unit, color lighting can be performed. In color lighting, red light emission, green light emission, and blue light emission can be individually selected and performed,
By lighting any number of colors of light emitting elements simultaneously,
Further, by appropriately controlling the lighting level at that time, it is possible to produce various colored lights by additive color mixture.

(2) The color lighting unit hardly interferes with the general lighting function.

When the color lighting unit is provided at the center of the annular fluorescent lamp, if the color lighting unit is provided at a position other than the low illuminance space, the color lighting unit interferes with the general lighting function. For this reason, the central portion of the light diffusion cover is darkened, and the light of the ring-shaped fluorescent lamp that has passed through the RGB light emitting element group is colored, and the light diffusion cover is partially unevenly colored.

On the other hand, in the present invention, since the color lighting unit is disposed in the low illuminance space formed when the annular fluorescent lamp is turned on, interference hardly occurs. This is because, as described above, in the low illuminance space, there is little passage of light flux emitted from the ring-shaped fluorescent lamp and effectively contributing to illumination.

If the color illumination unit is disposed behind the ring-shaped fluorescent lamp, some shadows due to the ring-shaped fluorescent lamp are likely to occur during color illumination. However, it is acceptable because it does not significantly reduce the color lighting effect.

On the other hand, if it is desired that the shadow of the tube-type fluorescent lamp hardly occurs, it is preferable to dispose the color lighting unit in a low illuminance space and at a position slightly forward of the ring-shaped fluorescent lamp.

(3) Color illumination can be effectively performed with low power consumption.

In the case of the diffuse transmission type color illumination, unlike the general illumination of the same type, it is often enjoyed to look directly at the color light emitting portion. That is, the user enjoys the color illumination mainly by looking at the portion of the light diffusion cover which is shining by the color light.

On the other hand, according to the present invention, since the color lighting units are arranged in the low illuminance space formed in the center of the ring-shaped fluorescent lamp, the color lighting units are made as compact as possible. By reducing the number of light-emitting elements or using a small, low-power-consumption light-emitting element, it is located at the center of the light-diffusing cover, even if the power consumption of the color lighting unit is small. Even if the brightness gradually decreases toward the periphery, an effective color lighting effect can be obtained with a fairly uniform brightness distribution.

(4) Color illumination can be achieved by being attached to an annular fluorescent lamp fixture for general illumination.

In many ring-shaped fluorescent lamps for general lighting, a low-illuminance space is formed at the center of the base. In the present invention, by arranging a color lighting unit of a suitable size using the low illuminance space of this space, a lighting fixture having a color lighting function can be easily obtained. It should be noted that the present invention is not limited to a ring-shaped fluorescent lighting device for general lighting, but also to a lighting device specially designed for optimal general lighting and color lighting. Such a lighting device is also included.

According to an eighth aspect of the present invention, in the lighting device of the seventh aspect, dimming means capable of dimming each color light emitting element of the color illumination unit provided on the base; a ring-shaped fluorescent lamp and a color illumination unit And a changeover switch for selecting at least one of the following; and an operation tool of the assembled light control means and an operation tool of the changeover switch.

The light control means may be provided on the color lighting unit or on the base of the lighting device. Moreover, you may comprise separately at the position separated from the lighting device.

As the operation tool of the light control means, a variable resistor is generally used, but the invention is not limited to this.

The changeover switch may have any configuration, but when a pull switch is used, the operating tool is a drawstring. Note that the drawstring may be a chain.

Further, that the changeover switch “selects one of the ring-shaped fluorescent lamp and the color lighting unit” means that only one of them can be turned on and the simultaneous lighting of both is disabled.

Further, the fact that the operation tool of the light control means and the operation tool of the changeover switch are assembled means that these operation tools are integrated in one place. For example, when the operation tool of the light control means is a variable resistor and the changeover switch is a pull switch, when the pull string of the pull switch and the variable resistor are integrated, and the portion of the variable resistor is pulled, , The pull switch is operated. Further, the switch may be a wall switch, and a variable resistor of the light control means may be disposed adjacent to the wall switch.

Thus, in the present invention, by turning on only one of the ring-shaped fluorescent lamp and the color lighting unit, it is possible to prevent the temperature of the lighting device from rising excessively.

On the other hand, when the ring-shaped fluorescent lamp and the color lighting unit are simultaneously energized or turned on, the amount of heat generated increases, the temperature of the lighting device rises sharply, and the temperature limit is easily exceeded. Also, the lighting effect becomes incomplete.

Also, the operation of the dimming means and the operation of the changeover switch are facilitated by collecting them.

According to a ninth aspect of the present invention, in the illuminating apparatus according to the seventh or eighth aspect, the changeover switch is capable of switching between all-lighting, tuning lighting, color lighting, and extinguishing of the annular fluorescent lamp. It is characterized by being constituted.

In a lighting device that performs general illumination using a ring-shaped fluorescent lamp, a four-stage changeover switch is used so that the changeover switch can be sequentially switched from an unlit position to all-light lighting, dimming lighting and baby ball lighting. I have. In fact, baby ball lighting is actually used as a so-called nightlight.

On the other hand, in the present invention, color lighting is switched instead of baby ball lighting. In the case of color illumination, the brightness can be reduced to an arbitrary degree by the dimming means, so that it can be used as a nightlight. In addition, a nightlight of desired color light can be obtained according to the mood at that time, and a baby ball is not required.

Accordingly, a four-stage switch similar to the conventional one can be used as the switch.

The lighting device according to the tenth aspect of the present invention provides the lighting device according to the seventh aspect.
In the lighting device according to any one of the first to ninth aspects, the color lighting unit is the color lighting unit according to any one of the first to sixth aspects.

Therefore, in the present invention, since the color illumination unit has the structure of the first to sixth aspects, it has a specific function.

[0110]

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

FIG. 1 is a partially cutaway front view showing a first embodiment of the color lighting unit of the present invention.

FIG. 2 is also a side view.

FIG. 3 is also a bottom view.

FIG. 4 is an enlarged partial sectional front view showing the light emitting element and the lamp socket.

FIG. 5 is an enlarged partial cross-sectional side view.

FIG. 6 is an enlarged front view showing a small base bulb similarly.

FIG. 7 is an enlarged side view of the same.

FIG. 8 is an enlarged front view showing the same lamp socket. FIG. 9 is an enlarged side view of the same lamp socket.

In each figure, 1 is a wiring board, 2 is an insulating holder, 3 is a group of RGB light emitting elements, and 4 is a lamp socket.

The wiring board 1 has a deformed octagon in which four corners of a square are cut obliquely, forms printed wiring (not shown) on the back surface, and has a large number of lamp socket insertion holes wired as required by the printed wiring. Are formed. The lamp socket insertion hole includes a positioning hole and a terminal insertion hole (both are not shown).

As the printed wiring on the back surface of the wiring substrate 1, printed wiring lands are formed around the terminal insertion holes 1a as the input terminals for the respective color light emitting elements R, G, B and the wiring to the respective color light emitting elements connected thereto. ing. The form of the wiring will be described later.

The insulating holder 2 has a concave portion 2a, a unit attaching means 2b, and a spacer 2c.

The recess 2a is formed on the lower surface of the insulating holder 2 and houses the wiring board 1 therein, and the wiring board 1 is fixed to the insulating holder 2 by screws B.

The unit attaching means 2b is an attaching means for attaching the color lighting unit to a lighting device or the like. A pair of the unit 2b extend upward from two opposing sides of the insulating holder 2. Then, the unit attaching means 2b includes the leg pieces 2b1,
It consists of a locking claw 2b2 and a stopper rib 2b3.

The leg piece 2b1 also serves as a spacer in cooperation with the stopper rib 2b3.

The locking claw 2b2 is formed at the tip of the leg piece 2b1, and has a tapered portion 2b21 at the tip and a locking step 2b22 adjacent to the tapered portion 2b21.

The stopper rib 2b3 is opposed to the locking claw 2b2 in the insertion direction with a thickness corresponding to the thickness of the reflector 11b of the lighting device, and is provided on both sides thereof.

Then, when the locking claw of the unit mounting means 2b is pressed into the insertion hole 11b1 previously formed in the reflector 11b of the lighting device, the leg 2b1 is elastically deformed and the locking claw 2 is formed.
The color lighting unit is attached to the lighting device by locking b2 to the back surface of the insertion hole 11b1. At that time, the stopper rib 2b3 comes into contact with the lower surface of the base 4,
Excessive upward movement of the locking claw 2b2 is prevented.

The spacer 2c extends upward from the back surface of the insulating holder 2, and when the insulating holder 2 is about to move excessively upward, it comes into contact with the lower surface of the base 4 to prevent the movement.

Each of the RGB light emitting element groups 3 includes eight red light emitting elements R, green light emitting elements G, and 16 blue light emitting elements B, and is arranged in a ring of three rows as shown in FIG. .

In the outer row, eight blue light-emitting elements B are annularly arranged at 45 ° intervals.

In the middle row, red light emitting elements R and green light emitting elements G are alternately arranged in a ring at an interval of 22.5 °.

In the inner row, eight blue light emitting elements B are annularly arranged at 45 ° intervals.

The above three rows of annular light emitting elements are shifted from the central point by 11.25 ° with respect to the radial direction, so that the overlap of light emission is minimized.

The blue light emitting element in the outer row, the red light emitting element R in the middle row, and the adjacent green light emitting element G
B form a triangular arrangement.

Similarly, the triangular arrangement of RGB is formed by the blue light emitting elements B in the inner row, the green light emitting elements G and the connected red light emitting elements R in different combinations in the middle row.

Therefore, in the arrangement of the RGB light emitting element groups described above, since different emission colors are mixed well,
A good additive color mixing effect can be obtained when projected on the surface of the light diffusion cover or on the light diffusion reflection surface.

Each color light emitting element R (or G, B) is shown in FIG.
As shown in FIG. 5, it is composed of a small base lamp 3a, a filter holder 3b and a color filter 3c. Reference numeral 4 denotes a lamp socket.

As shown in FIGS. 6 and 7, the small-capacity small bulb 3a includes a glass bulb 3a1 and an external lead wire 3a.
2, consisting of an internal lead wire 3a3, a glass bead 3a4, a tungsten filament 3a5, and an anchor wire 3a6.

The glass bulb 3a1 is of a single sealing type having a wedge-based pinch seal portion 3a11.

A pair of the external lead wires 3a2 is airtightly penetrated through the pinch seal portion 3a11 of the glass bulb 3a1, and is led out to the outside.
a11 are attached in a diagonal relationship to both surfaces. Note that a pair of locking lateral grooves g are formed on both surfaces of the pinch seal portion 3a11.

A pair of the inner lead wires 3a3 is connected to the outer lead wire 3a2, and is introduced into the glass bulb 2a1 from the pinch seal portion 3a11.

The glass bead 3a4 is connected to the internal lead wire 3a.
3 is fixed in a predetermined positional relationship, and the base end of the anchor wire 3a6 is fixed.

The tungsten filament 3a5 is made of C-
It is a 2V type, and both ends are connected to the tip of the internal lead wire 3a3.

[0145] The tip of the anchor wire 3a6 is lifted in the middle of the tungsten wire 3a5.

The filter holder 3b is used to form a gap between the glass bulb 3a1 and the color filter 3c when disposing the color filter 3c around the light emitting portion of the small base bulb 3a. That is,
The filter holder 3b is made of synthetic resin,
It has a ring portion 3b1 and a support leg 3b2.

The ring portion 3b1 is locked on the outer periphery of the lamp socket 4 by the soft elasticity of the constituent material. A positioning step 3b11 for the color filter 3c is formed at the lower end of the outer periphery of the ring 3b1.

The four support legs 3b2 are protruded from the upper end of the ring portion 3b1 at intervals of 90 degrees around the small base bulb 3a. An insertion guide portion 3b21 for the color filter 3c is formed at the tip of the support leg 3b2, and a stopper step portion 3b22 for the lamp socket 4 is formed inside the lower end.

The color filter 3c is formed by molding a transparent colored silicone resin into a cap.

As shown in FIGS. 8 and 9, the lamp socket 4 has a socket body 4a and a pair of contacts (not shown).

The socket body 4a is made of an insulating flat 2
Split type, insertion opening on the front and position regulating projection 4 on the back
a1 and a collar 4a2, respectively,
3 and are integrated.

The pair of contacts are held in the socket body 4a, and the terminals 4b of the contacts protrude from the back surface.

Then, the light emitting elements R, G,
To mount B, the lamp socket 4 is first mounted.
For this purpose, the position regulating projections 4a1 of the lamp socket 4 are inserted into the positioning holes formed in the substrate, the terminals 4b are inserted into the terminal insertion holes, and the printed wiring lands on the rear surface are soldered to the terminals. , Lamp socket 4
To the input terminal as required.

Next, the small base bulb 3a is mounted on the lamp socket 4. For that purpose, when the pinch seal portion 3a11 of the small base lamp 3a is inserted into the insertion opening of the lamp socket 4, the external lead wire 3a2 is pressed against the contact housed in the socket body 4a, and the locking member is used. The lateral groove g is locked by the contact, and the mounting of the small base bulb 3a on the lamp socket 3 is completed.

After the small-capacity small bulb 3a is mounted on the lamp socket 4, the filter holder 3b is mounted on the lamp socket 4. For this purpose, the ring part 3b1 of the filter holder 3b is pressed into the lamp socket 4.
Then, the positioning step 3b11 is locked on the upper end of the socket body 4a, and the mounting of the filter holder 3b on the lamp socket 4 is completed. The filter holder 3b does not undesirably drop from the lamp socket 4 even if some vibration is applied due to the soft elasticity of the ring portion 3b1.

Finally, the color filter 3c is mounted on the filter holder 3b. For this purpose, the open ends of the color filter 3c are inserted so that the four support legs 3b2 of the filter holder 3b enter the inside of the color filter 3c. When the opening end of the color filter 3c comes into contact with the stopper step 3b22 of the ring portion 3b1,
The attachment of the color filter 3c to the filter holder 3c is completed. The color filter 3c has a ring portion 3b1 of the filter holder 3b due to its soft elasticity.
It is surely supported.

In the color filter 3c, an appropriate gap is formed between the color filter 3c and the lamp socket 4 when the color filter 3c is mounted on the filter holder 3b. Deterioration of the color filter 3c due to the generated heat can be avoided.

FIG. 10 is a circuit diagram showing the connection of the RGB light emitting element groups in the first embodiment of the color lighting unit of the present invention.

Each of the color light emitting elements R, G, and B has eight lamps connected in series. The blue light emitting element B has a pair of eight lamps connected in series.

A terminal tR is an input terminal of the red light emitting element R, t
G is the input terminal of the green light emitting element G, tB is the blue light emitting element B
And tC is a common terminal for each color light emitting element R, G, B.

When the common terminal tC and the input terminal tR are connected to an AC power supply (both not shown) via the light-emitting device for the red light-emitting device, the red light-emitting device R is illuminated dimmably. can do.

Similarly, an AC power supply is connected between the common terminal tC and the input terminal tG and between the common terminal tC and the input terminal tB via respective light control means so that the light can be lit dimmably. Connecting.

FIG. 11 is a front view showing a second embodiment of the color lighting unit of the present invention.

FIG. 12 is a side view of the same.

In each figure, the same portions as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted.

This embodiment is different from the first embodiment in that the color lighting unit includes the light control means 5.

That is, three sets of light control means 5 for each color light emitting element R, G and B are mounted on the back surface of the insulating holder 2. In addition, 5a is a wiring board.

The light control means 5 is arranged in a space formed between the base of the lighting device and the insulating holder 2.

FIG. 13 is a conceptual diagram illustrating the principle of the lighting device of the present invention.

In the figure, 11b is a reflection plate, 12A, 1
2B is an annular fluorescent lamp, 13 is a light diffusion cover, 14 is a low illuminance space, and 15 is a color illumination unit.

In the arrangement of the reflecting plate 11b and the annular fluorescent lamps 12A and 12B as shown in the figure, a low illuminance space 14 indicated by cross hatching is formed. Looking at the surface area of the reflector 11b included in the low illuminance space 14, it looks dark. Further, in the low illuminance space 14, not only the surface of the reflector 11b but also a horizontal plane parallel to the reflector 11b looks dark in the inverted conical solid shown by cross hatching.

That is, the low illuminance space is caused by the fact that the amount of light flux emitted from the ring-shaped fluorescent lamps 12A and 12B and effectively illuminating the front of the reflector 11b is clearly smaller than other portions. .

Therefore, even if a three-dimensional object is arranged in the low illuminance space 14, general illumination by the annular fluorescent lamps 12A and 12B is little affected. In the present invention, the low illuminance space 1 formed in the center of the annular fluorescent lamps 12A and 12B is provided.
Since the color illumination unit 15 is disposed on the base so as to be located at 4, the color illumination unit 15 hardly interferes with general illumination by the annular fluorescent lamps 12A and 12B. On the contrary, the ring-shaped fluorescent lamp 12
When it is desired to prevent interference between the fluorescent lamps A and 12B, the color illumination unit 15 may be disposed in the low illuminance space 14 in front of the annular fluorescent lamps 12A and 12B.

FIG. 14 is a front view in central section showing a first embodiment of the lighting device of the present invention.

FIG. 15 is a bottom view of the light diffusion cover with the right half removed from the center.

This embodiment is a stand-type lighting device using the first embodiment of the color lighting unit of the present invention shown in FIGS. 1 to 10.

Therefore, in each figure, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof will be omitted.

In the figure, 11 is a substrate, 12A, 12B
Is a ring-shaped fluorescent lamp, 13 is a light diffusion cover, 15 is a color illumination unit, and 16 is a changeover switch.

(Regarding the Substrate 11) The substrate 11 includes a chassis 11a and a reflection plate 11b.

The chassis 11a is formed in a dish-like shape by pressing a metal plate. Also, the chassis 11
On the upper surface of a, an insect-repelling sponge ring 11a1 and a sponge body 11a2 for ceiling pressure welding are adhered.

The insect-repelling sponge ring 11a1 is disposed so as to surround the center of the chassis 11a.

The sponge bodies 11a2 for pressure welding on the ceiling are distributed around the chassis 11a.

On the lower surface of the base 11, a boat-shaped reflecting plate 11b is mounted with the reflecting surface facing down. And chassis 1
A cylindrical through-hole (not shown) is formed at the center of the reflection plate 1a and the reflection plate 11b. By pressing the adapter and passing the adapter, the claw deflected by the spring of the adapter is locked to the inner wall of the through hole, and the chassis is mounted on the ceiling. Thereafter, the power supply is drawn into the chassis 11a by connecting the cord connector extending from the adapter to the connector receiver of the chassis.

In the internal space of the reflector 11b, a high-frequency lighting device for energizing the ring-shaped fluorescent lamps 12A and 12B and a dimming means (both not shown) of the color lighting unit 14 are mounted on the chassis 11a. Stored.

(Regarding Ring-Type Fluorescent Lamps 12A and 12B) The ring-type fluorescent lamp 12B is an FHC27ED type fluorescent lamp dedicated to high frequency use and has a rated power consumption of 27W.

Further, the ring-shaped fluorescent lamp 12A is an FHC3
It is a 4ED type fluorescent lamp dedicated to high frequencies and has a rated power consumption of 34W.

These ring-shaped fluorescent lamps 12B and 12A
Is detachably attached to the base 11 with one touch via a lamp holder 12a mounted in the diameter direction.

(Regarding Light Diffusion Cover 13) The light diffusion cover 13 is made of milk-white acrylic resin, has a shallow dome shape, is mounted on the periphery of the chassis 11a by rotation, and has a reflecting plate 11b and a ring-shaped fluorescent lamp. 12A, 12
B and a color lighting unit 15 described later.

(Regarding Color Illumination Unit 15) The color illumination unit 15 is the color illumination unit shown in FIGS. 1 to 10, but comprises a wiring board 1 and an insulating holder 2 attached to the wiring board 1 to constitute a substrate 14a. I have.

The color lighting unit 15 is detachably attached to the center of the reflection plate 11b via unit attachment means 2a while being vertically separated from each other. The color lighting unit 15 includes ring-shaped fluorescent lamps 12A and 12B.
Is located slightly below the lower surface of.

Further, the color illumination unit 15 is to be detached from the reflector 11b before attaching and detaching the annular fluorescent lamps 12A and 12B. After the annular fluorescent lamps 12A and 12B are mounted, the color lighting unit 15 is mounted below the lamp holder 12a.

(Regarding the Changeover Switch 16) The changeover switch 16 is composed of a pull switch, and is fixed to the chassis 11a inside the reflection plate 11b. The drawstring as the operating tool 16a extends below the lighting device via the direction change lever L.

FIG. 16 is a circuit diagram of a lighting device according to a first embodiment of the present invention.

In the figure, the same parts as those in FIG. 15 are denoted by the same reference numerals, and description thereof will be omitted. Reference numeral 17 denotes an AC power supply, reference numeral 18 denotes a high-frequency lighting device, and reference numeral 19 denotes a light control unit.

The AC power supply 17 is a commercial 100 V AC power supply.

[0196] The high frequency lighting device 18 is
8a, a current limiting impedance 18b and a DC cut capacitor 18c, and the annular fluorescent lamps 12A and 12B
Are turned on in parallel via the current limiting impedance 18b and the DC cut capacitor 18c, respectively. The input terminal 18d is for all-light lighting, and the input terminal 18e is for dimming lighting.

The dimming means 19 is composed of a dimming element DR for red light emitting element, a dimming element DG for green light emitting element, and a dimming element DB for blue light emitting element. Intervening.

The changeover switch 16 is a four-stage changeover type pull switch.

That is, the first fixed contact 16b is connected to the all-light lighting input terminal 18d of the high-frequency lighting device 18.

The second fixed contact 16c is connected to the dimming lighting input terminal 18e of the high frequency lighting device 18.

Further, the third fixed contact 16d is connected to the light control means 19. The light control means 19 is provided for each color input terminal tR, tR of each color light emitting element R, G, B of the RGB light emitting element group.
G and tB, and the common terminal tC is connected to the other pole of the AC power supply 17.

Further, the fourth switching position 16e is a light-off position.

On the other hand, the movable contact 16f of the changeover switch 16
Are connected to one pole of an AC power supply 17.

Then, the movable contact 1 of the changeover switch 16
When 6f is at the fourth switching position 16e, all lamps are off.

Next, when the switch is switched to the first fixed contact 16b, the ring-shaped fluorescent lamps 12A and 12B are all-lighted at a high frequency to be connected to the all-light-emitting input terminal 18d of the high-frequency lighting device 18. I do.

Further, by switching to the second fixed contact 16c, the dimming lighting input terminal 18e of the high frequency lighting device 18 is switched.
, The ring-shaped fluorescent lamps 12A and 12B perform dimming lighting to perform general illumination.

When the mode is switched to the third fixed contact 16 d, the AC power supply 17 is connected to the color lighting unit 15. At the same time, the annular fluorescent lamps 12A, 12B
Turns off. By operating the light control means 19, the light emitting elements of the desired light color of the RGB light emitting element group 3 can be turned on with the desired brightness.

The color lighting unit 15 is capable of dimming independently for each color light emitting element R, G, B.
For example, if only the red light emitting element R is turned on, red light is generated and incident on the light diffusion cover 13 and diffused.
The light diffusion cover 13 turns red, and accordingly, the surrounding space is illuminated in red.

Similarly, by operating the light control means 19, green light emission and blue light emission can be performed.

Further, when light-emitting elements of arbitrary plural colors among the light-emitting elements R, G, and B of the respective colors are generated at the same time, each color light is diffused when transmitted through the light diffusion cover 13 so that additive color mixing is performed. Therefore, various intermediate colors can be generated on the surface of the light diffusion cover 13 and the surroundings can be illuminated with the intermediate colors.

At the time of the color mixing, the annular fluorescent lamp 12A,
12B does not interfere with color illumination.

Further, by operating the light control means 19, the RG
When the lighting level of the B light emitting element group 3 is reduced, it can be used as a nightlight or a security light. Moreover, since the desired color light can be obtained, it is possible to sleep comfortably by setting the night light of the color light according to the user's preference. In addition, there have been various demands for the brightness of the nightlight from the past, but it is possible to meet any brightness demand by adjusting the dimming level.

FIG. 17 is an enlarged front view of a main part showing a second embodiment of the lighting device of the present invention.

In the figure, 16 is a changeover switch, 16a
Is a changeover switch operating tool, 19a is a dimming operating tool, 20 is a connection cord, and 21 is a stator.

The changeover switch operating tool 16a is formed of a drawstring.

[0216] The dimming operation tool 19a includes the dimming elements DR and D.
In this configuration, three G and DB variable resistors are collectively housed in a case 19a1, and the operation unit 19a2 is projected around the case 19a1 at 120 ° intervals. Then, by coloring the operation portion 19a2 according to the color light of the light emitting element, the desired color light emitting element can be operated without a doubt.

The connection cord 20 is a connection line to the variable resistor, and has a tensile strength structure.

The fixed member 21 is provided with a changeover switch operating tool 16a.
The connection cord 20 is fixed to the tip of the.

Then, in order to operate the changeover switch 16, the dimming operation tool 19a is pulled. To perform the dimming operation, the operation unit 19a2 of the dimming operation tool 19a protruding from the case 19a1 is operated in the up-down direction.

Therefore, in this embodiment, both the changeover switch 16 and the light control means 19 can be operated only by operating the light control operation tool 19a, and the operability is significantly improved.

[0221]

According to each of the first to sixth aspects of the present invention, the RGB light emitting element group including the plurality of red light emitting elements, the plurality of green light emitting elements, and the plurality of blue light emitting elements is mixed with different light emitting colors to form a wiring board. In addition to providing an insulating holder having a unit mounting means on the rear surface of the wiring board, the insulation protection of the wiring board can be sufficiently performed, and the formation of the unit mounting means in the color lighting unit and the lighting device It is possible to provide a color lighting unit in which the color lighting unit can be easily attached to the device and the like, and the overall color of the color lighting unit can be reduced in size while achieving a high degree of color mixture definition and good additive color mixing.

According to the second aspect of the present invention, in addition, the insulating holder is provided with the spacer, and the color lighting unit can be mounted floating on the lighting device. It is possible to provide a color lighting unit that can easily release heat from the color lighting unit.

According to the third aspect of the present invention, in addition, since the unit mounting means has a detachable structure, it is possible to provide a color lighting unit which does not impair the function of a lighting device having a ring-shaped fluorescent lamp.

According to the fourth aspect of the present invention, in addition, since at least a part of each color light emitting element is configured to be connected in series to a power supply, a small voltage light emitting element can be used. Since the power supply voltage can be applied directly without using a step-down device, the lighting can be performed, so that a small and inexpensive color lighting unit can be provided.

According to the fifth aspect of the present invention, since each color light emitting element is detachably mounted on the substrate via the lamp socket provided on the substrate, it is easy to mount each color light emitting element on the substrate. In addition, it is possible to provide a color lighting unit that is easy to maintain.

According to the invention of claim 6, in addition to the provision of the dimming means on the back surface of the insulating holder, the wiring can be easily routed when incorporated in the lighting device, and the lighting device requires only a small change. Units can be provided.

According to each of the seventh to tenth aspects of the present invention, the substrate includes a plurality of red light-emitting elements, green light-emitting elements, and blue light-emitting elements, respectively, and the RGB light-emitting elements are arranged on the substrate in different light-emitting colors. A color lighting unit configured so that the element group can be individually and controllably connected to a power supply for each color light emitting element by electric wiring means so as to be located in a low illuminance space formed in a central portion of the ring-shaped fluorescent lamp. By arranging on the base and providing a dome-shaped light diffusion cover, the color lighting unit does not interfere with illumination by the ring-shaped fluorescent lamp, and the color lighting unit is compact to provide an economical color lighting illumination device. Can be provided.

According to the invention of claim 8, in addition to the above, a dimming means for dimming each color light emitting element of the color lighting unit is provided, and a switch for selecting at least one of the annular fluorescent lamp and the color lighting unit is provided. A lighting device having a switch and an operation tool for the light control means and a changeover switch assembling the operation tools can provide an illumination device with improved operability.

According to the ninth aspect of the present invention, in addition to the above configuration, the changeover switch is configured to be capable of switching among all-lighting, tuning lighting, color lighting and extinguishing of the ring-shaped fluorescent lamp. By using the four-stage changeover switch normally used for the lighting device without change, it is possible to provide a lighting device that functions as a nightlight using the RGB light emitting element group of the color lighting unit.

According to the tenth aspect, it is possible to provide a lighting device having the effects of the first to sixth aspects.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a first embodiment of a color lighting unit of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is also a bottom view

FIG. 4 is an enlarged partial sectional front view showing the light emitting element and the lamp socket.

FIG. 5 is an enlarged partial sectional side view of the same.

FIG. 6 is an enlarged front view showing the same small-sized light bulb.

FIG. 7 is an enlarged side view of the same.

FIG. 8 is an enlarged front view showing the same lamp socket.

FIG. 9 is an enlarged side view of the same.

FIG. 10 is a circuit diagram showing connections of RGB light emitting element groups in the first embodiment of the color lighting unit of the present invention.

FIG. 11 is a front view showing a second embodiment of the color lighting unit of the present invention.

FIG. 12 is a side view of the same.

FIG. 13 is a conceptual diagram illustrating the principle of the present invention.

FIG. 14 is a central sectional front view showing the first embodiment of the lighting device of the present invention.

FIG. 15 is a bottom view of the same light diffusion cover with its right half removed from the center.

FIG. 16 is a circuit diagram of the lighting device according to the first embodiment of the present invention.

FIG. 17 is an enlarged front view of a main part of a lighting device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Base 11a ... Chassis 11b ... Reflector 12A ... Tube-type fluorescent lamp 12B ... Tube-type fluorescent lamp 12a ... Lamp holder 13 ... Light diffusion cover 15 ... Color illumination unit 15a ... Substrate 3 ... RGB light emitting element group

Continuation of the front page (72) Inventor Hideo Moriyama 2-5-10 Nakanobu, Shinagawa-ku, Tokyo Moriyama Sangyo Co., Ltd. F-term (reference) 3K014 AA01 AA06 FA00 LA01 LA07 LB03 PB04 3K073 AA12 AA41 AA54 AA83 CG22 CG42 CG43 CG52 CJ11 CJ16 CJ17 CJ19

Claims (10)

[Claims] A plurality of red light-emitting elements, a plurality of green light-emitting elements and a plurality of blue light-emitting elements, each of which includes a plurality of red light-emitting elements, a green light-emitting element, and a blue light-emitting element; And an insulating holder provided with a unit attaching means and attached to the back surface of the color lighting unit. 2. The color lighting unit according to claim 1, wherein the insulating holder includes a spacer for the lighting device. 3. The insulating holder according to claim 1, wherein the unit mounting means has a detachable structure.
The described color lighting unit. 4. The color light-emitting device according to claim 1, wherein at least a part of each color light-emitting element is configured to be connected in series to a power source via a light control means. The described color lighting unit. 5. The color lighting device according to claim 1, wherein each of the color light emitting elements is detachably mounted on the wiring board via a lamp socket provided on the wiring board. unit. 6. A color lighting unit according to claim 1, wherein a dimming means capable of dimming each light emitting color element is provided on a back surface of the insulating holder. 7. A base member; an annular fluorescent lamp disposed on the base member so that a low-illuminance space is formed in a central portion; and an opalescent translucent material disposed on the front surface of the base member so as to cover the annular fluorescent lamp member. A dome-shaped light diffusion cover comprising: a substrate; a plurality of red light-emitting elements, a plurality of green light-emitting elements, and a plurality of blue light-emitting elements; An element group, and electrical wiring means configured to connect the RGB light emitting element group to a power supply so as to be individually controllable for each color light emitting element, so that each emitted color causes additive color mixing on the light diffusion cover surface. A color illuminating unit disposed on the base body in a low illuminance space formed in the center of the ring-shaped fluorescent lamp. 8. A dimming means capable of dimming each color light emitting element of a color lighting unit disposed on a base; a changeover switch for selecting at least one of a ring-shaped fluorescent lamp and a color lighting unit; The lighting device according to claim 7, further comprising: an operating tool of the light control means and an operating tool of the changeover switch. 9. The lighting device according to claim 8, wherein the changeover switch is configured to be capable of switching between all-lighting, tuning lighting, color lighting and extinguishing of the annular fluorescent lamp. 10. The lighting device according to claim 7, wherein the color lighting unit is the color lighting unit according to any one of claims 1 to 6.