JPH07249309A - Luminaire - Google Patents

Abstract

PURPOSE:To enhance atmosphere around a lamp by controlling light distribution to the front of a lamp, and making light permeate in the directions other than forward. CONSTITUTION:Light distribution controllers 10, 25 control part of lamp light, to thus control light distribution to the front of a lamp 1. The residual lamp light permeates a transparent portion 9 so as to radiate light sideways or rearward of the lamp 1. Consequently, it is possible to sense the atmosphere around the lamp 1 through the transparent portion 9, to sufficiently distribute light forward of the lamp 1 by the light distribution controllers 10, 25, to facilitate light distribution control, to particularly facilitate prevention of a phenomenon of illuminance drop directly under the lamp, and to enhance efficiency of the luminaire.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus applied to lighting (color rendering) of a flat stand such as a food section of a store.

[0002]

2. Description of the Related Art A conventional example is shown in FIGS. That is, in the first conventional example, the lamp 70 is covered with an aluminum shade 71 as shown in FIG. 5, and in the second conventional example, the lamp 70 is covered with an aluminum shade 71 as shown in FIG. A louver 72 is provided in the front, and in the third conventional example, a lamp 70 is covered with a transparent shade 73 such as glass or acrylic as shown in FIG. The fourth conventional example shown in FIG. 8 is similar to the third conventional example, but FIG.
The chain 75 is used instead of the chain 75.

[0003]

However, in the first conventional example, the light distribution control in the front of the lamp 70 is emphasized, and the improvement of the atmosphere due to the sparkle of the light around the aluminum shade 71 cannot be obtained. . The second conventional example is one in which glare is prevented by the louver 72 and the light distribution is controlled by the aluminum shade 71, but it has the same drawbacks as the first conventional example. In the third conventional example and the fourth conventional example, the atmosphere can be improved by the direct light from the lamp 70 that has passed through the shade 73, but the light distribution control in front of the lamp 70 is special. High brightness lamp 7 because it is not done
The use of 0 has a drawback in that glare is felt depending on the position of the luminaire.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a luminaire capable of obtaining light distribution control in front of a lamp and improving the atmosphere around the lamp.

[0005]

The luminaire according to claim 1 comprises:
A lamp, and a light distribution control means that has a light distribution control portion that is arranged around the lamp and that controls light distribution to the front of the lamp, and that has a light transmission portion that transmits light to areas other than the front of the lamp. It is equipped with. The lighting apparatus according to claim 2, wherein the lamp, a cylindrical light-transmitting portion that is arranged rearward of a light emission center of the lamp and transmits light toward the rear of the lamp, and is connected to a front end of the light-transmitting portion. And a first light distribution control unit that controls the light distribution to the front of the lamp, and a part of the light of the lamp that is arranged behind the light emission center inside the light transmitting unit and is reflected to the front. And a second light distribution control unit having a light-transmitting unit that allows light to pass through the light-transmitting unit.

According to another aspect of the lighting apparatus of the present invention, the lamp, the cylindrical light-transmitting portion arranged around the lamp, and the light-transmitting portion disposed inside the light-transmitting portion are partially forwarded. And a light distribution control unit for emitting the light. According to a fourth aspect of the present invention, in the lighting device according to the first aspect, the second aspect, or the third aspect, the light transmitting portion has a substantially prismatic diffusing portion.

[0007]

According to the lighting apparatus of the first aspect, a part of the lamp light is controlled by the light distribution control unit to control the light distribution to the front of the lamp, and the rest of the lamp light is transmitted through the light transmitting unit. And emits light to the side or back of the lamp. For this reason, it is possible to obtain the atmosphere around the lamp by the light transmitting portion, obtain the light distribution in front of the lamp by the light distribution control portion, and further improve the efficiency of the fixture.

According to the lighting equipment of the second aspect, the light passing through the light transmitting portion of the second light distribution control portion is transmitted through the light transmitting portion, and
The light reflected by the second light distribution control unit and the first light distribution control unit controls the light distribution to the front of the lamp. For this reason, the atmosphere around the lamp can be obtained by the transmitted light that does not cause glare transmitted through the light transmitting portion, and the first light distribution control unit and the second light distribution control unit can move the lamp in front of the lamp. Sufficient light distribution can be obtained, light distribution can be controlled easily, and in particular, the phenomenon of center drop (a phenomenon in which the illuminance of the area directly below the lamp becomes dark) can be easily prevented, and the efficiency of the fixture can be significantly improved. it can. In addition, since the first light distribution control unit such as aluminum shade is the part that receives the most external impact when lighting the store, it is possible to reduce the impact of the equipment and is safe. Furthermore, by changing the shape of the second light distribution control unit, it is possible to change the light distribution pattern while maintaining the same external shape. Further, when the second light distribution control unit is located in a range that is out of the visual field when the device is attached, the appearance is also good. Further, the first light distribution control unit and the second light distribution control unit also improve the appearance in that the lamp socket and the built-in object are difficult to see. Further, it becomes possible to reduce the weight as compared with the case where the entire light distribution control means is made of glass shade.

According to the lighting equipment of the third aspect, the light of the lamp can be transmitted through the light transmitting portion to obtain an atmosphere around the lamp, and a part of the lamp light can be obtained by the light distribution control portion in the light transmitting portion. Since the light distribution to the front of the lamp is controlled by, it becomes easy to control the light distribution to the front of the lamp. In this case, when a plurality of light distribution control units are provided, glare can be suppressed, the light transmitting unit can be brightened, and unevenness can be softened including the light distribution control. Further, the light distribution control unit can cut the high-intensity direct light of the lamp with respect to the light transmitting unit, and can control the light distribution to the front of the lamp with a wide beam angle.

According to the luminaire of claim 4, claim 1,
In claim 2 or claim 3, since the light transmitting portion has a substantially prismatic diffusing portion, in addition to the effect of claim 1, claim 2 or claim 3, the light transmitted through the light transmitting portion is formed into a prism shape. Since the light is diffused, a glittering atmosphere can be obtained around the transparent portion, and a highly visible device can be realized. In addition, the substantially prismatic diffusion portion makes it difficult to see the inside of the light-transmitting portion, and the components inside the light-transmitting portion cannot be seen in the visual field in the mounted state, so that the external appearance is not damaged.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this luminaire includes a lamp 1
And a light distribution control means 2. The lamp 1 is a high intensity discharge lamp (HID), but a frosted bulb is preferable to a clear bulb. Further, it is mounted on the lamp socket 4 of the socket base 39 provided on the fixture body 3. Reference numeral 28 is the light emission center of the arc tube of the lamp 1. The equipment main body 3 is a pendant type that is suspended from the ceiling. A hook ceiling cap 6 that hooks on the hook ceiling 5 of the ceiling 30 is provided at the upper end of the chain 7, and the equipment main body 3 is provided at the lower end of the chain 7.
Is installed. A cord 8 is connected from the hook ceiling cap 6 to the lamp socket 4 of the device body 3. Reference numeral 12 is a main body cover, and 27 is an eyebolt.

The light distribution control means 2 has a first light distribution control unit 10 and a second light distribution control unit 25 which are arranged around the lamp 1 and control the light distribution to the front of the lamp 1. It has a translucent portion 9 that transmits light to other than the front of the lamp 1. The translucent portion 9 is disposed on the rear side of the light emission center 28 of the lamp 1 and transmits the light to the rear of the lamp 1. In the embodiment, it is a glass or acrylic tubular trumpet shape, and the neck portion 37 at the rear end is fitted and locked to the receiving portion 38 of the instrument body 3,
The body cover 12 fixes the work piece. Further, an outer collar 14 is provided at the front end of the light transmitting portion 9, and a recess 15 is formed in the outer collar 14. Further, the light transmitting portion 9 has a substantially prismatic diffusing portion 11 on the outer peripheral surface thereof, and the substantially prismatic diffusing portion 11 of the embodiment.
Are formed by ribs which are convex stripes radially formed on the outer peripheral surface of the light transmitting portion 9. This is formed, for example, by press-molding the surface of transparent hard glass.

The first light distribution control unit 10 is connected to the front end of the light transmitting unit 9 and controls the light distribution to the front of the lamp 1. The example is a cylindrical aluminum shade having the function of a reflecting plate, and its inner surface is white-painted. Further, an inner collar 13 is provided at the rear end portion, and the inner collar 13 is attached to the outer collar 14 of the light transmitting portion 9.
It is locked and connected to the concave portion 15. The second light distribution control unit 25 is arranged inside the light transmitting unit 9 and behind the light emission center 28 of the lamp 1, reflects a part of the light of the lamp 1 forward, and transmits the light to the light transmitting unit 9. It has a light transmitting portion 26. The second light distribution control unit 25 of the embodiment is a substantially inverted dish-shaped auxiliary reflection plate having an inner surface coated with white, and the lamp 1 is inserted through the center hole as a light transmission unit 26. A preferable position of the second light distribution control unit 25 is, for example, a range where it is difficult to enter the field of view inside the light transmitting unit 9 in the installation state shown in FIG. 3 described later, but in the embodiment, the first light distribution control is performed. Section 10 and translucent section 9
It is placed at the boundary position with. In addition, the second light distribution control unit 25 is mounted by hanging two or three columns (not shown) from the receiving section 38 and the socket base 39 of the instrument body 3 to attach the second light distribution control unit 25. Screw to. The pillars are of aluminum or chrome color, and have a surface finish that is easily deceived by the glittering light by the substantially prismatic diffuser 11.

Further, as shown in FIG. 1, the range in which the second light distribution control unit 25 blocks the light emission center 28 of the lamp 1 is shown by thin line arrows 41 and 42, but this range is just that of the light transmitting unit 9. It is a portion that is continuous with the first light distribution control unit 10 on the lower end side, and the glare is not noticeable even if the height of the device is slightly lowered. FIG. 3 is an example in which a lighting fixture is actually installed in a store, 17 is a floor, 18 is an article stand with a height of about 0.8 m, and the lighting fixture is above about 1
It is suspended at a height of 1.5 m. 19 is a person. As shown in FIG. 3, when the person 19 looks at the light distribution control means 2 appearing on the outer surface of the luminaire, the lamp 1 is exactly blocked by the first light distribution control unit 10 to prevent glare.

According to this embodiment, part of the lamp light is controlled by the first light distribution control unit 10 and the second wiring control unit 25 to control the light distribution to the front of the lamp 1, and
The rest of the lamp light passes through the light transmitting portion 9 and emits light to the side or rear of the lamp 1. Therefore, the atmosphere around the lamp 1 can be obtained by the light transmitting portion 9, and the light distribution in front of the lamp 1 can be obtained by the first light distribution control unit 10 and the second wiring control unit 25. Moreover, it is possible to increase the efficiency of the device.

Further, the light transmitting section 26 of the second light distribution control section 25.
The light passing through passes through the translucent portion 9, and the light reflected by the second light distribution control unit 25 and the first light distribution control unit 10 controls the light distribution to the front of the lamp 1. Therefore, the translucent portion 9
The ambient light around the lamp 1 can be obtained by the transmitted light that does not make the transmitted glare more noticeable.
With the first light distribution control unit 10 and the second light distribution control unit 25, a sufficient light distribution can be obtained in front of the lamp 1, and the light distribution can be easily controlled. The phenomenon that the illuminance becomes dark) can be easily prevented, and the device efficiency can be remarkably improved. In addition, since the first light distribution control unit 10 such as an aluminum shade receives the most external shock during store lighting, the shock of the device can be softened and it is safe. Furthermore, by changing the shape of the second light distribution control unit 25, it is possible to change the light distribution pattern while maintaining the same external shape. Further, when the second light distribution control unit 25 is located in a range that is out of the visual field when the device is attached, the appearance is also good. Further, the first light distribution control unit 1
The 0 and second light distribution control units 25 also improve the appearance in that the lamp socket and the built-in objects are difficult to see. Further, it is possible to reduce the weight as compared with the case where the entire light distribution control means 2 is made of glass shade.

Further, the light transmitting portion 9 is a substantially prismatic diffusion portion 1.
Since the light passing through the light-transmitting portion 9 is diffused in a prism shape because of having No. 1, a sparkling atmosphere can be obtained around the light-transmitting portion 9, and a device with high visibility can be realized. Further, the substantially prismatic diffusing portion 11 makes it difficult to see the inside of the light transmitting portion 9 and the components inside the light transmitting portion 9 cannot be seen in the field of view in the mounted state, so that the appearance design is not deteriorated.

In this way, the glitter of light by the substantially prismatic diffusing section 11 of the translucent section 9 asserts the identity of the luminaire in a room such as a store and gives a sense of brightness to the space, and at the same time, it is large. The controlled light of the part illuminates the objects and the like directly under the lighting equipment, and contributes to bright and efficient lighting. A second embodiment of the present invention will be described with reference to FIG. That is, this luminaire includes a lamp 1, a cylindrical light-transmitting part 9 arranged around the lamp 1, and a light-transmitting part 9 arranged inside the light-transmitting part 9 so that a part of the light of the lamp 1 is moved forward. The light distribution control part 20 which radiates is provided.

The translucent portion 9 of the embodiment has a trumpet shape, and its rear end is attached to the instrument body 3 as in the first embodiment. Further, the substantially prismatic diffuser 11 similar to that of the first embodiment is provided radially on the outer circumference so that the light transmitted through the light transmitting portion 9 produces a glittering feeling. The light distribution control unit 20 uses two reflection plates 21 and 22 as an example, and is provided to such an extent that the light transmitted through the light transmitting unit 9 does not feel glare. The first reflecting plate has an inverted dish shape, and the second reflecting plate 22 has an inverted bowl shape, both of which have a light-transmitting portion that inserts the lamp 1 in the center and also allows light to pass above the light-transmitting portion 9. 26 are formed, and both are arranged behind the light emission center 28 of the lamp 1. Further, the reflector 22 is controlled so as to reflect the light just below the device, and the reflector 21 is controlled so as to reflect the light in a wider area than that. Then, the light reflected by the reflection plate 21 that is not specularly reflected and is incident on the back surface of the reflection plate 22 is transmitted through the light transmitting portion 9 and used to brighten the light transmitting portion 9. The inner surface of the reflector 22 is white due to the balance of light distribution.
It is preferable that the outer surface is made of a silver-colored material such as aluminum and the appearance is finished by the substantially prismatic diffusing portion 11 so as to be easily deceived. The range indicated by broken lines 43 and 44 in the figure is the reflection plate 2
Reference numerals 1 and 22 denote ranges in which direct light from the light emission center 28 of the lamp 1 is shielded, and two-dot chain lines 45 and 46 denote light from the light emission center 28, and show specular reflection optical paths by the reflection plates 21 and 22.

According to this luminaire, the light of the lamp 1 can be transmitted through the light-transmitting portion 9 to obtain an atmosphere around the lamp 1, and the light distribution control portion 20 in the light-transmitting portion 9 allows the lamp light to be emitted. Since the light distribution to the front of the lamp 1 is controlled by a part of the above, it becomes easy to control the light distribution to the front of the lamp 1. In this case, if a plurality of light distribution control units 20 are provided, glare can be suppressed, the light transmitting unit 9 can be brightened, and unevenness including light distribution control can be softened. Further, the reflection plates 21 and 22 can cut the high-intensity direct light of the lamp 1 with respect to the light-transmitting portion, and control the light distribution to the front of the lamp 1 with a wide beam angle.

The shape of the light transmitting portion 9 and the reflecting plate 21,
Depending on the shape of 22, the mirror finish on both surfaces of each of the reflection plates 21 and 22 may be more appropriate, or white coating may be more appropriate. Further, in the present invention, the substantially prismatic diffusing portion 11 of the transparent portion 9 may have unevenness on one of the outer peripheral surface and the inner peripheral surface, and the shape of the unevenness is arbitrary as long as prismatic diffused light can be obtained. The shape may be a pyramid, a cone, a hemisphere, or the like, and the cross-section may be linear as in the embodiment. Further, a void may be formed inside the transparent portion 9 and the shape of the void may be as described above to obtain prismatic diffused light. Further, the suspension means of the instrument main body 3 can be a pipe suspension or the like.
Further, the lamp 1 may be an incandescent lamp, a halogen lamp or the like.

[0022]

According to the lighting apparatus of the first aspect, a part of the lamp light is controlled by the light distribution control unit to control the light distribution to the front of the lamp, and the remaining part of the lamp light is the light transmitting unit. Light is emitted to the side or rear of the lamp through the. Therefore, it is possible to obtain an atmosphere around the lamp with the light transmitting portion, obtain light distribution in front of the lamp with the light distribution control portion, and further, it is possible to increase the efficiency of the fixture. is there.

According to the lighting device of the second aspect, the light passing through the light transmitting portion of the second light distribution control portion is transmitted through the light transmitting portion, and
The light reflected by the second light distribution control unit and the first light distribution control unit controls the light distribution to the front of the lamp. For this reason, the atmosphere around the lamp can be obtained by the transmitted light that does not cause glare transmitted through the light transmitting portion, and the first light distribution control unit and the second light distribution control unit can move the lamp in front of the lamp. Sufficient light distribution can be obtained, light distribution can be controlled easily, and in particular, the phenomenon of center drop (a phenomenon in which the illuminance of the area directly below the lamp becomes dark) can be easily prevented, and the efficiency of the fixture can be significantly improved. it can. In addition, since the first light distribution control unit such as aluminum shade is the part that receives the most external impact when lighting the store, it is possible to reduce the impact of the equipment and is safe. Furthermore, by changing the shape of the second light distribution control unit, it is possible to change the light distribution pattern while maintaining the same external shape. Further, when the second light distribution control unit is located in a range that is out of the visual field when the device is attached, the appearance is also good. Further, the first light distribution control unit and the second light distribution control unit also improve the appearance in that the lamp socket and the built-in object are difficult to look into. Further, it becomes possible to reduce the weight as compared with the case where the entire light distribution control means is made of glass shade.

According to the lighting device of the third aspect, the light of the lamp can be transmitted through the light transmitting portion to obtain an atmosphere around the lamp, and a part of the lamp light can be obtained by the light distribution control portion in the light transmitting portion. Since the light distribution to the front of the lamp is controlled by, it becomes easy to control the light distribution to the front of the lamp. In this case, when a plurality of light distribution control units are provided, glare can be suppressed, the light transmitting unit can be brightened, and unevenness can be softened including the light distribution control. Further, the light distribution control unit can cut the high-intensity direct light of the lamp with respect to the light transmitting unit, and can control the light distribution to the front of the lamp with a wide beam angle.

According to the luminaire of claim 4, claim 1,
In claim 2 or claim 3, since the light transmitting portion has a substantially prismatic diffusing portion, in addition to the effect of claim 1, claim 2 or claim 3, the light transmitted through the light transmitting portion is formed into a prism shape. Since the light is diffused, a glittering atmosphere can be obtained around the transparent portion, and a highly visible device can be realized. In addition, the substantially prismatic diffusion portion makes it difficult to see the inside of the light-transmitting portion, and the components inside the light-transmitting portion cannot be seen in the visual field in the mounted state, so that the external appearance is not damaged.

[Brief description of drawings]

FIG. 1 is a cutaway front view of a first embodiment of the present invention.

FIG. 2 is an overall front view.

FIG. 3 is an explanatory diagram of a usage state.

FIG. 4 is a front view of the second embodiment.

FIG. 5 is a front view of a first cross section of a first conventional example.

FIG. 6 is a front view of a second conventional example.

FIG. 7 is a front view of a third conventional example.

FIG. 8 is a front view of a fourth conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lamp 2 Light distribution control means 3 Instrument body 4 Lamp socket 9 Light transmitting section 10 Light distribution control section 11 Substantially prismatic diffusing section

Claims (4)

[Claims] 1. A lamp, and a light distribution control unit which is arranged around the lamp to control light distribution to the front of the lamp, and a light transmitting unit which transmits light to other than the front of the lamp. A luminaire having a light distribution control means. 2. A lamp, a cylindrical light-transmitting portion which is arranged rearward of a light emission center of the lamp and transmits light to the rear of the lamp, and the lamp is connected to a front end of the light-transmitting portion. A first light distribution control unit for controlling light distribution to the front of the lamp; and a first light distribution control unit arranged behind the light emission center inside the light transmitting unit to reflect a part of the light of the lamp forward and And a second light distribution control unit having a light-transmitting unit that allows light to pass through the light-transmitting unit. 3. A lamp, a cylindrical light-transmitting portion arranged around the lamp, and a light distribution control portion arranged inside the light-transmitting portion and radiating part of the light of the lamp forward. Lighting equipment equipped with. 4. The lighting apparatus according to claim 1, wherein the light transmitting portion has a substantially prismatic diffusing portion.