JP3524672B2 - Luminaire - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting device used for a signboard, an electric decoration at a store entrance, an illumination, a chandelier, or the like, and a light emitting device using the same.

[0002]

2. Description of the Related Art Conventionally, a miniature lamp consisting of an incandescent light bulb has been used as a light emitting device used for a lighting device for decoration such as illumination, illumination and chandelier. This bean lamp has poor durability and must be replaced frequently. Moreover, when a miniature lamp is used for a signboard or the like placed at a high place, the replacement is troublesome. And the mini lamp consumes a lot of power.

Therefore, it is conceivable to use a light emitting diode (hereinafter referred to as LED), an optical fiber, or a xenon tube lamp, which has excellent durability and consumes less power.

[0004]

However, since the above-mentioned LED, optical fiber and xenon lamp have good directional characteristics of light in only one direction and are inferior in diffusivity, they are widely diffused by decorative lighting such as signboards. It is not suitable for conspicuousness in multiple directions, and when it is desired to have diffusiveness for light, a large number must be used in close contact, which is expensive and impractical. there were.

Therefore, an object of the present invention is to diffuse light to the surroundings even when using a light-emitting material such as an LED, an optical fiber, and a xenon lamp, which has a weak light diffusing property, and can be used for signboards and store entrances. An object of the present invention is to provide a light emitting device that can be used at a low cost even in a wide area such as an electric decoration.

[0006]

As a means for achieving the above-mentioned object, the feature of the light-emitting device according to claim 1 is that it has a light-emitting body, a translucent cover body for covering the light-emitting body, and a substrate. , The light emitter is a light emitting diode lamp , an optical fiber
Lamps, xenon lamps
In the interior of the translucent cover body, a housing recess 2a for housing the light emitter is formed, and on the inner surface of the housing recess, a plurality of concave curved surfaces for diffusing light emitted from the light emitter are formed. Part is formed, and the concave curved surface part is a translucent cover.
A spherical hole is formed in the part facing the top of the body,
The accommodation recess on the lower side of this spherical hole is
Also has a large spherical part, and the translucent cover is formed on this spherical part.
A groove section with an arcuate cross section is provided continuously along the axial direction of the body.
A ridge in the axial direction is formed between the grooves of the
The lower part of the groove is formed along the axial direction of the translucent cover body.
Vertical groove portions with an arcuate cross section are connected in series, and there is no protrusion between these vertical groove portions.
This is where the line is formed. Is.

In the above description, the concave curved surface portion is a spherical surface or 2
It includes a concave portion having a quadric surface, and the light incident on the concave curved surface is reflected and refracted to diffuse the light. Then, unevenness is formed by providing a plurality of concave curved surface portions.

A feature of the light emitting device according to claim 2 is that the light transmitting device
A spherical part is formed on the outer surface of the top of the bar body, and the outer peripheral surface is upper part.
The stepped ring-shaped part with an arc-shaped cross section is formed in the substantially conical part of
It is in place .

[0009] Features of the light-emitting device according to claim 3, on a substrate
It is in the place where the reflector is superposed on the surface .

A feature of the light emitting device according to claim 4 is that this light emitting device
The tool is attached to the rail member via the pedestal part.
A blind plate is attached to hold the space between the lighting fixtures.
In .

A feature of the light emitting device according to claim 5 is that the light transmitting device
In the recess of the bar body, in the axial direction of the translucent cover body,
Where a plurality of small holes that extend are closely formed
It

A feature of the light emitting device according to claim 6 is that the small hole is provided.
The section has a circular cross section and a spherical bottom surface.
ー Radially from the axis of the body, and closely shift the axes
It is in the place where it is connected . .

[0013] Features of the light-emitting device according to claim 7, wherein the light transmission
The translucent cap member 12 is fitted to the transparent cover body.
Can be replaced because it is removable and removable
Where it is .

A feature of the light emitting device according to claim 8 is that
A translucent cover body that covers this luminous body and this translucent cover.
-Removably fitted to the body to accommodate and cover this translucent cover body
The light-emitting body has a translucent cap member and a substrate,
Light emitting diode lamp, fiber optic lamp, xeno
The above-mentioned translucent cover is selected from
An accommodating recess for accommodating the luminous body is formed inside the body.
Yes, inside the translucent cap member, the translucent
An accommodating recess for accommodating the cover body is formed, and the translucent cover is formed.
The accommodating recess for accommodating the bar body faces the top of the light emitting device.
A spherical hole is formed in the part, and the lower side of this spherical hole is
The accommodating recess has a substantially cylindrical shape with a larger diameter than the spherical hole.
Is formed on the inner surface of the translucent cap member in the axial direction.
A groove with an arcuate cross section is continuously provided along the
An axial ridge is formed and this groove is formed below it.
A substantially cylindrical portion having a diameter larger than that of the substantially cylindrical portion is formed,
A groove with an arcuate cross section is continuously provided on the inner surface along the axial direction.
The ridges are formed between the groove portions.

The feature of the light emitting device according to claim 9 is that
The outer surface of the translucent cap member according to the item 8 has its top face up.
It is formed on the spherical surface corresponding to the spherical hole, and
The peripheral side part is formed on the curved trapezoidal part.
It

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. 1, 3 and 5 show the first embodiment of the present invention.
The light-emitting tool of an Example is shown. The light emitting device 1 has a translucent cover 2, a substrate 3 and an LED lamp 4 as main components. The LED lamp 4 is preferably an ultra-high brightness LED.

The light-transmitting cover 2 is preferably a light-transmitting member, for example, an integrally molded product of acrylic resin. The light-transmitting cover 2 has an upper portion formed in a substantially conical shape, and a lower portion following the upper portion is formed in a cylindrical shape. And the transparent cover 2
An accommodating recess 2a for accommodating the LED lamp 4 is formed inside. The LED is provided on the inner surface of the accommodation recess 2a.
A concave curved surface portion for diffusing the light emitted from the lamp 4 to the outer peripheral side of the translucent cover 2 is formed. That is,
The light emitted from the LED lamp 4 has a strong directional characteristic toward the front side (upper side in the drawing) of the LED lamp 4 and weak diffusibility, so that this light is diffused to the peripheral side portion of the translucent cover 2. First, a spherical hole 2b is formed in a portion facing the top of the translucent cover 2. The spherical hole 2b diffuses the light emitted from the LED lamp 4 to the front side to the peripheral side and the inward side of the housing recess 2a by the lens effect. As shown in FIG. 5A, the accommodation recess 2a on the lower side of the spherical hole 2b is formed in a spherical portion (dome-shaped portion) which is slightly larger than the spherical hole 2b. A groove portion 2c having an arcuate cross section is continuously provided in the (dome-shaped portion) along the axial direction of the translucent cover 2. An axial ridge is formed between the groove portions 2c. The groove portion 2c having an arcuate cross section also serves to diffuse the light from the LED lamp 4 to the peripheral side portion of the translucent cover 2 by the lens effect. Further, a vertical groove portion 2d having an arcuate cross section along the axial direction of the translucent cover 2 is continuously provided below the groove portion 2c having an arcuate cross section, and a ridge is formed between the vertical groove portions 2d. There is. The vertical groove portion 2d also serves to diffuse the light from the LED lamp 4 to the peripheral side portion of the translucent cover 2 by the lens effect. In this manner, the spherical hole 2b, the arcuate cross-section groove 2c, and the arcuate cross-section vertical groove 2d formed in the accommodation recess 2a complexly reflect and refract the light from the LED lamp 4 to transmit the light-transmitting cover 2. When the light-emitting device is attached to an illuminated signboard or the like and used, the surroundings of the light-emitting device 1 are illuminated brightly so that not only the front side of the light-emitting device 1 , It will be clearly visible from the direction of the peripheral surface.

As described above, since the light emitting device 1 of the present embodiment sufficiently diffuses the light from the LED lamp 4 by means of the spherical or arcuate curved surface formed on the inner surface thereof, the light is diffused on the outer surface thereof. The structure for this does not necessarily have to be provided. Therefore, since it may be formed in a simple dome shape, or a decorative shape such as a doll may be formed, the degree of freedom in design and decorativeness are enhanced.

Further, in the light emitting device 1, a spherical surface portion 2e is formed on the outer surface of the top portion thereof. Further, the substantially conical portion on the upper portion of the outer peripheral surface is formed as a step-shaped ring-shaped portion 2f having an arc-shaped cross section. The spherical portion 2e and the stepped ring-shaped portion 2f also have a function of reflecting and refracting the light from the LED lamp 4 in a complicated manner by the lens effect and diffusing it to the peripheral side portion. Further, since this outer surface shape is basically formed by a curved surface, it is highly safe in use.

As shown in FIG. 5A, the substrate 3 has L
A mounting hole 3a for mounting the ED lamp 4 is formed, and a terminal 5 into which the leg 4a of the LED lamp 4 is fitted is fitted into the mounting hole 3a, and the terminal 5 is projected from the bottom surface of the substrate 3. . The substrate 3 is made of a translucent cover 2 with an adhesive.
Fixed to. A reflector may be provided on the upper surface of the substrate 3 by superposition. The light emitting device 1 assembled in this way
FIG. 1 shows a light emitting device in which a plurality of light emitting devices are arranged side by side. In this light emitting device, a light emitting device 1 is mounted on a rail member 7 via a pedestal portion 6.
It is attached to. The rail member 7 has a long groove 7
a is formed, and the flat cable 8 is embedded in the long groove 7a. The flat cable 8 is connected to the power cord 9. The substrate 3 of the light emitting device 1 is fixed to the U-shaped pedestal portion 6 with an adhesive or the like, and the pedestal portion 6 is fixed to the rail member 7 with an adhesive or the like. A hole (not shown) for inserting the terminal 5 of the LED lamp 4 is formed in the pedestal portion 6, and the terminal 5 is connected to the flat cable 8. When the light emitting device 1 is attached to the rail member 7, a U-shaped blindfold plate 10 that holds the space between the light emitting devices 1 and 1 is attached. Therefore, if the length of the blind plate 10 is adjusted, the interval between the light emitting devices 1 and 1 can be adjusted, and fine positioning at the time of mounting is unnecessary. The light emitting device assembled in this manner is attached to an illuminated signboard, a frame body at the entrance of a building, or the like with an adhesive, a screw, or the like.

FIG. 2 shows a rail member 70 according to another embodiment. This light emitting device is an example in which the light emitting device and the power source are connected by the lead wire 11 instead of the flat cable. A recess 70a is formed in the rail member 70, and the lead wire 11 is housed in the recess 70a. Blindfold 1
The use of 0 attached to the rail member 70 is the same as in the above embodiment.

FIGS. 4 and 6 show a second embodiment of the translucent cover 2 used in the light emitting device 1. In the translucent cover 2, a small hole portion 2g extending in the axial direction of the translucent cover 2 is closely formed in a housing recess 2a for housing the LED lamp 4. As shown in FIG. 6 (b), the small holes 2g are radially arranged from the axis of the translucent cover 2 and are densely arranged with the axes of the small holes 2g, 2g ... is there. The small hole 2g has a circular cross section and a spherical bottom. Therefore, the small hole portion 2g finely diffuses the light from the LED lamp 4 by the lens effect. In this embodiment, two LED lamps 4 are used.

7A to 7C show a light emitting device 100 provided with a translucent cap member 12 which is detachably fitted to the translucent cover 2 and accommodates and covers the translucent cover 2. Is shown. In the light emitting device 100, the cover that covers the LED lamp 4 has a substantially double structure. The inner translucent cover 2 is similar to the cover part of the mini lamp,
A translucent member having a uniform thickness is formed in a substantially mountain shape, and no unevenness such as a curved surface for diffusing light is formed. On the other hand, the light-transmissive cap member 12 has, as in the light-transmissive cover 2 of each of the above-described embodiments, an unevenness formed by a curved surface for diffusing light on the inner surface thereof. As a structure for the light diffusion, an accommodating recess 12a for accommodating the translucent cover 2 is formed inside the translucent cap member 12, and the accommodating recess 12a has an inner surface for accommodating the light emitting device 100. Spherical hole 1 at the site facing the top
2b is formed. This spherical hole 12b is an LED
The light radiated from the lamp 4 to the front side is diffused inward by the lens effect to the peripheral side and the inner side of the housing recess 12a. A substantially cylindrical portion having a diameter larger than that of the spherical hole portion 12b is formed in the accommodation recess 12a below the spherical hole portion 12b, and a cross-sectional circle along the axial direction of the translucent cap member 12 is formed on the inner surface thereof. The arc-shaped groove 12c is continuously provided. And each groove 12
An axial ridge is formed between c and 12c. Further, below that, a substantially cylindrical portion having a diameter larger than that of the substantially cylindrical portion having the groove 12c is formed, and an inner surface thereof is provided with a groove portion 12d having an arcuate cross section continuously along the axial direction. 1
A ridge is formed between 2d. These groove portions 12c and 12d having an arcuate cross section also serve to diffuse the light emitted from the LED lamp 4 and transmitted through the translucent cover 2 to the peripheral side portion of the translucent cap member 12 by the lens effect.

Since the inner diameter of the substantially cylindrical portion in which the groove 12c is formed in the translucent cap member 12 is formed to be substantially the same as the outer diameter of the translucent cover 2, the translucent cap is formed. The member 12 can be fitted to the translucent cover 2 and is detachable.

The outer surface of the transparent cap member 12 is
The top portion of the spherical portion 12 corresponds to the spherical hole portion 12b.
e, and the lower peripheral side portion thereof is formed as a curved trapezoidal portion 12f. Therefore, this outer surface configuration also further enhances the lens effect of diffusing light. Further, since this outer surface shape is basically formed by a curved surface, it is highly safe in use.

It is preferable that both the transparent cover 2 and the transparent cap member 12 are integrally molded products of acrylic resin. Further, the translucent cover 2 may be provided so that it can be fitted to the substrate 3.

In such a light emitting device 100, since the translucent cap member 12 can be easily attached and detached, it is easy to replace the translucent cap member 12 when it is dirty, and the LED lamp 4 has a high hermeticity. Therefore, the durability is also improved. further,
If a plurality of translucent cap members 12 having a decorative shape on the outer surface are prepared and appropriately replaced, the decorative property can be enhanced. Since other configurations are substantially the same as those of the above-described light emitting device 1, corresponding members are designated by the same reference numerals.

In the light emitting device 100, a concave curved surface portion for diffusing light is formed on the light transmitting cap member 12 side. On the contrary, in contrast to the first and second embodiments. As shown in the light emitting device 1, the translucent cap member 12 may not have such a structure by forming a concave curved surface portion or the like for diffusing light on the translucent cover 2 side. Even in this case, the translucent cap member can be replaced, and various decorative shapes can be applied, as in the above-described embodiment.

LED which is a light emitting body in each of the above embodiments
The lamp 4 may be replaced with an optical fiber or a xenon lamp. Since these optical fibers or xenon lamps have strong directional characteristics of light in one direction and weak diffusivity, the structure of the translucent cover for diffusing light shown in each of the above embodiments is effective.

[0030]

According to the invention described in claim 1, the accommodation recess is formed in
Spherical hole section, arc section groove section and arc section vertical section
LED groove, optical fiber lamp, xeno
Light from the light source of the lamp is complicatedly reflected, refracted and transmitted.
Since it passes through the optical cover and diffuses to the peripheral side, this
When the light emitting device of is attached to an illuminated signboard, etc.,
By illuminating the area around the light fixture brightly,
Visible not only from the surface side but also from the side of the peripheral side
Will be done. Therefore, it is a light-emitting device that can be used in a wide area such as a signboard or a store entrance illumination. <br /> LED lamps, optical fiber lamps, xenon lamps, etc.
Since the luminescent material is used, the durability is high, and even if the number of the light emitting elements used is small, it is inexpensive.

According to the second aspect of the invention, the spherical surface portion 2e and the stepped shape are provided.
Due to the lens effect, the ring-shaped part 2f of the LED lamp also
The light from 4 is complicatedly reflected and refracted to be diffused to the circumferential side.
Work. In addition, this outer surface shape is basically a curved surface.
Since it is configured with
Has become. Since the top of the translucent cover body is formed into a spherical surface, it is possible to improve the diffusibility of light in the top direction (front side) of the translucent cover body.

[0032] Since the invention of claim 4 is provided with a blind plate for holding the interval between the light emitting device in the rail unit, the eye
By adjusting the length of the hidden plate, you can adjust the interval of the light emitting device,
Since fine positioning is not required at the time of mounting, it is easy to arrange and mount the light emitting device.

According to the fifth and sixth aspects of the invention, when a plurality of small holes are provided, the light can be finely diffused.

According to the invention of claim 7 , the translucent cap member can be easily attached and detached, so that it can be easily replaced, and since it has a double structure, the hermeticity is high and the durability is improved. Also, the decorativeness is improved. Further, according to the invention of claim 8 , a translucent cap member is detachably fitted to a translucent cover body accommodating the luminous body, and a plurality of concave curved surfaces for diffusing light are formed on the inner surface of the concave portion of the translucent cap member. since forming a part, it is possible to diffuse light from the light emitter to the peripheral side surface direction of the light emitting device, it is easy to exchange parts in which light-transmitting cap member for the light diffuser, the light emitting It has a high body tightness and durability. Further, since the outer shape of the translucent cap member has a decorative shape and can be replaced, the decorative property is also improved.

According to a ninth aspect of the present invention, there is provided a transparent cap member.
The outer surface configuration further enhances the lens effect of diffusing light
Will be. Furthermore, this outer surface shape is basically a curved surface.
Therefore, it is highly safe to use.
It

[Brief description of drawings]

FIG. 1 is a perspective view of a light emitting device.

FIG. 2 is a perspective view of another embodiment of the rail member.

FIG. 3 is a perspective view of the light emitting device of the first embodiment.

FIG. 4 is a perspective view of a light emitting device of a second embodiment.

5A is a cross-sectional view of the light emitting device of the first embodiment, and FIG. 5B is a bottom view thereof.

FIG. 6 (a) is a sectional view of a light emitting device of a second embodiment, and FIG. 6 (b) is a bottom view thereof.

7 (a) is a perspective view of a light emitting device having a translucent cap member, FIG. 7 (b) is a perspective view of the translucent cap member, and FIG. 7 (c) is a perspective view thereof. It is a bottom view.

[Explanation of symbols]

1,100 emitting device 2 translucent cover body 2a, 12a accommodating recess 2b, 12b concave surface (spherical hole portion) 2c, 12c concave surface (cross section arcuate groove portion) 2d concave surface (arcuate cross section vertical groove ) 2e, 12e curved surface portion (spherical surface portion) 2f curved surface portion (circular arc-shaped ring portion) 2g concave curved surface portion (small hole portion) 12d concave curved surface portion (circular arc groove portion) 12f curved surface portion (substantially trapezoidal portion) 3 substrate 4 Light emitter (light emitting diode lamp) 7 Rail member 10 Blind plate

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields investigated (Int.Cl. ⁷ , DB name) G09F 13/00-13/04 F21S 2/00 F21V 5/04

Claims (9)

(57) [Claims] 1. A light emitting body (4), a translucent cover body (2) covering the light emitting body, and a substrate (3), wherein the light emitting body (4) is a light emitting diode lamp or an optical fiber.
Lamps, xenon lamps
In the interior of the translucent cover body, a housing recess (2a) for housing the light emitting body is formed, and the inner surface of the housing recess is provided with a plurality of light diffusing lights emitted from the light emitting body. A concave curved surface portion is formed, and the concave curved surface portion is a portion facing the top of the translucent cover body.
A spherical hole (2b) is formed in the bottom of the spherical hole.
The accommodation recess on the side has a spherical part that is larger than the spherical hole.
Is formed along the axial direction of the translucent cover body.
Groove sections (2c) with an arcuate cross section are continuously provided, and between these groove sections
An axial ridge is formed below the groove with an arcuate cross section.
Is a vertical section with an arc cross section along the axial direction of the translucent cover.
Grooves (2d) are connected, and a ridge is formed between each vertical groove.
A light emitting device that is characterized by being 2. The top of the transparent cover body according to claim 1.
A spherical part (2e) is formed on the outer surface of the part, and a substantially circular shape on the top of the outer peripheral surface.
Conical part sectional arcuate stepped ring-shaped portion (2f) is of form
A light-emitting device characterized by being provided . 3. The reflector according to claim 1, which is provided on the upper surface of the substrate.
A light emitting device characterized by being provided by polymerizing . 4. The light emitting device according to claim 1, further comprising a pedestal part (6) .
It is attached to the rail member via the
Characterized by having a blind plate (10) for holding
A light emitting device . 5. The yield of the light-transmitting cover according to claim 1, wherein (2)
A plurality of light-transmitting cover bodies extending in the axial direction are provided in the recess.
The small holes (2g) are closely formed
Luminaire . 6. The small hole portion (2g) of claim 5 has a circular cross section.
In addition, the bottom surface has a spherical shape, and is released from the axis of the translucent cover body.
Must be closely connected in a radial manner with their axes displaced from each other
A light emitting device characterized by . 7. The light-transmitting property according to any one of claims 1 to 6.
A transparent cap member (12) should be fitted on the cover body.
It can be replaced because it is removable and removable.
A light emitting device characterized by being present . 8. A light-emitting body and translucency for covering the light-emitting body.
The cover body and this translucent cover body are detachably fitted and
A translucent cap member (12) and a base for accommodating and covering the optical cover body.
And a light emitting diode lamp, an optical fiber.
A lamp or a xenon lamp is selected, and an accommodating recess for accommodating the luminous body is formed inside the translucent cover body, and the translucent cap member is provided with the accommodating recess inside. The accommodation recess 12a for accommodating the transparent cover body is formed, and the accommodation recess for accommodating the translucent cover body is formed by the light emitting device (10).
A spherical hole (12b) is formed in the area facing the top of ( 0).
In the accommodation recess (12a) below the spherical hole ,
A substantially cylindrical portion having a diameter larger than that of the spherical hole portion is formed.
The inner surface is arcuate in cross section along the axial direction of the transparent cap member.
The grooves (12c) of the
Is formed, and below this there is a substantially cylindrical shape with this groove formed.
A substantially cylindrical part with a larger diameter than the part is formed, and its inner surface
Grooves (12d) with an arcuate cross section are arranged in series along the axial direction.
A ridge is formed between the grooves (12d) of the
A light emitting device . 9. The translucent cap member (12) according to claim 8.
The outer surface of the top corresponds to the spherical hole (12b) above.
It is formed on the spherical surface (12e) , and the lower peripheral side is curved surface.
Light emission characterized by being formed in a substantially trapezoidal part (12f)
Ingredient