JP6273639B2 - Lighting device and lighting stand - Google Patents

Description

  The present invention relates to a lighting device and a lighting stand including the lighting device. In particular, the present invention relates to a lighting device and a lighting stand having an artificial flower portion that emits light.

  Patent Documents 1 and 2 disclose an electric decoration flower including an LED as a light emitter. These decorative artificial flowers are used to obtain a decorative effect by causing an LED installed in the artificial flower portion to emit light, and are generally used as an ornament for indoor use.

Japanese Utility Model Publication No. 5-77212 JP 2003-286609 A

  By the way, the above-mentioned conventional electric decoration artificial flowers illuminate the petals etc. beautifully by turning on the LED and enhance the decoration effect, but only the conventional decoration effect of illuminating the petals etc. by simply emitting the LED is obtained. However, the unexpectedness and originality of the external appearance design with the LED turned on were poor. In addition, the above-mentioned illuminated artificial flower cannot be used as a lighting device such as a lighting stand.

  The present invention was devised in view of such circumstances, and provides an illumination device and a lighting stand that have an artificial flower part that emits light and that are excellent in decorativeness and unexpectedness of the artificial flower part during light emission. It is an object.

The illuminating device of the present invention includes a light emitter made of an LED or an organic EL , a light emitter attachment member to which the light emitter is attached, and the light emission as seen from a direction facing the light emitter attachment surface of the light emitter attachment member. body and to completely cover, a, a light diffuser plate which is disposed along the light emitter mounting surface of the light emitter mounting member includes a plurality of pseudo petals arranged radially, the radial A plurality of pseudo petals, further comprising: a pseudo flower core portion disposed at the center of the plurality of pseudo petals disposed on the connecting portion; and a connecting material connecting the light emitter attachment material and the pseudo flower core portion. The light emitter mounting surfaces of the light emitter mounting materials are directed to the same side, and the light irradiation directions of a plurality of light emitters respectively attached to the light emitter mounting surfaces are directed to the same side.

  According to the illuminating device having such a configuration, the light of the light emitter is diffused by passing through the light diffusing plate. Therefore, even if a point light source is used, the light is sufficiently diffused by the light diffusing plate. This reduces glare when directly viewing the light source and reduces the occurrence of multiple shadows. In addition, since a part of the light of the light emitter leaks in the vicinity of the base end portion of the light diffusing plate through the light diffusing plate, a state of being condensed near the pseudo flower core portion is formed, and the decorative property The light decoration effect which was excellent in the unexpectedness is obtained.

  Moreover, the illuminating device of this invention is provided with the said structure, The said light-diffusion plate is substantially orthogonal to the said radiation | emission direction, and when it sees from the direction along a plate surface, the surface at the light-emitting body side becomes convex. It is desirable that it be curved.

  According to the illuminating device having such a configuration, a part of the light emitted from the light emitter and diffused by the light diffusing plate again enters the vicinity of the base end portion of the light diffusing plate. It is further strengthened.

  Moreover, the lighting device of the present invention includes any one of the above-described configurations, and the light emitter is configured in a circuit configuration such that current is supplied by parallel connection to each other, and the connection material is a conductive pipe material. It is desirable that the power supply is used also as a negative electrode for power supply, and the positive electrode wiring for power supply is inserted into the connecting member.

  According to the lighting device having such a configuration, since the outer diameter of the pipe material can be reduced, there is an advantage that the pipe material hardly affects the way the light diffusion plate shines.

  Moreover, the illuminating device of this invention is provided with one of the said structures, The said light diffusing plate is formed ranging between two circular holes into which the said connection material penetrates, and both circular holes. It is desirable to have a slit.

  According to the lighting device having such a configuration, the light diffusing plate can be detachably attached to the pipe material without using an attachment method such as screwing to the pipe material. When a mounting method such as screwing is used, there is a possibility that a member such as a screw may affect how the light diffusing plate shines. However, according to this lighting device, such a concern is solved.

Further, the lighting device of the present invention has any one of the above-described configurations, and at least one end portion of the connection member is formed into a bamboo basket shape, and the end portion is press-fitted into a connection hole formed in the light-emitting body attachment member. It is desirable that

According to the illuminating device having such a configuration, for example, it becomes easy to connect a connecting member having a very small diameter to a light emitter mounting member made of an extremely thin plate material, and the decorativeness or design of the device can be improved.

  The lighting stand of the present invention comprises any one of the above lighting devices as a lamp.

  According to the lighting stand having such a configuration, the same operational effects as those of the lighting device described above can be obtained.

  ADVANTAGE OF THE INVENTION According to this invention, the illuminating device and the illumination stand which were excellent in the decorating property of the artificial flower part which light-emits, unexpectedness, etc. can be provided.

It is the figure which looked at the lighting stand from the side. It is the figure which looked at the illuminating device from the top. It is the figure which looked at the illuminating device from the bottom. It is the figure which looked at the pseudo petal and the pseudo flower core part from the side. However, only one pseudo petal is shown, and other pseudo petals are not shown. It is a figure which shows the electric circuit structure of an illuminating device. However, the illustration of the light diffusing plate is omitted. It is the photograph which light-emitted the light-emitting body of the illuminating device in the dark room, and was photographed. It is the figure which arranged and showed the pseudo petal which concerns on embodiment of this invention, and the pseudo petal which concerns on the modification.

  Hereinafter, a lighting device and a lighting stand according to embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a tabletop lighting stand 200 provided with a lighting device 100 according to an embodiment of the present invention.

  As shown in FIGS. 1-3, the illuminating device 100 is mainly comprised by the some pseudo petal 10, the one pseudo flower core part 20, the some pipe material (connection material) 30, etc. FIG. As the lighting stand 200, in addition to the lighting device 100, a pedestal 40, a column 50, an arm 60, and the like are provided.

  As shown in FIGS. 2 and 3, the pseudo petals 10 simulate the shape of a petal, and a plurality (nine in the illustrated example) are arranged around the pseudo flower core portion 20 at equal intervals. Yes. Each pseudo petal 10 includes a light emitter 11, a light emitter attachment member 12, a light diffusion plate 13, and the like, and is arranged radially with the light irradiation direction of the light emitter 11 facing the same side.

  In this embodiment, an LED is used as the light emitter 11. The light emitter 11 is fixed to one surface of a light emitter mounting member 12 described later. Although the kind of LED to be used is not specifically limited, For example, the thing of 1W-3W can be used, and the thing of 3W is used in this embodiment. With this degree of LED, there is less need for heat dissipation measures than a higher power LED, and the size of the pseudo petal 10 (particularly, the light emitter mounting member 12) can be made thinner and smaller. As a result, the width and flexibility of the appearance design of the lighting device 100 and the lighting stand 200 are expanded. Further, by driving a 3 W LED at about 1 W, even a small-sized light emitter mounting material (heat sink) 12 can sufficiently dissipate heat. When a 3 W LED is driven at about 1 W, the light emission efficiency is improved, and if there are several LEDs, a sufficient amount of light can be obtained as a desk lamp. In addition to the LED, an organic EL or the like can be employed as the light emitter 11.

  All the light emitters 11 are connected in parallel to each other via a resistor 71 and are configured to be fed with a direct current or a modulated pulse current. In addition, a conductive material is used for the pipe material 30 and the arm portion 60, etc., which become the structure, and also serves as a negative electrode, and as shown in FIG. The inside of the cavity of the part 60 is inserted. In this way, if all the light emitters 11 and the battery are connected in parallel and supplied with power, the diameter of the wire inserted through the pipe member 30 can be reduced as compared with the case where the same light quantity is obtained by adopting series connection. As a result, the inner and outer diameters of the pipe material 30 to be used can be reduced.

  The optical axis of all the light emitters 11 (the direction in which the light is the strongest among the diffused light) is a vertical line E passing through the center of the pseudo flower core portion 20 downward as indicated by an arrow A in FIG. It is inclined to the side (for example, the inclination angle with respect to the vertical line E is set to about 5 °). By setting the optical axis of the light emitter in this manner, even if there is a gap between the light diffusing plate 13 and the light emitter mounting member 12, it leaks from the gap and is reflected on the surface of the light diffusing plate 13. It is possible to prevent the light from being viewed directly.

  In the present embodiment, the light emitter mounting member 12 is a plate heat sink that dissipates heat generated from the light emitter 11. As the light emitter mounting member 12, a material made of an aluminum substrate (for example, having a plate thickness of 1.6 mm to 2.0 mm) is used. As the light emitter mounting member 12 shown in FIGS. 2 and 3, a substantially star-shaped member is used for decoration purposes. In addition, as the light emitter mounting member 12, a copper plate having a thermal conductivity superior to that of aluminum may be used. When the light emitter 11 that does not require heat dissipation is employed, a general glass epoxy substrate or the like can be used as the light emitter attachment member 12. Moreover, you may employ | adopt the structure of inserting | pinching and adhering the pipe material 30 with the light-emitting body attachment material 12 and another board | plate material. Furthermore, a structure in which an aluminum heat sink having a relatively large thickness is joined to the pipe member 30 as a structural member, and the surface of the light emitter attachment member 12 on which the light emitter 11 is not attached is bonded to the aluminum heat sink. It may be adopted.

  The light diffusing plate 13 diffuses the light emitted by the light emitter 11 and allows the light diffuser 13 to pass along the light emitter attachment surface of the light emitter attachment material 12 so as to cover the light emitter 11. It is installed. An LED or the like has a small light emitting portion, and even if a light diffusion effect is obtained to some extent with a phosphor encapsulated in an LED element, it behaves like a point light source. When the amount of light is the same, the light from the point light source is considerably stronger than the surface light source, so that afterimages cannot be ignored or the influence on the eyes cannot be ignored. In addition, by providing a plurality of light emitters 11, when a plurality of point light sources respectively emit light, multiple shadows that cause shadows as many as the number of light sources are generated. The light diffusing plate 13 diffuses the light emitted from the point light source (pseudo-spreading the irradiation angle (about 120 °) of the light emitting body 11 such as an LED) to reduce glare when viewing the light source, It also plays a role in reducing the occurrence of multiple shadows. As shown in FIG. 2, the illustrated light diffusing plate 13 forms a maximum width at a predetermined position in the middle portion when viewed from above, and the width increases from the maximum width portion to the base end portion 13c to a certain size. Further, the width is reduced from the maximum width portion toward the tip portion 13d to substantially zero.

  As a material used for the light diffusing plate 13, a plate material in which Japanese paper is sandwiched between two transparent PVC plates can be used. Other materials that can be used for the light diffusing plate 13 include semi-transparent materials (polyvinyl chloride, etc.), and materials with the action of diffusing light by treating the surface of the transparent material (ground glass, textured surface) PET resin, etc.) and those made of opaque materials that are thinly processed to give light transmission properties (such as thinly cut wood).

  The plurality of light diffusion plates 13 extend radially around the pseudo flower core portion 20. Each light diffusing plate 13 is curved so that the surface on the light emitter 11 side is convex when viewed from the direction along the plate surface substantially perpendicular to the radiation direction (see FIG. 4A). . The curvature of the light diffusion plate 13 is greater after the attachment (see FIG. 4A) than before the attachment to the pipe member 30 (see FIG. 4B). That is, the light diffusing plate 13 is elastically curved by an external force when attached, and the light diffusing plate 13 after attachment is given a restoring force. And since the base end part 13c side (refer FIG. 4) of the light diffusing plate 13 is pressed against the side surface of the pseudo flower-core part 20, the front-end | tip part 13d side part rather than the circular hole 13a and the slit 13b is the said decompression | restoration. It is made easy to adhere to the light emitter 11 by force. When the light diffusing plate 13 is in close contact with the light emitting body 11, the optical axis of the light emitting body 11 and the surface of the light diffusing plate 13 are orthogonal to each other, and a more preferable light diffusing effect is obtained.

  The pseudo flower core portion 20 is connected to the tip of an arm portion 60 described later, and supports a plurality of pseudo petals 10 around the pipe material 30 curved in an arc shape. As the shape of the pseudo flower core portion 20, a substantially cylindrical shape, a substantially conical shape, a substantially polygonal column shape or the like is adopted, and these hollow materials and solid materials are properly used as necessary. As shown in the figure, the pseudo flower core portion 20 of the present embodiment is a substantially cylindrical hollow material having a shape whose side surface is slightly inclined downward toward the center.

  The pipe material 30 is provided for each pseudo petal 10 and functions as a connecting material for connecting the light emitter attachment material 12 and the pseudo flower core portion 20. Both ends of the pipe member 30 are press-fitted into connection holes formed in the light emitter attachment member 12 and the pseudo flower core portion 20, thereby preventing the light emitter attachment member 12 and the like from rotating with respect to the pipe member 30. Is done. Further, in order to facilitate the press-fitting, both ends of the pipe material are formed into a bamboo basket shape as shown in FIG.

  In the lighting stand 200, the influence of the design of the light diffusing plate 13 on the overall impression is great. If the design of the light diffusing plate 13 is changed, the impression of the lighting stand 200 can be changed in various ways, so that the taste of various users can be changed. In response, merchantability can be improved. In view of this point, the present embodiment employs a structure in which the light diffusing plate 13 can be easily replaced. Specifically, the light diffusing plate 13 is provided with two circular holes 13a through which the pipe material 30 penetrates and a slit 13b formed between both the circular holes 13a. In attaching the light diffusion plate 13 to the pipe material 30, the pipe material 30 is passed through the slit 13 b of the light diffusion plate 13 from the top to the bottom, and the pipe material 30 is fitted into the two circular holes 13 a of the light diffusion plate 13. . As a result, the two circular holes 13 a grip the pipe member 30 and the light diffusion plate 13 is fastened to the pipe member 30. According to such an attachment structure, the light diffusing plate 13 can be detachably attached to the pipe member 30 without using a method such as screwing or bonding to the pipe member 30, and the decorativeness or design can be improved. Figured.

  As shown in FIG. 1, the illumination stand 200 includes a pedestal 40, a support column 50, an arm unit 60, and the like in addition to the illumination device 100, thereby holding the illumination device 100 at a predetermined height position. Yes. The pedestal 40 is placed on a flat surface such as a desk, and supports the weight of the lighting stand 200 as a whole. The support column 50 is erected in the vertical direction from the upper surface of the pedestal, and accommodates a battery (for example, two AAA batteries arranged side by side vertically), a battery box in which the battery is set, and the like (not shown). doing. The support unit 50 includes a cylindrical cover 52 that can be slid up and down and an internal structure 53 (including the battery and the like). The cover 52 slides upward from the state shown in FIG. The battery or the like can be taken out.

  When the cover 52 of the support column 50 is slid upward, the curved arm unit 60 gets in the way, but in this embodiment, the cover 52 can be slid upward by removing the arm 60 from the support column 50. It has become. That is, the arm portion 60 and the column portion 50 can be inserted and removed. Specifically, as shown in FIG. 1, the female side 51 of the jack is housed inside the column 50, and is inserted into and removed from the male side 61 of the jack installed at the base end of the arm 60 in the vertical direction. Connected as possible. As the jacks 51 and 61, for example, a three-pole stereo jack can be used. As a result, the arm portion 60 can be freely rotated about the axis with respect to the support column 50 while sufficiently obtaining mechanical strength. Electrically, 3 poles can be used, and 2 poles are used as power source + and power source-. In addition, since the arm unit 60 can be attached to and detached from the support column 50, the lighting device 100 and the arm unit 60 can be freely replaced. For example, it is possible to easily replace the LED emission color with a different one or change the design of the lighting device 100 to a different one. Reference numeral 41 denotes a switch for turning on and off the light emitter 11 of the illumination device 100.

  In the lighting stand 200 having the above configuration, when the light emitting body 11 is caused to emit light by operating the switch 41, the light is diffused by passing through the light diffusion plate 13 and illuminates the desk. Even if an LED is used as the light emitter 11, light is sufficiently diffused by the light diffusing plate 13, so that glare when viewing the light source is reduced, and the occurrence of multiple shadows is also reduced.

  Further, the plurality of light diffusion plates 13 extend radially around the pseudo flower core portion 20 and are curved as described above, so that they exit the light emitter 11 and are diffused by the light diffusion plate 13. Part of the light travels in the direction indicated by the arrow C in FIG. 4A and again enters the vicinity of the base end portion 13 c of the light diffusion plate 13. For this reason, as shown in FIG. 6, a state in which the light diffusing plate 13 shines in the vicinity of the pseudo flower core portion 20 and is condensed at the center of the flower is realized. Combined with the light, a light decoration effect with excellent decorativeness and unexpectedness can be obtained. Further, a part of the light of the light emitter 11 passes through the light diffusion plate 13 and leaks from the light diffusion plate 13 in the vicinity of the base end portion 13c, but such light also contributes to the above-described light collection effect with a slight force. ing.

  Further, in the lighting stand 200 according to the present embodiment, all the light emitters 11 and the power source are connected in parallel to supply power, and a power supply wire (plus electrode) for the light emitter 11 is inserted into the pipe member 30. Since the pipe member 30 is also used as a negative pole, the outer diameter of the pipe member 30 can be reduced as compared with the case where the same amount of light is obtained by adopting series connection. As a result, the pipe material 30 becomes inconspicuous, the design is improved, and the light diffused by the light diffusing plate 13 (especially the light traveling in the direction indicated by the arrow C in FIG. 4A) is again on the light diffusing plate 13. It becomes easy to enter the base end part 13c, and the light decoration effect by the said condensing is further improved.

<Modified examples of pseudo petals>
FIG. 7A shows a schematic diagram of the above-described pseudo petal 10, and FIG. 7B shows a pseudo petal 10A according to a modification of the pseudo petal 10. The pseudo petal 10A according to the modified example has a light diffusing plate 13A having a thickness larger than that of the pseudo petal 10 described above, and is provided with a recess 13Ae in a portion where light from the light emitter 11 is incident. As a result, the amount of light that travels through the light diffusion plate 13A in a direction parallel to the surface of the light diffusion plate 13A among the light incident on the concave portion 13Ae increases. This increases the amount of light leaking from the light diffusing plate 13 in the vicinity of the base end portion 13c through the light diffusing plate 13A. Therefore, even if the degree of curvature of the light diffusing plate 13A is small, the light decoration by the light collection is performed. The effect is easily obtained. The detailed shape of the recess 13Ae is not particularly limited as long as it exhibits the above-described effects, but as a specific example, a substantially hemispherical shape, a substantially semicylindrical surface extending in a direction substantially perpendicular to the radial direction. Etc.

  In the above embodiment, the tabletop lighting stand 200 has been described as an example. However, the lighting stand of the present invention is not limited to the tabletop, and can be applied to other lighting stands (for example, a floor stand). is there. Moreover, the illuminating device 100 of this invention is applicable to all the lighting fixtures.

DESCRIPTION OF SYMBOLS 10,10A Pseudo petal 11 Light emitter 12 Light emitter attachment material 13, 13A Light diffusion plate 13a Circular hole 13b Slit 13c Base end part 13d Tip part 20 Pseudo flower core part 30 Pipe material 70 Electric wire 100 Illuminating device 200 Illumination stand

Claims (6)

A light emitter made of LED or organic EL , a light emitter attachment material to which the light emitter is attached, and the light emitter attachment material so as to completely cover the light emitter when viewed from the direction facing the light emitter attachment surface. , a, a light diffusion plate along the light emitter mounting surface disposed in the light emitter mounting member, a plurality of pseudo petals arranged radially,
A pseudo flower core disposed at the center of the plurality of pseudo petals disposed radially;
A connection material connecting the light emitter attachment material and the pseudo flower core portion;
With
Illumination in which the light emitter mounting surfaces of the light emitter mounting materials of the plurality of pseudo petals are directed to the same side, and the light irradiation directions of the plurality of light emitters respectively attached to the light emitter mounting surfaces are directed to the same side apparatus. The lighting device according to claim 1.
The illuminating device, wherein the light diffusing plate is curved so that the surface on the light emitter side is convex when viewed from a direction substantially perpendicular to the radiation direction and along the plate surface. The lighting device according to claim 2,
The light emitters are configured in a circuit so that current is fed by parallel connection to each other,
The connection member is a lighting device in which a conductive pipe material is used to serve as the negative electrode for power supply, and the positive electrode wiring for power supply is inserted into the connection material. The lighting device according to claim 2 or 3,
The said light diffusing plate is an illuminating device which has two circular holes which the said connection material penetrates and fits, and the slit formed between both circular holes. In the illuminating device of any one of Claims 1-4,
An illuminating device in which at least one end portion of the connection material has a bamboo basket shape, and the end portion is press-fitted into a connection hole formed in the light emitter mounting material.   An illumination stand provided with the illuminating device of any one of Claims 1-5 as a lamp body.