JP2013154040A - Illumination display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an illumination display device that can uniform the illuminance of an object for appreciation to which light is applied and suppress the amount of light that leaks outside.SOLUTION: By using specular reflection characteristics in order to uniform illuminance, a cabinet 4 generates outside leak light W that is difficult to be invisible to a user. The generation of the outside leak light W causes the user to extremely dazzle during appreciation, which is unfavorable. As a countermeasure against the outside leak, an LED 2 has predetermined beam characteristics, thereby decreasing specular reflection light. As a further countermeasure, the LED 2 has predetermined beam characteristics and a reflection plate 3 is tilted, thereby improving illuminance by the specular reflection characteristics.

Description

  The present invention relates to an illumination display apparatus that displays objects in an illuminated manner.

  When decorating an appreciation object in a frame or the like, it is possible to enjoy an appreciation by lighting the appreciation object. In that case, there is a way to illuminate the appreciation object by placing a lighting part inside the frame etc. in addition to the method of illuminating the appreciation object from the outside by installing a lighting fixture at a position away from the frame etc. . In the latter case, since it is necessary to illuminate the entire surface of the appreciation object, various configurations have been proposed (see, for example, Patent Document 1).

  This Patent Document 1 has a thick rectangular frame main body, and a front frame plate, an intermediate frame, and a substrate provided with ornaments are laid and fixed in order from the front inside the frame main body. It is a thick rectangular frame having an opening in the center, and a light emitting portion is provided on one inner surface of the frame, and a reflective film is provided on the other three inner surfaces, and a front frame plate, an intermediate frame, and a substrate. A configuration is disclosed in which a light-emitting space surrounded by and is formed, and light emitted from the light-emitting portion is made uniform in the light-emitting space and irradiated to an ornament.

JP 2008-119055 A

  Here, uniformizing the illuminance of the viewing object is an important condition when viewing the viewing object, but other important conditions are also assumed. That is, the viewer visually recognizes the light that illuminates the viewing object, but if the light that illuminates the viewing object leaks and enters directly into the viewer's eyes, the viewer is uncomfortable with the glare. You may be unable to concentrate on watching.

  An object of the present invention is to provide an illumination display device capable of suppressing the amount of light leaking to the outside while making the illuminance uniform of an illuminated appreciation object.

  For this purpose, an illumination display apparatus to which the present invention is applied contains an appreciation object, a casing having a window portion in which the front surface of the appreciation object in the accommodated state can be seen from the outside of the apparatus, and an inside of the casing And an irradiation unit that irradiates light from the side to the front surface of the appreciation object housed in the housing, and is disposed so as to cover the front surface of the appreciation object, and the application object is irradiated A plate-like member having a surface through which light from the irradiating part is transmitted, and the light of the irradiating part is directed from the irradiating part in a direction other than the direction of the appreciation object. The remote position is closer to the appreciation object than the neighboring position close to the irradiation unit and is reflected closer to the irradiation unit, and the irradiation unit is emitted from the irradiation unit and the viewing is performed. The amount of light that leaks outside the device without being irradiated is suppressed. It is characterized in that it has a light distribution characteristic.

Here, the irradiation unit may include a light source and a rod lens having a substantially circular cross section that refracts light of the light source. The irradiation unit may further include a corrugated lens that is positioned between the light source and the rod lens and has an entrance surface and / or an exit surface that are formed in a wave shape along the length direction of the rod lens. Can be characterized. Further, the irradiation unit may further include a light shielding plate that is positioned between the rod lens and the waveform lens and shields an edge of light of the light source incident on the rod lens.
Furthermore, the plate-like member is formed in a flat plate-like shape that is inclined and bent and has a crease portion, and the illumination display device is disposed so as to cover the plate-like member, and the plate-like member A front plate subjected to an antireflection treatment for weakening the presence of the fold portion may be further provided.
Still further, the window portion of the casing has a shape other than a rectangle, and an edge portion of the window portion is formed in a curve, and the irradiating portion is the appreciation object accommodated in the casing. It is characterized by being arranged along the circumference of
Further, the casing includes a first casing section having the window section, a second casing section to which the irradiation section is attached, and a third casing section that holds the appreciation object. It can be characterized by comprising.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to suppress the quantity of the light leaked outside while aiming at the illumination intensity uniform of the appreciation object irradiated.

It is a figure explaining the principal part of the illumination display apparatus which concerns on this Embodiment. It is a figure explaining the principal part of the illumination display apparatus which concerns on this Embodiment. It is a schematic front view of the illumination display apparatus which concerns on this Embodiment. It is a cross-sectional view of the LED module of the lighting display device. It is a figure explaining the effect | action of the rod lens of an LED module. It is a figure explaining the effect | action of the waveform lens of an LED module. It is a figure explaining the light beam radiate | emitted from an LED module. It is a figure explaining the mutual positional relationship of the light of LED, and a housing | casing. It is a figure explaining the illumination intensity at the time of giving the beam characteristic of LED. It is a figure explaining the structure of the housing | casing of an illumination display apparatus. It is a figure explaining the modification of an illumination part. It is a figure explaining various modifications. It is a figure explaining various modifications.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
First, the principle of uniform illuminance used by the lighting display apparatus 1 according to the present embodiment will be described. This lighting display device 1 is a device that displays objects to be accommodated so that they can be seen from the outside by illuminating them with light from an internal light source so as to enhance the visual effect, and is installed on a wall surface or a floor surface. Is.

The object referred to here is an appreciation object that is enjoyed by viewing the displayed state, and examples thereof include a preserved flower in which a fresh flower is treated with a dedicated liquid and the state is maintained. In addition, examples of the object include art objects such as paintings, ornaments such as jewelry, and stuffed animals.
Further, the internal light source here is one that is incorporated in the illumination display device 1 to perform display illumination. For example, an LED (Light Emitting Diode) capable of emitting light with less ultraviolet light, an organic EL, or the like can be given. it can.
By using the lighting display device 1, it is possible to enjoy the effect of light that makes it appear that the appreciation object is raised.

FIG. 1 is a diagram for explaining a main part of an illumination display apparatus 1 according to the present embodiment, (a) and (b) are those of the present embodiment, and (c) is a conventional example. is there. That is, (a) of the figure is a schematic diagram showing one configuration example and a graph showing the mutual relationship between the illuminance (the unit of the vertical axis is lux) and the separation distance (the unit of the horizontal axis is m). (B) of the same figure is a graph which shows the correlation between the reflectance R (the unit of a vertical axis is%) and the incident angle (theta) (the unit of a horizontal axis is degree) of the reflector 3 with which the illumination display apparatus 1 is equipped. It is. (C) of the figure is a figure of the comparative example which is not provided with the reflecting plate 3, and corresponds to (a) of the figure.
As shown to (a) of FIG. 1, the illumination display apparatus 1 consists of LED (Light Emitting Diode) 2 as an example of the internal light source thru | or the internal illumination for illuminating the to-be-irradiated body B which is a target object, and LED2. And a transparent reflector 3 that reflects the light.
The LED 2 is an example of a light source, and the irradiated object B is an example of an appreciation object. Moreover, the reflecting plate 3 is an example of a plate-shaped member, and the inner surface 3a of the reflecting plate 3 is an example of a surface of the plate-shaped member.

The LED 2 is positioned between the irradiated body B and the reflecting plate 3 and is disposed so that light travels through the space between the irradiated body B and the reflecting plate 3. In the present embodiment, the LED 2 that emits white light is used. In this case, the color temperature of light of the LED 2 is, for example, 8800 to 5600 ° K, and more specifically 7200 ° K.
The reflector 3 is disposed so as to cover the irradiated body B. In the present embodiment, a resin plate is used as the reflector 3 for ease of manufacture, but a glass plate may be used.

The light from the LED 2 is directly emitted from the LED 2 to the irradiated object B, and is reflected by the inner surface 3a of the reflecting plate 3 and irradiated to the irradiated object B.
Here, as shown in FIG. 1A, in the present embodiment, the incident angle θ is designed to increase as the distance from the LED 2 increases. The reflecting plate 3 has a specular reflection characteristic. More specifically, as shown in FIG. 1B, the reflecting plate 3 is incident on the plane at a right angle (when the incident angle θ is 0). The reflectance R of 3 is about 4%, but as the incident angle θ increases, the reflectance R of the reflector 3 increases (see the vicinity of the circle indicated by the broken line in FIG. 1B). ). For this reason, the reflectance R is low at a position close to the LED 2, and the reflectance R is high at a position far from the LED 2. That is, the ratio of the light incident on the inner surface 3a of the reflecting plate 3 and reflected toward the irradiated body B is low at a position close to the LED 2 and high at a position far from the LED 2. In other words, at a position far from the LED 2, the amount of light that passes through the reflecting plate 3 and leaks out from the outer surface 3b of the reflecting plate 3 is extremely small.

  More specifically, the illuminance of light directly irradiating the irradiated object B or light incident on the inner surface 3a of the reflector 3 is inversely proportional to the square of the distance from the LED 2. That is, a large difference occurs in the illuminance between the vicinity Bn of the irradiated object B near the LED 2 and the remote part Bf of the irradiated object B far from the LED 2. However, although the amount of light decreases at a position far from the LED 2, the reflectance R of the reflecting plate 3 increases as described above. Therefore, the light of the LED 2 is almost reflected by the inner surface 3 a of the reflecting plate 3 and the irradiated object B Irradiate.

Thus, in the present embodiment, the difference in illuminance between the vicinity Bn of the irradiated object B and the remote part Bf of the irradiated object B is reflected on the light of the LED 2 by the reflecting plate 3 having specular reflection characteristics. This is improved by adopting a configuration in which the irradiated object B is irradiated. Note that the illuminance refers to that expressed in luminous flux per unit area.
The vicinity portion Bn of the irradiation object B is an example of the vicinity position, and the remote portion Bf of the irradiation object B is an example of the remote position.

More specifically, in the comparative example shown in FIG. 1C, the reflector 3 is not provided. Therefore, the illuminance of the irradiated object B is significantly lowered as the distance from the LED 2 increases, and the irradiated object is irradiated with the light from the LED 2. It becomes difficult to brightly illuminate B, and it becomes dark.
On the other hand, in the present embodiment, as shown in FIG. 1A, the reflected light of the reflecting plate 3 is used, so that the illuminance of the irradiated object B that decreases according to the distance from the LED 2 is reduced. It becomes possible to compensate, and it becomes possible to make the illuminance uniform.
In addition, since the light from the LED 2 does not reach the back side of the irradiated body B sufficiently, and the back side of the irradiated body B is not illuminated, the front side of the irradiated body B illuminated brightly by the light of the LED 2 The side is more visually enhanced.

FIG. 2 is a diagram for explaining a main part of the lighting display apparatus 1 according to the present embodiment, (a) and (b) are those of this embodiment, and (c) is a conventional example. is there. Each of (a) to (c) in the figure is a schematic diagram showing a configuration example and a graph showing the interrelationship between illuminance and separation distance, and corresponds to (a) in FIG. .
2A and 2B show a case where different configurations are employed. It is conceivable to employ the configuration example shown in FIG. 2A or the configuration example shown in FIG. 2B instead of the configuration example shown in FIG. That is, the configuration example shown in FIG. 2A and the configuration example shown in FIG. 2B are intended to further improve the uniformity of illuminance than in the case of FIG.

In the configuration example shown in FIG. 2A, the LEDs 2 are arranged to face each other. That is, one LED 2 emits light in the direction of the other LED 2, and the other LED 2 emits light in the direction of one LED 2.
With this configuration, as is clear from the combined illuminance (illustrated by a two-dot chain line) obtained by synthesizing the illuminance (illustrated by a solid line) by one LED 2 and the illuminance (illustrated by a broken line) by the other LED 2, It is possible to secure the illuminance of the portion Bc (remote portion Bf (see FIG. 1)).

In the configuration example shown in FIG. 2 (b), the LEDs 2 are arranged so as to face each other as in the configuration example shown in FIG. 2 (a), and further, at the position of the central portion Bc of the irradiated body B. The reflector 3 bent in a U-shape is disposed. That is, the reflecting plate 3 is inclined with a certain inclination angle α in the direction approaching the irradiated body B as the distance from the LED 2 increases. When the surface of the irradiated body B is flat, the reflector 3 is closest to the irradiated body B at the position of the central portion Bc of the irradiated body B.
With this configuration, although the incident angle θ (see FIG. 1B) at which the light of the LED 2 is incident on the inner surface 3 a of the reflecting plate 3 is reduced, the amount of light incident on the inner surface 3 a of the reflecting plate 3 is increased. For this reason, as is clear from the combined illuminance shown in FIG. 2B (illustrated by a two-dot chain line), the illuminance of the central portion Bc of the irradiated object B is secured more than in the case shown in FIG. Is possible.

  In the comparative example shown in FIG. 2C, since there is no reflector 3, even if the LEDs 2 are arranged so as to face each other, as is clear from the combined illuminance (shown by a two-dot chain line), It is difficult to ensure the illuminance of the central portion Bc of the irradiation body B.

Next, a more specific configuration of the lighting display apparatus 1 according to the present embodiment will be described. In addition, the drawing used for description of the lighting display apparatus 1 shows a configuration example as an example.
FIG. 3 is a schematic front view of the lighting display apparatus 1 according to the present embodiment, and shows an example thereof.
As shown in FIG. 3, the lighting display device 1 includes a housing 4 and an LED module 5 that is built in the housing 4 and has a plurality of LEDs 2. The number of LED modules 5 may be 1 to 4 depending on the size of the housing 4.
More specifically, in the present embodiment, four LED modules 5 are arranged so as to surround the four sides of the irradiated object B (see FIG. 1 or FIG. 2). Each of the four LED modules 5 irradiates light toward the irradiated object B. The LED module 5 is an example of an irradiation unit.

The lighting display apparatus 1 also includes a power supply unit 6 that supplies power to the LED module 5 and a control circuit or control unit (not shown) that performs various controls such as dimming. The power supply unit 6 converts AC 100V into 24V, for example, and supplies 70 mA, for example. The electric power from the power supply unit 6 is sequentially supplied via a connector (not shown) that connects adjacent LED modules 5 to each other. In other words, the connection content shown in FIG. 3 is merely an example, and other connection content may be adopted. Further, in the present embodiment, a configuration in which the power supply unit 6 and the control unit (not shown) are disposed outside the lighting display device 1 is employed, but a configuration in which these are built in the lighting display device 1 may be employed. Conceivable.
In this embodiment, a configuration in which power is supplied by wire is adopted, but a configuration in which power is supplied by non-contact can also be adopted. Moreover, the structural example provided with the battery which can store electricity temporarily in the inside of the lighting display apparatus 1 is also considered.

  The size of the window portion K of the illumination display device 1 is designed in accordance with the size of the irradiated object B, and may be a standard size, for example. More specifically, the size of the window portion K is set to A1 size (841 mm × 594 mm), A2 size (594 mm × 420 mm), A3 size (420 mm × 297 mm), A4 size (297 mm × 210 mm), A5 size (210 mm). × 148 mm).

  And when the magnitude | size of the window part K is A1 size, for example, 108 LED2 is arrange | positioned at the LED module 5 arrange | positioned at a long side, and the LED module 5 arrange | positioned at a short side includes For example, 77 LEDs 2 are arranged. A total of 370 LEDs 2 are used, and the power consumption of the LEDs 2 in this case is 5.6 W when the LED current is 5 mA. Further, when the size of the window portion K is A5 size, for example, 24 LEDs 2 are disposed in the LED module 5 disposed on the long side, and the LED module 5 disposed on the short side includes For example, 18 LEDs 2 are arranged. A total of 84 LEDs 2 are used, and the power consumption of the LEDs 2 in this case is 1.3 W when the LED current is 5 mA. Thus, the power consumption of the LED 2 is extremely low, and it is possible to suppress an increase in temperature inside the lighting display apparatus 1 due to the LED 2. The light of the LED 2 has a lower amount of ultraviolet light than that of a general fluorescent lamp, and therefore, fading of the irradiated object B can be suppressed.

FIG. 4 is a cross-sectional view of the LED module 5 of the lighting display apparatus 1 and shows an example thereof.
As shown in FIG. 4, the LED module 5 includes module main bodies 51 and 52 that hold the LEDs 2, a plate-like corrugated lens 7 that is held by the module main bodies 51 and 52, and a circle that is held by the module main bodies 51 and 52. And a columnar rod lens (round rod lens) 8. The LED module 5 is attached to the housing 4 (see FIG. 3).
Both the corrugated lens 7 and the rod lens 8 are located on the light emitting side of the LED 2 and refract the light of the LED 2. The corrugated lens 7 is located between the LED 2 and the rod lens 8. The corrugated lens 7 is separated from the rod lens 8. The LED 2 includes a lead type and a surface mount type.

FIG. 5 is a diagram for explaining the operation of the rod lens 8 of the LED module 5. 5A and 5B are cross-sectional views of the rod lens 8 of the LED module 5. FIG. 5C is a cross-sectional view of a cylinder lens 101 as a comparative example. In FIGS. 5A and 5B, the waveform lens 7 is not shown.
As shown in FIGS. 5A and 5C, a rod lens 8 (see (c) in FIG. 5) is not a semicircular cylinder lens 101 (see (c) in FIG. 5), but a transverse lens having a substantially circular shape. By adopting a), the distance between the light source (LED 2) and the lens (rod lens 8) becomes closer. For this reason, in the case of the rod lens 8, the scattering range D of the lens surface is narrowed, and the range A in which the external leakage light (see the symbol W shown in FIG. 8A) is visible from the outside is also narrowed. Further, the rod lens 8 contributes to the downsizing of the LED module 5.
Thus, by adopting the rod lens 8 in the present embodiment, it becomes possible to improve the leakage of light to the outside.

  It is possible to further improve the leakage light. That is, as shown in FIG. 5 (b), when the configuration in which the light shielding plates 91 and 91 ′ are disposed in the vicinity of the rod lens 8 of the housing 4, the range A in which the leaked light is visible from the outside is further narrowed. Is possible.

FIG. 6 is a diagram for explaining the operation of the waveform lens 7 of the LED module 5. 6A is a plan view of the LED 2, the corrugated lens 7 and the rod lens 8, FIG. 6B is a front view thereof, and FIG. 6C is a right side view thereof (viewed from the rod lens 8 side). FIG. 6D is a right side view of a comparative example that does not include the corrugated lens 7 and corresponds to FIG.
As shown in FIG. 6A, the corrugated lens 7 has an incident side surface (left surface in FIG. 6A) on which light from the LED 2 is incident and an exit side surface on which light from the LED 2 is emitted. The surfaces (the right surface in (a) of the figure) are formed to have different shapes. More specifically, the incident-side surface of the corrugated lens 7 is formed in a wave shape in plan view along the length direction of the rod lens 8 or the corrugated lens 7 (the vertical direction in FIG. . In addition, the exit side surface of the corrugated lens 7 is flat. In addition, it is preferable to form the wave-like surface on the incident side of the corrugated lens 7, but it is also conceivable to form the wave-like surface on the light-emitting side instead of the wave-like surface on the incident side. Furthermore, it is also conceivable to form the wave-like surface of the corrugated lens 7 on the entrance side and the exit side. In this case, regarding the relative positional relationship between the wave shape on the incident side surface and the wave shape on the output side surface, for example, when the wave shape is formed so that there is no phase difference, the phase difference is It is also conceivable to form a wave shape. Although not shown, a configuration example in which the LED 2, the rod lens 8, and the waveform lens 7 are arranged in this order, that is, a configuration example in which the rod lens 8 is disposed between the LED 2 and the waveform lens 7 is also conceivable.
FIG. 6B corresponds to FIG. 4 and will not be described.

When the corrugated lens 7 is viewed from the rod lens 8 side, as shown in FIG. 6C, the number of brightly shining portions (see the hatched area shown in FIG. 6C) is larger than the number of LEDs 2. It has become. Specifically, while there are three LEDs 2, there are seven portions that shine brightly by the corrugated lens 7.
More specifically, in the case of the comparative example that does not include the corrugated lens 7, as shown in FIG. 6D, the light of the three LEDs 2 can be directly seen (see the hatched area shown in FIG. 6D). ), The particle feeling of LED2 becomes conspicuous.

With such a corrugated lens 7, the light from the LED 2 is expanded in the length direction of the corrugated lens 7, preventing the particle feeling of the LED 2 and changing the light beam into a horizontally wide type by selecting the size. It becomes possible.
In other words, the corrugated lens 7 can make the LED 2 difficult to recognize from the outside (improvement of irradiation feeling) and increase the beam angle in the plane direction (horizontal direction) to obtain illuminance uniformity. Is possible. In other words, by improving the irradiation feeling, the product quality can be maintained even when the light from the LED 2 leaks to the outside.

FIG. 7 is a diagram illustrating a light beam emitted from the LED module 5.
As shown in FIG. 7, in the LED module 5, light shielding plates 92 and 93 are disposed between the waveform lens 7 and the rod lens 8. The light shielding plate 92 is used for cutting the upper edge, and contributes to improvement of the cutting of the upper fringe of the light beam. The light shielding plate 93 is used for cutting the lower edge, and improves the wave pattern of the corrugated lens 7 from leaking to the outside.
And the illumination intensity by LED2 becomes higher in the part P1 used for specular reflection, and becomes lower in the part P2 used for near irradiation. For this reason, it is possible to improve the specular reflection effect.

FIG. 8 is a diagram for explaining the mutual positional relationship between the light of the LED 2 and the housing 4. (A) of FIG. 8 is a figure which shows the principal part of the lighting display apparatus 1, (b) And (c) is a figure of the structure which took the external leakage countermeasure of the light of LED2.
In the present embodiment, since the specular reflection characteristic is used to make the illuminance uniform, as shown in FIG. Light W is generated. The generation of the external leakage light W is not preferable for the viewer because it is very dazzling during viewing.

As a countermeasure against such external leakage, for example, as shown in FIG. 5B, the LED 2 has beam characteristics to reduce external leakage light. As a further countermeasure, for example, as shown in FIG. 5C, the LED 2 is given a predetermined beam characteristic and the reflecting plate 3 is inclined.
As described above, it is possible to make the illuminance uniform by providing the LED 2 with a predetermined beam characteristic, but it is possible to further improve the illuminance by the specular reflection characteristic by further inclining the reflector 3. become.

Here, the illuminance when the LED 2 has predetermined beam characteristics (directivity characteristics, light distribution characteristics) (see FIGS. 8B and 8C) will be described.
9A and 9C are diagrams for explaining the illuminance when the beam characteristics of the LED 2 are given, and FIGS. 9A and 9C are cases where the beam angle (illuminance half-value angle) of the LED 2 is about 5 degrees. b) and (d) are cases where the beam angle (illuminance half-value angle) of the LED 2 is 15 degrees. (A) and (b) of the figure include a graph showing the mutual relationship between the illuminance (the unit of the vertical axis is lux) and the separation distance (the unit of the horizontal axis is m), (D) is a graph which shows the relationship between the plane position in the to-be-irradiated body B, and illumination intensity (the unit of a vertical axis | shaft is a lux), and has shown the measurement result measured by the magnitude | size of A4 size. In addition, illustration of the light of LED2 in (a) and (b) is only on the irradiated object B side (lower side in the figure), and the illustration on the opposite side (upper side in the figure) is omitted. The irradiated light distribution side B and the opposite side have the same light distribution.
In the front lighting in which the LED 2 is disposed on the side surface, the vicinity Bn of the irradiated object B near the LED 2 is bright and the remote part Bf of the irradiated object B far from the LED 2 is dark. For this reason, in this Embodiment, LED2 is given beam characteristics, and the substantially uniform illumination intensity which does not depend on the distance from LED2 is obtained.

More specifically, as shown in FIGS. 9B and 9D, when the beam angle (half-value illuminance half-angle) of the LED 2 is 15 degrees, the neighboring portion Bn is very bright while the remote portion Bf It is very dark and its illuminance is very uneven. On the other hand, as shown in FIGS. 9A and 9C, when the beam angle (illuminance half-value angle) of the LED 2 is about 5 degrees, the illuminance is uniform in the vicinity portion Bn and the remote portion Bf. It has become a thing. In addition, the illuminance at the remote portion Bf is approximately 160 lux when the beam angle of the LED 2 is 15 degrees, and is approximately 180 lux when the beam angle of the LED 2 is approximately 5 degrees.
The directivity refers to the ratio of the luminous intensity seen from the direction inclined by θ with respect to the light source when the on-axis luminous intensity on the LED 2 is 100%, and the angle at which the luminous intensity ratio is 50%. This is called the half-value angle (1 / 2θ).

FIG. 10 is a diagram illustrating the structure of the housing 4 of the lighting display device 1.
As shown in FIG. 10, the housing 4 is configured by combining a plurality of members. That is, the casing 4 is formed with a window K at a substantially central portion, and a front panel 41 located on the front surface of the lighting display apparatus 1 and an LED module 5 (see, for example, FIG. 3 and FIG. 4) are attached to the casing 4. A portion (lighting module) 42 and a housing portion (exhibition box) 43 for housing the irradiated object B (see, for example, FIG. 1). And the housing | casing 4 is completed by assembling these front panel parts 41, the illumination part 42, and the accommodating part 43. FIG. In a state where the housing 4 is completed, the viewer cannot directly touch the irradiated object B housed in the housing portion 43. More specifically, the constituent members are sealed with each other. For this reason, the irradiated object B accommodated in the accommodating portion 43 is protected from ultraviolet rays and dust by the casing 4.
Thus, the housing 4 employs a three-piece structure as shown in FIG. In addition, although the reflecting plate 3 (for example, refer FIG. 1) is arrange | positioned in the illumination part 42, the structural example arrange | positioned in the front panel part 41 is also considered.
The front panel unit 41 is an example of a first housing unit, the illumination unit 42 is an example of a second housing unit, and the housing unit 43 is an example of a third housing unit. It is.

More specifically, as the front panel unit 41, any one of the front panel units 41a and 41b having different external shapes can be selected. Moreover, it is possible to select any of the accommodating portions 43a and 43b having different external shapes as the accommodating portion 43.
In this way, a wide variety of variations corresponding to the needs of the user or the viewer can be prepared in advance, so that a free combination configuration can be obtained. Therefore, it is possible to propose an optimal one corresponding to the place where the lighting display device 1 is installed, the type of appreciation object, the taste of the viewer or user, and the like.
Note that the options of the front panel unit 41, the illumination unit 42, and the housing unit 43 shown in FIG. 10 are merely examples, and it is conceivable to set more options.

Next, various modifications according to the present embodiment will be described.
First, various modifications of the illumination unit 42 (see FIG. 10) of the housing 4 will be described. FIG. 11 is a diagram for explaining a modification of the illuminating unit 42. FIG. 11A is a front view and a bottom view showing one modification, and FIG. 11B is a front view showing another modification. It is a bottom view, (c) is a front view and a bottom view showing still another modification.
In the modification shown in each of FIGS. 11A to 11C, the shape of the illumination unit 42 is not a pair of left and right or top and bottom, but a circular or non-separable shape. It is possible to obtain uniform internal illuminance with such a non-paired shape.
More specifically, the illumination unit 42 has a circular shape in (a) of FIG. 11, an elliptical shape in (b), and a heart shape in (c). Thus, the modification shown to each of (a)-(c) of FIG. 11 is a shape where the shape of the window part K was shapes other than a rectangle, and the edge part was formed with the curve. The illumination unit 42 is disposed along the periphery of the irradiated object B accommodated in the housing 4.
The shape of the window K of the front panel 41 is not particularly limited by the shape of the illumination unit 42 of the housing 4.

FIG. 12 is a diagram for explaining various modifications. (A) of the figure is the schematic which shows one modification, (b) is the schematic which shows another modification, (c) is the schematic which shows another modification.
In the modification shown in FIG. 12A, the flat reflector 3 is disposed so as to be uniformly inclined. In the modification shown in FIG. 12B, the curved reflector is used. 3 and the specular reflection illuminance of the specific portion Bx of the irradiated body B is increased. That is, since the reflection directionality of the light of the LED 2 is determined by the degree of curved surface of the reflecting plate 3, it is balanced with the light that directly illuminates the irradiated object B without being reflected.
As described above, when the specular reflection characteristic of the resin is used for uniform illumination, the curved surface of the reflector 3 is set so that the total light amount of the direct light and the reflected light becomes an appropriate characteristic.

Here, in the modification shown in FIG. 12C, the inner surface 3a of the reflecting plate 3 is subjected to ultraviolet ray prevention treatment, and the inner surface 94a of the transparent plate 94 positioned outside the reflecting plate 3 and the rod lens 8 are also applied. Similarly, UV protection is applied. In addition, the ultraviolet-ray prevention process can utilize the method used conventionally. The transparent plate 94 is an example of a front plate.
If it demonstrates in detail, in order to prevent the fading etc. of the to-be-irradiated body B, it may have to consider so that the to-be-irradiated body B may not be irradiated with an ultraviolet-ray. As described above, the LED 2 that contains almost no ultraviolet rays is employed as the internal light source. In such a case, a configuration in which ultraviolet rays do not enter from the outside is also employed.
In order to prevent such intrusion of ultraviolet rays from the outside, in the modification shown in FIG. 12C, light from outside is obtained by applying ultraviolet ray prevention treatment to the inner surface 3a of the reflecting plate 3 and the inner surface 94a of the transparent plate 94. By removing the ultraviolet rays from the surface of the rod lens 8 and applying an ultraviolet ray prevention treatment to the surface of the rod lens 8, it is possible to cope with the case where the LEDs 2 contain ultraviolet rays.

In the modification shown in FIG. 12C, the inner surface 3a and the outer surface 3b of the reflecting plate 3 are subjected to antireflection treatment, and the inner surface 94a and the outer surface 94b of the transparent plate 94 are also subjected to antireflection processing. Such an antireflection treatment can use a conventionally used method.
More specifically, in the reflector 3 shown in FIG. 12C, the crease portion 3 c bent in a U shape is positioned at the central portion Bc of the irradiated body B. Such a fold portion 3c is provided for the purpose of uniform illuminance, but it is conspicuous when viewing the irradiated object B, which is not preferable. Therefore, by applying an antireflection treatment to the inner surface 3a and outer surface 3b of the reflecting plate 3 and the inner surface 94a and outer surface 94b of the transparent plate 94, the presence of the fold portion 3c can be weakened (thinned). In other words, depending on the design conditions, the number of surfaces subjected to antireflection treatment may be reduced.

FIG. 13 is a diagram for explaining various modifications.
The modification shown in FIG. 13 is used when the edge of the housing 4 is narrowed. The LED module 5 of the illumination display device 1 includes a mirror plate 95 that reflects the light refracted by the rod lens 8 in the direction of the reflection plate 3.
In addition, the housing | casing 4 of the illumination display apparatus 1 is comprised by the front panel part 41, the illumination part 42, and the accommodating part 43 as mentioned above.

Although illustration is omitted, other modified examples are also conceivable. For example, in addition to the above-described wireless power feeding, on / off of light emission of the LED 2 of the LED module 5 based on the detection result of a human sensor (not shown) that detects that the viewer is in the vicinity of the lighting display device 1. Variations that perform control are also conceivable. Moreover, the modification which controls the light emission amount of LED2 of the LED module 5 based on the detection result of the illumination intensity sensor (not shown) which detects the illumination intensity around the illumination display apparatus 1 is also considered.
In addition, the lighting display apparatus 1 includes a speaker and a storage unit for storing data of sound output from the speaker so that desired sound flows from the speaker, and instructions to the lighting display apparatus 1 (for example, LED 2 For example, a modification in which the light emission is turned on / off or the sound output is turned on / off by operating a remote controller can be considered.
Note that a configuration example applied to the present embodiment by appropriately combining the above-described modified examples is also conceivable.

As described above, the illumination display device 1 according to the present embodiment makes the illuminance uniform by the specular reflection characteristics of the reflector 3. That is, in the front lighting in which the LED 2 is arranged on the side surface, the area close to the light source is bright and the distant area is dark. To solve this problem, the LED 2 has a beam characteristic and does not depend on the distance from the LED 2. I get illuminance.
Furthermore, various configurations for suppressing the amount of external leakage light W emitted from the LED 2 and leaking outside without being irradiated on the irradiated body B are used to ensure product quality.

DESCRIPTION OF SYMBOLS 1 ... Lighting display apparatus, 2 ... LED, 3 ... Reflection board, 3a, 94a ... Inner surface, 3b, 94b ... Outer surface, 3c ... Crease part, 4 ... Housing | casing, 41, 41a, 41b ... Front panel part, 42 ... Illumination Part, 43, 43a, 43b ... housing part, 5 ... LED module, 51, 52 ... module main body, 6 ... power supply part, 7 ... corrugated lens, 8 ... rod lens, 91, 91 ', 92, 93 ... light shielding plate, 94: Transparent plate, A: Range visible from outside, B: Object to be irradiated, Bc: Central portion, Bn: Near portion, Bf: Remote portion, Bx: Specific portion, D: Scattering range, K: Window portion, R ... Reflectance, W ... External leakage light, α ... tilt angle, θ ... incident angle

For this purpose, an illumination display apparatus to which the present invention is applied contains an appreciation object, a casing having a window portion in which the front surface of the appreciation object in the accommodated state can be seen from the outside of the apparatus, and an inside of the casing And an irradiation unit that irradiates light from the side to the front surface of the appreciation object housed in the housing, and is disposed so as to cover the front surface of the appreciation object, and the application object is irradiated A plate-like member having a surface through which light from the irradiating part is transmitted, and the light of the irradiating part is directed from the irradiating part in a direction other than the direction of the appreciation object. The remote position is closer to the appreciation object than the neighboring position close to the irradiation unit and is reflected closer to the irradiation unit, and the irradiation unit is emitted from the irradiation unit and the viewing is performed. The amount of light that leaks outside the device without being irradiated is suppressed. Have a light distribution characteristic, the irradiation unit includes a light source, a cross section substantially circular rod lens for refracting the light of the light source, positioned between said light source and said rod lens, the length of the rod lens And a corrugated lens having an entrance surface and / or an exit surface formed in a wave shape along the direction .

Here, the irradiation unit may further include a light shielding plate that is positioned between the rod lens and the corrugated lens and shields an edge of light of the light source incident on the rod lens. .
Furthermore, the plate-like member is formed in a flat plate-like shape that is inclined and bent and has a crease portion, and the illumination display device is disposed so as to cover the plate-like member, and the plate-like member A front plate subjected to an antireflection treatment for weakening the presence of the fold portion may be further provided.
Still further, the window portion of the casing has a shape other than a rectangle, and an edge portion of the window portion is formed in a curve, and the irradiating portion is the appreciation object accommodated in the casing. It is characterized by being arranged along the circumference of
Further, the casing includes a first casing section having the window section, a second casing section to which the irradiation section is attached, and a third casing section that holds the appreciation object. It can be characterized by comprising.
The plate-like member may be a flat plate that is not bent and is uniformly inclined. Furthermore, the light source of the irradiating unit may have a beam characteristic that reduces the amount of light leaking outside the apparatus.

Claims (7)

A housing having a window part that accommodates an appreciation object, and the front surface of the appreciation object in the accommodated state is visible from the outside of the device;
An irradiation unit that is located inside the housing and irradiates light from the side to the front surface of the appreciation object accommodated in the housing;
A plate-like member that is disposed so as to cover the front surface of the appreciation object and has a surface that transmits light of the irradiation unit irradiated on the appreciation object;
With
The surface of the plate-like member reflects light from the irradiation unit that is directed from the irradiation unit in a direction other than the direction of the appreciation object so as to be directed to the direction of the appreciation object, and is in the vicinity of the irradiation unit. The remote location far from the irradiation unit is closer to the appreciation object,
The illumination display device according to claim 1, wherein the irradiation unit has a light distribution characteristic in which an amount of light emitted from the irradiation unit and leaked to the outside of the device without being irradiated on the appreciation object is suppressed.   The illumination display apparatus according to claim 1, wherein the irradiation unit includes a light source and a rod lens having a substantially circular cross section that refracts light from the light source.   The irradiation unit further includes a corrugated lens that is positioned between the light source and the rod lens and has an entrance surface and / or an exit surface formed in a wave shape along the length direction of the rod lens. The illumination display device according to claim 2.   The said irradiation part is located between the said rod lens and the said waveform lens, and further contains the light-shielding plate which light-shields the edge of the light of the said light source which injects into the said rod lens. Lighting display device. The plate-like member is formed in a flat plate-like shape that is inclined and bent and has a crease portion,
The illumination display device further includes a front plate that is disposed so as to cover the plate-like member and that has been subjected to an antireflection treatment that weakens the presence of the fold portion of the plate-like member. 5. The lighting display device according to any one of items 4 to 4. The window portion of the housing has a shape other than a rectangle and an edge portion of the window portion formed by a curve.
The illumination display device according to claim 1, wherein the irradiation unit is disposed along the periphery of the appreciation object accommodated in the housing.   The casing includes a first casing section having the window section, a second casing section to which the irradiation section is attached, and a third casing section that holds the appreciation object. The illumination display device according to claim 1, wherein the illumination display device is a display device.

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