JP6240492B2 - Decorative lighting equipment - Google Patents

Description

  The present invention relates to a decorative lighting device that gives a dynamic effect to an image projected on a screen by sequentially lighting a plurality of LEDs.

  For example, a decorative lighting device is used for various effects in a game machine, an amusement, and the like. As this type of decorative lighting device, Patent Document 1 proposes a decorative lighting device shown in FIG.

  That is, FIG. 9 is a longitudinal sectional view of the decorative illumination device proposed in Patent Document 1, and in the illustrated decorative illumination device 101, a plurality of ring-shaped convex portions are formed on the inner peripheral surface of the bottomed cylindrical case 102. 103, 104, 105, 106 are provided, and a screen 107, light-shielding bodies 108, 109, and a bottom plate 110 are supported on the convex portions 103, 104, 105, 106, respectively.

  The light shields 108 and 109 can be driven to rotate in opposite directions by the motors 111 and 112 to have a relatively moving relationship. The light shields 108 and 109 have a large number of light-transmitting parts (non-transparent parts). Are provided).

  The bottom plate 110 is provided with light sources 113 and 114 such as annular fluorescent lamps, and light emitted from the light sources 113 and 114 is transmitted through the annular light transmission plate 115 and the star-shaped light transmission plate 116. Then, the light is irradiated upward in FIG. A dome-shaped protective body 117 is attached to the opening of the case 102.

  Thus, when one of the light sources 113 and 114 is turned on and the light shields 108 and 109 are rotated in opposite directions by the motors 111 and 112, a star-shaped or annular light spot appears on the screen 107, and these are rotated. Flashes in various directions while moving. Thus, as a result of the light from the light sources 113 and 114 being projected onto the screen 107 with the action of blinking and blinking, an interesting visual effect is obtained and the display effect is enhanced.

Japanese Patent Laid-Open No. 61-078002

  However, in the decorative lighting apparatus 101 shown in FIG. 9 proposed in Patent Document 1, the light sources 113 and 114 and the screen 107 are fixed, so that an image projected on the screen 107 can be moved. The light shields 108 and 109 need to be rotated by the motors 111 and 112, respectively, to change the position of the translucent part. For this reason, the motors 111 and 112 as drive sources are required, and there is a problem that the cost is increased and installation space and power consumption are increased.

  The present invention has been made in view of the above-mentioned problems, and the object of the process is to obtain the dynamic effect of the image projected on the screen without increasing the cost and increasing the installation space and power consumption. An object of the present invention is to provide a decorative lighting device capable of producing a visual effect.

In order to achieve the above object, according to the first aspect of the present invention, a screen is attached to an opening of a case that opens at one end, a light source and a light shielding plate are accommodated in the case, and the light is emitted from the light source and the light shielding is performed. In a decorative lighting device that projects light transmitted through a light transmitting part of a plate onto the screen, the light source is configured by mounting a plurality of LEDs on a substrate, and the light transmitting part or the light shielding part of the light shielding plate is the LED. It is arranged on a straight line connecting the projection surface of the screen, and is configured to sequentially turn on the plurality of LEDs along an arbitrary sequence. The distance between the screen and the light shielding plate is a, the light shielding plate and the substrate Is b, the distance between adjacent LEDs is c, and the half-value angle of the LED is α, the angle θ between the projection plane direction from the LED and the optical axis is
θ = tan ⁻¹ (c / (a + b))
θ ≦ α / 2
It is characterized by satisfying .

  The invention according to claim 2 is characterized in that, in the invention according to claim 1, the light shielding plate is made of a transparent resin, and a plurality of cut portions or / and uneven portions are formed in a part of the transparent resin. .

  According to a third aspect of the present invention, in the first aspect of the present invention, the light shielding plate is made of an opaque resin, and a plurality of light transmitting portions are formed in a part of the opaque resin.

According to the first and second aspects of the present invention, when a plurality of LEDs are sequentially turned on along an arbitrary line, the light emitted from each LED is transmitted through each light-transmitting portion of the light-shielding plate and is transmitted to the screen. Since the image of the shape of the part is sequentially projected, the image on the screen also changes according to the change of the shape of each translucent part, and an interesting visual effect can be produced by the dynamic effect of the image. And since such an effect is acquired without rotating a light-shielding plate with drive sources, such as a motor, it does not cause a cost increase, an increase in installation space, and power consumption. Moreover, the light from each LED can be emitted toward the light transmitting part or the light shielding part of the light shielding plate, and a dynamic image can be projected on the screen by effectively using the light from each LED. .

  According to the first and third aspects of the present invention, if the light-shielding portion is formed on the light-shielding plate, light emitted from each LED is blocked by the light-shielding portion when any of the plurality of LEDs are lit along. The shadow image of each shading part shape is projected sequentially, and the shadow image on the screen changes according to the change of each shading part shape, which can produce an interesting visual effect by the dynamic effect of the image it can. Also in this case, since a drive source such as a motor is not required, the above-described effects can be obtained without increasing the cost and increasing the installation space and power consumption.

It is a longitudinal cross-sectional view of the decorative lighting device according to the present invention. It is a disassembled perspective view of the decorative illuminating device which concerns on this invention. It is a typical perspective view of the light source of the decorative illuminating device which concerns on this invention, a light-shielding plate, and a screen. It is a schematic diagram explaining the principle of operation of the decorative lighting device according to the present invention, where (a) is a plan view of a screen, (b) is a plan view of a light shielding plate, and (c) is a light source, a light shielding plate, and a side surface of the screen. FIG. It is a typical perspective view of the light source, the light-shielding plate, and the screen for demonstrating the operation principle by the sequential lighting of LED in the decoration lighting device which concerns on this invention. It is a typical perspective view of the light source, the light-shielding plate, and the screen for demonstrating the operation principle by the sequential lighting of LED in the decoration lighting device which concerns on this invention. It is a typical perspective view of the light source, the light-shielding plate, and the screen for demonstrating the operation principle by the sequential lighting of LED in the decoration lighting device which concerns on this invention. It is a typical perspective view of the light source, the light-shielding plate, and screen which show the state at the time of simultaneous lighting of LED in the decorative illuminating device concerning this invention. It is a longitudinal cross-sectional view of the decorative lighting apparatus proposed in Patent Document 1.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
[Configuration of decorative lighting device]
FIG. 1 is a longitudinal sectional view of a decorative lighting device according to the present invention, FIG. 2 is an exploded perspective view of the decorative lighting device, and the decorative lighting device 1 shown in FIG. 1 has one end opening of a case 2 formed into a bottomed cylindrical shape. The dome-shaped screen 3 is attached to the upper part (the upper end opening in FIG. 1), the light source 4 is accommodated in the bottom of the case 2, and the light shielding plate 5 is accommodated in the vicinity of the opening in the case 2. Yes. Here, a flange 3 a is integrally formed on the periphery of the opening of the dome-shaped screen 3, and the flange 3 a is attached to the periphery of the opening of the case 2. It is attached to. The light shielding plate 5 is attached to the lower surface of the flange 3 a of the screen 3.

  The case 2 is integrally formed into a bottomed cylindrical shape with an opaque resin, and as shown in FIG. 2, bosses 2A (only two are shown in FIG. 2) are provided at three locations on the outer periphery of the one end opening. It is integrally formed. Each boss portion 2A is formed with a screw hole 2a, and positioning pins 6 (only one is shown in FIG. 2) are erected on the two bosses 2A including a boss not shown. .

  The screen 3 is formed by applying a texture for light diffusion to the surface of a dome formed of a transparent resin, or by forming it into a dome using a translucent resin. The function of projecting the image of the light and the image of the shadow caused by the light being blocked by the light shielding plate 5 is achieved. The shape of the screen 3 is not limited to a dome shape, and may be a planar one.

  Further, bracket portions 3A are integrally formed at three locations in the circumferential direction of the flange portion 3a of the screen 3 (three locations corresponding to the boss 2A of the case 2), and each bracket portion 3A has a circular screw. Insertion holes 3b (only two are shown in FIG. 2) are formed. The two bracket portions 3A are formed with positioning pin holes 3c (only one is shown in FIG. 2).

  As shown in FIG. 2, the light source 4 is configured by mounting a plurality of LEDs 8 on a disk-shaped substrate 7 at an appropriate pitch on the same circumference. As will be described later, the plurality of LEDs 8 are sequentially turned on in the order of arrangement by a lighting control circuit (not shown).

In the present embodiment, the light-shielding plate 5 is made of a disc-shaped transparent resin as shown in FIG. 2, and has two locations on its outer periphery (the boss portion 2A of the case 2 and the bracket portion 3A of the screen 3). Brackets 5A (only one is shown in FIG. 2) are formed integrally with each other, and each bracket 5A has a circular screw insertion hole 5a and a positioning pin hole 5b. Formed>
Here, the light shielding plate 5 made of a transparent resin is formed with a plurality of cutout portions 5c having different shapes and a plurality of circular uneven portions 5d. The cutout portions 5c and the uneven portions 5d Is configured. In addition, as the light shielding plate 5, it is possible to use an opaque resin in which a plurality of transparent light-transmitting portions having different shapes are formed.
[Assembly of decorative lighting equipment]
Here, the assembly procedure of the decorative lighting device 1 according to the present embodiment will be described below.

  That is, after the light source 4 including the substrate 7 and the plurality of LEDs 8 mounted thereon is accommodated in the case 2 from the upper surface opening of the case 2, the case is inserted into the pin holes 5 b formed in the two brackets 5 A of the light shielding plate 5. 2, the two brackets 5 </ b> A of the light shielding plate 5 are attached to the case 2 of the case 2 in a state where the light shielding plate 5 is accurately positioned with respect to the case 2 by passing the positioning pins 6 erected on the two boss portions 2 </ b> A. Mounted on two bosses 2A.

Next, the screen 3 is covered on the light shielding plate 5, and the positioning pins 6 erected on the two boss portions 2 </ b> A of the case 2 are passed through the pin holes 3 c of the two bracket portions 3 </ b> A of the screen 3, respectively. Thus, with the screen 3 positioned accurately with respect to the light shielding plate 5 and the case 2, the screen 3 is overlaid on the case 2 with the light shielding plate 5 interposed therebetween. Then, since the screw insertion hole 3b of the screen 3, the screw insertion hole 5a of the light shielding plate 5 and the screw hole 2a of the case 2 coincide with each other, screws (not shown) inserted into the screw insertion holes 3b and 5a are screwed into the screw holes 2a of the case 2. The decorative lighting device 1 is assembled as shown in FIG.
[Operating principle of decorative lighting equipment]
Next, the operation principle of the decorative lighting device 1 configured as described above will be described with reference to FIGS. In the following, for convenience of explanation, the screen 3, the light source 4, and the light shielding plate 5 constituting the decorative lighting device 1 are illustrated in a simplified manner.

  3 is a schematic perspective view of a light source, a light-shielding plate, and a screen of a decorative lighting device according to the present invention. FIG. 4 is a schematic diagram for explaining the operating principle of the decorative lighting device. FIG. (B) is a plan view of the light shielding plate, (c) is a side view of the light source, the light shielding plate and the screen, and FIGS. 5 to 7 are light sources for explaining the operating principle of the decorative lighting device by sequentially lighting the LEDs. FIG. 8 is a schematic perspective view of a light source, a light shielding plate, and a screen showing a state when LEDs are simultaneously turned on in the decorative lighting device.

  Here, as shown in FIG. 3, it is assumed that the light source 4 has three LEDs 8-1, 8-2, and 8-3 arranged on a straight line at an appropriate interval on a rectangular substrate 7. The light shielding plate 4 is also a rectangular flat plate. In addition, it is assumed that three English letters “A”, “B”, and “C” are formed on the light shielding plate 5 as the cut-out portion 5c.

  Here, as shown in FIG. 4, the cutout portions 5 a of “A”, “B”, and “C” of the light shielding plate 5 are on a straight line connecting the LEDs 8-1 to 8-3 and the projection surface of the screen 3. Each is arranged.

Further, as shown in FIG. 4C, the distance between the screen 3 and the light shielding plate 5 is a, the distance between the light shielding plate 5 and the substrate 7 is b, the adjacent LEDs 8-1 and 8-2, and the LED 8-2. If the distance of 8-3 is c and the half-value angle of the LEDs 8-1 to 8-3 is α, the angle θ between the projection plane direction and the optical axis from the LEDs 8-1 to 8-3 is
θ = tan ⁻¹ (c / (a + b))
θ ≦ α / 2
Is set to a value that satisfies.

  Thus, when the LEDs 8-1, 8-2, and 8-3 are sequentially turned on in this order, the English characters “A” and “B” of the image as a shadow (darker than the other portions) are displayed on the screen 3. ”And“ C ”are sequentially projected and displayed in this order, and a dynamic effect is obtained in the image projected on the screen 3 to produce an interesting visual effect.

  That is, when the LED 8-1 is first turned on, as shown in FIG. 5, the light reflected and refracted by the standing wall of the cutout portion “A” of the light shielding plate 5 among the light from the LED 8-1 is Since it does not reach the screen 3 on the straight line passing through the LED 8-1 and the cut-out portion “A” as it is, an image of “A” as a dark shadow is projected on the screen 3. Then, when the LED 8-2 is turned on next, an image of “B” as a shadow is projected on the screen 3 as shown in FIG. 6 according to the same principle, and when the LED 8-3 is finally turned on, the screen 3 is displayed. As shown in FIG. 7, an image of “C” as a shadow is projected. Here, instead of the characters “A”, “B”, and “C”, if an arbitrary pattern that gradually changes is arranged, projection is performed according to the sequential lighting of the LEDs 8-1, 8-2, and 8-3. The deformation of the image can be produced with an animation effect. When the three LEDs 8-1, 8-2, and 8-3 are turned on at the same time, the screen 3 has images of “A”, “B”, and “C” as shadows as shown in FIG. It is projected again.

  As described above, according to the decorative lighting device 1 according to the present invention, since the cutout portion 5c and the uneven portion 5d are formed as the light shielding portion on the light shielding plate 5, the plurality of LEDs 8 are emitted from each LED 8 by lighting along any arbitrary order. Light is blocked by the light blocking portion. For this reason, the shadow image of the shape of each light-shielding part is sequentially projected on the screen 3, and the shadow image on the screen 3 also changes according to the change of the shape of each light-shielding part. Visual effects can be produced. In this case, since a driving source such as a motor is not required, the above-described effects can be obtained with a simple configuration without causing an increase in cost and an increase in installation space and power consumption.

In the present embodiment, when the distance between the screen 3 and the light shielding plate 5 is a, the distance between the light shielding plate 5 and the substrate 7 is b, the distance between adjacent LEDs 8 is c, and the half-value angle of the LED 8 is α,
θ = tan ⁻¹ (c / (a + b))
(The angle between the projection plane direction from the LED 8 and the optical axis) θ,
θ ≦ α / 2
Therefore, the light from each LED 8 can be emitted toward the through hole portion or the light shielding portion of the light shielding plate 5, and the light from each LED 8 can be effectively used on the screen 3. A simple image can be projected.

  When the light shielding plate 5 is formed by forming a plurality of transparent light-transmitting portions on a part of an opaque resin, the light is emitted from each LED 8 if the plurality of LEDs 8 are sequentially lit along an arbitrary line. Since the light to be transmitted passes through each light-transmitting part of the light shielding plate 5 and sequentially projects the image of the shape of each light-transmitting part on the screen 3, the image on the screen 3 also changes in accordance with the change in the shape of each light-transmitting part. In addition, an interesting visual effect can be produced by the dynamic effect of the image. And since such an effect is acquired without rotating the light-shielding plate 5 with drive sources, such as a motor, it does not cause an increase in cost, an increase in installation space, and power consumption.

DESCRIPTION OF SYMBOLS 1 Decorative lighting apparatus 2 Case 3 Screen 4 Light source 5 Light-shielding plate 5c Light-shielding plate cut-out part 5d Light-shielding plate uneven part 6 Positioning pin 7 Substrate 8 LED

Claims (3)

A screen is attached to the opening of the case having an opening at one end, a light source and a light shielding plate are accommodated in the case, and light emitted from the light source and transmitted through the light transmitting portion of the light shielding plate is projected onto the screen. In a decorative lighting device,
The light source is configured by mounting a plurality of LEDs on a substrate, the light-transmitting portion or the light-shielding portion of the light-shielding plate is disposed on a straight line connecting the LED and the projection surface of the screen, and the plurality of LEDs are arbitrarily arranged configured so as to sequentially turned on along the line of,
When the distance between the screen and the light shielding plate is a, the distance between the light shielding plate and the substrate is b, the distance between adjacent LEDs is c, and the half-value angle of the LED is α, the distance from the LED to the projection plane direction and the optical axis The angle θ of
θ = tan ⁻¹ (c / (a + b))
θ ≦ α / 2
Decorative lighting device characterized by satisfying   2. The decorative lighting device according to claim 1, wherein the light shielding plate is made of a transparent resin, and a plurality of cut portions and / or uneven portions are formed in a part of the transparent resin. 2. The decorative lighting device according to claim 1, wherein the light shielding plate is made of an opaque resin, and a plurality of light transmitting portions are formed in a part of the opaque resin.

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