JP2020057576A - Illuminating device - Google Patents

Abstract

To provide an illuminating device having high added value.SOLUTION: An illuminating device according to an embodiment comprises a projector, a housing, a main body part, and a light emitting part. The projector projects an image. The housing houses the projector. The main body part comprises an opposed surface opposed to a fitting surface fitted with the housing. The light emitting part is provided on the side of an outer edge part of the main body part, and arranged separately from the housing and the fitting surface.SELECTED DRAWING: Figure 5

Description

  Embodiments of the present invention relate to a lighting device.

  2. Description of the Related Art Conventionally, there has been known a technology of lighting equipment in which indirect light is emitted in an outer peripheral direction of the lighting equipment, thereby improving a performance effect and decorativeness.

JP 2013-219049 A

  However, in the prior art, for example, it is difficult for indirect light to reach the back side of the lighting device, specifically, it is difficult to reach the space between the lighting device and the mounting surface on which the lighting device is mounted. In some cases, the effect of the effect is reduced.

  Thus, there is room for further improvement in the prior art in that it provides a high value-added lighting device such as an effect by indirect light, a decorative effect, and an improvement in heat dissipation.

  It is an object of the present invention to provide a lighting device with high added value.

  A lighting device according to an embodiment includes a projector, a housing, a main body, and a light emitting unit. The projector projects an image. The housing houses the projector. The main body has a facing surface facing a mounting surface to which the housing is mounted. The light emitting unit is provided on the outer edge side of the main body, and is arranged separately from the housing and the mounting surface.

  According to the present invention, a lighting device with high added value can be provided.

FIG. 1 is a diagram illustrating an outline of a lighting device according to the first embodiment. FIG. 2 is a diagram illustrating an example of image acquisition in the lighting device according to the first embodiment. FIG. 3 is a side view of the lighting device according to the first embodiment. FIG. 4 is a top view of the lighting device according to the first embodiment. FIG. 5 is a cross-sectional view of the lighting device according to the first embodiment. FIG. 6 is a diagram for explaining a lens unit and a light shielding unit according to the first embodiment. FIG. 7 is a diagram for explaining the correspondence between the video output from the projector according to the first embodiment and the diffused video, and the like. FIG. 8 is a diagram illustrating an outline of a lighting device according to the second embodiment. FIG. 9 is a diagram illustrating an outline of a lighting device according to the third embodiment. FIG. 10 is a diagram illustrating an outline of a lighting device according to the fourth embodiment. FIG. 11 is a diagram illustrating an outline of a lighting device according to the fifth embodiment. FIG. 12 is a diagram for explaining the arrangement of the light emitting units included in the lighting device according to the sixth embodiment. FIG. 13 is a diagram for explaining the arrangement of the light emitting units included in the lighting device according to the seventh embodiment. FIG. 14 is a cross-sectional view of a housing included in the lighting devices according to the eighth to tenth embodiments.

  The lighting device 1 according to the embodiment described below includes a projector 70, a housing 20, a main body 30, and a light emitting unit 40. The projector 70 projects an image. The housing 20 houses the projector 70. The main body 30 has a facing surface 30b facing a mounting surface 91 to which the housing 20 is mounted. The light emitting section 40 is provided on the outer edge section 33 side of the main body section 30, and is arranged separately from the housing 20 and the mounting surface 91.

  Further, in the case 20 according to the embodiment described below, the outer surface of the front surface 21 connected to the main body 30 has a diameter b at the outer edge of the side surface 22 located between the facing surface 30 b and the mounting surface 91. It is smaller than the length c in the direction intersecting the surface 91.

  Further, the light emitting unit 40 according to the embodiment described below includes an indirect light source 50 provided on the side of the facing surface 30b of the main body 30 and illuminating between the facing surface 30b and the mounting surface 91. The housing 20 includes a tapered portion 22b formed on at least a part of the side surface portion 22 located between the facing surface 30b and the mounting surface 91 and inclined outwardly in a side view as the distance from the indirect light source 50 increases.

  Further, the light emitting unit 40 according to the embodiment described below includes an indirect light source 50 provided on the side of the facing surface 30b of the main body 30 and illuminating between the facing surface 30b and the mounting surface 91. The housing 20 includes an inverted tapered portion 22ba formed on at least a part of the side surface portion 22 located between the facing surface 30b and the mounting surface 91 and inclined inward in a side view as the distance from the indirect light source 50 increases. .

  Further, the indirect light source 50 according to the embodiment described below is provided such that the light emitting surface 50a is directed from the outer edge of the main body 30 to the center.

  The indirect light source 50 according to the embodiment described below is provided such that the light emitting surface 50a faces from the facing surface 30b of the main body 30 to the mounting surface 91.

  In addition, the lighting device 1 according to the embodiment described below is disposed outside the main body 30 provided with the indirect light source 50 in a side view, and transmits light from the indirect light source 50 (for example, a decorative frame). Unit 65).

  The illumination device 1 according to the embodiment described below includes a cover unit 60 that is provided so as to cover the projector 70 from the image output side and projects an image, and the light transmitting unit 65 includes the cover unit. 60 are arranged on the outer edge side.

  Further, the light transmitting portion 65 according to the embodiment described below is formed so as to extend from the cover portion 60 toward the mounting surface 91.

  Further, the light transmitting portion 65 according to the embodiment described below is formed so as to extend outward from the cover portion 60 toward the mounting surface 91 and to be inclined outward in a side view.

  Further, the light transmitting portion 65 according to the embodiment described below is formed to be curved so as to protrude outward in a side view.

  Hereinafter, a lighting device according to an embodiment will be described with reference to the drawings. In the embodiments, the same portions are denoted by the same reference numerals, and overlapping description may be omitted.

[First Embodiment]
First, an outline of the lighting device according to the first embodiment will be described with reference to FIG. FIG. 1 is a diagram illustrating an outline of a lighting device according to the first embodiment. The lighting device 1 shown in FIG. 1 is a so-called ceiling light mounted on a ceiling 90.

  The lighting device 1 according to the first embodiment is a lighting device capable of projecting an image on a cover unit 60 that covers a main body of the lighting device 1. More specifically, the lighting device 1 has a projector that projects an image, as described later, and the image output from the projector is projected on the inner surface of the cover unit 60. That is, in the lighting device 1 according to the embodiment, the cover unit 60 also functions as a screen.

  Accordingly, the user can visually recognize the image projected on the lighting device 1 in the lying position. For example, when introducing the lighting device 1 into a sickbed, a patient can visually recognize an image projected on the lighting device 1 in a posture lying on a bed.

  As described above, the illumination device 1 according to the first embodiment has a projection function of projecting an image in addition to an illumination function of illuminating a room. Therefore, according to the lighting device 1 according to the first embodiment, it is possible to provide a lighting device with high added value. Further, in the lighting device 1 according to the first embodiment, since a wall or a screen for projecting an image is not required, it is possible to reduce restrictions on an installation position and suppress a limitation on a use range and a use. It becomes possible.

  Further, for example, the illumination device 1 also has a function of indirect illumination for illuminating between the main body and the ceiling 90, which will be described later.

  Next, an example of acquiring an image projected by the illumination device 1 will be described with reference to FIG. FIG. 2 is a diagram illustrating an example of image acquisition in the lighting device according to the first embodiment. As shown in FIG. 2, the lighting device 1 can acquire an image projected on the cover unit 60 from the external device T via the antenna 101.

  The antenna 101 is an interface that performs wireless communication in accordance with a communication standard such as Wifi (registered trademark) or Bluetooth (registered trademark). For example, when the user of the external device T performs a predetermined operation such as a swipe operation on the image displayed on the display unit 102, the external device T outputs a control signal including image data. When the antenna 101 receives the control signal output from the external device T, the lighting device 1 outputs a video corresponding to the image data from the projector based on the received control signal, and causes the cover unit 60 to project the video.

  Thus, the lighting device 1 can output various images by acquiring the images from the external device T. Note that the lighting device 1 may be connected to an external network such as the Internet, and the video may be obtained via the external network. That is, for example, the lighting device 1 may directly acquire a content such as a moving image purchased by the user with the external device T via the external network.

  Note that the antenna 101 may be installed inside the lighting device 1, or the lighting device 1 may be connected to an external device T or an external network via a wired cable.

  Subsequently, a configuration example of the illumination device 1 according to the first embodiment will be described with reference to FIGS. 3 and 4. FIG. 3 is a side view of the lighting device 1 according to the first embodiment, and FIG. 4 is a top view of the lighting device 1. In FIG. 4, for convenience of understanding, illustration of a ceiling 90 to which the lighting device 1 is attached is omitted.

  In addition, for the sake of simplicity, FIG. 3 and the like sometimes show a three-dimensional orthogonal coordinate system including a Z-axis in which a vertically upward direction is a positive direction and a vertically downward direction is a negative direction. In the following description, the negative Z-axis side away from the ceiling 90 with respect to a certain member may be referred to as a “front side”, and the positive Z-axis side near the ceiling 90 may be referred to as a “back side”.

  As shown in FIGS. 3 and 4, the lighting device 1 includes a mounting unit 10, a housing 20, a main body 30, a light emitting unit 40 (see FIG. 4 and FIG. 5 described later), and a cover unit 60 (FIG. 3), a decorative frame section 65, a projector 70 (see FIG. 5), a lens section 75 (see FIG. 5), a light blocking section 80 (see FIG. 5), and a first power supply section 100 (see FIG. 5). And a second power supply unit 110 (see FIG. 5).

  The mounting portion 10 is an adapter for fixing the lighting device 1 to a hanging ceiling (not shown). For example, the lighting device 1 is operated by electric power supplied from the hanging ceiling via the mounting portion 10.

  For example, the light emitting unit 40 and the projector 70 can be operated by the power supplied from the hanging ceiling. That is, since a separate power supply for operating the projector 70 is not required, the mounting of the lighting device 1 can be simplified. Note that a power source for operating the projector 70 may be separated from the hook ceiling.

  The housing 20 is made of, for example, a resin material or a metal material, is formed in a substantially inverted conical shape, and accommodates various devices inside. The case 20 and the like will be described with reference to FIG. FIG. 5 is a cross-sectional view of the lighting device 1 according to the first embodiment. FIG. 5 shows a cross section taken along line AA in FIG.

  As shown in FIG. 5, the housing 20 includes a front part 21, a side part 22, and a back part 23. The front part 21 is formed, for example, in a flat plate shape. The side surface portion 22 is formed so as to be continuous from the outer edge of the front surface portion 21 and extend upward. The back portion 23 is formed so as to be continuous from the upper end of the side portion 22 and extend toward the center of the lighting device 1.

  The housing 20 has a space S formed therein by the front part 21, the side part 22, and the back part 23. The space S houses the projector 70 and a second power supply unit 110 described later. Hereinafter, the space S may be referred to as “accommodating space S”.

  The second power supply unit 110 is connected to a commercial AC power supply via the mounting unit 10, and receives the commercial AC power to generate a DC output. The second power supply unit 110 is configured to supply a DC output to the projector 70 and control the operation of the projector 70.

  Although not shown, the housing 20 may contain a heat-dissipating fan or the like that discharges, for example, heat discharged from the projector 70 or heat generated by the second power supply unit 110 to the outside of the housing 20. Good. Further, as shown in FIGS. 3 and 4, the housing 20 is provided with slits 25a and 25b for heat radiation. In the examples of FIGS. 3 and 4, the slit 25a is formed in the side surface 22 of the housing 20, and the slit 25b is formed in the back surface 23. Note that the numbers and positions of the slits 25a and 25b are merely examples and are not limited, and can be set arbitrarily.

  Returning to the description of FIG. 5, the above-described mounting portion 10 is provided on the back surface portion 23. Therefore, the housing 20 is mounted on the mounting surface 91 of the ceiling 90 via the mounting portion 10.

  The side surface portion 22 has a cylindrical portion 22a and a tapered portion 22b. The cylindrical portion 22a is a substantially cylindrical portion whose lower end is continuous with the outer edge of the front surface portion 21 and whose upper end is continuous with the lower end of the tapered portion 22b.

  The tapered portion 22b is a portion where the lower end is continuous with the upper end of the cylindrical portion 22a, while the upper end is continuous with the outer edge of the back surface portion 23. The tapered portion 22b is formed so as to incline outward in a side view as it goes to the upper end. The tapered portion 22b is formed in such a shape to reflect light from the light emitting portion 40, which will be described later.

  For example, an opening is formed in the front part 21 near the center, and a lens part 75 connected to the projector 70 is inserted into the opening. In the above description, the lens portion 75 is inserted through the opening of the front portion 21. However, the present invention is not limited to this. For example, a part of the projector 70 may be inserted. Any configuration may be used as long as an image from the projector 70 housed in the projector 20 is output to the cover unit 60 side.

  A main body 30 described later is connected to the front surface 21 of the housing 20. Although the housing 20 and the main body 30 are formed separately, they may be formed integrally.

  The main body 30 is a chassis formed of, for example, a material (metal material or the like) having relatively high thermal conductivity and formed in a disk shape. For example, the main body 30 has a front surface 30a and a facing surface 30b. The front surface 30a is a surface on the cover part 60 side in the main body part 30. The facing surface + 30b is a back surface opposite to the front surface 30a, and a surface facing the mounting surface 91 of the ceiling 90.

  On the front surface 30a side of the main body 30, an illumination light source 41 described later is provided, while on the facing surface 30b side, an indirect light source 50 and a first power supply unit 100 described later are provided. Therefore, heat generated by the illumination light source 41 or the indirect light source 50 or generated by the first power supply unit 100 is radiated through the main body unit 30.

  The first power supply unit 100 is connected to a commercial AC power supply via the mounting unit 10, and receives the commercial AC power to generate a DC output. The first power supply unit 100 is configured to supply a DC output to the light emitting unit 40 and control the lighting control or the dimming control of the illumination light source 41 and the indirect light source 50 independently of each other.

  Describing the main body 30 in more detail, the main body 30 includes a flat portion 31, a concave portion 32, and an outer edge portion 33.

  The flat part 31 is located near the center of the lighting device 1 and formed, for example, as a flat plate extending along the XY plane. In addition, as shown in FIG. 4, the flat portion 31 is formed in a rectangular shape in a plan view, but is not limited thereto, and may be in another shape such as a circular shape in a plan view.

  As shown in FIG. 5, an opening 31a is formed in the flat portion 31, for example, near the center. For example, a lens part 75 is inserted into the opening 31 a of the flat part 31. Further, a light-shielding portion 80 is attached to or near the opening 31a of the flat portion 31, which will be described later.

  The concave portion 32 is provided so as to be continuous with the outer edge side of the flat portion 31, and is a concave portion protruding downward from the flat portion 31 in a side view. For example, the concave portion 32 has a first wall surface 32a, a bottom surface 32b, and a second wall surface 32c.

  The first wall surface 32a is formed so as to be continuous from the outer edge of the flat portion 31 and extend downward. The bottom surface 32b is formed to be continuous from the first wall surface 32a and to extend outward along the XY plane. The second wall surface 32c is formed so as to be continuous from the outer edge of the bottom surface 32b and extend upward.

  In addition, the shape of the first wall surface 32a in plan view is a shape corresponding to the shape of the flat portion 31, that is, a rectangular shape, as shown in FIG. 4, since the first wall surface 32a is continuous from the flat portion 31. You. The planar shape of the second wall surface 32c is, for example, a circular shape.

  The outer edge portion 33 is provided to be continuous with the outer edge side of the concave portion 32 and is a portion that forms the outer edge of the main body portion 30. The shape of the outer edge portion 33 in a plan view is, for example, a circular shape as shown in FIG.

  The light emitting section 40 is provided on the main body section 30 formed as described above. The light emitting section 40 includes an illumination light source 41 and an indirect light source 50. The illumination light source 41 is an example of a light source.

  The illumination light source 41 is provided on the front surface 30a side of the main body 30, for example, on the front surface side of the concave portion 32, and is arranged outside the opening 31a so as to face each other across the opening 31a.

  The illumination light source 41 includes a substrate 42, a first light emitting element 43a, a second light emitting element 43b, and a third light emitting element 43c. The first light emitting element 43a is disposed on the outermost side among the first to third light emitting elements 43a to 43c. The second light emitting element 43b is disposed inside (center side) of the first light emitting element 43a so as to face the third light emitting element 43c with the first light emitting element 43a interposed therebetween. The third light emitting element 43c is disposed between the second light emitting element 43b and the opening 31a, and is disposed at the innermost (center side) among the first light emitting element 43a to the third light emitting element 43c.

  The substrate 42 is configured in an SMD (Surface Mount Device) type, and the first light emitting element 43a to the third light emitting element 43c are respectively mounted on the mounting surface. The substrate 42 is not limited to the SMD type, but may be a COB (Chip on Board) type or the like. In addition, the substrate 42 is arranged such that a plurality of (for example, four) substantially arc-shaped substrates having a predetermined width are connected to each other, and is formed in a substantially circular shape as a whole. That is, the substrate 42 formed in a substantially circle shape as a whole is constituted by a plurality of divided substrates, and FIG. 5 shows a part of them.

  In addition, the first light emitting element 43a to the third light emitting element 43c are respectively arranged, for example, so as to form a substantially circular column.

  For example, each of the first light emitting element 43a and the third light emitting element 43c is a white light source, and a plurality of white light sources are arranged along the circumferential direction or the length direction of the substrate 42 to form a white light source row. The white light source as the first light emitting element 43a and the white light source as the third light emitting element 43c may have the same color temperature or different color temperatures. The white light source may emit light of a bulb color or daylight white, or may emit light of warm white, white, daylight, or the like.

  For example, the second light emitting element 43b is a primary color light source, and a plurality of primary color light sources are arranged along the circumferential direction or the length direction of the substrate 42 to form a primary color light source row. In such a primary color light source array, a plurality of primary color light sources having different emission colors may be mutually arranged. Specifically, the primary color light source row has primary color light sources that emit three types of light, red, green, and blue, respectively, and emits light that is synthesized according to dimming and toning control. The primary color light source array may include two or less or four or more primary color light sources.

  The first to third light emitting elements 43a to 43c are, for example, LEDs. The lighting device 1 can independently control the dimming of the second light emitting element 43b, which is a primary color light source, and the first light emitting element 43a, and the third light emitting element 43c, which are white light sources. Thus, with respect to the illumination light source 41, it is possible to adjust the dimming ratio for each emission color and make the light output for each emission color variable.

  Note that the first to third light emitting elements 43a to 43c may emit light at the same time, or only some of the light emitting elements may emit light. Further, in the above, the shape, the number, the arrangement, and the like of the substrate 42 and the first to third light emitting elements 43a to 43c have been specifically described, but this is merely an example and is not limited.

  The light source 41 for illumination configured as described above emits light from the light emitting surface 41a by the light emission of the first light emitting element 43a to the third light emitting element 43c, and illuminates the room in which the lighting device 1 is mounted. The illumination light source 41 can emit light when an image is projected from the projector 70 onto the cover unit 60, which will be described later.

  The indirect light source 50 is provided on the facing surface 30 b side of the main body 30. For example, a plurality of indirect light sources 50 are provided on the back side of the concave portion 32 of the main body 30, specifically, on the second wall surface 32 c of the concave portion 32. In addition, in the concave portion 32 in which the indirect light source 50 is provided, a light-transmitting cover may be arranged so as to cover the concave portion 32.

  The indirect light source 50 has a substrate 51 and a fourth light emitting element 52. The substrate 51 is formed of, for example, an SMD type or a COB type, but is not limited thereto, and may be an FPC (Flexible Printed Circuit) or the like. The fourth light emitting element 52 is mounted on the mounting surface of the substrate 51. The fourth light emitting element 52 is, for example, a primary color light source, but is not limited thereto, and may be a white light source.

  The plurality of indirect light sources 50 configured as described above are attached to the second wall surface 32c of the concave portion 32 of the main body 30, as shown in FIG. Here, since the second wall surface 32c of the concave portion 32 has a circular shape in plan view as described above, the indirect light source 50 is a primary color light source row arranged in a substantially circle shape. The indirect light source 50 is provided such that the light emitting surface 50a is directed from the outer edge of the main body 30 to the center.

  The above-described indirect light source 50 emits light from the light emitting surface 50 a by light emission of the fourth light emitting element 52, and illuminates between the facing surface 30 b and the mounting surface 91 of the ceiling 90.

  Here, “indirect light” which is light emitted from the indirect light source 50 will be described with reference to FIG. In the present embodiment, the indirect light is emitted from the indirect light source 50 toward the space between the facing surface 30b and the mounting surface 91, and then hits the tapered portion 22b of the housing 20 and reflected.

  More specifically, the housing 20 is disposed between the facing surface 30 b of the main body 30 where the indirect light source 50 is provided and the mounting surface 91 of the ceiling 90. Therefore, the side surface 22 of the housing 20 is also located between the facing surface 30 b of the main body 30 and the mounting surface 91. And, as described above, the tapered portion 22b of the side surface portion 22 is formed so as to be inclined outward in a side view toward the upper end. In other words, as the distance from the indirect light source 50 is increased, the tapered portion 22b is outwardly inclined in a side view. It is formed as follows. In other words, the tapered portion 22b is inclined so that the surface (outer surface) faces the indirect light source 50 located below.

  As a result, the light emitted from the indirect light source 50 passes through the space between the facing surface 30b and the mounting surface 91 as shown by the arrow A1 in FIG. I will return.

  As described above, in the present embodiment, since the indirect light of the indirect light source 50 is reflected on the tapered portion 22b of the housing 20, the back surface of the lighting device 1, specifically, the facing surface 30b of the main body 30, is The space between the mounting surface 91 and the mounting surface 91 can be made brighter than the case where no reflection occurs. Thereby, in the lighting device 1, it is possible to improve the effect of the indirect light and the decorativeness.

  Note that the inclination angle of the tapered portion 22b can be set to an arbitrary value. For example, the angle of inclination of the tapered portion 22b may be set to a value such that the indirect light from the indirect light source 50 is efficiently reflected to the space between the facing surface 30b and the mounting surface 91. The value may be set so that the light is efficiently reflected toward the makeup frame portion 65 described later.

  In addition, the color of the housing 20, specifically, the color of the tapered portion 22b of the housing 20, can be set to an arbitrary color. For example, since the indirect light is reflected, the reflectance of light is relatively high. It may be a color (for example, white) or another color from the viewpoint of design.

  Further, as described above, the indirect light source 50 according to the present embodiment is provided so that the light emitting surface 50a is directed from the outer edge side of the main body 30 to the center side. In other words, the tapered portion 22b of the housing 20 is located at the position. It is provided so as to face the center side where Thereby, in the present embodiment, the indirect light of the indirect light source 50 can be more easily reflected by the tapered portion 22b, so that the space between the facing surface 30b of the main body 30 and the mounting surface 91 is effectively brightened. can do. Thereby, in the lighting device 1, it is possible to further enhance the effect of the indirect light and the decorativeness.

  In the case 20, the heat dissipation in the case 20 can be improved by forming the above-described tapered portion 22b. That is, since the tapered portion 22b is formed so as to be inclined outward in a side view toward the upper end, the accommodation space S of the housing 20 has a shape that widens in a side view as it goes upward.

  Therefore, in the present embodiment, for example, the heat discharged from the projector 70 housed in the housing 20 is transferred to the upper part of the housing space S widened by the tapered portion 22b as shown by an arrow B in FIG. The heat can be dissipated from the slit 25b (see FIG. 4) of the back surface portion 23 while diffusing toward the surface. As described above, in the present embodiment, by providing the tapered portion 22b to form a shape in which the heat inside the housing 20 is easily diffused and discharged, compared to a case where the tapered portion 22b is not formed in the housing 20, The heat radiation inside the housing 20 can be improved.

  Further, in the present embodiment, for example, when the projector 70 has a speaker (not shown) that outputs sound, the sound output from the speaker can be efficiently transmitted to the user. That is, in the housing 20 according to the present embodiment, the inclined tapered portion 22b is formed, so that the sound output from the loudspeaker can be made to hit the tapered portion 22b and reverberate, so that the sound is output. It can be efficiently transmitted to the user.

  The cover part 60 is a so-called shade that has translucency and is made of milky white resin, for example. The cover portion 60 is positioned so that the inner surface 60a side faces the front surface 30a of the main body portion 30, and is provided so as to cover the main body portion 30 and the illumination light source 41 from the front side, that is, the emission surface side of the illumination light source 41. Further, since the lens unit 75 connected to the projector 70 is disposed near the center of the main unit 30, it can be said that the cover unit 60 is provided so as to cover the lens unit 75 from the emission surface side.

  The cover part 60 is formed, for example, in a circular shape in plan view. Further, the outer surface 60b of the cover part 60 constitutes the front side of the lighting device 1, and the outer surface 60b is formed in a curved shape that projects gently downward, in other words, in a dome shape. In addition, the cover part 60 can expand the illuminating range and improve the uniformity by diffusing the light output from the illumination light source 41. Further, by employing such a cover portion 60, when a light emitting element that outputs light with high straightness, such as an LED, is employed, it is possible to reduce the crushing of light used for illumination. An image output from the projector 70 is projected on the cover unit 60 configured as described above, which will be described later in detail.

  The decorative frame portion 65 is an annular member that is arranged on the outer edge 60c side of the cover portion 60 and outside the main body portion 30 in a side view. The decorative frame 65 has, for example, translucency and is made of translucent or transparent white resin. Note that the decorative frame portion 65 is an example of a light transmitting portion.

  Although the decorative frame 65 is formed integrally with the cover 60, the decorative frame 65 may be formed separately from the cover 60. Further, the decorative frame 65 is formed separately from the main body 30, but may be formed integrally with the main body 30. In the above, the colors and materials of the decorative frame 65 and the cover 60 are specifically shown, but this is merely an example and is not limited.

  Since the decorative frame portion 65 is disposed on the outer edge 60c side of the cover portion 60 and outside the main body portion 30 where the indirect light source 50 is provided, the light from the indirect light source 50 can be transmitted. Specifically, for example, the decorative frame portion 65 transmits indirect light emitted from the indirect light source 50 and indirect light reflected by the tapered portion 22b of the housing 20 (see the arrow A2 in FIG. 5).

  In the lighting device 1 according to the present embodiment, by transmitting the indirect light of the indirect light source 50 to the decorative frame portion 65, the indirect light can have a spread toward the outside of the lighting device 1. As a result, it is possible to further improve the effect of the indirect light and the decorativeness.

  Further, the decorative frame portion 65 formed in an annular shape has an outer edge portion 65a at an outer portion in a side view. For example, the outer edge 65a is formed to extend from the cover 60 toward the mounting surface 91 of the ceiling 90, in other words, to extend upward.

  Specifically, the outer edge 65a of the decorative frame 65 is formed so as to extend outward from the cover 60 toward the mounting surface 91 and to be inclined outward in a side view. The outer edge 65a is formed to be curved so as to protrude outward in a side view.

  Since the decorative frame 65 is formed as described above, it is possible to efficiently receive and transmit the indirect light emitted from the indirect light source 50 and the indirect light reflected by the tapered portion 22b. Thereby, the decorative frame portion 65 becomes brighter, and the indirect light can be further expanded, so that the effect of the lighting device 1 by the indirect light can be further improved.

  The shape of the decorative frame 65 including the outer edge 65a is not limited to the above, and may be other shapes such as a tapered shape in which the outer edge 65a is not curved.

  Further, as described above, in the present embodiment, the illumination light source 41 and the indirect light source 50, that is, the light emitting unit 40, are closer to the outer edge 33 than the center of the main body 30 facing the housing 20 in plan view. Therefore, the light-emitting unit 40 is disposed separately from the housing 20 and the mounting surface 91. For this reason, in the lighting device 1 according to the present embodiment, it is possible to achieve both the heat radiation performance of the light emitting unit 40 and the securing of the brightness of the mounting surface 91 by the indirect light source 50.

  Here, in the housing 20, the diameter b of the outer edge of the front surface portion 21 can be smaller than the length c in the Z-axis direction intersecting the mounting surface 91 of the side surface portion 22. Specifically, when the diameter of the decorative frame 65 facing the cover 60 is defined as a, b / a ≧ 0.2 and c / a ≦ 0.2 can be satisfied. By defining the diameter b and the length c in this manner, a space suitable for heat radiation and diffusion of indirect light is formed outside the housing 20 and between the indirect light source 50 and the mounting surface 91, and the light emitting unit 40 Is further improved, and the brightness of the mounting surface 91 is ensured. As an example, the illuminating device 1 having a diameter a = 507 [mm], a diameter b = 85 [mm], and a length c = 142 [mm] can be given, but it goes without saying that the illuminating device 1 is not limited to such values.

  Next, the projector 70, the lens unit 75, and the light shielding unit 80 will be described in detail. The projector 70 outputs an image and projects the image on the cover unit 60 from the inner surface 60a side (back side). Note that the projector 70 may include, for example, a speaker that outputs audio linked to video.

  The lens unit 75 is provided in the image optical path of the projector 70, and diffuses and outputs the image output from the projector 70. For example, the lens part 75 is inserted through an opening 31 a formed in the flat part 31 of the main body part 30, and is arranged such that the emission surface 75 a faces the inner surface 60 a of the cover part 60. As the lens unit 75, a fish-eye lens can be used, but the present invention is not limited to this, and another type of lens such as a wide-angle lens may be used.

  Further, the lens unit 75 may be directly attached to the projector 70 or may be attached to, for example, the main body unit 30. In short, the lens unit 75 may be provided on the image light path of the projector 70. Note that the distance from the emission surface 75a of the lens unit 75 to the inner surface 60a of the cover unit 60 may be any value based on, for example, the size of the cover unit 60 on which an image is projected, the focal length of the projector 70 or the lens unit 75, and the like. Can be set to a value.

  The light shielding unit 80 is arranged near the lens unit 75 and shields a part of the image emitted from the lens unit 75. Thereby, the image shielded by the light shielding unit 80 is projected on the cover unit 60, so that the image output from the projector 70 can be appropriately projected on the cover unit 60. This will be described with reference to FIG.

  FIG. 6 is a diagram for explaining the lens unit 75 and the light blocking unit 80 according to the first embodiment. FIG. 6 is a side sectional view in which the vicinity of the light shielding unit 80 is enlarged. In FIG. 6, for simplicity of illustration, the cover portion 60 is indicated by a two-dot chain line.

  As described above, the lens unit 75 diffuses and outputs the image output from the projector 70. In FIG. 6, an image diffused and emitted by the lens unit 75 (hereinafter sometimes referred to as “diffused image”) is indicated by a dashed line, and if the diffused image is projected onto the cover unit 60 as it is, the diffusion A display area where an image is displayed on the cover unit 60 is indicated by a symbol R1.

  Here, the video output from the projector 70 will be described with reference to FIG. FIG. 7 is a diagram for explaining the correspondence between the image output from the projector 70 and the diffused image, and the like. In FIG. 7, the image output from the projector 70 is indicated by reference numeral 200, and for convenience of understanding, the image 200 is shown in correspondence with a display area R <b> 1 displayed on the cover unit 60 as a diffused image. I have.

  As shown in FIG. 7, the image 200 output from the projector 70 may be a horizontally long image such as 16: 9 or 4: 3. In such a case, if the image 200 from the projector 70 passes through the lens unit 75 and is projected on the cover unit 60, depending on the position and performance of the lens unit 75, the horizontally long image 200 may be displayed in the display region R1 of the cover unit 60. In some cases, an image in which the vicinity of the vertical end was cut off was projected. In other words, in the display area R1 of the cover unit 60, an image in which a part of the outer periphery is darkened may be projected. In FIG. 7, a portion where the vicinity of the vertical end of the image 200 is cut off and becomes dark is surrounded by a two-dot chain line closed curve C.

  Therefore, in the present embodiment, as shown in FIG. 6, a part of the diffused image is shielded by using the light shielding part 80. For example, the light shielding unit 80 shields the outer peripheral side of the diffused image (specifically, the outer peripheral side where the end of the image 200 is cut and darkened). Therefore, an image light-shielded by the light-shielding part 80 is projected on the cover part 60.

  In FIG. 6, an image shielded by the light shielding unit 80 (hereinafter, sometimes referred to as “shielded image”) is indicated by a broken line, and when the shielded image is projected on the cover unit 60, the shielded image is The display area displayed at 60 is indicated by reference symbol R2. Similarly, FIG. 7 illustrates the display region R2 in association with the image 200.

  As shown in FIG. 7, in the present embodiment, the light-shielding portion 80 is used to partially shield, for example, a diffused image that has been cut off and darkened on the outer peripheral side. Thus, the video output from the projector 70 can be appropriately projected on the cover unit 60.

  Hereinafter, the light shielding unit 80 will be described in more detail with reference to FIG. The light shielding portion 80 is made of a resin material or a metal material having a light shielding property. Since the light-shielding portion 80 only needs to be able to shield a part of the diffused image, it is not necessary that the entirety has a light-shielding property. It may be a configuration.

  The light-shielding part 80 is formed, for example, in a cylindrical shape having an opening 80a, and a lens part 75 is disposed inside the cylindrical part. Then, the image (that is, the diffused image) emitted from the lens unit 75 passes through the opening 80a.

  Here, the cylindrical shape that is the shape of the light shielding portion 80 is a shape corresponding to the shape of the cover portion 60. That is, since the cover part 60 is formed in a circular shape in plan view, the light shielding part 80 is formed in a cylindrical shape corresponding to the shape of the cover part 60.

  Accordingly, a light-shielded image whose outer shape is light-shielded in a circular shape by the light-shielding portion 80 is projected onto the circular cover portion 60 in plan view. In this way, by making the shape of the cover part 60 and the shape of the light-shielded image light-shielded by the light-shielding part 80 similar, the design and visibility of the image (light-shielded image) projected on the cover part 60 are improved. be able to.

  In the above description, since the cover part 60 has a circular shape, the light shielding part 80 is formed in a cylindrical shape. However, the present invention is not limited to this. That is, for example, when the cover part 60 is rectangular in plan view, the light shielding part 80 is formed in a rectangular tube shape, and when the cover part 60 is elliptical in plan view, the light shielding part 80 is formed in an elliptic cylindrical shape. For example, the light shielding portion 80 may be formed in a shape corresponding to the shape of the cover portion 60. As described above, the shape of the cover 60 and the shape of the light-shielded image are similar, and the design and the like of the image projected on the cover 60 can be improved, as described above.

  The light-shielding portion 80 is provided such that the opening 80a is located closer to the cover 60 than a plane including the emission surface 75a of the lens unit 75 (for example, a horizontal plane (XY plane) including the emission surface 75a). Specifically, the opening 80a of the light shielding unit 80 is located on the cover unit 60 side (that is, below) by a predetermined height H1 from a plane including the emission surface 75a of the lens unit 75.

  Thus, the light shielding unit 80 can reliably shield part of the diffused image emitted from the emission surface 75a of the lens unit 75.

  The light shielding portion 80 is provided such that the opening 80a is located closer to the lens portion 75 than a plane including the light emitting surface 41a of the illumination light source 41 (for example, a horizontal plane (XY plane) including the light emitting surface 41a). Specifically, the opening 80a of the light shielding unit 80 is positioned on the lens unit 75 side (that is, above) by a predetermined height H2 from a plane including the light emitting surface 41a of the illumination light source 41.

  Thereby, for example, when light is emitted from the light emitting surface 41a of the illumination light source 41 and illuminates the room, the light from the light emitting surface 41a hits the light shielding portion 80, and the light from the illumination light source 41 is unnecessary. Light blocking can be suppressed.

  In the above description, the light shielding portion 80 is provided such that the opening 80a is located closer to the lens portion 75 than a plane including the light emitting surface 41a of the illumination light source 41, but is not limited thereto. , 80 a may be provided so as to be located on the same plane as the plane including the light emitting surface 41 a.

  Here, the illumination light source 41 may emit light when an image is projected from the projector 70 onto the cover unit 60, as described above. For example, the illumination light source 41 illuminates the periphery of the image projected on the cover unit 60 with a color corresponding to the image, and can improve the effect of producing the image.

  Further, when an image is projected from the projector 70 onto the cover 60, the illumination light source 41 emits light toward a region R4 including a portion R3 of the cover 60 where the image is not projected due to light shielding by the light shielding unit 80. Is also good.

  Thereby, the influence of the light shielding of the light shielding unit 80 can be reduced. That is, since the light-shielded image light-shielded by the light-shielding unit 80 has a smaller outer size than the diffused image diffused by the lens unit 75, the image is not projected on the cover unit 60 due to light-shielding and becomes darker. May be formed. Therefore, the illumination light source 41 emits light toward a region R4 which includes the portion R3 of the cover portion 60 and is located outside the display region R2 where the light-shielded image is displayed. Thereby, it is possible to illuminate the portion R3 or the like that is darkened by being shielded by the light shielding unit 80, and thus it is possible to reduce the influence of the light shielding unit 80 due to the light shielding.

[Second to fifth embodiments]
The outline of the lighting device 1 according to the second to fifth embodiments will be described with reference to FIGS. 8 to 11 are diagrams illustrating an outline of the lighting device 1 according to the second to fifth embodiments. The lighting device 1 illustrated in FIGS. 8 to 11 has the same configuration as the lighting device 1 according to the first embodiment except that the arrangement of the first power supply unit 100 and / or the second power supply unit 110 is different. I have.

  The first power supply unit 100A and the first power supply unit 100B shown in FIGS. 8 and 9 are different from the first power supply unit 100 provided on the facing surface 30b side of the flat portion 31 in that the front surface 30a side of the flat portion 31 It differs from the lighting device 1 according to the first embodiment in that it is provided on the front surface 33a side of the part 33.

  Further, the second embodiment is different from the first embodiment in that the second power supply unit 110A shown in FIG. 10 is provided on the front surface 30a side of the flat part 31 instead of the second power supply unit 110 housed in the space S of the housing 20. Is different from the lighting device 1 according to the first embodiment.

  In addition, as shown in FIG. 11, a power supply unit 120 having both functions of the first power supply unit 100 and the second power supply unit 110 may be provided. By combining the first power supply unit 100 and the second power supply unit 110 in this way, for example, a plurality of power supply lines and signal lines can be collectively modularized. The arrangement of the power supply unit 120 shown in FIG. 11 is an example, and for example, the power supply unit 120 may be arranged at the same location as the first power supply units 100A and 100B and the second power supply units 110 and 110A.

  Further, in each of the above-described embodiments, the first power supply units 100, 100A, and 100B have been described as controlling the illumination light source 41 and the indirect light source 50. The power supply units may be individually arranged.

[Sixth and seventh embodiments]
Next, the arrangement of the light emitting units 40 included in the lighting devices 1 according to the sixth and seventh embodiments will be described with reference to FIGS. FIGS. 12 and 13 are diagrams for explaining the arrangement of the light emitting units 40 included in the lighting devices 1 according to the sixth and seventh embodiments. The illuminating device 1 shown in FIGS. 12 and 13 differs from the illuminating device 1 according to the first embodiment in that the indirect light source 50 is arranged on the bottom surface 32b instead of the second wall surface 32c. Thus, the indirect light source 50 is provided so as to face from the facing surface 30b side of the main body 30 to the mounting surface 91 side. Even the indirect light source 50 arranged as described above can illuminate the space between the facing surface 30b and the mounting surface 91. In such a case, the arrangement of the illumination light source 41 and the indirect light source 50 may be such that the illumination light source 41 is arranged closer to the center than the indirect light source 50 (see FIG. 12), and the indirect light source 50 is arranged more centrally than the illumination light source 41. It may be arranged closer (see FIG. 13). In such a case, the first wall surface 32a and / or the second wall surface 32c may be inclined with respect to the bottom surface 32b in order to diffuse the indirect light from the indirect light source 50 at a wider angle.

[Eighth to Tenth Embodiments]
FIG. 14 is a cross-sectional view of the housing 20 included in the lighting devices 1 according to the eighth to tenth embodiments. As shown in FIG. 14A, a housing 20 included in a lighting device 1 according to the eighth embodiment is different in that a side surface portion 22 does not have a cylindrical portion 22a and is configured only with a tapered portion 22b. This is different from the housing 20 of the lighting device 1 according to the first embodiment. As shown in FIG. 14B, the housing 20 of the lighting device 1 according to the ninth embodiment has a side surface portion 22 that does not have a tapered portion 22b and is configured only by a cylindrical portion 22a. This is different from the housing 20 of the lighting device 1 according to the first embodiment in that point.

  As shown in FIG. 14C, the housing 20 included in the lighting device 1 according to the tenth embodiment has an inverted tapered portion 22ba. The reverse taper portion 22ba is formed so that the side surface portion 22 is inclined inward as viewed from the side as the side surface portion 22 reaches the upper end. The inverted tapered portion 22ba can reflect light from the light emitting portion 40 toward the mounting surface 91 by being formed in such a shape. Note that the side surface portion 22 of the housing 20 may have a cylindrical portion 22a that is continuous with the upper end or lower end of the reverse tapered portion 22ba.

  As described above, the lighting device 1 according to the embodiment includes the projector 70, the housing 20, the main body 30, and the light emitting unit 40. The projector 70 projects an image. The housing 20 houses the projector 70. The main body 30 has a facing surface 30b facing a mounting surface 91 to which the housing 20 is mounted. The light emitting section 40 is provided on the outer edge section 33 side of the main body section 30, and is arranged separately from the housing 20 and the mounting surface 91. Thereby, a lighting device with high added value can be provided.

  In addition, the light emitting unit 40 according to the embodiment includes an indirect light source 50 that is provided on the facing surface 30b side of the main body 30 and illuminates between the facing surface 30b and the mounting surface 91. The housing 20 includes a tapered portion 22b formed on at least a part of the side surface portion 22 located between the facing surface 30b and the mounting surface 91 and inclined outwardly in a side view as the distance from the indirect light source 50 increases. As a result, it is possible to improve the effect of the indirect light and the decorativeness.

  In the above-described embodiment, the cover 60 of the lighting device 1 is formed in a circular shape in a plan view. However, the present invention is not limited to this. The shape may be as follows.

  Further, in the above description, the light shielding portion 80 is formed to have a shape corresponding to the shape of the cover portion 60. However, the shape is not limited to this. It may be formed.

  In the above description, in the housing 20, the tapered portion 22 b is formed above the side surface portion 22, but is not limited thereto, and may be formed below the side surface portion 22.

  In the above description, in the illumination light source 41, the first light emitting element 43a and the third light emitting element 43c are white light sources, and the second light emitting element 43b is a primary color light source. However, this is merely an example and is not limited. Absent. That is, for example, the combination of the white light source and the primary color light source can be arbitrarily set such that the first light emitting element 43a is a primary color light source and the second light emitting element 43b and the third light emitting element 43c are white light sources.

  In the above description, the indirect light source 50 is provided on the second wall surface 32c or the bottom surface 32b of the concave portion 32 of the main body 30. However, the present invention is not limited to this. Etc. may be provided in other places.

  In the above description, the case where the lighting device 1 is attached to the ceiling 90 of the room has been described. However, the lighting device 1 may be attached to another place such as a side wall of the room.

  Although an embodiment of the present invention has been described, this embodiment is provided by way of example and is not intended to limit the scope of the invention. This embodiment can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the invention described in the claims and their equivalents.

Reference Signs List 1 lighting device 20 housing 22b taper portion 30 main body portion 40 light emitting portion 41 lighting light source 50 indirect light source 60 cover portion 70 projector 75 lens portion 80 light shielding portion

Claims (11)

A projector for projecting images;
A housing for housing the projector;
A main body having a facing surface facing the mounting surface to which the housing is mounted;
A light-emitting unit provided on an outer edge side of the main body unit and spaced apart from the housing and the mounting surface;
A lighting device comprising: In the housing, a diameter of an outer edge of a front surface portion connected to the main body portion is smaller than a length of a side surface portion located between the facing surface and the mounting surface in a direction intersecting the mounting surface. The lighting device according to claim 1. The light emitting unit is provided on the opposite surface side of the main body, and includes an indirect light source that illuminates between the opposite surface and the mounting surface,
The housing is
A taper portion formed on at least a part of a side surface portion located between the facing surface and the mounting surface, and inclined outward in a side view as the distance from the indirect light source increases;
The lighting device according to claim 1, further comprising: The light emitting unit is provided on the opposite surface side of the main body, and includes an indirect light source that illuminates between the opposite surface and the mounting surface,
The housing is
An inverted taper portion formed on at least a part of a side surface portion located between the facing surface and the mounting surface, and inclined inward in a side view as the distance from the indirect light source increases;
The lighting device according to claim 1, further comprising: The indirect light source is
The lighting device according to claim 3, wherein the light emitting surface is provided so as to face from an outer edge side of the main body to a center side. The indirect light source is
The lighting device according to claim 3, wherein a light emitting surface is provided so as to face from the facing surface side of the main body to the mounting surface side. A light-transmitting portion that is disposed outside the main body portion in which the indirect light source is provided in a side view and transmits light from the indirect light source;
The lighting device according to any one of claims 3 to 6, further comprising: A cover unit that is provided to cover the projector from an image output side and that projects an image;
With
The translucent section,
The lighting device according to claim 7, wherein the lighting device is arranged on an outer edge side of the cover portion. The translucent section,
The lighting device according to claim 8, wherein the lighting device is formed so as to extend from the cover portion toward the mounting surface. The translucent section,
The lighting device according to claim 8, wherein the lighting device is formed so as to extend outward from the cover portion toward the mounting surface and to be inclined outward in a side view. The translucent section,
The lighting device according to any one of claims 7 to 10, wherein the lighting device is curved so as to protrude outward in a side view.