JP2017091996A - Lighting device and lighting control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device capable of irradiating a light emitting surface with light from a light source and solving the problem when a video from a projection part is projected.SOLUTION: A lighting device 10 includes: a light emitting surface 13D; a main light source 15; a projection part 17; and a sub light source 16. The main light source 15 irradiates a predetermined area of the light emitting surface 13D with light. In the projection part 17, the video is projected to the area adjacent to the area to which light is irradiated by the main light source 15 of the light emitting surface 13D. The sub light source 16 irradiates the area between the area to which light is irradiated by the main light source 15 of the light emitting surface 13D and the area to which the video is irradiated by the projection part 17 with light having a predetermined color component.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a lighting device including a main light source and a sub light source, and a lighting control system using the lighting device.

  2. Description of the Related Art Conventionally, there is an illuminating apparatus in which a main light source that emits white light and a sub light source that emits light of an arbitrary color different from white light are provided in a fixture body, and these light sources are covered with a diffusion cover. In this lighting device, the entire diffusion cover is controlled to have a uniform color and brightness.

  In addition, there is an illumination device that includes a projection unit that projects an image on a wall surface or the like, and controls a light source so that an illumination scene matches the atmosphere of the image.

  In the conventional illumination device, there is no device that irradiates light from the light source onto the light emitting surface and projects an image from the projection unit, and the problem in such a case has not been considered.

JP 2012-186118 A

  The problem to be solved by the present invention is to provide an illumination device and an illumination control system capable of solving the problem in the case of projecting an image from a projection unit while irradiating light from a light source onto a light emitting surface. It is.

  The illumination device of the embodiment includes a light emitting surface, a main light source, a projection unit, and a sub light source. The main light source irradiates a predetermined area of the light emitting surface with light. The projection unit projects an image on a region adjacent to a region where the main light source on the light emitting surface emits light. The sub-light source irradiates light of a predetermined color component to a region between a region where the main light source of the light emitting surface irradiates light and a region where the projection unit projects an image.

  ADVANTAGE OF THE INVENTION According to this invention, it can be anticipated that the subject in the case of projecting the image | video from a projection part while irradiating the light from a light source with respect to a light emission surface can be anticipated.

It is sectional drawing of the illuminating device which shows 1st Embodiment. It is a schematic perspective view of an illuminating device same as the above. It is a schematic side view of an illuminating device same as the above. It is a perspective view of the diffusion cover of an illuminating device same as the above. It is a perspective view of the installation state of an illuminating device same as the above. It is a schematic diagram which shows arrangement | positioning of each light source and projection part of an illuminating device same as the above. It is a schematic diagram which shows the area | region of the light emission surface of an illuminating device same as the above. It is a block diagram of control of an illuminating device same as the above. It is a block diagram of the illumination control system using an illuminating device same as the above. It is a table | surface which shows the relationship between the image | video which an illuminating device same as the above projects, and the color of each light source. It is sectional drawing of the illuminating device which shows 2nd Embodiment.

  Hereinafter, a first embodiment will be described with reference to FIGS. 1 to 10.

  As shown in FIG. 5, the lighting device 10 is a ceiling-embedded lighting device that is embedded in an embedded hole formed in the ceiling surface 11.

  1 to 3 show the configuration of the illumination device 10. The illumination device 10 includes an instrument body 12, a diffusion cover 13, a decorative frame 14, a main light source 15, a sub light source 16, and a projection unit 17.

  The instrument body 12 is formed in a rectangular box shape, and includes a top plate 20, side plates 21 facing each other in the first direction a along the top plate 20, and a second orthogonal to the first direction a. Side plates 22 facing each other in the direction b. A rectangular irradiation opening 23 is formed on the lower surface of the instrument body 12.

  The inner surfaces of the top plate 20 and the side plates 21 and 22 are formed on a reflective surface 24 having a high reflectance such as a white surface.

  Further, as shown in FIGS. 1, 4 and 5, the diffusion cover 13 is integrally formed by using, for example, a pressure forming method using a milky white resin material having translucency and light diffusibility. The diffusion cover 13 is curved in a bending direction (first direction a) connecting one opposing side and formed linear in a width direction (second direction b) connecting the other opposing side. Cover portion 13A, side surface portions 13B provided on both side surfaces in the width direction (second direction b) orthogonal to the bending direction (first direction a) of the cover portion 13A, the cover portion 13A and the side surface portions 13B has an edge 13C projecting outward from the periphery of the lower end of 13B. The diffusion cover 13 is attached with a peripheral edge 13C fitted into the decorative frame 14.

  The cover portion 13A of the diffusion cover 13 is a light emitting surface 13D on which light from the main light source 15 and the sub light source 16 is irradiated and emits light, and an image is projected from the projection unit 17.

  The diffusion cover 13 attached to the decorative frame 14 is disposed on the instrument main body 12 so as to cover the irradiation opening 23, and is curved so as to be recessed toward the inside of the instrument main body 12.

  Then, on the light emitting surface 13D of the diffusion cover 13, the projection unit 17 faces the central region in the bending direction (first direction a) and an image is projected, and both end regions in the bending direction (first direction a) are projected. The main light source 15 faces and is irradiated with light. Between the central region and the end region, the image is irradiated from the projection unit 17 and the region where the light from the main light source 15 is irradiated. The light source 16 faces and is irradiated with light.

  As shown in FIGS. 1 and 5, the decorative frame 14 is formed in a square frame shape having a square opening 28 in the center, and is attached to the lower ends of the side plates 21 and 22 of the instrument body 12. That is, the decorative frame 14 is provided around the irradiation opening 23 of the instrument body 12.

  The decorative frame 14 includes a decorative plate portion 29 provided in a quadrangular frame shape, and an attachment portion 30 that rises from the upper surface of the decorative plate portion 29 and is attached to the side plates 21 and 22.

  On the outer peripheral side of the decorative plate portion 29, an edge portion 31 that covers the embedded hole of the ceiling surface 11 and faces the ceiling surface 11 is provided.

  On the inner edge of the decorative plate portion 29 in the first direction a, a facing portion 32 is provided that protrudes toward the center of the decorative frame 14. The facing portion 32 is opposed to the lower surface of the diffusion cover 13 with a gap between the lower surface of the diffusion cover 13. The upper surface of the facing portion 32 is formed on a reflective surface having a high reflectance such as a white surface.

  In the present embodiment, the decorative frame 14 is provided such that the width of the decorative plate portion 29 located on both sides in the first direction a is wider than the width of the decorative plate portion 29 located on both sides in the second direction b. Yes. In addition, the opposing part 32 may be provided also in the inner edge of the decorative board part 29 of the 2nd direction b, and the width | variety of the perimeter of the decorative board part 29 is good also as the same width.

  As shown in FIG. 1, the main light source 15 is provided along the second direction b at the positions on both end sides in the first direction a in the instrument body 12.

  The main light source 15 emits light of a predetermined color component. The light of a predetermined color component is light used for general illumination light, and includes, for example, light of daylight color, daylight white color, and light bulb color. In the present embodiment, for example, a first main light source that emits daylight color light having a correlated color temperature of 7000K and a second main light source that emits light bulb color light having a correlated color temperature of 2700K are provided.

  As the main light source 15, a light emitting module 35 is used. The light emitting module 35 includes a substrate 36 and a plurality of light emitting elements 37 mounted on the substrate 36. The substrate 36 is formed in a rectangular shape elongated in the second direction b of the instrument body 12, and a wiring pattern is formed on the surface. The plurality of light emitting elements 37 are mounted on the wiring pattern of the substrate 36 in one or a plurality of rows in the center in the width direction of the substrate 36 at predetermined intervals along the longitudinal direction of the substrate 36. For the light emitting element 37, for example, a surface-mounted LED is used.

  The light emitting elements 37 of the first main light source and the light emitting elements 37 of the second main light source are arranged in two rows along the longitudinal direction of the substrate 36, or the light emitting elements 37 of the first main light source and the second light source 37 The light emitting elements 37 of the main light source are alternately arranged in a line along the longitudinal direction of the substrate 36, and the light emitting elements 37 of the first main light source and the light emitting elements 37 of the second main light source are lit independently. Each is electrically connected so that it can be controlled.

  The main light source 15 using the light emitting element 37 irradiates light in a range of, for example, 120 ° around the optical axis 38 that is a direction perpendicular to the center of the light emitting surface of the light emitting element 37 and has a light distribution peak.

  The main light source 15 is attached to the inner surface of the side plate 21 in the first direction a of the instrument body 12 by an attachment member 39. The main light source 15 is attached by the attachment member 39 so that the optical axis 38 of the light emitting element 37 is inclined at a predetermined angle with respect to the lower surface of the fixture body 12 toward the center of the light emitting surface 13D. The predetermined angle is set to, for example, 45 ° so that light from the light emitting element 37 is irradiated from the end side to the center side of the light emitting surface 13D.

  Accordingly, the main light sources 15 are provided on both end sides in the first direction a in the instrument body 12, respectively, opposed to the end side of the light emitting surface 13D, and centered on the end side of the light emitting surface 13D. Light is irradiated over the entire area. The luminous flux of one main light source 15 is about 3000 lm, for example, and the total luminous flux of the two main light sources 15 included in the illumination device 10 is about 6000 lm.

  The main light source 15 may be covered with a light source cover having light diffusibility in order to uniformly irradiate the light emitting surface 13D with light.

  Further, the auxiliary light sources 16 are provided along the second direction b at positions on both end sides in the first direction a in the instrument body 12.

  The sub light source 16 emits light having a light component different from the light emitted from the main light source 15. The light component light emitted by the sub-light source 16 includes, for example, a specific light color or color light of red, green, blue, or the like. In the present embodiment, the sub-light source 16 emits color light that can reproduce any color.

  A light emitting module 42 is used for the sub-light source 16. The light emitting module 42 includes a substrate 43 and a plurality of light emitting elements 44 mounted on the substrate 43. The substrate 43 is formed in a rectangular shape elongated in the second direction b of the instrument body 12, and a wiring pattern is formed on the surface thereof. The plurality of light emitting elements 44 are mounted on the wiring pattern of the substrate 43 in one or a plurality of rows in the center of the substrate 43 in the width direction with a predetermined interval along the longitudinal direction of the substrate 43. For the light emitting element 44, for example, a surface-mounted LED is used.

  The sub-light source 16 using the light emitting element 44 irradiates light in a range of, for example, 120 ° around the optical axis 45 that is a direction perpendicular to the center of the light emitting surface of the light emitting element 44 and has a light distribution peak.

  The auxiliary light source 16 is attached to the attachment member 39 together with the main light source 15. The main light source 15 is attached to the end side of the attachment member 39, whereas the sub-light source 16 is attached side by side with the main light source 15 at a position near the center of the attachment member 39.

  Accordingly, the auxiliary light sources 16 are provided on both end sides in the first direction “a” in the instrument main body 12, respectively, and face the intermediate region between the end region and the central region of the light emitting surface 13D, and the light emitting surface 13D. Irradiate light. The luminous flux of the secondary light source 16 is about 270 lm, for example. In order for the lighting device 10 to maintain the function of the main illumination by the light from the main light source 15 and to prevent the space from being discolored by the light from the sub light source 16, the luminous flux of the sub light source 16 is one main light beam. It is preferably smaller than the luminous flux of the light source 15, for example, 1/5 or less, more preferably 1/7 or less.

  The sub light source 16 may be covered with a light source cover having light diffusibility in order to uniformly irradiate the light emitting surface 13D with light.

  Further, as shown in FIGS. 1 to 3, the projection unit 17 is disposed on the upper part of the instrument body 12. The projection unit 17 is, for example, a projector that enlarges an image projected on a liquid crystal display using an optical system and projects the image using a projection lens 17a. The video data to be projected may be stored in the storage unit in the projection unit 17, or may be input from the outside.

  The projection unit 17 projects an image facing the central region of the light emitting surface 13D. In the present embodiment, it is disposed on one end side in the second direction b on the instrument main body 12. However, an image whose aspect ratio is corrected by an optical means such as a projection lens 17a is irradiated to emit light on the light emitting surface 13D. An image having no distortion can be projected over the entire central region. Note that the projection unit 17 may be disposed at the center on the instrument body 12 so as to project an image over the entire central region of the light emitting surface 13D.

  The main light source 15, the sub light source 16, and the projection unit 17 are in the positional relationship shown in FIGS. 1 and 6 with respect to the light emitting surface 13D. That is, the main light source 15 is provided so as to face the end regions at both ends of the light emitting surface 13D, and the auxiliary light source 16 is provided so as to face between the central region and the end region of the light emitting surface 13D. Projection unit 17 is provided to face the central region of surface 13D.

  Therefore, as shown in FIGS. 1 and 7, the end region at both ends of the light emitting surface 13D is a main light emitting region 13a irradiated with light from the main light source 15, and the central region of the light emitting surface 13D is from the projection unit 17. The region between the end region (main light emitting region 13a) and the central region (projection region 13b) of the light emitting surface 13D is the light from the main light source 15 and the projection unit 17. And an intermediate light emitting region (gradation region) 13c irradiated with the light from the sub-light source 16 together with the projection.

  Further, as shown in FIG. 8, the lighting device 10 includes a control unit 50 that controls the lighting device 10. The control unit 50 receives, for example, a control signal from the outside, supplies power to the main light source 15, and turns on the main light source 15. The sub power unit 52 supplies power to the sub light source 16, and turns on, and the projection unit 17. To control each.

  The main power supply unit 51 and the sub power supply unit 52 convert the AC power supply to a predetermined DC power supply, and supply the light to the light emitting element 37 of the main light source 15 and the light emitting element 44 of the sub light source 16 for lighting. Then, the main power supply unit 51 and the sub power supply unit 52 perform dimming and toning control on the main light source 15 and the sub light source 16 by the control by the processing of the control unit 50.

  The control unit 50 acquires and calculates image data to be projected by the projection unit 17, detects a desired color component that is intermediate between the color tone of the main illumination, as color component data, and sub-light sources according to the detected color component data 16 controls the color component of the emitted light. The color component data may be detected by detecting the color component data of the contour area of the projected video or the color component data from the entire video.

  FIG. 9 shows an illumination control system 60 using a plurality of illumination devices 10. The illumination control system 60 includes a control device 61, a plurality of illumination devices 10, and a signal line 62 that connects the control device 61 and each illumination device 10 so that they can communicate with each other. Then, the control device 61 sends a signal to each lighting device 10 to turn on, turn off, dimm and adjust the color of each lighting device 10 and cause the projection unit 17 to project an image.

  Next, the operation of the illumination device 10 will be described.

  When the main light source 15 is turned on, the light from the main light source 15 is irradiated around the main light emitting region 13a which is an end region of the light emitting surface 13D, and the light emitting surface 13D is illuminated. Light from the main light source 15 that passes through the light emitting surface 13D is irradiated onto the illumination space. In this case, the main light source 15 is provided on the end side of the fixture body 12, and the optical axis 38 of the main light source 15 is inclined toward the center of the lighting device 10, so that the embedded lighting device 10 Even if it exists, the light from the main light source 15 can be irradiated to the range of a wide light distribution angle.

  By operating the projection unit 17, the image is projected onto the projection region 13b that is the central region of the light emitting surface 13D. The projected image includes, for example, an image of the sky, an image of a tree or a sunbeam.

  When the secondary light source 16 is turned on, the light from the secondary light source 16 is applied to the intermediate light emitting region 13c between the end region and the central region of the light emitting surface 13D.

  The intermediate light emitting region 13c of the light emitting surface 13D exhibits gradation by overlapping the light from the main light source 15 irradiated on the light emitting surface 13D and the peripheral portion of the image projected from the projection unit 17, but depending on the image, , The outline of the image may appear clearly.

  The intermediate light emitting area 13c of the light emitting surface 13D is further irradiated with light of an intermediate color between the color tone of the image and the color tone of the main illumination from the sub light source 16 by the processing of the control unit 50, thereby blurring the outline of the image. Therefore, a natural gradation is exhibited between the light from the main light source 15 and the peripheral portion of the image projected from the projection unit 17.

  At this time, the intensity of light projected by the projection unit 17 and the intensity of light from the sub-light source 16 are weaker than the intensity of light from the main light source 15 irradiated to the illumination space. Therefore, the illumination space is mainly irradiated with light from the main light source 15, and for example, an illumination environment suitable for reading and working can be provided.

  Further, the control unit 50 acquires image data to be projected by the projection unit 17, for example, detects color component data of a contour area of a projected image, and outputs light emitted from the sub-light source 16 according to the detected color component data Control color components.

  For example, as shown in FIG. 10, when the image from the image unit 17 is rain and the light from the main light source 15 is white, the sub-light source 16 irradiates the light emitting surface 13D with the light emitting surface 13D. As a result, the intermediate light emitting region 13c between the projection region 13b on which rain is projected and the main light emitting region 13a on which white is irradiated exhibits a gradation with a color that does not cause a sense of incongruity.

  When the image from the video unit 17 is cherry blossom and the light from the main light source 15 is light bulb color, the sub light source 16 projects pink light to the intermediate light emitting area 13c of the light emitting surface 13D, so that the cherry blossom is projected. The projected area 13b and the main light emitting area 13a irradiated with the light bulb color exhibit a gradation with a color that does not cause a sense of incongruity.

  When the image from the video unit 17 is an evergreen tree and the light from the main light source 15 is an intermediate color between white and light bulb color, the secondary light source 16 emits a predetermined green light that is an intermediate color of those color component data. By irradiating the 13D intermediate light emitting region 13c, the projection region 13b on which the evergreen tree is projected and the main light emitting region 13a on which the intermediate color is irradiated exhibit a gradation with a color that does not cause a sense of incongruity.

  Note that the image projected by the projection unit 17 of the illumination device 10 and the light color emitted by the main light source 15 are switched by control from the control device 61.

  As described above, according to the illumination device 10 of the present embodiment, it is possible to obtain the light effect while maintaining the function of the main illumination by the light from the main light source 15.

  Furthermore, since the central area of the diffusion cover 13 is curved so as to be recessed inside the instrument body 12, it is easy to obtain a sense of depth and openness as if the image projected on the central area of the diffusion cover 13 is far away. The light effect can be improved.

  If the inner surface side of the side surface part 13B of the diffusion cover 13 is a mirror surface, a virtual image of the image projected on the central area of the diffusion cover 13 is reflected on the side surface part 13B, so that the image continues continuously in the back. This makes it easier to obtain a sense of depth and openness.

  By irradiating light from the sub-light source 16 to the intermediate light-emitting area 13c of the light-emitting surface 13D where the light from the main light source 15 and the image from the projection unit 17 overlap, The outline is blurred, and a natural gradation is exhibited between the light from the main light source 15 and the image from the projection unit 17.

  Even when no image is projected from the projection unit 17, the central region of the light emitting surface 13D can be irradiated with light from the sub-light source 16 so that the central region of the light emitting surface 13D does not become dark.

  In the illumination control system 60, for example, when a plurality of illumination devices 10 are arranged in a line, images projected on the light emitting surfaces 13D of the plurality of illumination devices 10 can be linked. For example, when projecting an image of a bird flying in the sky, by displaying the images sequentially from the lighting device 10 on one end toward the lighting device 10 on the other end, the impression that birds are flying continuously is obtained. Can be given.

  Further, the brightness of the main light source 15 and the sub light source 16 may be controlled according to the brightness (brightness) of the image projected by the projection unit 17. For example, when the projection unit 17 projects a starry sky image, the image itself is mainly black, and the brightness (brightness) decreases. In this case, the main light source 15 is turned off (off), The light source 16 may irradiate with low illuminance using color component data that matches the color tone of a star or the sky.

  Next, FIG. 11 shows a second embodiment. In addition, about the same structure as 1st Embodiment, the description about the structure and effect is abbreviate | omitted using the same code | symbol.

  As the projection unit 17, a monitor 70 such as a liquid crystal display or an organic EL display is used. The screen 71 of the monitor 70 is opposed to the central area of the light emitting surface 13D.

  Then, the image projected on the screen 71 of the monitor 70 is projected onto the central area (projection area 13b) of the light emitting surface 13D.

  Also in this case, the light from the main light source 15 and the image from the monitor 70 are overlapped in the intermediate light emitting region 13c of the light emitting surface 13D, and the light from the sub light source 16 is further added to the intermediate light emitting region 13c of the light emitting surface 13D. , Even if the image is cut off at both ends of the screen 71, the contour of the image is blurred, and a natural gradation is exhibited between the light from the main light source 15 and the image from the monitor 70.

  In each embodiment, the diffusion cover 13 may be formed in a spherical shape that curves toward the periphery with the center at the top. In this case, the peripheral portion of the diffusion cover 13 may be either a square shape or a circular shape. Furthermore, the main light source 15 may be provided in the entire peripheral area of the side surface of the instrument body 12 so that the diffusion cover 13 is irradiated with white light from the outer diameter side of the diffusion cover 13.

  Further, the diffusion cover 13 may have a flat plate shape, or may be curved so that the central region 13a protrudes from the instrument body 12.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

10 Lighting equipment
13D light emitting surface
15 Main light source
16 Secondary light source
17 Projector
50 Control unit
60 Lighting control system
61 Controller

Claims (3)

A light emitting surface;
A main light source for irradiating light on a predetermined area of the light emitting surface;
A projection unit that projects an image on a region adjacent to a region where the main light source of the light emitting surface emits light;
A sub-light source that emits light of a predetermined color component between a region where the main light source of the light emitting surface emits light and a region where the projection unit projects an image;
An illumination device comprising: 2. A control unit that detects color component data from video data projected by the projection unit and controls a color component of light emitted by the sub-light source according to the detected color component data. The lighting device described. An illumination device according to claim 2;
A control device that communicates with the plurality of illumination devices and transmits video data to the plurality of illumination devices;
An illumination control system comprising: