JP2012047019A - Pseudo window device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pseudo window device which produces radiation light further similar to that of a real window and has an appearance causing no odd feeling.SOLUTION: The pseudo window device uses at least: one first luminescence source having a first semiconductor luminescence element and a first wavelength conversion member that converts the wavelength of the light emitted from the first semiconductor luminescence element to radiate white light at a first color temperature; and at least one second luminescence source having a second semiconductor luminescence element and a second wavelength conversion member that converts the wavelength of the light emitted from the second semiconductor luminescence element to radiate white light at a second color temperature higher than the first color temperature. Drive currents of the first and the second semiconductor luminescence elements are controlled, so that white light produced through synthesis of each white light emitted from the first and the second luminescence sources is radiated outward from a light radiation window formed of a window frame member. On this occasion, a light screening member is arranged at the outside of the light radiation window so as to shield a portion of the white light radiated from the light radiation window and allow the remainder to pass through.

Description

  The present invention relates to a pseudo-window device that is provided on an indoor wall surface or the like and can appear as if a window actually exists.

  In a room such as a basement where a window cannot be provided on the wall surface of the room, there may be a feeling of blockage or pressure and workability may be reduced, or the mental burden may be increased. Therefore, in order to eliminate such a feeling of occlusion and pressure, a pseudo window device that can appear as if a window actually exists has been developed and proposed.

  For example, Patent Document 1 discloses a pseudo-window device that displays a landscape video using a video display device such as a plasma display or a liquid crystal display. In the pseudo-window device of Patent Document 1, an illumination device is provided that uses a light source such as an incandescent lamp or a fluorescent lamp to irradiate light to a perimeter portion around the video display device. The light source is controlled in accordance with the luminance of the landscape video displayed on the video display device, and the illuminance of the perimeter portion is adjusted so as to harmonize with the landscape video.

  Patent Document 2 also discloses a pseudo window device similar to Patent Document 1. In the pseudo window device of Patent Document 2, a light window illumination device using a light source such as an incandescent lamp, a fluorescent lamp, or a cold cathode tube is provided on both sides of the video display device. Then, the light source is controlled in accordance with the luminance of the landscape video displayed on the video display device, and the luminance of the light window illumination device is adjusted to harmonize with the landscape video.

  Further, Patent Document 3 discloses a pseudo window device in which a red fluorescent lamp, a green fluorescent lamp, and a blue fluorescent lamp are arranged as light sources behind a diffuser to form a light box, and the light box and a window frame are combined. Has been. Then, by combining light from these light sources, the color temperature and color of the light emitted from the light box are changed according to the time and the like. It is also stated that an LED may be used as the light source.

JP 2008-202283 A JP 2008-223347 A Special table 2008-545904 gazette

  Since both the pseudo-window devices of Patent Documents 1 and 2 display a landscape video using a video display device, the cost increases and the structure becomes complicated. In addition, the light window illumination device used in combination with the pseudo-window device of Patent Document 2 has a light emission surface exposed directly to the outside. Therefore, even if the luminance is adjusted according to the luminance of the landscape image, There is a sense of incongruity with the window, and there is a limit to harmony with the landscape image displayed on the image display device.

  In the pseudo window device of Patent Document 3, it is suggested that a curtain or a thin screen may be used in combination with the pseudo window device, and the problems such as the above-described pseudo window device of Patent Documents 1 and 2 are solved to some extent. Although it may be possible, since a fluorescent lamp is used as a light source, there are places where it is not preferable from the viewpoint of the environment.

  Moreover, in the pseudo window apparatus of patent document 3, it is supposed that LED may be used for a light source instead of a fluorescent lamp, and it becomes possible to suppress power consumption by this. However, the light emitted directly from the LED has higher directivity than a fluorescent lamp or the like, and in order to radiate from the pseudo-window device after combining light of three colors of red, green and blue well, the LED A certain distance is required between the light emitting surface of the pseudo-window device. In the pseudo-window device of Patent Document 3, since the LED is arranged behind the light emitting surface, when the appearance is the same as that of an actual window, white light close to natural light cannot be obtained due to lack of depth, and there is a sense of incongruity. May occur. On the other hand, when the depth is increased in order to eliminate such a problem, there is a problem that it becomes unnatural as a window provided on the indoor wall and the weight also increases.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a pseudo-window device that obtains radiated light closer to an actual window and has no sense of incongruity in appearance as compared with the prior art. There is.

  In order to achieve the above object, a pseudo window device of the present invention includes a window frame member that forms a light emission window surrounded by a window frame, a first semiconductor light emitting element that emits light by supplying a first drive current, and the first At least one first light-emitting source having a first wavelength conversion member that converts the wavelength of all or part of the light emitted from the semiconductor light-emitting element to emit white light having a first color temperature; A second semiconductor light emitting element that emits light upon supply, and a second light that emits white light having a second color temperature higher than the first color temperature by wavelength-converting all or part of the light emitted by the second semiconductor light emitting element. At least one second light emitting source having a wavelength conversion member, drive control means for controlling the first drive current and the second drive current, and provided outside the light emission window so as to face the light emission window Part of the white light emitted from the light emission window Characterized in that a light shielding member for passing the remainder with shields.

  According to the pseudo-window device configured as described above, in the first light emission source, all or a part of the light emitted from the first semiconductor light emitting element is wavelength-converted by the first wavelength conversion member, and the white color having the first color temperature is obtained. Light is emitted. On the other hand, in the second light emitting source, all or part of the light emitted from the second semiconductor light emitting element is wavelength-converted by the second wavelength conversion member, and white light having a second color temperature higher than the first color temperature is emitted. When each of the first light source and the second light source emits light, the first color temperature white light emitted from the first light source and the second color temperature white light emitted from the second light source are combined to form a window frame. The light is emitted outward from the light emission window of the member. Part of the white light emitted from the light emission window is shielded by the light shielding member provided facing the light emission window, and the remaining part is transmitted through the light shielding member.

  Thus, when the white light is emitted from the light emission window of the window frame member, the drive control means controls the first drive current and the second drive current. At this time, the intensity of the white light having the first color temperature emitted from the first light emission source is determined according to the magnitude of the first drive current, and is emitted from the second light emission source according to the magnitude of the second drive current. The intensity of the white light having the second color temperature is determined. Therefore, for example, by controlling the ratio between the first driving current and the second driving current, and adjusting the ratio between the intensity of the white light at the first color temperature and the intensity of the white light at the second color temperature, the light emission The color temperature of the white light emitted from the window can be adjusted between the first color temperature and the second color temperature. On the other hand, if the first drive current and the second drive current are increased or decreased in the same direction, the luminance of the white light emitted from the light emission window can be adjusted.

  In such a pseudo-window device, white light obtained by synthesizing white light emitted from the first light emission source and white light emitted from the second light emission source is emitted outward from the light emission window of the window frame member. You may make it further provide the light guide member made to radiate toward.

  In this case, when each of the first light source and the second light source emits light, white light obtained by combining the white light having the first color temperature emitted from the first light source and the white light having the second color temperature emitted from the second light source. Is emitted outward from the light emission window of the window frame member by the light guide member.

  The light guide member is provided in a light emission window of the window frame member in a plate shape, for example, and is obtained by combining white light emitted from the first light emission source and white light emitted from the second light emission source. It may be a translucent diffusing member that diffuses white light and radiates outward from the light emitting window.

  When the light guide member is configured in this way and a plurality of first light emission sources and second light emission sources are used, respectively, the first and second light emission sources are provided in the light emission window of the window frame member. You may make it arrange | position along the said diffusion member inward from a diffusion member.

  Furthermore, in this case, it is preferable that the first light emission source and the second light emission source are mixed and distributed with each other.

  Alternatively, the first light emission source and the second light emission source are respectively disposed inward of the window frame member along the window frame of the window frame member, and the light guide member includes the first light emission source and the second light emission source. You may make it have a light guide reflective surface which reflects the white light from a 2nd light emission source, and guides it to the said light emission window.

  Alternatively, each of the first light emission source and the second light emission source is disposed inward of the window frame member along the window frame of the window frame member, and the light guide member is formed on the window frame member. It may be arranged inward from the light emission window, and may have an uneven surface that diffuses and reflects white light from the first light emission source and the second light emission source toward the light emission window.

  As described above, when the first light emission source and the second light emission source are respectively disposed inside the window frame member along the window frame of the window frame member, a plurality of the first light emission sources and the second light emission sources are provided. A source may be disposed along the window frame member.

  In this case, it is preferable that the first light emission source and the second light emission source are mixed and distributed.

  In the case of a pseudo window device including a plurality of pairs of the first light emission source and the second light emission source, the drive control means is the first light emission source serving as a light source of white light emitted from the first region of the light emission window. And a first ratio of the first drive current and the second drive current supplied to the pair of second light emitting sources, and a second region of the light emission window that is below the first region when the pseudo window device is used. The second ratio of the first drive current and the second drive current supplied to the pair of the first light emission source and the second light emission source, which are the light sources of white light emitted from the light source, may be made different. Good.

  When the drive control means performs such control, the first drive current and the second area of the light emission window are reduced between the first area of the light emission window and the second area of the light emission window that is lower than the first area when the pseudo window device is used. Since the ratio with the two drive currents is different, the white light emitted from the first region of the light emission window has a color temperature different from the color temperature of the white light emitted from the second region.

  Specifically, in this case, the drive control unit is configured so that the color temperature of the white light emitted from the first region is higher than the color temperature of the white light emitted from the second region. The ratio between the first drive current and the second drive current may be controlled.

  Further, as described above, in the case where the color temperature of the emitted white light is controlled to be different between the first region and the second region, the drive control unit may change the first ratio and the second according to time. You may make it change at least one of a ratio.

  By performing such control, white light having a different color temperature is emitted from the first region and the second region of the light emission window, and at least one of the first region and the second region of the light emission window. The color temperature of the emitted white light changes according to the time.

  The drive control means controls the ratio between the first drive current and the second drive current, and controls the brightness of white light emitted from the first region and the white light emitted from the second region. You may make it control the magnitude | size of the said 1st drive current and a 2nd drive current so that the brightness | luminance of light may differ.

  Further, when the drive control means controls the first drive current and the second drive current to emit white light from the light emission window of the window frame member, specifically, according to the time, the first drive current and The ratio with the second drive current may be controlled.

  By performing such control, the color temperature of the white light emitted from the pseudo window device can be changed according to time.

  Further, at this time, the white light emitted from the first light emission source and the white light emitted from the second light emission source are synthesized in combination with the control of the ratio between the first drive current and the second drive current. The magnitudes of the first drive current and the second drive current may be controlled so that the luminance of white light changes.

  As a specific configuration of the first light emission source and the second light emission source, the first light emission source and the second light emission source each constitute a light emitting module by being paired with each other integrally. The light emitting module includes a substrate on which the first semiconductor light emitting element and the second semiconductor light emitting element are mounted, a wall member that surrounds the first semiconductor light emitting element and the second semiconductor light emitting element and is provided on the substrate, A partition member that divides an inner region of the wall member into a first light emitting region in which the first semiconductor light emitting element is disposed and a second light emitting region in which the second semiconductor light emitting element is disposed; You may make it provide the said 1st wavelength conversion member accommodated in the light emission area | region, and the said 2nd wavelength conversion member accommodated in the said 2nd light emission area | region.

  In this case, one or a plurality of the first semiconductor light emitting elements may be disposed in the first light emitting region, and one or a plurality of second semiconductor light emitting elements may be disposed in the second light emitting region.

  In the pseudo window device described above, specifically, the first semiconductor light emitting element and the second semiconductor light emitting element may emit light having a peak wavelength in a wavelength range of 380 nm to 430 nm.

  More specifically, the light shielding member may be any one selected from the group of curtains, blinds, shutters, shojis, warmths, and lattices.

  According to the pseudo window device of the present invention, the drive control means controls the first drive current supplied to the first light emission source and the second drive current supplied to the second light emission source, so that the light emission of the window frame member is performed. It becomes possible to adjust the color temperature or brightness of the white light emitted from the window. The white light emitted from the light emission window of the window frame member is partially shielded by the light shielding member and the remainder passes through the light shielding member, so that the color temperature or luminance adjustment as described above is performed. In combination with this, it is possible to provide a pseudo-window device that does not feel uncomfortable as compared with a case where all the light emission windows of the window frame member are exposed to the outside and white light is directly emitted.

  The first semiconductor light emitting element emits white light having the first color temperature by converting the wavelength of all or part of the light emitted from the first semiconductor light emitting element by the first wavelength conversion member, and the second semiconductor light emitting element emits light. The light emitted from a semiconductor light emitting element such as an LED is used because the second light emitting source that emits white light of the second color temperature by converting the wavelength of all or part of the light by the second wavelength converting member is used as the light source. Compared to the conventional pseudo window device that obtains white light by synthesizing itself, the first and second light emitting sources can provide white light with excellent diffusibility while suppressing directivity. Therefore, compared to the conventional pseudo window device, it is possible to shorten the distance necessary for satisfactorily synthesizing the white light from the first and second light emitting sources. As a result, it is not necessary to unnaturally enlarge the dimensions such as the depth of the pseudo window device as a window, and it is possible to obtain a pseudo window device that does not feel uncomfortable in appearance.

  Furthermore, it is possible to obtain a sensation close to that of an actual window while the structure is simple and the cost is lower than that of a pseudo window device using an image display device. In addition, by adopting a light source using a semiconductor light emitting element as described above, it is possible to keep power consumption low compared to a conventional pseudo window device using a fluorescent lamp or an incandescent lamp as a light source.

  Further, when the translucent diffusing member having a plate shape is provided as the light guide member in the light emission window of the window frame member, the first and second light emitting sources are hidden by the translucent diffusing member. The first and second light emission sources are difficult to see or disappear, and the appearance of the pseudo-window device is improved. Further, the white light from the first and second light sources is further satisfactorily synthesized by this diffusing member.

  As described above, the first and second light emission sources are difficult to see or disappear from the outside. Therefore, when a plurality of first light emission sources and second light emission sources are used, the first light emission source and the second light emission source are changed. Further, it can be disposed along the diffusion member inward of the diffusion member provided in the light emission window of the window frame member. By arranging in this way, white light from the first light source and the second light source can be efficiently introduced into the diffusing member.

  Furthermore, in this case, if a plurality of first light emission sources and second light emission sources are mixed and dispersed, the white light emitted from the first light emission source and the second light emission source is further reduced. It becomes possible to synthesize well.

  In addition, if the first light emission source and the second light emission source are respectively disposed inside the window frame member along the window frame of the window frame member, the first and second light emission from the outside by the window frame of the window frame member. Since the source is difficult or invisible, the pseudo-window device looks better. In this case, by using a light guide member having a light guide reflection surface that reflects white light from the first light emission source and the second light emission source and guides the white light to the light emission window, the first light emission source and the second light emission source are used. The white light from the light emitting source can be well guided to the light emission window and emitted outward from the light emission window.

  Further, when the first light source and the second light source are respectively disposed inside the window frame member along the window frame of the window frame member, the light emission of the window frame member is used instead of the light guide member. If a light guide member having an uneven surface that is disposed inward from the window and diffuses and reflects white light from the first light source and the second light source toward the light emission window is used, The white light from the light emission source and the second light emission source can be emitted outward from the light emission window while being better diffused and combined.

  As described above, when the first light emission source and the second light emission source are respectively disposed inside the window frame member along the window frame of the window frame member, a plurality of the first light emission sources and the second light emission sources are provided. Is arranged along the window frame of the window frame member, it is possible to suppress the occurrence of unnecessary unevenness in the white light emitted from the light emission window.

  At this time, if a plurality of first light emission sources and second light emission sources are mixedly distributed with each other, the white light emitted from the first light emission source and the second light emission source can be combined better. It becomes possible to do.

  In an actual window that can take in light from the outside, white light having a uniform color temperature does not always enter the room on the entire surface of the window depending on the outdoor environment and time zone. Therefore, in the pseudo-window device provided with a plurality of first light source and second light source, respectively, a pair of the first light source and the second light source serving as a light source of white light emitted from the first region of the light emission window. The first ratio of the first drive current and the second drive current supplied to the first and second light sources of white light emitted from the second region of the light emission window below the first region when the pseudo window device is used. If the second ratio of the first drive current and the second drive current supplied to the pair of the first light emission source and the second light emission source is made different, the first region and the second region of the light emission window are different. Since white light having a different color temperature is emitted, it is possible to obtain a feeling closer to an actual window.

  Specifically, when the pseudo window device is used, if the white light emitted from the first region has a higher color temperature than the white light emitted from the second region, the actual window is further layered. A close sense can be obtained. In particular, in the morning or evening, the difference in color temperature in the vertical direction in the actual window increases, so that such control is particularly effective, and a feeling close to that of the actual window can be obtained.

  In an actual window that can capture light from the outside, the color temperature of white light that enters the room varies depending on the time of day. Therefore, by controlling the ratio of the first driving current and the second driving current supplied to the first light emitting source and the second light emitting source according to the time, the color temperature of the white light emitted from the pseudo-window device is set. Since the color temperature of the white light obtained from the actual window can be approached at that time, a sense closer to the actual window can be obtained.

  In particular, as described above, when white light having different color temperatures is emitted in the first region and the second region of the light emission window, at least one of the first ratio and the second ratio is changed according to time. In this case, the color temperature of white light emitted from the pseudo-window device is distributed similar to the color temperature of white light obtained from the actual window, and the color of the white light obtained from the actual window at that time. Since the temperature can be approached, a sensation closer to the actual window can be obtained.

  In the case of an actual window, the brightness of the incident white light also changes depending on the time zone, season, weather, or the like. Therefore, when adjusting the color temperature of the white light emitted from the pseudo window device by controlling the ratio between the first drive current and the second drive current, the luminance of the white light emitted from the pseudo window device is also combined. If controlled, it becomes possible to obtain a feeling closer to that of an actual window. In particular, as described above, when white light having different color temperatures is radiated in the first region and the second region of the light emission window, the brightness of the white light from the first region and the white light from the second region is increased. If it is made different, it becomes possible to obtain a feeling closer to an actual window.

  When the first and second light emitting sources are provided in pairs and integrated with each other to form a light emitting module, the first and second light emitting sources can be handled easily. This is particularly advantageous when a plurality of two light emitting sources are used in combination.

  In particular, when a plurality of first and second semiconductor light emitting elements are used, by configuring the light emitting module in this manner, the first and second semiconductor light emitting elements can be used individually by using the first and second semiconductor light emitting elements. Compared with the case where it comprises separately, the effect becomes remarkable and the reduction effect of manufacturing cost becomes large.

  If any one selected from the group of curtains, blinds, shutters, shoji, warmth, and lattices is used as the light shielding member, it is possible to obtain a feeling closer to an actual window.

It is a perspective view showing the whole pseudo window device composition concerning the 1st example of the present invention. It is a schematic front view of the pseudo window device of FIG. It is a schematic sectional drawing of the pseudo window apparatus which follows the III-III line in FIG. It is a perspective view which shows the whole structure of the light emitting module used for a pseudo window apparatus. It is a schematic plan view of the light emitting module of FIG. It is a schematic sectional drawing of the light emitting module which follows the VI-VI line in FIG. It is a graph which shows the black body radiation locus in a CIE (1931) XYZ color system chromaticity diagram. It is a principal part enlarged view of FIG. 7 which shows the chromaticity change of the emitted light of the light emitting module used for a pseudo window apparatus. It is an electric circuit diagram which shows the outline of the electric circuit structure of the light emitting module and drive unit which are used for a pseudo window apparatus. 10 is a time chart showing an example of an operating state of each transistor and an example of a driving current of each semiconductor light emitting element in the electric circuit configuration of FIG. 9. 10 is a time chart showing another example of the operating state of each transistor and the driving current of each semiconductor light emitting element in the electric circuit configuration of FIG. 9. 10 is a time chart showing another example of the operating state of each transistor and the driving current of each semiconductor light emitting element in the electric circuit configuration of FIG. 9. It is a control block diagram of a pseudo window device. It is a flowchart of the light emission control which the integrated control part of a pseudo window apparatus performs. It is a table | surface which shows an example of the color temperature and the brightness | luminance of the emitted light set for every window area | region in each mode of the light emission control which the integrated control part of a pseudo | simulation window apparatus performs. It is a graph which shows another example of the color temperature and the brightness | luminance of the emitted light set for every window area | region by the light emission control which the integrated control part of a pseudo | simulation window apparatus performs. It is a perspective view which shows the modification of the pseudo | simulation window apparatus of FIG. It is a schematic front view of the artificial window apparatus which concerns on 2nd Example of this invention. It is a schematic sectional drawing of the pseudo window apparatus which follows the XIX-XIX line in FIG. It is a schematic front view of the artificial window apparatus which concerns on 3rd Example of this invention. It is a schematic sectional drawing of the pseudo window apparatus which follows the XXI-XXI line | wire in FIG. It is a schematic sectional drawing which shows typically the light emission source used with the pseudo | simulation window apparatus which concerns on 4th Example of this invention. It is a schematic diagram which shows an example of arrangement | positioning of the light emission source in the pseudo | simulation window apparatus using the light emission source of FIG.

  Hereinafter, embodiments of the present invention will be described in detail based on some examples with reference to the drawings. In addition, this invention is not limited to the content demonstrated below, In the range which does not change the summary, it can change arbitrarily and can implement. In addition, the drawings used for the description of each embodiment schematically show a pseudo window device according to the present invention, and are partially emphasized, enlarged, reduced, or omitted to deepen understanding. However, it does not accurately represent the scale or shape of each component. Furthermore, the various numerical values used in each embodiment are merely examples, and can be variously changed as necessary.

<First embodiment>
FIG. 1 is a perspective view showing an overall configuration of a simulated window device 1 according to a first embodiment of the present invention, FIG. 2 is a schematic front view of the simulated window device 1, and FIG. 3 is a line III-III in FIG. It is a schematic sectional drawing of the pseudo window apparatus 1 in alignment with. Below, the whole structure of a pseudo window apparatus is first demonstrated in detail using these FIGS. 1-3.

(Overall configuration of the pseudo-window device)
The simulated window device 1 is provided on an indoor wall surface or the like to simulate an actual window. As shown in FIG. 1, a pseudo-radiation window surrounded by a window frame is formed and attached to the indoor wall surface or the like. A window frame member 2 and a translucent milky white diffusion plate (light guide member, diffusion member) 3 attached to a light emission window formed by the window frame member 2 are provided. As shown in FIG. 2, the window frame of the window frame member 2 that surrounds the light emission window includes a first horizontal window frame portion 2a and a second horizontal window frame portion 2b that extend in the horizontal direction, and a vertical direction. The first vertical window frame portion 2c and the second vertical window frame portion 2d are provided to extend. As shown in FIG. 1, a curtain (light shielding member) 4 made of a lace-like cloth is provided outside the diffusion plate 3 along the first horizontal window frame portion 2 a of the window frame member 2. 5, and covers almost the entire area of the light emission window on which the diffusion plate 3 is mounted in a state of being separated from the diffusion plate 3.

  White light is emitted from the diffusion plate 3 attached to the light emission window toward the outside of the pseudo window device 1 as will be described in detail later. Since it is formed, a part of the white light emitted from the diffusion plate 3 is shielded by the curtain 4, and the remaining part passes through the gap between the curtain 4 and the diffusion plate 3 or the window frame member 2 and the curtain 4 itself. And then radiate outward.

  In this embodiment, the curtain 4 can be opened and closed along the curtain rail 5 as shown in FIG. 1, but it is not possible to open and close, but almost the entire area of the light emission window on which the diffusion plate 3 is mounted. It may be left covered or partially openable / closable. Further, the material of the curtain 4 is not limited to the lace-like cloth, and the gap between the curtain 4 and the diffusion plate 3 or the window frame member 2 or the curtain 4 itself is passed as described above. Any white light emitted from the diffusion plate 3 may be emitted to the outside partially. Furthermore, in this embodiment, the curtain 4 is provided in a state of being separated from the diffusion plate 3, but at least a part of the curtain 4 may be in contact with the diffusion plate 3.

  As described above, FIG. 2 is a schematic front view of the pseudo-window device 1, but the curtain 4 is indicated by a two-dot chain line for convenience. 3 is a schematic cross-sectional view of the pseudo window device 1 taken along the line III-III in FIG. 2, but the illustration of the curtain 4 is omitted in FIG. In the following description, the side of the pseudo window device 1 on which the curtain 4 is provided, that is, the right side in FIG. 3 will be referred to as the front, and the side opposite to the curtain 4, ie, the left side in FIG. Moreover, the upper direction in FIG. 3 shall be an upper direction when the pseudo window apparatus 1 of a present Example is actually attached and used for a wall surface.

  As shown in FIG. 3, the window frame member 2 is formed in a box shape having an opening portion as a light emission window 2e, and the diffusion plate 3 is attached to the light emission window 2e as described above. A holding substrate 7 on which a plurality of light emitting modules 6 serving as light sources of the pseudo window device 1 are mounted is arranged behind the diffusion plate 3 that is inward of the pseudo window device 1 from the diffusion plate 3. It is fixed to the inner back surface 2f via a plurality of spacers 8. On the holding substrate 7, 16 light emitting modules 6 form one row in the vertical direction, and this row is arranged in 24 rows in the horizontal direction. As shown in FIG. When viewed, the window frame member 2 is disposed so as to cover the entire light emission window 2e formed. The holding substrate 7 is provided with a wiring pattern (not shown) for forming an electric circuit as will be described later and supplying a driving current to each of the mounted light emitting modules 6.

  In addition, the number of the light emitting modules 6 in the present embodiment is merely an example, and can be variously changed according to the size of the pseudo window device 1, the required luminance of the emitted light, the light emitting characteristics of the light emitting module 6, and the like. Is possible. Further, the arrangement of the light emitting modules 6 in this embodiment is also an example, and can be variously changed. That is, it may not be disposed over the entire diffusion plate 3 attached to the light emission window 2e formed by the window frame member 2, or may not be disposed uniformly as in the present embodiment. However, in order to radiate white light that hardly causes unnecessary unevenness from the diffusion plate 3, it is preferable that the diffusion plate 3 is uniformly arranged as in the present embodiment.

  Thus, in this embodiment, when viewed from the front of the pseudo window device 1, the light emitting module 6 is arranged so as to cover the entire light emission window 2e formed by the window frame member 2. Therefore, by attaching the translucent and milky white diffusion plate 3 to the light emitting window 2e, the light emitting module 6 is concealed so that the light emitting module 6 cannot be directly seen from the outside. Has improved. In addition, by arranging each light emitting module 6 so as to face the diffusion plate 3 in this way, white light emitted from each light emitting module 6 is efficiently introduced into the diffusion plate 3.

  In this embodiment, the light emission window 2e formed by the window frame member 2 is capable of emitting white light having different characteristics in the vertical direction, as shown in FIG. It is divided into four areas: area A, window area B, window area C, and window area D. Note that the emission of white light having different characteristics will be described in detail later.

(Structure of light emitting module)
4 is a perspective view showing an overall configuration of the light emitting module 6 used in the pseudo window device 1, FIG. 5 is a schematic plan view of the light emitting module 6, and FIG. 6 is a light emitting module 6 along the line VI-VI in FIG. It is a schematic sectional drawing which shows typically a cross section. The configuration of the light emitting module 6 will be described in detail with reference to FIGS.

  The light emitting module 6 includes four first semiconductor light emitting elements 11 and four second semiconductor light emitting elements 12. The first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 are mounted on the light emitting element mounting surface 10a of the substrate 10 made of alumina ceramic having excellent electrical insulation and good heat dissipation. On the light emitting element mounting surface 10 a of the substrate 10, an annular and truncated cone-shaped reflector (wall member) 13 is provided so as to surround the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12. The inner side of the reflector 13 is divided into a first light emitting region 15 and a second light emitting region 16 by a partition member 14. The reflector 13 and the partition member 14 can be formed of resin, metal, ceramic, or the like, and are fixed to the substrate 10 using an adhesive or the like. In addition, when using the material which has electroconductivity for the reflector 13 and the partition member 14, the process for giving electrical insulation with respect to the wiring pattern mentioned later is required.

  In addition, the number of the 1st semiconductor light emitting elements 11 and the 2nd semiconductor light emitting elements 12 in the light emitting module 6 of this embodiment is an example, Comprising: It can increase / decrease as needed, Each can also be made into one each It is. Further, the material of the substrate 10 is not limited to the alumina-based ceramic, and various materials can be applied, for example, ceramic, resin, glass epoxy, composite resin containing filler in the resin, or the like. A selected material may be used. Alternatively, in order to improve the light emission efficiency of the light emitting module 6 by improving the light reflectivity on the light emitting element mounting surface 10a of the substrate 10, a silicone resin containing a white pigment such as alumina powder, silica powder, magnesium oxide, titanium oxide or the like. Is preferably used. Furthermore, it is possible to improve heat dissipation by using a metal substrate such as a copper substrate or an aluminum substrate. However, in this case, it is necessary to form a wiring pattern on the substrate 10 with electrical insulation therebetween.

  Moreover, the shape of the reflector 13 and the partition member 14 mentioned above also shows an example, and can be variously changed as needed. For example, instead of the reflector 13 and the partition member 14 formed in advance, an annular wall portion (wall member) corresponding to the reflector 13 is formed on the light emitting element mounting surface 10a of the substrate 10 using a dispenser, and then the partition member 14 is used. A partition wall (partition member) corresponding to may be formed. In this case, examples of the material used for the annular wall portion and the partition wall portion include a paste-like thermosetting resin material or a UV curable resin material, and a silicone resin containing an inorganic filler is preferable.

  As shown in FIGS. 4 and 5, in the first light emitting region 15 in the reflector 13, four first semiconductor light emitting elements 11 are arranged in a row in parallel with the extending direction of the partition member 14. In the second light emitting region 16 in the reflector 13, four second semiconductor light emitting elements 12 are arranged in a line in the same direction as the arrangement direction of the first semiconductor light emitting elements 11. In FIG. 5, the reflector 13 and the partition member 14 are indicated by broken lines for convenience.

  On the light emitting element mounting surface 10a of the substrate 10, there are formed a wiring pattern 17 and a wiring pattern 18 for constituting a later-described electric circuit and supplying a driving current to each of the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12. 5 is formed as shown in FIG. The wiring pattern 17 has a connection land 17a for external connection formed at one end thereof, and a first end parallel to the extending direction of the partition member 14 as shown in FIG. A semiconductor light emitting element mounting portion 17b is extended. The connection land 17 a is located outside the reflector 13, while the first semiconductor light emitting element mounting portion 17 b is disposed in the first light emitting region 15 in the reflector 13. In addition, the wiring pattern 17 is provided with a second semiconductor light emitting element mounting portion 17 c that branches from an intermediate portion located in the second light emitting region 16 in the reflector 13 and extends in parallel with the extending direction of the partition member 14. .

  On the other hand, the wiring pattern 18 is formed with a connection land 18a for external connection at one end thereof, and the first semiconductor light emitting element mounting of the wiring pattern 17 as shown in FIG. A first semiconductor light emitting element mounting portion 18b extends in parallel with the portion 17b. The connection land 18 a is located outside the reflector 13, while the first semiconductor light emitting element mounting portion 18 b is disposed in the first light emitting region 15 in the reflector 13. The wiring pattern 18 branches from an intermediate portion located in the second light emitting region 16 in the reflector 13 and extends in parallel with the second semiconductor light emitting element mounting portion 17c of the wiring pattern 17. Is provided.

  The connection land 17a provided in the wiring pattern 17 as described above is provided with a metal connection pin 19 that penetrates the substrate 10 and protrudes to the surface 10b opposite to the light emitting element mounting surface 10a. The land 17a and the connection pin 19 are electrically connected. Similarly, the connection lands 18a provided in the wiring pattern 18 are provided with metal connection pins 20 protruding from the surface 10b of the substrate 10, and the connection lands 18a and the connection pins 20 are electrically connected. Yes. The connection lands 17a and 18a and the connection pins 19 and 20 are connected by soldering, caulking, welding, welding, or pressure bonding.

  The connection pins 19 provided on the connection lands 17a and the connection pins 20 provided on the connection lands 18a attach the light emitting module 6 to the holding substrate 7 as described above, and the wiring pattern formed on the holding substrate 7 and Used to electrically connect the connection lands 17a and 18a. Specifically, after inserting the connection pins 19 and 20 into insertion holes (not shown) provided in the wiring pattern of the holding substrate 7, the connection pins 19 and 20 are connected to the wiring pattern of the holding substrate 7 by soldering. To do. The electric circuit formed by such connection will be described in detail later.

  The four first semiconductor light emitting elements 11 are arranged in parallel between the first semiconductor light emitting element mounting portion 17b of the wiring pattern 17 and the first semiconductor light emitting element mounting portion 18b of the wiring pattern 18 with the same polarity direction. It is connected. The four second semiconductor light emitting elements 12 have the same polarity direction between the second semiconductor light emitting element mounting portion 17c of the wiring pattern 17 and the second semiconductor light emitting element mounting portion 18c of the wiring pattern 18. Connected in parallel.

  More specifically, each of the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 has two electrodes (not shown) for supplying drive current on the substrate 10 side. Each of the first semiconductor light emitting elements 11 has one electrode (for example, p electrode) connected to the first semiconductor light emitting element mounting portion 17b of the wiring pattern 17 and the other electrode (for example, n electrode) wired. The pattern 18 is connected to the first semiconductor light emitting element mounting portion 18b. Each second semiconductor light emitting element 12 has one electrode (for example, p electrode) connected to the second semiconductor light emitting element mounting portion 18c of the wiring pattern 18 and the other electrode (for example, n electrode) wired. The pattern 17 is connected to the second semiconductor light emitting element mounting portion 17c.

  The mounting of the first semiconductor light emitting device 11 and the second semiconductor light emitting device 12 and the connection of both electrodes to the wiring patterns 17 and 18 employ flip chip mounting, and eutectic solder via metal bumps (not shown). Is going through. The mounting method of the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 on the substrate 10 is not limited to this, and an appropriate method is selected according to the type and structure of the semiconductor light emitting elements. Is possible. For example, after the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 are bonded and fixed to predetermined positions on the substrate 10 as described above, the respective electrodes of the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 are attached. You may employ | adopt the double wire bonding connected to the wiring pattern corresponding by wire bonding. Further, single wire bonding may be employed in which one electrode is bonded to the wiring pattern as described above and the other electrode is connected to the wiring pattern by wire bonding.

  As shown in FIG. 6, in the first light emitting region 15 in the reflector 13, a first fluorescent member (first wavelength converting member) 21 is accommodated so as to cover the four first semiconductor light emitting elements 11, A second fluorescent member (second wavelength converting member) 22 is accommodated in the second light emitting region 16 in the reflector 13 so as to cover the four second semiconductor light emitting elements 12. The first fluorescent member 21 is excited by light emitted from the first semiconductor light emitting element 11 and emits white light having a first color temperature T1 (for example, 2300 K), and the first fluorescent member 23 is dispersed. It consists of the 1st filler 24 hold | maintained. The second fluorescent member 22 is excited by light emitted from the second semiconductor light emitting element 12, and emits white light having a second color temperature T2 (for example, 10000 K) higher than the first color temperature; It consists of a second filler 26 that holds the second phosphor 25 in a dispersed manner.

  Therefore, in the present embodiment, the four first semiconductor light emitting elements 11 and the first fluorescent member 21 covering them form the first light emitting source of the present invention, and the four second semiconductor light emitting elements 12 and these are connected. The covering second fluorescent member 22 forms the second light emitting source of the present invention. Therefore, the first light emission source and the second light emission source are combined in pairs to form the light emitting module 6. By configuring the light emitting module 6 in this manner, the pseudo window device 1 can be easily handled as the first and second light sources, and a plurality of first light sources and second light sources can be combined as in this embodiment. This is advantageous when used. In particular, as in this embodiment, the plurality of first semiconductor light emitting elements 11 are combined with the first fluorescent member 21, and the plurality of second semiconductor light emitting elements 12 are combined with the second fluorescent member 22 to form the light emitting module 6. By configuring, the first semiconductor light-emitting element 11 and the second semiconductor light-emitting element 12 are individually used, and the first and second light-emitting sources are configured separately, so that handling becomes much easier. The cost reduction effect is also increased.

  Moreover, since each light emitting module 6 is a combination of the first light emitting source and the second light emitting source as described above, a plurality of light emitting modules 6 are provided as in the pseudo window device 1 of this embodiment. If arranged and used, the first light source and the second light source are mixedly arranged. As will be described later, the white light emitted from the first light emission source and the white light emitted from the second light emission source are combined and emitted outward from the pseudo-window device 1. The white light emitted from each of the plurality of first light emission sources and the second light emission sources can be combined well.

(Semiconductor light emitting device)
The first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 used in this embodiment are both LED chips that emit near-ultraviolet light having a peak wavelength of 405 nm. Specifically, as such an LED chip, a GaN-based LED chip that uses an InGaN semiconductor for a light emitting layer and emits light in the near ultraviolet region is preferable. Note that the types and emission wavelength characteristics of the first semiconductor light-emitting element 11 and the second semiconductor light-emitting element 12 are not limited to these, and semiconductor light-emitting devices such as various LED chips can be used without changing the gist of the present invention. An element can be used. Specifically, an LED chip that emits blue light may be used as an LED chip other than the LED chip that emits near-ultraviolet light. Therefore, in this embodiment, the peak wavelength of light emitted from the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 is 380 nm to 500 nm in the case of an LED chip that emits near ultraviolet light, and in the case of an LED chip that emits blue light. It is preferable that it exists in the wavelength range of 430 nm-500 nm.

(Fluorescent material)
As described above, the first fluorescent member 21 includes the first phosphor that emits white light having the first color temperature T1 by converting the wavelength of all or part of the near-ultraviolet light emitted from the first semiconductor light emitting element 11. 23 is dispersed and held by the first filler 24. The second fluorescent member 22 emits white light having a second color temperature T2 higher than the first color temperature T1 by converting the wavelength of all or part of near-ultraviolet light emitted from the second semiconductor light emitting element 12. The second phosphor 25 to be dispersed is held by the second filler 26. In order to obtain such white light, in this embodiment, the first phosphor 23 and the second phosphor 25 each use three kinds of phosphors of a red phosphor, a green phosphor and a blue phosphor. These phosphors are mixed and dispersed in the first filler 24 and the second filler 26, respectively. The first phosphor 23 and the second phosphor 25 have different mixing ratios of these three types of phosphors, and the color temperatures of the obtained white light are respectively the first color temperature T1 and the second color temperature T2. Therefore, the mixing ratio is adjusted.

  By using the first phosphor 23 and the second phosphor 25 as described above, the near-ultraviolet light emitted from the first semiconductor light emitting element 11 is dispersedly held in the first phosphor member 21 as the first phosphor 23. The red light, the green phosphor, and the blue phosphor are wavelength-converted into red light, green light, and blue light, respectively, and white light having a first color temperature T1 obtained by synthesizing the red light, green light, and blue light is obtained. Radiated from the first fluorescent member 21. The near-ultraviolet light emitted from the second semiconductor light emitting element 12 is red, green, and green by the red phosphor, the green phosphor, and the blue phosphor that are dispersedly held in the second phosphor member 22 as the second phosphor 25, respectively. The light is converted into light and blue light, and white light having a second color temperature T2 obtained by combining the red light, green light, and blue light is emitted from the second fluorescent member 22.

  In addition, the 1st fluorescent substance 23 and the 2nd fluorescent substance 25 are not limited to what mixed the above-mentioned red fluorescent substance, green fluorescent substance, and blue fluorescent substance. For example, a blue phosphor and a yellow phosphor are both used for the first phosphor 23 and the second phosphor 25, and these phosphors are mixed together in the first filler 24 and the second filler 26, respectively. Each may be dispersed. In this case, the first phosphor 23 and the second phosphor 25 have different mixing ratios of these phosphors, and the color temperatures of the white light obtained are the first color temperature T1 and the second color temperature T2, respectively. Thus, the mixing ratio may be adjusted.

  Alternatively, each of the first phosphor 23 and the second phosphor 25 uses a blue-green (cyan) phosphor and a red phosphor, and these phosphors are mixed to each of the first filler 24 and the second phosphor. You may disperse | distribute in the filler 26, respectively. Also in this case, the first phosphor 23 and the second phosphor 25 have different mixing ratios of these phosphors, and the color temperatures of the obtained white light are respectively the first color temperature T1 and the second color temperature T2. Therefore, the mixing ratio may be adjusted. Therefore, specific examples of various phosphors that can be used for the first phosphor 23 or the second phosphor 25 are shown below.

(Red phosphor)
The emission peak wavelength of the red phosphor is usually 570 nm or more, preferably 580 nm or more, more preferably 585 nm or more, and usually 780 nm or less, preferably 700 nm or less, more preferably 680 nm or less. is there. Among them, as the red phosphor, for example, (Ca, Sr, Ba) ₂ Si ₅ (N, O) ₈ : Eu, (Ca, Sr, Ba) Si (N, O) ₂ : Eu, (Ca, Sr, Ba) ) AlSi (N, O) ₃ : Eu, (Sr, Ba) ₃ SiO ₅ : Eu, (Ca, Sr) S: Eu, (La, Y) ₂ O ₂ S: Eu, Eu (dibenzoylmethane) ₃ Β-diketone Eu complex such as 1,10-phenanthroline complex, carboxylic acid Eu complex, K ₂ SiF ₆ : Mn is preferred, (Ca, Sr, Ba) ₂ Si ₅ (N, O) ₈ : Eu, (Sr, Ca) AlSi (N, O) ₃ : Eu, (La, Y) ₂ O ₂ S: Eu, and K ₂ SiF ₆ : Mn are more preferable.

(Orange phosphor)
Among the red phosphors, those having an emission peak wavelength of 580 nm or more, preferably 590 nm or more and 620 nm or less, preferably 610 nm or less can be suitably used as the orange phosphor. Examples of such orange phosphors include (Sr, Ba) ₃ SiO ₅ : Eu, (Sr, Ba) ₂ SiO ₄ : Eu, (Ca, Sr, Ba) ₂ Si ₅ (N, O) ₈ : Eu, (Ca, Sr, Ba) AlSi (N, O) ₃ : Ce.

(Green phosphor)
The emission peak wavelength of the green phosphor is usually 500 nm or more, preferably 510 nm or more, more preferably 515 nm or more, and usually less than 550 nm, preferably 542 nm or less, more preferably 535 nm or less. is there. Among them, as the green phosphor, for example, Y ₃ (Al, Ga) ₅ O ₁₂ : Ce, CaSc ₂ O ₄ : Ce, Ca ₃ (Sc, Mg) ₂ Si ₃ O ₁₂ : Ce, (Sr, Ba) ₂ SiO ₄ : Eu, (Si, Al) ₆ (O, N) ₈ : Eu (β-sialon), (Ba, Sr) ₃ Si ₆ O ₁₂ : N ₂ : Eu, SrGa ₂ S ₄ : Eu, BaMgAl ₁₀ O ₁₇ : Eu and Mn are preferable.

(Blue phosphor)
The emission peak wavelength of the blue phosphor is usually 420 nm or more, preferably 430 nm or more, more preferably 440 nm or more, usually less than 500 nm, preferably 490 nm or less, more preferably 480 nm or less, still more preferably 470 nm or less, particularly preferably. Is preferably in the wavelength range of 460 nm or less. Among them, as a blue phosphor, for example, (Ca, Sr, Ba) MgAl ₁₀ O ₁₇ : Eu, (Sr, Ca, Ba, Mg) ₁₀ (PO ₄ ) ₆ (Cl, F) ₂ : Eu, (Ba, Ca , Mg, Sr) ₂ SiO ₄ : Eu, (Ba, Ca, Sr) ₃ MgSi ₂ O ₈ : Eu are preferred, (Ba, Sr) MgAl ₁₀ O ₁₇ : Eu, (Ca, Sr, Ba) ₁₀ (PO ₄ ) ₆ (Cl, F) ₂ : Eu, Ba ₃ MgSi ₂ O ₈ : Eu are more preferable, and Sr ₁₀ (PO ₄ ) ₆ Cl ₂ : Eu, BaMgAl ₁₀ O ₁₇ : Eu is particularly preferable.

(Yellow phosphor)
The emission peak wavelength of the yellow phosphor is usually 530 nm or more, preferably 540 nm or more, more preferably 550 nm or more, and usually 620 nm or less, preferably 600 nm or less, more preferably 580 nm or less. is there. Among them, as the yellow phosphor, for example, Y ₃ Al ₅ O ₁₂ : Ce, (Y, Gd) ₃ Al ₅ O ₁₂ : Ce, (Sr, Ca, Ba, Mg) ₂ SiO ₄ : Eu, (Ca, Sr) Si ₂ N ₂ O ₂ : Eu, α-sialon, and La ₃ Si ₆ N ₁₁ : Ce are preferable.

(Blue green phosphor)
Blue-green phosphors include halophosphate-based phosphors such as (Ba, Ca, Mg) ₁₀ (PO ₄ ) ₆ Cl ₂ : Eu ²⁺ (peak wavelength 483 nm), 2SrO · 0.84P ₂ O ₅ · 0. Phosphate phosphors such as 16B ₂ O ₃ : Eu ²⁺ (peak wavelength 480 nm), silicate phosphors such as Sr ₂ Si ₃ O ₈ · 2SrCl ₂ : Eu ²⁺ (peak wavelength 490 nm), BaAl ₈ O ₁₃ : Eu ²⁺ (peak wavelength 480 nm), BaMg ₂ Al ₁₆ O ₂₇ : Eu ²⁺ , Mn ²⁺ (peak wavelength 450 nm, 515 nm), SrMgAl ₁₀ O ₁₇ : Eu ²⁺ (peak wavelength 480 nm), Sr ₄ Al ₁₄ O ₂₅ : aluminate phosphors such as Eu ²⁺ (about peak wavelength _{480nm), BaSi 2 N 2 O} 2: Eu 2+ Peak wavelength of about 480 nm), and the like oxynitride-based fluorescent material such as. Instead of a single type of blue-green phosphor, a plurality of types of blue-green phosphors may be mixed and used, or a blue phosphor and a green phosphor may be mixed as appropriate so that the emitted light is blue-green. It may be made to become.

(Filler)
For the first filler 24 for dispersing and holding the first phosphor 23 and the second filler 26 for dispersing and holding the second phosphor 25, thermoplastic resin, thermosetting resin, photocurable resin or the like is used. It is preferable to use a material having sufficient transparency and durability against near-ultraviolet light emitted from the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12. Specifically, for example, (meth) acrylic resins such as methyl poly (meth) acrylate, styrene resins such as polystyrene and styrene-acrylonitrile copolymer, polycarbonate resins, polyester resins, phenoxy resins, butyral resins, polyvinyl alcohol, Examples thereof include cellulose resins such as ethyl cellulose, cellulose acetate, and cellulose acetate butyrate, epoxy resins, phenol resins, and silicone resins. Also, inorganic materials such as metal alkoxides, ceramic precursor polymers or solutions containing metal alkoxides by hydrolytic polymerization by a sol-gel method or a combination of these, solidified inorganic materials such as siloxane bonds. The inorganic material and glass which it has can be used.

(Color temperature of emitted light from light emitting module)
As described above, white light having the first color temperature T1 is emitted from the first fluorescent member 21 constituting the first light emission source, and the second color temperature T2 is emitted from the second fluorescent member 22 constituting the second light emission source. By emitting white light, the light emitting module 6 can obtain white light having a color temperature between the first color temperature T1 and the second color temperature T2 obtained by synthesizing the respective white lights.

  FIG. 7 is a graph showing a black body radiation locus BBL in the CIE (1931) XYZ color system chromaticity diagram, and FIG. 8 is an enlarged view of a main part of FIG. In FIG. 8, the relationship between the black body radiation locus BBL and the color matching temperature line is shown together with an equal deviation line representing the deviation duv from the black body radiation locus BBL. The deviation duv from the black body radiation locus BBL shown in FIG. 8 is converted from the deviation from the black body radiation locus in the CIE (1976) L * u * v * color system to the CIE (1931) XYZ color system. The conversion method is widely known. In the description of the present embodiment, the CIE (1931) XYZ color system that is conventionally easy to understand is used.

  For example, in this embodiment, the first color temperature T1 of white light emitted from the first fluorescent member 21 is 2300K, and the second color temperature T2 of white light emitted from the second fluorescent member 22 is 10,000K. In this case, in the chromaticity diagram of FIG. 8, the chromaticity point Pw1 of the white light emitted from the first fluorescent member 21 is on the color matching temperature line of 2300K, and the deviation duv from the blackbody radiation locus BBL is 0, that is, It is on the blackbody radiation locus. Further, the chromaticity point Pw2 of the white light emitted from the second fluorescent member 22 is on a color matching temperature line of 10000K, and the deviation duv from the black body radiation locus BBL is within +0.01.

  For example, as shown in FIG. 8, the deviation duv of the white light emitted from the first fluorescent member 21 from the black body radiation locus BBL is set to 0.00 to +0.01, and is emitted from the second fluorescent member 22. If the deviation duv of the white light from the black body radiation locus BBL is −0.01 to 0.00, the line connecting the chromaticity point Pw1 and the chromaticity point Pw2 is substantially along the black body radiation locus BBL. The deviation duv from the blackbody radiation locus BBL does not exceed 0.02. Also, at high color temperatures of 6500K or higher, duv has a magnitude between 0.00 and +0.01, while at low color temperatures of 3000K or lower, particularly in the region around 2300K, duv has a negative value and sunset. The color tone can be close.

  Therefore, the ratio of the white light emitted from the first fluorescent member 21 and the white light emitted from the second fluorescent member 22 is changed so that the chromaticity of the white light obtained by the synthesis changes along this line. By doing so, it is possible to obtain good-quality white light close to natural light, the color temperature of which can be adjusted in the range from the first color temperature T1 to the second color temperature T2. The deviation duv of the white light emitted from the first fluorescent member 21 and the white light emitted from the second fluorescent member 22 from the black body radiation locus BBL is not limited to the above-described values, and various Can be changed. However, it is preferable that the line connecting the chromaticity point Pw1 and the chromaticity point Pw2 is substantially along the black body radiation locus BBL in order to obtain good-quality white light close to natural light. Further, in addition to the first fluorescent member 21 and the second fluorescent member 22, by using the third fluorescent member corresponding to the chromaticity point PW3 which is an intermediate position between the chromaticity point Pw1 and the chromaticity point Pw2, by synthesis It is also possible to obtain high-quality white light close to natural light by suppressing the deviation duv of the obtained white light from the black body radiation locus BBL low.

(Electric circuit configuration of light emitting module and drive unit)
As described above, in this embodiment, the light emitting module is configured so that the chromaticity of the white light obtained by the synthesis changes along the line connecting the chromaticity point Pw1 and the chromaticity point Pw2 in the chromaticity diagram of FIG. 6 and the electric circuit configuration of the drive unit 30 for adjusting the drive current supplied to the light emitting module 6 will be described in detail with reference to FIG.

  As described above, in the light emitting module 6, an electric circuit is configured by mounting four first semiconductor light emitting elements 11 and four second semiconductor light emitting elements 12 on the substrate 10. In FIG. 9, the electric circuit configuration of the light emitting module 6 is shown corresponding to the actual arrangement of the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 on the substrate 10.

  As shown in FIG. 9, in the light emitting module 6, the first semiconductor light emitting element mounting portion 17 b of the wiring pattern 17 formed on the substrate 10 and the first semiconductor light emitting element mounting portion 18 b of the wiring pattern 18 formed on the substrate 10. , Each of the four first semiconductor light emitting elements 11 is connected in parallel with each other with the anode as the first semiconductor light emitting element mounting portion 17b side. Between the second semiconductor light emitting element mounting portion 17c of the wiring pattern 17 and the second semiconductor light emitting element mounting portion 18c of the wiring pattern 18, each of the four second semiconductor light emitting elements 12 has an anode connected to the second semiconductor light emitting element mounting portion 18c. The two semiconductor light emitting element mounting portions 18c are connected in parallel to each other. Further, one end of the wiring pattern 17 and one end of the wiring pattern 18 are provided with a connection land 17a and a connection land 18a for external connection, respectively.

  In the present embodiment, as shown in FIG. 9, a plurality of light emitting modules 6 are connected in parallel to one drive unit 30. The drive unit 30 has a full bridge type drive circuit constituted by four transistors Q1, Q2, Q3, and Q4. The collectors of the transistors Q1 and Q2 are connected to the positive electrode of the drive power supply 31, and the emitters of the transistors Q3 and Q4 are connected to the negative electrode of the drive power supply 31. On the other hand, the connection portion of the emitter of the transistor Q1 and the collector of the transistor Q3 on one output side of the drive circuit is connected to a connection land 17a provided on the substrate 10 of the light emitting module 6 via a current adjusting resistor Rs. Has been. Further, a connection portion between the emitter of the transistor Q2 and the collector of the transistor Q4 on the other output side of the drive circuit is connected to a connection land 18a provided on the substrate 10 of the light emitting module 6.

  The resistor Rs is provided to adjust the drive current flowing in each of the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 in each light emitting module 6 to an appropriate magnitude (for example, 60 mA per semiconductor light emitting element). It has been. The insertion position of the resistor Rs is not limited to this. For example, when the number of the light emitting modules 6 connected to one drive unit 30 is large and the current value adjusted by the resistor Rs is large. The individual light emitting modules 6 may be provided with current adjusting resistors.

  Each of the four transistors Q1 to Q4 can be switched between an on state and an off state in accordance with each base signal, and each base is connected to a drive control unit 32 for controlling such switching. Has been. The drive control unit 32 turns on the transistors Q1 and Q4 while both the transistors Q2 and Q3 are off, and turns on the transistors Q2 and Q3 while both the transistors Q1 and Q4 are off. Each base signal is output as follows.

  When both the transistors Q1 and Q4 are turned on, the positive electrode of the drive power supply 31 is connected to the connection land 17a of each light emitting module 6 via the transistor Q1 and the resistor Rs, and the negative electrode of the drive power supply 31 is connected to the transistor Q4. To the connection land 18a of each light emitting module 6. Therefore, in this case, only the first semiconductor light emitting element 11 emits near-ultraviolet light because a forward current flows only through the first semiconductor light emitting element 11 in each light emitting module 6. Near-ultraviolet light emitted from the first semiconductor light emitting element 11 is dispersed and held by the first fluorescent member 21 disposed in the first light emitting region 15 in the reflector 13 as in the first semiconductor light emitting element 11. The wavelength is converted by the body 23, and white light having the first color temperature T <b> 1 is emitted from the first fluorescent member 21.

  On the other hand, when the transistors Q2 and Q3 are both turned on, the positive electrode of the drive power supply 31 is connected to the connection land 18a of each light emitting module 6 via the transistor Q2, and the negative electrode of the drive power supply 31 is connected to the transistor Q3 and the resistor Rs. To the connection land 17 a of each light emitting module 6. Accordingly, in this case, only the second semiconductor light emitting element 12 emits near-ultraviolet light because a forward current flows only through the second semiconductor light emitting element 12 in each light emitting module 6. Near-ultraviolet light emitted from the second semiconductor light emitting element 12 is secondarily dispersed and held by the second fluorescent member 22 disposed in the second light emitting region 16 in the reflector 13 as in the second semiconductor light emitting element 12. The wavelength is converted by the body 25, and white light having the second color temperature T <b> 2 is emitted from the second fluorescent member 22.

  Thus, the drive unit 30 includes the first drive current supplied to the first semiconductor light emitting element 11 of each light emitting module 6 connected to the drive unit 30 and the second drive current supplied to the second semiconductor light emitting element 12. And can be controlled independently. Then, by alternately switching between the ON state of the transistors Q1 and Q4 and the ON state of the transistors Q2 and Q3, white light having the first color temperature from the first fluorescent member 21 and the second color from the second fluorescent member 22 are obtained. Combined light with white light of temperature is emitted from each light emitting module 6. In each light emitting module 6, the first semiconductor light emitting element 11 is supplied with a first drive current having a magnitude that allows the first semiconductor light emitting element 11 to emit light, and the second semiconductor light emitting element 12 is If the supply of the second drive current having a magnitude that allows the second semiconductor light emitting element 12 to emit light is stopped, white light having the first color temperature T1 is emitted from the light emitting module 6. On the other hand, the second semiconductor light emitting element 12 is supplied with a second drive current having a magnitude that allows the second semiconductor light emitting element 12 to emit light, and the first semiconductor light emitting element 11 is supplied to the first semiconductor light emitting element 11. If the supply of the first driving current having a magnitude capable of emitting light is stopped, white light having the second color temperature T2 is emitted from the light emitting module 6.

  FIG. 10 is a time chart showing an example of the operating state of each of the transistors Q1 to Q4 as described above and the driving current of each semiconductor light emitting element. In FIG. 10, the current flowing into the connection land 17 a of one light emitting module 6 is used, the current flowing through the four first semiconductor light emitting elements 11 and the four second semiconductor light emitting elements 12 in the light emitting module 6. Since the current is shown, the total current I1 flowing through the first semiconductor light emitting element 11 is shown as a positive value, and the total current I2 flowing through the second semiconductor light emitting element 12 is shown as a negative value as -I2. Has been.

  As shown in FIG. 10, when both of the transistors Q1 and Q4 are turned on, the total current I1 flows through the four first semiconductor light emitting elements 11 in each light emitting module 6, and each first semiconductor light emitting element 11 becomes near-ultraviolet. Emits light. On the other hand, when both the transistors Q2 and Q3 are turned on, the total current I2 flows through the four second semiconductor light emitting elements 12 in each light emitting module 6, and each second semiconductor light emitting element 12 emits near ultraviolet light. Such switching of the ON state is performed at a period t0 (for example, 20 ms) that does not concern about the flickering of the emitted light from the light emitting module 6 due to the switching of the light emission of each semiconductor light emitting element. The example shown in FIG. In this case, the on period t1 of the transistors Q1 and Q4 is set longer than the on period t2 of the transistors Q2 and Q3 (for example, t1 = 14 ms and t2 = 6 ms).

As described above, when the on states of the transistors Q1 and Q4 and the on states of the transistors Q2 and Q3 are alternately switched, the first driving current Id1 and the second semiconductor light emitting device per one first semiconductor light emitting device 11 are used. The second drive current Id2 per 12 is represented by the following formulas (1) and (2).
Id1 = (t1 / t0) · (I1 / 4) (1)
Id2 = (t2 / t0) · (I2 / 4) (2)

  Therefore, the ratio Id1 / Id2 between the first drive current Id1 and the second drive current Id2 changes according to the change in the ratio t1 / t2 between the on period t1 of the transistors Q1 and Q4 and the on period t2 of the transistors Q2 and Q3. On the other hand, the sum of the first drive current Id1 and the second drive current Id2 in one cycle t0 is constant. That is, by changing the ratio t1 / t2 of the on periods t1 and t2, the chromaticity point of white light obtained by synthesis from each light emitting module 6 is the first fluorescent member 21 in the chromaticity diagram of FIG. On the line connecting the chromaticity point Pw1 of the white light emitted from the first color temperature T1 and the chromaticity point Pw2 of the white light emitted from the second fluorescent member 22, the two It moves between chromaticity points Pw1 and Pw2. Accordingly, the color temperature of the white light obtained by the synthesis from each light emitting module 6 can be changed between the first color temperature T1 and the second color temperature T2 with a simple drive circuit configuration in the drive unit 30. .

  At this time, the first color temperature T1 is 2300K and the second color temperature T2 is 10000K. As described above, the white light emitted from the first fluorescent member 21 and the white light emitted from the second fluorescent member 22 are black. If the deviation duv from the body radiation locus BBL is, for example, +0.01, for example, a line connecting the chromaticity point Pw1 and the chromaticity point Pw2 substantially follows the blackbody radiation locus BBL, as shown in FIG. It will be a thing. Therefore, the white light of good quality close to natural light can be obtained from the light emitting module 6, the color temperature of which can be adjusted in the range from 2300 K as the first color temperature T 1 to 10000 K as the second color temperature T 2.

  FIG. 11 is a time chart showing another example of the operating states of the transistors Q1 to Q4 and the driving currents of the semiconductor light emitting elements as described above, similar to FIG. In the example of FIG. 11, the on period t1 of the transistors Q1 and Q4 is shorter than the example of FIG. 10, and the on period t2 of the transistors Q2 and Q3 is correspondingly longer. Accordingly, the ratio t1 / t2 between the on period t1 and the on period t2 is larger in the example of FIG. 10 than in the example of FIG. 11, and the color of white light obtained by synthesis from each light emitting module 6 in the example of FIG. The temperature is lower than the color temperature of white light obtained by synthesis from the light emitting modules 6 in the example of FIG.

  In the examples of FIGS. 10 and 11, the current is always continuously supplied to one of the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 in the period t0. However, it is also possible to provide a period during which no current flows in either the first semiconductor light emitting element 11 or the second semiconductor light emitting element 12 in the period t0. That is, for example, in the period t0, it is also possible to intermittently flow current to the first semiconductor light emitting element 11 in the period t1, and intermittently flow current to the second semiconductor light emitting element 12 in the period t2. In this case, since the current flows intermittently in this way, the transistor Q4 is not maintained in the on state while the transistor Q1 is in the on state, but the on / off operation is performed in a predetermined cycle (for example, 2.5 ms). Again, the transistor Q3 similarly sends a base signal to the transistors Q1 to Q4 so that the ON / OFF operation is repeated at a predetermined cycle while the transistor Q2 is in the ON state.

  FIG. 12 shows an example of the operating states of the transistors Q1 to Q4 and the drive current of each semiconductor light emitting element when the transistors Q3 and Q4 are turned on / off in this manner, and FIG. It is a time chart shown similarly. In the example of FIG. 12, the on / off period t0 of the transistors Q1 and Q2 is 20 ms as in the examples of FIGS. 10 and 11, and the on period t1 of the transistor Q1 and the on period t2 of the transistor Q2 are as shown in FIG. It is the same as the example (for example, t1 = 14 ms and t2 = 6 ms). The on period of the transistor Q4 while the transistor Q1 is on, that is, the pulse width of the current I1, and the on period of the transistor Q3 while the transistor Q2 is on, ie, the pulse width of the current I2, are the same. The pulse width t3 is increased or decreased by t3.

Assuming that the number of pulses of the current I1 in the period t1 is n1 and the number of pulses of the current I2 in the period t2 is n2, the first semiconductor light-emitting element 11 has the The one drive current Id1 and the second drive current Id2 of the second semiconductor light emitting element 12 are expressed by the following formulas (3) and (4).
Id1 = (n1 · t3 / t0) · (I1 / 4) (3)
Id2 = (n2 · t3 / t0) · (I2 / 4) (4)

  Therefore, by changing the pulse width t3, the magnitudes of the first drive current Id1 and the second drive current Id2 can be increased or decreased in the same direction at the same rate. If the pulse width t3 is maximized, a current always flows through the first semiconductor light emitting element 11 during the period t1 and the second semiconductor light emitting element 12 always during the period t2, as in the example of FIGS. 10 and 11 described above. Current will flow through.

  As is clear from the above equations (3) and (4), if the pulse number n1 of the current I1 in the period t1 and the pulse number n2 of the current I2 in the period t2 are constant, the pulse width t3 can be changed even if the pulse width t3 is changed. The ratio Id1 / Id2 between the first drive current Id1 and the second drive current Id2 is constant. On the other hand, if the period t0 is constant and the on-period t1 of the transistor Q1 and the on-period t2 of the transistor Q2 are changed, one of the pulse numbers n1 and n2 increases and the other decreases, so the first drive current Id1 and the second drive current The ratio Id1 / Id2 with the current Id2 changes. Accordingly, the color temperature of the white light obtained by the synthesis from the light emitting module 6 is changed as described above by changing the ON period t1 of the transistor Q1 and the ON period t2 of the transistor Q2, as in the examples of FIGS. In addition, by changing the pulse width t3, it is possible to change the luminance of the white light obtained by the synthesis from the light emitting module 6.

  Instead of intermittently turning on / off the transistors Q3 and Q4 as in the example of FIG. 12 described above, the transistor Q4 is continuously turned on in a part of the period t1, and the remaining part of the period t1 is set. The transistor Q3 may be continuously turned off in the period, the transistor Q3 may be continuously turned on in a part of the period t2, and may be continuously turned off in the remaining period of the period t2. In this case, the transistor Q1 may be turned on / off similarly to the transistor Q4, and the transistor Q2 may be turned on / off similarly to the transistor Q3.

  In the examples of FIGS. 10 to 12, the four transistors Q <b> 1 to Q <b> 4 are each turned on / off by the base signal of the drive control unit 32. Instead of this, the base from the drive control unit 32 is used. The current flowing through these transistors Q1 to Q4 may also be controlled by a signal. In this case, the resistor Rs for current adjustment is not necessary. Further, a constant current circuit may be inserted in place of the resistor Rs, and the four transistors Q1 to Q4 may be turned on / off by the base signal of the drive control unit 32, respectively.

(Light emission control in simulated window device)
Next, the light emission control executed in the simulated window device 1 including the light emitting module 6 and the drive unit 30 configured as described above will be described in detail. This light emission control is executed in order to appropriately control the color temperature and luminance of white light emitted from the light emission window 2e of the pseudo window device 1. FIG. 13 is a control block diagram of the pseudo window device 1 corresponding to the light emission control, and FIG. 14 is a flowchart of the light emission control.

  In the present embodiment, as described above, the light emission window 2e formed by the window frame member 2 in the pseudo window device 1 includes the window area A, the window area B, the window area C, and the window area in the vertical direction as shown in FIG. D is divided into four areas. One drive unit 30 is provided corresponding to each of these window areas A to D, and the light emitting module 6 also corresponds to each of the window areas A to D, and the main supply destination of each radiated light. It is divided for each window area. Then, the light emitting modules 6 thus divided corresponding to the respective window areas A to D are connected to the drive units 30 corresponding to the same window area as described above. Therefore, in the following, the reference numerals of the corresponding window areas A to D are added to the end of the reference numerals of the drive unit 30 and the light emitting module 6 to indicate the correspondence with the window areas A to D.

  That is, as shown in FIG. 13, a drive unit 30A is provided corresponding to the window area A, and a plurality of light emitting modules 6A that mainly supply radiated light to the window area A are connected to the drive unit 30A. In addition, a drive unit 30B is provided corresponding to the window region B, and a plurality of light emitting modules 6B that mainly supply radiated light to the window region B are connected to the drive unit 30B. Similarly, the drive unit 30C and the plurality of light emitting modules 6C correspond to the window region C, and the drive unit 30D and the plurality of light emitting modules 6D correspond to the window region D.

  The pseudo window device 1 is provided with an integrated control unit 40 for controlling the drive currents of the light emitting modules 6A to 6D by controlling the drive units 30A to 30D in an integrated manner. The light emission control of the pseudo window device 1 is executed by 40. Accordingly, the drive units 30A to 30D and the integrated control unit 40 correspond to the drive control means of the present invention. The light emitting modules 6A to 6D are respectively mounted on the holding substrate 7 fixed in the pseudo window device 1 as described above. However, the integrated control unit 40 and the drive units 30A to 30D are also included in the holding substrate 7. It is attached to the light emitting module mounting surface or its back surface.

  When a main switch (not shown) provided in the pseudo-window device 1 is switched from the off state to the on state, the integrated control unit 40 follows a flowchart shown in FIG. 14 until a predetermined time is reached until the main switch is switched to the off state. The light emission control is executed in the control cycle. When the integrated control unit 40 starts the light emission control, first, in step S1, the integrated control unit 40 acquires the time (hereinafter referred to as the current time) at that time by the time acquisition timer 40a incorporated therein. In order to enable acquisition of the current time, the integrated control unit 40 continues to count the timer 40a even when the main switch is in the off state.

  Next, when the integrated control unit 40 advances the process to step S2, the current time acquired in step S1 is a first time zone (hereinafter simply referred to as daytime) set in advance corresponding to daytime except morning and evening (hereinafter simply referred to as daytime). For example, it is determined whether it is 9:00 to 14:59). And if it determines with step S2 that the present time is in the 1st time slot | zone, the integrated control part 40 will advance a process to step S3, and drive unit 30A-30D so that light emission from light emitting module 6A-6D may be performed in mode 1. And the control cycle ends.

  On the other hand, if it is determined in step S2 that the current time is not the time of the first time zone, the integrated control unit 40 advances the process to step S4, and the second time zone (for example, the current time is preset corresponding to the morning) (for example, 6: 00 to 8: 59). If it is determined in step S4 that the current time is in the second time zone, the integrated control unit 40 advances the processing to step S5 and drives the light emitting modules 6A to 6D in mode 2 to emit light from the driving units 30A to 30D. And the control cycle ends.

  If the process proceeds from step S2 to step S4 and it is determined that the current time is not the time of the second time zone, the integrated control unit 40 proceeds to step S6, and the current time is set in advance corresponding to the evening. It is determined whether or not it is in the third time zone (for example, 15:00 to 18:00). If it is determined in step S6 that the current time is in the third time zone, the integrated control unit 40 advances the process to step S7 to drive the light emitting modules 6A to 6D in mode 3 so as to emit light from the light emitting modules 6A to 6D. And the control cycle ends.

  When the process proceeds from step S2 to step S4 to step S6 and the integrated control unit 40 determines in step S6 that the current time is not the time of the third time zone, the current time is any of morning, daytime, and evening. It's not time. That is, the integrated control unit 40 determines that the current time is the night time, and the integrated control unit 40 proceeds from step S6 to step S8, and emits light from the light emitting modules 6A to 6D in mode 4. The drive units 30A to 30D are controlled to perform, and the control cycle ends.

  Thus, when the process of each step is performed and the control cycle is completed, the integrated control unit 40 starts the process again from step S1 in the next control cycle. Therefore, the integrated control unit 40 acquires the current time in step S1 for each control period while executing the light emission control, and then determines the mode 1 according to which time zone the current time is in as described above. The drive units 30A to 30D are controlled so as to emit light from the light emitting modules 6A to 6D at any one of.

  Next, light emission of the light emitting modules 6A to 6D in modes 1 to 4 performed in steps S3, S5, S7, and S8, respectively, will be specifically described. In each mode, the color temperature and luminance of white light emitted from the light emission window 2e of the pseudo window device 1 are determined in advance corresponding to each of the window areas A to D. FIG. 15 is a table showing an example of the color temperature and brightness of white light in each mode, which is determined for each window region.

Note that the luminance in FIG. 15 is expressed using the duty ratio Dt when the transistors Q3 and Q4 in each of the drive units 30A to 30D are intermittently turned on / off with the pulse width t3 as in the example of FIG. ing. That is, when the number of pulses included in the on period t1 of the transistor Q1 in the period t0 is n1, and the number of pulses included in the on period t2 of the transistor Q2 is n2, it is clear from the above-described equations (3) and (4). As described above, the duty ratio Dt is expressed by the following equation (5).
Dt = (n1 · t3 / t1) · 100
= (N2 / t3 / t2) .100 (5)

  As is apparent from the equation (5), when the pulse width t3 is zero, that is, when the light emitting module 6 does not emit light, the luminance becomes the minimum 0%. On the other hand, the pulse width t3 is expanded to the maximum, and the on period of the transistor Q4 in the drive unit 30 is set to t1 similarly to the on period of the transistor Q1 as in the examples of FIGS. When t2 is the same as the ON period of the transistor Q2, the luminance is 100% at the maximum. Therefore, the luminance of white light emitted from each window region can be adjusted to 0 to 100% by changing the pulse width t3.

  Further, as described above, the color temperature of the white light emitted from each window region is changed by changing the ratio t1 / t2 of the on period t1 of the transistor Q1 and the on period t2 of the transistor Q2 to change the first color temperature T1. To a second color temperature T2. In this embodiment, since the first color temperature T1 is 2300K and the second color temperature T2 is 10000K, the color temperature of white light emitted from each window region can be adjusted between 2300K and 10000K. Therefore, the integrated control unit 40 uses the relationship between the color temperature of the white light obtained by the synthesis and the ratio t1 / t2 of the on period t1 of the transistor Q1 and the on period t2 of the transistor Q2 as a color temperature control map, the memory 40b, etc. Is stored in advance in the storage device.

  As shown in FIG. 15, in mode 1, the color temperature of the white light emitted from the window area A is set to 10000K and the luminance is set to 100%. Similarly, the color temperatures are set to 9000K for the window areas B to D, respectively. , 8000K and 7000K, and the duty ratio Dt corresponding to the luminance is set to 100%. When the integrated control unit 40 selects mode 1 in the light emission control, based on the color temperature set as described above, the integrated control unit 40 calculates the corresponding ratio t1 / t2 from the color temperature control map stored in the memory 40b in advance for each window region. read out.

  In the case of mode 1, since the color temperatures determined for the window areas A to D are different as described above, the ratio t1 / t2 read from the color temperature control map is also different for each of the window areas A to D. That is, the four ratios t1 / t2 applied to each of the window areas A to D are the smallest in the window area A and the largest in the window area D, as is apparent from the above color temperature.

  The integrated control unit 40 applies the ratio t1 / t2 read based on the color temperature and the duty ratio Dt corresponding to the luminance to the drive units 30A to 30D corresponding to each window region, and the light emitting modules connected to each of them. White light is emitted from 6A to 6D. As a result, white light corresponding to the color temperature and brightness determined in mode 1 is emitted from each of the window regions A to D. Accordingly, the white light emitted from the window region A has the highest color temperature (10000 K) in the present embodiment, and the color temperature of the white light gradually decreases as it becomes lower in the actual use state of the pseudo window device 1. It is supposed to be. Moreover, since the brightness | luminance of the white light radiated | emitted from each window area | region AD is the maximum 100%, the whole region of the light emission window 2e of the pseudo window apparatus 1 will be in the brightest state.

  In the present embodiment, the light emission window 2e of the pseudo window device 1 is divided into four window areas A to D in the vertical direction. For example, if the window area A is the first window area of the present invention, the window Regions B to D are the second window region of the present invention. In this case, the ratio of the first driving current Id1 and the second driving current Id2 supplied to the light emitting module 6A provided corresponding to the window area A, that is, the ratio t1 / t2 applied corresponding to the window area A is determined. The first ratio of the present invention, the ratio of the first drive current Id1 and the second drive current Id2 supplied to the light emitting modules 6B to 6D respectively provided corresponding to the window areas B to D, that is, the window area B Each ratio t1 / t2 applied corresponding to ~ D is the second ratio of the present invention.

  For example, if the window areas A and B are the first window areas of the present invention, the window areas C and D are the second window areas of the present invention. In this case, the ratio of the first drive current Id1 and the second drive current Id2 supplied to the light emitting modules 6A and 6B provided corresponding to the window areas A and B, that is, the window areas A and B, respectively. The ratios t1 / t2 applied in this way are the first ratios of the present invention, and the first drive currents Id1 and the first drive currents Id1 and 6D supplied to the light emitting modules 6C and 6D provided corresponding to the window regions C and D, respectively. The ratio of the two drive currents Id2, that is, the ratio t1 / t2 applied corresponding to the window regions C and D is the second ratio of the present invention.

  Further, for example, if the window areas A to C are the first window area of the present invention, the window area D becomes the second window area of the present invention. In this case, it corresponds to the ratio of the first drive current Id1 and the second drive current Id2 supplied to the light emitting modules 6A to 6C respectively provided corresponding to the window areas A to C, that is, the window areas A to C. The ratios t1 / t2 applied in this way become the first ratio of the present invention, and the ratio of the first drive current Id1 and the second drive current Id2 supplied to the light emitting module 6D provided corresponding to the window region D, That is, the ratio t1 / t2 applied corresponding to the window region D is the second ratio of the present invention.

  In the present embodiment, each of the window regions A to D is not provided with a mechanism for optically separating each other, and is merely divided as a region. Since the translucent and milky white diffusing plate 3 is attached to the light emission window 2e of the pseudo window device 1, white light emitted from the adjacent window regions is partially at each boundary portion of the window regions A to D. Will be synthesized. Therefore, in the present embodiment, the color temperature boundary for each window region does not appear clearly in the white light emitted from the light emission window 2e of the pseudo window device 1, and the color temperature gradually changes in the vertical direction. White light is emitted from the light emission window 2 e through the diffusion plate 3. That is, in mode 1, white light having the highest color temperature of 10,000 K is emitted from the region located at the uppermost position of the light emission window 2e, and white light having a color temperature gradually lowered toward the lower side. Then, white light having a color temperature of 7000 K is radiated from a region located at the lowest position of the light emission window 2 e.

  Mode 1 is selected in the daytime in the light emission control, but in the case of an actual window, in such a time zone, bright light having a high color temperature is generally incident from the top to the bottom. As described above, in the mode 1, the color temperature gradually decreases from the upper side to the lower side in the range of 7000K to 10000K, and the brightest white light is transmitted from the light emission window 2e of the pseudo window device 1 to the diffusion plate 3. Radiated through. Moreover, as described above, the white light emitted from each of the light emitting modules 6A to 6D is of a high quality that is very close to natural light. Accordingly, in the daytime time zone in which mode 1 is selected, white light in a state very close to light incident from the actual window during this time zone passes through the diffusion plate 3 from the light emission window 2e of the pseudo window device 1. Will be emitted.

  Next, in mode 2, as shown in FIG. 15, the color temperature of the white light emitted from the window area A is set to 7000K and the luminance is set to 80%. Similarly, the color temperature is set to the window areas B to D in the following manner. The duty ratios Dt corresponding to the luminance are respectively set to 75%, 65%, and 65%. When the integrated control unit 40 selects mode 2 in the light emission control, based on the color temperature and luminance set in this way, the integrated control unit 40 displays a corresponding ratio t1 / t2 from the color temperature control map stored in advance in the memory 40b. Read for each area.

  Also in mode 2, since the color temperatures determined for the window areas A to D are different as described above, the ratio t1 / t2 read from the color temperature control map is different for each of the window areas A to D. That is, the four ratios t1 / t2 applied to each of the window areas A to D are the smallest in the window area A and the largest in the window area D, as is apparent from the above color temperature.

  The integrated control unit 40 applies the ratio t1 / t2 read based on the color temperature and the duty ratio Dt corresponding to the luminance to the drive units 30A to 30D corresponding to each window region, and the light emitting modules connected to each of them. White light is emitted from 6A to 6D. As a result, white light corresponding to the color temperature and luminance determined in mode 2 is emitted from each of the window regions A to D. That is, although the color temperature is lower than that in the mode 1 as a whole, the color temperature gradually decreases as the color temperature becomes lower in the actual use state of the pseudo window device 1 as in the mode 1. The degree of such a decrease in color temperature in the light emission window 2e is larger than that in the mode 1. Further, the brightness of the white light emitted from the light emission window 2e is also lowered as a whole as compared with the mode 1, and gradually decreases as it becomes lower in the actual use state of the pseudo window device 1. It has become.

  Note that, as described with respect to the mode 1, the boundary of the color temperature for each window region does not clearly appear in the white light emitted from the light emission window 2e of the pseudo-window device 1 through the diffusion plate 3, and the white light The color temperature gradually changes in the vertical direction. For the same reason, the luminance gradually changes in the vertical direction when the luminance differs between the window regions A to D. Therefore, in mode 2, white light whose color temperature gradually decreases from the upper side to the lower side in the range of 3000K to 7000K and whose luminance decreases from the upper side to the lower side in the range of 65% to 80%. The light is emitted from the light emission window 2e through the diffusion plate 3.

  Mode 2 is selected in the morning in the light emission control, but in the case of an actual window, in such a time zone, the color temperature is generally lower and the brightness is somewhat lower than in the daytime when Mode 1 is selected. In general, the incident light enters from the top to the bottom, and the difference in color temperature between the top and bottom of the window increases. As described above, the color temperature of the white light emitted from the light emission window 2e of the pseudo-window device 1 through the diffusion plate 3 in mode 2 gradually decreases from 3000K to 7000K from the top to the bottom. At the same time, the luminance gradually decreases in the range of 65% to 80%. Furthermore, also in this case, the white light radiated from each of the light emitting modules 6A to 6D has a high quality that is very close to natural light. Accordingly, even in the morning time zone in which mode 2 is selected, white light that is very close to the light incident from the actual window during this time zone is emitted from the light emission window 2e of the pseudo-window device 1. .

  Mode 3 is selected in the evening in the light emission control, but in the case of an actual window, in such a time zone, it can be considered that light similar to the morning in which mode 2 is selected is incident, but compared with the morning The light is somewhat reduced in color temperature. Accordingly, in the mode 3, the white light whose color temperature and luminance are gradually changed in the vertical direction by the translucent milky white diffusion plate 3 and whose color temperature is somewhat lower than that in the mode 2 is emitted from the light emission window 2e. From the diffusion plate 3. That is, in mode 3, from the top to the bottom, white light whose color temperature gradually decreases in the range of 2300K to 5000K and whose luminance gradually decreases in the range of 50% to 80% is emitted from the pseudo-window device 1. Radiated from the window 2e through the diffusion plate 3. Furthermore, also in this case, the white light radiated from each of the light emitting modules 6A to 6D has a high quality that is very close to natural light. Therefore, even in the evening time zone in which mode 3 is selected, white light in a state very close to the light incident from the actual window during this time zone passes through the diffusion plate 3 from the light emission window 2e of the pseudo window device 1. Will be emitted.

  Next, in mode 4, as shown in FIG. 15, the color temperature of the white light radiated from each of the window areas A to D is set to 2300K, and the brightness is in the range of 10% to 40%. It is stipulated to gradually decrease from the bottom to the bottom. Mode 4 is selected at night in light emission control, but in the case of night, sunlight does not enter the actual window. However, even at night, it is common for light from the moon, street lights, etc. to enter through the actual window. In consideration of such a situation, in this embodiment, a certain amount of white light is emitted from the light emission window 2e of the pseudo window device 1 even at night, and the above color temperature and luminance are set. Yes. When the mode 4 is selected in the light emission control, the integrated control unit 40 reads the corresponding ratio t1 / t2 from the color temperature control map stored in advance in the memory 40b based on the color temperature and luminance set in this way.

  In the case of mode 4, since the color temperature determined in each of the window areas A to D is the same as described above, the ratio t1 / t2 read from the color temperature control map is the same in each of the window areas A to D. Become. The integrated control unit 40 applies the ratio t1 / t2 read based on the color temperature and the duty ratio Dt corresponding to the luminance to the drive units 30A to 30D, and emits white light from the light emitting modules 6A to 6D connected thereto. Let it radiate. Therefore, even in the night time zone in which mode 4 is selected, white light in a state very close to the light incident from the actual window during this time zone passes through the diffusion plate 3 from the light emission window 2e of the pseudo window device 1. Will be emitted.

  As described above, when the integrated control unit 40 executes the light emission control, the light emission window 2e of the pseudo window device 1 is very close to the light incident from the actual window in any time zone of the day. Of white light is emitted. Moreover, the white light emitted from the light emission window 2e at this time is very close to natural light as described above.

  Furthermore, in the present embodiment, as described above, the curtain 4 made of a lace-like cloth is disposed outside the diffusion plate 3 attached to the light emission window 2e of the pseudo window device 1 in a state of being separated from the diffusion plate 3. It covers almost the entire area of the light emission window 2e on which the diffusion plate 3 is mounted. Therefore, when white light is emitted from the light emission window 2e through the diffusion plate 3 as described above, a part of the emitted white light is shielded by the curtain 4, and the remainder is the curtain 4 and the diffusion plate 3 or It radiates outward through the gap with the window frame member 2 and the curtain 4 itself.

  When such a curtain 4 is not provided in the pseudo window device 1, the entire area of the light emission window 2e is directly exposed to the outside. For this reason, even if the white light in a state very close to the light incident from the actual window as described above is emitted from the light emission window 2e of the pseudo-window device 1 through the diffusion plate 3, the light emission window 2e is used. Because the scenery outside is not visible, there is a strong sense of incongruity compared to the actual window. In the present embodiment, the above-described curtain 4 is provided in the pseudo-window device 1 to prevent the entire area of the light emission window 2e from being seen directly, and the emitted white light is partially reflected in the curtain. 4 and the diffusion plate 3 or the window frame member 2 and the curtain 4 itself are radiated outward. Therefore, it becomes possible to eliminate the above-mentioned uncomfortable feeling, and combined with the fact that white light in a state very close to the light entering from the actual window can be obtained, the feeling as if there is an actual window is improved. Obtainable.

  In the light emission control performed in the present embodiment, the light emission window 2e of the pseudo window device 1 is divided into four window areas A to D, but the number of divided window areas is not limited to this, It can be increased or decreased as necessary. That is, it may be divided into three or two window areas, or the window areas may be further subdivided. When the window region is most divided, one row of the light emitting modules 6 arranged in the horizontal direction corresponds to one window region.

  Further, as shown in FIG. 15, the color temperature and the luminance in each of the light emission control modes 1 to 4 set for each of the window regions A to D are examples, and are not limited to these values. Absent. That is, it is possible to appropriately change the settings of the color temperature and the luminance according to the region where the pseudo window device 1 is used, the seasonal time, and the like. Therefore, for example, the color temperature and the luminance are determined for each of the modes 1 to 4 for each region where the use of the pseudo-window device 1 is assumed or for each seasonal period, and stored in the memory 40b of the integrated control unit 40 in advance. You may do it. In this case, the combination of the color temperature and the brightness may be manually read out from the memory 40b and used according to the region and time of actual use, or the actual region or time may be automatically determined. Accordingly, the combination of the corresponding color temperature and luminance may be read from the memory 40b and used.

  The contents of the light emission control performed by the integrated control unit 40 described so far are not limited to this, and various changes can be made. For example, when selecting modes 1 to 4, the settings of the first to third time zones used to determine which time zone the current time is in are examples. The time zone corresponding to the morning, evening, and daytime varies depending on the region, seasonal time, weather, etc., and the pseudo color temperature and luminance setting in each of the modes 1 to 4 described above are simulated. It can be changed as appropriate according to the area where the window apparatus 1 is used, the seasonal time, or the weather. Therefore, for example, the time range of the first to third time zones is determined for each region, seasonal time, or weather in which the pseudo window device 1 is assumed to be used, and stored in the memory 40b of the integrated control unit 40 in advance. You may make it leave. In this case, the first to third time zones may be manually read out from the memory 40b and used according to the actual area, time, or weather at that time. By determining the time or the weather at that time, the corresponding first to third time zone settings may be read from the memory 40b and used.

  Further, in this embodiment, one day is divided into four time zones of morning, evening, daytime, and night, and modes 1 to 4 are defined corresponding to each time zone. It may be divided into time zones, or may be divided into a larger number of time zones. In either case, the mode is set corresponding to each divided time zone, and the color temperature and brightness are set so that appropriate white light is emitted from the light emission window 2e of the pseudo-window device 1 for each mode. do it.

  Furthermore, in this embodiment, white light with reduced luminance is emitted from the light emission window 2e of the pseudo window device 1 even at night. However, emission of white light may be stopped at night. . Furthermore, in this embodiment, the mode 2 selected in the morning and the mode 3 selected in the evening differ in the color temperature and luminance distribution of the white light emitted from the light emission window 2e of the pseudo-window device 1. However, at least one of color temperature and luminance may be the same between both modes.

  Further, in this embodiment, the transition to the next mode is made in a stepwise manner corresponding to the switching of the time zone, but at the transition of the mode, from the color temperature and the brightness corresponding to the mode before the transition, The color temperature and brightness corresponding to the mode may be gradually shifted. In this case, for example, the processing for mode transition is started at a time before a predetermined time (for example, one hour) from the time of mode transition. Then, the color temperature and brightness corresponding to the mode before and after the transition are respectively weighted and added to determine the color temperature and brightness during the mode transition, and the color temperature and brightness corresponding to the mode before the transition are determined over time. The weighting of the color temperature and the luminance corresponding to the mode after the transition may be increased.

  Alternatively, instead of such mode switching, color temperature and luminance changes in the window areas A to D may be stored in advance in the memory 40b of the integrated control unit 40 over one day. In this case, the integrated control unit 40 may use the color temperature and luminance read from the memory 40b corresponding to the current time for the above-described light emission control. By doing in this way, the change of the color temperature and brightness | luminance in window area | region AD becomes smooth, and it can approach the change of the light which injects into an actual window more.

  FIG. 16 is a graph showing an example of the relationship between the color temperature and the luminance and the time of the day when the color temperature and the luminance are determined for each of the window regions A to D in this way. Also in the relationship between the time shown in FIG. 16, the color temperature, and the luminance, as in FIG. 15, the upper side of the light emission window 2a generally except the night time zone in which the color temperature is the same in each window region. The color temperature and the luminance decrease as the distance from the area decreases toward the lower area, and in the morning and evening, the difference in color temperature between the upper area and the lower area of the light emission window 2a increases from the daytime. It has become. Furthermore, the color temperature and the luminance gradually increase with the progress of time from the morning, and after a while after noon, the color temperature and the luminance gradually decrease with the passage of time. Therefore, even if the light emission control is performed using the color temperature and luminance having the relationship shown in FIG. 16, it is possible to obtain a feeling close to an actual window.

  In the example shown in FIG. 16, the amount of data that must be stored in the memory 40b is reduced by making the change in color temperature and luminance with the passage of time both linear. However, if the color temperature and the brightness are changed in a curve according to the passage of time, including the part that is kept constant, the continuity in the change of the color temperature and the brightness corresponding to the passage of time increases. Furthermore, it is possible to approach the change of the light incident on the actual window.

  Further, apart from the change in color temperature and brightness with the passage of time as described above, at least one of color temperature and brightness may be changed in a short cycle of, for example, 0.5 second to 2 seconds. By doing so, it is possible to reproduce a state in which, for example, a plant or the like outside the actual window is shaken by the wind, and accordingly, the light incident on the actual window is fluctuated. Such a change in color temperature or luminance may be a constant cycle, but is preferably performed intermittently and irregularly. Further, the fluctuation range may be uniform, but an irregular fluctuation range is preferable. Such a change in color temperature or luminance in a short cycle may be performed in a part of the window regions A to D or may be performed in all the window regions. Further, it may be performed for the entire window area, or may be performed for a part of the window area. However, when the color temperature or the luminance is varied in a part of one window area, it is necessary to provide a plurality of drive units 30 provided for the window area.

  Further, instead of the change in the color temperature and the luminance with the progress of the time described so far, the area where the artificial window device 1 is used, the season, the weather when used, the preference of the user, the type of room used, etc. Based on various factors, the color temperature and luminance of white light emitted from the pseudo window device 1 may be changed.

  Furthermore, in the present embodiment, the light emission window 2e of the pseudo window device 1 is divided into a plurality of window regions in the vertical direction so that the color temperature and the luminance are different in the vertical direction. In addition, the light emission window 2e may be divided into a plurality of window regions in the left-right direction, and the color temperature and brightness may be made different in the left-right direction in the same manner as the light emission control described above.

(Modification)
In this embodiment, the curtain 4 made of a lace-like cloth is provided as the light shielding member of the present invention. What is necessary is just to block a part of the white light to be transmitted and allow the remaining part to pass. FIG. 17 is a perspective view showing a pseudo window device 1 ′ according to a modification of the first embodiment as one of such examples.

  In the pseudo window device 1 'of the present modification, a blind 4' generally used for an actual window is used as the light shielding member of the present invention instead of the curtain 4 of the pseudo window device 1 of the first embodiment described above. ing. Although the pseudo window device 1 ′ is different from the pseudo window device 1 of the first embodiment in that the blind 4 ′ is used in this way, the configuration of other parts is the same as that of the pseudo window device 1 of the first embodiment. Is exactly the same. Accordingly, the same reference numerals as those of the pseudo window device 1 of the first embodiment are used for portions other than the blind 4 ′, and detailed description thereof is omitted.

  As with the curtain 4 of the first embodiment, the blind 4 ′ of this modification is disposed in a state of being separated from the diffusion plate 3 attached to the light emission window 2e of the pseudo window device 1 ′, and the light emission window 2e. It covers almost the whole area. Accordingly, when white light is emitted from the light emission window 2e through the diffusion plate 3 in the same manner as the pseudo window device 1 of the first embodiment, a part of the emitted white light is shielded by the blind 4 ′, The remaining portion passes through the gap between the blind 4 ′ and the diffusion plate 3 or the window frame member 2 and is radiated outward. Further, when the blade 4 a ′ constituting the blind 4 ′ is not completely closed, white light that has not been shielded from the gaps between the blades 4 a ′ passes and is emitted outward. Therefore, also in this modification, it is possible to eliminate the uncomfortable feeling when the entire area of the light emission window 2e is directly exposed as described above, and white light in a state very close to the light incident from the actual window can be obtained. Combined with being able to obtain a good feeling as if there is an actual window.

  As described above, the light shielding member of the present invention is not limited to the curtain 4 of the first embodiment or the blind 4 'of the present modification, but is white emitted from the light radiation window 2e of the pseudo window device 1. What is necessary is just to block a part of the light and allow the remaining part to pass. That is, in addition to the curtain 4 and the blind 4 ', for example, a shutter, a shoji, a warmer or a lattice can be used, and these can be appropriately selected from a group of members having the same function. May be.

  In the first embodiment, the light emitting module 6 is hidden by attaching the translucent milky white diffusion plate 3 to the light emitting window 2e so that the light emitting module 6 cannot be directly seen from the outside. The diffusion plate 3 is formed of a transparent material, and another diffusion plate formed of a translucent material such as milky white like the diffusion plate 3 used in the first embodiment is formed outside the diffusion plate 3. You may make it overlap. Alternatively, a translucent coating may be applied to the transparent diffusion plate 3 in place of another diffusion plate. In addition, since the light emitting module 6 is not easily seen from the outside by the light shielding member such as the curtain 4 or the blind 4 ′ provided outside the diffusion plate 3, the diffusion plate 3 is formed of a transparent material, It is also possible to omit another diffuser plate formed using a translucent material. Furthermore, the diffusion plate 3 can be omitted.

  In the first embodiment described above and the modifications thereof, a plurality of light emitting modules 6 serving as light sources are arranged behind the diffusion plate 3 attached to the light emission window 2e. It is not limited. Therefore, hereinafter, different arrangement forms of the light emitting modules 6 will be described based on some examples. In each embodiment, the same reference numerals are applied to members configured in the same manner as in the first embodiment, and the detailed description thereof is omitted. The details are mainly on the differences from the first embodiment. Explained.

<Second embodiment>
The simulated window device 101 according to the second embodiment will be described in detail below based on FIG. 18 and FIG. 18 is a schematic front view of the pseudo-window device 101, and FIG. 19 is a schematic cross-sectional view of the pseudo-window device 101 taken along line XIX-XIX in FIG. Below, the whole structure of the pseudo window apparatus 101 is demonstrated in detail first.

  The pseudo window device 101 of this embodiment is different from the pseudo window device 1 of the first embodiment in the internal configuration of the window frame member 2, and the other parts are the same as the pseudo window device 1 of the first embodiment. Composed. That is, the simulated window device 101 of the present embodiment has a box-shaped window frame member 2 similar to the simulated window device 1 of the first embodiment, and includes a first horizontal window frame portion 2a and a second horizontal window frame portion. A light emission window 2e is formed by a window frame composed of 2b, a first vertical window frame portion 2c and a second vertical window frame portion 2d. The pseudo window device 101 is provided with a curtain 4 so as to cover almost the entire area of the light emission window 2e, as in the pseudo window device 1 of the first embodiment. It is suspended from the curtain rail 5 provided along the first horizontal window frame 2a.

  As in the case of the first embodiment, for the sake of convenience, the curtain 4 is indicated by a two-dot chain line in FIG. 18, and the description of the curtain 4 is omitted in FIG. In the following description, it is assumed that the upper side in FIG. 18 is the upper side when the pseudo window device 101 is actually attached to a wall surface and used in this embodiment. Furthermore, as in the case of the first embodiment, the side on which the curtain 4 of the pseudo-window device 101 is provided will be referred to as the front, and the side opposite to the curtain 4 will be described as the rear.

  Also in this embodiment, a plurality of light emitting modules 6 configured in the same manner as in the first embodiment are used as the light source of the pseudo window device 101. Then, as shown in FIG. 18, the holding substrate 107 on which the plurality of light emitting modules 6 are mounted by the same method as in the first embodiment is disposed inside the first vertical window frame portion 2c that forms the light emission window 2e. It arrange | positions along the 1st vertical window frame part 2c, and is being fixed to the window frame member 2 via the several spacer 108. As shown in FIG.

  On the holding substrate 107, a wiring pattern (not shown) for supplying a driving current to each light emitting module 6 is formed as in the holding substrate 7 of the first embodiment. In addition, 16 light emitting modules 6 are mounted on the holding substrate 107 at regular intervals in a row in the longitudinal direction, that is, in the vertical direction in a state of being attached to the window frame member 2. Accordingly, as shown in FIG. 18, the 16 light emitting modules 6 extend from the upper end to the lower end of the light emission window 2 e formed by the window frame member 2 along the first vertical window frame portion 2 c of the window frame member 2. Has been placed. By arranging in this way, each light emitting module 6 is hidden behind the window frame member 2 when the pseudo window device 101 is viewed from the front, so that the pseudo window device 101 looks good. Has improved.

  Also in this embodiment, since the individual light emitting modules 6 are a combination of the first light emitting source and the second light emitting source as described above, a plurality of light emitting modules 6 are arranged as described above. If used, the first light source and the second light source are mixedly arranged. Therefore, it is possible to satisfactorily combine white light emitted from each of the plurality of first light source and second light source.

  Note that the number of the light emitting modules 6 in this embodiment is an example, and can be variously changed according to the size of the pseudo window device 101, the luminance of the radiated light required, the light emission characteristics of the light emitting module 6, and the like. Is possible. Further, the arrangement of the light emitting modules 6 in this embodiment is also an example, and can be variously changed. That is, the light radiating window 2e formed by the window frame member 2 may not be disposed so as to extend from the upper end to the lower end, or may not be disposed at equal intervals as in the present embodiment. However, in order to radiate white light that does not easily cause unnecessary unevenness from the light emission window 2e, it is preferable that the light emission window 2e is arranged at equal intervals from the upper end to the lower end as in the present embodiment.

  Since each light emitting module 6 is arranged at such a position, each light emitting module 6 is directed from the first vertical window frame 2c side toward the second vertical window frame 2d, that is, to the left in FIG. Directed to emit white light towards. In order to radiate the white light emitted from each light emitting module 6 in this way outward from the light radiation window 2e formed by the window frame member 2, a light guide member 103 is attached to the light radiation window 2e. The light guide member 103 is formed using a light-transmitting material such as glass or acrylic resin, and is provided over the entire area of the light emission window 2e.

  The light guide member 103 is formed with a light guide reflection surface 103a that is inclined with respect to the inner back surface 2f of the window frame member 2 in order to reflect the white light emitted from each light emitting module 6 toward the light emission window 2e. Has been. Due to the difference between the refractive index of the light guide member 103 on the light guide reflection surface 103a and the refractive index of the atmosphere around it, the white light emitted from each light emitting module 6 enters the light guide member 103, Reflected by the light guide reflection surface 103a. At this time, the inclination angle of the light guide reflection surface 103a and the emission direction of the white light from each light emitting module 6 are determined so that the white light is reflected toward the light emission window 2e.

  In addition, you may make it reflect the white light from each light emitting module 6 toward the light emission window 2e still more efficiently by vapor-depositing a metal etc. on the light guide reflective surface 103a of the light guide member 103. FIG. The light guide member 103 may be formed using a transparent material, or may be formed using a translucent material such as milky white as in the diffusion plate 3 of the first embodiment. When the light guide member 103 is formed using a translucent material, the white light emitted from each of the first fluorescent member 21 and the second fluorescent member 22 of each light emitting module 6 can be synthesized better. Unnecessary unevenness can be suppressed. Furthermore, a translucent coating such as milky white may be applied to the light emitting surface 103b of the light guide member 103 formed of a transparent member. Alternatively, a diffusion plate formed using a translucent material such as milky white is superimposed on the light emitting surface 103b of the light guide member 103 formed of a transparent member, like the diffusion plate 3 of the first embodiment. May be.

  Since each light emitting module 6 is configured in the same manner as in the first embodiment, white light of the first color temperature T1 emitted from the first fluorescent member 21 and the second fluorescent member 22 of each light emitting module 6 is provided. The white light having the second color temperature T2 is synthesized in the process of radiating outward from the light emitting surface 103b of the light guide member 103 through the light guide member 103, and from the light emitting surface 103b of the light guide member 103. Radiated. Accordingly, each light emitting module 6 has a ratio of the first driving current Id1 and the second driving current Id2 supplied to the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12, respectively, as in the first embodiment. By adjusting, white light having an arbitrary color temperature between the first color temperature T1 and the second color temperature T2 can be emitted.

  In the present embodiment, as in the first embodiment, in order to be able to emit white light having different characteristics in the vertical direction of the light emission window 2e formed by the window frame member 2, light emission is performed. The window 2e is divided into four areas of a window area A, a window area B, a window area C, and a window area D in the vertical direction as in the first embodiment. And although the total number of the light emitting modules 6 used for the pseudo window device 101 is different from the case of the first embodiment, each light emitting module 6 corresponds to the window regions A to D as in the case of the first embodiment. It is divided.

  Therefore, also in the pseudo window device 101, as shown in FIG. 13 as in the first embodiment, drive units 30A to 30D are provided corresponding to the window regions A to D, and each of the drive units 30A to 30D includes The light emitting modules 6A to 6D corresponding to the window areas A to D are connected. An integrated control unit 40 that controls the drive units 30A to 30D in an integrated manner is also provided as in the first embodiment. The configuration of each of the drive units 30A to 30D is the same as that of the first embodiment, and the drive current is supplied from the drive units 30A to 30D to the corresponding light emitting modules 6A to 6D in the same manner as in the first embodiment. Done. However, since the number of light emitting modules 6A to 6D connected to the drive units 30A to 30D is different from that in the first embodiment, the sum of the drive currents supplied by the drive units 30A to 30D is This is different from the case of one embodiment.

  In the simulated window device 101 of the present embodiment configured as described above, the white light emitted in each of the window regions A to D when the integrated control unit 40 performs the light emission control as in the first embodiment. The color temperature and the luminance of the same change in the same manner as in the first embodiment according to the time zone. Therefore, also in the pseudo window apparatus 101 of the present embodiment, the same effect as that of the pseudo window apparatus 1 of the first embodiment can be obtained. Also in this embodiment, various modifications and changes described with respect to the first embodiment can be applied.

<Third embodiment>
Next, the pseudo window device 201 according to the third embodiment will be described in detail based on FIG. 20 and FIG. 20 is a schematic front view of the pseudo-window device 201, and FIG. 21 is a schematic cross-sectional view of the pseudo-window device 201 along the XXI-XXI line in FIG. Below, the whole structure of the pseudo window apparatus 201 is demonstrated in detail first.

  The pseudo window device 201 of this embodiment is different from the pseudo window device 1 of the first embodiment in the internal configuration of the window frame member 2, and the other parts are the same as the pseudo window device 1 of the first embodiment. Composed. That is, the simulated window device 201 of the present embodiment has a box-shaped window frame member 2 similar to the simulated window device 1 of the first embodiment, and includes a first horizontal window frame portion 2a and a second horizontal window frame portion. A light emission window 2e is formed by a window frame composed of 2b, a first vertical window frame portion 2c and a second vertical window frame portion 2d. The pseudo window device 201 is provided with a curtain 4 so as to cover almost the entire area of the light emission window 2e, as in the pseudo window device 1 of the first embodiment. It is suspended from the curtain rail 5 provided along the first horizontal window frame 2a.

  As in the case of the first embodiment, for the sake of convenience, the curtain 4 is indicated by a two-dot chain line in FIG. 20, and the description of the curtain 4 is omitted in FIG. In the following, it is assumed that the upper side in FIG. 20 is the upper side when the pseudo window device 201 is actually attached to a wall surface and used in this embodiment. Furthermore, as in the case of the first embodiment, the side on which the curtain 4 of the pseudo-window device 201 is provided is described as the front, and the side opposite to the curtain 4 is described as the rear.

  Also in this embodiment, a plurality of light emitting modules 6 configured in the same manner as in the first embodiment are used as the light source of the pseudo window device 201. Then, on the holding substrate 207 similar to the holding substrate 107 used in the second embodiment, 16 light emitting modules 6 are arranged in a line at equal intervals in the longitudinal direction, and are mounted by the same method as in the first embodiment. Has been. In this embodiment, two holding substrates 207 on which the plurality of light emitting modules 6 are arranged and mounted are provided. As shown in FIG. 20, one of these two holding members 207 is arranged inside the first vertical window frame portion 2c along the first vertical window frame portion 2c, and the other is the second vertical window frame portion. Arranged along the second vertical window frame 2d inside 2d. The two holding members 207 are oriented so that the mounting surfaces of the light emitting modules 6 face each other, and are fixed to the window frame member 2 via a plurality of spacers 208, respectively.

  By arranging the two holding substrates 207 inward of the window frame member 2 in this way, as shown in FIG. 20, each of the 16 light emitting modules 6 mounted on the two holding substrates 207 becomes a window. Along the first vertical window frame portion 2c and the second vertical window frame portion 2d of the frame member 2, the light emission window 2e is disposed so as to extend from the upper end to the lower end. Accordingly, each light emitting module 6 is hidden from view by the first vertical window frame portion 2c and the second vertical window frame portion 2d when the pseudo window device 201 is viewed from the front. The appearance of the apparatus 201 is improved.

  Also in this embodiment, since the individual light emitting modules 6 are a combination of the first light emitting source and the second light emitting source as described above, a plurality of light emitting modules 6 are arranged as described above. If used, the first light source and the second light source are mixedly arranged. Therefore, it is possible to satisfactorily combine white light emitted from each of the plurality of first light source and second light source.

  The number of the light emitting modules 6 in the present embodiment is an example, and can be variously changed according to the size of the pseudo window device 201, the required luminance of the emitted light, the light emitting characteristics of the light emitting module 6, and the like. Is possible. Further, the arrangement of the light emitting modules 6 in this embodiment is also an example, and can be variously changed. That is, the light radiating window 2e formed by the window frame member 2 may not be disposed so as to extend from the upper end to the lower end, or may not be disposed at equal intervals as in the present embodiment. However, in order to radiate white light that does not easily cause unnecessary unevenness from the light emission window 2e, it is preferable that the light emission window 2e is arranged at equal intervals from the upper end to the lower end as in the present embodiment.

  Since each light emitting module 6 is arranged at such a position, each light emitting module 6 is directed to emit white light toward the holding substrate 207 facing each other. Thus, the white light emitted from each light emitting module 6 is emitted outward from the light emission window 2e formed by the window frame member 2, so that a diffusion plate (light guide member) is provided on the inner back surface 2f of the window frame member 2. ) 203 is installed. The diffusion plate 203 is made of a material having good reflection characteristics with respect to white light emitted from each light emitting module, and a plurality of concave portions formed of spherical surfaces are formed over the entire surface facing the light emission window 2e. Is provided. Note that the surface of the diffusion plate 203 in which such concave portions are formed may be coated so as to further improve the reflection characteristics and the diffusion characteristics with respect to white light emitted by each light emitting module 6.

  By providing such a diffusion plate 203, the white light radiated from each light emitting module 6 is reflected and diffused by a plurality of concave portions formed on the surface of the diffusion plate 203, and finally outward from the light emission window 2e. To be emitted. The light emission window 2e is provided with a cover plate 209 that closes the light emission window 2e and is transparent to the white light thus reflected and diffused by the diffusion plate 203.

  The cover plate 209 is formed of glass or acrylic resin, for example, and may use a transparent material, or may use a translucent material such as milky white like the diffusion plate 3 of the first embodiment. When the cover plate 203 is formed using a translucent material, white light emitted from the first fluorescent member 21 and the second fluorescent member 22 of each light emitting module 6 together with diffusion by the concave portion of the diffusion plate 203. Can be performed more satisfactorily, and generation of unnecessary unevenness can be suppressed. Further, the concave portion of the diffusion plate 203 can be made invisible or difficult to see from the outside.

  Since each light emitting module 6 is configured in the same manner as in the first embodiment, white light of the first color temperature T1 emitted from the first fluorescent member 21 and the second fluorescent member 22 of each light emitting module 6 is provided. The white light having the second color temperature T2 is synthesized in the process of being emitted outward from each light emitting module 6 through the diffusion plate 203 and the cover plate 209. Accordingly, each light emitting module 6 has a ratio of the first driving current Id1 and the second driving current Id2 supplied to the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12, respectively, as in the first embodiment. By adjusting, white light having an arbitrary color temperature between the first color temperature T1 and the second color temperature T2 can be emitted.

  In the present embodiment, as in the first embodiment, in order to be able to emit white light having different characteristics in the vertical direction of the light emission window 2e formed by the window frame member 2, light emission is performed. The window 2e is divided into four areas of a window area A, a window area B, a window area C, and a window area D in the vertical direction as in the first embodiment. Although the total number of the light emitting modules 6 used in the pseudo window device 201 is different from that in the first embodiment, each of the two holding members 207 has each light emitting module 6 in the window area as in the first embodiment. It is divided corresponding to A to D.

  Therefore, also in the pseudo window device 201, as shown in FIG. 13 as in the first embodiment, drive units 30A to 30D are provided corresponding to the window areas A to D, and each of the drive units 30A to 30D includes: The light emitting modules 6A to 6D corresponding to the window areas A to D are connected. An integrated control unit 40 that controls the drive units 30A to 30D in an integrated manner is also provided as in the first embodiment. And the structure of each drive unit 30A-30D is the same as that of the case of 1st Example, and supply of the drive current from drive unit 30A-30D to corresponding light emitting module 6A-6D is also carried out similarly to 1st Example. Done. However, since the number of light emitting modules 6A to 6D connected to the drive units 30A to 30D is different from that in the first embodiment, the sum of the drive currents supplied by the drive units 30A to 30D is This is different from the case of one embodiment.

  In the simulated window device 201 of the present embodiment configured as described above, the white light emitted in each of the window regions A to D by the integrated control unit 40 executing the light emission control as in the first embodiment. The color temperature and brightness of the image change according to the time zone. Therefore, also in the pseudo window device 201 of the present embodiment, the same effect as that of the pseudo window device 1 of the first embodiment can be obtained. Also in this embodiment, various modifications and changes described with respect to the first embodiment can be applied.

  As described above, in each of the embodiments and the modifications thereof, the first color temperature is obtained by synthesizing the white light emitted from the first fluorescent member 21 and the second fluorescent member 22 of the light emitting module 6. It is possible to obtain good white light close to natural light in which the color temperature can be adjusted in the range from T1 to the second color temperature T2. And the integrated control part 40 performs light emission control, and changes the color temperature and brightness | luminance of white light radiated | emitted from the light emission window 2e formed by the window frame member 2 suitably in the up-down direction at the time of actual use. White light in a state very close to light incident from the actual window can be emitted from the light emission window 2e. Furthermore, by providing a light shielding member such as the curtain 4 or the blind 4 ', the uncomfortable feeling when the entire area of the light emission window 2e is directly visible is eliminated, and the light entering from the actual window as described above is eliminated. Combined with the fact that white light in an extremely close state can be obtained, it is possible to obtain a feeling as if there is an actual window.

  In each of the embodiments and the modifications thereof, the first light emitting source that emits white light having the first color temperature T1 by converting the wavelength of the near ultraviolet light emitted from the first semiconductor light emitting element 11 by the first wavelength conversion member 21. And a light emitting module 6 that forms a second light emitting source that emits white light having a second color temperature T2 by converting the wavelength of near ultraviolet light emitted from the second semiconductor light emitting element 12 by the second wavelength conversion member 22 Yes. For this reason, compared with the conventional pseudo window apparatus which synthesize | combines the light itself emitted from semiconductor light emitting elements, such as LED, and obtains white light, from the light emitting module 6, the directivity is suppressed and white light excellent in diffusibility is obtained. Therefore, it is possible to shorten the distance for satisfactorily synthesizing the white light from the light emitting module 6 as compared with the conventional pseudo window device. As a result, it is not necessary to unnaturally enlarge the dimensions such as the depth of the pseudo window device as a window, and it is possible to obtain a pseudo window device that does not feel uncomfortable in appearance.

  Furthermore, it is possible to obtain a feeling close to that of an actual window as described above, while the structure is simple and the cost is lower than that of a pseudo window device using an image display device. In addition, by adopting the light source for the first semiconductor light emitting element 11 and the second semiconductor light emitting element 12 as described above, the power consumption can be reduced as compared with the conventional pseudo window device using a fluorescent lamp or an incandescent lamp as a light source. It can be kept low.

<Fourth embodiment>
In each of the above-described embodiments, the light emitting module 6 is used as the light source of the pseudo window device. The light emitting module 6 includes a plurality of first semiconductor light emitting elements 11 mounted and arranged on the substrate 10 and a first fluorescent member 21 provided so as to cover the first semiconductor light emitting elements 11. A plurality of second semiconductor light emitting elements 12 that constitute one light source and are similarly mounted on the substrate 10 and a second fluorescent member 22 provided so as to cover the second semiconductor light emitting elements 12 Two emission sources were configured. However, the first and second light emitting sources used in the pseudo window device of the present invention are not limited to such a configuration, and various configurations can be used as long as the gist of the present invention is not changed. It is.

  Hereinafter, an example thereof will be described as a fourth embodiment of the present invention. The pseudo-window device of the present embodiment is different from the first and second light-emitting sources only in the configuration, and the other configurations are the same as those of the embodiments described above and the modifications thereof. Then, description is abbreviate | omitted and demonstrates the structure of a 1st and 2nd light emission source in detail.

  FIG. 22 is a schematic cross-sectional view schematically showing the first light emission source 301 according to this example. Note that the second light emission source 302 not shown in FIG. 22 is also different from the first light emission source 301 only in the fluorescent member being used, as described later, and other than that is the same as the first light emission source 301. Composed. Therefore, in the following, the present embodiment will be described mainly with respect to the first light emission source 301, and the second light emission source 302 will be described as appropriate according to the first light emission source 301 shown in FIG.

  As shown in FIG. 22, the first semiconductor light emitting element 311 is mounted on the substrate 310 also in the first light emission source 301 of the present embodiment. However, in this embodiment, a metal substrate having excellent heat dissipation is used for the substrate body 310a of the substrate 310. As the metal substrate, it is preferable to use an aluminum substrate, a copper substrate, or the like that has excellent heat dissipation, but among these, an aluminum substrate is preferable from the viewpoints of cost, lightness, and heat dissipation. Since such a metal substrate body 310a is used, wiring patterns 317 and 318 are formed on the surface of the substrate 310 on which the first semiconductor light emitting element 311 is mounted, with an electrical insulating layer 310b interposed therebetween. Has been. The material of the substrate body 310a is not limited to such a metal substrate, and it has excellent electrical insulation and good heat dissipation as in the light emitting modules 6 of the above-described embodiments. An electrically insulating material such as alumina-based ceramic may be used.

  Similar to the light emitting module 6 of each of the embodiments described so far, the first semiconductor light emitting element 311 is an LED chip that emits near ultraviolet light having a peak wavelength of 405 nm. For example, an InGaN semiconductor is used for the light emitting layer. GaN LED chips that emit light in the near ultraviolet region are used. The type and emission wavelength characteristics of the first semiconductor light emitting element 311 are not limited to this, and various LED chips can be used as long as the gist of the present invention is not changed. Specifically, an LED chip that emits blue light may be used as an LED chip other than the LED chip that emits near-ultraviolet light. Accordingly, in this embodiment, the peak wavelength of the light emitted from the first semiconductor light emitting element 311 is within the wavelength range of 380 nm to 500 nm in the case of the LED chip emitting near ultraviolet light, and 430 nm to 500 nm in the case of the LED chip emitting blue light. It is preferable that it exists in.

  The first semiconductor light emitting element 311 has one of two electrodes (for example, a p electrode) for supplying a driving current on the upper surface and the other (for example, an n electrode) on the lower surface, and the upper electrode is a metal. The wire 311a is connected to the wiring pattern 317, and the lower electrode is directly connected to the wiring pattern 318 using the eutectic solder 311b. Note that the method of mounting the first semiconductor light emitting element 311 on the substrate 310 is not limited to this, and an appropriate method may be selected according to the position of the electrode provided on the first semiconductor light emitting element 311. Is possible. For example, after the first semiconductor light emitting element 311 is bonded and fixed to a predetermined position of the substrate 310, the two electrodes positioned on the upper surface side of the first semiconductor light emitting element 311 are connected to the wiring patterns 317 and 318 of the substrate 310 by metal wires. Double wire bonding, or flip chip mounting in which two electrodes located on the lower surface side of the first semiconductor light emitting element 311 are connected to the wiring patterns 317 and 318 via metal bumps as in the first embodiment described above. Can be adopted.

  A first fluorescent member (first wavelength converting member) 321 similar to that of the above-described embodiment is provided for each of the first semiconductor light emitting elements 311 mounted on the substrate 310 in this way. The first fluorescent member 321 is provided so as to cover the first semiconductor light emitting element 311 using, for example, a dispenser. Similarly to the first light emission source 301, the second light emission source 302 is provided with a second fluorescent member (second wavelength conversion member) so as to cover the second semiconductor light emitting element. The fluorescent member is different from the first fluorescent member 321.

  The first fluorescent member 321 is configured in the same manner as the first fluorescent member 21 of the light emitting module 6 in each of the above-described embodiments, and converts the near-ultraviolet light emitted from the first semiconductor light emitting element 311 to a first color temperature. A first phosphor 323 that emits T1 white light is dispersedly held in the first filler 324. The second fluorescent member in the second light emitting source 302 is also configured in the same manner as the second fluorescent member 22 of the light emitting module 6 in each of the above-described embodiments, and converts near-ultraviolet light emitted from the second semiconductor light emitting element into a wavelength. Thus, the second phosphor that emits white light having the second color temperature T2 is dispersed and held in the second filler.

  By combining the first light emission source 301 and the second light emission source 302 configured as described above and using them in the pseudo window device, the first color temperature emitted from the first light emission source 301 is obtained in the same manner as each of the embodiments described above. White light obtained by synthesizing white light of T1 and white light of the second color temperature T2 emitted from the second light emission source 302 can be emitted from the pseudo window device. Accordingly, as in the above-described embodiments, the first driving current supplied to the first semiconductor light emitting element 311 used for the first light emission source 301 and the second semiconductor light emission used for the second light emission source 302 are used. By controlling the second drive current supplied to the element 312, the same functions and effects as those in the above embodiments can be obtained.

  In particular, in the case of the present embodiment, separate fluorescent members are provided for the individual semiconductor light emitting elements, so the degree of freedom in layout of the first light emitting source 301 and the second light emitting source 302 is increased, and the installation space is increased. Even when there are restrictions on the size, shape, position, etc., it is possible to arrange the light emitting sources at high density in a flexible manner corresponding to such restrictions. In particular, if the first light emission source 301 and the second light emission source 302 are mixed and distributed, the white light emitted from each of the first light emission source 301 and the second light emission source 302 can be combined more satisfactorily. it can.

  An example of such a distributed arrangement is shown in FIG. In the example of FIG. 23, the first light emission sources 301 and the second light emission sources 302 are alternately arranged when viewed in the horizontal column of FIG. 23, and each of the two adjacent columns emits light in the direction of each column. Since the positions are shifted by the radius of the source, the white light emitted from both the first light source 301 and the second light source 302 can be satisfactorily synthesized while being arranged with high density. Note that the arrangement of the first light source 301 and the second light source 302 is not limited to this, and can be variously changed as necessary. Further, the shapes of the first light emission source 301 and the second light emission source 302 are not limited to this, and can be variously changed as necessary.

  This is the end of the description of each of the embodiments of the present invention and the pseudo window device according to the modification. However, the present invention is not limited to these embodiments and modifications, and the gist of the present invention may be changed. As long as there is not, it can change variously.

  For example, in each of the above-described embodiments and modifications, the integrated control unit 40 performs light emission control, so that the color temperature and luminance radiated from each of the window areas A to D of the light emission window 2e according to time and the like are set. Although it is changed, at least one of the color temperature and the luminance may be fixedly different in part or all of the window regions A to D. Also in this case, when using the pseudo-window device, if the lower window region is made to have at least one of the color temperature and the brightness lower than the upper window region, a feeling close to that of an actual window can be obtained. Obtainable. Furthermore, in the light emission control, only one of the color temperature and the luminance may be changed.

  Further, in each of the above-described embodiments and modifications, the window frame member 2 is formed in a simple box shape, but the shape of the window frame member 2 can be various shapes similar to an actual window, Various designs can be applied to bring the appearance closer to the actual window.

1,1 'pseudo window device 2 window frame member 2c first vertical window frame (window frame)
2d Second vertical window frame (window frame)
2e Light emission window 3 Diffusion plate (light guide member)
4 Curtain (light shielding member)
4 'blind (light shielding member)
6, 6A, 6B, 6C, 6D Light emitting module 10 Substrate 11 First semiconductor light emitting element 12 Second semiconductor light emitting element 13 Wall member (reflector)
14 Partition member 15 1st light emission area | region 16 2nd light emission area | region 21 1st fluorescence member (1st wavelength conversion member)
22 2nd fluorescence member (2nd wavelength conversion member)
30, 30A, 30B, 30C, 30D Drive unit (drive control means)
40 Integrated control unit (drive control means)
DESCRIPTION OF SYMBOLS 101 Pseudo window apparatus 103 Light guide member 103a Light guide reflective surface 201 Pseudo window apparatus 203 Diffusion plate (light guide member)
301 1st light emission source 302 2nd light emission source 310 Substrate 311 1st semiconductor light emitting element 321 1st fluorescence member (1st wavelength conversion member)

Claims (19)

A window frame member forming a light emission window surrounded by the window frame;
A first semiconductor light emitting element that emits light by supplying a first drive current; and a first wavelength conversion that emits white light having a first color temperature by converting the wavelength of all or part of the light emitted by the first semiconductor light emitting element. At least one first light emitting source having a member;
A second semiconductor light emitting element that emits light by supplying a second driving current, and white light having a second color temperature higher than the first color temperature by wavelength-converting all or part of the light emitted by the second semiconductor light emitting element At least one second light-emitting source having a second wavelength conversion member that radiates
Drive control means for controlling the first drive current and the second drive current;
A light shielding member provided outside the light emission window so as to face the light emission window, and shielding a part of white light emitted from the light emission window and allowing the remaining part to pass therethrough. A pseudo window device.   A light guide member that radiates white light obtained by synthesizing white light emitted from the first light emission source and white light emitted from the second light emission source outward from the light emission window of the window frame member. The pseudo-window device according to claim 1, further comprising: The light guide member has a plate shape and is provided in a light emission window of the window frame member, and is obtained by combining white light emitted from the first light emission source and white light emitted from the second light emission source. The pseudo-window device according to claim 2, wherein the pseudo-window device is a translucent diffusing member that diffuses light and radiates outward from the light radiation window.   Each of the plurality of first light emission sources and second light emission sources is disposed along the diffusion member inward of the diffusion member provided in the light emission window of the window frame member. The pseudo-window device according to claim 3.   The pseudo-window device according to claim 4, wherein the first light source and the second light source are mixed and distributed. The first light emission source and the second light emission source are respectively disposed inside the window frame member along the window frame of the window frame member,
The pseudo-window device according to claim 2, wherein the light guide member includes a light guide reflection surface that reflects white light from the first light emission source and the second light emission source and guides the white light to the light emission window. . The first light emission source and the second light emission source are respectively disposed inside the window frame member along the window frame of the window frame member,
The light guide member is disposed inward of the light emission window of the window frame member, and diffuses and reflects white light from the first light emission source and the second light emission source toward the light emission window. The artificial window device according to claim 2, wherein the artificial window device has an uneven surface.   The pseudo window device according to claim 6 or 7, wherein a plurality of the first light emission sources and the second light emission sources are respectively disposed along the window frame of the window frame member.   The pseudo-window apparatus according to claim 8, wherein the first light source and the second light source are mixed and distributed with each other. A plurality of pairs of the first light source and the second light source;
The drive control means supplies the first drive current and the second drive current to be supplied to a pair of the first light emission source and the second light emission source that serve as a light source of white light emitted from the first region of the light emission window. And the first light source and the second light source that serve as a light source of white light emitted from the second region of the light emission window that is lower than the first region when the pseudo window device is used. The pseudo-window device according to claim 1, wherein a second ratio of the first drive current and the second drive current supplied to each pair is different.   The drive control means may be configured so that the color temperature of white light emitted from the first region is higher than the color temperature of white light emitted from the second region. The pseudo-window device according to claim 10, wherein a ratio with two drive currents is controlled.   The pseudo-window device according to claim 10 or 11, wherein the drive control unit changes at least one of the first ratio and the second ratio according to time.   In addition to controlling the ratio between the first drive current and the second drive current, the drive control means adjusts the brightness of the white light emitted from the first region and the white light emitted from the second region. The pseudo-window device according to any one of claims 10 to 12, wherein magnitudes of the first drive current and the second drive current are controlled so as to be different from luminance.   The pseudo-window device according to claim 1, wherein the drive control unit controls a ratio of the first drive current and the second drive current according to time.   The drive control means obtains the white light emitted from the first light emission source and the white light emitted from the second light emission source in combination with the control of the ratio between the first drive current and the second drive current. The pseudo-window device according to claim 14, wherein magnitudes of the first drive current and the second drive current are controlled so that brightness of white light to be changed is changed. Each of the first light source and the second light source constitutes a light emitting module by being combined with each other in pairs.
The light emitting module
A substrate on which the first semiconductor light emitting device and the second semiconductor light emitting device are mounted;
A wall member surrounding the first semiconductor light emitting element and the second semiconductor light emitting element and provided on the substrate;
A partition member that divides a region inside the wall member into a first light emitting region in which the first semiconductor light emitting element is disposed and a second light emitting region in which the second semiconductor light emitting element is disposed;
The first wavelength conversion member housed in the first light emitting region;
The pseudo-window device according to claim 1, further comprising: the second wavelength conversion member housed in the second light emitting region.   The one or more first semiconductor light emitting elements are disposed in the first light emitting region, and one or more second semiconductor light emitting elements are disposed in the second light emitting region. The pseudo-window device described.   The pseudo-window device according to claim 1, wherein the first semiconductor light emitting element and the second semiconductor light emitting element emit light having a peak wavelength in a wavelength range of 380 nm to 430 nm.   The pseudo-window device according to claim 1, wherein the light shielding member is one selected from the group of a curtain, a blind, a shutter, a shoji screen, a warm bed, and a lattice.