JP6160956B2 - Lighting system - Google Patents

Description

  The present invention relates to a lighting system, and more particularly to a lighting system capable of realizing a light environment that improves the intellectual productivity of a resident in a house or office.

  As a lighting method for energy saving in offices and the like, a task and ambient lighting method using both a task lighting device and an ambient lighting device has attracted attention. In this lighting system, energy saving is achieved by efficiently illuminating the desk surface of the office worker from a nearby position with a task illumination device and reducing the ambient illumination device (mainly the ceiling illumination device) that illuminates the entire office floor.

  In addition, the work area centered on the work object and the surrounding area are illuminated with different light colors, that is, different color temperatures, and a clear illuminance gradient (edge feeling) is provided in the illumination environment. An illumination technique is disclosed that provides a light environment that gives a desired illuminance to an area and increases the degree of concentration (for example, see Patent Document 1).

JP 2003-031379 A

  However, in the lighting methods in which the light color of the work area and the peripheral part are different, in these lighting environments, the degree of concentration is improved by the edge feeling of the irradiation surface of the work area, or the normal rhythm of the body is realized. When the light colors of the work area and the peripheral part are greatly different, the user is uncomfortable due to a sense of discomfort. In addition, since a preferred light color for increasing the degree of concentration is not used as the light color of the work area, the user feels uncomfortable due to a sense of incongruity, which reduces work efficiency and impairs intellectual productivity. .

  In view of the above problems, an object of the present invention is to provide an illumination system that increases the user's concentration and improves intelligent productivity.

  In order to solve the above problems, an illumination system according to the present invention has an illumination environment in which a work area centering on a work object and a peripheral part of the work area exist, and the work area and the peripheral part are provided. An ambient illumination device that illuminates a space including the task, a task illumination device that is installed below the ambient illumination device and illuminates the work area, a lighting state of the space including the work area and the peripheral portion, and the work area A sensor that detects at least one of the lighting states of the light source, and a control unit that controls the ambient lighting device and the task lighting device. The ambient lighting device, the task lighting device, the sensor, and the control unit include: Each having a communication means, and the control unit is based on information on an illumination state detected by the sensor received via the communication means. There are, performs lighting control of the ambient illumination system and the task lighting device.

  The control unit may adjust a color temperature of at least one of the task lighting device and the ambient lighting device.

  The control unit may be configured such that when the color temperature of the peripheral area and the color temperature of the work area are different by 2000K or more, a difference between the color temperature of the work area and the color temperature of the peripheral area is less than 2000K. At least one of the ambient lighting device and the task lighting device may be controlled to change at least one of the color temperature of the peripheral portion and the color temperature of the work area.

  The sensor may detect a color temperature as the illumination state.

  The sensor may be installed above or around the task lighting device, and the control unit may perform lighting control of the task lighting device based on an illumination state detected by the sensor.

  The sensor may be installed below the task lighting device or in the work area, and the control unit may perform lighting control of the ambient lighting device based on a lighting state detected by the sensor.

  In addition, the ambient lighting device may be controlled in accordance with the usage status of the task lighting device by the user.

  In addition, the task lighting device may be controlled in accordance with the usage status of the ambient lighting device by the user.

  The control unit may perform lighting control of at least one of the ambient lighting device and the task lighting device according to a user's PC usage status.

  The control unit may perform lighting control of at least one of the ambient lighting device and the task lighting device in accordance with a signal transmitted using a portable terminal used by a user.

  According to the present disclosure, it is possible to provide a lighting system that increases a user's concentration and improves intelligent productivity.

It is a figure which shows the ease of concentration with respect to base illumination intensity. It is a figure which shows the comfort of the light environment with respect to base illumination intensity. It is a figure which shows the naturalness of the light environment with respect to base illumination intensity. It is a block diagram which shows the structure of the illumination system which concerns on Embodiment 1. FIG. It is the schematic which shows the structure of the illumination system which concerns on Embodiment 1. FIG. It is the schematic which shows the structure of the illumination system which concerns on Embodiment 2. FIG. It is the schematic which shows the structure of the illumination system which concerns on Embodiment 2. FIG. It is the schematic which shows the structure of the illumination system which concerns on Embodiment 2. FIG. It is the schematic which shows the structure of the illumination system which concerns on Embodiment 2. FIG. FIG. 6 is a schematic diagram illustrating a configuration of an illumination system according to Embodiment 3. FIG. 6 is a schematic diagram illustrating a configuration of an illumination system according to Embodiment 3. FIG. 6 is a schematic diagram illustrating a configuration of an illumination system according to Embodiment 3. FIG. 6 is a schematic diagram illustrating a configuration of an illumination system according to Embodiment 3.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that each of the embodiments described below shows a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, constituent elements, arrangement positions and connecting forms of constituent elements, processes, order of processes, and the like shown in the following embodiments are merely examples and do not limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept of the present invention are described as optional constituent elements.

  Each figure is a schematic diagram and is not necessarily illustrated strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, The overlapping description is abbreviate | omitted or simplified.

(Embodiment 1)
The illumination system according to the present embodiment is a system that controls the color temperature of the surrounding environment and the color temperature of the personal work area to be the same color temperature. In order to sense the color temperature of the surrounding environment, for example, a sensor (color temperature sensor) is installed near the window where external light enters or on the task lighting device. In addition, in order to sense the color temperature in the work area, color temperature sensors are also installed in the work area and the desk stand. The ambient lighting device, the task lighting device, and the color temperature sensor perform bidirectional communication with the control unit by PLC (Power Line Communications) communication or other wireless communication.

  First, in order to realize the illumination system according to the present embodiment, the results of subjective evaluation experiments conducted to grasp the effects on light color, illuminance ratio, light color ratio, light distribution concentration and spatial evaluation will be described. To do.

  The outline of the experiment conducted is as follows.

  There were 30 subjects.

  The subject performed a task (slip classification) for 1 minute, and then subjectively evaluated the impression. As evaluation items, (1) readability, (2) work surface, and (3) the entire space were evaluated.

  For readability, the readability of paper characters on a desk or PC screen characters was evaluated.

  In terms of work, evaluations were focused on concentration, work progress, eye fatigue, brightness, comfort, and likes and dislikes about the light environment.

  The overall space was evaluated for the natural atmosphere, ease of speaking, comfort, concentration, brightness, comfort, likes and dislikes.

  As experimental parameters, different conditions are prepared for the light color of the task illumination, the light color of the base illumination, the illuminance of the base illumination, and the light distribution of the task illumination. went.

  The light color conditions for the task illumination were two kinds of conditions of 5000K and 6000K as the light colors.

  As the light color of the base illumination, three conditions of 3000K, 5000K, and 6700K were used. In addition, about 4200K for a part.

  The illuminance of the base illumination was set to three conditions of 100 lx, 300 lx, and 750 lx. At this time, the work surface was made constant at 750 lx. That is, the base illuminance of 100 lx is when the illuminance by ambient illumination is 100 lx and the illuminance by task illumination is 650 lx. The base illuminance of 300 lx is when the illuminance by ambient illumination is 300 lx and the illuminance by task illumination is 450 lx. The base illuminance of 750 lx is when the illuminance by ambient illumination is 750 lx and the illuminance by task illumination is 0 lx. The base illuminance is none (0lx) is the case where the illuminance by ambient illumination is none (0lx) and the illuminance by task illumination is 750 lx.

  The light distribution of the task illumination is a light distribution that irradiates a narrow angle, that is, a range of about A3 paper. In addition, the wide angle of the task lighting was set to illuminate the entire desk surface.

  The results of the experiments conducted under the above conditions are summarized by the light environment, in particular, (1) ease of concentration, (2) comfort, and (3) naturalness due to the difference in color temperature between task lighting and ambient lighting. The results are shown in FIGS. 1A to 1C.

  FIG. 1A is a diagram illustrating ease of concentration with respect to base illuminance.

  In FIG. 1A, the task illumination has a narrow light distribution, and the illuminance at the center of the desk surface is constant at 750 lx. Regarding the color temperature, the color temperature of the base illumination (ie, ambient illumination) is 3000, 4200, 5000, 6700K, 5 types without base illumination, the task color temperature is 5000, 6000, and 3 types without task illumination, respectively. The evaluation item “easy to concentrate” is evaluated. The evaluation result is a seven-level evaluation, and the vertical axis indicates the average value of 30 subjects. The horizontal axis shows (i) the result of the ambient lighting 300 lx and the task lighting 450 lx at the color temperature of 5000 K of the task lighting, the result of the ambient lighting 0 lx and the task lighting 750 lx, and (ii) the color temperature of the task lighting at 6000 K. The evaluation results are shown as follows: results of ambient illumination 300 lx and task illumination 450 lx, results of ambient illumination 0 lx and task illumination 750 lx, and (iii) results of ambient illumination 750 lx and task illumination 0 lx.

  From the above results, it can be seen that the evaluation result of the subject “easy to concentrate” is higher when there is task lighting than when there is no task lighting. Moreover, as for the color temperature of task illumination, it can be seen that the evaluation result is higher at 6000K than at 5000K. Furthermore, it is preferable that the light color of the task illumination is close to the light color of the ambient illumination. For both the task illumination color temperature of 6000K and 5000K, when the ambient illumination color temperature is 3000K, “ “Easy to concentrate” is low. In particular, when there is a color temperature difference larger than 2000K between the color temperature of the task illumination and the color temperature of the ambient illumination, it can be seen that the evaluation is low.

  That is, it is understood that the light environment in which the subject is “easy to concentrate” preferably uses task lighting and ambient lighting together, and the color temperature difference between the task lighting color temperature and the ambient lighting color temperature is preferably less than 2000K. .

  FIG. 1B is a diagram illustrating the comfort of the light environment with respect to the base illuminance. FIG. 1C is a diagram illustrating the naturalness of the light environment with respect to the base illuminance.

  FIG. 1B shows the seven-stage evaluation result of the evaluation item “comfortable” in the experiment conditions of the above-described evaluation experiment for ease of concentration, and FIG. 1C shows the seven-stage evaluation result of the evaluation item “natural” in the experiment described above. . In both FIG. 1B and FIG. 1C, the task illumination has a narrow light distribution, and the illuminance of the ambient illumination and the task illumination is set so that the illuminance on the desk surface is constant at 750 lx.

  As shown in FIG. 1B and FIG. 1C, in the case of only ambient lighting (that is, when the task color temperature is “none”), high evaluation is obtained for both comfort and naturalness of the light environment. That is, the evaluation that the light environment is comfortable or natural is obtained.

  In addition, in the case of only task lighting (that is, in the case where the base illuminance is 0 lx at each of the task color temperatures of 5000K and 6000K), low evaluation is obtained for both the comfort and naturalness of the light environment. That is, evaluation that light environment is not comfortable or not natural is obtained.

  Furthermore, when ambient lighting and task lighting are used together (that is, when the base illuminance is 100 lx or 300 lx at task color temperatures of 5000 K and 6000 K, respectively), a difference appears in evaluation depending on the color temperature. In this case, a higher evaluation is obtained when the light colors of the illumination by the task illumination device and the illumination by the ambient illumination device are closer. That is, when the base illuminance is 300 lx (the task color temperature is 450 lx at this time), high evaluation is obtained for both the comfort and the naturalness of the light environment.

  From the above, when task lighting is narrow light distribution and the desk surface illuminance is constant 750 lx, it is preferable to use task lighting and ambient lighting together as a lighting environment that is comfortable without giving a sense of incongruity and improves the degree of concentration. I understand. Moreover, it is better that the color temperature difference between the task illumination and the ambient illumination is close, and for example, the color temperature difference is preferably less than 2000K.

  Next, the illumination system according to the present embodiment will be described with reference to FIGS. FIG. 2 is a block diagram showing a configuration of the illumination system 1 according to the present embodiment. FIG. 3 is a schematic diagram showing the configuration of the illumination system 1 according to the present embodiment.

  As shown in FIG. 2, the lighting system 1 includes an ambient lighting device 10, a task lighting device 20, a control unit 30, and a lighting state detection sensor 40. In addition, the ambient lighting device 10, the task lighting device 20, the lighting state detection sensor 40, and the control unit 30 each have a communication unit 32. The control unit 30 performs lighting control of the ambient lighting device 10 and the task lighting device 20 based on the lighting state information detected by the lighting state detection sensor 40 received via the communication unit 32. According to this configuration, in the lighting system 1, the color temperature of the ambient lighting device 10 and the task lighting device 20 is adjusted, and a strong edge feeling due to the light colors of the ambient lighting device 10 and the task lighting device 20 being significantly different. And discomfort due to the user's uncomfortable feeling can be reduced. Therefore, the user's concentration degree can be increased and the intelligent productivity can be improved.

  The ambient lighting device 10 is a lighting device that mainly illuminates the entire office floor, such as a ceiling lighting device. The task lighting device 20 is a lighting device that provides desired lighting to a work area centered on a work target, and is, for example, a desk lighting device. Any number of ambient lighting devices 10 and task lighting devices 20 may be provided.

  For example, LEDs are used as light sources of the ambient lighting device 10 and the task lighting device 20. One of the features of LEDs is that it is easy to adjust the color temperature (light color) of the light source. When LEDs are employed in the ambient lighting device 10 and the task lighting device 20, not only the light output but also the color temperature is controlled in conjunction with the ambient lighting device 10 and the task lighting device 20.

  The control unit 30 adjusts the light colors of the ambient lighting device 10 and the task lighting device 20, that is, the color temperature. According to this configuration, the illumination environment can be controlled more dynamically, and various functions can be provided by changes due to the color temperature of the illumination space.

  Specifically, the control unit 30 controls the color temperatures of the ambient lighting device 10 and the task lighting device 20 based on the lighting state detected by the lighting state detection sensor 40. At this time, the control unit 30 controls the ambient lighting device 10 and the task lighting device 20 using a communication system such as PLC (Power Line Communications) communication or wireless communication. The control unit 30 may control the illuminance and the light distribution in addition to the color temperature for the ambient lighting device 10 and the task lighting device 20.

  The illumination state detection sensor 40 is, for example, a color illuminance meter for detecting a color temperature, and detects an illumination environment by the ambient illumination device 10 and the task illumination device 20, that is, a color temperature. According to this configuration, the illumination state detection sensor 40 is a color temperature sensor, so that a simpler system can be achieved.

  Further, the illumination state detection sensor 40 transmits the detected illumination state to the control unit 30 by communication means such as PLC communication or other wireless communication means. The illumination state detection sensor 40 may detect illuminance and light distribution in addition to the color temperature.

  The illumination state detection sensor 40 includes an illumination state detection sensor 40a that detects the illumination state of the work area, and an illumination state detection sensor 40b that detects the illumination state of the space including the work area and the peripheral portion. The illumination state detection sensor 40b mainly detects the illumination state of the ambient illumination device 10 by being installed in the vicinity of the ambient illumination device 10. Moreover, the illumination state detection sensor 40a mainly detects the illumination state of the task illumination device 20 by being installed in the vicinity of the task illumination device 20. By providing the lighting state detection sensor 40a for the task lighting device 20 and the lighting state detection sensor 40b for the ambient lighting device 10, the lighting system 1 can accurately match the mutual colors of the ambient lighting device 10 and the task lighting device 20. The temperature can be recognized.

  Note that the illumination states detected by the illumination state detection sensors 40a and 40b may include the effects of illumination by the ambient illumination device 10 and the task illumination device 20, respectively. Further, the illumination state detected by the illumination state detection sensors 40a and 40b may include the influence of external light emitted from the window into the room.

  FIG. 3 shows a lighting system 1 that can control the ambient lighting device 10 and the task lighting device 20.

  As described above, the ambient lighting device 10, the task lighting device 20, and the lighting state detection sensor 40 are in a state in which bidirectional communication can be performed with the control unit 30 using a communication system such as PLC communication or wireless communication. For example, even if a newly installed task stand is in an illumination state different from ambient lighting, the sensor can detect the illumination state of the introduced task stand and control the ambient lighting device according to the illumination state. . The same applies to the ambient lighting device.

  For example, even if the task lighting device 20 installed on the work desk 50 has a color temperature different from that of the ambient lighting device 10 installed on the ceiling, the lighting state detection sensor 40 (the lighting state detection sensor 40a) performs the task lighting. When the color temperature of the device 20 is detected, the control unit 30 controls the color temperature of the ambient lighting device 10 according to the color temperature detected by the illumination state detection sensor 40a.

  Specifically, the control unit 30 adjusts the color temperature output from the ambient lighting device 10 so as to reduce the difference between the color temperature of the peripheral portion and the color temperature of the work area according to the light color of the work area. Control. That is, when the peripheral color temperature includes the influence of external light or the like, the color temperature detected by the illumination state detection sensor 40a includes the color temperature including the influence of external light or the like. Even if it is a case, the control part 30 adjusts the ambient illuminating device 10 irrespective of the influence of external light. The control unit 30 may also control the task lighting device 20 together with the ambient lighting device 10.

  For example, the control unit 30 adjusts the color temperature of the ambient lighting device 10 so that the color temperature difference between the color temperature of the ambient lighting device 10 and the color temperature of the task lighting device 20 is the same color temperature of less than 2000K. To do. The color temperature of the ambient lighting device 10 may be adjusted automatically by the ambient lighting device 10, or a color temperature adjustment dial or a color temperature selection / adjustment button (not shown) provided on the ambient lighting device 10 may be adjusted by the user. May be manually adjusted by operating. As a result, the color temperatures of the peripheral portion and the work area can be set to substantially the same color temperature, and a space without a sense of incongruity can be obtained.

  Moreover, even if the task lighting device 20 has a different color temperature from the ambient lighting device 10, if the lighting state detection sensor 40 (the lighting state detection sensor 40 b) detects the color temperature of the ambient lighting device 10, the control unit 30 The color temperature of the ambient lighting device 10 is controlled in accordance with the color temperature detected by the illumination state detection sensor 40a. Specifically, the control unit 30 adjusts the color temperature output from the task lighting device 20 so as to reduce the difference between the color temperature of the peripheral part and the color temperature of the work area in accordance with the light color of the peripheral part. Control. That is, when the peripheral color temperature includes the influence of external light or the like, the color temperature detected by the illumination state detection sensor 40b includes the color temperature including the influence of external light or the like. Even if it is a case, the control part 30 adjusts the task lighting apparatus 20 irrespective of the influence of external light. The control unit 30 may also control the ambient lighting device 10 together with the task lighting device 20.

  For example, the control unit 30 adjusts the color temperature of the task lighting device 20 so that the color temperature difference between the color temperature of the ambient lighting device 10 and the color temperature of the task lighting device 20 is the same color temperature of less than 2000K. To do. The color temperature of the ambient lighting device 10 may be adjusted automatically by the ambient lighting device 10, or a color temperature adjustment dial or a color temperature selection / adjustment button (not shown) provided on the ambient lighting device 10 may be adjusted by the user. May be manually adjusted by operating. As a result, the color temperatures of the work area and the peripheral portion can be set to substantially the same color temperature, and a space without a sense of incongruity can be obtained.

  Similarly, when the user changes the light colors of the task lighting device 20 and the ambient lighting device 10, the color temperatures of the task lighting device 20 and the ambient lighting device 10 may be similarly controlled according to the use situation. According to this configuration, the ambient lighting device 10 and the task lighting device 20 can be controlled according to the settings of the task lighting device 20 and the ambient lighting device 10 of the user, and a comfortable lighting environment can always be provided.

  Further, the control unit is not limited to the case where the user changes the light colors of the task lighting device 20 and the ambient lighting device 10, but also when the external light from the PC used by the user or the external light irradiated from the window changes. 30 may perform the control as described above.

  The illumination state detection sensor 40 is not limited to being installed in the vicinity of the ambient illumination device 10 or the task illumination device 20, but may be, for example, a work area below the task illumination device 20 or a wall surface disposed in the peripheral portion. It may be installed. According to this configuration, the illumination state detection sensor 40 can perform illumination control of the ambient illumination device 10 according to the illumination state of the user's work area. Moreover, the illumination state detection sensor 40 can detect the illumination state from both the ambient illumination device 10 and the task illumination device 20 by being installed on the wall surface. Therefore, the lighting control of the task lighting device 20 can be performed according to the lighting state of the surrounding environment.

  Further, the lighting state detection sensor 40 is not limited to one, and a plurality of lighting state detection sensors 40 may be installed. As described above, each of the ambient lighting device 10 and the task lighting device 20 may be installed. For example, the plurality of ambient lighting devices 10 may be installed. Or you may use in the task lighting apparatus 20 in common.

  Even when there is no illumination state detection sensor 40 that can detect the illumination environment, for example, it can be realized by controlling the ambient illumination device 10 and the task illumination device 20 with the same control program.

  As described above, according to the lighting system 1 according to the present embodiment, the color temperatures of the ambient lighting device 10 and the task lighting device 20 are adjusted, and the light colors of the ambient lighting device 10 and the task lighting device 20 are greatly different. A strong edge feeling can be reduced, and discomfort due to the user's uncomfortable feeling can be reduced. Therefore, the user's concentration degree can be increased and the intelligent productivity can be improved.

(Embodiment 2)
Next, a second embodiment will be described.

  The difference between the illumination system according to the present embodiment and the illumination system 1 according to the first embodiment is that an illumination state detection sensor is installed separately from various illumination devices.

  4-7 is schematic which shows the structure of the illumination systems 2, 3, 4, 5 which concern on this Embodiment.

  First, the position of the illumination state detection sensor for accurately detecting the illumination state of the work area will be described. In FIG. 4, the illumination system 2 in the case of installing the illumination state detection sensor 40c on the work desk 50 in order to detect the illumination state of a work area is shown. By installing the illumination state detection sensor 40c on the work area surface, it is possible to detect an appropriate color temperature on the work area surface even when external light enters from the window 60 or leakage light from the adjacent room enters. Is possible. Thereby, adjustment of the color temperature of a work area and a peripheral part can be performed accurately.

  Next, the installation position of the illumination state detection sensor for accurately detecting the color temperature of the peripheral portion will be described.

  In FIG. 5, the illumination system 3 in the case of installing the illumination state detection sensor 40d on the upper surface of the task illumination device 20 is shown. By installing the illumination state detection sensor 40d on the upper surface of the task illumination device 20, it is possible to detect the color temperature of the peripheral portion that hardly includes the influence of external light from the task illumination device 20.

  FIG. 6 shows the illumination system 4 when the illumination state detection sensor 40e is installed on the wall surface. By installing the illumination state detection sensor 40e on the wall surface, it is possible to detect the color temperature of the peripheral portion that hardly includes the influence of external light by the task lighting device 20 irradiated on the wall surface.

  FIG. 7 shows the illumination system 5 in the case where the illumination state detection sensor 40f is installed outside the irradiation range of the task illumination device 20 on the work area surface. By installing the illumination state detection sensor 40f outside the irradiation range of the task illumination device 20 on the work area surface, the color temperature of the peripheral portion that hardly includes the influence of external light by the task illumination device 20 on the work area surface can be obtained. Can be detected.

  As described above, by installing the illumination state detection sensor at the above-described position, it is possible to accurately detect the color temperature even when external light or leakage light from the adjacent room is incident. Therefore, according to the illumination systems 2, 3, 4, and 5 according to the present embodiment, the color temperature of the work area and the peripheral part can be adjusted with high accuracy.

  The arrangement position of the illumination state detection sensor is not limited to the above-described arrangement positions, and may be other positions, or a plurality of the above-described positions may be combined. A more accurate color temperature can be detected by combining a plurality of arrangement positions of the illumination state detection sensors.

(Embodiment 3)
Next, Embodiment 3 will be described.

  The illumination system according to the present embodiment is different from the illumination system 1 according to the first embodiment in that the illumination system is operated by an external device such as a PC used by the user, and the external device and the illumination system are connected by communication means. It is a point which performs transmission / reception and performs illumination control.

  8 to 11 are schematic views showing the configuration of the illumination system according to the present embodiment.

  In the illumination system 6 shown in FIG. 8, the PC 70 used by the user is arranged on the work area surface, and the control unit 80 performs illumination control in consideration of display information of the PC 70.

  As shown in FIG. 8, in the illumination system 6, an illumination state detection sensor 40 a that detects the illumination state of the work area is provided below the task illumination device 20. Further, the PC 70 used by the user is arranged in a work area on the work desk 50. Therefore, the color temperature detected by the illumination state detection sensor 40a includes the influence of external light output from the display of the PC 70. Therefore, the color temperature of the work area and the peripheral part can be adjusted with high accuracy by performing the control in consideration of the influence of the external light.

  Here, in the illumination system 6 shown in FIG. 8, the PC 70 and the control unit 80 communicate with each other using an appropriate method. Communication means between the PC 70 and the control unit 80 will be described below.

  FIG. 9 shows the illumination system 7 using Wi-Fi (registered trademark) or visible light communication. For example, in FIG. 9, in each lighting system 7, the control unit 90 and each lighting device (the ambient lighting device 10 and the task lighting device 20) communicate with each other by visible light.

  Moreover, the control part 90 in each lighting system 7 can connect with the data center 100 by Wi-Fi, respectively, and can perform transmission / reception of data. Here, the data transmitted / received between the control unit 90 and the data center includes, for example, the work area and the color temperature of the peripheral part detected by the illumination state detection sensor 40, the ambient lighting device 10 for changing to the optimal lighting environment, and The color temperature of the task lighting device 20 is transmitted and received.

  According to this configuration, each control value (color temperature value) can be collected in the data center 100.

  FIG. 10 shows an illumination system 8 that enables communication connection only between devices using Bluetooth (registered trademark) or infrared communication.

  For example, a case where the user changes the lighting state of the ambient lighting device 10 from the PC 70 will be described. As shown in FIG. 10, the lighting state changed by the user is transmitted from the PC 70 to the control unit 110 by infrared communication, for example. The controller 110 controls the ambient lighting device 10 by infrared communication so as to change the color temperature of the ambient lighting device 10. Here, when the color temperature detected by the illumination state detection sensor 40 a changes due to the change in the color temperature of the ambient lighting device 10, the control unit 110 performs task lighting according to the usage status of the ambient lighting device 10 by the user. The apparatus 20 is controlled.

  Similarly, when the user changes the lighting state of the task lighting device 20 from the PC 70, the lighting state changed by the user is transmitted from the PC 70 to the control unit 110 by infrared communication, for example. The control unit 110 controls the task lighting device 20 by infrared communication so as to change the color temperature of the task lighting device 20. Here, when the color temperature detected by the illumination state detection sensor 40b (not shown) changes due to the change in the color temperature of the task lighting device 20, the control unit 110 changes the usage status of the task lighting device 20 to the user. Accordingly, the ambient lighting device 10 is controlled. By adding the usage status of the PC 70, the accuracy of color temperature detection in the user's work area can be increased.

  Thus, since communication is performed only between devices, the ambient lighting device 10 and the task lighting device 20 can be easily controlled. Therefore, it is possible to easily realize a space in which the color temperature of the peripheral portion and the work area are substantially equal, and the lighting environment does not feel strange.

  FIG. 11 shows an illumination system 9 that transmits a signal to the control unit using a mobile terminal such as a smartphone or a tablet as an external device.

  In the lighting system 9 illustrated in FIG. 11, the user can change the color temperature of the ambient lighting device 10 or the task lighting device 20 using the smartphone 130.

  For example, when the user changes the color temperature of the ambient lighting device 10, the lighting state changed by the user is transmitted from the smartphone 130 to the control unit 120, for example. The control unit 120 controls the ambient lighting device 10 so as to change the color temperature of the ambient lighting device 10. Here, when the color temperature detected by the illumination state detection sensor 40 a is changed due to the change in the color temperature of the ambient lighting device 10, the control unit 120 performs task lighting according to the usage status of the ambient lighting device 10 by the user. The apparatus 20 is controlled.

  Note that the same applies when the user changes the color temperature of the task lighting device 20, and thus the description thereof is omitted.

  According to this configuration, since a dedicated remote controller or the like is unnecessary, the lighting environment can be controlled more easily for the user.

  As described above, according to the lighting system according to the present embodiment, the lighting system is operated by an external device such as a PC used by the user, and the external device and the lighting system perform transmission / reception through communication means to perform lighting control. The lighting environment can be easily controlled. In addition, the lighting environment can be controlled more accurately by performing control in consideration of external light output from the PC display in the control unit. In addition, a space free from an uncomfortable feeling in the lighting environment can be easily realized by communication only between devices or communication between each lighting system and the data center.

  The above-described embodiment is an example, and the present invention is not limited to the above-described embodiment.

  For example, in the above-described embodiment, the adjustment of the color temperature of the ambient lighting device 10 may be automatically adjusted by the ambient lighting device 10, or the color temperature adjustment dial or the color temperature selection provided in the ambient lighting device 10. Manual adjustment may be performed by a user operating an adjustment button (not shown).

  In the lighting system described above, the color temperature of the work area (task lighting device 20) may be changed in accordance with the change of the color temperature of the peripheral portion (ambient lighting device 10), or the work area (task lighting device 20). The color temperature of the peripheral portion (ambient lighting device 10) may be changed in accordance with the change of the color temperature.

  The adjustment of the color temperature of the ambient lighting device 10 or the task lighting device 20 may be controlled by a preset program.

  Moreover, the illumination state detection sensor 40 may be installed in each of the ambient illumination device 10 or the task illumination device 20, or may be installed in common.

  As mentioned above, although the illumination system of this invention was demonstrated based on embodiment, this invention is not limited to this embodiment. Unless it deviates from the main point of this invention, the form obtained by combining this embodiment with various modifications conceived by those skilled in the art and combinations obtained in different embodiments are also included in the scope of the present invention.

1, 2, 3, 4, 5, 6, 7, 8, 9 Lighting system 10 Ambient lighting device 20 Task lighting device 30, 80, 90, 110, 120 Control unit 32 Communication means 40, 40a, 40b, 40c, 40d , 40e, 40f Illumination state detection sensor 50 Work desk 60 Window 70 PC
100 Data center 130 Smartphone

Claims (9)

It has a lighting environment in which a work area centered on the work object and a peripheral part of the work area exist,
An ambient lighting device that illuminates a space including the work area and the peripheral portion;
A task lighting device that is installed below the ambient lighting device and illuminates the work area;
A sensor for detecting at least one of an illumination state of a space including the work area and the peripheral portion and an illumination state of the work area;
A controller that controls the ambient lighting device and the task lighting device;
The ambient lighting device, the task lighting device, the sensor, and the control unit each have a communication means,
The controller is
Based on the information on the lighting state detected by the sensor received via the communication means, the ambient lighting device and the task lighting device are controlled for lighting ,
When the color temperature of the peripheral area is different from the color temperature of the work area by 2000K or more, the ambient lighting device and the task are set so that the difference between the color temperature of the work area and the color temperature of the peripheral area is less than 2000K. An illumination system that controls at least one of illumination devices to change at least one of the color temperature of the peripheral portion and the color temperature of the work area . The controller is
The lighting system according to claim 1, wherein a color temperature of at least one of the task lighting device and the ambient lighting device is adjusted. The sensor illumination system as claimed in claim 1 or 2 for detecting the color temperature of the lighting condition. The sensor is installed above or around the task lighting device,
The lighting system according to any one of claims 1 to 3 , wherein the control unit performs lighting control of the task lighting device based on a lighting state detected by the sensor. The sensor is installed below the task lighting device or in the work area,
The illumination system according to any one of claims 1 to 3 , wherein the control unit performs illumination control of the ambient illumination device based on an illumination state detected by the sensor. According to the usage status of the user of the task lighting device, the lighting system according to any one of claims 1 to 3 5 for controlling the ambient lighting device. The lighting system according to any one of claims 1 to 4 , wherein the task lighting device is controlled according to a use situation of the ambient lighting device by a user. The lighting system according to any one of claims 1 to 7 , wherein the control unit performs lighting control of at least one of the ambient lighting device and the task lighting device according to a user's PC usage state. Wherein, in response to a user it is transmitted using a mobile terminal using signals, claim 1-8 for performing at least one of the lighting control of the ambient illumination system and the task lighting device The illumination system according to item 1.

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