Lighting fixtures
The lighting fixture with a light source unit and control unit enhances controllability and adaptability by allowing off-channel assignments, addressing the limitations of channel flexibility in existing systems.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- TOSHIBA LIGHTING & TECHNOLOGY CORP
- Filing Date
- 2022-11-10
- Publication Date
- 2026-07-29
AI Technical Summary
Existing lighting fixtures lack flexibility in controlling the operation of light source units, particularly in situations where the number of channels is limited, affecting their adaptability and controllability.
A lighting fixture with a light source unit and a lighting control unit that allows for assigning a predetermined number of channels, setting adjustment items, and adjusting parameters based on channel signals, with the option to designate off-channels that are not affected by signal changes, enabling flexible control and increased adaptability.
Improves the controllability and adaptability of lighting fixtures by allowing for off-channel assignments, enabling control of multiple fixtures with limited channels and enhancing the ability to respond to varying usage scenarios.
Smart Images
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Abstract
Description
Technical Field
[0001] Embodiments of the present invention relate to lighting fixtures.
Background Art
[0002] Lighting fixtures equipped with a light source unit having a light-emitting element such as an LED (Light emitting diode) are used, for example, in stages and studios. In such lighting fixtures, the operation of the light source unit is controlled in response to an operation input on an operating device such as a dimming console. For example, in response to an operation input on the operating device, the light emitted from the light source unit is dimmed and color-adjusted. In addition, as such lighting fixtures, there are lighting fixtures in which a plurality of types of light-emitting elements that emit light of different light colors are mounted on the light source unit. In such lighting fixtures, in response to an operation input on an operating device, the output ratio of a plurality of types of light-emitting elements, that is, the color mixing ratio of the light colors of the plurality of types of light-emitting elements is adjusted, and the light emitted from the light source unit is color-adjusted.
[0003] In stages and studios, a plurality of the above-described lighting fixtures are used, and a lighting system is configured from a plurality of lighting fixtures and one or more operating devices. In such a lighting system, a predetermined number of channels are assigned to control the operation of the light source unit and the like in each lighting fixture. Then, in each lighting fixture, a channel signal based on an operation input on the operating device is received from the assigned channel, and the operation of the light source unit is controlled based on the signal value of the channel signal from the assigned channel.
[0004] In the lighting system composed of the lighting fixture and the operating device as described above, it is required to improve the controllability of the light source unit, such as flexibly controlling the operation of the light source unit in the lighting fixture in response to the situation where the lighting system is used (improving the adaptability of the control of the operation of the light source unit).
Prior Art Documents
Patent Documents
[0005] [Patent Document 1] Japanese Patent Publication No. 2020-9594 [Overview of the project] [Problems that the invention aims to solve]
[0006] The problem that this invention aims to solve is to provide a lighting fixture that can improve the controllability of the light source. [Means for solving the problem]
[0007] According to the embodiment, the lighting fixture comprises a light source unit and a lighting control unit. The light source unit comprises a plurality of types of light-emitting elements that emit light of different colors relative to each other. The lighting control unit can assign a predetermined number of channels to control the operation of at least the light source unit, and sets adjustment items related to the operation of the light source unit for each of the predetermined number of channels. The lighting control unit adjusts the parameters related to the set adjustment items in accordance with the signal values of the channel signals from each of the predetermined number of channels, and controls one or more of the predetermined number of channels. The signal value of the channel signal does not affect the operation. It can be set to off-channel. [Effects of the Invention]
[0008] According to the present invention, it is possible to provide a lighting fixture that can improve the controllability of the light source in relation to the circumstances under which it is used. [Brief explanation of the drawing]
[0009] [Figure 1] Figure 1 is a schematic block diagram showing an example of a lighting system according to an embodiment. [Figure 2] Figure 2 is a schematic diagram showing an example of the process of setting adjustment items for each channel assigned to control the operation of the light source unit in a predetermined mode of the lighting fixture according to the embodiment. [Figure 3]Figure 3 is a schematic diagram showing an example of a setting pattern for adjustment items set for a predetermined number of channels assigned to control the operation of a lighting fixture according to the embodiment. [Modes for carrying out the invention]
[0010] The luminaire (10A) of the embodiment comprises a light source unit (111) and a lighting control unit (112). The light source unit (111) comprises multiple types of light-emitting elements (E1 to Ek) that emit light of different colors relative to each other. The lighting control unit (112) can assign a predetermined number (Nb) of channels to control the operation of at least the light source unit (111), and sets adjustment items related to the operation of the light source unit (111) for each of the predetermined number (Nb) of channels. The lighting control unit (112) adjusts parameters related to the set adjustment items in accordance with the signal values of the channel signals from each of the predetermined number (Nb) of channels, and can set one or more of the predetermined number (Nb) of channels as off channels. Therefore, if one or more of the predetermined number (Nb) of channels assigned to control the operation of the luminaire (10A) are assigned as off channels, the channel signals from the off channels can be assigned to purposes other than controlling the operation of the luminaire (10A). This improves the adaptability of the control of the operation of the light source unit (111) in the lighting fixture (10A) to the conditions under which the lighting system (1) is used.
[0011] In the luminaire (10A) of this embodiment, the lighting control unit (112) sets an adjustment item for the off-channel that sets the dimming rate to 0% for all of the multiple types of light-emitting elements (E1 to Ek) of the light source unit (111), regardless of the signal value of the channel signal. This appropriately creates a state in which the operating state of the light source unit (111) does not change even if the signal value of the channel signal from the off-channel changes, and appropriately creates a state in which the signal value of the channel signal from the off-channel does not affect the operation of the light source unit (111) of the luminaire (10A).
[0012] In the luminaire (10A) of this embodiment, the luminaire control unit (112) makes it possible to assign an off-channel to a state in which the operation of another fixture is controlled by a channel signal from the off-channel. This makes it possible to increase the number of luminaires (10) whose operation can be controlled by a single operator (11), even if the number of channels that can be assigned to the operator (11) is limited.
[0013] In the luminaire (10A) of this embodiment, the lighting control unit (112) sets one of the adjustment items, including the off-channels indicated by the adjustment item data (116), as an adjustment item for a predetermined number (Nb) of channels. This allows users of the lighting system (1) to select and set appropriate adjustment items for each of the predetermined number (Nb) of channels in accordance with the circumstances under which the lighting system (1), including the luminaire (10A), is used.
[0014] The embodiments will be described below with reference to the drawings and other figures.
[0015] Figure 1 shows an example of a lighting system 1 according to an embodiment. The lighting system 1 in the example of Figure 1 is used, for example, in a stage and a studio. In the example of Figure 1, the lighting system 1 comprises a plurality of lighting fixtures 10, including lighting fixtures 10A, and an operator 11. Each of the lighting fixtures 10 is, for example, a moving light, spotlight, cyclorama light, border light, floodlight, and downlight. In one example, the lighting system 1 comprises one or more battens, each batten supporting two or more lighting fixtures 10. The operator 11 is, for example, a dimmer control console. Although Figure 1 discloses a configuration in which the lighting system 1 comprises one operator 11, the lighting system 1 may comprise two or more operator 11s.
[0016] A communication line is connected to each of the lighting fixtures 10 including the lighting fixture 10A, and each of the lighting fixtures 10 communicates with an external device such as the operator 11 through the connected communication line. Each of the lighting fixtures 10 is connected with, for example, a DMX (Digital Multiplex) line, which is a communication line used in a communication standard specific to lighting-related devices, and an RDM (Remote Device Management) line, which is a communication standard that extends DMX. In this case, each of the lighting fixtures 10 communicates with the outside through the DMX line and receives a DMX signal as a signal from the outside. Note that the communication standard DMX is also referred to as DMX512.
[0017] The operator 11 communicates with the outside through the connected communication line or network. In one example, the aforementioned DMX line is connected to the operator 11. In this case, each of the lighting fixtures 10 receives the DMX signal transmitted from the operator 11 through the DMX line. Also, in this example, the operator 11 communicates with each of the lighting fixtures 10 through one or more splitters as intermediate devices. Then, the DMX signal from the operator 11 is distributed to a plurality of lighting fixtures 10 by the splitter.
[0018] Also, in another example, the operator 11 communicates with the outside through a network, for example, through any one of Ethernet (registered trademark), IP (Internet Protocol) network, and LAN (Local Area Network). In this case, the operator 11 communicates with each of the lighting fixtures 10 through one or more nodes as intermediate devices. Then, the signal transmitted from the operator 11 through the network is converted into a DMX signal by the node. Then, the DMX signal converted by the node is distributed to a plurality of lighting fixtures 10.
[0019] Note that intermediate devices such as splitters and nodes are mounted on, for example, a baton that supports the lighting fixture 10. Also, in one example, in the lighting system 1, a plurality of intermediate devices are provided, and one or more lighting fixtures 10 are connected to each of the plurality of intermediate devices via a communication line such as a DMX line. Then, the plurality of intermediate devices to which the lighting fixtures 10 are connected are cascade-connected via the communication line. Also, the lighting fixtures 10 may be cascade-connected via the communication line.
[0020] The operator 11, such as a dimming console, includes an operation input unit 101, a control unit 102, a storage unit 103, and a communication unit 105. The operator 11 is provided with a processor or an integrated circuit, and a storage medium such as a memory. The processor or the integrated circuit provided in the operator 11 includes any one of a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), and a DSP (Digital Signal Processor). The operator 11 may include only one integrated circuit or the like, or may include a plurality of integrated circuits or the like. Also, the operator 11 may include only one storage medium, or may include a plurality of storage mediums. In the operator 11, the processing of the control unit 102 is performed by the processor or the integrated circuit. Also, in the operator 11, the storage medium functions as the storage unit 103.
[0021] The communication unit 105 is composed of an interface provided in the operator 11, such as a port or a network interface. As described above, the communication unit 105 communicates with external devices including the lighting fixture 10. Also, the operator 11 may be provided with a notification unit. In this case, the notification unit is composed of a user interface. In the notification unit, information to be notified to the user of the lighting system 1 or the like is notified by display or the like. In one example, the notification unit includes any one of a display and a touch panel. Also, the notification unit may be provided separately from the operator 11.
[0022] Furthermore, in the control unit 11, the operation input section 101 is configured as a user interface. Various operations are input to the operation input section 101 of the control unit 11 by the user of the lighting system 1. For example, the operation input section 101 receives operation inputs related to the operation of the lighting fixture 10 that communicates with the control unit 11. In one example, the control unit 11 is a dimming control console, and the control unit 11 is provided with multiple faders as the operation input section 101. Operation inputs related to the operation of the lighting fixture 10 are then performed on each of the faders. In another example, multiple fader images (virtual faders) are displayed on a display screen provided on the control unit 11, or on a display screen of a terminal or computer separate from the control unit 11. Operation inputs related to the operation of the lighting fixture 10 are then performed using the multiple fader images.
[0023] The control unit 102 of the control unit 11 generates command signals related to the operation of the lighting fixtures 10 that communicate with the control unit 11, based on the operation input from the operation input unit 101. Then, in the lighting system 1, the communication unit 105 transmits the command signals generated by the control unit 102 to multiple lighting fixtures 10, including lighting fixture 10A. As a result, each of the lighting fixtures 10 receives a DMX signal or the like, which is a command signal from the control unit 11.
[0024] Each of the lighting fixtures 10 includes a light source unit 111, a lighting control unit 112, a storage unit 113, and a communication unit 115. In Figure 1, only one lighting fixture 10A is shown with the light source unit 111, lighting control unit 112, storage unit 113, and communication unit 115, but other lighting fixtures 10 are also provided with the same light source unit 111, lighting control unit 112, storage unit 113, and communication unit 115.
[0025] Each lighting fixture 10 is provided with a processor or integrated circuit and a storage medium such as memory. In each lighting fixture 10, similar to the control unit 11, the processor or integrated circuit includes one of the following: CPU, ASIC, FPGA, and DSP. Each lighting fixture 10 may have only one integrated circuit or multiple integrated circuits. Also, each lighting fixture 10 may have only one storage medium or multiple storage mediums. In each lighting fixture 10, the processing of the lighting control unit 112 is performed by the processor or integrated circuit. In addition, in each lighting fixture 10, the storage medium functions as a storage unit 113.
[0026] In each of the lighting fixtures 10, the communication unit 115 is composed of an interface such as a port, and the communication unit 115 communicates with external devices, including the operating unit 11, as described above. In one example, the lighting system 1 may also be provided with a setting device (not shown), such as a remote control, as a user interface for making various settings for each of the lighting fixtures 10. In another example, the lighting system 1 may also be provided with a user interface (e.g., buttons, touch panel, etc.) for making various settings for each of the lighting fixtures 10. In these cases, the setting device is used by the user of the lighting system 1 to input operations related to the settings of each of the lighting fixtures 10. In another example, one lighting fixture 10 can be switched between multiple modes. The setting device is used to input operations to switch between the modes of the lighting fixtures 10 that can be switched between multiple modes.
[0027] In each lighting fixture 10 that communicates with the operator 11, the communication unit 115 receives a DMX signal or the like, which is a command signal from the operator 11. Then, in each lighting fixture 10 that has received the command signal, the lighting control unit 112 controls the operation of the light source unit 111 based on the command content indicated in the received command signal. In this way, in each lighting fixture 10 that communicates with the operator 11, the operation of the lighting fixture 10, such as the operation of the light source unit 111, is controlled in accordance with the operation input unit 101 of the operator 11. For example, in each lighting fixture 10, the light emitted from the light source unit 111 is dimmed and color-adjusted in accordance with the operation input from the operator 11.
[0028] When the operation of multiple lighting fixtures 10 is controlled by command signals from the operator 11, the control unit 102 of the operator 11 assigns the Na channel (where Na is a natural number greater than or equal to 2) to the transmission of command signals from the operator 11. At this time, the control unit 102 of the operator 11 obtains the channel number, etc., for the Na channel assigned to the transmission of command signals. Each of the lighting fixtures 10 whose operation is controlled by the operator 11 receives a command signal from the operator 11, and a channel signal is input from each of the Na channels assigned to the transmission of command signals. The signal value of the channel signal from each of the Na channels assigned to the transmission of command signals corresponds to the value of the operation input unit 101 of the operator 11. In one example, the operator 11 is a dimming control console equipped with multiple faders, and the number of channels assigned to the transmission of command signals from the operator 11 is the same as the number of faders provided on the operator 11.
[0029] Furthermore, in each of the lighting fixtures 10 whose operation is controlled by command signals from the operator 11, the lighting control unit 112 assigns one or more channels in the Na channel to control the operation of the light source unit 111. At this time, in each of the lighting fixtures 10, the lighting control unit 112 acquires the channel number, etc., for the one or more channels assigned to control the operation of the light source unit 111. In each of the lighting fixtures 10, upon receiving a command signal from the operator 11, the lighting control unit 112 acquires the signal value of the channel signal input from each of the one or more channels assigned to control the operation of the light source unit 111. Then, in each of the lighting fixtures 10, the lighting control unit 112 controls the operation of the light source unit 111 based on the signal value of the channel signal input from the channels assigned to control the operation.
[0030] In DMX, a maximum of 512 channels can be used per DMX line. In one example, each lighting fixture 10 in the lighting system 1 communicates via a DMX line, and each lighting fixture 10 receives a DMX signal, which is a command signal from the operator 11, and receives a channel signal from each of the Na channels among the 512 channels. Then, one or more of the Na channels are assigned to control the operation of the light source unit 111 in each lighting fixture 10, and the lighting control unit 112 controls the operation of the light source unit 111 based on the signal values of the channel signals from each of the channels assigned to control the operation. In addition, in DMX communication, the signal value of the channel signal in each of the 512 channels is set to one of the values from 0 to 255.
[0031] Furthermore, the number of channels assigned to control the operation of the light source unit 111 in each of the lighting fixtures 10 varies according to the type of lighting fixture 10. In addition, in lighting fixtures 10 that can switch between multiple modes, the number of channels assigned to control the operation of the light source unit 111 may vary according to the mode. The number of channels is also referred to as the footprint and occupied area, etc.
[0032] The configuration of the light source unit 111 of the lighting fixture 10A and the control of the operation of the light source unit 111 in the lighting fixture 10A will be described below. In the lighting system 1, the configuration of the light source unit 111 and the control of the operation of the light source unit 111 in lighting fixtures 10 other than lighting fixture 10A may be the same as or different from lighting fixture 10A.
[0033] As shown in Figure 1, the luminaire 10A has a light source unit 111 equipped with multiple types of light-emitting elements E1 to Ek (where k is a natural number of 2 or more). The multiple types of light-emitting elements E1 to Ek emit light of different colors relative to each other. In the luminaire 10A, the light emitted from the light source unit 111 is color-tuned by adjusting the output ratio from the multiple types of light-emitting elements E1 to Ek, that is, the color mixing ratio of the light colors of the light-emitting elements E1 to Ek, in accordance with the command signal from the operator 11. In one example, the multiple types of light-emitting elements E1 to Ek include red, green, blue, and white light-emitting elements. The white light-emitting element is, for example, a light-emitting element that emits white light with a color temperature of 3000K. In another example, in addition to the four types of light-emitting elements mentioned above, cyan and amber light-emitting elements are also provided as multiple types of light-emitting elements E1 to Ek.
[0034] Furthermore, the lighting fixture 10A has one or more modes, including a predetermined mode α0, and controls the operation of the light source unit 111 in each of the one or more modes. Also, if the lighting fixture 10A can switch between multiple modes, the number of channels allocated to controlling the operation of the light source unit 111 in the lighting fixture 10A may change according to the mode. In the lighting fixture 10A, the lighting control unit 112 sets adjustment items corresponding to the mode for each channel allocated to control the operation. The lighting control unit 112 then adjusts the parameters related to the adjustment items set for each channel in accordance with the signal values of the channel signals from each channel allocated to control the operation. By adjusting the parameters related to the set adjustment items, the lighting control unit 112 controls the operation of the light source unit 111 and adjusts the brightness and color of the light emitted from the light source unit 111.
[0035] The following describes the control of the operation of the light source unit 111 of the lighting fixture 10A in a predetermined mode, mode α0. In lighting fixture 10A, the lighting control unit 112 allocates a maximum of Nb channels (where Nb is a natural number less than or equal to Na) from among the Na channels allocated for transmitting command signals from the operator 11 to control the operation of the light source unit 111. That is, in mode α0 of lighting fixture 10A, a predetermined number of Nb channels can be allocated to control the operation of the light source unit 111 of lighting fixture 10A. Then, in lighting fixture 10A, the lighting control unit 112 controls the operation of the light source unit 111, etc., based on the signal values of the channel signals input from each of the allocated Nb channels in mode α0. In one example, the predetermined number Nb, which is the number of channels that can be allocated to control the operation of lighting fixture 10A in mode α0, is one of 4, 8, or 16.
[0036] The memory unit 113 of the lighting fixture 10A stores adjustment item data 116. The adjustment item data 116 indicates adjustment items related to the operation of the light source unit 111 of the lighting fixture 10A, and there are M adjustment items. In one example, the number of adjustment items M shown in the adjustment item data 116 is greater than the number of channels (a predetermined number Nb) that can be assigned to control the operation of the light source unit 111 in mode α0.
[0037] In mode α0, the user of the lighting system 1 selects an adjustment item from among the M adjustment items indicated in the adjustment item data 116 for each of the Nb channels assigned to control the operation of the lighting fixture 10A. At this time, the operation input for selecting the adjustment item to be set for each of the predetermined number of Nb channels is performed, for example, by a setting device (not shown), such as a remote control. Then, in mode α0, the lighting control unit 112 of the lighting fixture 10A sets one of the selected adjustment items from among the M adjustment items indicated in the adjustment item data 116 as the adjustment item for each of the Nb channels.
[0038] Figure 2 shows an example of the process of setting adjustment items for each channel assigned to control the operation of the light source unit 111 in mode α0, which is a predetermined mode of the lighting fixture 10A. In the example in Figure 2, the predetermined number Nb mentioned above is 8, and in mode α0, 8 channels are assigned to control the operation of the light source unit 111 of the lighting fixture 10A.
[0039] In another example shown in Figure 2, channel number Ch.6 is set as the first channel of the lighting fixture 10A, and eight channels from channel number Ch.6 to Ch.13 can be assigned to control the operation of the light source unit 111 of the lighting fixture 10A. In one example, the lighting control unit 112 of the lighting fixture 10A sets the first channel of the lighting fixture 10A based on operation input from a setting device such as a remote control. In yet another example, the lighting control unit 112 of the lighting fixture 10A obtains information about channels assigned to control the operation of fixtures other than the lighting fixture 10A by communicating with external devices, including the operator 11. Then, the lighting control unit 112 sets the first channel of the lighting fixture 10A based on the information obtained through communication with the external devices.
[0040] In the example shown in Figure 2, the lighting control unit 112 sets adjustment items for each of the eight channels, channel numbers Ch.6 to Ch.13, which are assigned to control the operation of the lighting fixture 10A. That is, each of the adjustment items β1 to β8 is set. Also in the example shown in Figure 2, the adjustment items for item M shown in the adjustment item data 116 include the j-item adjustment items "intensity of light color γ1", "intensity of light color γ2", ..., "intensity of light color γj-1", and "intensity of light color γj". Here, j is a natural number smaller than M. Light colors γ1 to γj are different from each other, and for light colors γ1 to γj, the mixing ratio of the light colors of the light-emitting elements E1 to Ek, which corresponds to the output ratio from multiple types of light-emitting elements E1 to Ek, is different from each other. The relationship between each of the light colors γ1 to γj and the output ratio from the light-emitting elements E1 to Ek is stored, for example, in the memory unit 113, and the lighting control unit 112 can obtain the output ratio corresponding to each of the light colors γ1 to γj.
[0041] Here, light color γa, one of the light colors γ1 to γj, is, for example, a light color obtained by mixing the light color of a red light-emitting element and the light color of a blue light-emitting element in a 1:1 mixing ratio. Light color γb, which is different from light color γa of light colors γ1 to γj, is, for example, the light color of light from a red light-emitting element. Furthermore, light color γc, which is different from light colors γa and γb of light colors γ1 to γj, is, for example, the light color of white light with a color temperature of 3000K. In one example, light colors γ1 to γj include four types of white with different color temperatures relative to each other (3000K, 4000K, 5000K, 6500K), and colors corresponding to (reproducing) the 19 polycolor light colors shown in the "Filter Correlation DMX Level Table" published by JATET (also called filter colors; colors corresponding to (reproducing) filter No. #140, #16, #22, #31, #40, #57, #59, #63, #64, #65, #71, #72, #77, #78, #84, #86, #87, #88). Note that "filter color" refers to each of the 19 polycolor light colors mentioned above. The aforementioned 23 light colors included in light colors γ1 to γj are preset, for example, during the manufacturing stage of lighting fixture 10A. Furthermore, in addition to the 23 types of light colors mentioned above, the light colors γ1 to γj may include one or more light colors registered by the user of the lighting system 1. In this case, j is an integer of 24 or more, and the lighting fixture 10A can emit both the pre-set light colors and the light colors registered by the user.
[0042] Here, let's assume that any one of the light colors γ1 to γj is designated as light color γm, and the lighting control unit 112 sets "intensity of light color γm" as an adjustment item for one channel that has an Nb channel. In this case, the lighting control unit 112 adjusts the brightness (intensity) of the light of light color γm in accordance with the signal value of the channel signal from the channel for which "intensity of light color γm" is set as an adjustment item. In other words, for light obtained by mixing the light colors of multiple types of light-emitting elements E1 to Ek at an output ratio corresponding to light color γm, dimming is performed in accordance with the signal value of the channel signal from the channel for which "intensity of light color γm" is set as an adjustment item.
[0043] Furthermore, the operation of the light source unit 111 is controlled based only on the channel signal from the channel set as the adjustment item for "intensity of light color γm," and channel signals from other channels are not used to control the operation of the light source unit 111. In this case, the lighting control unit 112 adjusts the brightness (intensity) of the light emitted from the light source unit 111 in accordance with the signal value of the channel signal from the channel set as the adjustment item for "intensity of light color γm," while maintaining the light color γm, that is, while maintaining the output ratio of each of the light-emitting elements E1 to Ek that constitute the light color γm. In other words, the light emission intensity of each of the light-emitting elements E1 to Ek is adjusted while maintaining the output ratio of each of the light-emitting elements E1 to Ek that constitute the light color γm.
[0044] Furthermore, in the example shown in Figure 2, the adjustment item for item M, indicated in the adjustment item data, includes "intensity." When "intensity" is set as an adjustment item for one of the Nb channels, the lighting control unit 112 adjusts the brightness (intensity) of the light emitted from the light source unit 111 in accordance with the signal value of the channel signal from the channel for which "intensity" is set as an adjustment item. As a result, the light emitted from the light source unit 111 is dimmed. Also, suppose that "intensity" is set as an adjustment item for one of the Nb channels, and "intensity of light color γm" is set as an adjustment item for another Nb channel. In this case, the lighting control unit 112 adjusts the brightness (intensity) of the light color γm in accordance with both the signal value of the channel signal from the channel for which "intensity of light color γm" is set as an adjustment item, and the signal value of the channel signal from the channel for which "intensity" is set as an adjustment item.
[0045] In the example shown in Figure 2, the light source unit 111 has a strobe function, and the adjustment item for item M, indicated in the adjustment item data, includes "strobe". When "strobe" is set as an adjustment item for one of the Nb channels, the lighting control unit 112 adjusts and controls the operation of the strobe function of the light source unit 111 in accordance with the signal value of the channel signal from the channel for which "strobe" is set as an adjustment item. For example, the lighting control unit 112 switches between a state where the strobe function is operating and a state where the strobe function is stopped in accordance with the signal value of the channel signal from the channel for which "strobe" is set as an adjustment item. Furthermore, if the strobe function can operate in multiple operating states, the lighting control unit 112 switches the operation of the strobe function between multiple operating states in accordance with the signal value of the channel signal from the channel for which "strobe" is set as an adjustment item. In one example, the strobe function can operate in four operating states: "normal strobe", "opening pulse", "closing pulse", and "random strobe".
[0046] In the example shown in Figure 2, among the eight channels assigned to control the operation of the light source unit 111 of the lighting fixture 10A, the following settings are made: Ch.6's adjustment item β1 is set to "intensity of light color γ1", Ch.7's adjustment item β2 is set to "intensity of light color γ2", Ch.8's adjustment item β3 is set to "intensity of light color γj-1", Ch.9's adjustment item β4 is set to "intensity of light color γ3", and Ch.10's adjustment item β5 is set to "strobe". Then, the lighting control unit 112 controls the operation of the light source unit 111 in accordance with the signal values of the channel signals from each of Ch.6 to Ch.10, as described above.
[0047] Furthermore, in this embodiment, as shown in the example in Figure 2, the adjustment items of item M shown in the adjustment item data include "0% dimming adjustment". "0% dimming adjustment" corresponds to an adjustment that sets the dimming rate to 0% for all of the multiple types of light-emitting elements E1 to Ek of the light source unit 111, regardless of the signal value of the channel signal. In other words, it is an adjustment that prevents the light source unit 111 from operating, regardless of the signal value of the channel signal. In mode α0 of the lighting fixture 10A, the lighting control unit 112 can set the adjustment item to "0% dimming adjustment" for one or more channels in the Nb channel assigned to control the operation of the light source unit 111. In one example, it is possible to set the adjustment item to "0% dimming adjustment" for multiple channels in the Nb channel.
[0048] Here, let's assume that the adjustment item is set to "0% dimming adjustment" for all Nb channels assigned to control the operation of the light source unit 111. In this case, regardless of the signal value of the channel signal from the assigned Nb channel, the state in which no light is emitted from the light source unit 111 of the lighting fixture 10A is maintained, and the dimming rate of the light emitted from the light source unit 111 is maintained at 0%. Furthermore, if "0% dimming adjustment" is set as the adjustment item for one or more Nb channels, the lighting control unit 112 will not change the operating state of the light source unit 111 even if the signal value of the channel signal from the channel for which "0% dimming adjustment" is set as the adjustment item changes. Therefore, in controlling the operation of the lighting fixture 10A, channels for which "0% dimming adjustment" is set as the adjustment item become off channels, where the signal value of the channel signal does not affect the operation of the lighting fixture 10A. The operation of the lighting fixture 10A here refers to, for example, the operation of the light source unit 111 of the lighting fixture 10A (such as lighting control operation), the operation of the fan of the lighting fixture 10A (such as ON / OFF operation and rotation speed change operation), and the illumination direction adjustment operation of the illumination direction adjustment mechanism of the lighting fixture 10A (referring to a mechanism that changes the direction of light emitted from the lighting fixture 10A in the horizontal or vertical direction using an electrical signal). These operations of the lighting fixture 10A may be controlled by the operator 11, similar to the operation of the light source unit 111.
[0049] In this embodiment, as described above, the adjustment item can be set to "0% dimming adjustment" for one or more of the assigned Nb channels. Therefore, the lighting control unit 112 can set one or more of a predetermined number of Nb channels to be off channels, where the signal value of the channel signal does not affect the operation of the light source unit 111 of the lighting fixture 10A.
[0050] In the example shown in Figure 2, among the eight channels assigned to control the operation of the light source unit 111 of the lighting fixture 10A, adjustment item β6 for Ch.11, adjustment item β7 for Ch.12, and adjustment item β8 for Ch.13 are set to "0% dimming rate adjustment". Therefore, with regard to the control of the operation of the lighting fixture 10A, each of Ch.11 to Ch.13 is set to an off-channel, where the signal value of the channel signal does not affect the operation of the light source unit 111. Consequently, in the example shown in Figure 2, even if the signal values of the channels from Ch.11 to Ch.13 change, the operating state of the light source unit 111 of the lighting fixture 10A does not change. In other words, the signal values of channels that are not set to off-channel take precedence over the signal values of channels that are set to off-channel.
[0051] Furthermore, in this embodiment, if one or more Nb channels assigned to control the operation of lighting fixture 10A are set to off channels, the channels set to off channels can be assigned to control the operation of a device other than lighting fixture 10A in the lighting system 1. Here, "another device" may be a lighting fixture of the same type as lighting fixture 10A, a lighting fixture of a different type than lighting fixture 10A, or a device that is not a lighting fixture (e.g., a batten, screen, projector, blower, etc.). For example, the lighting control unit 112 makes it possible to assign the channels set to off channels to control the operation of any light source unit 111 of lighting fixture 10 other than lighting fixture 10A. When an off channel is assigned to control the operation of a device other than lighting fixture 10A, the operation of that other device is controlled by the channel signal from the channel that is set to off channel in lighting fixture 10A. Then, in that other device, the operating state changes as the signal value of the channel signal from the channel that is set to off channel in lighting fixture 10A changes.
[0052] In the example shown in Figure 2, each of the channels Ch.11 to Ch.13, which are set to off-channel, can be assigned to control the operation of a device other than the lighting fixture 10A. In other words, each of the channels Ch.11 to Ch.13 can be assigned to a state where the operation of a device other than the lighting fixture 10A is controlled by the channel signal.
[0053] As described above, in this embodiment, a predetermined number of Nb channels can be assigned to control the operation of the light source unit 111 of the lighting fixture 10A in mode α0. The lighting control unit 112 of the lighting fixture 10A sets adjustment items related to the operation of the light source unit 111 for each of the predetermined number of Nb channels, and adjusts the parameters related to the set adjustment items in accordance with the signal values of the channel signals from each of the predetermined number of Nb channels. In mode α0, the lighting control unit 112 sets one of the adjustment items selected from the adjustment item data 116 as the adjustment item for each of the predetermined number of Nb channels. Therefore, users of the lighting system 1 can select and set appropriate adjustment items for each of the Nb channels in accordance with the situation in which the lighting system 1, including the lighting fixture 10A, is used. Consequently, the adaptability of the control of the operation of the light source unit 111 in the lighting fixture 10A to the situation in which the lighting system 1 is used is improved, and the controllability of the light source unit 111 is improved.
[0054] Furthermore, in mode α0, for each assigned Nb channel, one of the j items from "intensity of light color γ1" to "intensity of light color γj" can be set as an adjustment item. The lighting control unit 112 then adjusts the brightness (intensity) of the light color γm in accordance with the signal value of the channel signal from the channel for which "intensity of light color γm" is set as an adjustment item. As a result, users of the lighting system 1 can control the operation of the lighting fixture 10A, including dimming and color adjustment of the light from the lighting fixture 10A, using the light colors registered in the memory unit 113 as light colors that can be emitted from the light source unit 111 of the lighting fixture 10A. This eliminates the need for users of the lighting system 1 to create and set new light colors from the lighting fixture 10A, and allows for appropriate response to situations where there is a short period between renting a stage or studio where the lighting system 1 will be used and the actual performance.
[0055] Furthermore, in this embodiment, in mode α0 of the lighting fixture 10A, one or more channels of a predetermined number of Nb channels can be set to off-channels, where the signal value of the channel signal does not affect the operation of the lighting fixture 10A. Therefore, if one or more of the Nb channels allocated to controlling the operation of the lighting fixture 10A in mode α0 are assigned to off-channels, the channel signals from the channels set to off-channels can be allocated to purposes other than controlling the operation of the lighting fixture 10A. This improves the adaptability of the control of the operation of the light source unit 111 in the lighting fixture 10A to the situations in which the lighting system 1 is used, and improves the controllability of the light source unit 111.
[0056] Furthermore, in this embodiment, in mode α0 of the lighting fixture 10A, the lighting control unit 112 sets an adjustment item for the off-channel to set the dimming rate to 0% for all of the multiple types of light-emitting elements E1 to Ek of the light source unit 111, regardless of the signal value of the channel signal. This appropriately creates a state in which the operating state of the light source unit 111 does not change even if the signal value of the channel signal from the off-channel changes. In other words, it appropriately creates a state in which the signal value of the channel signal from the off-channel does not affect the operation of the light source unit 111 of the lighting fixture 10A.
[0057] Furthermore, in mode α0 of the lighting fixture 10A, the lighting control unit 112 can assign channels to control the operation of a different fixture from lighting fixture 10A by channel signals from channels that are set to off-channels for lighting fixture 10A. In other words, channels that are set to off-channels within the Nb channel assigned to control the operation of lighting fixture 10A can be assigned to control the operation of another lighting fixture. This makes it possible to increase the number of lighting fixtures 10 whose operation is controlled by the Na channel assigned to the transmission of command signals from the operator 11. Therefore, even if the number of channels that can be assigned to the operator 11 is limited, such as by limiting the number of faders provided on the operator 11, it is possible to increase the number of lighting fixtures 10 whose operation can be controlled by a single operator 11.
[0058] Furthermore, in this embodiment, in mode α0 of the lighting fixture 10A, for each Nb channel assigned to control the operation of the lighting fixture 10A, it is possible to select and set appropriate adjustment items from the adjustment items of the M item shown in the adjustment item data, corresponding to the situation in which the lighting fixture 10A is used. Therefore, with only one mode, mode α0, it is possible to handle various situations in which the lighting fixture 10A and the lighting system 1 are used. Consequently, the number of modes for the lighting fixture 10A can be reduced, and the effort required to select a mode to operate the lighting fixture 10A from among many modes is reduced.
[0059] Note that the adjustment items that can be set for the Nb channel assigned to control the operation of the lighting fixture 10A in mode α0 are not limited to the adjustment items mentioned above. Figure 3 shows an example of a setting pattern for adjustment items set for the Nb channel assigned to control the operation of the lighting fixture 10A. In Figure 3, an example is described in which the predetermined number Nb is 8 and 8 channels are assigned to control the operation of the lighting fixture 10A. Also in Figure 3, setting patterns ε1 to ε5 are shown as setting patterns for adjustment items for the 8 assigned channels.
[0060] In setting pattern ε1, adjustment items are set for the 8 assigned channels, similar to the example in Figure 2. Specifically, among the 8 channels, the adjustment item for one channel is set to "Intensity of Color γ1", the adjustment item for another channel is set to "Intensity of Color γ2", the adjustment item for another channel is set to "Intensity of Color γ3", the adjustment item for another channel is set to "Intensity of Color γj-1", the adjustment item for another channel is set to "Strobe", and the adjustment items for the remaining 3 channels are set to "0% Dimming Adjustment".
[0061] In one example, the adjustment items for item M shown in adjustment item data 116 include "hue" and "saturation". Then, in setting pattern ε2, among the 8 assigned channels, the adjustment item for one channel is set to "intensity", the adjustment item for another channel is set to "hue", the adjustment item for yet another channel is set to "saturation", and the adjustment items for the remaining 5 channels are set to "0% dimming adjustment". When the adjustment items for all 8 channels are set in setting pattern ε2, the lighting control unit 112 adjusts the hue of the light emitted from the light source unit 111 in accordance with the signal value of the channel signal from the channel set as the adjustment item for "hue". The lighting control unit 112 then adjusts the saturation of the light emitted from the light source unit 111 in accordance with the signal value of the channel signal from the channel set as the adjustment item for "saturation". Note that by adjusting the hue, the a of the CIE LAB color space * b * The position of the circle in the chromaticity diagram is adjusted, and by adjusting the saturation, the same a * b * The position of the circle in the chromaticity diagram is adjusted in the radial direction.
[0062] In one example, the adjustment item for item M shown in adjustment item data 116 includes "Dim to Warm". Then, in setting pattern ε3, one of the eight assigned channels is set to "Dim to Warm", and the remaining seven channels are set to "0% dimming adjustment". When the adjustment items for all eight channels are set to setting pattern ε3, the lighting control unit 112 simultaneously adjusts the brightness and color temperature of the light emitted from the light source unit 111, corresponding to the signal value of the channel signal from the channel set to "Dim to Warm". In this case, the lighting control unit 112 lowers the color temperature as the dimming rate decreases in accordance with the signal value of the channel signal.
[0063] In one example, the adjustment items for item M shown in adjustment item data 116 include "color temperature" and "white hue." Then, in setting pattern ε4, among the 8 assigned channels, the adjustment item for one channel is set to "intensity," the adjustment item for another channel is set to "color temperature," the adjustment item for yet another channel is set to "white hue," and the adjustment items for the remaining 5 channels are set to "0% dimming adjustment." When the adjustment items for all 8 channels are set in setting pattern ε4, the lighting control unit 112 adjusts the white color temperature of the light emitted from the light source unit 111, corresponding to the signal value of the channel signal from the channel set to "color temperature." Then, the lighting control unit 112 adjusts the hue of the light emitted from the light source unit 111, while maintaining the white color temperature, corresponding to the signal value of the channel signal from the channel set to "white hue." In this process, for example, adjustments are made to determine whether the hue is in the positive direction of the color deviation (duv) (towards the green side) or the negative direction of the color deviation (duv) (towards the magenta side), based on the blackbody locus in the xy chromaticity diagram.
[0064] In one example, the adjustment item for item M shown in adjustment item data 116 includes "cut / fade switching". In one of the setting patterns for adjustment items for the Nb channel assigned to control the operation of the lighting fixture 10A, "cut / fade switching" is set as the adjustment item for one channel, and "intensity" or "intensity of light color γj" is set as the adjustment item for another channel. In this case, as described above, the lighting control unit 112 adjusts the brightness (intensity) of the light emitted from the light source unit 111 in accordance with the signal value of the channel signal from the channel for which intensity is set as the adjustment item. When changing the brightness of the light emitted from the light source unit 111, the lighting control unit 112 switches the operation of changing the brightness between cut and fade in accordance with the signal value of the channel signal from the channel for which "cut / fade switching" is set as the adjustment item. In other words, the brightness of the light can be switched between abruptly changing (cut) or gradually changing (fade) depending on the signal value of the channel signal from the channel set as the adjustment item for "cut / fade switching". The fade operation may also be configured to allow adjustment of the time over which the brightness of the light changes, depending on the channel value.
[0065] In one example, the adjustment items for item M shown in adjustment item data 116 include "Filter Color Preset". In channels where "Filter Color Preset" is set, at least one of the pre-registered light colors corresponding to the filter color can be reproduced. Then, in setting pattern ε5, among the 8 assigned channels, the adjustment item for one channel is set to "Intensity", the adjustment item for another channel is set to "Filter Color Preset", and the adjustment items for the remaining 6 channels are set to "0% dimming adjustment". When the adjustment items for all 8 channels are set in setting pattern ε5, the lighting control unit 112 switches the light color of the light emitted from the light source unit 111 among 23 preset light colors, which were set during the manufacturing stage of the lighting fixture 10A, in accordance with the signal value of the channel signal from the channel where "Filter Color Preset" is set as the adjustment item. For example, the light colors that can be switched in accordance with the signal value of the channel signal from a channel set to the "Filter Color Preset" adjustment item are the four types of white light with different color temperatures relative to each other, as mentioned above, and the 19 types of polycolor light colors shown in the JATET filter correlation DMX level table, for a total of 23 types.
[0066] In one example, the adjustment items for item M shown in adjustment item data 116 include "User Color Preset". Channels where "User Color Preset" is set can reproduce light colors that have been previously registered by the user. In one of the setting patterns for adjustment items for the Nb channel assigned to control the operation of the lighting fixture 10A, "User Color Preset" is set as an adjustment item for a certain channel. In this case, the lighting control unit 112 switches the light color of the light emitted from the light source unit 111 between several types of light colors registered by the user of the lighting system 1, corresponding to the signal value of the channel signal from the channel where "User Color Preset" is set as an adjustment item.
[0067] In all of the examples described above, in mode α0 of the lighting fixture 10A, one or more of the predetermined number of Nb channels can be set to off-channels, where the signal value of the channel signal does not affect the operation of the light source unit 111. Therefore, in all of the examples, if one or more of the Nb channels allocated to controlling the operation of the lighting fixture 10A in mode α0 are assigned to off-channels, the channel signals from the channels set to off-channels can be assigned to purposes other than controlling the operation of the lighting fixture 10A. This improves the adaptability of the control of the light source unit 111 in the lighting fixture 10A to the situations in which the lighting system 1 is used, and improves the controllability of the light source unit 111.
[0068] Preferably, the lighting fixture 10A has two modes: one in which the user can freely set the adjustment items, as described above, and another in which the items are predetermined.
[0069] In the mode where adjustment items can be freely set, the predetermined number Nb, which is the upper limit of the number of channels that can be assigned to control the operation of the lighting fixture 10A, is, for example, one of 4, 8, or 16. For example, the lighting fixture 10A includes a mode in which 4 channels of adjustment items can be freely set, a mode in which 8 channels of adjustment items can be freely set, and a mode in which 16 channels of adjustment items can be freely set. Then, with at least one off-channel set for each channel, the adjustment items described above, as well as the adjustment items shown in Figures 2 and 3, are set. By configuring the lighting fixture 10A in this way, the user can flexibly set the channels according to the adjustment items and number of channels required. For this reason, in the control of the light source, there is no need to set unnecessary channels, and the controllability of the light source can be improved. For example, if the user wants to use only 3 channels for control, they select the mode in which 4 channels of adjustment items can be freely set and set one channel to an off-channel. By setting it in this way, it is possible to suppress malfunctions of the light source if the signal value of an unused channel is accidentally manipulated.
[0070] Furthermore, a mode with predetermined settings could be, for example, a mode using four channels, which includes channels for adjusting the intensity of the red LED, the green LED, the blue LED, and the white LED. Another example could be a mode using one channel, which adjusts whether or not to perform Dim to Warm operation. It is desirable that the lighting fixture 10A has one or more modes with predetermined settings. Users unfamiliar with operating the lighting fixture can operate the lighting fixture 10A without having to make detailed mode settings by selecting one of these modes with predetermined settings, thereby improving the controllability of the light source. In addition, by having two types of modes—a mode in which the user can freely set the adjustment items and a mode with predetermined settings—the user can choose the mode according to the operation they want to perform and their level of proficiency in operating the lighting fixture, thereby improving the controllability of the light source.
[0071] Furthermore, each channel may control not only the light source unit 111, but also, for example, a fan integrated with or separately from the lighting fixture 10A, or a mechanism for adjusting the irradiation direction of the lighting fixture 10A. In addition, in one mode (either a mode in which the user can freely set adjustment items, or a mode in which the items are predetermined), both adjustment items that control the operation of the light source unit 111 and adjustment items that control the operation of other components may be set.
[0072] According to at least one of these embodiments, the lighting control unit sets adjustment items related to the operation of the light source for each of a predetermined number of channels, and adjusts parameters related to the set adjustment items in accordance with the signal values of the channel signals from each of the predetermined number of channels. Furthermore, the lighting control unit can set one or more of the predetermined number of channels to be off channels. This makes it possible to provide a lighting fixture in which the controllability of the light source can be improved.
[0073] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. The following are additional notes. [1] A light source unit comprising multiple types of light-emitting elements that emit light of different colors relative to each other; A lighting control unit capable of assigning a predetermined number of channels to control the operation of at least the light source unit, and setting adjustment items related to the operation of the light source unit for each of the predetermined number of channels, the lighting control unit capable of adjusting parameters related to the set adjustment items in correspondence with the signal values of the channel signals from each of the predetermined number of channels, and setting one or more of the predetermined number of channels to off channels; A lighting fixture equipped with the following features. [2] The lighting fixture of [1], wherein the lighting control unit sets as the adjustment item an adjustment to set the dimming rate to 0% for all of the multiple types of light-emitting elements of the light source unit, regardless of the signal value of the channel signal, for the off channel. [3] The lighting control unit enables the off-channel to be assigned to a state in which the operation of another fixture is controlled by the channel signal from the off-channel, the lighting fixture of [1] or [2]. [4] The lighting control unit sets one selected from among the adjustment items, including the off channel indicated by the adjustment item data, as an adjustment item for the predetermined number of channels, according to the lighting fixture of [1] or [2]. [Explanation of Symbols]
[0074] 1...Lighting system, 10,(10A)...Lighting fixture, 11...Operator, 101...Operation input unit, 102...Control unit, 103...Storage unit, 105...Communication unit, 111...Light source unit, 112...Lighting control unit, 113...Storage unit, 115...Communication unit, 116...Adjustment item data, E1~Ek...Light-emitting element.
Claims
1. A light source unit comprising multiple types of light-emitting elements that emit light of different colors relative to each other; A lighting control unit capable of assigning a predetermined number of channels to control the operation of the light source unit, and setting adjustment items related to the operation of the light source unit for each of the predetermined number of channels, the lighting control unit capable of adjusting parameters related to the set adjustment items in correspondence with the signal values of the channel signals from each of the predetermined number of channels, and setting one or more of the predetermined number of channels to off-channels in which the signal values of the channel signals do not affect the operation; A lighting fixture equipped with the following features.
2. The lighting control unit sets an adjustment item to prevent the operation of the light source unit regardless of the signal value of the channel signal from the off-channel, thereby preventing the operating state of the light source unit from changing even if the signal value of the channel signal from the off-channel changes, as described in claim 1.
3. The lighting control unit enables the off-channel to be assigned to a state in which the operation of another fixture is controlled by the channel signal from the off-channel, according to claim 1 or 2.
4. The lighting control unit sets one selected from among the adjustment items, including the off channel indicated by the adjustment item data, as an adjustment item for a predetermined number of channels, in the lighting fixture according to claim 1 or 2.