JP2021108469A - projector - Google Patents

Abstract

To provide a projector capable of easy performing interlocking control with lighting equipment and a control system including the same.SOLUTION: A projector 10a is a projector that projects images, includes a signal input unit to which an illumination control signal output from an illumination controller and used for controlling is input. The control system 100 includes: the projector; an illumination controller 14 that controls to input illumination control signals to the projector; and multiple pieces of lighting equipment 12a, 12b, 12c controlled by the illumination controller.SELECTED DRAWING: Figure 1

Description

The present invention relates to a projector and a control system including the projector.

As an example of a projector that projects an image, Patent Document 1 discloses a projector having an input unit and a projection control unit. The input unit receives the infrared signal transmitted from the remote controller and outputs operation data indicating the operation on the remote controller. The projection control unit projects an image based on the operation data input from the input unit.

Japanese Unexamined Patent Publication No. 2017-173574

By the way, it is desirable that the projector installed at the same time as the lighting equipment is installed by using the same construction method as the lighting equipment. Further, in order to use a plurality of projectors at the same time or to use the projectors in conjunction with the surrounding lighting fixtures, it is desirable to use the projectors as if they were lighting fixtures. In order to solve such problems in terms of construction and operation, there is room for study on the control method of the projector.

For example, a projector as disclosed in Patent Document 1 may be used together with a luminaire and may be controlled in conjunction with the luminaire. Conventionally, when controlling the projector in conjunction with the lighting equipment, it is necessary to intervene middleware, etc., and it is not easy to control the projector in conjunction with the lighting equipment. Further, even if the projector and the luminaire can be interlocked and controlled by using the controller for controlling the projector, it is difficult for the user who has only the knowledge of the luminaire to operate the projector.

Therefore, an object of the present invention is to provide a projector that can be easily interlocked with a lighting fixture and a control system including the projector.

In order to achieve the above object, one aspect of the projector according to the present invention is a projector that projects an image, and is a signal input unit to which a lighting control signal output from a lighting controller and used for controlling a lighting fixture is input. To be equipped.

Further, in order to achieve the above object, one aspect of the control system according to the present invention includes the above projector, a lighting controller for inputting the lighting control signal to the projector, and a lighting fixture controlled by the lighting controller. To be equipped.

According to the present invention, it is possible to obtain a projector that can be easily interlocked with a lighting fixture and a control system including the projector.

It is a figure which shows the control system which concerns on embodiment. It is a figure which shows the projector of the control system of FIG. 1, (a) is a plan view, and (b) is a side view. FIG. 2 is a cross-sectional view taken along the line III-III of FIG. 2, where FIG. 2A shows before the first signal line is inserted, and FIG. 2B shows after the first signal line is inserted. It is a figure which shows the state which connected the 1st signal line to a projector and the lighting controller, and connected the 2nd signal line to a projector and another projector in the control system of FIG. It is a block diagram which shows the functional structure of the control system of FIG. It is a flow chart which shows an example of the operation of the control part of the projector in the control system of FIG. It is a figure which shows an example of a lighting control signal, (a) is a figure which shows an example of a PWM (Pulse Width Modulation) signal, (b) is a figure which shows an example of a PFM (Pulse Fluorescence Modulation) signal. .. It is a figure which shows an example of the control of the projection of an image by the control part of the projector in the control system of FIG.

Hereinafter, embodiments of the present invention will be described. It should be noted that all of the embodiments described below show a preferred specific example of the present invention. Therefore, the numerical values, the components, the arrangement positions and connection forms of the components, the steps and the order of the steps, etc., which are shown in the following embodiments, are examples and are not intended to limit the present invention.

Further, each figure is a schematic view and is not necessarily exactly illustrated. In each figure, substantially the same configuration is designated by the same reference numerals, and duplicate description will be omitted or simplified.

In the following description, the X-axis, the Y-axis, and the Z-axis represent the three axes of the three-dimensional Cartesian coordinate system, the Z-axis direction is the vertical direction, and the direction perpendicular to the Z-axis (parallel to the XY plane). Direction) is the horizontal direction. The X-axis and the Y-axis are orthogonal to each other and are both orthogonal to the Z-axis.

(Embodiment)
Hereinafter, the control system 100 according to the embodiment will be described.

FIG. 1 is a diagram showing a control system 100 according to an embodiment. As shown in FIG. 1, the control system 100 includes a plurality of projectors 10a and 10b (two in this embodiment) and a plurality of lighting fixtures 12a, 12b and 12c (three in this embodiment). , The lighting controller 14. The control system 100 controls a plurality of projectors 10a and 10b and a plurality of lighting fixtures 12a, 12b and 12c by using a lighting control signal output from the lighting controller 14 and generally used for controlling the lighting fixtures. It is a system. Hereinafter, each configuration will be described.

First, a plurality of projectors 10a and 10b will be described. Each of the projector 10a and the projector 10b is a projector that projects an image, and is an embedded type (in other words, a downlight type) projector that is embedded in the ceiling 2 of the space 1. The projector 10a and the projector 10b are arranged so as to be adjacent to each other. Space 1 is, for example, a closed space such as a room. The images projected by the projector 10a and the projector 10b are, for example, monochrome images (in other words, grayscale images) that imitate natural objects such as shadows of trees (sunbeams). Such an image is used, for example, for the production of space 1. The image here includes a still image and a moving image.

2A and 2B are views showing the projector 10a of the control system 100 of FIG. 1, where FIG. 2A is a plan view and FIG. 2B is a side view. In FIG. 2A, the ceiling 2 is not shown in order to avoid complicating the drawings. Further, in FIG. 2B, the ceiling 2 is shown in cross section. As shown in FIG. 2, the projector 10a includes an outer housing 16, a collar portion 18, and a signal terminal block 20.

The outer housing 16 is inserted through a through hole 3 that penetrates the ceiling 2 in the vertical direction. The through hole 3 is circular when viewed from the vertical direction. The outer housing 16 is integrally formed with the collar portion 18, and is fixed to the ceiling 2 by metal fittings (not shown) or the like. The outer housing 16 projects vertically upward (plus side in the Z-axis direction) from the ceiling surface (lower surface) 4 of the ceiling 2 and is embedded in the ceiling 2. The ceiling surface 4 of the ceiling 2 is a surface extending in the horizontal direction. The outer housing 16 extends along the vertical direction and has a substantially cylindrical shape. The outer housing 16 has an upper surface 22 and an outer surface 24. The upper surface 22 is a plane parallel to the horizontal direction and a plane orthogonal to the vertical direction. The upper surface 22 is substantially circular when viewed from the vertical direction. The outer side surface 24 is a surface extending in the vertical direction and intersecting the horizontal direction. The outer side surface 24 extends vertically downward (minus side in the Z-axis direction) from the outer peripheral portion of the upper surface 22. The outer side surface 24 is substantially annular when viewed from the vertical direction. The outer housing 16 houses a video element 58 (described later) and the like inside. A detailed description of the image element 58 and the like will be described later.

The collar portion 18 projects outward from the lower end portion of the outer housing 16 and has a collar shape, and is substantially circular when viewed from the vertical direction. The collar portion 18 is fixed so as to be in contact with the ceiling surface 4 of the ceiling 2 from below.

The signal terminal block 20 is a portion to which a lighting control signal output from the lighting controller 14 and used for controlling a lighting fixture is input, and also outputs a lighting control signal input to the signal terminal block 20 to the outside of the projector 10a. It is a part to do. In this embodiment, the signal terminal block 20 corresponds to a signal input unit and a signal output unit.

The signal terminal block 20 has a positive side signal line insertion hole 29, a positive side terminal 30, a negative side signal line insertion hole 31, and a negative side terminal 32. The positive side signal line insertion hole 29, the positive side terminal 30, the negative side signal line insertion hole 31, and the negative side terminal 32 are used to input the lighting control signal output from the lighting controller 14 to the signal terminal block 20. Used.

The positive side signal line insertion hole 29 is open in the horizontal direction (plus side in the Y-axis direction), and the signal line can be inserted from the horizontal direction (plus side in the Y-axis direction). FIG. 3 is a cross-sectional view taken along the line III-III of FIG. As shown in FIG. 3A, the positive side terminal 30 is arranged in the positive side signal line insertion hole 29, and is a first signal for inputting the lighting control signal output from the lighting controller 14. It is a quick connection terminal to which the wire 40 (described later) is connected. The positive terminal 30 is made of a metal material or the like and has conductivity. As shown in FIG. 3B, the positive side signal line 44 of the first signal line 40 is a conductive core wire 44a such as a copper wire and an insulating coating member such as a resin that covers the core wire 44a. When the positive side signal line 44 is inserted into the positive side signal line insertion hole 29, the positive side terminal 30 presses the positive side signal line 44 (core wire 44a) with the positive side terminal 30. The positive side signal line 44 is electrically connected, and the positive side signal line 44 is fixed to the signal terminal block 20.

As shown in FIG. 2, the minus side signal line insertion hole 31 is arranged below the plus side signal line insertion hole 29 in the vertical direction. The negative side signal line insertion hole 31 is open in the horizontal direction (plus side in the Y-axis direction), and the signal line can be inserted from the horizontal direction (plus side in the Y-axis direction). The minus side terminal 32 is a quick connection terminal to which the first signal line 40 for inputting the lighting control signal output from the lighting controller 14 is connected, and is arranged in the minus side signal line insertion hole 31. .. Since the minus side terminal 32 has the same structure as the plus side terminal 30, a detailed description of the minus side terminal 32 will be omitted by referring to the above description of the plus side terminal 30. Since the negative side signal line 46 (described later) of the first signal line 40 has the same structure as the positive side signal line 44, a detailed description of the negative side signal line 46 will be omitted, but the negative side signal line 46 will be omitted. When 46 is inserted into the minus side signal line insertion hole 31, the minus side terminal 32 presses the minus side signal line 46 (core wire), and the minus side terminal 32 and the minus side signal line 46 are electrically connected. The negative side signal line 46 is fixed to the signal terminal block 20.

The positive terminal 30 and the negative terminal 32 do not have to be quick-connect terminals. In this embodiment, the positive terminal 30 and the negative terminal 32 correspond to the first terminal.

Further, the signal terminal block 20 further includes a plus side signal line insertion hole 35, a plus side terminal 36, a minus side signal line insertion hole 37, and a minus side terminal 38. The positive side signal line insertion hole 35, the positive side terminal 36, the negative side signal line insertion hole 37, and the negative side terminal 38 output the illumination control signal input to the signal terminal block 20 to the outside of the projector 10a. Used for. The positive side terminal 36 and the negative side terminal 38 are electrically connected to the positive side terminal 30 and the negative side terminal 32, and the illumination control signal input to the signal terminal block 20 is the positive side terminal 36 and the negative side terminal. It is output to the outside via 38.

The positive side signal line insertion hole 35 is arranged side by side with the positive side signal line insertion hole 29 in the horizontal direction (X-axis direction). Further, the positive side signal line insertion hole 35 is opened in the horizontal direction (plus side in the Y-axis direction), and the signal line can be inserted from the horizontal direction (plus side in the Y-axis direction). The positive side terminal 36 is a quick connection terminal to which a second signal line 42 (described later) for outputting the illumination control signal input to the signal terminal block 20 to the outside of the projector 10a is connected, and is a positive side signal line difference. It is arranged in the insertion hole 35. Since the positive terminal 36 has the same structure as the positive terminal 30, the detailed description of the positive terminal 36 will be omitted by referring to the above description of the positive terminal 30. Since the positive side signal line 48 (described later) of the second signal line 42 has the same structure as the positive side signal line 44 of the first signal line 40, detailed description of the positive side signal line 48 will be omitted. However, when the positive side signal line 48 is inserted into the positive side signal line insertion hole 35, the positive side terminal 36 presses the positive side signal line 48 (core wire), and the positive side terminal 36 and the positive side signal line 48 become connected. It is electrically connected and the positive side signal line 48 is fixed to the signal terminal block 20.

The negative side signal line insertion hole 37 is arranged side by side with the negative side signal line insertion hole 31 in the horizontal direction (X-axis direction). Further, the minus side signal line insertion hole 37 is arranged below the plus side signal line insertion hole 35 in the vertical direction. The negative side signal line insertion hole 37 is open in the horizontal direction (plus side in the Y-axis direction), and the signal line can be inserted from the horizontal direction (plus side in the Y-axis direction). The negative side terminal 38 is a quick connection terminal to which the second signal line 42 for outputting the lighting control signal input to the signal terminal block 20 to the outside of the projector 10a is connected, and the negative side signal line insertion hole 37. It is located inside. Since the negative terminal 38 has the same structure as the positive terminal 30, a detailed description of the negative terminal 38 will be omitted by referring to the above description of the positive terminal 30. Since the negative side signal line 50 (described later) of the second signal line 42 has the same structure as the positive side signal line 44 of the first signal line 40, detailed description of the negative side signal line 50 will be omitted. However, when the minus side signal line 50 is inserted into the minus side signal line insertion hole 37, the minus side terminal 38 presses the minus side signal line 50 (core wire), and the minus side terminal 38 and the minus side signal line 50 are connected. It is electrically connected and the negative side signal line 50 is fixed to the signal terminal block 20.

The positive terminal 36 and the negative terminal 38 do not have to be quick-connect terminals. In this embodiment, the positive terminal 36 and the negative terminal 38 correspond to the second terminal.

As described above, the part where the lighting control signal is input (signal input unit) and the part for outputting the lighting control signal to the outside of the projector 10a (signal output unit) have a structure in which a signal line is inserted. And have similar structures to each other.

Since the projector 10b has the same configuration as the projector 10a, the detailed description of the projector 10b will be omitted by referring to the above description of the projector 10a.

FIG. 4 is a diagram showing a state in which the first signal line 40 is connected to the projector 10a and the lighting controller 14 and the second signal line 42 is connected to the projector 10a and another projector 10b in the control system 100 of FIG. .. As shown in FIG. 4, the first signal line 40 is connected to the projector 10a and the lighting controller 14. The first signal line 40 is a signal line for inputting the lighting control signal output from the lighting controller 14 to the projector 10a, and has a positive side signal line 44 and a negative side signal line 46. The positive signal line 44 electrically connected to the positive terminal of the lighting controller 14 is inserted into the positive signal line insertion hole 29 of the projector 10a and electrically connected to the positive terminal 30 (see FIG. 2). Has been done. Further, the negative side signal line 46 electrically connected to the negative side terminal of the lighting controller 14 is inserted into the negative side signal line insertion hole 31 of the projector 10a and electrically connected to the negative side terminal 32 (see FIG. 2). It is connected to the. As a result, the lighting control signal output from the lighting controller 14 is input to the projector 10a.

The second signal line 42 is connected to the projector 10a and another projector 10b. The second signal line 42 is a signal line for outputting the lighting control signal input from the lighting controller 14 to the signal terminal block 20 to the outside of the projector 10a, and includes the plus side signal line 48 and the minus side signal line 50. Has. The positive signal line 48, which is inserted into the positive signal line insertion hole 35 of the projector 10a and electrically connected to the positive terminal 36 (see FIG. 2), is inserted into the positive signal line insertion hole 29 of the projector 10b. It is plugged in and electrically connected to the positive terminal 30 (see FIG. 2). Further, the negative side signal line 50, which is inserted into the negative side signal line insertion hole 37 of the projector 10a and electrically connected to the negative side terminal 38 (see FIG. 2), is the negative side signal line insertion hole of the projector 10b. It is inserted into 31 and electrically connected to the negative terminal 32 (see FIG. 2). As a result, the lighting control signal input from the lighting controller 14 to the projector 10a is output to the outside of the projector 10a and input to the other projector 10b.

Next, a plurality of lighting fixtures 12a, 12b, 12c will be described. As shown in FIG. 1, each of the plurality of luminaires 12a, 12b, and 12c is a luminaire that illuminates the space 1, and is fixed to the ceiling 2 of the space 1. Specifically, the plurality of lighting fixtures 12a, 12b, and 12c are embedded type (in other words, downlight type) lighting fixtures embedded in the ceiling 2 of the space 1, respectively. The plurality of lighting fixtures 12a, 12b, and 12c are arranged so as to be adjacent to each other. The specific modes of the lighting fixtures 12a, 12b, and 12c are not particularly limited. For example, the luminaires 12a, 12b, 12c may be ceiling lights, downlights, pendant lights, spotlights, bracket lights, and the like.

Next, the lighting controller 14 will be described. As shown in FIG. 1, the lighting controller 14 is a controller for controlling a plurality of projectors 10a and 10b and a plurality of lighting fixtures 12a, 12b and 12c, and is installed on the wall of the space 1. The lighting controller 14 does not have to be installed on the wall of the space 1, and may be arranged in a place where the user can operate it. The lighting controller 14 has a touch panel (not shown), a hardware button (not shown), or the like, and accepts a user's operation by the touch panel, the hardware button, or the like. The lighting controller 14 outputs a lighting control signal according to the user's operation.

FIG. 5 is a block diagram showing a functional configuration of the control system 100 of FIG. The functional configuration of the control system 100 will be described with reference to FIG.

As shown in FIG. 5, the projector 10a further includes a power supply unit 52, a light source driving unit 54, a light source 56, an image element 58, a projection lens 60, a control unit 62, and a storage unit 64. The power supply unit 52, the light source driving unit 54, the light source 56, the image element 58, the projection lens 60, the control unit 62, and the storage unit 64 are housed inside the outer housing 16.

The power supply unit 52 is a power conversion circuit that converts AC power supplied from an AC power source external to the projector 10a into DC power.

The light source driving unit 54 is a circuit for adjusting the brightness of the light source 56 using the electric power supplied from the power supply unit 52. The light source driving unit 54 operates based on the control signal output from the control unit 62.

The light source 56 is a light source that emits white light. The light source 56 is specifically realized by a light emitting diode (LED), but may be realized by a semiconductor laser, an organic EL (Electro Luminescence), an inorganic EL, or the like.

The image element 58 emits as an image by modulating the light emitted by the light source 56. Specifically, the image element 58 is a light-transmitting image element such as a transmissive liquid crystal panel, but may be a reflective image element such as a micromirror array or a reflective liquid crystal panel.

The projection lens 60 is an optical element that projects an image emitted by the image element 58 onto a projection surface such as a floor surface.

The control unit 62 is a control device that controls the light source 56 (more specifically, the light source driving unit 54) and the image element 58. For example, the control unit 62 controls the light source 56 (more specifically, the light source drive unit 54) and the image element 58 based on the illumination control signal input to the signal terminal block 20, and projects an image. Take control. Specifically, the control unit 62 controls the projection of the image by selecting the projected image, turning the projection on / off, changing the brightness of the projected image, changing the contrast of the projected image, and projecting the image. At least one of changing the color temperature of the image, changing the zoom magnification of the projected image, changing the focus position of the projected image, and scheduling operation is performed. Here, the lighting control signal is a signal generally used for controlling a lighting fixture. For example, the lighting control signal is a signal standardized for controlling a luminaire, such as a dimming signal used for dimming the luminaire or a toning signal used for toning the luminaire. Specifically, the lighting control signal is a PWM signal, a PFM signal, or the like used for dimming or the like of a lighting fixture. Further, here, the lighting fixture is a lighting fixture that does not have a video element and is fixed to a ceiling or the like to illuminate a room or the like, such as the lighting fixture 12a (12b, 12c). .. In the control system 100, one lighting control signal output from the lighting controller 14 is input to the projector 10a, and another lighting control signal output from the lighting controller 14 is input to the lighting fixtures 12a (12b, 12c). , The projector 10a and the lighting fixture 12a (12b, 12c) can be operated in conjunction with each other. The control unit 62 controls the projection of the image by controlling not only the light source 56 but also the image element 58 based on the illumination control signal as described above. The dimming includes turning on and off the light source. The dimming also includes changing the brightness of the light source while the light source is lit. The control unit 62 operates by the electric power supplied from the power supply unit 52. The control unit 62 is specifically realized by a microcomputer, but may be realized by a processor or a dedicated circuit.

The storage unit 64 stores image information of each of a plurality of types of images (in other words, a plurality of contents) projected by the projector 10a. Further, the storage unit 64 also stores a control program of the projector 10a executed by the control unit 62 and the like. Specifically, the storage unit 64 is realized by a semiconductor memory or the like.

Since the projector 10b has the same configuration as the projector 10a, the detailed description of the projector 10b will be omitted by referring to the above description of the projector 10a. As described above, the signal terminal block 20 of the projector 10b and the signal terminal block 20 of the projector 10a are electrically connected via the second signal line 42, and the illumination control signal input to the projector 10a is , Is input to the projector 10b via the second signal line 42.

The lighting controller 14 is electrically connected to the signal terminal block 20 of the projector 10a and a plurality of lighting fixtures 12a, 12b, 12c. The lighting controller 14 outputs a lighting control signal according to the operation of the user, and the lighting control signal is input to the projector 10a and the plurality of lighting fixtures 12a, 12b, 12c. For example, when the user performs a dimming operation of a plurality of lighting fixtures 12a, 12b, 12c using the lighting controller 14, the lighting controller 14 outputs a lighting control signal (dimming signal) corresponding to the dimming operation. Then, the lighting control signal is input to the projector 10a and the plurality of lighting fixtures 12a, 12b, 12c. Further, for example, when the user performs a color matching operation on a plurality of lighting fixtures 12a, 12b, 12c using the lighting controller 14, the lighting controller 14 performs a lighting control signal (color matching signal) corresponding to the color matching operation. Is output, and the lighting control signal is input to the projector 10a and the plurality of lighting fixtures 12a, 12b, 12c.

The luminaire 12a has a light source 66 and a control unit 68. The lighting fixture 12a does not have an image element that functions like the image element 58 of the projector 10a.

The light source 66 is a light source that emits white light. The light source 66 is specifically realized by a light emitting diode (LED), but may be realized by a semiconductor laser, an organic EL, an inorganic EL, or the like.

The control unit 68 controls the light source 66 based on the lighting control signal output from the lighting controller 14. The control unit 68 is specifically realized by a microcomputer, but may be realized by a processor or a dedicated circuit.

Since the luminaire 12b and the luminaire 12c have the same configuration as the luminaire 12a, the detailed description of the luminaire 12b and the luminaire 12c will be omitted by referring to the above description of the luminaire 12a.

Next, the operation of the control system 100 as described above will be described. FIG. 6 is a flow chart showing an example of the operation of the control unit 62 of the projector 10a in the control system 100 of FIG. 7A and 7B are diagrams showing an example of a lighting control signal, FIG. 7A is a diagram showing an example of a PWM signal, and FIG. 7B is a diagram showing an example of a PFM signal. FIG. 8 is a diagram showing an example of control of image projection performed by the control unit 62. An example of the operation of the control unit 62 of the projector 10a will be described with reference to FIGS. 6 to 8.

As shown in FIG. 6, when the user operates the lighting controller 14, the lighting control signal from the lighting controller 14 is input to the projector 10a (signal terminal block 20), and the control unit 62 acquires the lighting control signal. (S1 in FIG. 6).

The control unit 62 controls the projection of the image based on the acquired illumination control signal (S2 in FIG. 6). For example, a case where the lighting control signal is a dimming signal generally used for dimming a lighting fixture and the dimming signal is a PWM signal will be described. As shown in FIG. 7A, the PWM signal has a constant voltage-on cycle (see T in FIG. 7A), and the voltage-on time is not constant (FIG. 7). 7 (see τ1 and τ2 in (a)) signal. The duty ratio of the PWM signal is calculated by (time when the voltage is turned on) / (period when the voltage is turned on). The frequency of the PWM signal is, for example, 1 kHz, and the value of the voltage of the PWM signal is, for example, 12 V. When the dimming signal is a PWM signal, the control unit 62 controls the projection of an image as shown in FIG. 8 based on, for example, the duty ratio of the PWM signal.

Specifically, the control unit 62 turns the projection on and off based on the duty ratio of the PWM signal. For example, in the state where the image is not projected on the projection surface (the state where the projection is turned off), the control unit 62 turns on the projection of the image if the duty ratio of the acquired PWM signal is larger than a predetermined value. , Project the image on the projection plane. Further, in the state where the image is projected on the projection surface (the state where the projection is turned on), the control unit 62 turns off the projection of the image if the duty ratio of the acquired PWM signal is smaller than a predetermined value. , Do not project the image on the projection surface.

Further, the control unit 62 selects the projected image based on the duty ratio of the PWM signal. For example, the duty ratio of the PWM signal is associated with the image information stored in the storage unit 64, and the control unit 62 selects the image information corresponding to the duty ratio of the acquired PWM signal to display the projection surface. Select the image to be projected on.

Further, the control unit 62 changes the brightness of the projected image based on the duty ratio of the PWM signal. For example, the control unit 62 brightens the brightness of the image projected on the projection surface as the duty ratio of the acquired PWM signal is larger, and is projected onto the projection surface as the duty ratio of the acquired PWM signal is smaller. Dimmes the brightness of the existing image.

Further, the control unit 62 changes the contrast of the projected image based on the duty ratio of the PWM signal. For example, the control unit 62 increases the contrast of the image projected on the projection surface as the duty ratio of the acquired PWM signal increases, and projects on the projection surface as the duty ratio of the acquired PWM signal decreases. Reduce the contrast of the image.

Further, the control unit 62 changes the color temperature of the projected image based on the duty ratio of the PWM signal. For example, the control unit 62 raises the color temperature of the image projected on the projection surface as the duty ratio of the acquired PWM signal is larger, and is projected onto the projection surface as the duty ratio of the acquired PWM signal is smaller. Lower the color temperature of the image you are using.

Further, the control unit 62 changes the zoom magnification of the projected image based on the duty ratio of the PWM signal. For example, the control unit 62 increases the zoom magnification of the image projected on the projection surface as the duty ratio of the acquired PWM signal increases, and the control unit 62 projects the image projected on the projection surface as the duty ratio of the acquired PWM signal decreases. Decrease the zoom factor of the existing image. When the zoom magnification is increased, the image projected on the projection surface is enlarged, and when the zoom magnification is decreased, the image projected on the projection surface is reduced.

Further, the control unit 62 changes the focus position of the projected image based on the duty ratio of the PWM signal. For example, the control unit 62 changes the focus position to the long distance side as the duty ratio of the acquired PWM signal increases, and changes the focus position to the short distance side as the duty ratio of the acquired PWM signal decreases. For example, when the image projected on the projection surface is out of focus, the image projected on the projection surface can be focused by changing the focus position of the projected image.

Further, the control unit 62 performs scheduled operation based on the duty ratio of the PWM signal. For example, the control unit 62 projects an image so that the image projected on the projection surface changes according to the time of day as a scheduled operation. Further, for example, the control unit 62 projects an image so that the image projected on the projection surface changes according to the day of the week as a scheduled operation. Further, for example, the control unit 62 projects an image so that the image projected on the projection surface changes according to the season as a scheduled operation. In this case, the data for performing each scheduled operation is stored in the storage unit 64, and each data is associated with the duty ratio of the PWM signal. Then, the control unit 62 selects data corresponding to the duty ratio of the acquired PWM signal, and performs scheduled operation using the data. For example, the data includes a plurality of image information and the like, and the control unit 62 projects the plurality of images on the projection surface in order according to the time and the like based on the plurality of image information.

As described above, the control unit 62 not only adjusts the dimming of the projector 10a but also controls other than the dimming of the projector 10a by using the dimming signal generally used for dimming the lighting equipment.

The case where the dimming signal is a PWM signal has been described above, but for example, the dimming signal may be a pulse signal such as a PFM signal. As shown in FIG. 7 (b), the PFM signal does not have a constant voltage-on cycle (see T1 and T2 in FIG. 7 (b)), but has a constant voltage-on time. (See τ in FIG. 7B). When the dimming signal is a PFM signal, the control unit 62 determines that the image as described above is based on a value calculated by, for example, (time during which the voltage is turned on) / (period during which the voltage is turned on). The projection may be controlled.

Further, the lighting control signal may be a toning signal generally used for toning the lighting equipment. For example, when the toning signal is a PWM signal, the control unit 62 may control the projection of the image as described above based on the duty ratio of the PWM signal. Further, for example, the control unit 62 may control the projection of the image as described above according to the color temperature indicated by the toning signal. Specifically, if the color temperature indicated by the acquired toning signal is higher than the predetermined color temperature, the control unit 62 turns on the projection of the image, and the color temperature indicated by the acquired toning signal is the predetermined color temperature. If it is lower than, the image projection may be turned off. Further, the color temperature indicated by the toning signal is associated with the image information, and the control unit 62 may select an image according to the color temperature indicated by the acquired toning signal. Further, the control unit 62 increases the brightness of the image projected on the projection surface, increases the contrast, increases the color temperature, or increases the zoom magnification as the color temperature indicated by the acquired toning signal increases. It may be increased. Further, the control unit 62 darkens the brightness of the image projected on the projection surface, lowers the contrast, lowers the color temperature, or increases the zoom magnification as the color temperature indicated by the acquired toning signal becomes lower. It may be made smaller. Further, the control unit 62 changes the focus position to the long distance side as the color temperature indicated by the acquired toning signal is higher, and the focus position is moved to the short distance side as the color temperature indicated by the acquired toning signal is lower. You may change it. Further, the control unit 62 may perform the scheduled operation as described above according to the color temperature indicated by the acquired toning signal.

As described above, the control unit 62 not only adjusts the color of the projector 10a but also controls other than the color adjustment of the projector 10a by using the color adjustment signal generally used for the color adjustment of the lighting equipment.

Further, the lighting control signal may be a signal compliant with a communication standard such as DALI (registered trademark) (Digital Adpressable Lighting Interface) or DMX (Degital Multiplex).

The projector 10b performs the same operation as the projector 10a based on, for example, the illumination control signal from the projector 10a.

The projector 10a as described above is a projector that projects an image, and includes a signal input unit (signal terminal block 20) to which a lighting control signal output from the lighting controller 14 and used for controlling a lighting fixture is input.

According to this, since the lighting control signal output from the lighting controller 14 and used for controlling the lighting fixture can be input to the projector 10a, the projector 10a and the lighting fixtures 12a, 12b, 12c can be used by using the lighting control signal. Interlocking control can be easily performed.

Further, the projector 10a as described above further includes a control unit 62 that controls the projection of an image based on the illumination control signal input to the signal input unit (signal terminal block 20).

According to this, since the control unit 62 controls the projection of the image based on the lighting control signal input to the signal terminal block 20, the projector 10a and the lighting fixtures 12a and 12b are used by the lighting control signal. , 12c can be linked and controlled more easily.

Further, in the projector 10a as described above, the control unit 62 controls the projection of the image by selecting the projected image, turning the projection on / off, changing the brightness of the projected image, and controlling the contrast of the projected image. Change, change the color temperature of the projected image, change the zoom magnification of the projected image, change the focus position of the projected image, and perform at least one of scheduled operations.

According to this, for example, it is possible to turn on / off the projection of the image by the projector 10a in accordance with the on / off of the lighting fixtures 12a, 12b, 12c. As described above, the projection of the image by the projector 10a can be easily controlled according to the operation of the lighting fixtures 12a, 12b, 12c, and the interlocking control with the lighting fixtures 12a, 12b, 12c can be further easily performed.

Further, the projector 10a as described above further includes a storage unit 64 for storing image information of the projected image.

According to this, since the image information of the projected image is stored in the storage unit 64, it is possible to easily select the projected image and the like, and the interlocking control with the lighting fixtures 12a, 12b, 12c can be performed. It's even easier.

Further, in the projector 10a as described above, the illumination control signal is a dimming signal used for dimming the lighting fixture or a toning signal used for toning the lighting fixture.

According to this, since the projection of the image by the projector 10a can be controlled based on the dimming signal used for dimming the lighting fixture or the toning signal used for the toning of the lighting fixture, the projector 10a and the lighting fixture 12a, 12b and 12c can be easily interlocked and controlled.

Further, in the projector 10a as described above, the illumination control signal is a dimming signal, and the dimming signal is a PWM signal.

According to this, since the projection of the image by the projector 10a can be controlled based on the PWM signal used for controlling the lighting equipment, the projector 10a and the lighting equipment 12a, 12b, 12c can be easily interlocked and controlled.

Further, in the projector 10a as described above, the control unit 62 controls the projection of the image based on the duty ratio of the PWM signal.

According to this, since the projection of the image by the projector 10a can be controlled based on the duty ratio of the PWM signal also used for controlling the lighting equipment, the projector 10a and the lighting equipment 12a, 12b, 12c can be easily interlocked and controlled. ..

Further, in the projector 10a as described above, the signal input unit (signal terminal block 20) is connected to the positive terminal 30 and the negative side to which the first signal line 40 for inputting the illumination control signal from the illumination controller 14 is connected. It has a terminal 32.

According to this, the first signal line 40 for inputting the lighting control signal from the lighting controller 14 can be connected to the projector 10a, and the lighting control signal from the lighting controller 14 can be easily input to the projector 10a.

Further, the projector 10a as described above further includes a signal output unit (signal terminal block 20) for outputting the illumination control signal input to the signal input unit (signal terminal block 20) to the outside of the projector 10a.

According to this, the illumination control signal input to the projector 10a can be transmitted to another projector 10b. Therefore, the other projector 10b and the lighting fixtures 12a, 12b, 12c can be easily interlocked and controlled.

Further, in the projector 10 as described above, the signal output unit (signal terminal block 20) is a second signal for outputting the illumination control signal input to the signal input unit (signal terminal block 20) to the outside of the projector 10a. It has a positive terminal 36 and a negative terminal 38 to which the wire 42 is connected.

According to this, the second signal line 42 for outputting the illumination control signal input to the signal input unit (signal terminal block 20) to the outside can be connected to the projector 10a, and can be connected to the signal input unit (signal terminal block 20). The input lighting control signal can be easily output to the outside.

Further, the control system 100 as described above includes the above-mentioned projector 10a, a lighting controller 14 for inputting a lighting control signal to the projector 10a, and lighting fixtures 12a, 12b, 12c controlled by the lighting controller 14.

According to this, the projector 10a and the lighting fixtures 12a, 12b, 12c can be easily interlocked and controlled by using the lighting controller 14.

(Other embodiments, etc.)
Although the projector and the like according to the present invention have been described above based on the embodiments, the present invention is not limited to these embodiments.

In the above-described embodiment, the case where the control system 100 includes two projectors 10a and 10b and three lighting fixtures 12a, 12b and 12c has been described, but the present invention is not limited thereto. For example, the control system may include one projector or three or more projectors. Further, the control system may include one or two luminaires, or may include four or more luminaires.

In the above-described embodiment, the case where the projectors 10a and 10b are embedded projectors has been described, but the present invention is not limited to this. For example, the projector may be a projector that is used by being placed on a table or the like.

In the above-described embodiment, the case where the signal terminal block 20 is arranged on the outer surface 24 of the outer housing 16 has been described, but the present invention is not limited to this. For example, the signal terminal block may be arranged on the upper surface 22 of the outer housing 16.

In the above-described embodiment, the case where the first signal line 40 is connected to the signal input unit (signal terminal block 20) has been described, but the present invention is not limited to this. For example, the first signal line may not be connected to the signal input unit, and the lighting control signal may be wirelessly input to the signal input unit.

In the above-described embodiment, the case where the second signal line 42 is connected to the signal output unit (signal terminal block 20) has been described, but the present invention is not limited to this. For example, the second signal line may not be connected to the signal output unit, and the lighting control signal may be wirelessly output from the signal output unit to the outside.

In addition, it is realized by arbitrarily combining the components and functions in each embodiment within the range obtained by applying various modifications that can be conceived by those skilled in the art to each of the above embodiments and the gist of the present invention. Also included in the present invention.

10a, 10b Projector 12a, 12b, 12c Lighting equipment 14 Lighting controller 20 Signal terminal block 30, 36 Positive side terminal 32, 38 Negative side terminal 40 1st signal line 42 2nd signal line 62 Control unit 64 Storage unit 100 Control system

Claims (10)

A projector that projects an image
A signal input unit for inputting a lighting control signal output from a lighting controller and used for controlling a lighting fixture is provided.
projector. A control unit that controls the projection of an image based on the illumination control signal input to the signal input unit is further provided.
The projector according to claim 1. As the control, the control unit selects a projected image, turns projection on / off, changes the brightness of the projected image, changes the contrast of the projected image, changes the color temperature of the projected image, and projects. Change the zoom factor of the image to be projected, change the focus position of the projected image, and perform at least one of the scheduled operations.
The projector according to claim 2. A storage unit for storing image information of the projected image is further provided.
The projector according to claim 3. The lighting control signal is a dimming signal used for dimming the luminaire or a toning signal used for toning the luminaire.
The projector according to any one of claims 2 to 4. The illumination control signal is the dimming signal and
The dimming signal is a PWM (Pulse Width Modulation) signal.
The projector according to claim 5. The control unit performs the control based on the duty ratio of the PWM signal.
The projector according to claim 6. The signal input unit has a first terminal to which a first signal line for inputting the lighting control signal from the lighting controller is connected.
The projector according to any one of claims 1 to 7. A signal output unit for outputting the lighting control signal input to the signal input unit to the outside of the projector is further provided.
The projector according to any one of claims 1 to 8. The signal output unit has a second terminal to which a second signal line for outputting the lighting control signal input to the signal input unit to the outside of the projector is connected.
The projector according to claim 9.

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