JP6541515B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device.

  There has been proposed a technique of emitting light in a color or a light emission mode corresponding to the operation by operating the illumination device such as rocking. In the technology, for example, a 3-axis acceleration sensor is provided at the tip, and lighting of a plurality of LEDs is controlled based on acceleration data in the X-axis, Y-axis and Z-axis directions detected by this acceleration sensor.

  The specific control is to turn on the LED emitting blue light when the acceleration in the + direction in the X-axis direction is a certain value or more, and to control the green emission LED when the acceleration in the negative direction in the X-axis direction is a certain value or more. The LED emits red light when the acceleration in the + direction in the Y-axis direction is more than a certain value, and the LED emits orange light when the acceleration in the negative direction in the Y-axis direction is more than a predetermined value. The LED emitting blue light and the LED emitting green light are simultaneously turned on when the acceleration in the + direction in the Z-axis direction is a certain value or more, and the LED and orange in a red light when the acceleration in the-direction in the Z-axis direction is a certain value or more. At the same time, color-emitting LEDs are lighted (see Patent Document 1).

Japanese Patent Application Publication No. 2001-34780

  The technique proposed in Patent Document 1 is difficult to swing and use in a state where the lighting device is installed. Many lighting devices are installed and used on a wall or the like.

  Then, the objective of this invention is providing the illuminating device which can change a light emission state easily, even if it is the installed state.

In order to achieve the above object, the lighting device of the present invention includes a light emitting member and a light control member for adjusting the light emitting state of the light emitting member, and when the lighting device is rotated, light is emitted based on the rotating state. There rows first dimmer for varying the light emission state of the member, the light control member has a magnetic sensor member for detecting the magnetic field, performs a first dimmer When the magnetic sensor detects a magnetic field, the magnetic sensor element is a magnetic field the when not detected, when the swinging force is applied to the illumination device, and wherein the second dimmer rows Ukoto changing the light emission state of the light emitting member on the basis of the swinging force.

  Here, the light adjustment member may have a magnetic sensor member that detects a magnetic field, and may perform the first light adjustment when the magnetic sensor detects the magnetic field.

  Further, when the magnetic sensor member does not detect a magnetic field, the second light control may be performed to change the light emitting state of the light emitting member based on the rocking force when the rocking force is applied to the lighting device.

  According to the present invention, it is possible to provide a lighting device capable of easily changing the light emission state even in the installed state.

It is a perspective view of a lighting installation concerning an embodiment of the invention, and is a figure showing a state where a lighting installation is installed in an installation side. It is a top view of the illuminating device which concerns on embodiment of this invention, and is the figure which looked at the light-emitting plate side from which light is emitted. It is a block diagram of the main components which comprise the illuminating device which concerns on embodiment of this invention. It is a flowchart of the switching operation | movement of the 1st light control which concerns on embodiment of this invention, and a 2nd light control. It is a figure for demonstrating the 1st light control which concerns on embodiment of this invention. It is a figure which shows the relationship between rotation angle (alpha) (degree) at the time of rotating the illuminating device 1 by setting the horizontal Z-axis as a rotating shaft, and the acceleration (g) which the acceleration sensor 7 detects. It is a flowchart of the process which a microcomputer performs in the case of the 1st light control which concerns on embodiment of this invention. It is a figure for demonstrating the 2nd light control which concerns on embodiment of this invention. It is a figure which shows the example of the time-dependent change of the acceleration in the case of 2nd light control. It is a flowchart of the process which a microcomputer performs at the time of the 2nd light control which concerns on embodiment of this invention.

  Hereinafter, the configuration of the illumination apparatus, the operation of the first dimming and the operation of the second dimming, and the switching operation of the first dimming and the second dimming according to the embodiment of the present invention will be described with reference to the drawings. explain.

(Configuration of Lighting Device According to Embodiment of the Present Invention)
FIG. 1 is a perspective view of a lighting device according to an embodiment of the present invention, showing a state in which the lighting device is installed on the installation surface. FIG. 2 is a plan view of the lighting apparatus according to the embodiment of the present invention, as viewed from the side of the light emitting plate from which light is emitted.

  The illumination device 1 according to the embodiment of the present invention has a disk shape as a whole. The size of the lighting device 1 is a size that fits in the palm of an adult. The upper surface of the lighting device 1 is a circular light emitting plate 2 from which light is emitted. Since the light emitting plate 2 is made of a material for diffusing light, when the lighting device 1 is made to emit light in a state of being installed on the installation surface G shown in FIG. 1, the light also illuminates the installation surface G around the lighting device 1.

  Moreover, the switch 3 which turns on / off the light emission of the illuminating device 1 by pushing the illuminating device 1 is arrange | positioned at the cylindrical exterior wall part 4. The aforementioned light emitting plate 2 covers one opening of the exterior wall 4, and the other opening is covered by a circular plate-like bottom 5. An iron plate (not shown) is fixed to the bottom 5.

  A substrate (not shown) is fixed between the bottom 5 and the light emitting plate 2. On this board, LEDs 6, 6 (Light Emitting Diodes) as light emitting members, a three-axis acceleration sensor 7 (sensor member), a Hall sensor 8 and a microcomputer 9 are mounted. The microcomputer 9 has an acceleration detection unit 10, a magnetic field determination unit 11, and a light source control unit 12. Here, the acceleration sensor 7 and the microcomputer 9 are "light control members". The LEDs 6 and 6 are disposed on two lines along the light emitting surface 2 a passing through the center of the light emitting plate 2 and at the end of the light emitting plate 2. Further, the acceleration sensor 7 is disposed at a position where a Z axis, which will be described later, passes through in the lighting device 1.

  In addition, on this board, the LEDs 6, 6, the acceleration sensor 7, the hall sensor 8 (magnetic sensor member for detecting a magnetic field), a power supply unit (not shown) which is a component group necessary to supply power to the microcomputer 9 and the like Etc. are also implemented. The power supply is turned on / off by the switch 3 described above. In FIG. 2, a central axis (optical axis of the lighting device 1) Z in the emission direction of the light emitted from the light emitting surface 2a is shown. The central axis Z penetrates the center of the light emitting plate 2 perpendicularly to the light emitting surface 2 a of the light emitting plate 2.

  FIG. 3 is a block diagram of main components constituting the lighting device 1 according to the embodiment of the present invention. If the Hall sensor 8 does not detect the magnetic field detection signal, these constituent elements perform the second dimming, and if so, the Hall sensor 8 transmits the signal to the magnetic field determination unit 11 to perform the first dimming. . The acceleration sensor 7 transmits a detection signal corresponding to the detected acceleration to the acceleration detection unit 10. The acceleration detection unit 10 determines the magnitude of the acceleration and the time during which the acceleration is changing. The light source control unit 12 sets a current value to be supplied to the LEDs 6 and 6 in order to adjust the light emission state of the LEDs 6 and 6 corresponding to the received detection signal, and supplies a current to the LEDs 6 and 6. The adjustment of the light emission state is performed by pulse width modulation (PWM) control of the light source control unit 12.

(Switching operation between the first light control and the second light control)
The switching operation between the first light control and the second light control is performed by the magnetic field determination unit 11 and the light source control unit 12 based on a signal transmitted from the hall sensor 8. FIG. 4 is a flow chart of this operation. First, the power switch is turned on (S1). Then, it is determined whether there is a magnet around the lighting device 1 (S2). When the Hall sensor 8 detects the magnetic field of the magnet, it switches to the first light control (S3), and switches to the second light control (S4) if the magnetic field of the magnet is not detected.

  The switching operation of the first light control and the second light control will be described based on FIG. If the Hall sensor 8 does not detect the magnetic field detection signal, the lighting device 1 performs the second dimming. However, when the Hall sensor 8 detects a magnetic field detection signal, the Hall sensor 8 transmits the signal to the magnetic field determination unit 11. When the magnetic field determination unit 11 receives the magnetic field detection signal, the magnetic field determination unit 11 transmits the signal to the light source control unit 12. When the light source control unit 12 receives the magnetic field detection signal, the light source control unit 12 switches itself to the light adjustment condition for the first light adjustment, and also switches the signal to the acceleration detection unit 10 to the condition for performing the first light adjustment. Send. Upon receiving the signal, the acceleration detection unit 10 switches to the detection condition for the first light adjustment. And if Hall sensor 8 stops detecting a magnetic field detection signal, lighting installation 1 will return to the 2nd light control.

(Operation of 1st light control)
FIG. 5 is a diagram for explaining first light adjustment according to the embodiment of the present invention. When the rotational force D is applied to the lighting apparatus 1 with the substantially horizontal (direction perpendicular to the gravity direction) Z axis as the rotation axis, the light emission state of the LEDs 6 is changed based on the rotation state Is the first light control. Here, the rotational force D refers to both clockwise and counterclockwise rotational forces with the Z axis as the axis of rotation.

  The acceleration sensor 7 has an X axis which is an axis orthogonal to the Z axis and a Y axis which is an axis orthogonal to the Z axis and the X axis when the lighting apparatus 1 is rotated with the substantially horizontal Z axis as a rotation axis. Acceleration in the direction (X-axis direction and Y-axis direction) is detected at regular intervals. And according to the acceleration, the light emission amount (brightness) of LED6, 6 is adjusted in steps.

  FIG. 6 is a view showing the relationship between the rotation angle α (°) and the acceleration (g) detected by the acceleration sensor 7 when the lighting device 1 is rotated with the substantially horizontal Z axis as a rotation axis. That is, in the lighting device 1, the acceleration (g) detected by the acceleration sensor 7 changes continuously along with the rotation angle α (°). The rotation state of the lighting apparatus 1 is grasped from the detected acceleration (g), and the first dimming is performed. The acceleration (g) referred to here is an output when the direction of the axis used to detect the acceleration of the acceleration sensor 9 coincides with the direction of gravity as (±) 1, the acceleration sensor 9 according to the inclination. This is an acceleration output from 9.

  FIG. 7 is a flowchart of processing performed by the microcomputer 9 at the time of the first light adjustment according to the embodiment of the present invention. When the first light adjustment is started (S3), first, a period 100 ms in which no processing is performed is provided (S31). Thereafter, the acceleration detected by the acceleration sensor 7 is measured (S32). The measurement of the acceleration (S32) is performed 20 times at intervals of several ms. Thereafter, the rotation angle α (°) is calculated based on the relationship between the rotation angle α (°) and the acceleration (g) shown in FIG. 6 (S33).

  When the calculated rotation angle α (°) is 0 ° ≦ α <90 ° (S34), the light amount of the light emitted by the lighting device 1 is 0% (the maximum output of the LEDs 6, 6 is 100%) The amount of light emission of the LEDs 6, 6 is adjusted so as to obtain the same value (hereinafter the same) (S341). When the calculated rotation angle α (°) is 90 ° ≦ α <180 ° (S35), the light emission amount of the LEDs 6, 6 is set so that the light amount of the light emitted by the lighting device 1 is 50%. Adjust (S351). When the calculated rotation angle α (°) is 180 ° ≦ α <0 ° (= 360 °) (S36), the light amount of the light emitted by the lighting device 1 is set to 100%. The light emission amount of 6 is adjusted (S 361).

  FIG. 6 is a view showing the relationship between the rotation angle α (°) and the acceleration (g) in the direction of one axis (for example, only the X axis). Therefore, for example, accelerations (g) detected at 0 ° and 180 ° indicate the same acceleration (g) at two rotation angles (°) so that they are both 0, and they can not be distinguished. However, during actual light adjustment, acceleration (g) is detected independently on each of the two axes X and Y orthogonal to each other, so the acceleration (g) with respect to the rotation angle α (°) in the direction of the X axis And the change in acceleration (g) with respect to the rotation angle α (°) in the direction of the Y axis are detected 90 ° apart from each other. Therefore, the above-mentioned rotation angle α (°) can be distinguished by simultaneously detecting a change in acceleration (g) with respect to the rotation angle α (°) in each direction of the X axis and the Y axis.

  The process (S341, S351, S361) which adjusts the light emission amount of LED6, 6 is demonstrated based on FIG. The acceleration detection unit 10 receives an acceleration (g) from the acceleration sensor 7 based on the first light adjustment detection condition. The acceleration detection unit 10 calculates a rotation angle (α) from the detected acceleration (g), and transmits the rotation angle (α) to the light source control unit 12. The light source control unit 12 sets a current value to be supplied to the LEDs 6 and 6 in order to adjust the light emission state of the LEDs 6 and 6 corresponding to the rotation angle (α) based on the light adjustment condition for the first light adjustment. The current is supplied to the LEDs 6, 6. The setting of the current value is performed by PWM control.

  After the process (S341, S351, S361) of adjusting the light emission amount of the LEDs 6, 6 is finished, a series of processes after the process of providing 100 ms not to process each process (S31) are repeated. The above is the operation of the first dimming according to the embodiment of the present invention.

(Operation of second dimming)
FIG. 8 is a diagram for explaining the second dimming according to the embodiment of the present invention. FIG. 9 is a diagram showing an example of the temporal change of the acceleration at the time of the second light adjustment. FIG. 10 is a flowchart of processing performed by the microcomputer 9 at the time of the second light adjustment according to the embodiment of the present invention.

  In the following description, the second dimming is performed by detecting the acceleration only on one axis (for example, the X axis). However, in actual use, the accelerations are respectively applied to the X axis, the Y axis and the Z axis, and the acceleration sensor 7 can independently detect the accelerations applied to the respective axes. Therefore, it is possible to perform light control by detecting the acceleration applied to the remaining two axes (for example, the Y axis and the Z axis). Further, it is also possible to perform finer dimming by detecting accelerations applied to a plurality of axes.

  When the second light adjustment (S4) starts, first, when the acceleration applied to the X axis detected by the acceleration sensor 7 exceeds the positive first threshold shown in FIG. Then, setting is made to generate an interrupt signal to the acceleration detection unit 10 (S41). Then, the acceleration detection unit 10 waits for the generation of the interrupt signal (S42). When detecting the interrupt signal, the acceleration detection unit 10 detects the acceleration at predetermined time intervals, and reads the acceleration from the acceleration sensor 7 at each interval (S43). Note that "the process of detecting and reading the acceleration every predetermined period", which is the same process as S43, is also performed in S45, S47 and S48 described later.

  Thereafter, it is determined whether an acceleration exceeding a positive second threshold value larger than the positive first threshold value shown in FIG. 9 is detected (S44).

And
(1) The detected acceleration exceeds the positive second threshold (2) and the time until the acceleration falls below the positive second threshold is measured by the microcomputer 9 (S45), and the measurement time is At least the first time shown in FIG. 9 set in advance (S46)
(3) After the acceleration in the positive direction falls below the second threshold, the acceleration in the negative direction is detected, and the acceleration in the negative direction falls below the second threshold (S47)
(4) The time until the acceleration in the negative direction falls below the second threshold until it exceeds it again is measured by the microcomputer 9 (S48), and the measurement time is equal to or longer than the second time shown in FIG. Being (S49)
By satisfying the conditions (1) to (4), the microcomputer 9 recognizes that the lighting device 1 is "rocking", and changes the light emission amount of the LEDs 6, 6 (S50). The above is the second dimming operation.

  The main operation of the second dimming will be described based on FIG. The acceleration sensor 7 transmits the detected acceleration to the acceleration detection unit 10. The acceleration detection unit 10 detects swing from the detected acceleration. The acceleration detection unit 10 transmits to the light source control unit 12 that the swing has been detected. The light source control unit 12 sets a current value to be supplied to the LEDs 6 and 6 in order to adjust the light emission state of the LEDs 6 and 6 based on the light adjustment condition for the second light adjustment, and supplies the current to the LEDs 6 and 6 .

  The second light adjustment is performed a plurality of times each time it is recognized that the lighting device 1 is "rocked". For example, if the light emission amount of the LEDs 6 and 6 before the second dimming is performed is maximum, the light emission amount of the LEDs 6 and 6 is gradually decreased stepwise for each “rocking” of the lighting device 1. Then, after the light emission amounts of the LEDs 6 and 6 reach the minimum value, the light emission amounts of the LEDs 6 and 6 are gradually increased stepwise for each further “rocking”.

(Main effects obtained by the embodiment of the present invention)
The illumination device 1 according to the embodiment of the present invention can easily change the light emission state even in the installed state. Since the illumination device 1 has a size sufficient to fit in the palm of an adult, it is difficult to provide a switch or the like for changing the light emission state. Therefore, it is convenient that the light emission state can be changed by the first dimming.

  Further, an iron plate (not shown) is fixed to the bottom 5 of the lighting device 1. Therefore, the iron plate may be attached to a magnet provided on a wall or the like, and the lighting device 1 may be used in a state where the lighting device 1 is installed on the wall. In that case, it is difficult to rock the lighting device 1, but even in such a case, the first dimming is possible.

  Further, in the first light adjustment, it is possible to change the light emission state corresponding to both the clockwise and counterclockwise rotational forces with the illumination device 1 as the Z axis as a rotation axis.

  In addition, even when the lighting device 1 is not installed, the light emission state can be changed by the second light control by holding the hand and swinging it.

  The first light control and the second light control are both performed by the control of the microcomputer 9 based on the acceleration detected by one acceleration sensor 7. Therefore, the structure of the lighting device 1 does not have to be complicated. Further, switching between the first light control and the second light control can be performed by a simple process shown in FIG. 4 using the hall sensor 8.

(Other forms)
The lighting apparatus 1 according to the embodiment of the present invention described above is an example of the preferred embodiment of the present invention, but is not limited to this, and various modifications can be made without departing from the scope of the present invention. It is.

  For example, in the illumination device 1, the overall shape of the disk is a disk-like size that fits within the palm of an adult having a diameter of 3 cm or less and a thickness of about 1.5 cm. However, the size of the disc can be 10 cm or less in diameter and 5 cm or less in thickness. Further, the overall shape of the illumination device 1 is not limited to a disk shape, and may be a rectangular solid shape or a shape such as a cone, a pyramid, a truncated cone, a truncated pyramid, a sphere or the like.

  Moreover, the switch 3 which turns on / off the light emission of the illuminating device 1 by pushing the illuminating device 1 is arrange | positioned at the cylindrical exterior wall part 4. However, the switch 3 may not be provided. For example, the light emission may be turned on / off by applying an acceleration of a specific swing to the lighting device 1.

  An iron plate is fixed to the bottom 5 of the lighting device 1. However, this iron plate can be omitted because it is not an essential component. However, in this iron plate, the lighting device 1 can be installed on a magnet plate or the like, and even in a state where it is installed and fixed on the magnet plate, the fixing force is weak and the lighting device 1 can be rotated about the Z axis. Because, it is useful.

  In addition, the LEDs 6 and 6 included in the lighting device 1 are disposed on two lines along the light emitting surface 2 a passing the center of the light emitting plate 2 and at the end of the light emitting plate 2. However, the number of LEDs 6, 6 that the lighting device 1 has can be changed to one, three, and so on. Furthermore, the arrangement positions of the LEDs 6 and 6 can be changed as appropriate.

  Further, the acceleration sensor 7 is disposed at a position where the Z axis penetrates in the lighting device 1. However, the acceleration sensor 7 may be disposed at any position of the lighting device 1. However, in order to further stabilize the relationship between the rotation angle α (°) and the acceleration (g) when the illumination device 1 shown in FIG. 6 is rotated with the Z axis as the rotation axis, the Z axis penetrates the acceleration sensor 7 It is preferable to arrange in position.

  Further, the switching operation between the first light control and the second light control is performed based on a signal transmitted from the hall sensor 8. However, the switching operation between the first light control and the second light control may be performed under other conditions. In that case, the hall sensor 8 can be omitted.

  Moreover, the illuminating device 1 can perform 2nd light control. However, since the second dimming is not an essential process, the second dimming may not be performed. Also in this case, the hall sensor 8 can be omitted.

  Further, the first light adjustment is performed in a state where the Z axis is substantially horizontal. For example, the first dimming is performed in a state where the lighting device 1 is fixed to the wall. However, the first light adjustment may be performed with the Z axis shifted from the horizontal direction.

  Further, the period of no processing in the case of the first light adjustment shown in FIG. 7 = 100 ms (S31) can be appropriately changed. In addition, although the measurement of acceleration (S32) is performed 20 times at intervals of several ms, the interval and the number can be changed as appropriate.

  Further, the cases (S34, S35, S36) of the rotation angle α (°) can be changed as appropriate. For example, the number of cases of the rotation angle α (°) may be increased, and the amount of light emission of the LEDs 6 may be changed even with a slight rotation. For example, if the number of cases of the rotation angle α (°) is further increased, the amount of rotation and the amount of light emission of the lighting device 1 can be made substantially linear and smooth light control can be realized.

  Furthermore, the light emission amount etc. in the case of the process (S341, S351, S361) which adjusts the light emission amount of LED6, 6 can also be changed suitably. For example, the target to be adjusted may be a light emission state such as a light emission color instead of the light emission amount of the LEDs 6 and 6.

  Moreover, the conditions (S46, S47, S48, S49) or the processing method of S42, S43, S44, S45 in the second light control can be appropriately changed. it can.

  Further, the rotation axis Z for rotating the lighting device 1 at the time of the first light adjustment is a central axis (optical axis of the lighting device 1) in the emission direction of the light emitted from the LEDs 6, 6. The central axis Z penetrates the center of the light emitting plate 2 perpendicularly to the light emitting surface 2 a of the light emitting plate 2. However, the rotation axis Z for rotating the illumination device 1 at the time of the first light adjustment may be set as appropriate separately.

  Of the lighting device 1, only the light emitting plate 2 emits light. However, the exterior wall 4 and / or the bottom 5 may be made to emit light. Furthermore, only the exterior wall 4 or only the bottom 5 may emit light, or all of the light emitting plate 2, the exterior wall 4 and the bottom 5 may emit light.

  In FIG. 1, although the acceleration sensor 7, the Hall element sensor 8, the acceleration detection unit 10, the magnetic field determination unit 11 or the light source control unit 12 are described as separate members, actually the acceleration detection unit 10, the magnetic field determination unit 11, the light source control unit The reference numeral 12 is incorporated in the microcomputer 9. Further, it is also possible to combine a plurality of members into one member so that, for example, the acceleration sensor 7 and the acceleration detection circuit unit 10 are combined and mounted on a substrate as a one-chip IC.

  Further, in the present embodiment, the light emitting plate 2 is provided with a light diffusing function for diffusing light, and the light from the LEDs 6, 6 is diffused and then emitted from the light emitting surface 2a. Alternatively, the light emitting plate 2 can be made of a transparent material. However, in this case, it is expected that the uniformity of the light intensity of the light emitted from the light emitting surface 2a will be low.

  In addition, although the positive / negative of the detection direction of each axis of the acceleration sensor 7 is determined by the mechanical configuration of the acceleration sensor 7 at the time of the second light adjustment, the correction in software is performed and the first shaken direction is positive. It is also possible to assume that.

1 Lighting device 6 LED (light emitting member)
7 Acceleration sensor (part of light control member)
8 Hall sensor (magnetic sensor member)
9 Microcomputer (part of light control member)

Claims (1)

In a lighting device comprising: a light emitting member; and a light control member for adjusting a light emitting state of the light emitting member,
When the illumination device is rotated, it has rows first dimmer for varying the light emission state of the light emitting member on the basis of the rotational state,
The light control member has a magnetic sensor member for detecting a magnetic field,
When the magnetic sensor detects a magnetic field, the first light control is performed,
When the magnetic sensor member does not detect a magnetic field, when a rocking force is applied to the illumination device, the second light control is performed to change the light emitting state of the light emitting member based on the rocking force. Lighting device.