JP6522057B2 - Portable light emitting device, light emitting system, and control method of portable light emitting device - Google Patents

Description

  The present invention relates to a portable light emitting device, a light emitting system, and a control method of the portable light emitting device.

  In concert halls and the like, portable light emitting devices (pen lights etc.) may be used. For example, Patent Document 1 discloses a penlight having a variable emission color.

JP, 2015-141754, A

  The inventor considered that the event would be further enhanced if the light emission color of the portable light emitting device could be changed according to the will of a person other than the holder of the portable light emitting device (for example, the organizer of the event).

  The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to change the luminescent color of a portable light emitting device according to the will of a person other than the holder of the portable light emitting device. is there.

According to the present invention, a light emitting unit whose light emitting color is variable;
A light detection unit that detects the intensity of light;
A control unit configured to control an emission color of the light emitting unit based on a detection value of the light detection unit;
A portable light emitting device is provided.

According to the invention, a portable light emitting device as described above,
A light irradiation device provided in a facility capable of accommodating a plurality of people, and emitting light of a wavelength detectable by the light detection unit to an area where the plurality of people exist;
A control device that controls an irradiation direction of light of the light irradiation device;
A light emitting system is provided.

According to the present invention, a plurality of persons possess the portable light emitting device described above,
A control method of a portable light emitting device is provided, which irradiates light having a wavelength detectable by the light detection unit toward a region where the plurality of persons are present, and moves a portion of the region to be irradiated with the light. .

  According to the present invention, the luminescent color of the portable light emitting device can be changed in accordance with the will of the person other than the holder of the portable light emitting device.

It is a front view of the portable light-emitting device concerning a 1st embodiment. It is a functional block diagram of a portable light-emitting device. It is a schematic diagram for demonstrating the environment where a portable light-emitting device is used. It is a flowchart which shows the 1st example of control of the light emission part by a control part. It is a flowchart which shows the 2nd example of control of the light emission part by a control part. It is a flowchart which shows the 3rd example of control of the light emission part by a control part. It is a flowchart which shows an example of operation | movement of the control part in 2nd Embodiment. It is a figure for demonstrating control of the PWM system which a control part performs.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and the description thereof will be appropriately omitted.

First Embodiment
FIG. 1 is a front view of a portable light emitting device 10 according to the first embodiment, and FIG. 2 is a functional block diagram of the portable light emitting device 10. The portable light emitting device 10 is, for example, a penlight used in an event such as a concert, and includes a light emitting unit 110, a light detecting unit 120, and a control unit 130. The light emitting unit 110 has a variable emission color. The light detection unit 120 detects the light intensity. The control unit 130 controls the light emission color of the light emitting unit 110 based on the detection value of the light detection unit 120. The portable light emitting device 10 will be described in detail below.

  The light emitting unit 110 has, for example, a plurality of types of light emitting elements (for example, LEDs). The plurality of types of light emitting elements emit light in the visible light range, but the emission colors are different from each other. The light emitting unit 110 includes at least one red light emitting element, one green light emitting element, and one blue light emitting element. However, the light emitting unit 110 may have light emitting elements of other colors. The light emission timing and the light emission intensity of the plurality of types of light emitting elements are controlled by the control unit 130 independently of each other. For this reason, the control unit 130 can also cause only certain types of light emitting elements to emit light, and can also cause at least two or more types of light emitting elements to simultaneously emit light. For this reason, the light emitting unit 110 emits at least white (including daylight white) light, and also emits light of each color (for example, red, blue, or green) of each light emitting element.

  The light detection unit 120 includes a photoelectric conversion element such as a photodiode, and detects the intensity of external light of the portable light emitting device 10. Here, in the photoelectric conversion element of the light detection unit 120, it is preferable that the wavelength with the highest photoelectric conversion efficiency be different from the peak wavelengths of all the light emitting elements of the light emission unit 110. In particular, the wavelength at which the photoelectric conversion efficiency of the photoelectric conversion element is the highest is preferably less than half of the peak value in the emission spectrum of the light emitting element of the light emitting unit 110. For example, the photoelectric conversion element included in the light detection unit 120 photoelectrically converts light in the infrared region. In addition, in order to suppress the light from the light emitting unit 110 from being incident on the light detecting unit 120, a light blocking member may be provided between the light emitting unit 110 and the light detecting unit 120.

  The control unit 130 has, for example, a CPU, and controls the light emitting unit 110 according to a program stored in the storage unit 132 (or a memory incorporated in the control unit 130). The control unit 130 is, for example, a microcomputer and a peripheral circuit mounted on a circuit board.

  The light emitting unit 110, the light detecting unit 120, and the control unit 130 are housed in the case 12 of the portable light emitting device 10. Although the case 12 is light transmissive, it is preferable that the case 12 have a configuration (such as having irregularities on the surface or the inner surface) such that the transmitted light is diffused.

  FIG. 3 is a schematic view for explaining an environment in which the portable light emitting device 10 is used. As described above, the portable light emitting device 10 is used at an event hall. Specifically, each of a plurality of participants (for example, a spectator) of the event has a portable light emitting device 10. And the light irradiation apparatus 20 and the control apparatus 30 are installed in the event hall. The light irradiation device 20 emits light toward the area where the participants are present (for example, the audience seat). The light includes a wavelength that can be detected by the light detection unit 120 of the portable light emitting device 10. The light irradiation device 20 may emit light in the visible light range, or may emit light (for example, infrared light) outside the visible light range. Moreover, the light irradiation apparatus 20 has a variable light irradiation direction. The control device 30 controls the irradiation direction of the light of the light irradiation device 20. In other words, the control device 30 operates the position where the light is irradiated at the event hall.

  And the light irradiation apparatus 20 controls the irradiation direction of the light irradiation apparatus 20 so that the locus | trajectory (for example, a character and a figure) previously left to the area | region where a participant exists may be drawn. Then, the emission color of the portable light emitting device 10 at a position overlapping this locus changes. For this reason, the stage performance of an event can be improved.

  FIG. 4 is a flowchart showing a first example of control of the light emitting unit 110 by the control unit 130. In a normal state, that is, in a state in which the portable light emitting device 10 is not exposed to external light (for example, light from the light emitting device 20), the detection value of the light detection unit 120 is below the reference value (or less than the reference value) . Therefore, the control unit 130 causes the light emitting unit 110 to emit light in the first emission color (for example, white) (step S10). The first luminescent color of all the portable light emitting devices 10 is preferably the same as each other, but the first luminescent color of some of the portable light emitting devices 10 is the same as that of the other portable light emitting devices 10. It may be different from the first luminescent color.

  Then, when the outside light strikes the portable light emitting device 10 and the detection value of the light detection unit 120 becomes equal to or more than (or exceeds) the reference value (step S20: Yes), the control unit 130 Light is emitted in a second light emission color (for example, red, blue or green) different from the light emission color 1 (step S30). The second emission colors of all the portable light emitting devices 10 may be the same as one another. Also, the second emission color of some portable light emitting devices 10 may be different from the second emission color of other portable light emitting devices 10.

  Thereafter, when the detection value of the light detection unit 120 falls below the reference value (step S40: Yes), the control unit 130 returns the light emission color of the light emission unit 110 to the first light emission color (step S10).

  According to the first example, the light emission color of the portable light emitting device 10 is determined depending on whether the portable light emitting device 10 is irradiated with light having a certain intensity or more. For this reason, the stage performance of an event can be improved.

  FIG. 5 is a flowchart illustrating a second example of control of the light emitting unit 110 by the control unit 130. In the example shown in the figure, after the control unit 130 causes the light emitting unit 110 to emit light in the second light emission color (step S30), when a predetermined time elapses (step S42: Yes), the light emission color of the light emitting unit 110 Revert to the first emission color. Others are the same as the example shown in FIG. The predetermined time here is, for example, 1 second or more, and for example, 60 seconds or less.

  According to the second example, the light emission color of the portable light emitting device 10 becomes the second light emission color for a certain period of time after being irradiated with the light having a certain intensity or more. Therefore, by scanning the light at the event site, characters, patterns, etc. can be drawn at the event site. For this reason, the stage performance of an event can be improved.

  FIG. 6 is a flowchart illustrating a third example of control of the light emitting unit 110 by the control unit 130. In the example illustrated in the figure, after the light emitting unit 110 causes the light emitting unit 110 to emit light in the second light emission color (step S30), the detection value of the light detecting unit 120 falls below the reference value (step S40: Yes). After a predetermined time has elapsed from that timing (step S44: Yes), the luminescent color of the light emitting unit 110 is returned to the first luminescent color. Others are the same as the example shown in FIG.

  According to this third example, as in the second example, by scanning light at the event hall, characters, patterns, etc. can be drawn on the event hall. For this reason, the stage performance of an event can be improved.

Second Embodiment
The portable light emitting device 10 and the control device 30 according to the present embodiment are the same as the portable light emitting device 10 and the control device 30 shown in the first embodiment except for the following points.

  First, the control device 30 repeatedly turns on and off the light emission of the light irradiation device 20. The on / off period is, for example, 30 Hz or more, preferably 50 Hz or more, and more preferably 100 Hz or more. And this on-off means a digital signal. For example, the control device 30 causes the light emitting device 20 to emit light when the digital signal “1” is indicated, and does not cause the light emitting device 20 to emit light when the digital signal “0” is indicated.

  The control device 30 outputs identification information indicating a light emission pattern of the portable light emitting device 10 by light emission of the light irradiation device 20. Then, the portable light emitting device 10 recognizes the light emission pattern by the identification information indicated by the light emission of the light irradiation device 20, and emits light with the recognized light emission pattern.

  FIG. 7 is a flowchart showing an example of the operation of the control unit 130 in the present embodiment. The output of the light detection unit 120 of the portable light emitting device 10 is turned on or off according to the on / off of the light emission of the light emitting device 20. The control unit 130 recognizes the output from the light detection unit 120 as a digital signal (step S100). In the storage unit 132, information indicating the light emission pattern of the light detection unit 120 is stored, for example, for each identification information. In the information indicating one light emission pattern, at least one set of light emission color, light emission intensity, and light emission time is indicated. Then, the control unit 130 treats the recognized digital signal as identification information, reads out and recognizes a light emission pattern corresponding to the identification information from the storage unit 132 (step S120), and controls the light emitting unit 110 according to the read light emission pattern Step S130).

The control unit 130 controls the light emission intensity of the light emitting unit 110 to a plurality of gradations (for example, 255 gradations) using, for example, a PWM method. Specifically, as shown in FIG. 8, the control unit 130 controls the ratio of the on time (T _on / (T _on + T _off )) in one cycle (T) to obtain the light emission intensity of the light emitting unit 110. Control. Incidentally, the difference in length of the T _on the adjacent gradations may be a constant or may be different. For example, set the light emission characteristics of the light-emitting element emitting portion 110 has, by the luminosity of the human eye, so that a person feels when linearly luminous intensity is changed, the length of the T _on the gradation May be

  As described above, according to the present embodiment, the control device 30 can transmit information indicating a light emission pattern to the portable light emitting device 10. For this reason, the stage performance of an event can be improved.

  Although the embodiments of the present invention have been described above with reference to the drawings, these are merely examples of the present invention, and various configurations other than the above can also be adopted.

DESCRIPTION OF SYMBOLS 10 Portable type light-emitting device 20 Light irradiation apparatus 30 Control apparatus 110 Light emission part 120 Light detection part 130 Control part 132 Storage part

Claims (6)

A portable light emitting device,
A light emitting unit whose light emitting color is variable;
A light detection unit that detects the intensity of light;
A control unit configured to control an emission color of the light emitting unit based on a detection value of the light detection unit;
Equipped with
When the control unit detects a light from a light emitting device different from the portable light emitting device and the other portable light emitting device, the first detection value, which is the detected value, falls below a reference value. as well as the emission color of the light emitting portion to the first emission color, before Symbol portable light emitting device for the first test detection value to the emission color of the light emitting portion to the second emission color when it is equal to or greater than the reference value. In the portable light emitting device according to claim 1,
Wherein, when the emission color of the light emitting portion is made to emit light at the second emission color, after the front Symbol first test detection value has elapsed a predetermined time period from below the reference value, the A portable light emitting device, wherein the light emitting color of the light emitting unit is the first light emitting color. A portable light emitting device,
A light emitting unit whose light emitting color is variable;
A light detection unit that detects the intensity of light;
A control unit configured to control an emission color of the light emitting unit based on a detection value of the light detection unit;
Equipped with
The control unit
Light emission from the light emitting unit when the first detection value, which is the detection value when light from a light emitting device different from the portable light emitting device and the other portable light emitting device is detected, is lower than a reference value Make the color the first emission color,
The emission color of the light-emitting portion while a second emission color, the time the emission color of the light emitting portion predetermined from the second emission color when the front Symbol first test detection value is equal to or higher than the reference value The portable light emitting device, wherein the light emitting color of the light emitting unit is changed to the first light emitting color after the lapse of time. The portable light emitting device according to any one of claims 1 to 3.
The light detection unit is a portable light emitting device that detects light in the infrared region. The portable light emitting device according to any one of claims 1 to 4.
The light irradiator, which is provided in a facility capable of accommodating a plurality of persons , and irradiates a region including the plurality of persons with light including a wavelength detectable by the light detector.
A control device that controls an irradiation direction of light of the light irradiation device;
A light emitting system comprising: Having a plurality of persons possess the portable light emitting device according to any one of claims 1 to 4;
A portable type that irradiates light including a wavelength that can be detected by the light detection unit toward a region where the plurality of people are present using the light irradiation device, and moves a portion of the region to be irradiated with the light. Control method of light emitting device.

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