JP7135436B2 - lighting equipment - Google Patents

Description

Embodiments of the present invention relate to lighting devices.

A lighting system in which a camera and a microphone are connected to the lighting device has been introduced.

JP 2017-162682 A

In such a lighting system, since the design life of additional units such as cameras and microphones differs from that of the lighting device, there has been a demand for easy replacement of the additional units. There is also a demand for facilitating a change to a different additional unit according to the application of the lighting device.

The problem to be solved by the present invention is to provide a lighting device in which an additional unit can be easily replaced or changed.

A lighting device according to an embodiment includes a lighting unit and a connection terminal. The lighting section has a plurality of light emitting elements. An additional unit that performs a function other than lighting can be detached from the connection terminal. The lighting section has an additional unit control section that can control the additional unit, and a power supply section that supplies driving power to the additional unit.

According to the present invention, it is possible to provide a lighting device in which the additional unit can be easily replaced or changed.

FIG. 1 is a perspective view showing an appearance example of a lighting device according to a first embodiment. FIG. 2 is an exploded perspective view showing an example of an image pickup unit and an accommodating section. FIG. 3 is a diagram showing a modification of the light shielding cover. FIG. 4 is a block diagram schematically showing an example of the configuration of the lighting device according to the first embodiment. FIG. 5 is a block diagram schematically showing an example of the configuration of a lighting device according to a modification of the first embodiment; FIG. 6 is a block diagram schematically showing an example of the configuration of a lighting device according to the second embodiment.

A lighting device 1 according to an embodiment described below includes a lighting section 2 and connection terminals 16 . The lighting section 2 has a plurality of light emitting elements 15 . The connection terminal 16 can attach and detach an additional unit 63 that performs functions other than lighting. The lighting section 2 has an additional unit control section that can control the additional unit 63 and a power supply section that supplies driving power to the additional unit 63 .

The lighting device 1 according to the embodiment described below includes a housing portion 50 that houses the lighting portion 2 and the additional unit 63 .

The additional unit 63 according to the embodiment described below includes a functional unit that exhibits a function and a cover member that covers the additional unit 63 accommodated in the accommodation section 50 .

An additional unit 63 according to the embodiment described below is detachably fixed to the housing portion 50 by a magnet 38 .

An additional unit 63 according to the embodiment described below includes a control unit capable of controlling the lighting section 2 .

An additional unit 63 according to the embodiment described below includes a camera 33 adjacent to the illumination section 2 .

Embodiments according to the present invention will be described below with reference to the drawings. It should be noted that the embodiments shown below do not limit the technology disclosed by the present invention. In addition, the embodiments and modifications described below can be appropriately combined within a consistent range. In addition, in the following description, the same reference numerals are given to the same configurations, and the description later will be omitted as appropriate.

[First embodiment]
FIG. 1 is a perspective view showing an appearance example of a lighting device according to a first embodiment. As shown in FIG. 1 , the illumination device 1 has an illumination section 2 , a diffusion cover 20 , a light shielding cover 30 and a holding member 40 . The illumination device 1 is a ceiling-mounted illumination device in which a holding member 40 is installed on a ceiling surface, and light output from the illumination unit 2 is irradiated onto a floor surface, which is an example of an irradiation surface. An imaging unit 3 as an external device is also connected to the illumination device 1 . The lighting device 1 to which the imaging unit 3 is connected is mainly used indoors for purposes such as monitoring a production line in a factory and monitoring the status of employees in an office.

In order to make the explanation easier to understand, FIG. 1 shows a three-dimensional orthogonal coordinate system including the Z-axis, in which the vertically downward direction is the positive direction and the vertically upward direction is the negative direction. Also, the X-axis is shown along the length direction of the lighting device 1, and the Y-axis is shown along the width direction of the lighting device 1, respectively.

The lighting unit 2 has a plurality of light emitting elements (not shown) arranged at predetermined intervals on a long chassis or substrate (not shown) arranged along the Y-axis direction. The lighting bar is provided with a diffusion cover 20 on the floor surface side, that is, on the Z-axis positive direction side so that the light emitting element is housed between the .

The diffusion cover 20 is made of, for example, translucent material such as acrylic or polycarbonate. The diffusion cover 20 is frosted and has a function of diffusing the light emitted from the plurality of light emitting elements. Note that the diffusion cover 20 may be appropriately mixed with a diffusion material or a coloring agent.

The imaging unit 3 has a camera, which will be described later, and is arranged side by side so as to be adjacent to the lighting section 2 on the negative direction side of the X axis. The imaging unit 3 is an example of a functional unit having an imaging function. A light shielding cover 30 is arranged on the Z-axis positive direction side of the image pickup unit 3 , and the image pickup unit 3 is accommodated in an accommodation portion 50 formed between the light shielding cover 30 and the holding member 40 . By covering the imaging unit 3 with the light shielding cover 30, it is possible to prevent the light emitted from the diffusion cover 20 of the lighting section 2 from entering the lens of the camera. In addition, the light shielding cover 30 also contributes to improving the insulation and waterproofness of the imaging unit 3, for example. The light shielding cover 30 is an example of a cover member.

Next, the light shielding cover 30 and the housing portion 50 will be further described. FIG. 2 is an exploded perspective view showing an example of an image pickup unit and an accommodating section.

The light shielding cover 30 has a through hole 35 provided at a position facing the camera lens 3a of the imaging unit 3 . Thereby, the imaging function of the imaging unit 3 is ensured.

Further, the light shielding cover 30 has a projecting portion 36 projecting in the thickness direction of the lighting device 1 toward the holding member 40 . The projecting portion 36 is fixed or mounted so as to abut against the inner surface 41 of the holding member 40 . Further, the light shielding cover 30 has a holding portion 37 extending toward the diffusion cover 20 side along the length direction of the lighting device 1 . The holding portion 37 interferes with the diffusion cover 20 that covers the illumination portion 2 , so that the light shielding cover 30 is held more reliably.

The holding member 40 has a mounting plate 43 attached to the ceiling surface, and a peripheral wall 42 arranged to surround the outer edge of the mounting plate 43 in the thickness direction of the lighting device 1 . The holding member 40 holds the illumination section 2 and the imaging unit 3 housed in a housing section 50 formed between the peripheral wall 42 and the mounting plate 43 , the diffusion cover 20 and the light shielding cover 30 . Note that the holding member 40 may be integrally formed. Further, the peripheral wall 42 may be formed as separate members in the length direction and the width direction of the lighting device 1, for example.

Note that the configuration of the light shielding cover 30 is not limited to that shown in FIG. FIG. 3 is a diagram showing a modification of the light shielding cover.

The light shielding cover 30A shown in FIG. 3 has a projecting portion 36A projecting in the thickness direction of the lighting device 1 toward the holding member 40. As shown in FIG. A magnet 38 is arranged on the end surface of the projecting portion 36A, and the projecting portion 36A contacts the inner surface 41 of the holding member 40, thereby detachably fixing the light shielding cover 30 and the holding member 40 together. Magnet 38 is, for example, a ferrite magnet. If the holding member 40 is made of a non-magnetic material, it is preferable to arrange a magnetic material such as iron in the portion facing the magnet 38 .

Next, a functional configuration of the illumination device 1 will be described. FIG. 4 is a block diagram schematically showing an example of a configuration of a lighting device included in the lighting system according to the embodiment;

As shown in FIG. 4 , the illumination device 1 includes a connection portion 6 , a body portion 4 , an illumination portion 2 and an imaging unit 3 . The connecting portion 6 is a terminal block on which terminals for connecting various cables for operating the lighting device 1 are arranged.

The body portion 4 has a power control portion 7 , a connection terminal 16 and a storage portion 17 . The power control unit 7 has a power supply unit 13 and a control microcomputer 14 .

The power supply unit 13 has a power supply circuit that converts the AC power supplied from the AC power supply 21 via the connection unit 6 into DC power and outputs the DC power. The power supply circuit can adopt an integrated circuit such as an ASIC (Application Specific Integrated Circuit). Also, the AC power supply 21 is, for example, a commercial power supply.

In addition, the power supply unit 13 supplies direct current at a predetermined voltage (eg, 50 V) to the lighting unit 2 to control lighting of the light emitting element 15, which will be described later. Specifically, according to the control signal output from the control microcomputer 14, the power supply unit 13 turns on/off the light emitting element 15, changes the illuminance, changes the color, and the like. The power supply unit 13 is an example of a lighting control unit. Furthermore, the power supply unit 13 converts the direct current into a predetermined voltage (eg, 5 V) and supplies power to the imaging unit 3 .

The control microcomputer 14 is a processing unit that generates a control signal preset in the storage unit 17 and outputs the control signal to the power supply unit 13, lighting control unit, and imaging control unit described later.

The connection terminal 16 is a connector for connecting an external device for connecting the imaging unit 3 to the main body 4 . The connection terminal 16 is, for example, a USB (Universal Serial Bus) terminal, an IEEE (The Institute of Electrical and Electronic Engineers) 1394 terminal, or a Lightning (registered trademark) terminal. Also, the connection terminal 16 may be, for example, a terminal for power supply that does not have a communication function, such as a DC input terminal or an AC input terminal.

The lighting section 2 has a plurality of light emitting elements 15 . The light emitting elements 15 are connected to wiring patterns on the chassis, are supplied with a DC output from the power supply section 13, and are controlled to be lit by the lighting control section. The light emitting element 15 includes, for example, an LED chip arranged in a main body made of ceramics, and translucent resin for molding, such as epoxy resin or silicone resin, which seals the LED chip.

The LED chip is, for example, a blue LED chip that emits blue light. The translucent resin is mixed with a phosphor, and in order to emit white light, a yellow phosphor that emits yellow light, which is complementary to blue light, is used. there is The LED chip may emit red light, green light, or white light, for example. Also, the translucent resin may be a diffusion member that has a milky white color and diffuses light.

In addition, the LED may be mounted directly on the chassis or substrate of the illumination unit 2, or may be mounted with a bullet-shaped LED, and the mounting method and form are not particularly limited. not something.

The lighting section 2 also has an imaging unit control section (not shown) that can control the imaging unit 3 and a power supply section (not shown) that supplies drive power to the imaging unit 3 . The imaging unit control section is an example of an additional unit control section. The imaging unit control section controls the imaging unit 3 via an imaging control section 32 which will be described later.

The imaging unit 3 has a connection terminal 31 , an imaging control section 32 and a camera 33 . The connection terminal 31 is a connector connected to the connection terminal 16 . A connector corresponding to the type of the connection terminal 16, such as a USB terminal, is adopted as the connection terminal 31, for example. By connecting the connection terminal 31 to the connection terminal 16, power is supplied from the lighting device 1 to the imaging unit 3, and the imaging unit 3 becomes usable.

The imaging control unit 32 controls imaging by the camera 33 . The camera 33 includes an imaging device such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor) that electronically acquires an image. The imaging unit 3 may have a storage section (not shown) for recording images captured by the camera 33 .

As described above, according to the illumination device 1 according to the first embodiment, the image pickup unit 3 can be easily replaced or changed by having the connection terminal 16 to which the image pickup unit 3 can be attached and detached. The illumination device 1 also has a housing portion 50 that houses the image pickup unit 3 and light shielding covers 30 and 30A that cover the image pickup unit 3 . As a result, it is possible to make it difficult for the light emitted from the illumination section 2 to enter the lens 3a, and furthermore, the insulation and waterproofness of the imaging unit 3 are improved.

In the above-described embodiment, the imaging unit 3 is arranged at the end of the lighting unit 2 in the length direction, but it is not limited to this, and may be arranged in the center of the lighting device 1, for example.

[Modification]
The above-described embodiment is an example, and various modifications and applications are possible.

For example, in the above-described embodiment, the external device connectable to the connection terminal 16 is the imaging unit 3 housed in the housing portion 50, but the present invention is not limited to this. FIG. 5 is a block diagram schematically showing an example of the configuration of a lighting device according to a modification of the first embodiment;

In the illumination device 1 shown in FIG. 5, an additional unit 63 is connected to the connection terminal 16 instead of the imaging unit 3 in the illumination device 1 according to the first embodiment. The connection terminal 16 is configured such that the additional unit 63 can be attached and detached. That is, the additional unit 63 has connection terminals (not shown) corresponding to the connection terminals 16, for example. Such a connection terminal is, for example, the connection terminal 31 of the imaging unit 3 .

The additional unit 63 has functional units that perform functions other than illumination. The additional unit 63 is, for example, a sensor such as an infrared sensor (human sensor), a temperature sensor, an illuminance sensor (brightness sensor). The additional unit 63 may be a smoke sensor that detects smoke, or a gas sensor that detects gas leakage. Further, the additional unit 63 may be a space sensor that detects the size of the space in which the lighting device 1 is installed. The space sensor may be, for example, an ultrasonic sensor that detects the size of a space using reflected ultrasonic waves.

By connecting the sensor as the additional unit 63 to the connection terminal 16 in this way, the lighting device 1 can have a sensor function according to the type of the additional unit 63 . Moreover, the lighting device 1 can change the control according to the detection result of the sensor. For example, assume that the additional unit 63 is a human sensor. The lighting device 1 can brighten or darken the lighting unit 2 according to the presence or absence of a person detected by the human sensor. Thereby, the lighting device 1 can suppress power consumption, for example.

Also, the additional unit 63 may be a control unit capable of controlling the lighting section 2 based on a control signal received from an external device (not shown), for example. The control unit is for example a wireless communication module. The lighting device 1 can remotely control the lighting section 2 by communicating with the control microcomputer 14 or transmitting a control signal to the control microcomputer 14 by the additional unit 63 receiving a control signal from an external device. The control signal received by the additional unit 63 may be, for example, DALI (Digital Addressable Lighting Interface), PWM (Pulse Width Modulation), or the like. Also, even if a new communication standard appears, it can be handled by replacing the additional unit 63 .

As described above, according to the illumination device 1 according to the modification of the first embodiment, the imaging unit 3 can be easily replaced or changed by having the connection terminal 16 to which the additional unit 63 can be detached. The lighting device 1 may have a cover member that covers the additional unit 63 housed in the housing portion 50 . The cover member can be, for example, one of the light shielding covers 30 and 30A that covers the imaging unit 3 that does not have the through hole 35 . Further, the cover member may have wiring holes, for example, according to the characteristics of the functional units that the additional unit 63 has. By covering the additional unit 63 with the cover member in this manner, for example, the insulation and waterproofness of the additional unit 63 are improved.

[Second embodiment]
FIG. 6 is a block diagram schematically showing an example of the configuration of the lighting device according to the embodiment; A lighting device 1A shown in FIG. 6 has the same configuration as the lighting device 1 shown in FIG.

In the lighting device 1A, the lighting section 2A has the connection terminal 72 instead of the main body section 4A. The connection terminal 72 is similar to the connection terminal 16 in that it is a connector for connecting an external device for connecting the additional unit 63 to the lighting device 1A.

The connection terminal 72 is connected to the light emitting element 15 via the voltage converter 71 . The voltage conversion unit 71 converts the voltage value of the input power source input from the main unit 4 side into a voltage suitable for the operation of the additional unit 63 and outputs the voltage to the connection terminal 72 . The voltage conversion unit 71 converts the voltage value of the input power supply to, for example, 1/10 (eg, 5V). The voltage converter 71 has a switching element such as an FET, for example, and steps down the DC voltage by turning on/off the switching element. The voltage converter 71 is, for example, a step-down DC-DC converter.

As described above, according to the illumination device 1A according to the second embodiment, the additional unit 63 can be easily replaced or changed by having the connection terminal 72 to which the additional unit 63 can be detached.

In each of the above-described embodiments, the illumination devices 1 and 1A each have one connection terminal 16, 72. However, the present invention is not limited to this, and a plurality of connection terminals may be provided. Alternatively, the lighting device may have both connection terminals 16 and 72 . Also, the number of additional units 63 connected to the lighting devices 1 and 1A may be one, or may be plural. In such a case, the additional unit control section appropriately controls each of the additional units connected to the connection terminals 16 and 72, and the power supply section provides predetermined driving to each of the additional units connected to the connection terminals 16 and 72. can supply power for

Further, in each of the above-described embodiments, the illumination devices 1 and 1A are described as having the light shielding covers 30 and 30A that cover the imaging unit 3 or the additional unit 63. However, the present invention is not limited to this. may

Further, in each of the above-described embodiments, the imaging unit 3 or the additional unit 63 is described as being housed in the housing section 50, but this is not the only option, and the housing section 50 does not have to house them.

In addition, in each of the above-described embodiments, the illumination devices 1 and 1A are described as being directly attached to the ceiling. Also, the lighting devices 1 and 1A may be attached to, for example, a wall surface instead of the ceiling surface.

While embodiments of the invention have been described, the embodiments are provided by way of example and are not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

1, 1A lighting device 2, 2A lighting section 3 imaging unit 4, 4A body section 15 light emitting element 16, 72 connection terminal 33 camera 40 holding member 50 housing section 63 additional unit

Claims (6)

a lighting unit having a plurality of light emitting elements;
Add-on units that perform functions other than lighting and:
a body portion that holds the lighting portion and the additional unit;
a power supply section provided in the main body section for controlling lighting of the lighting section;
a connection terminal provided on the main body portion or the lighting portion and to which the additional unit is connected ;
and
A lighting device that controls the additional unit connected to the connection terminal and supplies drive power. a housing section that houses the lighting section and the additional unit;
2. The illumination device of claim 1, comprising: The additional unit is
a functional unit that performs the function;
a cover member that covers the additional unit housed in the housing;
3. The illumination device of claim 2, comprising: 4. The lighting device according to claim 3, wherein the additional unit is detachably fixed to the accommodating portion by a magnet. The lighting device according to any one of claims 1 to 4, wherein the additional unit includes a control unit capable of controlling the lighting section. The lighting device according to any one of claims 1 to 5, wherein the additional unit includes a camera adjacent to the lighting section.

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