Lighting fixtures, underwater lighting fixtures

Abstract

This invention provides an underwater lighting fixture that enables reliable and simple synchronized control of multiple lighting fixtures when using them in environments such as underwater. [Solution] A lighting fixture 1 comprising a housing portion 2 having an opening 21 and a gripping portion 3 extending from the housing portion 2, wherein the lighting fixture 1 comprises an IR transmitting unit 22, an IR receiving unit 23, and an operating unit 25 capable of instructing the IR transmitting unit 22 to transmit a dimming signal, and the IR transmitting unit 22 and / or the IR receiving unit 23 have a wired connection port 24 that enables wired optical communication by being wired to another lighting fixture 1 via a cable.

Description

Technical Field

[0006] , , , , ,

[0007] ,

[0001] The present invention relates to a lighting fixture and a lighting fixture for underwater use.

Background Art

[0002] Through activities such as scuba diving, it is widely practiced to take pictures of organisms, natural objects, etc. in an underwater environment. When taking pictures of organisms, natural objects, etc. in an underwater environment, a lighting fixture is used in combination with the imaging equipment.

[0003] Here, in water, due to being strongly affected by the density and resistance of water compared to in air, the operation is slower than usual and there may be limitations in movement. Therefore, conventionally, a technique of IR (infrared) connecting a lighting fixture and a dimming switch separated from the lighting fixture is known.

[0004] Also, as a conventional technique related to IR (infrared) connection, there is known a lighting fixture including a transmission unit that transmits an infrared light signal and a reception unit that receives the infrared light signal reflected by an object, and controlling the switching of the light emission mode in response to the position of the object calculated from the infrared light signal.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Normally, a technique for simultaneously dimming a plurality of lighting fixtures in a state of being wired-connected to a flashlight-like lighting fixture held by one person in one hand has not been conventionally studied.

[0007] An object of the present invention is to provide a technique for efficiently and simply operating a plurality of flashlight-like lighting fixtures even underwater. [Means for solving the problem]

[0008] [1] The present invention, which solves the above problems, is a lighting fixture comprising a housing portion having an opening and a gripping portion connected to the housing, The aforementioned lighting fixture is IR transmission unit, IR receiver unit, This lighting fixture has an operating unit capable of instructing the IR transmitting unit to transmit a dimming signal.

[0009] Furthermore, the present invention, which solves the above problems, is characterized in that the IR transmitting unit and / or the IR receiving unit have a wired connection port that enables wired optical communication by being wired to another lighting fixture via a cable.

[0010] [2] The present invention also relates to an underwater lighting fixture comprising a housing portion having an opening and a gripping portion connected to the housing, The aforementioned lighting fixture is IR transmission unit, IR receiver unit, An operating unit capable of instructing the IR transmitting unit to transmit a dimming signal, This is an underwater lighting fixture having a light-transmitting waterproof wall positioned to close the opening in the housing.

[0011] Furthermore, the present invention relating to [2] is characterized in that the IR transmitting unit and / or the IR receiving unit have a wired connection port that enables wired optical communication by being wired to another lighting fixture via a cable.

[0012] [3] The IR transmitting unit and the IR receiving unit are also the lighting fixtures described in [1] or [2], which are provided on the outer wall of the housing.

[0013] [4] A preferred embodiment of the present invention is that the operating unit includes a dimmer switch, The dimmer switch is provided in the housing portion, and the lighting fixture is one of the items described in [1] to [3].

[0014] [5] A preferred embodiment of the present invention is that the operation unit includes two or more dimming switches, The lighting fixture according to any one of [1] to [4], where the dimming switch, the IR transmitter, and the IR receiver are provided on the same circumference of the housing unit.

[0015] [6] The present invention relates to two or more of the aforementioned lighting fixtures, a cable enabling optical communication by wire-connecting the wired connection port of one of the lighting fixtures and the wired connection port of the other lighting fixture, and also includes a lighting fixture set.

[0016] [7] The present invention relates to two or more of the aforementioned lighting fixtures, a cable enabling optical communication by wire-connecting the wired connection port of one of the lighting fixtures and the wired connection port of the other lighting fixture, [[ID=​​​​​​​​​​​​​​​​​​​​​​​​​​​ [Figure 5] Figure 5 is a dimming flowchart showing the connection of lighting fixtures 1 in this embodiment and the dimming of the master unit. [Figure 6] Figure 6 shows an example of connecting lighting fixtures 1 in this embodiment. [Figure 7] Figure 7 shows an example of connecting lighting fixtures 1 in this embodiment. [Figure 8] Figure 8 shows an example of connecting lighting fixtures 1 in this embodiment. [Modes for carrying out the invention]

[0019] The lighting fixture 1 of this embodiment will be described below. However, the technical scope of the present invention is not limited to this embodiment.

[0020] <1> Lighting fixture 1 The present invention relates to a lighting fixture 1 comprising a housing portion 2 having an opening 21 and a gripping portion 3 connected to the housing portion 2.

[0021] In this embodiment, it is preferable that the lighting fixture 1 comprises a housing portion 2 having an opening 21 and a gripping portion 3 extending from the housing portion 2. Examples of the lighting fixture 1 of the above form include a flashlight and a hand light. Furthermore, in this specification, "underwater lighting fixture 1" refers to a lighting fixture 1 that has waterproof performance and light emission performance suitable for use underwater.

[0022] Furthermore, the present invention includes an IR transmission unit 22, IR receiving unit 23, It includes an operation unit 25 that can instruct the IR transmission unit 22 to transmit a dimming signal.

[0023] Furthermore, in the present invention, the IR transmitting unit 22 and the IR receiving unit 23 are provided on the outer wall of the housing unit 2.

[0024] Furthermore, in the present invention, the IR transmitting unit 22 and / or the IR receiving unit 23 are characterized in that they have a wired connection port 24 that enables wired optical communication by being wired to another lighting fixture 1 via a cable.

[0025] By adopting the above configuration, multiple lighting devices 1 can be synchronized. Furthermore, by adopting the above configuration, multiple flashlight-like lighting devices 1 can be operated efficiently and easily even underwater.

[0026] "Wired optical communication" refers to all communication methods that transmit and receive optical signals through optical fiber cables, plastic optical fibers, or other light-transmitting linear or cable-like media.

[0027] "Synchronized" refers to a state in which the timing of the operations of multiple lighting fixtures 1 (e.g., turning on, turning off, changing brightness, emitting light) are synchronized by a time difference that is practically negligible (for example, on the order of milliseconds or less, preferably on the order of microseconds or less).

[0028] Below, we will first explain the details of the housing section 2 and the gripping section 3.

[0029] (1) Housing section 2 In this specification, the housing portion 2 is a component that forms part of the framework of the lighting fixture 1 and has an opening 21 that guides light from a light source (not shown) in one direction. The housing portion 2 is the component corresponding to the head when the lighting device in this embodiment is a flashlight.

[0030] Furthermore, "the outer wall of the housing 2" refers to the surface of the wall that constitutes the housing of the lighting fixture 1 that comes into direct contact with the external environment (air, water, etc.) under normal use conditions.

[0031] In this specification, it is preferable that the housing portion 2 is made of a material that has waterproof properties, pressure resistance (especially when used in a location underwater), corrosion resistance (against seawater, etc.), and mechanical strength. The material of the housing 2 can be exemplified by resin materials (acrylic, polycarbonate), metal materials (aluminum alloy, stainless steel), or tempered glass.

[0032] The shape of the housing 2 is not particularly limited; for example, it can be cylindrical or rectangular.

[0033] (2) Grip part 3 The lighting fixture 1 of this embodiment has a gripping portion 3 connected to the housing portion 2. The gripping portion 3 is a component that allows the user to stably hold the lighting fixture 1 by hand. The gripping portion 3 is a component that corresponds to the body portion when the lighting device in this embodiment is a flashlight.

[0034] Here, the gripping portion 3 may be formed integrally with the housing portion 2, or it may be formed in a way that the housing portion 2 and the gripping portion 3 are connected as separate parts. Furthermore, the lighting fixture 1 of this embodiment may have a gripping portion 3 that extends from the housing portion 2.

[0035] In this specification, the gripping portion 3 is preferably made of a material that is waterproof, pressure resistant (especially when used underwater), corrosion resistant (against seawater, etc.), and has mechanical strength. The material of the gripping part 3 can be exemplified by resin materials (acrylic, polycarbonate), metal materials (aluminum alloy, stainless steel), or tempered glass.

[0036] In this embodiment, it is preferable that the lighting fixture 1 houses a control unit that controls instructions from the operation unit 25 and a power supply unit inside the gripping unit 3.

[0037] Next, we will describe in more detail each component of lighting fixture 1.

[0038] In this embodiment, the housing portion 2 of the lighting fixture 1 has an IR transmitting unit 22, an IR receiving unit 23, and a wired connection port 24 on its outer wall.

[0039] (1-1) About the IR transmission unit 22 The IR transmission unit 22 is a component that converts the electrical dimming signal from the operation unit 25 into an infrared (IR) signal of a specific wavelength and sends it to the connection cable (optical fiber cable 5) via the wired connection port 24.

[0040] The IR transmitting unit 22 mainly consists of an infrared light-emitting element (infrared light-emitting diode; IR-LED) and a transistor and constant current circuit that drive it. In this embodiment, for example, an optical component such as a focusing lens may be interposed between the IR-LED and the end face of the optical fiber to improve the coupling efficiency to the optical fiber.

[0041] (1-2) About the IR receiver 23 The IR receiving unit 23 is a component that receives the dimming signal from the IR transmitting unit 22, converts it into an electrical signal, and inputs it to the operation unit 25.

[0042] The IR receiving unit 23 mainly consists of an infrared light-receiving element (phototransistor), an amplifier, and a receiving circuit (e.g., a transimpedance amplifier, a comparator) that shapes the signal into a digital signal. In this embodiment, for example, an optical filter that transmits only a specific wavelength band may be placed in front of the light-receiving element to reduce the influence of ambient light (such as sunlight).

[0043] (1-3) 24 wired connection ports In this embodiment, the wired connection port 24 is a mechanism that can fix the terminal 51 of the cable described later in an inserted state. In this embodiment, it is preferable that the wired connection port 24 is provided so as to surround the IR transmission unit 22 and the IR reception unit 23, respectively. With the above configuration, the IR transmitting unit 22 and / or the IR receiving unit 23 can be wired to another lighting fixture 1 via a cable.

[0044] In this case, the wired connection port 24 is preferably a wired connection hole. Furthermore, it is preferable that the wired connection port 24 includes a fixing part that can secure the cable terminal 51 in the inserted state.

[0045] (1-4) Arrangement of IR transmitter 22 and IR receiver 23, and wired connection port 24 In this embodiment, the IR transmitting unit 22 and the IR receiving unit 23 are arranged on the outer wall of the housing unit 2. With the above configuration, the wired connection port 24 (optical connector port on the exterior wall) does not interfere with the gripping part 3, making it easier to handle the lighting fixture 1 even underwater.

[0046] Furthermore, it is preferable that the IR transmitting unit 22 and the IR receiving unit 23 are located on the same circumference of the housing unit 2. With the above configuration, the wired connection port 24 (optical connector port on the exterior wall) does not interfere with the gripping part 3, making it easier to handle the lighting fixture 1 even underwater.

[0047] (2) Regarding each component, including the internal structure of the lighting fixture 1 Next, we will explain each component, including the internal structure of lighting fixture 1, in more detail below, referring to Figure 4.

[0048] (2-1) Regarding the operation unit 25 The operation unit 25 is a component that receives user input and has the function of dimming the light source of its own lighting fixture 1. The operation unit 25 also receives user input and has the function of generating a dimming signal to other lighting fixtures 1 connected via a wired cable and outputting it from the IR transmission unit 22, thereby dimming the light source of the other lighting fixtures 1.

[0049] In this embodiment, it is preferable that the operation unit 25 has a dimmer switch 251 that accepts user input and a control unit 252.

[0050] (i) About the dimmer switch 251 The dimmer switch 251 preferably has one of the following functions: an on / off switch to control an ON / OFF signal, a light intensity change switch to control a signal that specifies the brightness level, a color temperature change switch to control a signal that specifies the color temperature, or a strobe switch to control the timing of light emission. By having a dimmer switch 251 with one of the above functions in the operating unit 25, the lighting fixture can be operated more easily underwater.

[0051] In this embodiment, the various dimming switches 251 (on / off switch, light intensity change switch, color temperature change switch) of the operation unit 25 are arranged on the outer wall of the housing unit 2. This configuration allows the IR receiving unit 23 to efficiently receive optical signals from the wired connection port 24 (optical connector port on the outer wall). Furthermore, this configuration prevents interference between the gripping unit 3 and the IR transmitting unit 22 or IR receiving unit 23, making the lighting fixture 1 easier to handle even underwater. It is also preferable that the IR transmitting unit 22, the IR receiving unit 23, and the various dimming switches 251 of the operation unit 25 are located on the same circumference of the housing unit 2.

[0052] The number of dimmer switches 251 provided in the lighting fixture 1 is preferably two or more, more preferably three or more. Alternatively, the number of dimmer switches 251 provided in the lighting fixture 1 can be approximately five or fewer.

[0053] A more preferred configuration in which the lighting fixture 1 has multiple dimmer switches 251 will be described below. If the lighting fixture 1 has multiple dimmer switches 251, preferably two or more dimmer switches 251, an IR transmitter 22, and an IR receiver 23 are provided on the same circumference of the housing 2. With the above configuration, the IR transmitter 22, IR receiver 23, and dimming switch 251 do not interfere with the gripping part 3, making it easier to handle the lighting device 1 even underwater.

[0054] Furthermore, when two or more dimmer switches 251, IR transmitters 22, and IR receivers 23 are provided on the same circumference of the housing 2, it is preferable that the IR transmitters 22 and IR receivers 23 are provided adjacent to each other. In this specification, "the IR transmitting unit 22 and the IR receiving unit 23 are adjacent" means that, on the perimeter of the housing unit 2, there is no dimming switch 251 between the line segment connecting the IR transmitting unit 22 and the IR receiving unit 23 by the shortest distance. With the above configuration, the IR transmitter 22, IR receiver 23, and dimming switch 251 do not interfere with the gripping part 3, making it easier to handle the lighting device 1 even underwater.

[0055] (ii) Regarding the control unit 252 The control unit 252 preferably has (1) a dimming function for its own light source 26, and / or (2) a function for generating and transmitting dimming signals to other lighting fixtures 1. Here, it is preferable that each of the above functions of the control unit 252 operates in response to user input or dimming signals from other lighting fixtures 1. By adopting the above configuration, it is possible to dim one lighting fixture 1 while simultaneously dimming another lighting fixture 1.

[0056] Furthermore, the control unit 252 may also have a function to receive and control dimming signals transmitted from other lighting fixtures 1.

[0057] Here, "dimming signal" broadly refers to a signal that transmits information for controlling the lighting state of lighting fixture 1. "Dimming signals" include simple ON / OFF signals, signals that specify brightness levels, signals that specify color temperature, signals that specify light emission timing (e.g., strobe synchronization signals), signals that specify flashing patterns, or combinations thereof. In this specification, the control unit 252 may have multiple functions, including control of an ON / OFF signal, control of a signal specifying a brightness level, and control of a signal specifying a color temperature.

[0058] Furthermore, the control unit 252 can also be configured to include an operation display (indicator) function, a battery level determination function, and a temperature detection function.

[0059] In this configuration, where the control unit 252 has a temperature detection function, the lighting fixture 1 may also include a temperature detection unit 253 for detecting temperature.

[0060] In this configuration, where the control unit 252 has an operation indicator function and a battery level determination function, the lighting fixture 1 can be configured to have a display means (for example, an operation indicator light 254) for displaying such control content / determination content.

[0061] (2-2) Regarding light source 26 The light source 26 is a light-emitting diode (LED; LED 262 for lighting). Using a light-emitting diode (LED) as the light source 26 helps to further reduce the heat generated by the entire lighting device. However, there are no particular restrictions on the type of light source 26. Furthermore, it is preferable that the lighting fixture 1 has an LED circuit 261 for transmitting dimming signals for the lighting LEDs 262. And it is preferable that the LED circuit 261 is connected to the control unit 252 mentioned above.

[0062] (2-3) About Repeater 27 (Repeater) It is preferable that the lighting fixture 1 has a repeater 27 (relay device) inside it. In this configuration, it is preferable that the repeater 27 (relay unit) is connected to the IR transmitting unit 22 and the IR receiving unit 23.

[0063] With the above configuration, lighting fixture 1 (corresponding to the first slave unit in Figure 5) can output an input signal from another lighting fixture 1 (corresponding to the master unit in Figure 5) as a dimming signal to another lighting fixture 1 (corresponding to the second slave unit in Figure 5) from the IR transmission unit 22, without going through the control unit 252. With the above configuration, the transmission of the dimming signal from lighting fixture 1 (corresponding to the first slave unit in Figure 5) to another lighting fixture 1 (corresponding to the second slave unit in Figure 5) does not need to go through the control unit 252, and the dimming time lag of each lighting fixture 1 can be reduced.

[0064] The following will explain in more detail how dimming is transmitted to other lighting fixtures 1 in a configuration where the repeater 27 (relay unit) is connected to the IR transmitter 22 and the IR receiver 23, referring to Figure 5.

[0065] (i) Dimming process of the master unit: Dimming instruction reception process S11, dimming process S12 First, as shown in Figure 5, the master lighting fixture 1 (hereinafter simply referred to as the master unit for convenience of explanation) receives user input (dimming instruction reception process S11). Then, the master unit dims the light source of its own lighting fixture 1 and generates a dimming signal for other lighting fixtures 1 (first slave unit in Figure 5), which is output from the IR transmission unit 22 (dimming process S12).

[0066] (ii) Dimming process of the first slave unit: Dimming signal transmission process S21, dimming process S23 Next, the IR receiving unit 23 of the first slave lighting fixture 1 (hereinafter simply referred to as the first slave for the sake of explanation) receives a dimming signal from the master unit. The dimming signal received by the IR receiving unit 23 of the first slave is then output from the IR transmitting unit 22 via the repeater 27 (relay device) (dimming signal transmission process S21). In addition, the control unit 252 of the first slave unit dims the light source of the first slave unit itself according to the dimming signal received by the IR receiver 23.

[0067] (iii) Dimming process of the second slave unit: Dimming signal transmission process S31, dimming process S33 Next, the IR receiving unit 23 of the second slave unit lighting fixture 1 (hereinafter simply referred to as the second slave unit for the sake of explanation) receives a dimming signal from the first slave unit. Then, the control unit 252 of the second slave unit dims the light source of the second slave unit itself according to the dimming signal received by the IR receiving unit 23. Furthermore, the dimming signal received by the IR receiving unit 23 is transmitted via the repeater 27 (relay device) and output from the IR transmitting unit 22 (dimming signal transmission process S31). If a wired connection is established to the third slave unit, the dimming signal will be transmitted to the third slave unit by the same process as in (ii).

[0068] (3) Regarding waterproof wall 4 The lighting fixture 1 of this embodiment, which is an underwater lighting fixture 1, preferably further comprises a light-transmitting waterproof wall 4. Here, the waterproof wall 4 is positioned to close the opening 21 of the housing (see Figures 1 to 3). The light source 26 (not shown) is provided inside the enclosure between the housing and the waterproof wall 4. An underwater lighting fixture 1 having such a configuration is suitable for underwater use because it is a structure that does not allow water to enter. Here, "translucent" in this specification means the property of being able to transmit light. Furthermore, in this specification, "translucent waterproof wall 4" includes both a wall containing a translucent material and a wall containing a transparent material.

[0069] A transparent waterproof wall 4 can preferably be a wall body containing glass material and / or resin material. In particular, a transparent waterproof wall 4 is preferably a wall body containing one or more materials selected from glass, acrylic resin, and polycarbonate resin. Lighting fixture 1, which has a wall made of one or more materials selected from glass, acrylic resin, and polycarbonate resin, is more suitable for underwater use because it has excellent waterproof (water-resistant) and light-transmitting properties.

[0070] (4) Regarding the optical fiber cable 5 (corresponding to the cable in this specification) In this embodiment, the cable has a configuration comprising a cable body 52 for transmitting optical signals and terminals 51 provided at both ends. In the present invention, the above cable is preferably an optical fiber cable 5. Here, there are no particular restrictions on the shape or other aspects of the cable, as long as it enables optical communication by connecting the wired connection port 24 of one lighting fixture 1 to the wired connection port 24 of another lighting fixture 1.

[0071] (5) Regarding the nature of connection The following shows an example of the wired optical communication connection configuration and control method between lighting fixtures 1 in this embodiment.

[0072] (5-1) Regarding daisy-chain connections (see Figure 6(a)) In this embodiment, the daisy-chain connection is a method in which the master unit is connected to the slave units via an optical fiber cable 5, and each slave unit is further connected in a chain to the next slave unit. Based on the input from the operation unit 25 of the master unit, it becomes possible to dim other lighting fixtures 1 synchronized with the master unit.

[0073] (5-2) Regarding link connections (see Figure 6(b)) In this embodiment, the lighting fixtures 1 can be linked together. Here, the link connection is a method of connecting each lighting fixture 1 to each other in a circular manner via optical fiber cables 5. By connecting the lighting fixtures 1 in a ring, all lighting fixtures 1 relay signals to adjacent fixtures, allowing all fixtures to be simultaneously controlled in a synchronized manner when any lighting fixture 1 performs an input (operation). With this configuration, each fixture can function as a master unit, improving the operability of multiple lighting fixtures 1 even underwater.

[0074] (5-3) When the lighting fixture 1 of this embodiment is used in combination with an underwater camera (camera X) (see Figure 7) As shown in Figure 7, when the lighting fixture 1 of this embodiment is used in combination with a camera X, multiple lighting fixtures 1 can be arranged on a light arm with the camera X as the center, and the lighting fixtures 1 can be linked together. With this configuration, operation on either the left or right lighting fixture 1 is propagated to all the ring-connected lighting fixtures 1, and all lighting fixtures 1 can be controlled simultaneously with the same signal. With this configuration, even if the weight or number of lights increases, all lights can be synchronously dimmed by operating a single lighting fixture 1, further improving the efficiency of underwater photography.

[0075] (5-4) When the lighting fixture 1 of this embodiment is used in combination with a 360° underwater camera Z (a camera for omnidirectional shooting) (see Figure 8) As shown in Figure 8, when the lighting fixture 1 of this embodiment is used in combination with a 360° camera Z (omnidirectional camera), multiple lighting fixtures 1 can be arranged with the 360° camera Z (omnidirectional camera) at the center, facing outwards, and the lighting fixtures 1 can be linked together. With this configuration, operation of any lighting fixture 1 propagates around the ring to all lighting fixtures 1, allowing all lighting fixtures 1 to be controlled simultaneously with the same signal. With this configuration, even if the weight or number of lights increases, all lights can be synchronously dimmed with the operation of a single lighting fixture 1, further streamlining the shooting workflow. Furthermore, with this configuration, even with increased light intensity and wide-angle capabilities, all lighting fixtures 1 can be controlled simultaneously with the same signal, resulting in a system configuration that is easy to handle even in VR shooting and special effects shooting. With this configuration, all lights can be synchronously dimmed with the operation of a single lighting fixture 1, further streamlining underwater shooting.

[0076] <2> Lighting fixture set Furthermore, the present invention includes two or more lighting fixtures 1, A cable that enables optical communication by connecting the wired connection port 24 of one lighting fixture 1 to the wired connection port 24 of another lighting fixture 1 via a wired connection, It is also a lighting fixture set that includes [features / equipment].

[0077] Here, the number of lighting fixtures 1 to be connected is preferably 3 or more, more preferably 5 or more, and more preferably 10 or more. However, in this embodiment, there is no particular limit on the number of lighting fixtures 1 to be connected.

[0078] Furthermore, the lighting fixture set of this embodiment does not require a separate remote control, and all lights can be synchronously dimmed by operating a single lighting fixture 1, further improving the efficiency of using the lighting fixture 1 underwater.

[0079] Here, <2> A preferred embodiment of the lighting fixture set can be described by reference to the above description.

[0080] <3> Dimming method for lighting fixture 1 Furthermore, the present invention includes two or more lighting fixtures 1, A cable that enables optical communication by connecting the wired connection port 24 of one lighting fixture 1 to the wired connection port 24 of another lighting fixture 1 via a wired connection, Equipped with, This is also a method of dimming lighting fixtures 1, in which the operation unit 25 of one lighting fixture 1 is used to dim other lighting fixtures 1.

[0081] Here, the number of lighting fixtures 1 to be connected is preferably 3 or more, more preferably 5 or more, and more preferably 10 or more. However, in this embodiment, there is no particular limit on the number of lighting fixtures 1 to be connected.

[0082] Furthermore, the lighting fixture set of this embodiment does not require a separate remote control, and all lights can be synchronously dimmed by operating a single lighting fixture 1, further improving the efficiency of using the lighting fixture 1 underwater.

[0083] Here, <3> A preferred embodiment of the dimming method for the lighting fixture 1 can be described by referring to the above explanation. [Industrial applicability]

[0084] The present invention can be applied, in particular, to underwater lighting fixtures 1. [Explanation of symbols]

[0085] 1 Lighting fixtures 11 Lighting fixture body 2. Enclosure 21 Opening 22 IR Transmitter 23 IR receiver 24 wired connection ports 25 Control section 251 switches 252 Control Unit 253 Temperature detection unit 254 Operation indicator light 26 light source 261 LED circuit 262 LED for lighting 27 Repeat Customers 3 Gripping part 4 waterproof wall 5. Fiber optic cable 51 terminals 52 Cable body X Camera Y Right Arm Z 360° Camera

Claims

1. A lighting fixture comprising a housing portion having an opening and a gripping portion connected to the housing portion, The aforementioned lighting fixture is IR transmission unit, IR receiver unit, An operation unit capable of instructing the IR transmission unit to transmit a dimming signal, It has, A lighting fixture having a wired connection port that enables wired optical communication by connecting the IR transmitting unit and / or the IR receiving unit to another lighting fixture via a cable.

2. An underwater lighting fixture comprising a housing portion having an opening and a gripping portion connected to the housing portion, The aforementioned lighting fixture is IR transmission unit, IR receiver unit, An operation unit capable of instructing the IR transmission unit to transmit a dimming signal, A light-transmitting waterproof wall is positioned to close the opening in the housing portion, It has, An underwater lighting fixture having a wired connection port that enables wired optical communication by connecting the IR transmitting unit and / or the IR receiving unit via a cable to another lighting fixture.

3. The lighting fixture according to claim 1 or 2, wherein the IR transmitting unit and the IR receiving unit are provided on the outer wall of the housing.

4. The aforementioned operating unit includes a dimmer switch, The lighting fixture according to claim 1 or 2, wherein the dimmer switch is provided in the housing.

5. The aforementioned operating unit is equipped with two or more dimmer switches. The lighting fixture according to claim 1 or 2, wherein the dimming switch, IR transmitting unit, and IR receiving unit are provided on the same circumference of the housing.

6. Two or more lighting fixtures as described in claim 1 or 2, A cable that enables optical communication by connecting the wired connection port of one lighting fixture with the wired connection port of another lighting fixture, A lighting fixture set that includes the following features.

7. Two or more lighting fixtures as described in claim 1 or 2, A cable that enables optical communication by connecting the wired connection port of one lighting fixture with the wired connection port of another lighting fixture, Equipped with, A method for dimming lighting fixtures, comprising using the operating section of one of the lighting fixtures to dim another lighting fixture.

Images