JP2023142456A - Led illumination device - Google Patents

Abstract

To provide an LED illumination device with a camera capable of efficiently determining a photographing range.SOLUTION: The LED illumination device includes an illumination part and an imaging part 3. The illumination part includes a straight tube lamp 21 and a base part 23 provided at the end of the straight tube lamp. The imaging part 3 includes a camera storage part 31 provided between the straight tube lamp 21 and the base part 23 and a camera 32 stored in the camera storage part 31. The camera storage part 31 is freely rotatable in a circumferential direction with respect to the axial center C of the straight tube lamp 21. The camera 32 includes a lens 321 having an optical axis passing through a virtual line L2 extending in an orthogonal direction with respect to the axial center C of the straight tube lamp 21. The lens 321 is movable so as to change the angle of the optical axis with respect to the virtual line L2 in the circumferential direction of the axial center C of the straight tube lamp 21.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to an LED lighting device with a camera.

In recent years, there has been a trend for surveillance cameras to be installed inside railway vehicles for the purpose of suppressing the occurrence of crimes and troubles, as well as early detection of crimes and troubles, and accurate situational understanding.

Japanese Patent No. 6810106 (Patent Document 1) discloses a cabin LED tube camera system. The cabin LED tube camera system includes a straight glass tube, a unit cover provided at the inner end of the glass straight tube so as to be continuous on a virtual horizontal axis, and an inner end of the glass straight tube provided with the unit cover. has a base provided at the opposite outer end. The unit cover houses a control unit including a power supply section, a control circuit, an imaging section, and a wireless communication section. The imaging unit includes a camera. The camera has a wide-angle lens with a horizontal angle of view of 140° to 180° in a direction parallel to the virtual horizontal axis and a vertical angle of view of 90° to 180° in a direction perpendicular to the virtual horizontal axis. The imaging optical axis of the camera has an inclination angle of 40° to 45° with respect to a perpendicular passing through the virtual horizontal axis. Thereby, the cabin LED tube type camera system can photograph a relatively wide area within the cabin.

Patent No. 6810106

However, in the cabin LED tube camera system, the imaging optical axis of the camera is inclined at 40° to 45° with respect to the perpendicular line passing through the virtual horizontal axis. Therefore, for example, when a glass straight pipe and a unit cover are installed near the ceiling in a guest room, if the vertical angle of view of the wide-angle lens is relatively wide, such as 180°, part of the ceiling may be photographed. Also, obstacles such as poles or handrails for hanging straps installed in the cabin may be photographed in a large size, resulting in waste in the photographing range. That is, the cabin LED tube type camera system may not be able to efficiently take pictures over a relatively wide shooting range.

Therefore, an object of the present disclosure is to provide an LED lighting device with a camera that can efficiently determine the imaging range of the camera.

In order to solve the above problems, the present disclosure is configured as follows. That is, the LED lighting device according to the present disclosure may include an illumination section and an imaging section. The illumination unit may include a straight tube lamp and a base provided at an end of the straight tube lamp. The imaging section may include a camera accommodating section provided between the straight tube lamp and the base section, and a camera accommodated in the camera accommodating section. The camera accommodating portion may be rotatable in the circumferential direction with respect to the axis of the straight tube lamp. The camera may include a lens having an optical axis passing through an imaginary line extending perpendicularly to the axis of the straight tube lamp. The lens may be movable in the circumferential direction of the axis of the straight tube lamp so as to change the angle of the optical axis with respect to the imaginary line.

Thereby, the photographing range of the camera can be determined efficiently.

The lens may be movable to change the angle of the optical axis with respect to the imaginary line in the horizontal direction of the axis of the straight tube lamp. Thereby, the photographing range of the camera can be determined more efficiently.

The camera accommodating portion may rotate at an angle of −60° to 60° in the circumferential direction of the axis with respect to a perpendicular line passing through the axis of the straight tube lamp. The lens may be movable in the circumferential direction of the axis of the straight tube lamp so as to change the angle of the optical axis with respect to the imaginary line within a range of −60° to 60°. The lens may be movable so as to change the angle of the optical axis with respect to the imaginary line in the horizontal direction of the axis of the straight tube lamp within a range of −60° to 60°. A plurality of LED lighting devices are usually installed inside a building or a vehicle. By changing the angle of the camera accommodating part and the angle of the optical axis of the lens in the range of -60° to 60°, it is possible to suppress the overlap of the photographing ranges of the cameras installed in each LED lighting device and improve efficiency. The shooting range of each camera can be determined automatically.

The lens may be a fisheye lens. Even with a lens having a relatively wide angle of view, such as a fisheye lens, the shooting range of the camera can be determined efficiently.

According to the LED lighting device of the present disclosure, it is possible to efficiently determine the imaging range.

FIG. 1 is a plan view of the LED lighting device according to the first embodiment. FIG. 2 is a perspective view of the imaging section shown in FIG. 1. FIG. 3 is a left side view of the imaging section shown in FIG. 1. FIG. 4 is a plan view of the imaging section shown in FIG. 1.

Hereinafter, an LED lighting device 1 according to an embodiment of the present disclosure will be specifically described using FIGS. 1 to 4. As shown in FIG. 1, the LED lighting device 1 includes a lighting section 2 and an imaging section 3. The LED lighting device 1 is attached to a ceiling or wall of a building, a vehicle, or the like.

The illumination section 2 includes a straight tube lamp 21, a cap section 22, and a cap section 23.

The straight tube lamp 21 is a straight tube type LED lamp. The straight tube lamp 21 includes a light-transmitting cover and an LED housed within the light-transmitting cover, although this will not be described in detail.

The base portion 22 is provided at one end of the straight tube lamp 21. That is, it can be said that the base portion 22 is one tip of the illumination portion 2. The base portion 22 has a pin terminal 221. The pin terminal 221 is inserted and fixed into a socket of a lighting device main body (not shown) installed on a surface to which the LED lighting device 1 is attached, such as a ceiling. Thereby, the LED is connected to a power source (not shown).

The base portion 23 is provided at the other end of the straight tube lamp 21. That is, it can be said that the base portion 23 is the other tip portion of the illumination portion 2. The base portion 23 has a dummy terminal 231. Dummy terminal 231 is not connected to a power source. The dummy terminal 231 is used to fix the LED lighting device 1 to the lighting device main body (not shown). Further, the dummy terminal 231 may function as a ground.

As shown in FIG. 2, the imaging section 3 includes a camera accommodating section 31 and a camera 32 accommodated in the camera accommodating section 31.

The camera accommodating part 31 is pivotally supported by the illumination part 2 so as to rotate in the circumferential direction with respect to the axis C of the straight tube lamp 21. The camera accommodating part 31 only needs to be able to rotate in the circumferential direction with respect to the axis C of the straight tube lamp 21, and there are no particular limitations on how it is pivotally supported by the illumination part 2. The camera accommodating portion 31 has a rotation angle of −60° to 60° in the circumferential direction with respect to a perpendicular line L1 passing through the axis C. Thereby, it is possible to photograph a relatively wide range inside a building, a vehicle, or the like. In addition, here, the counterclockwise direction shown in the figure is defined as a positive angle, and the clockwise direction is defined as a negative angle. The rotation angle of the camera accommodating section 31 is not limited to this, and may be variously changed depending on the indoor area or interior of the building or vehicle. A plurality of LED lighting devices 1 are installed inside a building, a vehicle, or the like. For example, in a railway vehicle, an LED lighting device 1 is installed on each of the left and right sides of the ceiling in the vehicle interior with respect to the traveling direction of the vehicle. The angle of the camera accommodating portion 31 with respect to the perpendicular line L1 can be appropriately determined so that the cameras 32 of the LED lighting device 1 installed on the left and right sides can uniformly photograph the inside of the cabin. For example, the angle of the camera accommodating portion 31 with respect to the perpendicular line L1 may be fixed at 15° intervals. Note that the camera accommodating section 31 also accommodates a control circuit for controlling the camera 32 and the like.

Camera 32 has a lens 321. The main body of the camera 32 is housed in the camera housing section 31. The lens 321 is exposed through a through hole provided in the camera housing section 31. Lens 321 is a fisheye lens. Note that the lens 321 may be appropriately selected from various camera lenses such as standard lenses. However, from the viewpoint of photographing a building or the interior of a vehicle over a relatively wide range, the lens 321 is preferably a wide-angle lens, and more preferably a fisheye lens. Note that a fisheye lens generally has an angle of view of 180°. The lens 321 has an optical axis passing through an imaginary line L2 extending perpendicularly to the axis C of the straight tube lamp 21. Note that the camera 32 is electrically connected to the straight tube lamp 21. Thereby, the camera 32 secures power.

As shown in FIG. 3, the lens 321 is movable in the circumferential direction of the axis C of the straight tube lamp 21 so that the angle of the optical axis with respect to the virtual line L2 can be changed. The angle of the optical axis can be changed in the range of -60° to 60° with respect to the virtual line L2. That is, the lens 321 is movable in the circumferential direction of the axis C of the straight tube lamp 21 so as to change the angle of the optical axis with respect to the virtual line L2 within a range of −60° to 60°. The variable angle of the lens 321 in the circumferential direction is not limited to this, and may be changed in various ways depending on the interior area or interior of a building or vehicle.

For example, as shown in FIG. 3, when the camera housing section 31 is fixed at an angle of 45 degrees with respect to the perpendicular line L1, the angle of the optical axis of the lens 321 is set to -45 degrees with respect to the imaginary line L2. . Then, when the LED lighting device 1 is installed so that the axis C of the straight tube lamp 21 is parallel to the indoor ceiling, the optical axis of the lens 321 points downward in a direction perpendicular to the ceiling. As a result, even when a fisheye lens with a relatively wide angle of view is used as the lens 321, the interior of the room can be efficiently photographed without including the ceiling in the photographing range. For example, if there is an obstacle such as a pole or handrail for suspending straps in a railway vehicle directly below the axis C of the straight tube lamp 21, the camera housing section 31 may be placed at an angle of 45 degrees with respect to the perpendicular line L1. By fixing the angle and setting the angle of the optical axis of the lens 321 to −45° with respect to the virtual line L2, it is possible to avoid photographing an obstacle in the center of the photographing range. In this way, by changing the angles of the optical axes of the camera accommodating section 31 and the lens 321, even with a fisheye lens having a relatively wide angle of view, it is possible to efficiently take pictures by avoiding unnecessary shooting ranges and obstacles. The range can be determined.

As shown in FIG. 4, the lens 321 is movable in the horizontal direction of the axis C of the straight tube lamp 21 so as to be able to change the angle of the optical axis with respect to the virtual line L2. Here, the horizontal direction is a direction along a plane including the axis C. The angle of the optical axis can be changed in the range of -60° to 60° with respect to the virtual line L2. That is, the lens 321 is movable in the horizontal direction of the axis C of the straight tube lamp 21 so as to change the angle of the optical axis with respect to the virtual line L2 within a range of −60° to 60°. In addition, here, the counterclockwise direction shown in the figure is defined as a positive angle, and the clockwise direction is defined as a negative angle. The variable angle of the lens 321 in the circumferential direction is not limited to this, and may be changed in various ways depending on the interior area or interior of a building or vehicle. Thereby, even if the photographing range of the camera 32 is widened in the horizontal direction, obstacles etc. can be avoided and the photographing range can be efficiently determined.

As described above, a plurality of LED lighting devices 1 are installed inside a building or a vehicle. By changing the circumferential angle of the camera accommodating portion 31 and the circumferential angle and horizontal angle of the optical axis of the lens 321 in the range of -60° to 60°, It is possible to prevent the photographing ranges of the cameras 32 from overlapping each other, to photograph a desired photographing range without waste, and to efficiently determine the photographing range of each camera 32.

The rotation of the camera housing section 31 and the movement of the lens 321 may be performed manually or by remote control. Further, the lens 321 may be controlled to automatically face downward in the perpendicular direction with respect to the rotation of the camera housing section 31.

Although the embodiments have been described above, the present disclosure is not limited to the embodiments described above, and various changes can be made without departing from the spirit thereof.

1 LED lighting device 2 Illumination section 21 Straight tube lamp 22 Base section 23 Base section 3 Imaging section 31 Camera housing section 32 Camera 321 Lens C Axis center L1 Perpendicular line L2 Virtual line

Claims (4)

An LED lighting device comprising an illumination section and an imaging section,
The lighting section includes a straight tube lamp and a cap section provided at an end of the straight tube lamp,
The imaging unit includes a camera accommodating part provided between the straight tube lamp and the base part, and a camera accommodated in the camera accommodating part,
The camera accommodating portion is rotatable in a circumferential direction with respect to the axis of the straight tube lamp,
The camera includes a lens having an optical axis passing through an imaginary line extending perpendicularly to the axis of the straight tube lamp,
The lens is movable in the circumferential direction of the axis of the straight tube lamp so as to change the angle of the optical axis with respect to the virtual line. The LED lighting device according to claim 1,
The lens is movable in a horizontal direction of the axis of the straight tube lamp so as to change the angle of the optical axis with respect to the virtual line. The LED lighting device according to claim 2,
The camera accommodating portion rotates at an angle of -60° to 60° in the circumferential direction of the axis with respect to a perpendicular line passing through the axis of the straight tube lamp,
The lens is movable in a circumferential direction of the axial center of the straight tube lamp so as to change the angle of the optical axis with respect to the imaginary line within a range of -60° to 60°, and An LED lighting device that is movable in a horizontal direction so as to change the angle of the optical axis with respect to the virtual line within a range of -60° to 60°. The LED lighting device according to any one of claims 1 to 3,
In the LED lighting device, the lens is a fisheye lens.

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