JP6967782B2 - Lighting equipment - Google Patents

Description

The present invention relates to a lighting device, particularly an underwater lighting device.

Through activities such as scuba diving, it is widely practiced to take pictures of living things, natural objects, etc. in the underwater environment. When taking pictures of living things, natural objects, etc. in an underwater environment, a lighting device is used in combination with photography equipment.

An underwater lighting device is required to have a light ray that illuminates a wide range when searching for a fish or the like as a subject, and a light ray with a clear outline that illuminates a narrow range when pointing to a fish or the like. Therefore, for a lighting device used for photography in an underwater environment, a method capable of irradiating a plurality of types of light rays from one lighting device has been required.

As a method for irradiating a plurality of types of light rays from one lighting device, a lighting device provided with two types of light sources having different irradiation ranges is known (see Patent Document 1, FIG. 4).

By the way, prior document 2 describes a technique for reducing unwanted glare caused by light leakage by attaching a magnet (Patent Document 2 representative diagram reference numeral 102) to the center of the lens (Patent Document 2 [0094). ]).

Japanese Unexamined Patent Publication No. 2005-158699 Japanese Unexamined Patent Publication No. 2015-228383

Divers dive while holding various devices such as heavy equipment, light equipment, residual pressure gauges, depth gauges, and compasses. Therefore, the equipment to be brought in during diving has been required to be as small as possible.

The lighting device described in Patent Document 1 causes a difference in the irradiation range of the first light source and the second light source by changing the angle of the light passing through the aperture portion (frame portion). With such a configuration, since two types of light sources are always provided in a wide range, there is a problem that the housing for accommodating the light sources becomes large.

An object of the present invention made in view of the above circumstances is to provide a lighting device having a small housing while maintaining a function of irradiating two types of light rays.
Another object of the present invention is to provide an underwater lighting device having a small housing while maintaining a function of irradiating two types of light rays.

The present invention made in view of the above circumstances is a lighting device in which a first light source and a second light source are provided in a housing having an opening.
A shielding portion for shielding a medium-wide-angle light distribution from the first light source emitted in the direction of the opening of the housing is provided.
The shielding portion is arranged between the first light source and the second light source.
The lighting device is characterized in that the first light source, the shielding portion, and the second light source are provided on substantially the same straight line in the opening direction of the housing.

According to the lighting device of the present invention, since the first light source, the shielding portion, and the second light source are provided on substantially the same straight line in the opening direction of the housing, the function of irradiating two types of light rays is maintained. At the same time, the housing can be made smaller.

Further, the present invention is an underwater lighting device in which a first light source and a second light source are provided in a housing having an opening.
A shielding portion that shields the medium-wide-angle light distribution from the first light source that is irradiated toward the opening of the housing, and a shielding portion.
A translucent waterproof wall arranged to close the opening of the housing,
Equipped with
The shielding portion is arranged between the first light source and the second light source.
The first light source, the shielding portion, and the second light source are provided in substantially the same straight line in the opening direction of the housing, and are provided inside the housing and the waterproof wall. It is also a lighting device, which is characterized by being waterproof.

According to the lighting device of the present invention, since the first light source, the shielding portion, and the second light source are provided on substantially the same straight line in the opening direction of the housing, the function of irradiating two types of light rays is maintained. At the same time, the housing can be made smaller. Further, the lighting device of the present invention is particularly suitable for use in an underwater environment because the first light source, the shielding portion, and the second light source are provided inside surrounded by a housing and a waterproof wall. There is.

Further, in a preferred embodiment of the present invention, the second light source is provided in the shielding portion.
According to the lighting device of such a form, since the second light source is provided in the shielding portion, the second light source can also serve as a part of the shielding portion.

Further, in a preferred embodiment of the present invention, the illuminating device further comprises.
It is provided with one or more support portions for connecting the housing and the shielding portion.
The shielding portion and at least one supporting portion include a heat conductive member.
In such a form of the lighting device, since the shielding portion and at least one supporting portion are provided with the heat conductive member, the heat dissipation of the second light source can be made efficient. Further, in such a form of the lighting device, since the shielding portion and at least one supporting portion are provided with the heat conductive member, the light beam from the first light source is not unnecessarily shielded.

Further, in a preferred embodiment of the present invention, the heat conductive member contains aluminum.

Further, in a preferred embodiment of the present invention, the lighting device further includes switching means.
The switching means is characterized in that it is at least a means for switching between the lighting state of the first light source and the lighting state of the second light source.
Such a form of the illuminating device can instantaneously switch between two types of light rays (first ray A and second ray B) emitted from the illuminating device (see FIG. 3).

The present invention is also a photographing device including the above-mentioned lighting device.

According to the present invention, it is possible to provide a lighting device having a small housing while maintaining a function of irradiating two types of light rays.
Further, according to the preferred embodiment of the present invention, it is possible to provide an underwater lighting device having a small housing while maintaining the function of irradiating two types of light rays.

(A) It is a top view of the lighting apparatus of this Example. (B) It is sectional drawing in the front view of the lighting apparatus of this Example. (A) It is a bottom perspective view of the lighting apparatus of this Example. (B) It is sectional drawing of FIG. 2 (a). (A) It is a schematic diagram which shows the irradiation range of the 1st light source in the front view of the lighting apparatus of this Example. (B) It is a schematic diagram which shows the irradiation range of the 2nd light source in the front view of the lighting apparatus of this Example. It is a reference schematic diagram which shows the light collecting function of the light beam radiated from the 1st light source of this Example.

Hereinafter, the lighting device 1 of the present embodiment will be described, but it goes without saying that the technical scope of the present invention is not limited to the examples.

The lighting device 1 of this embodiment includes a first light source 12, a second light source 13, and a shielding portion 14 in a housing 11 (see FIGS. 1 to 4).
Here, the shielding portion 14 is a member that shields the medium-wide-angle light distribution A2 from the first light source 12 that is irradiated in the direction of the opening 111 of the cylindrical housing 11. The shielding portion 14 is arranged between the first light source 12 and the second light source 13 (see FIGS. 1 to 3).
Further, the first light source 12, the second light source 13, and the shielding portion 14 are provided on substantially the same straight line in the opening 111 direction of the housing 11 (see FIGS. 1 to 3).
By using such a lighting device, the housing can be made smaller while maintaining the function of irradiating two types of light rays (see FIGS. 3 (a) and 3 (b)).

Further, the lighting device 1 of the present embodiment, which is an underwater lighting device, further includes a waterproof wall 16 having translucency.
Here, the waterproof wall 16 is arranged so as to close the opening 111 of the housing 11 (see FIGS. 1 to 3).
The first light source 12, the second light source 13, and the shielding portion 14 are provided inside the housing 11 and the waterproof wall 16 (see FIGS. 1 to 3).
The underwater lighting device 1 having such a configuration is suitable for use in water because it has a structure in which the first light source 12, the shielding portion 14, and the second light source 13 are not flooded.
Further, the lighting device 1 having such a configuration is suitable for use in water because the housing 11 of the lighting device can be made smaller.

Here, "having translucency" in the present specification means a property capable of transmitting the first light ray A and the second light ray B. Further, in the present specification, the term "waterproof wall having translucency" includes the meanings of both a wall body containing a translucent material and a wall body containing a transparent material.

As the waterproof wall 16 having translucency, a wall body containing a glass material and / or a resin material can be preferably mentioned. Above all, it is particularly preferable that the waterproof wall 16 having translucency is a wall body containing one or more materials selected from glass, acrylic resin, and polycarbonate resin.
The lighting device 1 including a wall body containing one or more materials selected from glass, acrylic resin, and polycarbonate resin is excellent in waterproof (water resistance) and translucency, and is therefore more suitable for use in water.

Hereinafter, the first light source 12 of the lighting device 1 of the present embodiment and the first light ray A emitted from the first light source 12 will be described in more detail with reference to FIGS. 1 to 4.

In this embodiment, the first light source 12 is a light emitting diode (LED) having a lens 121 for condensing light (see FIGS. 1 to 3).
Since the first light source 12 is a light emitting diode (LED), the heat generation of the entire lighting device can be further suppressed. However, the type of the light source of the first light source 12 is not particularly limited, and may be, for example, a halogen lamp, an HID lamp, an incandescent lamp, a silica lamp, or a mini krypton lamp.

Regarding the first light source 12, the size and shape of the first light source 12 are not particularly limited. Further, the hue and color temperature of the light rays emitted by the first light source 12 are not particularly limited.

Further, the first light source 12 does not necessarily have to be a single light source, but may be a light source composed of an aggregate of two or more light sources. As a light source composed of an aggregate of two or more light sources, for example, a light source composed of an aggregate of R (red) G (green) B (blue) light emitting diodes can be mentioned.

Next, with reference to FIG. 4, the first light ray A emitted from the first light source 12 will be described.

As shown in FIGS. 1 and 2, the shielding portion 14 and the first light source 12 are provided on substantially the same straight line in the opening 111 direction of the housing 11.
Since the shielding portion 14 and the first light source 12 are provided on substantially the same straight line in the opening 111 direction of the housing 11, the shielding portion 14 is irradiated in the opening 111 direction of the housing 11. Shields the medium-wide-angle light distribution A2 from (see FIG. 4).
Then, the shielding portion 14 shields the medium-wide-angle light distribution A2 emitted from the vicinity of the center of the first light source 12, so that the first light source 12 can irradiate only the first light ray A having a clear outline (FIG. 3 (a), see FIG. 4).

In this embodiment, the shielding portion 14 has a disk shape (see FIG. 1 and FIG. 2). Since the shielding portion 14 has a disk shape, the medium-wide-angle light distribution A2 from the first light source 12 irradiated in the direction of the opening 111 of the housing 11 can be efficiently shielded (see FIGS. 3 and 4). ..

Further, the first light source 12 is provided with a heat radiating plate 122 on the side opposite to the side on which the light projecting surface 1211 is provided. The lighting device 1 having such a form can efficiently discharge the heat generated from the first light source 12.

Further, the first light source 12 is provided with a wiring (lead wire) 123 of the first light source 12 on the side opposite to the side where the light projecting surface 1211 is provided. The lighting device 1 having such a form can efficiently obtain a circuit (wiring) for causing the first light source 12 to emit light.

Hereinafter, the second light source 13 of the lighting device 1 of the present embodiment and the second light ray B emitted from the second light source 13 will be described in more detail with reference to FIGS. 1 to 4.

In this embodiment, the second light source 13 is a light emitting diode (LED) (see FIGS. 1 to 3). Since the second light source 13 is a light emitting diode (LED), the heat generation of the entire lighting device can be further suppressed.

However, the type of the light source of the second light source 13 is not particularly limited, and may be, for example, a halogen lamp, an HID lamp, an incandescent lamp, a silica lamp, or a mini krypton lamp.

Regarding the second light source 13, the size and shape of the second light source 13 are not particularly limited. Further, the hue and color temperature of the light rays emitted by the second light source 13 are not particularly limited.

Further, the second light source 13 does not necessarily have to be a single light source, but may be a light source composed of an aggregate of two or more light sources. As a light source composed of an aggregate of two or more light sources, for example, a light source composed of an aggregate of light emitting diodes having three colors of R (red), G (green), and B (blue) can be mentioned.

The second light source 13 is preferably a light source capable of irradiating a light beam spreading at a wide angle (see FIG. 3B). Since the second light source 13 is a light source capable of irradiating a light beam spreading at a wide angle, the difference in the irradiation range from the first light ray A becomes remarkable, which is more preferable (see FIG. 3).

Further, in this embodiment, the second light source 13 is provided in the shielding portion 14 (see FIG. 1 and FIG. 2). With such a form, the housing 11 of the lighting device 1 can be made smaller.

Here, as shown in FIGS. 1 and 2, the lighting device 1 of the present embodiment has three support portions 15, and the support portion 15 connects the shielding portion 14 and the housing 11. ..
Further, the three support portions 15 have a form extending radially around the shielding portion 14 (see FIGS. 1 (a) and 2 (a)).
With such a configuration, the shielding portion 14 in the lighting device is stabilized. Further, such a configuration is more preferable because the second light source 13 is stable when the second light source 13 is provided in the shielding portion 14.
However, the support portion 15 is not particularly limited in the number, shape, and material of the support portions 15 as long as the support portion 15 connects the shielding portion 14 and the housing 11.

Further, in this embodiment, the shielding portion 14 and the supporting portion 15 are provided with a heat conductive member 17 on the opposite side of the side where the second light source 13 is arranged.
Here, in the present specification, the "heat conductive member 17" refers to a member having at least heat conductivity.
The lighting device 1 having such a form can efficiently discharge the heat generated from the second light source. Further, in such a form, the heat conductive member 17 does not unnecessarily shield the light rays from the first light source.

In particular, an underwater lighting device (see FIGS. 1 to 4) that must be provided with a waterproof wall in the housing 11 cannot discharge heat from the opening 111 of the housing 11. Therefore, in the case of an underwater lighting device, it is particularly desirable that the shielding portion 14 and the supporting portion 15 are provided with the heat conductive member 17.

Here, the heat conductive member 17 is preferably a material containing a metal. Among them, a material containing aluminum can be preferably mentioned.
Since the heat conductive member 17 is made of a material containing aluminum, the lighting device 1 can be manufactured at a lower cost.

In this embodiment, all the support portions 15 are provided with the heat conductive member 17.
However, it is not necessary that all the support portions 15 are provided with the heat conductive member 17, and it is sufficient that at least one support portion 15 is provided with the heat conductive member 17.

Further, in this embodiment, the heat conductive member 17 is provided on the opposite side to the side where the second light source 13 is arranged.
However, the heat conductive member 17 does not have to be provided on the side opposite to the side where the second light source 13 is arranged, and the heat conductive member 17 may be provided with at least one support portion 15. Just do it.

The heat conductive member 17, the shielding portion 14, and at least one supporting portion 15 may be integrally molded.

Next, the second light beam B emitted from the second light source 13 will be described with reference to FIGS. 1 to 3.

As shown in FIGS. 1 to 3, the shielding portion 14 is arranged between the first light source 12 and the second light source 13. Here, since the shielding portion 14 is arranged between the first light source 12 and the second light source 13, the light rays (first ray A and medium wide-angle light distribution A2) from the first light source 12 are arranged in the shielding portion. While being shielded, the light beam from the second light source 13 (second light ray B) is not shielded by the shielding portion 14 (see FIGS. 3 (a) and 3 (b)).
Then, the light rays from the first light source 12 (first light rays A and medium wide angle light distribution A2) are shielded by the shielding portion, and the light rays from the second light source 13 (second rays B) are shielded by the shielding portion 14. Since the second ray B is not affected by the light, the second ray B has a wider range than the first ray A (see FIGS. 3 (a) and 3 (b)).

Hereinafter, a more preferable embodiment of the lighting device 1 of this embodiment will be described.

The lighting device 1 of the present embodiment includes a changeover switch in which the lighting state of the first light source 12, the lighting state of the second light source 13, and the extinguishing state are set.
The lighting device 1 having such a form can instantaneously switch between two types of light rays (first light ray A and second light ray B) emitted from the lighting device 1 (see FIG. 3).

However, the means for switching the lighting state of the lighting device does not necessarily have to be a changeover switch in which the above three states are set, and at least the lighting state of the first light source 12 and the lighting state of the second light source 13 can be switched. Any switching means that can be used is sufficient.

Further, it is more preferable that the present invention further includes a power supply unit 18.

Further, the present invention is more preferably in the form of a photographing device provided with the lighting device 1 of the above-mentioned form. With such a form, it is possible to easily switch the irradiation range when shooting underwater.
Further, in the photographing device provided with the lighting device 1 of the above-described embodiment, the housing 11 of the lighting device can be made small, so that the lighting device does not easily interfere with the photographing.

In this embodiment, the lighting device 1 is formed by combining different parts. However, in the lighting device of the present invention, a plurality of parts may be integrally molded as needed.

The present invention can be applied to a lighting device.

1 Lighting device 11 Housing 111 Opening 12 First light source 121 Lens 1211 Floodlight surface 122 Heat dissipation board 123 Wiring (lead wire)
13 Second light source 14 Shielding part 15 Support part 16 Waterproof wall 17 Thermally conductive member 18 Power supply part A First ray A2 Medium wide-angle light distribution B Second ray

Claims (7)

A lighting device in which a first light source and a second light source are provided in a housing having an opening.
A shielding portion for shielding a medium-wide-angle light distribution from the first light source emitted in the direction of the opening of the housing is provided.
The shielding portion is arranged between the first light source and the second light source.
A lighting device, wherein the first light source, the shielding portion, and the second light source are provided on substantially the same straight line in the opening direction of the housing. An underwater lighting device in which a first light source and a second light source are provided in a housing having an opening.
A shielding portion that shields the medium-wide-angle light distribution from the first light source that is irradiated toward the opening of the housing, and a shielding portion.
A translucent waterproof wall arranged to close the opening of the housing,
Equipped with
The shielding portion is arranged between the first light source and the second light source.
The first light source, the shielding portion, and the second light source are provided in substantially the same straight line in the opening direction of the housing, and are provided inside the housing and the waterproof wall. A lighting device characterized by being. The lighting device according to claim 1 or 2, wherein the second light source is provided in the shielding portion. The illuminating device further
It is provided with one or more support portions for connecting the housing and the shielding portion.
The lighting device according to any one of claims 1 to 3, wherein the shielding portion and at least one support portion include a heat conductive member. The lighting device according to claim 4, wherein the heat conductive member contains aluminum. The illuminating device further comprises a switching means.
The lighting device according to any one of claims 1 to 5, wherein the switching means is a means for switching at least a lighting state of the first light source and a lighting state of the second light source. .. An imaging device comprising the lighting device according to any one of claims 1 to 6.

Images