JP6883281B2 - Aviation indicator light - Google Patents

Description

Embodiments of the present invention relate to aviation indicator lights.

Aviation indicator lights are embedded in road surfaces such as airport taxiways. The aviation indicator light has an upper light body protruding from the road surface. The upper lamp body is provided with a ceiling portion provided at a position protruding from the road surface and a plurality of inclined portions extending outward from the ceiling portion. A floodlight window is provided between the plurality of inclined portions, and light is emitted through the floodlight window. Further, the plurality of inclined portions are inclined in a direction closer to the road surface toward the peripheral side of the upper lamp body. If the upper lamp body has a ceiling portion and a plurality of inclined portions, the impact when the aircraft gets on the aviation indicator light can be mitigated.
Here, in the case of an aviation indicator light provided at the end of a guideway or the like, it is necessary to irradiate light in the vicinity of the road surface and above the road surface. However, if the ceiling portion is provided, the light directed upward on the road surface is blocked by the ceiling portion, so that it is difficult to irradiate the light above the road surface.
Therefore, it has been desired to develop an aviation indicator light capable of irradiating light near the road surface and above the road surface.

Japanese Unexamined Patent Publication No. 2015-65045

An object to be solved by the present invention is to provide an aviation indicator lamp capable of irradiating light in the vicinity of a road surface and above the road surface.

The aviation indicator light according to the embodiment includes a lower light body; a light source module provided on the lower light body; and an upper light body having a plurality of floodlight windows and covering the light source module. ing. The light source module includes a substrate; a plurality of light emitting elements provided on the substrate; a first reflecting surface provided above the plurality of light emitting elements; and an outside of a region provided with the plurality of light emitting elements. It has a second reflecting surface provided in the above; a lens having a ring shape, the first reflecting surface provided inside, and a first incident surface having a convex inner surface.

According to the embodiment of the present invention, it is possible to provide an aviation indicator lamp capable of irradiating light in the vicinity of the road surface and above the road surface.

It is a schematic plan view for exemplifying the aviation indicator lamp which concerns on this embodiment. It is a schematic cross-sectional view of the aviation indicator lamp in FIG. It is a schematic sectional view of a light source module. It is a schematic cross-sectional view for exemplifying the function of a light source module. It is a schematic cross-sectional view for exemplifying the function of the light source module which concerns on another embodiment.

Hereinafter, embodiments will be illustrated with reference to the drawings. In each drawing, similar components are designated by the same reference numerals and detailed description thereof will be omitted as appropriate.

FIG. 1 is a schematic plan view for exemplifying the aviation indicator light 1 according to the present embodiment.
FIG. 2 is a schematic cross-sectional view of the aviation indicator light 1 in FIG. 1 in the AA line direction.
FIG. 3 is a schematic cross-sectional view of the light source module 30.
As shown in FIGS. 1 and 2, the aviation indicator lamp 1 is provided with an upper lamp body 10, a lower lamp body 20, a light source module 30, a lighting module 40, and an installation portion 50.

The upper lamp body 10 is provided on the lower lamp body 20. The upper lamp body 10 has a plurality of floodlight windows 10a and covers the light source module 30. The planar shape of the upper lamp body 10 is substantially a disk shape.
The upper lamp body 10 has a peripheral edge portion 11, a ceiling portion 12, and a plurality of inclined portions 13.
The peripheral edge portion 11 is provided in the peripheral edge region of the upper lamp body 10. The upper surface of the peripheral edge portion 11 is a flat surface. The peripheral edge portion 11 may have a ring shape. The peripheral edge portion 11 is provided with a plurality of recesses. A screw hole penetrating in the thickness direction is provided on the bottom surface of each of the plurality of recesses. The plurality of screw holes of the peripheral edge portion 11 are provided at positions corresponding to the plurality of screw holes of the lower lamp body 20 and the adjusting ring 52. Bolts and cap nuts inserted into the plurality of screw holes of the lower lamp body 20 and the adjustment ring 52 and the plurality of screw holes of the peripheral portion 11 allow the upper lamp body 10 to enter the adjustment ring 52 via the lower lamp body 20. It is fixed. The adjusting ring 52 may be provided with a plurality of female screws. The plurality of recesses have a depth at which fastening members such as bolts and cap nuts do not protrude from the upper surface of the peripheral edge portion 11.

The ceiling portion 12 is provided in the central region of the upper lamp body 10. The upper surface of the ceiling portion 12 is a flat surface. The ceiling portion 12 is provided above the peripheral edge portion 11. The shape of the ceiling portion 12 is not particularly limited. The shape of the ceiling portion 12 can be, for example, a disk shape.

The peripheral portion 11 and the ceiling portion 12 are different in position in the height direction. Therefore, a plurality of inclined portions 13 are provided. One end of the plurality of inclined portions 13 is connected to the peripheral edge portion 11, and the other end portion is connected to the ceiling portion 12. The plurality of inclined portions 13 are inclined in a direction closer to the road surface 100 toward the peripheral edge portion 11. The upper surfaces of the plurality of inclined portions 13 are inclined surfaces. Each of the plurality of inclined portions 13 has a plate shape and extends radially from the center of the upper lamp body 10 (ceiling portion 12). The plurality of inclined portions 13 can be provided at equal intervals. For example, as illustrated in FIG. 1, six inclined portions 13 can be provided every 60 °.

In a plan view, a gap is provided between the inner peripheral edge of the peripheral edge portion 11 and the outer peripheral edge of the ceiling portion 12. Therefore, the projection window 10a is formed between the adjacent inclined portions 13. The light emitted from the light source module 30 is irradiated to the outside through the plurality of floodlight windows 10a. Since the plurality of floodlight windows 10a are provided at equal intervals around the center of the upper lamp body 10, the aviation indicator lamp 1 can irradiate light in almost all directions. Therefore, even if the operator looks at the aviation indicator light 1 from a random direction, the light emitted from the aviation indicator light 1 can be easily visually recognized.
In addition, three or more light projection windows 10a can be provided around the center of the upper lamp body 10. For example, as illustrated in FIG. 1, six projection windows 10a can be provided around the center of the upper lamp body 10.

If a plurality of inclined portions 13 having an inclined surface are provided, the impact when the aircraft gets on the aviation indicator light 1 can be mitigated. Further, if the plurality of inclined portions 13 are provided radially, even if the aircraft rides on the aviation indicator light 1 from a random direction, the impact can be mitigated. It is also possible to improve the rigidity of the upper lamp body 10.
The material of the upper lamp body 10 can be, for example, a metal such as an aluminum alloy. However, the material of the upper lamp body 10 is not limited to the one illustrated.

The lower lamp body 20 is provided on the bottom surface of a recess that opens on the upper surface of the adjusting ring 52. A plurality of recesses are provided in the peripheral region of the lower lamp body 20. A screw hole penetrating in the thickness direction is provided on the bottom surface of each of the plurality of recesses. A recess 20a is provided on the upper surface of the lower lamp body 20, and a light source module 30 is provided on the bottom surface of the recess 20a. A convex portion 20b is provided on the lower surface of the lower lamp body 20. A recess 20c is provided on the top surface of the convex portion 20b, and a lighting module 40 is provided inside the recess 20c.
The material of the lower lamp body 20 can be, for example, a metal such as an aluminum alloy. However, the material of the lower lamp body 20 is not limited to the one illustrated.

The central axis 30a of the light source module 30 overlaps with the central axis 1a of the aviation indicator light 1. The light source module 30 is provided on the lower lamp body 20.
As shown in FIGS. 2 and 3, the light source module 30 includes a substrate 31, a light emitting element 32, a first reflecting portion 33, a second reflecting portion 34, a lens 35, and a mounting portion 36.
The substrate 31 has a plate shape and is provided on the mounting portion 36. The planar shape of the substrate 31 is not particularly limited. The planar shape of the substrate 31 can be, for example, a polygon such as a circle or a hexagon. A screw hole penetrating in the thickness direction is provided in the center of the substrate 31. The material of the substrate 31 is not particularly limited. The material of the substrate 31 can be, for example, ceramics such as aluminum oxide, a metal plate whose surface is coated with an insulating material, or an organic material such as glass epoxy resin. However, considering the heat dissipation of the heat generated in the light emitting element 32, the material of the substrate 31 is preferably a material having high thermal conductivity. The material having high thermal conductivity can be, for example, ceramics or a metal plate whose surface is coated with an insulating material.

Further, if the reflectance in the peripheral region of the upper surface of the substrate 31 is increased, the substrate 31 can have the function of the second reflecting surface described later. For example, the substrate 31 can be formed from a material having high reflectance such as aluminum oxide, or a film made of a material having high reflectance such as white solder resist can be formed on the upper surface of the substrate 31.

The light emitting element 32 is provided on the upper surface of the substrate 31. The light emitting element 32 is electrically connected to a wiring pattern provided on the upper surface of the substrate 31. The light emitting element 32 can be, for example, a light emitting diode, an organic light emitting diode, a laser diode, or the like. At least one light emitting element 32 can be provided for one floodlight window 10a. That is, a plurality of light emitting elements 32 are provided. The plurality of light emitting elements 32 can be provided on the circumference centered on the center of the substrate 31. The plurality of light emitting elements 32 are connected in series.
The type of the light emitting element 32 is not particularly limited. The light emitting element 32 can be, for example, a surface mount type light emitting element. The light emitting element 32 may be, for example, a light emitting element having a lead wire such as a cannonball type. Further, the light emitting element 32 may be, for example, a chip-shaped light emitting element mounted by a COB (Chip On Board). In this case, if a surface mount type light emitting element or a chip-shaped light emitting element mounted by COB is used, the mounting density can be increased, and the light emitting unit 40 can be downsized.

In the case of a chip-shaped light emitting element 32 mounted by COB, a wiring that electrically connects the light emitting element 32 and the wiring pattern and a sealing portion that has translucency and covers the light emitting element 32 and the wiring. Etc. can be provided on the substrate 31. In this case, the sealing portion can include a phosphor. The phosphor is not particularly limited, and can be appropriately changed so as to obtain a desired emission color.

The first reflecting portion 33 is provided on the mounting portion 36 via the mounting seat 34a and the substrate 31 of the second reflecting portion 34. The external dimensions of the first reflecting portion 33 in the direction orthogonal to the central axis 30a gradually increase toward the upper surface side. The outer shape of the first reflecting portion 33 may be a substantially truncated cone or a substantially truncated cone. The outer surface of the first reflecting portion 33 is the first reflecting surface 33a. The first reflecting surface 33a is an inclined surface that inclines in a direction away from the upper surface of the substrate 31 as the distance from the central axis 30a increases. In this case, the inclined surface can be a curved surface. As will be described later, the light emitted from the light emitting element 32 and directly or indirectly incident on the first reflecting surface 33a is mainly reflected to the side of the substrate 31. The light reflected by the first reflecting surface 33a is irradiated to the vicinity of the road surface 100 by the lens 35.

One first reflection surface 33a may be provided around the central axis 30a, or one may be provided for one projection window 10a. It should be noted that one first reflecting surface 33a illustrated in FIGS. 2 and 3 is provided for one floodlight window 10a. The first reflecting surface 33a is provided above the light emitting element 32. In a plan view (when the light source module 30 is viewed from above), the plurality of light emitting elements 32 overlap with the first reflecting surface 33a. The distance L1 between the outer end of the first reflecting surface 33a and the central axis 30a is longer than the distance L2 between the outer end of the light emitting element 32 and the central axis 30a.

The first reflecting portion 33 may be provided with a recess 33b that opens on the upper surface. A screw hole penetrating in the thickness direction is provided on the bottom surface of the recess 33b. The screw hole is provided at the center of the first reflecting portion 33. The material of the first reflecting portion 33 is not particularly limited. However, it is preferable that the reflectance of the first reflecting surface 33a is high. For example, the first reflecting portion 33 can be formed from a material having a high reflectance such as aluminum, or a film containing a material having a high reflectance such as chromium can be formed on the first reflecting surface 33a.

The second reflecting portion 34 is provided on the mounting portion 36 via the substrate 31. The second reflecting portion 34 has a mounting seat 34a and a peripheral edge portion 34b. The mounting seat 34a has, for example, a disk shape and is provided with a screw hole penetrating in the thickness direction at the center. The substrate 31, the first reflecting portion 33, and the second reflecting portion 34 can be fixed to the mounting portion 36 with screws. The centers of the substrate 31, the first reflecting portion 33, and the second reflecting portion 34 can be provided at the position of the central axis 30a.

The peripheral edge portion 34b is connected to the mounting seat 34a. The upper surface of the peripheral edge portion 34b is a second reflecting surface 34c. The second reflecting surface 34c is an inclined surface that inclines in a direction away from the upper surface of the substrate 31 as the distance from the central axis 30a increases. In this case, the inclined surface can be a curved surface. As will be described later, the light emitted from the light emitting element 32 and directly or indirectly incident on the second reflecting surface 34c is mainly reflected above the substrate 31. The light reflected by the second reflecting surface 34c is irradiated above the road surface 100 by the lens 35.
One second reflecting surface 34c may be provided around the central axis 30a, or one may be provided for one floodlight window 10a. It should be noted that one second reflecting surface 34c illustrated in FIGS. 2 and 3 is provided for one floodlight window 10a. The second reflecting surface 34c is provided outside the region where the plurality of light emitting elements 32 are provided. In a plan view, the second reflecting surface 34c surrounds the plurality of light emitting elements 32. Further, in a plan view, the second reflecting surface 34c can be provided outside the first reflecting surface 33a.

The material of the second reflecting portion 34 is not particularly limited. However, it is preferable that the reflectance of the second reflecting surface 34c is high. For example, the second reflecting portion 34 can be formed from a material having a high reflectance such as aluminum, or a film containing a material having a high reflectance such as chromium can be formed on the second reflecting surface 34c.

The lens 35 can be formed from a translucent material such as glass or a transparent resin. The lens 35 has a ring shape. A first reflecting surface 33a is provided inside the lens 35. The outer shape of the lens 35 is substantially a truncated cone. The outer surface of the lens 35 can be a convex curved surface. The inner surface of the lens 35 has a first incident surface 35a and a second incident surface 35b. The first incident surface 35a is provided in the upper region of the inner surface. The first incident surface 35a can be a convex curved surface. The second incident surface 35b is provided below the first incident surface 35a. The second incident surface 35b is provided near the lower end of the inner surface. The second incident surface 35b can be a concave curved surface. The lower end of the first incident surface 35a and the upper end of the second incident surface 35b are smoothly connected. Light reflected by the first reflecting surface 33a is mainly incident on the first incident surface 35a. Light reflected by the second reflecting surface 34c is mainly incident on the vicinity of the connecting region between the first incident surface 35a and the second incident surface 35b. In this case, the inner surface of the lens 35 may be composed of only the first incident surface 35a. That is, the light reflected by the second reflecting surface 34c may be incident on the vicinity of the lower end of the inner side surface formed of the convex curved surface. However, as shown in FIGS. 4 and 5 described later, if the second incident surface 35b is provided, the light emitted above the road surface 100 can be increased.

FIG. 4 is a schematic cross-sectional view for exemplifying the function of the light source module 30.
As shown in FIG. 4, the light emitted above the light emitting element 32 is reflected by the first reflecting surface 33a to the side of the substrate 31 and is incident on the central region of the first incident surface 35a. The light incident on the central region of the first incident surface 35a is emitted in the vicinity of the road surface 100.
The light emitted to the side of the light emitting element 32 is reflected above the substrate 31 by the second reflecting surface 34c and is incident on the vicinity of the connecting region between the first incident surface 35a and the second incident surface 35b. The light incident on the vicinity of the connecting region between the first incident surface 35a and the second incident surface 35b is emitted above the road surface 100. Further, the light incident on the second incident surface 35b is also emitted above the road surface 100. When the second incident surface 35b is not provided, the light reflected by the second reflecting surface 34c is incident near the lower end of the first incident surface 35a.

FIG. 5 is a schematic cross-sectional view for exemplifying the function of the light source module 30 according to another embodiment.
As described above, if the reflectance in the peripheral region of the upper surface of the substrate 31 is increased, the peripheral region of the upper surface of the substrate 31 can be designated as the second reflective surface 31a. In this case, the second reflecting surface 31a can be a flat surface. Further, the second reflecting portion 34 can be omitted.
As shown in FIG. 5, the light emitted above the light emitting element 32 is reflected by the first reflecting surface 33a to the side of the substrate 31 and is incident on the central region of the first incident surface 35a. The light incident on the central region of the first incident surface 35a is emitted in the vicinity of the road surface 100.
The light emitted to the side of the light emitting element 32 is reflected above the substrate 31 by the second reflecting surface 31a and is incident on the vicinity of the connecting region between the first incident surface 35a and the second incident surface 35b. The light incident on the vicinity of the connecting region between the first incident surface 35a and the second incident surface 35b is emitted above the road surface 100. Further, the light incident on the second incident surface 35b is also emitted above the road surface 100. When the second incident surface 35b is not provided, the light reflected by the second reflecting surface 31a is incident near the lower end of the first incident surface 35a.

As described above, in the case of the aviation indicator light 1 according to the present embodiment, even if the light source module 30 is provided below the ceiling portion 12, light is emitted in the vicinity of the road surface 100 and above the road surface 100. Can be irradiated.

As shown in FIG. 2, the mounting portion 36 is provided on the upper surface of the lower lamp body 20. The mounting portion 36 is provided in the central region of the lower lamp body 20. A female screw for fixing the substrate 31, the first reflecting portion 33, and the second reflecting portion 34 is provided in the center of the upper surface of the mounting portion 36. A plurality of convex portions 36a are provided on the lower surface of the mounting portion 36. The plurality of convex portions 36a have a columnar shape, and female screws are provided at the respective ends. The plurality of convex portions 36a are provided inside the holes provided in the lower lamp body 20. The plurality of convex portions 36a are fixed to a plate 36b provided on the lower surface of the lower lamp body 20.
The material of the mounting portion 36 and the plate 36b can be, for example, a metal such as iron.

The lighting module 40 has an isolation transformer 41 and a circuit board 42.
The isolation transformer 41 is electrically connected to a constant current power supply device provided outside the aviation indicator light 1 via the wiring 41a and the connector 41b. The isolation transformer 41 steps down the AC voltage supplied from the constant current power supply device to a predetermined voltage. The isolation transformer 41 is fixed to the plate 43 fixed to the plate 36b. For example, the isolation transformer 41 can be screwed to the plate 43. The isolation transformer 41 is covered with a cover 44. If the circuit board 42 is provided with a constant voltage circuit or the like, the isolation transformer 41 can be omitted.

The input side of the circuit board 42 is electrically connected to the isolation transformer 41. The output side of the circuit board 42 is electrically connected to the wiring pattern provided on the board 31. The circuit board 42 is fixed to the plate 43 via a spacer. The circuit board 42 is covered with a cover 44. The circuit board 42 has a constant current output circuit that converts an alternating current constant current into a direct current constant current. The circuit board 42 converts an AC constant current stepped down to a predetermined voltage by an isolation transformer 41 into a DC constant current. The converted DC constant current is supplied to the light emitting element 32.

The installation unit 50 is embedded in a road surface 100 such as an airport guideway.
The installation portion 50 has a base portion 51 and an adjustment ring 52.
The appearance of the base 51 is columnar. The base 51 is provided with a recess 51a that opens to one end face. The center of the opening of the recess 51a is provided at the position of the central axis 1a. The convex portion 52a of the adjusting ring 52 is fitted into the opening of the concave portion 51a. A lighting module 40 and the like are housed inside the recess 51a.

The adjusting ring 52 has a cylindrical shape. Both ends of the adjusting ring 52 are open. A convex portion 52a is provided on the end surface of the adjusting ring 52 on the base 51 side. The center of the convex portion 52a is provided at the position of the central axis 1a. By fitting the convex portion 52a of the adjusting ring 52 into the opening of the concave portion 51a of the base portion 51, the adjusting ring 52 is provided concentrically with the base portion 51.

The adjusting ring 52 is provided with a screw hole (not shown). The base 51 is provided with a female screw (not shown). The screw hole of the adjusting ring 52 is provided at a position corresponding to the female screw provided on the base 51. The adjusting ring 52 is screwed to the base 51.
A recess for accommodating the lower lamp body 20 is opened on the upper surface of the adjusting ring 52. A convex portion 20d provided between the lower surface of the lower lamp body 20 and the convex portion 20b is fitted on the bottom surface of the concave portion. When the lower lamp body 20 is attached to the adjustment ring 52, the upper surface of the upper lamp body 10 and the upper surface of the adjustment ring 52 are substantially in the same plane. Further, the upper lamp body 10 is provided concentrically with the adjusting ring 52.
The material of the base 51 and the adjusting ring 52 can be, for example, a metal such as an aluminum alloy. However, the materials of the base 51 and the adjusting ring 52 are not limited to those illustrated.

Although some embodiments of the present invention have been illustrated above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, changes, etc. can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof. Moreover, each of the above-described embodiments can be implemented in combination with each other.

1 Aviation indicator light, 1a central axis, 10 upper light body, 10a floodlight window, 11 peripheral part, 12 ceiling part, 13 inclined part, 20 lower light body, 30 light source module, 30a central axis, 31 board, 31a second Reflective surface, 32 light emitting element, 33 first reflecting part, 33a first reflecting surface, 34 second reflecting part, 34b peripheral part, 34c second reflecting surface, 35 lens, 35a first incident surface, 35b Second incident surface, 40 lighting modules, 50 bases, 100 road surfaces

Claims (6)

With the lower lamp body;
With the light source module provided on the lower lamp body;
With an upper lamp body that has multiple floodlight windows and covers the light source module;
Equipped with
The light source module
With the board;
With a plurality of light emitting elements provided on the substrate;
With a first reflecting surface provided above the plurality of light emitting elements;
With a second reflecting surface provided outside the region provided with the plurality of light emitting elements;
With a lens that has a ring shape, is provided with the first reflecting surface inside, and includes a first incident surface having a convex inner surface;
Aviation sign light with. The aviation indicator lamp according to claim 1, wherein the first reflecting surface is inclined in a direction away from the substrate as the distance from the central axis of the light source module increases. The aviation indicator lamp according to claim 1 or 2, wherein the second reflecting surface is inclined in a direction away from the substrate as the distance from the central axis of the light source module increases. The aviation indicator lamp according to claim 1 or 2, wherein the second reflecting surface is a flat surface. The aviation indicator lamp according to any one of claims 1 to 4, wherein the floodlight window is provided around the center of the upper lamp body in three or more. The aviation indicator lamp according to any one of claims 1 to 5, wherein the inner surface further includes a concave second incident surface provided below the first incident surface.

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