LED flashlight source and runway-mounted flashlight device

Abstract

To provide a novel runway-mounted flashlight device that is light-weight, has a long service life, has high effective brightness, can switch the brightness, has small power consumption, and has excellent impact resistance.SOLUTION: An LED flashlight source 10 for a runway-mounted flashlight device of the present invention comprises an LED module 11, a plate-shaped mounting plate 12, a lens member 13, and an impact absorption sheet. The lens member 13 is attached to a hollow portion within a frame of the frame-shaped mounting plate 12. The lens member 13 provides a uniform brightness distribution on an irradiation surface of flashlight emitted from an LED 11b. The impact absorption sheet includes a lower impact absorption sheet 14a and an upper impact absorption sheet 14b. The lower impact absorption sheet 14a is arranged on the LED module 11. The frame-shaped mounting plate 12, to which the lens member 13 is attached, is arranged on the lower impact absorption sheet 14a. The upper impact absorption sheet 14b is arranged on the frame-shaped mounting plate 12.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an LED flashlight source and a runway-embedded flashlight device. [Background technology]

[0002] Conventionally, marker lights that emit beacon light have been buried under the road surface as guide signs for aviation runways (see, for example, Patent Document 1). These recessed marker lights buried under the road surface sometimes use discharge lamps containing xenon as a flashing light source. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-228103 Summary of the Invention [Problem to be solved by the invention]

[0004] However, flash devices using xenon flash sources have problems such as being heavy, having a short lifespan, low effective luminous intensity, not being able to switch between high, medium and low luminous intensities, and consuming large amounts of power.Furthermore, there is a risk that the flash source of runway-mounted flash devices may be damaged by the impact of an aircraft landing.

[0005] Therefore, an object of the present invention is to provide a new flash light source for a runway-embedded flash device that is lightweight, has a long life, has high effective luminous intensity, is switchable in luminous intensity, consumes little power, and has excellent impact resistance. [Means for solving the problem]

[0006] In order to achieve the above object, the LED flashlight source for a runway embedded flashlight device of the present invention comprises: The LED module includes a frame-shaped mounting plate, a lens member, and a shock-absorbing sheet. The lens member is attached to a hollow portion within the frame of the frame-shaped mounting plate, the lens member is a lens member that makes the luminance distribution of the flash of light emitted from the LED uniform on the irradiated surface, the shock absorbing sheet includes a lower shock absorbing sheet and an upper shock absorbing sheet, The lower shock-absorbing sheet is disposed on the LED module, the frame-shaped mounting plate to which the lens member is attached is disposed on the lower impact absorbing sheet; The upper impact absorbing sheet is disposed on the frame-shaped mounting plate. It is characterized by: [Effects of the Invention]

[0007] The LED flashlight source for a runway-embedded flashlight device of the present invention is lightweight, has a long life, has high effective luminous intensity, is switchable in luminous intensity, consumes little power, and is highly impact-resistant. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1(A) is a partially enlarged perspective view showing an example of an LED flashlight source for a runway-embedded flashlight device of embodiment 1, and FIG. 1(B) is a schematic side view of the LED flashlight source shown in FIG. 1(A). [Figure 2] FIG. 2 is an exploded perspective view showing the configuration of an example of a runway-embedded flash device according to the second embodiment. [Figure 3] FIG. 3 is a perspective view from above showing an example of a cylindrical main body and a ceiling member in a runway-embedded flash device of the second embodiment. [Figure 4] FIG. 4 is a perspective view from below showing an example of the cylindrical main body and ceiling member of the runway-embedded flash device of the second embodiment. [Figure 5] FIG. 5 is a perspective view from below showing an example of a cylindrical main body, a ceiling member, and a heat-conducting member in a runway-embedded flashlight device of the second embodiment. [Figure 6] FIG. 6 is an exploded perspective view showing an example of the configuration of a runway-embedded flash device according to the third embodiment. [Figure 7]FIG. 7 is a perspective view of the runway-embedded flash device shown in FIG. 6, seen from below. [Figure 8] FIG. 8 is a side view showing an example of the bottom cover member of the runway-embedded flash device of the third embodiment. [Figure 9] FIG. 9 is a schematic perspective view showing an example of the configuration of a runway according to the fourth embodiment. [Figure 10] FIG. 10 is a schematic side view illustrating flash irradiation in the runway-embedded flash device of the second embodiment. [Figure 11] FIG. 11 is a side view showing an example of a light guide member and an LED flashlight source inside the runway-embedded flashlight device shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Next, embodiments of the present invention will be described with reference to Figs. 1 to 11. The present invention is not limited or restricted in any way by the following embodiments. In Figs. 1 to 11, the same parts are denoted by the same reference numerals. The descriptions of the embodiments can be mutually incorporated. In addition, for the sake of convenience, the structures of the parts are shown in simplified form in the drawings, and the dimensional ratios of the parts may be shown schematically and different from the actual ones.

[0010] [Embodiment 1] FIG. 1(A) is a partially enlarged perspective view showing the configuration of an example of an LED flashlight source for a runway-embedded flashlight device according to this embodiment, and FIG. 1(B) is a schematic side view of the LED flashlight source shown in FIG. 1(A). Note that FIG. 1(B) perspectively shows a frame-shaped mounting plate 12, an impact-absorbing sheet, and a hollow portion within the frame of a frame-shaped pressing plate 15, which will be described later. As shown in FIGS. 1(A) and 1(B), the LED flashlight source 10 includes an LED module 11, a frame-shaped mounting plate 12, a lens member 13, and an impact-absorbing sheet. Details of the impact-absorbing sheet will be described later.

[0011] The LED module 11 includes, for example, a substrate 11a and an LED 11b, as shown in FIG. 1(B), with the LED 11b disposed on the substrate 11a.

[0012] The conditions for mounting the LEDs 11b on the substrate 11a are not particularly limited and can be set appropriately depending on the desired optical characteristics. Figures 1(A) and 1(B) show an example in which 72 LEDs 11b are mounted on the substrate 11a in two rows and columns of 4 × 9 = 36 LEDs.

[0013] The shape of the LED 11b is not particularly limited, and is generally square or rectangular. The size of the LED 11b is also not particularly limited, and if it is square, the length of one side is, for example, 1.8 to 2.2 mm, 3 to 3.5 mm, or 4 to 5.3 mm. If it is rectangular, the length of the short side is, for example, the same as the length of the square, and the ratio of the short side to the long side is, for example, 1:1 to 3. On the mounting surface of the LED 11b of the substrate 11a, the width between adjacent LEDs is, for example, 0.2 to 0.5 mm.

[0014] In the LED flashlight source 10 of this embodiment, a lens member 13 is attached to a hollow portion within the frame of a frame-shaped mounting plate 12. Examples of materials for the frame-shaped mounting plate 12 include stainless steel, aluminum, and titanium. The thickness of the frame-shaped mounting plate 12 is, for example, 0.2 to 2 mm, or 0.3 mm.

[0015] Lens member 13 is a lens member that provides a uniform illuminance distribution to the surface irradiated with the flash of light emitted from LED 11b. Examples of lens member 13 include a fly-eye lens and an integrator lens. For example, as shown in FIG. 1(B), by dividing lens member 13 into two or more pieces so that it is not too large, the load on lens member 13 can be further reduced and damage can be prevented. It is preferable that lens member 13 not be too small so that there is no loss in extracting the irradiated flash of light.

[0016] The shock absorbing sheet includes a lower shock absorbing sheet 14a and an upper shock absorbing sheet 14b, with the lower shock absorbing sheet 14a disposed on the LED module 11, a frame-shaped mounting plate 12 with a lens member 13 attached thereto disposed on the lower shock absorbing sheet 14a, and the upper shock absorbing sheet 14b disposed on the frame-shaped mounting plate 12. The lower shock absorbing sheet 14a and the upper shock absorbing sheet 14b are each, for example, frame-shaped, with the lower shock absorbing sheet 14a having a thickness of, for example, 0.2 to 3 mm, and the upper shock absorbing sheet 14b having a thickness of, for example, 0.2 to 3 mm. Conventional shock absorbing sheets may be used as the lower shock absorbing sheet 14a and the upper shock absorbing sheet 14b. According to LED flashlight source 10 of this embodiment, shock-absorbing sheets are placed on the upper and lower sides of frame-shaped mounting plate 12 to which lens member 13 is attached, thereby suppressing vibration of frame-shaped mounting plate 12 caused by the impact of being run over by an airplane tire, and as a result, preventing damage such as the lens member 13 popping out. Thus, LED flashlight source 10 of this embodiment has excellent shock resistance.

[0017] 1(A) and 1(B), the LED flashlight source 10 of this embodiment may further include a frame-shaped presser plate 15, which is disposed on the upper impact-absorbing sheet 14b, and which fixes the frame-shaped mounting plate 12 to the LED module 11. Examples of materials for the frame-shaped presser plate 15 include stainless steel, aluminum, and titanium. The thickness of the frame-shaped presser plate 15 is, for example, 0.2 to 3 mm, or 0.8 mm. The frame-shaped presser plate 15 is fixed to the LED module 11 using screws, for example.

[0018] The LED flashlight source 10 of this embodiment may further include a heat dissipation member. Details of the heat dissipation member will be described later in the second embodiment.

[0019] The LED flashlight 10 of this embodiment is lighter than the xenon flashlight for a runway-embedded flashlight device. Thus, this embodiment can provide a lightweight flashlight for a runway-embedded flashlight device.

[0020] While the lifespan of a xenon flashlight source for a runway-embedded flashlight device is about 500 hours, the LED flashlight source 10 for a runway-embedded flashlight device of this embodiment can be used indefinitely, for example. In this way, according to this embodiment, it is possible to provide a long-life flashlight source for a runway-embedded flashlight device.

[0021] Whereas the effective luminous intensity of xenon flashlight sources for runway-embedded flashlight devices is 1000 cd or more, specifically about 1200 cd, the effective luminous intensity of LED flashlight source 10 for runway-embedded flashlight devices of this embodiment is, for example, 6000 cd or more, specifically about 7000 cd. Thus, according to this embodiment, it is possible to provide a flashlight source for runway-embedded flashlight devices with high effective luminous intensity.

[0022] Xenon flashlight sources for runway-embedded flashlight devices cannot switch the luminous intensity between high, medium, and low, whereas the LED flashlight source 10 for runway-embedded flashlight devices of this embodiment has a high effective luminous intensity as described above, and therefore can switch the luminous intensity between, for example, high (e.g., 6000 cd or more), medium (e.g., 1000 cd or more), and low (e.g., 250 cd or more). Thus, this embodiment can provide a flashlight source for runway-embedded flashlight devices that can switch luminous intensities. The high luminous intensity is used, for example, during the day when visibility is poor due to fog or rain, the low luminous intensity is used, for example, at night, and the medium luminous intensity is used, for example, in the evening.

[0023] While the power consumption of a flash device using a xenon flash source is about 500 W, the power consumption of the LED flash source 10 for a runway-embedded flash device of this embodiment is, for example, about 80 W (maximum 114 W at high intensity, 31 W at medium intensity, and 24 W at low intensity). Thus, according to this embodiment, it is possible to provide a flash source for a runway-embedded flash device that consumes little power.

[0024] [Embodiment 2] 2 is an exploded perspective view showing an example of the configuration of a runway-embedded flash device of this embodiment. As shown in FIG. 2, a runway-embedded flash device 20 includes a cylindrical main body 21, a ceiling member 22, a light-guiding member 23, and an LED flashlight source 10.

[0025] The cylindrical main body 21 can be embedded in the runway 30, as will be described later in the fourth embodiment with reference to Fig. 9. The cylindrical main body 21 may be cylindrical, for example, as shown in Fig. 2, or may have a cylindrical shape other than a cylindrical shape, such as an elliptical cylinder or a rectangular cylinder.

[0026] When the cylindrical body 21 is embedded in the runway 30, the ceiling member 22 is arranged in the upper opening of the cylindrical body 21 in a state where it can be exposed to the runway surface.

[0027] The cylindrical main body 21 and the ceiling member 22 may be separate and independent members as shown in Fig. 2, or may be an integrally molded product as shown in Fig. 3. Examples of the integrally molded product include aluminum castings, titanium castings, aluminum alloy castings, and titanium alloy castings, with aluminum castings and titanium castings being preferred because of their light weight, and aluminum castings being particularly preferred because of their low cost. Even when the cylindrical main body 21 and the ceiling member 22 are separate members, the cylindrical main body 21 and the ceiling member 22 may be, as in the case of the integrally molded product, examples of the cylindrical main body 21 and the ceiling member 22 include aluminum castings, titanium castings, aluminum alloy castings, and titanium alloy castings.

[0028] A flashlight window is provided in the ceiling member 22, and the light-guiding member 23 is disposed in the flashlight window. In the runway-embedded flashlight device 20 of this embodiment, for example, there may be two or more flashlight windows, and a light-guiding member 23 may be disposed in each of the flashlight windows. If there are two or more light-guiding members 23, the load on the light-guiding member 23 can be further reduced and damage can be prevented. For example, as shown in FIG. 2, the flashlight window and the light-guiding member 23 may be divided into two or more pieces by a reinforcing plate member 24 described below. An example of the light-guiding member 23 is a prism lens. The material of the prism lens is not particularly limited, but may be, for example, glass.

[0029] The ceiling member 22 may, for example, include an upper ceiling portion 22a and a lower ceiling portion 22b, and may have a stepped structure in which the upper ceiling portion 22a is positioned rearward of the irradiation direction of the flash irradiation window, and the lower ceiling portion 22b is positioned on the irradiation direction side of the flash irradiation window.

[0030] The runway-embedded flash device 20 of this embodiment may further include, for example, a reinforcing plate member 24, which may be arranged on the outer surface of the lower ceiling portion 22b in a state of standing upright in the vertical direction of the outer surface of the lower ceiling portion 22b. The ceiling member 22 and the reinforcing plate member 24 may be, for example, separate and independent members, or may be an integrally molded product. When the ceiling member 22 and the reinforcing plate member 24 are separate members, the reinforcing plate member 24 may be, for example, an aluminum casting, a titanium casting, an aluminum alloy casting, a titanium alloy casting, or the like, as in the case of the integrally molded product.

[0031] The runway-embedded flashlight device 20 of this embodiment may further include a fixing member 25, for example. The fixing member 25 is disposed on the outer periphery of the ceiling member 22, and may have screw holes for receiving screws for fastening the device to the runway 30. The fixing member 25 may have a tapered outer surface, for example, so that its thickness decreases toward the outer periphery. The ceiling member 22 and the fixing member 25 may be separate, independent members or may be integrally molded. When the ceiling member 22 and the fixing member 25 are separate members, the fixing member 25 may be made of, for example, aluminum casting, titanium casting, aluminum alloy casting, titanium alloy casting, or the like, as in the case of the integrally molded member. At least one of the ceiling member 22 and the fixing member 25 may have a hole for lifting the runway-embedded flashlight device 20 with a tool.

[0032] LED flashlight source 10 is disposed within cylindrical main body 21 in a state in which it can emit a flash of light toward light-guiding member 23 disposed in the flashlight emission window. Fig. 4 shows an exemplary perspective view of cylindrical main body 21 and ceiling member 22 from below. For example, as shown in Fig. 4, a portion for arranging LED flashlight source 10 may be provided below the flashlight emission window on the inner surface of ceiling main body 22 (the surface on the cylindrical main body 21 side). Light-guiding member 23 allows the flash of light emitted from LED flashlight source 10 to be emitted to the outside from the flashlight emission window.

[0033] The LED flashlight source 10 is the LED flashlight source 10 of the first embodiment.

[0034] The LED flashlight source 10 may further include a heat dissipation member 17, which may be attached to the LED module 11, as shown in FIG.

[0035] For example, the heat dissipation member 17 is disposed inside the cylindrical main body 21, with a portion of the heat dissipation member 17 in contact with the LED module 11 and at least a portion of the other portion of the heat dissipation member 17 in contact with the ceiling member 22. This allows the heat generated by the LED module 11 to be conducted to the ceiling member 22 via the heat dissipation member 17 and dissipated to the outside of the device 20. The runway-embedded flash device 20 of this embodiment has better heat dissipation properties than dissipating heat inside the device 20.

[0036] As shown in FIG. 2, a portion of heat dissipation member 17 is in contact with the surface of substrate 11a opposite to the side where LED 11b is mounted. The other portion of heat dissipation member 17 may be in contact with any part of ceiling member 22 as long as at least a portion of heat dissipation member 17 is in contact with ceiling member 22. For example, as shown in FIG. 2, at least a portion of heat dissipation member 17 may be in contact with the flash irradiation side of ceiling member 22 relative to the flash irradiation window. In this embodiment, for example, at least a portion of heat dissipation member 17 may be in contact with lower ceiling portion 22b. In the embodiment shown in FIG. 2, heat generated by LED module 11 can be transferred via heat dissipation member 17 to the flash irradiation side relative to the flash irradiation window, which can melt accumulated snow that blocks flash irradiation, for example, on an airplane runway in a cold region. For example, as shown in FIG. 4, the inner surface of ceiling member 22 (the surface on the cylindrical main body 21 side) may be provided with a portion for arranging heat dissipation member 17 as part of the portion for arranging LED flashlight source 10 described above.

[0037] The heat dissipation member 17 may include, for example, a thermally conductive member. Examples of the thermally conductive member include a plate-shaped heat sink and a heat pipe, and these may be homemade or commercially available. Examples of the material for the plate-shaped heat sink include copper and aluminum. The material for the heat pipe is not particularly limited and may be any known thermally conductive material, specifically metal. Examples of the metal include aluminum and its alloys, magnesium and its alloys, iron and its alloys, copper and its alloys, titanium and its alloys, molybdenum and its alloys, and tungsten and its alloys. Figure 5 is a perspective view from below showing an example of the cylindrical body, ceiling member, and thermally conductive member in a runway-embedded flashlight device of this embodiment. The heat dissipation member 17 may include, for example, a plate-shaped heat sink 17a and a heat pipe 17b, with a portion of one surface of the plate-shaped heat sink 17a in contact with the LED module 11, at least a portion of the other surface of the plate-shaped heat sink 17a in contact with the lower ceiling portion 22b, and one end of the heat pipe 17b positioned on the LED module 11 side and the other end positioned on the lower ceiling portion 22b side, attached to the plate-shaped heat sink 17a. Note that, although Fig. 5 shows an example in which the heat pipe 17b is attached to the other surface of the plate-shaped heat sink 17a (the surface opposite to the surface (one surface) in contact with the LED module 11), the heat pipe 17b may be attached to one surface of the plate-shaped heat sink 17a, or may be attached to both the other surface and one surface of the plate-shaped heat sink 17a. In the embodiment shown in FIG. 5, the heat pipe 17b may be disposed by, for example, cutting out the plate-shaped heat sink 17a in the thickness direction, embedding the heat pipe 17b, and soldering it thereto.

[0038] As shown in FIG. 5, for example, the heat pipe 17b may have a first straight portion extending perpendicular to the irradiation direction (arrow X direction) and a second straight portion extending in the irradiation direction, and the first straight portion and the second straight portion may be joined to form an L-shape overall, with one end side including the first straight portion and the other end side including the second straight portion.

[0039] In Figure 5, an example is shown in which the heat dissipation member 17 is a heat conductive member, but heat can also be dissipated using heat dissipation fins arranged on the surface of the substrate 11a opposite to the surface on which the LED 11b is mounted, or a fan that blows air toward the substrate 11a.

[0040] It is preferable that the runway-embedded flash device 20 of this embodiment emits an upward flash at an angle α of about 3° with respect to the direction parallel to the runway surface, as shown in Fig. 10. An example of the light-guiding member 23 and LED flash source 10 inside the runway-embedded flash device 20 shown in Fig. 10 is shown in Fig. 11. Note that Fig. 11 perspectively shows the lower impact-absorbing sheet 14a, frame-shaped mounting plate 12, upper impact-absorbing sheet 14b, and the hollow portion within the frame of the frame-shaped pressing plate 15, just like Fig. 1(B).

[0041] While a flash device using a xenon flash light source weighs 65 kg or less, specifically about 40 kg, the weight of the runway-embedded flash device 20 of this embodiment is, for example, 18 kg or less, specifically about 11 kg. In this way, this embodiment can provide a lightweight runway-embedded flash device.

[0042] [Embodiment 3] Fig. 6 is an exploded perspective view showing the configuration of an example of a runway-embedded flash device of this embodiment, and Fig. 7 is a perspective view from below of the runway-embedded flash device shown in Fig. 6. As shown in Figs. 6 and 7, the runway-embedded flash device 20 of this embodiment is similar to the runway-embedded flash device of embodiment 2, except that it further includes a bottom cover member 26.

[0043] The bottom cover member 26 is disposed in a state where it closes the lower opening of the cylindrical main body 21. Examples of materials for the bottom cover member 26 include aluminum, titanium, an aluminum alloy, a titanium alloy, or a casting thereof.

[0044] Fig. 8 shows a side view of an example of the bottom cover member 26. For example, as shown in Fig. 8, the bottom cover member 26 may include a cable gland 26a and an external earth terminal 26b. Furthermore, if the bottom cover member 26 is attached to at least one of the cylindrical body 21 and the LED flashlight source 10 using, for example, a screw 26c and an O-ring (not shown), the runway-embedded flashlight device 20 can be made waterproof.

[0045] [Embodiment 4] Fig. 9 is a schematic perspective view showing the configuration of an example of a runway of this embodiment. Although Fig. 9 shows a simplified schematic view, the runway 30 is one in which the runway-embedded flash devices 20 of the second or third embodiment are embedded in the runway, with the ceiling member 22 exposed.

[0046] Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above-described embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

[0047] A part or all of the above-described embodiments can be described as, but not limited to, the following supplementary notes. (Appendix 1) The LED module includes a frame-shaped mounting plate, a lens member, and a shock-absorbing sheet. The lens member is attached to a hollow portion within the frame of the frame-shaped mounting plate, the lens member is a lens member that makes the luminance distribution of the flash of light emitted from the LED uniform on the irradiated surface, the shock absorbing sheet includes a lower shock absorbing sheet and an upper shock absorbing sheet, The lower shock-absorbing sheet is disposed on the LED module, the frame-shaped mounting plate to which the lens member is attached is disposed on the lower impact absorbing sheet; The upper impact absorbing sheet is disposed on the frame-shaped mounting plate. LED flashlight source for runway embedded flashlight devices. (Appendix 2) Further, a frame-shaped pressing plate is included, The frame-shaped presser plate is disposed on the upper impact absorbing sheet, The frame-shaped mounting plate is fixed to the LED module by the frame-shaped pressing plate. An LED flashlight source for a runway-mounted flashlight device as described in Appendix 1. (Appendix 3) Further, a heat dissipation member is included, The heat dissipation member is attached to the LED module. An LED flashlight source for a runway-mounted flashlight device as described in Appendix 1 or 2. (Appendix 4) The heat dissipation member includes a heat conduction member. An LED flashlight source for a runway-mounted flashlight device as described in Appendix 3. (Appendix 5) The heat conducting member includes at least one of a plate-shaped heat sink and a heat pipe. An LED flashlight source for a runway-mounted flashlight device as described in Appendix 4. (Appendix 6) The lamp includes a cylindrical body, a ceiling member, a light guide member, and an LED flashlight source, The cylindrical body is embeddable in a runway; the ceiling member is disposed at an upper opening of the cylindrical main body in a state in which the ceiling member can be exposed to a runway surface when the cylindrical main body is embedded in the runway, The ceiling member is provided with a window for flashlight irradiation, the light guide member is disposed in the flashlight irradiation window, the LED flashlight source is disposed within the cylindrical body in a state capable of emitting a flashlight toward the light-guiding member disposed in the flashlight emission window; the light guide member allows the flash emitted from the LED flashlight source to be emitted to the outside through the flashlight irradiation window, The LED flashlight source is an LED flashlight source according to any one of Supplementary Notes 1 to 5. Runway-mounted flashing device. (Appendix 7) the ceiling member includes an upper ceiling portion and a lower ceiling portion, the upper ceiling portion is disposed rearward of the direction of irradiation of the flashlight irradiation window, The lower ceiling portion is disposed on the irradiation direction side of the flash irradiation window. A runway-mounted flashing device as described in Appendix 6. (Appendix 8) Further, a reinforcing plate member is included, The reinforcing plate member is disposed on the outer surface of the lower ceiling portion in a state of standing upright in a direction perpendicular to the outer surface of the lower ceiling portion. A runway-mounted flashing device as described in Appendix 7. (Appendix 9) There are two or more flashlight irradiation windows, and the light guide member is disposed in each of the flashlight irradiation windows. 9. A runway-mounted flashing device according to any one of clauses 6 to 8. (Appendix 10) Further, the fixing member is included, the fixing member is disposed on the outer periphery of the ceiling member, The fixing member is provided with a screw hole through which a screw for fixing to the runway is passed. 10. A runway-mounted flashing device according to any one of clauses 6 to 9. (Appendix 11) The ceiling member and the fixing member are integrally molded. 11. A runway-mounted flashing device as described in Clause 10. (Appendix 12) Further, a bottom cover member is included, The bottom cover member is disposed in a state where it closes the lower opening of the cylindrical body. 12. A runway-mounted flashing device according to any one of clauses 6 to 11. (Appendix 13) The bottom cover member includes a cable gland and an external earth terminal. 13. A runway-mounted flashing device as described in Clause 12. (Appendix 14) The cylindrical body and the ceiling member are integrally molded. 14. A runway-mounted flashing device according to any one of clauses 6 to 13. (Appendix 15) A runway having a runway-mounted flashing device embedded therein as described in any of appendixes 6 to 14. [Industrial Applicability]

[0048] According to the present invention, it is possible to provide a new LED flashlight source for a runway-embedded flashlight device that is lightweight, has a long life, has high effective luminous intensity, is switchable in luminous intensity, consumes little power, and has excellent impact resistance. [Explanation of symbols]

[0049] 10 LED flash light source 11 LED modules 11a board 11b LED 12 Frame-shaped mounting plate 13 Lens components 14a Lower shock absorbing sheet 14b Upper shock absorbing sheet 15 Frame-shaped pressure plate 17 Heat dissipation material 17a Plate-shaped heat sink 17b Heat pipe 20 Runway-mounted flashing device 21 Cylindrical body 22 Ceiling materials 22a Upper ceiling 22b Lower ceiling section 23 Light guide member 24 Reinforcement plate member 25 Fixing member 26 Bottom cover member 26a Cable Gland 26b External earth terminal 26c screw Runway 30

Claims

1. The light source includes a main body, a ceiling member, a light guide member, and an LED flashlight source, The ceiling member is disposed on an upper portion of the main body, The ceiling member is provided with a window for flashlight irradiation, the light guide member is disposed in the flashlight irradiation window, the LED flashlight source is disposed within the body; the light guide member allows the flash of light emitted from the LED flashlight source to be emitted to the outside through the flashlight irradiation window, the LED flashlight source includes an LED module, a lens member, a frame-shaped mounting plate, and a shock-absorbing sheet; the lens member is a fly-eye lens that makes the luminance distribution of the surface illuminated by the flash of light emitted from the LED module uniform, and is attached to the frame-shaped mounting plate; Runway-mounted flashing device.

2. the ceiling member includes an upper ceiling portion and a lower ceiling portion, the upper ceiling portion is disposed rearward of the direction of irradiation of the flashlight irradiation window, the lower ceiling portion is disposed on the irradiation direction side of the flash irradiation window, The runway-mounted flashing device according to claim 1.

3. Further, a reinforcing plate member is included, The reinforcing plate member is disposed on the outer surface of the lower ceiling portion in a state of standing upright in a direction perpendicular to the outer surface of the lower ceiling portion.

3. The runway-mounted flashing device according to claim 2.

4. the number of the flashlight irradiation windows is two or more, and the light guide member is disposed in each of the flashlight irradiation windows; 2. The runway-mounted flashing device according to claim 1.

5. The light guide member is a prism lens. The runway-mounted flashing device according to claim 1.

6. Further, the fixing member is included, the fixing member is disposed on the outer periphery of the ceiling member and fixes the ceiling member to the runway; 3. The runway-embedded flashing device according to claim 1 or 2.

7. Further, a bottom cover member is included, the bottom cover member is disposed in a state of closing a lower opening of the main body, Includes cable gland and external earth terminal 2. The runway-mounted flashing device according to claim 1.

8. The LED flashlight source is switchable in luminous intensity.

2. The runway-mounted flashing device according to claim 1.

Images