JP5491013B2 - Lighting equipment - Google Patents

Description

  The present invention relates to a lighting device, and more particularly to a lighting device that is optimally used as a marker light indicating a take-off and landing position at night by being installed in a take-off and landing field of a flying body such as a helicopter.

  There are offshore landing fields and emergency landing fields that can take off and landing helicopters temporarily. In these landing fields, various sign lights are installed to safely take off and landing the helicopters at night. It is necessary to do.

For example, Patent Document 1 discloses a portable marker lamp installed in a take-off and landing field of a helicopter. This portable beacon lamp is configured by arranging a plurality of light emitting diodes so as to be densely arranged at the center position of the substrate, and by arranging an inverted conical reflection mirror with the top and bottom reversed at the upper position. Yes. Thereby, in this portable marker lamp, the light emitted upward from the light emitting diode is irradiated in a substantially horizontal direction outward in the radial direction by reflection of the reflecting mirror. Although the approach angle at the time of landing of the helicopter is about 30 °, the portable beacon light in the above publication can irradiate light at an irradiation angle that extends 30 ° upward from the horizontal direction. The performance required as a marker lamp is secured. Moreover, in this portable marker lamp, the irradiation angle is changed by exchanging the reflection mirror with a different angle.
JP 2001-23405 A

  By the way, although the approach angle is 30 ° during normal landing of the helicopter as described above, for example, in an emergency take-off and landing field, the approach angle may have to be further increased due to location restrictions. Accordingly, it is preferable that the irradiation angle of the marker lamp installed in the take-off and landing field be as wide as possible in order to cope with various situations. For example, it is desirable that there is an irradiation angle of 90 ° or more from the vertically upward direction to the horizontal direction. By doing so, it is possible to ensure a light intensity of a predetermined level or more even immediately above the identification lamp.

  However, since the portable marker lamp described in the above publication is configured to reflect by an inverted conical reflecting mirror, the irradiation angle is only a relatively narrow angle, and it is natural that light is irradiated vertically upward. Can not. In addition, if you want to change the irradiation angle, you must replace the reflecting mirror, so each time you install a portable beacon light, depending on the approach angle at the time of landing, The troublesome work of exchanging the reflection mirror has to be performed, which is inconvenient.

  This invention is made | formed in view of this point, The place made into the objective is to provide the lighting device with a wide irradiation angle.

  In the present invention, the light emitted from the light emitter is reflected by the reflector to irradiate light in the substantially horizontal direction outward in the radial direction, but also a part of the light emitted upward from the light emitter. In this case, the irradiation angle is expanded by both the direct light from the light emitter and the reflected light from the reflector by irradiating upward without being reflected.

That is, according to one aspect of the present invention, the lighting device is a lighting device that is used as a marker lamp that indicates a take-off and landing position with respect to a flying object, and is disposed so as to be orthogonal to a vertical central axis extending in the vertical direction. A plurality of light emitters each having a substrate, a vertically upward optical axis, and arranged side by side so as to form a circle centered on the vertical center axis on the substrate; and a circle composed of the plurality of light emitters A light emitting section having a reflector disposed on the substrate and fixed to the substrate, wherein the reflector is arranged so as to be coaxial with the vertical central axis, and by reversing its top and bottom. The shape is an inverted frustoconical shape having a reflective peripheral surface that is reduced in diameter downward, and the reflective peripheral surface is configured by a curved surface formed by the conical surface of the reverse truncated conical shape, and from above the substrate on which the light emitters are disposed. Upward and radial Of being inclined outwardly, the respective light emitters is disposed in a position intersecting the upper peripheral edge perpendicular dropped vertically downward from said reflector, said light emitting portion is a longitudinal section through the light emitting member position The irradiation angle at is such that the light emitted upward from the light emitter and the light emitted outward in the radial direction by being reflected by the reflection peripheral surface of the reflector are 90 ° or more. Is set .

  According to this configuration, the light emitting unit is configured by arranging a plurality of light emitters in a circular shape and an inverted frustoconical reflector having a reflective peripheral surface that is reduced in diameter downward on the inside thereof. Further, each light emitter is arranged at a position intersecting with a perpendicular drawn downward downward from the outer periphery of the upper end of the reflector. Thereby, when this light emitting part is viewed from above, a part of each light emitter is covered and hidden by the reflector, while the remaining part is exposed without being covered by the reflector.

  For this reason, when each of the light emitters emits light, a part of the light is reflected by the reflecting peripheral surface that is reduced in diameter downward and is irradiated in the substantially horizontal direction toward the outside in the radial direction. The part is irradiated upward as it is without being reflected by the reflection peripheral surface. Thus, the irradiation angle is expanded by the presence of both the light emitted upward from the light emitter and the light emitted outwardly in the radial direction by being reflected by the reflection peripheral surface of the reflector. To do.

  In addition, a plurality of light emitters are arranged in a circular shape, and an inverted frustoconical reflector is disposed adjacent to the light emitters in the horizontal direction so that the entire 360 ° centering on the vertical central axis is provided. Light can be irradiated over the direction.

  Thus, since the irradiation angle is expanded in advance, a complicated operation such as changing the reflector is not required to change the irradiation angle, and the usability of the lighting device is greatly improved.

The light emitting portion is directed radially outward by reflecting the light irradiated upward from the light emitter at the longitudinal section passing through the light emitter position and the reflection peripheral surface of the reflector. by the light irradiated that is set to be 90 ° or more. In other words, the directivity characteristics of the light emitter, the inclination angle of the reflecting peripheral surface of the reflector, and, by adjusting the relative position between the light emitter and the reflector, respectively, the irradiation angle is set to be 90 ° or more Yes . In this way, in the longitudinal section passing through the vertical central axis of the lighting device, a predetermined range is provided over a range of 90 ° on both sides across the vertical central axis, that is, over the entire range of 180 ° in the longitudinal cross section. The above luminous intensity can be obtained. As a result, when this lighting device is used, for example, as a marker light for an aircraft take-off and landing field, it can cope with various situations and can be used for other purposes. Increased versatility.

  The lighting device includes a main body portion that contains at least a control circuit including a power source for causing the light emitting portion to emit light, a translucent glove that is attached to the upper surface of the main body portion and houses the light emitting portion therein, And a carrying handle attached to the main body. That is, the lighting device of the present invention may be a portable portable lighting device.

  Each of the light emitters may be a light emitting diode, and the power source may be a lithium ion secondary battery. By doing so, it is possible to reduce the weight of the lighting device and increase the continuous lighting time due to power saving, and it is suitable for a lighting device that is portable and used in a place where there is no power supply facility. .

  The light emitter includes a plurality of types of light emitting diodes having different emission colors, the translucent globe is transparent, and the light emitting unit emits light of a plurality of colors by switching the light emitting diodes to emit light by the control circuit. It may be configured to be possible.

  The conventional lighting device has only a single color illuminant. Therefore, when changing the luminescent color, the glove covering the illuminant is replaced with a glove having a desired color. Therefore, like the change of the irradiation angle, the replacement work of the glove is complicated and the usability is poor.

  On the other hand, the lighting device of this configuration is provided with a plurality of types of light emitting diodes having different emission colors in advance, and is configured to be capable of emitting a plurality of colors through the transparent globe by switching the light emitting diodes to emit light. As a result, usability is greatly improved and the application of the lighting device is expanded.

  The control circuit includes a detection circuit that detects a remaining amount of the lithium ion secondary battery, and the light emitting unit further includes a display unit that indicates the remaining amount of the lithium ion secondary battery detected by the detection circuit. It is good as well.

  In this way, the remaining amount of the lithium ion secondary battery can be easily recognized, and by charging and storing it according to the remaining amount, it becomes possible to use the lighting device as it is, and the usability is further improved. improves.

  As described above, according to the present invention, a plurality of light emitters arranged in a circular shape and an inverted frustoconical reflector placed inside the circle are irradiated upward from the light emitter. The illumination angle in the lighting device can be expanded by combining both the light to be emitted and the light emitted toward the outside in the radial direction by being reflected by the reflection peripheral surface of the reflector.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

  1 to 3 show a lighting device 1 according to the present embodiment. This lighting device 1 is a portable lighting device 1 that is used as a marker lamp installed outside a helicopter or in an emergency take-off and landing field. is there.

  The lighting device 1 includes a main body portion 2 and a light emitting portion 3 disposed at the upper center of the main body portion 2.

  The main body 2 has a rectangular box shape including an upper surface 21, a lower surface 22, a front surface 23, a rear surface 24, and left and right side surfaces 25 and 26 that are orthogonal to each other, and four leg portions 27 are attached to the lower surface 22 at four corners. In addition, although not shown in the figure, a control circuit 6 composed of various electric components including a power source is accommodated therein. Since the lighting device 1 is used outdoors, the main body 2 preferably has a dustproof and waterproof structure.

  The main body 2 also has a shape that is relatively low in height as compared with the width and depth, thereby setting the position of the center of gravity of the lighting device 1 as low as possible. As described above, this is an advantageous configuration for preventing the helicopter from falling down due to the wind pressure at the time of landing when it is installed on the ground as an indicator light for a take-off and landing field. In an emergency landing site or the like, it is also assumed that the lighting device 1 is placed on an inclined ground, but even in such a case, the lighting device 1 can be stably installed.

  A carrying handle 28 extending in the horizontal direction toward the front (downward direction in FIG. 1) is integrally provided on the upper surface 21 of the main body 2, and the lighting device 1 holds the carrying handle 28 by gripping the carrying handle 28. It will be carried vertically. This configuration is advantageous when carrying a plurality of lighting devices 1 at a time.

  On the front surface 23 of the main body 2, a plurality of operation switches 4 for operating the lighting device 1 and a charger 7 for charging a lithium ion secondary battery 61 (also referred to as a lithium ion battery pack 61) as a power source (FIG. 7) is connected to each of the connectors 44. Among these, the operation switch 4 includes a function setting switch 41 for switching the operation mode of the lighting device 1, a luminance adjustment volume switch 42 for adjusting the luminance of the light emitting unit 3, and a manual / remote changeover switch 43. included. As will be described in detail later, the lighting device 1 includes a manual operation for performing a desired operation by operating an operation switch 4 attached to the main body 2, and a remote operation by a remote control transmitter 45 (see FIG. 7). The manual / remote changeover switch 43 is a switch for switching between manual operation and remote operation.

  As described above, the light emitting unit 3 is disposed at the center of the upper surface 21 of the main body 2 and is covered with the transparent globe 5 attached to the upper surface 21 of the main body 2. The transparent globe 5 has a substantially hemispherical shape, and as shown in FIG. 4, the flange portion 51 is screwed to the upper surface 21 of the main body portion 2 via the waterproof member 52, thereby providing a dustproof and waterproof structure. Is secured to the main body 2 while securing the above.

  As shown in FIGS. 4 and 5, the light emitting unit 3 includes first and second substrates 31 and 32 and a reflector 33 disposed between the first and second substrates 31 and 32. It is configured.

  The first substrate 31 is a circular plate-shaped member, and is disposed at a central position on the upper surface 21 of the main body 2 with a space upward from the upper surface 21, with respect to the upper surface 21. It is fixed by screws 34. Accordingly, the first substrate 31 is disposed so that the center position thereof is on the vertical center axis X and is orthogonal to the vertical center axis X.

  The 1st board | substrate 31 is a board | substrate with which many light-emitting bodies are arrange | positioned, and in this lighting device 1, high-intensity chip LED35 is employ | adopted as a light-emitting body. The chip LED 35 is disposed on the first substrate 31 with its optical axis oriented vertically upward.

  The lighting device 1 (light emitting unit 3) is also configured to emit light in four emission colors of white, red, yellow, and green, and the chip LED 35 has a plurality of types of light emission colors different from each other. Chip LEDs 35W, 35R, 35Y, and 35G are included. Specifically, six chip LEDs 35W, 35R, 35Y, and 35G that emit white, red, yellow, and green light are provided, respectively, and a total of 24 chip LEDs 35 are vertical as shown in FIG. On the circumference centering on the central axis X, white 35W, yellow 35Y, green 35G, and red 35R are arranged in a line at equal intervals so as to be in order. Thus, the plurality of chip LEDs 35 are arranged on the first substrate 31 so as to form a circular shape with the vertical central axis X as the center. Although not shown, each chip LED 35 is connected to the control circuit 6 through an opening 211 provided on the upper surface 21 of the main body 2.

  As shown in FIG. 4 and the like, the reflector 33 is formed in an inverted frustoconical shape having a circumferential surface whose diameter is reduced downward by reversing the top and bottom, and whose both upper and lower ends are open. The peripheral surface of the diameter is a mirror surface that can reflect light to form a reflective peripheral surface 331. Here, the inclination angle θ (inclination angle with respect to the horizontal direction) θ of the reflection peripheral surface is set to 63 ° in the present embodiment, but is not limited to this, and the angle may be set as appropriate.

  The inverted frustoconical reflector 33 is arranged on the first substrate 31 so as to be coaxial with the vertical central axis X inside a circle made of the chip LEDs 35. The reflector 33 is attached and fixed to the first substrate 31 with screws 34 for fixing the first substrate 31 to the main body 2.

  Here, the positional relationship between the reflector 33 and each chip LED 35 will be described in detail with reference to FIGS. 4 to 6. Each chip LED 35 is lowered downward from the upper end edge of the inverted frustoconical reflector 33. More specifically, the vertical line (see the alternate long and short dash line) intersects with each chip LED 35, and more specifically, is disposed so as to substantially coincide with the optical axis of each chip LED 35. As a result, when the light emitting unit 3 is viewed from above (see FIG. 5), a part of the inner side in the radial direction of each chip LED 35 is covered and hidden by the reflector 33, whereas the radial direction of each chip LED 35 is hidden. A part of the outside is exposed without being covered by the reflector 33.

  Here, the high-luminance chip LED 35 has a relatively wide irradiation angle (directional characteristic) (for example, 120 ° centering on the vertically upward optical axis). As a result, a part of the light emitted by each chip LED 35 is reflected by the reflection peripheral surface 331 of the reflector 33 and is irradiated in the substantially horizontal direction outward in the radial direction (the broken line in FIG. 6). On the other hand, a part of the light is irradiated over an angle range of about 60 ° from the vertically upward direction without being reflected by the reflection peripheral surface 331 (see the solid arrow in FIG. 6). Thus, both the light emitted upward from the chip LED 35 and the light emitted outward in the radial direction by being reflected by the reflection peripheral surface 331 of the reflector 33 are present, and the light emitting unit The irradiation angle α of 3 is enlarged. Specifically, in this lighting device 1, the irradiation angle α is 90 ° or more.

  In addition, the reflective peripheral surface 331 is disposed adjacent to each chip LED 35 in the horizontal direction, so that a large number of chip LEDs 35 of each color can be arranged at an angular interval of at least 60 ° without arranging a large number of chip LEDs 35 on the circumference. If arranged individually, it is possible to irradiate 360 degrees around the vertical central axis X by reflection by the reflection peripheral surface 331. Therefore, in this lighting device 1, as described above, six chip LEDs 35 are arranged at an angular interval of 60 ° for each color (see FIG. 5).

  The second substrate 32 has a circular shape smaller in diameter than the first substrate 31 and is disposed at the upper end of the reflector 33 so as to close the upper end opening of the reflector 33. The second substrate 32 is fixed to the first substrate 31 by screwing a central portion of the spacer 36 interposed between the second substrate 32 and the first substrate 31.

  On the second substrate 32, a total of four antennas 37 connected to a wireless receiver (see FIG. 7) described later and a battery monitor 38 for displaying the remaining amount of the lithium ion secondary battery 61 are arranged. It is installed. The four antennas 37 are respectively arranged at equal intervals around the vertical center axis X around the vertical center axis X. Thus, by arranging the antenna 37 for the radio receiver in the transparent globe 5, the antenna 37 can be protected by the transparent globe 5, and the lighting device 1 can be easily handled. is there.

  The battery monitor 38 is configured by arranging three LEDs 38G, 38Y, and 38R of green, yellow, and red side by side, and is a lithium ion secondary battery detected by a battery remaining amount detection circuit 67 described later. According to the remaining amount of 61, when the remaining amount is sufficient and charging is not necessary, the green LED 38G is lit, the remaining amount is low, and when the charging time is approaching, the yellow LED 38Y is lit, When there is almost no remaining amount and the battery needs to be charged, the red LED 38R is turned on to visually indicate the remaining amount of the lithium ion secondary battery 61.

  FIG. 7 is a block diagram illustrating a configuration of a control circuit 6 that is housed in the main body 2 and drives the light emitting unit 3. The control circuit 6 includes a lithium ion battery pack 61 with overcharge and overdischarge protection functions as a power source. Thus, by adopting the lithium ion battery pack 61 as the power source of the lighting device 1, it is possible to reduce the size and weight even if the capacity is large. As a result, the lighting device 1 can be reduced in size and weight. Further, since the lithium ion battery pack 61 has very little spontaneous discharge, there is an advantage that even if the lighting device 1 is stored in a state of being charged in advance, it can be used as it is when necessary.

  The lithium ion battery pack 61 is connected to a DC / DC converter 62, and is boosted by the DC / DC converter 62 to suppress power consumption of the chip LED 35 and the like.

  A function setting circuit 63 is connected to the DC / DC converter 62. The function setting circuit 63 is a circuit for operating the light emitting unit 3 according to the function selected by the function setting switch 41, and the first substrate 31 via the oscillation circuit 64, the relay circuit 65, and the luminance adjustment circuit 66. It is connected to (chip LED 35).

  Here, in the lighting device 1, functions that can be selected by the function setting switch 41 include “white lighting”, “white flashing”, “red lighting”, “red flashing”, “yellow lighting”, “yellow flashing”, A total of eight lighting modes of “green lighting” and “green flashing” are provided. The function setting switch 41 can select a charging mode that is selected when the lithium ion secondary battery 61 is charged and a battery monitor mode that detects the remaining amount of the lithium ion secondary battery 61. The function setting switch 41 also serves as an off switch for stopping the lighting device 1.

  The lithium ion secondary battery 61 and the function setting circuit 63 are also connected to a battery remaining amount detection circuit (comparison circuit) 67. The battery remaining amount detection circuit 67 is a circuit that detects the remaining amount of the lithium ion secondary battery 61 as described above. The battery remaining amount detection circuit 67 is connected to the second substrate 32 (battery monitor 38), and as described above, one of green, yellow and red of the battery monitor 38 is selected according to the detected remaining battery amount. The LEDs 38G, 38Y, and 38R are turned on.

  As described above, the lighting device 1 is configured to be capable of both a manual operation by operating the operation switch 4 provided in the main body 2 and a remote operation using the remote control transmitter 45. ing.

  That is, the control circuit 6 further includes a radio receiver 68 connected to the DC / DC converter 62 and supplied with power, and a manual / remote switching circuit 69 to which the radio receiver 68 is connected. The manual / remote switching circuit 69 is connected to the relay circuit 65. As will be described in detail later, when the remote control transmitter 45 is operated, the light emitting unit 3 operates according to any one of the eight lighting modes via the wireless receiver 68 and the manual / remote switching circuit 69. Will do.

  Next, the operation of the lighting device 1 will be described. First, when charging the lithium ion secondary battery 61, the function setting switch 41 is switched to the “charging” position, and the charger 7 is connected to the connector 44 of the main body 2. Then, charging of the lithium ion secondary battery 61 is started by pressing a start switch (not shown) provided in the charger 7. In this lighting device 1, charging for 90%, which is an operable capacity, is possible by charging for 1 hour, and full charging is completed in 4 hours.

  Next, a manual operation by operating the operation switch 4 of the main body 2 will be described. In this manual operation, first, the manual / remote changeover switch 43 is switched to “manual”, and the function setting switch 41 is turned “white light”, “white light flash”, “red light”, “red light flash”, “yellow light”. ”,“ Yellow blinking ”,“ green lighting ”, and“ green blinking ”. As a result, the corresponding light emitting chip LED 35 is turned on or blinks. Further, by operating the brightness adjustment volume switch 42, the brightness of each chip LED 35 is adjusted through the brightness adjustment circuit 66. Then, the chip LED 35 is turned on or blinked with a desired luminance.

  On the other hand, when remote control is performed by the remote control transmitter 45, the function setting switch 41 is set to “white lighting”, “white flashing”, “red lighting”, “red flashing”, “yellow lighting”, “yellow flashing”. The manual / remote changeover switch 43 is switched to “remote” in a state in which any one of the eight operation modes of “green light” and “green blinking” is selected. As a result, all the chip LEDs 35 are turned off, and the main body 2 is in a standby state. This saves power consumption.

  Although not shown, the remote control transmitter 45 is provided with a manual lighting button. When the manual lighting button is operated with the main unit 2 in the standby state, the remote control transmitter 45 is selected by the function setting switch 41 of the main unit 2. The light emitting unit 3 operates in the operation mode. That is, the selected light emitting chip LED 35 is turned on or blinks.

  In addition, the remote control transmitter 45 is provided with a color button and a lighting / blinking button (not shown), and selects one of “white”, “red”, “yellow”, and “green” by the color button. When operated, the light emitting color chip LED 35 selected by the remote control transmitter 45 is turned on regardless of the setting contents of the function setting switch 41 of the main body unit 2, and when the lighting / flashing button is further operated, The chip LED 35 blinks. As described above, even by remote operation using the remote control transmitter 45, the light emitting unit 3 can be operated in a desired operation mode from among the eight operation modes.

  Next, when checking the remaining amount of the lithium ion secondary battery 61, the “battery monitor” mode is selected by the function setting switch 41 and the manual / remote changeover switch 43 is switched to “manual”. Accordingly, as described above, any of the LEDs 38G, 38Y, and 38R of the battery monitor 38 on the second substrate 32 is lit, and the remaining battery level can be confirmed.

  Thus, according to the lighting device 1 according to the present embodiment, the light emitting unit 3 is viewed in a vertical section by combining the plurality of chip LEDs 35 and the inverted frustoconical reflector 33 in the light emitting unit 3. Sometimes (see FIG. 6), the irradiation angle θ can be expanded to 90 ° or more from the horizontal direction to the vertical direction. As a result, the lighting device 1 has a longitudinal section of 360 ° around the vertical center axis X over a range of 90 ° (180 ° as a whole) on both sides around the vertical center axis X in the longitudinal section. It is possible to irradiate with light. For this reason, since this lighting device 1 can irradiate light even from directly above the level, when used as an identification light for a take-off and landing field, it can cope with a change in the approach angle of the helicopter as it is. Can do. Moreover, even when the ground on which the lighting device 1 is installed is not horizontal but is inclined, it is possible to ensure an irradiation angle necessary as an identification lamp. Therefore, the replacement work of the reflector can be omitted, and the usability of the lighting device 1 is improved.

  In addition, since the four-color chip LEDs 35W, 35G, 35Y, and 35R are arranged in the light-emitting unit 3 and the light-emitting color of the light-emitting unit 3 can be switched only by a switch operation, it is not necessary to replace the glove as in the past Yes, the usability of the lighting device 1 is further improved.

  In addition, since the emission color can be changed in this way, the lighting device 1 can be used as a helicopter approach route guidance light, for example, by white lighting, or can be used as an access restriction light by, for example, red lighting. become.

  In addition, for example, it is possible to implement a plurality of take-off and landing fields so that the emission colors are different from each other.

  Furthermore, since the light emitting unit 3 of the lighting device 1 employs the chip LED 35 with low power consumption and the large-capacity lithium ion battery pack 61 as a power source, the continuous lighting time can be extended. It can be used even in places where no power supply facilities exist, and is highly convenient. Further, as described above, the battery can be stored in a fully charged state and used as it is.

  In addition, since the lighting device 1 is reduced in weight by adopting the lithium ion battery pack 61 or the like, it is possible to facilitate transportation work and installation work.

  The lighting device 1 can also be used as, for example, an airport lighting facility in addition to the above-described use as an identification light for a take-off and landing field. Moreover, it is applicable also as the lighting device 1 which shows danger zones, such as a landslide, and can be used for various uses.

  As described above, according to the present invention, the irradiation angle can be widened by combining a plurality of circularly arranged light emitters and an inverted frustoconical reflector. It is useful as a lighting device for various applications.

It is a top view of a lighting device. It is a front view of a lighting device. It is a side view of a lighting device. It is IV-IV sectional drawing of FIG. It is an enlarged plan view of a light emission part. It is an expanded sectional view explaining the irradiation range from a light emission part. It is a block diagram of a control circuit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light apparatus 2 Main-body part 28 Carrying handle 3 Light emission part 31 1st board | substrate 33 Reflector 331 Reflective peripheral surface 35 Chip LED (light emitter)
38 Battery monitor (display)
5 Transparent globe (Translucent globe)
6 Control circuit 61 Lithium ion secondary battery 67 Remaining battery level detection circuit X Vertical center axis

Claims (5)

A lighting device used as a marker lamp indicating a take-off and landing position with respect to a flying object,
A substrate disposed so as to be orthogonal to a vertical central axis extending in the vertical direction;
A plurality of light emitters each having a vertically upward optical axis and arranged side by side so as to form a circle centered on the vertical central axis on the substrate;
A light emitting unit having a reflector disposed in a circle composed of the plurality of light emitters and fixed to the substrate;
The reflector has an inverted truncated cone shape that is arranged so as to be coaxial with the vertical central axis and has a reflective peripheral surface that is reduced in diameter by reversing its top and bottom,
The reflection peripheral surface is configured by a curved surface formed of a conical surface of the inverted truncated cone, and is inclined upward and radially outward from the substrate on which the light emitters are disposed,
Each of the light emitters is disposed at a position that intersects a perpendicular line that descends vertically downward from the outer periphery of the upper end of the reflector ,
The light emitting portion is directed radially outward by reflecting the light irradiated upward from the light emitter at the longitudinal section passing through the light emitter position and the reflection peripheral surface of the reflector. A lighting device that is set to be 90 ° or more depending on the irradiated light. The lighting device according to claim 1 ,
A main body portion that houses at least a control circuit including a power source for causing the light emitting portion to emit light;
A translucent glove attached to the upper surface of the main body and containing the light emitting part therein;
A lighting device further comprising a carrying handle attached to the main body. The lighting device according to claim 2 ,
Each of the light emitters is a light emitting diode,
The lighting device is a lithium ion secondary battery. The lighting device according to claim 3 ,
The light emitter includes a plurality of types of light emitting diodes having different emission colors,
The translucent globe is transparent,
The light emitting unit is configured to emit light of a plurality of colors by switching light emitting diodes to emit light by the control circuit. The lighting device according to claim 3 ,
The control circuit includes a detection circuit that detects a remaining amount of the lithium ion secondary battery,
The light emitting unit further includes a display unit that indicates a remaining amount of the lithium ion secondary battery detected by the detection circuit.

Images