JP6751464B2 - Lighting equipment and lighting method - Google Patents

Description

The present invention relates to a lighting fixture and a lighting method.

A discharge lamp using a mercury lamp or the like as a light source has been used in many high-ceiling lighting fixtures or explosion-proof lighting fixtures installed in factories or gyms. However, at present, lighting fixtures in which the light source is replaced by an LED (light emitting diode) have been used from the viewpoint of weight reduction and the like.

The LED lighting apparatus can adjust the light distribution of the LEDs by adjusting the angle of the LED mounting board, for example. For example, Patent Literature 1 describes a lighting fixture (see Patent Literature 1) provided with a movable portion for changing the light distribution of LEDs.

JP, 2011-90852, A

However, for example, providing the movable portion as described in Patent Document 1 causes a problem from the viewpoint of maintenance because the movable portion becomes difficult to move due to deterioration or the like when used for a long period of time. Further, even if the movable portion is provided, there is a limit in freely controlling the light distribution.

Therefore, an object of the present invention is to provide a lighting fixture that can be used for a long period of time and that can control light distribution three-dimensionally freely.

In order to achieve the above object, the luminaire of the present invention comprises:
Including a light source unit, a power supply unit, and a control unit,
The light source unit includes a three-dimensionally shaped mounting substrate and a plurality of light emitting elements arranged on the mounting substrate, and the mounting substrate electrically connects the light emitting element and the power supply unit. A plurality of wiring patterns for
The wiring pattern, for each mounting substrate, to electrically connect the light emitting elements in at least one of the horizontal and vertical directions to form a light emitting element row and a light emitting element group,
The wiring pattern, by the light emitting element row and the light emitting element group, to divide the area to be irradiated, irradiating while controlling at least one of the irradiation light amount and irradiation light color for each of the divided areas,
Of the divided areas, irradiate so that only the target area is irradiated with light,
The target area irradiated with the light is variable,
The power supply unit can supply a drive current for driving each of the light emitting elements to the light emitting elements via the wiring pattern,
The control unit includes a light distribution control unit,
The light distribution control means controls the light distribution three-dimensionally by controlling the drive current for each of the wiring patterns.

According to the present invention, it can be used for a long period of time, and the light distribution can be freely controlled in three dimensions.

FIG. 1 is a block diagram showing the configuration of the lighting fixture of this embodiment. FIG. 2 is a diagram showing an example of a light source unit of the lighting equipment of the present embodiment. The figure (A) shows a perspective view, the figure (B) shows a top view, and the figure (C) shows a front view. FIG. 3 is an explanatory diagram showing an example of an illuminating lamp having the light source unit of FIG. FIG. 4 is a diagram showing another example of the light source unit of the lighting equipment of the present embodiment. The figure (A) shows a perspective view, and the figure (B) shows a bottom view. FIG. 5A is a front view showing another example of the light source unit of the present embodiment. FIG. 5B is an explanatory diagram when a lighting fixture including the light source unit of FIG. 5A is applied as an illumination lamp. FIG. 6A is a front view showing another example of the light source section of the present embodiment. FIG. 6B is an explanatory diagram when a lighting fixture including the light source unit of FIG. 6A is applied as an illumination lamp. FIG. 7A is a front view showing another example of the light source section of the present embodiment. FIG. 7B is an explanatory diagram when the lighting fixture including the light source unit of FIG. 7A is applied as an illumination lamp. FIG. 8 is an explanatory diagram when the lighting fixture of the present embodiment is applied as a pedestrian crossing lamp. FIG. 9 is an explanatory diagram when the lighting fixture of the present embodiment is applied as an indoor lighting lamp. FIG. 10: is another explanatory view at the time of applying the lighting fixture of this embodiment as an indoor illumination lamp. FIG. 11 is an explanatory diagram when the lighting fixture of the present embodiment is applied as a parking lot light with a human sensor. FIG. 12 is an explanatory diagram when the lighting fixture of the present embodiment is applied as a road light. FIGS. 13A and 13B are explanatory views when the lighting fixture of the present embodiment is applied as a crosswalk lighting lamp.

Hereinafter, the lighting fixture of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following description. In addition, in the following FIGS. 1 to 13, the same portions may be denoted by the same reference numerals, and the description thereof may be omitted. Further, in the drawings, for convenience of description, the structure of each part may be simplified as appropriate, and the dimensional ratio and the like of each part may be different from the actual one and may be schematically illustrated.

[Embodiment 1]
FIG. 1 is a block diagram showing the configuration of the lighting fixture of this embodiment. As shown in the figure, the lighting fixture 100 of the present embodiment includes a light source unit 10, a power supply unit 20, and a control unit 30 as main components. The control unit 30 includes a light distribution control unit 40. As shown in the figure, the light source unit 10, the power supply unit 20, and the control unit 30 are electrically connected.

FIG. 2 is a diagram showing an example of the light source unit 10 of the lighting fixture 100 of the present embodiment. The figure (A) shows a perspective view, the figure (B) shows a top view, and the figure (C) shows a front view.

(Light source unit 10)
The light source unit 10 shown in FIGS. 1A to 1C has four flat plate-shaped mounting boards 11 to 14 and nine light emitting elements 21 to 29 arranged on the mounting boards 11 to 14, respectively. There is. As shown in FIGS. 9A to 9C, the mounting boards 11 to 14 are combined to form a rectangular cylindrical three-dimensional shape. Each of the mounting boards 11 to 14 has a substantially inverted trapezoidal shape, as shown in FIGS. Then, the nine light emitting elements are arranged in three lines from the bottom to the top on each of the mounting boards 11 to 14, as shown in FIGS. The three line-shaped light emitting elements 21 to 29 are arranged such that the width between the lines increases from the bottom to the top. Then, the mounting boards 11 to 14 electrically connect the light emitting elements 21 to 29 and the power source section (not shown) to each of the mounting boards 11 to 14 as shown in FIGS. Wiring patterns 41 to 44 for connection are formed.

(Power supply unit 20)
The power supply unit 20 supplies a drive current for driving each of the light emitting elements 21 to 29 to the light emitting elements 21 to 29 via the wiring patterns 41 to 44. Although not shown in FIGS. 1A to 1C, the power supply unit 20 may be provided outside the light source unit 10 in FIG. 1A or inside the light source unit 10. ..

(Control unit 30)
The control unit 30 includes the light distribution control unit 40 as described above. The light distribution control means 40 controls the drive current for each of the wiring patterns 41 to 44. The “controlling the drive current” may be, for example, adjusting the amount of the drive current, or may be adjusting by turning the drive current on or off. Although not shown in FIGS. 1A to 1C, the control unit 30 may be provided outside the light source unit 10 in FIG. 1A or inside the light source unit 10, for example. ..

FIG. 3 is an explanatory diagram showing an example of an illumination lamp 300 having the light source unit 10 of FIG. The light distribution control unit 40 (not shown) is, for example, as shown in the figure, among the four mounting boards 11 to 14, light emitting elements (LEDs) 21 to 29 (not shown) arranged on the mounting board 11. The drive current is controlled to be supplied only to (1). As a result, the light is emitted only to the irradiation area 31A where the light is emitted by the light emitting elements (LEDs) 21 to 29. Further, for example, in the illuminating lamp 300 shown in the figure, the light distribution control means 40 (not shown) is connected to the light emitting elements (LEDs) 21 to 29 (not shown) arranged on the three mounting boards 12 to 14. By controlling the supplied drive current to be small, the irradiation area 31B irradiated by the light emission of the light emitting elements (LEDs) 21 to 29 on the mounting boards 12 to 14 is compared with the irradiation area 31A. Can be controlled weakly. As described above, the lighting device of the present invention can control light distribution without providing a movable portion unlike Patent Document 1. Therefore, the problem of long-term use due to the provision of the movable portion does not occur. Therefore, the present invention enables long-term use. Further, according to the present invention, the orientation can be freely controlled by appropriately changing the wiring pattern. Therefore, according to the present invention, the light distribution control can be freely performed three-dimensionally. Then, according to the present invention, for example, it is possible to adjust the irradiation light according to the preference of a specific irradiation region. Accordingly, for example, when the lighting device of the present invention is provided indoors, the range of lighting design for an indoor room is widened, and it is possible to illuminate various scenes depending on the application. Further, since it is possible to perform appropriate illumination according to the application, unnecessary illumination can be suppressed, and thus power consumption can be suppressed.

In the present embodiment, the shape of the mounting board is not particularly limited as long as it is a three-dimensional shape. The mounting board may have a spherical shape, a hemispherical shape, a columnar shape, a polygonal cylindrical shape such as a square cylindrical shape as shown in FIG. 2, or a cylindrical shape. .. It is preferable that the shape of the mounting board is cylindrical from the viewpoint that light distribution can be controlled more finely, and that the upper opening surface of the mounting board is larger than the lower opening surface. Also, the number of all mounting boards is not particularly limited, and for example, if the shape of the mounting board is spherical or cylindrical, it may be one, or the shape of the mounting board is columnar or polygonal tubular. If so, there may be more than one.

In the present embodiment, the arrangement of the light emitting elements arranged on the mounting board is not particularly limited, but a plurality of light emitting elements can be arranged as shown in FIGS. 2A to 2C because finer light distribution control is possible. The light emitting elements are arranged in a plurality of lines extending from the bottom to the top of the mounting board, and the plurality of line light emitting elements have a width between the lines that increases from the bottom to the top. It is preferably arranged in a state. Further, in FIGS. 2A to 2C, nine light emitting elements 21 to 29 are arranged on each of the mounting boards 11 to 14, but in the present embodiment, the number of light emitting elements is not limited to this. .. It is preferable that the number of the light emitting elements is large in that finer light distribution control can be performed.

If the mounting substrate has a hemispherical shape or a spherical shape, the light emitting elements are arranged radially when viewed from the bottom surface, as shown in FIG. 4, because the light distribution can be controlled more finely. Is preferred. FIG. 4 is a diagram showing an example of a light source section 10B in which a plurality of light emitting elements are radially arranged on a hemispherical mounting substrate 15. FIG. 4A is a perspective view and FIG. ) Is a bottom view. As shown in FIGS. 9A and 9B, a plurality of light emitting elements 17 are arranged radially around the light emitting element 16. By arranging in this way, it is possible to arrange more light emitting elements on the mounting substrate, and it is possible to perform finer light distribution control.

In the present embodiment, the light emitting element is not particularly limited, and examples thereof include an LED (light emitting diode) and an organic EL element (organic electroluminescence element).

In the present embodiment, a plurality of types of LEDs may be used as the LEDs. The plurality of types of LEDs are not particularly limited, and examples thereof include a white LED, a day white LED, a daylight color LED, and a bulb color LED. When the plurality of types of LEDs are used, for example, the light distribution control by the light distribution control unit 40 can adjust the color of the irradiation light of a specific irradiation region according to the taste. Further, in the case of using the plurality of types of light emitting elements, for example, it is possible to irradiate the irradiation light of the specific emission color only to the specific irradiation target area.

The wiring patterns 41 to 44 shown in FIG. 2 electrically connect the light emitting elements 21 to 29 on the respective mounting boards 11 to 14 to the power source unit 20 (not shown). , But not limited to this. For example, as shown in FIGS. 5 to 7, a plurality of wiring patterns may be further provided on each of the mounting boards 11 to 14.

FIG. 5A is a front view showing another example of the lighting fixture of this embodiment. In the light source section 50 shown in the figure, three wiring patterns 51 to 53 are laterally formed on each of the mounting boards 11 to 14. That is, the light emitting elements 21, 26, and 27 are electrically connected by the wiring pattern 51, the light emitting elements 22, 25, and 28 are electrically connected by the wiring pattern 52, and the light emitting element 23, 24 and 29 are electrically connected by a wiring pattern 53. The light source unit 50 shown in the same figure is the same as the light source unit 10 shown in FIG. 2 except that the wiring patterns 51 to 53 are formed.

FIG. 5B is a diagram showing an example of an illuminating lamp 500 having the light source unit 50 of FIG. In the illumination lamp 500 of FIG. 1B, the light distribution control means 40 (not shown) supplies the light to the light emitting elements 21, 26 and 27 (not shown) via the wiring pattern 51 (not shown). The current is increased and the drive current supplied to the light emitting elements 23, 24 and 29 (not shown) via the wiring pattern 53 (not shown) is adjusted to be small. By doing so, as shown in FIG. 6B, the irradiation light amount applied to the remote area 45A in the irradiation area is increased, and the irradiation light amount applied to the vicinity area 45B of the illumination lamp 500 is decreased. be able to. As a result, the glare can be reduced for the human 47 in the near area 45B, and the brighter light can be emitted to the human 48 in the remote area 45A.

FIG. 6A is a front view showing another example of the light source section of the present embodiment. In the light source section 60 shown in the figure, three wiring patterns 56 to 58 are vertically formed on each of the mounting boards 11 to 14. That is, the light emitting elements 21 to 23 are electrically connected by the wiring pattern 56, the light emitting elements 24 to 26 are electrically connected by the wiring pattern 57, and the light emitting elements 27 to 29 are connected by the wiring pattern 58. , Electrically connected. The light source unit 60 shown in the figure is the same as the light source unit 10 shown in FIG. 2 except that the wiring patterns 56 to 58 are formed.

FIG. 6B is a diagram showing an example of an illuminating lamp 600 having the luminaire of FIG. In the illuminating lamp 600 of FIG. 1B, a drive current supplied to the light emitting elements 21 to 23 (not shown) by the light distribution control means 40 (not shown) via the wiring pattern 56 (not shown). The driving current supplied to the light emitting elements 27 to 29 (not shown) via the wiring pattern 58 (not shown) is adjusted to be small. By doing so, as shown in FIG. 9B, it is possible to increase the irradiation light amount applied to the irradiation region 59A in the irradiation region and decrease the irradiation light amount irradiated to the irradiation region 59B. This enables finer light distribution control.

FIG. 7A is a front view showing another example of the light source section of the present embodiment. In the light source unit 70 shown in the figure, 16 light emitting elements 121 to 136 are arranged in four rows in the vertical direction and four rows in the horizontal direction on the mounting boards 11 to 14 shown in FIG. The light emitting elements 121 to 132 in the peripheral portion of the substrate 11 are electrically connected by the wiring pattern 151, and the light emitting elements 133 to 136 inside the substrate 11 are electrically connected by the wiring pattern 152. .. Other than these, it is the same as the light source unit 10 shown in FIG.

FIG. 7B is a diagram showing an example of an illuminating lamp 700 including the luminaire of FIG. In the illuminating lamp 700 of FIG. 6B, the wiring patterns 151 and 152 are formed, so that the irradiation light is separately controlled inside and outside the irradiation area irradiated from the substrate 11. Can be done. Thereby, for example, by making the inside bright and making the outside dark, it is possible to concentrate the irradiation range inside (center side) and perform control like a spotlight.

In the present embodiment, the control unit 30 further includes, for example, a receiving unit that receives an operation signal from a lighting control device or the like, and the light distribution control unit 40 controls the light distribution three-dimensionally according to the operation signal. May be.

Further, the lighting equipment in the present embodiment may perform light distribution control in cooperation with a human sensor, an illuminance sensor, or the like.

In the present embodiment, for example, a protective cover or the like for protecting the light emitting element may be provided if necessary.

The luminaire of the present embodiment is not particularly limited, for example, road lamps, parking lot lights, pedestrian crossing luminaires, indoor luminaires, lighting fixtures for high ceilings such as factories or warehouses It can be used.

The lighting device of the present invention can freely control the light distribution three-dimensionally, and for example, can adjust the irradiation light according to the preference of a specific irradiation region. Therefore, for example, when the lighting device of the present invention is provided indoors, the range of lighting design for an indoor room is widened, and it is possible to illuminate various scenes depending on the application. Further, since it is possible to perform appropriate illumination according to the application, unnecessary illumination can be suppressed, and thus power consumption can be suppressed.

The lighting fixture of the present embodiment has been described above, but an example of the lighting method of the present embodiment will be described below with specific examples.

The illumination method of the present embodiment is characterized in that the illumination device is used to divide an area to be irradiated, and irradiation is performed while controlling at least one of an irradiation light amount and an irradiation light color for each of the divided areas.

In the illumination method according to the present embodiment, light may be irradiated so that only the target area of the divided areas is irradiated with light, or only the target area is not irradiated with light. Further, the target area irradiated with the light may be changed.

Below, the specific example of the said illumination method using the lighting fixture of this invention is demonstrated. However, the lighting method of the present invention is not limited to the following specific examples.

First, the lighting method when the lighting fixture of the present invention is applied as a pedestrian crossing lighting lamp will be described with reference to FIG. In the figure, the irradiation light amount is controlled by dividing the irradiated area into the road side and the sidewalk side.

FIG. 8: is explanatory drawing when the lighting fixture of this invention is applied to the pedestrian crossing lamp. The illumination lamp 600 shown in the figure is the same as the illumination lamp 600 shown in FIG. As shown in the figure, the irradiated area includes a road 62 and a pedestrian crossing 63. Then, the light emitting elements 21 to 23 (hereinafter, referred to as the light emitting element row 1) of the mounting board 11 of the illuminating lamp 600 illuminate the road 62, and the light emitting elements 24 to 26 of the mounting board 11 (hereinafter, referred to as the light emitting element row 2). Illuminates the pedestrian crossing 63. In this case, the light distribution control unit 40 (not shown) adjusts the drive current supplied to the wiring pattern 56 (not shown) electrically connecting the light emitting element columns 1 so as to be small. As a result, only the amount of light emitted by the light emitting element array 1 is adjusted to be smaller than that of the other light emitting elements, so that the roadway 62 is illuminated darker than the illuminated area other than the roadway 62. .. Accordingly, glare on the side of the road 62 can be reduced, so that the driver 64 on the side of the road 62 can easily confirm the pedestrian 65. On the other hand, since the crosswalk 63 illuminated by the light emitting element array 2 is illuminated brightly, a pedestrian such as an elderly person can walk while checking the crosswalk 63 at ease even at night. In this way, when the lighting device of the present invention is applied as a pedestrian crossing lamp, it is possible to illuminate the pedestrian crossing brightly while illuminating the roadway side darkly. As a result, the driver 64 side can be alerted to prevent an accident, and the pedestrian side can safely cross the sidewalk. As described above, the lighting device of the present invention can be suitably used as an illuminating lamp for a pedestrian crossing.

In addition, in the illumination lamp 600 of the present example, it has been described that the road 62 side is darkened, but the illumination lamp 600 of the present example is not limited to this. For example, when a human sensor or the like detects a pedestrian, the drive current supplied to the wiring pattern 56 that electrically connects the light emitting element array 1 may be increased or decreased in a short time. As a result, the amount of light emitted by the light emitting element array 1 changes, and the light emitted on the side of the road 62 is emitted in a blinking manner, so that the driver 64 can be alerted.

As described above, the case where the lighting fixture of the present invention is applied as a lighting fixture for crossing walking is described, but the lighting fixture of the present invention is not limited to this, and is also applied as an indoor lighting fixture at a ceremony such as a graduation hall. It is possible. Below, the case where the lighting fixture of this invention is applied as an indoor illuminating lamp is demonstrated using FIG. In the indoor illumination lamp shown in the figure, the aisle side of the graduate and the guardian seat side are divided to control the irradiation light color.

FIG. 9 is an explanatory diagram when the lighting fixture of the present invention is applied to an indoor lighting lamp. In the light source section of the illuminating lamp 800 shown in the figure, the light emitting elements 22, 25, and 28 (hereinafter, referred to as the light emitting element row 3) of the mounting substrate 12 are white light LEDs, and the other light emitting elements are light bulb color LEDs. The light source unit 50 is the same as the light source unit 50 in FIG. As shown in the figure, the irradiated area includes an entrance passage 91 for graduates and a guardian's seat 92. In the light emitting element array 3, the passage 91 is illuminated with the white light LED, and the other light emitting elements illuminate the guardian seat 92 with the light bulb color LED. In this case, the light distribution control unit 40 (not shown) has a wiring pattern 52 that electrically connects the light emitting element rows 3 and a wiring pattern that electrically connects light emitting elements other than the light emitting element rows 3. 51 and 53 are separately controlled for light distribution. This allows the passage 91 to be illuminated with white light and the guardian's seat 92 to be illuminated with a light bulb color. In this way, the lighting apparatus of the present invention can be applied to an indoor lighting lamp like a spotlight.

In the illuminating lamp 800 of this example, an example of a method of irradiating a specific light emission color (white light) to a specific target area (passage 91) has been described, but the illuminating method of the present invention is not limited to this. For example, as shown in FIG. 10, another illumination lamp 900 may be provided to adjust the color of the irradiation light applied to the passage 91. In the illuminating lamp 900 shown in the figure, the light emitting elements 22, 25, and 28 (hereinafter referred to as the light emitting element row 4) of the mounting substrate 14 are red light LEDs, and the other light emitting elements are light bulb color LEDs. , The same as the light source unit 50 of FIG. Then, the light distribution control means individually controls the light distribution of the light-emitting element array 3 and the light-emitting element array 4, whereby it is possible to adjust the color to reddish white light according to preference. As described above, by using the lighting device of the present invention, it is possible to adjust the color of a specific irradiation (target) area according to preference.

The case where the lighting fixture of the present invention is applied as an indoor lighting has been described above. However, the lighting fixture of the present invention is not limited to this, and is also applicable as a parking lot light with a human sensor, for example. .. Below, the case where the lighting fixture of this invention is applied as a parking lot light with a human sensor is demonstrated using FIG. In the parking lot lamp of the same figure, the target area (human) is irradiated so that the light is irradiated from among the divided areas in the irradiation area.

FIG. 11: is explanatory drawing when the lighting fixture of this invention is applied to the parking lot light with a human sensor. The light source unit 60 of the parking lot light 1000 shown in the figure is the same as the light source unit 60 shown in FIG. The parking lot light 1000 shown in the figure includes a human sensor (not shown), and detects the human 72 by the human sensor. The sensor and the control unit 30 (not shown) are electrically connected to each other, and the light distribution control means 40 (not shown) of the control unit 30 performs the detection in the irradiation area. The light distribution is controlled so that only the area of the human 72 is brightly illuminated. That is, the light distribution control means 40 only supplies the drive current supplied to the wiring pattern 56 (not shown) that electrically connects the light emitting elements 21 to 23 (hereinafter, referred to as the light emitting element row 5) of the mounting substrate 11. By turning on, only the area of the human 72 is illuminated brightly. In this way, the light can be radiated so as to follow only the area where the human is. Thereby, when the lighting fixture of the present invention is used as a parking lot light, unnecessary lighting can be suppressed. For this reason, unnecessary illumination can be suppressed, and power consumption can be suppressed. Further, for example, since light can be emitted so as to chase only a region where a person is present, it can be applied as a parking lot light having a crime prevention function.

In the parking lot light 1000 of this example, an example of a method of illuminating only a region where a person is detected by a human sensor so as to illuminate brightly has been described, but the present invention is not limited to this. For example, the lighting apparatus of the present invention may be used to perform light distribution control so as to illuminate only the vicinity of a car in conjunction with a parking system that can identify a parking place.

Although the case where the lighting fixture of the present invention is applied as a parking lot light has been described above, the lighting fixture of the present invention is not limited to this and can be applied as, for example, a street light. Below, the case where the lighting fixture of this invention is applied as a road light is demonstrated using FIG. In the road light shown in the figure, it is possible to irradiate only the target area (paddy) out of the divided areas in the irradiated area so that the light is not irradiated.

FIG. 12 is an explanatory diagram when the lighting fixture of the present invention is applied as a road light. The light source unit 50 of the road light 1100 shown in the figure is the same as the light source unit 50 shown in FIG. As shown in the figure, the irradiated area includes a roadway 82, a sidewalk 83, and a paddy field 84. The light emitting elements 21 to 29 (hereinafter, referred to as the light emitting element group 6) of the mounting substrate 11 of the light source unit 50 and the light emitting elements 23, 24, and 29 (hereinafter, referred to as the light emitting element row 7) of the mounting substrate 12 are connected to the road 82. And the sidewalk 83 are illuminated, and the light emitting elements 21 to 22, 25 to 28 (hereinafter referred to as the light emitting element group 8) of the mounting substrate 12 illuminate the paddy field 84. In this case, the light distribution control means 40 (not shown) controls to turn off the drive current supplied to the wiring pattern that electrically connects the light emitting element groups 8. Then, as shown in the figure, the light distribution control can be performed so that only the paddy field 84 is not irradiated with light. Thus, for example, by turning off the drive current only at night, it is possible to suppress the light damage of rice cultivation due to night irradiation. Thus, the lighting fixture of the present invention can be suitably used as a road light.

The case where the lighting fixture of the present invention is applied as a road light has been described above. However, the lighting fixture of the present invention is not limited to this, and is also applied as a pedestrian crossing lighting, for example, to be illuminated by light It is also possible to change the area. Below, the case where the lighting fixture of this invention is applied as a pedestrian crossing lamp is demonstrated using FIG. The illumination light for pedestrian crossing in the same figure can change and irradiate the target area to be illuminated (pedestrian crossing), and can guide a person to a specific sidewalk, for example.

Below, the said illumination method at the time of applying the illuminating device of this embodiment as a pedestrian crossing illumination light is demonstrated using FIG.

FIG. 13 is an explanatory diagram when the lighting fixture of the present embodiment is applied as a pedestrian crossing lamp. The light source unit 60 of the illuminating lamp 1200 shown in the figure is the same as the light source unit 60 shown in FIG. As shown in the figure, a crosswalk 92 and a crosswalk 93 are included in the irradiated area. The light emitting elements 24 to 26 (hereinafter referred to as the light emitting element row 9) of the mounting board 11 illuminate the pedestrian crossing 92, and the light emitting elements 24 to 26 (hereinafter referred to as the light emitting element row 10) of the mounting board 12 are pedestrian crossing 93. Irradiate. In the figure (A), the crossing signal 94 is lit in red, and in the figure (B), the crossing signal 94 is lit in blue. In this case, as shown in FIG. 4A, the light distribution control means 40 (not shown) turns on only the drive current supplied to the wiring pattern that electrically connects the light emitting element columns 10. .. As a result, the person 95 can be guided in the direction of the pedestrian crossing 93. On the other hand, in the case of FIG. 3B, the light distribution control means 40 (not shown) turns on only the drive current supplied to the wiring pattern electrically connecting the light emitting element rows 9. As a result, a person can be guided in the direction of the crosswalk 92. In this way, the lighting method of the present embodiment can be used to guide in a specific direction.

In addition, in the illuminating lamp 1200 of the present example, it has been described that only a specific irradiation (target) area is irradiated to guide the light in a specific direction, but the lighting method of the present invention is not limited to this. For example, irradiation may be performed in a specific direction by irradiating irradiation light having different emission colors only on a specific irradiation (target) area.

Although the present invention has been described with reference to the exemplary embodiments, the present invention is not limited to the above exemplary embodiments. Various changes 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.

10, 50, 60, 70 Light source parts 11-14 Mounting board 20 Power supply parts 21-29, 121-136 Light emitting element 30 Control parts 31A, 31B, 59A, 59B Irradiation area 40 Light distribution control means 41-44, 51-53 , 56-58, 151-152 Wiring pattern 45A Remote area 45B Neighboring area 47-48 Human 62 Road 63 Crosswalk 64 Driver 65 Pedestrian 100 Lighting fixture 300, 500, 600, 700, 800, 900, 1100, 1200 Illumination lamp

Claims (10)

Including a light source unit, a power supply unit, and a control unit,
The light source unit includes a three-dimensionally shaped mounting substrate and a plurality of light emitting elements arranged on the mounting substrate, and the mounting substrate electrically connects the light emitting element and the power supply unit. A plurality of wiring patterns for
The wiring pattern, for each mounting substrate, to electrically connect the light emitting elements in at least one of the horizontal and vertical directions to form a light emitting element row and a light emitting element group,
The wiring pattern, by the light emitting element row and the light emitting element group, to divide the area to be irradiated, irradiating while controlling at least one of the irradiation light amount and irradiation light color for each of the divided areas,
Of the divided areas, irradiate so that only the target area is irradiated with light,
The target area irradiated with the light is variable,
The power supply unit can supply a drive current for driving each of the light emitting elements to the light emitting elements via the wiring pattern,
The control unit includes a light distribution control unit,
The light distribution control means controls the light distribution three-dimensionally by controlling the drive current for each of the wiring patterns. The lighting device according to claim 1, wherein the mounting board has a cylindrical shape, and an upper opening of the cylindrical mounting board is larger than a lower opening. The lighting fixture according to claim 2, wherein the tubular mounting substrate is formed by combining a plurality of flat plate-shaped mounting substrates. The lighting device according to claim 3, wherein the mounting board has a rectangular cylindrical shape in which four mounting boards having a flat plate shape are combined. The plurality of light emitting elements are arranged in a plurality of lines extending from the bottom to the top of the mounting board, and the plurality of line light emitting elements are arranged between the lines as the bottom extends from the top. The luminaire according to any one of claims 2 to 4, wherein the luminaire is arranged in a state where the width is widened. The lighting device according to claim 1, wherein the light emitting element is an LED. The lighting fixture according to claim 6, wherein LEDs of a plurality of colors are used as the LEDs. The lighting fixture according to any one of claims 1 to 7, further comprising at least one of a human sensor and an illuminance sensor. Further, the control unit includes a receiving unit,
The receiving means receives an operation signal,
9. The lighting device according to claim 1, wherein the light distribution control unit controls the light distribution three-dimensionally according to the operation signal. The luminaire according to any one of claims 1 to 9 is at least 1 selected from the group consisting of road lights, parking lot lights, pedestrian crossing lights, indoor lighting, and high-ceiling lighting. A lighting method, characterized by being applied to one.

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