WO2020031809A1 - Dispositif d'éclairage et unité d'éclairage - Google Patents

Dispositif d'éclairage et unité d'éclairage Download PDF

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Publication number
WO2020031809A1
WO2020031809A1 PCT/JP2019/030026 JP2019030026W WO2020031809A1 WO 2020031809 A1 WO2020031809 A1 WO 2020031809A1 JP 2019030026 W JP2019030026 W JP 2019030026W WO 2020031809 A1 WO2020031809 A1 WO 2020031809A1
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WIPO (PCT)
Prior art keywords
light
unit
aperture
lighting device
light source
Prior art date
Application number
PCT/JP2019/030026
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English (en)
Japanese (ja)
Inventor
はるか 山崎
覚 岡垣
佑輔 藤井
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201980051465.0A priority Critical patent/CN112534180A/zh
Priority to JP2020535696A priority patent/JP7066304B2/ja
Publication of WO2020031809A1 publication Critical patent/WO2020031809A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices

Definitions

  • the present invention relates to a lighting device and a lighting unit.
  • JP 2013-092616 A (for example, Claim 1, paragraph 0017, FIG. 1)
  • the above-mentioned conventional lighting device illuminates with light transmitted through the display means for displaying an image, so that the configuration of the device is complicated. It is also desired to provide a lighting environment that simulates the insertion of sunlight from a window with a lighting device having a simple configuration.
  • An object of the present invention is to provide a lighting device and a lighting unit which can irradiate light simulating insertion of sunlight with a simple configuration.
  • a lighting device includes a light source unit that emits light, a first light blocking unit, and a first light passage unit, and the first light source out of the light emitted by the light source unit.
  • a first aperture unit that emits light that has passed through the light transmission unit, and a driving unit that moves at least one of the light source unit and the first aperture unit.
  • a lighting unit includes a first lighting device that is the above-described lighting device, and a second lighting device that emits illumination light, wherein the second lighting device includes the second lighting device. Changing the color of the light emitted from the second lighting device such that the color change of the light emitted from the device is synchronized with the color change of the light emitted from the first lighting device. It is characterized by the following.
  • FIG. 1 is a perspective view schematically showing a configuration of a lighting device according to Embodiment 1 of the present invention.
  • FIG. 2 is a longitudinal sectional view schematically showing a configuration of the lighting device according to Embodiment 1.
  • FIG. 3 is a front view schematically showing an aperture unit shown in FIGS. 1 and 2.
  • FIG. 4 is a front view schematically showing another aperture unit shown in FIGS. 1 and 2.
  • FIG. 2 is a functional block diagram schematically showing a configuration of a control system of the lighting device according to Embodiment 1.
  • (A) and (B) are side views which show the structure of the lens shown in FIG. 2 schematically.
  • FIG. 2 is a perspective view schematically showing a state in the room when the lighting device according to Embodiment 1 is installed in a ceiling of the room.
  • FIGS. 3A to 3D are diagrams illustrating a temporal change in the shape of a light irradiation area formed by irradiation light emitted from the illumination device according to the first embodiment.
  • FIG. 3 is a diagram illustrating changes in the shape and brightness distribution of irradiation light emitted from the illumination device according to Embodiment 1.
  • FIG. 3 is a diagram illustrating changes in the shape and brightness distribution of irradiation light emitted from the illumination device according to Embodiment 1.
  • FIG. 9 is a perspective view schematically showing a configuration of a lighting unit according to Embodiment 2 of the present invention.
  • FIG. 9 is a functional block diagram schematically showing a configuration of a control system of a lighting unit according to Embodiment 2.
  • FIG. 10 is a perspective view schematically showing a state in a room when the lighting unit according to Embodiment 2 is installed in a ceiling of the room.
  • FIG. 13 is a perspective view schematically showing a configuration of a lighting device according to Embodiment 3 of the present invention.
  • FIG. 14 is a longitudinal sectional view schematically showing a configuration of a lighting device according to a third embodiment.
  • FIG. 15 is a perspective view schematically showing a state in a room when the lighting device according to Embodiment 3 is installed in a ceiling of the room.
  • FIG. 14 is a diagram showing a change in the shape of a light irradiation area formed by irradiation light emitted from the illumination device according to Embodiment 3.
  • FIG. 14 is a diagram showing a change in the shape of a light irradiation area formed by irradiation light emitted from the illumination device according to Embodiment 3.
  • FIG. 13 is a diagram illustrating a relationship between a configuration of a lighting device according to Embodiment 3 and a shape of irradiation light emitted from the lighting device.
  • FIG. 13 is a perspective view schematically showing a configuration of a lighting device according to Embodiment 4 of the present invention. It is a perspective view which shows roughly the structure of the illuminating device which concerns on Embodiment 5 of this invention.
  • FIG. 15 is a functional block diagram schematically showing a configuration of a control system of the lighting device according to Embodiment 5.
  • FIG. 17 is a perspective view schematically showing a configuration of a lighting unit according to Embodiment 6 of the present invention.
  • FIG. 19 is a perspective view schematically showing a state in a room when the lighting unit according to Embodiment 6 is installed in a ceiling of the room.
  • the figure shows the coordinate axes of the XYZ rectangular coordinate system.
  • the X axis and the Z axis are horizontal coordinate axes.
  • the Y axis is a coordinate axis in the vertical direction (that is, the height direction).
  • coordinate axes of an X 1 Y 1 Z 1 orthogonal coordinate system are shown for easy understanding of the description of the components of the lighting device.
  • the X 1 Y 1 Z 1 rectangular coordinate system is obtained by rotating the XYZ rectangular coordinate system about the X axis.
  • the lighting device is a device that can emit light simulating insertion of sunlight.
  • the lighting device changes one or more of the irradiation position, shape, color, brightness, and the like of irradiation light over time. That is, the irradiation position, shape, color, brightness, and the like of the irradiation light change in accordance with the time change of the actual irradiation position, shape, color, brightness, and the like of sunlight.
  • the irradiation light is, for example, light simulating insertion of sunlight through a window.
  • the lighting device can make a person in a room without a window, a passage without a window, or the like feel an outdoor atmosphere or the passage of time.
  • the lighting device can make a person in a room without a window, a passage without a window, or the like feel a sense of openness.
  • a room without a window includes, for example, a basement.
  • Windowless walkways include, for example, underpasses and underground shopping malls.
  • the plurality of lighting devices when installing a plurality of lighting devices according to the embodiment on the ceiling of a passage, the plurality of lighting devices are arranged with an interval therebetween.
  • the plurality of irradiation lights emitted from the plurality of lighting devices are irradiated on the irradiation object, and as a result, a light irradiation area is formed on the irradiation object.
  • the object to be irradiated is, for example, a wall or a floor of a passage.
  • the plurality of light irradiation areas irradiated with the plurality of irradiation lights emitted from the plurality of lighting devices move with the passage of time.
  • a light irradiation area formed by irradiation light moves along a predetermined route as time passes.
  • the shape of the irradiation light applied to the wall of the passage (that is, the shape of the light irradiation area) changes with the movement of the light irradiation area. Due to the movement of the light irradiation area and the change in the shape, a person who is in a passage without windows can feel as if there are a plurality of windows and sunlight is entering through the plurality of windows. Also, a person in a passage without a window can eliminate a feeling of obstruction, which is a sensation of feeling uncomfortable in a closed narrow space.
  • the lighting device according to the embodiment be installed at a position where it is difficult for a person to see directly.
  • the lighting device according to the embodiment is embedded and mounted on a ceiling.
  • a person who is in the room where the lighting device is installed cannot easily grasp where the insertion light simulated by the irradiation light enters the room.
  • a person in a room in which the lighting device according to the embodiment is installed can obtain a feeling as if sunlight were entering through a window.
  • FIG. 1 is a perspective view schematically showing a configuration of a lighting device 1 according to the first embodiment.
  • FIG. 2 is a longitudinal sectional view schematically showing the configuration of the lighting device according to the first embodiment.
  • the lighting device 1 includes a light source unit 10, an aperture unit 20 as a first aperture unit, and a driving unit 40.
  • the light source unit 10 emits light L1.
  • the aperture section 20 has a light-blocking section 21 as a first light-blocking section that does not allow light to pass therethrough, and a light-passing section 22 as a first light-passing section that passes light.
  • the aperture section 20 emits the light L2 of the light L1 emitted from the light source section 10 that has passed through the light passage section 22.
  • the driving section 40 has a mechanism for moving at least one of the light source section 10 and the aperture section 20.
  • This mechanism is, for example, a driving force transmission mechanism such as a support member that movably supports at least one of the light source unit 10 and the aperture unit 20, a guide member that guides the support member, and a gear that applies force to the support member.
  • a driving force generating mechanism such as a motor that applies a driving force to the driving force transmission mechanism.
  • the mechanism for moving at least one of the light source unit 10 and the aperture unit 20 is not particularly limited.
  • the lighting device 1 includes an aperture unit 30 as a second aperture unit.
  • the aperture section 30 has a light-blocking section 31 as a second light-blocking section that is a section that does not allow light to pass through, and a light-passing section 32 as a second light-passing section that is a section that allows light to pass through.
  • the aperture section 30 emits the light L3 that has passed through the light passing section 32 of the light L2 that has passed through the light passing section 22 of the aperture section 20.
  • the light L3 that has passed through the light passage section 32 of the aperture section 30 is irradiated on, for example, a wall 82 as an irradiation target, and forms a light irradiation area 91 on the wall 82.
  • the illumination device 1 may not include the aperture unit 30.
  • the light L2 that has passed through the light passage section 22 of the aperture section 20 is irradiated on the wall 82 to form a light irradiation area 91 on the wall 82.
  • the driving section 40 may have a mechanism for moving the aperture section 30. That is, the driving unit 40 may have a mechanism for moving one or more of the light source unit 10, the aperture unit 20, and the aperture unit 30.
  • the driving unit 40 moves the light irradiation region 91 by moving at least one of the light source unit 10 and the aperture unit 20 in the X-axis direction, for example.
  • the shape is changed will be described.
  • the direction of the central ray of the light L1 passing through the light passage section 22 is defined as a first direction (that is, the Y 1 axis direction), and is orthogonal to the Y 1 axis direction and the direction parallel to one side a second direction (i.e., X 1 axial direction) and, a direction perpendicular to both the Y 1 axis direction and X 1 axial third direction (i.e., Z 1 axial direction) .
  • the driving unit 40 determines the absolute position of at least one of the light source unit 10 and the aperture unit 20, the relative position between the light source unit 10 and the aperture unit 20, and both the absolute position and the relative position in the second direction. (i.e., X 1 axial direction) is moved in a direction including a component of.
  • the driving unit 40 determines the absolute position of at least one of the light source unit 10 and the aperture unit 20, the relative position between the light source unit 10 and the aperture unit 20, and both the absolute position and the relative position. It may be moved in a direction including a component in one direction (that is, the Y 1 axis direction). Such a function will be described in detail in Embodiments 3 to 6 described below.
  • the lighting device 1 may include a lens 50 as an optical unit between the light source unit 10 and the aperture unit 20.
  • the lens 50 is, for example, a condenser lens.
  • the driving unit 40 includes an absolute position of at least one of the light source unit 10, the aperture unit 20, and the lens 50, a relative position between the light source unit 10, the aperture unit 20, and the lens 50, and the absolute position and the relative position. both, the second direction (i.e., X 1 axial direction) may be provided with a mechanism for moving in a direction including a component of.
  • the driving unit 40 includes an absolute position of at least one of the light source unit 10, the aperture unit 20, and the lens 50, a relative position between the light source unit 10, the aperture unit 20, and the lens 50, and the absolute position and the relative position.
  • a mechanism for moving both of the positions in a direction including a component in the first direction may be provided.
  • the light source unit 10 emits light L1.
  • the light L ⁇ b> 1 is emitted to the irradiation target as light L ⁇ b> 3 through the light passing part 22 of the aperture part 20 and the light passing part 32 of the aperture part 30.
  • the irradiation target is, for example, indoor walls 82 and 83, a floor 84, and the like.
  • the surface of the object to be irradiated with the light L3 is also called an irradiated surface.
  • the light source unit 10 may have a function of changing a light emission color.
  • the light source unit 10 may include a plurality of light sources that emit light of different colors. Further, the light source unit 10 may have a function of changing the light emission intensity.
  • the light source unit 10 preferably includes a semiconductor light source having high luminous efficiency.
  • the semiconductor light source is, for example, a light emitting diode (LED) or a laser diode (LD).
  • the light source unit 10 may include a lamp light source such as an incandescent lamp, a halogen lamp, or a fluorescent lamp. Further, the light source unit 10 may include a solid light source.
  • the solid-state light source includes, for example, an organic electroluminescence (organic EL) or a light source that emits the phosphor by irradiating the phosphor with excitation light.
  • Semiconductor light sources are a type of solid-state light source. In the following description, a case where the light source unit 10 has one or more LED light sources will be described.
  • FIG. 3 is a front view schematically showing the aperture unit 20 shown in FIGS. 1 and 2.
  • aperture means an opening of a frame that limits the size of a screen in an optical device that handles an image.
  • the aperture section 20 is a member having an aperture. That is, the aperture section 20 is a member including the light passing section 22.
  • the aperture unit 20 includes a light-shielding unit 21 that is a plate-shaped light-shielding member, and a light-passing unit 22 that is a trapezoidal opening formed in the light-shielding unit 21.
  • the light passing unit is configured such that the lower bottom 22a, which is the long side of the bottom of the light passing unit 22, is closer to the wall 82, which is the object to be irradiated, and the upper bottom 22b, which is the shorter side, is farther from the wall 82. 22 are formed.
  • the aperture unit 20 blocks a part of the light L1 emitted from the light source unit 10 and passes another part.
  • the aperture which is the light transmitting part 22 of the aperture part 20, has a shape for adjusting the size (that is, size) of the light to be transmitted.
  • the aperture unit 20 is a light distribution forming member that forms a light distribution of the emitted light L2 by passing a part of the light L1 emitted from the light source unit 10 and blocking the other part of the light L1. It is.
  • the aperture unit 20 emits light L2 having a cross section that is long in the X-axis direction and short in the Z-axis direction by blocking a part of the light L1 emitted from the light source unit 10.
  • the light passage section 22 of the aperture section 20 is an opening, but is not limited to the opening.
  • the light passage section 22 may be formed by a light transmissive member.
  • the aperture section 20 includes a base made of a light transmissive member and a light shielding member such as a mask provided in a region to be the light shielding section 21.
  • the light irradiation area 91 corresponding to the shape of the window is formed on the wall 82 by the aperture unit 20.
  • the illumination device 1 forms a light-irradiated area 91 in the shape of a window formed by the aperture section 20 and an aperture section 30 described later on a wall 82 as an object to be irradiated.
  • the shape of the light passage section 22 of the aperture section 20 is not limited to a trapezoidal shape.
  • the X-axis direction is a moving direction of the aperture unit 20 with respect to the light source unit 10.
  • the X-axis direction is, for example, the horizontal direction of the window-shaped light irradiation area 91.
  • the direction of movement of the aperture unit 20 with respect to the light source unit 10 does not have to coincide with the X-axis direction as long as it includes a component in the X-axis direction.
  • the aperture unit 20 may swing on a trajectory that draws a circle around the light source unit 10.
  • a rectangular light irradiation area For example, when light having a rectangular cross section in a direction orthogonal to the central ray is irradiated toward a wall 82 that stands perpendicular to a ceiling 81 on which the lighting device 1 is arranged, a rectangular light irradiation area
  • the side of the cross-sectional shape of the light corresponding to the side extending in the vertical direction in 91 extends, for example, in the horizontal direction (that is, the direction parallel to the ZX plane) at the positions of the aperture units 20 and 30. Further, the position of the light irradiation area 91 (that is, the position of the window-shaped light) moves in the horizontal direction (the X-axis direction in FIG. 2) with the passage of time.
  • the aperture unit 20 partially blocks light that spreads in the X-axis direction, which is the horizontal direction, in the window-shaped light irradiation area 91.
  • the aperture section 20 forms a horizontal edge shape of the illumination light corresponding to the vertical side in the rectangular window shape.
  • the driving unit 40 moves the aperture unit 20 in the X-axis direction corresponding to the horizontal direction of the light irradiation region 91. Accordingly, the horizontal edge shape of the irradiation light corresponding to the vertical side (for example, the sides 22a and 22b in FIG. 3) in the rectangular window shape also moves in the X-axis direction. Moves.
  • the center of the light emitting surface of the light source unit 10 is set as the rotation axis.
  • the light source unit 10 and the aperture unit 20 may be rotated in the X-axis direction. Thereby, the position and shape of the light irradiation area 91 change in the order of FIGS. 8A to 8D described later.
  • FIG. 4 is a front view schematically showing the aperture unit 30 shown in FIGS. 1 and 2.
  • the aperture section 30 is a member having an aperture. That is, the aperture section 30 is a member including the light passing section 32.
  • the aperture unit 30 includes a light shielding unit 31 that is a plate-shaped light shielding member, and a light passing unit 32 that is a rectangular opening formed in the light shielding unit 31.
  • the aperture unit 30 blocks a part of the light L2 emitted from the light source unit 10 and passed through the light transmitting unit 22, and allows the other part to pass.
  • the aperture, which is the light passing section 32 of the aperture section 30, has a shape that adjusts the size (that is, size) of light to be passed.
  • the aperture unit 30 partially blocks light that spreads in the Z-axis direction orthogonal to the X-axis direction.
  • the aperture unit 30 shields part of the light L2 emitted from the aperture unit 20 and emits light L3.
  • the shape of the light illuminated on the wall 82 is not a rectangle, It becomes a trapezoid.
  • the shape of the light passage part 32 (for example, opening) of the aperture part 30 is rectangular.
  • An edge forming a horizontal side of the light having a rectangular cross section is formed by light having a predetermined irradiation range in the Z-axis direction with respect to the center of the optical axis, that is, light having at least a spread in the Z-axis direction.
  • the position of the window-shaped light irradiation area 91 moves in the horizontal direction as time passes.
  • the aperture unit 30 partially blocks light that spreads in the Z-axis direction orthogonal to the X-axis direction.
  • the aperture section 30 forms a vertical edge shape of the illumination light corresponding to the horizontal side in the rectangular window shape.
  • the shape of the irradiation light on the wall 82 formed by the aperture section 30 does not change due to the swing of the aperture section 20 and the light source section 10. Therefore, the shape of the light passage portion 32 of the aperture portion 30 is, for example, a rectangular shape having parallel sides.
  • the aperture unit 30 does not block, for example, light that spreads in the X-axis direction. Partial light blocking of light spreading in the X-axis direction is performed by the aperture unit 20.
  • FIG. 5 is a functional block diagram schematically showing a configuration of a control system of the lighting device 1.
  • the lighting device 1 includes a light source unit 10, a light source driving unit 71 that drives the light source unit 10, and a driving force transmission mechanism such as a gear that moves at least one of the light source unit 10 and the aperture unit 20.
  • a motor 41 as a driving force generating unit that applies a driving force to the motor
  • a motor driving unit 42 such as a motor driving circuit
  • the drive unit 40 changes the absolute position of at least one of the light source unit 10 and the aperture unit 20, the relative position between the light source unit 10 and the aperture unit 20, or both the absolute position and the relative position.
  • the change in the relative position between the light source unit 10 and the aperture unit 20 includes a change in the attitude of the light source unit 10 with respect to the aperture unit 20. That is, if any one of the angle and the position when the light from the light source unit 10 enters the aperture unit 20 is different, it is considered that the relative position between the light source unit 10 and the aperture unit 20 has changed.
  • movement such a change in the absolute position or the relative position is collectively referred to as “movement” of the light source unit 10 or the aperture unit 20.
  • the drive unit 40 moves the aperture unit 20 or the light source unit 10 in the X-axis direction, for example.
  • the drive unit 40 includes a drive circuit for executing the movement of the aperture unit 20 or the light source unit 10, a motor, a gear, or the like.
  • the control unit 72 can change the emission color or emission intensity of the light source unit 10.
  • the control unit 72 can include a circuit for driving the light source unit 10.
  • the light source unit 10 may include a processor that executes a program.
  • the lens 50 condenses the light L1 emitted from the light source unit 10.
  • Condensing refers to collecting light in one place or one direction.
  • the lens 50 reduces the divergence angle of the light L1 emitted from the light source unit 10.
  • the lens 50 changes the light L1 emitted from the light source unit 10 into a light beam close to a parallel light.
  • the divergence angle of the light emitted from the aperture units 20 and 30 is smaller than the divergence angle of the light L1 emitted from the light source unit 10.
  • the divergence angle between the light L2 and the light L3 can be changed depending on the distance from the light source unit 10 to the aperture units 20 and 30 and the sizes of the light passing units 22 and 32 of the aperture units 20 and 30.
  • the size of the lighting device 1 can be reduced.
  • the distance from the light source unit 10 to the aperture units 20 and 30 can be shortened by using the lens 50. Further, by using the lens 50, the light use efficiency of the light L1 emitted from the light source unit 10 can be increased.
  • FIGS. 6A and 6B are side views schematically showing the configuration of the lens 50 as the optical unit shown in FIG.
  • the lens 50 is, for example, a collimator lens.
  • a lens array is provided on the light emitting surface side of the lens 50. Curved surface constituting each lens surface of the lens array may be different radii of curvature in the X 1 axis direction and the Z 1 axial direction.
  • the lens array may employ a toroidal lens surface or a cylindrical lens surface.
  • the drive unit 40 controls the absolute position of at least one of the light source unit 10 and the aperture unit 20, or the relative position between the light source unit 10 and the aperture unit 20, or Change both the absolute position and the relative position. Specifically, the drive unit 40 changes the position of the aperture unit 20 with respect to the light source unit 10. For example, the driving unit 40 changes the position of the aperture unit 20 on a circumference around the light source unit 10. That is, the drive unit 40 swings the aperture unit 20 in the X-axis direction around the light source unit 10. "Wobble" is to wobble.
  • the light source unit 10 may move in the X-axis direction along the aperture unit 20. That is, the light source unit 10 may move in the X-axis direction while keeping a constant distance from the aperture unit 20.
  • the aperture unit 20 may move in the X-axis direction while keeping a constant distance from the light source unit 10. Further, the light source unit 10 may change the attitude in the X-axis direction (that is, the direction of the light emitting surface of the light source unit 10) while keeping the distance from the aperture unit 20 constant.
  • the light L3 is emitted from the light passage section 32 of the aperture section 30 of the illumination device 1 installed on the ceiling 81.
  • Light L3 is irradiation light.
  • the light L3 is applied to a wall 82 as an object to be irradiated.
  • the wall 82 is, for example, an indoor wall.
  • the light irradiation area 91 is an area where the wall 82 is irradiated with the light L3.
  • the light irradiation area 91 is, for example, rectangular.
  • FIGS. 8A to 8D are diagrams showing changes in the shape of the light irradiation area 91 on the wall 82 of the light L3 radiated from the light passage portion 32 of the ceiling 81 by the lighting device 1.
  • the upper side is the ceiling 81 side
  • the lower side is the floor 84 side.
  • the right side is the east side
  • the left side is the west side.
  • FIG. 8B corresponds to a time in the middle of the sun.
  • the shape of the window projected on the wall 82 (that is, the shape of the light irradiation area 91) changes.
  • the positional relationship between the side of the aperture section 20 on the X-axis direction side and the light source section 10 changes, as shown in FIGS. 8A to 8D, the left and right sides of the light irradiation area 91 of the light L3 are exposed.
  • the slope of the side changes.
  • the shape of the light irradiation region 91 of the irradiated light L3 changes from the parallelogram shown in FIG. 8A to the rectangle shown in FIG. 8B, and then changes to the shape shown in FIG.
  • the rectangle changes from the illustrated rectangle to the parallelogram illustrated in FIG.
  • the shape of the emitted light L3 is, for example, similar to the shape of the sun's insertion light inserted from an opening such as a window.
  • the shape of the light L3 is, for example, linked to the time change of the actual sunlight.
  • the positional relationship between the aperture unit 20 and the light source unit 10 changes in conjunction with the actual time change of sunlight.
  • the color or intensity of the light of the light source unit 10 changes, for example, in conjunction with the actual time change of sunlight.
  • the light source unit 10 emits strong white light L1.
  • the light source unit 10 emits the weak red light L1. Therefore, the viewer can feel that the light L3 is the insertion light of the sunlight.
  • FIG. 9 is a diagram illustrating a result obtained by simulating a brightness distribution of a light irradiation area at the time.
  • the distance from the light source unit 10 to the aperture unit 20 is defined as a distance A1.
  • the distance from the aperture unit 20 to the aperture unit 30 is defined as a distance A2.
  • the distance from the light source unit 10 to the object to be irradiated is referred to as a distance A3.
  • the light L ⁇ b> 3 is irradiated on the irradiation target vertically.
  • the distance A1 and the distance A2 are set so as to satisfy the following three conditions even while the light source unit 10 and the aperture unit 20 are being driven.
  • the size of the light passing portion 22 of the aperture section 20 in the X-axis direction is smaller than the size of the light beam of the light L1 at the position of the aperture section 20. That is, the side on the X-axis direction side of the light passage section 22 of the aperture section 20 blocks a part of the light L1.
  • the size of the light passing portion 32 of the aperture portion 30 in the Z-axis direction orthogonal to the X-axis direction is smaller than the size of the light beam of the light L2 at the position of the aperture portion 30. That is, the side of the light passing portion 32 of the aperture portion 30 on the Z-axis direction orthogonal to the X-axis direction blocks a part of the light L2.
  • the shape of the light flux of the light L3 is determined by partially blocking the light L1 by the light blocking unit 21 of the aperture unit 20 and partially blocking the light L2 by the light blocking unit 31 of the aperture unit 30.
  • the cross-sectional shape of the light L3 formed by the partial light blocking of the aperture unit 20 and the partial light blocking of the aperture unit 30 is formed inside the cross-sectional shape of the light beam of the light L1.
  • the side of the light beam in the X-axis direction partially shielded by the aperture unit 20 and the side of the light beam in the Z-axis direction orthogonal to the X-axis direction partially shielded by the aperture unit 30 are on the irradiation target. Are in a meeting.
  • the divergence angle of the light L3 emitted from the aperture unit 20 will be described by simulation.
  • the shape of the irradiation light on the irradiation target in the part partially shielded by the aperture unit 20 is evaluated. Therefore, the aperture section 30 is not arranged.
  • the simulation conditions are as follows.
  • the light distribution of the light source unit 10 is a Lambertian light distribution.
  • Lambertian light distribution is light distribution in which the luminance of the light emitting surface is constant regardless of the viewing direction.
  • the light source unit 10 includes, for example, an LED as a light source.
  • the distance A1 is 10 mm.
  • the distance A3 is 200 mm.
  • the width of the aperture section 20 in the X-axis direction is 228 mm.
  • the divergence angle of the light L2 in the X-axis direction is 170 degrees. That is, the aperture unit 20 partially blocks the light L2 having a divergence angle of 170 degrees or more emitted from the light source unit 10.
  • the divergence angle emitted from the aperture section 20 is 170 degrees or less, the shape of the light-shielding section 21 of the aperture section 20 is projected onto the irradiation target.
  • the divergence angle emitted from the aperture section 20 is larger than 170 degrees, the reproducibility of the shape of the projected aperture section 20 decreases.
  • the shape of the irradiation light on the object to be irradiated in the portion that is partially shielded by the aperture section 20 has a rounded shape. More optimally, when the divergence angle emitted from the aperture section 20 is 90 degrees or less, the shape of the light-shielding portion of the aperture section 20 is more clearly projected onto the irradiation target.
  • ⁇ 1-3 Effect As described above, according to the lighting device 1 of the first embodiment, it is possible to irradiate light simulating insertion of sunlight with a simple configuration.
  • FIG. 11 is a perspective view schematically showing a configuration of a lighting unit 2 according to the second embodiment. 11, the same or corresponding components as those shown in FIG. 1 are denoted by the same reference numerals as those shown in FIG.
  • FIG. 12 is a functional block diagram schematically showing a configuration of a control system of lighting unit 2 according to the second embodiment. 12, the same or corresponding components as those shown in FIG. 5 are denoted by the same reference numerals as those shown in FIG.
  • FIG. 13 is a perspective view schematically showing a state in the room when the lighting unit 2 is installed in the ceiling 81 of the room. 13, components that are the same as or correspond to the components shown in FIG. 7 are denoted by the same reference numerals as those shown in FIG.
  • the lighting unit 2 includes a lighting device 1 (also referred to as a “first lighting device”) according to the first embodiment and another lighting device 1a (“second lighting device”).
  • the lighting device 1a is a device that can simulate a blue sky, for example.
  • the lighting device 1a emits blue light. That is, the light emitting surface of the lighting device 1a is blue. Blue light is generated using, for example, Rayleigh scattering.
  • the lighting device 1a has, for example, a rectangular light emitting surface.
  • the lighting device 1a is, for example, a device that displays a scene outside a window. An observer under the lighting device 1a can feel as if he / she is looking at the blue sky through the skylight by looking at the light emitting surface of the lighting device 1a.
  • the lighting device 1 is disposed between the lighting device 1a and the wall 82.
  • the wall 82 is an irradiation target to which the lighting device 1 emits light.
  • the shape of the light irradiation area 91 of the light L3 applied to the wall 82 is determined based on the shape of the illumination device 1a that simulates a skylight.
  • the size of the light irradiation area 91 of the light L3 applied to the wall 82 is determined based on the size of the lighting device 1a.
  • the position and size of the light irradiation area 91 formed by the light L3 irradiated on the wall 82 are determined. You. In other words, the shape and size of the light passing portion 22 of the aperture section 20 and the shape and size of the light passing portion 32 of the aperture portion 30 are determined.
  • the lighting device 1a changes the color of the light emitted from the lighting device 1a such that the color change of the light emitted from the lighting device 1a is synchronized with the color change of the light emitted from the lighting device 1. That is, the change in the color of the light emitted from the lighting device 1a is synchronized with the change in the color of the light emitted from the lighting device 1a.
  • the color of light emitted from the lighting device 1a and the color of light emitted from the lighting device 1 do not need to be the same.
  • the color or shape of the light L3 emitted from the lighting device 1 also changes over time.
  • the change in the color of the light L3 is linked to, for example, the color of sunlight that changes with time.
  • the illumination device 1a changes the emission intensity or the color of the emission light, for example, with the deformation of the illumination light of the illumination device 1. For example, at the time of the evening, the light emitted from the lighting device 1a changes from blue to orange.
  • the control unit 72 controls, for example, the lighting device 1a.
  • the light L ⁇ b> 3 is emitted from the aperture unit 30 of the lighting device 1 installed on the ceiling 81.
  • the light irradiation area 91 of the light L3 applied to the wall 82 has, for example, a shape obtained by deforming the shape of the illumination device 1a.
  • the light L3 emitted from the illumination device 1 is linked with the illumination light emitted from the illumination device 1a, so that the observer feels that the light L3 is light inserted from the illumination device 1a.
  • the observer feels that the light L3 emitted from the light passage portion 32 of the illumination device 1 is emitted from the illumination device 1a.
  • the observer feels the blue sky by looking at the lighting device 1a, and feels the sunlight by looking at the light L3 emitted by the lighting device 1.
  • Circadian rhythm is a 24-hour mechanism that adjusts the rhythm of the day so that it wakes up during the day and sleeps at night.
  • Embodiment 3 The lighting device 1 according to Embodiment 1 has a function of setting the degree of “bleeding” or “blurring” at a boundary between a region irradiated with sunlight and a region not irradiated with sunlight. Not. Lighting device 3 according to Embodiment 3 has a simple configuration and adjusts the degree of “bleeding” or “blurring” at a boundary between a region irradiated with sunlight and a region not irradiated with sunlight. it can.
  • FIG. 14 is a perspective view schematically showing a configuration of lighting device 3 according to Embodiment 3. 14, components that are the same as or correspond to the components shown in FIG. 1 are given the same reference numerals as those shown in FIG.
  • FIG. 15 is a longitudinal sectional view schematically showing a configuration of lighting device 3 according to Embodiment 3. 15, the same or corresponding components as those shown in FIG. 2 are denoted by the same reference numerals as those shown in FIG.
  • the driving unit 60 is configured such that the driving unit 60 has at least one of the absolute position of the light source unit 10 and the aperture unit 20, or the relative position between the light source unit 10 and the aperture unit 20, or the absolute position. wherein both the relative position in terms of changing the Y 1 axis direction is different from the illumination device 1 shown in FIGS. 1 and 2.
  • the lighting device 3 according to the third embodiment differs from the lighting device 1 shown in FIGS. 1 and 2 in that the lighting device 3 does not include the aperture unit 30.
  • FIG. 16 is a perspective view schematically showing a state in the room when lighting device 3 is installed in ceiling 81 of the room.
  • the same or corresponding components as those shown in FIG. 7 are denoted by the same reference numerals as those shown in FIG. 17 and 18 are diagrams showing changes in the shape of a light irradiation area formed by irradiation light emitted from the lighting device 3.
  • FIG. FIG. 19 is a diagram showing the relationship between the configuration of the illumination device 3 and the shape of the irradiation light.
  • Driving unit 60 the distance between the light source portion 10 and the aperture section 20, i.e., the optical axis of the light source portion 10 and an aperture unit 20 (i.e., Y 1 axial direction) to change the position of the.
  • the drive unit 60, the relative position of the aperture portion 20 and the light source unit 10 may be changed in Y 1 axially.
  • the drive unit 60 includes a drive circuit, a motor, a gear, or the like for changing a relative position between the aperture unit 20 and the light source unit 10.
  • the driving unit 60 can change the emission color or emission intensity of the light source unit 10.
  • the driving unit 60 can include a circuit for driving the light source unit 10.
  • 17 and 18 are diagrams illustrating, for example, a change in the shape of the light irradiation area on the wall 82 of the light L2 irradiated from the ceiling 81 by the illumination device 1.
  • the upper side is the ceiling 81 side
  • the lower side is the floor 84 or the ground side.
  • the dotted line in the figure indicates the height at which the wall 82 crosses the ceiling 81.
  • heading toward the wall 82 shown in FIGS. 17 and 18 corresponds to a case where there is a window on the back side.
  • the shape of the light irradiation area is changed to 18 from 17.
  • the shape of the light L2 is a shape obtained by projecting the shape of the window.
  • FIG. 17 corresponds to a state in which the sun is not covered with clouds.
  • the divergence angle is large becomes light L2 of the light is partially shielded by the aperture portion 20 has a shape which diffused light is irradiated.
  • FIG. 18 corresponds to the case where the sun is hidden by the clouds.
  • the color or intensity of light of the light source unit 10 changes, for example, due to the transition between fine and cloudy. For example, when there is no cloud on the sun, the light source unit 10 emits light L1 having a strong color temperature and a low color. Then, when the sun is hidden by the clouds, the light source unit 10 emits weak white light L1. Therefore, the observer can feel that the light L2 is the insertion light of the sunlight.
  • the light that has passed through the light passage section 22 of the aperture section 20 forms a light irradiation area 92 on a wall 82 as an irradiation target.
  • the size and blurring of the light irradiation area 92 are determined by the relationship between the size of the light source unit 10, the position of the light passing unit 22 of the aperture unit 20, and the wall 82 as the irradiation object.
  • the light L2 that has passed through the light passage section 22 of the aperture section 20 is irradiated perpendicularly to a wall 82 as an irradiation target.
  • the size of the vertical side of the light irradiation area 92 in the X-axis direction and the amount of blur in that direction are as follows, as follows: the size of the light source unit 10, the position of the aperture unit 20, and the wall 82 as the irradiation object. It depends on the relationship.
  • optical axis plane a plane extending in the X-axis direction passing through the center of the light irradiation area 92 in the Y-axis direction and the center of the light source unit 10 (hereinafter, referred to as “optical axis plane”) will be considered.
  • the width B 2 of the light irradiation region 92 as shown in Figure 19, the light passing portion 22 end of the aperture portion 20 the light emitted from the end portion of the light emitting surface of the light source unit 10 is at its end side direction
  • the position where the light passes through the area C is defined as an end of the light irradiation area 92.
  • B 1 a 1 ⁇ d 1 / c 1 (1)
  • B 2 ⁇ 2b 1 ⁇ (c 1 + d 1 ) / c 1 ⁇ + a 1 (2)
  • the relationship between the width B 2 and the blur width B 1 of the irradiation region 92, B 1 / B 2 ⁇ 0 . is preferably 5, more preferably a B 1 / B 2 ⁇ 0.1.
  • the blur width B 1 and the width B 2 of the light irradiation area 92 increase as the distance c 1 increases.
  • the width B 1 blur When the width B 1 blur is large enough, the width of the X-axis direction of the light irradiation region 92 spreads, the light irradiation region 92 is felt to be due to diffused light. For this reason, the person looks at the light irradiation area 92 and feels as if the sunlight when the sun was hidden by the clouds had entered.
  • the blur width in the Y-axis direction of the horizontal sides of the irradiation region 92 size also blur width B 1 is the same as that. Note that the above relationship is not limited to the X-axis direction and the Y-axis direction.
  • the boundary of the light irradiation region formed by the aperture section 20 partially blocking the light. Can be applied to the size in the light spreading direction and the amount of blur in that direction.
  • the driving unit 60 may change the width B 1 blurred over time.
  • the drive unit 60 by changing the d 1 or c 1 or both of these, it is possible to change the blur width B 1.
  • the drive unit 60 has a mechanism capable of controlling the height position of the light source unit 10, the height position of the aperture unit 20, the height position of the aperture unit 30, or all of them in addition to the movement control described above. Is also good.
  • the drive unit 60 may have a mechanism that can change the position of the aperture unit 30 with respect to the light source unit 10 in addition to the position of the aperture unit 20 with respect to the light source unit 10.
  • the blur By using the blur, a person (that is, an observer) under the lighting device 3 can be made to feel that the light L2 is the insertion light of sunlight.
  • At least one of the light source unit 10, the aperture unit 20, and the lens 50 is parallel to the ZX plane ( For example, it may have a function of moving in the X-axis direction).
  • FIG. 20 is a perspective view schematically showing a configuration of lighting device 4 according to Embodiment 4. 20, the same or corresponding components as those shown in FIG. 14 are denoted by the same reference numerals as those shown in FIG. Illumination device 4 according to Embodiment 4 is different from illumination device shown in FIG. 14 in that aperture unit 30 as a second aperture unit is further provided between aperture unit 20 and wall 82 as an object to be irradiated. 3 is different.
  • the aperture unit 30 is the same as that described in the first embodiment. Except for this point, the fourth embodiment is the same as the third embodiment.
  • the light L3 arriving at the light irradiation area 93 is transmitted through the light passing portion 22 of the aperture portion 20 and the light passing portion 32 of the aperture portion 30 to form a window in the wall 82.
  • the shape of the light irradiation area 93 is determined.
  • the drive unit 60 can cause blur at the end of the light irradiation area 93 by moving at least one of the light source unit 10 and the aperture unit 20 in the optical axis direction.
  • the fourth embodiment is the same as the third embodiment.
  • FIG. 21 is a perspective view schematically showing a configuration of lighting device 5 according to Embodiment 5.
  • 21 components that are the same as or correspond to the components shown in FIG. 20 are given the same reference numerals as those shown in FIG.
  • FIG. 22 is a functional block diagram schematically illustrating a configuration of a control system of the lighting device 5.
  • 22 components that are the same as or correspond to the components shown in FIG. 5 are denoted by the same reference numerals as those shown in FIG.
  • the lighting device 5 according to the fifth embodiment further includes a light diffuser 25 that diffuses light between the aperture unit 20 and the aperture unit 30 and a light diffuser driving unit 26 that is a circuit for driving the light diffuser 25.
  • the light diffuser 25 is, for example, a liquid crystal panel or a plate-like member having electrochromic characteristics. "Electrochromic” refers to the property of reversibly changing color when an electric current or voltage is applied to a certain substance.
  • the light diffuser 25 is arranged on an optical path in the lighting device 5.
  • the light diffuser 25 is provided inside the opening, which is the light passing part 22 of the aperture part 20, between the light source part 10 and the aperture part 20, between the aperture part 20 and the aperture part 30, and the light passing part of the aperture part 30. It is arranged at any one or more positions inside the opening 32 and between the aperture section 30 and the wall 82 as the irradiation target.
  • the light diffuser 25 is formed of, for example, a material that changes at least one of light diffusivity, light transmissivity, and color when a voltage is applied.
  • the light diffuser 25 When the light diffuser 25 is transparent and has no light diffusing property, the light irradiation area 94 formed by the light L3 is rectangular, and it is possible to make a person feel that the sun is not hidden by the clouds.
  • the light diffuser 25 has a light diffusing property, the light diffuser 25 serves as a light emitting surface, and the light irradiation area 94 formed by the light L3 is not a rectangle but has a shape wider than the rectangle. This can make a person feel that the sun is hidden by the clouds, that is, the sun is shading.
  • the light diffuser 25 is, for example, a light diffuser, a light transmissive, and a diffuser plate or a diffuser sheet, a cotton, a paper, or a material formed of a material that changes at least one of colors by applying a voltage. It may be configured by a combination or the like.
  • the light diffuser 25 When the light diffuser 25 is on the optical path of the lighting device 5, the light applied to the light diffuser 25 is diffused, and the light diffuser 25 becomes a part of the light exit surface. As a result, part or all of the illuminating light is diffused, and it is possible to make the observer feel that the sun is hidden by the clouds or that there is a tree outside the window.
  • the fifth embodiment is the same as the third or fourth embodiment.
  • FIG. 23 is a perspective view schematically showing a configuration of a lighting unit 6 according to the sixth embodiment.
  • components that are the same as or correspond to the components shown in FIG. 20 are denoted by the same reference numerals as those shown in FIG.
  • the lighting unit 6 according to the sixth embodiment is obtained by adding another lighting device 1a to the lighting device 5 according to the fifth embodiment.
  • Illumination device 1a is the same as illumination device 1a according to the second embodiment shown in FIG.
  • FIG. 24 is a perspective view schematically showing a state in the room when lighting unit 6 is installed in ceiling 81 of the room.
  • components that are the same as or correspond to the components shown in FIG. 13 are given the same reference numerals as those shown in FIG.
  • the lighting unit 6 includes the lighting device 4 according to Embodiment 4 and another lighting device 1a.
  • the illumination device 1a is, for example, the same as that described in the second embodiment, which is a device capable of simulating a blue sky.
  • light L3 arriving at light irradiation area 94 is shaped like a window in wall 82 by light passage section 22 of aperture section 20 and light passage section 32 of aperture section 30.
  • the shape of the light irradiation area 93 is determined.
  • the drive unit 60 can cause blur at the end of the light irradiation area 93 by moving at least one of the light source unit 10 and the aperture unit 20 in the optical axis direction.
  • the sixth embodiment is the same as the third to fifth embodiments.
  • the term indicating the positional relationship between components or the shape of the components is used to include a range that takes into account manufacturing tolerances, assembly variations, and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

Dispositif d'éclairage (1) comprenant : une unité source de lumière (10) pour générer une lumière (L1) ; une première unité ouverture (20) ayant une première partie de protection contre la lumière (21) et une première partie de transmission de lumière (22), et à travers laquelle est émise une lumière (L2) qui est de la lumière provenant de la lumière (L1) générée par l'unité source de lumière (10) qui a traversé la première partie de transmission de lumière (22) ; et une unité d'entraînement (40) pour amener l'unité source de lumière (10) et/ou la première unité ouverture (20) à se déplacer.
PCT/JP2019/030026 2018-08-07 2019-07-31 Dispositif d'éclairage et unité d'éclairage WO2020031809A1 (fr)

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CN201980051465.0A CN112534180A (zh) 2018-08-07 2019-07-31 照明装置及照明单元
JP2020535696A JP7066304B2 (ja) 2018-08-07 2019-07-31 照明装置及び照明ユニット

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