WO2019235428A1 - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
WO2019235428A1
WO2019235428A1 PCT/JP2019/021999 JP2019021999W WO2019235428A1 WO 2019235428 A1 WO2019235428 A1 WO 2019235428A1 JP 2019021999 W JP2019021999 W JP 2019021999W WO 2019235428 A1 WO2019235428 A1 WO 2019235428A1
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WO
WIPO (PCT)
Prior art keywords
cover
light
pattern
light source
point light
Prior art date
Application number
PCT/JP2019/021999
Other languages
French (fr)
Japanese (ja)
Inventor
真 蓮尾
克佳 出戸
拓 速水
Original Assignee
パナソニックＩｐマネジメント株式会社
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 パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2019235428A1 publication Critical patent/WO2019235428A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material

Definitions

  • the present disclosure relates to a lighting device.
  • illumination devices have not only a function of illuminating the surroundings but also a function as indirect illumination for illuminating a ceiling or the like.
  • a first light source substrate that includes a plurality of LED elements as a main light source and irradiates light
  • a second light source substrate that includes a plurality of LED elements as a sub-light source and irradiates light.
  • the first light source substrate is arranged to emit light downward
  • the second light source substrate is arranged to emit light upward.
  • This disclosure provides a lighting device that can project a pattern onto a construction material such as a wall or a ceiling.
  • an illumination device includes a point light source that emits light, a translucent portion that transmits light emitted from the point light source, and light emitted from the point light source.
  • a pattern cover disposed behind the point light source, and translucent, disposed in front of the pattern cover and the point light source, diffusing light from the rear and front And a diffusion cover for emitting light.
  • a pattern can be projected on a construction material such as a wall or a ceiling.
  • FIG. 1 is a perspective view showing a lighting apparatus according to Embodiment 1.
  • FIG. FIG. 2 is an exploded perspective view showing the lighting apparatus according to Embodiment 1.
  • FIG. FIG. 3 is a cross-sectional view showing the illumination apparatus according to Embodiment 1 taken along line III-III in FIG.
  • FIG. 4 is a plan view illustrating a pattern cover of the lighting apparatus according to the first embodiment.
  • FIG. 5 is a plan view illustrating a pattern cover of the lighting apparatus according to the first embodiment.
  • FIG. 6 is a plan view illustrating a pattern cover of the lighting apparatus according to the first embodiment.
  • FIG. 1 is a perspective view showing a lighting apparatus according to Embodiment 1.
  • FIG. FIG. 2 is an exploded perspective view showing the lighting apparatus according to Embodiment 1.
  • FIG. 3 is a cross-sectional view showing the illumination apparatus according to Embodiment 1 taken along line III-III in FIG.
  • FIG. 4 is a plan view illustrating a pattern cover of the
  • FIG. 7 is an explanatory diagram illustrating a state of light shielded by the light shielding portion when the pattern cover is arranged in parallel to the ceiling surface in the illumination device using the LED bulb according to the comparative example.
  • FIG. 8 is an explanatory view exemplifying the state of light shielded by the light shield when the pattern cover is arranged in parallel with the ceiling surface in the illumination device using the point light source.
  • FIG. 9 is an explanatory view exemplifying the state of light shielded by the light shielding unit when the pattern cover is arranged in parallel to the ceiling surface in the apparatus according to the present embodiment.
  • FIG. 10 is a perspective view showing the lighting device according to Embodiment 1 when only the point light source is turned on.
  • FIG. 10 is a perspective view showing the lighting device according to Embodiment 1 when only the point light source is turned on.
  • FIG. 11 is a cross-sectional view showing a lighting device according to a modification of the first embodiment.
  • FIG. 12 is a perspective view showing the lighting apparatus according to Embodiment 2.
  • FIG. 13 is an exploded perspective view showing the lighting apparatus according to Embodiment 2.
  • FIG. 14 is a cross-sectional view showing the lighting apparatus according to Embodiment 2 along the line XIV-XIV in FIG.
  • FIG. 15 is a perspective view showing when the lighting apparatus according to Embodiment 2 is turned on.
  • FIG. 16 is a perspective view of a system including a plurality of lighting devices according to a modification.
  • the direction in which the diffusion cover is disposed with respect to the translucent support cover is made to coincide with the Z-axis direction
  • the width direction of the lighting device is made to coincide with the X-axis direction.
  • these associations do not limit the posture at the time of manufacturing or using the lighting device according to the present disclosure.
  • the X axis plus direction side indicates the arrow direction side of the X axis
  • the X axis minus direction side indicates the opposite side to the X axis plus direction side. The same applies to the Y-axis direction and the Z-axis direction.
  • FIG. 1 is a perspective view showing a lighting apparatus 1 according to Embodiment 1.
  • FIG. 1 is a perspective view showing a lighting apparatus 1 according to Embodiment 1.
  • the lighting device 1 can perform main lighting and indirect lighting such as construction materials such as walls and ceilings, and is a ceiling light, for example.
  • the lighting device 1 is connected to an external power source through a mounting adapter that engages with an indoor wiring device such as a hook ceiling provided on the construction material, and is used by being fixed at a predetermined position on the construction material.
  • a circular shape in plan view will be described as an example.
  • the shape is not limited to this, and for example, a polygonal shape, a semicircular shape, or the like is used. Can also be applied.
  • FIG. 2 is an exploded perspective view showing the lighting device 1 according to the first embodiment.
  • FIG. 3 is a cross-sectional view showing lighting apparatus 1 according to Embodiment 1 taken along line III-III in FIG.
  • the illuminating device 1 is the fixture main body 3, the translucent support cover 30, the pattern cover 40, the mounting base 50, the point light source 52, the diffusion cover 70, and the unillustrated.
  • a control circuit and a power supply unit are included.
  • the instrument body 3 includes an exterior cover 101, a first base member 110, a second base member 120, a light emitting module 130, and a light source cover 140.
  • the exterior cover 101 constitutes a part of the outer shell of the instrument body 3.
  • the exterior cover 101 is a ring-shaped member having a circular container shape in plan view and having an opening formed in the central portion.
  • the outer cover 101 fixes the diffusion cover 70 at the outer peripheral portion and engages with the first base member 110 at the inner peripheral portion.
  • the material of the exterior cover 101 is a cover that does not transmit light (opaque), and is, for example, a resin such as ABS resin or polycarbonate.
  • the first base member 110 is disposed on the inner peripheral portion of the exterior cover 101.
  • the first base member 110 is an annular member having an opening at the center.
  • the 1st base member 110 has the collar part 111 formed in the outer peripheral part.
  • the first base member 110 is fixed to the exterior cover 101 by a fixing member such as a screw, for example.
  • the flange 111 protrudes inward from the opening of the exterior cover 101 and overlaps with the inner peripheral portion of the exterior cover 101.
  • the first base member 110 is fixed to the outer cover 101 by the fixing member passing through the flange 111 and the inner peripheral portion of the outer cover 101 and screwing.
  • the second base member 120 is disposed on the inner peripheral portion of the first base member 110 and is fixed to the first base member 110.
  • the second base member 120 is a circular container-like member in plan view.
  • the second base member 120 has a flange 111 that engages with the inner peripheral side of the first base member 110.
  • the second base member 120 is made of a metal such as aluminum, iron, galvanized steel plate, etc., and has a light blocking function for blocking light.
  • the second base member 120 supports the light emitting module 130.
  • the light emitting module 130 is mounted on the surface of the second base member 120 on the Z axis minus direction side.
  • the second base member 120 has heat dissipation and is thermally connected to the light emitting module 130 so as to dissipate heat generated by the light emitting module 130.
  • the first base member 110 and the second base member 120 are made of a light blocking material that does not transmit light.
  • the first base member 110 and the second base member 120 constitute a shield.
  • the shield has a light shielding property.
  • the shield is disposed in a posture that partitions the light-transmitting support cover 30, the pattern cover 40, the point light source 52, the light emitting module 130, and the diffusion cover 70.
  • a first space K ⁇ b> 1 configured by the shield and the translucent support cover 30 and a second space K ⁇ b> 2 configured by the shield, the exterior cover 101, and the diffusion cover 70 are formed by the shield. .
  • the shield blocks light that passes between the first space K1 and the second space K2.
  • the light emitting module 130 is annular.
  • the light emitting module 130 includes a plurality of LED (Light Emitting Diode) light sources 131 and a substrate 132.
  • LED Light Emitting Diode
  • the LED light source 131 emits light to be emitted from the illumination device 1 and causes the light to enter the diffusion cover 70 via the light source cover 140.
  • the LED light source 131 is a so-called SMD (Surface Mount Device) type LED element.
  • the SMD type LED element is a package type LED element in which an LED chip (light emitting element) is mounted in a resin-molded cavity, and a phosphor-containing resin is sealed in the cavity.
  • the LED light source 131 is turned on and off under the control of a control unit (not shown) provided in the power supply unit.
  • the LED light source 131 is controlled by a control unit provided in the power supply unit to perform dimming and toning.
  • a surface-mounted LED element that emits white light by a combination of a blue LED chip and a yellow phosphor-containing resin is employed as the LED light source 131.
  • the LED light source 131 may be a straight tube fluorescent lamp, a laser diode, or the like instead of the LED element.
  • the substrate 132 is a mounting substrate for mounting the plurality of LED light sources 131, and is, for example, a ceramic substrate, a resin substrate, an insulating-coated metal base substrate, or the like.
  • a pair of electrode terminals (a positive electrode terminal and a negative electrode terminal) for receiving DC power for causing the LED light source 131 to emit light from outside is formed on the substrate 132.
  • the two substrates 132 form an annular shape that is the shape of the light emitting module 130.
  • the light source cover 140 covers the entire light emitting surface of the light emitting module 130.
  • the light source cover 140 is annular and has a shape and size corresponding to the light emitting module 130.
  • the light source cover 140 transmits light emitted from the plurality of LED light sources 131 included in the light emitting module 130.
  • the light source cover 140 diffuses (scatters) the light emitted from the plurality of LED light sources 131.
  • the light source cover 140 is fixed to the surface of the second base member 120 on the Z-axis minus direction side by a fixing member so as to cover the inner peripheral portion and the outer peripheral portion of each light emitting module 130.
  • the material of the light source cover 140 is, for example, a resin having translucency such as polystyrene, polycarbonate, or acrylic.
  • the translucent support cover 30 has a frustum shape, and the Z-axis minus direction side is open.
  • the translucent support cover 30 is not limited to a truncated cone shape, and may be a polygonal truncated cone shape.
  • the translucent support cover 30 is an example of a translucent cover.
  • the translucent support cover 30 is disposed so as to cover the opening of the exterior cover 101 from the Z-axis plus direction side, that is, disposed behind the pattern cover 40.
  • the translucent support cover 30 is fixed to the first base member 110 with the outer peripheral portion engaging with the flange 111 of the first base member 110.
  • the translucent support cover 30 substantially supports the instrument body 3 when the lighting device 1 is installed on the construction material.
  • the translucent support cover 30 includes a flat plate portion 31 and a first translucent portion 32.
  • the material of the translucent support cover 30 is, for example, a resin having translucency such as polystyrene, polycarbonate, or acrylic. Note that the rear corresponds to the Z-axis negative direction side.
  • the flat plate portion 31 is a portion that is electrically connected to the mounting adapter and has a disk shape.
  • the flat plate portion 31 may be formed of a resin having flame retardancy and electrical insulation.
  • the flat plate portion 31 is provided with a mounting table 50 on which the point light source 52 is mounted.
  • the first translucent part 32 has translucency, and transmits light transmitted through the pattern cover 40, that is, light emitted from the light emitting module 130 through the pattern cover 40.
  • the first light transmitting portion 32 has a truncated cone shape that spreads outward from the outer peripheral portion of the flat plate portion 31 when viewed in cross section in the XZ plane.
  • the outer peripheral portion of the first light transmitting portion 32 is engaged with the flange portion 111 of the first base member 110.
  • the material of the 1st translucent part 32 is resin which has translucency, such as a polystyrene, a polycarbonate, an acryl, for example.
  • the XZ plane here means a plane defined by the X-axis direction and the Z-axis direction, and the same applies to other cases where the XX plane is described.
  • the pattern cover 40 transmits the light emitted from the light emitting module 130, and allows the transmitted light to enter the first light transmitting part 32.
  • the pattern cover 40 forms a frustum shape that is inclined outward from the outer peripheral portion of the flat plate portion 31 when viewed in cross section in the XZ plane.
  • the pattern cover 40 may be a film on which a pattern is printed.
  • the pattern cover 40 has a truncated cone shape, but is not limited thereto, and may be a polygonal truncated cone shape.
  • the pattern cover 40 surrounds the point light source 52 and is arranged so that the diameter of the frustum decreases as the distance from the light source increases.
  • the pattern cover 40 is disposed between the instrument body 3 and the translucent support cover 30 and faces the first translucent part 32 of the translucent support cover 30 with a gap.
  • the pattern cover 40 has an end on the Z axis plus direction side supported by the outer peripheral portion of the flat plate portion 31, and an end on the Z axis minus direction side supported by the second base member 120.
  • the pattern cover 40 is covered with the translucent support cover 30 when the lighting device 1 is viewed from the positive direction of the Z axis, and is covered with the diffusion cover 70 when the lighting device 1 is viewed from the negative direction of the Z axis.
  • the pattern cover 40 is disposed behind the point light source 52.
  • the pattern cover 40 includes a second light transmitting portion 42 and a light shielding portion 43.
  • the second light transmitting part 42 transmits light emitted from the point light source 52.
  • the material of the second light transmitting part 42 is a resin having a light transmitting property such as polystyrene, polycarbonate, acrylic, or the like.
  • the light shielding unit 43 has a light shielding property to block the light emitted from the point light source 52.
  • the light shielding part 43 may be formed by printing a light shielding material on the second light transmitting part 42, or the light shielding part 43 and the second light transmitting part 42 may be integrally formed by extrusion molding.
  • the light shielding portion 43 may be formed on any surface of the second light transmitting portion 42.
  • the material of the light shielding portion 43 may be a highly reflective resin that reflects light emitted from the point light source 52, or a light absorbing material that absorbs light emitted from the point light source 52.
  • a material formed of a hard white resin material such as polybutylene terephthalate may be used, or a material formed with a metal reflective film such as silver or aluminum may be used.
  • the second light transmitting part 42 or the light shielding part 43 forms a predetermined pattern.
  • the pattern may have any shape and is not particularly limited.
  • the pattern may be a geometric pattern, for example.
  • a predetermined pattern shown in FIGS. 4 to 6 is formed on the pattern cover 40.
  • FIG. 4 is a plan view illustrating the pattern cover 40a of the lighting device 1 according to the first embodiment.
  • the pattern cover 40a includes a second light transmitting portion 42a and a light shielding portion 43a.
  • FIG. 5 is a plan view illustrating the pattern cover 40b of the lighting device 1 according to the first embodiment.
  • the pattern cover 40b includes a second light transmitting part 42b and a light shielding part 43b.
  • FIG. 6 is a plan view illustrating the pattern cover 40c of the lighting device 1 according to the first embodiment.
  • the pattern cover 40c includes a second light transmitting part 42c and a light shielding part 43c. Note that the pattern of the pattern cover 40 of the present embodiment is different from the patterns of FIGS.
  • the predetermined pattern may be a geometric pattern in which one or more types of shapes are arranged according to a certain rule, or may be a pattern in which irregular shapes are combined. Note that the predetermined patterns shown in FIGS. 4 to 6 are merely examples, and are not limited to FIGS. 4 to 6, and other patterns may be used.
  • the mounting table 50 is a columnar member that extends in the negative Z-axis direction from the surface on the pattern cover 40 side of the flat plate portion 31 of the translucent support cover 30.
  • the mounting table 50 has a mounting surface 50a on which the substrate 51 on which the point light source 52 is mounted is mounted at the lower end on the Z axis minus direction side.
  • a lead wire for supplying power to the point light source 52 is provided inside the mounting table 50.
  • the mounting table 50 has a heat dissipation property and is thermally connected to the point light source 52 so as to dissipate heat generated by the point light source 52.
  • the mounting table 50 is made of a metal such as aluminum, iron, or galvanized steel sheet.
  • the point light source 52 is disposed on the mounting surface 50 a of the mounting table 50 through the substrate 51, and is disposed between the pattern cover 40 and the diffusion cover 70.
  • the point light source 52 is a module having a light emitting diode.
  • the point light source 52 may have the same configuration as the LED light source 131 and the substrate 132 described above.
  • the point light source 52 is mounted on the substrate 51 in such a direction as to irradiate light in the negative Z-axis direction.
  • the point light source 52 faces the second base member 120 and is arranged in a posture that emits light toward the pattern cover 40.
  • the point light source 52 needs to be regarded as a point with respect to the pattern cover 40, when the construction material is irradiated with light transmitted through the pattern cover 40, a pattern of light and shadow is clearly projected onto the construction material. Just do it.
  • the light emitting surface of the point light source 52 is 1/5 of the length in the width direction of the pattern cover 40 (inclined in the Z-axis direction). In the following, the relationship is more preferably 1/10 or less. The reason why the point light source 52 is used in this embodiment will be described later.
  • the diffusion cover 70 is a cover that has translucency and diffuses light.
  • the diffusion cover 70 constitutes a part of the outline of the lighting device 1.
  • the diffusion cover 70 covers the instrument body 3 and the light emitting module 130.
  • the diffusion cover 70 is fixed to the outer peripheral portion of the exterior cover 101. That is, the diffusion cover 70 is disposed in front of the pattern cover 40 and the point light source 52.
  • the diffusion cover 70 is formed in a flat dome shape having a gently curved surface on the light emission side of the light emitting module 130 so as to protrude in the negative direction of the Z axis toward the center.
  • the front corresponds to the Z-axis plus direction side.
  • each light source cover 140 coincides with the central axis O.
  • the control circuit has an electronic circuit for adjusting DC power output from the power supply unit to the light emitting module 130 and the point light source 52.
  • the control circuit controls operations such as lighting, extinguishing, dimming, and toning of the light emitting module 130 and the point light source 52 in accordance with control signals from a remote controller or the like.
  • the control circuit realizes these operations by a microcomputer, a processor, or the like, or a dedicated circuit that controls the current value supplied to the light emitting module 130 and the point light source 52 according to the input control signal.
  • the power supply unit is housed in a metal box and houses a board on which circuit components such as a lighting circuit are mounted.
  • a power cable from a commercial AC power supply is connected to the power supply unit, and the commercial AC power is supplied to the lighting circuit.
  • the power supply unit is electrically connected to the control circuit.
  • FIG. 7 is an explanatory view exemplifying the state of light shielded by the light shielding portion when the pattern cover is arranged in parallel with the ceiling surface in an illumination device using an LED bulb.
  • FIG. 7 as a comparative example, when an LED bulb is used instead of a point light source, for example, a part of the light emitted from the point H1 on the upper side of the LED bulb is shielded by the light shielding portion, and the remaining light is left. Passes through the pattern cover and is projected onto the ceiling. Further, part of the light emitted from the lower point H2 of the LED bulb is shielded by the light shielding portion, and the rest passes through the pattern cover and is projected onto the ceiling surface.
  • a part of the light emitted from the point H1 on the upper side of the LED bulb is shielded by the light shielding portion, and the remaining light is left. Passes through the pattern cover and is projected onto the ceiling. Further, part of the light emitted from the lower point H2 of the LED bulb is shielded by the light shielding portion, and the rest passes through the pattern cover and is projected onto the ceiling surface.
  • the area of the light emitted from the LED bulb is large, even if the pattern is projected on the ceiling surface by the light emitted from the point H1, the shadow portion of the pattern formed by the light emitted from the point H1 Light emitted from the point H2 is illuminated.
  • the pattern projected on the ceiling surface is blurred, and a person cannot clearly recognize the pattern.
  • FIG. 8 is an explanatory view exemplifying the state of light shielded by the light shielding portion when the pattern cover is arranged in parallel with the ceiling surface in an illumination device using a point light source.
  • the height of the pattern cover with respect to the ceiling surface is A
  • the height of the point light source with respect to the mounting table is B
  • the radius of the pattern cover is C.
  • the point light source is set to a predetermined height from the mounting table, in other words, the height B must be set to a predetermined value or more.
  • the pattern projected on the construction material only needs to be larger than the illumination device when the illumination device is viewed in plan view.
  • the horizontal width of the light and shadow pattern projected on the construction material is 1.5 which is the lateral width of the illumination device. It may be twice or more.
  • FIG. 9 is an explanatory view exemplifying the shadow of the light shielding portion formed by light when the pattern cover is arranged in an inclined posture with respect to the ceiling surface in the apparatus according to the present embodiment.
  • the angle between a virtual straight line V parallel to the ceiling surface and the direction of light incident on the light shielding part closest to the point light source is defined as ⁇ .
  • the angle ⁇ is set under the same conditions as in FIG. In this case, the size of the light and shadow pattern projected on the ceiling surface by the light emitted from the illumination device 1 in FIG. 8 and the size of the pattern projected on the ceiling surface by the light emitted from the illumination device in FIG. Are the same.
  • the diameter of the lighting device increases because the pattern cover is horizontally arranged on the ceiling surface, but in FIG. 9, the pattern cover is inclined with respect to the ceiling surface. Therefore, it is possible to suppress an increase in the diameter of the lighting device.
  • FIG. 10 is a perspective view showing when only the point light source 52 of the lighting apparatus 1 according to Embodiment 1 is turned on.
  • the lighting device 1 can be used as normal lighting.
  • the light emitted from the light emitting module 130 enters the diffusion cover 70 through the light source cover 140 and is transmitted through the diffusion cover 70. Thereby, the diffused light is emitted from the diffusion cover 70.
  • the light emitting module 130 and the point light source 52 can be turned on simultaneously.
  • the light source module 130 is shielded from light by the first base member 110 and the second base member 120 between the point light source 52 and the light emitting module 130, when only the point light source 52 is lit, the point light source 52. In the case where only the light emitting module 130 is lit, the light emitted from the light emitting module 130 is not emitted from the translucent support cover 30.
  • the illumination device 1 includes the point light source 52 that emits light, the translucent part that transmits light emitted from the point light source 52, and the light shielding that blocks light emitted from the point light source 52. And a pattern cover 40 disposed behind the point light source 52, and having translucency, disposed in front of the pattern cover 40 and the point light source 52, and diffusing light from the rear to the front And a diffusion cover 70 that emits light.
  • the lighting device 1 When the lighting device 1 is installed on a construction material, when the point light source 52 is turned on, the light emitted from the point light source 52 is incident on the pattern cover 40, a part of the light is blocked by the light blocking portion 43, and the remaining light is transmitted. Translucent light. Of the light emitted from the point light source 52, a shadow is formed on the portion shielded by the light shielding portion 43. Thereby, the light transmitted through the pattern cover 40 projects the pattern onto the construction material.
  • a pattern can be projected onto a construction material such as a wall or a ceiling.
  • the diffusion cover 70 is disposed in front of the pattern cover 40 and the point light source 52, the pattern cover 40 is hidden by the diffusion cover 70. Thereby, since it becomes difficult to see the pattern of the pattern cover 40 when the lighting device 1 is turned off, it is difficult for a person to feel uncomfortable.
  • the pattern cover 40 is frustum shape.
  • the pattern cover 40 surrounds the point light source 52 and is arranged so that the diameter of the frustum decreases as the distance from the point light source 52 increases.
  • the pattern cover 40 since the pattern cover 40 has a truncated cone shape, the pattern cover 40 is inclined with respect to the Z-axis direction when the cross section when the lighting device 1 is cut in the XZ plane is viewed in cross section. . Therefore, the pattern corresponding to the pattern cover 40 can be projected onto the construction material in a wider range than when the pattern cover 40 is parallel to the XY plane.
  • the lighting device 1 is further disposed behind the pattern cover 40, and transmits light toward the diffusion cover 70, and a translucent support cover 30 that emits light transmitted through the pattern cover 40.
  • the light emitting module 130 that emits light, the translucent support cover 30, the pattern cover 40, the point light source 52, the light emitting module 130, and the diffusion cover 70 are arranged in a posture to partition, and the light emitting module 130 is provided on the surface on the diffusion cover 70 side.
  • the diffusion cover 70 covers the light emitting module 130 and diffuses and emits the light emitted from the light emitting module 130 at the rear.
  • a shield has light-shielding property.
  • the shielding body does not emit light emitted from the point light source 52 from the diffusion cover 70 and only the light emitting module 130 is turned on.
  • the emitted light is transmitted through the pattern cover 40 and the translucent support cover 30, and the pattern is not projected onto the construction material.
  • normal illumination and indirect illumination can be performed separately or simultaneously.
  • the pattern cover 40 is arranged in such a manner that the pattern of the pattern cover 40 cannot be seen through the diffusion cover 70 when the illumination device 1 is viewed when the light is turned off.
  • FIG. 11 is a cross-sectional view showing a lighting device 11 according to a modification of the first embodiment.
  • the point light source 352 is disposed on the second base member 120.
  • the mounting table 50 is not provided in this modification.
  • the other structure in the illuminating device 11 of this Embodiment is the same as that of Embodiment 1 unless otherwise specified,
  • symbol is attached
  • the point light source 352 is disposed at the central portion of the surface of the second base member 120 of the shield on the Z axis plus direction side. In this modification, it is arranged in the center line shape of the illumination device 11 and coincides with the optical axis emitted by the point light source 352.
  • the optical axis is parallel to the Z-axis direction.
  • the point light source 352 is disposed so as to emit light toward the Z-axis plus direction.
  • the substrate 351 of the point light source 352 is thermally connected to the second base member 120.
  • the point light source 352 is disposed on the shield in a posture that emits light toward the pattern cover 40.
  • the point light source 352 can be disposed on the second base member 120 (a part of the shield). Thereby, since the point light source 352 can be directed to the pattern cover 40, the light emitted from the point light source 352 can be easily emitted toward the pattern cover 40. For this reason, it becomes easy to ensure the light quantity of the light which permeate
  • Embodiment 2 The configuration of the illumination device 201 of this embodiment is different from that of the embodiment in that it does not have the light emitting module 130 of the first embodiment.
  • the other structure in the illuminating device 201 of this Embodiment is the same as that of Embodiment 1 unless otherwise specified, and about the same structure, the same code
  • FIG. 12 is a perspective view showing the illumination device 201 according to the second embodiment.
  • FIG. 13 is an exploded perspective view showing the lighting apparatus 201 according to the second embodiment.
  • FIG. 14 is a cross-sectional view showing lighting apparatus 201 according to Embodiment 2 taken along line XIV-XIV in FIG.
  • the illumination device 201 includes an exterior cover 210, a pattern cover 220, a housing 230, a mounting table 50, a point light source 252, a diffusion cover 260, and a control circuit (not shown). And a power supply unit (not shown).
  • the exterior cover 210 constitutes a part of the outer shell of the lighting device 201.
  • the exterior cover 210 is a ring-shaped member having a circular vessel shape in plan view and having an opening formed in the center portion.
  • the exterior cover 210 is disposed between the diffusion cover 260 and the pattern cover 220 and supports the diffusion cover 260 so as to cover the pattern cover 220.
  • the exterior cover 210 supports a pattern cover 220 that covers the opening.
  • the outer cover 210 fixes the diffusion cover 260 at the outer peripheral portion and engages with the pattern cover 220 at the inner peripheral portion.
  • the material of the exterior cover 210 is a cover that does not transmit light (opaque), and is, for example, a resin such as ABS resin or polycarbonate.
  • the exterior cover 210 is an example of a support.
  • the pattern cover 220 is disposed so as to cover the opening of the exterior cover 210.
  • the outer periphery of the pattern cover 220 is fixed to the inner periphery of the exterior cover 210.
  • the pattern cover 220 has a shape corresponding to the shape of the opening of the exterior cover 210.
  • the pattern cover 220 has a disk shape, but the shape is not limited to a circle, and may be a polygonal shape.
  • the pattern cover 220 has an opening 220a formed in the center portion.
  • the inner peripheral portion of the pattern cover 220 is engaged with the housing 230, and the pattern cover 220 is fixed to the housing 230.
  • the pattern cover 220 includes a light shielding part 221 and a second light transmitting part 222.
  • a light shielding portion 221 is printed on the surface on the Z-axis plus direction side or the surface on the Z-axis minus direction side of the pattern cover 220.
  • the light shielding unit 221 forms a pattern that blocks light emitted from the point light source 252.
  • the pattern cover 220 may be overlaid with a transparent cover as a separate member.
  • the pattern cover 220 may be disposed on the surface on the Z-axis plus direction side or the surface on the Z-axis minus direction side of the transparent cover.
  • the pattern cover 220 may have a shape corresponding to the transparent cover.
  • the housing 230 houses a control circuit and a power supply unit.
  • the housing 230 is a bottomed cylinder that is open at both ends.
  • the casing 230 is long in the Z-axis direction, and the edge portion on the Z-axis minus direction side is engaged with the pattern cover 220.
  • Inside the housing 230 a mounting table 50 that protrudes in the negative Z-axis direction from the bottom portion is disposed. The mounting table 50 is inserted through the opening 220 a of the pattern cover 220.
  • the point light source 252 is mounted on the mounting surface 50 a at the lower end of the mounting table 50 on the minus side of the Z axis via the substrate 251.
  • the point light source 252 is disposed between the diffusion cover 260 and the pattern cover 220.
  • the point light source 252 protrudes in the negative Z-axis direction from the pattern cover 220 when placed on the placement surface 50a.
  • the point light source 252 exists in a position overlapping with the diffusion cover 260 when the illumination device 201 is viewed from the side surface in the Z-axis direction.
  • the point light source 252 may exist at a position overlapping the outer cover 210 or may exist at a position overlapping the diffusion cover 260 and the outer cover 210.
  • the diffusion cover 260 covers the point light source 252 and the pattern cover 220.
  • the diffusion cover 260 is fixed to the outer peripheral portion of the exterior cover 210.
  • the diffusion cover 260 has a predetermined haze so that the pattern drawn on the pattern cover 220 is not visible when the lighting device 201 is viewed from the negative Z-axis direction. Since the pattern of the pattern cover 220 may be visible on the diffusion cover 260 depending on the distance between the diffusion cover 260 and the pattern cover 220, the cloudiness is such that the pattern cannot be seen. Even if the cloudiness is low, the pattern on the pattern cover 220 cannot be seen if the pattern cover 220 is separated from the diffusion cover 260 by a predetermined distance. For this reason, the illumination device 201 prevents the pattern of the pattern cover 220 from being visually recognized by the relationship between the cloudiness of the diffusion cover 260 and the distance between the pattern cover 220 and the diffusion cover 260.
  • the diffusion cover 260 may be subjected to a popping process on the surface of the base material, or a prism sheet on which irregularities of a fine structure are formed may be attached to the surface of the base material.
  • a translucent member having a light emitting property may be included, or a translucent member in which an infinite number of bubbles are formed on a base material.
  • the light emitted from the point light source 252 is incident on the pattern cover 220, part of which is shielded by the light shielding part 221, and the rest passes through the second light transmitting part 42 of the pattern cover 220 and becomes a construction material. Project.
  • the light transmitted through the pattern cover 220 is applied to the construction material. Thereby, as shown in FIG. 15, the pattern corresponding to the pattern cover 220 is projected on the construction material.
  • the light emitted from the point light source 252 enters the diffusion cover 260 and is transmitted through the diffusion cover 260. Thereby, the diffused light is emitted from the diffusion cover 260.
  • the lighting device 201 illuminates the surroundings and projects a pattern corresponding to the pattern cover 220 onto the construction material.
  • FIG. 15 is a perspective view illustrating the lighting device 201 according to Embodiment 2 when it is turned on.
  • the illumination device 201 further includes a support that is disposed between the diffusion cover 260 and the pattern cover 220 and supports the diffusion cover 260 that covers the pattern cover 220.
  • the point light source 252 is disposed between the diffusion cover 260 and the pattern cover 220.
  • a support body interrupts the light which the point light source 252 emits.
  • the lighting device 201 When the lighting device 201 is installed on the construction material, when the point light source 252 is turned on, part of the light emitted from the point light source 252 is incident on the diffusion cover 260 and is transmitted through the diffusion cover 260. Accordingly, the diffused light is emitted from the diffusion cover 260 to illuminate the surroundings. Another part of the light is shielded by the light shielding part 221 of the pattern cover 220, and the remaining light is transmitted through the light transmitting part of the pattern cover 220. Of the light emitted from the point light source 252, a shadow is formed by the portion shielded by the light shielding unit 221, so that the pattern is projected onto the construction material by the light transmitted through the pattern cover 220.
  • this lighting device 201 a pattern can be projected onto construction materials such as walls and ceilings.
  • the pattern cover 40 may be parallel to the XY plane.
  • the pattern cover 40 In the relationship between the pattern cover 40 and the point light source 52, if the point light source 52 is brought close to the pattern cover 40, the pattern projected on the ceiling surface can be enlarged, but if it is too close, the pattern is projected on the ceiling surface. In some cases, the height of the point light source 52 with respect to the pattern cover 40 falls within a predetermined range.
  • FIG. 16 shows a system in the case where the lighting devices according to the above-described first and second embodiments and the modified example of the first embodiment are installed and lit in the room. By installing these lighting devices 1 and 201, various lighting environments can be produced.
  • FIG. 16 is a perspective view of a system including a plurality of lighting devices 1 and 201 according to a modification.
  • the pattern cover may be configured by only the light shielding portion.
  • the second light transmitting part is a cavity.
  • a 2nd light transmission part is not limited to a transparent material, You may mean the opening formed in a pattern cover.
  • the pattern cover is detachable, and the pattern cover can be appropriately replaced.

Abstract

A lighting device (1) comprises: a point light source (52) that emits light; a patterned cover (40) that is positioned to the rear of the point light source (52) and has a translucent section transmitting the light emitted from the point light source (52) and a light blocking section (43) blocking the light emitted from the point light source (52); and a diffusing cover (70) that is translucent, is positioned to the front of the patterned cover (40) and the point light source (52), and diffuses the light coming from the rear and emits the result to the front.

Description

照明装置Lighting device
　本開示は、照明装置に関する。 The present disclosure relates to a lighting device.
　従来、照明装置において、単に周囲を照明する機能だけでなく、天井等を照明する間接照明としての機能を搭載した照明装置が知られている。例えば、特許文献１の照明装置では、複数のＬＥＤ素子を主光源として備えて光を照射する第１の光源基板と、複数のＬＥＤ素子を副光源として備えて光を照射する第２の光源基板とを有する。第１の光源基板が下向きに光を照射するように配置され、第２の光源基板が上向きに光を照射するように配置されている。 2. Description of the Related Art Conventionally, illumination devices are known that have not only a function of illuminating the surroundings but also a function as indirect illumination for illuminating a ceiling or the like. For example, in the illumination device of Patent Document 1, a first light source substrate that includes a plurality of LED elements as a main light source and irradiates light, and a second light source substrate that includes a plurality of LED elements as a sub-light source and irradiates light. And have. The first light source substrate is arranged to emit light downward, and the second light source substrate is arranged to emit light upward.
特開２０１７－２０８１６０号公報Japanese Unexamined Patent Publication No. 2017-208160
　本開示は、壁、天井等の造営材に模様を投影することができる照明装置を提供する。 This disclosure provides a lighting device that can project a pattern onto a construction material such as a wall or a ceiling.
　上記目的を達成するために、本開示の一形態に係る照明装置は、光を発する点光源と、前記点光源の発した光が透光する透光部と、前記点光源の発した光を遮る遮光部とを有し、前記点光源の後方に配置される模様カバーと、透光性を有し、前記模様カバー及び前記点光源の前方に配置され、後方からの光を拡散して前方に出射する拡散カバーとを備える。 In order to achieve the above object, an illumination device according to an embodiment of the present disclosure includes a point light source that emits light, a translucent portion that transmits light emitted from the point light source, and light emitted from the point light source. A pattern cover disposed behind the point light source, and translucent, disposed in front of the pattern cover and the point light source, diffusing light from the rear and front And a diffusion cover for emitting light.
　本開示の照明装置では、壁、天井等の造営材に模様を投影することができる。 In the lighting device of the present disclosure, a pattern can be projected on a construction material such as a wall or a ceiling.
図１は、実施の形態１に係る照明装置を示す斜視図である。FIG. 1 is a perspective view showing a lighting apparatus according to Embodiment 1. FIG. 図２は、実施の形態１に係る照明装置を示す分解斜視図である。FIG. 2 is an exploded perspective view showing the lighting apparatus according to Embodiment 1. FIG. 図３は、図１のＩＩＩ－ＩＩＩ線における実施の形態１に係る照明装置を示す断面図である。FIG. 3 is a cross-sectional view showing the illumination apparatus according to Embodiment 1 taken along line III-III in FIG. 図４は、実施の形態１に係る照明装置の模様カバーを例示する平面図である。FIG. 4 is a plan view illustrating a pattern cover of the lighting apparatus according to the first embodiment. 図５は、実施の形態１に係る照明装置の模様カバーを例示する平面図である。FIG. 5 is a plan view illustrating a pattern cover of the lighting apparatus according to the first embodiment. 図６は、実施の形態１に係る照明装置の模様カバーを例示する平面図である。FIG. 6 is a plan view illustrating a pattern cover of the lighting apparatus according to the first embodiment. 図７は、比較例に係り、ＬＥＤ電球を用いた照明装置に係り、模様カバーを天井面と平行に配置した場合の遮光部で遮光される光の様子を例示した説明図である。FIG. 7 is an explanatory diagram illustrating a state of light shielded by the light shielding portion when the pattern cover is arranged in parallel to the ceiling surface in the illumination device using the LED bulb according to the comparative example. 図８は、点光源を用いた照明装置に係り、模様カバーを天井面と平行に配置した場合の遮光部で遮光される光の様子を例示した説明図である。FIG. 8 is an explanatory view exemplifying the state of light shielded by the light shield when the pattern cover is arranged in parallel with the ceiling surface in the illumination device using the point light source. 図９は、本実施の形態に係る装置において、模様カバーを天井面と平行に配置した場合の遮光部で遮光される光の様子を例示した説明図である。FIG. 9 is an explanatory view exemplifying the state of light shielded by the light shielding unit when the pattern cover is arranged in parallel to the ceiling surface in the apparatus according to the present embodiment. 図１０は、実施の形態１に係る照明装置の点光源だけの点灯時を示す斜視図である。FIG. 10 is a perspective view showing the lighting device according to Embodiment 1 when only the point light source is turned on. 図１１は、実施の形態１の変形例に係る照明装置を示す断面図である。FIG. 11 is a cross-sectional view showing a lighting device according to a modification of the first embodiment. 図１２は、実施の形態２に係る照明装置を示す斜視図である。FIG. 12 is a perspective view showing the lighting apparatus according to Embodiment 2. FIG. 図１３は、実施の形態２に係る照明装置を示す分解斜視図である。FIG. 13 is an exploded perspective view showing the lighting apparatus according to Embodiment 2. FIG. 図１４は、図１２のＸＩＶ－ＸＩＶ線における実施の形態２に係る照明装置を示す断面図である。FIG. 14 is a cross-sectional view showing the lighting apparatus according to Embodiment 2 along the line XIV-XIV in FIG. 図１５は、実施の形態２に係る照明装置の点灯時を示す斜視図である。FIG. 15 is a perspective view showing when the lighting apparatus according to Embodiment 2 is turned on. 図１６は、変形例に係る複数の照明装置を備えるシステムに関する斜視図である。FIG. 16 is a perspective view of a system including a plurality of lighting devices according to a modification.
　以下、本開示の実施の形態について、図面を参照しながら説明する。以下で説明する実施の形態は、いずれも包括的又は具体的な例を示すものである。以下の実施の形態で示される数値、形状、材料、構成要素、構成要素の配置位置及び接続形態、ステップ、ステップの順序等は、一例であり、本開示を限定する主旨ではない。また、以下の実施の形態における構成要素のうち、独立請求項に記載されていない構成要素については、任意の構成要素として説明される。 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Each of the embodiments described below shows a comprehensive or specific example. The numerical values, shapes, materials, constituent elements, arrangement positions and connection forms of the constituent elements, steps, order of steps, and the like shown in the following embodiments are merely examples, and are not intended to limit the present disclosure. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims are described as arbitrary constituent elements.
　なお、各図は、模式図であり、必ずしも厳密に図示されたものではない。また、各図において、実質的に同一の構成に対しては同一の符号を付しており、重複する説明は省略又は簡略化する。 Each figure is a schematic diagram and is not necessarily shown strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, The overlapping description is abbreviate | omitted or simplified.
　また、以下の実施の形態の説明及び請求の範囲において、平行または中央等の、１以上の物体の姿勢または位置等を示す表現が用いられる場合があるが、これらの表現は、厳密にはその姿勢または位置等ではない場合も含む。例えば、平行とは、完全に平行であることを意味するだけでなく、実質的に平行である場合、すなわち、例えば数％程度の差異を含むことも意味する。２以上の情報または物体の関係を示す、同一、直交または均一等の表現についても同じである。 Further, in the following description of the embodiments and claims, expressions indicating the posture or position of one or more objects such as parallel or center may be used, but these expressions are strictly This includes cases that are not postures or positions. For example, parallel means not only that it is completely parallel, but also that it is substantially parallel, that is, includes a difference of, for example, several percent. The same applies to expressions such as the same, orthogonal, and uniform that indicate the relationship between two or more pieces of information or objects.
　また、以下の実施の形態において、説明の便宜上、透光支持カバーに対する拡散カバーが配置される方向をＺ軸方向と一致させ、照明装置の幅方向をＸ軸方向と一致させ、Ｘ－Ｚ軸方向に直交する方向をＹ軸方向と一致させているが、これら対応付けは、本開示に係る照明装置の製造時又は使用時における姿勢を限定するものではない。また、以下の説明において、例えば、Ｘ軸プラス方向側とは、Ｘ軸の矢印方向側を示し、Ｘ軸マイナス方向側とは、Ｘ軸プラス方向側とは反対側を示す。Ｙ軸方向及びＺ軸方向についても同様である。 Further, in the following embodiments, for convenience of explanation, the direction in which the diffusion cover is disposed with respect to the translucent support cover is made to coincide with the Z-axis direction, and the width direction of the lighting device is made to coincide with the X-axis direction. Although the direction orthogonal to the direction coincides with the Y-axis direction, these associations do not limit the posture at the time of manufacturing or using the lighting device according to the present disclosure. In the following description, for example, the X axis plus direction side indicates the arrow direction side of the X axis, and the X axis minus direction side indicates the opposite side to the X axis plus direction side. The same applies to the Y-axis direction and the Z-axis direction.
　以下、本開示の実施の形態に係る照明装置について説明する。 Hereinafter, the lighting device according to the embodiment of the present disclosure will be described.
　（実施の形態１）
　図１は、実施の形態１に係る照明装置１を示す斜視図である。 (Embodiment 1)
FIG. 1 is a perspective view showing a lighting apparatus 1 according to Embodiment 1. FIG.
　図１に示すように、照明装置１は、主照明と、壁、天井等の造営材等の間接照明とを行うことが可能であり、例えばシーリングライトである。照明装置１は、例えば、造営材に設けられる引掛けシーリング等の屋内配線器具に係合する取付けアダプタを介することによって、外部電源に接続されると共に、造営材の所定位置に固定されて利用される。なお、本実施の形態では、照明装置１の一例として、平面視して円形のものを例に挙げて説明するが、形状はこれに限定されず、例えば、多角形、半円形等のものにも適用することができる。 As shown in FIG. 1, the lighting device 1 can perform main lighting and indirect lighting such as construction materials such as walls and ceilings, and is a ceiling light, for example. For example, the lighting device 1 is connected to an external power source through a mounting adapter that engages with an indoor wiring device such as a hook ceiling provided on the construction material, and is used by being fixed at a predetermined position on the construction material. The In the present embodiment, as an example of the lighting device 1, a circular shape in plan view will be described as an example. However, the shape is not limited to this, and for example, a polygonal shape, a semicircular shape, or the like is used. Can also be applied.
　図２は、実施の形態１に係る照明装置１を示す分解斜視図である。図３は、図１のＩＩＩ－ＩＩＩ線における実施の形態１に係る照明装置１を示す断面図である。 FIG. 2 is an exploded perspective view showing the lighting device 1 according to the first embodiment. FIG. 3 is a cross-sectional view showing lighting apparatus 1 according to Embodiment 1 taken along line III-III in FIG.
　図２及び図３に示すように、照明装置１は、器具本体３と、透光支持カバー３０と、模様カバー４０と、載置台５０と、点光源５２と、拡散カバー７０と、不図示の制御回路と、不図示の電源部とを有する。 As shown in FIG.2 and FIG.3, the illuminating device 1 is the fixture main body 3, the translucent support cover 30, the pattern cover 40, the mounting base 50, the point light source 52, the diffusion cover 70, and the unillustrated. A control circuit and a power supply unit (not shown) are included.
　器具本体３は、外装カバー１０１と、第１ベース部材１１０と、第２ベース部材１２０と、発光モジュール１３０と、光源カバー１４０とを有する。 The instrument body 3 includes an exterior cover 101, a first base member 110, a second base member 120, a light emitting module 130, and a light source cover 140.
　外装カバー１０１は、器具本体３の外殻の一部を構成している。外装カバー１０１は、平面視で円形の器状であり、かつ、中央部分に開口が形成された環状の部材である。外装カバー１０１は、外周部分で拡散カバー７０を固定し、かつ、内周部分で第１ベース部材１１０と係合している。また、外装カバー１０１の材料は、光を透光させない（不透光）カバーであり、例えば、ＡＢＳ樹脂、ポリカーボネート等の樹脂である。 The exterior cover 101 constitutes a part of the outer shell of the instrument body 3. The exterior cover 101 is a ring-shaped member having a circular container shape in plan view and having an opening formed in the central portion. The outer cover 101 fixes the diffusion cover 70 at the outer peripheral portion and engages with the first base member 110 at the inner peripheral portion. The material of the exterior cover 101 is a cover that does not transmit light (opaque), and is, for example, a resin such as ABS resin or polycarbonate.
　第１ベース部材１１０は、外装カバー１０１の内周部分に配置されている。第１ベース部材１１０は、中央部分に開口が形成された環状の部材である。第１ベース部材１１０は、外周部分に形成された鍔部１１１を有する。第１ベース部材１１０は、例えばネジ等の固定部材によって外装カバー１０１に固定されている。具体的には、鍔部１１１は、外装カバー１０１の開口から内側に張り出て、外装カバー１０１の内周部分と重なっている。固定部材が鍔部１１１と外装カバー１０１の内周部分とを挿通してネジ止めすることで、第１ベース部材１１０は外装カバー１０１に固定される。 The first base member 110 is disposed on the inner peripheral portion of the exterior cover 101. The first base member 110 is an annular member having an opening at the center. The 1st base member 110 has the collar part 111 formed in the outer peripheral part. The first base member 110 is fixed to the exterior cover 101 by a fixing member such as a screw, for example. Specifically, the flange 111 protrudes inward from the opening of the exterior cover 101 and overlaps with the inner peripheral portion of the exterior cover 101. The first base member 110 is fixed to the outer cover 101 by the fixing member passing through the flange 111 and the inner peripheral portion of the outer cover 101 and screwing.
　第２ベース部材１２０は、第１ベース部材１１０の内周部分に配置され、第１ベース部材１１０に固定されている。第２ベース部材１２０は、平面視で円形の器状の部材である。第２ベース部材１２０は、第１ベース部材１１０の内周側と係合する鍔部１１１を有する。第２ベース部材１２０は、アルミ、鉄、亜鉛メッキ鋼板等の金属により構成されており、光を遮光する遮光機能を有する。第２ベース部材１２０は、発光モジュール１３０を支持している。第２ベース部材１２０のＺ軸マイナス方向側の面には、発光モジュール１３０が載置される。 The second base member 120 is disposed on the inner peripheral portion of the first base member 110 and is fixed to the first base member 110. The second base member 120 is a circular container-like member in plan view. The second base member 120 has a flange 111 that engages with the inner peripheral side of the first base member 110. The second base member 120 is made of a metal such as aluminum, iron, galvanized steel plate, etc., and has a light blocking function for blocking light. The second base member 120 supports the light emitting module 130. The light emitting module 130 is mounted on the surface of the second base member 120 on the Z axis minus direction side.
　第２ベース部材１２０は、放熱性を有し、発光モジュール１３０が発した熱を放熱するように、発光モジュール１３０に熱的に接続されている。 The second base member 120 has heat dissipation and is thermally connected to the light emitting module 130 so as to dissipate heat generated by the light emitting module 130.
　第１ベース部材１１０及び第２ベース部材１２０は、光が透光しない遮光性の材料で構成されている。第１ベース部材１１０及び第２ベース部材１２０は、遮蔽体を構成している。遮蔽体は、遮光性を有する。遮蔽体は、透光支持カバー３０、模様カバー４０、及び点光源５２と、発光モジュール１３０、及び拡散カバー７０との間を仕切る姿勢で配置されている。この照明装置１では、遮蔽体によって、遮蔽体と透光支持カバー３０とで構成する第１空間Ｋ１と、遮蔽体、外装カバー１０１及び拡散カバー７０で構成する第２空間Ｋ２とが形成される。このため、第１空間Ｋ１に存在する点光源５２の発する光は、遮蔽体を介して第２空間Ｋ２に伝搬せず、第２空間Ｋ２に存在する発光モジュール１３０の発する光は、遮蔽体を介して第１空間Ｋ１に伝搬しない。つまり、遮蔽体は、第１空間Ｋ１と第２空間Ｋ２との間を通過する光を遮っている。 The first base member 110 and the second base member 120 are made of a light blocking material that does not transmit light. The first base member 110 and the second base member 120 constitute a shield. The shield has a light shielding property. The shield is disposed in a posture that partitions the light-transmitting support cover 30, the pattern cover 40, the point light source 52, the light emitting module 130, and the diffusion cover 70. In the illuminating device 1, a first space K <b> 1 configured by the shield and the translucent support cover 30 and a second space K <b> 2 configured by the shield, the exterior cover 101, and the diffusion cover 70 are formed by the shield. . For this reason, the light emitted from the point light source 52 existing in the first space K1 does not propagate to the second space K2 via the shield, and the light emitted from the light emitting module 130 present in the second space K2 passes through the shield. Does not propagate through the first space K1. That is, the shield blocks light that passes between the first space K1 and the second space K2.
　発光モジュール１３０は、環状である。発光モジュール１３０は、複数のＬＥＤ（Ｌｉｇｈｔ　Ｅｍｉｔｔｉｎｇ　Ｄｉｏｄｅ）光源１３１と、基板１３２とを有する。 The light emitting module 130 is annular. The light emitting module 130 includes a plurality of LED (Light Emitting Diode) light sources 131 and a substrate 132.
　ＬＥＤ光源１３１は、照明装置１の出射光となる光を出射し、光源カバー１４０を介して拡散カバー７０に光を入射させる。ＬＥＤ光源１３１は、いわゆるＳＭＤ（Ｓｕｒｆａｃｅ　Ｍｏｕｎｔ　Ｄｅｖｉｃｅ）型のＬＥＤ素子である。ＳＭＤ型のＬＥＤ素子とは、具体的には、樹脂成型されたキャビティの中にＬＥＤチップ（発光素子）が実装され、キャビティ内に蛍光体含有樹脂が封入されたパッケージ型のＬＥＤ素子である。ＬＥＤ光源１３１は、電源部に設けられている図示しない制御部により制御されて点灯および消灯を行う。また、ＬＥＤ光源１３１は、電源部に設けられている制御部により制御されて調光調色が行われる。例えば、青色ＬＥＤチップと黄色蛍光体含有樹脂との組み合わせにより白色光を放出する表面実装型ＬＥＤ素子が、ＬＥＤ光源１３１として採用される。なお、ＬＥＤ光源１３１は、ＬＥＤ素子の代わりに直管蛍光灯、レーザダイオード等でもよい。 The LED light source 131 emits light to be emitted from the illumination device 1 and causes the light to enter the diffusion cover 70 via the light source cover 140. The LED light source 131 is a so-called SMD (Surface Mount Device) type LED element. Specifically, the SMD type LED element is a package type LED element in which an LED chip (light emitting element) is mounted in a resin-molded cavity, and a phosphor-containing resin is sealed in the cavity. The LED light source 131 is turned on and off under the control of a control unit (not shown) provided in the power supply unit. In addition, the LED light source 131 is controlled by a control unit provided in the power supply unit to perform dimming and toning. For example, a surface-mounted LED element that emits white light by a combination of a blue LED chip and a yellow phosphor-containing resin is employed as the LED light source 131. The LED light source 131 may be a straight tube fluorescent lamp, a laser diode, or the like instead of the LED element.
　基板１３２は、複数のＬＥＤ光源１３１を実装するための実装基板であって、例えばセラミックス基板、樹脂基板又は絶縁被覆されたメタルベース基板等である。基板１３２には、ＬＥＤ光源１３１を発光させるための直流電力を外部から受電するための一対の電極端子（正電極端子及び負電極端子）が形成されている。本実施の形態では、２つの基板１３２によって発光モジュール１３０の形状である環状を形成している。 The substrate 132 is a mounting substrate for mounting the plurality of LED light sources 131, and is, for example, a ceramic substrate, a resin substrate, an insulating-coated metal base substrate, or the like. A pair of electrode terminals (a positive electrode terminal and a negative electrode terminal) for receiving DC power for causing the LED light source 131 to emit light from outside is formed on the substrate 132. In the present embodiment, the two substrates 132 form an annular shape that is the shape of the light emitting module 130.
　光源カバー１４０は、発光モジュール１３０の発光面全体を覆っている。光源カバー１４０は、環状であり、発光モジュール１３０に対応した形状及び大きさである。光源カバー１４０は、発光モジュール１３０が有する複数のＬＥＤ光源１３１が発した光を透光させる。本実施の形態では、光源カバー１４０は、複数のＬＥＤ光源１３１から発せられた光を拡散（散乱）する。光源カバー１４０は、発光モジュール１３０の各々の内周部分と外周部分とを覆う姿勢で、第２ベース部材１２０のＺ軸マイナス方向側の面に、固定部材により固定されている。光源カバー１４０の材料は、例えば、ポリスチレン、ポリカーボネート、アクリル等の透光性を有する樹脂である。 The light source cover 140 covers the entire light emitting surface of the light emitting module 130. The light source cover 140 is annular and has a shape and size corresponding to the light emitting module 130. The light source cover 140 transmits light emitted from the plurality of LED light sources 131 included in the light emitting module 130. In the present embodiment, the light source cover 140 diffuses (scatters) the light emitted from the plurality of LED light sources 131. The light source cover 140 is fixed to the surface of the second base member 120 on the Z-axis minus direction side by a fixing member so as to cover the inner peripheral portion and the outer peripheral portion of each light emitting module 130. The material of the light source cover 140 is, for example, a resin having translucency such as polystyrene, polycarbonate, or acrylic.
　透光支持カバー３０は、錐台状であり、Ｚ軸マイナス方向側が開口している。なお、透光支持カバー３０は、円錐台状に限定されず、多角形の錐台状であってもよい。透光支持カバー３０は、透光カバーの一例である。 The translucent support cover 30 has a frustum shape, and the Z-axis minus direction side is open. The translucent support cover 30 is not limited to a truncated cone shape, and may be a polygonal truncated cone shape. The translucent support cover 30 is an example of a translucent cover.
　透光支持カバー３０は、外装カバー１０１の開口をＺ軸プラス方向側から覆うように配置、つまり模様カバー４０の後方に配置されている。透光支持カバー３０は、外周部分が第１ベース部材１１０の鍔部１１１と係合し、第１ベース部材１１０に固定される。透光支持カバー３０は、造営材に照明装置１を設置する際に、実質的に器具本体３を支持している。 The translucent support cover 30 is disposed so as to cover the opening of the exterior cover 101 from the Z-axis plus direction side, that is, disposed behind the pattern cover 40. The translucent support cover 30 is fixed to the first base member 110 with the outer peripheral portion engaging with the flange 111 of the first base member 110. The translucent support cover 30 substantially supports the instrument body 3 when the lighting device 1 is installed on the construction material.
　透光支持カバー３０は、平板部３１と、第１透光部３２とを有する。透光支持カバー３０の材料は、例えば、ポリスチレン、ポリカーボネート、アクリル等の透光性を有する樹脂である。なお、後方とは、Ｚ軸マイナス方向側に対応している。 The translucent support cover 30 includes a flat plate portion 31 and a first translucent portion 32. The material of the translucent support cover 30 is, for example, a resin having translucency such as polystyrene, polycarbonate, or acrylic. Note that the rear corresponds to the Z-axis negative direction side.
　平板部３１は、取付けアダプタと電気的に接続する部分であり、円盤状である。平板部３１は、難燃性及び電気絶縁性を有する樹脂で形成されていてもよい。平板部３１には、点光源５２を載置する載置台５０が設けられている。 The flat plate portion 31 is a portion that is electrically connected to the mounting adapter and has a disk shape. The flat plate portion 31 may be formed of a resin having flame retardancy and electrical insulation. The flat plate portion 31 is provided with a mounting table 50 on which the point light source 52 is mounted.
　第１透光部３２は、透光性を有し、模様カバー４０を透光した光、つまり模様カバー４０を介して発光モジュール１３０が発した光を透光させる。第１透光部３２は、Ｘ－Ｚ平面において断面視した場合に、平板部３１の外周部分から外側に向かって末広がる錐台状である。第１透光部３２の外周部分は、第１ベース部材１１０の鍔部１１１と係合している。第１透光部３２の材料は、例えば、ポリスチレン、ポリカーボネート、アクリル等の透光性を有する樹脂である。なお、ここでいうＸ－Ｚ平面とはＸ軸方向及びＺ軸方向で規定される平面を意味し、他に○－○平面と記載する場合においても同様である。 The first translucent part 32 has translucency, and transmits light transmitted through the pattern cover 40, that is, light emitted from the light emitting module 130 through the pattern cover 40. The first light transmitting portion 32 has a truncated cone shape that spreads outward from the outer peripheral portion of the flat plate portion 31 when viewed in cross section in the XZ plane. The outer peripheral portion of the first light transmitting portion 32 is engaged with the flange portion 111 of the first base member 110. The material of the 1st translucent part 32 is resin which has translucency, such as a polystyrene, a polycarbonate, an acryl, for example. Note that the XZ plane here means a plane defined by the X-axis direction and the Z-axis direction, and the same applies to other cases where the XX plane is described.
　模様カバー４０は、発光モジュール１３０が発した光を透光させて、透光した光が第１透光部３２に入射させる。模様カバー４０は、Ｘ－Ｚ平面において断面視した場合に、平板部３１の外周部分から外側に向かって傾斜する錐台状を構成している。模様カバー４０は、模様が印刷されたフィルムでもよい。本実施の形態では、模様カバー４０は、円錐台状であるがこれに限定されず、多角形の錐台状であってもよい。 The pattern cover 40 transmits the light emitted from the light emitting module 130, and allows the transmitted light to enter the first light transmitting part 32. The pattern cover 40 forms a frustum shape that is inclined outward from the outer peripheral portion of the flat plate portion 31 when viewed in cross section in the XZ plane. The pattern cover 40 may be a film on which a pattern is printed. In the present embodiment, the pattern cover 40 has a truncated cone shape, but is not limited thereto, and may be a polygonal truncated cone shape.
　模様カバー４０は、点光源５２の周囲を囲み、かつ、光源から遠ざかるに従って錐台の径が小さくなるように配置されている。模様カバー４０は、器具本体３と透光支持カバー３０との間に配置され、透光支持カバー３０の第１透光部３２と間隔を空けて向かい合っている。模様カバー４０は、Ｚ軸プラス方向側の端部が平板部３１の外周部分に支持され、Ｚ軸マイナス方向側の端部が第２ベース部材１２０に支持されている。模様カバー４０は、照明装置１をＺ軸プラス方向から見た場合に透光支持カバー３０に覆われ、照明装置１をＺ軸マイナス方向から見た場合に拡散カバー７０に覆われている。模様カバー４０は、点光源５２の後方に配置される。 The pattern cover 40 surrounds the point light source 52 and is arranged so that the diameter of the frustum decreases as the distance from the light source increases. The pattern cover 40 is disposed between the instrument body 3 and the translucent support cover 30 and faces the first translucent part 32 of the translucent support cover 30 with a gap. The pattern cover 40 has an end on the Z axis plus direction side supported by the outer peripheral portion of the flat plate portion 31, and an end on the Z axis minus direction side supported by the second base member 120. The pattern cover 40 is covered with the translucent support cover 30 when the lighting device 1 is viewed from the positive direction of the Z axis, and is covered with the diffusion cover 70 when the lighting device 1 is viewed from the negative direction of the Z axis. The pattern cover 40 is disposed behind the point light source 52.
　模様カバー４０は、第２透光部４２と、遮光部４３とを有する。 The pattern cover 40 includes a second light transmitting portion 42 and a light shielding portion 43.
　第２透光部４２は、点光源５２の発した光が透光する。第２透光部４２の材料は、例えば、ポリスチレン、ポリカーボネート、アクリル等の透光性を有する樹脂である。 The second light transmitting part 42 transmits light emitted from the point light source 52. The material of the second light transmitting part 42 is a resin having a light transmitting property such as polystyrene, polycarbonate, acrylic, or the like.
　遮光部４３は、点光源５２の発した光を遮る遮光性を有する。遮光部４３は、例えば、第２透光部４２に遮光性の材料を印刷して成形してもよく、押し出し成形により遮光部４３と第２透光部４２とを一体形成してもよい。遮光部４３は、第２透光部４２のいずれの面に形成されていてもよい。 The light shielding unit 43 has a light shielding property to block the light emitted from the point light source 52. For example, the light shielding part 43 may be formed by printing a light shielding material on the second light transmitting part 42, or the light shielding part 43 and the second light transmitting part 42 may be integrally formed by extrusion molding. The light shielding portion 43 may be formed on any surface of the second light transmitting portion 42.
　遮光部４３の材料は、点光源５２が発した光を反射する高反射材料の樹脂であってもよく、点光源５２が発した光を吸収する光吸収材料等でもよい。例えば、高反射材料としては、ポリブチレンテレフタレート等の硬質の白色樹脂材料によって形成されたものを用いてもよいし、銀又はアルミニウム等の金属反射膜を形成したものを用いてもよい。 The material of the light shielding portion 43 may be a highly reflective resin that reflects light emitted from the point light source 52, or a light absorbing material that absorbs light emitted from the point light source 52. For example, as the highly reflective material, a material formed of a hard white resin material such as polybutylene terephthalate may be used, or a material formed with a metal reflective film such as silver or aluminum may be used.
　第２透光部４２又は遮光部４３は、所定の模様を形成している。模様は、如何様な形状であってもよく、特に限定されない。模様は、例えば、幾何学模様であってもよい。模様カバー４０には、例えば図４～図６に示す所定の模様が形成されている。 The second light transmitting part 42 or the light shielding part 43 forms a predetermined pattern. The pattern may have any shape and is not particularly limited. The pattern may be a geometric pattern, for example. For example, a predetermined pattern shown in FIGS. 4 to 6 is formed on the pattern cover 40.
　図４は、実施の形態１に係る照明装置１の模様カバー４０ａを例示する平面図である。模様カバー４０ａは第２透光部４２ａと、遮光部４３ａとを有する。図５は、実施の形態１に係る照明装置１の模様カバー４０ｂを例示する平面図である。模様カバー４０ｂは第２透光部４２ｂと、遮光部４３ｂとを有する。図６は、実施の形態１に係る照明装置１の模様カバー４０ｃを例示する平面図である。模様カバー４０ｃは第２透光部４２ｃと、遮光部４３ｃとを有する。なお、本実施の形態の模様カバー４０の模様は、図４～図６の模様と異なる模様である。 FIG. 4 is a plan view illustrating the pattern cover 40a of the lighting device 1 according to the first embodiment. The pattern cover 40a includes a second light transmitting portion 42a and a light shielding portion 43a. FIG. 5 is a plan view illustrating the pattern cover 40b of the lighting device 1 according to the first embodiment. The pattern cover 40b includes a second light transmitting part 42b and a light shielding part 43b. FIG. 6 is a plan view illustrating the pattern cover 40c of the lighting device 1 according to the first embodiment. The pattern cover 40c includes a second light transmitting part 42c and a light shielding part 43c. Note that the pattern of the pattern cover 40 of the present embodiment is different from the patterns of FIGS.
　所定の模様は、一種類以上の形状を一定の規則で配列した幾何学模様でもよく、非規則的な形状が組み合わされた模様でもよい。なお、図４～図６で示す所定の模様は、あくまでも一例であり、図４～図６に限定されず、他の模様でもよい。 The predetermined pattern may be a geometric pattern in which one or more types of shapes are arranged according to a certain rule, or may be a pattern in which irregular shapes are combined. Note that the predetermined patterns shown in FIGS. 4 to 6 are merely examples, and are not limited to FIGS. 4 to 6, and other patterns may be used.
　図２及び図３に示すように、載置台５０は、透光支持カバー３０の平板部３１における模様カバー４０側の面からＺ軸マイナス方向に延びる柱状の部材である。載置台５０は、Ｚ軸マイナス方向側の下端に点光源５２を実装した基板５１を載置する載置面５０ａを有する。図示は省略するが、載置台５０の内部には、点光源５２に電力を供給するリード線が設けられている。 2 and 3, the mounting table 50 is a columnar member that extends in the negative Z-axis direction from the surface on the pattern cover 40 side of the flat plate portion 31 of the translucent support cover 30. The mounting table 50 has a mounting surface 50a on which the substrate 51 on which the point light source 52 is mounted is mounted at the lower end on the Z axis minus direction side. Although not shown, a lead wire for supplying power to the point light source 52 is provided inside the mounting table 50.
　載置台５０は、放熱性を有し、点光源５２が発した熱を放熱するように、点光源５２に熱的に接続されている。載置台５０は、アルミ、鉄、亜鉛メッキ鋼板等の金属により構成されている。なお、載置台５０の影ができないように、載置台５０の径を点光源５２の径よりも小さくすることが好ましい。 The mounting table 50 has a heat dissipation property and is thermally connected to the point light source 52 so as to dissipate heat generated by the point light source 52. The mounting table 50 is made of a metal such as aluminum, iron, or galvanized steel sheet. In addition, it is preferable to make the diameter of the mounting table 50 smaller than the diameter of the point light source 52 so that the mounting table 50 cannot be shaded.
　点光源５２は、基板５１を介して載置台５０の載置面５０ａに配置され、模様カバー４０と拡散カバー７０との間に配置されている。点光源５２は、発光ダイオードを有するモジュールである。点光源５２は、上述のＬＥＤ光源１３１と基板１３２と同様の構成であってもよい。点光源５２は、Ｚ軸マイナス方向側に光を照射する向きに基板５１に実装されている。点光源５２は、第２ベース部材１２０と対向し、模様カバー４０に向けて光を発する姿勢で配置されている。 The point light source 52 is disposed on the mounting surface 50 a of the mounting table 50 through the substrate 51, and is disposed between the pattern cover 40 and the diffusion cover 70. The point light source 52 is a module having a light emitting diode. The point light source 52 may have the same configuration as the LED light source 131 and the substrate 132 described above. The point light source 52 is mounted on the substrate 51 in such a direction as to irradiate light in the negative Z-axis direction. The point light source 52 faces the second base member 120 and is arranged in a posture that emits light toward the pattern cover 40.
　点光源５２は模様カバー４０に対して点とみなされる必要があるため、模様カバー４０を透光した光が造営材に照射された際に、光と影による模様が造営材に鮮明に投影されればよい。模様カバー４０に対して点光源５２とみなされるには、例えば、模様カバー４０の幅方向の長さ（Ｚ軸方向に傾斜した方向）に対して、点光源５２の発光面が５分の１以下、より好ましくは１０分の１以下の関係にある。なお、本実施の形態で点光源５２を用いている理由については後述する。 Since the point light source 52 needs to be regarded as a point with respect to the pattern cover 40, when the construction material is irradiated with light transmitted through the pattern cover 40, a pattern of light and shadow is clearly projected onto the construction material. Just do it. In order to be regarded as the point light source 52 with respect to the pattern cover 40, for example, the light emitting surface of the point light source 52 is 1/5 of the length in the width direction of the pattern cover 40 (inclined in the Z-axis direction). In the following, the relationship is more preferably 1/10 or less. The reason why the point light source 52 is used in this embodiment will be described later.
　拡散カバー７０は、透光性を有し、光を拡散するカバーである。拡散カバー７０は、照明装置１の外郭の一部を構成している。拡散カバー７０は、器具本体３及び発光モジュール１３０を覆っている。拡散カバー７０は、外装カバー１０１の外周部分に固定されている。つまり、拡散カバー７０は、模様カバー４０及び点光源５２の前方に配置されている。拡散カバー７０は、発光モジュール１３０が発する光の出射側に、中央程、Ｚ軸マイナス方向に突出するように緩やかな曲面を有する、扁平なドーム形状に形成されている。なお、前方とは、Ｚ軸プラス方向側に対応している。 The diffusion cover 70 is a cover that has translucency and diffuses light. The diffusion cover 70 constitutes a part of the outline of the lighting device 1. The diffusion cover 70 covers the instrument body 3 and the light emitting module 130. The diffusion cover 70 is fixed to the outer peripheral portion of the exterior cover 101. That is, the diffusion cover 70 is disposed in front of the pattern cover 40 and the point light source 52. The diffusion cover 70 is formed in a flat dome shape having a gently curved surface on the light emission side of the light emitting module 130 so as to protrude in the negative direction of the Z axis toward the center. The front corresponds to the Z-axis plus direction side.
　図２で示すように、透光支持カバー３０、模様カバー４０、載置台５０、点光源５２、拡散カバー７０、外装カバー１０１、第１ベース部材１１０、第２ベース部材１２０、発光モジュール１３０、及び光源カバー１４０のそれぞれの中心を通過する軸は、中心軸Ｏと一致している。 2, the translucent support cover 30, the pattern cover 40, the mounting table 50, the point light source 52, the diffusion cover 70, the exterior cover 101, the first base member 110, the second base member 120, the light emitting module 130, and The axis passing through the center of each light source cover 140 coincides with the central axis O.
　制御回路は、電源部から発光モジュール１３０及び点光源５２へ出力される直流電力を調整するための電子回路を有している。制御回路は、リモコン等の制御信号に従って、発光モジュール１３０及び点光源５２の点灯、消灯、調光、調色等の動作を制御する。制御回路は、入力された制御信号に応じて発光モジュール１３０及び点光源５２に供給する電流値等を制御するマイクロコンピュータ、プロセッサ等、又は専用回路によってこれらの動作を実現する。 The control circuit has an electronic circuit for adjusting DC power output from the power supply unit to the light emitting module 130 and the point light source 52. The control circuit controls operations such as lighting, extinguishing, dimming, and toning of the light emitting module 130 and the point light source 52 in accordance with control signals from a remote controller or the like. The control circuit realizes these operations by a microcomputer, a processor, or the like, or a dedicated circuit that controls the current value supplied to the light emitting module 130 and the point light source 52 according to the input control signal.
　電源部は、金属製の箱に収容され、その内部に点灯回路等の回路部品が実装された基板を収納している。電源部には商用交流電源からの電源ケーブルが接続されて、商用交流電源が点灯回路に供給される。電源部は、制御回路と電気的に接続している。 The power supply unit is housed in a metal box and houses a board on which circuit components such as a lighting circuit are mounted. A power cable from a commercial AC power supply is connected to the power supply unit, and the commercial AC power is supplied to the lighting circuit. The power supply unit is electrically connected to the control circuit.
　ここでは、間接照明として点光源５２を用いる理由について、図７を用いて説明する。 Here, the reason why the point light source 52 is used as indirect illumination will be described with reference to FIG.
　図７は、ＬＥＤ電球を用いた照明装置に係り、模様カバーを天井面と平行に配置した場合の遮光部で遮光される光の様子を例示した説明図である。 FIG. 7 is an explanatory view exemplifying the state of light shielded by the light shielding portion when the pattern cover is arranged in parallel with the ceiling surface in an illumination device using an LED bulb.
　まずは、図７に示すように、比較例として、点光源の代わりにＬＥＤ電球を用いた場合では、例えばＬＥＤ電球の上側の地点Ｈ１から発した光は、一部が遮光部で遮光され、残りが模様カバーを通過し天井面に投影される。また、ＬＥＤ電球の下側の地点Ｈ２から発した光は、一部が遮光部で遮光され、残りが模様カバーを通過し天井面に投影される。 First, as shown in FIG. 7, as a comparative example, when an LED bulb is used instead of a point light source, for example, a part of the light emitted from the point H1 on the upper side of the LED bulb is shielded by the light shielding portion, and the remaining light is left. Passes through the pattern cover and is projected onto the ceiling. Further, part of the light emitted from the lower point H2 of the LED bulb is shielded by the light shielding portion, and the rest passes through the pattern cover and is projected onto the ceiling surface.
　比較例では、ＬＥＤ電球から出射される光の領域が大きいため、地点Ｈ１から発した光によって模様を天井面に投影しても、地点Ｈ１から発した光により形成された模様の影の部分を地点Ｈ２から発した光が照らしてしまう。また、この逆のことも言える。これでは、天井面に投影される模様はぼやけてしまい、人は模様を鮮明に認識することができない。 In the comparative example, since the area of the light emitted from the LED bulb is large, even if the pattern is projected on the ceiling surface by the light emitted from the point H1, the shadow portion of the pattern formed by the light emitted from the point H1 Light emitted from the point H2 is illuminated. The reverse is also true. In this case, the pattern projected on the ceiling surface is blurred, and a person cannot clearly recognize the pattern.
　次に、照明装置を天井に取り付けた場合における、模様カバーと模様が投影される造営材との関係について説明する。模様カバーを天井面と平行にした場合について説明する。 Next, the relationship between the pattern cover and the construction material on which the pattern is projected when the lighting device is attached to the ceiling will be described. A case where the pattern cover is parallel to the ceiling surface will be described.
　図８は、点光源を用いた照明装置に係り、模様カバーを天井面と平行に配置した場合の遮光部で遮光される光の様子を例示した説明図である。図８において、天井面に対する模様カバーの高さをＡとし、載置台に対する点光源の高さをＢとし、模様カバーの半径をＣとする。 FIG. 8 is an explanatory view exemplifying the state of light shielded by the light shielding portion when the pattern cover is arranged in parallel with the ceiling surface in an illumination device using a point light source. In FIG. 8, the height of the pattern cover with respect to the ceiling surface is A, the height of the point light source with respect to the mounting table is B, and the radius of the pattern cover is C.
　この場合において、天井面に投影する光と影の模様を大きくするには、高さＡを大きくすること、模様カバーを大きくすること（半径Ｃを大きくすること）が考えられる。ここで、高さＡを大きくする場合では、照明装置の厚みが増大してしまうと考えられる。半径Ｃを大きくする場合では、照明装置が大径化（大面積化）してしまうと考えられる。 In this case, to increase the pattern of light and shadow projected on the ceiling surface, it is conceivable to increase the height A and increase the pattern cover (increase the radius C). Here, when the height A is increased, it is considered that the thickness of the lighting device increases. In the case where the radius C is increased, it is considered that the diameter of the lighting device is increased (the area is increased).
　また、高さＢを小さくし過ぎれば、点光源の配する光が載置台の端部によって遮られてしまい、影ができてしまうと考えられる。このため、点光源を載置台から所定の高さにする、言い換えれば、高さＢを所定値以上にしなければならないと考えられる。 Also, if the height B is made too small, the light distributed by the point light source will be blocked by the end of the mounting table and a shadow will be formed. For this reason, it is considered that the point light source is set to a predetermined height from the mounting table, in other words, the height B must be set to a predetermined value or more.
　このことから、高さＡ、Ｂ、半径Ｃを調節することで、天井面に投影される光と影の模様における、所望の大きさを調節することができる。造営材に投影される模様は、照明装置を平面視した場合に、照明装置よりも大きければよく、例えば、造営材に投影される光と影の模様の横幅が照明装置の横幅の１．５倍以上であってもよい。 Therefore, by adjusting the heights A and B and the radius C, it is possible to adjust a desired size in the pattern of light and shadow projected on the ceiling surface. The pattern projected on the construction material only needs to be larger than the illumination device when the illumination device is viewed in plan view. For example, the horizontal width of the light and shadow pattern projected on the construction material is 1.5 which is the lateral width of the illumination device. It may be twice or more.
　次に、本実施の形態のように、模様カバーを天井面に対して傾けた場合における、模様カバーと模様が投影される造営材との関係について説明する。 Next, the relationship between the pattern cover and the construction material onto which the pattern is projected when the pattern cover is tilted with respect to the ceiling surface as in the present embodiment will be described.
　図９は、本実施の形態に係る装置において、模様カバーを天井面に対して傾斜した姿勢で配置した場合に、光によって形成された遮光部の影の様子を例示した説明図である。 FIG. 9 is an explanatory view exemplifying the shadow of the light shielding portion formed by light when the pattern cover is arranged in an inclined posture with respect to the ceiling surface in the apparatus according to the present embodiment.
　図９に示すように、天井面と平行な仮想の直線Ｖと、最も点光源に近い遮光部に入射する光の方向との角度をθとする。また図８でも、図９と同様の条件で角度θを設定する。この場合、図８の照明装置１が出射した光によって天井面に投影される、光と影の模様の大きさと、図９の照明装置が出射した光によって天井面に投影される模様の大きさとが同じになる。 As shown in FIG. 9, the angle between a virtual straight line V parallel to the ceiling surface and the direction of light incident on the light shielding part closest to the point light source is defined as θ. Also in FIG. 8, the angle θ is set under the same conditions as in FIG. In this case, the size of the light and shadow pattern projected on the ceiling surface by the light emitted from the illumination device 1 in FIG. 8 and the size of the pattern projected on the ceiling surface by the light emitted from the illumination device in FIG. Are the same.
　図８及び図９を見比べると、図８では、模様カバーを天井面に水平に配置するため照明装置が大径化してしまうが、図９では、模様カバーを天井面に対して傾斜させた状態で配置しているため、照明装置の大径化を抑制することができる。 8 and 9, in FIG. 8, the diameter of the lighting device increases because the pattern cover is horizontally arranged on the ceiling surface, but in FIG. 9, the pattern cover is inclined with respect to the ceiling surface. Therefore, it is possible to suppress an increase in the diameter of the lighting device.
　以上の説明から判るように、このような照明装置１において、間接照明として動作させる場合、点光源５２だけを点灯させると、点光源５２の発する光は、模様カバー４０に入射し、一部が遮光部４３で遮光され、残りが第２透光部４２を透光する。模様カバー４０を透光した光は、さらに透光支持カバー３０を透光して造営材に照射される。これにより、図１０に示すように、模様カバー４０に対応した模様が造営材に投影される。図１０は、実施の形態１に係る照明装置１の点光源５２だけの点灯時を示す斜視図である。 As can be seen from the above description, in such an illuminating device 1, when operating as indirect illumination, when only the point light source 52 is turned on, the light emitted from the point light source 52 is incident on the pattern cover 40, and a part thereof. The light is blocked by the light blocking portion 43, and the remaining light is transmitted through the second light transmitting portion 42. The light transmitted through the pattern cover 40 is further transmitted through the translucent support cover 30 and applied to the construction material. Thereby, as shown in FIG. 10, the pattern corresponding to the pattern cover 40 is projected on the construction material. FIG. 10 is a perspective view showing when only the point light source 52 of the lighting apparatus 1 according to Embodiment 1 is turned on.
　また、この照明装置１では、通常の照明として用いることも可能である。この場合、発光モジュール１３０が発した光は、光源カバー１４０を介して拡散カバー７０に入射し、拡散カバー７０を透光する。これにより、拡散カバー７０からは、拡散された光が出射する。なお、この照明装置１では、発光モジュール１３０及び点光源５２を同時に点灯させることも可能である。 In addition, the lighting device 1 can be used as normal lighting. In this case, the light emitted from the light emitting module 130 enters the diffusion cover 70 through the light source cover 140 and is transmitted through the diffusion cover 70. Thereby, the diffused light is emitted from the diffusion cover 70. In the illumination device 1, the light emitting module 130 and the point light source 52 can be turned on simultaneously.
　さらに、点光源５２と発光モジュール１３０との間には、器具本体３の第１ベース部材１１０及び第２ベース部材１２０によって遮光されているため、点光源５２だけが点灯した場合では、点光源５２の発した光が拡散カバー７０から出射されることもなく、発光モジュール１３０だけが点灯した場合では、発光モジュール１３０の発した光が透光支持カバー３０から出射されることもない。 Furthermore, since the light source module 130 is shielded from light by the first base member 110 and the second base member 120 between the point light source 52 and the light emitting module 130, when only the point light source 52 is lit, the point light source 52. In the case where only the light emitting module 130 is lit, the light emitted from the light emitting module 130 is not emitted from the translucent support cover 30.
　［作用効果］
　次に、本実施の形態における照明装置１の作用効果について説明する。 [Function and effect]
Next, the effect of the illuminating device 1 in this Embodiment is demonstrated.
　上述したように、本実施の形態に係る照明装置１は、光を発する点光源５２と、点光源５２の発した光が透光する透光部と、点光源５２の発した光を遮る遮光部４３とを有し、点光源５２の後方に配置される模様カバー４０と、透光性を有し、模様カバー４０及び点光源５２の前方に配置され、後方からの光を拡散して前方に出射する拡散カバー７０とを備える。 As described above, the illumination device 1 according to the present embodiment includes the point light source 52 that emits light, the translucent part that transmits light emitted from the point light source 52, and the light shielding that blocks light emitted from the point light source 52. And a pattern cover 40 disposed behind the point light source 52, and having translucency, disposed in front of the pattern cover 40 and the point light source 52, and diffusing light from the rear to the front And a diffusion cover 70 that emits light.
　照明装置１を造営材に設置した場合において、点光源５２が点灯すると、点光源５２の発する光が模様カバー４０に入射し、一部の光が遮光部４３によって遮られ、残りの光が透光部を透光する。点光源５２の発する光のうち、遮光部４３で遮光された部分については影ができる。これにより、模様カバー４０を透光した光が造営材に模様を投影する。 When the lighting device 1 is installed on a construction material, when the point light source 52 is turned on, the light emitted from the point light source 52 is incident on the pattern cover 40, a part of the light is blocked by the light blocking portion 43, and the remaining light is transmitted. Translucent light. Of the light emitted from the point light source 52, a shadow is formed on the portion shielded by the light shielding portion 43. Thereby, the light transmitted through the pattern cover 40 projects the pattern onto the construction material.
　したがって、この照明装置１では、壁、天井等の造営材に模様を投影することができる。特に、拡散カバー７０が模様カバー４０及び点光源５２の前方に配置されているため、模様カバー４０が拡散カバー７０に隠れる。これにより、照明装置１の消灯時に模様カバー４０の模様が見え難くなるため、人は違和感を覚え難い。 Therefore, in this lighting device 1, a pattern can be projected onto a construction material such as a wall or a ceiling. In particular, since the diffusion cover 70 is disposed in front of the pattern cover 40 and the point light source 52, the pattern cover 40 is hidden by the diffusion cover 70. Thereby, since it becomes difficult to see the pattern of the pattern cover 40 when the lighting device 1 is turned off, it is difficult for a person to feel uncomfortable.
　また、本実施の形態に係る照明装置１において、模様カバー４０は、錐台状である。そして、模様カバー４０は、点光源５２を囲み、かつ、点光源５２から遠ざかるに従って錐台の径が小さくなるように配置されている。 Moreover, in the illuminating device 1 which concerns on this Embodiment, the pattern cover 40 is frustum shape. The pattern cover 40 surrounds the point light source 52 and is arranged so that the diameter of the frustum decreases as the distance from the point light source 52 increases.
　このように、模様カバー４０は円錐台状であるため、Ｘ－Ｚ平面で照明装置１を切断した場合の断面を断面視した場合に、模様カバー４０はＺ軸方向に対して傾斜している。このため、模様カバー４０をＸ－Ｙ平面と平行にした場合よりも広い範囲に、模様カバー４０に対応する模様を造営材に投影することができる。 Thus, since the pattern cover 40 has a truncated cone shape, the pattern cover 40 is inclined with respect to the Z-axis direction when the cross section when the lighting device 1 is cut in the XZ plane is viewed in cross section. . Therefore, the pattern corresponding to the pattern cover 40 can be projected onto the construction material in a wider range than when the pattern cover 40 is parallel to the XY plane.
　また、本実施の形態に係る照明装置１は、さらに、模様カバー４０の後方に配置され、模様カバー４０を透光した光を出射する透光支持カバー３０と、拡散カバー７０に向けて光を発する発光モジュール１３０と、透光支持カバー３０、模様カバー４０、及び点光源５２と、発光モジュール１３０、及び拡散カバー７０との間を仕切る姿勢で配置され、拡散カバー７０側の面に発光モジュール１３０を保持する遮蔽体とを備える。また、拡散カバー７０は、発光モジュール１３０を覆い、後方にある発光モジュール１３０が発した光を拡散して出射する。そして、遮蔽体は、遮光性を有する。 In addition, the lighting device 1 according to the present embodiment is further disposed behind the pattern cover 40, and transmits light toward the diffusion cover 70, and a translucent support cover 30 that emits light transmitted through the pattern cover 40. The light emitting module 130 that emits light, the translucent support cover 30, the pattern cover 40, the point light source 52, the light emitting module 130, and the diffusion cover 70 are arranged in a posture to partition, and the light emitting module 130 is provided on the surface on the diffusion cover 70 side. And a shielding body for holding. The diffusion cover 70 covers the light emitting module 130 and diffuses and emits the light emitted from the light emitting module 130 at the rear. And a shield has light-shielding property.
　このように、遮蔽体は、照明装置１において、点光源５２だけが点灯した場合、拡散カバー７０から点光源５２の発する光が出射されず、発光モジュール１３０だけが点灯した場合、発光モジュール１３０の発する光が模様カバー４０及び透光支持カバー３０を透光して模様が造営材に投影されることもない。その結果、この照明装置１では、通常の照明と間接照明とを別々に又は同時に行うことができる。 As described above, when only the point light source 52 is turned on in the lighting device 1, the shielding body does not emit light emitted from the point light source 52 from the diffusion cover 70 and only the light emitting module 130 is turned on. The emitted light is transmitted through the pattern cover 40 and the translucent support cover 30, and the pattern is not projected onto the construction material. As a result, in this illuminating device 1, normal illumination and indirect illumination can be performed separately or simultaneously.
　また、本実施の形態に係る照明装置１は、消灯時に照明装置１を見た場合に、模様カバー４０は、拡散カバー７０を介して模様カバー４０の模様が見えない態様で配置されている。 Further, in the illumination device 1 according to the present embodiment, the pattern cover 40 is arranged in such a manner that the pattern of the pattern cover 40 cannot be seen through the diffusion cover 70 when the illumination device 1 is viewed when the light is turned off.
　このように、消灯時に照明装置１に模様が見えないため、人は違和感を覚えることもない。 Thus, since the pattern cannot be seen in the lighting device 1 when the light is turned off, the person does not feel uncomfortable.
　（実施の形態１の変形例）
　図１１は、実施の形態１の変形例に係る照明装置１１を示す断面図である。本変形例では、点光源３５２が第２ベース部材１２０に配置されている。また、実施の形態１と異なり、本変形例では、載置台５０を設けていない。なお、本実施の形態の照明装置１１における他の構成は、特に明記しない場合は、実施の形態１と同様であり、同一の構成については同一の符号を付して構成に関する詳細な説明を省略する。 (Modification of Embodiment 1)
FIG. 11 is a cross-sectional view showing a lighting device 11 according to a modification of the first embodiment. In this modification, the point light source 352 is disposed on the second base member 120. Further, unlike the first embodiment, the mounting table 50 is not provided in this modification. In addition, the other structure in the illuminating device 11 of this Embodiment is the same as that of Embodiment 1 unless otherwise specified, The same code | symbol is attached | subjected about the same structure and detailed description regarding a structure is abbreviate | omitted. To do.
　点光源３５２は、遮蔽体の第２ベース部材１２０のＺ軸プラス方向側の面における中央部分に配置されている。本変形例では、照明装置１１の中心線状に配置され、点光源３５２が発する光軸と一致している。光軸は、Ｚ軸方向と平行である。点光源３５２は、Ｚ軸プラス方向に向けて光を発するように配置されている。点光源３５２の基板３５１は、第２ベース部材１２０と熱的に接続されている。 The point light source 352 is disposed at the central portion of the surface of the second base member 120 of the shield on the Z axis plus direction side. In this modification, it is arranged in the center line shape of the illumination device 11 and coincides with the optical axis emitted by the point light source 352. The optical axis is parallel to the Z-axis direction. The point light source 352 is disposed so as to emit light toward the Z-axis plus direction. The substrate 351 of the point light source 352 is thermally connected to the second base member 120.
　このような、本変形例に係る照明装置１１において、点光源３５２は、模様カバー４０に向けて光を発する姿勢で遮蔽体に配置されている。 In such an illumination device 11 according to this modification, the point light source 352 is disposed on the shield in a posture that emits light toward the pattern cover 40.
　これによれば、点光源３５２を第２ベース部材１２０（遮蔽体の一部）に配置することができる。これにより、点光源３５２を模様カバー４０に向けることができるため、点光源３５２が発する光を模様カバー４０に向けて出射し易くなる。このため、模様カバー４０及び透光支持カバー３０を透光して出射する光の光量を確保し易くなる。その結果、模様カバー４０に対応する模様を造営材により鮮明に投影することができる。 According to this, the point light source 352 can be disposed on the second base member 120 (a part of the shield). Thereby, since the point light source 352 can be directed to the pattern cover 40, the light emitted from the point light source 352 can be easily emitted toward the pattern cover 40. For this reason, it becomes easy to ensure the light quantity of the light which permeate | transmits the pattern cover 40 and the translucent support cover 30, and radiate | emits. As a result, the pattern corresponding to the pattern cover 40 can be projected clearly by the construction material.
　（実施の形態２）
　本実施の形態の照明装置２０１の構成は、実施の形態１の発光モジュール１３０を有していない点で、実施の形態と相違する。なお、本実施の形態の照明装置２０１における他の構成は、特に明記しない場合は、実施の形態１と同様であり、同一の構成については同一の符号を付して構成に関する詳細な説明を省略する。 (Embodiment 2)
The configuration of the illumination device 201 of this embodiment is different from that of the embodiment in that it does not have the light emitting module 130 of the first embodiment. In addition, the other structure in the illuminating device 201 of this Embodiment is the same as that of Embodiment 1 unless otherwise specified, and about the same structure, the same code | symbol is attached | subjected and detailed description regarding a structure is abbreviate | omitted. To do.
　図１２は、実施の形態２に係る照明装置２０１を示す斜視図である。図１３は、実施の形態２に係る照明装置２０１を示す分解斜視図である。図１４は、図１２のＸＩＶ－ＸＩＶ線における実施の形態２に係る照明装置２０１を示す断面図である。 FIG. 12 is a perspective view showing the illumination device 201 according to the second embodiment. FIG. 13 is an exploded perspective view showing the lighting apparatus 201 according to the second embodiment. FIG. 14 is a cross-sectional view showing lighting apparatus 201 according to Embodiment 2 taken along line XIV-XIV in FIG.
　図１２～図１４に示すように、照明装置２０１は、外装カバー２１０と、模様カバー２２０と、筐体２３０と、載置台５０と、点光源２５２と、拡散カバー２６０と、不図示の制御回路と、不図示の電源部とを有する。 As shown in FIGS. 12 to 14, the illumination device 201 includes an exterior cover 210, a pattern cover 220, a housing 230, a mounting table 50, a point light source 252, a diffusion cover 260, and a control circuit (not shown). And a power supply unit (not shown).
　外装カバー２１０は、照明装置２０１の外殻の一部を構成している。外装カバー２１０は、平面視で円形の器状であり、かつ、中央部分に開口が形成された環状の部材である。 The exterior cover 210 constitutes a part of the outer shell of the lighting device 201. The exterior cover 210 is a ring-shaped member having a circular vessel shape in plan view and having an opening formed in the center portion.
　外装カバー２１０は、拡散カバー２６０と模様カバー２２０との間に配置され、模様カバー２２０を覆うように拡散カバー２６０を支持する。外装カバー２１０は、開口を覆う模様カバー２２０を支持している。外装カバー２１０は、外周部分で拡散カバー２６０を固定し、かつ、内周部分で模様カバー２２０と係合している。また、外装カバー２１０の材料は、光を透光させない（不透光）カバーであり、例えば、ＡＢＳ樹脂、ポリカーボネート等の樹脂である。外装カバー２１０は、支持体の一例である。 The exterior cover 210 is disposed between the diffusion cover 260 and the pattern cover 220 and supports the diffusion cover 260 so as to cover the pattern cover 220. The exterior cover 210 supports a pattern cover 220 that covers the opening. The outer cover 210 fixes the diffusion cover 260 at the outer peripheral portion and engages with the pattern cover 220 at the inner peripheral portion. The material of the exterior cover 210 is a cover that does not transmit light (opaque), and is, for example, a resin such as ABS resin or polycarbonate. The exterior cover 210 is an example of a support.
　模様カバー２２０は、外装カバー２１０の開口を覆うように配置されている。模様カバー２２０は、外周部分が外装カバー２１０の内周部分に固定されている。模様カバー２２０は、外装カバー２１０の開口の形状に対応した形状である。本実施の形態では、模様カバー２２０は、円盤状であるが、形状は円形に限定されず、多角形状であってもよい。模様カバー２２０は、中央部分に形成された開口２２０ａを有する。模様カバー２２０の内周部分は筐体２３０と係合し、模様カバー２２０は筐体２３０に固定されている。 The pattern cover 220 is disposed so as to cover the opening of the exterior cover 210. The outer periphery of the pattern cover 220 is fixed to the inner periphery of the exterior cover 210. The pattern cover 220 has a shape corresponding to the shape of the opening of the exterior cover 210. In the present embodiment, the pattern cover 220 has a disk shape, but the shape is not limited to a circle, and may be a polygonal shape. The pattern cover 220 has an opening 220a formed in the center portion. The inner peripheral portion of the pattern cover 220 is engaged with the housing 230, and the pattern cover 220 is fixed to the housing 230.
　模様カバー２２０は、遮光部２２１と第２透光部２２２とを有する。模様カバー２２０のＺ軸プラス方向側の面又はＺ軸マイナス方向側の面には、遮光部２２１が印刷されている。遮光部２２１は、点光源２５２の発した光を遮る模様を構成している。 The pattern cover 220 includes a light shielding part 221 and a second light transmitting part 222. A light shielding portion 221 is printed on the surface on the Z-axis plus direction side or the surface on the Z-axis minus direction side of the pattern cover 220. The light shielding unit 221 forms a pattern that blocks light emitted from the point light source 252.
　なお、模様カバー２２０には、別部材の透明カバーが重ね合わされていてもよい。模様カバー２２０は、透明カバーのＺ軸プラス方向側の面又はＺ軸マイナス方向側の面に配置されていてもよい。模様カバー２２０は、透明カバーと対応する形状であってもよい。 Note that the pattern cover 220 may be overlaid with a transparent cover as a separate member. The pattern cover 220 may be disposed on the surface on the Z-axis plus direction side or the surface on the Z-axis minus direction side of the transparent cover. The pattern cover 220 may have a shape corresponding to the transparent cover.
　筐体２３０は、制御回路、及び電源部を収容している。筐体２３０は、両端が開口した有底の筒体である。筐体２３０は、Ｚ軸方向に長尺であり、Ｚ軸マイナス方向側の端縁部分が模様カバー２２０と係合している。筐体２３０の内部には、底部分からＺ軸マイナス方向に突出する載置台５０が配置されている。載置台５０は、模様カバー２２０の開口２２０ａを挿通している。 The housing 230 houses a control circuit and a power supply unit. The housing 230 is a bottomed cylinder that is open at both ends. The casing 230 is long in the Z-axis direction, and the edge portion on the Z-axis minus direction side is engaged with the pattern cover 220. Inside the housing 230, a mounting table 50 that protrudes in the negative Z-axis direction from the bottom portion is disposed. The mounting table 50 is inserted through the opening 220 a of the pattern cover 220.
　点光源２５２は、基板２５１を介して載置台５０のＺ軸マイナス方向側の下端の載置面５０ａに載置されている。点光源２５２は、拡散カバー２６０と模様カバー２２０との間に配置されている。点光源２５２は、載置面５０ａに載置された状態において、模様カバー２２０よりもＺ軸マイナス方向に突出している。本実施の形態では、点光源２５２は、Ｚ軸方向において、照明装置２０１を側面から見た場合に、拡散カバー２６０と重なる位置に存在している。なお、照明装置２０１を側面から見た場合に、点光源２５２は、外装カバー２１０と重なる位置に存在していてもよく、拡散カバー２６０及び外装カバー２１０と重なる位置に存在していてもよい。 The point light source 252 is mounted on the mounting surface 50 a at the lower end of the mounting table 50 on the minus side of the Z axis via the substrate 251. The point light source 252 is disposed between the diffusion cover 260 and the pattern cover 220. The point light source 252 protrudes in the negative Z-axis direction from the pattern cover 220 when placed on the placement surface 50a. In the present embodiment, the point light source 252 exists in a position overlapping with the diffusion cover 260 when the illumination device 201 is viewed from the side surface in the Z-axis direction. When the illumination device 201 is viewed from the side, the point light source 252 may exist at a position overlapping the outer cover 210 or may exist at a position overlapping the diffusion cover 260 and the outer cover 210.
　拡散カバー２６０は、点光源２５２、及び模様カバー２２０を覆っている。拡散カバー２６０は、外装カバー２１０の外周部分に固定されている。拡散カバー２６０は、照明装置２０１をＺ軸マイナス方向から見た場合において、模様カバー２２０に描かれている模様が見えないような、所定の曇り度を有する。拡散カバー２６０と模様カバー２２０との距離によって拡散カバー２６０に模様カバー２２０の模様が見えてしまうことがあるため、模様が見えない程度の曇り度を有する。なお、曇り度が低くても、模様カバー２２０が拡散カバー２６０から所定の距離が離れていれば、模様カバー２２０の模様は見えない。このため、拡散カバー２６０の曇り度と、模様カバー２２０と拡散カバー２６０との距離との関係によって、この照明装置２０１では、模様カバー２２０の模様を視認できないようにしている。 The diffusion cover 260 covers the point light source 252 and the pattern cover 220. The diffusion cover 260 is fixed to the outer peripheral portion of the exterior cover 210. The diffusion cover 260 has a predetermined haze so that the pattern drawn on the pattern cover 220 is not visible when the lighting device 201 is viewed from the negative Z-axis direction. Since the pattern of the pattern cover 220 may be visible on the diffusion cover 260 depending on the distance between the diffusion cover 260 and the pattern cover 220, the cloudiness is such that the pattern cannot be seen. Even if the cloudiness is low, the pattern on the pattern cover 220 cannot be seen if the pattern cover 220 is separated from the diffusion cover 260 by a predetermined distance. For this reason, the illumination device 201 prevents the pattern of the pattern cover 220 from being visually recognized by the relationship between the cloudiness of the diffusion cover 260 and the distance between the pattern cover 220 and the diffusion cover 260.
　拡散カバー２６０は、例えば、基材の表面にケシ加工が施されてもよく、微細構造の凹凸が形成されたプリズムシートが基材の表面に貼られていてもよく、基材に光拡散性を有する透光性の部材が内包されていてもよく、基材に無数の気泡を形成した透光性の部材であってもよい。 For example, the diffusion cover 260 may be subjected to a popping process on the surface of the base material, or a prism sheet on which irregularities of a fine structure are formed may be attached to the surface of the base material. A translucent member having a light emitting property may be included, or a translucent member in which an infinite number of bubbles are formed on a base material.
　この照明装置２０１では、点光源２５２が発する光は、模様カバー２２０に入射して、一部が遮光部２２１で遮光され、残りが模様カバー２２０の第２透光部４２を通過し造営材に投影する。模様カバー２２０を透光した光は、造営材に照射される。これにより、図１５に示すように、模様カバー２２０に対応した模様が造営材に投影される。また、点光源２５２が発する光は拡散カバー２６０にも入射し、拡散カバー２６０を透光する。これにより、拡散カバー２６０からは、拡散された光が出射する。この照明装置２０１では、周囲を照明するとともに、造営材に模様カバー２２０に対応した模様を造営材に投影する。図１５は、実施の形態２に係る照明装置２０１の点灯時を示す斜視図である。 In this lighting device 201, the light emitted from the point light source 252 is incident on the pattern cover 220, part of which is shielded by the light shielding part 221, and the rest passes through the second light transmitting part 42 of the pattern cover 220 and becomes a construction material. Project. The light transmitted through the pattern cover 220 is applied to the construction material. Thereby, as shown in FIG. 15, the pattern corresponding to the pattern cover 220 is projected on the construction material. Further, the light emitted from the point light source 252 enters the diffusion cover 260 and is transmitted through the diffusion cover 260. Thereby, the diffused light is emitted from the diffusion cover 260. The lighting device 201 illuminates the surroundings and projects a pattern corresponding to the pattern cover 220 onto the construction material. FIG. 15 is a perspective view illustrating the lighting device 201 according to Embodiment 2 when it is turned on.
　［作用効果］
　次に、本実施の形態における照明装置２０１の作用効果について説明する。 [Function and effect]
Next, the effect of the lighting device 201 in this embodiment will be described.
　上述したように、本実施の形態に係る照明装置２０１は、さらに、拡散カバー２６０と模様カバー２２０との間に配置され、模様カバー２２０を覆う拡散カバー２６０を支持する支持体を備える。また、点光源２５２は、拡散カバー２６０と模様カバー２２０との間に配置される。そして、支持体は、点光源２５２が発する光を遮る。 As described above, the illumination device 201 according to the present embodiment further includes a support that is disposed between the diffusion cover 260 and the pattern cover 220 and supports the diffusion cover 260 that covers the pattern cover 220. The point light source 252 is disposed between the diffusion cover 260 and the pattern cover 220. And a support body interrupts the light which the point light source 252 emits.
　照明装置２０１を造営材に設置した場合において、点光源２５２が点灯すると、点光源２５２が発する光のうち、一部の光は、拡散カバー２６０に入射し、拡散カバー２６０を透光する。これにより、拡散カバー２６０からは、拡散された光が出射することで、周囲を照明する。また、別の一部の光は模様カバー２２０の遮光部２２１で遮光され、残りの光は模様カバー２２０の透光部を透光する。点光源２５２の発する光のうち、遮光部２２１で遮光された部分によって影ができることで、模様カバー２２０を透光した光によって造営材に模様が投影される。 When the lighting device 201 is installed on the construction material, when the point light source 252 is turned on, part of the light emitted from the point light source 252 is incident on the diffusion cover 260 and is transmitted through the diffusion cover 260. Accordingly, the diffused light is emitted from the diffusion cover 260 to illuminate the surroundings. Another part of the light is shielded by the light shielding part 221 of the pattern cover 220, and the remaining light is transmitted through the light transmitting part of the pattern cover 220. Of the light emitted from the point light source 252, a shadow is formed by the portion shielded by the light shielding unit 221, so that the pattern is projected onto the construction material by the light transmitted through the pattern cover 220.
　したがって、この照明装置２０１では、壁、天井等の造営材に模様を投影することができる。 Therefore, in this lighting device 201, a pattern can be projected onto construction materials such as walls and ceilings.
　（その他変形例）
　以上、本開示に係る照明装置について、実施の形態１、２及び実施の形態１の変形例に基づいて説明したが、本開示は、上記の各実施の形態１、２及び実施の形態１の変形例に限定されるものではない。 (Other variations)
As mentioned above, although the illuminating device which concerns on this indication was demonstrated based on the modification of Embodiment 1, 2 and Embodiment 1, this indication is the above-mentioned each Embodiment 1, 2, and Embodiment 1. It is not limited to the modified example.
　例えば、上記の各実施の形態１に係る照明装置１において、模様カバー４０をＸ－Ｙ平面に対して平行にしてもよい。この場合において、造営材に投影される模様を大きくするには、模様カバー４０に対する点光源５２の高さを小さくすることが好ましい。なお、模様カバー４０と点光源５２との関係においても、点光源５２を模様カバー４０に近づければ、天井面に投影する模様を大きくすることができるが、近づけ過ぎれば模様が天井面に投影されなくなることがあるため、模様カバー４０に対する点光源５２の高さは、所定範囲となる。 For example, in the illumination device 1 according to each of the first embodiments, the pattern cover 40 may be parallel to the XY plane. In this case, in order to enlarge the pattern projected on the construction material, it is preferable to reduce the height of the point light source 52 with respect to the pattern cover 40. In the relationship between the pattern cover 40 and the point light source 52, if the point light source 52 is brought close to the pattern cover 40, the pattern projected on the ceiling surface can be enlarged, but if it is too close, the pattern is projected on the ceiling surface. In some cases, the height of the point light source 52 with respect to the pattern cover 40 falls within a predetermined range.
　また、上記の各実施の形態１、２及び実施の形態１の変形例に係る照明装置において、室内にこれらを設置して点灯した場合のシステムを図１６で示している。これらの照明装置１、２０１を設置することで、さまざまな照明環境を演出することができる。図１６は、変形例に係る複数の照明装置１、２０１を備えるシステムに関する斜視図である。 Further, FIG. 16 shows a system in the case where the lighting devices according to the above-described first and second embodiments and the modified example of the first embodiment are installed and lit in the room. By installing these lighting devices 1 and 201, various lighting environments can be produced. FIG. 16 is a perspective view of a system including a plurality of lighting devices 1 and 201 according to a modification.
　また、上記の各実施の形態１、２及び実施の形態１の変形例に係る照明装置において、模様カバーを遮光部だけで構成してもよい。この場合、第２透光部は、空洞となる。このため、第２透光部は、透明な材料に限定されず、模様カバーに形成される開口を意味してもよい。 Further, in the illumination devices according to the above-described first and second embodiments and the modified example of the first embodiment, the pattern cover may be configured by only the light shielding portion. In this case, the second light transmitting part is a cavity. For this reason, a 2nd light transmission part is not limited to a transparent material, You may mean the opening formed in a pattern cover.
　また、上記の各実施の形態１、２及び実施の形態１の変形例に係る照明装置において、模様カバーは着脱自在であり、適宜、模様カバーを交換することができる。 Further, in the lighting devices according to the above-described first and second embodiments and the modifications of the first embodiment, the pattern cover is detachable, and the pattern cover can be appropriately replaced.
　なお、上記の各実施の形態１、２及び実施の形態１の変形例に対して当業者が思い付く各種変形を施して得られる形態や、本開示の趣旨を逸脱しない範囲で各実施の形態１、２及び実施の形態１の変形例における構成要素および機能を任意に組み合わせることで実現される形態も本開示に含まれる。 It should be noted that each of the first and second embodiments and the modifications of the first embodiment can be obtained by applying various modifications that can be conceived by those skilled in the art, and the first embodiment without departing from the spirit of the present disclosure. 2 and a mode realized by arbitrarily combining the components and functions in the modified example of the first embodiment are also included in the present disclosure.
１、１１、２０１　照明装置
３０　透光支持カバー（透光カバー）
４０、４０ａ、４０ｂ、４０ｃ、２２０　模様カバー
４２、４２ａ、４２ｂ、４２ｃ、２２２　第２透光部（透光部）
４３、４３ａ、４３ｂ、４３ｃ、２２１　遮光部
５２、２５２、３５２　点光源
７０、２６０　拡散カバー
１０１、２１０　外装カバー（支持体）
１１０　第１ベース部材（遮蔽体）
１２０　第２ベース部材（遮蔽体）
１３０　発光モジュール 1, 11, 201 Illumination device 30 Translucent support cover (translucent cover)
40, 40a, 40b, 40c, 220 Pattern cover 42, 42a, 42b, 42c, 222 Second light transmitting part (light transmitting part)
43, 43a, 43b, 43c, 221 Light-shielding part 52, 252, 352 Point light source 70, 260 Diffusion cover 101, 210 Exterior cover (support)
110 First base member (shield)
120 Second base member (shield)
130 Light Emitting Module

Claims (6)

  1. 　光を発する点光源と、
    　前記点光源の発した光が透光する透光部と、前記点光源の発した光を遮る遮光部とを有し、前記点光源の後方に配置される模様カバーと、
    　透光性を有し、前記模様カバー及び前記点光源の前方に配置され、後方からの光を拡散して前方に出射する拡散カバーとを備える
    　照明装置。     A point light source that emits light;
    A pattern cover that has a light-transmitting part that transmits light emitted from the point light source and a light-shielding part that blocks light emitted from the point light source;
    An illuminating device, comprising: a light-transmitting diffuser cover that is disposed in front of the pattern cover and the point light source and diffuses light from the rear and emits the light forward.
  2. 　前記模様カバーは、
    　　錐台状であり、
    　　前記点光源を囲み、かつ、前記点光源から遠ざかるに従って前記錐台の径が小さくなるように配置されている
    　請求項１に記載の照明装置。     The pattern cover is
    Frustum-shaped,
    The illuminating device according to claim 1, wherein the illumination device is disposed so as to surround the point light source and to reduce a diameter of the frustum as the distance from the point light source increases.
  3. 　さらに、
    　前記模様カバーの後方に配置され、前記模様カバーを透光した光を出射する透光カバーと、
    　前記拡散カバーに向けて光を発する発光モジュールと、
    　前記透光カバー、前記模様カバー、及び前記点光源と、前記発光モジュール、及び前記拡散カバーとの間を仕切る姿勢で配置され、前記拡散カバー側の面に前記発光モジュールを保持する遮蔽体とを備え、
    　前記拡散カバーは、前記発光モジュールを覆い、後方にある前記発光モジュールが発した光を拡散して出射し、
    　前記遮蔽体は、遮光性を有する
    　請求項１又は２に記載の照明装置。     further,
    A translucent cover that is disposed behind the pattern cover and emits light that is transmitted through the pattern cover; and
    A light emitting module that emits light toward the diffusion cover;
    A shielding member that is arranged in a posture that partitions the light-transmitting cover, the pattern cover, and the point light source, the light-emitting module, and the diffusion cover, and that holds the light-emitting module on a surface on the diffusion cover side; Prepared,
    The diffusion cover covers the light emitting module, diffuses and emits light emitted by the light emitting module behind,
    The lighting device according to claim 1, wherein the shield has a light shielding property.
  4. 　前記点光源は、前記模様カバーに向けて光を発する姿勢で前記遮蔽体に配置されている
    　請求項３に記載の照明装置。     The lighting device according to claim 3, wherein the point light source is disposed on the shield in a posture of emitting light toward the pattern cover.
  5. 　さらに、前記拡散カバーと前記模様カバーとの間に配置され、前記模様カバーを覆う前記拡散カバーを支持する支持体を備え、
    　前記点光源は、前記拡散カバーと前記模様カバーとの間に配置され、
    　前記支持体は、前記点光源が発する光を遮る
    　請求項１に記載の照明装置。     Furthermore, a support body that is disposed between the diffusion cover and the pattern cover and supports the diffusion cover that covers the pattern cover,
    The point light source is disposed between the diffusion cover and the pattern cover,
    The illumination device according to claim 1, wherein the support blocks light emitted from the point light source.
  6. 　消灯時に前記照明装置を見た場合に、前記模様カバーは、前記拡散カバーを介して前記模様カバーの模様が見えない態様で配置されている
    　請求項１～５のいずれか１項に記載の照明装置。     The illumination according to any one of claims 1 to 5, wherein the pattern cover is arranged in such a manner that the pattern of the pattern cover cannot be seen through the diffusion cover when the illumination device is viewed when the light is turned off. apparatus.
PCT/JP2019/021999 2018-06-08 2019-06-03 Lighting device WO2019235428A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010170959A (en) * 2009-01-26 2010-08-05 Panasonic Electric Works Co Ltd Luminaire
JP2017045624A (en) * 2015-08-27 2017-03-02 日立アプライアンス株式会社 LED lighting device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010170959A (en) * 2009-01-26 2010-08-05 Panasonic Electric Works Co Ltd Luminaire
JP2017045624A (en) * 2015-08-27 2017-03-02 日立アプライアンス株式会社 LED lighting device

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