JP4855301B2 - lighting equipment - Google Patents

Description

  The present invention relates to, for example, a luminaire including a light emitting diode (LED) as a light source, and particularly relates to a luminaire that can freely adjust the light distribution of illumination.

In the prior art, in order to control the light distribution of a luminaire using an LED as a light source, a lens body in which lenses having different light distributions are alternately arranged is slid with respect to the light source to switch the lens corresponding to the LED. Discloses a technique for changing the light distribution (see Patent Document 1). In addition, a technique is disclosed in which light distribution is controlled by switching lenses by rotating circular lens bodies in which lenses having different light distributions are alternately arranged with respect to a light source (see Patent Document 2). Also disclosed is a technique for forming an arbitrary irradiation pattern at an arbitrary distance with a combination of a reflecting mirror, an aspherical lens, and a lens cover having optical characteristics for light emitted from an LED as a single light source. (See Patent Document 3).
JP 2004-199891 A JP 2005-317557 A JP 2006-286615 A

  Conventional lighting fixtures such as Patent Literature 1 or Patent Literature 2 have a problem that the type of lens needs to be changed when controlling the light distribution of illumination. Furthermore, there is a problem that it is difficult to finely adjust the light distribution in order to adjust the light distribution by changing the type of lens. Moreover, in the lighting fixture like patent document 3, there exists a subject that it is difficult to adjust light distribution uniformly at once with respect to the light of illumination by several LED.

  The present invention has been made, for example, in order to solve the above-described problems. It is possible to adjust a light distribution without changing a lens, and to further provide a luminaire that enables fine adjustment. The purpose is to provide. Moreover, it aims at providing the lighting fixture which can adjust light distribution uniformly at once with respect to the light of illumination by several LED.

  A luminaire according to the present invention is disposed to face a light emitting surface of a light source disposition unit, a light source disposition unit disposed with a plurality of light emitting diodes (LEDs) as a light source, a mounting base to which the light source disposition unit is attached. A lens disposition plate for disposing a plurality of lenses on a flat lens frame so as to face each of the plurality of LEDs; and moving the lens disposition plate in a direction perpendicular to the lens disposition plate. And a light distribution adjusting mechanism that adjusts the light distribution from the light source arrangement portion by changing the distance between the lens arrangement plate and the light source arrangement portion attached to the mount.

  The luminaire according to the present invention is disposed so as to face a light source surface of a light source disposition unit that disposes a plurality of light emitting diodes (LEDs) as a light source, and to face each of the plurality of LEDs. In this way, a plurality of lenses are arranged on a flat lens frame, and the lens arrangement plate is attached to the lens arrangement plate and the mounting base by moving the lens arrangement plate in a direction perpendicular to the lens arrangement plate. A light distribution adjustment mechanism that adjusts the light distribution from the light source arrangement section by changing the distance to the light source arrangement section, so that when adjusting the light distribution of the illumination, There is an effect that the light distribution can be easily adjusted without changing the type. Moreover, there exists an effect that the light distribution of several LED can be adjusted uniformly at once.

  Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is a front view illustrating an example of a light source arrangement unit 20 of the lighting fixture 100 according to Embodiment 1. FIG. FIG. 2 is a front view showing an example of the lens arrangement plate 10 of the lighting fixture 100 according to Embodiment 1. FIG. FIG. 3 is a front view showing an example of the lighting fixture 100 according to the first embodiment. FIG. 4 is a side view from the direction A of FIG. 3 in the lighting apparatus 100 according to the first embodiment.

  The luminaire 100 according to the present embodiment includes a light source arrangement portion 20 attached to the mounting base 22 shown in FIG. 1 and a lens arrangement plate 10 shown in FIG. As shown in FIG. 3, the lighting fixture 100 has the lens arrangement plate 10 disposed so as to face the light emitting surface of the light source arrangement portion 20. And as shown in FIG. 4, the lighting fixture 100 arrange | positions the lens arrangement | positioning board 10 so that the light emission surface of the light source arrangement | positioning part 20 may be opposed, and the lens arrangement | positioning board 10 is made into a perpendicular direction (B direction). By moving back and forth, the distance m between the lens arrangement plate 10 and the light source arrangement unit 20 is changed, and a light distribution adjustment mechanism 30 that adjusts the light distribution from the light source arrangement unit 20 is provided. is there.

  The light source arrangement | positioning part 20 which has arrange | positioned several LED21 as a light source is demonstrated using FIG.

  In the light source arrangement unit 20, six LEDs 21 are arranged at equal intervals on a circumference having a predetermined radius with one LED 21 as the center. The arrangement position of the plurality of LEDs 21 in the light source arrangement unit 20 is not limited to this, and the plurality of LEDs 21 may be arranged in any way. However, in consideration of the design of the lighting fixture 100 and the uniformity of light emitted from a plurality of LEDs, it is preferable to arrange them at regular intervals.

  The mounting base 22 is a base for mounting the light source arrangement portion 20. For example, in the case of a lighting fixture such as a spotlight, it is a portion that constitutes a part of the casing of the lighting fixture (spotlight), and is a portion to which the light source arrangement portion 20 is attached.

  The shaft hole 311 is a hole for passing a shaft 310 described later. In FIG. 1, the light source arrangement portion 20 has a substantially quadrangular shape, and four shaft holes 311 are provided near the outside of the four corners. The shaft hole 311 is for passing a shaft 310 fixed to the lens mounting plate 10 described later, and the position of the shaft hole 311 depends on the position of the shaft 310 fixed to the lens mounting plate 10. Can be decided.

  With reference to FIG. 2, the lens arrangement plate 10 arranged to face the light source arrangement unit 20 will be described.

  In the lens arrangement plate 10, seven substantially regular hexagonal Fresnel lenses 11 having the same size are arranged on a lens frame 13. As for the arrangement positions of the seven Fresnel lenses 11, six Fresnel lenses 11 are arranged around the center of one Fresnel lens 11, and the lens honeycomb portion 12 is formed by the seven Fresnel lenses 11.

  The size of each of the Fresnel lenses 11 is such that each of the seven LEDs arranged in the light source arrangement unit 20 when the lens arrangement plate 10 is overlaid on the light source arrangement unit 20 The size is designed so as to be located on a substantially central axis.

  The lens frame 13 is provided with a shaft fixing portion 15 for fixing a shaft 310 described later.

  Here, the Fresnel lens 11 is not limited to a regular hexagon. For example, a triangle (regular triangle), a quadrangle (regular tetragon), a circle (elliptical), an octagon (regular octagon), and the like. The shape may be any. In the present embodiment, one Fresnel lens 11 is formed to correspond to one LED. However, the present invention is not limited to this. For example, one Fresnel lens for two LEDs. You may make it correspond.

  However, in order to make the light distribution of the plurality of LEDs 21 which are light sources uniform, it is preferable that one Fresnel lens 11 corresponds to one LED. In addition, it is preferable to design so that when one Fresnel lens 11 is associated with one LED, the corresponding LED is positioned substantially on the central axis of the Fresnel lens. Further, it is preferable that the lens bridge portion 14 where the lenses are adjacent to each other is formed as thin as possible so as not to disturb the light distribution from the LED.

  The type of lens is not limited to the Fresnel lens, and other lenses such as an aspherical lens and a prism lens may be used as long as the light distribution can be adjusted.

  FIG. 3 is a front view of the lighting fixture 100 according to the first embodiment, and shows a front view of the lighting fixture 100 when the lens arrangement plate 10 is arranged to face the light emitting surface of the light source arrangement section 20. ing. When the lens arrangement plate 10 is arranged so as to face the light source arrangement portion 20, the lens arrangement plate 10 is arranged so that each LED 21 is positioned on each substantially central axis of the Fresnel lens 11.

  Next, the light distribution adjustment mechanism 30 of the lighting fixture 100 according to Embodiment 1 will be described with reference to FIG.

  The shaft 310 is fixed to the four shaft fixing portions 15 of the lens mounting plate 10, extends from the shaft fixing portion 15 in the vertical direction of the lens mounting plate 10, and is a shaft hole provided in the mounting base 22. 311 passes through the mounting base 22 and is fixed to the moving plate 32 on the opposite side of the mounting base 22 from the light source arrangement portion 20 side.

  The moving plate 32 is connected by the shaft 310 substantially parallel to the lens arrangement plate 10 with the mount 22 interposed therebetween.

  The compression springs 39 are provided at four shaft 310 portions between the lens mounting plate 10 and the mounting base 22. The compression spring 39 is an example of an elastic body. Even when the distance m between the lens arrangement plate 10 and the light source arrangement portion 20 is maximized by the compression spring 39, the lens arrangement is made so that no play occurs between the lens arrangement plate 10 and the mounting base 22. A tension is applied between the installation plate 10 and the mounting base 22. With this tension, it is possible to maintain the flatness of the lens mounting plate 10 when adjusting the light distribution. Accordingly, it is preferable that the compression springs 39 provided in the four shaft 310 portions are elastic bodies having the same tension. In the present embodiment, the compression spring 39 is provided in the shaft 310 portion, but the present invention is not limited to this, and even when the distance m between the lens arrangement plate 10 and the light source arrangement portion 20 is maximized, the lens is not limited thereto. As long as an elastic body is installed so that play does not occur between the arrangement plate 10 and the mounting base 22, it may be installed anywhere. However, at this time, it is necessary to prevent the light distribution from the light source arrangement unit 20 from being disturbed.

  Thus, the lens arrangement plate 10, the shaft 310, the moving plate 32, and the compression spring 39 constitute an integral structure portion 31 that is an integral structure. The monolithic structure portion 31 is freely movable in the B (front and back vertical) reciprocating direction with the mounting base 22 interposed therebetween. However, when no force is applied to the integral structure portion 31 due to the tension of the compression spring 39, the distance m between the lens placement plate 10 and the light source placement portion 20 is the maximum value.

  The light distribution adjusting mechanism 30 moves the integrated structure 31 freely in the B reciprocating direction by adjusting the distance l between the moving plate 32 and the mounting base 22 by a distance adjusting means 38 to be described later. It is a mechanism that can control the light distribution. That is, the distance adjusting means 38 adjusts the distance m between the lens arrangement plate 10 and the light source arrangement portion 20 attached to the attachment table 22 by adjusting the distance l between the moving plate 32 and the attachment table 22. The light distribution pattern of the light emitted from the light source arrangement unit 20 can be controlled.

  Next, the distance adjusting means 38 for adjusting the distance l between the moving plate 32 and the light source arrangement unit 20 will be described.

  The moving plate 32 is provided with a screw hole 36 provided with threading. Further, an adjustment holding base 33 including an adjustment holding board 34 that is positioned substantially parallel to the moving plate 32 is installed on the opposite side of the mounting base 22 to the light source arrangement portion 20 side. The adjustment holding stand 33 has a hat cross-sectional shape (or a U shape) in a side view, and an upper surface portion of the hat cross-section is an adjustment holding plate 34. Further, the adjustment holding base 33 is fixed to the mounting base 22 at the collar portion of the hat cross section.

  The adjustment holding plate 34 is provided with a hole 341 for passing the screw rod 35 at a position overlapping the screw hole provided in the moving plate 32 in a state of being installed substantially parallel to the moving plate 32. The hole 341 is a hole having a diameter that allows the screw rod 35 to rotate in a state in which the screw rod 35 is passed, and is not provided with threading.

  The screw rod 35 includes a knob 37 at the outer end of the adjustment holding plate 34, is inserted into the hole 341, and is screwed into the screw hole 36 of the moving plate 32. The position of the knob 37 is held outside the adjustment holding plate 34. By rotating the knob 37 in one direction, the screwing position of the screw rod 35 and the screw hole 36 of the moving plate 32 is pulled toward the adjustment holding plate 34. That is, the mounting base 22 and the adjustment holding plate 34 are fixed and do not move, but the integral structure portion 31 is attracted to the adjustment holding plate 34, and the distance l between the moving plate 32 and the mounting base 22 increases. As a result, the distance m between the light source arrangement portion 20 and the lens arrangement plate 10 is reduced by the amount that the distance l is increased. Further, when the screwing position of the screw rod 35 and the screw hole 36 of the moving plate 32 is separated from the adjustment holding plate 34 by turning the knob 37 in the direction opposite to the above-described direction, the integrated structure portion 31 is moved to the adjustment holding plate. The distance l between the moving plate 32 and the mounting base 22 becomes smaller. As a result, the distance m between the light source arrangement portion 20 and the lens arrangement plate 10 increases. In this way, the distance adjusting means 38 that can adjust the distance m between the light source disposing portion 20 and the lens disposing plate 10 by turning the knob 37 is configured.

  In the lighting fixture 100 according to Embodiment 1, the surface of the moving plate 32 on the mounting base 22 side (moving plate inner surface 321) or the surface of the moving plate 32 on the adjustment holding plate 34 side (moving plate outer surface 322). ) May be provided with a stopper 323. By providing a stopper on the outer surface 322 of the moving plate, it is possible to prevent the moving plate 32 and the adjustment holding plate 34 from colliding with each other because the distance l between the moving plate 32 and the mounting base 22 becomes too large. Further, by adjusting the height of the stopper, it is possible to prevent the lens arrangement plate 10 and the light source arrangement unit 20 from colliding with each other. Further, by providing a stopper on the inner surface 321 of the moving plate, the collision between the moving plate 32 and the mounting base 22 can be prevented. Therefore, the stoppers may be installed on both the inner surface 321 of the moving plate and the outer surface 322 of the moving plate.

  As described above, according to the lighting apparatus of the first embodiment, the position of the lens arrangement plate 10 with respect to the light source arrangement section 20 can be easily changed by rotating the screw rod 35 with the knob 37. In addition, subtle light distribution can be controlled by adjusting the thumbscrew.

Embodiment 2. FIG.
In the first embodiment, the lighting fixture that controls the light distribution by rotating the screw rod 35 with the knob 37 has been described, but in the second embodiment, the lighting fixture 100 that rotates the screw rod 35 with a motor will be described. .

  FIG. 5 is a side view of the lighting apparatus 100 according to the second embodiment.

  The same components as those of lighting apparatus 100 according to Embodiment 1 (FIG. 4) are denoted by the same reference numerals, and the description thereof is omitted.

  The difference from the lighting apparatus of the first embodiment is that a motor 40 is installed at the outer end of the adjustment holding plate 34 of the screw rod 35 instead of the knob 37 and the screw rod 35 is rotated by the motor 40. It is.

  The motor 40 includes a switch 401. The switch 401 may have a switching function for selecting screw clockwise, screw counterclockwise, or cutting. Alternatively, the switch 401 may be used to switch the distance l between the lens arrangement plate 10 and the light source arrangement unit 20 so as to increase or decrease stepwise.

  Alternatively, a function of rotating the screw rod 35 by controlling the motor 40 with a remote controller may be provided.

  As described above, according to the lighting apparatus 100 according to the second embodiment, the motor 40 for rotating the screw rod 35 is provided outside the adjustment holding plate 34, and the motor 40 rotates the screw rod 35 to rotate the screw rod 35. The distance l between the mounting base 22 and the moving plate 32 can be adjusted by adjusting the screwing position of the moving plate 32 and the screw hole 36 of the moving plate 32. Even when installed, the light distribution pattern can be controlled by an operation such as remote control. Further, by adjusting the screw rod 35 by the motor 40, it is possible to finely adjust the light distribution.

Embodiment 3 FIG.
In the third embodiment, a plurality of tapered disks are provided between the moving plate 32 and the mounting table 22 of the integrated structure portion 31 installed with the mounting table 22 interposed therebetween, and the moving plate 32 and the mounting table 22 are provided. A method of adjusting the distance 1 of the will be described.

  FIG. 6 is a side view of the lighting apparatus 100 according to the third embodiment.

  Constituent elements that are the same as those of the lighting fixture of Embodiment 1 (FIG. 4) are assigned the same reference numerals, and descriptions thereof are omitted.

  In the third embodiment, the luminaire 100 includes a disc thickness adjusting unit 50 including two tapered discs A51 and B52 between the moving plate 32 and the mounting base 22 of the integral structure unit 31. .

  The tapered disc B52 in contact with the mounting base 22 and the tapered disc A51 in contact with the moving plate inner surface 321 have a central axis connecting the two discs at their substantially central portions. Have. The tapered disk A51 in contact with the moving plate 32 is fixed to the inner surface 321 of the moving plate and cannot rotate. The tapered disc B52 in contact with the mounting base 22 has a disc knob 53, and is installed so as to be rotatable about the central axis. The positional relationship between the tapered disk A51 and the tapered disk B52 is usually such that the height of the disk of the tapered disk A51 is the largest and the height of the disk of the tapered disk B52 is the smallest. The upper and lower surfaces of the disc thickness adjusting portion 50 are parallel to each other, the tapered disc A51 is in contact with the inner surface 321 of the moving plate, and the surface of the tapered disc B52 is in contact with the mounting base 22. It is in a state.

  In order to adjust the distance l between the lens arrangement plate 10 and the light source arrangement portion 20, the circular disc knob 52 is rotated to rotate the tapered disc B52, and the height of the disc of the tapered disc A51 is adjusted. From the normal state (the state where the distance l is minimum) where the portion with the largest is overlapped with the portion with the smallest height of the tapered disc B52, the height of the disc of the tapered disc A51 gradually increases. The maximum portion and the portion having the maximum height of the disc of the tapered disc B52 are changed to a state where the portion having the maximum height (the distance l is the maximum). In this way, the distance m between the lens arrangement plate 10 and the light source arrangement unit 20 can be adjusted, and the light distribution of the light emitted from the light source arrangement unit 20 can be adjusted.

  At this time, since the tension is applied between the lens mounting plate 10 and the mounting base 22 by the compression spring 39, the planarity of the lens mounting plate 10 with respect to the light source mounting portion 20 is maintained.

  In the present embodiment, the case where the tapered disc A51 is fixed to the moving plate has been described. However, the present invention is not limited to this, and the tapered disc B52 is fixed to the mounting base 22 and is tapered. The disk A51 may be rotated. Further, the tapered disc A51 and the tapered disc B52 may be rotated around the central axis.

  As described above, according to the luminaire 100 of Embodiment 3, in at least two or more tapered disks provided in the disk thickness adjusting unit 50, the disk thickness is adjusted by combining the thicknesses of the respective disks. Since the distance between the mounting base 22 and the moving plate 32 can be adjusted by changing the thickness of the portion 50 and using the tension of the compression spring 39 (elastic body), an adjustment function can be provided with a simple structure. Manufacturing costs can be reduced.

Embodiment 4 FIG.
In the fourth embodiment, the moving plate 32 and the mounting base 22 are inserted by inserting a tapered adjusting rod between the moving base 32 and the mounting base 22 of the integral structure portion 31 that is installed with the mounting base 22 interposed therebetween. The lighting fixture 100 provided with the distance adjustment means 38 which adjusts the distance 1 of will be described.

  FIG. 7 is a side view of the lighting fixture 100 according to the fourth embodiment.

  The same components as those of the lighting device of Embodiment 1 (FIG. 4) are denoted by the same reference numerals, and the description thereof is omitted.

  The luminaire 100 according to the fourth embodiment includes a tapered adjustment rod 60 between the moving plate 32 and the mounting base 22 of the integrated structure portion 31. The tapered adjustment rod 60 is tapered so that its height (width) h gradually increases (larger) from the tip 601. Therefore, when the distal end portion 601 of the tapered adjustment rod 60 is inserted between the moving plate 32 and the mounting base 22, and the insertion distance n becomes longer, the distance l between the moving plate 32 and the mounting base 22 becomes larger. It gets bigger. In addition, since tension is applied between the mount 22 and the lens mounting plate 10 by the compression spring 39, the flatness of the lens mounting plate 10 with respect to the light source mounting portion 20 is maintained.

  A stopper 61 is provided on the surface of the tapered adjustment rod 60 that contacts the mounting base 22. The stopper 61 can fix the distance l between the moving plate 32 and the mounting base 22 in a stepwise manner. The stopper 61 has a convex portion formed at one position on the surface of the tapered adjustment rod 60 that contacts the mounting base 22 and the tapered adjustment rod 60 at a plurality of locations so that the length of the distance l changes stepwise. It is comprised from the recessed part for fixing a convex part. The recesses are formed at a plurality of locations on the surface of the mounting base 22 in contact with the tapered adjustment rod 60. The convex portion is fitted into the concave portion, and the tapered adjustment rod 60 is fixed in stages by the stopper 61.

  As described above, according to the luminaire 100 of the fourth embodiment, the tapered adjusting rod 60 is moved between the moving plate 32 and the mounting base 22, so that the width (height h) of the tapered adjusting rod 60 is increased. ) And the distance l between the mounting base 22 and the movable plate 32 can be adjusted using the tension of the compression spring 39 (elastic body), so that the adjustment function can be provided with a simple structure, Cost can be reduced.

Embodiment 5 FIG.
In the fifth embodiment, the lens honeycomb plate 12 of the monolithic structure portion 31 installed with the mounting base 22 interposed therebetween is opened at the lens honeycomb portion 12 so that the lens honeycomb portion 12 of the lens arrangement plate 10 is not hidden. The luminaire 100 having a function of adjusting the distance m between the lens arrangement plate 10 and the light source arrangement section 20 by being pushed in by the lid-shaped lid cover body 80 will be described.

  FIG. 8: is the front view (a) of the lighting fixture 100 which concerns on Embodiment 5, and the side view (b) from the EE cross section.

  The same components as those of the first embodiment (FIG. 4) are denoted by the same reference numerals and the description thereof is omitted.

  A tension is applied by a compression spring 39 between the lens arrangement plate 10 and the mounting base 22 of the integral structure portion 31. When no force is applied to the integral structure portion 31, the tension m is the maximum value (the distance l between the moving plate 32 and the mounting base 22). Is the minimum value) and there is no play. Therefore, a state in which no force is applied to the integral structure portion 31 means that the distance m between the lens arrangement plate 10 and the light source arrangement portion 20 is the largest. Therefore, the distance m can be gradually decreased from the maximum value by applying a force in the direction D from the outside of the lens mounting plate 10 so as to face the tension of the compression spring 39.

  The screw base 81 is provided in a circular shape so as to surround the lens arrangement plate 10. A threaded portion 811 is provided outside the screw base 81.

  The lid cover body 80 is in the form of a lid, and a lid opening portion 82 where a portion overlapping the lens honeycomb portion 12 of the lens arrangement plate 10 is open, and a portion that is not open and is in the lens arrangement plate 10. A lid upper surface portion 86 composed of an edge portion 83 that overlaps a part (overlapping portion 85) and a side surface 84 provided with a threaded portion 841 that is screwed into the threaded portion 811 of the screw base 81 are provided inside. The lid cover body 80 is configured such that the lens mounting plate 10 positioned by the tension of the compression spring 39 is pushed by the edge 83 of the lid upper surface portion 86 while the threaded portion 811 of the screw base 81 and the lid cover body. 80 threaded portions 841 are screwed together. The lens arrangement plate 10 is pushed in by the overlapping portion 85 where the edge portion 83 of the lid cover body 80 and the lens arrangement plate 10 overlap. As the lid cover body 80 pushes in the lens arrangement plate 10, the distance m between the lens arrangement plate 10 and the light source arrangement portion 20 becomes shorter. Further, the distance m between the lens arrangement plate 10 and the light source arrangement section 20 is increased by rotating the lid cover body 80 in the reverse direction to the rotation in which it is pushed. In this way, the distance m between the lens arrangement plate 10 and the light source arrangement unit 20 can be adjusted.

  As described above, according to the lighting apparatus 100 of the fifth embodiment, the lid cover body 80 pushes the lens arrangement plate 10 positioned by the tension of the compression spring 39 with the edge 83 of the lid upper surface portion 86. Since the screw cutting portion 811 of the screw base 81 and the screw cutting portion 841 of the lid cover body 80 are screwed together, the distance m between the lens arrangement plate 10 and the light source arrangement portion 20 can be adjusted. The light distribution adjusting mechanism 30 can be provided with a simple structure, and the manufacturing cost can be reduced. Further, since the adjustment can be made at the screwing position between the lid cover body 80 and the screw base 81, a delicate distance can be adjusted. Moreover, since adjustment from the light emission surface (front side) of the lighting fixture 100 is attained, a user can adjust a light distribution pattern easily.

Embodiment 6 FIG.
The lighting fixture 100 of Embodiment 6 demonstrates the light distribution adjustment mechanism 30 when not having the integral structure part 31 with which the lighting fixture of Embodiments 1-5 is provided.

  FIG. 9: is the front view (a) of the lighting fixture 100 which concerns on Embodiment 6, and the side view (b) from the FF cross section.

  The same components as those of the first embodiment (FIG. 4) are denoted by the same reference numerals and the description thereof is omitted.

  The light distribution adjusting mechanism 30 according to the present embodiment includes a lens arrangement lid 90 (an example of a lens arrangement plate), which will be described later, and a screw base 72 provided on the mounting base 22. Hereinafter, the configuration will be described.

  The lens mounting lid 90 has a lens-like shape having a cylindrical side surface portion 73 provided with a threaded portion 731 inside. Therefore, the lens arrangement lid 90 has a structure in which the lens honeycomb portion 12 is provided on the lid portion (the upper surface of the lens arrangement lid 90).

  The screw base 72 is a cylindrical screw base 72 provided so as to surround the light source arrangement portion 20, and a threaded portion 721 is provided outside the cylindrical screw base 72.

  The distance m between the lens placement lid 90 and the light source placement portion 20 is adjusted by screwing with the threading portion 731 of the lens placement lid 90 and the threading portion 721 of the screw base 72. In other words, the user freely adjusts the distance m between the upper surface of the lens arrangement lid 90 and the light source arrangement section 20 by freely rotating the lens arrangement lid 90 in the reciprocal rotation direction C to obtain a desired light distribution. Can be adjusted to.

  At this time, since the lens honeycomb portion 12 itself is rotating, when the user stops the lens placement lid 90 at a desired light distribution position, the LED 21 of the light source placement portion 20 is not necessarily the lens honeycomb portion 12. It is not necessarily located at the approximate center of the Fresnel lens 11. Therefore, the lighting fixture 100 of the present embodiment has a positioning plunger so that the LED 21 is positioned substantially at the center of the Fresnel lens 11 when the user stops the lens arrangement lid 90 at a desired light distribution position. 75 (an example of a positioning pin) and a positioning hole 76 are provided.

  The positioning plunger 75 is provided on the inner side of the screw base 72 and is movable up and down by a spring force. Further, the positioning hole 76 is provided in the lens frame 93 of the lens mounting lid 90, and the positioning plunger 75 is located at a position where each LED 21 is positioned approximately at the center of each Fresnel lens 11 as the lens mounting lid 90 rotates. Is provided so as to be fitted into the positioning hole 76 by a spring force. The fitting force is preferably a fitting force that allows the user to continue adjusting the light distribution even if the positioning plunger 75 and the positioning hole 76 are once fitted.

  As described above, according to the lighting fixture 100 of the sixth embodiment, the light distribution adjustment function can be provided with a simple structure, and the manufacturing cost can be suppressed. Further, since the adjustment can be made at the screwing position between the lens arrangement lid 90 and the screw base 72, a delicate distance can be adjusted. Moreover, since adjustment from the light emission surface (front side) of the lighting fixture 100 is attained, a user can adjust a light distribution pattern easily.

Embodiment 7 FIG.
In the present embodiment, another example of the light source arrangement unit 20 of the lighting fixture 100 will be described.

  FIG. 10 is a diagram illustrating an example of the light source arrangement unit 20 of the lighting fixture 100 according to Embodiment 7. In FIG.

  Seven substantially regular hexagonal openings 23 of the same size are arranged in the light source arrangement part 20 of the luminaire 100 according to the present embodiment. The openings 23 are arranged so that a honeycomb shape is formed by arranging six openings 23 around one opening 23.

  Seven holes 25 are provided corresponding to each of the seven openings 23. In the hole 25, the LED 21 is disposed at the bottom as a light source.

  The hole 25 and the opening 23 constitute a mortar portion 24 formed in a mortar shape from the bottom of the hole 25 to the opening 23. That is, one mortar portion 24 is a bowl shape having a substantially regular hexagonal opening 23, and an LED 21 is provided at the bottom thereof.

  In the light source arrangement part 20, a substantially regular hexagonal opening 23 of the mortar part 24 is arranged around the one opening 23, and six openings 23 are arranged around the opening 23 to form a honeycomb shape. Thus, the mortar part 24 is arrange | positioned.

  Therefore, the front view of the light source arrangement unit 20 according to the present embodiment is as shown in FIG. The side surface formed in the shape of a mortar of each mortar part 24 may include a reflector for reflecting the light emitted by the LED 21. By providing the reflector, the luminous intensity of the light emitted from the LED 21 of the light source arrangement unit 20 is improved, which is suitable when, for example, the lighting fixture 100 is used as a spotlight or the like.

  The light source arrangement unit 20 according to the present embodiment can be used as the light source arrangement unit of the luminaire 100 according to Embodiments 1 to 6 described above.

  As described above, according to the present embodiment, it is possible to provide a lighting apparatus 100 that is more excellent in design and suitable for a spotlight.

FIG. 3 is a front view showing an example of a light source arrangement unit 20 of the lighting fixture 100 according to Embodiment 1. FIG. 3 is a front view showing an example of a lens arrangement plate 10 of the lighting fixture 100 according to Embodiment 1. It is a front view which shows an example of the lighting fixture 100 which concerns on Embodiment 1. FIG. FIG. 4 is a side view of the lighting apparatus 100 according to Embodiment 1 from the direction A in FIG. 3. It is a side view of the lighting fixture 100 which concerns on Embodiment 2. FIG. It is a side view of the lighting fixture 100 which concerns on Embodiment 3. FIG. It is a side view of the lighting fixture 100 which concerns on Embodiment 4. FIG. It is the front view (a) and side view (b) of the lighting fixture 100 which concerns on Embodiment 5. FIG. It is the front view (a) and side view (b) of the lighting fixture 100 which concerns on Embodiment 6. FIG. It is a figure which shows the other example of the light source arrangement | positioning part 20 of the lighting fixture 100 which concerns on Embodiment 7. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Lens arrangement | positioning board, 11 Fresnel lens, 12 Lens honeycomb part, 13 Lens frame, 14 Lens bridge part, 15 Axis fixing | fixed part, 20 Light source arrangement part, 21 LED, 22 Mounting stand, 23 Opening part, 24 Mortar part, 25 holes, 30 light distribution adjustment mechanism, 31 integral structure, 32 moving plate, 33 adjustment holding base, 34 adjustment holding plate, 35 screw rod, 36 screw hole, 37 knob, 38 distance adjustment means, 39 compression spring, 40 motor , 50 disc thickness adjustment part, 51 taper disc A, 52 taper disc B, 53 disc knob, 60 taper adjustment rod, 61 stopper, 72 screw base, 73 side part, 75 positioning plunger, 76 Positioning hole, 80 Lid cover body, 81 Screw base, 82 Lid opening, 83 Edge, 84 Side, 85 Overlap, 86 Upper surface portion, 90 lens mounting lid, 93 lens frame, 100 lighting fixture, 221 mounting back side surface, 310 axis, 311 shaft hole, 321 moving plate inner surface, 322 moving plate outer surface, 323 stopper, 341 hole, 401 switch , 601 Tip, 721 Threaded part, 731 Threaded part, 811 Threaded part, 841 Threaded part.

Claims (6)

A light source having a light emitting surface and a surface on the back side of the light emitting surface, and arranging a plurality of LEDs on the light emitting surface ;
It has a mounting base front side and a mounting base back side, and is mounted around the light source mounting part that is attached to the mounting base front side while attaching the rear surface of the light emitting surface of the light source mounting part to the mounting base front side. A mounting base having a shaft hole penetrating from the front side of the mounting base to the back side of the mounting base,
A lens disposing up plate to the light emitting surface of the light source arrangement portion attached to the mount table side Ru is disposed opposite the lens arrangement comprises a respective lens of a plurality of lenses facing each LED of the plurality of LED up plate When,
A moving plate disposed opposite the back surface of the mounting base;
An axis that penetrates the shaft hole of the mounting base, one end of which is fixed to the lens mounting plate and the other end is fixed to the moving plate;
Distance adjusting means for adjusting the distance between the lens arrangement plate and the light emitting surface of the light source arrangement section by adjusting the distance between the back surface of the mounting base and the moving plate. lighting equipment. The moving plate is
It has a moving plate inner surface facing the back surface of the mounting base, a moving plate outer surface opposite to the moving plate inner surface, and a screw hole penetrating from the moving plate inner surface to the moving plate outer surface. ,
The distance adjusting means is
A hat-shaped adjustment holding base having an upper surface portion and a collar portion, the upper surface portion being arranged to face the outer surface of the moving plate and having a hole at a position corresponding to the screw hole of the moving plate of the upper surface portion, An adjustment holding base whose collar is fixed to the back side of the mounting base ;
A screw rod that has a knob at one end, the other end is inserted from the hole on the upper surface, and is screwed into the screw hole of the moving plate from the other end;
An elastic body that applies tension between the lens mounting plate and the mounting base;
The distance adjusting means is attached to the moving plate to which the tension of the elastic body is applied via the shaft by adjusting the screwing position of the screw rod and the screw hole of the moving plate by turning the screw rod with the knob. lighting device according to claim 1, wherein adjusting the distance between the base rear surface. The moving plate is
It has a moving plate inner surface that faces the back surface of the mounting base, a moving plate outer surface that is the opposite side of the moving plate inner surface, and a screw hole that penetrates from the moving plate inner surface to the moving plate outer surface. ,
The distance adjusting means is
A hat-shaped adjustment holding base having an upper surface portion and a collar portion, the upper surface portion being arranged to face the outer surface of the moving plate and having a hole at a position corresponding to the screw hole of the moving plate of the upper surface portion, An adjustment holding base whose collar is fixed to the back side of the mounting base ;
A motor is connected to one end, the other end is inserted from the hole in the upper surface, and a screw rod that is screwed into the screw hole of the moving plate from the other end;
An elastic body that applies tension between the lens mounting plate and the mounting base;
The distance adjusting means is attached to the moving plate to which the tension of the elastic body is applied via the shaft by adjusting the screwing position of the screw rod and the screw hole of the moving plate by rotating the screw rod by a motor. The lighting fixture according to claim 1, wherein the distance from the side surface of the base is adjusted. The distance adjusting means is
An elastic body provided between the lens mounting plate and the mounting base;
A disc thickness adjusting portion formed by stacking at least two tapered discs sandwiched between the moving plate and the mounting base by the tension of the elastic body and having a taper with respect to the thickness;
The distance adjusting means is
By rotating at least one of the at least two tapered discs, the thickness of the disc thickness adjusting portion is changed and moved with the mount using the tension of the elastic body. The lighting fixture according to claim 1, wherein a distance from the plate is adjusted. The distance adjusting means is
An elastic body provided between the lens mounting plate and the mounting base;
A taper adjusting rod sandwiched between the moving plate and the mounting base by the tension of the elastic body and tapered in width,
The distance adjusting means is
Changing the width of the tapered adjustment rod by moving the tapered adjustment rod between the moving plate and the mounting base, and adjusting the distance between the mounting base and the moving plate using the tension of the elastic body. The lighting fixture according to claim 1. The distance adjusting means is
An elastic body provided between the lens mounting plate and the mounting base;
A screw base provided on the front surface of the mounting base , provided in a circular shape outside the lens arrangement plate, and a screw base provided with a base-side threaded portion on a circular outer peripheral surface ;
A lid-shaped lid cover body having a lid upper surface portion and a lid side surface, wherein a lid-side threaded portion that engages with a screw-side threaded portion of a screw base provided on the mounting surface is located inside the lid side surface A cover cover body for screwing the base side threaded portion of the screw base and the lid side threaded portion;
The lid cover body is
A lid opening portion is provided in a region corresponding to a plurality of lenses disposed on the lens placement plate in a region of the lid upper surface portion, and one of the lens placement plates is provided in a region other than the lid opening portion in the region of the lid upper surface portion. An overlapping portion that overlaps with the elastic member, and while pushing the lens mounting plate located by the tension of the elastic body with the overlapping portion of the upper surface portion of the lid, the screw side of the screw base and the screw side of the lid cover body The lighting fixture according to claim 1, wherein the distance between the lens arrangement plate and the light emitting surface of the light source arrangement portion is adjusted by screwing together.

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