lighting fixtures

Abstract

The present invention relates to a lighting fixture that can change the light emission direction and can sufficiently illuminate a desired illumination area. [Solution] The device comprises one or more light sources and an illumination lens that transmits light emitted from the light sources, and the light source and illumination lens are configured so that the emission position of the light source and the position of the illumination lens can be changed relatively in a direction intersecting the axial direction of the illumination lens, and by relatively changing the emission position of the light source and the position of the illumination lens, the emission direction of the light emitted from the illumination lens can be changed.

Description

[Technical Field]

[0001] The present invention relates to a lighting fixture. [Background technology]

[0002] Recessed lighting fixtures that are installed by being recessed into an installation location such as a ceiling have been known for some time (see, for example, Patent Document 1). As shown in Fig. 14, in a conventional lighting fixture 200, the emission direction of light emitted from a light source 221 of the lighting fixture main body 220 can be changed by rotating the lighting fixture main body 220 with respect to a frame 210 fixed to the ceiling. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-216157 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in conventional lighting device 200, when light is emitted while lighting device body 220 is rotated, part of the emitted light is reflected by inner circumferential surface 211 of frame body 210 and blocked, as shown in Fig. 14, which causes a problem that the desired illumination area cannot be sufficiently illuminated. Furthermore, conventional lighting device 200 has a problem in that part of the light is reflected by inner circumferential surface 211 in a direction opposite to the direction of illumination that is originally desired, which causes the light to be illuminated in areas other than the area that is originally desired to be illuminated.

[0005] The present invention relates to a lighting fixture that is capable of changing the direction of light emission and sufficiently illuminating a desired illumination area. [Means for solving the problem]

[0006] The lighting device of the present invention comprises one or more light sources and an illumination lens that transmits light emitted from the light sources, and the light source and the illumination lens are configured so that the emission position of the light source and the position of the illumination lens can be changed relatively in a direction intersecting the axial direction of the illumination lens, and by relatively changing the emission position of the light source and the position of the illumination lens, the emission direction of the light emitted from the illumination lens can be changed.

[0007] In the lighting device of the present invention, the light source and the lighting lens may be configured to be relatively movable along a direction intersecting the axial direction of the lighting lens, and the emission direction of light emitted from the lighting lens may be changed by the relative movement of the light source and the lighting lens.

[0008] The lighting device of the present invention may include a frame body capable of holding the lighting lens, and the lighting lens may be configured to be movable radially around the frame body and rotatable relative to the frame body.

[0009] In the lighting device of the present invention, the lighting lens has an incident surface onto which light emitted from the light source is incident and an exit surface from which light incident on the incident surface is emitted, and the incident surface may be formed into a curved surface that curves in a direction away from the exit surface.

[0010] The lighting device according to the present invention may further include a condenser lens disposed between the light source and the illumination lens, for converging the light emitted from the light source.

[0011] In the lighting device of the present invention, the light source and the lighting lens may be configured to be relatively movable along the axial direction of the lighting lens, and the emission range of light emitted from the lighting lens may be changed by the relative movement of the light source and the lighting lens along the axial direction.

[0012] The lighting fixture according to the present invention may be a downlight. [Effects of the Invention]

[0013] According to the lighting fixture of the present invention, it is possible to change the direction of light emission while sufficiently illuminating a desired illumination area. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view schematically illustrating a lighting fixture according to an embodiment of the present invention. [Figure 2] 1 is a perspective view schematically illustrating a lighting fixture according to an embodiment of the present invention. [Figure 3] 1 is a cross-sectional view schematically showing a lighting fixture according to an embodiment of the present invention. [Figure 4] FIG. 2 is a perspective view schematically illustrating a movement mechanism according to the present embodiment. [Figure 5] FIG. 2 is an exploded perspective view schematically showing a movement mechanism according to the present embodiment. [Figure 6] FIG. 10 is a cross-sectional view schematically showing a lighting fixture in which the light is emitted directly downward and the light emission range is wide. [Figure 7] FIG. 10 is a bottom view schematically illustrating a lighting fixture in which the light is emitted directly downward and the light emission range is wide. [Figure 8] 10 is a cross-sectional view schematically illustrating a lighting fixture in which the light emission direction is directly downward and the light emission range is narrow. FIG. [Figure 9] 10 is a cross-sectional view schematically illustrating a lighting fixture in which the light emission direction is diagonally downward to the left and the light emission range is wide. FIG. [Figure 10] FIG. 10 is a bottom view schematically illustrating a lighting fixture in which the light emission direction is diagonally downward to the left and the light emission range is wide. [Figure 11] 10 is a cross-sectional view schematically illustrating a lighting fixture in which the light emission direction is diagonally downward to the left and the light emission range is narrow. FIG. [Figure 12] 10 is a cross-sectional view schematically showing a lighting fixture in which the light emission direction is diagonally downward to the right and the light emission range is wide. FIG. [Figure 13]FIG. 10 is a bottom view schematically illustrating a lighting fixture in which the light emission direction is diagonally downward to the right and the light emission range is wide. [Figure 14] FIG. 1 is a cross-sectional view schematically illustrating a conventional lighting fixture. DETAILED DESCRIPTION OF THE INVENTION

[0015] Preferred embodiments for carrying out the present invention will be described below with reference to the drawings. Note that the following embodiments do not limit the inventions according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention. Furthermore, in the present embodiments, the scale and dimensions of each component may be exaggerated, and some components may be omitted.

[0016] [Overall configuration of lighting fixtures] The lighting fixture according to this embodiment is a recessed lighting fixture, preferably a downlight, that is installed by being recessed into a recessed hole formed in an installation location, such as a ceiling, a wall, a floor, or the ground, but is not limited thereto.

[0017] In this specification, the direction in which the lighting fixture is embedded in the embedding hole is referred to as "upward," and the opposite direction is referred to as "downward." Note that the up-down direction in this specification is not necessarily the up-down direction in actual use.

[0018] As shown in Figures 1 to 3, the lighting device 1 includes a heat sink 10, a light source unit 20 provided below the heat sink 10, a condensing lens 30 provided below the light source unit 20, an illumination lens 40 provided below the condensing lens 30, a movement mechanism 50 that moves the light source unit 20 and the illumination lens 40 relative to each other in a direction intersecting the axial direction of the illumination lens 40, and a frame body 60 that can hold the illumination lens 40.

[0019] [Heat sink configuration] 1 to 3, the heat sink 10 has a plurality of fins 11 arranged along the circumferential direction of the heat sink 10, and is configured to dissipate heat generated in the light source unit 20 to the outside of the lighting device 1. Note that various known configurations can be adopted for the heat sink 10, and therefore detailed description thereof will be omitted.

[0020] [Light source configuration] As shown in FIG. 3 , the light source unit 20 has a substrate 21 and one or more light sources 22 mounted on the substrate 21. The light source unit 20 may be, for example, a COB (Chip On Board) type light source module, but is not limited to this. The substrate 21 is attached to the underside of the heat sink 10, for example, with screws or the like. The light source 22 is a light-emitting element such as an LED. Various known configurations can be employed for the substrate 21 and the light source 22, and detailed description thereof will be omitted. Furthermore, the light source unit 20 is not limited to the above-described configuration, and various known configurations, such as a bullet-type light source module, can be employed.

[0021] [Configuration of condenser lens] 3, the condenser lens 30 is disposed between the light source 22 and the illumination lens 40, and is configured to converge the light emitted from the light source 22. The position of the condenser lens 30 is not particularly limited as long as it is a position where the condenser lens 30 can converge the light emitted from the light source 22. For example, a biconvex lens can be used as the condenser lens 30.

[0022] The collecting lens 30 is disposed at the above-mentioned position by being supported by, for example, a lens support member 70. The lens support member 70 has, for example, a support surface portion 71 having an opening 71a in the radial center portion, and support piece portions 72 extending upward from both radial end portions of the support surface portion 71. The lens support member 70 is configured to support the collecting lens 30 by attaching the upper end portions of the support piece portions 72 to the lower surface of the heat sink 10 in a state in which the collecting lens 30 is placed on the support surface portion 71 so that the collecting lens 30 is exposed from the opening 71a.

[0023] [Lighting lens configuration] 2 and 3, the illumination lens 40 has an incident surface 41 onto which light emitted from the light source 22 is incident, and an exit surface 42 from which the light incident on the incident surface 41 is emitted. The incident surface 41 is formed as a curved surface that curves in a direction away from the exit surface 42. Specifically, the incident surface 41 has a circular outer edge and is formed as a curved surface that curves radially toward the center and upward. The exit surface 42 is formed as a flat, circular surface. A plano-convex lens can be used as this illumination lens 40.

[0024] The illumination lens 40 is configured so as to be coaxial with the axis of the condenser lens 30 when a knob 92 (described later) of the movement mechanism 50 is in a state close to the frame 60 (see FIGS. 3, 6, and 8). Conversely, the illumination lens 40 is configured so as to be non-axial with the axis of the condenser lens 30 when a knob 92 (described later) of the movement mechanism 50 is not in a state close to the frame 60 (FIGS. 9, 11, and 12). Note that "coaxial with the axis of the condenser lens 30" includes both cases where the axes of the condenser lens 30 and the illumination lens 40 are completely aligned and cases where they are approximately aligned.

[0025] In this embodiment, the incident surface 41 is formed in a curved shape, but this is not limited thereto. For example, the incident surface 41 may be formed in a substantially curved shape as a whole, such as a shape having a flat surface and an inclined surface that slopes from the periphery of the flat surface toward the exit surface 42. In addition, in this embodiment, the plano-convex lens is used, but this is not limited thereto. A plano-concave lens may also be used. In this case, it is preferable that the incident surface 41 is formed in a flat shape and the exit surface 42 is formed in a curved shape.

[0026] [Configuration of the movement mechanism] As shown in Figures 2 to 5, the moving mechanism 50 has a first holding member 80 capable of holding the illumination lens 40, a second holding member 90 capable of holding the first holding member 80, and a support member 100 capable of supporting the second holding member 90.

[0027] [First holding member] The first holding member 80 is formed in a tubular shape with both axial ends open, specifically, in a cylindrical shape. The first holding member 80 also has a groove 81 extending along the circumferential direction of the first holding member 80.

[0028] One or more grooves 81 are provided on the circumferential surface of the first holding member 80, and in this embodiment, two are provided on both radial ends. Each groove 81 is formed in a concave shape recessed from the outer surface toward the inner surface of the first holding member 80, and is formed to be inclined in a semi-spiral shape with respect to the circumferential direction of the first holding member 80.

[0029] The first holding member 80 having the above configuration is configured to house the illumination lens 40 therein, thereby holding the illumination lens 40. Furthermore, while held by the second holding member 90, the first holding member 80 is configured to be movable relative to the second holding member 90 along the axial direction of the second holding member 90. Specifically, the first holding member 80 is configured to move up and down while making a half turn relative to the second holding member 90 by causing a screw member N2, described below, to slide (rotate) relatively along the groove portion 81, thereby changing the distance of the illumination lens 40 from the light source 22 and, ultimately, the light emission range (illumination angle).

[0030] In the present embodiment, the first holding member 80 is described as having two grooves 81 formed at an angle with respect to the circumferential direction thereof, but the present invention is not limited to this. For example, three or more grooves 81 may be provided, or one groove 81 formed spirally along the circumferential direction of the first holding member 80 may be provided. Furthermore, the first holding member 80 may be moved linearly relative to the second holding member 90, for example, one or more linear grooves 81 extending along the axial direction of the first holding member 80 may be provided, and the first holding member 80 may simply be moved up and down relative to the second holding member 90 along the linear groove 81.

[0031] [Second holding member] The second retaining member 90 has a cylindrical peripheral wall portion 91, a knob portion 92 provided on the outer surface of the peripheral wall portion 91, a horizontal portion 93 provided above the peripheral wall portion 91 and the knob portion 92, and a hook portion 94 provided above the horizontal portion 93.

[0032] The peripheral wall portion 91 is formed in a cylindrical shape with both axial ends open, and has an inner diameter larger than the outer diameter of the first holding member 80. The knob portion 92 is formed in a piece shape extending from the outer surface of the peripheral wall portion 91 toward the radially outer side of the peripheral wall portion 91. The horizontal portion 93 is formed in a circular shape and is large enough to cover the peripheral wall portion 91 and the knob portion 92 in a top view. The horizontal portion 93 also has a passage opening 93a for passing light emitted from the light source 22. The passage opening 93a is provided in the center of the horizontal portion 93 and is configured to pass light emitted from the light source 22 and deliver it to the illumination lens 40 held by the first holding member 80.

[0033] The hook portion 94 has an insertion portion 94A that can be inserted into an insertion opening 103 (described later) of the support member 100, and an attachment portion 94B that can be attached to the insertion portion 94A. The insertion portion 94A is formed to extend upward from the periphery of the passage opening 93a of the horizontal portion 93. Specifically, the insertion portion 94A has a pair of sliding sides 94a and a pair of locking sides 94b that are arranged side by side in a direction perpendicular to the arrangement direction of the pair of sliding sides 94a, and is formed in a substantially rectangular frame shape as a whole.

[0034] Each sliding edge 94a is formed in a straight line extending in the same direction as the extension direction of the knob portion 92. Furthermore, each sliding edge 94a is configured to be slidable along a sliding edge 103a (described later) of the support member 100 when the hook portion 94 is hooked on the support member 100. Each locking edge 94b is formed to extend from both ends of one sliding edge 94a to both ends of the other sliding edge 94a, and is formed in an arc shape with its center in the extension direction curving in a direction away from each other. Furthermore, each locking edge 94b is configured to lock with a sliding edge 103b (described later) of the support member 100 when the sliding edge 94a slides along the sliding edge 103a.

[0035] The attachment portion 94B is formed in a substantially circular frame shape, and has an outer edge that is larger than the periphery of an insertion opening 103 (described later) of the support member 100. In addition, the attachment portion 94B is configured to be attached to the upper end of the insertion portion 94A by, for example, a screw member N1 or the like when the insertion portion 94A is inserted into the insertion opening 103.

[0036] In this way, the hook portion 94 in this embodiment is configured so that when the insertion portion 94A is inserted into the insertion opening 103, the attachment portion 94B is attached to the insertion portion 94A and abuts against the base portion 101 of the support member 100, which will be described later, so that it can be hooked onto the support member 100.

[0037] In this embodiment, a configuration has been described in which the hook portion 94 is separated into an insertion portion 94A and an attachment portion 94B, but this is not limited to this, and the hook portion 94 may be configured not to be separated into the insertion portion 94A and the attachment portion 94B, for example, a configuration in which the hook portion 94 is formed in a hook shape that can be inserted into the insertion opening 103, or the like.

[0038] The second retaining member 90 having the above-described configuration is configured to hold the first retaining member 80 by inserting a screw member N2 into the screw insertion hole 91a formed in the peripheral wall portion 91 and the groove portion 81 of the first retaining member 80 when the first retaining member 80 is inserted inside the peripheral wall portion 91.

[0039] Furthermore, the second holding member 90, while supported by the support member 100, is configured to be movable in a direction (horizontal direction) perpendicular to the axial direction of the support member 100. Specifically, the second holding member 90 is configured to move in a direction along the extension direction of the knob portion 92 by moving the hook portion 94 along an insertion opening 103 (described later) of the support member 100 (by sliding each sliding edge 94a along a slidable edge 103a (described later) of the support member 100). In other words, the second holding member 90 is configured to move in a radial direction of the frame body 60 (a second frame body 60B (described later)) by moving the knob portion 92 toward or away from the frame body 60.

[0040] In this embodiment, a configuration has been described in which the second retaining member 90 holds the first retaining member 80 with the screw member N2, but this is not limited to this, and for example, the first retaining member 80 may be held by screwing the first retaining member 80 into the second retaining member 90.

[0041] [Supporting member] The support member 100 has a circular base 101, a side portion 102 extending upward from the periphery of the base 101, and an insertion opening 103 provided in the base 101 into which the hook portion 94 of the second holding member 90 can be inserted, and overall is formed in the shape of a bottomed cylinder with an open upper end.

[0042] The periphery of the insertion opening 103 has a pair of sliding edges 103a and a pair of locking edges 103b that face each other in a direction perpendicular to the direction in which the pair of sliding edges 103a face each other. Each sliding edge 103a is formed linearly and has a length longer than each sliding edge 94a of the hook portion 94. The length of each sliding edge 103a can be set appropriately depending on the size of the lighting fixture 1, the size of the lighting lens 40, etc. Each locking edge 103b has the same shape as each locking edge 94b of the hook portion 94. Specifically, each locking edge 103b is formed to extend from both ends of one sliding edge 103a to both ends of the other sliding edge 103a, and the centers in the extension direction are formed in arc shapes that curve in directions that move away from each other.

[0043] The insertion opening 103 is provided eccentrically with respect to the base 101 in the direction along the extension direction of the sliding edge 103a. Specifically, when the support member 100 supports the second holding member 90, the insertion opening 103 is provided eccentrically with respect to the base 101 in the direction opposite to the extension direction of the knob portion 92.

[0044] The support member 100 having the above configuration is configured to support the second holding member 90 by inserting the hook portion 94 of the second holding member 90 into the insertion opening 103 and hooking the hook portion 94 onto the base portion 101 (by abutting the mounting portion 94B against the base portion 101). Specifically, the support member 100 is configured to support the second holding member 90 so that the eccentric direction of the insertion opening 103 is opposite to the extending direction of the knob portion 92 of the second holding member 90. As a result, the illumination lens 40 is coaxial with the axis of the condenser lens 30 when the knob portion 92 is in a state close to the frame body 60, and is nonaxial with the axis of the condenser lens 30 when the knob portion 92 is not in a state close to the frame body 60.

[0045] The support member 100 is configured so as to be insertable into a first frame body 60A (described later) of the frame body 60, and is configured so as to be rotatable with respect to the first frame body 60A in the inserted state.

[0046] [Frame structure] As shown in FIGS. 1 to 3, the frame body 60 has a first frame body 60A provided below the heat sink 10, and a second frame body 60B attached to the first frame body 60A.

[0047] The first frame 60A has a top 61 and a cylindrical body 62 (first body) extending downward from the periphery of the top 61, and is formed as a cylinder with an open bottom end as a whole. The top 61 is formed in a circular shape, and a mounting opening 61a is formed in the center thereof for mounting the light source unit 20 to the underside of the heat sink 10. The body 62 is formed in a cylindrical shape, and has an inner diameter larger than the outer diameter of the support member 100 of the movement mechanism 50. The first frame 60A is configured to be attached to the bottom end of the heat sink 10 by attaching the top 61 to the underside of the heat sink 10 with, for example, screws or the like.

[0048] The second frame body 60B includes a cylindrical body portion 63 (second body portion) attached to the body portion 62 of the first frame body 60A, and an annular flange portion 64 provided at the lower end of the body portion 63. The body portion 63 is formed in a cylindrical shape with both axial ends open. The outer diameter of the upper end of the body portion 63 is formed smaller than the inner diameter of the body portion 62, and the outer diameter of the lower end of the body portion 63 is formed to be approximately the same as the outer diameter of the body portion 62. The body portion 63 also has a spring mounting portion 63a to which a mounting spring 110 for mounting the lighting fixture 1 at an installation location is attached. The spring mounting portion 63a is provided on the outer peripheral surface of the body portion 63, and a plurality of spring mounting portions 63a (three in this embodiment) are provided at intervals around the circumferential direction of the body portion 63. The flange portion 64 is formed in an annular shape extending from the lower end of the body portion 63 toward the radially outer side of the body portion 63. Furthermore, flange portion 64 has an outer diameter larger than the periphery of the embedding hole formed in the installation location, and is configured to abut against the outer surface of the installation location when lighting fixture 1 is installed in the installation location. Second frame body 60B is configured to be attached to first frame body 60A by being fixed with, for example, screw member N3, etc., when the upper end of body 63 is inserted into body 62 of first frame body 60A.

[0049] The frame body 60 having the above configuration is configured to hold the illumination lens 40 and the moving mechanism 50 by clamping the support member 100 of the moving mechanism 50 between the top 61 of the first frame body 60A and the upper end of the body 63 of the second frame body 60B inserted into the first frame body 60A when the support member 100 is inserted inside the first frame body 60A.

[0050] [Operation to change the direction of light emission in a lighting fixture] In the lighting device 1 having the above configuration, the light source 22 and the lighting lens 40 are configured so that the emission position of the light source 22 and the position of the lighting lens 40 can be changed relatively in a direction intersecting the axial direction of the lighting lens 40, and by relatively changing the emission position of the light source 22 and the position of the lighting lens 40, the emission direction of the light emitted from the lighting lens 40 (the irradiation direction of the light) can be changed.

[0051] In this embodiment, the light source 22 and the illumination lens 40 are configured to be relatively movable along a direction intersecting the axial direction of the illumination lens 40, and the emission direction of light emitted from the illumination lens 40 can be changed by the relative movement of the light source 22 and the illumination lens 40. Specifically, the illumination lens 40 is configured to be movable along a direction perpendicular to the axial direction of the illumination lens 40 relative to the light source 22 by the hook portion 94 of the second holding member 90 moving along the insertion opening 103 of the support member 100, and the emission direction of light emitted from the illumination lens 40 can be changed by moving relative to the light source 22.

[0052] Furthermore, the illumination lens 40 is configured to be rotatable relative to the frame body 60, and by rotating relative to the frame body 60, the movement direction of the illumination lens 40 relative to the light source 22 can be changed. Specifically, the illumination lens 40 is configured to be rotatable relative to the frame body 60 by the support member 100 rotating relative to the first frame body 60A of the frame body 60.

[0053] [Operation to change the light emission range of a lighting fixture] In the lighting device 1 having the above configuration, the light source 22 and the lighting lens 40 are configured to be movable relative to each other along the axial direction of the lighting lens 40, and the relative movement of the light source 22 and the lighting lens 40 along the axial direction makes it possible to change the emission range of the light emitted from the lighting lens 40.

[0054] Specifically, the illumination lens 40 is configured to be movable along the axial direction of the illumination lens 40 relative to the light source 22 by the first holding member 80 sliding the screw member N2 relatively along the groove portion 81, and by moving relative to the light source 22, the emission range of the light emitted from the illumination lens 40 (the illumination angle of the light) can be changed.

[0055] [How to use the lighting fixtures] Next, a method of using the lighting fixture 1 according to this embodiment will be described with reference to Figures 6 to 13. In the following description, as an example, the lighting fixture 1 is installed on a ceiling 2. In the following description, as an example, the left direction in Figures 6 to 13 will be referred to as "leftward," and the right direction in Figures 6 to 13 will be referred to as "rightward."

[0056] [Installation of lighting fixtures] First, the user electrically connects the power supply unit (not shown) provided inside the ceiling 2 to the light source unit 20 via the heat sink 10. Next, the user inserts the lighting fixture 1 into the recessed hole 2a in the ceiling 2, as shown in Figures 6, 8, 9, 11, and 12. In this state, the mounting spring 110 and the flange portion 64 clamp the ceiling 2, allowing the lighting fixture 1 to be installed on the ceiling 2.

[0057] [Emission direction: Directly below, Emission range: Wide] When it is desired to change the direction of light emitted from illumination lens 40 to be directly downward and to widen the emission range of light emitted from illumination lens 40, the user moves knob portion 92 of second holding member 90 closer to body portion 63 of second frame 60B (moves it to the right), as shown in FIGS. 6 and 7. Also, as shown in FIG. 6, first holding member 80 is rotated relative to second holding member 90 (sliding screw member N2 relatively along groove portion 81) to move first holding member 80 closer to light source unit 20 (moves it upward). As a result, illumination lens 40 becomes coaxial with the axis of condenser lens 30 and is in close proximity to light source 22 (and condenser lens 30). As shown in FIG. 6, therefore, the emission direction of light emitted from illumination lens 40 becomes directly downward, and the emission range of light emitted from illumination lens 40 is widened.

[0058] [Emission direction: directly below, emission range: narrow] 8, when it is desired to change the direction of light emitted from illumination lens 40 to directly below and narrow the emission range of light emitted from illumination lens 40, the user rotates first holding member 80 relative to second holding member 90 from the state shown in FIGS. 6 and 7 (relatively sliding screw member N2 along groove portion 81) to move first holding member 80 away from light source unit 20 (moving it downward). As a result, illumination lens 40 remains coaxial with the axis of condenser lens 30 and is not in close proximity to light source 22 (and condenser lens 30). Therefore, the direction of light emitted from illumination lens 40 becomes directly below and the emission range of light emitted from illumination lens 40 is narrowed, as shown in FIG.

[0059] [Emission direction: downward left, emission range: wide] 9 and 10, when it is desired to change the emission direction of light emitted from illumination lens 40 to a lower left and widen the emission range of light emitted from illumination lens 40, the user moves knob portion 92 of second holding member 90 away from body portion 63 of second frame body 60B (moves it to the left) from the state shown in FIGS. 6 and 7. As a result, illumination lens 40 becomes eccentric to the left with respect to the axis of condenser lens 30 (because its axis is different from the axis of condenser lens 30) while remaining in close proximity to light source 22 (and condenser lens 30), so that the emission direction of light emitted from illumination lens 40 becomes lower left and the emission range of light emitted from illumination lens 40 becomes wide, as shown in FIG.

[0060] [Emission direction: downward left, emission range: narrow] 11, when it is desired to change the direction of light emitted from illumination lens 40 to the diagonally downward left and narrow the emission range of light emitted from illumination lens 40, the user rotates first holding member 80 relative to second holding member 90 from the state shown in FIGS. 9 and 10 (relatively sliding screw member N2 along groove portion 81) to move first holding member 80 away from light source unit 20 (moving it downward). As a result, illumination lens 40 remains decentered to the left with respect to the axis of condenser lens 30 and is not in close proximity to light source 22 (and condenser lens 30), so that the direction of light emitted from illumination lens 40 is changed to the diagonally downward left and the emission range of light emitted from illumination lens 40 is narrowed, as shown in FIG.

[0061] [Emission direction: downward right, emission range: wide] 12 and 13, when it is desired to change the direction of light emitted from illumination lens 40 to a lower right angle and to widen the emission range of light emitted from illumination lens 40, the user rotates knob portion 92 (support member 100) of second holding member 90 180° relative to first frame body 60A of frame body 60 from the state in FIGS. 9 and 10 (moves knob portion 92 to the right). As a result, illumination lens 40 becomes decentered to the right with respect to the axis of condenser lens 30 while remaining in close proximity to light source 22 (and condenser lens 30), so that the emission direction of light emitted from illumination lens 40 becomes lower right angle and the emission range of light emitted from illumination lens 40 is widened, as shown in FIG.

[0062] The user can set any emission direction (illumination direction) and emission range (illumination angle) by adjusting the movement distance of the illumination lens 40 in the vertical direction, the movement distance of the illumination lens 40 in the horizontal direction, and the rotation angle of the illumination lens 40 relative to the frame body 60.

[0063] In this way, in the lighting device 1 according to this embodiment, the emission direction of light emitted from the lighting lens 40 can be changed by moving the lighting lens 40 in a direction along the extension direction of the knob portion 92, which has the advantage that the user can easily set the emission direction of light (it is easy to recognize intuitively). Furthermore, when the knob portion 92 is in a state close to the frame body 60, the lighting lens 40 is coaxial with the axis of the condenser lens 30, and when the knob portion 92 is not in a state close to the frame body 60, the lighting lens 40 is on a different axis from the axis of the condenser lens 30, which has the advantage that the user can easily set the emission direction of light (it is easy to recognize intuitively).

[0064] [Advantages of the lighting fixture according to this embodiment] As such, the lighting device 1 of this embodiment comprises one or more light sources 22 and an illumination lens 40 that transmits light emitted from the light sources 22, and the light source 22 and the illumination lens 40 are configured so that the emission position of the light source 22 and the position of the illumination lens 40 can be changed relatively in a direction intersecting the axial direction of the illumination lens 40, and by relatively changing the emission position of the light source 22 and the position of the illumination lens 40, the emission direction of the light emitted from the illumination lens 40 can be changed.

[0065] With lighting fixture 1 having such a configuration, when the light emission direction is changed, light source 22 and illumination lens 40 are not tilted with respect to the axial direction of frame body 60, and therefore a portion of the light emitted from illumination lens 40 is not blocked by reflection on the inner surface of frame body 60. Therefore, lighting fixture 1 having the above configuration makes it possible to change the light emission direction while sufficiently illuminating the desired illumination area.

[0066] Furthermore, in conventional lighting fixture 200, as shown in FIG. 14, lighting fixture body 220 rotates relative to frame body 210, which causes the following problems: (1) when changing the light emission direction, heat sinks and the like interfere with the structure above the ceiling, making it difficult to change the light emission direction; (2) the diameter of heat sinks and the like must be small; (3) it is not possible to install it on a sloped ceiling to prevent heat sinks and the like from tipping over; and (4) there is a risk of dust and the like falling through the gap between frame body 210 and lighting fixture body 220.

[0067] In contrast, with the lighting fixture 1 having the above configuration, the light source 22 and the lighting lens 40 are not inclined relative to the axial direction of the frame body 60, so (1) the heat sink 10 and the like do not interfere with the structure behind the installation location, (2) the diameter of the heat sink 10 can be made larger, (3) it can be installed in an installation location with an inclined installation surface, and (4) it is possible to prevent dust and the like from falling.

[0068] In the lighting device 1 according to this embodiment, the light source 22 and the lighting lens 40 are configured to be relatively movable in a direction intersecting the axial direction of the lighting lens 40, and the relative movement between the light source 22 and the lighting lens 40 makes it possible to change the emission direction of light emitted from the lighting lens 40. With the lighting device 1 configured in this way, the emission direction of light can be changed with a simple configuration and operation.

[0069] The lighting fixture 1 according to this embodiment includes a frame 60 capable of holding the lighting lens 40, and the lighting lens 40 is configured to be movable along the radial direction of the frame 60 and to be rotatable relative to the frame 60. With the lighting fixture 1 configured in this way, the lighting lens 40 is rotatable relative to the frame 60, so the light emission direction can be set to any direction.

[0070] In lighting device 1 according to this embodiment, lighting lens 40 has incident surface 41 onto which light emitted from light source 22 enters and exit surface 42 from which the light incident on incident surface 41 exits, and incident surface 41 is formed into a curved surface that curves in a direction away from exit surface 42. With lighting device 1 having this kind of configuration, the exit direction of light can be easily changed simply by changing the position at which light is incident on incident surface 41.

[0071] The lighting fixture 1 according to this embodiment includes a condensing lens 30 that is disposed between the light source 22 and the illumination lens 40 and that converges the light emitted from the light source 22. With a lighting fixture 1 having such a configuration, it is easy to adjust the light emission direction and emission range, and the lighting fixture efficiency can be improved compared to a lighting fixture that does not include the condensing lens 30.

[0072] In the lighting device 1 according to this embodiment, the light source 22 and the lighting lens 40 are configured to be relatively movable along the axial direction of the lighting lens 40, and the relative movement of the light source 22 and the lighting lens 40 along the axial direction makes it possible to change the emission range of the light emitted from the lighting lens 40. With lighting device 1 configured in this way, not only the emission direction of the light but also the emission range of the light can be changed, making it easier for the user to achieve the lighting mode desired.

[0073] [Variations] The lighting fixture according to the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the technical concept of the present invention.

[0074] In the above-described embodiment, the emission direction of the light emitted from the illumination lens 40 is changed by moving the light source 22 and the illumination lens 40 relative to each other. However, this is not limited to this. For example, the emission positions of the multiple light sources 22 may be changed to relatively change the emission positions of the light source 22 and the position of the illumination lens 40, thereby changing the emission direction of the light emitted from the illumination lens 40.

[0075] In the above-described embodiment, the illumination lens 40 is described as being configured to be movable along the radial direction of the frame body 60 and to be rotatable relative to the frame body 60, but this is not limited to this. For example, the illumination lens 40 may be configured to be movable in any of the multiple radial directions of the frame body 60 without rotating relative to the frame body 60.

[0076] In the above-described embodiment, the lighting device 1 has been described as including the condenser lens 30, but the present invention is not limited to this and may not include the condenser lens 30.

[0077] In the above-described embodiment, the lighting device 1 has been described as being capable of changing the emission range of the light emitted from the illumination lens 40, but this is not limited to this, and the emission range of the light emitted from the illumination lens 40 may not be changeable.

[0078] It is clear from the claims that the above-mentioned modifications are included within the scope of the present invention. [Explanation of symbols]

[0079] 1: Lighting equipment 2: Ceiling 2a: Embedded hole 10: Heat sink 11: Finn 20: Light source section 21: Substrate 22:Light source 30: Condenser lens 40: Lighting lens 41:Incidence plane 42: Exit surface 50: Movement mechanism 60: Frame 60A: First frame 60B: Second frame 61:Top 61a: Mounting opening 62: Torso 63: Torso 63a: Spring mounting part 64: Flange part 70: Lens support member 71: Support surface part 71a:Aperture 72: Support piece 80: First holding member 81: Groove 90: Second holding member 91: Peripheral wall part 91a: Screw insertion hole 92: Knob 93:Horizontal part 93a: Passage opening 94: Hook part 94A: Insertion part 94B: Mounting part 94a:Sliding side 94b: Locking edge 100: Support member 101: Base 102: Side 103: Insertion opening 103a:Sliding edge 103b:Locked side 110: Mounting spring

Claims

1. one or more light sources; an illumination lens that transmits light emitted from the light source; Equipped with the light source and the illumination lens are configured so that an emission position of the light source and a position of the illumination lens can be relatively changed in a direction intersecting an axial direction of the illumination lens, The direction of light emitted from the illumination lens can be changed by changing the position of the light source relative to the position of the illumination lens. Lighting fixtures.

2. the light source and the illumination lens are configured to be relatively movable along a direction intersecting an axial direction of the illumination lens, The light source and the illumination lens are configured to be able to change the direction of light emitted from the illumination lens by moving the light source and the illumination lens relative to each other.

10. The lighting fixture of claim 1.

3. a frame body capable of holding the illumination lens, The illumination lens is configured to be movable along the radial direction of the frame body and to be rotatable relative to the frame body.

3. A lighting fixture according to claim 1 or 2.

4. the illumination lens has an incident surface onto which light emitted from the light source is incident and an exit surface from which the light incident on the incident surface exits, The incident surface is formed in a curved shape that curves in a direction away from the exit surface.

3. A lighting fixture according to claim 1 or 2.

5. a condenser lens disposed between the light source and the illumination lens, for converging the light emitted from the light source; 3. A lighting fixture according to claim 1 or 2.

6. the light source and the illumination lens are configured to be relatively movable along an axial direction of the illumination lens, The light source and the illumination lens are configured to be able to change an emission range of light emitted from the illumination lens by moving the light source and the illumination lens relative to each other along the axial direction.

3. A lighting fixture according to claim 1 or 2.

7. It is a downlight 3. A lighting fixture according to claim 1 or 2.

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