JP5491896B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device.

  Conventionally, what is attached to to-be-attached surfaces, such as a wall surface and a ceiling, is known as an illuminating device (for example, refer patent document 1). This type of lighting device includes an instrument main body and a light source accommodated in the instrument main body. The light emitted from this light source is repeatedly reflected between the inner side surfaces of the instrument body, thereby condensing in one direction on the opening side of the instrument body to form a certain irradiation range. The illuminating device illuminates with the light in the fixed irradiation range.

JP 2007-95394 A

  By the way, according to the said illuminating device which has a light source only in the inside of an instrument main body, since the irradiation range will be restrict | limited only to one direction, the area | region which cannot irradiate or an area | region with little light quantity will generate | occur | produce. For this reason, there was a problem that people in the space felt dim.

  In order to solve this problem, it is conceivable that the brightness of the space is improved by increasing the light quantity of the light source. However, if the amount of light from the light source is simply increased, the irradiation range will not be expanded, and even contrary to the demand for energy saving, it cannot be expected to improve the brightness of the space.

  This invention is made | formed in view of the said situation, The place made into the objective is to provide the illuminating device which can improve the brightness feeling of space by extending the irradiation range.

  In order to solve the above problems, the lighting device of the present invention has the following configuration.

In other words, the first invention is characterized in that the first light source is accommodated in the interior of the instrument main body attached to the surface to be attached, and the main illumination section that irradiates light forward, the outer peripheral section of the instrument main body and the second illumination section. A sub-illumination unit having a light source, and the sub-illumination unit includes a translucent prism lens disposed on a path of light emitted from the second light source, whereby the sub-illumination unit The optical axis of the prism lens is configured to go to a position that becomes rearward as it moves away from the sub-illuminator, and the incident surface of the prism lens is formed in a concave curved surface. Is.

The second invention is characterized in that the sub-illumination part provided on the outer peripheral part of the instrument body is provided on a part of the entire circumference of the outer peripheral part.

3rd invention is comprised so that the said auxiliary | assistant illumination part can move along the outer peripheral part of the said instrument main body, It is characterized by the above-mentioned.

The fourth invention is characterized in that the sub-illumination part is a separate member from the instrument body.

According to a fifth aspect of the present invention, in the adapter plate, the sub-illuminating unit covers an opening peripheral edge of the instrument body insertion hole formed in the attached surface, thereby reducing the opening diameter of the instrument body insertion hole. The second light source is attached to the second light source.

The sixth invention is characterized in that the second light source is an LED element.

In a seventh aspect of the invention, the first light source is connected to a socket provided inside the instrument body, and the socket includes a first power feeding unit that feeds power to the first light source, and the first power source. A second power supply unit that supplies power to the second light source, and the second light source is connected to the second power supply unit via a flexible substrate along the inner surface of the instrument body. Features.

  According to the lighting device of the present invention, it is possible to widen the irradiation range and improve the sense of brightness of the space.

It is a partially broken figure of the state which attached the illuminating device of 1st Embodiment which is an example of this invention to the ceiling. It is principal part sectional drawing of a sub-illumination part same as the above. It is a perspective view of a frame member same as the above. (A) is a perspective view of a socket same as the above, (b) is a perspective view of a flexible substrate same as the above. It is a sectional side view of the modification of 1st Embodiment. It is a side view of the state which attached the illuminating device of 2nd Embodiment which is an example of this invention to the ceiling. (A) is principal part sectional drawing of an auxiliary lighting part same as the above, (b) is the perspective view seen from diagonally forward of the frame member same as the above. It is a figure for demonstrating the illuminating device of 3rd Embodiment which is an example of this invention, (a) is principal part sectional side view, (b) is the perspective view seen from diagonally forward of the adapter plate. . It is a figure for demonstrating the illuminating device of 4th Embodiment which is an example of this invention, (a) is a disassembled perspective view which abbreviate | omitted the prism lens, (b) is principal part sectional side view. It is a side view which shows the other example of this invention. It is a side view which shows the other example of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  The lighting device A of the first embodiment is a downlight installed in a state of being embedded in a ceiling 91 as shown in FIG. This illuminating device A has a main illuminating unit 1 and a sub illuminating unit 4, and the illuminating direction (optical axis 70) of the main illuminating unit 1 is directed substantially vertically downward with respect to the ceiling 91. 91 is attached. Hereinafter, for convenience of description, the irradiation direction of the main illumination unit 1 is assumed to be the front, and description will be made based on an installation state attached to the ceiling 91.

  The main illumination unit 1 is a part that performs main illumination by the illumination device A. The main illumination unit 1 includes an instrument main body 11 that is inserted into an insertion hole 92 formed in the ceiling 91 and is embedded and fixed in the ceiling 91, and a first light source 12 accommodated in the instrument main body 11. The optical axis 70 is directed substantially vertically downward.

  The instrument main body 11 reflects and condenses the light emitted from the first light source 12 toward the front irradiation opening 13. The instrument body 11 has a bottomed cylindrical shape with an opening at the front, and the opening is an irradiation opening 13. On the opening edge of the irradiation opening 13, a flange portion 14 protruding outward (side) is provided. The collar portion 14 is positioned at the opening peripheral edge of the insertion hole 92 of the ceiling 91 and below the ceiling 91 in a state where the lighting device A is installed.

  A top plate 15 is fixed to the bottom surface of the instrument body 11. A through hole (not shown) is provided in the bottom surface of the instrument body 11, and the top plate 15 is fixed by a bolt (not shown) and a nut (not shown) inserted through the through hole. . The top plate 15 is provided with respective power supply units 16 and 17 that supply power to the first light source 12 of the main illumination unit 1 and the second light source 41 of the sub illumination unit 4. Each of the power supply units 16 and 17 is electrically connected to the socket 2 for connecting the first light source 12. As shown in FIG. 1, the socket 2 is fixed to the side surface of the instrument body 11 so as to face obliquely forward. The configuration of the socket 2 will be described in detail later.

  A first light source 12 is connected to the socket 2. As the first light source 12, a light emitting element such as an incandescent lamp, a fluorescent lamp, an LED (Light Emitting Diode), or an organic EL is preferably used.

  The sub-illumination unit 4 is directed toward a position that becomes rearward as the optical axis 71 goes sideways, and illuminates the ceiling 91. As shown in FIGS. 1 and 2, the sub-illumination unit 4 includes a second light source 41, a translucent prism lens 42 disposed on a path of light emitted from the second light source 41, and these And a frame member 43 for fixing.

  The frame member 43 is formed of a member different from the instrument main body 11 and is detachably attached to the outer peripheral portion of the instrument main body 11. As shown in FIG. 3, the frame member 43 has an annular shape in plan view, and is detachably attached to the flange portion 14 of the instrument body 11. As shown in FIG. 2, the frame member 43 has a substantially L-shaped cross section, and is integrated with a surface facing the ceiling 91 (hereinafter referred to as a mounted surface facing surface 44) and a mounted surface facing surface 44. And the light source mounting piece 45 thus formed. The mounted surface facing surface 44 has a mounting step portion 46 into which the tip of the collar portion 14 enters an inner edge portion. On the other hand, a mounting tool 47 is mounted on the mounting surface facing surface 44 via a pivot 48, and the mounting tool 47 is rotatable on the mounting surface facing surface 44. The upper surface of the flange portion 14 fitted into the attachment step portion 46 is substantially flush with the attachment surface opposing surface 44 of the frame member 43. In this state, the attachment tool 47 is rotated toward the flange portion 14 side, A member 43 is attached.

  The second light source 41 includes an LED element 411. A plurality of LED elements 411 are mounted on a strip-shaped flexible substrate 412, and are mounted by fixing the flexible substrate 412 to the outer surface of the light source mounting piece 45. The LED elements 411 of the present embodiment have the optical axis facing in the horizontal direction, and are mounted at regular intervals over the entire outer surface of the light source mounting piece 45.

  The second light source 41 is fed with power through the socket 2 as shown in FIG. As shown in FIG. 4, the socket 2 has a cylindrical shape that protrudes inward from the side surface of the instrument main body 11, and the first power supply unit 21 to which the first light source 12 is connected at the center. Is provided. Further, the socket 2 is provided with a second power feeding unit 22 that supplies power to the second light source 41 adjacent to the first power feeding unit 21. The second power feeding unit 22 includes two insertion slits 23 that sandwich and fix a terminal blade 83 provided on the flexible substrate 8. And the 2nd light source 41 is connected with the 2nd electric power feeding part 22 of the said socket 2 via the flexible substrate 8 along the inner surface of the instrument main body 11. FIG. As shown in FIG. 4B, the flexible substrate 8 has a long band shape, and has a socket-side connection portion 81 at one end and a light source-side connection portion 82 at the other end. Yes. The flexible substrate 8 is provided with the above-described terminal blades 83 protruding from the socket-side connection portion 81 and the light source-side connection portion 82, respectively, and a wiring pattern 84 is formed to electrically connect the terminal blades 83 at both ends. Yes.

  As shown in FIG. 2, the prism lens 42 has an exit surface 421 on the outer surface. The emission surface 421 is configured with an inclined surface that refracts light emitted from the second light source 41 toward the ceiling 91 side. A light source housing portion 422 is formed inside the prism lens 42, and the second light source 41 is housed in the light source housing portion 422. The back surface of the light source housing portion 422 is a curved incident surface 423 that covers the light source 41. When the second light source 41 covered with the incident surface 423 emits light, the light enters the incident surface 423 and is refracted by the inclined emission surface 421, most of which is emitted toward the ceiling 91 side. Is done.

  The sub-illumination unit 4 having the above configuration is turned on / off separately from the on / off of the main illumination unit 1 and is independent of the main illumination unit 1. In order to turn on / off the sub-illumination unit 4, a switch provided on a wall or a switch by a remote controller is preferably used.

  When the lighting device A having such a configuration is attached to the ceiling 91 and illumination is performed by the sub-illumination unit 4 separately from the illumination by the main illumination unit 1, the portion that could not be illuminated by the main illumination unit 1 is 4 can be illuminated. That is, according to the illuminating device A of this embodiment, an irradiation range can be expanded compared with the conventional illuminating device A.

  In the illumination device A of the present embodiment, the sub-illumination unit 4 includes the second light source 41 that is different from the first light source 12 that is the light source of the main illumination unit 1. The sub-illumination unit 4 can be caused to emit light in the color of the above, or the sub-illumination unit 4 can be caused to emit light while the main illumination unit 1 is turned off. Thereby, it is also possible to perform effect lighting.

  Moreover, since the optical axis 71 of the sub-illumination unit 4 is directed toward the ceiling 91 as it is separated from the sub-illumination unit 4 to the side, the front surface of the ceiling 91 is illuminated by the light from the sub-illumination unit 4. Thereby, the feeling of brightness of space can be improved. In addition, since it is possible to save power while maintaining a feeling of brightness, it is possible to save energy.

  Furthermore, since the angle of the optical axis 71 of the sub-illumination unit 4 is set by the prism lens 42, it is only necessary to install the prism lens 42 when setting the angle of the optical axis 71, and the setting of the optical axis 71 is easy. it can.

  Further, since the auxiliary illumination unit 4 is a separate member from the instrument main body 11, there is an advantage that the auxiliary illumination unit 4 can be retrofitted using the existing illumination device A.

  Furthermore, since the second light source 41 is formed by the LED element 411, the entire lighting device A can be reduced in size, energy saving, and suppression of heat generation can be achieved.

  Moreover, since the sub illumination part 4 is electrically fed by the flexible substrate 8 as described above, the wiring can be simplified and the labor required for construction can be omitted.

  In addition, although the sub illumination part 4 of this embodiment was provided in the perimeter of the outer peripheral part of the instrument main body 11, the sub illumination part 4 of this invention is the instrument main body 11 like 2nd Embodiment mentioned later. It may be provided in a part of the outer periphery of the. Moreover, although the sub illumination part 4 of this embodiment was being fixed so that it might not move with respect to the instrument main body 11, the sub illumination part 4 of this invention was the instrument main body 11 like 2nd Embodiment mentioned later. The outer peripheral part may be movable.

  Further, as shown in FIG. 5, the adapter 24 for connecting the first light source 12 is connected to the first power supply unit 21 of the socket 2, and then the first light source 12 is connected to the adapter 24. It may be. In this way, the flexible substrate 8 can be sandwiched and installed between the adapter 24 and the socket 2 as shown in FIG. As a result, the flexible substrate 8 can be more stably connected, and the flexible substrate 8 can be prevented from being unexpectedly displaced.

  Next, a second embodiment will be described based on FIGS. Since the present embodiment is mostly the same as the first embodiment, the same portions are denoted by the same reference numerals, description thereof is omitted, and different portions are mainly described.

  The illumination device A of the present embodiment includes the main illumination unit 1 and the sub illumination unit 4 as in the first embodiment, but the optical axis 71 of the sub illumination unit 4 is located on the side from the sub illumination unit 4. This is mainly different from the first embodiment in that it is directed toward the front as it moves away. In the present embodiment, the sub-illumination unit 4 illuminates a vertical wall surface, and the direct illumination by the main illumination unit 1 and the indirect illumination by the sub-illumination unit 4 are switched and used. This will be described in detail below.

  The sub-illumination unit 4 is provided on the outer peripheral portion of the instrument body 11 and includes a second light source 41, a transparent lens cover 49, and a frame member 43 that fixes them. Further, the sub-illumination unit 4 is provided on a part of the entire circumference in the circumferential direction of the outer peripheral part of the instrument body 11.

  The frame member 43 is configured as a separate member from the instrument main body 11, and is detachably attached to the collar portion 14 of the instrument main body 11, and is configured to be movable along the outer peripheral portion of the instrument main body 11. As shown in FIG. 7, the frame member 43 has an annular shape in plan view, and includes a mounted surface facing surface 44 and a light source mounting piece 45 extending downward from the mounted surface facing surface 44. Have. An inner projecting piece 50 projecting inward is provided on the inner peripheral edge of the mounting surface facing surface 44, and the inner projecting piece 50 overlaps the flange portion 14 in the vertical direction. An annular protrusion 51 is provided on the inner protruding piece 50 toward the flange 14 side (downward), and the protrusion 51 is provided in an annular shape on the upper surface of the flange 14 of the instrument body 11. The groove 18 is slidably fitted into the concave groove 18. Thereby, the sub-illumination unit 4 can rotate around the center of the irradiation opening 13 along the outer periphery of the irradiation opening 13 of the instrument body 11. In the illuminating device A of the present embodiment, the inner protruding piece 50, the protrusion 51, and the recessed groove portion 18 constitute a rotation mechanism portion.

  As shown in FIG. 7B, the light source mounting piece 45 of the frame member 43 is formed in a substantially half-circumferential portion of the annular mounting surface facing surface 44, and is positioned closer to the center of the frame member 43 as it goes downward. Inclined to do. A flexible substrate 412 on which a plurality of LED elements 411 (second light sources 41) are mounted is fixed to the light source attachment piece 45, and a transparent lens cover 49 is attached from the outside. Since the light source mounting piece 45 is inclined, the optical axis 71 of the second light source 41 is directed to a position that becomes more forward as it moves away from the second light source 41 to the side.

  In addition, as shown in FIG. 7A, the power supply to the second light source 41 in the present embodiment is performed through a through hole 441 provided in the mounted surface facing surface 44. As shown in FIG. 6, the wiring passes from the power feeding portion 17 provided on the top plate 15 to the outer side / through hole 441 of the instrument main body 11.

  When the lighting device A having such a configuration is attached to an end portion in the vicinity of the wall surface of the ceiling 91, the main illumination unit 1 can perform direct illumination while the sub illumination unit 4 can perform indirect illumination that illuminates the wall surface.

  In addition, since the sub-illumination unit 4 is provided only on a part of the entire circumference of the outer peripheral portion, the sub-illumination unit 4 is opposed to the wall surface, and the portion where the sub-illumination unit 4 is not provided is located at the center of the room. You can face to the side. According to this lighting device A, it is possible to prevent direct illumination of the light in the sub-illuminating unit 4 to a person in the room while performing indirect illumination for illuminating the wall surface, and it is possible to prevent glare due to direct viewing of the lamp.

  Moreover, according to the illuminating device A of this embodiment, appropriate illumination without waste can be performed before and at bedtime. For example, the illumination by the main illumination unit 1 is turned on and the sub illumination unit 4 is turned off before going to bed, and the illumination by the main illumination unit 1 is turned off and the indirect illumination by the sub illumination unit 4 can be switched to sleep. Conceivable.

  In addition, the illumination device A of the present embodiment is configured such that the sub-illumination unit 4 is movable along the outer peripheral portion of the instrument body 11, and therefore easily adjusts and sets the illumination direction of illumination by the sub-illumination unit 4. be able to.

  Note that the direction of the optical axis 71 of the sub-illumination unit 4 of the present embodiment is formed by inclining the light source mounting piece 45. However, as in the first embodiment, the translucent prism lens 42 is used. It may be used.

  Next, a third embodiment will be described with reference to FIG. Since the present embodiment is mostly the same as the first embodiment, the same portions are denoted by the same reference numerals, description thereof is omitted, and different portions are mainly described.

  The illuminating device A of the present embodiment includes the main illuminating unit 1 and the sub illuminating unit 4 as in the first embodiment, but the sub illuminating unit 4 is mounted on the adapter plate 6 attached to the ceiling 91. It is different from the first embodiment in that it is configured.

  The sub-illumination unit 4 includes a second light source 41, a translucent prism lens 42 disposed on a path of light emitted from the second light source 41, and a frame member 43 that fixes them. The frame member 43 is constituted by the adapter plate 6. The adapter plate 6 (renewal plate) is configured to reduce the opening diameter of the insertion hole 92 by covering the opening periphery of the insertion hole 92 for inserting the instrument main body 11 provided on the ceiling 91. As shown in FIG. 8B, the adapter plate 6 includes a lid body portion 61 and an attachment frame portion 62. The lid 61 has an annular shape in plan view, and has an outer diameter larger than the insertion hole 92 provided in the ceiling 91, and the diameter of the central opening 63 provided in the center is the insertion hole. The diameter is smaller than 92. This central opening 63 becomes a new insertion hole of the instrument body 11. The lid 61 is provided with a light source mounting piece 45 protruding so as to surround the outer periphery of the central opening 63. The light source mounting piece 45 is connected to the second light source 41 in the same manner as in the first embodiment. A translucent prism lens 42 is attached. A mounting frame portion 62 is fixedly provided on the rear surface side of the lid body portion 61, and a locking claw 64 that is locked to the rear surface of the ceiling 91 is provided on the mounting frame portion 62. The locking claw 64 is provided so as to be able to protrude and retract laterally, and is biased by a spring in the protruding direction. The locking claw 64 is inserted into the insertion hole 92 of the ceiling 91 from below and inserted into the insertion hole 92. The locking claw 64 can be inserted into the insertion hole 92, and can be protruded and locked when the insertion continues beyond a predetermined position. It becomes a state.

  A power supply unit 17 for supplying power to the second light source 41 is provided on the rear surface of the ceiling 91. The power supply unit 17 and the second light source 41 are connected via electric wiring. The electrical wiring is arranged so as to pass through the wiring hole 65 provided in the adapter plate 6.

  The instrument main body 11 is inserted through the central opening 63 of the adapter plate 6 and attached with the flange 14 of the instrument main body 11 in contact with the front peripheral edge of the central opening 63.

  As described above, in the illumination device A of the present embodiment, the sub illumination unit 4 is configured by the adapter plate 6, and the other parts are the same as the conventional configuration, so that the existing illumination device A can be used. In addition, since the sub-illumination unit 4 can be installed by the conventional method of installing the adapter plate 6, its installation is also easy.

  Next, a fourth embodiment will be described based on FIG. Since the present embodiment is mostly the same as the first embodiment, the same portions are denoted by the same reference numerals, description thereof is omitted, and different portions are mainly described.

  Illumination device A of the present embodiment is an example in which sub-illumination unit 4 is configured as a separate member from instrument body 11. Although the sub illumination part 4 of 1st Embodiment was attached to the instrument main body 11, the sub illumination part 4 of this embodiment differs in the point attached directly to the ceiling.

  The frame member 43 of the sub-illumination unit 4 of the present embodiment is attached to the ceiling 91 with screws B, as shown in FIG. A connector 66 is provided on the rear surface of the frame member 43, and this connector 66 is electrically connected to the LED element 411 (second light source 41) of the sub illumination unit 4.

  A power supply unit (not shown; see FIG. 8) for supplying power to the second light source 41 is provided on the rear surface of the ceiling 91, and wiring connected to the power supply unit and the connector are provided on the ceiling 91. A wiring insertion hole 93 for passing 66 is provided. And the wiring connected to this power supply part is pulled out from this wiring penetration hole 93.

  The sub illumination part 4 of this embodiment is attached as follows. The frame member 43 to which the prism lens 42 is attached is connected to the wiring drawn out from the wiring insertion hole 93. In this state, the frame member 43 is brought into contact with the ceiling 91 and fixed to the ceiling 91 with screws B. At this time, the connector 66 is accommodated in the wiring insertion hole 93.

  Although not particularly illustrated, in the third embodiment and the fourth embodiment, the light source mounting piece 45 may be configured to be movable around the central opening 63. Further, as in the second embodiment, it is naturally possible to omit the prism lens 42 by inclining the light source mounting piece 45 forward or backward.

  As mentioned above, although the illuminating device A of this invention was demonstrated based on 1st Embodiment thru | or 4th Embodiment, the illuminating device A of this invention is not restricted to the ceiling 91, A vertical wall surface, the ceiling 91, It can also be mounted on the mounted surface 9 such as an inclined wall surface between the vertical wall.

  Moreover, although all the illuminating devices A of embodiment mentioned above were downlights, the illuminating device A of this invention is an illuminating device A which used the down ceiling as the main illumination part 1 as shown in FIG. Alternatively, as shown in FIG. 11, the sub-illumination unit 4 may be attached to a fluorescent lamp frame.

DESCRIPTION OF SYMBOLS 1 Main illumination part 11 Appliance main body 12 1st light source 2 Socket 21 1st electric power feeding part 22 2nd electric power feeding part 4 Subillumination part 41 2nd light source 411 LED element 42 Prism lens 6 Adapter plate 70 Light of main illumination part Axis 71 Optical axis of sub-illumination unit 8 Flexible substrate 9 Attached surface A Lighting device

Claims (7)

A main illumination unit that houses the first light source inside the instrument body attached to the surface to be attached and irradiates light forward;
A sub-illumination part provided on the outer peripheral part of the instrument body and having a second light source,
The sub-illumination unit includes a translucent prism lens disposed on a path of light emitted from the second light source, whereby the optical axis of the sub-illumination unit is changed from the sub-illumination unit. It is configured to go to a position that becomes the rear as it moves away from the side,
An illumination device, wherein an incident surface of the prism lens is formed in a concave curved surface .   The lighting device according to claim 1, wherein the sub-illumination unit provided on the outer peripheral portion of the fixture main body is provided on a part of the entire circumference of the outer peripheral portion.   The lighting device according to claim 1, wherein the sub-illumination unit is configured to be movable along an outer peripheral portion of the instrument main body.   The lighting device according to any one of claims 1 to 3, wherein the sub-illumination unit is a separate member from the instrument main body.   The sub-illumination unit is configured such that the second light source is provided on an adapter plate that reduces an opening diameter of the instrument body insertion hole by covering an opening periphery of the instrument body insertion hole formed in the attachment surface. The illuminating device of Claim 4 comprised by being attached.   The lighting device according to any one of claims 1 to 5, wherein the second light source is an LED element.   The first light source is connected to a socket provided inside the instrument body;
The socket includes a first power feeding unit that feeds power to the first light source, and a second power feeding unit that feeds power to the second light source,
The lighting device according to any one of claims 1 to 6, wherein the second light source is connected to the second power feeding unit via a flexible substrate along an inner surface of the instrument body.

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