JP2013080680A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device capable of increasing additional value as the lighting device by suppressing glare, designing light, and enhancing a production effect.SOLUTION: The lighting device is equipped with a light source part 2 having a light-emitting element 22 as a light source, a light transmission control part 72 to which light is irradiated from the light source part 2 and which is formed so that a region 72a of which transmittance of light is relatively small and a region 72b of which transmittance of light is relatively large exist together, and an optical component 71 which is installed corresponding to the light transmission control part 72 and is made of a polyhedron.

Description

  Embodiments described herein relate generally to a lighting device using a light emitting element such as a light emitting diode (hereinafter referred to as LED) as a light source.

  Recently, along with higher output and higher efficiency of LEDs, lighting devices that use LEDs as light sources and can be used indoors or outdoors can be expected. This illuminating device is obtained by mounting a plurality of LEDs on a substrate so as to obtain a predetermined brightness, and is used as, for example, a ceiling light for a general house attached to a ceiling surface or the like.

  In such an illuminating device, since the brightness of the LED as a light source is high and the directivity of emitted light is strong, the diffuser (sade) ) Is arranged.

JP 2009-117160 A

  However, with the diversification of lifestyles, the functions required of these lighting devices are not only to illuminate the surroundings brightly, but also to design light to enhance the production effect and increase the added value as a lighting device. Is desired.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an illuminating device that can enhance glare and enhance the effect, and increase the added value as an illuminating device.

  The illuminating device by embodiment of this invention is provided with the light source part which uses a light emitting element as a light source. In addition, a light transmission control unit formed so that light is irradiated from the light source unit and a region where the light transmittance is relatively small and a region where the light transmittance is relatively large coexist, and the light transmission And an optical component made of a polyhedron provided corresponding to the control unit.

  According to the embodiment of the present invention, it is possible to provide an illuminating device that can suppress glare, enhance the effect, and increase the added value as an illuminating device.

It is a perspective view which shows the illuminating device which concerns on embodiment of this invention. In the same illuminating device, it is a top view which shows a shade and a light source part cover removed. It is a perspective view of the back side which shows the illuminating device. It is sectional drawing which shows the state which attached the lighting device to the ceiling surface. It is sectional drawing which expands and shows the A section in FIG. It is a perspective view which shows a shade and a shade makeup | decoration frame.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6. In each drawing, the wiring connection relationship using lead wires or the like is omitted. In addition, the same code | symbol is attached | subjected to the same part and the overlapping description is abbreviate | omitted.

  The illuminating device of this embodiment is for a general house that is used by being attached to a hanging sealing body as a wiring device installed on the device mounting surface, and has a plurality of light emitting elements mounted on a substrate. The room is illuminated by light emitted from the section.

  The lighting device includes a device main body 1, a light source unit 2, a lighting device 3, a center member 4, and an attachment unit 5. Furthermore, the lighting device includes an optical sensor 6, a shade 7, a cover member 8, an indirect light source unit 9, and an auxiliary component unit 10. Moreover, the adapter A (refer FIG. 4) and infrared remote control transmitter Rc electrically and mechanically connected to the hooking sealing body Cb installed in the ceiling surface C as an apparatus attachment surface are provided. Such an illuminating device is formed in a round and circular appearance, and has a front side as a light irradiation surface and a back side as a mounting surface to the ceiling surface C. These components will be described sequentially.

  As shown in FIGS. 2 to 4, the apparatus main body 1 is a chassis having a thermal conductivity formed in a circular shape from a flat plate of a metal material such as a cold-rolled steel plate, and a mounting portion described later at a substantially central portion. A circular opening 11 in which 5 is disposed is formed.

  On the outer peripheral side of the opening 11, a projecting portion 12 having a quadrangular shape with a corner portion having an R shape and projecting to the back side is formed. Further, on the outer peripheral side of the apparatus main body 1, a circular annular protruding portion 13 that protrudes on the back side, in other words, forms a concave portion on the front side, is formed.

  In the recess formed by the protruding portion 13, a shade receiving bracket 75 to which the shade 7 is detachably attached is disposed. These protrusions 12 and 13 mainly function as attachment portions of members attached to the chassis, and also have a function of reinforcing the strength of the chassis and a function of increasing the heat radiation area.

  The apparatus main body 1 corresponds to a chassis in this embodiment, but may be referred to as a case, a reflector, or a base. In general, it means a member or a part where the light source unit 2 is directly or indirectly arranged, and is not interpreted in a particularly limited manner.

  As shown in FIGS. 2 and 4, the light source unit 2 includes a substrate 21 and a plurality of light emitting elements 22 mounted on the substrate 21. The substrate 21 has a substantially circular arc shape with a predetermined width dimension, and is arranged so that a plurality of, specifically, four substrates 21 having the same shape are joined together. It is formed in a circle shape. That is, the substrate 21 formed in a substantially circle shape as a whole is composed of four divided substrates 21.

By using the substrate 21 thus divided, it is possible to suppress the deformation of the substrate 21 by absorbing thermal contraction at the divided portion of the substrate 21. In addition, the material of the substrate member can be efficiently taken, which is advantageous in terms of cost, and the member is downsized, so that the handling becomes easy. Furthermore, the divided substrate 21 can be shared as a component.
In addition, although it is preferable to use the board | substrate 21 divided | segmented into plurality, you may make it use the board | substrate of 1 sheet integrally formed in the substantially circle shape.

  The board | substrate 21 consists of a flat plate of glass epoxy resin (FR-4) which is an insulating material, and the wiring pattern layer is formed with the copper foil on the surface side. The light emitting element 22 is electrically connected to the wiring pattern layer. Further, a white resist layer acting as a reflective layer is formed on the wiring pattern layer, that is, on the surface of the substrate 21.

  The material of the substrate 21 can be a ceramic material or a synthetic resin material when an insulating material is used. Furthermore, when it is made of metal, a metal base substrate in which an insulating layer is laminated on one surface of a base plate having good thermal conductivity such as aluminum and excellent heat dissipation can be applied.

  The light emitting element 22 is an LED, which is a surface mount type LED package. A plurality of LED packages are mounted in a plurality of rows along the circumferential direction of the circle-shaped substrate 21, in the present embodiment, in three rows on the circumference of substantially concentric circles having different radii. That is, it is mounted over the inner circumferential row, the outer circumferential row, and an intermediate row between the inner circumferential row and the outer circumferential row.

  The LED package is roughly composed of an LED chip disposed in a cavity formed of ceramics or synthetic resin, and a translucent resin for molding such as epoxy resin or silicone resin that seals the LED chip. It is configured.

  The LED packages mounted on the inner and outer rows are light bulb colors (L) and daylight colors (D), so-called white ones are used. These are arranged alternately on the circumference of substantially concentric circles at substantially equal intervals. The LED chip is an LED chip that emits blue light. In the translucent resin, a phosphor is mixed, and in order to be able to emit white light of light bulb color (L) and daylight color (D), the light-transmitting resin has a complementary color relationship mainly with blue light. Yellow phosphors that emit yellow light and red phosphors are used to supplement reddish components. The so-called white includes daylight color (D), daylight white (N), white (W), light bulb color (L), and the like.

  The LED packages mounted in the middle row use a plurality of light emission colors, specifically, those that emit light in red (R), green (G), and blue (B). Accordingly, the LED chips are LED chips that emit red, green, and blue light, respectively, and these LED chips are sealed with a translucent resin for molding.

  The LED packages that emit light in red (R), green (G), and blue (B) mounted in the middle row are sequentially red, red (R), green (G), and blue (B) in a substantially circular manner. Are arranged at regular intervals.

  As described above, the light source unit 2 emits a plurality of light emitting elements 22 having different emission colors, that is, light bulb colors (L), daylight colors (D), red (R), green (G), and blue (B). Since the light emitting element 22 is disposed, the range of light colors that can be expressed by mixing these is wide, and the light color can be adjusted by adjusting the light output of the light emitting element 22. Become.

  In addition, LED may be made to mount an LED chip directly on the board | substrate 21, and you may make it mount a bullet-type LED, and a mounting system and a format are not exceptionally limited.

  In the light source unit 2 configured in this way, the substrate 21 is located on the front side of the apparatus main body 1 and around the opening 11, and the mounting surface of the light emitting element 22 is directed to the front side, that is, the lower irradiation direction. Arranged. Further, the substrate 21 is attached by a fixing means such as a screw so that the back surface side of the substrate 21 is in close contact with the inner surface side of the apparatus main body 1. Therefore, the substrate 21 is thermally coupled to the apparatus main body 1, and heat from the substrate 21 is conducted from the back side to the apparatus main body 1 to be radiated.

  As shown in FIG. 4, a light source unit cover 25 is disposed on the front side of the light source unit 2. The light source cover 25 is made of, for example, a transparent synthetic resin having an insulating property such as polycarbonate or acrylic resin, and is integrally formed in a substantially circle shape along the arrangement of the light emitting elements 22, and includes the light emitting elements 22. Are arranged so as to cover the entire surface of the substrate 21.

  Therefore, the light emitted from the light emitting element 22 passes through the light source unit cover 25. Further, since the entire surface of the substrate 21 is covered, the charging unit is covered with the light source unit cover 25 to ensure insulation.

  As shown in FIG. 4, the lighting device 3 includes a circuit board and circuit components such as a control IC, a transformer, and a capacitor mounted on the circuit board. The circuit board is formed in a plate shape so as to surround the center portion, and circuit components are mounted on the surface side thereof.

  The circuit board is electrically connected to the adapter A side, and is connected to a commercial AC power source via the adapter A. Therefore, the lighting device 3 receives this AC power supply, generates a DC output, supplies the DC output to the light emitting element 22 via the lead wire, and controls the lighting of the light emitting element 22.

  Such a lighting device 3 is attached to and covered with the lighting device cover 35 and disposed on the back side of the device main body 1 as shown in FIG. In this case, the circuit board is attached with the circuit components facing the front side (the lower side in the drawing).

The lighting device cover 35 is formed in a substantially rectangular short cylinder shape by a metal material such as a cold rolled steel plate, and the side wall 35a is inclined so as to expand toward the front surface side. An opening 35c is formed at the center.
The lighting device cover 35 is mounted with a front flange mounted on the protruding portion 12 of the chassis and screwed.

  An elastic member 36 is attached to the back side of the lighting device cover 35. The elastic member 36 is attached to correspond to the corner portion of the lighting device cover 35, and the tip side is directed toward the central portion.

  The elastic member 36 is a member disposed so as to be interposed with elastic deformation between the lighting device and the ceiling surface C in a state where the lighting device is attached to the ceiling surface C as the device mounting surface. It acts to securely hold the ceiling surface C.

  As shown in FIG. 4, the center member 4 is made of a synthetic resin material such as PBT resin, is formed in a substantially short cylindrical shape, and has an opening 41 facing the ceiling sealing body Cb at the center. Yes. An annular space 42 is formed around the opening 41, and the optical sensor 6 described later is disposed in the space 42. Further, a light receiving window 43 that faces the light receiving portion of the optical sensor 6 is formed on the front wall of the center member 4.

  The center member 4 configured as described above is attached to the chassis with the flange on the back side screwed to the chassis via the light source unit cover 25. The center member 4 can be directly or indirectly attached to the chassis, and its specific attachment configuration is not limited.

  The attachment portion 5 is an adapter guide, a member through which the adapter A is inserted and engaged, and a member for attaching the lighting device to the ceiling surface C. As shown in FIG. 4, the adapter guide is formed in a substantially cylindrical shape, and an engagement port 51 through which the adapter A is inserted and engaged is provided at the center. The adapter guide is disposed corresponding to the opening 11 formed in the central portion of the main body 1.

  Note that the attachment portion 5 is not necessarily a member referred to as an adapter guide or the like. For example, it may be an opening formed in the apparatus main body 1 or the like, and in essence, it means a member or part that is opposed to the hooking sealing body Cb as a wiring device and to which the adapter A is engaged.

  As shown in FIG. 4, the optical sensor 6 is mounted on a substrate 61 and is disposed and attached in the space portion 42 of the center member 4 so that the light receiving portion thereof faces the light receiving window 43. The optical sensor 6 is an illuminance sensor, and includes a sensor element such as a photodiode, and operates to detect ambient brightness and output a detection signal. Thereby, when the surroundings are bright, the light source unit 2, that is, the light emitting element 22 is controlled to be dimmed (dimmed) and lit.

  As shown in FIGS. 4 to 6, the seed 7 is formed in a substantially circular shape from a light-transmitting material such as an acrylic resin, and a circular opening 71 is formed in the central portion. Yes. A shade decorative frame 7a is attached to the outer periphery of the shade 7, and the shade decorative frame 7a is formed of a transparent material made of acrylic resin or the like.

  The shade 7 is detachably attached to the outer peripheral edge of the apparatus main body 1 so as to cover the front side of the apparatus main body 1 including the light source unit 2. Specifically, by rotating the shade 7, the shade mounting bracket 74 provided on the shade 7 is engaged with the shade receiving bracket 75 provided in the recess formed by the protruding portion 13 of the apparatus body 1. Can be installed.

  Further, when removing the shade 7, it can be removed by rotating the shade 7 in the direction opposite to that at the time of attachment and releasing the engagement between the shade attachment fitting 74 and the shade receiving fitting 75.

  A light transmission control unit 72 is formed on the outer periphery of the shade 7. The light transmission control unit 72 is configured to include a region 72a having a relatively small light transmittance and a region 72b having a relatively large light transmittance.

Specifically, the light transmission control unit 72 is formed by silk printing on the inner surface side of the shade 7, and is a region where the light transmittance is relatively large in a region 72 a where the light transmittance is relatively small. A large number of 72b are formed. The region 72a having a relatively small light transmittance is, for example, a portion to which white ink is applied, and the region 72b having a relatively large light transmittance is a portion to which no white ink is applied. In addition, this portion is formed so that a large number (infinite number) of small circular shapes are scattered in an area where white ink is applied.
That is, white ink is applied and printed on the inner surface side of the shade 7 while leaving many small circular portions.

  Therefore, the light irradiated to the region 72a having a relatively small light transmittance is suppressed, and the region 72b having a relatively large light transmittance, that is, a large number of small circular portions is irradiated. The transmitted light is favorably transmitted.

Here, the light transmittance is relatively small and large means a relative relationship between the region 72a and the region 72b. For example, the region 72a having a relatively small light transmittance is a predetermined value. It may be formed with transmittance or may be formed substantially impermeable so that it is hardly transmitted.
In addition, parts other than the light transmission control part 72 in the shade 7 have translucency, are milky white, and are provided with diffusibility.

  Incidentally, in forming such shade 7, silk printing is performed so that a large number of small circular portions (portions where ink is not applied) are formed on the back side of a sheet of acrylic resin or the like as the material, Thereafter, it is manufactured by pressure forming into a substantially circular predetermined shape.

  Further, the region 72a having a relatively small light transmittance and the region 72b having a relatively large light transmittance may be formed in a reverse relationship. In other words, a large number of small circular portions may be formed as regions where the light transmittance is relatively small. In this case, the diameter of the small circular shape may be appropriately set according to the design.

  Furthermore, the region 72b having a relatively high light transmittance can be formed by a small hole penetrating the inside and outside of the shade 7. Also in this case, it is possible to form a region having a relatively small light transmittance and a region having a relatively large light transmittance.

  As described above, various configurations can be adopted as the configuration in which the region 72a having a relatively small light transmittance and the region 72b having a relatively large light transmittance are mixed. It is not limited to a particular configuration.

  Next, the shade decorative frame 7a is formed in a substantially ring shape and a L-shaped cross section by a transparent material made of acrylic resin or the like. The shade decorative frame 7 a is disposed on the outer side corresponding to the light transmission control unit 72 formed on the outer periphery of the shade 7. The shade decorative frame 7a has a prism function as an optical component, and is formed into a polyhedron by forming an uneven portion 71a having a triangular cross section inside the front side wall. As representatively shown in FIG. 6, the uneven portions 71 a are formed on the inside of the front side wall so as to form a plurality of stripes on the circumferences having different radii.

  The cover member 8 is formed in a circular shape from a material such as a transparent acrylic resin. The cover member 8 corresponds to the opening 71 of the shade 7, is attached to the front wall of the center member 4, and is disposed so as to cover and close the opening 41 of the center member 4. The cover member 8 is formed with a transmission portion 81 that faces the light receiving window 43 of the optical sensor 6. In addition, it is desirable to stick an opaque film material or the like on the front surface side of the cover member 8 leaving at least the transmission part 81.

The indirect light source unit 9 is disposed on the back side of the apparatus main body 1 and mainly has a function of illuminating the ceiling surface brightly. As shown in FIGS. 3 and 4, a plurality of indirect light source units 9 are arranged around the mounting unit 5, and a substrate 91 and a plurality of light emitting elements 92 mounted on the substrate 91 are disposed. And.
The substrate 91 is formed in a substantially rectangular flat plate, and the light emitting elements 92 are mounted in a line along the longitudinal direction of the substrate 91.

  Substrates 91 on which the light emitting elements 92 are mounted are attached to four locations on the side wall 35 a of the lighting device cover 35. In this case, the lighting device cover 35 is formed in a substantially square shape, and the substrate 91 is attached to the linear flat surface of the side wall 35a, so that the attachment is stably performed.

  Further, since the side wall 35a that forms the mounting portion of the substrate 91 is formed in an inclined shape that expands toward the front side, the substrate 91 is directed obliquely upward, that is, in the ceiling surface direction, and the light emitting element The light emitted from 92 is effectively irradiated toward the ceiling surface direction.

  Furthermore, each indirect light source unit 9 is covered with a translucent cover 93 formed in an inclined shape such that its cross section expands toward the back side. For this reason, when the lighting device is attached to the ceiling surface C and the side portion of the lighting device is viewed from below, it is possible to make it difficult to visually recognize the elastic member 36 attached to the back side of the lighting device cover 35. Become.

  Further, the cover 93 is formed and disposed in an inclined manner so that the back side of the substrate 21 does not cover the corresponding part of the apparatus body 1 from the outside. Therefore, it is possible to suppress the heat dissipation action from the apparatus main body 1 from being inhibited.

  The light emitting element 92 is an LED, like the light source unit 2, and is a surface mount type LED package, and the light emitting color is a light bulb color (L). The light emitting element 92 has the same specifications as the light emitting element 22 that emits light of the light bulb color (L) of the light source unit 2. The light emitting element 92 is connected to the lighting device 3 and is controlled to be turned on.

  As shown in FIGS. 2 and 4, the auxiliary component unit 10 includes a unit substrate 101 and a plurality of electrical auxiliary components mounted on the substrate 101. The electrical auxiliary components in this embodiment are an infrared remote control signal receiving unit 102, a night light emitting element 103, a channel setting switch 104, and the like. The auxiliary component unit 10 is disposed on the front side of the apparatus main body 1 and inside the light source unit 2.

  As shown in FIG. 4, the adapter A is electrically and mechanically connected to a hooking sealing body Cb installed on the ceiling surface C by a hooking blade provided on the upper surface side, and has a substantially cylindrical shape. A pair of locking portions A1 are provided on both sides of the peripheral wall so as to always protrude to the outer peripheral side by a built-in spring. The locking portion A1 is immersed by operating a lever provided on the lower surface side. Further, a power cord (not shown) connected to the lighting device 3 is led out from the adapter A, and is connected to the lighting device 3 via a connector.

  The infrared remote control transmitter Rc transmits, for example, a specific coded infrared remote control signal in the form of a pulse having a frequency of 38 kHz. For example, a mode switching button, an all-light button, a dimming button, a nightlight button, An off button is provided. By operating the remote control transmitter Rc toward the auxiliary component unit 10, that is, the infrared remote control signal receiving unit 102, the illumination state of the light source unit 2 and the indirect light source unit 9 can be controlled.

Next, the attachment state to the ceiling surface C of an illuminating device is demonstrated with reference to FIG. First, the adapter A is electrically and mechanically connected to the hanging sealing body Cb installed on the ceiling surface C in advance. With the cover member 8 of the illuminating device removed, the apparatus main body 1 is held until the engaging portion 51 of the adapter A is securely engaged with the engaging port 51 of the adapter guide while the engaging port 51 of the adapter guide is aligned with the adapter A. The mounting operation is performed by pushing up the elastic member 36 manually from below against the elastic force of the elastic member 36.
Next, the cover member 8 is attached, and the cover member 8 is closed and covered with the opening 41 in the center portion of the center member 4 facing the hooking sealing body Cb.

  Further, when removing the lighting device, the cover member 8 is removed, and the lever provided on the adapter A is operated through the opening 41 of the center member 4 to disengage the engaging portion A1 of the adapter A to remove it. be able to.

  When power is supplied to the lighting device 3 in a state where the lighting device is attached to the ceiling surface C, the light emitting elements 22 are energized through the substrate 21 in the light source unit 2, and each light emitting element 22 is lit. The light emitted from the light emitting element 22 to the front side is transmitted through the light source cover 25, diffused by the shade 7, and transmitted to be emitted outward. Therefore, the lower part is illuminated within a predetermined light distribution range.

  On the other hand, the light traveling from the light emitting element 22 toward the outer periphery of the shade 7, that is, toward the light transmission control unit 72, mainly transmits through a plurality of small circular light regions 72 b where the transmittance is relatively large. 7a is irradiated outward. In this case, the light transmitted through the region 72b is directed to the polyhedron formed by the concave and convex portions 71a of the shade decorative frame 7a, which is a prism. Is done.

  When viewed from the side of the lighting device as shown in FIG. 5, such irradiation light appears to be shining with point-like light, and the glare caused by the light emitting element 22 is suppressed. Become so.

  Therefore, the lower part is illuminated in a predetermined light distribution range, and on the side of the lighting device, the light is designed so that the point-like light shines brightly, and a decorative effect is obtained. The production effect will be enhanced.

  At the same time, when the indirect light source unit 9 is energized, each light emitting element 92 is turned on, and the light emitted obliquely upward from the light emitting element 92 is transmitted through the translucent cover 93 and the adapter guide 5 The ceiling surface is mainly irradiated so as to be emitted from the surroundings. Therefore, the ceiling surface becomes bright and the feeling of brightness in the space can be improved.

During the lighting of the light emitting element 22, heat is generated. Since the back side of the substrate 21 is thermally coupled to the apparatus main body 1, this heat is effectively conducted to the apparatus main body 1 and is dissipated over a wide area.
As described above, according to the present embodiment, it is possible to provide an illuminating device that can suppress glare, enhance the effect, and increase the added value as an illuminating device.

  In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary of invention. The above embodiment is presented as an example, and is not intended to limit the scope of the invention.

DESCRIPTION OF SYMBOLS 1 ... Apparatus main body (chassis), 2 ... Light source part,
3 ... lighting device, 4 ... center member,
5 ... Mounting part (adapter guide), 6 ... Optical sensor,
7 ... sade, 7a ... sade makeup frame (optical component),
8 ... cover member, 9 ... indirect light source,
10 ... auxiliary component unit, 21 ... substrate,
22 ... Light emitting element (LED), 25 ... Light source cover,
71a ... uneven part, 72 ... light transmission control part,
72a ... a region where the light transmittance is relatively small,
72b... An area where the light transmittance is relatively large,
A ... Adapter, C ... Device mounting surface (ceiling surface),
Cb ... Wiring device (hook ceiling body), Rc ... Infrared remote control transmitter

Claims (3)

A light source unit having a light emitting element as a light source;
A light transmission control unit formed so that light is irradiated from the light source unit and a region having a relatively small light transmittance and a region having a relatively large light transmittance are mixed;
An optical component comprising a polyhedron provided corresponding to the light transmission control unit;
An illumination device comprising:   The lighting device according to claim 1, wherein the light transmission control unit is formed in a translucent shade covering the light source unit.   The lighting device according to claim 2, wherein the light transmission control unit is formed on an outer peripheral portion of the light-transmitting shade.

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