JP2010073627A - Illumination device and luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination device capable of readily producing an intended light distribution property, and to provide a luminaire equipped with the illumination device. <P>SOLUTION: The illumination device includes: a light source 11; a reflector 13 for reflecting light from the light source; and an irradiation angle adjusting reflector 14, selectively installed to the reflector, for changing the irradiation angle of the light from the light source. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

   The present invention relates to a lighting device capable of obtaining a desired light distribution characteristic and a lighting fixture incorporating the lighting device.

In recent years, instead of filament light bulbs, lighting fixtures have been commercialized that employ light emitting diodes, which are semiconductor light emitting elements that have a long lifetime and low power consumption, as light sources. For example, Patent Document 1 discloses a ceiling composed of an LED element, a substrate on which the LED element is mounted, and a reflecting plate and a light projecting lens provided on the substrate so as to surround the entire light emitting region of the LED element. A recessed downlight is shown. Further, for example, Patent Document 2 shows a spotlight in which a white light emitting diode is installed on a substrate, a lens fixing plate and a front cover are disposed in front of the substrate, and these are positioned in a lamp shade. . Further, for example, Patent Document 3 discloses an illumination device using an LED that can form a desired light distribution pattern as a light source by combining three types of fly-eye lenses. Further, for example, in Patent Document 4, a first reflecting member provided facing the LED chip and reflecting the light from the LED to the side is provided in the second reflecting member so as to suppress the occurrence of glare. A lighting device is shown.
JP 2004-179048 A JP 2006-294526 A JP 2007-95647 A JP 2008-205410 A

  In general, in a downlight as disclosed in Patent Document 1, in order to mainly illuminate the center of a room, in order to construct a lighting apparatus that has a relatively small change in luminous intensity over the periphery, the light from the light source is spread over a wide angle. A wide-angle reflector for irradiation is used. On the other hand, in the spotlight shown in Patent Document 2, a lens is used in order to illuminate only the exhibits in a store or the like with a high central luminous intensity. The light distribution of these devices is performed in accordance with the performance and application intended for the design of each device. Therefore, it is necessary to line up a wide-angle lighting device (for example, a downlight) and a narrow-angle lighting device (for example, a spotlight) as products, and each product must be stocked. The problem of increasing

  Further, according to Patent Document 3, a desired light distribution pattern can be configured according to the use of illumination. However, since the configuration is performed by a lens, a fly-eye lens holding plate for holding various lenses is provided. For example, when a wide-angle lighting fixture is configured as a narrow-angle lighting fixture, an expensive fly-eye lens must be prepared for both wide-angle and narrow-angle use. A cost problem arises. In Patent Document 4, the first reflecting member is provided in the second reflecting member to control light, but the purpose is to suppress glare to the last, and a desired light distribution pattern can be obtained. I can't get it. For this reason, in this type of lighting fixture, for example, a wide-angle light distribution pattern can be easily changed to a narrow-angle light distribution pattern as necessary, and the product inventory is not reduced. The challenge is how to realize a lighting device that can be reduced.

  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 capable of easily creating a desired light distribution characteristic and a luminaire incorporating the illuminating device.

  In order to achieve the above-mentioned object, the invention of the lighting device according to claim 1 includes: a light source; a reflector that reflects light from the light source; and a light source that is selectively mounted on the reflector and changes an irradiation angle of the light from the light source. And an irradiation angle adjusting reflector. According to the present invention, the light distribution pattern of the reflector can be easily adjusted as needed by the reflector for adjusting the irradiation angle by the reflector for adjusting the irradiation angle that is selectively mounted on the reflector and changes the light irradiation angle of the light source. Can be changed.

  In the present invention, the lighting device is not limited to housing such as downlights and spotlights, and even if it constitutes various lighting fixtures for facilities and businesses such as stores and offices, it is further replaced with incandescent bulbs for general lighting. You may comprise the LED bulb | ball etc. which used the light emitting diode etc. which are possible.

  The light source is preferably a semiconductor light emitting element using a semiconductor as a light source, such as a light emitting diode or a semiconductor laser, but may be an incandescent bulb, a halogen bulb, a discharge lamp, or the like. Although a plurality of light sources are preferably configured, a necessary number is selected according to the use of illumination, and for example, it may be configured by a single light source.

  For example, the reflector for adjusting the illumination angle that is selected as the reflector and changes the illumination angle of the light from the light source can be adjusted to a narrow-angle light distribution by using the reflector for adjusting the illumination angle with a reflector for adjusting the illumination angle. However, a reflector having a narrow-angle light distribution may be adjusted to a wide-angle light distribution by an irradiation angle adjusting reflector, and the light distribution of one reflector is important. In other words, the light distribution of the other reflector can be changed, in other words, the light distribution of the two reflectors can be relatively changed to arbitrarily adjust the light irradiation angle of the light source. I just need it.

  In addition, the reflector, for example, mainly illuminates the center of the room, so that the light from the light source is wide-angled to form a luminaire that can obtain a wide-angle light distribution with relatively little change in luminous intensity over the periphery. In order to obtain a light distribution to be rotated, and to obtain a light distribution to be rotated, it may be formed of a “mortar-shaped” concave portion having a circular cross section so as to surround the light emitting region of the light source. Moreover, for example, the shape may be a “mortar-shaped” recess having a rectangular cross section, and is not limited to a specified shape. The material is made of white synthetic resin with light resistance, heat resistance and electrical insulation, for example, PBT (polybutylene terephthalate), synthetic resin such as acrylic and ABS, considering light reflection performance. May be. Moreover, even if the surface is painted white, a metal such as aluminum or silver may be deposited or plated to be processed into a mirror surface or a half mirror surface. Further, it may be made of a metal such as aluminum or copper, and white coating, vapor deposition, plating, or the like may be performed similarly to the above synthetic resin.

  The reflector may be provided corresponding to each light source according to the number of light sources. The plurality of reflectors provided individually may be configured so as to obtain the same light distribution characteristics or may be combined with those having different light distribution characteristics. Moreover, you may provide one common reflector with respect to several light sources. Furthermore, one reflector may be provided for one light source.

  The reflector for adjusting the irradiation angle is mounted on the reflector, for example, a narrow-angle reflector that narrows the light irradiation angle in order to illuminate only the exhibits in a store or the like by increasing the central luminous intensity. However, it may be a reflector for further widening the irradiation angle. In short, the reflector should be appropriately selected and mounted according to the purpose and purpose of illumination. Therefore, all the reflectors that can adjust the light irradiation angle of the light source are allowed.

  For example, in order to obtain a narrow-angle light distribution that illuminates in a spot manner, the irradiation angle adjusting reflector reflects light from the light source at a narrow angle and further obtains a light distribution to be rotated. You may form in the recessed part of a "conical truncated cone shape" whose cross section makes a circle so that a light emission area may be surrounded. Further, for example, the shape may be a “square pyramid-shaped” recess having a rectangular cross section, and is not limited to a specified shape. The material may be integrally formed with a heat-resistant synthetic resin such as white polybutylene terephthalate (PBT), or a synthetic resin such as acrylic or ABS, as with the reflector. Moreover, even if the surface is painted white, a metal such as aluminum or silver may be deposited or plated to be processed into a mirror surface or a half mirror surface. Further, it may be made of a metal such as aluminum or copper, and white coating, vapor deposition, plating, or the like may be performed similarly to the above synthetic resin.

  The reflector for adjusting the irradiation angle may be mounted corresponding to each reflector according to the number of reflectors. The plurality of irradiation angle adjusting reflectors provided individually may be configured so as to obtain the same light distribution characteristics, or may be combined with ones having different light distribution characteristics. Moreover, you may make it mount | wear only with a required number of reflectors.

  According to a second aspect of the present invention, there is provided a lighting device comprising: a semiconductor light emitting element; a base on which the semiconductor light emitting element is disposed; a reflector that reflects light from the semiconductor light emitting element; And an irradiation angle adjusting reflector having a conductive reflecting film and spaced apart from each other.

  In the present invention, the substrate is a member for disposing a semiconductor light emitting element as a light source, and is preferably composed of a circuit board on which the semiconductor light emitting element is mounted. However, the configuration of the circuit board and the means for mounting are specified. It is not limited to those. The material of the substrate may be composed of, for example, a synthetic resin such as an epoxy resin, or may be composed of a metal such as aluminum or copper from the viewpoint of thermal conductivity. The shape may be a disk shape for constituting a point module, or may be a long line shape constituting a line module, and all shapes for obtaining the desired light distribution characteristics Is acceptable.

  The irradiation angle adjusting reflector is disposed away from the substrate and has a conductive reflection film. The conductive reflection film is processed into a mirror surface or a semi-mirror surface in consideration of light reflection performance. Therefore, a reflective film formed by depositing or plating a metal such as aluminum or silver on the synthetic resin is allowed. Furthermore, the reflector for adjusting the irradiation angle is disposed away from the base so as to be electrically insulated from the substrate on which the semiconductor light emitting element is disposed, but the distance dimension to be separated is determined by design. All dimensions are acceptable. As a means for disposing the irradiation angle adjusting reflector away from the base body, for example, a stopper member that engages with the opening end of the concave portion of the reflector is formed on the irradiation angle adjusting reflector so as to have a predetermined separation. Even if the dimensions are maintained, or the shape of the outer peripheral surface of the reflector for adjusting the irradiation angle is configured to match the concave portion of the “mortar shape” of the reflector, and the predetermined separation dimension is maintained. You may do it. In addition, even if the insulation is performed by forming a space between the substrate and the reflector for adjusting the irradiation angle, an electrical insulator such as silicone resin is interposed in the space to ensure more reliable electrical insulation. You may make it plan.

  According to a third aspect of the present invention, there is provided a lighting device comprising: a plurality of semiconductor light emitting elements; a base on which the plurality of semiconductor light emitting elements are disposed; a reflector including a plurality of recesses for reflecting the light of the semiconductor light emitting elements; A plurality of integrated reflectors for adjusting the irradiation angle, which are selectively mounted in a concave portion of the body, are disposed apart from the base body, and have a conductive reflective film. .

  For example, when the plurality of irradiation angle adjusting reflectors are made of synthetic resin, the plurality of irradiation angle adjusting reflectors are configured by sprue runners that are inevitably formed during resin molding. However, it may be integrated by a dedicated part for connection. Further, it is preferable that the plurality of integrated reflectors for adjusting the irradiation angle can be easily separated by hand, for example, and the necessary number of reflectors for adjusting the irradiation angle can be easily prepared. Separation is not a necessary condition for realizing the present invention, and is appropriately selected as necessary.

  The invention of a lighting fixture according to claim 4 is characterized by comprising: a fixture main body; and the lighting device according to any one of claims 1 to 3 incorporated in the fixture main body.

  According to the first aspect of the present invention, the light distribution pattern of the reflector can be easily changed as needed by the irradiation angle adjusting reflector that is selected and attached to the reflector and changes the light irradiation angle of the light source. Thus, it is possible to provide a lighting device that can easily create a desired light distribution characteristic.

  According to the second aspect of the present invention, the light distribution pattern of the reflector can be easily changed as required by the irradiation angle adjusting reflector that is selectively mounted on the reflector, and the desired distribution can be obtained. It is possible to provide an illuminating device capable of easily creating light characteristics. Further, the irradiation angle adjusting reflector having the conductive reflection film disposed apart from the substrate simplifies the processing process of the conductive reflection film and can ensure electrical insulation. It becomes.

  According to the third aspect of the present invention, the light distribution pattern of each reflector can be easily changed as needed by the plurality of irradiation angle adjusting reflectors that are selectively mounted in the recesses of each reflector. It is possible to provide an illuminating device that can easily produce a desired light distribution characteristic. Furthermore, the plurality of integrated reflectors for adjusting the irradiation angle, which are disposed apart from the substrate and have a conductive reflection film, simplify the process of processing the conductive reflection film and ensure electrical insulation. As a result, the assembly work can be simplified.

  According to the invention described in claim 4, it is possible to provide a lighting fixture capable of easily creating a desired light distribution characteristic by the lighting device according to any one of claims 1 to 3 incorporated in the fixture body. it can.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a lighting device according to the present invention and a lighting fixture incorporating the lighting device will be described with reference to the drawings.

  As shown in FIG. 1, the illuminating device 10 of the present embodiment is selected as a light source 11, a base 12 on which the light source is disposed, a reflector 13 composed of a plurality of recesses for reflecting light from the light source, and a recess for each reflector. It is comprised with the reflector 14 for irradiation angle adjustment with which it mounts.

  The light source 11 is composed of a semiconductor light emitting element, in this embodiment, a light emitting diode (hereinafter referred to as “LED”), and a plurality of LEDs 11 having the same performance, in this embodiment, six LEDs 11 are prepared. In this embodiment, a blue LED chip and a high-intensity, high-power LED that emits white light by a yellow phosphor excited by the blue LED chip are used, and light rays are emitted in one direction, that is, the optical axis xx of the LED. Is mainly emitted. Here, the optical axis xx is substantially perpendicular to the surface of the base 12 on which the LED 11 is mounted (FIG. 3A). The base 12 is made of a circuit board, and the circuit board is made of a disk-shaped circuit wiring board made of epoxy resin, and six LEDs 11 are mounted on the surface in a concentric manner at substantially equal intervals.

  The reflector 13 is integrally formed in a disc shape with a white synthetic resin having light resistance, heat resistance and electrical insulation, in this embodiment, PBT (polybutylene terephthalate). On the surface side of the disk, a plurality of recesses 13a having the same shape and dimensions, in which the white inner surface forms a paraboloidal shape with a white inner surface, are mounted on the substrate 12 in this embodiment. The six LEDs 11 are integrally formed so as to be concentrically arranged at substantially equal intervals so as to face each of the LEDs 11.

  The recesses 13a constitute six individual reflectors, and in order to mainly illuminate the central part of the room, the LED 11 that is a light source so as to constitute a light distribution pattern with relatively little change in luminous intensity over the periphery. In order to reflect light from a wide angle and to obtain a light distribution to be rotated, a “mortar-shaped” reflecting surface 13 b having a circular cross section is formed so as to surround the light emitting region of the LED 11, and the recess 13 a A through hole 13d is formed at the bottom of the light emitting portion 13c. Further, the recess 13a is shaped so that a narrow-angle reflector 14 as an irradiation angle adjusting reflector, which will be described later, can be fitted and mounted, and an annular groove 13e is formed at the opening edge of the light emitting portion 13c. To do. In addition, an opening 13f having a space inside is formed on the back side of the disk constituting the reflector 13.

  The base body 12 on which each LED 11 configured as described above is mounted is fitted into the opening 13f of the reflector 13 and fixedly supported by an adhesive such as silicone resin. Thereby, each LED 11 is arranged so as to be exposed and exposed to the center of the through-hole 13d formed in the bottom surface of each concave portion 13a of the reflector 13, and is configured by each concave portion 13a. The optical axis yy of the LED 11 and the optical axis xx of the LED 11 are substantially coincident with each other, and a wide-angle illumination device 10 for forming a downlight 20 described later is formed (FIG. 3A). .

  The reflector 13 of the illuminating device 10 configured as described above is appropriately selected as necessary and is equipped with a reflector for adjusting an irradiation angle, in this embodiment, a reflector for narrow angle 14, and forms a spotlight described later. Thus, a narrow-angle illumination device 10 'is formed.

  As shown in FIG. 1, the narrow-angle reflector 14 to be selectively mounted on the reflector 13 is a white synthetic resin having light resistance, heat resistance, and electrical insulation, similar to the reflector 13. Then, it is made of PBT (polybutylene terephthalate), and on its surface side, a concave portion 14a is formed integrally on the surface side and the white inner surface forms a paraboloid. In order to illuminate only the exhibits in a spot or the like by increasing the central luminous intensity in a store or the like, the concave portion 14a reflects light from the LED 11 as a light source at a narrow angle and further obtains a light distribution to be rotated. A “conical frustum-shaped” reflecting surface 14b having a circular cross section so as to surround the light emitting region of the LED 11 (which is inclined more steeply than the inclination angle of the reflecting surface 13b of the reflector 13) is formed, and the concave portion 14a is formed. The through hole 14d is formed in the bottom part with the opening of the light emitting part 14c. Further, the outer peripheral surface of the concave portion 14a is formed in a “mortar-shaped” convex shape that substantially matches the “mortar-shaped” concave portion 13a of the reflector 13, and the fitting portion 14e is integrally formed, so that the opening edge of the light emitting portion 14c is formed. An annular flange portion 14f that acts as a stopper is formed integrally with the portion, and can be fitted into an annular groove portion 13e formed at the opening edge of the light emitting portion 13c of the reflector 13 described above.

  As shown in FIG. 3B, the narrow-angle reflector 14 configured as described above has a convex fitting portion 14 e inserted into the “mortar-shaped” concave portion 13 a of the reflector 13, so that the light emitting portion 14 c Insert until the flange portion 14f is engaged with and engaged with the annular groove portion 13e of the reflector 13. As a result, the flange portion 14f of the narrow-angle reflector 14 serves as a stopper, and further insertion is stopped, and the convex fitting portion 14e of the narrow-angle reflector 14 has the "13" It is fitted in the “mortar-shaped” recess 13a, and the upper surface of the narrow-angle reflector 14 and the upper surface of the reflector 13 are flush with each other. As a result, each LED 11 is arranged so as to be exposed and exposed to the center of the through-hole 14d formed in the bottom surface of the concave portion 14a of the narrow-angle reflector 14, and the reflective surface 14b constituted by the concave portion 14a. The optical axis zz of the LED 11 and the optical axis xx of the LED 11 substantially coincide with each other (FIG. 3B). When the two are fitted together as described above, the end portion of the through hole 14d of the recess 14a in the narrow-angle reflector 14 and the surface side of the base body 12, in other words, each LED 11 mounted on the base body 12 is mounted. Are mounted so as to be spaced apart from each other with a predetermined dimension a.

  The narrow-angle reflector 14 is provided integrally with the six narrow-angle reflectors 14 having the concave portions 14a having the same shape and dimensions corresponding to the six concave portions 13a of the reflector 13. That is, as shown in FIG. 1, six narrow-angle reflectors 14 are simultaneously molded by resin molding so as to be substantially equidistantly concentrically, and the sprue By leaving the runner 14g, the six narrow-angle reflectors 14 are integrated and connected. In the six narrow-angle reflectors 14 that are integrated so as to be substantially equidistantly arranged concentrically, the concentric diameter and spacing are the same as the diameter of the concentric circle in which the recess 13a of the reflector 13 is provided. It is formed so as to be substantially the same as the distance dimension.

  Thus, if the six narrow-angle reflectors 14 connected and integrated by the sprue runner 14g are opposed to the six concave portions 13a of the reflector 13, the six narrow-angle reflectors 14 are reflected. It is automatically positioned so as to face the concave portion 13a of the body 13, and the six narrow-angle reflectors 14 are simultaneously inserted and fitted into the six concave portions 13a of the reflector 13 in a substantially matched state. . In this state, the narrow-angle reflector 14 can be attached to and detached from the recess 13a of the reflector 13, but may be fixed with a transparent adhesive. In this embodiment, it is possible to attach and detach without bonding. As described above, the illumination device 10 ′ for forming the spotlight having the narrow-angle reflector 14 is formed (FIGS. 2 and 3B).

  In FIG. 1, 13g is a groove formed radially on the surface of the reflector 13 corresponding to the sprue / runner 14g of the reflector 14 for narrow angle. Six narrow angle reflectors 14 are connected in the groove. The sprue runner 14g is stored. Thereby, the groove | channel 13g can perform the effect | action of positioning at the time of making the reflector 14 for narrow angles 14 oppose the six recessed parts 13a of the reflector 13. FIG.

  Also, the six narrow-angle reflectors 14 made of PBT are mirror-finished by applying a reflective film, in this embodiment, an aluminum deposited film, that is, a conductive reflective film, in order to further improve the light reflection performance. To be processed. At this time, as described above, the end of the through hole 14d of the recess 14a in the narrow-angle reflector 14 and each LED 11 mounted on the base 12 are spaced apart with a predetermined dimension a. Therefore, the narrow-angle reflector 14 provided with the conductive reflection film and the base 12 are securely insulated and attached. Thereby, when aluminum is vapor-deposited on the narrow-angle reflector 14, a portion that may come into contact with the surface side of the substrate 12, such as an end portion of the through-hole 14 d of the recess 14 a in the narrow-angle reflector 14 is masked. Evaporation work can be performed without doing.

  The six narrow-angle reflectors 14 configured as described above are separated from the sprue runner 14g to obtain various light distribution characteristics, and are attached to the individual recesses 13a of the wide-angle reflector 13 or not. The required number of narrow-angle reflectors 14 can be fitted and attached to the recess 13a at any position in a freely detachable state.

  The wide-angle illumination device 10 and the narrow-angle illumination device 10 ′ configured as described above are used as a light source unit of a lighting fixture such as a downlight or a spotlight according to various light distribution patterns. Next, the configuration of the downlight and the spotlight using the illumination device will be described. First, a case where a downlight is configured will be described.

  As shown in FIG. 4A, the downlight 20 includes an instrument body 21, a light source unit 22, a power source unit 23 for lighting the light source, a power terminal block 24 that supplies power to the power source unit, and a decorative frame 25. To do.

  The instrument main body 21 is provided with a light source part 22 at one end and a power terminal block 24 at the other end, and is a heat conductive aluminum having a cylindrical body open at both ends for accommodating the power source part 23 inside. Consists of metals such as Moreover, the instrument main body 21 is located on the opening 21a side of one end portion inside the cylindrical body, and is formed with a partition plate 21b integrally, and includes a recess for housing the light source unit 22 between the opening and the partition plate. The storage portion 21c is integrally formed.

  The light source unit 22 is configured by housing the wide-angle illumination device 10 described above. That is, in the present embodiment, a wide-angle reflector 13 is incorporated in order to construct a lighting apparatus that mainly illuminates the central portion of the room as a light source for downlights and has a relatively small change in luminous intensity over the periphery. The illuminating device 10 shown to (a) is employ | adopted for the light source part 22. FIG.

  In the illumination device 10 having the above-described configuration, the back surface side of the circuit board constituting the base 12 is provided with an insulating sheet or adhesive made of a silicone resin having thermal conductivity and electrical insulation on the partition plate 21b of the instrument body 21. And is housed and incorporated in the light source unit 22 by being supported by a fixing means such as a screw. Thereby, the optical axis aa of the illuminating device 10 substantially coincides with the central axis bb of the instrument body 21 made of a cylindrical body, and the light emitting portion 13c of the reflector 13 is positioned inside the decorative frame 25. A light source unit 22 having a substantially circular light emitting surface in plan view as a whole is configured. Moreover, each LED11 exposed to 13d of through-holes of the reflector 13 is protected by the transparent cover member 25a, and a charging part is covered.

  Further, the circuit board constituting the base 12 and the partition plate 21b are thermally connected and fixed. The power supply unit 23 has a lighting circuit for lighting the lighting device 10 housed in the light source unit 22 of the fixture main body 21 as described above, and is connected to the lighting device 10 by a lead wire w1 and is connected to the power supply terminal block 24. 100V commercial power is supplied via

  As described above, the illumination device 10 having the wide-angle reflector 13 is incorporated in the light source unit 22 at one end, and the downlight 20 having the desired wide-angle light distribution characteristic is configured. The downlight 20 having the above-described configuration is installed by connecting a single or a plurality of downlights 20 to a ceiling or the like, which is an installation surface, using a feeding cable. When lit, each LED 11 emits light, and the light emitted from the LED is emitted from the light emitting part 13c while being reflected by the reflecting surface 13b of the reflector 13, and has a light distribution characteristic with relatively little change in luminous intensity around the room, Illumination having a light distribution characteristic as a downlight intended to be relatively bright in the center of the light and gradually darkening around the periphery.

  Next, the case where a spotlight is comprised by the downlight comprised above is demonstrated. First, the narrow-angle reflector 14 is selected and mounted on the wide-angle reflector 13 of the downlight 20 configured as described above to constitute the illumination device 10 ′ shown in FIG. That is, six narrow-angle reflectors 14 integrated as a separate part and sprue runners 14 g are used, and the respective narrow-angle reflectors 14 are attached to the six recesses 13 a of the reflector 13. The narrow-angle illumination device 10 ′ is configured and housed in the light source unit 22 of the instrument main body 21 to configure the built-in spotlight 20 ′. Note that the back side of the transparent cover member 25 a abuts against the flange 14 e of the narrow-angle reflector 14, and the narrow-angle reflector 14 is prevented from coming out of the recess 13 a of the reflector 13. Moreover, each LED11 exposed to 14 d of through-holes is protected by the cover member 25a, and a charging part is covered.

  When this spotlight 20 'is turned on, each LED 11 emits light and the light emitted from the LED is emitted from the light emitting portion 14c while being reflected by the reflecting surface 14b of the narrow-angle reflector 14, and the central luminous intensity is increased in a store or the like. Thus, it is possible to illuminate only the exhibits in a spot manner and perform illumination with light distribution characteristics as a target spotlight.

  Also, according to the situation of the installation site, select the number of narrow-angle reflectors 14 to be used while observing the illumination status, and whether or not the plurality of recesses 13a of the wide-angle reflector 13 need to be mounted. While selecting and adjusting the mounting position in the recess as appropriate, the desired light distribution characteristics are created and installed. Similarly, when the lighting environment is changed after installation, the number of the narrow-angle reflectors 14 and the mounting position of the reflector 13 in the recess 13a are appropriately selected, adjusted and installed in the same manner. A lighting fixture having a desired light distribution characteristic according to the lighting environment is constructed on the spot each time.

  As described above, according to the present embodiment, the wide-angle light distribution pattern can be easily changed to the narrow-angle light distribution pattern as necessary by the narrow-angle reflector 14 that is selectively mounted on the wide-angle reflector 13. Can be made. As a result, only a wide-angle lighting fixture needs to be stocked as a product, and a narrow-angle lighting fixture can be configured by attaching a narrow-angle reflector to the reflector of the wide-angle lighting fixture, and the product lineup. The inventory of goods can be reduced without reducing.

  Furthermore, the mounting operation can be performed by a simple operation of simply inserting the narrow-angle reflector 14 into the recess 13 a of the reflector 13. In particular, the narrow-angle reflector 14 is integrated by a sprue runner 14g, so that six narrow-angle reflectors 14 can be mounted at the same time, thereby further simplifying the operation. Further, as a means for integrating the six narrow-angle reflectors 14, a sprue runner 14 g that is inevitably generated at the time of resin molding can be used, and it is not necessary to perform special processing or the like in terms of cost. Will also be advantageous. Further, the sprue runner 14g can be used as a handle for attaching or removing the sprue runner 14g, thereby further facilitating the work. Moreover, it can also be used as a jig for vapor deposition such as grabbing during metal vapor deposition, and the vapor deposition operation can be easily performed.

  Furthermore, since the groove 13g formed radially corresponding to the sprue runner 14g of the reflector 14 for narrow angle is formed on the surface of the reflector 13, the sprue runner 14g is accommodated in the groove. The positioning operation when the six narrow-angle reflectors 14 are made to face the six concave portions 13a of the reflector 13 can be performed, and the operation is further facilitated. Further, since the reflector 13 is constituted by the concave portion 13a and the narrow-angle reflector 14 is fitted and mounted in the concave portion, the narrow-angle reflector 14 can be reliably supported, and stable optical performance is achieved. Can be demonstrated. Further, if the shape of the outer peripheral surface of the narrow-angle reflector 14 is configured to perfectly match the “mortar-shaped” recess of the reflector 13 so as to maintain a predetermined separation dimension, By matching the two, both can be firmly supported by so-called taper coupling, and there is no gap between the two so that light from the LED does not leak into the gap and no light loss occurs.

  Furthermore, since the end portion of the through hole 14d of the concave portion 14a in the narrow-angle reflector 14 and each LED 11 mounted on the base 12 are mounted with a predetermined dimension a, the conductive member is electrically conductive. The narrow-angle reflector 14 provided with the reflective film is reliably electrically insulated from the base 12 and can provide a safer lighting fixture. At the same time, when a metal such as aluminum is vapor-deposited on the narrow-angle reflector 14, a portion that may come into contact with the surface side of the substrate 12, such as an end of the through hole 14 d of the recess 14 a in the narrow-angle reflector 14 Therefore, it is possible to perform a vapor deposition operation without masking the mask, omit a troublesome masking operation, and provide a lighting apparatus that is further simplified and advantageous in terms of cost.

  Furthermore, the integrated six narrow-angle reflectors 14 can be easily separated from the sprue runner 14g. For this reason, it is selected whether or not the individual concave portions 13a of the wide-angle reflector 13 are to be mounted, and the necessary number of narrow-angle reflectors 14 can be arbitrarily set to the concave portions 13a at any position. It is possible to fit and mount it in a freely detachable state, and obtain various desired light distribution characteristics. Moreover, any desired light distribution characteristic can be easily created by a simple operation of simply fitting into the narrow-angle reflector 14. Furthermore, even when the lighting environment is changed after installation, the number of the reflectors 14 and the arrangement location are appropriately selected by attaching and detaching the narrow-angle reflector 14 on the site, and the lighting environment is adjusted to match the changed lighting environment. Can do. In addition, the light distribution can be changed each time according to the atmosphere. Furthermore, it is possible to provide a variety of lighting fixtures having various and various light distribution characteristics.

  As described above, in the present embodiment, the six narrow-angle reflectors 14 are formed in the same shape. However, as shown in FIG. 5, the narrow angle is changed by changing the inclination angle and shape of the reflecting surface 14b ′ formed of the recess 14a ′. It may be constituted by a corner reflector 14 'and may be mounted in combination.

  Moreover, as shown in FIG. 6, you may comprise the LED light bulb 30 using the light emitting diode which can be substituted to the incandescent light bulb for general illumination. That is, the LED light bulb 30 includes a light source unit 31 incorporating the wide-angle illumination device 10 according to the present embodiment or a narrow-angle illumination device 10 ′ as necessary, a cover member 33 housing the lighting device 32, and a base. 34. The base 34 is formed of, for example, an E26 type base that can be attached to a socket for an incandescent light bulb for general illumination. According to this LED bulb, it is possible to configure LED bulbs having various light distribution characteristics, and it is possible to realize a light distribution pattern suitable for various illumination environments by a simple operation only by replacing the bulb. Become. 6A shows a wide-angle LED light bulb 30 configured by incorporating the wide-angle illumination device 10, and FIG. 6B shows a narrow configuration configured by incorporating the narrow-angle illumination device 10 ′. A corner LED bulb 30 'is shown.

  Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention.

The perspective view which shows the illuminating device which concerns on embodiment of this invention. The perspective view which similarly shows the illuminating device for narrow angles. The lighting device is also shown, (a) a sectional view showing a wide-angle lighting device, and (b) a sectional view showing a narrow-angle lighting device. The downlight which similarly incorporated the illuminating device is shown, (a) is the longitudinal cross-sectional view of the downlight incorporating the illuminating device for wide angles, (b) is the downlight which has the spotlight function incorporating the illuminating device for narrow angles. FIG. Sectional drawing which similarly shows the modification of an illuminating device. The modification of an illuminating device is similarly shown, (a) is sectional drawing which shows the LED light bulb incorporating the illuminating device for wide angles, (b) is sectional drawing which shows the LED light bulb incorporating the illuminating device for narrow angles.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Illuminating device 11 Light source 12 Base | substrate 13 Reflector 14 Reflector for irradiation angle adjustment 20, 20 ', 30, 30' Lighting fixture

Claims (4)

With a light source;
A reflector that reflects the light of the light source;
A reflector for adjusting the irradiation angle, which is selected and mounted on the reflector and changes the irradiation angle of the light from the light source;
An illumination device comprising: A semiconductor light emitting device;
A substrate on which a semiconductor light emitting element is disposed;
A reflector that reflects the light of the semiconductor light emitting device;
An irradiation angle adjusting reflector that is selectively mounted on the reflector and is spaced apart from the substrate and has a conductive reflecting film;
An illumination device comprising: A plurality of semiconductor light emitting devices;
A substrate on which a plurality of semiconductor light emitting elements are disposed;
A reflector comprising a plurality of recesses for reflecting the light of the semiconductor light emitting device;
A plurality of integrated reflectors for adjusting the irradiation angle, which are selectively mounted in the recesses of the respective reflectors, are disposed apart from the substrate, and have a conductive reflective film;
An illumination device comprising: An instrument body;
A lighting device according to any one of claims 1 to 3 incorporated in an appliance body;
The lighting fixture characterized by comprising.

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