JP2012089395A - Led lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting fixture flexibly corresponding to combination of light reflection characteristics for each LED element, in one having a plurality of LED elements arranged.SOLUTION: The lighting fixture is provided with an LED-mounting substrate 15 with a plurality of LED elements 16 mounted, light reflectors 18 endowed with desired light reflection characteristics for each LED element 16 for reflecting light generated from the LED element 16, and light reflector supporting substrates 19 loaded on the LED-mounting substrate 15. The light reflector supporting substrate 19 is equipped with openings 19a at positions corresponding to mounting positions of the LED elements 16, and the light reflector 18 is mounted on each opening 19a.

Description

  The present invention relates to an LED lighting fixture that is a lighting fixture using an LED element as a light source.

  In recent years, lighting fixtures using LED elements as light sources have been proposed. For example, in a configuration in which a plurality of LED elements are attached to a substrate, each LED element is disposed in each of a reflective cup such as a cup having a plurality of openings formed in a reflector layer. Here, the reflector layer has an inner surface coated with a highly reflective material (for example, Patent Document 1).

JP 2008-2111174 A

However, as exemplified in the background art, recently proposed LED lighting fixtures have a reflective cup that surrounds individual LED elements attached to the substrate, and this reflective cup is a reflector layer laminated on the substrate. It is molded in one piece.
Therefore, in the LED lighting device, when the light reflection characteristics such as the light reflection direction and the reflection intensity are different for each LED element, it is necessary to provide a reflector layer for each LED lighting device. It is anticipated that there will be a wide variety of combinations of light reflection characteristics required for individual LED elements for each specification related to the illumination characteristics of LED lighting fixtures, and it is necessary to prepare a reflector layer for each combination. When manufacturing LED lighting fixtures, there are many types of reflector layers that should be prepared in advance, which may be complicated in manufacturing management.

  In addition, since the reflecting cups for the plurality of LED elements are integrally formed, the size of the workpiece may be large and the processing shape may be complicated, and processing accuracy and the like are limited.

  In view of such circumstances, the present invention can flexibly cope with a combination of different light reflection characteristics for each LED element in an LED lighting apparatus in which a plurality of LED elements are arranged, and the manufacturing burden is reduced. LED lighting fixtures are provided.

  (1) An LED lighting apparatus, an LED element, an LED mounting board on which a plurality of LED elements are mounted, a light reflector having desired light reflection characteristics and reflecting light generated from the LED element, And a light reflector support substrate having an opening that is mounted on the LED mounting substrate and in which the light reflector is mounted at a position corresponding to the mounting position of the LED element.

  The light reflector which reflects the light radiate | emitted from an LED element, and the light reflector support substrate which mounts a light reflector are provided separately. Thereby, the light reflector from which a light reflection characteristic differs for every LED element mounted in an LED mounting board | substrate can be arrange | positioned easily. Even when there are a wide variety of combinations of light reflection characteristics required for individual LED elements for each lighting specification of the LED lighting fixture, it is not necessary to provide various types of parts and can flexibly respond to the required specifications. . It is possible to easily cope with various specifications. It is possible to simplify the management in manufacturing by reducing the number of inventory members when manufacturing the LED lighting apparatus, and it is possible to reduce the manufacturing cost and the time required for manufacturing.

  Furthermore, since the light reflectors corresponding to one LED element are individually molded instead of collectively forming the light reflectors corresponding to a plurality of LED elements, the molding process becomes easy and the light reflection with high accuracy is achieved. It becomes possible to form a light reflector having characteristics. Moreover, it becomes possible to easily change the light reflection characteristics of the LED lighting fixture by changing the type of the light reflector attached to the opening of the light reflector support substrate according to the desired light reflection characteristics. .

  (2) Moreover, the LED lighting fixture which concerns on this invention may seal a light reflector, a light reflector support substrate, and a LED mounting substrate with transparent resin. Thereby, the light reflector, the light reflector support substrate, and the LED mounting substrate are fixed. Moreover, it becomes possible to perform a moisture-proof process and a drip-proof process about an LED mounting board.

  (3) Moreover, the light reflection wall surface with which the light reflector which concerns on this invention is provided can be made into the shape according to the light reflection characteristic. For example, the light reflection wall surface is a flat surface, and the flat surface is formed at a predetermined angle with respect to the normal line of the light irradiation surface of the LED mounting substrate, thereby reflecting light in a predetermined direction according to the formation angle. Is possible.

  (4) The light reflecting wall surface provided in the light reflector according to the present invention may be a conical surface. By making the light reflection wall surface into a conical surface and adjusting the angle formed by the cone surface and the normal of the light irradiation surface of the LED mounting substrate, it is possible to make the light reflected by the light reflection wall surface have an arbitrary light distribution Become. Further, by setting the axis of the cone forming the conical surface in a predetermined direction, it is possible to irradiate light in the predetermined direction.

  (5) The light reflecting wall surface provided in the light reflector according to the present invention may be an elliptical surface. By arranging the light reflecting wall surface as an elliptical surface and disposing the LED element as the light source at the first focal point of the elliptical surface, it becomes possible to concentrate and reflect the light to the second focal point of the elliptical surface. Moreover, it becomes possible to irradiate light in a predetermined direction by tilting the symmetry axis of the three-dimensional space defined by the ellipsoidal surface in a predetermined direction.

  (6) Moreover, the parabolic surface may be sufficient as the light reflection wall surface with which the light reflector which concerns on this invention is provided. By arranging the light reflecting wall surface as a paraboloid and disposing the LED element as a light source at the focal point of the paraboloid, parallel light can be reflected from the light reflector. Moreover, it becomes possible to irradiate light in a predetermined direction by tilting the symmetry axis of the three-dimensional space defined by the paraboloid in a predetermined direction.

  (7) The light reflecting wall surface provided in the light reflector according to the present invention may be a hyperboloid. By arranging the light reflecting wall surface as a hyperboloid and arranging the LED element as the light source at the focal point of the hyperboloid, it becomes possible to diffuse light over a wider range than when there is no light reflector. Moreover, it becomes possible to irradiate light in a predetermined direction by directing the symmetry axis of the three-dimensional space defined by the hyperboloid in a predetermined direction.

  According to the present invention, in an LED lighting apparatus in which a plurality of LED elements are arranged, even when desired light reflection characteristics are different for each LED element, and when light reflection characteristics for each LED element are individually changed. In addition, it is possible to provide an LED lighting apparatus in which light reflectors having different light reflection characteristics can be individually mounted for each LED element while reducing the manufacturing burden.

The perspective view of LED lighting fixture 10 concerning an example The top view of LED lighting fixture 10 concerning an example Sectional drawing of the LED lighting fixture 10 which concerns on an Example Cross-sectional view of mounting substrate 11 Cross-sectional view of LED mounting board 15 Sectional view of the light reflecting substrate 14 Cross section of the light reflector 18 Sectional view of the light reflector support substrate 19 Sectional view of the concentrating light reflector 18a Sectional view of the narrow-angle light reflector 18b Cross-sectional view of a wide-angle light reflector 18c Cross-sectional view of the lateral illumination type light reflector 18d The figure which shows the mode of the light irradiation by LED lighting fixture 24 The figure which shows the mode of the light irradiation by LED lighting fixture 25 The figure which shows the mode of the light irradiation by LED lighting fixture 26

  Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a perspective view of an LED lighting fixture 10 according to an embodiment of the present invention, FIG. 2 is a plan view of the LED lighting fixture 10 shown as a perspective view in FIG. 1, and FIG. 3 is an LED lighting shown as a perspective view in FIG. 2 is a cross-sectional view of the instrument 10. FIG.

  As shown in FIGS. 1 to 3, the LED lighting device 10 according to the embodiment includes a light emitting substrate 11, a housing 12, and a cover 13 made of a transparent resin or the like. The LED elements 16 are mounted on the light emitting substrate 11 in a 5 × 5 matrix. The housing 12 includes a heat radiation fin (not shown) for releasing heat generated from the light emitting substrate 11, a power supply circuit (not shown) for supplying power to the light emitting substrate 11, and the like.

  The mounting substrate 11 includes an LED mounting substrate 15 and a light reflecting substrate 14 as shown in a sectional view in FIG. As will be described later with reference to FIG. 5, the LED elements 16 are mounted on the wiring board 17 in a 5 × 5 matrix form on the LED mounting board 15 to form a circuit that can be electrically controlled to be connected. Has been made. Further, as will be described later with reference to FIG. 6, the light reflecting substrate 14 includes an opening 19a at a position where the LED element 16 is mounted, and the LED mounting is performed such that the LED element 16 is disposed in the opening 19a. The substrate 15 is stacked and attached. The LED mounting substrate 15 and the light reflecting substrate 14 are fixed using screws or the like, or sealed and fixed by a resin member such as the cover 13. Moreover, about each component which comprises the LED lighting fixture 10, a moisture-proof and drip-proof effect can be show | played.

  FIG. 5 shows a cross-sectional view of the LED mounting substrate 15. The LED elements 16 are mounted on the LED mounting board 15 in a 5 × 5 matrix, and a total of 25 LED elements 16 and a wiring board 17 are provided. Here, the LED mounting substrate 15 has been described as including 25 LED elements 16 mounted in a 5 × 5 matrix, but the LED elements mounted according to the specifications of the LED lighting apparatus 10 It goes without saying that the ratio of the number of 16 and the number of LED elements 16 arranged in a matrix can be freely selected. Moreover, although the arrangement interval between the LED elements 16 mounted in a matrix on the LED mounting substrate 15 is substantially equal, it is possible to appropriately change the arrangement interval according to the specifications of the lighting fixture. Needless to say. Moreover, the LED element 16 may be mounted by other mounting patterns, such as a concentric circle. Each LED element 16 is supplied with power from the housing 12 through the wiring board 17 and emits light.

  FIG. 6 shows a cross-sectional view of the light reflecting substrate 14. The light reflecting substrate 14 includes a light reflector 18 and a light reflector supporting substrate 19. The light reflector 18 is a member having a hollow donut shape. The inner surface of the donut shape has a predetermined angle, and the surface is processed with good light reflectance. The angle of the inner surface is provided in order to reflect light from the LED element 16 in a desired direction. Thereby, the light radiate | emitted in the direction which does not contribute to an illumination characteristic as the LED lighting fixture 10 from the LED element 16 can be reflected in a desired direction, and the light irradiation characteristic of the LED lighting fixture 10 can be made into a desired characteristic. it can. It has the function of reflecting in the direction it has.

  The light reflector support substrate 19 includes an opening 19 a at a position corresponding to the mounting position of the LED element 16 mounted on the LED mounting substrate 15. In the opening 19a, the light reflector 18 is fitted and fitted, or when it is screwed, it is screwed and attached. Note that the opening 19a may have a polygonal shape such as a circle or a rectangle depending on the shape of the light reflector 18. In this case, if the light reflector 18 has a donut shape and the angle of the inner surface and the light reflectance are in a desired state, the light reflector 18 has a circular shape, a rectangular shape or other polygonal shape. It is also possible. The light reflector 18 is attached to the opening 19 a of the light reflector support substrate 19 to constitute the light reflection substrate 14.

  FIG. 7 shows an example of the light reflector 18. The light reflector 18 is made of resin or metal. The inner surface of the light reflector 18 is coated with a member having a good light reflectivity in order to improve the light reflectivity, thereby improving the reflection efficiency of the light emitted from the LED element 16. The outer surface of the light reflector 18 has the same shape as the cylindrical outer surface or the polygonal outer surface, and is formed in accordance with the shape of the opening 19 a of the light reflector support substrate 19. Moreover, it is also possible to make the inner side surface exhibiting a light reflection function into a circular ring shape or a polygonal ring shape such as a rectangular shape while making the outer side surface cylindrical. Thereby, it can also mount | wear with the opening part 19a of the light reflector support substrate 19 by fitting or screwing. In FIG. 7, an example is merely illustrated as the inner surface of the light reflector 18, but a plurality of types of light reflectors 18 having different light reflection characteristics such as the shape of the inner surface of the light reflector 18 and light reflection efficiency are provided. I can leave. Since the light reflector 18 is individually fixed to the opening 19a of the light reflector support substrate 19, the light reflector 18 has different light reflection characteristics depending on the position of the opening 19a of the light reflector support substrate 19 in the LED lighting fixture 10. The LED lighting fixture 10 having various lighting characteristics can be configured as the LED lighting fixture 10 by mounting the light reflector 18. Here, as the light reflection characteristics, for example, it is conceivable that the light reflection direction and reflectivity are characteristics having directivity, anisotropy, and localization in the light irradiation direction. Specifically, it will be described later with reference to FIGS.

  FIG. 8 shows the light reflector support substrate 19. The light reflector support substrate 19 is made of resin or metal. When the light reflector support substrate 19 is placed on the LED mounting substrate 15, the light reflector support substrate 19 includes an opening 19 a depending on the location where the LED element 16 is located. The shape of the opening 19a is a polygonal shape such as a circular shape or a quadrangular shape.

  Here, when anisotropy is required for the light reflection characteristics of the light reflector 18, the light reflection wall surface, which is the inner surface of the light reflector 18, is formed asymmetrically with respect to the central axis, such as shape and light reflectance. May be. For example, this is a case of a lateral emission type light reflector 18d described later in FIG. When the light reflector 18d is fitted and attached to the opening 19a of the light reflector support substrate 19, if the opening 19a and the outer surface of the light reflector 18d are circular, the light reflector 18d is circular from the fitted position. There is a possibility that positional deviation occurs in the circumferential direction. In order to prevent this, it is attached by screwing instead of fitting, and the shape of the outer surface of the opening 19a and the light reflector 18d is a shape that does not rotate with respect to the central axis, such as a polygonal shape or an elliptical shape. It is conceivable to cope with this. Further, it is possible to cope with this by providing a notch portion on one side of the opening 19a and the light reflector 18d and a projecting portion fitted to the notch portion on the other side so as to prevent circumferential rotation displacement. . Thereby, positioning at the time of fitting can be ensured, and subsequent positional deviation can be prevented.

  9 to 12 show light reflectors 18a to 18d as examples of the light reflector. The light emitted from the LED element 16 is emitted radially. In general, the intensity of light in the normal direction from the LED element 16 is maximum with respect to the mounting surface of the LED mounting substrate 15, and the intensity decreases as the angle formed with the normal in the light emission direction increases. It has the characteristic of In the present embodiment, among the light emitted from the LED element 16, light having an angle formed between the emission direction and the normal line is reflected by the light reflectors 18a to 18d. And it becomes possible to control the reflection direction of light according to the shape of the inner surface of the light reflectors 18a to 18d.

  The light reflector 18a shown in FIG. 9 has a condensing type configuration. The shape of the light reflecting wall surface constituted by the inner side surface is a parabolic shape or an elliptical shape. In the case of an elliptical surface, it is possible to condense light to the second focal point of the elliptical surface by placing the LED element 16 at the first focal point of the elliptical surface.

  Although not shown, when the shape of the light reflecting wall formed by the inner surface is a parabolic surface, the LED element 16 as a light source is disposed at the focal point of the parabolic surface, so that the light reflector 18a is parallel to the light reflector 18a. It becomes possible to reflect light.

  Here, it is possible to irradiate light in a predetermined direction by tilting the symmetry axis of the three-dimensional space defined by the paraboloidal or elliptical inner surface in a predetermined direction.

  The light reflector 18b shown in FIG. 10 has a narrow-angle configuration. The shape of the light reflecting wall surface constituted by the inner side surface is a planar shape constituting the side surface of the polygonal pyramid or a curved surface shape constituting the side surface of the cone, and the angle formed between the normal to the LED mounting substrate 15 and the light reflecting wall surface is narrow. It is a horn. The light emitted from the LED element 16 and the light reflected by the light reflector 18b can have a light distribution narrower than that of the light reflector 18c described later. As an angle formed by the normal to the LED mounting substrate 15 and the light reflection wall surface, for example, about 5 degrees is conceivable. Compared with the wide-angle light reflector 18c, the directivity of light irradiation is improved, and light can be delivered further.

  The light reflector 18c shown in FIG. 11 has a wide-angle configuration. The shape of the light reflecting wall surface constituted by the inner side surface is a planar shape constituting the side surface of the polygonal pyramid or a curved surface shape constituting the side surface of the cone, as in the case of the narrow angle type (FIG. 10). In the wide angle type, the angle formed between the normal to the LED mounting substrate 15 and the light reflecting wall surface is a wide angle. The light emitted from the LED element 16 and the light reflected by the light reflector 18c can have a wider light distribution than the light reflector 18b. As an angle formed between the normal line to the LED mounting substrate 15 and the light reflection wall surface, for example, about 20 degrees is conceivable. Compared with the narrow-angle light reflector 18b, the directivity is loose and light is irradiated at a wide angle, so that the periphery of the LED lighting apparatus 10 can be illuminated uniformly.

  Here, it is possible to irradiate light in a predetermined direction by setting the axis of the polygonal cone or the cone in a predetermined direction.

  The light reflector 18d shown in FIG. 12 has a lateral illumination type configuration. The shape of the light reflecting wall surface constituted by the inner side surface is asymmetrical on the left and right. That is, the height of the wall surface is lowered in the direction in which light is desired to be emitted so that light emission and reflection are not blocked. The wall surface is raised in the direction opposite to the direction of irradiation. The angle formed by the normal to the LED mounting substrate 15 and the light reflecting wall surface having a high wall surface is opposite to that of the light reflectors 18b and 18c. That is, the light reflecting wall surface is extended toward the normal direction, and the light reflecting wall surface or an extended surface thereof is formed to cover the LED element 16. Thereby, the light radiate | emitted from the LED element 16 is reflected toward the horizontal direction which wants to irradiate light effectively. The light emitted from the LED element 16 and the light reflected by the light reflector 18c can be concentrated in a desired lateral direction. The light emitted from the LED element 16 mounted on the end of the LED lighting device 10 can be reflected in the direction of the center of irradiation by the LED lighting device 10 or the opposite side, or in other directions. It becomes possible for the lighting fixture 10 to have various illumination characteristics of light.

  Although not shown in the figure, when the shape of the light reflecting wall constituted by the inner surface is a hyperboloid, an LED element 16 serving as a light source is disposed at the focal point of the hyperboloid so that parallel light is emitted from the light reflector. It becomes possible to reflect. Moreover, it becomes possible to irradiate light in a predetermined direction by directing the symmetry axis of the three-dimensional space defined by the hyperboloid in a predetermined direction.

  FIGS. 13 to 15 illustrate LED lighting fixtures 24 to 26 as an example.

  In the LED lighting apparatus 24 of FIG. 13, all the light reflectors to be mounted have the same shape. For example, a wide-angle light reflector 18c (FIG. 11) is attached. Thereby, the light emitted from the individual LED elements 16 is reflected with the same light reflection characteristics by the respective light reflectors. Thereby, the LED lighting fixture 24 will have a uniform irradiation characteristic, and it can be set as uniform illumination according to the arrangement position of the LED element 16 mounted. If it is used for street lamps, it can be used to illuminate the ground surface evenly.

  The LED lighting fixture 25 of FIG. 14 mounts the side-emission type light reflector 18d on a part of the LED lighting fixture 25 among the light reflectors attached to the LED lighting fixture 24 (FIG. 13). Thereby, it can be set as equal illumination similarly to the LED lighting fixture 24, and the illumination range can be further expanded in the lateral direction. If used in a gas station or other stores, the illumination can be seen from a distance, and the effect of being recognized as a store quickly can be achieved.

  The LED lighting fixture 26 of FIG. 15 is equipped with light reflectors 18b having different directivities. It is configured to illuminate an object to be illuminated whose distance from the LED lighting fixture 26 differs depending on the irradiation place, such as having a large area. Using the narrow-angle light reflector 18b, the directivity of the light reflector 18b is increased as the distance is longer, according to the distance between the LED lighting fixture 26 and the object to be illuminated. A light reflector 18b that irradiates a short distance, a light reflector 18b that irradiates a medium distance, and a light reflector 18b that irradiates a long distance, and then gradually increases the directivity of the light reflector 18b, thereby illuminating a large area. Objects can be illuminated evenly. In this case, a wide-angle light reflector 18c can be used instead of the narrow-angle light reflector 18b as a light reflector that irradiates a short distance. When illuminating a large area illumination object such as an advertising tower or a signboard, the whole can be illuminated uniformly.

  As described above in detail, according to the present embodiment, the LED lighting apparatus 10 includes the light reflectors 18 or 18a to 18d that reflect the light emitted from the LED element 16, and the light reflectors 18 or 18a to 18d. And a light reflector support substrate 19 on which the light reflector is mounted. Thereby, the light reflector 18 or 18a thru | or 18d from which a light reflection characteristic differs for every LED element 16 mounted in the LED mounting board | substrate 10 can be arrange | positioned easily. Even when there are a wide variety of combinations of light reflection characteristics required for the individual LED elements 16 for each lighting specification of the LED lighting apparatus 10, it is only necessary to provide the light reflectors 18 or 18a to 18d according to the light reflection characteristics. . If the light reflectors related to all the LED elements included in the LED lighting apparatus are members that are integrally molded, the number of light reflector combinations must be provided. It is possible to respond flexibly to required specifications. It is possible to simplify the management in manufacturing by reducing the number of inventory members when manufacturing the LED lighting device 10, and it is possible to reduce the manufacturing cost and the time required for manufacturing.

  Further, since the light reflectors 18 or 18a to 18d corresponding to the individual LED elements 16, the molding process is facilitated, and the light reflector having the light reflection characteristics with high accuracy can be formed.

  Further, by changing the type of the light reflector 18 or 18a to 18d attached to the opening 19a of the light reflector support substrate 19 according to the desired light reflection characteristic, the light reflection characteristic of the LED lighting apparatus 10 can be easily achieved. It becomes possible to change to.

  Further, if the light reflector 18 or 18a to 18d, the light reflector support substrate 19 and the LED mounting substrate 15 are sealed with a transparent resin, each component can be fixed, and moisture and drip-proof processing can be performed. can do.

  Further, as exemplified in the light reflectors 18a to 18d, the light reflecting wall surface which is the inner surface of the light reflectors 18a to 18d can be shaped according to the light reflection characteristics.

  For example, the light reflecting wall surface is a flat surface, and the flat surface is formed with a predetermined angle with respect to the normal line of the light irradiation surface of the LED mounting substrate 15 so that light is reflected in a predetermined direction according to the forming angle. It becomes possible.

  Further, the light reflecting wall surface is a conical surface, and the light reflected by the light reflecting wall surface is made to have an arbitrary light distribution by adjusting the angle formed between the conical surface and the normal line of the light emitting surface of the LED mounting substrate 15. Is possible.

  Further, by arranging the light reflecting wall surface to be an elliptical surface and disposing the LED element 16 as a light source at the first focal point of the elliptical surface, it becomes possible to concentrate and reflect the light to the second focal point of the elliptical surface.

  Although not shown in the figure, parallel light can be reflected from the light reflector by arranging the light reflecting wall as a paraboloid and disposing the LED element 16 as a light source at the focal point of the paraboloid. .

  Although not shown, the light reflecting wall surface is a hyperboloid, and the LED element 16 serving as the light source is arranged at the focal point of the hyperboloid, thereby diffusing light over a wider range than when there is no light reflector. It becomes possible.

  Moreover, it becomes possible to irradiate light in a predetermined direction by directing a symmetry axis of a three-dimensional space defined by a plane, a conical surface, an ellipsoid, a paraboloid, or a hyperboloid in a predetermined direction.

  Needless to say, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention.

  For example, in the LED lighting apparatus 10 illustrated in the present embodiment, the case where the LED elements 16 are arranged in a 5 × 5 matrix is described as an example, but the present invention is not limited to this. Needless to say, the number of the vertical and horizontal LED elements 16 when arranged in a matrix is not limited to five. The number of vertical and horizontal arrangements does not necessarily have to be the same, and may be rectangular shapes with different numbers of vertical and horizontal arrangements. In addition, the arrangement shape of the LED elements 16 can be freely changed. Arbitrary shapes other than a circular shape and an elliptical shape may be sufficient.

  Moreover, it is possible to freely set the shape of the light reflecting wall surface of the light reflector. Needless to say, not only the shape of the light reflecting wall surface but also the partial coating of the coating agent for adjusting the light reflectance can be freely adjusted.

  In this embodiment, the LED element is described as an example of the light source. However, in the present invention, the light source is not limited to the LED element. Various lamps, light emitting components such as EL elements, and the like can be arranged.

DESCRIPTION OF SYMBOLS 10 LED lighting fixture 11 Light emission board | substrate 12 Case 13 Cover 15 LED mounting board 14 Light reflection board 16 LED element 17 Wiring board 18, 18a thru | or 18d Light reflector 19 Light reflector support board 19a Opening part 24 thru | or 26 LED lighting fixture

Claims (8)

An LED element;
An LED mounting substrate on which a plurality of the LED elements are mounted;
A light reflector having desired light reflection characteristics and reflecting light generated from the LED element;
A light reflector support substrate that is mounted on the LED mounting substrate and has an opening to which the light reflector is mounted at a position corresponding to the mounting position of the LED element;
An LED lighting apparatus comprising:   The LED lighting apparatus according to claim 1, wherein the light reflector, the light reflector support substrate, and the LED mounting substrate are sealed with a transparent resin.   The said light reflector is provided with the light reflection wall surface of the shape according to the light reflection characteristic, The LED lighting fixture of Claim 1 or 2 characterized by the above-mentioned.   The LED lighting apparatus according to claim 1, wherein the light reflecting wall surface of the light reflector is a flat surface.   The LED lighting apparatus according to claim 1, wherein the light reflecting wall surface of the light reflector is a conical surface.   The LED lighting apparatus according to claim 1, wherein the light reflecting wall surface of the light reflector is an ellipsoid.   4. The LED lighting apparatus according to claim 1, wherein the light reflecting wall surface of the light reflector is a paraboloid. The LED lighting apparatus according to claim 1, wherein the light reflecting wall surface of the light reflector is a hyperboloid.

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