JP2007180288A - Light emitting device and illuminator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emitting device ensuring stabilized luminescent color, and to provide an illuminator. <P>SOLUTION: The light emitting device comprises a substrate 11, a light emitting diode chip 12 arranged on the substrate, a phosphor layer 13 provided oppositely to the light emitting diode chip and containing phosphor which emits different light by the light from the light emitting diode chip, a lens body 15 passing the light radiated from the light emitting diode chip and the phosphor layer, and a light diffusion means 16 provided between the lens body and the phosphor layer. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a light emitting device and a lighting device using a light emitting diode as a light source.

  In recent years, light-emitting devices that use light-emitting diodes that have a long lifetime and low power consumption as light sources instead of filament bulbs and fluorescent lamps have been adopted as light sources for various lighting devices.

  In order to obtain a white light source by a light emitting device using these light emitting diodes as a light source, the following method is adopted.

  A system that obtains white light by combining a blue light-emitting diode and its complementary yellow phosphor.

  A system that obtains white light by combining red, green, and blue light emitting diodes, which are the three primary colors of light.

  In addition, a system that obtains white light by combining red, green, and blue phosphors with purple or ultraviolet light emitting diodes.

In a light emitting device that obtains white light by these methods, for example, as shown in Patent Document 1, a lens is provided to focus light from a light emitting diode in a desired direction.
Japanese Patent Laid-Open No. 11-163212

  As a method for obtaining a white light source, the above-described method is adopted. For example, in a method of obtaining white light by combining a blue light emitting diode and a yellow phosphor that is a complementary color thereof, a general diagram is used. 7 (a), a blue light-emitting diode chip 51 is disposed at the center of the circular recess 50a of the base body 50, and a yellow phosphor layer 52 is provided opposite to the top surface of the chip. Is emitted through a single lens 53.

  However, when light is extracted using a lens, there is a problem that a part of blue is present on the irradiation surface 54 and the light is not completely white.

  In particular, when illuminated from below by the light emitting device composed of the blue light emitting diode chip 51, the yellow phosphor layer 52 and the single lens 53 configured as described above, as shown in FIG. A part of the blue region B exists, and the illumination surface is unevenly colored.

  This is because the configuration of the light source portion of the substrate, that is, the image shape in which the blue light emitting diode chip 51 is provided at the center of the yellow phosphor layer 52, as shown in the projection view X of the irradiation surface 54 in FIG. However, it was found that the light is projected onto the irradiation surface 54 through the lens 53 as it is, and that blue is partially present.

  In particular, this phenomenon occurs when the size of the blue region by the blue light emitting diode chip 51 and the size of the yellow region by the yellow phosphor layer 52 are different as shown in the plan view of the substrate 50 in FIG. In this case, when the light emitting area B of the blue light emitting diode chip is different from the light emitting area Y of the yellow phosphor layer, if one lens or a total reflection type lens is used, the colors are separated and appear more noticeably and the color unevenness. It was found that the irradiated surface did not become white.

  The lens disclosed in Japanese Patent Application Laid-Open No. H10-133707 has improved light distribution characteristics and light extraction efficiency, and has not improved color unevenness.

  For this reason, in a light-emitting device using such a light-emitting diode as a light-emitting source, how to obtain stable white light that does not cause color unevenness is an important issue.

  This is another method for obtaining white color, that is, a method of obtaining white light by combining a red light emitting diode, a green light emitting diode and a blue light emitting diode, and further, red, green and blue phosphors in a purple or ultraviolet light emitting diode. Even in the method of obtaining white light by combining the same, there are similar problems to some extent, and the same problem also occurs when obtaining visible light not limited to white but having a desired complementary color relationship. .

  The present invention has been made in view of the above problems and problems, and an object of the present invention is to provide a light emitting device and a lighting device that can obtain a stable emission color.

  The light-emitting device according to the first aspect of the present invention includes a base; a light-emitting diode chip disposed on the base; and a phosphor that is provided facing the light-emitting diode chip and emits different light depending on the light of the light-emitting diode chip. A phosphor layer comprising: a light emitting diode chip; a lens body that allows light emitted from the phosphor layer to pass through; and a light diffusion means provided between the lens body and the phosphor layer. Features.

  According to the present invention, the light diffusing means provided between the lens body and the phosphor layer does not separate the color of the irradiated surface even if the light emitting diode chip and the phosphor layer have different color area sizes. Thus, a light emitting device capable of suppressing color unevenness and obtaining a stable emission color is realized.

  In the present invention, the substrate is made of, for example, a synthetic resin having heat resistance, light resistance, and electrical insulation, such as PBT (polybutylene terephthalate), and has a recess for disposing the light emitting diode chip and the phosphor layer. It is allowed to be configured as a substrate having.

  As the light emitting diode chip, one having a desired light emitting color is used. For example, a blue light emitting type, a violet or ultraviolet light emitting type, or a light emitting diode chip such as a red light emitting type or a green light emitting type can be used.

  The phosphor layer is a means for obtaining a desired emission color by being excited by light emitted from the light emitting diode chip, and includes a phosphor that emits different light depending on the light of the light emitting diode chip, and is emitted from the light emitting diode chip. It is provided to face the light emitting diode chip so that the light to be transmitted can pass through. For example, the light emitting diode chip may be embedded in the phosphor layer so as to be opposed to each other, or the phosphor layer may be formed in a multilayer so as to be opposed to the front surface of the light emitting diode chip.

  For example, in order to obtain a white emission color, a blue light emitting diode chip is disposed in the center of the recess, and a yellow phosphor layer is disposed in front of the blue light emitting diode chip. The method in which the phosphor layer has a light emitting area larger than that of the light emitting diode chip further exhibits the effect of suppressing color unevenness according to the present invention. However, the present invention is not limited to this, and is the three primary colors of light. Red light emitting diode chip, green light emitting diode chip and blue light emitting diode chip are arranged in the recess to obtain white color, and further, red, green and blue phosphors are arranged in the recess in the purple or ultraviolet light emitting diode chip. Thus, a method for obtaining white is also acceptable as an object of the present invention.

  The main purpose of the light-emitting diode chip and the phosphor layer is to obtain white light, but it is not limited to pure white, for example, all white light including daylight color and light bulb color configured to enhance color rendering. System colors are acceptable. Furthermore, it is allowed to obtain visible light that is not limited to a complementary color relationship as desired, not limited to white color.

  The lens body is preferably a convex lens made of a synthetic resin such as a transparent acrylic resin or transparent glass, but a plurality of concave lenses or two convex lenses may be combined to obtain various light distributions.

  The lens body is integrally formed with a concave portion and a reflecting portion for housing a part or the whole of the substrate on which the light emitting diode chip and the phosphor layer are disposed, and the light emitted from the light emitting diode chip and the phosphor layer is recessed. The light may be taken in from the light and reflected by the reflecting portion to focus the light in a desired direction.

  The light diffusing means is provided between the lens body and the phosphor layer with a light diffusing means made of a transparent or translucent translucent material such as a glass body subjected to light diffusing treatment, which is separate from the lens body. May be. Furthermore, the light diffusion unit may be directly formed on the surface of the lens body on the phosphor layer side to form a light diffusion unit integrally with the lens body.

  The light diffusing means may be a transparent glass body or the like, or may be formed by cutting the surface of the lens body to form fine irregularities, or by spraying fine glass particles, etc. It is not limited to. Further, a translucent constituent member such as ground glass may be a means for diffusing light.

  A light emitting device according to a second aspect of the present invention comprises: a base; a light emitting diode chip disposed on the base; and a phosphor that is provided opposite to the light emitting diode chip and emits different light depending on the light of the light emitting diode chip. A phosphor layer having a light emitting area larger than that of the light emitting diode chip; a lens body that allows light emitted from the light emitting diode chip and the phosphor layer to pass; and provided between the lens body and the phosphor layer And a light diffusing means.

  The second aspect of the present invention is different from the first aspect of the present invention in that a phosphor layer having a light emitting area larger than that of the light emitting diode chip is provided, and other configurations are common. Yes.

  According to the present invention, the light diffusion means provided between the lens body and the phosphor layer includes the phosphor layer having a light emitting area larger than that of the light emitting diode chip, and the color of the light emitting diode chip and the phosphor layer is increased. Even if the region sizes are different, the light emitting device capable of suppressing the color unevenness and obtaining a stable emission color without separating the color of the irradiated surface is realized.

  A light emitting device according to a third aspect of the present invention is the light emitting device according to claim 1 or 2, wherein the light diffusing means is formed integrally with a lens body.

  A light emitting device according to a fourth aspect of the present invention is the light emitting device according to any one of claims 1 to 3, wherein the light emitting diode chip is a blue light emitting diode chip, and the phosphor layer has a yellow phosphor. It is characterized by being configured.

  In the present invention, the blue light-emitting diode chip and the yellow phosphor are not limited to those that emit strictly blue or yellow, and those that emit light at a wavelength near blue or near yellow are also acceptable.

  According to the present invention, the light diffusing means provided between the lens body and the phosphor layer allows the irradiation surface of the phosphor layer having the blue light emitting diode chip and the yellow phosphor to have different color area sizes. A light-emitting device capable of suppressing color unevenness and obtaining a stable white color or a white color without realizing color separation is realized.

  The illuminating device of this invention is equipped with an illuminating device main body; and the light-emitting device as described in any one of Claims 1 thru | or 4 arrange | positioned at the illuminating device main body.

  In the present invention, even if the lighting device is composed of a single light-emitting device as described above, a large number of light-emitting devices are arranged in a straight line or a matrix to form a line or surface module type lighting device. It may be what you did.

  Furthermore, the application is applied to all lighting devices, for example, various lighting fixtures such as downlights for general lighting, direct ceiling lights, outdoor lighting such as road lighting, tunnel lighting fixtures, floodlights, etc. It can be used for instruments, and various display devices.

  According to the invention of claim 1, the light diffusing means provided between the lens body and the phosphor layer separates the color of the irradiated surface even if the light emitting diode chip and the phosphor layer have different color area sizes. Thus, it is possible to provide a light emitting device capable of suppressing color unevenness and obtaining a stable emission color.

  According to the invention of claim 2, the light diffusing means provided between the lens body and the phosphor layer includes the phosphor layer having a light emitting area larger than that of the light emitting diode chip, and the light emitting diode chip and the phosphor It is possible to provide a light-emitting device capable of suppressing color unevenness and obtaining a stable emission color without separation of the color of the irradiated surface even when the color region sizes of the layers are different.

  According to the invention of claim 3, since the light diffusing means is formed integrally with the lens body, the color of the irradiation surface can be changed even if the color region sizes of the light emitting diode chip and the phosphor layer are different with a simple configuration. It is possible to provide a light-emitting device that can suppress color unevenness and obtain a stable emission color without separation.

  According to invention of Claim 4, even if the color area size of the fluorescent substance layer which has a blue light emitting diode chip and a yellow fluorescent substance differs by the light-diffusion means provided between the lens body and the fluorescent substance layer It is possible to provide a light-emitting device capable of obtaining a stable white color or a white-colored emission color by suppressing color unevenness without separating colors of an irradiation surface.

  According to invention of Claim 5, the illuminating device which can suppress color unevenness and can obtain the stable luminescent color can be provided.

  Hereinafter, embodiments of a light emitting device and a lighting device according to the present invention will be described with reference to the drawings.

  1 to 6 show a light emitting device and a lighting device according to a first embodiment of the present invention, FIG. 1 shows a schematic configuration of the light emitting device, (a) is an explanatory view in side view, and (b) is FIG. 2A is a projection view on the irradiation surface, FIG. 2 shows a substrate of the light emitting device, FIG. 2A is a plan view, FIG. 3B is a longitudinal sectional view partially cut away, and FIG. 3 is a lens body of the light emitting device. (A) is a plan view, (b) is a longitudinal sectional view, (c) is a bottom view, (d) is a longitudinal sectional view of a modification, FIG. 4 is a longitudinal sectional view of a light emitting device, and FIG. 5 is an illumination. FIG. 6A is a plan view showing a line module type lighting device, FIG. 6B is a plan view showing a surface module type lighting device, and FIG. 6 is a schematic side view showing a modification of the light emitting device. It is explanatory drawing.

  The present embodiment is configured as a light emitting device using a light emitting diode which is applied to a line module type lighting device that performs indoor lighting or the like.

  As shown in FIG. 1, a light emitting device 10 includes a base body 11, a light emitting diode chip (hereinafter referred to as “LED chip”) 12, a phosphor layer 13, a translucent portion 14 provided on the base body, a lens body 15, and light diffusion. Consists of means 16.

  As shown in FIG. 2, the base 11 is made of a synthetic resin having heat resistance, light resistance, and electrical insulation, such as PBT (polybutylene terephthalate), PPA (polyphthalamide), and PC (polycarbonate). An inverted conical concave portion 11a that gradually spreads outward is formed, and a lens support portion 11b that is formed integrally with the periphery of the concave portion is formed.

  The recess 11a forms a reverse-tapered reflecting wall on the inner peripheral surface, and forms an opening 11c that constitutes the translucent part 14 of the present invention at the opening end.

  The base 11 is disposed on the substrate 11f via the electrical insulating layer 11d and the lead frame 11e.

  The LED chip 12 is made of, for example, a gallium nitride (GaN) -based semiconductor that generates blue light, and is mounted on a lead frame 11e positioned on the bottom surface of the recess 11a of the base, and is provided with predetermined electrical wiring.

  The LED chip 12 is embedded in the sealing resin 20 filled in the recess 11a.

  That is, the sealing resin 20 is made of a thermosetting resin such as a translucent silicone resin or an epoxy resin, and is filled in the concave portion 11a to be composed of two layers of the diffusion layer 20a and the phosphor layer 13. .

  The diffusion layer 20a includes, for example, a sealing resin in which 3 to 5% by mass of a diffusing agent composed of metal oxides such as alumina, titania, calcia, silica, and yttria and fine particles of these simple metals are added. Is filled in the recess 11a so as to be embedded therein and thermally cured. The surface of the diffusion layer 20a is formed so that the center is recessed by about 1 to 5 μm, for example.

  In addition, you may comprise without providing said diffusion layer 20a.

  The phosphor layer 13 is formed by thermally curing the diffusion layer 20a, filling the recess 11a with a sealing resin to which a required amount of a yellow light-emitting phosphor is added, and thermosetting the resin.

  Thereby, the phosphor layer 13 is provided to face the LED chip 12 and is excited by blue light emitted from the LED chip to generate yellow light.

  The light source portion of the base configured as described above has a shape in which the blue LED chip 12 is provided at the center of the yellow phosphor layer 13 as shown in FIG. The size of the blue region due to the yellow phosphor layer 13 is different from the size of the yellow region due to the yellow phosphor layer 13, in other words, the light emission area B of the blue LED chip 12 and the light emission area Y of the yellow phosphor layer 13 are different. It has a larger light emitting area.

  The lens body 15 is provided so as to face the light transmitting portion 14 of the base body 11, in other words, the phosphor layer 13, and in detail, for example, as shown in FIGS. The lens body 15 is made of resin and has a convex lens portion 15a, a concave portion 15b, and a reflective portion 15c, and is fitted to the lens support portion 11b of the base 11, so that the lens body 15 is attached to the light transmitting portion 14, that is, the phosphor layer 13. Facing and supported close to the LED chip 12 and the phosphor layer 13 (FIG. 4).

  The convex lens portion 15 a is located at the center of the lens body 15, and light with a relatively narrow emission angle in the optical axis direction from the LED chip 12 enters.

  The concave portion 15b has a cylindrical shape whose inner surface is a rotation approximate paraboloid, the upper end is continuous with the peripheral portion of the convex lens portion 15a, and light having a larger emission angle than the light incident on the convex lens portion 15a is incident thereon.

  The reflection part 15c is formed so that the light which entered into the lens body 15 from the recessed part 15b may be reflected, and is arrange | positioned around the periphery of the convex lens part 15a. The reflection part 15c is a total reflection type, and reflected light is radiated | emitted ahead. Furthermore, the upper surface of the lens body 15 is formed flat.

  Reference numeral 16 denotes a light diffusing means, which is made of a glass body that has been subjected to a light diffusing process and is provided separately from the lens body 15, and is provided between the lens body 15 and the phosphor layer 13 of the substrate 11. The light diffusing means 16 is preferably provided as close to the substrate 11 as possible.

 More specifically, as shown in FIGS. 3A to 3C, the glass body constituting the light diffusing means 16 is opposed to the convex lens portion 15 a in the concave portion 15 b forming the cylindrical shape of the lens body 15. And it fits and supports as close as possible to the opening end of the recess 15b.

  The glass body constituting the light diffusing means 16 is formed by cutting one surface or both surfaces thereof to form fine irregularities and performing a light diffusion treatment.

  As shown in FIG. 4, the lens body 15 configured as described above is fitted into and supported by the lens support portion 11 b of the base body 11 to constitute the light emitting device 10.

  As a result, the light diffusing means 16 is disposed close to the phosphor layer 13 of the base 11.

  Next, the operation of the light emitting device configured as described above will be described.

  First, a predetermined direct current is supplied to the light emitting device 10. As a result, the LED chip 12 emits blue light, and this blue light is appropriately diffused by the diffusion layer 20a, enters the phosphor layer 13, excites the yellow phosphor, and emits yellow light.

  As shown in FIG. 1, these blue light and yellow light are emitted from the light transmitting portion 14 of the base 11 and are incident on the glass body constituting the light diffusing means 16 provided facing the light transmitting portion.

  The glass body constituting the light diffusing means 16 is subjected to uneven diffusion treatment facing the phosphor layer 13, and blue light and yellow light are respectively diffused and mixed to separate blue light and yellow light. White light is radiated without.

  At this time, the glass body constituting the light diffusing means 16 is configured to sufficiently capture the blue light and yellow light emitted from the light transmitting portion 14 without loss, so that the light output is substantially reduced. There is no.

  The light that has passed through the glass body constituting the diffusing unit 16 enters the lens body 15 and is subjected to light distribution control in a predetermined direction to perform desired illumination.

  At this time, as shown in FIG. 1B, the image form X of the light source portion is projected onto the irradiation surface C by the lens body 15.

  However, in this embodiment, the object that the lens body 15 projects as an image is a glass body as the light diffusing means 16 existing in front of the lens body.

  This glass body has been subjected to uneven light diffusion treatment as described above, and blue light and yellow light are each diffused and mixed to emit white light without color separation.

  Since this white light is projected onto the irradiation surface, the blue light and the yellow light are separated from each other as in the conventional case, and color unevenness does not occur and the irradiation surface does not become white. Lighting can be performed.

  Although the light emitting device 10 configured as described above may be used alone to form a point module lighting device, in this embodiment, the light emitting device 10 is mounted on the lighting device main body 30 as shown in FIG. A line module type lighting device 31 was configured by arranging a large number in a straight line.

  These lighting devices have a separate power supply unit, and a predetermined number of line module type lighting devices 31 are connected by an extension cable for connection, for example, linear indoor lighting or system along a train window. Used for kitchen lighting, etc.

  As described above, in this embodiment, the glass body constituting the light diffusing means 16 is formed by cutting one side or both sides to form fine irregularities and performing the light diffusing treatment, but it is made of translucent ground glass. May be. Further, the material may be made of a synthetic resin such as a transparent acrylic resin.

  The light diffusing means 16 made of a glass body is supported by being fitted between the lens body 15 and the phosphor layer 13 of the base body 11, more specifically, in a cylindrical recess 15 b of the lens body 15. As shown in FIG. 3D, the surface of the convex lens portion 15a facing the phosphor layer 13 may be directly subjected to light diffusion processing to form the light diffusion means 16 integrally with the lens body 15.

  Thereby, the glass body which comprises the light-diffusion means 16 of another structure is abbreviate | omitted, and the light-emitting device of a simpler structure can be provided.

  Furthermore, it may be configured such that the light diffusion process is also performed on the inner peripheral surface of the concave part 15b having a cylindrical shape, in succession to the surface subjected to the light diffusion process of the convex lens part 15a.

  Thereby, light having a large incident angle can also be diffused, and color unevenness can be further suppressed.

  Although the lens body 15 is formed of a convex lens, as shown in FIG. 6, it may be formed of a concave lens 15d in which the light diffusing unit 16 is integrally formed by performing light diffusion processing on the light transmitting portion 14 side.

  A large number of light emitting devices 10 are arranged in a straight line to form a line module type lighting device 31. However, as shown in FIG. 5B, a large number of light emitting devices 10 are arranged in a matrix to form a surface module type lighting device. May be.

  As described above, according to the present embodiment, blue light and yellow light are each diffused and mixed on the irradiation surface C, and glass as light diffusing means that emits white light without separating each color. An image of the body 16 is projected.

  For this reason, it is possible to perform illumination that suppresses color unevenness and exhibits a reliable and stable white color without separation of colors, and at the same time, luminance unevenness is reduced and illumination without glare can be performed.

  In particular, even if the phosphor layer 13 having a light emitting area larger than that of the light emitting diode chip 12 is provided, the illumination surface is not separated, and the color unevenness is suppressed and illumination that exhibits a reliable and stable white color is achieved. It is possible to perform illumination at the same time without glare.

  Further, since the light diffusing means 16 and the lens body 15 made of a glass body are configured so as to sufficiently cover both the yellow region Y and the blue region B, the LED chip emitted from the translucent part 14 The blue light from 12 and the yellow light emitted from the phosphor layer 13 can be taken in sufficiently without loss, and color unevenness can be suppressed without reducing the light output.

  Further, the glass body constituting the light diffusing means 16 is fitted and supported in the cylindrical concave portion 15b of the lens body 15 so as to face the convex lens portion 15a and as close as possible to the opening end portion of the concave portion 15b. Thus, the light diffusing means can be reliably supported at a predetermined position with a simple configuration, color unevenness can be suppressed, and desired optical performance can be reliably exhibited.

  Furthermore, if a direct light diffusion process is performed on the surface of the convex lens portion 15a facing the phosphor layer 13, the color unevenness can be suppressed with a simpler configuration and the desired optical performance can be reliably exhibited. it can.

  Since the lighting device is configured by arranging a large number of light emitting devices 10 in a straight line, it is possible to provide a lighting device capable of suppressing color unevenness and obtaining a stable light emitting color, as well as a line module, a surface module, and the like. Thus, it is possible to provide a lighting device applicable to various lighting applications.

  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.

BRIEF DESCRIPTION OF THE DRAWINGS The structure outline | summary of the light-emitting device which is the 1st Embodiment of this invention is shown, (a) is explanatory drawing of a side view, (b) is the projection figure in the irradiation surface of (a). The base material of a light-emitting device is shown similarly, (a) is a top view, (b) is a longitudinal cross-sectional view shown with a part cut away. The lens body of a light-emitting device is similarly shown, (a) is a plan view, (b) is a longitudinal sectional view, (c) is a bottom view, and (d) is a longitudinal sectional view of a modification. Similarly, the longitudinal cross-sectional view of a light-emitting device. Similarly, the illuminating device which is 1st Embodiment is shown, (a) is a top view which shows a line module type illuminating device, (b) is a top view which shows a surface module type illuminating device. Explanatory drawing of the side view which similarly shows the modification of a light-emitting device. The outline of the structure of a conventional light emitting device is shown, (a) is an explanatory view in side view, (b) is a projection view on the irradiation surface of (a), (c) is an explanatory view in plan view of the base, and (d) The projection figure in the irradiation surface at the time of illuminating from the downward direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Light-emitting device 11 Base | substrate 12 Light emitting diode chip 13 Phosphor layer 15 Lens body 16 Light diffusion means

Claims (5)

A substrate;
A light emitting diode chip disposed on the substrate;
A phosphor layer provided opposite to the light emitting diode chip and including a phosphor that emits different light depending on the light of the light emitting diode chip;
A lens body that allows light emitted from the light emitting diode chip and the phosphor layer to pass;
A light diffusing means provided between the lens body and the phosphor layer;
A light-emitting device comprising: A substrate;
A light emitting diode chip disposed on the substrate;
A phosphor layer provided opposite to the light emitting diode chip, including a phosphor that emits different light depending on the light of the light emitting diode chip, and having a light emitting area larger than that of the light emitting diode chip;
A lens body that allows light emitted from the light emitting diode chip and the phosphor layer to pass;
A light diffusing means provided between the lens body and the phosphor layer;
A light-emitting device comprising: The light-emitting device according to claim 1, wherein the light diffusing unit is formed integrally with a lens body. The light emitting device according to any one of claims 1 to 3, wherein the light emitting diode chip is configured by a blue light emitting diode chip, and the phosphor layer is configured by including a yellow phosphor. A lighting device body;
A light emitting device according to any one of claims 1 to 4 disposed in a lighting device body;
An illumination device comprising:

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