JP2016152219A - Light source for lighting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting source for lighting which enables easy change of the appearance only by being attached to a power supply part of a lighting device etc. and achieves high versatility.SOLUTION: A lighting source for lighting includes: a lamp body 100 including a light emitting module 10; a cover 110 which is provided at an exterior side of the lamp body 100 and at a light emission surface side of the light emitting module 10; and a recessed part 71 which is used to adjust a position of the cover 110 relative to the lamp body 100 and provided at the lamp body 100.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an illumination light source.

  Conventionally, semiconductor light emitting devices such as light emitting diodes (LEDs) are expected to serve as light sources for various products because of their small size, high efficiency, and long life.

  For example, the LED is used in an illumination light source such as a bulb-shaped LED lamp (LED bulb) or a straight tube LED lamp, or a lighting fixture installed on a ceiling such as a ceiling light or a downlight. For example, Patent Document 1 discloses a lighting device using a conventional LED.

JP 2014-165021 A

  By the way, in recent years, there is a desire to change the appearance of a downlight or the like. Conventionally, in order to change the appearance, it is necessary to replace the luminaire, and a very complicated operation is required. It is also conceivable to replace only the lamp without replacing the luminaire. In this case, however, usable lamps are limited to those that can be adapted to existing lighting fixtures.

  Accordingly, an object of the present invention is to provide an illumination light source that can be easily changed in appearance only by being attached to a power supply unit such as a lighting fixture, and that is highly versatile.

  In order to achieve the above object, an illumination light source according to an aspect of the present invention includes a lamp body including a light emitting module, a cover provided on the light emitting surface side of the light emitting module, and outside the lamp body. And a recess provided in the lamp body for adjusting the position of the cover with respect to the lamp body.

  An illumination light source according to an aspect of the present invention includes a lamp body including a light emitting module, and a recess provided in the lamp body for adjusting the position of the cover with respect to the lamp body, And provided outside the lamp body and on the light emitting surface side of the light emitting module.

  ADVANTAGE OF THE INVENTION According to this invention, an external appearance can be easily changed only by attaching to electric power feeding parts, such as a lighting fixture, and the highly versatile illumination light source can be provided.

It is a perspective view which shows the external appearance of the lightbulb-shaped lamp which concerns on embodiment. It is a perspective view which shows the external appearance of the lightbulb-shaped lamp which concerns on embodiment. It is a disassembled perspective view of the lightbulb-shaped lamp which concerns on embodiment. It is a figure which shows the cross-sectional outline | summary of the lighting fixture with which the lightbulb-shaped lamp which concerns on embodiment was attached. It is sectional drawing of the lightbulb-shaped lamp which concerns on embodiment. It is sectional drawing of the lightbulb-shaped lamp which concerns on the modification 1 of embodiment. It is sectional drawing of the lightbulb-shaped lamp which concerns on the modification 2 of embodiment.

  Below, the light source for illumination which concerns on embodiment of this invention is demonstrated in detail using drawing. Each of the embodiments described below shows a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangements, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  Each figure is a mimetic diagram and is not necessarily illustrated strictly. Moreover, in each figure, the same code | symbol is attached | subjected about the same structural member. In the following embodiments, expressions such as substantially coincidence or substantially circular are used. For example, the approximate match not only means that they are completely matched, but also means that they are substantially matched, that is, includes an error of about several percent. The same applies to expressions using other “abbreviations”.

  In the following embodiments and modifications thereof, a light bulb shaped lamp (LED light bulb) will be described as an example of an illumination light source.

(Embodiment)
[Overview]
First, the outline | summary of the lighting fixture 200 to which the lightbulb-shaped lamp 1 which concerns on this Embodiment and the lightbulb-shaped lamp 1 is attached is demonstrated using FIG. 1A-FIG.

  1A and 1B are perspective views showing an appearance of a light bulb shaped lamp 1 according to the present embodiment. Specifically, FIG. 1A is a perspective view when the light bulb shaped lamp 1 is viewed from below. FIG. 1B is a perspective view of the light bulb shaped lamp 1 as viewed from above.

  FIG. 2 is an exploded perspective view of the light bulb shaped lamp 1 according to the present embodiment. In FIG. 2, the alternate long and short dash line drawn in the vertical direction on the paper indicates the lamp axis J (center axis) of the light bulb shaped lamp 1. The lamp axis J is an axis that becomes a rotation center when the light bulb shaped lamp 1 is attached to a socket of a lighting fixture. In the present embodiment, the lamp axis J coincides with the rotation axes of the housing 60, the base 80 and the cover 110.

  FIG. 3 is a diagram showing a cross-sectional outline of a lighting fixture 200 to which the light bulb shaped lamp 1 according to the present embodiment is attached. In FIG. 3, the lighting fixture 200 is shown in a sectional view and the bulb-shaped lamp 1 is shown in a side view so that the positional relationship between the lighting fixture 200 and the bulb-type lamp 1 is easily understood.

  FIG. 4 is a cross-sectional view of the light bulb shaped lamp 1 according to the present embodiment. Specifically, FIG. 4 shows a cross section (YZ plane) passing through the lamp axis J.

  In the following description, “upper” or “upper” is the base 80 side of the light bulb shaped lamp 1, and “lower” or “lower” is the cover 110 side of the light bulb shaped lamp 1. Specifically, the Z-axis positive direction shown in FIGS. 1A and 1B is upward, and the Z-axis negative direction is downward.

  In each figure, the Z-axis direction is a direction parallel to the lamp axis J. The X-axis direction and the Y-axis direction are two directions orthogonal to each other on the plane orthogonal to the lamp axis J.

  As shown in FIGS. 1A to 3, the light bulb shaped lamp 1 includes a lamp body 100 and a cover 110.

  The lamp main body 100 is a main body portion of the light bulb shaped lamp 1. As shown in FIG. 2, the lamp body 100 includes a light emitting module 10 and emits visible light (illumination light), for example. The light bulb shaped lamp 1 includes a recess 71 provided in the lamp body 100 for adjusting the position (relative position) of the cover 110 with respect to the lamp body 100.

  The cover 110 is provided outside the lamp body 100 and on the light emitting surface side of the light emitting module 10 (specifically, the Z axis negative direction). The light emitted from the lamp body 100 passes through the cover 110 and is emitted to the outside. The cover 110 is a member that defines the appearance of the light bulb shaped lamp 1.

  The light bulb shaped lamp 1 can adjust the position of the cover 110 with respect to the lamp body 100. Specifically, the light bulb shaped lamp 1 can change the distance between the light emitting module 10 (or the tip of the lamp body 100 or the base 80) and the light emitting surface of the cover 110 on the lamp axis J. . Thereby, the light bulb shaped lamp 1 can be attached to the lighting fixture 200 or the like with the lamp main body 100 and the cover 110 being brought close to each other or away from each other.

  Note that the lighting fixture 200 is, for example, an embedded lighting fixture such as a downlight. As shown in FIG. 3, the lighting fixture 200 is embedded in the ceiling 210. The lighting fixture 200 includes a socket 201 and a fixture main body 202.

  The socket 201 is connected to an external power source such as a commercial power source. The socket 201 is electrically and mechanically connected to the base 80 by screwing the base 80 of the light bulb shaped lamp 1. Thereby, the light bulb shaped lamp 1 can receive power for lighting the light emitting module 10 from the outside via the socket 201.

  The instrument body 202 forms a space for accommodating the light bulb shaped lamp 1. Note that the depth of the fixture body 202 (specifically, the length in the Z-axis direction) varies depending on the type of lighting fixture.

  Below, the component of the lightbulb-shaped lamp 1 is demonstrated in detail using drawing.

[Lamp body]
As shown in FIG. 2, the lamp body 100 includes a light emitting module 10, a base 20, a drive circuit 30, a housing 60, a globe 70, and a base 80. Although not shown, the lamp body 100 may include a heat sink and a circuit case.

  The light emitting module 10 is a light emitting device that emits light of a predetermined color (wavelength). The light emitting module 10 according to the present embodiment emits white light, for example.

  The light emitting module 10 is disposed inside the globe 70. Specifically, the light emitting module 10 is mounted on the base 20 and emits light by the electric power supplied from the drive circuit 30.

  As shown in FIG. 2, the light emitting module 10 includes a substrate 11 and a light emitting element 12 mounted on the substrate 11. In the present embodiment, the light emitting module 10 is arranged so that the substrate 11 and the lamp axis J intersect.

  The substrate 11 is a mounting substrate for mounting the light emitting element 12. The substrate 11 is, for example, a substantially circular substrate in plan view. The substrate 11 is attached on the base 20. As the substrate 11, for example, a metal base substrate formed by applying an insulating coating to a metal base material such as aluminum, a ceramic substrate that is a sintered body of a ceramic material such as alumina, or a resin substrate made of a resin material Etc. are used. The shape of the substrate 11 is not limited to a circle but may be a rectangle or the like.

  A plurality of light emitting elements 12 are mounted on one side of the substrate 11. In the present embodiment, the plurality of light emitting elements 12 are arranged in a plane on a circumference around the lamp axis J on the lower surface (surface in the negative Z-axis direction) of the substrate 11. Each light emitting element 12 is mounted in a posture in which the main light emitting direction is directed to the front side (Z-axis negative direction) of the light bulb shaped lamp 1.

  The light-emitting element 12 according to the present embodiment is a surface-mount (SMD) type LED element. As shown in FIG. 2, the light emitting element 12 includes a container 12a, an LED chip 12b arranged in the container 12a, and a sealing member 12c for sealing the LED chip 12b. The sealing member 12c includes a wavelength conversion material that converts the wavelength of light emitted from the LED chip 12b.

  In the present embodiment, for example, a blue LED chip that emits blue light is used as the LED chip 12b. As the blue LED chip, for example, a gallium nitride-based light-emitting element having a center wavelength of 440 nm to 470 nm formed of an InGaN-based material is used. In this case, the sealing member 12c includes, for example, YAG (yttrium, aluminum, garnet) -based yellow phosphor particles as a wavelength conversion material in order to emit white light.

  The base 20 (module plate) is a support member (support base) that supports the light emitting module 10. The base 20 is a substantially disk-shaped member having a plane orthogonal to the lamp axis J, for example. The light emitting module 10 is fixed to the base 20 with a fastener, a screw, an adhesive, or the like.

  The base 20 also functions as a heat radiating member (heat sink) for radiating heat generated in the light emitting module 10 (light emitting element 12). Therefore, the base 20 is preferably formed of a metal material or a resin material having a high thermal conductivity. Thereby, the heat generated in the light emitting module 10 can be released efficiently. The base 20 is molded by, for example, aluminum die casting.

  The drive circuit 30 is a circuit unit for driving the light emitting module 10. The drive circuit 30 according to the present embodiment is a lighting circuit (power supply circuit) that supplies power for lighting (light emission) the light emitting module 10 (light emitting element 12) to the light emitting module 10. The drive circuit 30 converts AC power supplied from the base 80 into a DC voltage and supplies it to the light emitting module 10. The drive circuit 30 is electrically connected to each of the light emitting module 10 and the base 80 by lead wires or the like (not shown).

  The drive circuit 30 is accommodated in a circuit case (not shown), for example. For example, the drive circuit 30 is fixed to the circuit case by screwing, adhesion or engagement.

  The housing 60 is an outer housing of the light bulb shaped lamp 1. The outer surface of the housing 60 is exposed outside the lamp (in the atmosphere). The housing 60 is a cylindrical body that is disposed so as to surround the drive circuit 30. A globe 70 is connected to one end (end in the negative Z-axis direction) of the housing 60, and a base 80 is connected to the other end (end in the positive Z-axis direction).

  The housing 60 holds the light emitting module 10. In the present embodiment, the housing 60 holds the light emitting module 10 via the base 20.

  The housing 60 has an insulating property. The casing 60 is formed using an insulating resin material such as polybutylene terephthalate (PBT). Since the housing 60 surrounds the drive circuit 30, the insulating property of the light bulb shaped lamp 1 can be improved.

  The globe 70 is a light-transmitting cover provided on the light emitting surface side of the light emitting module 10. The globe 70 is formed so as to extract light emitted from the light emitting module 10 to the outside of the lamp. That is, the light emitted from the light emitting module 10 that has entered the inner surface of the globe 70 passes through the globe 70 and is extracted to the outside of the globe 70.

  For example, the globe 70 is fitted into the end of the housing 60. Alternatively, the globe 70 may be bonded to the end of the housing 60 using an adhesive or the like.

  The globe 70 is, for example, a hollow rotating body centered on the lamp axis J. In the present embodiment, the globe 70 is a substantially hemispherical body, but is not limited thereto. The globe 70 may have any shape such as a flat spheroid.

  The globe 70 is made of, for example, a glass material such as silica glass, or a resin material such as acrylic (PMMA) or polycarbonate (PC). The globe 70 may be subjected to a diffusion process for diffusing light emitted from the light emitting module 10.

  In the present embodiment, the globe 70 is provided with a recess 71. Details of the recess 71 will be described later with reference to FIG.

  The base 80 is a power receiving unit that receives power for causing the light emitting module 10 (light emitting element 12) to emit light from the outside of the lamp. The base 80 is attached to the socket 201 of the lighting fixture 200, for example. Thereby, the base 80 can receive electric power from the socket 201 of the lighting fixture 200 when the light bulb shaped lamp 1 is turned on.

  The base 80 is a metal bottomed cylindrical body. In the present embodiment, the base 80 is a screwed-type Edison type (E type) base. For example, as the base 80, an E26 type, an E17 type, an E16 type, or the like can be used. Further, a plug-in base may be used as the base 80.

[cover]
As shown in FIGS. 1A to 4, the cover 110 includes a convex portion 111 and a plate-like portion 113.

  The convex portion 111 is a portion that is inserted into the concave portion 71 of the lamp body 100. In the present embodiment, the shape of the convex portion 111 is cylindrical, but is not limited thereto. The convex portion 111 may be columnar. Specifically, the convex portion 111 is a cylindrical portion centered on the lamp axis J. The outer diameter of the convex portion 111 substantially matches the inner diameter of the concave portion 71. The convex portion 111 is erected from the approximate center of the plate-like portion 113.

  As shown in FIG. 4, the convex portion 111 has a male screw portion 112 that is screwed into the female screw portion 72. The male screw part 112 is provided on the outer surface of the convex part 111.

  The plate-like portion 113 is a portion corresponding to the light emitting surface of the cover 110. The plate-like part 113 has translucency. That is, the light emitted from the lamp body 100 passes through the plate-like portion 113 and is emitted to the outside.

  The plate-like portion 113 is a substantially circular plate that is substantially orthogonal to the lamp axis J with the lamp axis J as the center. Specifically, as shown in FIG. 4, the plate-like portion 113 has a thin central portion and end portions, and a large thickness between the central portion and the end portions.

  As shown in FIG. 3, the plate-like portion 113 is a portion that is positioned below the ceiling 210 and visible to the user when the light bulb shaped lamp 1 is attached to the lighting fixture 200. That is, the plate-like portion 113 is a portion that defines the appearance of the light bulb shaped lamp 1. Therefore, the external appearance of the light bulb shaped lamp 1 can be changed by making the shape of the plate-like portion 113 different.

  The cover 110 is formed from, for example, a translucent resin material. As the resin material, acrylic (PMMA) or polycarbonate (PC) can be used. The cover 110 is integrally formed by, for example, injection molding using a resin material. Note that the cover 110 may be formed of a glass material such as silica glass.

  The cover 110 may be formed by combining a plurality of components. For example, the convex part 111 and the plate-like part 113 are separate bodies, and the cover 110 may be formed by combining them. For example, by using the convex portions 111 having different lengths, the adjustment range of the position of the cover 110 with respect to the lamp body 100 can be further increased.

[Concave]
The recess 71 is used for adjusting the position of the cover 110 with respect to the lamp body 100. The recess 71 is recessed inward from the outer surface of the lamp body 100. In the present embodiment, the recess 71 is provided in the globe 70. Specifically, the recess 71 is provided at the center of the globe 70 when the light emitting surface is viewed in plan (that is, when viewed in the Z-axis direction). That is, the recess 71 is provided so that the lamp axis J passes through the center.

  As shown in FIG. 4, the recessed part 71 has the internal thread part 72 provided in the inner surface. The convex portion 111 of the cover 110 is inserted into the concave portion 71. That is, the concave portion 71 is a space inside the globe 70 and is a space into which the convex portion 111 of the cover 110 is inserted.

  When the convex portion 111 is inserted into the concave portion 71, the female screw portion 72 provided in the concave portion 71 and the male screw portion 112 provided in the convex portion 111 are screwed together. The position of the cover 110 with respect to the lamp body 100 can be adjusted by adjusting the insertion amount of the convex portion 111 with respect to the concave portion 71.

[Effects, etc.]
As described above, the light bulb shaped lamp 1 according to the present embodiment includes the lamp main body 100 including the light emitting module 10 and the cover 110 provided outside the lamp main body 100 and on the light emitting surface side of the light emitting module 10. And a recess 71 provided in the lamp body 100 for adjusting the position of the cover 110 with respect to the lamp body 100.

  Thereby, since the position of the cover 110 with respect to the lamp body 100 can be changed, the light bulb shaped lamp 1 can be applied to lighting fixtures having different depths. Therefore, according to the light bulb shaped lamp 1 according to the present embodiment, versatility can be enhanced. For example, since the light bulb shaped lamp 1 can be applied to an existing lighting fixture without replacing the lighting fixture, the appearance can be easily changed. That is, the appearance of a lighting fixture such as a downlight can be changed only by changing the light bulb shaped lamp 1 or by changing the cover 110.

  Further, for example, the lamp main body 100 includes a housing 60 that holds the light emitting module 10 and a light-transmitting globe 70 provided on the light emitting surface side of the light emitting module 10, and the recess 71 is formed on the globe 70. Is provided.

  Thereby, since the recessed part 71 is formed in the globe 70, as the light emitting module 10 and the housing | casing 60, the same thing as the existing lamp | ramp can be utilized. The globe 70 is hollow inside. For this reason, when the recessed part 71 is provided in the globe 70, it is not necessary to change arrangement | positioning of the light emitting module 10, the drive circuit 30, etc. FIG. Therefore, the cover 110 can be attached by changing only the globe of the conventional lamp to the globe 70 according to the present embodiment. Therefore, versatility can be further improved.

  Further, for example, the recess 71 is provided at the center of the globe 70 when the light emitting surface is viewed in plan.

  Thereby, when the lamp body 100 is turned on, the recess 71 can be made inconspicuous. For example, since the center of the globe 70 is the portion with the largest amount of light, even if light is partially absorbed or scattered by the recess 71, it is not noticeable.

  Further, for example, the cover 110 has a convex portion 111 inserted into the concave portion 71, the concave portion 71 has a female screw portion 72 provided on the inner surface, and the convex portion 111 is screwed into the female screw portion 72. A male threaded portion 112 is provided.

  Thereby, the position of the cover 110 with respect to the lamp body 100 can be fixed at an arbitrary position. Further, since the male screw portion 112 and the female screw portion 72 are screwed together, it is possible to suppress the cover 110 from sliding down due to vibration during use.

(Modification 1)
Below, the modification 1 of embodiment is demonstrated using FIG. FIG. 5 is a cross-sectional view of the light bulb shaped lamp 2 according to this modification. Specifically, FIG. 5 shows a cross section (YZ plane) passing through the lamp axis J.

  In the above embodiment, the example in which the position of the cover 110 with respect to the lamp body 100 is changed by screwing the cover 110 into the recess 71 provided in the lamp body 100 has been described. In the light bulb shaped lamp 2 according to this modification, an example in which the cover 310 is pushed into the concave portion 371 provided in the lamp main body 300 will be described.

  The light bulb shaped lamp 2 according to this modification includes a lamp body 300 and a cover 310 as shown in FIG.

  The lamp body 300 includes a globe 370 instead of the globe 70 as compared with the lamp body 100 according to the embodiment. Further, the lamp body 300 is provided with a recess 371 instead of the recess 71. About another structure, it is the same as that of embodiment.

  The concave portion 371 is a space in the globe 70 and is a space into which the convex portion 311 of the cover 310 is inserted. Specifically, the concave portion 371 is a space in the lamp body 300 that is occupied by the convex portion 311 when the convex portion 311 is inserted to the deepest position. That is, the concave portion 371 is a space in the lamp main body 300 into which the convex portion 311 can be inserted.

  The recess 371 passes through the globe 370. That is, the globe 370 is provided with a through hole 372. The convex portion 311 of the cover 310 is inserted into the through hole 372.

  The through-hole 372 can be easily formed by additional processing, for example. Specifically, after forming the substantially hemispherical globe 370, the through-hole 372 can be formed using a tool for making a hole such as a drill or a cone.

  The cover 310 includes a convex portion 311 instead of the convex portion 111. The convex portion 311 is provided with a concave / convex portion 312 instead of the male screw portion 112.

  The uneven portion 312 is provided on the outer surface of the convex portion 311. Specifically, the concavo-convex portion 312 is formed by repeatedly providing a plurality of convex portions 312 a having a triangular cross-sectional shape. When the convex portion 311 is inserted into the through hole 372, the convex portion 312 a of the concave and convex portion 312 is locked to the globe 370.

  The convex portion 312a has, for example, a first slope 312b and a second slope 312c sharing one side. The first slope 312b is a slope on the upper surface side (that is, the light emitting module 10 side). The second inclined surface 312c is an inclined surface on the lower surface side (that is, the plate-like portion 113 side).

  The slopes of the first slope 312b and the second slope 312c are different from each other. Specifically, the slope of the first slope 312b is gentler than the slope of the second slope 312c. Thereby, since the inclination of the 1st slope 312b is gentle, the convex part 311 can be inserted in the through-hole 372 easily. In addition, since the slope of the second inclined surface 312c is steep, it is possible to prevent the convex portion 311 inserted into the through hole 372 from coming out of the through hole 372. That is, the fall of the cover 310 can be suppressed.

  In this modification, the cover 310 can be attached to the lamp body 300 by pushing the convex portion 311 of the cover 310 into the through hole 372 of the globe 370. Specifically, since the first inclined surface 312b is pressed by contacting the wall surface of the through hole 372, the uneven portion 312 is pressed inward. The convex portion 311 (or the globe 370) is elastically deformed by the pressing, and the concave and convex portion 312 allows each of the plurality of convex portions 312a to pass through the through hole 372. When the application of the force for pushing the convex portion 311 is stopped, the concave / convex portion 312 is locked to the globe 370 at the position where the application of the force is stopped, so that the cover 310 can be fixed.

  As described above, the position of the cover 310 with respect to the lamp main body 300 can be changed even when the uneven portion is provided instead of the screw portion.

(Modification 2)
Next, Modification 2 of the embodiment will be described with reference to FIG. FIG. 6 is a cross-sectional view of a light bulb shaped lamp 3 according to this modification. Specifically, FIG. 6 shows a cross section (YZ plane) passing through the lamp axis J.

  In the above embodiment, the example in which the concave portion 71 is provided in the globe 70 has been described. In the light bulb shaped lamp 3 according to this modification, the recess 471 provided in the lamp body 400 passes through the globe 470 and the light emitting module 410.

  The light bulb shaped lamp 3 according to this modification includes a lamp body 400 and a cover 510 as shown in FIG.

  Compared with the lamp body 100 according to the embodiment, the lamp body 400 includes a light emitting module 410, a base 420 and a globe 470 instead of the light emitting module 10, the base 20 and the globe 70. The lamp body 400 is provided with a recess 471. About another structure, it is the same as that of embodiment.

  The concave portion 471 is a space in the lamp main body 400 and is a space into which the convex portion 511 of the cover 510 is inserted. Specifically, the concave portion 471 is a space in the lamp body 400 that is occupied by the convex portion 511 when the convex portion 511 is inserted to the deepest depth. That is, the concave portion 471 is a space in the lamp main body 400 into which the convex portion 511 can be inserted.

  The recess 471 passes through the globe 470, the light emitting module 410, and the base 420 in order. That is, the globe 470, the light emitting module 410, and the base 420 are each provided with a through hole. The convex portions 511 of the cover 510 are sequentially inserted into these through holes.

  The through hole 472 is provided in the globe 470. In the present modification, a female screw portion 72 is provided on the wall surface of the through hole 472. The through hole 472 may be the same as the through hole 372 according to the first modification.

  The through hole 413 is provided in the substrate of the light emitting module 410. The through hole 421 is provided in the base 420. The through hole 472, the through hole 413, and the through hole 421 are formed so as to overlap when viewed from the light emitting side. Specifically, the through-hole 472, the through-hole 413, and the through-hole 421 are provided so that the lamp shaft J passes through the center of each.

  The cover 510 includes a convex portion 511 instead of the convex portion 111. A male screw portion 112 that is screwed into the female screw portion 72 is provided on the outer surface of the convex portion 511. The convex part 511 protrudes from the convex part 111. That is, the convex portion 511 is longer in length (height) in the protruding direction (Z-axis direction) than the convex portion 111.

  The length (height) of the convex portion 511 and the length (depth) of the concave portion 471 are related to the adjustment width of the position of the cover 510 with respect to the lamp body 400. That is, as the convex portion 511 is higher and the concave portion 471 is deeper, the adjustment width of the position of the cover 510 with respect to the lamp body 400 can be increased. That is, the cover 510 can be provided at a position farther from the lamp body 400.

  As described above, in the light bulb shaped lamp 3 according to this modification, the recess 471 penetrates not only the globe 470 but also the light emitting module 410.

  Thereby, the adjustment range of the position of the cover 510 with respect to the lamp body 400 can be increased. Therefore, since the light bulb shaped lamp 3 according to the present modification can be applied to more various types of lighting fixtures, versatility can be further enhanced.

  The concave portion 471 may penetrate until reaching the base 80. In other words, the protrusion 511 may be insertable until the tip reaches the base 80 of the lamp body 400. At this time, a through hole may also be provided in the circuit board of the drive circuit 30. Alternatively, the drive circuit 30 may be disposed in a region different from the recess 471. For example, the drive circuit 30 may be arranged so as not to intersect the lamp axis J.

(Other)
As described above, the illumination light source according to the present invention has been described based on the above embodiment and the modifications thereof, but the present invention is not limited to the above embodiment.

  For example, in the above embodiment, the concave portion 71 is provided in the globe 70 so as to pass through the lamp shaft J, but the present invention is not limited to this. The recess 71 may be provided at a position shifted from the lamp axis J of the globe 70. Alternatively, the recess 71 may be provided in the housing 60 instead of the globe 70. Further, the lamp body 100 may not include the globe 70. Therefore, in this case, the recess 71 may be provided in the light emitting module 10 or the base 20, for example.

  In addition, for example, in the first modification of the above embodiment, an example in which the uneven portion 312 is provided on the protruded portion 311 of the cover 310 is shown. However, at this time, the uneven portion that fits the uneven portion 312 is attached to the globe 370. May be provided.

  Further, for example, in the above-described embodiment and modification, an example in which the male screw portion 112 or the concavo-convex portion 312 is provided on the convex portion of the cover is shown, but the present invention is not limited thereto. The convex part of the cover may have a hook-like claw part or the like. For example, the position of the cover with respect to the lamp body can be adjusted by hooking the hook-shaped claw portion into the through-hole 472 provided in the globe 470 or the through-hole 321 provided in the base 320.

  Further, for example, in the above-described embodiment, an example in which the cover 110 has translucency has been described, but the present invention is not limited thereto. The cover 110 may be a light shielding cover. For example, the cover 110 may be a light-shielding cylindrical body, a truncated cone-shaped body, or the like. That is, the light emitted from the lamp main body 100 may be emitted outside through the inside of the cylinder instead of passing through the cover 110.

  Thus, the shape, size, material, and the like of the cover 110 are not limited to the examples shown in the above embodiment. For example, the light bulb shaped lamp 1 may not include the cover 110.

  For example, in the above-described embodiment, an example in which the light emitting element 12 is an SMD type LED element has been described, but the present invention is not limited thereto. For example, the light emitting module 10 may be a COB (Chip On Board) type light emitting module in which a bare chip is directly mounted on the substrate 11. That is, the LED chip itself may be employed as the light emitting element 12. In this case, the plurality of LED chips may be collectively or individually sealed with a sealing member. The sealing member may contain a wavelength conversion material such as a yellow phosphor as described above.

  Further, for example, in the above embodiment, the LED is shown as an example of the light emitting element 12, but the present invention is not limited to this. The light emitting element 12 may be a semiconductor light emitting element such as a semiconductor laser, or a solid light emitting element such as an organic EL (Electro Luminescence) or an inorganic EL.

  For example, in the above-described embodiment, the downlight is shown as an example of the lighting fixture 200, and the light bulb shaped lamp 1 including the base 80 is shown as an example of the illumination light source. However, the present invention is not limited to this. For example, the illumination light source may be a straight tube lamp. Alternatively, the illumination light source may be a lamp that can be attached to an illumination power supply unit of a hook ceiling body (ceiling light feeding unit) provided on the ceiling. In this case, the illumination light source may be provided with a power receiving unit having the same structure as an adapter for attaching the ceiling light to the hooking ceiling body instead of the base 80. Moreover, the lighting fixture 200 may be other lighting fixtures such as a pendant type lighting fixture (pendant light), a table lamp, and the like.

  In addition, the embodiment can be realized by arbitrarily combining the components and functions in each embodiment without departing from the scope of the present invention, or a form obtained by subjecting each embodiment to various modifications conceived by those skilled in the art. Forms are also included in the present invention.

1, 2, 3 Light bulb shaped lamp 10, 410 Light emitting module 60 Case 70, 370, 470 Globe 71, 371, 471 Recess 72 Female thread part 100, 300, 400 Lamp body 110, 310, 510 Cover 111, 311, 511 Convex Part 112 Male thread

Claims (7)

A lamp body including a light emitting module;
A cover provided outside the lamp body, and on the light emitting surface side of the light emitting module;
An illumination light source comprising: a recess provided in the lamp body for adjusting a position of the cover with respect to the lamp body. The lamp body is
A housing for holding the light emitting module;
A light-transmitting glove provided on the light emitting surface side of the light emitting module;
The illumination light source according to claim 1, wherein the recess is provided in the globe. The illumination light source according to claim 2, wherein the concave portion is provided at a center of the globe when the light emitting surface is viewed in plan. The cover has a convex portion to be inserted into the concave portion,
The concave portion has a female screw portion provided on the inner surface,
The illumination light source according to claim 2, wherein the convex portion has a male screw portion that is screwed into the female screw portion. The light source for illumination according to any one of claims 2 to 4, wherein the recess penetrates the globe. The illumination light source according to claim 5, wherein the recess further penetrates the light emitting module. A lamp body including a light emitting module;
A recess provided in the lamp body for adjusting the position of the cover with respect to the lamp body,
The cover is provided on the outside of the lamp body and on the light emitting surface side of the light emitting module.

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