JP6525535B2 - Light source unit, illumination lamp and illumination device - Google Patents

Description

  The present invention relates to a light source unit for a lighting lamp, a lighting lamp using the light source unit, and a lighting apparatus using the lighting lamp.

  In recent years, in response to social demands for environmental consideration, light-emitting diodes (hereinafter referred to as "LEDs") having a long life and low power consumption as compared to conventionally used light sources such as incandescent lamps and fluorescent lamps The spread of the lighting lamps and lighting devices used is accelerating.

Since the amount of light emitted from a chip or a single package is small, the LED is configured by using a plurality of LEDs for the illumination lamp.
An LED is a point light source and has a strong directional light distribution that emits light strongly in the outgoing direction, and when used as a light source of an illumination lamp, it causes discomfort (granularity) or glare (glare) due to a strong light source image. It is required to suppress) or to expand the light distribution (light distribution angle).

  Patent Document 1 discloses a heat dissipating support, a substrate inserted and supported in a support groove of the heat dissipating support, and having a plurality of LEDs arranged in the length direction, and a cylinder having a storage chamber on the back side inside An LED lamp is disclosed which is provided with a tubular body. In the LED lamp, the heat dissipating support is inserted into the storage chamber, and is held between the inner peripheral surface and the plate-like holding portion protruding from the inner peripheral surface of the tubular body in the opposite positional relationship. It is possible to irradiate toward the irradiation side which is the opposite side to the back side of. According to this LED lamp, since the storage room is provided on the back side of the tube, the shadow of the LED is less likely to appear in the form of dots on the surface of the tube.

  Further, Patent Document 2 has a light source, an incident part for allowing light to be incident from the light source, and an irradiation area for emitting the light incident from the light source to the outside, and guides the light emitted from the light source. A lighting device with a light is disclosed. In this illumination device, at least a part of the irradiation area is opposite to the direction of the light incident on the light entrance. The irradiation area is cylindrical, and at least a part of the irradiation area faces the side opposite to the direction of light incident on the light entrance, and the thickness of the irradiation area guiding light from the light entrance to the cylindrical irradiation area is It is formed thicker than the other said irradiation area | region. According to this illumination device, even if a point-like and highly directional light source such as an LED is used, the irradiation light distribution can be easily controlled from wide light distribution to narrow light distribution without showing a point light source image. .

JP, 2012-164664, A Unexamined-Japanese-Patent No. 2012-253043

  However, in the LED lamp disclosed in Patent Document 1, the light emitted from the LED is diffused, scattered, reflected, etc. by the plastic tube containing the diffusion material, and a part of the light is inside the tube. However, there is no disclosure about the handling of some of the light returned to the inside of the tube, and there is room for improvement in terms of light utilization efficiency and LED lamp efficiency.

  Further, the lighting device disclosed in Patent Document 2 is capable of easily controlling the irradiation light distribution from wide light distribution to narrow light distribution without showing the point light source image of the LED, but has a complicated shape. There is room for improvement in that it is necessary to use a light guide which is poor in mass productivity and versatility. Moreover, there is no disclosure about the handling of part of the light emitted to the inside of the annular light guide, and there is room for improvement in terms of the light use efficiency and the efficiency of the lighting device.

  The present invention has been made to solve, for example, the problems as described above, and an illumination lamp capable of realizing high light utilization efficiency and high quality light irradiation with a simple configuration and assembly procedure. Light source unit, an illumination lamp, and an illumination apparatus.

  A light source unit according to the present invention covers a light source mounting body having a light source, a light source mounting portion in which the light source is disposed, and a smooth surface portion continuously formed from the light source mounting portion, and a previously specified area of the surface portion. In addition, the light source is exposed, and the light source mounting body is provided with a reflecting portion laid on the light source mounting body.

  A light source unit according to the present invention covers a light source mounting body having a light source, a light source mounting portion in which the light source is disposed, and a smooth surface portion continuously formed from the light source mounting portion, and a previously specified area of the surface portion. In addition, since the light source is exposed and the reflecting portion laid on the light source mounting body is provided, the light source unit capable of realizing high light utilization efficiency and high quality light irradiation with a simple configuration and assembly procedure. Can be provided.

FIG. 1 is a perspective view showing a light source unit according to Embodiment 1. FIG. 2 is a cross-sectional view showing the light source unit according to Embodiment 1, and is a cross-sectional view along A-A in FIG. FIG. 2 is an exploded perspective view showing a light source unit according to Embodiment 1. 1 is a perspective view schematically showing an illumination lamp according to Embodiment 1. FIG. FIG. 5 is a cross-sectional view schematically showing the illumination lamp according to Embodiment 1, and is a cross-sectional view taken along the line B-B in FIG. 4; FIG. 6 is a view showing the function and effect of the illumination lamp according to the first embodiment. FIG. 8 is an exploded perspective view showing a first modified example of the light source unit according to the first embodiment. FIG. 16 is an exploded perspective view showing a second modified example of the light source unit according to the first embodiment. FIG. 16 is an exploded perspective view showing a third modification of the light source unit according to the first embodiment. FIG. 8 is a perspective view showing a light source unit according to Embodiment 2. FIG. 8 is a perspective view showing a light source unit according to Embodiment 2. FIG. 10 is a perspective view showing a light source unit according to Embodiment 3. It is sectional drawing which shows the light source unit which concerns on Embodiment 3, and is CC sectional drawing in FIG. FIG. 16 is a perspective view showing a light source unit according to Embodiment 4. FIG. 15 is a cross-sectional view showing the light source unit according to Embodiment 4, and is a cross-sectional view taken along the line DD in FIG. FIG. 14 is a perspective view schematically showing an illumination lamp according to Embodiment 4. FIG. 17 is a cross-sectional view schematically showing an illumination lamp according to Embodiment 4, and is a cross-sectional view taken along line E-E in FIG. 16. FIG. 10 is a cross-sectional view of the illumination lamp according to Embodiment 5; FIG. 20 is a cross-sectional view of the illumination lamp according to Embodiment 6. FIG. 21 is a perspective view showing a light source unit according to a seventh embodiment. FIG. 21 is a cross-sectional view showing the light source unit according to Embodiment 7, and is a cross-sectional view along the line F-F in FIG. 20. FIG. 21 is a perspective view schematically showing an illumination lamp according to a seventh embodiment. FIG. 23 is a cross-sectional view schematically showing an illumination lamp according to Embodiment 7, and is a G-G cross-sectional view in FIG. 22. FIG. 21 is a perspective view of a lighting device 800 according to Embodiment 8.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiments described below. Moreover, in the following drawings, the relationship of the magnitude | size of each structural member may differ from an actual thing. Also, in the description of the embodiment, when directions or positions such as “upper”, “lower”, “left”, “right”, “front”, “back”, “front”, and “back” are indicated. These notations are only described as such for convenience of explanation, and do not limit the arrangement, orientation, etc. of devices, instruments, parts and the like.

Embodiment 1
FIG. 1 is a perspective view showing a light source unit 200 according to the present embodiment.
FIG. 2 is a cross-sectional view showing the light source unit 200 according to the present embodiment, and is a cross-sectional view taken along the line A-A in FIG.
FIG. 3 is an exploded perspective view of the light source unit 200 according to the present embodiment.
FIG. 4 is a perspective view schematically showing the illumination lamp 100 according to the present embodiment.
FIG. 5 is a cross-sectional view schematically showing the illumination lamp 100 according to the present embodiment, and is a cross-sectional view taken along the line B-B in FIG.

With reference to FIGS. 1-5, the structure of the light source unit 200 which concerns on this Embodiment, and the illumination lamp 100 using the light source unit 200 is demonstrated.
First, the configuration of the light source unit 200 will be described using FIGS.

  As shown in FIGS. 1 to 3, the light source unit 200 includes a light source substrate 20, a light source attachment 23, and a reflecting unit 25.

The light source substrate 20 includes a substrate 22 having a mounting surface 220 and an adhesive surface 221, and a plurality of LEDs 21 mounted on the mounting surface 220 of the substrate 22.
As the substrate 22, in order to suppress the temperature of the LED 21, it is preferable to use a substrate using a metal material having high thermal conductivity, such as aluminum, copper, or an alloy, or a ceramic substrate, a metal core substrate, a metal core ceramic substrate or the like. In addition, if the temperature of LED21 is below a regulation value, you may use a glass epoxy board | substrate and a paper phenol board | substrate.
Further, as shown in FIG. 1, the substrate 22 has a rectangular shape elongated in the longitudinal direction. The substrate 22 may not be rectangular as long as it is elongated, and may be elliptical, polygonal or the like. In addition, the substrate 22 may not necessarily be elongated, and the present embodiment can be applied to a non-elongated square, a polygon, a circle, an ellipse, or the like.

  On the mounting surface 220 of the substrate 22, a plurality of LEDs 21 are mounted in a row at the center of the substrate 22 in the short direction along the longitudinal direction. In the present embodiment, the case of using an LED as a light source will be described, but the light source may be of another type. Examples of other types of light sources will be described later.

  Then, as shown in FIG. 3, in the present embodiment, a guide display 2201 (an example of a guide) corresponding to the shape of the member through hole 252 of the reflection section 25 is formed on the mounting surface 220 of the substrate 22. The guide display 2201 can be formed using a silk, a resist, and a wiring pattern which constitute the substrate 22 in accordance with the shape of the member through hole 252 of the reflection portion 25. The guide display 2201 may be formed by printing, laser irradiation, or the like. The operation of the guide display 2201 will be described later.

  Moreover, the board | substrate 22 has a wiring pattern (not shown) for supplying lighting current to LED21. A wiring pattern (not shown) is formed at least on the mounting surface 220 of the substrate 22. A wiring pattern (not shown) can be used as a guide display 2201. Note that the wiring pattern (not shown) may be formed on the adhesive surface 221 of the substrate 22 or may be formed inside the substrate 22 as long as electrical insulation with the light source attachment 23 is maintained.

  The light source attaching body 23 is formed in a long shape so that the rectangular light source substrate 20 can be attached. The light source attachment 23 is manufactured, for example, by extrusion. The light source mounting body 23 also has a role of a heat sink for radiating heat generated from the LED 21 and is formed of, for example, a metal such as aluminum. By forming the light source mounting body 23 of metal, the rigidity of the light source mounting body 23 can be improved, and the shape stability of the illumination lamp 100 can also be improved. In the present embodiment, the light source attaching body 23 is formed in a long shape by extrusion molding, but may be formed by a method such as press molding.

The light source mounting body 23 includes a mounting body upper surface portion 2301, a light source mounting portion 230, a screw fixing portion 234, an arc portion 236, and a holding projection portion 237.
The mounting body upper surface portion 2301 is an example of a surface portion that forms the upper surface (continuous surface) of the light source mounting body 23. In the case where the upper surface portion 2301 of the mounting body is described, the upper surface (continuous surface) of the light source mounting body 23 may be referred to. The mounting body upper surface portion 2301 has a rectangular shape elongated in the longitudinal direction. The mounting body upper surface portion 2301 may not be rectangular as long as it is long, and may be elliptical, polygonal or the like. In addition, the mounting body upper surface portion 2301 may not necessarily be elongated, and may be a non-elongated square, a polygon, a circle, an ellipse, or the like.

The light source attachment portion 230 is provided on the light irradiation direction side (hereinafter, referred to as the upper side) of the light source attachment 23. The light source mounting portion 230 is provided on the mounting body upper surface portion 2301, and the LED 21 as a light source is mounted.
The light source mounting portion 230 is a recess 2303 formed along the longitudinal direction at the center of the mounting body upper surface portion 2301 along the longitudinal direction corresponding to the shape of the light source substrate 20, and an opening is formed in the mounting body top surface 2301. A recess 2303 is provided.
The light source attachment portion 230 includes a mounting surface 231 which is a bottom surface of the concave portion 2303 and side surfaces 232 formed on both sides in the lateral direction of the mounting surface 231. Further, the light source attachment portion 230 is provided with groove portions 233 formed along the longitudinal direction at both end portions in the lateral direction of the mounting surface 231 (that is, the boundary between the mounting surface 231 and the side surface 232).

  The light source substrate 20 is attached to the light source attachment portion 230. The light source substrate 20 is attached to the light source attachment portion 230 such that the adhesive surface 221 abuts on the placement surface 231 of the light source attachment portion 230. The light source substrate 20 is bonded and fixed to the light source mounting portion 230 by the bonding member 26 filled between the bonding surface 221 and the mounting surface 231 of the light source mounting portion 230. In the groove portion 233, an excess adhesive member 26 is captured, and is not protruded to the mounting surface 220 side. In addition, the excess adhesive member 26 is captured by the groove portion 233, and the dry adhesive member 26 is solidified in a shape that does not easily peel off from the light source attachment 23. Thus, the light source substrate 20 and the light source mounting portion 230 are bonded by the bonding member 26.

While the light source substrate 20 is attached to the inside of the recess 2303 of the light source attachment portion 230, the LED 21 is exposed from the opening of the recess 2303, and the mounting surface 220 and the mounting body upper surface 2301 (continuous surface) are smooth. Form part of a continuous surface.
As shown in FIG. 2, the mounting surface 220 of the substrate 22 and the upper end portion of the side surface 232 of the light source mounting portion 230 are substantially the same in a state where the light source substrate 20 is mounted inside the concave portion 2303 of the light source mounting portion 230. It will be on the plane. That is, the depth dimension of the recess 2303 and the thickness dimension of the substrate 22 are configured to be substantially equal. In other words, with the mounting surface 231 as a reference, the upper end portion of the side surface 232 and the mounting surface 220 of the substrate 22 are configured to have substantially the same height.

  The screw fixing portion 234 is provided so as to protrude to the lower side of the light source attachment portion 230 (opposite to the light irradiation direction). Screw holes 235 are formed in the screw fixing portion 234 along the longitudinal direction. The screw 7 (see FIG. 4) used when fixing the base of the illumination lamp 100 described later is inserted into the screw hole 235. The screw holes 235 are holes penetrating from one end surface to the other end surface of both end surfaces in the longitudinal direction of the screw fixing portion 234. The screw holes 235 are not necessarily penetrated, and when the screws 7 are screwed into the light source mounting body 23 from the both end surfaces in the longitudinal direction, the screw holes 235 are formed by secondary processing or the like for the necessary and sufficient length. It may be

  The arc portion 236 is extended outward in an arc shape from both sides in the width direction of the lower end portion of the screw fixing portion 234. The arc portion 236 is formed along the longitudinal direction. The arc portion 236 has an arc surface 2361 which is a lower surface (see FIG. 2). The arc surface 2361 is in contact with the inner circumferential surface 31 of the cover 300 of the illumination lamp 100 described later via the bonding member 4 (see FIG. 5).

The holding projection portion 237 is a plate portion protruding outward from each of both sides in the short direction of the light source attachment portion 230. That is, the holding projection portions 237 extend outward in a plate shape from both sides of the light source mounting portion 230 in the short direction. The light source attachment portions 230 are each formed along the longitudinal direction.
In the holding projection portion 237, the upper surface portion is a holding upper surface portion 238, and the lower surface portion is a holding lower surface portion 2381.
As described above, the light source unit 200 is configured such that the holding upper surface portion 238 of the mounting body upper surface portion 2301 and the mounting surface 220 of the light source substrate 20 are smoothly continuous surfaces, for example, at least a part of the same plane. Ru.

As described above, the mounting surface 2301 of the light source mounting body 23 is formed with the light source mounting portion 230 which is a concave portion elongated in the longitudinal direction at the central portion in the lateral direction. Holding projections 237 are provided on both sides of the light source mounting portion 230 in the lateral direction. The light source attachment portion 230 and the holding projection portion 237 are formed along the longitudinal direction.
In the holding projection portion 237, the edge of the outer end is referred to as a long side edge 239. Further, in the holding projection portion 237, the edge portion of the longitudinal direction end portion is referred to as a short side edge portion 240.

In the present embodiment, the reflecting section 25 is in the form of a sheet, and is mounted (layed) on the light source mounting body 23 so as to cover the mounting body upper surface portion 2301 of the light source mounting body 23.
The reflecting portion 25 is a reflecting member in close contact with the mounting body upper surface portion 2301 (the holding upper surface portion 238) and at least a part of the mounting surface 220. In the following, the mounting body upper surface 2301 (the holding upper surface 238) and at least a part of the mounting surface 220 to which the reflecting portion 25 adheres may be referred to as a reflecting portion adhering portion 2304.

The width in the short side direction of the reflecting portion 25 is substantially equal to the width in the short side direction of the mounting body upper surface portion 2301 of the light source mounting body 23.
The length in the longitudinal direction of the reflective portion 25 is slightly shorter than the length in the longitudinal direction of the attachment body upper surface portion 2301 of the light source attachment 23 and is substantially equal to the length in the longitudinal direction of the light source substrate 20.

The reflecting portion 25 has a member adhering surface 251 in contact with the reflecting portion adhering portion 2304, a reflecting surface 250 on the back side thereof, and a member through hole 252 for exposing the LED 21 mounted on the light source substrate 20. That is, the member through holes 252 are provided in the reflection portion 25 so that the LEDs 21 are exposed in a state where the light source substrate 20 is attached to the light source attachment portion 230. In the present embodiment, the reflecting portion 25 and the reflecting portion adhering portion 2304 are adhered by an adhesive tape (not shown) provided in advance on the member adhering surface 251 of the reflecting portion 25. Here, the reflecting portion 25 is bonded so that the peripheral portion of the member through hole 252 substantially matches the guide display 2201 formed on the mounting surface 220 of the substrate 22. Since the position of the reflecting portion 25 with respect to the reflecting portion adhering portion 2304 is specified, the reflecting portion 25 does not protrude from the upper surface portion of the light source attaching body 23. In this manner, the reflective portion 25 can cover the previously identified region of the reflective portion adhesive portion 2304. The member through hole 252 is an example of a through hole. An edge along the long side of the reflecting portion 25 is referred to as a member long side edge portion 253.
As shown in FIG. 1, in the present embodiment, one member through hole 252 is configured to expose three LEDs 21. Note that one member through hole 252 may be formed for each of the LEDs 21, or one member through hole 252 may be formed for each of the two LEDs 21.

  At least the reflective surface 250 of the reflective portion 25 has high reflectance. The reflective portion 25 is formed, for example, in a sheet shape by mixing a resin material and a highly reflective material. Alternatively, the reflective portion 25 may be formed by molding a resin material into a sheet and applying a highly reflective material on the surface thereof. In this case, the area to which the highly reflective material is applied may be limited to the reflective surface 250 only.

  The reflective portion 25 may be a material that can be attached to the reflective portion contact portion 2304 so as to cover the attachment upper surface portion 2301, for example, a gel shape. In addition, the reflective portion 25 may be a material that can be applied to the reflective portion adhesive portion 2304 so as to cover the attachment upper surface portion 2301, for example, a liquid. Then, the reflection part 25 may be a material formed by applying or applying a gel-like or liquid material to the reflection part adhesion part 2304 and then drying it. Since the gel-like or liquid material has fluidity, the region of the reflection portion 25 formed in the reflection portion adhesion portion 2304 which is specified in advance so as to cover the attachment upper surface portion 2301 is partitioned using a jig or the like. And applied or applied. In this case, the area of the reflective portion 25 is partitioned such that the LED 21 is not covered.

Next, the configuration of the illumination lamp 100 will be described using FIGS.
As shown in FIGS. 4 and 5, the illumination lamp 100 includes a light source unit 200, a cover 300 for housing the light source unit 200 therein, an earth base 6, and a feeding base 5.

  The cover 300 is an example of a tubular member. In the present embodiment, the cover 300 is an elongated substantially cylindrical shape having a substantially circular cross section, and the light source unit 200 is accommodated therein. The cover 300 is light transmissive and light diffusive. The cover 300 is manufactured, for example, by extrusion using a resin material such as polycarbonate (PC) or acrylic. The cover 300 may be formed using another resin material as long as it has light transparency and light diffusion. In addition, it is not necessary to necessarily have light diffusivity depending on the required specification of the illumination lamp.

As shown in FIG. 5, the cover 300 has an outer peripheral surface 30 and an inner peripheral surface 31. In addition, the cover 300 has a pair of holding protrusions 32 protruding inward from the inner circumferential surface 31.
The pair of holding protrusions 32 is provided below the maximum diameter portion L1 in a cross-sectional view in the short direction of the cover.
The holding projection 32 has a projection upper surface portion 321 which is an upper surface, a projection lower surface portion 322 which is a lower surface, and a projection side portion 320 which is a surface (end surface of the tip) facing inward.

The light source unit 200 is inserted into the inside of the cover 300 below the projection lower surface portions 322 of the pair of holding projections 32.
At this time, the projection lower surface portion 322 of the holding projection 32 abuts on the reflection surface 250 of the reflection portion 25 of the light source unit 200. In other words, the projection lower surface portion 322 of the holding projection 32 and the holding upper surface portion 238 of the holding projection portion 237 of the light source attaching body 23 abut on each other via the reflecting portion 25. That is, the member long side edge portion 253 side of the reflection portion 25 is held by the projection lower surface portion 322 of the holding projection 32 and the holding upper surface portion 238 of the holding projection portion 237 of the light source attachment 23. Since the holding projection 32 has light transparency and light diffusion, it can transmit the light reflected by the reflection unit 25. In addition, the arc surface 2361 of the light source attachment 23 and the inner circumferential surface 31 of the cover 300 are in contact via the adhesive member 4. That is, the light source attachment 23 is adhered and fixed to the inner circumferential surface 31 of the cover 300 by the adhesive member 4.

  As shown in FIG. 5, the cross-sectional shape of the light source unit 200 is a shape that abuts on a plurality of portions of the lower portion from the holding projection 32 in the internal shape of the cover 300. Therefore, when the light source unit 200 is housed in the lower portion inside the cover 300, the light source unit 200 is locked by the projection lower surface portion 322 and the inner peripheral surface 31 below the holding projection 32.

  Here, in the internal space of the cover 300, the space on the upper side of the holding projection 32 is referred to as the irradiation side space 8. Further, in the internal space of the cover 300, the space on the lower side from the holding projection 32 is taken as an instrument side space 9. That is, the light source unit 200 is inserted and disposed in the device side space 9 inside the cover 300.

The power supply base 5 is attached to a power supply socket 813 of the lighting device main body 811 described later, and can mechanically hold the lighting lamp 100 with respect to the lighting device 810. The power supply base 5 is a base for supplying power to the light source unit 200.
The power supply base 5 includes a power supply base 50 including a bottom wall 500 and a peripheral wall 501, and a power supply terminal 51 disposed on the bottom wall 500.

The grounding cap 6 can be attached to a grounding socket 812 of the lighting device main body 811 described later to mechanically hold the lighting lamp 100 with respect to the lighting device 810. The ground cap 6 is attached to the ground socket 812 and can electrically connect the light source unit 200 and the luminaire main body 811. The ground cap 6 may be configured so as to mechanically hold the lighting lamp 100 and not be electrically connected to the light source unit 200 or the lighting fixture body 811.
The ground cap 6 includes a ground base 60 including a bottom wall 600 and a peripheral wall 601, and a ground terminal 61 disposed on the bottom wall 600. Further, the bottom wall portion 600 is provided with a screw hole 602 through which a screw 7 for fixing the ground cap 6 to the light source unit 200 is inserted. Although not shown, the feed base 5 is also provided with a screw hole 502 for passing a screw 7 for fixing the feed base 5 to the light source unit 200 in the same manner as the ground base 6.

  In the present embodiment, although the straight tube lamp based on the shape of the base is JEL801 has been described, for example, the present embodiment can be applied to a straight tube lamp based on the shape of the base according to JEL802. In addition, the present embodiment can be applied to a base having another shape.

  FIG. 6 is a figure which shows the effect of the illuminating lamp 100 which concerns on this Embodiment. The effects of the illumination lamp 100 according to the present embodiment will be described using FIG.

  The cover 300 of the illumination lamp 100 shown in FIG. 6 has light diffusivity as described above. The light emitted from the LED 21 is scattered inside the cover 300 or is reflected by the inner circumferential surface 31 of the cover 300 or the outer circumferential surface 30 of the cover 300. Thereby, a part of the light emitted from the LED 21 is returned to the irradiation side space 8 inside the cover 300. Here, the irradiation side space 8 is an internal space of the cover 300 covered by the cover 300 and the light source unit 200, and is a space above the light source unit 200. Note that, of the internal space of the cover 300, the space below the unit upper surface (the surface on the irradiation side (upper surface)) of the light source unit 200, that is, the space where the light source unit 200 is disposed Do.

  The reflection portion 25 bonded to the holding upper surface portion 238 of the holding projection portion 237, the mounting surface 220 of the substrate 22, and the (reflection portion adhesion portion 2304) re-transmits the light returned from the cover 300 to the irradiation side space 8 again. It has a function to reflect toward the cover 300.

  The solid line arrow shown in FIG. 6 is a representative path of the light returned from the cover 300 to the irradiation side space 8 starting from the point O of the inner peripheral surface 31 of the cover 300; It represents a representative route.

The light source unit 200 according to the present embodiment is formed and assembled so that the heights of the holding upper surface portion 238 of the light source attaching body 23 and the mounting surface 220 of the substrate 22 are equal. Further, the holding upper surface portion 238 and the mounting surface are configured to form a smoothly continuous surface, for example, a part of a flat surface. Therefore, the reflection part 25 can be bonded over a wide area, straddling the holding upper surface part 238 of the light source attachment 23 and the mounting surface 220 of the substrate 22 whose heights are aligned.
With such a structure of the light source unit 200, the reflecting surface 250 of the smooth reflecting portion 25 having a large area and continuous is formed on the unit upper surface (surface on the irradiation side (upper surface)) of the light source unit 200.
In the present embodiment, the case where the reflecting surface 250 of the reflecting portion 25 is planar is mainly described, but a smooth continuous curved surface may be formed.

The light returned from the point O on the inner circumferential surface 31 of the cover 300 to the irradiation side space 8 reaches the points R1, R2 and R3 on the reflecting portion 25.
As shown in FIGS. 1 and 6, the point R1 on the reflective portion 25 is in the vicinity of the edge of the member through hole 252.
The R2 point on the reflecting portion 25 is in the vicinity of the boundary between the holding upper surface portion 238 and the light source attaching portion 230.
The R3 point on the reflecting portion 25 is in the vicinity of the member long side edge portion 253.
Although the R3 point is disposed below the protrusion lower surface portion 322 of the holding projection 32, as described above, the material of the cover 300 is light transmissive, so the holding projection 32 is a point O. Transmit the light from to reach the R3 point.

For example, at the point R2 near the boundary between the holding upper surface portion 238 and the light source attachment portion 230, the lower holding projecting portion 237 of the reflecting portion 25 and the mounting surface 220 of the light source substrate 20 are not smoothly continuous. An irregular asperity may occur on the reflective surface 250, and light from above may not be reflected upward again.
However, as described above, in the light source unit 200, since the reflecting portion 25 is configured to form the smooth reflecting surface 250, light from the point O can be reliably ensured even at a position such as the point R2. It can be reflected upward.

  According to the light source unit 200 configured as described above, light returned from the inner peripheral surface 31 of the cover 300 to the irradiation side space 8 can be efficiently and uniformly reflected. The reflective surface 250 that reflects light can reflect light more efficiently if the reflectance is high and the area is wide. And if the reflective surface 250 to be reflected is a continuous smooth surface, light can be reflected more uniformly.

Further, as shown in FIG. 6, the light reaching the R1 point on the reflecting portion 25 from the O point is reflected at the R1 point and reaches the A1 point on the inner circumferential surface 31 of the cover 300 again. Further, the light reaching the R2 point on the reflecting portion 25 from the O point is reflected at the R2 point, and reaches the A2 point of the inner peripheral surface 31 of the cover 300 again. In addition, the light reaching the R3 point on the reflecting portion 25 from the O point is reflected at the R3 point and reaches the A3 point on the inner circumferential surface 31 of the cover 300 again.
At this time, it is desirable that a range E0 connecting points A1 on both sides, a range E1 connecting points A2 on both sides, and a range E2 connecting points A3 on both sides be as symmetrical as possible centering around point O. The more symmetrical it is, the more uniformly it means that it is reflected.

As described above, the illumination lamp 100 according to the present embodiment has the following features.
The cover 300 is formed of a light transmitting resin material. A pair of holding protrusions 32 for holding the light source unit 2 is formed on the inner circumferential surface 31 of the cover 300. The light source unit 200 is held in the device side space 9 of the cover 300 by the pair of holding projections 32.
The reflecting portion 25 straddles the holding upper surface portion 238 of the light source attaching body 23 and the mounting surface 220 of the substrate 22 whose heights are aligned, and is bonded over a wide area, and the member long side edge portion 253 of the reflecting portion 25 The (longitudinal edge) extends to the vicinity of the long side edge 239 (longitudinal edge) of the light source attachment 23.
Further, the vicinity of the member long side edge portion 253 of the reflection portion 25 is opposed (abuts) to the projection lower surface portion 322 of the holding projection 32 formed on the inner peripheral surface 31 of the cover 300.

  As described above, in the illumination lamp 100, since the member long side edge portion 253 of the reflection portion 25 is pressed by the projection lower surface portion 322 of the holding projection 32, the vicinity of the member long side edge portion 253 of the reflection portion 25 is distorted. It is possible to prevent the reflection part 25 from peeling off. That is, the illumination lamp 100 can ensure high performance and high quality continuously for a long time.

  In the present embodiment, an example of the light source is described using an LED, but the light source may not be an LED. For example, organic EL (organic electroluminescence) may be used as a light source. In addition, the present embodiment is applied to a fluorescent lamp, an incandescent lamp, a mini halogen lamp, and the like as long as the mounting body upper surface portion 2301 (surface portion) smoothly extended around the light source mounting portion is formed. be able to.

  In the present embodiment, the straight tube lamp has been described as the shape of the lamp, but it may not be a straight tube lamp. For example, even in the case of a bulb lamp, an HID lamp, or an annular lamp, the present embodiment can be applied.

Here, a first modification of the present embodiment will be described.
FIG. 7 is an exploded perspective view showing a first modified example of the light source unit 200 according to the present embodiment.
FIG. 7 shows an example in which a guide display 2202 (also referred to as a print display) serving as a guide is provided on the mounting surface 220 of the light source substrate 20 as indicated by a dotted line.

The guide display 2202 is extended in the longitudinal direction at the central portion in the lateral direction of the mounting surface 220.
In addition, the reflecting portion 25 is provided with V-shaped notches at locations serving as edge portions on a line (line 2511) connecting center portions in the lateral direction of both longitudinal direction end portions. For example, not only the longitudinal direction both end notch 2501 located on the line 2511 of the reflection part 25 is provided, but the notch 2502 is provided in the peripheral edge of the member through hole 252.

  When attaching the reflecting portion 25 to the light source attachment 23 on which the light source substrate 20 is disposed, the V-shaped notches 2501 and 2502 provided in the reflecting portion 25 overlap the guide display 2201 of the light source substrate 20. The sheet-like reflection part 25 is bonded to the attachment body upper surface part 2301 (reflection part adhesion part 2304).

Next, a second modification of the present embodiment will be described.
FIG. 8 is an exploded perspective view showing a second modified example of the light source unit 200 according to the present embodiment.
FIG. 8 shows an example in which the outer shape of the light source substrate 20 is used as a guide display.

In the reflecting portion 25, V-shaped notched portions 2503 are provided at positions corresponding to the end portions in the width direction of both end portions in the longitudinal direction of the light source substrate 20. That is, V-shaped notches 2503 are provided at positions corresponding to the long sides of the light source substrate 20 at both end portions in the longitudinal direction of the reflecting portion 25. In the example shown in FIG. 8, guide display (print display) on the light source substrate 20 is not necessary.
One or two V-shaped notches 2503 may be provided at both ends in the longitudinal direction of the sheet-like reflecting part 25.

  When the reflecting portion 25 is attached to the light source attachment 23 on which the light source substrate 20 is disposed, the sheet-like reflecting portion 25 is arranged such that the notch 2503 provided in the reflecting portion 25 and the long side of the light source substrate 20 overlap. Is attached to the upper surface 2301 of the mounting body.

Furthermore, the 3rd modification of this embodiment is explained.
FIG. 9 is an exploded perspective view showing a third modified example of the light source unit 200 according to the present embodiment.
FIG. 9 shows an example in which a guide groove 2350 for guiding is provided on the holding upper surface portion 238 of the light source attachment 23.

The guide groove 2530 is extended in the holding upper surface portion 238 in the longitudinal direction. The guide groove 2530 is provided when forming the light source attachment 23 by extrusion.
Further, V-shaped notched portions 2504 are provided at positions corresponding to the guide grooves 2530 at both end portions in the longitudinal direction of the sheet-like reflecting portion 25. In the example shown in FIG. 9, the guide display (print display) on the light source substrate 20 is unnecessary.

  When the reflecting portion 25 is attached to the light source attachment 23 on which the light source substrate 20 is disposed, the notch 2504 provided in the reflecting portion 25 and the guide groove 2530 provided in the holding upper surface 238 of the light source substrate 20 The sheet-like reflective portion 25 is bonded to the attachment upper surface portion 2301 so as to overlap.

A reflecting portion for the upper surface portion 2301 of the mounting body is provided using a display provided on the substrate 22 for the purpose of coating for manufacturing such as mounting of parts and transportation of the light source substrate 20 without using a dedicated guide display. The position of 25 may be specified.
Furthermore, the shape and dimensions of the peripheral portion of the member through hole 252 provided in the reflecting portion 25 correspond to the component outlines of the plurality of LEDs 21 mounted on the substrate 22, and the position of the reflecting portion 25 opposite to the mounting body upper surface portion 2301 It may be configured to be specified.

  The shape of the notch and the guide groove may be U-shaped or U-shaped. Moreover, it may change to a notch and it is good also as a projection part. In addition, instead of the notched portion, printing may be displayed on the end face of the reflecting portion 25.

Second Embodiment
In the present embodiment, points different from the first embodiment will be mainly described.
In Embodiment 1, the reflection part 25 formed so that three LED21 was exposed from the member through-hole 252 was demonstrated. In the present embodiment, the reflecting portions 25a and 25b different in shape from the reflecting portion 25 described in the first embodiment will be described.

FIG. 10 is a perspective view showing a light source unit 200a according to the present embodiment.
FIG. 11 is a perspective view showing a light source unit 200b according to the present embodiment.
In FIGS. 10 and 11, components having the same functions as those described in the first embodiment may be denoted by the same reference numerals, and the description thereof may be omitted.

As shown in FIG. 10, the light source unit 200a includes a reflecting portion 25a attached across the holding upper surface portion 238 of the light source attachment 23 and the mounting surface 220 of the substrate 22. A member through hole 252a is formed in the reflecting portion 25a. The shape of the member through hole 252a is different from the reflection part 25 described in the first embodiment, and is a shape in which one LED 21 is exposed from one member through hole 252a.
According to the reflecting portion 25a as shown in FIG. 10, the area of the reflecting surface 250a can be increased, so that the light utilization rate of the illumination lamp 100 is further improved, and the light emitted from the illumination lamp 100 is made more uniform. can do.

As shown in FIG. 11, the light source unit 200 b includes a reflecting portion 25 b attached across the holding upper surface portion 238 of the light source attachment 23 and the mounting surface 220 of the substrate 22. Unlike the reflective part 25 of the first embodiment, the reflective part 25b is composed of two reflective parts 25b disposed along the longitudinal direction on both sides of the plurality of LEDs 21 aligned in the longitudinal direction. The member through hole 252b is a region between the two reflecting portions 25b, and the LED 21 is configured to be exposed from this region.
According to the reflection part 25b as shown in FIG. 11, while being able to hold down material cost and a manufacturing cost, the positioning difficulty at the time of bonding operation can be reduced and workability | operativity can be improved.

Third Embodiment
In the present embodiment, points different from the first and second embodiments will be mainly described.
In the first and second embodiments, the light source substrate 20 in which the plurality of LEDs 21 are arranged in one line in the longitudinal direction on the mounting surface 220 of the substrate 22 has been described. In the present embodiment, a light source unit 200c using a light source substrate 20c in which the arrangement of the LEDs 21 is different from that described in the first embodiment will be described.

FIG. 12 is a perspective view showing a light source unit 200c according to the present embodiment.
FIG. 13 is a cross-sectional view showing a light source unit 200c according to the present embodiment, and is a cross-sectional view taken along the line CC in FIG.
12 and 13, the same reference numerals may be given to components having the same functions as the components described in the first and second embodiments, and the description thereof may be omitted.

  As shown in FIG. 12, the light source unit 200c includes a light source substrate 20c. In the light source substrate 20c, two rows of LEDs 21 arranged in the longitudinal direction are arranged on the mounting surface 220 of the substrate 22. In other words, a plurality of sets of LEDs 21 in which two LEDs 21 are arranged in the short direction are arranged in the longitudinal direction.

  Further, as shown in FIGS. 12 and 13, the light source unit 200 c includes a reflecting portion 25 c attached across the holding upper surface portion 238 of the light source attachment 23 and the mounting surface 220 of the substrate 22. A member through hole 252c is formed in the reflection portion 25c.

The member through hole 252c is shaped such that the set of three LEDs 21 (ie, six LEDs 21) is exposed from the hole. In the present embodiment, a set of three LEDs 21 is exposed from one member through hole 252 c, but for example, the member through holes 252 are formed for every two sets of LEDs 21, that is, for every four LEDs 21. It may be formed per set of one LED 21, that is, every two LEDs 21.
Further, as described in the second embodiment, one member through hole 252a may be formed for each LED 21 (see FIG. 10), and two reflecting portions 25b are provided on both sides in the short direction of the LED 21. You may arrange (refer FIG. 11).

In FIG. 12, the LEDs 21 are arranged in two rows, but the LEDs 21 may be arranged in three or more rows. Also, the LEDs 21 may be arranged in a zigzag or checkered pattern.
It is preferable to flexibly form the member through holes 252 in accordance with the arrangement of the LEDs 21.

Fourth Embodiment
In the present embodiment, points different from the first embodiment will be mainly described.
In the present embodiment, a light source unit 200d including a light source mounting body 23d having a shape different from that of the light source mounting body 23 described in Embodiment 1 and an illumination lamp 100d including the light source unit 200d will be described.

FIG. 14 is a perspective view showing a light source unit 200d according to the present embodiment.
FIG. 15 is a cross-sectional view showing a light source unit 200d according to the present embodiment, and is a cross-sectional view along DD in FIG.
FIG. 16 is a perspective view schematically showing an illumination lamp 100 d according to the present embodiment.
FIG. 17 is a cross-sectional view schematically showing an illumination lamp 100d according to the present embodiment, and is a cross-sectional view taken along the line E-E in FIG.
In FIGS. 14-17, the same code | symbol may be attached | subjected to the structure part which has a function similar to the structure part demonstrated in Embodiment 1, and the description may be abbreviate | omitted.

First, the configuration of the light source unit 200d will be described with reference to FIGS.
14 and 15, the difference from FIGS. 1 and 2 is that a light source attaching body 23d having a different shape of the holding projection portion 237d and a shape of the screw fixing portion 234d is provided. The other components are the same as those described in the first embodiment, and thus the description thereof is omitted.

  As shown in FIG. 15, the light source attaching body 23d includes an L-shaped projecting portion 2371 which protrudes downward in an L shape from the holding lower surface portion 2381 of the holding projecting portion 237d. The L-shaped protruding portion 2371 and the holding lower surface portion 2381 form an engaging groove portion 2373 whose outer side is open. In the L-shaped projecting portion 2371, a surface to be an inner surface of the engagement groove 2373 is a gripping surface 2372.

In addition, the light source attachment 23 d includes a cylindrical screw fixing portion 234 d.
The screw fixing portion 234 d has a pair of cylindrical wall portions 2341 formed to project downward from the lower mounting portion lower portion 2302 of the light source mounting portion 230 and a circular arc shape from the lower end portion of the pair of cylindrical wall portions 2341. It is comprised from a pair of formed circular arc part 236d and the screw hole formation part 2351 which continues from an inner end of a pair of circular arc parts 236d. The screw hole forming portion 2351 is provided so as to form a screw hole 235 in a substantially cylindrical shape formed by the mounting portion lower portion 2302, the pair of cylindrical wall portions 2341 and the pair of arc portions 236d. That is, the screw fixing portion 234d has a double cylinder structure.

Next, the configuration of the illumination lamp 100d will be described with reference to FIGS.
16 and 17, the difference from FIGS. 3 and 4 is the engagement structure between the holding projection portion 237d and the holding projection 32, and the shape of the screw fixing portion 234d. The configuration of the cover 300 is the same as that described in the first embodiment. The other components are the same as those described in the first embodiment, and thus the description thereof is omitted.

As shown in FIGS. 16 and 17, the holding projection 32 of the cover 300 engages with the engagement groove 2373 of the light source unit 200 d. The light source unit 200 d is slid in the longitudinal direction while the engagement groove 2373 and the holding projection 32 are engaged, and is housed inside the cover 300.
Further, as shown in FIG. 17, the arc surface 2361 which is the lower surface of the arc portion 236d is fixed to the inner circumferential surface 31 of the cover via the adhesive member 4 in the same manner as described in the first embodiment. Be done.

  As described above, according to the illumination lamp 100d according to the present embodiment, since the engagement groove 2373 of the light source unit 200d and the holding projection 32 of the cover 300 can be reliably engaged, the light source unit 200d can be obtained. The cover 300 can be securely attached without rattling.

  Further, since the screw fixing portion 234d has a double cylinder structure and is provided with the engaging groove portion 2373 configured by the holding protruding portion 237a and the L-shaped protruding portion 2371, the light source attaching body 23d is bent. It becomes difficult structure. Therefore, the rigidity of the light source attachment 23 d (heat sink attachment), the light source unit 200 d (light unit), and the illumination lamp 100 d is improved, and a longer illumination lamp (straight tube lamp) can be realized.

Embodiment 5
In the present embodiment, points different from the first embodiment will be mainly described.
In the first embodiment, the case where the reflecting surface 250 of the reflecting unit 25 is substantially planar has been described. In the present embodiment, a light source unit 200e having a reflecting surface 250e which is not a flat surface but is a convex curved surface smoothly projected to the upper side (irradiation side), and an illumination lamp 100e provided with the light source unit 200e will be described. .

FIG. 18 is a cross-sectional view of the illumination lamp 100e according to the present embodiment.
In FIG. 18, components having the same functions as those described in the first embodiment may be denoted by the same reference numerals, and the description thereof may be omitted.

As shown in FIG. 18, the light source unit 200e is configured such that the mounting body upper surface portion 2301e forms a smooth convex curved surface shape toward the upper side (irradiation side). That is, the attachment body upper surface portion 2301 e is configured such that the reflection surface 250 e of the reflection portion 25 e forms a part of a convex curved surface in which the central portion in the short direction protrudes in the direction in which light is emitted from the LED 21.
The mounting body upper surface portion 2301 e includes the holding upper surface portion 238 e of the light source mounting body 23 e and the mounting surface 220 of the light source substrate 20, as described in the first embodiment.

  As shown in FIG. 18, the mounting surface 220 of the light source substrate 20 is substantially planar. For this reason, one holding upper surface portion 238e of the light source attaching body 23e rises in a smooth curved surface from the one long side edge portion 239 toward the central portion and rises at a boundary portion with the light source attaching portion 230 (one R2 The holding projection portion 237 is formed such that the inclination is substantially zero at the point portion). And in the mounting surface 220 portion, the inclination is a plane of 0, and on the other holding upper surface portion 238e, it is a curved surface which smoothly falls from a state where the inclination is approximately 0 at the boundary portion with the light source attaching portion 230 (the other R2 point portion). The other long side edge portion 239 is formed to draw. It is desirable that the shapes of the holding upper surface portions 238e on both sides be symmetrical with respect to the central axis of the center in the lateral direction.

  The mounting surface 220 of the light source substrate 20 may be formed so as to have a smooth convex curved surface which is continuous with the holding upper surface portion 238e except the portion where the LED 21 is mounted.

  Further, as described in the present embodiment, in the case of a straight tube lamp, it is desirable that the reflection portion contact portion 2304 and the reflection surface 250 be symmetrical with respect to the central axis of the center in the short direction. However, for example, in the case of a light bulb shaped lamp having a light source at the center of a circular reflecting surface, it is preferable that the reflecting portion contact portion 2304 and the reflecting surface 250 form a curved surface substantially symmetrical about the light source. .

  As shown in FIG. 18, the holding projection 32e of the cover 300 is formed slightly upward toward the central portion in accordance with the shape of the attachment upper surface 2301e. The holding projection 32e is formed such that the projection lower surface portion 322e of the holding projection 32e and the holding upper surface portion 238e reliably abut on each other via the reflecting portion 25e. When the projection lower surface portion 322e and the holding upper surface portion 238e abut against each other reliably, it is possible to prevent the reflection portion 25e from being curled or peeled off.

  As described above, according to the illumination lamp 100e according to the present embodiment, it is possible to distribute light uniformly in a wider range.

Sixth Embodiment
In this embodiment, points different from Embodiments 1 and 5 will be mainly described.
In the present embodiment, unlike the first and fifth embodiments, it is not a flat surface or a convex curved surface smoothly projecting to the upper side (irradiation side), but is smoothly recessed to the lower side (the opposite side to the irradiation side). A light source unit 200f having a concave concave curved reflecting surface 250f and an illumination lamp 100f having the light source unit 200f will be described.

FIG. 19 is a cross-sectional view of the illumination lamp 100f according to the present embodiment.
In FIG. 19, components having the same functions as those described in the first embodiment may be denoted by the same reference numerals, and the description thereof may be omitted.

As shown in FIG. 19, the light source unit 200f is configured such that the mounting body upper surface portion 2301f has a smooth concave curved surface shape toward the lower side. That is, in the reflecting surface 250f of the reflecting portion 25f, the mounting body upper surface portion 2301f is configured such that the central portion in the short side direction forms a part of a concave curved surface recessed in the direction opposite to the light emitting direction from the LED 21 Be done.
The mounting body upper surface portion 2301 f includes the holding upper surface portion 238 f of the light source mounting body 23 f and the mounting surface 220 of the light source substrate 20, as in the first embodiment.

  As shown in FIG. 19, the mounting surface 220 of the light source substrate 20 is substantially planar. For this reason, one holding upper surface portion 238 f of the light source attaching body 23 f draws a smooth curved surface from one long side edge portion 239 toward the central portion and descends, and a boundary portion with the light source attaching portion 230 (one R2 The holding projection portion 237 is formed such that the inclination is substantially zero at the point portion). A curved surface which has a slope of 0 at the mounting surface 220 and a smooth rise from a state where the slope is approximately 0 at the boundary with the light source attachment portion 230 (the other R2 point portion) at the other holding upper surface 238f The other long side edge portion 239 is formed to draw. It is desirable that the shapes of the holding upper surface portions 238f on both sides be symmetrical with respect to the central axis of the center in the lateral direction.

  The mounting surface 220 of the light source substrate 20 may be formed so as to have a smooth concave curved surface which is continuous with the holding upper surface portion 238 f except for the portion where the LED 21 is mounted.

  Further, as in the case of the fifth embodiment, for example, in the case of a light bulb shaped lamp having a light source at the center of a circular reflecting surface, the reflecting portion contact portion 2304 and the reflecting surface 250 have substantially point symmetry about the light source. It is preferable to form the following curved surface.

  As shown in FIG. 19, the holding projection 32f of the cover 300 is formed slightly downward toward the central portion in accordance with the shape of the attachment upper surface 2301f. The holding projection 32f is formed such that the projection lower surface portion 322f of the holding projection 32f and the holding upper surface portion 238f reliably abut on each other via the reflecting portion 25f. When the projection lower surface portion 322f and the holding upper surface portion 238f abut against each other reliably, it is possible to prevent the reflection portion 25f from being curled or peeled off.

  As mentioned above, according to the illumination lamp 100f which concerns on this Embodiment, the irradiation range of light can be limited to a narrow range. That is, light can be collected.

Embodiment 7
In the present embodiment, points different from the first embodiment will be mainly described.
In the first embodiment, the light source unit 200 in which the light source substrate 20 is attached to the light source attachment 23 has been described. In the present embodiment, a light source unit 200g in which the LED 21 is mounted directly on the light source mounting body 23g instead of the substrate 22 and a lighting lamp 100g provided with the light source unit 200g will be described.

FIG. 20 is a perspective view showing a light source unit 200g according to the present embodiment.
FIG. 21 is a cross-sectional view showing a light source unit 200g according to the present embodiment, and is a cross-sectional view along the line F-F in FIG.
FIG. 22 is a perspective view schematically showing an illumination lamp 100g according to the present embodiment.
FIG. 23 is a cross-sectional view schematically showing an illumination lamp 100g according to the present embodiment, and is a G-G cross-sectional view in FIG.
20-23, the same code | symbol may be attached | subjected to the structure part which has a function similar to the structure part demonstrated in Embodiment 1, and the description may be abbreviate | omitted.

As shown in FIGS. 20 and 21, the light source mounting body 23g of the light source unit 200g does not have the light source mounting portion 230 described in the first embodiment, and the LED 21 is directly mounted on the mounting body upper surface portion 2301g of the light source mounting body 23g. ing. The light source attachment 23 g has a wiring pattern (not shown) for supplying a lighting current to the LED 21. And in the light source attaching body 23g, an insulating member (not shown) may be laid in order to maintain the electrical insulation with a wiring pattern (not shown) as needed.
As shown in FIG. 21, the light source mounting body 23 g is provided with a light source mounting portion 230 g for mounting the LED 21 along the longitudinal direction at a central portion in the short side direction. As described in the first to sixth embodiments, the LEDs 21 may be arranged in one row, two rows, three rows, or the like in the longitudinal direction, or may be arranged in a zigzag or checkered pattern.

According to the light source unit 200g according to the present embodiment, the attachment upper surface portion 2301g in contact with the member bonding surface 251 of the reflection portion 25 is the upper surface of the light source attachment 23g which is one component. Therefore, the mounting body upper surface portion 2301 g does not have unevenness or a gap. Therefore, the reflective surface 250 of the reflective part 25 becomes a smoother plane.
Moreover, since it is not necessary to provide the recessed part 2303 (refer FIG. 1) in the attachment body upper surface part 2301g, the light source unit 200g becomes a structure which does not bend easily.

  The other configuration is the same as that described in the first to sixth embodiments.

  As mentioned above, according to the illumination lamp 100g which concerns on this Embodiment, a number of parts and a process operation can be reduced, and a manufacturing cost can be held down. Further, the reflection surface 250 of the reflection unit 25 can be made smoother, and light can be reflected more uniformly. In addition, the light source unit 200g is not easily bent, and the rigidity is improved.

Eighth Embodiment
In this embodiment, a lighting device 800 using the lighting lamps 100 and 100 a to 100 g (hereinafter collectively referred to as the lighting lamp 100) described in the first to seventh embodiments will be described.
FIG. 24 is a perspective view of a lighting device 800 according to the present embodiment.

As shown in FIG. 24, the lighting device 800 includes the lighting lamp 100 in the shape of a straight pipe according to the first to seventh embodiments, and the lighting fixture 810 to which the lighting lamp 100 is attached.
The luminaire 810 includes a luminaire main body 811 extending in the longitudinal direction, and earth sockets 812 and a power feeding socket 813 disposed at both ends in the longitudinal direction of the luminaire main body 811.

  The grounding socket 812 and the feeding socket 813 can mechanically hold the illumination lamp 100. In the illumination lamp 100, the feed terminal 51 of the feed cap 5 is connected to the terminal (not shown) of the feed socket 813, and the ground terminal 61 of the ground cap 6 is connected to the terminal (not shown) of the ground socket 812. As a result, the lighting device body 811 is electrically connected. The ground socket 812 may be configured to mechanically hold the illumination lamp 100 and not be electrically connected to the illumination lamp 100.

  This lighting device 800 comprises a long lighting fixture 810 and a lighting lamp 100 in the form of a straight tube, and the lighting fixture body 811 directs the lighting lamp 100 into the room and the ceiling or wall of the room. And the like, and when the illumination lamp 100 is turned on, the indoor space is irradiated with light.

  The lighting fixture main body 811 is a housing which accommodates the lighting device 814 (power supply) inside and has a fixture (not shown) such as a V-shaped spring or a joint. The lighting fixture 810 is attached to the ceiling or wall by a fixture. In addition, the lighting device 814 has a switch (not shown) and the like, and is housed in a housing. The lighting device 814 supplies power from the external power supply to the power feeding socket 813 when the switch is ON, and stops the power supply to the power feeding socket 813 when the switch is OFF. In other words, the lighting device 800 can supply power to the lighting lamp 100 through the power supply socket 813.

  In the case where the lighting device 814 is housed in a housing, in order to efficiently dissipate the operation heat of the lighting device 814, the lighting device main body 811 and the housing use a material such as metal having high thermal conductivity such as metal. It is formed. Note that the lighting device 814 may not be housed in the housing.

  In this embodiment, the luminaire 810 and the luminaire 800 to which the straight tube lamp is attached are described. However, the shapes of the lighting fixture and the lighting lamp can be appropriately changed depending on the shape of the mounted lamp, the purpose and application of the lighting device, the mounting environment, and the like.

  In the first to eighth embodiments described above, a flat surface, a convex curved surface, and a concave curved surface have been described as examples of the shapes of the mounting body upper surface portion and the reflecting surface of the reflecting portion. In addition to such a shape, as long as the shape forms a smooth curved surface, it may be a wave shape, a dome shape, a mountain shape, or the like. The shape of the mounting body upper surface portion and the reflecting surface of the reflecting portion may be any shape as long as it has a continuous differential coefficient in any region of the continuous mounting body upper surface portion (continuous surface) or the reflecting surface .

  Moreover, as a method of forming the reflection part, the sheet-like or gel-like reflection member is mainly described as being attached to the upper surface part (reflection part close contact part) of the attachment of the light source attachment. However, the reflective portion may be formed by applying the material constituting the reflective portion to the attachment upper surface portion (reflective portion contact portion). That is, the material constituting the reflective portion may have a liquid property that can be applied, and the reflective portion may be formed by drying after application.

  As described above, according to the first to eighth embodiments, it is possible to realize high light utilization efficiency and high quality light irradiation with a simple configuration and assembly procedure that requires almost no additional cost. A light source unit for a lighting lamp, a lighting lamp and a lighting device can be provided.

  As mentioned above, although embodiment of this invention was described, you may combine and implement two or more of these embodiment. Alternatively, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be implemented in combination. The present invention is not limited to these embodiments, and various modifications can be made as needed.

  DESCRIPTION OF SYMBOLS 4 adhesion member, 5 electric power supply base, 6 earth base, 7 screw, 8 irradiation side space, 9 apparatus side space, 20 light source board | substrate, 21 LED, 22 board | substrates, 23 light source attachment body, 25 reflection part, 26 adhesion member, 30 outer periphery Surface, 31 inner circumferential surface, 32 holding projection, 50 feed base, 51 feed terminal, 60 ground base, 61 ground terminal, 100 illumination lamp, 200 light source unit, 220 mounting surface, 221 adhesive surface, 230 light source Mounting part, 231 mounting surface, 232 side, 233 groove, 234 screw fixing part, 235 screw hole, 236 arc part, 237 holding projection part, 238 holding top part, 239 long side edge, 240 short side edge, Reference numeral 250 reflective surface, 251 member bonding surface, 252 member through hole, 253 member long side edge portion, 300 cover, 320 protrusion side surface portion, 321 protrusion upper surface portion , 322 projection lower surface portion, 500 bottom wall portion, 501 circumferential wall portion, 502 screw hole, 600 bottom wall portion, 601 circumferential wall portion, 602 screw hole, 800 illumination device, 810 illumination fixture, 811 illumination fixture main body, 812 ground socket, 813 power supply socket 814 lighting device 2201 guide display 2301 mounting body upper surface portion 2302 mounting portion lower portion 2303 recessed portion 2304 reflective portion contact portion 2341 cylindrical wall portion 2350 guide groove 2351 screw hole forming portion 2361 arc surface , 2371 L-shaped projecting portion, 2372 gripping surface, 2373 engaging groove portion, 2381 holding lower surface portion, 2501, 2502, 2503, 2504 notched portion, 2511 wire.

Claims (10)

Light source,
A light source substrate on which the light source is mounted on a mounting surface;
A concave portion corresponding to the shape of the light source substrate is provided as a light source attachment portion, and a smooth surface portion which is a curved surface continuously formed from the light source attachment portion is provided, and the light source substrate is attached to the light source attachment portion A light source mounting body in which the mounting surface and the surface portion form a smoothly continuous surface in a state;
It covers the previously specified region of the mounting surface and the surface portion to abut the mounting surface and the surface portion, and has a reflecting portion laid on the light source attachment body by exposing the light source. Light source unit. The reflection unit is
The light source unit according to claim 1, wherein a through hole is formed corresponding to the position of the light source attached to the light source attachment. The light source is
The light source unit according to claim 2, which is exposed from the through hole.   The light source unit according to any one of claims 1 to 3, wherein a guide for specifying the area is provided on any of the surface portion or the mounting surface. The reflection unit is
The light source unit according to any one of claims 1 to 4, wherein the light source unit is installed in close contact with the area specified in advance on the surface portion or the mounting surface. The reflection unit is
The light source unit according to any one of claims 1 to 5, wherein any one of a sheet-like, gel-like, and liquid-like reflection member is laid on the surface portion or the area specified in advance on the mounting surface. The face portion is
The light source unit according to any one of claims 1 to 6 in which the convex curved surface light is smoothly flared orientation for emitting is formed from the light source. The face portion is
The light source unit according to any one of claims 1 to 6 which orientation a concave curved surface that smoothly recessed in the opposite direction which light is emitted is formed from the light source. A light source unit according to any one of claims 1 to 8 ,
An illumination lamp comprising: a light transmissive cover that covers the light source and is attached to the light source attachment. A lighting lamp according to claim 9 ;
A lighting apparatus comprising: a lighting fixture to which the lighting lamp is attached and which supplies power to the lighting lamp to turn on the lighting lamp.

Images