CN204099932U

CN204099932U - Illumination light source and lighting device

Info

Publication number: CN204099932U
Application number: CN201290001181.4U
Authority: CN
Inventors: 仕田智; 真锅由雄; 永井秀男; 井上诚; 皆川明信; 植本隆在
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2012-03-26
Filing date: 2012-12-13
Publication date: 2015-01-14
Anticipated expiration: 2022-12-13
Also published as: JPWO2013145054A1; JP5427977B2; WO2013145054A1; JP2013232441A; JP5374668B1

Abstract

Be made up of the illumination light source (1) of peripheral device enclosed globe shade (30), framework (60) and lamp holder (70), possess the light emitting module (10) be configured in described peripheral device.Enclosed globe shade (30) has protuberance to the protrusion (31) than the position of framework (60) more lateral, with the central shaft of this illumination light source (1) be benchmark the angular range of more than-170 ° less than+170 ° in luminous intensity be, more than 1/2 of the center luminous intensity of the central shaft of this illumination light source (1).

Description

Illumination light source and lighting device

Technical field

The utility model relates to, and possesses the illumination light source of the light-emitting component of light emitting diode (LED:Light Emitting Diode) etc. and make use of the lighting device of this illumination light source.

Background technology

LED is high efficiency and space-efficient light source, and for lamp etc.Wherein, make use of the LED of LED, as the replacement illumination light source constantly studied exploitation of in the past known fluorescent lamp and incandescent lamp bulb.

For this illumination light source, such as, openly make use of the bulb-shaped LED of LED in patent document 1.Figure 14 is the sectional view of the bulb-shaped LED in the past disclosed in patent document 1.

As Figure 14 illustrates, bulb-shaped LED 1000 in the past possesses, hemispheric enclosed globe shade 1030, powered lamp holder 1070 and metal framework (peripheral components) 1060.

Framework 1060 has, the recess 1063 of the discoideus light source department of assembly 1062 expose the perimembranous 1061 in outside, being integrally formed with this perimembranous 1061 and the inner side that is formed on perimembranous 1061.On light source department of assembly 1062, be equipped with the light emitting module 1010 possessing multiple LED.And, at the inner surface of the recess 1063 of framework 1060, being provided with the insulating element 1040 formed along this inner surface configuration, in the inside of insulating element 1040, having accommodated the lamp circuit 1140 for making LED point lamp.

(prior art document)

(patent document)

Patent document 1: Japanese Unexamined Patent Publication 2006-313717 publication

But Problems existing is in bulb-shaped LED 1000 in the past, the light towards lamp holder side among the injection light of light emitting module 1010 is covered by framework 1060, and therefore, the light distribution angle of illumination light source is narrow.

Especially, LED has with the characteristic of the radiation angle of lambert's type luminous intensity distribution narrow (about 120 °), and the LED that therefore make use of LED is difficult to realize broad light distribution angle.

Utility model content

In view of described problem, the purpose of this utility model is to provide the illumination light source and lighting device with broad light distribution angle.

In order to solve described problem, an embodiment of the illumination light source that the utility model relates to, wherein, peripheral device is formed by enclosed globe shade, framework and lamp holder, described illumination light source possesses, be configured in the light emitting module in described peripheral device, described enclosed globe shade has protrusion, this protrusion swells to the position than described framework more lateral, with the central shaft of this illumination light source be benchmark the angular range of more than-170 ° less than+170 ° in luminous intensity be, more than 1/2 of the center luminous intensity of the central shaft of this illumination light source.

And then, an embodiment of the illumination light source that the utility model relates to, wherein, low luminous intensity angular range is there is in the described angular range of less than+170 ° more than-170 °, in described low luminous intensity angular range, the luminous intensity of an angle, is less than the luminous intensity of the absolute value angle larger than this angle.

And then in an embodiment of the illumination light source related at the utility model, preferably, described low luminous intensity angular range is, take the central shaft of this illumination light source as-60 ° to+60 ° of benchmark.

And, another embodiment of the illumination light source that the utility model relates to, wherein, by enclosed globe shade, framework and lamp holder form peripheral device, described illumination light source possesses, be configured in the light emitting module in described peripheral device, described enclosed globe shade has protrusion, this protrusion swells to the position than described framework more lateral, in distribution curve flux figure, when by when being 1 using the maximum of the luminous intensity of the distribution curve flux of this illumination light source by this illumination light source distribution curve flux around the area of part as S1, and, when by when being 1 using the maximum of the luminous intensity of the distribution curve flux of incandescent lamp bulb by this incandescent lamp bulb distribution curve flux around the area of part as S2, become S1 > 0.9 × S2.

And then, in an embodiment of the illumination light source related at the utility model, preferably, possess the optics be configured in described peripheral device, described optics, change the direct of travel of the light that described light emitting module sends.

And then an embodiment of the illumination light source that the utility model relates to, wherein, described optics is configured to, and makes the anaclasis that described light emitting module sends, thus changes the direct of travel of the light that described light emitting module sends.

And then an embodiment of the illumination light source that the utility model relates to, wherein, described optics is configured to, the light reflection making described light emitting module send, thus changes the direct of travel of the light that described light emitting module sends.

And then in an embodiment of the illumination light source related at the utility model, preferably, the outer surface of described optics is implemented mirror process.

And then an embodiment of the illumination light source that the utility model relates to, wherein, described optics is configured between described light emitting module and described enclosed globe shade.

And then, an embodiment of the illumination light source that the utility model relates to, wherein, described optics is configured to, with described light emitting module from.

And then, in an embodiment of the illumination light source related at the utility model, preferably, the area of the light emitting module side of described optics is larger than the area of the light-emitting zone of described light emitting module.

And then an embodiment of the illumination light source that the utility model relates to, wherein, described optics contacts with described light emitting module.

And then, in an embodiment of the illumination light source related at the utility model, preferably, the area of the light emitting module side of described optics is less than the area of the light-emitting zone of described light emitting module.

And then in an embodiment of the illumination light source related at the utility model, preferably, described protrusion is implemented for the DIFFUSION TREATMENT making light spread.

And then, in an embodiment of the illumination light source related at the utility model, preferably, described illumination light source possesses the base station for loading described light emitting module, the area of the light-emitting zone of described light emitting module is, less than 8% of the area of the enclosed globe shade opening inner region above described base station.

And then an embodiment of the illumination light source that the utility model relates to, wherein, described enclosed globe shade is made up of glass or resin.

And then, in an embodiment of the illumination light source related at the utility model, also can be that described enclosed globe shade is polyhedron.

And then an embodiment of the illumination light source that the utility model relates to, wherein, described light emitting module has, installation base plate and be installed in the semiconductor light-emitting elements of described installation base plate, and described semiconductor light-emitting elements is installed on described installation base plate.

And then, an embodiment of the illumination light source that the utility model relates to, wherein, described light emitting module has, install base station and be installed in the semiconductor light-emitting elements of described installation base station, described semiconductor light-emitting elements, is installed at least two faces of described installation base station.

And then in an embodiment of the illumination light source related at the utility model, preferably, described light emitting module and described optics are configured on lamp axle.

Further, an embodiment of the lighting device that the utility model relates to, wherein, possesses described illumination light source.

According to the utility model, illumination light source and the lighting device with broad light distribution angle can be realized.

Accompanying drawing explanation

Fig. 1 is the part incised notch oblique view of the illumination light source that embodiment 1 of the present utility model relates to.

Fig. 2 is the sectional view of the illumination light source that embodiment 1 of the present utility model relates to.

Fig. 3 is the plane of the light emitting module of illumination light source and the configuration relation of optics related to for illustration of embodiment 1 of the present utility model.

Fig. 4 be in the illumination light source that relates to of embodiment 1 of the present utility model propagate optics from the light of light emitting module injection time the key diagram of situation.

Fig. 5 be in the illumination light source that relates to of embodiment 1 of the present utility model be extracted to illumination light source outside from the light of light emitting module injection time the key diagram of situation.

Fig. 6 is the distribution curve flux figure of the illumination light source that embodiment 1 of the present utility model relates to.

Fig. 7 be the distribution curve flux that the illumination light source that embodiment 1 of the present utility model relates to is shown join photodistributed figure.

Fig. 8 is the part incised notch oblique view of the illumination light source that embodiment 2 of the present utility model relates to.

Fig. 9 is the sectional view of the illumination light source that embodiment 2 of the present utility model relates to.

Figure 10 be illustrate in Fig. 9 by two point locking wire around the amplification sectional view of part.

Figure 11 is the figure of the optics of illumination light source and the configuration relation of light emitting module illustrating that variation 1 of the present utility model relates to.

Figure 12 is the key diagram of the DIFFUSION TREATMENT that the enclosed globe shade to illumination light source that variation 2 of the present utility model relates to is implemented.

Figure 13 is the part incised notch oblique view of the illumination light source that variation 3 of the present utility model relates to.

Figure 14 is the sectional view of the bulb-shaped LED in the past disclosed in patent document 1.

Detailed description of the invention

Below, the illumination light source related to for embodiment of the present utility model and lighting device, be described with reference to accompanying drawing.And the embodiment below illustrated, all illustrates a preferred object lesson of the present utility model.Therefore, the allocation position of the numerical value shown in following embodiment, shape, material, inscape, inscape and connect the order etc. of form, step, step, is an example, instead of limits aim of the present utility model.Therefore, for among the inscape of following embodiment, there is no the inscape recorded in independent claims that upper concept of the present utility model is shown, might not need to realize problem of the present utility model, but, be illustrated as the key element forming preferred form.And each figure is ideograph, might not be the figure tightly illustrated.Further, in each figure, identical symbol is enclosed for identical inscape.Further, in this manual, the symbol " ~ " utilized when number range is shown, comprises the numerical value at its two ends.

(embodiment 1)

First, for the structure of the illumination light source that embodiment 1 of the present utility model relates to, Fig. 1 and Fig. 2 is utilized to be described.Fig. 1 is the part incised notch oblique view of the illumination light source that embodiment 1 of the present utility model relates to.Fig. 2 is the sectional view of the illumination light source that embodiment 1 of the present utility model relates to.And in Fig. 1 and Fig. 2, being the front of illumination light source above accompanying drawing, is the rear of illumination light source below accompanying drawing.At this, in this manual, " front " refers to, if be the center of illumination light source with the mid point of the lower end (top of lamp holder) of the upper end of illumination light source (top of enclosed globe shade) and illumination light source, the direction of enclosed globe shade side time viewed from this center, " rear " refers to, the direction of lamp holder side time viewed from the center of illumination light source.Further, in fig. 2, the chain-dotted line that the above-below direction along accompanying drawing marks illustrates the lamp axle J (central shaft) of illumination light source, and in the present embodiment, lamp axle J is consistent with enclosed globe shade axle.Further, lamp axle J is, becomes the axle of pivot when illumination light source 1 being assembled to the socket of lighting device (not illustrating), consistent with the rotating shaft of lamp holder 70.

As Fig. 1 and Fig. 2 illustrates, the illumination light source 1 that the present embodiment relates to is, become the bulb-shaped LED of the substitute of lamp-bulb type fluorescent lamp or incandescent lamp bulb, possess, as the light emitting module 10 of light source, carry the base station 20 of light emitting module 10, cover the enclosed globe shade 30 of light emitting module 10, for making the circuit unit 40 (not illustrating in Fig. 1) of light emitting module 10 lighting, the circuit retainer 50 of collecting circuit unit 40, cover the framework 60 of circuit retainer 50, the lamp holder 70 be electrically connected with circuit unit 40, and for change the light that light emitting module 10 sends direct of travel (towards) optics 80.

For illumination light source 1, form peripheral device by enclosed globe shade 30 and framework 60 and lamp holder 70, collecting light emitting module 10 and optics 80 in this peripheral device.Be configured in the peripheral device of the present embodiment, the lamp direction of principal axis length of the total of framework 60 and lamp holder 70, longer than the lamp direction of principal axis length of enclosed globe shade 30.

Further, enclosed globe shade 30 has, and protuberance is to the protrusion 31 than the position of framework 60 more lateral.And illumination light source 1 is configured to, with the lamp axle J of this illumination light source 1 be the regulation of more than-170 ° less than+170 ° of benchmark angular range in luminous intensity become more than 1/2 of the center luminous intensity of the lamp axle J of this illumination light source 1.In the present embodiment, this structure is realized by the protrusion 31 of enclosed globe shade 30 and optics 80.Moreover, it can be, unfavorable optics 80 and only realize this structure by protrusion 31.Or, also can be do not utilize protrusion 31 and only realize this structure by optics 80.

Below, for each component parts of illumination light source 1, Fig. 1 and Fig. 2 is utilized to be described in detail.

[light emitting module]

Light emitting module 10 is, such as, releases the LED module of the light of regulation, is configured in the inside of enclosed globe shade 30.As shown in Figure 2, light emitting module 10 possesses, and installation base plate 11, is installed in the semiconductor light-emitting elements 12 of installation base plate 11 and on installation base plate 11, is formed the seal 13 of sealing semiconductor light-emitting component 12.And in the present embodiment, light emitting module 10 is configured to, lamp axle J intersects with installation base plate 11.

Installation base plate 11 is, such as, on overlooking, slightly foursquare plate-like substrate, is assembled on base station 20.For installation base plate 11, such as, the ceramic substrate be made up of aluminium oxide etc. can be utilized.

Semiconductor light-emitting elements 12, the one side of installation base plate 11 is provided with multiple, and in the present embodiment, multiple semiconductor light-emitting elements 12, is configured to plane in the point-symmetric mode become centered by lamp axle J with rectangular.Further, each semiconductor light-emitting elements 12, is mounted towards the posture in the front of illumination light source with respective key light injection direction.

Semiconductor light-emitting elements 12 is, such as LED (LED chip).But, for semiconductor light-emitting elements 12, also can be the element beyond LED, such as, semiconductor laser, organic EL element or inorganic EL devices can be utilized.

And the quantity of semiconductor light-emitting elements 12, is not limited only to multiple, and can be one.Further, the configuration of semiconductor light-emitting elements 12, is also not limited only to rectangular, such as, also can be configured to circular etc. ring-type.And then, for the posture of semiconductor light-emitting elements 12, do not need the whole in the direction along lamp axle J direction of semiconductor light-emitting elements 12, and can be mounted towards the posture in the direction tilted relative to lamp axle J with a part.Accordingly, the controlling of the light distribution angle of lamp improves, therefore, it is possible to carry out inching, to become preferred light distribution characteristic.

And, be provided with at light emitting module 10, the pair of electrodes (not illustrating) that a pair electric wiring (lead-in wire) 40a, 40b of deriving with the electric power efferent from circuit unit 40 are electrically connected, supply direct current from this pair of electrodes to light emitting module 10, thus make semiconductor light-emitting elements 12 luminous.

Seal 13 is, the seal member of sealing semiconductor light-emitting component 12, in the present embodiment, seals all semiconductor light-emitting elements 12 in the lump.Seal 13 is, slightly square on overlooking, orthogonal with lamp axle J.And seal 13 might not need orthogonal with lamp axle J, but, in order to obtain the all-round uniform luminous intensity distribution centered by lamp axle J, preferably, lamp axle J at the central crossbar of seal 13, it is further preferred that orthogonal.

Seal 13, is formed primarily of translucent material, but, when needing the wavelength conversion of the light sent from semiconductor light-emitting elements 12 to be the wavelength specified, the wavelength shifter being used for the wavelength converting light is mixed in described translucent material.For translucent material, such as, the resin of silicones etc. can be utilized.Further, for wavelength shifter, such as, fluorophor particle can be utilized.Accordingly, seal 13 can be configured to containing fluorophor resin.

In the present embodiment, for semiconductor light-emitting elements 12, utilize the blue-light-emitting LED of injection blue light, for seal 13, utilize the translucent resin material that fluorophor particle blue light wavelength being transformed to sodium yellow is mixed into this fluorophor particle.Accordingly, the part of blue light penetrated from semiconductor light-emitting elements 12 is sodium yellow by seal 13 wavelength conversion, and the white light generated by the sodium yellow after this wavelength conversion and the mixing not have blue light of conversion is from light emitting module 10 radiation.

And, for light emitting module 10, such as, also can be combination luminescence-utraviolet semiconductor light-emitting elements and with the module of the luminous each color fluorescence body particle of three primary colors (red, green, blue).And then, for wavelength shifter, light that comprise semiconductor, metal misfit thing, organic dyestuff, pigment etc., that absorb certain wavelength can be utilized and send the material of the material of the light of the wavelength different from the light absorbed.

[base station]

Base station 20 is, for loading the light source build-up member of light emitting module 10, such as, is the slightly discoideus substrate with the plane orthogonal with lamp axle J.In the face of a side of base station 20, be formed with the recess for light emitting module 10 being configured to plane.Be configured in the light emitting module 10 of recess, such as, be fixed on base station 20 by latch, screw, bonding etc.

Base station 20, be installed in the first opening portion of the opening of the side side (enclosed globe shade side) as the framework 60 of tubular, the sidewall portion of base station 20 abuts with the top inner surface of this first opening portion of framework 60.That is, base station 20, is fixed to be embedded in the state of the first side, opening portion of framework 60.

At base station 20, the mode making the interarea of enclosed globe shade side be communicated with the interarea of framework side is provided with a pair through hole 20a, a pair electric wiring 40a, 40b of circuit unit 40, export to the light emitting module side of base station 20 by these through holes 20a.Separately, be connected with the installation base plate 11 of light emitting module 10, light emitting module 10 is electrically connected with circuit unit 40 accordingly for a pair electric wiring 40a, 40b.

Further, the base station 20 of the present embodiment, such as, is made up of metal material.For metal material, such as, can consider Al, Ag, Au, Ni, Rh, Pd or, the alloy etc. of the alloy that is made up of the two or more among them or Cu and Ag.These metal materials, heat conductivity is good, therefore, it is possible to the heat occurred by light emitting module 10 is transmitted to framework 60 expeditiously.Such as, base station 20 also can be, the shaping slightly discoideus metal substrate by aluminium die casting.So, base station 20 is made up of metal material, thus also can make base station 20, as by the heat transfer occurred from light emitting module 10 to the radiator of framework 60 to play function.

[enclosed globe shade]

Enclosed globe shade 30 is, for making the light radiation of releasing from light emitting module 10 to the hemispheric diffuser of lamp outside, in the present embodiment, becomes the shape that open side (lamp holder side) is narrow.Further, light emitting module 10, is covered by this enclosed globe shade 30.Accordingly, incide the light of the light emitting module 10 of the inner surface of enclosed globe shade 30, after transmission enclosed globe shade 30, be extracted to the outside of enclosed globe shade 30.

Further, enclosed globe shade 30 has, and protuberance is more positioned at the protrusion 31 of the position of the outside of illumination light source 1 to the surface than framework 60.In the present embodiment, be configured to as shown in Figure 2, if virtual the virtual outer surface F as framework 60 (being dummy line L in Fig. 2) when extending making the main outer surface of framework 60 (being taper surface in the present embodiment) to enclosed globe shade side, protrusion 31, be then positioned at the position than virtual outer surface F more lateral (outside).That is, protrusion 31 is formed, and the top of this protrusion 31 exceeds virtual outer surface F.Further, the diameter of protrusion 31 (diameter by protrusion 31 plane orthogonal with lamp axle J) is larger than the diameter (opening diameter of the first opening portion of framework 60) of the enclosed globe shade side of framework 60.In the present embodiment, the diameter of protrusion 31 is the maximum outside diameter of enclosed globe shade 30, and the maximum outside diameter W1 of this enclosed globe shade is larger than the external diameter W2 of the enclosed globe shade side of framework 60.

So, enclosed globe shade 30 has protrusion 31, and therefore, the light that light emitting module 10 sends, except front and side, is also induced to rear (lamp holder side), is extracted to the outside of enclosed globe shade 30.That is, by protrusion 31, can easily make the light of releasing from enclosed globe shade 30 around to lamp holder side.Accordingly, even if utilize the LED at narrow light radiation angle, the light distribution angle of lamp also can be easily made to expand.

And, preferably, by protrusion 31, region (bottom) near the opening portion being formed in enclosed globe shade 30.And, in the present embodiment, the position being formed with protrusion 31 of enclosed globe shade 30, is not formed only this part and gives prominence to from a part for the outer surface of enclosed globe shade 30, and the outer surface being configured to enclosed globe shade 30 entirety comprising protrusion 31 becomes the level and smooth curved surface do not risen and not fallen.

Further, enclosed globe shade 30 is configured to, and this open side end is clamped by base station 20 and framework 60.In the present embodiment, enclosed globe shade 30, this open side end is pressed in the first opening portion of framework 60, thus under the state covering light emitting module 10 and optics 80, is installed in the first opening portion of framework 60.

Further, preferably, enclosed globe shade 30, is implemented for the DIFFUSION TREATMENT of the light diffusion making to release from light emitting module 10.Such as, at inner surface or outer surface formation optical diffusion film (light diffusion layer) of enclosed globe shade 30, thus enclosed globe shade 30 can be made to have light diffusion function.Specifically, the resin of the photodiffusion material containing silica and calcium carbonate etc. and Chinese white etc. are coated on the inner surface of enclosed globe shade 30 or the comprehensive of outer surface, thus can optical diffusion film be formed.Or, form light diffusion point at enclosed globe shade 30, thus enclosed globe shade 30 also can be made to have light diffusion function.Such as, the surface of resinous enclosed globe shade 30 is processed, form multiple point, or, form small pit (little recess), thus enclosed globe shade 30 can be made to have light diffusion function.Further, wrinkle processing is implemented to enclosed globe shade 30, thus also can have light diffusion function.

So, make enclosed globe shade 30 have light diffusion function, thus the light diffusion inciding enclosed globe shade 30 from light emitting module 10 can be made, therefore, it is possible to expand the light distribution angle of illumination light source.Particularly, make the protrusion 31 of enclosed globe shade 30 have light diffusion function, thus can more increase from protrusion 31 release light around the amount to lamp holder side.Accordingly, the light distribution angle of illumination light source more can be made to expand.

And in the present embodiment, the shape of enclosed globe shade 30 is hemispherical, but is not limited only to this.For the shape of enclosed globe shade 30, also can be ellipsoid of revolution or spheroid.Such as, also can utilize according to the enclosed globe shade as the shape of the light modulation of the bulb of the A type of common bulb shape.Further, for the material of enclosed globe shade 30, the resin material of glass material or polycarbonate etc. can be utilized.

[circuit unit]

Circuit unit 40 is, in order to the lamp circuit (power circuit) making semiconductor light-emitting elements 12 lighting (luminescence) supply electric power to light emitting module 10, there is circuit substrate 41 and be installed in the electronic unit 42,43 of this circuit substrate 41.And, in fig. 2, only to the electronic unit appending symbols of a part.Circuit unit 40, be housed in circuit retainer 50, such as, be screwed, bond or engaging etc. is fixed on circuit retainer 50.

Circuit substrate 41, the posture parallel with lamp axle J with its interarea and being configured.Accordingly, in circuit retainer 50, more circuit unit 40 can be deposited compactly.Further, in circuit unit 40, heat labile electronic unit 42 is configured to be positioned at the position far away with light emitting module 10, and on the other hand, heat-resisting electronic unit 43 is configured to be positioned at the position near with light emitting module 10.Accordingly, the heat that can prevent heat labile electronic unit 42 from occurring because of light emitting module 10 and being, usually, thermically destroyed.

Circuit unit 40 and lamp holder 70, be electrically connected by electric wiring (lead-in wire) 40c, 40d.Electric wiring 40c, by being arranged on the through hole 50a of circuit retainer 50, is connected with the shell portion 71 of lamp holder 70.Further, electric wiring 40d, by the opening of the lamp holder side of circuit retainer 50, is connected with the contact chip portion 73 of lamp holder 70.

[circuit retainer]

Circuit retainer 50 is, for receiving the insulation crust of circuit unit 40, is housed in framework 60 and lamp holder 70.Circuit retainer 50 is, such as, the housing of the summary cylindrical shape of both-side opening, by omiting first retainer portion (large-diameter portion) 51 of the tubular of same shape with framework 60 and forming with second retainer portion (minor diameter part) 52 of the tubular of lamp holder 70 summary same shape.The first retainer portion 51 being positioned at enclosed globe shade side is housed in framework 60, contains the major part of circuit unit 40 in the first retainer portion 51.On the other hand, the second retainer portion 52 being positioned at lamp holder side is housed in lamp holder 70, at the outer lamp holder 70 of the second retainer portion 52.Accordingly, the opening of the lamp holder side of circuit retainer 50 is blocked.Circuit retainer 50, preferably, such as, is formed by the Ins. ulative material of resin etc.

Base station 20 is positioned at the enclosed globe shade side of circuit retainer 50, but the end of the enclosed globe shade side of circuit retainer 50 does not contact with base station 20, is provided with gap, and the outer surface of circuit retainer 50 does not contact with the inner peripheral surface of framework 60, is provided with gap.So, gap is set between circuit retainer 50 and base station 20 (or framework 60), thus the heat that light emitting module 10 occurs can be suppressed, propagate into circuit retainer 50 by base station 20 and framework 60.Accordingly, the temperature of circuit retainer 50 can be suppressed to rise, therefore, it is possible to prevent circuit unit 40 to be, usually, thermically destroyed.

[framework]

Framework 60, is configured between enclosed globe shade 30 and lamp holder 70.Framework 60 is, the housing of both ends open, is made up of the summary frustum of a cone parts of the summary drum from enclosed globe shade side direction lamp holder side undergauge.

In the opening (the first opening) of the enclosed globe shade side of framework 60, contain the open side end of base station 20 and enclosed globe shade 30, such as, framework 60 is fixed on base station 20 by riveted joint.And, also can to by framework 60, base station 20 and enclosed globe shade 30 around space 60a inject adhesive etc., thus make framework 60 and base station 20 deadlocked.

The neighboring of the burner-side end of base station 20 is, the cone-shaped consistent with the shape of the inner peripheral surface of framework 60.The taper surface of this base station 20 carries out face with the inner peripheral surface of framework 60 and contacts, and therefore, propagates into the heat of base station 20 from light emitting module 10, is easily transmitted to framework 60 further.Accordingly, the heat that semiconductor light-emitting elements 12 occurs, mainly through base station 20 and framework 60, the second retainer portion 52 further by circuit retainer 50 is transmitted to lamp holder 70, dispels the heat from lamp holder 70 to ligthing paraphernalia (not illustrating) side.

In the present embodiment, framework 60, is made up of metal material.Accordingly, framework 60 plays function as radiator, can make the heat occurred from light emitting module 10 and circuit unit 40, be rejected heat to the outside of illumination light source 1 by framework 60 expeditiously.For the metal material of framework 60, such as, can consider Al, Ag, Au, Ni, Rh, Pd or, the alloy etc. of the alloy that is made up of the two or more among them or Cu and Ag.These metal materials, heat conductivity is good, therefore, it is possible to the heat propagating into framework 60 is transmitted to lamp holder side expeditiously.Therefore, also can make the heat occurred from light emitting module 10 and circuit unit 40, be dispelled the heat to ligthing paraphernalia side by lamp holder 70.In the present embodiment, framework 60, is made up of aluminum alloy materials.Further, in order to improve the thermal emissivity rate of framework 60, alumite process can be implemented to the surface of framework 60.And the material of framework 60, is not limited only to metal, it also can be resin.Such as, framework 60 can be formed by the resin etc. that thermal conductivity is high.

[lamp holder]

Lamp holder 70 is, is accepted the power receiving section of alternating current by two contacts, such as, is mounted to the socket of ligthing paraphernalia.In the case, when illumination light source 1 lighting, lamp holder 70, accepts electric power from the socket of ligthing paraphernalia.Further, the electric power accepted by lamp holder 70, is input to the power input of circuit unit 40 by electric wiring 40c, 40d.

Lamp holder 70 possesses, and slightly cylindric and outer peripheral face is the shell portion 71 of male thread and is arranged on the contact chip portion 73 in shell portion 71 by insulation division 72.And, between shell portion 71 and framework 60, be provided with the dead ring 74 of the insulation for guaranteeing framework 60 and lamp holder 70.

For the kind of lamp holder 70, have no particular limits, but, such as, the lamp holder of the Edison screw type (E type) of screw-in type can be utilized, E26 lamp holder and E17 lamp holder or E16 lamp holder etc. can be enumerated.

[optics]

Optics 80 is, for changing the parts of the direct of travel of the light that light emitting module 10 sends, is configured in the peripheral device of illumination light source 1.Optics 80, being configured in the position of face closer to enclosed globe shade side than arranging light emitting module 10, such as, can being configured between light emitting module 10 and enclosed globe shade 30.In the present embodiment, optics 80, is fixed on light emitting module 10.

Further, in the present embodiment, optics 80 is configured to, and the injection light from light emitting module 10 is spread, thus in the scope of angle of emergence 30 ° ~ 60 °, becomes maximum emission intensity to reach the inner surface of enclosed globe shade 30 from the injection light of light emitting module 10.And angle of emergence is defined as, along the enclosed globe shade side of lamp axle J to being 0 °, the lamp holder side along lamp axle J is 180 °.

Optics 80 is, such as omit column, be configured on lamp axle J, the axis of a cylinder of optics 80 is consistent with lamp axle J.And the axis of a cylinder of optics 80 might not need consistent with lamp axle J, but in order to obtain the all-round uniform luminous intensity distribution centered by lamp axle J, preferably, described axis of a cylinder is parallel with lamp axle J, it is further preferred that described axis of a cylinder is consistent with lamp axle J.

Optics 80, such as, by tubular and its axle outside portion 81 parallel with lamp axle J and the inside portion 82 that is packed in the column in the cylinder of outside portion 81 form.More specifically, the global shape of optics 80 is cylindric, and outside portion 81 is the cylindrical shapes with the cylinder axle consistent with lamp axle J, and inside portion 82 is that to be packed in the cylinder of outside portion 81 cylindric very close to each otherly.

In optics 80, outside portion 81 and inside portion 82, be made up of translucent material respectively.Further, outside portion 81 and inside portion 82 are configured to, and the refractive index of the refractive index ratio outside portion 81 of this inside portion 82 is low.Accordingly, optics 80, the anaclasis that light emitting module 10 is sent also is reflected thus can be changed the direct of travel of the light that light emitting module 10 sends.And, for the translucent material forming outside portion 81 and inside portion 82, the resin material of silicon and polycarbonate etc., glass or pottery etc. can be enumerated respectively.Such as, can consider to form outside portion 81 by the glass of refractive index 1.50, form inside portion 82 by the silicones of refractive index 1.41.

And, also in the inside of either one or both of outside portion 81 and inside portion 82, can comprise for making incident light at the light-scattering body of scattering-in.For light-scattering body, such as, the plastochondria of water white transparency or the colored transparent be made up of silica, aluminium oxide, zinc oxide and titanium dioxide etc. can be considered.Such as, and for the shape of plastochondria, can consider slightly ball shape, in the case, preferably, diameter is in the scope of 0.1 μm ~ 40 μm.Further, preferably, the addition of light-scattering body, in the scope of 10wt% ~ 60wt%.

Further, in the present embodiment, the front aspect (face of enclosed globe shade side) of optics 80 and rear aspect (face of light emitting module side), be plane and parallel respectively.And the front aspect of optics 80 and rear aspect, be not limited only to plane.Such as, also can be configured to, by the front aspect of optics 80, as the convex surface of the concave surface of the rounding conical surface etc. or taper seat etc., thus the diffusion of the light penetrated from optics 80 can be adjusted.

Mirror process can be implemented to the outer peripheral face of the outside portion 81 of optics 80.So, also can be configured to, the light that light emitting module 10 is sent reflects at the outer surface of optics 80, thus changes the direct of travel of the light that light emitting module 10 sends.Accordingly, can prevent light from reentering from the outer peripheral face of outside portion 81 and be mapped in optics 80, and, the light reflection inciding outside portion 81 can be made.Can consider for implementing the method for mirror process, the reflectance coating of such as metallic film and multilayer dielectric film etc., being formed by such as hot vapour deposition method, e-beam evaporation, sputtering method, gold-plated etc. method.

Further, the inner peripheral surface of outside portion 81 and the outer peripheral face of inside portion 82 are in comprehensive engagement, very close to each other between outside portion 81 and inside portion 82.That is, the inner peripheral surface of outside portion 81 and the outer peripheral face of inside portion 82 are the same faces, and are the interfaces of outside portion 81 and inside portion 82.And, can gap be there is between outside portion 81 and inside portion 82, but, if there is gap, produce the loss of light, therefore, preferably, very close to each other.

Further, as mentioned above, optics 80, on overlooking, is configured in the position that the entirety of optics 80 is overlapping with seal 13.Accordingly, the entirety of optics 80 contacts with seal 13, therefore, it is possible to make the injection light from light emitting module 10 incide expeditiously in optics 80.

At this, for the configuration relation of light emitting module 10 and optics 80, Fig. 3 is utilized to be described.Fig. 3 is the plane of the light emitting module of illumination light source and the configuration relation of optics related to for illustration of embodiment 1 of the present utility model.

As Fig. 3 illustrates, optics 80 is configured to, from enclosed globe shade side, less than the seal 13 of light emitting module 10.That is be configured to, the area of the light emitting module side of optics 80, less than the area of the light-emitting zone of light emitting module 10.Accordingly, seal 13 can not be covered by optics 80, and a part for seal 13 can be made to expose from optics 80.

Preferably, the area in the region of being covered by optics 80 of seal 13 is, 40% ~ 78% of the area of the surface integral of seal 13.That is, preferably, the area of the light emitting module of optics 80 is, 40% ~ 78% of the area of the light-emitting zone of light emitting module 10.

In the present embodiment, external diameter (external diameter of the outside portion 81) R1 overlooking circular optics 80 is 15mm, the length W3 overlooking one side of foursquare seal 13 is 21mm, therefore, the area in the region of being covered by optics 80 of seal 13 is, about 40% of the area of the surface integral of seal 13.

And, if using the external diameter R1 of the optics 80 and length W3 on one side of seal 13 as identical size, as long as optics 80 is set to run off from seal 13, the axis of a cylinder of optics 80 just can be made consistent with lamp axle J, therefore, it is possible to easily carry out the location of optics 80.And the height T of the optics 80 shown in Fig. 2 is the external diameter R2 of the inside portion 82 shown in 15mm, Fig. 3 is 10mm, and, the external diameter R1 of outside portion 81 (optics 80) and the external diameter R2 of inside portion 82, evenly overall in short transverse respectively.

[light characteristic of illumination light source]

Then, in the illumination light source 1 related in embodiment 1 of the present utility model, until be extracted to the situation of the outside of illumination light source 1 from the light of light emitting module 10 injection, Fig. 4 and Fig. 5 is utilized to be described.Further, Fig. 4 be in the illumination light source that relates to of embodiment 1 of the present utility model propagate optics from the light of light emitting module injection time the key diagram of situation.Fig. 5 be in the illumination light source that relates to of embodiment 1 of the present utility model be extracted to illumination light source outside from the light of light emitting module injection time the key diagram of situation.

As Fig. 4 illustrates, the part being configured to the seal 13 of light emitting module 10 is exposed from optics 80, therefore, from the light that the seal 13 of light emitting module 10 penetrates, incide optics after 80s by optics 80 towards enclosed globe shade 30, or, do not incide optics 80 also not by optics 80 towards enclosed globe shade 30.Wherein, incide the light of optics 80, further, incide the outside portion 81 of optics 80, or, incide inside portion 82.

As Fig. 4 illustrates, the light in outside portion 81 is incided from the rear aspect (face of light emitting module side) of outside portion 81, as shown in the light path L1 of Fig. 4, interreflection between the outer peripheral face and inner peripheral surface of outside portion 81, injects to optics 80 from the front aspect (face of enclosed globe shade side) of outside portion 81.So, incide the outer peripheral face reflection of light in outside portion 81 of outside portion 81, this is because, the cause that the refractive index ratio air of the material of outside portion 81 is high, and, the light inciding outside portion 81 reflects at inner peripheral surface, this is because, the cause that the material of the refractive index ratio inside portion 82 of the material of outside portion 81 is high.As mentioned above, incide the light in the outside portion 81 of optics 80, be difficult to escape to outside outside portion 81 because of the refringence of outside portion 81 and the medium adjacent with this outside portion 81, therefore, by injecting to optics 80 from the front aspect of outside portion 81 in outside portion 81.

On the other hand, the light in inside portion 82 is incided from the rear aspect (face of light emitting module side) of inside portion 82, interreflection between the relative outer peripheral face (inner peripheral surface of outside portion 81) of inside portion 82, the light of a part, as shown in the light path L2 of Fig. 4, inject to optics 80 from the front aspect (face of enclosed globe shade side) of inside portion 82, but, remaining light, as light path L2', L2 " shown in, incide in outside portion 81 after the outer peripheral face (inner peripheral surface of outside portion 81) of transmission inside portion 82.The light inciding inside portion 82 does not reflect and this outer peripheral face of transmission at the outer peripheral face of inside portion 82, this is because, the cause that the refractive index of the refractive index ratio outside portion 81 of inside portion 82 is low.Incide the light of outside portion 81 from inside portion 82, interreflection between the outer peripheral face and inner peripheral surface of outside portion 81, as shown in light path L1, inject to optics 80 from the front aspect of outside portion 81.

So, incide the light of optics 80, concentrate on the outside portion 81 formed by the material that refractive index is higher, mainly penetrate from outside portion 81.

And the light penetrated from outside portion 81 is not mainly inject to front along lamp axle J, but after being spread by optics 80, mainly so that relative to lamp axle J, the angle of emergence of the scope of 30 ° ~ 60 ° penetrates.Further, angle of emergence does not become 0 ° and becomes such angle, this is because inciding the major part of the light in outside portion 81, is not advance along lamp axle J in outside portion 81 always, but advances circuitously in outside portion 81 and produces the cause of internal reflection.Particularly, concentrate on the light of outside portion 81 from inside portion 82, incide in outside portion 81 with not parallel with lamp axle J angle, therefore, advance circuitously in outside portion 81.The light of advancing circuitously, even if after penetrating from optics 80, neither always towards the direction along lamp axle J, but towards the direction of the diagonally forward tilted relative to lamp axle J.So, the injection light towards diagonally forward is many, therefore, from the light that optics 80 penetrates, with entirety, mainly so that relative to lamp axle J, the angle of emergence of the scope of 30 ° ~ 60 ° penetrates.

So, the light penetrated from light emitting module 10 is spread by optics 80, thus becoming maximum emission intensity to reach the inner surface of enclosed globe shade 30 relative to lamp axle J in the scope of angle of emergence 30 ° ~ 60 °, therefore, as Fig. 5 illustrates, more light also reaches the region of the close lamp holder side of enclosed globe shade 30.

On the other hand, the light not inciding optics 80 among the light that the seal 13 of light emitting module 10 penetrates, as shown in the light path L3 of Fig. 4 and Fig. 5, optical axis does not change and directly reaches enclosed globe shade 30 so that the direction slightly parallel with lamp axle J to become maximum emission intensity.

So, according to the illumination light source 1 that the present embodiment relates to, the light penetrated from light emitting module 10 passes through optics 80, and therefore, more light also reaches the region of the close lamp holder side of enclosed globe shade 30.Accordingly, the light distribution angle of illumination light source 1 can be expanded.And in the present embodiment, the inner surface of enclosed globe shade 30 is implemented DIFFUSION TREATMENT, therefore, reaches the light of enclosed globe shade 30, spread by enclosed globe shade 30 further.

Further, in the present embodiment, enclosed globe shade 30 has protrusion 31, and therefore, the light reaching protrusion 31 is induced to lamp holder side by this protrusion 31, is extracted to outside enclosed globe shade 30.Accordingly, the light distribution angle of illumination light source 1 can be expanded.

For this point, specifically, being configured to of the bulb-shaped LED in the past shown in Figure 14, for lambert's luminous intensity distribution (± 120 °) of the narrow LED of radiation angle, the bottom part expansion of enclosed globe shade 1030.That is, the enclosed globe shade 1030 of bulb-shaped LED is in the past configured to, and bottom part becomes maximum open footpath.To this, in the present embodiment, arrange protrusion 31 at enclosed globe shade 30, therefore, the maximum open footpath of enclosed globe shade 30 is not the bottom part of enclosed globe shade 30, but protrusion 31.Accordingly, even if lambert's luminous intensity distribution (± 120 °), the light reaching protrusion 31 is induced to lamp holder side by this protrusion 31, is extracted to outside enclosed globe shade 30, therefore, it is possible to realize the light distribution angle of the broadness of more than ± 170 °.

At this, light is reached to the situation of protrusion 31, the light penetrated from light emitting module 10 can be considered, directly reach the situation of protrusion 31 and indirectly reach the situation of protrusion 31.Light is reached indirectly to the situation of protrusion 31, the situation that the situation can considering to be reached by the light (optics passes through light) of optics 80, situation that the light (reverberation) reflected by optics 80, enclosed globe shade 30 or light emitting module 10 etc. reaches or the light (diffused light) spread by enclosed globe shade 30 etc. are reached.

And in order to obtain broader light distribution angle, preferably, the front aspect (face of enclosed globe shade side) of optics 80 is positioned at enclosed globe shade side end than framework 60 closer to the position of the front side on the direction along lamp axle J.And then preferably, the front aspect (face of enclosed globe shade side) of seal 13 is positioned at enclosed globe shade side end than framework 60 closer to the position of the front side on the direction along lamp axle J.

Above, according to the illumination light source 1 that the present embodiment relates to, even if when the light emitting module 10 that light angle of emergence is narrow is configured to plane, also can make to extract outside light from enclosed globe shade 30, by protrusion 31 around to lamp holder side, therefore, it is possible to expand the light distribution angle of illumination light source 1.

And then, in the present embodiment, light emitting module 10 angle of emergence can be expanded by optics 80, therefore, more can expand the light distribution angle of illumination light source 1.Further, the outside portion 81 of optics 80 is tubular and is present in the periphery entirety of optics 80, therefore, it is possible to expand the all-round angle of emergence centered by lamp axle J.Accordingly, further, the light distribution angle of illumination light source 1 can more be expanded.

[light distribution characteristic of illumination light source]

Then, for the light distribution characteristic of the illumination light source that embodiment 1 of the present utility model relates to, Fig. 6 and Fig. 7 is utilized to be described.Fig. 6 is the distribution curve flux figure of the illumination light source that embodiment 1 of the present utility model relates to.Fig. 7 be the distribution curve flux that the illumination light source that embodiment 1 of the present utility model relates to is shown join photodistributed figure.

The distribution curve flux of Fig. 6 illustrates, relative to the size of luminous intensity of all directions of 360 ° of above-below direction comprising illumination light source 1, using the direction of the front side along lamp axle J of illumination light source 1 as 0 °, using the direction of the rear side along lamp axle J as 180 ° (-180 °), turn clockwise and be rotated counterclockwise respectively with 10 ° for interval draws scale.The scale (0.1 ~ 1.0) enclosed in the diametric(al) of distribution curve flux figure represents luminous intensity, so that the relative size of the maximum of each distribution curve flux as 1.0 (100%) is represented luminous intensity.So, in figure 6, represent with the lamp axle J of illumination light source be-180 ° ~+180 ° of benchmark scope in luminous intensity.

In figure 6, the distribution curve flux of incandescent lamp bulb is shown with the curve shown in two point locking wire.And, curve shown in broken lines illustrates, the distribution curve flux (" comparative example ") of the illumination light source (illumination light source that comparative example relates to) when removing enclosed globe shade 30 (protrusion 31) and optics 80 from the illumination light source 1 that embodiment 1 relates to.Further, illustrate with the curve shown in solid line, the distribution curve flux (" the utility model ") of the illumination light source 1 that embodiment 1 of the present utility model relates to.

And, evaluate light distribution characteristic according to light distribution angle.Light distribution angle refers to, the size of the angular range of the luminous intensity injection over half of the maximum of the luminous intensity of illumination light source.Such as, when the distribution curve flux shown in Fig. 6, light distribution angle is, luminous intensity becomes the size of the angular range of more than 0.5 (50%).

Further, Fig. 7 illustrates the luminous intensity distribution distribution of the distribution curve flux shown in Fig. 6, the relation that to illustrate with the lamp axle of illumination light source be angle time benchmark (0 °) and luminous intensity.

As Fig. 6 and Fig. 7 illustrates, the light distribution angle of incandescent lamp bulb is about 310 °.That is, the characteristic shown in the distribution curve flux of incandescent lamp bulb is, the center luminous intensity of the central shaft of this incandescent lamp bulb more than 1/2 luminous intensity become scope with the central shaft of this incandescent lamp bulb pact-155 ° ~ about+155 that are benchmark °.

Further, the light distribution angle of illumination light source that comparative example relates to is about 120 °.That is, the characteristic shown in distribution curve flux of the illumination light source that comparative example relates to is, the center luminous intensity of the central shaft of this illumination light source more than 1/2 luminous intensity become scope with the central shaft of this illumination light source pact-60 ° ~ about+60 that are benchmark °.

To this, be configured in the illumination light source 1 that the present embodiment relates to, with the central shaft of this illumination light source be benchmark the scope of-170 ° ~ less than+170 ° in luminous intensity become more than 1/2 of the center luminous intensity of the central shaft of this illumination light source.Accordingly, as Fig. 6 illustrates, the light distribution angle of the illumination light source 1 that the present embodiment relates to is about 340 °.That is, the characteristic shown in distribution curve flux of the illumination light source that the utility model relates to is, the center luminous intensity of the central shaft of this illumination light source more than 1/2 luminous intensity become scope with the central shaft of this illumination light source pact-170 ° ~ about+170 that are benchmark °.

And, in the distribution curve flux figure shown in Fig. 6, if when being 1 by the maximum of the luminous intensity of the distribution curve flux of illumination light source 1 related to using the present embodiment by this illumination light source 1 distribution curve flux around the area of part as S1, and, if by when being 1 using the maximum of the luminous intensity of the distribution curve flux of incandescent lamp bulb by this incandescent lamp bulb distribution curve flux around the area of part as S2, then become S1 > 0.9 × S2.That is, the light distribution patterns of the illumination light source 1 that the present embodiment relates to the overlapping of the standardized light distribution patterns of incandescent lamp bulb is, more than 9 one-tenth.

So, learn in the illumination light source 1 that the present embodiment relates to, can realize having the light distribution characteristic of the broader light distribution angle of the illumination light source that relates to than incandescent lamp bulb and comparative example.That is, learning, by arranging enclosed globe shade 30 and the optics 80 with protrusion 31, thus the injection light from light emitting module 10 can be made to advance in wide scope, the good light distribution characteristic that the light distribution angle that can realize illumination light source 1 expands.

And then, as Fig. 7 illustrates, in the illumination light source 1 that the present embodiment relates to, illustrate that the luminous intensity distribution distribution of the angle of distribution curve flux and the relation of luminous intensity has recess, there is the angular range (low luminous intensity angular range) of luminous intensity lower than the luminous intensity of the absolute value angle larger than this angle of an angle.In the present embodiment, in the angular range of-60 ° ~+60 ° taking the central shaft of this illumination light source 1 as benchmark, along with the absolute value of angle diminishes, luminous intensity diminishes gradually.Further, in the angular range of-60 ° ~+60 °, luminous intensity when angle is 0 ° is minimum.

So, become the distribution curve flux that luminous intensity distribution distribution has recess, thus easily can expand the light distribution angle of illumination light source.That is, when the luminous flux from light source (light emitting module) is certain, if consider the situation according to how distributing this luminous flux can determine distribution curve flux, in luminous intensity distribution distribution, recess is set, thus according to joining photodistributed recess, the light of the light of this recess as other angle can be utilized.And, in the illumination light source 1 that the present embodiment relates to, by the light (light that can utilize) of this recess, be assigned to the region of the large angle of absolute value, thus expand light distribution angle.And, for the means utilized as the light of other angular regions by the light of certain angular regions, utilize optics 80 or protrusion 31 or other optics portion etc. to realize.

Further, such joins photodistributed recess, can exist multiple.In the case, preferably, such as, be configured in the angular range taking the central shaft of this illumination light source as-60 ° ~-45 ° of benchmark and two places of+45 ° ~+60 °, along with the absolute value of this angle diminishes, luminous intensity also diminishes.

Further, in the present embodiment, preferably, from the injection light of light emitting module 10, by optics 80, in the scope of angle of emergence 30 ° ~ 60 °, maximum emission intensity is become to reach the inner surface of enclosed globe shade 30.This is because if angle of emergence is less than 30 °, the insufficient expansion of light distribution angle, therefore can not obtain good light distribution characteristic, if angle of emergence is more than 60 °, insufficient towards the amount of the light of enclosed globe shade side along lamp axle J, therefore top becomes dim.

Further, in the present embodiment, the shape of optics 80 is slightly cylindric, but, be not limited only to this.Such as, also can utilize by omiting the outside portion of angle tubular and omiting the optics of the positive tetragonal column of summary that corner post shape inside portion is formed.Further, also can be the column beyond slightly cylindric and slightly positive tetragonal column, or, can also be the shape beyond column.But, using the shape of optics 80 as cylindric, thus easily can realize the all-round uniform luminous intensity distribution centered by lamp axle J.

Further, in the light emitting module 10 of the present embodiment, the shape of the front aspect of the seal 13 of the light-emitting area of enclosed globe shade side is become for slightly square, but, be not limited only to this.Such as, the shape of the front aspect of the seal 13 of light emitting module 10 also can be that the summary be centrally located on lamp axle J is circular.Accordingly, the all-round uniform luminous intensity distribution centered by lamp axle J can easily be obtained.

Further, the optics 80 of the present embodiment, time viewed from enclosed globe shade side, less than the seal 13 of light emitting module 10, but also can be, larger than the seal 13 of light emitting module 10.Accordingly, the injection light from light emitting module 10 can be made to be spread by optics 80.But the injection light from light emitting module 10 directly can not reach the inner surface of enclosed globe shade 30, therefore, reduce along lamp axle J towards the amount of the light of enclosed globe shade side.

Further, the optics 80 of the present embodiment, external diameter R1 is evenly overall at above-below direction, but also can be uneven.Such as, can be that the external diameter of the pars intermedia of above-below direction diminishes the shape of cydariform of (external diameter of pars intermedia is narrow), also can be that external diameter R1 becomes large summary circular cone shape towards lamp holder side, or, can also be that external diameter R1 becomes large summary circular cone shape towards enclosed globe shade side.

Further, the optics 80 of the present embodiment is, that be made up of outside portion 81 and inside portion 82, two-layer in diametric(al) structure, but also can be, the structure of more than three layers in diametric(al).Even in this case, if all layers are formed by translucent material, the layer in the refractive index of translucent material more outside is higher, then also can since the injection light of self-luminous module 10 in the scope of angle of emergence 30 ° ~ 60 °, become maximum emission intensity to reach the mode of the inner surface of enclosed globe shade 30, diffusion injection light.

Further, in the present embodiment, be provided with a light emitting module 10 and an optics 80, but multiple light emitting module 10 and multiple optics 80 also can be set.Such as, also can be on lamp axle J, configure one of five light emitting modules, by remaining four light emitting modules, be configured to plane in the point-symmetric mode become centered by lamp axle J, and, each light emitting module arranges an optics.In the case, for light emitting module and optics, such as, the module size of described light emitting module 10 and optics 80 diminished and parts can be utilized.

Further, in the present embodiment, a light emitting module 10 is provided with an optics 80, but also multiple optics can be set on a light emitting module 10.Such as, also can be configure one of five opticses on lamp axle J, by remaining four opticses, position overlapping with the seal 13 of light emitting module 10 when the point-symmetric mode become centered by lamp axle J is configured in viewed from enclosed globe shade side.In the case, for optics, such as, the parts size of described optics 80 diminished can be utilized.

Further, in the present embodiment, a light emitting module 10 is provided with an optics 80, but also can an optics 80 be set on multiple light emitting module.Such as, also can be, lamp axle J configures one of five light emitting modules, by remaining four light emitting modules, plane is configured in the point-symmetric mode become centered by lamp axle J, and, by an optics 80, under the state that its axis of a cylinder is consistent with lamp axle J, be arranged on the enclosed globe shade side of five light emitting modules.In the case, such as, optics 80 can be configured, to cover the seal of the light emitting module be configured on lamp axle J completely, and, cover the roughly half being configured the seal of four light emitting modules in its four directions.In the case, for light emitting module, such as, the module size of described light emitting module 10 diminished can be utilized.Further, also can be configured to when utilizing multiple light emitting module, the gap between the seal of adjacent light emitting module, the translucent material of potting resin etc., thus incide expeditiously in optics 80 from the injection light of each light emitting module.

Further, optics 80, is not limited only to described embodiment, by changing the material (refractive index etc.) forming optics 80, thus can adjust reflection and the transmission of light, accordingly, can carry out inching to light distribution angle.Further, by changing position and the size of optics 80, also inching can be carried out to light distribution angle.

(embodiment 2)

Then, for the illumination light source that embodiment 2 of the present utility model relates to, Fig. 8, Fig. 9 and Figure 10 is utilized to be described.Fig. 8 is the part incised notch oblique view of the illumination light source that embodiment 2 of the present utility model relates to.Fig. 9 is the sectional view of the illumination light source that embodiment of the present utility model relates to.Figure 10 be illustrate in Fig. 9 by two point locking wire around the amplification sectional view of part.

As Fig. 8 and Fig. 9 illustrates, the illumination light source 2 that the present embodiment relates to possesses, light emitting module 210, base station 220, enclosed globe shade 30, circuit unit 40 (not illustrating in Fig. 8), circuit retainer 250 (not illustrating in Fig. 8), framework 60, lamp holder 70, optics 280 and cover 290.And, for the parts identical with embodiment 1, utilize the symbol identical with embodiment 1.

In the present embodiment, for illumination light source 2, also form peripheral device by enclosed globe shade 30 and framework 60 and lamp holder 70, in this peripheral device, contain light emitting module 210 and optics 280.

And, the illumination light source 2 of the present embodiment, be configured to similarly to Example 1, with the lamp axle J of this illumination light source 2 for benchmark more than-170 ° less than+170 ° regulation angular range in luminous intensity become more than 1/2 of the center luminous intensity of the lamp axle J of this illumination light source 2.In the present embodiment, this structure is realized by the protrusion 31 of enclosed globe shade 30 and optics 280.And, unfavorable optics 280, and only also can realize this structure by protrusion 31.Or, do not utilize protrusion 31, and only can realize this structure by optics 280 yet.

Below, each component parts of illumination light source 2 is described in detail.

As Fig. 9 illustrates, the light emitting module 210 of the present embodiment possesses, installation base plate 211, the multiple semiconductor light-emitting elements 212 as light source being installed in installation base plate 211 and the seal 213 be arranged in the mode covering such semiconductor light-emitting elements 212 on installation base plate 211.

Installation base plate 211 is, has the slightly circular substrate in slightly circular hole portion 214 in central authorities, has from one of the inner periphery in hole portion 214 tongue piece portion 215 extended to the center in hole portion 214.Tongue piece portion 215 front in, be provided with the connector 216 be connected with the electric wiring 40a of circuit unit 40, connect electric wiring 40a and connector 216, thus light emitting module 210 and circuit unit 40 be electrically connected.And, do not illustrate the electric wiring 40b of circuit unit 40, but electric wiring 40b is connected with the connector of installation base plate 211 too.

Semiconductor light-emitting elements 212 is, LED chip, such as, installation base plate 211 front in ring-type, 32 LED chip are installed.Specifically, be one group with two semiconductor light-emitting elements 212 arranged along the diametric(al) of installation base plate 211,16 groups of circumferential directions along installation base plate 211 are circular to be configured at equal intervals.And, for ring-type, not only circular, also comprise polygonal ring-type of triangle, quadrangle, pentagon etc.Therefore, such as, also with oval and polygonal ring-type, semiconductor light-emitting elements 212 can be installed.

Semiconductor light-emitting elements 212, is sealed by the seal 213 omiting rectangular shape respectively by each group.Therefore, in the present embodiment, seal 213 always has 16.The length direction of each seal 213, consistent with the diametric(al) of installation base plate 211, when from front side is viewed from lamp axle J (on overlooking), be configured to radial centered by lamp axle J.

Base station 220 is, such as, has the slightly thin cylindrical shape of through hole 220a, is configured with the posture that its axle is consistent with lamp axle J.And, base station 220 front in, light emitting module 210, is carried towards the state in main injection direction respectively with each semiconductor light-emitting elements 212.Base station 220 is provided with through hole 220a, therefore, it is possible to realize the lightweight of illumination light source 2.Further, in through hole 220a, and by the enclosed globe shade 30 of through hole 220a, a part for circuit unit 40 is configured with, therefore, it is possible to realize the miniaturization of illumination light source 2.

Circuit retainer 250, similarly to Example 1, is housed in framework 60 and lamp holder 70.The circuit retainer 250 of the present embodiment is, the housing of the summary cylindrical shape of both-side opening, is made up of first retainer portion (large-diameter portion) 251 of the through hole 220a of through base station 220 and the second retainer portion (minor diameter part) 252 of being embedded with lamp holder 70 outward.Be assembled with the cover 290 of bottom tube-like at the enclosed globe shade side end of the first retainer portion 251, circuit unit 40, be housed in the inside of the first retainer portion 251 and cover 290.So, in the present embodiment, be made up of circuit retainer 250 and cover 290, for receiving the insulation crust of circuit unit 40.Such as, and circuit retainer 250 and cover 290, preferably, formed by the Ins. ulative material of resin etc.

In circuit retainer 250, the position that the tongue piece portion 215 with light emitting module 210 is corresponding is provided with through hole 257.The front end of tongue piece portion 215, is inserted in circuit retainer 250 by through hole 257, is arranged on the connector 216 of tongue piece portion 215, is positioned at circuit retainer 250.

Further, as Figure 10 illustrates, circuit retainer 250 does not contact with base station 220, between the outer surface of circuit retainer 250 (the first retainer portion 251) and the side face of the through hole 220a of base station 220, be provided with gap.Therefore, it is possible to suppress the heat propagation of light emitting module 210 generation to circuit retainer 250.Accordingly, the temperature of circuit retainer 250 can be suppressed to rise, therefore, it is possible to prevent circuit unit 40 to be, usually, thermically destroyed.

Turn back to Fig. 9, cover 290 is, the inaccessible and lamp holder side opening in enclosed globe shade side have bottom tube-like, by towards enclosed globe shade side gradually the second cap 292 of the cylindrical shape of the first cap 291 of undergauge and the uniform diameter of above-below direction form.First cap 291 is positioned at enclosed globe shade 30, and the second cap 292 is positioned at the through hole 283 of optics 280.Gap is provided with between the second cap 292 and optics 280.Therefore, it is possible to the heat suppressing light emitting module 210 to occur propagates into circuit retainer 250 by optics 280.Accordingly, the temperature of circuit retainer 250 can be suppressed to rise, therefore, it is possible to prevent circuit unit 40 to be, usually, thermically destroyed.

Optics 280 is, similarly to Example 1, for changing the parts of the direct of travel of the light that light emitting module 210 sends.Further, in the present embodiment, optics 280, is also configured between light emitting module 210 and enclosed globe shade 30, is configured in the enclosed globe shade side of light emitting module 210.

And, optics 280, be configured to similarly to Example 1, the injection light from light emitting module 210 is spread, thus in the scope of angle of emergence 30 ° ~ 60 °, become maximum emission intensity to reach the inner surface of enclosed globe shade 30 from the injection light of light emitting module 210.

The optics 280 of the present embodiment, different from the shape of the optics 80 of embodiment 1, be the summary circular cone shape (external diameter toward the front side becomes large summary circular cone shape) in central authorities with slightly cylindric through hole 283, the central shaft (being also the central shaft of outside portion 281 described later and inside portion 282) of optics 280 is consistent with lamp axle J.And the central shaft of optics 280 might not need consistent with lamp axle J, but in order to obtain the all-round uniform luminous intensity distribution centered by lamp axle J, preferably, described central shaft is parallel with lamp axle J, it is further preferred that described central shaft is consistent with lamp axle J.

Optics 280 possesses, and has the inside portion 282 of the summary circular cone shape (external diameter towards enclosed globe shade side becomes large summary circular cone shape) of slightly cylindric through hole and the outside portion 281 of plane (in rear) and the continuous periphery inclined plane in this is rear being set to the light emitting module side covering inside portion 282 is shown as Figure 10 in central authorities.Outside portion 281 and inside portion 282, translucent material same by the outside portion 81 and inside portion 82 with embodiment 1 is respectively formed.Accordingly, optics 280, the anaclasis that light emitting module 210 is sent also is reflected, thus can change the direct of travel of the light that light emitting module 210 sends.

The front aspect (above) of optics 280, is made up of the front aspect (above) of outside portion 281 and the front aspect (above) of inside portion 282.The rear aspect of optics 280, is made up of the rear aspect of outside portion 281.The outer peripheral face of optics 280, is made up of the periphery inclined plane of outside portion 281.And, very close to each other between outside portion 281 and inside portion 282.

Respectively, the plane orthogonal with lamp axle J, the periphery inclined plane of optics 280 is the inclined-planes tilted relative to lamp axle J for the front aspect of optics 280 and rear aspect.And the front aspect of optics 280 and rear aspect, be not limited only to plane, such as, also can by the front aspect of optics 280, as the convex surface of the concave surface of the rounding conical surface etc. and taper seat etc., adjust the diffusion of the light penetrated from optics 280.And preferably, the rear aspect of the optics 280 contacted with the front aspect of seal 213 is, plane.

[light characteristic of illumination light source]

Then, in the illumination light source 2 related in embodiment 2 of the present utility model, until be extracted to the situation of the outside of illumination light source 2 from the light of light emitting module 10 injection, Figure 10 is utilized to be described.

As Figure 10 illustrates, that penetrate from the seal 213 of light emitting module 210, incide in outside portion 281, further in inside portion 282 periphery inclined plane reflection from the rear aspect of outside portion 281 light, such as, light path L4 as this figure illustrates, in outside portion 281, repeatedly produce internal reflection, inject to optics 280 from the front aspect of outside portion 281.

Penetrate from the seal 213 of light emitting module 210, incide light in outside portion 281, that incide the rear aspect of inside portion 282 further from the rear aspect of outside portion 281, such as, light path L5 as this figure illustrates, the front aspect from inside portion 282 behind transmission inside portion 282 injects to optics 280.Further, such as, the light path L5' as this figure illustrates, incides outside portion 281 after the inscattering of inside portion 282.Incide the light of outside portion 281, repeatedly produce internal reflection in outside portion 281, inject to optics 280 from the front aspect of outside portion 281.

The light of that penetrate from the seal 213 of light emitting module 210, in outside portion 281 periphery inclined plane reflection, such as, the light path L6 as this figure illustrates, towards oblique rear.And, also can implement mirror process to the periphery inclined plane of outside portion 281.。So, also can be configured to, the light that light emitting module 210 is sent reflects at the outer surface of optics 280, thus changes the direct of travel of the light that light emitting module 210 sends.Accordingly, can prevent light from reentering from periphery inclined plane and be mapped in outside portion 281, and, the light reflection inciding outside portion 281 can be made.And, can consider about implementing the method for mirror process to periphery inclined plane, the reflectance coating of such as metallic film and multilayer dielectric film etc., being formed by such as hot vapour deposition method, e-beam evaporation, sputtering method, gold-plated etc. method.

So, the light penetrated from light emitting module 210 is spread by optics 280, thus in the scope of angle of emergence 30 ° ~ 60 °, becomes maximum emission intensity to reach the inner surface of enclosed globe shade 30.Further, the light that light emitting module 210 can be made to send reflects at the outer surface of optics 280.Accordingly, more light reaches the region of the close lamp holder side of the inner surface of enclosed globe shade 30, therefore, it is possible to expand the light distribution angle of illumination light source 2.And, in the present embodiment, implement DIFFUSION TREATMENT to by the inner surface of enclosed globe shade 30, therefore, reach the light of enclosed globe shade 30, spread by enclosed globe shade 30 further.

Further, in the present embodiment, similarly to Example 1, enclosed globe shade 30 has protrusion 31, and therefore, the light reaching protrusion 31 is induced to lamp holder side by this protrusion 31, is extracted to outside enclosed globe shade 30.Accordingly, the light distribution angle of illumination light source 2 can be expanded.

And in order to obtain broader light distribution angle, preferably, the front aspect of optics 280 and periphery inclined plane are positioned at enclosed globe shade side end than framework 60 closer to the position of the enclosed globe shade side on the direction along lamp axle J.And then preferably, the front aspect (face of enclosed globe shade side) of seal 13 is positioned at enclosed globe shade side end than framework 60 closer to the position of the enclosed globe shade side on the direction along lamp axle J.

Above, according to the illumination light source 2 that the present embodiment relates to, effect similarly to Example 1 can be obtained.

That is, even if when the light emitting module 210 that light angle of emergence is narrow is configured to plane, also can make to extract outside light from enclosed globe shade 30, by protrusion 31 around to lamp holder side, therefore, it is possible to expand the light distribution angle of illumination light source 2.

And then, in the present embodiment, also can be expanded the light angle of emergence of light emitting module 10 by optics 280, therefore, more can expand the light distribution angle of illumination light source 1.Further, the outside portion 281 of optics 280 is present in the periphery entirety of optics 280, therefore, it is possible to expand the all-round light angle of emergence centered by lamp axle J.Accordingly, further, the light distribution angle of illumination light source 1 can more be expanded.

And, in the present embodiment, distribution curve flux similarly to Example 1 also can be realized.That is, in the present embodiment, the luminous intensity that can obtain more than 1/2 of the center luminous intensity of the central shaft of illumination light source becomes with the distribution curve flux in the scope of the central shaft of this illumination light source pact-170 ° ~ about+170 that are benchmark °.And, if when being 1 by the maximum of the luminous intensity of the distribution curve flux of illumination light source 2 related to using the present embodiment by this illumination light source 1 distribution curve flux around the area of part as S1', and, if by when being 1 using the maximum of the luminous intensity of the distribution curve flux of incandescent lamp bulb by this incandescent lamp bulb distribution curve flux around the area of part as S2, then become S1'> 0.9 × S2.That is, in the illumination light source 2 that the present embodiment relates to, also with the overlap proportion of the standardized light distribution patterns of incandescent lamp bulb be, more than 9 one-tenth.

Further, in the illumination light source 2 that the present embodiment relates to, preferably, also similarly to Example 1, in the luminous intensity distribution distribution of distribution curve flux, there is recess.

(variation)

Above, for the illumination light source that the utility model relates to, be illustrated according to embodiment, but the utility model, is not limited only to such embodiment.Below, the variation of the illumination light source related to for the utility model is described.

(variation 1)

Such as, in the described embodiment, optics 80 (280) is touched seal 13 (213) and go up and be configured on light emitting module 10 (210), but be not limited only to this.Figure 11 is the figure of the optics of illumination light source and the configuration relation of light emitting module illustrating that variation 1 of the present utility model relates to.

As Figure 11 illustrates, in this variation, the mode do not contacted with the seal 13 of light emitting module 10 with optics 80, is configured in hollow by optics 80 in enclosed globe shade 30 (not illustrating).That is, with make optics 80 and light emitting module 10 from, between optics 80 and light emitting module 10, there is the mode in gap, optics 80 be configured in the top of light emitting module 10.

According to such structure, can make a part for the light penetrated from light emitting module 10, below optics 80, (face of light emitting module 10 side) reflection, therefore, also can make light advance to the lamp holder side of optics 80.Accordingly, the amount of the light of the protrusion 31 reaching enclosed globe shade 30 can be increased, therefore, it is possible to easily expand the light distribution angle of illumination light source.And, by the distance D of adjustment light emitting module 10 with optics 80, inching can be carried out to the light distribution angle of illumination light source.

Further, in this variation, preferably, optics 80 is on overlooking, larger than the light-emitting zone of light emitting module 10.That is, preferably, the area of the light emitting module side of optics 80 is larger than the area of the light-emitting zone (seal 13) of light emitting module 10.Such as, be configured to the length (width of the optics in figure) of the optics 80 of the plane vertical with lamp axle J, longer than the length (width of the seal 13 in figure) of the light-emitting zone (seal 13) of light emitting module 10.

Accordingly, the light that (in rear) can reflect below optics 80 can be made to increase, therefore, it is possible to more increase the amount reaching the light of the protrusion 31 of enclosed globe shade 30.Therefore, the light distribution angle of illumination light source can more easily be expanded.

(variation 2)

Further, in the described embodiment, preferably, in order to improve the light diffusing of enclosed globe shade, following DIFFUSION TREATMENT is implemented to enclosed globe shade.Figure 12 is the key diagram of the DIFFUSION TREATMENT that the enclosed globe shade to illumination light source that variation 2 of the present utility model relates to is implemented, and is the sectional view cut off in the plane comprising lamp axle J.

In this variation, at the inner surface 32 of the protrusion 31A of enclosed globe shade 30A, evenly form multiple hemispheric first pit 33 with radius M (such as, M=40 μm).Further, at the inner surface of each first pit 33, evenly multiple hemispheric second pit 34 with the radius N (such as, N=5 μm) less than the first pit 33 is formed.And the radius of the first pit 33 is preferably, in the scope of M=20 μm ~ 40 μm, the radius of the second pit 34 is preferably, in the scope of N=2 μm ~ 8 μm.

So, in each of the small pit (little recess) evenly formed, the pit (little recess) that even formation is less than it, the region of such formation concave-concave hole structure, thus the injection light of light emitting module 10 can be spread by enclosed globe shade 30A, more can by luminous intensity distribution expanded range to lamp holder side.Particularly, only near the opening portion of enclosed globe shade 30A, region (protrusion 31 etc.) form such concave-concave hole structure, and do not form such concave-concave hole structure in region in addition, thus more can effectively by luminous intensity distribution expanded range to lamp holder side.

And, in this variation, define dual pit structure at protrusion 31, but, in order to carry out inching etc. to light distribution angle, also described dual pit structure can be formed in the region beyond protrusion 31.

(variation 3)

Further, in the embodiment shown, make use of flat luminous light emitting module 10, but, be not limited only to this.Figure 13 is the part incised notch oblique view of the illumination light source that variation 3 of the present utility model relates to.

The light emitting module 10A of this variation is that the light emitting module of multifaceted light-emitting, has polyhedral configuration.As Figure 13 illustrates, such as, in the multiaspect configuration LED element in each face face of base station 20 side (except) of cubical base station, thus light emitting module 10A can be formed.And, in fig. 13, surface is installed the LED element of (Surface Mount Device:SMD) type, be arranged in rectangular in each face cubical by every nine.

The LED element of SMD type is, the light-emitting component of encapsulation type, such as, by have recess (cavity) resinous container, be arranged on the LED chip in recess and the seal member (containing fluorophor resin) be enclosed in recess is formed.

The light emitting module 10A of the D structure of formation like this, can release light with the light distribution angle of broadness, therefore, it is possible to easily the luminous flux inciding protrusion 31 is become large.Accordingly, even if unfavorable optics, the illumination light source of light distribution angle broadness can also be realized.

And in this variation, light emitting module 10A is, SMD constructs, but also can be, the light emitting module that the COB (Chip On Board) sealed by seal member after LED chip being directly installed on base station constructs.

(variation 4)

And, in the described embodiment, preferably, when the global shape of enclosed globe shade 30 is slightly spherical (such as, when the shape of the G form according to JIS C7710 defined), on overlooking, the area of the light-emitting zone of light emitting module 10, relative to the opening inner region of the enclosed globe shade above base station 20 area and below the value becoming regulation.

When enclosed globe shade 30 is according to G form slightly spherical, the injection light of the LED that directive property is high can not project to the inner surface of enclosed globe shade equably, and luminous intensity is obviously uneven.On the other hand, the LED according to G form is, for the ornamental high lamp of shop illumination etc., therefore, enclosed globe shade entirety is easy to attract user to gaze at, large to the bad influence of design when brightness irregularities is obvious.That is, the global shape for enclosed globe shade 30 is slightly spherical globular bulb, needs the uniformity of luminous intensity.

So preferably, the area being configured to the light-emitting zone of light emitting module 10 is, less than 8% of the area of the opening inner region of the enclosed globe shade above base station 20.Accordingly, the injection light of semiconductor light-emitting elements 12 and spot light can be made close to (that is, light-emitting zone occupation rate can be made to diminish), therefore, it is possible to make injection light evenly project to the inner surface of enclosed globe shade 30.Therefore, it is uneven that enclosed globe shade 30 is difficult to produce luminous intensity, and the design of lamp during lighting improves.

And light-emitting zone is, form the region of seal 13, the enclosed globe shade opening inner region above base station 20 is, at the section by the plane above base station 20 being cut off during illumination light source.

(variation 5)

Further, in the described embodiment, optics is, the outside portion be made up of the material that refractive index is different and the double-layer structural of inside portion, but, be not limited only to this.Also only optics can be formed by single material.Further, for optics, also can be reflecting plate, half-reflecting mirror or glass marble lamp etc.Even if such optics, also can by luminous intensity distribution expanded range to lamp holder side, therefore, it is possible to expand the light distribution angle of illumination light source.

Further, in the described embodiment, the shape of optics is, cylindric or cylinder circular cone shape, but, be not limited only to this.Further, for the shape of optics, also can be crustose parts.Such as, also optics can be configured to the outer shelly of the shape similar to enclosed globe shade 30.Accordingly, can be configured to the illumination light source with dual enclosed globe shade, the enclosed globe shade of ground floor becomes the parts covering light emitting module, and the enclosed globe shade of the second layer becomes the enclosed globe shade of covering ground floor to form the parts of peripheral device.And in the case, the material of optics also can be, the material identical with enclosed globe shade 30.On the other hand, the shape of crustose optics is also passable, is not the shape similar to enclosed globe shade 30, but in order to make the light from light emitting module implement the shape of partial alteration to the reflection of desired direction and diffusion.

(variation 6)

Further, in the described embodiment, by the semiconductor light-emitting elements of light emitting module, the face of a side of installation base plate is only formed in, but, be not limited only to this.Such as, also can be configured to, using installing the installation base station of semiconductor light-emitting elements as cuboid etc., semiconductor light-emitting elements is arranged at least two faces of installing base station.Such as, also using installation base station as cube, on this installation base station, with four sides, multiple semiconductor light-emitting elements can be installed respectively.

Accordingly, the light emitting module of stereoscopic configurations semiconductor light-emitting elements can be formed, can easily by the light of light emitting module, (face, side) injection near the protrusion 31 of enclosed globe shade 30.Therefore, it is possible to easily by luminous intensity distribution expanded range to lamp holder side, easily can expand the light distribution angle of illumination light source.

(variation 7)

Further, in the described embodiment, the inner surface of enclosed globe shade 30 and outer surface, not have the level and smooth curve form at angle to be formed, but, be not limited only to this.Such as, enclosed globe shade can be configured to polyhedron.Specifically, the shape of the inner surface of enclosed globe shade or outer surface can be configured to polyhedral surface configuration.

Accordingly, reach the light of enclosed globe shade, in inner surface or outer surface reflection, diffusion or the refraction etc. of enclosed globe shade, therefore, by changing the shape of enclosed globe shade, luminous intensity distribution expanded range can be adjusted to lamp holder side, inching can be carried out to the light distribution angle of illumination light source.

(variation 8)

Further, in the described embodiment, the illumination light source with framework being made up of peripheral device enclosed globe shade 30 and framework 60 and lamp holder 70 is set to, but, be not limited only to this.Such as, also can be the clear lamp shape illumination light source being made up of peripheral device the enclosed globe shade according to A type (JIS C7710) of the enclosed globe shade as general incandescent lamp bulb and lamp holder.In the case, LED module, is configured in this enclosed globe shade with hollow state.Such as, the post core (support pillar) extended to the inside of this enclosed globe shade is set, in this direct fixed L ED module in post core top, thus can with the state of swimming in enclosed globe shade as heater winding configuration LED module.

Further, for clear lamp shape illumination light source, except enclosed globe shade and lamp holder, resin enclosure still can be utilized to form peripheral device.In the case, can metal holding member be set in resin enclosure, this holding member configures metal post core.Accordingly, the heat of LED module can be distributed more expeditiously.

So, be set to clear lamp shape illumination light source, thus can reduce and be present in than the light-blocking member (framework etc.) of LED module closer to the position of lamp holder side, therefore, it is possible to more expand light distribution angle.

(other)

Further, the utility model, also can realize with the lighting device possessing described illumination light source.Such as, the lighting device that the utility model relates to possesses, described illumination light source and the lighting tool for assembling this illumination light source.Lighting tool is, for the utensil of the light-off and lighting of carrying out illumination light source, such as, possesses the appliance body being mounted to ceiling and the shell covering illumination light source.Wherein, appliance body has, and installs the lamp holder of illumination light source and the socket of powering to illumination light source.

Further, in described embodiment and variation, the structure of the LED of light emitting module also can be, any structure of COB type or SMD type etc.

In addition, when not departing from purport of the present utility model, various distortion those skilled in the art can expected are executed in the form of the present embodiment, or the form that the inscape in different embodiment combines rear formation is also contained in scope of the present utility model.

The utility model, instead incandescent lamp bulb in the past etc. lamp, especially bulb-shaped lamp and possess its lighting device etc., be used in general lighting widely.

symbol description

1,2 illumination light sources

10,10A, 210 light emitting modules

11,211 installation base plates

12,212 semiconductor light-emitting elements

13,213 seals

20,220 base stations

20a, 220a, 257,283 through holes

30,30A enclosed globe shade

31,31A protrusion

40 circuit units

40a, 40b, 40c, 40d electric wiring

41 circuit substrates

42,43 electronic units

50,250 circuit retainers

50a through hole

51,251 first retainer portion

52,252 second retainer portion

60 frameworks

60a space

70 lamp holders

71 shell portions

72 insulation divisions

73 contact chip portions

74 dead rings

80,280 opticses

81,281 outside portions

82,282 inside portions

214 holes portion

215 tongue piece portion

216 connectors

290 covers

291 first caps

292 second caps

Claims

1. an illumination light source, forms peripheral device by enclosed globe shade, framework and lamp holder, it is characterized in that,

Described illumination light source possesses, and is configured in the light emitting module in described peripheral device,

Described enclosed globe shade has protrusion, and this protrusion swells to the position than described framework more lateral,

With the central shaft of this illumination light source be benchmark the angular range of more than-170 ° less than+170 ° in luminous intensity be, more than 1/2 of the center luminous intensity of the central shaft of this illumination light source.

2. illumination light source as claimed in claim 1, is characterized in that,

Low luminous intensity angular range is there is in the described angular range of less than+170 ° more than-170 °,

In described low luminous intensity angular range, the luminous intensity of an angle, is less than the luminous intensity of the absolute value angle larger than this angle.

3. illumination light source as claimed in claim 2, is characterized in that,

Described low luminous intensity angular range is, take the central shaft of this illumination light source as-60 ° to+60 ° of benchmark.

4. an illumination light source, forms peripheral device by enclosed globe shade, framework and lamp holder, it is characterized in that,

In distribution curve flux figure, when by when being 1 using the maximum of the luminous intensity of the distribution curve flux of this illumination light source by this illumination light source distribution curve flux around the area of part as S1, and, when by when being 1 using the maximum of the luminous intensity of the distribution curve flux of incandescent lamp bulb by this incandescent lamp bulb distribution curve flux around the area of part as S2, become S1 > 0.9 × S2.

5. the illumination light source as described in any one of Claims 1-4, is characterized in that,

Described illumination light source possesses, and is configured in the optics in described peripheral device,

Described optics, changes the direct of travel of the light that described light emitting module sends.

6. illumination light source as claimed in claim 5, is characterized in that,

Described optics is configured to, and makes the anaclasis that described light emitting module sends, thus changes the direct of travel of the light that described light emitting module sends.

7. the illumination light source as described in claim 5 or 6, is characterized in that,

Described optics is configured to, the light reflection that described light emitting module is sent, thus changes the direct of travel of the light that described light emitting module sends.

8. the illumination light source as described in any one of claim 5 to 7, is characterized in that,

The outer surface of described optics is implemented mirror process.

9. the illumination light source as described in any one of claim 5 to 8, is characterized in that,

Described optics is configured between described light emitting module and described enclosed globe shade.

10. illumination light source as claimed in claim 9, is characterized in that,

Described optics is configured to, with described light emitting module from.

11. illumination light sources as claimed in claim 10, is characterized in that,

The area of the light emitting module side of described optics is larger than the area of the light-emitting zone of described light emitting module.

12. illumination light sources as claimed in claim 9, is characterized in that,

Described optics contacts with described light emitting module.

13. illumination light sources as claimed in claim 12, is characterized in that,

The area of the light emitting module side of described optics is less than the area of the light-emitting zone of described light emitting module.

14. illumination light sources as described in any one of claim 1 to 13, is characterized in that,

Described protrusion is implemented for the DIFFUSION TREATMENT that light is spread.

15. illumination light sources as described in any one of claim 1 to 14, is characterized in that,

Described illumination light source possesses the base station for loading described light emitting module,

The area of the light-emitting zone of described light emitting module is, less than 8% of the area of the enclosed globe shade opening inner region above described base station.

16. illumination light sources as described in any one of claim 1 to 15, is characterized in that,

Described enclosed globe shade is made up of glass or resin.

17. illumination light sources as described in any one of claim 1 to 16, is characterized in that,

Described enclosed globe shade is polyhedron.

18. illumination light sources as described in any one of claim 1 to 17, is characterized in that,

Described light emitting module has, installation base plate and be installed in the semiconductor light-emitting elements of described installation base plate,

Described semiconductor light-emitting elements is installed on described installation base plate.

19. illumination light sources as described in any one of claim 1 to 18, is characterized in that,

Described light emitting module has, and installs base station and is installed in the semiconductor light-emitting elements of described installation base station,

Described semiconductor light-emitting elements, is installed at least two faces of described installation base station.

20. illumination light sources as described in any one of claim 1 to 19, is characterized in that,

Described light emitting module and described optics are configured on lamp axle.

21. 1 kinds of lighting devices, is characterized in that,

Possesses the illumination light source described in any one of claim 1 to 20.