CN102679205A

CN102679205A - Lamp and light apparatus

Info

Publication number: CN102679205A
Application number: CN2012100573381A
Authority: CN
Inventors: 漆原嗣; 大塚宏树; 中野裕也; 伴康雄
Original assignee: Iwasaki Denki KK
Current assignee: Iwasaki Denki KK
Priority date: 2011-03-03
Filing date: 2012-03-02
Publication date: 2012-09-19
Also published as: TW201307750A; KR20120100777A

Abstract

The invention provides a lamp and a lighting apparatus. The lamp is used to prevent the light utilization rate from being reduced and simultaneously suppress the light quantity towards the circumferential direction. A LED lamp (1) is structured as follows: a concave mirror (18) and a LED (10) arranged on a bottom opening (18B) of the concave mirror (18) and capable of emitting the light outside are arranged on the top (2A) of a basal body (2) and a reflection surface (44) for controlling the light distribution of the concave mirror (18) has light transmittance.

Description

Lamp and ligthing paraphernalia

Technical field

The present invention relates to comprise in the light source lamp and the ligthing paraphernalia of light-emitting components such as LED, organic EL.

Background technology

In recent years, along with high-output powerization and the cost degradation of LED, comprised in the light source that the bulb type LED lamp of LED had obtained popularizing.In this LED lamp, have the lamp holder on the socket that can be installed in existing device, can replace bulb utilization (for example referring to patent documentation 1 and patent documentation 2).

In addition, based on halogen bulb is widely used in spotlight and uses light source, and also having proposed to substitute this based on halogen bulb is the scheme of the LED lamp of purpose.In this LED lamp, in order to obtain to distribute with the approximate light of based on halogen bulb and proposed following organization plan.

The organization plan of following formation promptly, has been proposed: in the rear end has the lamp socket (holder) of lamp holder, taken in LED; And be provided for cover that the opening that is formed at this lamp socket front end is covered; Be provided with from the side wall portion of lamp socket front end side extension forwards at this cover, can be from the irradiates light of LED through this side wall portion directive outside (for example referring to patent documentation 3).Utilize the LED lamp of this structure, the light of LED can emit to circumferencial direction through the side wall portion of cover, thereby it is approximate with based on halogen bulb that its light is distributed.

In addition; Also proposed to have the scheme of the LED lamp of following structure; Be that said LED lamp comprises: have the bottom and the cup-shaped radiator of side surface part, be arranged on the bottom in this radiator LED, be used to control the light control member of the emergent light of this LED; Light control member is with the side surface part of a part of emergent light guiding radiator of LED, and side surface part has light transmission (for example referring to patent documentation 4).Utilize the LED lamp of this structure; Owing to can form desirable local lighting through light control member, simultaneously a part of photoconduction through making LED to and see through side surface part, also can be from this side surface part radiation bright dipping; So the overall distribution of light of LED lamp and based on halogen bulb are approximate.

[prior art document]

[patent documentation]

[patent documentation 1]

The spy opens the 2009-4130 communique

[patent documentation 2]

No. the 2009/063655th, International Publication

[patent documentation 3]

No. 3164202 communique of utility model registration

[patent documentation 4]

No. 4745467 communique of patent

Summary of the invention

Invent problem to be solved

But; In the LED of patent documentation 3 lamp; When the side wall portion of cover at the width (width till the front side end from the lamp socket open end to lid) of short transverse hour, the light that then can not fully reproduce based on halogen bulb etc. distributes, and can not obtain even light distribution.If increase the width of side wall portion in short transverse in order to solve this situation; Then owing to the light that emits to circumferencial direction from LED; Can directly pass through side wall portion and the directive circumferencial direction, so it is too much to produce the light quantity of directive circumferencial direction, and the problem of the irradiation light quantity in directive the place ahead decline.

Therefore, when the light transmittance that for example makes side wall portion for the irradiation light quantity that suppresses the directive circumferencial direction descends, then produce the corresponding increase of light quantity meeting that slatterns because of being blocked, thereby reduce the problem of the utilization rate of light by side wall portion.

On the other hand, the LED lamp of patent documentation 4 owing to taken in the side surface part ability printing opacity of the radiator of LED, so compare with the LED lamp of patent documentation 3, can make light be radiated in the scope widely of circumferencial direction.But; Because the light to the side surface part irradiation is controlled by light control member; So; When not making the light of LED be radiated in the scope widely of side surface part through this light control member, its result is identical with the LED lamp of above-mentioned patent documentation 3, and light only is radiated in the scope that is restricted of side surface part.In addition; In the LED of patent documentation 4 lamp, in order to control the emergent light of LED, and the emergent light that it is a part of is distributed to side surface part and the irradiation of circumferencial direction is controlled; And need light control member; Light through utilizing the LED lamp to form distributes, and is extremely very difficult to light control member design, and said light control member can be realized the beam split of the light of this photodistributed control and directive side surface part is distributed simultaneously.

The present invention In view of the foregoing accomplishes, and its purpose is, the decline that can prevent light utilization efficiency is provided, and can suppress the lamp and the ligthing paraphernalia of the light quantity of directive circumferencial direction simultaneously.

To achieve these goals; The present invention provides a kind of lamp, it is characterized in that, in an end of matrix; Be provided with concave mirror and be configured in this concave mirror bottom and radiate the light-emitting component of bright dipping, and the photodistributed reflecting surface that is used in the said concave mirror of control has light transmission.

In addition, the invention is characterized in that in above-mentioned lamp, utilizing transparent substrate forming is said concave mirror, and dichroic coating is set to form said reflecting surface at the inner peripheral surface of this base material.

In addition, the invention is characterized in, in above-mentioned lamp,, be provided with the neck of the non-reflecting surface of the light incident that also can make said light-emitting component on every side of surrounding said light-emitting component in the bottom of said concave mirror.

In addition, the invention is characterized in that in above-mentioned lamp, the outer peripheral face of said base material has light diffusing.

In addition, the invention is characterized in, in above-mentioned lamp, comprising: the lens that the top end opening of said concave mirror is sealed.

In addition; The invention is characterized in; In above-mentioned lamp, comprise said light-emitting component and base member in an end of said matrix, said base member is made up of thermally conductive materials; And said base member is provided with said concave mirror, and said base member is provided with caloic (heat mass) portion.

In addition, the invention is characterized in, in above-mentioned lamp; Said base member comprises to the outstanding edge part of the circumferencial direction of said matrix; In this outstanding edge part integrated setting said caloic portion is arranged, said caloic portion with the direction of said circumferencial direction approximate vertical on extend, and the caloic cover that the exposed portions serve to said caloic portion covers is set; Said caloic cover has electrical insulating property, and has the lower thermal conductivity than said caloic portion.

In addition; To achieve these goals, the present invention provides a kind of ligthing paraphernalia, it is characterized in that; In the casing that has comprised the installation portion that is installed in utensil configuration position; Be provided with concave mirror and be configured in said concave mirror bottom and radiate the light-emitting component of bright dipping, said concave mirror is provided with and is used to control photodistributed reflecting surface and this reflecting surface has the light transmission that a part of incident light is seen through, and power circuit from the electric power of turning on light to said light-emitting component that supply with is set in said casing.

In addition; The invention is characterized in, in above-mentioned ligthing paraphernalia, comprise the base member that said light-emitting component is installed and forms by thermally conductive materials; One side at the back side of said base member is provided with the heat sink (heat sink) that carries out heat bonding with said casing.

In addition, the invention is characterized in that in above-mentioned ligthing paraphernalia, comprise the base member that said light-emitting component is installed and is made up of thermally conductive materials, said base member comprises caloic portion.

In addition, the invention is characterized in, in above-mentioned ligthing paraphernalia,, be provided with the neck of the non-reflecting surface of the light incident that also can make said light-emitting component on every side of surrounding said light-emitting component in the bottom of said concave mirror.

In addition, the invention is characterized in that in above-mentioned ligthing paraphernalia, said casing forms tubular, and utilize said base member that the open-ended of said casing sealed.

In addition, in this specification, comprise the full content of Japanese patent application JP2011-45903 that on March 3rd, 2011 proposed and the Japanese patent application JP2012-2416 that proposed on January 10th, 2012.

According to the present invention, owing to make the reflecting surface of concave mirror have light transmission, so the light of penetration face can be to the circumferencial direction radiation, and can realize distributing with the approximate light of based on halogen bulb.Therefore particularly, have light transmission, need not to use other parts and the light of light-emitting component can incide reflecting surface, and can make light radiation in the scope widely of circumferencial direction owing to be used in the photodistributed reflecting surface of control.In addition, because the light of the not penetration face in the radiant light of light-emitting component almost all is used for the irradiation that main direction of illumination is an optical axis direction, therefore can suppress the decline of illumination efficiency.

Description of drawings

Fig. 1 (A)～Fig. 1 (B) is the overall perspective view of the LED lamp of first embodiment of the present invention, and Fig. 1 (A) is a top perspective view, and Fig. 1 (B) is the below stereogram.

Fig. 2 (A)～Fig. 2 (C) is the figure of the surface structure of expression LED lamp, and Fig. 2 (A) is a vertical view;

Fig. 2 (B) is a side view; Fig. 2 (C) is a upward view.

Fig. 3 is the profile of the A-A line of Fig. 2.

Fig. 4 is the enlarged drawing of the concave mirror of presentation graphs 3.

Fig. 5 is the photodistributed figure of expression LED lamp and based on halogen bulb.

Fig. 6 (A)～Fig. 6 (B) is the figure of one of the optical characteristics of expression reflectance coating example, the spectral transmission of Fig. 6 (A) expression reflectance coating; The spectral reflectance of Fig. 6 (B) expression reflectance coating.

Fig. 7 is the figure of luminosity spectral characteristic of LED lamp, existing LED lamp and the based on halogen bulb of this embodiment of expression.

Fig. 8 (A)～Fig. 8 (D) is vertical view, upward view, front view and the side view of the LED ligthing paraphernalia of expression second embodiment of the present invention, and Fig. 8 (A) is a vertical view; Fig. 8 (B) is a upward view; Fig. 8 (C) is a front view; Fig. 8 (D) is a side view.

Fig. 9 is the profile of the internal structure of expression LED ligthing paraphernalia.

Figure 10 is the enlarged drawing of expression illuminating part.

Figure 11 is the profile of internal structure of LED ligthing paraphernalia of the variation of expression second embodiment.

The explanation of symbol

1LED lamp (lamp)

2 matrixes

2A, 102A top ends (end)

3,103 edge parts

4,104 illuminating parts

10LED (light-emitting component)

16,116 mounting seat parts (base member)

18 concave mirrors

The 18A top end opening

18B bottom opening (bottom)

20 Fresnel Lenses (lens)

30,130 plectane portions (pedestal part)

32,132 pedestal portions

34,134 caloic portions

42 necks

44 reflectings surface

46,146 caloic covers

60 base materials

62 outer peripheral faces

100,200LED ligthing paraphernalia (ligthing paraphernalia)

102 casings

106 supporting members (installation portion)

170 heat sinks

176 power circuits

The K central shaft

The specific embodiment

Following with reference to accompanying drawing, embodiment of the present invention is described.

In following embodiment, though enumerate the example of LED as the light-emitting component that constitutes light source, the present invention is not limited thereto, for example can be other light-emitting component such as organic EL.

[first embodiment]

Fig. 1 (A)～Fig. 1 (B) is the overall perspective view of the LED lamp 1 of this embodiment, and Fig. 1 (A) is a top perspective view, and Fig. 1 (B) is the below stereogram.In addition, Fig. 2 (A)～Fig. 2 (C) is the figure of the surface structure of expression LED lamp 1, and Fig. 2 (A) is a vertical view, and Fig. 2 (B) is a side view, and Fig. 2 (C) is a upward view.Fig. 3 is the profile of the internal structure of expression LED lamp 1.

LED lamp 1 is constituted,, can use LED lamp 1 to replace existing bulb with existing based on halogen bulb or roughly the same shape and the optical characteristics of incandescent lamp bulb.

Promptly, as shown in Figure 1, LED lamp 1 has matrix 2 roughly cylindraceous, is on the top ends 2A (Fig. 3) illuminating part 4 to be set in an end of this matrix 2, is that lamp holder 6 is set on the terminal part 2B in the other end.Matrix 2 is formed by the material that pottery, resin etc. have insulating properties.Lamp holder 6 comprises: the housing 6A that is carved with the tubular of the ridge that screws togather with socket (not shown); Be set at eyelet (eyelet) 6C at the top of this housing 6A end through insulation division 6B, the structure of this housing 6A and eyelet 6C is to have shape, the size that can be installed on the existing socket.Thus, this LED lamp 1 can be installed in the socket that has been arranged on ceiling or the wall, and can use this LED lamp 1 to replace existing based on halogen bulb or incandescent lamp bulb.

Illuminating part 4 comprises the LED10 as light source, and is as shown in Figure 3, with the circuit substrate 12 that is equipped with circuit such as opening the required drive circuit of LED10, power circuit, is accommodated in the inside of matrix 2.The power circuit of circuit substrate 12 is electrically connected with the housing 6A and the eyelet 6C of lamp holder 6 respectively, through lamp holder 6 is installed in the socket, can from socket, supply power to the power circuit of circuit substrate 12 by housing 6A and the eyelet 6C through lamp holder 6.

In addition, the structure of illuminating part 4 is elaborated, as shown in Figure 3, illuminating part 4 comprises above-mentioned LED10, mounting seat parts 16, concave mirror 18, Fresnel Lenses 20.

Used the LED box of the surperficial real dress type of radiation white light among the LED10.Though promptly omitted diagram, LED10 comprises: led chip; Be formed be used to take in led chip take in recess, roughly rectangular slim box when overlooking, utilize transparent resins such as silicone resin to come the sealing LED chip at the recess of taking in of box.In this transparent resin, be dispersed with fluorophor (fluorescent pigment, fluorescent dye etc.) as material for transformation of wave length; Thereby the light of the illuminant colour different with led chip is radiated in the optical excitation that said material for transformation of wave length is radiated by led chip, thereby through the light of led chip and the light of fluorophor are mixed the acquisition white light.

As shown in Figure 3, mounting seat parts 16 are, as being used to support concave mirror 18, placing radiating piece and caloic and the parts that play a role of pedestal, the LED10 of above-mentioned LED10 light-emitting area up.

Promptly, mounting seat parts 16 comprise: roughly rounded tabular plectane portion 30 when overlooking; Pedestal portion 32 to the outstanding butt shape of the substantial middle upper surface of this plectane portion 30; In the whole peripheral caloic portion 34 that is provided with of plectane portion 30, said mounting seat parts 16 are undertaken one-body molded by the metal materials such as for example aluminium with high-termal conductivity.

On first type surface one side of the face side of plectane portion 30, LED10 and concave mirror 18 are set, at the first type surface of dorsal part matrix 2 is set generally perpendicularly.The top ends 2A of 30 pairs of matrixes 2 of plectane portion seals; And have its edge part and along the circumferential direction project to the diameter outside the top ends 2A of matrix 2; On the whole periphery of this outstanding edge part, integrated setting have carry out along the outer peripheral face of matrix 2 about (perpendicular to the direction of circumferencial direction) the following caloic portion 34 of extending.

Pedestal portion 32 is the parts that are used to carry LED10, roughly rounded convex shaped part when also being overlooking of being wholely set at the substantial middle place of the first type surface of plectane portion 30 face side, and surface above that is provided for embedding the embedded hole 32A of above-mentioned LED10.Through LED10 being embedded among the embedded hole 32A, can be from the bottom surface of LED10 and two faces of side the heat release of LED10 is moved to pedestal portion 32, thereby improve radiating efficiency.In addition, be provided with the through hole 32B of up/down perforation in two positions of pedestal portion 32, the positive potential that extends from the circuit substrate of matrix 2 12 and each lead of negative potential are connected with LED10 through each through hole 32B.

Above-mentioned caloic portion 34 extends below on the central shaft K of matrix 2 at the edge part of plectane portion 30, and forming highly is the sidewall of W, and its conduct is used to absorb enough caloics (thermal capacity) of LED10 heat release and plays a role.In addition, the 34A in the bottom of caloic portion 34 is formed for taking in the insertion opening 39 of the top ends 2A of matrix 2.Between matrix 2 and mounting seat parts 16, do not leave a blank the unoccupied place be filled be used for bonding resina 38 and carry out bonding, the sealing.

Matrix 2 is preferably below the 3mm with the gap of the caloic portion 34 of mounting seat parts 16, can prevent that thus finger from touching caloic portion 34 from this gap.

In addition, insert opening 39, in this insertions opening 39, insert the top ends 2A of matrix 2 and fix, so can shorten the total length of LED lamp 1 because the bottom 34A of caloic portion 34 forms.

Because the caloic and the volume of caloic portion 34 increase pro rata, therefore, can improve the caloic performance here, through increasing height W or thickness T.At this moment; If thickness T increases in the more outstanding degree of the concave mirror of stating behind the ratio when overlooking along the circumferencial direction (direction vertical with central shaft K) of matrix 2 18; Then cause the maximization that becomes of the size of LED lamp 1, so thickness T is preferably, the thickness that is accommodated in caloic portion 34 when overlooking in the scope of top end opening 18A of concave mirror 18 is limit; Exceed under the situation of caloic of this limit the preferred height W that increases when needs.But; When increasing height W; Be preferably, for the shape of the concave mirror 18 stated after not limiting, upper end 34B is positioned at the height and position with neck 42 same degree of this concave mirror 18; And the height and position to arrive with the lower end 44A same degree of reflecting surface 44 is that limit is extended, and the insufficient section of caloic replenishes through bottom 34A is extended to downside.

In addition, the heat release of LED10 is comprised, and the mounting seat parts 16 of caloic portion 34 absorb, and dispel the heat to the outside from caloic portion 34, but also can the heat of a part be conducted to matrix 2, and are dispelled the heat to the outside by this whole matrixes 2.

In LED lamp 1; Because caloic portion 34 is more outstanding than matrix 2 in a circumferential direction; Therefore the position that touches easily of the person of being to use still, is formed by the metal material with high-termal conductivity owing to comprise the mounting seat parts 16 of this caloic portion 34; Therefore its electric conductivity is high, and also becomes high temperature through caloic.Therefore; In order to prevent electric shock or scald because of contacting and cause with this caloic portion 34; Caloic portion 34 is provided with the caloic cover 46 that is used to cover whole exposed portions serve of exposing in caloic portion 34 outsides, and said caloic cover 46 is formed by the bonding agent that has high-insulativity and have a thermal conductivity lower than caloic portion 34.

Thus, even in the caloic that has increased caloic portion 34 and improved under the situation of cooling performance of LED10, also can prevent electric shock or scald because of contacting and cause with this caloic portion 34.

Caloic cover 46 for example through embed moulding be set at mounting seat parts 16 around, thus, can caloic cover 46 be securely fixed in the caloic portion 34 simply and not can make the come off constant intensity of degree of caloic cover 46.

In this embodiment; The thickness of said caloic cover 46 (wall thickness of circumferencial direction) is; Can prevent that the thickness (for example 2mm) of scalding from being lower limit when contacting with the proof voltage of 1.2kV, be the upper limit can be installed in existing based on halogen bulb with the size (for example 4mm) of the circumferencial direction in socket support etc.

Fig. 4 is the enlarged drawing of the concave mirror 18 in the presentation graphs 3.

The structure of concave mirror 18 does; Reflecting surface 44 with ellipse of revolution face; This reflecting surface 44 reflects the light that LED10 radiates along optical axis direction, and controls the light distribution with the mode that forms local lighting, and this reflecting surface 44 has light transmission all; Concave mirror 18 along the circumferential direction radiates bright dipping from this whole reflectings surface 44 with respect to optical axis, and this optical axis is configured to the central shaft K of matrix 2 roughly coaxial.

Particularly, concave mirror 18 has bottom opening 18B in bottom centre, and the roughly whole face of the medial surface of the scope D till from this bottom opening 18B to top end opening 18A all forms reflecting surface 44.In addition, at bottom opening 18B, integrated setting the neck cylindraceous 42 of distolateral extension backward.Neck 42 is set at ditch portion 50, and said ditch portion 50 is formed by the pedestal portion 32 of mounting

seat parts

16 and 34 in the caloic portion in the outside, and carries out bonding through the transparent bonding agent 52 that is filled in the gap between neck 42 and the caloic portion 34.As stated owing to concave mirror 18 is inserted and secured on ditch portion 50, so can shorten the total length of LED lamp 1.At this moment, the width of ditch portion 50 is preferably, and the gap between concave mirror 18 and the caloic portion 34 is the size below the 3mm, can prevent that thus finger from touching caloic portion 34 from this gap.

In addition; The length L of neck 42 is greater than the pedestal portion 32 of mounting seat parts 16 height apart from plectane portion 30, thus; Neck 42 surrounded the LED10 that is arranged on pedestal portion 32 upper surfaces around, dispose reflecting surface 44 in the position of the light-emitting area 10A that is higher than this LED10.More accurate, the light-emitting area of LED10 is positioned at the position that is surrounded by neck 42 on every side, and the light-emitting area of LED10 is set to, and is positioned at from the luminous energy of light-emitting area radiation and incides on the height and position of neck 42 and reflecting surface 44.

Concave mirror 18 comprises base material 60; Said base material 60 has electrical insulating property; And the thermal resistance between the mounting seat parts 16 higher (thermal conductivity is lower than mounting seat parts 16); And said base material 60 is that material transparent is that transparent resin or clear glass etc. carry out moulding by the light with respect to LED10, with respect on whole of these base material 60 medial surfaces of above-mentioned scope D, forms reflecting surface 44 through the reflectance coating with light transmission.Through utilizing this base material 60 to constitute concave mirror 18, it is charged and become high temperature to prevent to be exposed to outside concave mirror 18.

As shown in Figure 4; Reflected by this reflecting surface 44 by reentering the light M1 that is mapped to reflecting surface 44 after the LED10 radiation; Thereby radiate reverberation M2 through top end opening 18A to outside (central shaft K direction), some light M1 penetration face 44 and radiate transmitted light M3 to circumferencial direction.

Thus, because transmitted light M3 is from roughly whole directive circumferencial direction of reflecting surface 44, so can realization and based on halogen bulb or the approximate light distribution of incandescent lamp bulb.

In addition; Owing to make reflecting surface 44 have light transmission; Therefore not the luminous energy of penetration face 44 as reverberation M2 and as main irradiates light along central shaft K direction, thereby can have no to utilize lavishly the not light of penetration face 44, and the utilization rate of light is improved.

Neck 42 at concave mirror 18 does not form above-mentioned reflecting surface 44, and is set as unstained transparent material.Therefore, incide the light M4 of neck 42, illuminated the gap between neck 42 and the caloic portion 34, thus, strengthened the luminous intensity of lower end (bottom opening 18B) the part directive circumferencial direction of reflecting surface 44 thereby see through neck 42 from LED10.And the light M4 that incides the part of neck 42 just becomes the propagates light M5 of base material 60 inside that propagate into concave mirror 18, thereby makes base material 60 whole luminous, and helps to increase the light quantity to the circumferencial direction radiation.

Be provided with above-mentioned Fresnel Lenses 20 at the top end opening 18A of concave mirror 18.Fresnel Lenses 20 is in the table of resinous discoideus material arbitrary, is provided with the different ditch of all angles with the mode of concentric circles.In this embodiment, towards inboard (LED10 side), another first type surface 20B mode toward the outer side, Fresnel Lenses 20 is arranged on the top end opening 18A of concave mirror 18 with the first type surface 20A that is provided with ditch.

Particularly; Top end opening 18A at concave mirror 18; Be formed for embedding the end difference 19 of Fresnel Lenses 20; Through embedding Fresnel Lenses 20 at this end difference 19, and carry out bondingly with resina, the state that can seal with the top end opening 18A of 20 pairs of concave mirrors 18 of Fresnel Lenses fixes Fresnel Lenses 20.

Through above-mentioned Fresnel Lenses 20 is set to; 18A seals to top end opening; In inciding the light M6 of Fresnel Lenses 20, a part that incides the light M6 of the face 20A that is formed with ditch is reflected to reflecting surface 44, thereby the light M7 penetration face 44 that is reflected emits to circumferencial direction; Can increase light quantity, and improve the utilization rate of light to the circumferencial direction radiation.

Thus, as shown in Figure 5, even LED lamp 1 also can be realized distributing with the approximate light of the light distribution of based on halogen bulb.

Here, in this embodiment, use the dichroic coating formed by the dielectric multilayer film reflectance coating, and make reflecting surface 44 have the wavelength selectivity of transmitted light as the reflecting surface that forms concave mirror 18 44.

Fig. 6 (A)～Fig. 6 (B) is the figure of one of the optical characteristics of expression reflectance coating example, the spectral transmission of Fig. 6 (A) expression reflectance coating, the spectral reflectance of Fig. 6 (B) expression reflectance coating.

It is that the light of 400nm～800nm reflects the optical characteristics of (not transmission substantially) that the reflectance coating of reflecting surface 44 has emission wavelength to LED10, has the optical characteristics that makes a part of light transmission among wavelength 400nm～800nm simultaneously.Utilize a part of light that sees through this reflectance coating; Can radiate the light of the indirect light when being suitable for throwing light on to circumferencial direction; In addition; Since will radiate as main irradiates light and from top end opening 18A from the reverberation of reflecting surface 44, thus as shown in Figure 7, can keep the color rendering that equates with existing LED lamp.

Reflectance coating through forming reflecting surface 44 is made as, and by the dichroic coating that the dielectric multilayer film is formed, can make reflecting surface have the wavelength selectivity of transmitted light; And can make the free transmission of wavelength according to requirements such as illumination Design; But, because there is wavelength dependency in the dielectric multilayer film on the direct of travel of transmitted light, so; When the radiant light of circumferencial direction for example shines wall etc., then produce color inequality or uneven illumination.

Therefore; Outer peripheral face 62 to concave mirror 18; Enforcement is used to make its processing of for example impression (emboss) with light; Said light is to make 62 pairs of transmitted lights of outer peripheral face of concave mirror 18 carry out scattering, can suppress color inequality or uneven illumination to the light of circumferencial direction radiation thus.

As stated; Processed following LED lamp 1 according to this embodiment; Promptly concave mirror 18 and LED10 are set at the top ends 2A of matrix 2; The bottom opening 18B that said LED10 is disposed at this concave mirror 18 goes up the also light-emitting component of conduct radiation bright dipping, and makes the whole face of the reflecting surface 44 of concave mirror 18 all have light transmission.

Thus, because transmitted light is from the circumferencial direction of roughly whole directive LED lamp 1 of reflecting surface 44, so can realization and based on halogen bulb or the approximate light distribution of incandescent lamp bulb.Particularly; Owing to make reflecting surface 44 have light transmission, thus not the light of penetration face 44 as reverberation, thereby be used to the irradiation that main direction of illumination is an optical axis direction; Even, can not produce waste yet and can make the utilization rate of light become good so suppress transmission light quantity.

In addition; According to this embodiment; Owing to utilize transparent base material 60 to be shaped to concave mirror 18, dichroic coating is set and has formed reflecting surface 44 at the inner peripheral surface of this base material 60, therefore according to the requirement of illumination Design etc.; Can be simply and freely selective transmission to the light wavelength of circumferencial direction, and the distortion that can produce the different LED lamp 1 of the color of irradiates light of circumferencial direction simply.

In addition; According to this embodiment; Because waiting through impression processing, the outer peripheral face 62 of the base material 60 of concave mirror 18 has light diffusing; Even therefore utilize the dichroic coating of forming by the dielectric multilayer film to form reflecting surface 44, also can suppress color inequality or uneven illumination to the light of circumferencial direction radiation.

In addition; According to this embodiment; Comprise the structure that is used for the Fresnel Lenses 20 that the top end opening 18A to concave mirror 18 seals owing to formed, therefore can be effectively with the light of the backside reflection of Fresnel Lenses 20 irradiates light as the directive circumferencial direction.

In addition; According to this embodiment; Processed following LED lamp 1; This LED lamp 1 is on the first type surface of surface one side of plectane portion 30 LED10 and concave mirror 18 to be set at tabular base member, and a side is provided with the matrix 2 of tubular at the back side of plectane portion 30, and makes the edge part of plectane portion 30 outstanding to the circumferencial direction (direction vertical with central shaft) of matrix 2; Along the caloic portion 34 that the outer peripheral face of matrix 2 extends, and be provided for covering the caloic cover 46 of the exposed portions serve of this caloic portion 34 in the whole periphery setting of this outstanding edge part.

Through this structure, can make the heat release of LED10 conduct to caloic portion 34, and handle effectively through plectane portion 30, and, can guarantee the security when contacting with caloic portion 34.

Particularly, through making caloic cover 46 have electrical insulating property and the thermal conductivity lower, electric shock in the time of can preventing to contact and scald than caloic portion 34.

In addition, certainly in the scope that does not break away from aim of the present invention, this first embodiment is out of shape arbitrarily and uses.

[second embodiment]

For the illustrated LED lamp 1 of first embodiment, in being provided with the matrix 2 as the lamp main body of lamp holder 6, accommodate the circuit substrate 12 of the circuit such as power circuit that carried LED10.Therefore, receive the spatial constraints of matrix 2, and be difficult to increase the power capacity of power circuit, and be unfavorable for the high-output powerization of the light quantity of LED lamp 1.

Therefore, in this embodiment, the ligthing paraphernalia of the power capacity that is easy to increase power circuit is described.In addition, in each accompanying drawing by the reference of this embodiment, to the parts identical parts illustrated with first embodiment, the symbol that mark is identical, and omitted explanation.

Fig. 8 (A)～Fig. 8 (D) is the figure of surface, bottom surface, front and side of the LED ligthing paraphernalia 100 of this embodiment of expression, and Fig. 8 (A) is a vertical view; Fig. 8 (B) is a upward view; Fig. 8 (C) is a front view; Fig. 8 (D) is a side view.In addition, Fig. 9 is the profile of the internal structure of expression LED ligthing paraphernalia 100.

Identical with the LED lamp 1 of first embodiment, the structure of this LED ligthing paraphernalia 100 does, its light distributes roughly the same with the existing based on halogen bulb that is used for spot light, and it can be used in local lighting and replaces based on halogen bulb.

Promptly, as shown in Figure 8; The structure of LED ligthing paraphernalia 100 does; Having casing 102 roughly cylindraceous, is top ends 102A (Fig. 9) in an end of this casing 102, is provided with along the illuminating part 104 of the direction radiation bright dipping of the central shaft K of this casing 102; In the other end is terminal part 102B, and the supporting member 106 as the installation portion that is installed in utensil configuration position is set.

Supporting member 106 is set to; Mode to be free to slide is installed along the guide rails (not shown) such as illumination guide rail (lighting rail) or distribution trough guide rail that are called as at the utensil configuration position that is arranged on

LED ligthing paraphernalia

100, and 106 pairs of above-mentioned casings 102 of said supporting member support.Promptly, supporting member 106 comprises: the socket 108 with the fastener 108A that engages with guide rail; And the support rod 110 of this socket 108 hollow of extending certainly, the top ends 110A of support rod 110 is connected on the terminal part 102B of casing 102 with the mode of freely rotating.The electrode 108B (Fig. 8 (B)) of fastener 108A through being arranged on socket 108, by guide rail to LED ligthing paraphernalia 100 supply capabilities, and through having connected distribution (not shown) in the support rod 110 casing 102 that leads.

Casing 102 is formed by the for example metal material with high-termal conductivity; At terminal part 102B; Be provided with the clamping part 112 of the top ends 110A of clamping support rod freely to rotate 110; Through casing 102 is rotated with respect to support rod 110, thereby make the direction of illumination of illuminating part 104 can be towards desirable direction.

This casing 102 forms and the existing identical size shape of lamp socket that based on halogen bulb is installed.Existing lamp socket has formed from top ends and has inserted the cylindric of based on halogen bulb, and its inside keeps the socket that the lamp holder with this based on halogen bulb is screwed, and this existing lamp socket is installed on the above-mentioned guide rail in order to the supporting based on halogen bulb with the mode that moves freely.When in this existing lamp socket, the based on halogen bulb that has speculum being installed, the structure of this lamp socket does, the underside contain of the speculum of based on halogen bulb and is exposed to beyond the top ends upside of this speculum in lamp socket.In the LED of this embodiment ligthing paraphernalia 100; On the top ends 102A of the profile casing 102 identical with the size shape of existing lamp socket; So that the concave mirror 18 outstanding states that illuminating part 104 is had are provided with concave mirror 18; Therefore can obtain not only light distribution but also outward appearance, also with in existing lamp socket the similar ligthing paraphernalia of ligthing paraphernalia that based on halogen bulb forms has been installed.

Identical with the illuminating part 4 of first embodiment, illuminating part 104 comprises LED10.Shown in figure 11, in casing 102, taken in circuit substrate 115, said circuit substrate 115 has carried circuit such as being used to open the required drive circuit of LED10, power circuit 176.Be introduced in the distribution of casing 102 through the support rod 110 of supporting member 106, be connected with power circuit 176, through this distribution to power circuit 176 supply capabilities.Power circuit 176 has produced the electric power that is used to open LED10 based on this electric power, and under the control of drive circuit, is supplied to this LED10.

Figure 10 is the enlarged drawing of expression illuminating part 104.

The illuminating part 104 of this embodiment has: the light identical with the existing based on halogen bulb that is used for spot light distributes; Like Fig. 9 and shown in Figure 11; Identical with the illuminating part 4 of first embodiment, illuminating part 104 comprises concave mirror 18, the Fresnel Lenses 20 of LED10, mounting seat parts 116, cup-shaped.Shown in figure 10, in LED10, upper surface constitutes light-emitting area 10A, and uses from the LED box of the surperficial real dress type of this light-emitting area 10A radiation bright dipping.

Identical with first embodiment, the mounting seat parts 116 of this embodiment comprise: roughly rounded tabular plectane portion 130 when overlooking; Pedestal portion 132 to the outstanding butt shape of the substantial middle upper surface of this plectane portion 130; The caloic portion 134 that is provided with along plectane portion 130 whole peripheries, and utilize metal materials such as for example aluminum to carry out one-body molded with high-termal conductivity.In addition, on mounting seat parts 116, be provided for covering the caloic cover 146 of whole exposed portions serve that caloic portion 134 outsides go out cruelly.

Plectane portion 130 has formed the size that can make caloic portion 134 be positioned at the edge part 103 of casing 102 top ends 102A, thereby the caloic cover 146 of this caloic portion 134 of covering is close to edge part 103, and mounting seat parts 116 are installed on this casing 102.The opening of the top ends 102A of casing 102 is sealed by mounting seat parts 116, prevents entering such as dust thus.

In addition, shown in figure 10, caloic cover 146 has also covered the bottom 134A of caloic portion 134, this caloic cover 146 between the top ends 102A and caloic portion 134 of casing 102, thereby can realize electric insulation between the two.

Here, the thickness T of caloic portion 134 is preferably, and the thickness that is accommodated in caloic portion 134 when overlooking in the scope of top end opening 18A of concave mirror 18 is limit, when needs exceed the caloic of this limit, and the preferred height W that increases.But; When increasing height W; Be preferably, for the shape of the concave mirror 18 stated after not limiting, the upper end 134B of caloic portion 134 is positioned at the height and position with neck 42 same degree of this concave mirror 18; And the height and position to arrive with the lower end 44A same degree of reflecting surface 44 is that limit is extended, and the insufficient section of caloic replenishes through bottom 134A is extended to downside.

Though the heat release meeting of LED10 is transmitted to the mounting seat parts 116 that comprise caloic portion 134; And be accumulated in the caloic portion 134; Dispel the heat to the outside then, but can this LED ligthing paraphernalia 100 be constituted, make it from mounting seat parts 116, conduct heat to casing 102 1 sides energetically.

If promptly the internal structure to casing 102 describes, then as above-mentioned shown in Figure 9, integrated setting has dividing plate 115A among casing 102, and said dividing plate 115A is divided into top ends 102A one side and terminal part 102B one side with casing 102 inside.Terminal part 102B one side being separated by dividing plate 115A is provided with above-mentioned clamping part 112, and top ends 102A one side has formed the substrate accommodation container 172 that is used to take in circuit substrate 115.Dividing plate 115A has formed the bottom surface of substrate accommodation container 172, on this dividing plate 115A, has taken in circuit substrate 115 with the state of upright setting, and is filled with filler 171.Filler 171 has higher electrical insulating property and thermal conductivity, and the heat release meeting of circuit substrate 115 is conducted to casing 102 through filler 171, and dispels the heat from the surface of casing 102.

On the other hand, heat sink 170 is close to the back side of the plectane portion 130 that is arranged on above-mentioned mounting seat parts 116, this heat sink 170 is inserted into the filler 171 from the top ends 102A of casing 102, and carries out heat bonding through filler 171 and casing 102.Heat sink 170 contacts to carry out face under the pedestal portion 132 of the mode of surrounding this pedestal portion 132 and plectane portion 130.Thus, the heat release of LED10 can be transmitted to the heat sink 170 of casing 102 sides effectively from pedestal portion 132, conducts heat to casing 102 through filler 171, and dispels the heat from the surface of casing 102.

As stated; Owing in LED ligthing paraphernalia 100, comprise the caloic portion 134 that is used to accumulate the LED10 heat release of mounting seat parts 116; In addition; Also comprise conducting heat to the heat sink 170 that dispels the heat again in casing 102 1 rear flank, therefore can distribute by LED10 liberated heat effectively, thereby obtain higher cooling performance.Thus, the high-output powerization of LED10 becomes easily, and can be easy to realize the LED ligthing paraphernalia 100 of high-output power.

In addition; Because keep the lamp socket of the socket that the based on halogen bulb lamp holder has been installed has on the casing 102 of same size shape in profile and existing inside; Concave mirror 18 is set; Keep the power circuit 176 of LED10 in simultaneously in this casing 102, therefore with in having simulated the LED lamp of based on halogen bulb in keep power circuit 176 situation compare, can enlarge the space that is used to take in power circuit 176.Thus, can form the face shaping that the LED lamp that will simulate based on halogen bulb is installed in the state in the existing lamp socket, keep jumbo power circuit 176 in the while, thereby can constitute the LED ligthing paraphernalia 100 of high-output power.

The structure and the optical characteristics of the concave mirror 18 of this embodiment are roughly the same, with the optical axis of reflecting surface 44 mode roughly coaxial with the central shaft K of casing 102, concave mirror 18 are arranged on the top ends 102A of this casing 102.

And, with said structure, can LED ligthing paraphernalia 100 be constituted, have and the LED lamp of first embodiment 1 identical light distribute (Fig. 5) and identical color rendering (Fig. 6).

As stated; According to this embodiment, owing to be to comprise that the installation portion that is installed in utensil configuration position (being guide rail) in this embodiment is in the casing 102 of socket 108, structure from the power circuit 176 of the electric power of turning on light to LED10 that supply with is set; Therefore compare with LED lamp in the past; Can increase the space that is used to take in power circuit 176, and be easy to increase the power capacity of power circuit 176, also be easy to realize high-output powerization.

In addition; According to this embodiment; Because the back side one side at the mounting seat parts 116 that constitute by thermally conductive materials that LED10 is installed; Be provided with the heat sink 170 that carries out heat bonding with casing 102, therefore can the heat that LED10 emits be conducted to casing 102 from mounting seat parts 116, and can improve heat dispersion.

Particularly; According to this embodiment; Because mounting seat parts 116 comprise caloic portion 134,, thereby also can utilize two parts of mounting seat parts 116 and heat sink 170 to handle the heat release of this LED10 fully even therefore under the situation of the LED10 that has used high performance type.

In addition, according to this embodiment, but formed bottom at concave mirror 18, be provided with surround LED10 around and the structure of the neck 42 of the non-reflecting surface of the light incident of LED10.Utilize this structure; Because through inciding the light M4 of neck 42; Thereby make the coupling part of concave mirror 18 and casing 102 luminous, and generated propagates light M5, thereby make base material 60 whole luminous at base material 60 internal communications of concave mirror 18; Therefore helping increases the light quantity to the circumferencial direction radiation, and approaches the light distribution of existing based on halogen bulb.

In addition, according to this embodiment,, therefore need not the parts that this opening is sealed are set in addition, and be easy to installation owing to formed the structure that the opening with the top ends 102A of 116 pairs of casings 102 of mounting seat parts seals.

And; Utilization be arranged on the electrical insulating property of mounting seat parts 116 upper surfaces concave mirror 18, with the caloic portion 134 that is provided with along outer peripheral edges; Formed and prevented to point the upper surface of these mounting seat parts 116 of entering and be exposed to the structure that caloic portion 134 outside faces cover with 146 pairs on caloic cover; Even therefore mounting seat parts 116 are set at outside the casing 102, can prevent that also finger from directly touching mounting seat parts 116.

In addition; According to this embodiment; Owing to utilize transparent base material 60 to be shaped to concave mirror 18, and the dichroic coating of being made up of the dielectric multilayer film in the inner peripheral surface setting of this base material 60 forms reflecting surface 44, so according to the requirement of illumination Design etc.; Can be simply and freely selective transmission to the light wavelength of circumferencial direction, and the distortion that can produce the different LED ligthing paraphernalia 100 of the color of irradiates light of circumferencial direction simply.

In addition, can be in the scope that does not break away from aim of the present invention, this second embodiment is out of shape arbitrarily and uses.

For example in second embodiment, enumerated will be arranged on mounting seat parts 116 back sides through filler 171 heat sink 170 indirectly heat bonding on casing 102.But, be not limited thereto, can form with heat sink 170 directly and casing 102 carry out the structure of heat bonding.For example, can form the structure of LED ligthing paraphernalia shown in figure 11 200 that kind, promptly be bonded in the sidewall 270A that is used for directly conduction heat of casing 102 outer peripheral faces, be wholely set with heat sink 170 with face.Thus, owing to can reduce from heat sink 170 to casing 102 thermal resistance, therefore can further improve the heat dispersion of LED10.

In addition, in the structure of Figure 11, owing to casing 102 is electrically connected with mounting seat parts 116 through heat sink 170, so this casing 102 is to be formed by the higher material of electrical insulating property.

In addition, so long as the structure of heat bonding is carried out at the back side of heat sink 170 and mounting seat parts 116, then heat sink 170 can be opened with the mounting seat parts in 116 minutes, also can become one.Through integrated setting has heat sink 170 at the back side of mounting seat parts 116, can eliminate the thermal resistance between mounting seat parts 116 and the heat sink 170, thus the heat of emitting to casing 102 1 sides conduction LED10 effectively.

In addition; For example in second embodiment; Having enumerated the LED ligthing paraphernalia 100,200 that is installed on the guide rail, but be not limited thereto, also can be following structure; Be that casing 102 comprises that can be fixed on wall or ceiling etc. directly or indirectly is provided with the installation portion on the face, is fixed on the face of setting through this installation portion.

Claims

1. a lamp is characterized in that, in an end of matrix, be provided with concave mirror and be configured in this concave mirror bottom and radiate the light-emitting component of bright dipping, and the photodistributed reflecting surface that is used in the said concave mirror of control has light transmission.

2. lamp according to claim 1 is characterized in that, utilizing transparent substrate forming is said concave mirror, and dichroic coating is set to form said reflecting surface at the inner peripheral surface of this base material.

3. lamp according to claim 2 is characterized in that the outer peripheral face of said base material has light diffusing.

4. lamp according to claim 1 and 2 is characterized in that, comprising: the lens that the top end opening of said concave mirror is sealed.

5. lamp according to claim 1 and 2; It is characterized in that; End at said matrix comprises said light-emitting component and base member, and said base member is arranged on the said concave mirror and by thermally conductive materials to be formed, and said base member is provided with caloic portion.

6. lamp according to claim 5; It is characterized in that said base member comprises to the outstanding edge part of the circumferencial direction of said matrix, said caloic portion is arranged in this outstanding edge part integrated setting; Said caloic portion with the direction of said circumferencial direction approximate vertical on extend

The caloic cover that exposed portions serve to said caloic portion covers is set, and said caloic cover has electrical insulating property, and has the lower thermal conductivity than said caloic portion.

7. ligthing paraphernalia; It is characterized in that; In the casing that has comprised the installation portion that is installed in utensil configuration position; Be provided with concave mirror and be configured in said concave mirror bottom and radiate the light-emitting component of bright dipping, said concave mirror is provided with and is used to control photodistributed reflecting surface and this reflecting surface has the light transmission that a part of incident light is seen through, and in said casing, is provided with power circuit from the electric power of turning on light to said light-emitting component that supply with.

8. ligthing paraphernalia according to claim 7 is characterized in that, comprising: the base member that said light-emitting component is installed and is made up of thermally conductive materials, one side at the back side of said base member is provided with the heat sink that carries out heat bonding with said casing.

9. according to claim 7 or 8 described ligthing paraphernalias, it is characterized in that, comprising: the base member that said light-emitting component is installed and is made up of thermally conductive materials, said base member comprises caloic portion.