CN206036708U - Lighting appliance - Google Patents

Abstract

A take place that can restrain shine inhomogeneous is provided to, can restrain the lighting appliance who joins in marriage the change of light shape form based on light scattering portion. Lighting appliance possesses: the light source, and the optical component of light transmissivity, possess and disposed the first face that inclines at the light source and make the second face of following first light that incides and jetting out to grading to the light from light source incident is controlled, and the optical component possesses, to the light from light source incident at least some carry out the total reflection, thereby carry out the total reflection portion that controls to the optical distance of this light, the second mask fully, the messenger is incided control light zone territory that light after the total reflection among the light of total reflection portion jetted out and as the uncontrolled light zone territory that makes not the region that is jetted out by the light of total reflection, with control light zone territory at least some compare, uncontrolled light zone territory partly at least makes the wide range ground diffusion that jets out.

Description

Ligthing paraphernalia

Technical field

The utility model is related to, the ligthing paraphernalia for possessing the optics of translucency.

Background technology

For the ligthing paraphernalia of embedded type, for example, ceiling (attached portion) is embedded in and is configured in as Down lamp Irradiation light downwards ceiling embedded illuminating apparatus it is known.These ligthing paraphernalias, possess in the inside of appliance body, The optical lens that the light source being made up of LED and the luminous intensity distribution of the light for projecting to light source are controlled.

In the past, in order to will be the optical lens for distribution controls thinning and diminish, and propose and be employed as optical lens Fresnel lens (such as patent document 1).For example, the Fresnel lens disclosed in patent document 1, in the face shape of light incident side Into the groove for having concentric circles, with jagged cross sectional shape.The situation of such Fresnel lens is utilized in ligthing paraphernalia Under, because of the cross sectional shape, and the irradiation of the ring-type in photoirradiated surface generation somewhat is uneven.

Then, for the ligthing paraphernalia disclosed in patent document 1, it is proposed that integrally apply reality in the outgoing plane of Fresnel lens Small light diffusion part (little recess).Hereby it is possible to the light for projecting suitably is spread, therefore, it is possible to press down The described irradiation of system is uneven.

(prior art literature)

(patent document)

Patent document 1：Japanese Unexamined Patent Publication 2015-138761 publications

However, for the ligthing paraphernalia disclosed in patent document 1, being expanded from the injection light of Fresnel lens by light diffusion part Dissipate, therefore, the region projected beyond illumination is mapped to desired irradiation area of a part.Accordingly, disclosed in patent document 1 Ligthing paraphernalia in, there is a problem of because of light diffusion part and luminous intensity distribution change in shape.

Utility model content

Then, the utility model is provided, and can be suppressed to irradiate uneven generation, and can be suppressed based on light diffusion part Luminous intensity distribution shape change ligthing paraphernalia.

In order to solve one of the problem, ligthing paraphernalia embodiment that the utility model is related to, possess：Light source；And The optics of translucency, possesses the first face and the second face, also, the luminous intensity distribution to the light from the light source incidence is controlled System, first face are configured in the light source side, and second face makes from the incident light in first face to project, the optics Part possesses total reflection portion, and the total reflection portion is totally reflected at least a portion of the light from the light source incidence, so as to The light path of the light is controlled, second face possesses control light region and non-controlling light region, the control light region It is the region of the light injection after making to incide the total reflection among the light in the total reflection portion, the non-controlling light region is to make The region that the light not being totally reflected is projected, compared with least a portion in the control light region, the non-controlling light region At least a portion, the light of injection is significantly spread.

And, or, the non-controlling light region possesses multiple recesses of dome shape or convex portion.

And, or, the control light region possesses flat part.

And, or, the optics is Fresnel lens, and second face has multiple institutes of concentric circles State non-controlling light region.

According to the utility model, using the teaching of the invention it is possible to provide can suppress to irradiate uneven generation, further, it is possible to suppress to expand based on light The ligthing paraphernalia of the change of the luminous intensity distribution shape in scattered portion.

Description of the drawings

Fig. 1 is the oblique view of the outward appearance of the ligthing paraphernalia for illustrating that embodiment is related to.

Fig. 2 is the exploded perspective view of the ligthing paraphernalia that embodiment is related to.

Fig. 3 is the sectional view of the ligthing paraphernalia that embodiment is related to.

Fig. 4 is cutting for the summary of the light path for illustrating the inside in ligthing paraphernalia that embodiment is related to from light source to optics Face figure.

Fig. 5 is the sectional view of the summary of the light path of the inside for illustrating optics in ligthing paraphernalia that embodiment is related to.

Fig. 6 is the plan in the second face of the optics for illustrating that embodiment is related to.

Specific embodiment

Hereinafter, for embodiment of the present utility model, it is described with reference to the accompanying drawings.And, embodiment explained below, all A preferred specific example of the present utility model is shown.Therefore, numerical value shown in below example, shape, material, composition Key element, the allocation position of inscape and connection form etc. are examples, rather than limit purport of the present utility model.Cause This, for the inscape of below example in, do not have in embodiment illustrating upper concept of the present utility model The inscape of record, is illustrated as arbitrary inscape.

And, each figure is ideograph, the figure for not necessarily tightly illustrating.Also, in each figure, to substantial phase Same structure encloses identical symbol, and the explanation of repetition is omitted or simplified.

(embodiment)

[1. overall structure]

The overall structure of the ligthing paraphernalia being related to firstly, for embodiment, is illustrated using Fig. 1 to Fig. 3.

Fig. 1 is the oblique view of the outward appearance of the ligthing paraphernalia 1 for illustrating that the present embodiment is related to.

Fig. 2 is the exploded perspective view of the ligthing paraphernalia 1 that the present embodiment is related to.

Fig. 3 is the sectional view of the ligthing paraphernalia 1 that embodiment is related to.

And, in each figure, the direction parallel with optical axis J is set to into y-axis direction, will be vertical with optical axis J and each other just The both direction of friendship is set to z-axis direction and x-axis direction.In the present embodiment, y-axis direction is, vertical direction.

Ligthing paraphernalia 1 shown in Fig. 1 to Fig. 3 is for example, to be embedded in and be configured in the mounted of the ceiling of building etc. The embedded illuminating apparatus of the Down lamp of (floor and wall etc.) downwards irradiation light in portion etc..In the present embodiment, luminaire The direction (light injection direction) for projecting light from ligthing paraphernalia 1 is set to front by tool 1, will be projected direction in opposite direction with the light and be set For rear.If that is, by arrange ligthing paraphernalia 1 ceiling surface be set to benchmark, the floor side compared with ceiling surface Direction (lower section) is front, and compared with ceiling surface, the direction (top) of upside is rear.Also, y-axis direction minus side is front, Y-axis direction positive side is rear.

As shown in FIG. 2 and 3, ligthing paraphernalia 1 possesses, appliance body 10, framework 20, light source 30, installing component 32, company Relay part 36, reflection part 40, optics 50 and cartridge 60.Hereinafter, illustrate that each composition of ligthing paraphernalia 1 will Element.

[1-1. appliance bodies]

Appliance body 10 is internally to configure the part of light source 30.In the present embodiment, appliance body 10 is, for pacifying The erecting bed of dress light source 30.Appliance body 10, also serves as making the radiator of the thermal scattering occurred in light source 30 carry out function.Cause This, it is preferred that appliance body 10, it is made up of the high material of the thermal conductivity of metal material etc..Appliance body 10 is, such as by aluminium The aluminium diecasting system of composition.As Fig. 3 illustrates that appliance body 10 possesses, cover portion 11, installation portion 12 and radiating part 13.

Installation portion 12 is, for installing the part of the mesa-shaped of light source 30.As Fig. 3 is illustrated, in the front side of installation portion 12, match somebody with somebody Light source 30 is put, in the rear side of installation portion 12, radiating part 13 is configured.Accordingly, the heat for occurring in light source 30, is expeditiously communicated to Radiating part 13.

Cover portion 11 is to be arranged on edge, the part of ambient light source 30 optical axis J tubular of installation portion 12.From cover The front side end in portion 11, projects the injection light of ligthing paraphernalia 1.As Fig. 3 is illustrated, in the inner surface of cover portion 11, setting makes tubular Second fastener 114 of the locking of part 60.In the present embodiment, the second fastener 114 is the inner surface for being formed on cover portion 11 Ring-type groove.

Radiating part 13 is the part of the thermal scattering for making to occur in light source 30, also, possesses multiple blades.Radiating part 13, quilt It is formed in the rear side of installation portion 12.

[1-2. frameworks]

Framework 20 is, for appliance body 10 to be arranged on the part of the attached portion of ceiling etc..In the present embodiment, Framework 20 is the substantially cylindric part of the cover portion 11 for surrounding appliance body 10.As shown in FIG. 2 and 3, framework 20, Outer peripheral face possesses installation spring 25.Installing spring 25 is, for by framework 20, being installed to the attached portion as ligthing paraphernalia 1 Structure material elastomeric element.In the present embodiment, three installation springs 25, are arranged on the outer peripheral face of framework 20.

It is configured in the present embodiment, by changing relative angle of the appliance body 10 relative to fixed framework 20, So as to change the injection direction of the injection light from appliance body 10.That is, the ligthing paraphernalia 1 that the present embodiment is related to It is, universal Down lamp.

Framework 20, for example, can be formed by the metal material of aluminium etc..

[1-3. light sources]

Light source 30 is, light emitting module, and with the light source of the radial light for projecting regulation.In the present embodiment, light source 30 It is, the light emitting module with LED.Light source 30 is configured to, and projects such as white light.Light source 30, by COB (Chip On Board) Type LED is constituted, and as shown in Figure 2, is possessed：Base station 302；As multiple indigo plants of the bare chip (LED chip) on base station 302 Color LED304；And seal these LED304, the seal member comprising fluorophor.And, in the present embodiment, seal member All of LED304 is sealed in the lump, but, the structure of seal member is not limited only to this.Can also be configured to, along being arranged with wire The orientation of the LED304 of row, forms seal member with a plurality of wire.

Light source 30, is installed in the installation portion 12 of appliance body 10.In ligthing paraphernalia 1, the direction of the optical axis J of light source 30 It is vertically oriented (the y-axis direction of each figure).

Base station 302 is, for installing the installation base plate of multiple LED304, for example, is ceramic substrate, resin substrate or insulation Coating metal substrate etc..Also, base station 302 is, such as the tabular with the plane of rectangular shape when overlooking, base station 302 Bottom surface (aspect afterwards) is installed in the installation portion 12 of appliance body 10.And, in base station 302, it is formed with for from outside acceptance For the galvanic a pair of electrodes terminal (positive electrode terminal and negative electrode terminal) for making LED304 (light source 30) luminous.

[1-4. installing components]

Installing component 32 is, for light source 30 to be installed to the part of the installation portion 12 of appliance body 10.As shown in Figure 2, Installing component 32 possesses, limiting unit 322 and claw-like portion 324.

Limiting unit 322, the position in the direction vertical with optical axis J (x-axis direction and y-axis direction) to light source 30 are limited System.Limiting unit 322 has, and has the rectangular box-like shape of opening portion in central authorities.The central authorities for being formed on limiting unit 322 open Oral area, with 30 corresponding shape of light source, configure light source 30 in the opening portion.Installing component 32, is configured in installation portion 12 Configuration light source 30 side (front side) face, by the connection member 36 shown in Fig. 2 and screw 38, be fixed to installation portion 12.More specifically, in the limiting unit 322 of installing component 32, through hole 326 is formed with, by screw 38, via through hole 326 The screw for being formed on installation portion 12 is screwed into, so as to installing component 32 is fixed on installation portion 12.Accordingly, installing component 32 and The light source 30 for being configured in its opening portion is fixed on installation portion 12.

Claw-like portion 324 is, for supporting the part of the claw-like of reflection part 40, such as Fig. 3 is illustrated, makes the card of reflection part 40 Only hole portion 440 is engaged.In the present embodiment, installing component 32 possesses, two claw-like portions 324.Claw-like portion 324, with generally l-shaped Shape, the end of claw-like portion 324 to from optical axis J away from the prominent inclined plane (raised) in direction, be inserted into locking hole portion 440, engaged by claw-like portion 324 so as to engage hole portion 440.

For example, using the resin material of polybutylene terephthalate (PBT) (PBT), Merlon etc., installation can be formed Part 32.

[1-5. connection members]

Connection member 36 is, the part being connected with the wiring (not illustrating) for providing electric current to light source 30.The present embodiment is related to Ligthing paraphernalia 1, as shown in Figure 2, possess two connection members 36, the connection member 36 of a side is connected with the wiring of hot side Connect, the connection member 36 of the opposing party is connected with the wiring of low potential side.In connection member 36, oriented light source 30 is set electric current is provided Electrode (not illustrating).The electrode is connected with the electrode terminal for being formed on light source 30.

Also, connection member 36, it may have the function limited by the position of light source 30.In connection member 36, formed Having makes the through hole of 38 insertion of screw, by being inserted into the screw 38 of the through hole, connection member 36 be fixed to installation portion 12 with And installing component 32.Now, as Fig. 3 is illustrated, the end of the optical axis J sides of connection member 36 presses light source 30 to installation portion 12, from And the position in the optical axis J directions (y-axis direction) of light source 30 is limited.

For example, the framework of connection member 36 can be formed using the resin material of PBT, Merlon etc..Also, utilize copper Deng electroconductive component can form the electrode of connection member 36.

[1-6. reflection parts]

Reflection part 40 is, the part being controlled to the luminous intensity distribution of the light from light source 30.In the present embodiment, reflecting part Part 40, makes the light from light source 30 reflect to optics 50.As shown in Figure 2, reflection part 40, pass through with optical axis J is formed with The shape of the substantially tubular of logical opening.

Reflection part 40, such as Fig. 3 illustrate, with being configured to internal diameter from incident side (the y-axis side of the light from light source 30 To positive side) end, the shape of the gradually big substantially tubular in the end of the side projected to the light.In the interior table of reflection part 40 Face, reflects the light from light source 30.

Illustrate such as Fig. 3, in the outer surface side of reflection part 40, be provided with the claw-like portion 324 that is locked to installing component 32 Locking hole portion 440.Locking hole portion 440 is to be arranged on the hole of the part for erectting the outer surface side for being arranged on reflection part 40.Card Only hole portion 440 is locked to claw-like portion 324, so as to reflection part 40 is locked to installing component 32.Accordingly, reflection part 40, via Installing component 32 is installed to the installation portion 12 of appliance body 10.

As shown in Figure 2, in the end of the light exit side of reflection part 40, three claw-like portions 410 are provided with.Claw-like portion 410 It is the part for engaging optics 50.

For example, reflection part 40 can be formed using the white resin material of the hard of PBT etc..And, reflection part 40 Can also, there is the metal film of aluminium etc. in inner surface setting.

[1-7. opticses]

Optics 50 is, the optics of the translucency being controlled to the luminous intensity distribution of the light from 30 incidence of light source.Such as Fig. 3 Illustrate, optics 50 possesses, be configured in the first face 510 of 30 side of light source, and make from the light of 510 incidence of the first face to project The second face 520.Optics 50, with the function that the luminous intensity distribution to the light from 40 incidence of reflection part is controlled to project. In the present embodiment, optics 50 is Fresnel lens.Optics 50, collects the light from 510 incidence of the first face, from second Project the light in the section with circular in face 520.In the present embodiment, the second face 520 of optics 50, with for pressing down The uneven optical scattering structure of system irradiation.For the optical scattering structure, illustrate later.

As shown in Figure 2, in the edge part of optics 50, three recesses 530 are provided with.In the present embodiment, recess 530 It is the part with concave shape in the second face 520 for being arranged on optics 50.The recess 530 of optics 50 blocks The claw-like portion 410 of reflection part 40 is terminated in, so as to optics 50 is locked to reflection part 40.Accordingly, optics 50, via Reflection part 40 and installing component 32 are installed to the installation portion 12 of appliance body 10.Also, thus, in the light of reflection part 40 The end configuration optics 50 of exiting side, so as to the light projected from reflection part 40, expeditiously incides optics 50.

Optics 50, is formed using translucent material, for example, using the saturating of PMMA (propylene), Merlon etc. The transparent material of bright resin material or glass material etc. can form optics 50.

[1-8. cartridges]

Cartridge 60 is that such as Fig. 3 is illustrated, is configured in the part of the tubular of the inner surface of cover portion 11.Cartridge 60 Have, the incident opening portion 610 that makes the light projected from optics 50 incident, and make to incide the light of incident opening portion 610 The injection opening portion 620 of injection.Cartridge 60, is configured in the inner surface and optics of the cover portion 11 of appliance body 10 50 520 side of the second face.

As Fig. 3 illustrates that cartridge 60 is configured to, project opening portion 620 and be located near the front side end of cover portion 11. Also, the length in the optical axis J directions (y-axis direction) of cartridge 60 is that the second face 520 from optics 50 is to cover portion 11 Length till the side end of front or so.Accordingly, cartridge 60, can cover among the inner surface of cover portion 11 from optical section Second face 520 of part 50 part nearby near the front side end of cover portion 11.Here, the inner surface of cartridge 60 (face of optical axis J sides) is, the dazzle of black suppresses face.Hereby it is possible among suppressing the inner surface of cover portion 11 from optics The dazzle of 50 the second face 520 part nearby near the front side end of cover portion 11.

The inner surface of cartridge 60, if the dazzle of black suppresses face, is then not particularly limited.The dazzle of black suppresses face It is that for example, the face to being covered with paint, lacquer, colour wash, etc. with black is performed delustring and processed comes what is can realized.Also, the dazzle of black suppresses the face to be, to Face or the face being made up of the part of black that black is covered with paint, lacquer, colour wash, etc., perform Embossing processing can also realize.Further, in order to enter one Step suppresses the dazzle of the inner surface of cartridge 60, and can be in the inner surface setting stage portion (dividing plate) of cartridge 60.

Cartridge 60, as shown in FIG. 2 and 3, possesses the second engaged part 660 in outer surface.Second engaged part 660 are locked to the second fastener 114, so as to keep cartridge 60 in the inside of appliance body 10.In the present embodiment, second Engaged part 660 is that multiple convex portions, the second fastener 114 are the grooves of the ring-type of the inner surface for being formed on cover portion 11.Tubular Part 60, possesses constituted above, therefore, as long as be inserted into cover portion 11 just simply can install.

For example, cartridge 60 can be formed using the resin material of Merlon, PBT etc..

[the 2. optical scattering structure of optics]

Then, the optical scattering structure in the second face 520 of the optics 50 being related to for the present embodiment, using Fig. 4 to Fig. 6 Illustrate.

Fig. 4 is illustrated in ligthing paraphernalia 1 that the present embodiment is related to from light source 30 to the light path of the inside of optics 50 The sectional view of summary.Heavy line and thick dashed line shown in Fig. 4 represents from light source 30 light path of the light for projecting.And, in the diagram, The first from left half of optics 50 is only shown.

Fig. 5 is the section of the summary of the light path of the inside for illustrating optics 50 in ligthing paraphernalia 1 that the present embodiment is related to Figure.Fig. 5 is, the enlarged drawing in the double dot dash line inframe portion of Fig. 4.

Fig. 6 is the plan in the second face 520 of the optics 50 for illustrating that the present embodiment is related to.

Illustrate such as Fig. 4, the optics 50 that the present embodiment is related to is, Fresnel lens, possessing makes from 30 incidence of light source Anaclasis, come the refraction part 502 being controlled to the light path of the light.Also, optics 50 possesses, to from 30 incidence of light source At least a portion of light is totally reflected, so as to the total reflection portion 504 being controlled to the light path of the light.

Refraction part 502, it is same with convex lens, make anaclasis.In the present embodiment, refraction part 502, make from light source 30 with spoke The anaclasis of shape expansion is penetrated, so as to carry out optically focused.

Total reflection portion 504 is that the part with jagged cross sectional shape shown in Fig. 4 is formed with together in the first face 510 The groove of heart round shape.As shown in figure 5, in total reflection portion 504, the first face 510 possesses, multiple planes of incidence 514 and multiple total reflections Face 516.

As shown in the heavy line of Fig. 5, the most light among the light for inciding the plane of incidence 514 from light source 30, by incidence After face 514 reflects, fully reflecting surface 516 is incided from the inside of optics 50.And, the light of fully reflecting surface 516 is incided, by Fully reflecting surface 516 is totally reflected, so as to light path is controlled.In the present embodiment, the light being totally reflected by fully reflecting surface 516, Xiang Yuguang Axle J direction that be substantially parallel propagation.Thus, incide the major part of the light in total reflection portion 504, from optics 50 control into Propagation be direction that be substantially parallel with optical axis J.Hereinafter, after being incided total reflection portion 504 as above, by fully reflecting surface 516 The light in the second face 520 after total reflection, is reached, light is referred to as controlled.Also, as shown in figure 5, by the control light among the second face 520 The region of injection referred to as controls light region 521.That is, the second face 520 possesses, among inciding the light in total reflection portion 504 Total reflection after light project control light region 521.

On the other hand, as shown in the thick dashed line of Fig. 5, the part among the light for inciding the plane of incidence 514 from light source 30, by After the plane of incidence 514 is reflected, in the state of fully reflecting surface 516 is not incident on, the second face 520 is reached.Hereinafter, so incided Behind total reflection portion 504, in the state of not being totally reflected by fully reflecting surface 516, from the light that the second face 520 is projected, referred to as non-controlling Light.The non-controlling light, as shown in figure 5, by the concentric circles formed by the fully reflecting surface 516 and the plane of incidence 514 of optics 50 Each groove portion of shape is produced, also, by optics 50, with radial injection in the state of inadequately optically focused.Accordingly, exist Non-controlling light do not spread by the second face 520 and in the case of projecting, in the irradiation formed by the control light projected from ligthing paraphernalia 1 Around point, the irradiation for producing the concentric circles formed by non-controlling light is uneven.Therefore, conventional ligthing paraphernalia, makes injection Light all spreads, so as to suppress the irradiation uneven.And, as shown in figure 5, in the second face 520, non-controlling light is projected Region is referred to as non-controlling light region 522.That is, the second face 520 possesses, make to incide it is among the light in total reflection portion 504, The non-controlling light region 522 for not having the light being totally reflected to project.

Possess in the ligthing paraphernalia 1 that the present embodiment is related to, compared with least a portion in control light region 521, non-control At least a portion in light region processed 522, the structure for making the light of injection significantly spread.In the present embodiment, as shown in figure 5, Non-controlling light region 522 possesses, used as multiple recesses 528 of the dome shape of light diffusion part.Accordingly, non-controlling light is spread, because This, it is suppressed that the irradiation of concentric circles is uneven.

On the other hand, in second face 520 in total reflection portion 504, the region beyond non-controlling light region 522 possess, put down Smooth portion 526.That is, at least a portion in control light region 521 possesses, it is suppressed that the flat part 526 of light diffusion.Therefore, In the optics 50 that the present embodiment is related to, as shown in fig. 6, multiple recesses 528 are formed in the second face 520 with concentric circles, Between the multiple recesses 528 formed with concentric circles, equally flat part 526 is formed with concentric circles.Accordingly, it is not necessary to spread Control light at least a portion, substantially do not spread, and projected from the second face 520.Therefore, it is possible to suppress because controlling light quilt Diffusion and caused luminous intensity distribution shape change (it is among the full injection light projected from ligthing paraphernalia 1, be irradiated to desired irradiation The change of the ratio of the light in region).Also, flat part 526 is directed to, mirror finish can be easily carried out, it is flat therefore, it is possible to reduce The light diffusion in smooth portion.

In the described embodiment, in the region-wide of non-controlling light region 522, it is provided with recess 528.That is, such as Fig. 6 Shown, the region for forming recess 528 is consistent with non-controlling light region 522.And, recess 528 can also, be not arranged at non-control Light region processed 522 it is region-wide.For example, it is also possible among being only provided non-controlling light region 522, the intensity of non-controlling light Especially strong region.Accordingly, further, the change of the luminous intensity distribution shape based on light diffusion part can be suppressed.

Also, the region beyond non-controlling light region 522 in the described embodiment, is make use of, substantially expands light Scattered structure, but it is also possible to the region beyond non-controlling light region 522, spreads light.With control light region 521 extremely A few part is compared, and at least a portion in non-controlling light region 522 makes the light of injection significantly spread.For example, also may be used The flat part 526 in the second face 520 being related to replacement the present embodiment, and the recess 528 for utilizing radius of curvature bigger than recess 528. Accordingly, the region beyond the non-controlling light region 522 in second face 520 in total reflection portion 504, with 522 phase of non-controlling light region Than injection light is diffused as little.Accordingly, control light moderately to be spread, therefore, it is possible to suppress as light source 30 using blueness The combination of LED304 and fluorophor and occur control light irregular colour it is even.

Also, in the present embodiment, as light diffusion part, the recess 528 of dome shape is make use of, but it is also possible to utilize The convex portion of dome shape.As light diffusion part, recess or the convex portion of dome shape is make use of, so as to not make the injection light of ligthing paraphernalia 1 Center luminosity be greatly reduced, it is also possible to suppress uneven illumination even.Also, the light that the recess or convex portion by dome shape is constituted Diffusion part, compared with the light diffusion part formed using Embossing processing etc., can be easily controlled the degree of light diffusion, also, energy High repeatability is realized enough.Further, for the light diffusion part of dome shape, can be easily worked, therefore, it is possible to reduce needed for processing The cost wanted.Also, when the shape of light diffusion part is formed by mould, the shape of dome shape is adopted in the shape as light diffusion part In the case of shape, compared to the situation of other shapes (for example, the shape of Embossing processing etc.) is adopted, rubbing for mould can be suppressed Consumption.

And, the structure of light diffusion part is not limited only to recess or the convex portion of dome shape.For example, as light diffusion part, also may be used To utilize the recess with the shape beyond dome shape or convex portion.Also, as light diffusion part, it is also possible to small using combination Plane little planar shape.Also, the part of Embossing processing, shot-peening processing etc. can also will be performed to the second face 520, make Utilize for light diffusion part, it is also possible to diffusion filter is sticked in the second face 520, be used as the utilization of light diffusion part.

Also, in the present embodiment, control at least a portion in light region 521 to have, it is suppressed that the flat part of light diffusion 526, accordingly, substantially spread at least a portion of control light.Therefore, it is possible to suppress the light based on ligthing paraphernalia 1 to spread The change of the luminous intensity distribution shape in portion.Also, in flat part, compared with sphere portion etc., mirror finish can be easily carried out, therefore, The light diffusion of flat part 526 can easily be reduced.

[3. summing up]

As described above, the ligthing paraphernalia 1 that the present embodiment is related to, possesses：Light source 30；And the optics 50 of translucency, With being configured in the first face 510 of 30 side of light source, and make from the light of 510 incidence of the first face the second face 520 projected, and And, the luminous intensity distribution of the light from 30 incidence of light source is controlled.Optics 50 possesses, at least to the light from 30 incidence of light source Part is totally reflected, so as to the total reflection portion 504 being controlled to the light path of the light.Second face 520 possesses, and makes to incide entirely Control light region 521 that light after total reflection among the light of reflecting part 504 is projected, and as the light for making not to be totally reflected The non-controlling light region 522 in the region of injection.Compared with least a portion in control light region 521, non-controlling light region 522 At least partially, the light of injection is made significantly to spread.

Accordingly, at least a portion of non-controlling light is spread, therefore, it is possible to suppress to irradiate uneven generation.Also, with Non-controlling light is compared, control light at least a portion be diffused as it is little, therefore, it is possible to suppress the luminous intensity distribution shape based on light diffusion part Change.

Also, in the ligthing paraphernalia 1 that the present embodiment is related to, non-controlling light region 522 can also possess, dome shape it is many Individual recess or convex portion.

Accordingly, it is greatly reduced the center luminosity of the injection light of ligthing paraphernalia 1, it is also possible to suppress uneven illumination It is even.Also, the light diffusion part that the recess or convex portion by dome shape is constituted, with the light diffusion part phase formed using Embossing processing etc. Than the diffusible degree of light can be easily controlled, further, it is possible to realize high repeatability.Further, for the light of dome shape spreads Portion, can be easily worked, therefore, it is possible to reduce the cost required for processing.Also, the shape of light diffusion part is being formed by mould When, in the case of the shape using dome shape, compared with the situation of the shape using Embossing processing shape, mould can be suppressed Abrasion.

Also, in the ligthing paraphernalia 1 that the present embodiment is related to, control light region 521 can also possess, flat part.

Accordingly, at least a portion of light is controlled, is projected from flat part 526, therefore, substantially do not spread.Therefore, it is possible to Change of the suppression based on the luminous intensity distribution shape of the light diffusion part of ligthing paraphernalia 1.Also, in flat part, compared with sphere portion etc., energy It is enough easily to carry out mirror finish, therefore, it is possible to easily reduce the light diffusion of flat part 526.

Also, in the ligthing paraphernalia 1 that the present embodiment is related to can also, optics 50 is Fresnel lens, the second face 520 have, multiple non-controlling light regions 522 of concentric circles.

(variation etc.)

More than, for the ligthing paraphernalia 1 that the utility model is related to, it is illustrated according to embodiment, but, this practicality is new Type, is not limited only to the embodiment.

For example, in the described embodiment, optics 50 is Fresnel lens, but, optics 50 is not limited only to This.For example, be compound lens etc. the optics of translucency luminous intensity distribution being controlled using total reflection.

Also, in the described embodiment, for light source 30, make use of COB types LED, but it is also possible to sent out using other Optical element.For example, it is also possible to utilize SMD (Surface Mount Device) type LED.Also, organic EL can also be utilized Others beyond other solid-state light emitting elements or solid-state light emitting element of (Electro Luminescence) element etc. Light source.

In addition, implementing form obtained from the various modifications that those skilled in the art expect to embodiment, and do not taking off The form for being combined the inscape and function of each embodiment to realize in the range of objective of the present utility model, It is included in the utility model.

Claims (4)

1. a kind of ligthing paraphernalia, it is characterised in that possess：

Light source；And

The optics of translucency, possesses the first face and the second face, also, the luminous intensity distribution to the light from the light source incidence is carried out Control, first face are configured in the light source side, and second face makes from the incident light in first face to project,

The optics possesses total reflection portion, and the total reflection portion is entered at least a portion of the light from the light source incidence Row total reflection, so as to be controlled to the light path of the light,

Second face possesses control light region and non-controlling light region, the control light region be make to incide it is described complete The region that light after total reflection among the light of reflecting part is projected, the non-controlling light region is the light for making not to be totally reflected The region of injection,

Compared with least a portion in the control light region, at least a portion in the non-controlling light region makes the light of injection Significantly spread.

2. ligthing paraphernalia as claimed in claim 1, it is characterised in that

The non-controlling light region possesses multiple recesses of dome shape or convex portion.

3. ligthing paraphernalia as claimed in claim 1 or 2, it is characterised in that

The control light region possesses flat part.

4. ligthing paraphernalia as claimed in claim 1 or 2, it is characterised in that

The optics is Fresnel lens,

Second face has the multiple described non-controlling light region of concentric circles.