CN104412029A - Linear led lighting arrangement including light emitting phosphor - Google Patents

Linear led lighting arrangement including light emitting phosphor Download PDF

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Publication number
CN104412029A
CN104412029A CN201380032879.1A CN201380032879A CN104412029A CN 104412029 A CN104412029 A CN 104412029A CN 201380032879 A CN201380032879 A CN 201380032879A CN 104412029 A CN104412029 A CN 104412029A
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CN
China
Prior art keywords
light
lamp
lens
phosphor
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201380032879.1A
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Chinese (zh)
Inventor
李依群
杨海涛
李亨哲
C·爱德华兹
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Intematix Corp
Original Assignee
Intematix Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intematix Corp filed Critical Intematix Corp
Publication of CN104412029A publication Critical patent/CN104412029A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/043—Refractors for light sources of lens shape the lens having cylindrical faces, e.g. rod lenses, toric lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements
    • F21V13/14—Combinations of only three kinds of elements the elements being filters or photoluminescent elements, reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/041—Ball lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/10—Refractors for light sources comprising photoluminescent material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/38—Combination of two or more photoluminescent elements of different materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00—Point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

A solid-state linear lamp comprises a co-extruded component, the co-extruded component comprising an elongate lens and a layer of photoluminescent material. The elongate lens is for shaping light emitted from the lamp and comprises an elongate interior cavity. The layer of a photoluminescent material is located on an interior wall of the elongate interior cavity. The lamp further comprises an array of solid-state light emitters configured to emit light into the elongate interior cavity.

Description

The wire LED illumination comprising light emitting phosphor is arranged
Technical field
The present invention relates to solid-state wire illumination application, it comprise light emitting phosphor (embedded photoluminescent material) with produce wave spectrum be different from a part for solid-state light emitters want the light of color.In particular (but not exclusively), the present invention relates to LED-based lighting arrangements, described LED-based lighting arrangements produces light in the visible part of spectrum and (but not exclusively) white light in particular.In addition, the invention provides a kind of method of optical module for this lighting arrangements and making lighting arrangements and optical module.
Background technology
White light-emitting diode (LED) is known in the art and is relatively recent innovation.Until develop LED luminous in the blue/UV region of electromagnetic spectrum, research and develop LED-based white light source and just become actual.As known, produce the phosphor that the LED (" White LED ") of white light is included as embedded photoluminescent material, the part that described phosphor absorbs the radiation of being launched by described LED also launches the radiation of different color (wavelength) again.For example, described LED is transmitted in the blue light in the visible part of spectrum and described phosphor launches sodium yellow again.Or described phosphor can the combination of transmitting green light and red light, green light and sodium yellow or sodium yellow and red light.The part do not absorbed by phosphor of the visible blue light of being launched by LED with the sodium yellow launched mix to provide human eye to it seems light into white.Estimate, White LED may replace incandescent source because it typically is long life of hundreds of thousands hour and high efficiency thereof.High-brightness LED is in vehicle braking lamp and indicator and traffic lights and flash lamp.
For increasing the intensity of light of launching from LED, knownly launching by comprising the lens be made up of plastic material or glass to focus on described light and gaining in strength whereby.With reference to figure 1, show high brightness White LED 2.LED 2 comprises LED chip 4, and described LED chip is installed in plastics or metallic reflection cup 6 and described LED chip is then encapsulated in encapsulation materials (usual epoxy resin 8).Described encapsulation materials comprises the phosphor material for providing color conversion.Usually, the inner surface of cup 6 through silver-plated with towards lens 10 reflect stray light on the surface being installed on encapsulating epoxy resin 8.
Should be appreciated that, this layout has restriction and the present invention is devoted to alleviate these restrictions at least in part.For example, for the high strength LED there is the high strength that is greater than 1W exporting, can cause as the interdependent light characteristic of temperature at the high temperature of the output of the LED combined closely with phosphor material, and the thermal degradation of phosphor material can be occurred in some cases.In addition, can be difficult to maintain the uniformity of the color of the light that a little LED thus launches when phosphor is distributed in epoxy resin, this is because be absorbed by the phosphor meeting with different amount by the light of different path.In addition, owing to being encapsulated and the follow-up placement of lens, therefore the making of this little LED is consuming time.
Summary of the invention
According to embodiments of the invention, provide a kind of wire lighting arrangements comprising wire transparent optical lens, described wire transparent optical lens are for the light mixed and distribute from LED and phosphor emission.Phosphor layer is curved shape in the inner chamber of described wire optical lens.Described LED on wire PCB locates away from described phosphor layer.In certain embodiments, preferably the high efficiency extraction of described lens for light is manufactured with rough surface.By way of example, described wire lighting arrangements can be described as " wire el lamp " in this article.
In certain embodiments, wire el lamp comprises the LED chip array be installed on support member (being such as assemblied in the printed circuit board (PCB) in inside the recess/groove on lens), and wherein inner chamber/room is formed in the inside of described lens.The wall of described room comprises phosphor layer.The surface of described circuit board can be formed or be coated with reflecting material, to make the light from LED chip away from described circuit board and to reflect towards phosphor.The light launched by LED chip is phosphor-converted into luminescence generated by light light, and the chromaticity that the final light of described lamp launches output is (at least in part) wavelength based on the luminescence generated by light light by phosphor emission and the combination of the wavelength of its remaining light any by phosphor from LED chip.Control the color of the light launched from lighting arrangements by suitably selecting the thickness of the phosphor in phosphor composition and described phosphor layer and/or load, the thickness of phosphor and/or load will determine the ratio of the output light being derived from described phosphor.For guaranteeing evenly to export color, described phosphor layer preferably has uniform thickness and has at 20 μm to the typical thickness within the scope of 500 μm.
The layout of lens and shape can be configured to affect the light emitted actual pattern from lamp.In certain embodiments, described lens to have in coverage that allowance (such as) substantially corresponds to the radial angle of the central shaft of lens and lamp edge want direction focusing and the light emitted semi-circular profile exported from lamp that distributes.Described lens can be made up of any applicable material, such as plastic material (such as Merlon, acrylic acid, silicone) or glass (such as based on the glass of silica) or any material.
The layout of phosphor and shape can be configured to affect the light emitted distribution from lamp.Some embodiments provide the phosphor of the cone shape profile of the amount strengthening the light distributed from the side of lamp.Alternate design relates to wherein phosphor to be had and is essentially the semicircle but not lamp of conical profile, and described lamp provides the relatively large Light distribation towards the center of distributed areas.The exact shape of phosphor and/or lens can through selection and through combining to provide any applicable output based version and distribution on demand.Another benefit is, described lens also for provide wherein in highly transparent solid with the room of minimal losses mixed light.Occur the example of this situation when lamp comprises both red LED and blue led in the chamber, and described room allows to be uniformly distributed inside lens from the light (such as, red light) of these LED.
In certain embodiments, the described room in described lens is provided in the chamber in described lamp, and described chamber has the enough large volume for being inserted in by LED array in described chamber.This permits the inside that LED is completely or partially positioned at lens and/or phosphor.The method implementing chamber/room in described lens facilitates pole simple combination part and through improving efficiency because avoiding the loss from external mixing chamber.
Some embodiments are implemented to have clearly thoroughly or the optical material of the lens of transparent nature, and this provides the benefit forming wire optics/wire lens.Or described lens can be configured to operate as the light pipe providing collimation at light source place, therefore light is advanced inside described pipe when not leaving side prolongation distance.Described optical module may be configured with suitably bending side to provide alignment function.In alternative embodiments, described lens are not configured to extend along the whole length of reflector.But described lens form the bending or dome-like shape of only partly filling the internal volume formed by described reflector usually.Coextrusion process can be used to manufacture the structure of phosphor layer, lens and reflector.The concept itself being single component by phosphor and lens co-extrusion is considered to invention.
In certain embodiments, the further operating efficiency of lamp is provided by comprising optical medium (such as, solid optical medium) in indoor.The material of the refractive index of the refractive index having the encapsulation materials mating phosphor, LED more nearly and/or any type on the top of LED can be present in is comprised at the optical medium of described indoor.Described optical medium is optional is generally used for phosphor, LED and/or in the material of any encapsulation materials around LED or mate the material (such as silicone) of refractive index of described material from substantially to belong to.In certain embodiments, modulated structure comprises multilayer " interlayer " structure, and wherein the phosphor layer of given shape is embedded between front lens and the solid filler of indoor.This structure is manufactured by the co-extrusion of (for example) all three layers.
Some embodiments of wire el lamp comprise elongate lenticular, and described elongate lenticular has the room integrally formed of the length continuing described lens, and wherein said room is through formalizing to provide wanted Light distribation pattern.Wire LED array is positioned on circuit board, and providing package is containing the reflecting material for the aperture of LED.Described circuit board is installed on radiator.The sub-assembly comprising radiator, circuit board and reflecting material uses a pair end plate of the recessed end portion waiting to be set in described lens and is attached to described lens.Plan wire el lamp wherein is directly replaced in the embodiment of standard fluorescent lamp, and providing package is containing the end cap in order to be assembled to the suitable connector (the two pin connectors of such as G5 or G13) in standard fluorescent lamp fixture.External reflector also can use to be directed in wanted direction by output light together with lamp.
The angle of coverage of lens is configurable with the irradiation pattern adjusting lamp.Angle of coverage being increased to 360 degree will cause light fixture to have complete 360 degree of irradiations.The base section of lens is configured and lens is provided have (such as) to be in the semi-circular profile becoming to be greater than or less than the illumination angle of the radial angle of 180 degree relative to the central shaft of lamp.The angle of the base section of lens also can through adjustment with the irradiation pattern adjusting lamp, and described lamp tilts along outward direction or inward direction.
In certain embodiments, optical diffusion layer can be provided to be in the visual appearance of lighting device for observer of off state with improvement.Described optical diffusion layer comprises the particle of optical diffraction material, and described particle can reduce in fact otherwise will wavelength conversion component be caused again to launch passing through of the external excitation light of the light of the wavelength with yellowish/orange hues.For example, the particle of the optical diffraction material in described optical diffusion layer is through selecting the magnitude range to have the probability increasing its scattering blue light, and this means less outside blue light by described optical diffusion layer to excite described wavelength conversion layer.Optical diffraction particle size can through select make described particle by the blue light of scattering than it by relatively many for the light produced by phosphor material of scattering (such as reaching at least twice).Preferably, for strengthening the white appearance being in the lighting device of off state, the optical diffraction material in optical diffusion layer is " nano particle " with the average particle size being less than about 150nm.For launching the light source with the light of other color, described nano particle may correspond in other mean size.For example, for UV light source, the optical diffraction material in optical diffusion layer can have the average particle size being less than about 100nm.Embodiments of the invention can be used for reducing the phosphor material amount manufactured needed for LED illumination product, consider the relatively costly essence of phosphor material whereby and reduce the cost manufacturing this little product.In particular, the interpolation of the optical diffusion layer be made up of the particle of optical diffraction material can reduce in fact the light emitted required phosphor material amount producing selected color.Can make differently to be incorporated in LED by light-scattering material, this can reduce in fact the light emitted required phosphor material amount producing selected color.In addition, described optical diffusion layer can be used together to reduce the light emitted required phosphor material amount producing selected color further in conjunction with extra scattering (or the reflection/diffraction) particle in wavelength conversion component.A kind of possibility method is wherein contained in individual course by light-scattering material.Another kind of possibility method is wherein contained in by light-scattering material in the layer containing phosphor.Another possibility method is, is wherein incorporated in lens by light-scattering material.Also can implement any combination of above method.For example, described light-scattering material can be incorporated in both phosphor layer and lens.In addition, described light-scattering material can be contained in individual course and described both phosphor layers.In addition, described light-scattering material can be contained in each in described individual course, described phosphor layer and described lens.
Alternative can be taked to improve the off state white appearance of lamp.For example, can (such as) in the outer surface of lens, texture be incorporated in the outer surface of lamp to improve the off state white appearance of lamp.Another possibility method is, directly after yellow phosphor layer, implements thin white layer before clear wire optics thoroughly.This three-decker will be white appearance in off state, but primary optics will be saturating clearly (non-diffuse/ambiguous).The method has the benefit keeping the Light distribation pattern of wire lens optics simultaneously still to provide white appearance.
Inner chamber is used also to can be applicable to non-linear shape lamp as the method for " mixing chamber ".In certain embodiments, provide LED illumination to arrange, wherein lens comprise solid hemi-spherical shape, and the indoor that LED chip is installed on described lighting arrangements make in its inside being fully housed in the profile of phosphor.But described lens can through making to provide any applicable shape on demand.For example, substitute LED illumination according to an embodiment of the invention and arrange it is that wherein said lens comprise solid oval shape.
About wire el lamp embodiment, any applicable manufacturing process can be adopted to manufacture lamp/subassembly.For example, wherein use serigraphy can be adopted ink to be directly printed onto the typography on lens surface.Other printing technology can be used print and/or associated with phosphor coating, such as, use roll coater to be coated on lens by phosphor ink.Spraying can be used for phosphor-coating to another technology on lens.Also can perform lamination to manufacture wire el lamp.In this method, the independent phosphor material thin slice that (such as) has or do not have carrier layer clearly is thoroughly manufactured.Then, phosphor film sheet is laminated on optical lens/tubular construction.Coextrusion process can be performed arrange to manufacture wire el lamp.Two extruders can be used for being fed to form both materials of phosphor layer and lens in individual tool, are wherein formed in this method simultaneously and manufacture described two layers together.If the room in lens comprises solid optical medium, so co-extrusion method can be used to manufacture three layers by three extruders.
In certain embodiments, the multilayer optical assembly integrally comprising phosphor portion, lens and reflector sections is provided.Three layers of expressing technique can be utilized to manufacture multilayer optical assembly, and wherein three extruders are for being fed in individual tool to form phosphor layer, the material of lens and the material of reflector.Three extruders to be used for being fed in individual tool to form three individual member bed of materials, comprise phosphor, the material of lens and the material of reflector.Formed in this method simultaneously and manufacture described three layers together.The method can use together with the various source materials (such as PC-Merlon, PMMA-poly-(methyl methacrylate) and PET-poly terephthalic acid second two fat) comprising major part or whole thermoforming plastic.These three layers of expressing techniques can use the particle the same as or similar to the particle for injecting forming material usually.If the room in lens comprises solid optical medium, so four layers of extrusion method can be used to manufacture multiple layer by four extruders.
In certain embodiments, the circuit board with LED array be installed to supportive body and with described supportive body thermal communication.Reflector is formed with the lower flange portion that the core away from multilayer optical assembly extends.Described flange portion is configured to fill in the passage in described supportive body.
In certain embodiments, utilize the coextrusion process manufacturing and have the multilayer optical assembly of LED array, wherein LED 22 is attached to the structure be fed in co-extrusion equipment, makes described multilayer optical assembly attach to the circuit board with LED when it is formed.
The described interior room of described lamp can be filled with optical medium.The optical medium of described indoor comprises the material of the refractive index of the refractive index having the encapsulation materials mating phosphor, LED more nearly and/or can be present in any type on the top of LED, such as, and solid material.Described optical medium is optional is generally used for phosphor, LED and/or in the material of any encapsulation materials around LED or mate any applicable material (such as, silicone) of refractive index of described material from substantially to belong to.If the room in lens comprises solid optical medium, co-extrusion method so can be used also to comprise optical medium with (such as) by adding the extruder of the material being used for optical medium to manufacture multilayer optical assembly.
Light diffusion/scattering material can use together with described multilayer optical assembly.Described light diffusion/scattering material is useful for reducing the light emitted required phosphor material amount producing selected color.Described light diffusion/scattering material is also useful for the off state white appearance of improvement lamp.Described light diffusion/scattering material can cover in any one in some layers of multilayer optical device.For example, in the layer that described light diffusion/scattering material can be incorporated into containing phosphor, add lens to, be included as the every any combination of complete individual course or more.
In any one in disclosed embodiment, the combination of solid optical medium and phosphor can be replaced by material layer, and the complete ring type filling of described material layer around the volume of LED, but also comprises the phosphor integrally in described material layer.This provides hybrid remote phosphor/not remote phosphor method, phosphor is arranged in the material layer of filling inner chamber thus, but some phosphors are arranged near being bordering on LED place (being adjacent to the material part of LED), but most of phosphor is apart from LED (in the outer part of the material away from LED) in fact quite far away.Therefore, many advantages that the method provides remote phosphors to design, also make light conversion efficiency maximize (caused owing to eliminating not mating of refractive index because eliminating Air Interface) simultaneously.Manufacture also can be more cheap and easier because expressing technique and equipment only need to extrude single material layer, but not an extruder be used for phosphor material and an independent extruder for optical medium material.
Some embodiments comprise the reflector with High lateral wall.Described sidewall is useful for being focused in wanted direction by the light launched from lamp.
According to some embodiments, one or more wire lighting arrangements is positioned over the inner side of envelope to form the refill-unit of standard incandescent bulb.Described lamp can comprise the modular electrical connector (such as, standard Edison-type connector) allowing lamp to use in conventional illuminator.Described wire lighting arrangements is vertical orientation, axially extends in lamp.In inside, the LED in described wire lighting arrangements is the central shaft radial directed from lamp.There is provided the good total emission pattern from lamp in this emission angle being configured in wide region, wherein the definite size (such as, length, width) of wire lighting arrangements is through selecting will launch profile to provide.Envelope can be configured in any applicable shape.In certain embodiments, envelope comprises standard lamp shape.This permits lamp and uses in any application/position originally can implemented by standard incandescent bulb.Envelope can comprise diffusing globe or use together with described diffusing globe.In certain embodiments, scattering particles is provided in envelope place as layers of additional materials or be directly incorporated in the material of envelope.
Can adopt and use the line build-in test of any one in above method to control the change that finally manufactures a product and to make described change minimize.By co-extrusion system, a kind of possibility method in order to perform line build-in test is mounted in colorimeter or the spectrometer of Active measuring product color when product is extruded.This survey tool will be installed online usually after cooling bath and drier but before being cut.Color measurements provides the Real-time Feedback to extrusion system, and described extrusion system changes and adjustment layer thickness by making the relative pressure of two extrusion screw rods.Described phosphor layer is fabricated as thicker or thinner with the color of the tuning product in real time when extruding.This allows to have the monochromatic system degree of accuracy simultaneously can implementation quality inspection in real time during expressing technique.Class liny build-in test can use together with printing and painting method.
In certain embodiments, the length L of the outer surface of lens 1exceed the length L on the surface of phosphor portion 2.In certain methods, length L 2l 1at least twice.
Optical module can comprise the tool axial length l of the smooth end having hemispherical end and can be installed to LED and the cylinder-shaped body of radius r, on the cylindrical surface that wherein said phosphor is provided in described assembly and semispherical surface.In certain embodiments, aspect ratio is 3:1 (but can adopt other ratio in a particular embodiment).
According to some embodiments of the present invention, significantly eliminate by some factors in following factor or all factors being implemented in lamp design or reducing SQE loss: (i) remote phosphors; (ii) Coupling optics; And (iii) has the phosphor wavelength conversion layer of the aspect ratio being greater than 1:1.
To understand, the feature of embodiment described herein capable of being combined when not deviating from scope of the present invention.In addition, multiple claim dependent claims is contained.For example, aforementioned paragraphs can combine to middle disclosed subject matter in any combination.
Hereafter describe in detailed description of the invention, graphic and claims of the present invention in, the further details of target and advantage.Aforementioned general description and following both detailed descriptions are all exemplary and illustrative, and do not intend for the restriction to scope of the present invention.
Accompanying drawing explanation
Fig. 1 is schematically showing of known White LED as already described;
Fig. 2 is schematically showing of LED illumination layout to 7;
Fig. 8 is the end-view of LED wire el lamp lighting arrangements according to an embodiment of the invention;
Fig. 9 is the schematically showing of LED wire el lamp lighting arrangements according to an embodiment of the invention to 12;
Figure 13 is the end-view of the LED wire el lamp lighting arrangements according to alternate embodiment of the present invention;
Figure 14 A and 14B is the end-view of the Additional examples of composition of LED wire el lamp lighting arrangements;
Figure 15 is schematically showing of the LED wire el lamp lighting arrangements with scattering particles to 17;
Figure 18 is that the schematic cross-sectional that the LED illumination with interior chamber is arranged represents;
Figure 19 is that the schematic cross-sectional that the LED illumination with interior chamber and avette lens shape is arranged represents;
Figure 20 is schematically showing of the alternative LED wire el lamp lighting arrangements with scattering particles to 22;
Figure 23 is the schematic end of LED wire el lamp assembly;
Figure 24 is utilize the emission types of the example lamp of the assembly of Figure 23 graphic;
Figure 25 is the schematic end of LED wire el lamp assembly;
Figure 26 is utilize the emission types of the example lamp of the assembly of Figure 25 graphic;
Figure 27 A is that wherein lens provide schematically showing of the LED wire el lamp lighting arrangements of alignment function;
Figure 27 B is schematically showing of alternative LED wire el lamp lighting arrangements;
Figure 28 is the end-view of the LED wire el lamp assembly wherein providing particular aspect ratio;
Figure 29 illustrates the end-view with the lamp of multilayer optical assembly according to some embodiments of the present invention;
Figure 30 illustrates the end-view of the lamp with multilayer optical assembly, and wherein optical medium is positioned over indoor;
Figure 31 illustrates the end-view of the lamp with multilayer optical assembly, and described multilayer optical assembly comprises scattering particles further;
Figure 32 illustrates the end-view of the lamp with multilayer optical assembly, is wherein positioned over indoor optical medium and comprises embedded photoluminescent material;
Figure 33 illustrates the end-view of the lamp with multilayer optical assembly, and wherein reflector comprises high wall; And
Figure 34 and 35 is perspective views of the LED of the wire lighting arrangements with vertical orientation.
Detailed description of the invention
For understanding the present invention better, only by way of example embodiments of the invention will be described with reference to accompanying drawing now.
With reference to figure 2, it shows that the LED illumination for generation of the light (for example white light) of selected color arranges 20.Lighting arrangements 20 comprises the LED chip 22 of the light (i.e. radiation) that can operate to produce the wavelength be preferably in 300nm to 500nm scope, preferably gallium nitride chip.LED chip 22 is installed on to have and is deposited on argent on its inner surface to make light inside the stainless steel casing or reflector 24 of the output reflection of described lighting arrangements.Convex lens 26 are provided to arrange from described the light exported to focus on.In illustrated example, lens 26 are hemispherical in fact in form.Lens 26 by plastic material (such as Merlon, acrylic acid, silicone) or glass (such as based on the glass of silica) or can be made any material that the wavelength of the light produced by LED chip 22 is transparent in fact.
In fig. 2, lens 26 have smooth (flat in fact) surface 28 providing phosphor layer 30 before lens are installed to shell 22 thereon.Phosphor 30 can comprise any embedded photoluminescent material, such as nitride and/or sulfate phosphor materials, nitrogen oxide and oxysulfate phosphor, garnet material (YAG) or quanta point material.To usually mix with adhesive material (such as epoxy resin or silicone resin) or transparent polymer material in the phosphor of powder type and the surface then described mixture being applied to lens to provide phosphor layer 30.By brushing, dropping or spraying or those skilled in the art, other deposition technique easily understood is applied described mixture.In addition, described phosphor blends preferably comprises the light diffusion material of such as titanium oxide, silica or aluminium oxide further to guarantee more even light output.
Controlled the color of the light launched from lighting arrangements by the mass loading of the thickness and/or phosphor of suitably selecting phosphor composition and phosphor layer, the thickness of phosphor layer and/or the mass loading of phosphor will determine the ratio of the output light being derived from described phosphor.Guarantee evenly to export color, described phosphor layer preferably has uniform thickness and has at 20 μm to the typical thickness within the scope of 500 μm.
The advantage of this little lighting arrangements is, without the need to being incorporated into by phosphor in the encapsulation materials in LED.In addition, easily change by providing the different lens with suitable phosphor layer by the described color arranging the light exported.This makes it possible to large-scale production common laser package.In addition, these lens provide direct color conversion in LED illumination is arranged.
With reference to figure 3, it shows that further LED illumination arranges 20, and wherein phosphor 30 is provided as the layer on the spirogyrate surface 32 of lens 26.In this embodiment, the form of lens 26 is domed shape.
Fig. 4 shows that LED illumination arranges 20, and wherein lens 26 comprise hemispherical shell and phosphor 30 in fact and are provided on the inner surface 34 of lens 26.The advantage be provided in by phosphor on inner surface is, lens 26 are then for LED and phosphor provide environmental protection.Or described phosphor can be applied for the layer (displaying) of the outer surface of lens 26.
Fig. 7 shows that LED illumination arranges 20, and wherein optical module comprises solid lens 26 spherical in fact and phosphor is provided in going up at least partially of spherical surface 44.In preferred arrangements, as illustrated, phosphor is applied to the only part on surface, and then described surface is installed in the volume that defined by shell.By mounted lens 26 in this way, this provides the environmental protection of phosphor 30.
Fig. 5 illustrates LED illumination and arranges 20, and wherein lens 26 (optical module) comprise spherical shell in fact and phosphor 30 is deposited as the layer gone up at least partially of inner spherical surface 36 or outer spherical surface 38 and LED chip 22 is installed in described spherical shell.For guaranteeing uniform radiation-emitting, be advantageously incorporated to a plurality of LED chip, wherein said chip makes it separately along different directions utilizing emitted light through orientation.As the light source for replacing existing incandescent source (bulb), this form is preferred.
With reference to figure 6, it shows that further LED illumination arranges 20, and wherein optical module 26 comprises hollow cylinder form and phosphor is applied to inner curved surfaces 40 or outside sweep surface 42.In this arranges, laser chip preferably includes the linear laser chip array arranged along cylindrical axle.Or lens 26 can comprise solid cylinder (displaying).
The embodiment of Fig. 6 describes the example of wire lighting arrangements/wire el lamp 21 substantially, and wire lighting arrangements/wire el lamp 21 is the lighting apparatus usually with elongated tubular profile.These lamps are common in many offices or working space environment, and much business and public building will be incorporated to light fixture and ceiling recess/groove to assemble the wire el lamp (such as standard tubular T5, T8 and T12 lamp) of normal size routinely in ceiling.
Wire el lamp makes electricity consumption implement to excite the fluorescent tube technology of the gas-discharge lamp of mercuryvapour by including usually.But, there is many shortcomings about routine based on the lamp of fluorescence.For example, the mercury in fluorescent lamp is considered to poisonous, and the breakage of fluorescent lamp (especially in pipeline or airway) can need expensive cleaning work to remove described mercury (as recommended by Environmental Protection Department).In addition, but fluorescent lamp manufactures quite expensive, and this is partly regulated caused by the requirement of the electric current in this little lamp by use ballast.In addition, fluorescent lamp has quite high ratio of defects and relatively low operation lifetime.
By contrast, LED-based wire el lamp overcomes these problems be associated with fluorescent lamp.Different from fluorescent lamp, LED-based wire el lamp is without any need for mercury.Compared with fluorescent lamp, LED-based every watt, lamp can produce higher lumen, has comparatively Low Defectivity and higher operation lifetime simultaneously and expects.
Method demonstrated in Figure 6 provides the layout of wherein launching the light produced by wire el lamp along all directions.Phosphor layer 30 and lens/optical module 26 are fully around wire LED 22 array.Therefore, the light produced by described lamp is launched in whole 360 degree of directions of the central shaft apart from described lamp.
Fig. 8 illustrates LED-based according to an embodiment of the invention wire el lamp 21, wherein along preferential direction from described wire el lamp utilizing emitted light.LED chip 22 array is installed on the support member (such as, printed circuit board (PCB) 25) in the inside recess 23 that is assemblied on lens 26.Inner chamber/room 33 is formed in the inside of lens 26.The wall of room 33 comprises phosphor layer 30.In certain embodiments, LED chip 22 comprises the gallium nitride chip of the light (i.e. radiation) that can operate to produce the wavelength be preferably in 300nm to 500nm scope.The surface of circuit board 25 can form or be coated with reflecting material 52 to make the light from LED chip 22 away from circuit board 25 and to reflect towards phosphor 30.
Available light extraction capping 27 covers or is otherwise encapsulated each in the LED in LED chip 22 array.Light extracts capping 27 and reduces excessively not mating between the refractive index of LED 22 and the refractive index of the air in interior chamber 33.Any coupling of refractive index, can cause the signal portion of LED light from total LED light output loss.Extract capping 27 by comprising light, this contributes to reducing excessively not mating of refractive index, thus promotes the increase of the overall light conversion efficiency of lamp 21.
The light launched by LED chip 22 is converted to luminescence generated by light light by phosphor 30.The final light of lamp launches the wavelength of chromaticity (at least in part) based on the luminescence generated by light light launched by phosphor 30 and the combination of the wavelength of its remaining light any by phosphor 30 from LED chip 22 that export.Control the color of the light launched from lighting arrangements by suitably selecting the thickness of the phosphor in phosphor composition and phosphor layer and/or load density, the thickness of phosphor and/or load density will determine the ratio of the output light being derived from phosphor.Guarantee evenly to export color, described phosphor layer preferably has uniform thickness and has at 20 μm to the typical thickness within the scope of 500 μm.
Light emitted actual pattern from lamp 21 affects by the layout of lens 26.In the present example, lens 26 have allowance (such as) substantially correspond in lens 26 and the coverage of the radial angle of the central shaft of lamp 21 along want direction focusing and the light emitted semi-circular profile exported from described lamp that distributes.Lens 26 can be made up of any applicable material, such as plastic material (such as Merlon) or glass (such as based on the glass of silica) or any material.
Distribution from the light of lamp 21 also affects by the shape of the phosphor 30 in room 33.Lamp 21 demonstrated in Figure 8 has the phosphor 30 of the cone shape profile of the amount strengthening the light distributed from the side of lamp 21.Figure 13 illustrates wherein phosphor 30 to be had and is essentially semicircle but not the alternate design of conical profile.The method provides the relatively large Light distribation towards the center of distributed areas.The exact shape of phosphor 30 and/or lens 26 can through selection and through combining to provide any applicable output based version and distribution on demand.
Room 33 is provided in the chamber (being also called " mixing chamber ") in lamp 21 herein, and described chamber has the enough large volume for being inserted in by LED 22 in described chamber.This permits the inside that LED 22 is completely or partially positioned at lens 26 and/or phosphor 30.
In the method for Fig. 8, recess/groove 23 is incorporated in the outline of lens 26 to adapt to the direct placement of PCB 25 or chip on board (COB) array.In the method for Figure 14, the groove be formed in lens 26 is permitted PCB 25 and is slided and support in described groove.PCB or COB surface has reflecting layer placed thereon or coating 52 reflects towards phosphor 30 with the light making LED launch.The lower surface of lens 26 also can be coated with reflecting material 50.In lens 26, implementing the method for chamber/room 33 facilitating pole simple combination part because avoiding the loss from external mixing chamber and through improving efficiency.
Arrange that the benefit provided is thus, described room is provided in highly transparent solid with minimal losses mixed light.Occur the example of this situation when lamp comprises both red LED and blue led in the chamber, and described room allows to be uniformly distributed inside lens from the light (such as, red light) of these LED.The a variety of causes of the advantage provided by internal mix room is provided.For example, a kind of reason be due to the layout of internal mix room provide light across wall emission.Although reflector is still provided on " base " of lamp, a wall from phosphor is also spanned to another wall and without the need to from reflector reflects by the most of light moving through mixing chamber, thus improves the efficiency that lamp produces for its photoproduction.Another benefit provided by described layout is, it removes the point source impact in lamp with indivedual LED.Each LED is the point source of light (such as, blue or red light), but due to LED be the indoor being coated with phosphor at Qi Bi, therefore will the some source effect of LED be made obviously fuzzy by the light of phosphor emission.Another advantage is the directionality provided by current layout.Replacing lamp due to most of fluorescence will be inserted in ceiling or wall fixture, therefore probably will provide light emitted along wanted direction (such as, away from ceiling or wall).Use lens and interior chamber configuration the present embodiment along want orientation enhancement light emitted directionality.Another benefit provided by embodiments of the invention is, the phosphorescence scale of construction needed for manufacture lamp can be minimized for giving the lamp of sizing.Although the external dimensions of lamp can be sizable because of the size of lens, in fact the small surface area of interior chamber also means described lamp needs the much smaller phosphorescence scale of construction.The another benefit of little interior chamber is, when viewing is in the lamp of off state, it reduces the apparent size of phosphor component.
The optical material of lens 26 is had clearly thoroughly or transparent nature also provides the benefit forming wire optics/wire lens.Or described lens can be configured to operate as the light pipe providing collimation at light source place, therefore light is advanced inside described pipe when not leaving side prolongation distance.For example, Figure 27 A shows that wherein optical module 26 is configured with suitably bending side to provide the lamp of alignment function.This arrange in, from phosphor 30 launch with special angle impact lens 26 wall light will (such as) at least in part based on lens 26 light pipe effect and edge in downward direction reflect away from those walls.This result can not need to realize when comprising reflecting material 50 on the wall of lens 26, but the comprising improvement along in downward direction radiative efficiency of reflecting material 50.
The alternate embodiment of Figure 27 B display lamp 21, wherein lens 26 are not configured to extend along the whole length of reflector 50.But lens 26 form the bending or dome-like shape of only partly filling the internal volume formed by reflector 50 substantially.The suitable configuration of lens 26 and reflector 50 is permitted the method and is formed the direct lamp refill-unit with any wanted light emission characteristics.In both methods of Figure 27 A and 27B, coextrusion process can be used to manufacture the structure of phosphor layer, lens and reflector.
In the embodiment in fig. 8, light is normally non-structured when not having collimater.But present example forms the wire lens optics with material clearly being thoroughly coupled to less linear light source (phosphor layer).Allow to control Light distribation pattern exactly with minimal losses, this is because there is not Air Interface between remote phosphor and optics through combined system.Cross section shows in figure is coupled into the light source of individual unit and single optics together.Specific wire beam type formula can be configured by the shape relative to light source design wire lens.In fact, lens 26 (such as) can be used by focusing on the institute's emission characteristic setting making the light produced by described lamp from the light emitted of lamp.
In certain embodiments, the further operating efficiency of lamp is provided by comprising optical medium in room 33.Optical medium in room 33 comprises the material (such as, solid material) of the refractive index of the refractive index having the encapsulation materials mating phosphor 30, LED 22 more nearly and/or can be present in any type on the top of LED 22.A kind of reason of described optical medium is used to be to eliminate the Air Interface be present between LED 22 and phosphor 30.The problem that this embodiment solves is that what to exist between the refractive index of the air in the refractive index of the material of phosphor 30 and the internal volume 33 of lamp 21 does not mate.This of the refractive index at the interface between air with lamp assembly does not mate can cause the signal portion of light with the form loss of heat production.Therefore, the input electric power for specified rate produces the light of small amount and crosses the heat of volume.By making room 33 be filled with optical medium 56, the method permit light to be transmitted into lamp internal volume, need not to cause in described volume and/or through described volume and excessively not mate the loss caused by the refractive index of Air Interface.Optical medium 56 is optional is generally used for phosphor 30, LED 22 and/or in the material of any encapsulation materials around LED 22 or mate the material (such as silicone) of refractive index of described material from substantially to belong to.The title of filing an application on June 8th, 2012 is the 61/657th of " having the solid state lamp (Solid-State Lamps WithImproved Emission Efficiency And Photoluminescence Wavelength Conversion ComponentsTherefor) through improving emission effciency and the photoluminescence wavelength transition components for it " the, describe the further details about the exemplary method implementing optical medium in No. 702 U.S. Provisional Application cases, the mode that described U.S. Provisional Application case quotes in full with it is hereby incorporated to.
Fig. 9,10,11 and 12 provides the diagram of the assembly of wire el lamp 21 according to a particular embodiment of the invention.Fig. 9 is the end-view of wire el lamp 21 and Figure 12 is the exploded end view of wire el lamp 21.Figure 10 is the decomposition diagram of lamp 21, and it is exaggerated in fig. 11 further.Wire el lamp 21 comprises the elongate lenticular 26 of the room 33 integrally formed of the length with continuity lens 26.Room 33 is through formalizing to provide wanted Light distribation pattern.In this instant example of wire el lamp 21, chamber 33 is shown as has domed tendency.Phosphor layer 30 is positioned in room 33.
Wire LED 22 array is positioned on circuit board 25.Any appropriate methodology can be taked to implement LED 22 array.For example, chip on board (COB) can be used to configure and to implement LED array.Providing package is containing the reflecting material 52 (such as, the zone of reflections or paper) for the aperture of LED 22.Circuit board 25 is installed on radiator 54.The sub-assembly comprising radiator 54, circuit board 25 and reflecting material 52 uses a pair end plate 29 of the recessed end portion of lens 26 to be set in and is attached to lens 26.End plate 29 comprises one group four screws (not showing in Fig. 9).Two, top screw is the opening for being inserted into by screw rod in lens 26.Two, bottom screw is the opening for being inserted into by screw rod in radiator 54.
In the embodiment that wire el lamp 21 is intended for the direct refill-unit of standard fluorescent lamp (such as t5, T8 or T12 fluorescent tube) wherein, providing package is containing the end cap (displaying) in order to be assembled to the suitable connector (the two pin connectors of such as G5 or G13) in standard fluorescent lamp fixture.External reflector (displaying) also can use to be directed in wanted direction by the output light from lamp 21 together with lamp 21.To optionally adjust the orientation direction of lamp 21.For example, lamp usually will through guiding along in downward direction (such as wherein lens 26 face down below reflector) when being attached in ceiling fixture.
The base section of lens 26 is configurable irradiation patterns being adjusted lamp 21 with (such as) by adjustment as the radial angle of coverage of the lens 26 measured from the central shaft of lamp.If the extension in apart from complete 360 degree of central shaft of the profile of lens, so this will cause light fixture to have 360 degree of irradiations, such as, as in the lamp of Fig. 6 show.Also the angle of the base section of adjustable lens is to adjust the irradiation pattern of lamp.Figure 14 A illustrates the end-view of embodiments of the invention, wherein the base section of lens 26 is configured and lens 26 is provided have to become semi-circular profile less times greater than the radial angle of 180 degree relative to the central shaft of lamp 21, such as, wherein part 50 tilts to improve the propagation of light of being launched by lamp along outward direction.Alternate embodiment can be configured and make the base section of lens 26 be tilt along inward direction.Figure 14 B illustrates the end-view of embodiments of the invention, wherein the base section of lens 26 is configured semi-circular profile lens 26 being provided have to become to be slightly less than relative to the central shaft of lamp 21 radial angle of 180 degree, such as, wherein part 50 tilts to improve light the concentrating along preferential direction of being launched by lamp along inward direction.
Be associated with LED light device the problem solved by embodiments of the invention is the non-white color appearance of the device being in off state.During on-state, LED chip or nude film produce blue light and after this some parts of blue light is absorbed again to launch sodium yellow (or combination of green light and red light, green light and sodium yellow, green light and orange-colored light or sodium yellow and red light) by phosphor.The part do not absorbed by described phosphor of the blue light produced by LED and the light by described phosphor emission are combined and is provided in human eye and it seems connect subalbous light on color.But in off state, LED chip or nude film do not produce any blue light.But, the light produced by remote phosphor illumination equipment at least in part based on exterior light (such as daylight or room light), the phosphor material in described exterior light excitation wavelength transition components and therefore produce faint yellow, yellowish orange or orange hues in luminescence generated by light light.Because LED chip or nude film do not produce any blue light, therefore this means not exist in order to combine the producing any remaining blue light presenting white light with the yellow/orange light of the luminescence generated by light light from wavelength conversion component (such as phosphor 30).Therefore, described lighting device will look like faint yellow, yellowish orange or orange on color.This can be the potential buyer that seeks to present white light or consumer unacceptable.
According to the embodiment of Figure 15, optical diffusion layer 31 provide by improve be in off state device for the visual appearance of observer the benefit of head it off.To a certain extent, this is because optical diffusion layer 31 comprises the particle of optical diffraction material, and described particle can reduce in fact will cause wavelength conversion component again to launch passing through of the external excitation light of the light of the wavelength with yellowish/orange hues originally.For example, the particle of the optical diffraction material in optical diffusion layer 31, through selecting the magnitude range to have the probability increasing its scattering blue light, this means less outside blue light by described optical diffusion layer to excite described wavelength conversion layer.Therefore, remote phosphor illumination equipment will have white appearance more in off state, because wavelength conversion component launches less yellow/red light.
Optical diffraction particle size can through select with make described particle by the blue light of scattering than it by relatively many for the light produced by phosphor material of scattering (such as reaching at least twice).This optical diffusion layer is guaranteed: during off state, the outside blue light of the higher proportion received by device by optical diffraction material scattering and will guide away from wavelength conversion layer, thus reduce the probability of photon and the phosphor material particle interaction of initiating outside and make the generation of yellowish/orange-colored light photoluminescence light minimized.But during on-state, the light that the phosphor caused by the exciting light from LED light source produces still can pass through diffusing layer with the lower probability be scattered.Preferably, for strengthening the white appearance being in the lighting device of off state, the optical diffraction material in optical diffusion layer is " nano particle " with the average particle size being less than about 150nm.For launching the light source with the light of other color, described nano particle may correspond in other mean size.For example, for UV light source, the optical diffraction material in optical diffusion layer can have the average particle size being less than about 100nm.
Therefore, by the average particle size of suitable selective light scattering material, configuration optical diffusion layer makes its easier scattering exciting light (such as blue light) compared with other color (namely as the green of being launched by embedded photoluminescent material and redness) be possible.For example, there is the TiO of the average particle size of 100nm to 150nm 2the blue light (450nm to 480nm) of KPT Scatter may be that it is by more than the green light (510nm to 550nm) of scattering or the twice of red light (630nm to 740nm).As another example, there is the TiO of the average particle size of 100nm 2particle by the blue light of scattering than it by the green light of scattering or red light many nearly three times (2.9=0.97/0.33).For the TiO of average particle size with 200nm 2particle, these TiO 2the blue light of scattering is that it is by more than the green light of scattering or the twice of red light (2.3=1.6/0.7) by particle.According to some embodiments of the present invention, optical diffraction particle size is preferably through selecting to make described particle to be the relatively at least twice of the light produced by phosphor material by the blue light of scattering.
Another problem about remote phosphorescence body device that can be solved by embodiments of the invention is the light emitted color change along with emission angle.The so-called COA of this problem (color changes with angle).Remote phosphor allows the blue light of specified quantitative to send as the blue component of white light.This is the directionality light from LED.From (lambertian) of RGY (red green yellow) only lambert's type of phosphor.Therefore the directionality of blue light can be different from the directionality causing the RGY light of " halation " effect in edge, and wherein color seems " colder " along the direction of blue LED light and seems " warmer " in the edge that light is whole RGY.The interpolation of nanometer diffusing globe makes blue light optionally diffusion, thus causes to make it have the lambert pattern identical with RGY light and form pole homogeneous color and change with angle.Tradition LED also has this problem by using the remote phosphors of this technology to improve.When watching from different perspectives, remote phosphorescence body device usually has perceptible inhomogeneities on color.Embodiments of the invention correct this problem, this is because the interpolation of the optical diffusion layer directly contacted with wavelength conversion layer significantly increases the light emitted color uniformity along with emission angle θ.
Embodiments of the invention can be used for reducing the phosphor material amount manufactured needed for LED illumination product, consider the relatively costly essence of phosphor material whereby and reduce the cost manufacturing this little product.In particular, the interpolation of the optical diffusion layer be made up of the particle of optical diffraction material can reduce in fact the light emitted required phosphor material amount producing selected color.This means, and compared with suitable art methods, needs relatively less phosphor to manufacture wavelength conversion component.Therefore, manufacture adopt the lighting apparatus (especially for remote phosphor illumination device) of this little wavelength conversion component by cheapness many.In operation, diffusing layer will cause the probability of the generation of luminescence generated by light light by making light back reflex in wavelength conversion layer to increase photon.Therefore, diffusing layer and comprising of wavelength conversion layer the phosphor material amount produced needed for given color emission product can be reduced (such as) maximum 40%.
Figure 15,16 and 17 illustrates the distinct methods be incorporated into by light-scattering material in LED, and described method can reduce in fact the light emitted required phosphor material amount producing selected color.In addition, optical diffusion layer can be used together to reduce the light emitted required phosphor material amount producing selected color further in conjunction with extra scattering (or the reflection/diffraction) particle in wavelength conversion component.Figure 15 illustrates the method be wherein contained in by light-scattering material 31 in individual course.Figure 16 illustrates the method in the layer that is wherein contained in by light-scattering material 31 containing phosphor 30.Figure 17 illustrates and wherein light-scattering material 31 is incorporated into the alternative in lens 26.Also can implement any combination of above method.For example, light-scattering material 31 can be incorporated in both phosphor layer 30 and lens 26.In addition, light-scattering material can be contained in both individual course 31 and phosphor layer 30.In addition, light-scattering material 31 can be contained in each in described individual course, phosphor layer 30 and lens 26.
Alternative can be taked to improve the off state white appearance of lamp.For example, can (such as) in the outer surface of lens 26, texture be incorporated in the outer surface of lamp to improve the off state white appearance of lamp.
Another possibility method is, directly after yellow phosphor layer, implements thin white layer before clear wire optics thoroughly.This three-decker will be white appearance in off state, but primary optics will be saturating clearly (non-diffuse/ambiguous).The method has the benefit keeping the Light distribation pattern of wire lens optics simultaneously still to provide white appearance.
The title of filing an application on October 13rd, 2011 is the 11/185th of " wavelength conversion component (WavelengthConversion Component With Scattering Particles) with scattering particles " the, describe the further details about the exemplary method implementing scattering particles in No. 550 U.S. patent application case, the mode that described U.S. patent application case quotes in full with it is hereby incorporated to.
Inner chamber is used also to can be applicable to non-linear shape lamp as the method for " mixing chamber ".Figure 18 shows that LED illumination arranges 20 according to an embodiment of the invention, and wherein lens 26 comprise solid hemi-spherical shape.LED chip 22 is installed in the room 33 of lighting arrangements 20, makes in its inside being housed in the profile of phosphor 30 completely.Recess 23 is formed in lens 26 to receive PCB 25.
Lens 26 can be made to provide any applicable shape on demand.For example, Figure 20 shows that substituting LED illumination according to an embodiment of the invention arranges, wherein lens 26 comprise solid oval shape.As above, LED chip 22 is installed in the room 33 of described lighting arrangements, makes in its inside being housed in the profile of phosphor 30 completely.Recess 23 is formed in lens 26 to receive PCB 25.
Any one in embodiment comparatively early can be configured to a wire el lamp.For example, the embodiment of Fig. 2 shows to have through providing to focus on from the described lamp arranging the convex lens 26 of the light exported, and wherein the form of lens 26 is hemispheric in fact.Lens 26 have smooth (flat in fact) surface 28 providing phosphor layer 30 before lens are installed to shell 24 thereon.Figure 20 illustrates the wire el lamp with similar structures with cross-sectional profiles.It is semicircular elongate lenticular 26 that described wire el lamp comprises its shape of cross section, and wherein the substrate of lens 26 has the flat surfaces 28 providing elongated phosphor layer 30 thereon.LED 22 is installed to stayed surface, and wherein said stayed surface is outside at lens 26.
Similarly, the previous described embodiment of Fig. 3 relates to LED illumination and arranges, wherein phosphor 30 is provided as the layer on the spirogyrate surface 32 of lens 26.In this embodiment, the form of lens 26 is domed shape.Figure 21 illustrates the wire el lamp with similar structures with cross-sectional profiles.It is semicircular elongate lenticular 26 that described wire el lamp comprises its profile, and wherein phosphor 30 is provided as the layer on the outer surface of lens 26.
The previous described embodiment of Fig. 4 relates to LED illumination and arranges, wherein lens 26 comprise hemispherical shell in fact and on phosphor 30 inner surface that is provided in lens 26 or outer surface.Figure 22 illustrates the wire el lamp with similar structures with cross-sectional profiles, wherein said wire el lamp comprises the elongate lenticular 26 with semicircular shell profile, and wherein phosphor 30 is provided as the layer on the inner surface of lens 26 or outer surface.
Figure 23 illustrates the exemplary configuration of the profile of the lamp according to some embodiments of the present invention.The layout of this figure is illustrated in the phosphor portion 30 with taper shape (or candle) cross sectional shape in room 33.When being embodied as T8 and replacing lamp, overall diameter d=25.54mm (1 inch), l=20.70mm, h=9.62mm, and w=8mm.The length L of the outer surface of lens 26 1exceed the length L on the surface of phosphor portion 30 2.In certain embodiments, L 2l 1at least twice.The surface area of phosphor material is 10.5in 2/ ft.
Figure 24 is the graphic of the emission types showing the light distributed by an example implementations of the lamp of Figure 23.Dash lines show does not comprise the emission types of the example lamp of lens 26.Solid line illustrated comprises the emission types of the example lamp of lens 26.Visible, described lens are used for making light emitted setting, make usually to spend towards 0 on chart (tip towards the coniform shape of phosphor portion 30) appearance more concentrated.
Figure 25 illustrates another exemplary configuration of the profile of the lamp according to some embodiments of the present invention.The layout of this figure is illustrated in the phosphor portion 33 with dome cross sectional shape substantially in room 33.When being embodied as T8 and replacing lamp, diameter d has 1 inch of (25.4mm) length and wherein l=20.70mm, and w=8mm, identical with the embodiment of Figure 23.But in this embodiment, the value of h is 6mm.As above, the length L of the outer surface of lens 26 1significantly beyond the length L on the surface of phosphor portion 30 2, such as, wherein L 2l 1at least twice.The surface area of phosphor material is 7.8in 2/ ft.
Figure 26 is the graphic of the emission types showing the light distributed by an example implementations of the lamp of Figure 25.Dash lines show does not comprise the emission types of the example lamp of lens 26.Solid line illustrated comprises the emission types of the example lamp of lens 26.As above, visible, described lens are used for making light emitted setting, make usually to spend towards 0 on chart (tip towards the domed shape of phosphor portion 30) appearance more concentrated.
Clear difference between the emission types of the emission types of the lamp of these figure shows Figure 23 and the lamp of Figure 25.The method of domed shape cross-sectional profiles is used to provide the more even pattern near field (at tube-surface place or near tube-surface) Light distribation and good far field beams to control.The conic section shape of Figure 23 provides the larger Light distribation of the side along lamp.By contrast, the domed shape cross section profile of Figure 25 provides towards the larger Light distribation at the top of lamp.This highlights the ability being made the light setting produced by lamp by the shape of the cross section profile of the phosphor/room in configuration lens.Use the method for domed shape cross-sectional profiles usually to correspond to the phosphor surface area less than conical by its shape cross section profile, this is converted into more cheap lamp design potentially.
The layout of described lamp also can be configured to improve its light generation efficiency and (also be called " system quantum efficiency " herein or SQE) and reduce SQE light loss, wherein system quantum efficiency may be defined as the total number of the photon produced by described system and the ratio of the number of the photon produced by LED.Many White LEDs and LED array are constructed by blue led usually, and the described blue led layer of silicone of the particle containing phosphor in powder state material is encapsulated or uses the optical module (optics) comprising described phosphor material to cover.The described system quantum efficiency (SQE) of known White LED and LED array does not affect by the loss of total light output of lamp during blue LED light is converted to white light, wherein most of light loss is not caused by luminescence generated by light conversion process, but due to be back transmitted into light in LED (luminescence generated by light and LED light both) absorption loss caused by.Because luminescence generated by light conversion process is isotropic, along all directions utilizing emitted light photoluminescence light and therefore therefore by by along the luminescence generated by light light back produced towards the direction of LED up to about 50%, thus cause by LED reuptaking and loss luminescence generated by light light.
By suitably configuring the aspect ratio of phosphor portion 30, may eliminate or significantly reduce the SQE loss of lamp.The aspect ratio of phosphor portion 30 is ratios of the area of phosphor layer and the area of LED.Figure 28 is the example of this assembly comprising the tool axial length l of the smooth end having hemispherical end and can be installed to LED and the cylinder-shaped body of radius r.On the cylindrical surface that phosphor is provided in described assembly and semispherical surface.In this exemplary embodiment, the area of LED (i.e. the flat base of assembly) is π r 2, and the surface area of wavelength conversion component (phosphor) is 2 π r 2+ 2 π rl.Therefore, aspect ratio is 2 (r+l)/r:1.For the assembly (namely its length is in axial direction the assembly of 1.5 times of its diameter) of wherein length l=0.5r, aspect ratio is preferably 3:1 (but can adopt other ratio in a particular embodiment).For this assembly, the solid optical device in room 33 by most of optical transport to the opposition side of phosphor optics and few light turns back to LED and package substrates.Travel across solid optical device and not there is refraction index changing, therefore there is in fact 100% efficiency.Therefore, target of this design is that the amount of light by making to turn back to LED minimizes and light launched maximize.
According to some embodiments of the present invention, significantly eliminate by implementing the combination of following factor or reduce SQE loss:
I) remote phosphors-phosphor portion is separated with LED;
The optical material of ii) Coupling optics-have high-index material is directly coupled to LED and phosphor converted assembly.This material should have the refractive index of 1.4 or larger (>1.5 is preferred).Good optical between blue led with clear transmissive optical device is coupled and is used for guaranteeing that it effectively serves as optical transport layer.Do not mated by elimination Air Interface and refractive index, the in fact all light produced by LED will be incited somebody to action almost losslessly or will be advanced to wavelength conversion component (phosphor layer) with minimal losses.
The phosphor wavelength Zhuan Huan Ceng – phosphor layer iii) with the aspect ratio being greater than 1:1 is separated with blue led by clear Coupling optics thoroughly.Ideally, outer phosphor optics be identical refractive index with clear layer and with the interface of clear transmissive optical device in not there is gap or other optical loss.The outer optics of phosphor has 1:1 or is greater than the aspect ratio of 1:1, makes the total surface area of outer phosphor layer contact with clear Coupling optics thoroughly be at least three times of the area on the LED surface of being coupled to saturating clearly Coupling optics.
In operation, blue light travels across saturating clearly Coupling optics and does not effectively have loss.When blue light excitation phosphor layer, and luminescence generated by light light equally can be advanced along any direction because of the elimination of optical medium/Air Interface now.Due to the high aspect ratio of photoluminescence wavelength transition components, therefore most of light (phosphor produce light and institute's scattering LED light both) back will not advance to LED.But most of light will travel across transmissive optical device clearly and leave from phosphor layer on the opposite sides to opposite side.Once through conversion, YGR (yellow, green, red) light is convenient to pass through phosphor layer.In a word, when it is standard LED configuration, most of light is no longer direct again to circulate between phosphor and encapsulation/LED.
About wire el lamp embodiment, any applicable manufacturing process can be adopted to manufacture lamp/subassembly.For example, wherein use serigraphy can be adopted ink to be directly printed onto the typography on lens surface.Other printing technology can be used print and/or associated with phosphor coating, such as, use roll coater to be coated on lens by phosphor ink.Spraying can be used for phosphor-coating to another technology on lens.
Also can perform lamination to manufacture wire el lamp.In this method, the independent phosphor material thin slice that (such as) has or do not have carrier layer clearly is thoroughly manufactured.Then, phosphor film sheet is laminated on optical lens/tubular construction.
Coextrusion process can be performed to manufacture multilayer wire lighting arrangements.Two extruders are for being fed in individual tool to form both materials of phosphor layer and lens.Formed in this method simultaneously and manufacture described two layers together.The method can use together with the various source materials (such as PC-Merlon, PMMA-poly-(methyl methacrylate) and PET-poly terephthalic acid second two fat) comprising major part or whole thermoforming plastic.This coextrusion process can use the particle the same as or similar to the particle for injecting forming material usually.If the room in lens comprises solid optical medium, so co-extrusion method can be used to manufacture three layers by three extruders.
As described above, groove can be incorporated in the profile of extrusion to hold PCB or COB array.The method of inner chamber is used to facilitate pole simple combination part because avoiding the loss from external mixing chamber and through improving efficiency.In certain embodiments, LED to be installed on inside wire mixing chamber and extrusion is attached to described wire mixing chamber.
Figure 29 illustrates the end-view of another lamp according to some embodiments of the present invention.The layout of this figure shows multilayer optical assembly, and wherein said multilayer optical assembly integrally comprises phosphor portion 30, lens 26 and reflector sections 50.As above, phosphor portion 30 comprises the cardinal principle dome cross sectional shape of surrounded chamber 33.Lens 26 also comprise the outer cross section profile with domed shape.Reflector 50 is by can any material of reverberation in fact be formed, and some light be intended by the light that the phosphor from phosphor portion 30 is produced or all light work away from the substrate reflects of lamp 21.In certain embodiments, reflector 50 comprises white polycarbonate material.
Three layers of expressing technique can be utilized to manufacture multilayer optical assembly, and wherein three extruders are for being fed in individual tool to form phosphor layer, the material of lens and the material of reflector.Three extruders to be used for being fed in individual tool to form three individual member bed of materials, comprise phosphor, the material of lens and the material of reflector.Formed in this method simultaneously and manufacture described three layers together.The method can use together with the various source materials (such as PC-Merlon, PMMA-poly-(methyl methacrylate) and PET-poly terephthalic acid second two fat) comprising major part or whole thermoforming plastic.These three layers of expressing techniques can use the particle the same as or similar to the particle for injecting forming material usually.If the room in lens comprises solid optical medium, so four layers of extrusion method can be used to manufacture multiple layer by four extruders.
In certain embodiments, the circuit board 25 with LED 22 array be installed to supportive body 54 and with its thermal communication.Reflector 50 is formed with the lower flange portion that the core away from multilayer optical assembly extends.Described flange portion is configured to fill in the passage in described supportive body 54.Lamp 21 is implemented in this permission in the following manner and easily: being installed on by supportive body 54 needs wire el lamp Anywhere, and then by multilayer optical assembly being attached to described supportive body in the suitable passage that makes flange portion slide in supportive body 54.
In alternative embodiments, not by first LED 22 being installed to the circuit board 25 that is attached to supportive body 54 and manufacturing lamp.But, utilize the coextrusion process manufacturing and there is the multilayer optical assembly of LED 22 array.In this embodiment, LED 22 is attached to the flexible PCB 25 be fed in co-extrusion equipment, makes described multilayer optical assembly attach to the circuit board with LED when it is formed.
Figure 30 illustrates the embodiment that wherein room is filled with optical medium 56.Optical medium in room 33 comprises the material (such as, solid material) of the refractive index of the refractive index having the encapsulation materials 27 mating phosphor 30, LED 22 more nearly and/or can be present in any type on the top of LED 22.As discussed previously, a kind of reason using optical medium 56 is to eliminate the Air Interface be present between LED 22 and phosphor 30.This reduces and/or to eliminate between the refractive index of material of phosphor 30 and the refractive index of the air in the internal volume 33 of lamp 21 any does not mate.Do not mated by these reducing/prevent refractive index, this removes and the signal portion of light can be caused with the interface between the air of the form loss of heat production and lamp assembly.By making room 33 be filled with optical medium 56, permitting light to be transmitted into the internal volume of lamp, need not cause in described volume and/or through described volume and excessively not mate the loss caused by the refractive index of Air Interface.Described optical medium is optional is generally used for phosphor 30, LED 22 and/or in the material of any encapsulation materials around LED22 or mate any applicable material (such as, silicone) of refractive index of described material from substantially to belong to.
If the room in lens 33 comprises solid optical medium 56, co-extrusion method so can be used also to comprise optical medium 56 with (such as) by adding the extruder of the material being used for optical medium 56 to manufacture multilayer optical assembly.If optical medium 56 comprises fluent material, so described fluent material can be injected or be inserted in room 33 after multilayer optical assembly has been installed on supportive body 54.If needed, so can use curing process (such as, using UV light) that the fluent material of optical medium 56 is solidified further.
Light diffusion/scattering material can use together with described multilayer optical assembly.Described light diffusion/scattering material is useful for reducing the light emitted required phosphor material amount producing selected color.Described light diffusion/scattering material is also useful for the off state white appearance of improvement lamp 21.
Described light diffusion/scattering material can cover in any one in some layers of multilayer optical device.For example, in the layer that described light diffusion/scattering material can be incorporated into containing phosphor 30, add lens 26 to, be included as complete individual course or any combination.Figure 31 shows that wherein light diffusion/scattering material 31 has been incorporated into the embodiment in the material of the lens 26 in multilayer optical assembly.
In any one in disclosed embodiment, solid optical medium 56 can be replaced by material layer with the combination of phosphor 30, and the complete ring type filling of described material layer around the volume of LED 22, but also comprises the phosphor integrally in described material layer.The method is illustrated in Figure 32.Herein, lamp 21 does not have thin independent phosphor layer.But the whole of internal volume around LED 22 are filled with the material also comprising phosphor 30.This provides hybrid remote phosphor/not remote phosphor method, phosphor is arranged in the material layer of filling inner chamber thus, but some phosphors are arranged near being bordering on LED 22 place (being adjacent to the material part of LED), but most of phosphor is apart from LED 22 (in the outer part of the material away from LED) in fact quite far away.
Therefore, many advantages that the method provides remote phosphors to design, also make light conversion efficiency maximize (caused owing to eliminating not mating of refractive index because eliminating Air Interface) simultaneously.Manufacture also can be more cheap and easier because expressing technique and equipment only need to extrude single material layer, but not an extruder be used for phosphor material and an independent extruder for optical medium material.
Figure 33 shows that wherein reflector 50 comprises another embodiment of High lateral wall.To be transmitted into wanted direction from lamp 21 only useful for focusing on for described sidewall.But, the described sidewall of reflector 50 can from lamp 21 produce want any mode needed for light emission types to be configured.
Figure 34 illustrates the embodiment of lamp 100, and wherein one or more wire lighting arrangements 21 is positioned over the inner side of envelope 62 to form the refill-unit of standard incandescent bulb.Similarly, lamp 100 can comprise the modular electrical connector 60 (such as, standard Edison-type connector) allowing lamp 100 to use in conventional illuminator.
Wire lighting arrangements 21 is used as the illumination component in lamp 100.Wire lighting arrangements 21 is vertical orientations, axially extends, have the end cap 29 at end (such as, the far-end) place being positioned over wire lighting arrangements 21 in lamp 100.In inside, the LED in wire lighting arrangements 21 is the central shaft radial directed from lamp 100.There is provided the good total emission pattern from lamp 100 in this emission angle being configured in wide region, wherein the definite size (such as, length, width) of wire lighting arrangements 21 is through selecting will launch profile to provide.
Envelope 62 can be configured in any applicable shape.In certain embodiments, envelope 62 comprises standard lamp shape.This permits lamp 100 and uses in any application/position originally can implemented by standard incandescent bulb.Envelope 62 can comprise diffusing globe or use together with diffusing globe.In certain embodiments, scattering particles is provided in envelope 62 place as layers of additional materials or be directly incorporated in the material of envelope 62.
Any number wire lighting arrangements 21 can be contained in lamp 100.Two wire lighting arrangements 21 are shown in the embodiment of Figure 34.Figure 35 illustrates wherein three wire lighting arrangements 21 and is arranged in embodiment in lamp 100.Exact number to be placed to the wire lighting arrangements 21 in lamp 100 wants Performance Characteristics through selection to realize.In the 29/443rd in the application that coexist that the title of filing an application on January 16th, 2013 is " LED bulb (LED Light Bulbs) ", disclose the example of other LED bulb using wire lighting arrangements to implement in No. 392 U.S. patent application case, the mode that described U.S. patent application case quotes in full with it is hereby incorporated to.
Can adopt and use the line build-in test of any one in above method to control the change that finally manufactures a product and to make described change minimize.On October 13rd, 2011 file an application the 13/273rd, the method for No. 201 U. S. application cases describes for implementing on-line plan to make the minimized method of discernable change of the amount of the embedded photoluminescent material be deposited in wavelength conversion component.This method described in application case coexisted in application can use together with embodiments of the invention, and the mode hereby quoted in full with it is incorporated to.
By co-extrusion system, a kind of possibility method in order to perform line build-in test is mounted in colorimeter or the spectrometer of Active measuring product color when product is extruded.This survey tool will be installed online usually after cooling bath and drier but before being cut.Color measurements provides the Real-time Feedback to extrusion system, and described extrusion system changes and adjustment layer thickness by making the relative pressure of two extrusion screw rods.Described phosphor layer is fabricated as thicker or thinner with the color of the tuning product in real time when extruding.This allows to have the monochromatic system degree of accuracy simultaneously can implementation quality inspection in real time during expressing technique.Class liny build-in test can use together with printing and painting method.
To understand, the present invention by following item and feature described herein combination and define.
According to item 1, provide a kind of lamp, it comprises: co-extrusion assembly, and described co-extrusion assembly comprises elongate lenticular and embedded photoluminescent material layer, wherein said elongate lenticular and described embedded photoluminescent material layer together through co-extrusion to form described co-extrusion assembly; Described elongate lenticular, it is for making the light setting of launching from described lamp, and wherein said elongate lenticular comprises elongated interior chamber; The described layer of embedded photoluminescent material, it is in the interior wall in described elongated interior chamber; And solid state light emitter array, it is configured to be transmitted into by light in described elongated interior chamber.
Item 2, the lamp according to item 1, wherein said lens correspond to curved outer wall.
Item 3, the lamp according to item 2, wherein said curved outer wall comprises semi-circular cross-section profile substantially.
Item 4, the lamp according to arbitrary aforementioned item, the described interior wall in wherein said elongated interior chamber corresponds to general curved interior wall.
Item 5, the lamp according to arbitrary aforementioned item, the described layer of wherein said embedded photoluminescent material comprises conical cross-sectional profile substantially.
Item 6, the lamp according to arbitrary aforementioned item, the described layer of wherein said embedded photoluminescent material comprises semicircle or domed shape cross-sectional profiles substantially.
Item 7, the lamp according to arbitrary aforementioned item, wherein said lens comprise the groove in order to assembling with the circuit board of wire solid state light emitter array.
Item 8, the lamp according to arbitrary aforementioned item, it comprises diffuse material further.
Item 9, the lamp according to arbitrary aforementioned item, wherein said diffuse material is included in the outer layer material on described lens.
10, the lamp according to any one of item 8 or 9, wherein said diffuse material is in the described layer of described lens or described embedded photoluminescent material.
Item 11, the lamp according to arbitrary aforementioned item, it comprises reflector further, and described reflector comprises the reflecting surface reflecting through the light that described lens are launched.
12, the lamp according to item 11, wherein said reflector together with described elongate lenticular and described embedded photoluminescent material layer by co-extrusion.
Item 13, the lamp according to any one of item 11 or 12, the described layer of wherein said reflector, described elongate lenticular and embedded photoluminescent material is integrally formed as multilayer optical assembly.
Item 14, the lamp according to arbitrary aforementioned item, it comprises the end cap of the end attaching to described lens further.
Item 15, the lamp according to arbitrary aforementioned item, it is included in the optical medium in described chamber further.
16, the lamp according to item 15, wherein said optical medium together with described elongate lenticular and described embedded photoluminescent material layer by co-extrusion.
Item 17, the lamp according to arbitrary aforementioned item, wherein formalizes from the described light that described lamp is launched by being focused.
According to item 18, a kind of method making optical module, it comprises the elongated solid main body that co-extrusion has wavelength conversion layer and optical module layer, and described wavelength conversion layer contacts with described optical module layer.
Item 19, the method according to item 18, wherein adopts multiple independent extruder to extrude the material of described wavelength conversion layer and described optical module layer.
Item 20, method according to any one of item 18 or 19, the described material wherein operated on it by described extruder comprises at least one in PC-Merlon, PMMA-poly-(methyl methacrylate), PET-poly terephthalic acid second two fat and thermoforming plastic.
Item 21, the method according to any one of item 18 to 20, and it comprises co-extrusion light diffusion part further.
Item 22, the method according to any one of item 18 to 21, is wherein formed as curved shape by described optical module layer.
Item 23, the method according to any one of item 18 to 22, wherein said optical module layer is lens.
Item 24, the method according to any one of item 18 to 23, it comprises execution on-line plan further to control the deposition for the material of described wavelength conversion layer.
Item 25, the method according to item 24, wherein performs color measurements for described on-line plan.
To understand, and the invention is not restricted to described specific embodiment and some amendments within the scope of the invention can be made.For example, although mention lens in aforementioned explanation, phosphor can deposit on other optical module, for example, such as window (light through described window, but may not line focus or guiding) or guiding, guides the waveguide of light.In addition, optical module can have many forms that those skilled in the art will easily understand.

Claims (25)

1. a lamp, it comprises:
Co-extrusion assembly, described co-extrusion assembly comprises elongate lenticular and embedded photoluminescent material layer, wherein said elongate lenticular and described embedded photoluminescent material layer together through co-extrusion to form described co-extrusion assembly;
Described elongate lenticular, it is for making the light setting of launching from described lamp, and wherein said elongate lenticular comprises elongated interior chamber;
Described embedded photoluminescent material layer, it is in the interior wall in described elongated interior chamber; And
Solid state light emitter array, it is configured to be transmitted into by light in described elongated interior chamber.
2. lamp according to claim 1, wherein said lens correspond to curved outer wall.
3. lamp according to claim 2, wherein said curved outer wall comprises semi-circular cross-section profile substantially.
4. lamp according to claim 1, the described interior wall in wherein said elongated interior chamber corresponds to general curved interior wall.
5. lamp according to claim 4, the described layer of wherein said embedded photoluminescent material comprises conical cross-sectional profile substantially.
6. lamp according to claim 4, the described layer of wherein said embedded photoluminescent material comprises semicircle or domed shape cross-sectional profiles substantially.
7. lamp according to claim 1, wherein said lens comprise the groove in order to assembling with the circuit board of wire solid state light emitter array.
8. lamp according to claim 1, it comprises diffuse material further.
9. lamp according to claim 8, wherein said diffuse material is included in the outer layer material on described lens.
10. lamp according to claim 8, wherein said diffuse material is in the described layer of described lens or described embedded photoluminescent material.
11. lamps according to claim 1, it comprises reflector further, and described reflector comprises the reflecting surface reflecting through the light that described lens are launched.
12. lamps according to claim 11, wherein said reflector together with described elongate lenticular and described embedded photoluminescent material layer by co-extrusion.
13. lamps according to claim 11, wherein said reflector, described elongate lenticular and described embedded photoluminescent material layer are integrally formed as multilayer optical assembly.
14. lamps according to claim 1, it comprises the end cap of the end attaching to described lens further.
15. lamps according to claim 1, it is included in the optical medium in described chamber further.
16. lamps according to claim 15, wherein said optical medium together with described elongate lenticular and described embedded photoluminescent material layer by co-extrusion.
17. lamps according to claim 1, wherein formalize from the described light that described lamp is launched by focusing on.
18. 1 kinds of methods making optical module, it comprises the elongated solid main body that co-extrusion has wavelength conversion layer and optical module layer, and described wavelength conversion layer contacts with described optical module layer.
19. methods according to claim 18, wherein adopt multiple independent extruder to extrude the material of described wavelength conversion layer and described optical module layer.
20. methods according to claim 19, the described material wherein operated on it by described extruder comprises at least one in PC-Merlon, PMMA-poly-(methyl methacrylate), PET-poly terephthalic acid second two fat and thermoforming plastic.
21. methods according to claim 18, it comprises co-extrusion light diffusion part further.
22. methods according to claim 18, are wherein formed as curved shape by described optical module layer.
23. methods according to claim 18, wherein said optical module layer is lens.
24. methods according to claim 18, it comprises execution on-line plan further to control the deposition for the material of described wavelength conversion layer.
25. methods according to claim 24, wherein perform color measurements for described on-line plan.
CN201380032879.1A 2012-06-28 2013-06-27 Linear led lighting arrangement including light emitting phosphor Pending CN104412029A (en)

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Application publication date: 20150311