CN100539214C - Lighting device, the manufacture method of automotive headlight and lighting device - Google Patents
Lighting device, the manufacture method of automotive headlight and lighting device Download PDFInfo
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- CN100539214C CN100539214C CNB2005800452722A CN200580045272A CN100539214C CN 100539214 C CN100539214 C CN 100539214C CN B2005800452722 A CNB2005800452722 A CN B2005800452722A CN 200580045272 A CN200580045272 A CN 200580045272A CN 100539214 C CN100539214 C CN 100539214C
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Abstract
A kind of lighting device with at least one light-emitting diode (20) and at least one optical element (30) is provided, and wherein light-emitting diode (20) and optical element (30) are by means of at least one fitting pin (31,32) mutual calibration.The manufacture method of this lighting device is provided in addition.Described lighting device especially is fit to be applied on a kind of automotive headlight.
Description
The present invention relates to a kind of lighting device.The invention still further relates to the manufacture method of lighting device in addition.In addition the invention still further relates to a kind of automotive headlight.
The technical problem to be solved in the present invention is, a kind of lighting device that especially can use is provided many-sidedly.The technical problem to be solved in the present invention is in addition, and the manufacture method of this lighting device is provided.The technical problem to be solved in the present invention is in addition, and a kind of automotive headlight that has this lighting device is provided.
This technical problem is by according to the described lighting device of claim 1, solved according to the described automotive headlight of claim 24 and according to the manufacture method of the described lighting device of claim 25.Preferred implementation of the present invention is the content of dependent claims.
A kind of lighting device is provided.
According at least a form of implementation of lighting device, described lighting device has at least one light-emitting diode.Described lighting device preferably has a plurality of light-emitting diodes.Can make described lighting device in addition except light-emitting diode, also comprise the assembly that other produces light, for example Halogen lamp LED or gaseous discharge lamp etc.
According at least a form of implementation of lighting device, described lighting device has an optical element in addition.Described optical element can be the optics of a kind of refraction or diffraction.But also can provide this optical element by speculum.In addition, optical element can be provided by the combination of described optics.
Preferably optical element is arranged on after at least one light-emitting diode, makes to have the light of a part at least, modulated in the mode of determining by optical element by the light-emitting diode emission.
According at least a form of implementation of lighting device, each light-emitting diode can uniquely corresponding to firm what a optical element.That is to say that optical element is mainly modulated the light by this light-emitting diode emission.
According at least a form of implementation of lighting device, a common optical element is set after a plurality of light-emitting diodes.That is to say the light that the optical element modulation is launched by a plurality of light-emitting diodes corresponding with optical element.What a common optical element just especially can be set after all light-emitting diodes of lighting device.
At least a form of implementation according to lighting device, with at least one light-emitting diode and an optical element by means of at least one fitting pin mutual calibration, that is to say that light-emitting diode and optical element position is relative to each other determined by means of a fitting pin.Preferably with light-emitting diode and optical element by means of a plurality of fitting pin mutual calibrations.
Light-emitting diode and optical element can be installed on the same support.Optical element can determine optical element and the interconnected fitting pin of support by means of at least one with respect to the position of light-emitting diode then.In addition can be by means of making the interconnected fitting pin of support and light-emitting diode calibrate the position of light-emitting diode with respect to optical element.In addition, not only light-emitting diode but also optical element can be connected with support by means of at least one fitting pin respectively.Calibrate light-emitting diode and optical element respectively with respect to the position of support and with this mutual calibration by means of this fitting pin then.
According at least a form of implementation of lighting device, a kind of lighting device with at least one light-emitting diode and at least one optical element is provided, wherein light-emitting diode and optical element are by means of at least one fitting pin mutual calibration.
In at least a form of implementation of lighting device, at least a portion of optical element constitutes by the fiberoptics device.That is to say that at least a portion of optical element comprises optical conductor.
Preferably at least one fiber that couples light to the fiberoptics device with light-emitting diode.If light-emitting diode comprises for example a plurality of light-emitting diodes section of jurisdiction, then preferably in the just fiber that couples light to the fiberoptics device with each light-emitting diodes section of jurisdiction.Can leave optics-afterwards, an additional optical element for example is set by this part again in the electromagnetic radiation of the part of fiberoptics device-produce by light-emitting diode.Should can for example constitute by additional optical element by a kind of refraction or diffraction optical device.
In at least a form of implementation of lighting device, fitting pin has two by the interconnected bottom surface of case surface.The bottom surface of described fitting pin is of similar shape and size.Described case surface preferably is configured to smooth and connects two bottom surfaces along straight line.Described case surface is vertical on two planes of extending by two bottom surfaces of fitting pin preferably.Described fitting pin for example has one of following shape: cylinder, cuboid.
According at least a form of implementation, at least one end of fitting pin embeds a dead slot.That is to say that described dead slot is suitable for holding fitting pin.Preferred described dead slot have one with the identical shaped border, bottom surface, fitting pin end that embeds dead slot.If fitting pin for example is a cylindrical shape, dead slot is preferably made by the hole of a circle so.
Preferably the opening size with dead slot is designed to, and makes fitting pin embed dead slot with flushing.For example the fitting pin shape reasonably is coupled in the dead slot.Fitting pin for example just can insert dead slot.
But also can must be narrower a little than the bottom surface of the fitting pin end that embeds dead slot with the open design of dead slot.Fitting pin can be pressed into dead slot like this.Realized mechanical fixation simultaneously by means of this interference fit.That is to say that optical element can mechanically be connected with support by means of fitting pin.
According at least a form of implementation of lighting device, described fitting pin is an independent part.Two ends of preferred described fitting pin embed a dead slot respectively.Dead slot of design on optical element for this reason for example, and with support that optical element is connected on design the another one dead slot.
According at least a form of implementation, described fitting pin is the integrated component of optical element, that is to say, described fitting pin is connected with optical element regularly an end.For example can when making optical element, just fitting pin together be made as the part of optical element.For example can be with the fitting pin moulding, die casting adheres on the optical element or with optical element and integrally makes up.
In this case, preferably be connected and for example support of light-emitting diode is installed, have a dead slot that is suitable for holding fitting pin with optical element.
According at least a form of implementation, also can make described fitting pin become support integrated component.Wherein fitting pin just together can be made as the part of support when making support.For example can be with the fitting pin moulding, die casting adheres on the support or integrally makes up as the part of support.The preferred like this optical element that makes has a dead slot that is suitable for holding fitting pin.
According at least a form of implementation, light-emitting diode is placed on the support.Can be at this with light-emitting diode and support by means of at least one fitting pin mutual calibration.If a plurality of light-emitting diodes are placed on the support, then light-emitting diode can be by means of the fitting pin calibration with the relative position of support and also with this mutual calibration.
According at least a form of implementation of lighting device, described fitting pin is the integrated component of light-emitting diode.Described fitting pin can just together be made as the part of light-emitting diode when making light-emitting diode.For example can be with the fitting pin moulding, die casting adheres on the light-emitting diode or is integrally made up as the part of light-emitting diode.The preferred like this support that makes has a dead slot that is suitable for holding the light-emitting diode fitting pin.
According at least a form of implementation, described fitting pin is the integrated component of support.In this case, the fitting pin part that also can be used as support is together made.For example can be with the fitting pin moulding, die casting adheres on the support or is integrally made up as the part of support.Make light-emitting diode have a dead slot that is suitable for the fitting pin of containment bracket like this.
In addition, according at least a form of implementation of lighting device, can make support and light-emitting diode have at least one respectively and be suitable for holding the dead slot of fitting pin separately.Thus support and light-emitting diode by means of this fitting pin by mutual calibration.
According at least a form of implementation of lighting device, light-emitting diode and support are by means of at least one mating mark mutual calibration.Described mating mark for example is a mark at LED surface.Preferably make support also have at least one mating mark.Support and light-emitting diode just can be for example by means of the relative to each other calibration of a kind of optical image recognition method by mating mark being positioned on light-emitting diode and the support.
According at least a form of implementation of lighting device, light-emitting diode has at least one light-emitting diodes section of jurisdiction.A light emitting diode (LED) light device preferably is set after the light-emitting diodes section of jurisdiction.Especially preferably make light-emitting diode have a plurality of light-emitting diodes section of jurisdiction, a common light emitting diode (LED) light device is set after these light-emitting diodes sections of jurisdiction.Described light emitting diode (LED) light device preferably like this with respect to light-emitting diodes section of jurisdiction location, is made and modulated by the light emitting diode (LED) light device by the major part of the electromagnetic radiation of light-emitting diodes section of jurisdiction emission.The light emitting diode (LED) light device preferably comprises at least one following optical element: diffractive optical devices, diffraction optical device, reflective optical device, fiberoptics device.
According at least a form of implementation of lighting device, described light emitting diode (LED) light device is suitable for reducing the divergence of the light launched by the light-emitting diodes section of jurisdiction.That is to say, for example when penetrating the light emitting diode (LED) light device, be modulated into, make that to inject the light emitting diode (LED) light device littler in the past penetrating later divergence ratio from the light of light-emitting diodes section of jurisdiction emission.
According at least a form of implementation of lighting device, the optical focus device that described light emitting diode (LED) light device is a kind of not projection.Simultaneously the light emitting diode (LED) light device preferably is arranged on after the ray output coupling surface of at least one light-emitting diodes section of jurisdiction, makes that the ray shoots hand-hole of optical element is that the ray shoots of focalizer itself is portalled.That is to say that the light emitting diode (LED) light device is along the direction constriction of light-emitting diodes section of jurisdiction.In this way, be mapped to the electromagnetic radiation of light emitting diode (LED) light device, portal by ray shoots with the divergence that reduces and leave focalizer by the ray shoots hand-hole.
Described light emitting diode (LED) light device can be at least in part constitutes according to the form of following optical element:
The parabola focalizer (CPC-Compound Parabolic Concentrator) of combination, the oval focalizer (CEC-Compond ELlyptic Concentrator) of combination, the hyperbola focalizer of combination (CHC-Compound Hyperbolic Concentrator).
The light emitting diode (LED) light device can have and is suitable for reflecting the reflective side walls of at least a portion by the electromagnetic radiation of light-emitting diodes section of jurisdiction emission.Described sidewall is constituted according to the mode of any above-mentioned optical element subsequently at least in part.
At least a form of implementation according to lighting device, the optical focus utensil of described not projection has sidewall, described sidewall portals the ray shoots hand-hole of light-emitting diodes section of jurisdiction and ray shoots and couples together and be built into, and makes that the connecting line between being arranged on ray shoots hand-hole on the sidewall and ray shoots portals is in line basically.The sidewall configuration example is as the shape of a pyramid or the truncated cone.
The light emitting diode (LED) light device can be an integral body of being made up of dielectric material in this case.Be mapped to the electromagnetic radiation of light emitting diode (LED) light device by the ray shoots hand-hole, in the medium around preferably on this whole interface, side, being reflected to.
In at least a form of implementation of lighting device, corresponding what a the light emitting diode (LED) light device just in each light-emitting diodes section of jurisdiction.With the ray shoots hand-hole of optical element preferably after the main transmit direction of light-emitting diodes section of jurisdiction is arranged on the ray output coupling surface of light-emitting diodes section of jurisdiction.
But also can be with a plurality of light-emitting diodes section of jurisdiction corresponding to a common light emitting diode (LED) light device.Described light-emitting diodes section of jurisdiction can for example be settled along at least one straight line for this reason.With the ray shoots hand-hole of optical element after the main transmit direction of light-emitting diodes section of jurisdiction is arranged on whole of ray output coupling surface of single light-emitting diodes section of jurisdiction.
According at least a form of implementation, the ray shoots hand-hole of light emitting diode (LED) light device has the cross section that is twice at most corresponding to total ray output coupling surface of the light-emitting diodes section of jurisdiction of optical element.Total ray output coupling surface draws by the summation corresponding to the ray output coupling surface of each light-emitting diodes section of jurisdiction of light emitting diode (LED) light device.Preferably with maximum 1.5 times of the area of ray shoots hand-hole, especially preferred maximum 1.25 times to total ray output coupling surface corresponding to the light-emitting diodes section of jurisdiction of light emitting diode (LED) light device.
So little ray shoots hand-hole makes the ray that the Space Angle of launching electromagnetic radiation can be reduced into as close as possible light-emitting diodes section of jurisdiction export coupling surface.Wherein the cross section by the ray cone of light-emitting diodes section of jurisdiction emission is especially little.This can carry out Element Design with the Etendue that optimizes with regard to making.That is to say, high as far as possible transmitted intensity is projected on the as far as possible little area.Etendue is the acquisition amount of optics.It draws by the product of the Space Angle of light source area and light emitted ray.
In at least a form of implementation of lighting device, between the ray shoots hand-hole of the ray of light-emitting diodes section of jurisdiction output coupling surface and light emitting diode (LED) light device, a gap is set, for example an air gap.Realize thus making the ray of dispersing especially not arrive the light emitting diode (LED) light device, but before injecting the led lens optics, penetrate from the side by the gap.Make that thus the divergence by the electromagnetic radiation of optical element emission is reduced further.
In addition, substitute with gap and can be designed to ray shoots hand-hole other absorption electromagnetic radiation ground or transmission electromagnetic radiation ground for example being arranged on the ray output coupling surface sidewall afterwards of light-emitting diodes section of jurisdiction at optical element.The height divergent portion of the electromagnetic radiation of light-emitting diode sheet emission is not projected on the optical element.
At least a form of implementation according to light-emitting diode is arranged is provided with an additional optics along main transmit direction after the ray shoots of optical element is portalled.This additional preferably a kind of refracted ray of optical element or the optics of diffracted ray rely on this optics can reduce to see through the divergence of the ray of this additional optics further.
Described light emitting diode (LED) light device preferably reduces at least along the divergence of direction in space by the radiation cone of ray shoots hand-hole formation, make radiation cone when portalling ejaculation by ray shoots, and has the boundary between the longitudinal central axis of optical element between 0 and 70 °, preferred boundary is between 0 and 20 °, the open-angle of preferred especially boundary between 0 and 10 °, the longitudinal central axis of optical element is perpendicular to the output coupling surface corresponding to the light-emitting diodes section of jurisdiction of light emitting diode (LED) light device.
In at least a form of implementation of lighting device, light-emitting diode has the luminescent conversion material after the ray output coupling surface that is arranged at least one light-emitting diodes section of jurisdiction.Described luminescent conversion material preferably is arranged on the ray of each light-emitting diodes section of jurisdiction of lighting device and exports after the coupling surface.
The luminescent conversion material preferably is suitable for changing the wavelength of the electromagnetic radiation that at least a portion launched by the light-emitting diodes section of jurisdiction.Preferably partially mixedly become white light by the ray of light-emitting diodes section of jurisdiction emission with wavelength is converted.
But also the electromagnetic radiation of light-emitting diodes section of jurisdiction emission can be come Wavelength-converting by the luminescent conversion material basically fully.For example the ray of the invisible light spectral limit that can in this way the light-emitting diodes section of jurisdiction be launched is converted to the ray of limit of visible spectrum.By two kinds of different luminescent substances in application examples such as the luminescent conversion material, just can mix producing for example white light by light.The luminescent substance that is applicable to wavelength Conversion is for example described in document WO 98/12757, and its disclosure that relates to luminescent substance is incorporated herein by reference.
In at least a form of implementation of lighting device, described luminescent conversion material can mix the mould material of transmitted ray at least in part.Preferably make mould material at least in part around the light-emitting diodes section of jurisdiction.Described mould material can for example contain epoxy material and/or silicon materials.
But also described luminescent conversion material directly can be coated on the ray output coupling surface of single light-emitting diodes section of jurisdiction as thin layer.
Can make some place at least in the light emitting diode (LED) light device comprise described luminescent conversion material in addition.So, the luminescent conversion material just can for example be coated on the ray output coupling surface sidewall afterwards that is arranged on the light-emitting diodes section of jurisdiction as thin layer.Described luminescent conversion material can be evenly distributed on the sidewall.But also can be the ad-hoc location of luminescent conversion coated materials to the sidewall.Can make the electromagnetic radiation that penetrates through optical element realize specific conversion in this way.
According at least a form of implementation, also can make light-emitting diode comprise the light-emitting diodes section of jurisdiction of launching various wavelength ray.Preferably these rays are mixed into white light subsequently.For example light-emitting diode can comprise the light-emitting diodes section of jurisdiction that at least one is suitable for launching the light of red color spectrum range, and at least one is suitable for the light-emitting diodes section of jurisdiction that the light-emitting diodes section of jurisdiction of light of transmitting green spectral region and at least one are suitable for launching the light of blue spectral range.In order to improve the color table present worth, light-emitting diode is had be suitable for and launch the additional light-emitting diodes section of jurisdiction of the light of yellow spectrum scope of other spectral regions-for example.
In at least a form of implementation of lighting device, at least one light-emitting diodes section of jurisdiction of light-emitting diode has a ray output coupling surface, and nationality is output coupling by the major part of the electromagnetic radiation of this ray output coupling surface light-emitting diodes section of jurisdiction emission.Whole rays of light-emitting diodes section of jurisdiction emission are all penetrated by ray output coupling surface.
Described ray output coupling surface is for example formed by the part on surface, light-emitting diodes section of jurisdiction.Ray output coupling surface is formed by the interarea of epitaxial loayer sequence that is suitable for producing electromagnetic radiation that the light-emitting diodes section of jurisdiction for example is parallel to the light-emitting diodes section of jurisdiction.
Described for this reason epitaxial loayer sequence for example can have a pn knot, a kind of pair of diverse structure, a kind of single quantum or preferred especially a kind of multi-quantum pit structure.
The term quantum well structure in the application's category, also comprise every kind make charge carrier by airtight its energy state that stands by quantized structure.The term quantum well structure does not especially comprise the parameter of quantization size.Therefore it also comprise quantum bucket, the various combinations of quantum wire and quantum dot and these structures.
The preferably a kind of semiconductor light-emitting-diode sheet in light-emitting diodes section of jurisdiction, growth substrate is partly removed at least in this semiconductor light-emitting-diode sheet, and applies a kind of charge carrier element at it on the surface of original growth substrate.Compare with growth substrate and can freely select described charge carrier element relatively.Preferably select a kind of charge carrier element that aspect temperature expansion coefficient, mates especially with the epitaxial loayer sequence that produces ray.The charge carrier element can comprise a kind of material of special heat conduction in addition.
This by removing the light-emitting diodes section of jurisdiction that growth substrate produces, usually be known as thin-film led, and preferably have following feature:
-in the epitaxial loayer sequence that produces ray on first interarea of charge carrier, apply or form a kind of reflector or sequence of layer, make the electromagnetic radiation that in the extension sequence of layer, produces have at least a part to be reflected back toward this interarea.
-epitaxial loayer sequence preferably has the thickness of maximum 20 μ m, the thickness of preferred especially maximum 10 μ m.
-the epitaxial loayer sequence preferably comprises at least one and has the semiconductor layer that at least one has the face of abundant mixed structure in addition.In the ideal case, this abundant mixed structure causes light a kind of near ergodic distribution in the extension sequence of layer, that is to say that it has a kind of ergodic as far as possible, scattering properties at random.
Thin-film led basic principle is for example at people's such as document I.Schnitzer Appl.phys.Lett.63 (16), 18.oktober 1993, describe among the 2174-2176, its disclosure that relates to thin-film led basic principle is incorporated herein by reference.
All light-emitting diodes sections of jurisdiction of lighting device are preferably thin-film led.
A kind of automotive headlight with at least one above-mentioned lighting device is provided in addition.Described in addition automotive headlight can comprise the shell of settling at least one above-mentioned lighting device.Described shell can for example be the part of body of a motor car.Described in addition automotive headlight can comprise a transparent cover plate, perhaps the light collection optics after its main transmit direction is arranged on above-mentioned lighting device.
A kind of manufacture method of lighting device is provided in addition.
According at least a form of implementation of lighting device manufacture method, an optical element and a light-emitting diode are by means of at least one fitting pin mutual calibration.
By means of this method, can make optical element and light-emitting diode can mode given in advance relative to each other locating.
For example fitting pin is moved on to or is pressed onto for this reason in the dead slot that designs for fitting pin.For example therefore light-emitting diode is installed on the support.Optical element, support or optical element and support have a dead slot that is suitable for holding fitting pin.The integrated component of fitting pin or support, optical element, an or independent part simultaneously.By means of fitting pin optical element and support are relative to each other located, and therefore make optical element and rack-mount light-emitting diode mutual calibration.
According at least a form of implementation of lighting device manufacture method, light-emitting diode and support are by means of a fitting pin mutual calibration.Wherein can make fitting pin become the integrated component of these two parts again.Can make fitting pin become an independent part in addition, so light-emitting diode and support have the dead slot that is suitable for holding fitting pin.By means of this method, light-emitting diode and support can be can mode given in advance relative to each other locating.If the mutual calibration of light-emitting diode is carried out in a plurality of light-emitting diodes and a support mutual calibration so in addition by means of fitting pin.
In at least a form of implementation of lighting device manufacture method, light-emitting diode and support are by means of a kind of mating mark mutual calibration.Light-emitting diode and support have at least one mating mark respectively for this reason.The mating mark of two parts is for example relative to each other located by means of an optical imagery treatment system.Mating mark can be a label, for example a kind of lip-deep color label that is installed in light-emitting diode and support.But also can be used as mating mark to certain element of a part uses.So can for example mating mark be used as in certain light-emitting diodes section of jurisdiction of light-emitting diode.
According at least a form of implementation of lighting device manufacture method, only after light-emitting diode and support and optical element and light-emitting diode mutual calibration, just light-emitting diode is fixed on the support.Therefore light-emitting diode can be fixed on the support with a kind of UV cured glue that just hardens fully after the part mutual calibration finishes.
Below by means of embodiment and corresponding accompanying drawing lighting device described herein is described in more detail.
In embodiment and accompanying drawing, put on identical Reference numeral respectively for part identical or same function.Expressed element is not regarded as proportionally, can be represented large in order to understand each element better.
Fig. 1 represents the constructed profile according to the light-emitting diode of the band light emitting diode (LED) light device of light-emitting diode first embodiment.
Fig. 2 represents to be used to illustrate the signal sketch of the optical focus device action principle of a not projection.
Fig. 3 represents the constructed profile according to the light emitting diode (LED) light device of light-emitting diode second embodiment.
Fig. 4 A represents the see-through view according to the light-emitting diode of light-emitting diode the 3rd embodiment.
Fig. 4 B represents the perspective view with the 3rd embodiment of the light-emitting diode of light emitting diode (LED) light device.
Fig. 5 A represents the perspective side elevation view of lighting device first embodiment.
Fig. 5 B represents the perspective elevation of lighting device first embodiment.
Fig. 6 A represents the perspective side elevation view of lighting device second embodiment.
Fig. 6 B represents the perspective elevation of lighting device second embodiment.
Fig. 7 A represents the perspective side elevation view of lighting device the 3rd embodiment.
Fig. 7 B represents the perspective elevation of lighting device the 3rd embodiment.
Fig. 8 A represents the perspective side elevation view of lighting device the 4th embodiment.
Fig. 8 B represents the perspective elevation of lighting device the 4th embodiment.
Fig. 1 represents the constructed profile according to the light-emitting diode 20 of the band light emitting diode (LED) light device of light-emitting diode 20 first embodiment.
Light-emitting diodes section of jurisdiction 1 is installed on the support 2 at this.Support 2 can for example contain a kind of ceramic material.For example support 2 has the penetrating contact point that is used for contacting light-emitting diodes section of jurisdiction.In represented embodiment, support 2 is installed on the printed circuit board (PCB) 25.Printed circuit board (PCB) 25 for example has circuit and is used for the contact position of contacting light-emitting diodes section of jurisdiction 1.
Light-emitting diodes section of jurisdiction 1 for example is a kind of thin-film led that partly describes at the outline of this specification.
A light emitting diode (LED) light device 4 is set after light-emitting diodes section of jurisdiction 1, and this light emitting diode (LED) light device 4 for example can be the optical focus device of the not projection of three-dimensional CPC form.Light emitting diode (LED) light device 4 has a light and injects hole b, can pass this light by the electromagnetic radiation 3 of light-emitting diodes section of jurisdiction 1 emission and inject hole b.Electromagnetic radiation 3 is reflected on the sidewall of light emitting diode (LED) light device 4 at least in part, and described sidewall preferably has a kind of reflectance coating for this reason.Ray 3 portals by ray shoots subsequently and 5 leaves the light emitting diode (LED) light device.
The light of light emitting diode (LED) light device 4 is injected hole b the closer to the ray of light-emitting diodes section of jurisdiction 1 output coupling surface, and light is injected hole b and just can be designed more for a short time, and high more by the portal radiation density (Etendue) of electromagnetic radiations 3 of 5 ejaculations of ray shoots.Light emitting diode (LED) light device 4 and light-emitting diodes section of jurisdiction 1 constitute light-emitting diode 20 together.
As the substitute mode of embodiment represented in Fig. 1, a plurality of light-emitting diodes section of jurisdiction for example can be placed on the support 2 along straight line, and these light-emitting diodes sections of jurisdiction are corresponding to a common light emitting diode (LED) light device 4 (referring to Fig. 4 A and 4B).
Leaving ray shoots portals 5 the radiant cone 6 that Fig. 2 represents the ray that penetrates by light emitting diode (LED) light device 4 and the central shaft 7 maximum angled θ of light emitting diode (LED) light device 4.Under the condition of the width of given ray shoots hand-hole b, the length 1 of light emitting diode (LED) light device 4 has determined angle θ.Compact parabola shaped focalizer for desirable draws for example following relation:
1＝b/2(1+sin?θ)cos?θ/sin
2?θ
In order to reach the open-angle of maximum for example θ=9 °, the length 1 of light emitting diode (LED) light device 4 must be similar 23 times of width of ray shoots hand-hole b.
Fig. 3 illustrates, and as the substitute mode of the optical focus device of CPC form, described light emitting diode (LED) light device also can have and is stretched over portal 5 sidewall 8 of ray shoots along straight line from ray shoots hand-hole b.Wherein light emitting diode (LED) light device 4 can be one that make by dielectric material, have the integral body of frustum-like shape or pyramidal citation form.Ray shoots 5 modes according to spherical or non-sphere lens of portalling are outwards arched upward, these lens constitute an additional light emitting diode (LED) light device 9, be the part of light emitting diode (LED) light device, and be suitable for reducing passing the divergence of the ray 3 of optical element 4.
Fig. 4 A represents the see-through view according to the light-emitting diode 20 of light-emitting diode 20 the 3rd embodiment.
In this embodiment, a plurality of light-emitting diodes section of jurisdiction 1 is placed on the support 2 along straight line.Preferably four or five light-emitting diodes sections of jurisdiction are placed on the support.
Fig. 5 A represents the perspective side elevation view of first embodiment of lighting device described herein.Fig. 5 B represents corresponding front view.
A plurality of light-emitting diodes section of jurisdiction 20, as at Fig. 1, in 3 or 4 as described in, be installed on the support 33 at this.The cooling body of the heat that support 33 preferred also conducts are produced by light-emitting diode 20 when operation.For example support 33 has the cooling muscle for this reason on the surface of its backward luminous diode 20.Support 33 preferably contains for example copper of a kind of extremely heat conductive metal.
Three light-emitting diodes of light-emitting diode 20-be in this embodiment-with support 33 can be by means of fitting pin 32 mutual calibrations.Light-emitting diode 20 is mutual calibration in this way also.Described fitting pin 32 can be independent part.So support 33 and light-emitting diode 20 have dead slot, for example mating holes.Mating holes on support 33 and the light-emitting diode 20 has makes fitting pin 32 evenly be installed to diameter in the mating holes.
Can make described fitting pin become the integrated component of support 33 in addition.That is to say that fitting pin is that mechanical fixation ground is connected with support 33.This can for example just realize when making support 33.The printed circuit board (PCB) 25 of light-emitting diode 20 has the dead slot 24 that is suitable for holding this fitting pin subsequently.
Can make fitting pin 32 become the integrated component of light-emitting diode 20 equally.The dead slot that holds this fitting pin is set on support 33 subsequently.
Can make support 33 and light-emitting diode 20 by means of the mating mark mutual calibration in addition.Subsequently, light-emitting diode 20 can for example be finished by an image processing system with respect to the calibration of support 33 and the therefore mutual calibration of light-emitting diode 20.Mating mark is positioned on the printed circuit board (PCB) 25 of light-emitting diode 20 for example for this reason.Mating mark can be calibrated by the camera collection and with reference to being positioned at a reference point on the support 33.This reference point can be other mating mark.
Be positioned at the mating mark on support 33 and the light-emitting diode 20 or by label, perhaps certain assembly by the lighting device part provides: for example the particular led sheet 1 of light-emitting diode 20 can be this mating mark.
In this embodiment of lighting device, a common optical element 30 is set after light-emitting diode 2.Described optical element 30 for example is arranged on the diffraction after all light-emitting diodes of lighting device 20 or the lens of refraction, thereby makes the light of all light-emitting diodes 20 emissions be modulated by optical element 30.
Described optical element 30 and support 33 are by means of fitting pin 31 mutual calibrations.The also mutual calibration in this way of light-emitting diode 20 and optical element 30.
Fitting pin 1 can be independent part.But also can make fitting pin 31 become the integrated component of support 33 or optical element 30.Other each part has the dead slot that is suitable for holding fitting pin 31, for example mating holes subsequently.
Preferably after light-emitting diode 20 and support 33 mutual calibrations and optical element 30 and support 33 mutual calibrations, light-emitting diode 20 mechanical fixation ground is connected with support.For example can light-emitting diode 20 and support 33 is bonding, bolt connects or ca(u)lk connects.Optical element 30 also preferably finishes mechanical fixation ground, back at calibration process and is connected with support 33.
Fig. 6 A represents the perspective side elevation view of lighting device second embodiment.Fig. 6 B represents corresponding front view.
Opposite with embodiment represented among Fig. 5 A and the 5B, each light-emitting diode 20 is corresponding with an optical element 30 uniquely herein.Optical element 30 for example is the lens of refraction or diffraction.Optical element 30 and fixedly the support 33 of light-emitting diode 20 once more by means of fitting pin 32 mutual calibrations.
In addition, another common optical element (not shown) can be set after optical element 30, thereby whole system is configured to secondary optics.Additional common optics can be realized by means of fitting pin or an optical imagery treatment system with respect to the calibration of support 33.Described additional common optics for example is one of following optical element: diffraction optical device, diffractive optical devices, reflective optical device, hologram optics device.
Fig. 7 A represents the perspective side elevation view of the 3rd embodiment of lighting device described herein.Fig. 7 B represents corresponding front view.
Opposite with the embodiment among Fig. 6 A and the 6B, this is provided with a fiberoptics device 30 after being in light-emitting diode 20.On described fiberoptics device 30, in the fiber that couples light to light-guiding system by 1 generation of light-emitting diodes section of jurisdiction.Preferred each light-emitting diodes section of jurisdiction 1 will couple light in firm what a unique fiber corresponding to this light-emitting diodes section of jurisdiction 1 of fiberoptics device.Described fiberoptics device 30 and support 33 still can be by means of fitting pin 32 and corresponding mating holes mutual calibrations.
Fig. 8 A represents the perspective side elevation view of the 4th embodiment of lighting device described herein.Fig. 8 B represents corresponding front view.
In this embodiment, at least one light-emitting diode 20 directly is installed on the speculum 34.Preferably a plurality of light-emitting diodes 20 are installed in the speculum 34.For example light-emitting diode 20 has mating holes.By means of fitting pin 32 light-emitting diode 20 is calibrated with respect to speculum 34 subsequently.Speculum 34 is calibrated with respect to support 33 by means of fitting pin.
An additional optical element can be installed on the speculum 34.Should additional optical element 30 can for example be the optical element of a kind of refraction or diffraction.Described optical element 30 can be calibrated with respect to speculum by means of fitting pin 31, and therefore with respect to light-emitting diode 20 calibrations that are fixed in the speculum.
In all embodiment, can make at least one light-emitting diodes section of jurisdiction of light-emitting diode 20 be suitable for the electromagnetic radiation of irradiate near infrared rays wave band.Ray by the emission of infrared light-emitting diode sheet can obtain using on the night-vision devices of automobile for example under the condition of using a fluorescence detector.For example a photodiode can be installed in the front zone of automobile as detector.For example described photodiode is fixed on the support 33 and with support and contacts.Red light portion by the ray of infrared light-emitting diode sheet emission can be used to improve the color table present worth by the white light of light-emitting diode 20 emissions.
This patent application requires the priority of German patent application 102004052687.7 and 102004056252.0-54, and their disclosed contents are incorporated herein by reference.
The present invention is not limited to the description according to embodiment.Or rather, the present invention has comprised each combination of each new feature and feature, especially comprises each combination of feature in the claims, even this feature maybe should not provide in claim or embodiment clearly in combination itself.
Claims (25)
1. an automotive headlight has at least one lighting device, and this lighting device has
At least one light-emitting diode (20), this at least one light-emitting diode by the calibration of at least one fitting pin (32) and support (33) and
At least one optical element (30), this at least one optical element is calibrated by at least one other fitting pin (31) and support (33),
Wherein light-emitting diode (20) and optical element (30) are by means of described fitting pin (31,32) mutual calibration.
2. automotive headlight as claimed in claim 1 wherein just is provided with an optical element (30) afterwards at each light-emitting diode (20).
3. automotive headlight as claimed in claim 1 or 2 wherein is provided with a common optical element (30) afterwards at a plurality of light-emitting diodes (20).
4. as each described automotive headlight in the claim 1 to 2, wherein said optical element (30) is made of the fiberoptics device at least in part.
5. as the described automotive headlight of above-mentioned claim 4, wherein in the just fiber that couples light to described fiberoptics device by light-emitting diodes section of jurisdiction (1) emission.
6. as each described automotive headlight in the claim 1 to 2, wherein said at least one fitting pin (31) is the integrated component of described optical element (30).
7. as each described automotive headlight in the claim 1 to 2, wherein said optical element (30) has the dead slot that at least one is suitable for holding fitting pin.
8. as each described automotive headlight in the claim 1 to 2, wherein described optical element (30) is arranged on the support (33).
9. automotive headlight as claimed in claim 8, wherein said at least one other fitting pin (31) is the integrated component of described support (33).
10. automotive headlight as claimed in claim 8, wherein said support (33) have at least one dead slot that is suitable for holding described other fitting pin (31).
11. automotive headlight as claimed in claim 8 wherein is installed at least one light-emitting diode (20) on the support (33).
12. automotive headlight as claimed in claim 11, wherein said fitting pin (32) is the integrated component of light-emitting diode (20).
13. automotive headlight as claimed in claim 11, wherein said fitting pin (32) is the integrated component of support (33).
14. as each described automotive headlight in the claim 11 to 12, wherein said light-emitting diode (20) has the dead slot that at least one is suitable for holding described fitting pin (32).
15. as each described automotive headlight in the claim 11 to 12, wherein said support (33) has the dead slot that at least one is suitable for holding described fitting pin (32).
16. automotive headlight as claimed in claim 15, wherein light-emitting diode (20) and support (33) are by means of at least one mating mark mutual calibration.
17. automotive headlight as claimed in claim 1, wherein said light-emitting diode (20) have at least one light-emitting diodes section of jurisdiction (1), are provided with light emitting diode (LED) light device (4) afterwards in this light-emitting diodes section of jurisdiction (1).
18. automotive headlight as claimed in claim 17, wherein said light emitting diode (LED) light device (4) are suitable for reducing the divergence by the light of described light-emitting diodes section of jurisdiction (1) emission.
19. as claim 17 or 18 described automotive headlights, wherein said light emitting diode (LED) light device (4) is a kind of optical focus device of not projection.
20. automotive headlight as claimed in claim 19, wherein said light emitting diode (LED) light device (4) constitute according to the form of at least a following optical element at least in part: CPC, CEC, CHC, pyramid, truncated cone.
21. as each described automotive headlight in the claim 17 to 18, wherein said light emitting diode (LED) light device (4) has the ray shoots hand-hole (b) that maximum 2 times of total rays to the light-emitting diodes section of jurisdiction (1) of described light-emitting diode (20) are exported coupling surface.
22. as each described automotive headlight in the claim 17 to 18, wherein at least one light-emitting diodes section of jurisdiction (1) is thin-film led.
23. method that is used to make automotive headlight with at least one lighting device, this lighting device has at least one light-emitting diode (20), wherein this light-emitting diode is by at least one fitting pin (32) and support (33) calibration, this lighting device also has at least one optical element (30), this at least one optical element is by at least one other fitting pin (31) and support (33) calibration
Wherein said optical element (30) and described light-emitting diode (20) are by means of described fitting pin (31,32) mutual calibration.
24. method as claimed in claim 23, wherein light-emitting diode (20) and support (33) are by means of the mating mark mutual calibration.
25. method as claimed in claim 24 wherein adopts the optical imagery treatment system to be used for calibration.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004052687.7 | 2004-10-29 | ||
| DE102004052687 | 2004-10-29 | ||
| DE102004056252.0 | 2004-11-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101095243A CN101095243A (en) | 2007-12-26 |
| CN100539214C true CN100539214C (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800452722A Expired - Fee Related CN100539214C (en) | 2004-10-29 | 2005-10-20 | Lighting device, the manufacture method of automotive headlight and lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100539214C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105745770A (en) * | 2013-09-23 | 2016-07-06 | 奥斯兰姆奥普托半导体有限责任公司 | Method and apparatus for processing an optoelectronic component |
| CN106439679A (en) * | 2015-06-22 | 2017-02-22 | Zkw集团有限责任公司 | Lighting device for a motor vehicle with luminescent elements |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT513362B1 (en) * | 2012-08-23 | 2014-06-15 | Zizala Lichtsysteme Gmbh | Method for positioning a light-shaping body |
| TWI535972B (en) * | 2014-11-26 | 2016-06-01 | 中強光電股份有限公司 | Vehicle lighting device |
| US10495278B2 (en) * | 2017-03-30 | 2019-12-03 | Valeo North America, Inc. | Vehicle lighting device with adjustable alignment frame for an optical element and method for assembling a lighting device with an adjustable frame for an optical element |
-
2005
- 2005-10-20 CN CNB2005800452722A patent/CN100539214C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105745770A (en) * | 2013-09-23 | 2016-07-06 | 奥斯兰姆奥普托半导体有限责任公司 | Method and apparatus for processing an optoelectronic component |
| CN105745770B (en) * | 2013-09-23 | 2018-09-07 | 奥斯兰姆奥普托半导体有限责任公司 | Method and apparatus for handling photoelectric subassembly |
| US10147683B2 (en) | 2013-09-23 | 2018-12-04 | Osram Opto Semiconductors Gmbh | Method and apparatus that processes an optoelectronic component |
| CN106439679A (en) * | 2015-06-22 | 2017-02-22 | Zkw集团有限责任公司 | Lighting device for a motor vehicle with luminescent elements |
| CN106439679B (en) * | 2015-06-22 | 2019-06-21 | Zkw集团有限责任公司 | The lighting device for motor vehicle with light-emitting component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101095243A (en) | 2007-12-26 |
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