CN101408288A

CN101408288A - Light fixture

Info

Publication number: CN101408288A
Application number: CNA2008101769326A
Authority: CN
Inventors: M·格雷斯; M·布瑞麦瑞什
Original assignee: Erco Leuchten GmbH
Current assignee: Erco Leuchten GmbH
Priority date: 2007-07-26
Filing date: 2008-07-25
Publication date: 2009-04-15
Also published as: EP2019254A2; DE102007035528A1; AU2008203146A1; DE102007035528B4; SG149779A1; EP2019254A3; KR20090012153A; DE102007035528B9

Abstract

A light fixture (10) is described and shown. Its uniqueness is comprised inter alia in that facet-like undercut segments (14a, 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l, 14m, 14n) are arranged on the interior (30) of a cup-shaped curved reflector (21).

Description

The lamp assembly

Technical field

The present invention relates to be used to the to throw light on lamp assembly of building surface or its part or outer surface according to the preamble of claim 1 a kind of.

Be based on applicant's German patent application DE102004042915A1 according to the lamp assembly of the preamble of claim 1.

Background technology

Known lamp assembly has reflector, and this reflector has many similar faceted section in the portion within it.Each section has such surface, arches to inner lowland in this surface, and can have sphere, cylindricality or non-spherical basic configuration.

The reflector of describing among the DE19910192A1 is used for folded light beam and also has a plurality of inner classes like faceted section.

Summary of the invention

According to above-mentioned lamp assembly, purpose of the present invention comprises the lamp assembly of a kind of preamble according to claim 1 of further exploitation, so that can control illumination intensity distribution better.

The feature that the present invention the utilizes claim 1 especially feature of characteristic realizes this purpose, therefore, it is characterized in that (HL, HM HN) are arranged at least some sections for radially undercutting (radial undercut) with respect to this center longitudinal axis.

Therefore, principle of the present invention is included in the radially undercutting that provides with respect to this center longitudinal axis basically.The such moulding in inside of this expression reflector or reflector element is so that exist undercutting or dead band (dead region) at least between each section.See this reflector element along its center longitudinal axis, just, see, can not see undercutting or dead band along the center longitudinal axis of reflector inside.These are radially undercutting really.

Radially given shape, curvature, arching or the location of the undercutting section of making become possibility for these.For example, cylindrical segment can be located in a particular manner, so that can produce illumination intensity distribution especially uniformly, or the illumination intensity distribution on a certain solid angle direction.Even when using non-cylindrical portion, for example use when having the spherical of any radius of curvature or aspheric section at different cross section along section, this radially undercutting also can be especially favourable.

Instruction of the present invention can realize the reflector special internal shape in the lamp assembly, and it can be configured in the whole mode that can freely select.Light that send from light source especially, and that be radiated on the reflector can pass near this reflector edge radiation relatively.If the lamp assembly is installed on the ceiling, for example, with the distant place illumination that can make progress of the mode of the sidewall wall of building space.

Lamp assembly of the present invention preferably has the reflector of aluminum.More advantageously, reflector is made by swaged forging aluminium (swaged aluminum).Use aluminium to have many advantages as the material of reflector element.On the one hand, can use traditional material and processing method.On the other hand, aluminium provides high-quality especially surface, and especially the optical engineering aspect has reflecting surface efficiently.In addition, reflector element can cheaply be made and be very bright.

On the other hand, because the lamp assembly of invention can not utilize traditional step manufacturing, because the radially undercutting of original creation arranges that it can not be from mould shaft to removing.Need a kind of manufacture method of innovation and the instrument and the mould of innovation.This will illustrate below.

Mechanism (formulation) with reflector institute foundation of center longitudinal axis relates in particular to main rotational symmetric reflector.The rotation symmetrical reflector is those basic configurations according to them, and just theirs is cup-shaped, is arranged as rotational symmetric about the center longitudinal axis.When section was arranged about the center longitudinal axis with non-rotating symmetrical manner, this basic configuration also was rotational symmetric.

Has the center longitudinal axis that also has reflector in the reflector of square cross section for example.In fact, the reflector axis of extending to its light delivery outlet from the reflector summit is called the center longitudinal axis of reflector.

Provide the mechanism of radially undercutting institute foundation to represent that at least one section that is arranged to than near an edge of reflector is relatively outside more outstanding or overlapping near the adjacent segment on summit at least some sections according to the present invention, this overlapping or outstanding zone is recessed.When from the light delivery outlet of reflector apicad when the center longitudinal axis is seen, this radially forms dead space or shadow volume in the overlapping region.

Lamp assembly illumination building surface of the present invention or its part or outer surface.Lamp assembly of the present invention especially provides the floor surface of building and/or the illumination on wall surface and/or ceiling surface, especially especially uniformly illumination.When lamp assembly of the present invention is made for the external modulation assembly, but for example also illuminating road, meadow and parking lot.Lamp assembly of the present invention is illuminated objects also, for example picture or statue.

This lamp assembly comprises it mainly being reflector, the especially parabolic reflector of cup-shaped bending, just has the reflector of the cross section that mainly is parabolical.In addition, advantageously, the basic configuration of reflector is made and is related generally to its center longitudinal axis rotation symmetry.

Light source can be arranged on reflector inside.This light source can be a HIT lamp assembly for example, for example HIT-TC-CE lamp, or other halogen metal vapour lamp, and perhaps, replacedly, this light source can be one or more LED.Equally, a plurality of HIT lamps can be set in reflector inside.Advantageously, only lamp inserts especially opening by being arranged on the reflector summit to reflector inside by the opening in the reflector.Except the HIT lamp, also can use the low-voltage halogen lamp, for example QT9, QT12 and QT16 illuminator.Especially preferred use mainly is the light source of point-like,, sends those illuminators of light from especially little volume that is.

On a plurality of similar faceted section inside that are arranged in reflector.But reflector inside complete filling has similar faceted section or can the only partially filled section of having, that is, and and along a certain subregion.For example, what can expect is, circumference angle only, and 90 degree for example, just the section of quadrant is filled with similar faceted section, and other 3/4ths reflector mainly is smooth.

Each section has the surface of arching towards inside.The reflecting surface that preferred at least some sections have cylindrical basic shape.This represents that each Duan Youyi body (body) provides, and this body origin is the cylinder especially cross section body of circular cylinder.

As selection, at least some sections have the reflecting surface of spherical or non-spherical basic configuration.This represents that each Duan Youyi body provides, the cross section body of the body that this body origin is differently arched for spheroid or ellipsoid of revolution or along different cross section.

If there is cylindrical portion, in each cylindrical portion, can provide an axis of a cylinder.Axis of a cylinder is the center longitudinal axis of cylindricality element body or in parallel.The cylinder that each cylinder is preferably circular.

The reflecting surface of section is that surface portion that helps to make the section of the beam reflection of sending from light source.In cylindrical portion, reflecting surface arches around the center of cylindricality element body longitudinal axis.

In the context of present patent application, each that is parallel to that the center longitudinal axis of cylindrical portion extends in parallel is called the axis of a cylinder of cylindrical portion.

Advantageously, a plurality of cylindrical portion are arranged between the free edge of the summit of reflector and reflector.These cylindrical portion can be arranged as directly and adjoin each other, and carry out the transition to by this way each other, for example with similar step-wise manner or sawtooth mode.Two cylindrical portion also can be arranged to mutually away from, that is, and be arranged to mutually away from cylindrical portion between have smooth or smooth surface or have the section of different non-cylindricality bow-shaped structurals (non-cylindrical arch).

In lamp assembly of the present invention, advantageously, axis of a cylinder is oriented like this, that is, acutangulate with respect to the center longitudinal axis of reflector, promptly less than the angles of 90 degree.Therefore, cylindrical portion is arranged like this, makes that their axis of a cylinder is crossing with the center longitudinal axis of acute angle and reflector.Advantageously, in the different different sections of the distance on reflector summit, axis of a cylinder is with respect to the orientation difference of the center longitudinal axis of reflector.

In each cylindrical portion, provide join domain.The join domain of the section zone section of being called that section is connected with reflector.It can be the head region (head region) of cylindrical portion, and for example, just cylindrical portion is in abutting connection with the zone on reflector summit or the transverse area of cylindrical portion.The section join domain preferably in abutting connection with reflector the section the zone.In each join domain of section, tangent line (tangent) can be arranged on the outside of reflector.The outer surface of reflector is understood that in the face of the slotted-type reflector surface away from inside.The outer surface of supposing reflector is not by structuring, and reflector only has extremely thin wall thickness.If the outside of reflector is by structuring, then to imaginary curve for example parabola apply tangent line, thereby limit the basic configuration of reflector.

Deflecting angle is preferably formed between the axis of a cylinder of tangent line and dependent segment.This deflecting angle is acute angle and along with the variable in distance between section and the reflector summit preferably.

Statement in another way, cylindrical portion are arranged like this and are orientated, and make when seeing cross section by reflector, help the promptly surperficial so orientation of vertical side of the cylinder of optics light deflection, thereby they form the polygonized structure of the basic configuration that departs from reflector.

In this mode, for example also suitably locate the cylindricality facet with using main parabolical and can imitate reflector with oval basic configuration by the reflector that arches.Compare with the reflector with non-circular cross-section, for example this makes reflector can have little planform, and correspondingly makes the design of lamp assembly can only have shallow fitting depth.

On the other hand, use radially undercutting location cylindricality facet to produce near any desired illumination intensity distribution by instruction according to the present invention.For example, obtaining fully uniformly in given light field, illumination intensity distribution is possible.As selection, using the lamp assembly to throw light in the situation of the floor in building house for example and sidewall, sidewall can be illuminated especially equably.Because light is reflected to upper side wall, so this can be implemented.

Because light beam is expanded by the surface that irradiation cylindricality ground arches, can realizes uniform especially illumination intensity distribution and produce " white light " so use has the facet of cylindricality reflecting surface.Simultaneously, use cylindrical portion to make it possible to influence illumination intensity distribution in the mode of expectation with different deflecting angles.The layout of undercutting makes its radiation-curable light, especially in very high room area.

The faceted favourable layout of cylindricality, that is, deflecting angle is different and changing along with the distance from section to the reflector summit, makes the deflection up and down of some light.Term " makes progress " and " downwards " is meant that the ceiling of reflector arranges, and relevant with the cutaway view of reflector.Statement utilizes different deflecting angles in another way, and light can be by the mode of expectation with the angular deflection section of advancing with respect to the expection of the center longitudinal axis of reflector.Like this, illumination intensity distribution especially advantageously changes in the mode of expectation.

The size of undercutting can change, that is, for example, not only radially overlapping quantity but also undercutting also can change with respect to the height of center longitudinal axis.Thereby the size of undercutting both can change with reflector angledly, also can on the direction of center longitudinal axis, change, this direction just just in time along the basic configuration of the edge of reflector and the reflector between the summit promptly along the direction of the row of section.The variation of undercutting depends on the illumination intensity distribution that will produce of expection.

According to another advantageous embodiment of the present invention, light source is a point-like.This is a kind of light source mainly as spot light,, only sends light from a very little volume that is.The metallic vapour Halogen lamp LED, for example the HIT-TC-CE lamp, as the QT lamp of low pressure halogen lamp, or at least one LED lamp is advantageously as light source.Naturally, a plurality of light emitters or one group of light emitter also can be arranged on reflector inside, preferably near the focus of reflector or at the focus place of reflector.On the one hand, this makes can predetermined special illumination intensity distribution become possibility, and it has guaranteed high photoelectric current on the other hand.

According to another advantageous embodiment of the present invention, reflector has the cross section of parabolical substantially.Thereby this reflector is made as parabolic reflector.With regard to the basic configuration of this reflector, advantageously rotational symmetric substantially.This shows, need not consider the section of any asymmetric arrangement, and the cup-shaped of reflector forms by a body, and this body rotates symmetry substantially about the center longitudinal axis of reflector.

Therefore, advantageously, reflector has circular substantially light delivery outlet.Reflector appends on the lamp assembly, and it is can be for example overlapping with the free edge of reflector by the part of the shell that is used for the lamp assembly and/or fastener (for example screw).If the lamp assembly is ceiling encapsulation lamp (can light) or spotlight (downlight), the free edge of reflector can be for example and ceiling surface termination.

According to an advantageous embodiment of the present invention, the radius of curvature of section changes along row.Row is the circular arrangement about the section of reflector center longitudinal axis.If section arranges along the total inner surface of reflector, row or can be closed to the small part row.If section only arranges along the angle of circumference of reflector inner surface that the angle of circumference that row also can only pass the reflector inner surface extends.

When using the rotation symmetrical reflector and substantially during the light source of point-like, along row section radius of curvature can produce and deviate from rotational symmetric illumination intensity distribution.For example, can produce ellipse illumination intensity distribution substantially, the car park areas or utilize lamp assembly illumination sculpture place of being particularly suitable for for example being used to throw light on just is used to throw light on sculpture or similar object.

The lamp assembly also can directly be arranged on the ceiling of building and as spotlight.As selection, the lamp assembly can be via the ceiling that is attached to rooms of buildings between conductor rail.In each of the lamp assembly of two above-mentioned applications, lamp assembly can the throw light on sidewall areas of rooms of buildings and the floor area in the room that throws light on simultaneously.If only roomed sidewall and surface, a part of floor need illumination, the radius of curvature of section changes along row, for example the quadrant section of reflector inner surface is filled with the cylindricality facet with first radius, and is filled with other its rate radius with other section in the corresponding residue of 270 degree circumferential areas 3/4ths circles of reflector.

Use the cylindricality facet of special location in above-mentioned 1/4th circumferential area, the sidewall that will throw light on mode especially uniformly throws light on and is also very far away apart from top.In such lamp assembly, produce the illumination intensity distribution of non-rotating symmetry substantially.

Comparable lamp assembly also can be made into two opposing sidewalls zones of the rooms of buildings that is used to throw light on, for example, and the corridor of longitudinal extension, the floor area of illumination simultaneously.In this embodiment, the total inner surface of reflector is divided into four sections, thereby has the reflector of biplane symmetry, specifically, be symmetrical to two such planes, the center longitudinal axis of reflector is passed on these two planes, vertical mutually, and crossing at longitudinal axis place, the center of reflector.

According to another embodiment of the present invention, along row, the radius of curvature of section is invariable.Especially can produce illumination intensity distribution especially uniformly according to one embodiment of the invention, particularly rotational symmetric substantially illumination intensity distribution has almost constant illumination intensity distribution along illumination surface.

The radius of curvature of section can or keep constant along the row variation.Row are layouts of the section of arranging along the same circumference angle, and are adjacent between the summit of reflector and free edge.Whether the radius of curvature of section changes or the special constant illumination intensity distribution that depends on expectation of guarantor along row.For example, narrow relatively, tight radiation just, light cone, or very broad light cone can obtain by the radius of curvature that changes section along row.

One advantageous embodiment according to the present invention, section, cylindrical portion is especially extended along the inner surface portion subregion of reflector or along a plurality of subregions of the inner surface of reflector.Therefore, for example only the section of the quadrant of about 90 degree of the inner surface of reflector can be filled with cylindrical portion, and other 3/4ths circle (270 degree) of reflector is smooth substantially simultaneously.Can for example make thereby have with low-complexity with the mode of expectation reflector from the illumination intensity distribution not having faceted reflector and depart from.As selection, the inner surface of reflector also can be filled with cylindrical portion and be filled with compound spherical or non-spherical segment.Therefore, first angle of circumference of reflector can be filled with the cylindricality facet, and another angle of circumference of reflector can be filled with spherical or non-spherical segment.

Finally, section, especially cylindrical portion also can be extended along the total inner surface of reflector.

According to another embodiment of the present invention, the angle that departs from changes like this so that arrange that near the cylindrical portion ratio of reflector free edge layout the section near the summit has bigger deflecting angle.Have such layout, it can be relatively far to a large amount of especially light of external reflectance, just, in the ceiling device far away relatively above, thereby even the upper area of sidewall also illuminated.

According to the present invention, section has to small part undercutting radially.At least two adjacent segment of arranging along row of this expression, just in the axial direction, manufacturing exists during from axial direction overlapping with box lunch like this.This can guarantee particularly advantageous location, and cylindricality facet especially is so that pass from some light of light emitted from the unusual free edge emission near reflector.For example, if the lamp assembly is used as spotlight, the sidewall in its room that also should throw light on, even very high sidewall areas also can be illuminated.

Particularly advantageously be, the reflector with cylindrical portion is the aluminium reflector, and it utilizes drawing method to make.By suitably utilizing novel tools of the present invention, can at first obtain the undercutting device.

Cylindrical portion can be arranged along the circular row of advancing angulately and along the radial alignment of extending to the edge from the summit.The section of spaced two row can have the angle of circumference of skew.

And, the invention still further relates to method according to the preamble of claim 35.

A known method is the reflector element that is used for the lamp assembly from the manufacturing of parent material workpiece.From the applicant's above-mentioned German patent application obviously as can be known be to utilize drawing method to make the facet reflector from the aluminium dish.Behind drawing method, reflector has within it and has the cup-shaped of a plurality of similar facet sections in the portion.

Method with prior art begins, and the objective of the invention is to comprise provides a kind of method, uses this method, can make reflector, uses this reflector, can obtain improved variation on illumination intensity distribution.

The present invention uses the feature of claim 35 to realize this purpose, and the invention is characterized in following step:

A) provide initial material supplier's part, especially an aluminium dish;

B) apply relative power between workpiece and formpiston, the formpiston with radial projection is used for producing undercutting between the adjacent segment of workpiece;

C) carry out with respect to the zone of reflector element or moving radially of part or formpiston, so that move out projection from undercutting from component shaping;

D) carry out formpiston with respect to the moving axially of reflector element, be used for removing formpiston from reflector element.

The principle of the inventive method is to begin to comprise to prepare specific mould that it also can be called formpiston.Formpiston has at least two parts that can be shifted mutually.Though the formpiston of prior art is the mould part of single bulk, cloudy type structure be applied to its outside and in reflector element engraving or stamp to produce positive type structure, the method according to this invention, the specific facet structure with radially undercutting can make in the inside of reflector.Yet the manufacturing of the undercutting in the reflector causes and cause significant problem when removing mould.Because overlapping in every at least two adjacent segment in the radial direction prevented to move axially.Therefore, can not remove mould with the method for prior art.

Be shifted with respect to another part former by at least a portion former that makes many parts former, cloudy lateral process can shift out the undercutting of reflector side after carrying out pressing step.Then, moving axially of former can be followed firmly controlling of reflector.As selection, former also can keep securely, and reflector can be shifted relatively.

In utilizing the pressing process of special press device, between workpiece and former, apply relative power.It can comprise, for example, suppresses head, for example the compacting head of roll forming; And a plurality of lever arms.Preferred main the acting in the axial direction of the relative power of pressing process, the mode that operated pressing tool can move radially and remove with entire emission device outer surface moves.Former utilizes operated pressing tool to rotate continuously with the aluminium dish.

The invention still further relates to a kind of instrument, be used to make reflector element according to the cup-shaped bending of cardinal principle of claim 36.

The objective of the invention is to comprise provides a kind of instrument, uses this instrument, can make reflector, and this reflector can design difference aspect its illumination intensity distribution.

The present invention utilizes the feature of claim 36 to realize this purpose.

Instrument of the present invention comprises a molded surface, and this molded surface is used as the formpiston part in forming process, and has radial projection.Radial projection is used for obtaining undercutting on reflector.But formpiston comprises at least one displacing part, but this at least one displacing part can radial displacement with respect at least one other parts.In forming process, in case reflector makes, this instrument provides continuous molded surface, and is mainly consistent with the inside of total inner surface with how much inversion structures or reflector element.

But because the radially inwardly displacement of guiding of the displacing part in zone, in case pressing process finishes, projection just may move radially out from undercutting.

Other advantages of the present invention can be found out in the explanation of other dependent claims and following a plurality of embodiment shown in the drawings.

Description of drawings

Fig. 1 is the partial cross section schematic diagram of the lamp assembly of prior art;

Fig. 1 a is that the only reflector of the lamp assembly of prior art is similar to as the top view on the arrow Ia direction of Fig. 1;

Fig. 2 is the schematic diagram of first embodiment that is similar to the lamp assembly of the present invention of Fig. 1;

Fig. 3 is the amplification sectional view according to the round area I II among Fig. 2;

Fig. 3 a is the zoomed-in view of another embodiment of reflector element of lamp of the present invention of the view of similar Fig. 3, and the spherical segment of the embodiment of Fig. 3 a has replaced cylindrical portion visual among Fig. 3;

Fig. 4 is the schematic diagram according to the embodiment of the reflector of the lamp assembly of the present invention of the arrow IV among Fig. 2;

Fig. 4 a is the view of similar Fig. 4 of second embodiment of the reflector of lamp assembly of the present invention;

Fig. 4 b is the view of similar Fig. 4 of another embodiment of the reflector of lamp assembly of the present invention;

Fig. 5 is the perspective view of another embodiment of the reflector of lamp assembly of the present invention;

Fig. 6 has schematic diagram Fig. 5, that be installed in similar Fig. 1 of the lamp assembly in the ceiling;

Fig. 7 represents for the false color of the illumination intensity distribution that the lamp assembly of Fig. 6 produces on the sidewall that the double-headed arrow of Fig. 6 is represented;

Fig. 7 a is the view of similar Fig. 7 of the illumination intensity distribution that produces on the wall that the double-head arrow of Fig. 6 is represented with rotational symmetric, free facet reflector of the lamp assembly of prior art;

Fig. 8 is another embodiment of the reflector of lamp assembly of the present invention as shown in Figure 5;

Fig. 9 is the schematic diagram of example of beam path of similar Fig. 6 that the lamp assembly of the reflector with similar Fig. 8 is shown;

Figure 10 shows the illumination intensity distribution on the obtainable floor of lamp assembly that utilizes similar Fig. 9;

Figure 11 shows another embodiment of reflector of the lamp assembly of the present invention of similar Fig. 8;

Figure 12 shows the lamp assembly of the reflector with similar Figure 11 along the light distribution curve of two orthogonal viewing planes in the pole-face view;

Figure 13 shows the view of similar Figure 10 of the illumination intensity distribution on the floor of the lamp assembly that is used for similar Figure 12;

Figure 14 is according to the enlarged diagram of the round XIV of the intercepting of Fig. 4 a from delegation's facet excision;

Figure 15 shows the lamp assembly of the present invention of similar Fig. 2 with simple view;

Figure 15 a is a mould of the present invention, and as the result of pressing step, its profile forms the inside of reflector;

Figure 15 b shows the embodiment of Figure 15 a with center of compression part;

Figure 15 c for another embodiment of five part moulds of invention roughly according to the top schematic view of the partial cross section of the transversal XVc-XVc of Figure 15 a;

Figure 15 d shows the embodiment among Figure 15 c with center of compression tools section;

Figure 16 is the schematic diagram of similar Figure 15 c of another embodiment of the present invention's three part moulds;

Figure 17 is another embodiment of mould of the present invention of the mould of similar Figure 16, and three tools sections are separated mutually;

Figure 18 is another embodiment of the mould of the present invention of similar Figure 16, and wherein one of three tools sections radially move inward;

Figure 19 is another embodiment of mould of the present invention, and wherein these two tools sections are rotated about the low pivot in the mold bottom mutually;

Figure 20 is the view of similar Figure 19 of another embodiment of mould of the present invention, and wherein these two tools sections can be rotated about the pivot that is positioned near the mould summit;

Figure 21 is another embodiment of mould of the present invention, and wherein at least two tools sections can radially be shifted mutually; And

Figure 22 be arranged in the apex region and press device in mould and aluminium dish.

Lamp assembly of the present invention with 10 expressions in the accompanying drawing will illustrate below.Should notice at first that for simplicity, comparable part or element are represented with identical Reference numeral, additional sometimes letter and/or subscript with small letter.This also is applicable to the lamp assembly of prior art.

The specific embodiment

At first with reference to the lamp assembly of accompanying drawing 1 and 1a explanation applicant's prior art.

As shown in Figure 1, the lamp assembly 10a of prior art should be installed among the ceiling D in the room in the building.The lamp assembly comprises the light emitting devices (not shown), its be configured in reflector 21 the focal point F place or near.At last, reflector 21 especially is provided with opening 11 at S place, its summit, and for Fig. 1 a looks that succinctly, it is not shown in Fig. 1, and optical transmitting set can insert wherein.The lamp assembly 10 that is used for prior art also has shell (not shown) and socket or bearing (not shown), is used for the part or the element of optical transmitting set, electric wire and all other needs, for example operated device.

The floor surface B of the lamp assembly 10a of prior art illumination rooms of buildings, roughly in the zone between left boundary LB and right boundary RB, and the sidewall SE that throws light on simultaneously, particularly roughly down between boundary UB and the last boundary line OB.The reflector 21 of lamp assembly 10a has a cross section, and this cross section is parabolical and rotational symmetric about its center longitudinal axis M basically.The inside of reflector is smooth basically, just without any section or concavo-convex being formed on the inner surface.

Can see best that from Fig. 1 a the zone of angle of circumference β has been provided with edge notches 12.Edge notches 12 make light from the light emitted of focal point F to reflector element 13 independently on.Reflector element 13 so is installed in the shell outside of reflector 21.The zone that is arranged on the reflector 21 between top edge OA and the lower limb UA among Fig. 1 is excised like this, and it is not known in Fig. 1 but is clearly shown that in Fig. 1 a.From light source, light can directly propagate into reflector element 13 and not be reflected device 21 interceptions.Dotted line L shown in Fig. 1 shows the free edge R of reflector 21 in the zone of recess 12 before recess forms.

Reflector element 13 is used for highland illumination sidewall SE as far as possible, just as close as possible ceiling D.Especially expect the even illumination of sidewall SE.

Though the light beam that sends from light source in Fig. 1 is illustrated at left hand one side of something of reflector 21, the left side to the center longitudinal axis M of reflector, be reflected on left hand reflector one side of something and parallel down on the B of floor substantially the light that shines the element 13 of the angle of circumference β inside sidewall SE that can throw light on.Thereby cause roughly asymmetrical light to distribute.

Owing to the rotational symmetric substantially reflector of at first necessary manufacturing, the manufacturing of this reflector of similar Fig. 1 and 1a is very complicated, necessary then punching press or excision, and final necessary independently reflector element 13 assemblings of using.In addition, independently reflector element 13 must be made separately, and reflector 21 is very accurately located relatively between erecting stage.

On the contrary, next the manufacturing of Shuo Ming lamp assembly of the present invention is obviously simpler, and a plurality of advantages are provided aspect optical engineering especially.At first lamp assembly 10 of the present invention is described with reference to Fig. 2:

Fig. 2 shows first embodiment of the invention lamp assembly 10 of similar Fig. 1 view.

When seeing Fig. 1, at first, be clear that lamp assembly 10 of the present invention also is suitable for being installed among the ceiling D and be used to throw light on building sidewall SE and floor B.For the sake of clarity, the lower part of the sidewall SE of Fig. 1 and floor B omit in Fig. 2.

Fig. 1 and 2 more also shows two reflectors and how to have substantially identical basic configuration.Two reflectors 21 are cup-shaped basically and have the parabolical cross section.On the inside 30 of the reflector 21 that is used for lamp assembly 10 of the present invention, form stepped or laciniation is open-and-shut.This laciniation utilizes cylindrical portion to be formed among the embodiment of Fig. 2 and describes in detail with reference to accompanying drawing 2,3,4,4a, 14 and 15 below.

In schematic top view, Fig. 4 shows the interior views that is used for according to the reflector 21 of the lamp assembly of the invention of similar Fig. 2.Here, be apparent that

facet section

14n, 14m, 14i, the 14n of a plurality of cylindricalitys ₁, 14n ₂, 14n ₃Be arranged in along angle of circumference β on the inner surface 30 of reflector 21.Can find out that from the embodiment of Fig. 4 the remaining area of reflector is used the Y mark, be no facet, just is smooth basically.This no facet zone THE mark, and the subregion of for example about 250 degree of expression are though the region beta of angled extension approximately is 110 degree.Naturally, the size of the region beta of angled extension and Y can be according to the application change of expectation.The quantity of different forming areas also can vary depending on the application.Fig. 4 a shows the embodiment of the reflector 21 of invention, and it has made improvement with respect to Fig. 4, wherein the inner surface 30 whole cylindrical portion that are filled with of reflector.Fig. 4 b shows the embodiment of reflector 21 of the present invention, and it has made improvement with respect to Fig. 4 a.

Fig. 2 shows a plurality of

cylindricality facet

14a, 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l, 14m and 14n and how is provided with to the free edge R of reflector from the summit S of reflector 21.Fig. 3 a

shows facet

14k, 14l, 14m, the 14n amplifier section cutaway view corresponding to the round III among Fig. 2.These are cylindricality facets of skew, be arranged to list between the summit of reflector 21 and edge R adjacent mutually.

It is how to be arranged on the angled direction U mutually that Fig. 4 a shows a plurality of facets direct neighbor.Like this, in Fig. 4 a, in outmost row, exist and

use

14n ₁, 14n ₂, 14n ₃Three sections of mark, Fig. 4 a for example shows the 14i that uses in the 6th outermost row ₁, 14i ₁, 14i ₂, 14i ₃, and 14ni ₄The section of mark.Mode with zoomed-in view in Figure 14 shows this four sections.

Figure 14 has schematically shown light source 18, and collimated light beam for example arrives cylindrical portion 14i from this light emitted ₁Surperficial OF.Show light beam with four collimated light beams.

Utilize this cylindrical portion 14i as what see ₁Embodiment, each cylindrical portion 14i ₁, 14i ₂, 14i ₃, 14i ₄Surperficial OF towards the inside of reflector 21 19 convex curved and form by cylinder with radius r, length l and central shaft m.In Figure 14, the with dashed lines section of being 14i ₄Show radius r and cylinder central shaft m.Each cylindrical portion 14i ₁, 14i ₂, 14i ₃, 14i ₄It is important utilizing its radius r, cylinder central shaft m and cylinder length l to limit.

Parameter m, r and l can change according to each section.Especially the direction of cylinder central shaft m is along with the direction of each section from the fixed point S of reflector 21 to the tangent line that can impose on reflector at the tie point or join domain 15 places of section changes.

Owing to have the curvature of the surperficial OF of radius r, the section of shining 14i ₁Collimated light beam be expanded.Four light beams that illustrate in this example have different angle of reflection δ with respect to parallel incident beam ₁, δ ₂, δ ₃, δ ₄

All other cylindrical portion 14i ₂, 14i ₃, 14i ₄Naturally has comparable radiation characteristic.

Can freely select along the quantity of the section that is listed as with along the quantity of the section of going.The quantity of the quantity of row and row also can freely be selected.

Though the curvature of cylinder reflecting surface OF can be considered the expansion uniformity of light intensity distributions, according to instruction of the present invention, next the illumination intensity distribution that it only can obtain on the particular orientation of expecting when having undercutting HI, HM, HN of cylindrical portion will describe.For this purpose, at first with reference to figure 2 and 15.

Figure 15 is the enlarged diagram as the reflector 21 of the lamp assembly 10 of the present invention among Fig. 2.In this case, all

cylindrical portion

14a, 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l, 14m, the 14n that is arranged in the row is illustrated.Reflector 21 has summit S and edge R, and shape of cross section forms the parabolic type with focal point F.Consider its basic configuration, reflector 21 is rotational symmetric about center longitudinal axis M.Yet, as appreciable from Fig. 4, Fig. 4 b especially, cylindrical portion needs not to be that rotation is symmetrically distributed.

Cylindrical portion

14a, 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l, 14m, 14n are connected each with reflector 21 via join domain 15.The cylindrical portion that each section meets the basic shape of reflector partly is called join domain 15.For example, for the cylinder axis m that illustrates with parabolic type basic configuration reflector 21 ₄, a section 14n has and roughly is positioned at crosspoint P _nThe join domain 15n at place.

At crosspoint P _nIn the zone, tangent line T ₄Can be arranged on the outside 38 of reflector 21.With regard to its direction, tangent line T ₄Irrelevant with any structure of the outside 38 of reflector 21, be mathematical tangent line, be arranged on the mathematic curve of the basic configuration that produces cup-shaped curvature reflectors 21.

In having the reflector 21 of unusual thin-walled, the outer shape 38 of reflector 21 is near the desirable parabolic type zones of mathematics that produce the basic shape of reflectors, or at least very close.Cylinder axis m in Figure 15 ₄With relevant tangent line T ₄Between angle α ₄Mark.α ₄It is so-called deviation average.

Than section 14 _nThe section 14 on more close summit _lAt its join domain 15 _lBe fixed to reflector 21 similarly.Relevant cylinder axis m ₃With relevant tangent line T ₃With deviation angle alpha ₃Intersect.This is equally applicable to the cylinder facet shown in other, for the purpose of Figure 15 clear, and section 14 only _bWith 14 _fWith their cylinder axis m ₁, m ₂And deviation angle alpha ₁, α ₂Mark.

Deviation angle alpha ₁, α ₂, α ₃, α ₄Change.Minute

surface

16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h, 16i, 16j, 16k, 16l, 16m, 16n, the reflector surface OF of each

section

14a, 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l, 14m, 14n just differently tilts with respect to the center longitudinal axis M of reflector 21.The inclination of

minute surface

16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h, 16i, 16j, 16k, 16l, 16m, 16n can all be independent of the basic configuration of reflector 21 and select.

Especially it can throw light on the building house near the sidewall areas SE of ceiling D by the suitable gradient is set, preferably, and near the sidewall areas of the section of the edge R of reflector 21.

The connection or the gradient setting that are used for

cylindricality facet

14a, 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l, 14m, 14n can realize like this, so that cylinder axis m, m ₁, m ₂, m ₃, m ₄For relevant tangent line T ₁, T ₂, T ₃, T ₄Has different deviation angle alpha ₁, α ₂, α ₃, α ₄The variation of deflecting angle needn't be deferred to a certain predetermined rule, for example the rule that increases to edge R from the summit of reflector according to the deflecting angle of section.On the contrary, deflecting angle can be by the variation of expection.Especially the variation of deflecting angle determines by optimizing in the imitation process, unless obtain the illumination intensity distribution of expection.

The present invention has also instructed and has comprised lamp assembly 10, and the section on the summit of close reflector 21 has the deflecting angle bigger than the section of the R that keeps to the side in this lamp assembly.In addition, each facet can have the deflecting angle bigger than other sections, and wherein can to have less deflecting angle be necessary to adjacent segment.

Tangent line T among Figure 15 ₁, T ₂, T ₃, T ₄View only be schematic.The view of Figure 15 is not considered the wall thickness of the reality of reflector.When the direction of decision tangent line, mathematic curve should suppose that best is crooked basic configuration corresponding to reflector.This curve is the parabola with focal point F in the embodiment of Figure 15 and Fig. 2.

In addition or as selecting, as what in the embodiment of Fig. 2, expect, in upper sidewall area, produce high illumination intensity, if this is contemplated to be possible, use the faceted connection of cylindricality, it especially is easy to realize in Figure 15, to obtain improved even illumination intensity distribution on the floor that will throw light on or other surface.Specifically, reflecting surface 16a, the 16b of

cylindrical portion

14a, 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l, 14m, 14n, 16c, 16d, 16e, 16f, 16g, 16h, 16i, 16j, 16k, 16l, 16m, 16n can press the location of expectation fully, utilize simulation program, especially utilize so-called ray tracing method, faceted location can be optimized respectively according to the application of expection.

Faceted use, the cylindricality facet that especially has undercutting HL, HM, HN is proved to be especially favourable in the prioritization scheme of illumination intensity distribution.Except using cylindrical portion, advantageously, connect cylindrical portion like this so that

minute surface

16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h, 16i, 16j, 16k, 16l, 16m, 16n free fully orientation on their direction faceted and that face the inside of reflector 21, specifically, be independent of the basic configuration of reflector.

When the speech that distributes with regard to light is that the reflector of parabolical is simulated cross section when being the reflector of ellipse with cross section, instruction of the present invention can realize in particularly preferred mode.Fig. 2 shows this embodiment.Second focal point F 2 that the light beam that sends from the light source of focal point F all passes the reflector outside.Thereby, cylindrical portion 14a, the 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l, 14m, the 14n that are arranged on the inside 30 of parabolic reflector 21 basically can simulate or copy the radiation characteristic of oval-shaped reflector basically, and cross section is that the reflector 21 of parabolical allows very shallow fitting depth and the required installation width of elliptical reflector.

At first, in present patent application, be understood that it is cylindrical portion based on cylindrical section.Yet in some applications, the cylindricality element body that is used for cylindricality facet body can also select not have columniform basic configuration, for example has the elliptical cylinder-shape cross section.

In the figure of similar Fig. 3, Fig. 3 a shows the part cross section by reflector element 21, and wherein the cylindrical portion 14l among Fig. 3,14m, 14n substitute with

spherical bending section

14k, 14l, 14m, 14n.In the embodiment of Fig. 3 a, the reflecting surface OF of each independent segment forms with the body of the basic configuration with cylindricality, and is the body of sphere with essential part.As selection, among the embodiment of Fig. 3 a, each

section

14k, 14l, 14m, 14n also can be formed by cylinder, and its cylinder axis is angled with reflector 21 basically, so that cylinder axis is extended perpendicular to paper like this with respect to Fig. 3 a.In this case, cylinder axis is the bending axis of each

section

14k, 14l, 14m, 14n.

It is clearer that Fig. 3 a makes that especially undercutting HK, HL, HM, HN are arranged among the embodiment of Fig. 3 a.Be similar to the embodiment of Fig. 3, dotted line E ₁, E ₂, E ₃, E ₄Expression be parallel to crisscross axially or mould remove the line of direction E.Direction of insertion E also is parallel to the center longitudinal axis M of reflector.

Therefore, with HK, HL, HM and HN mark and each be positioned at dotted line E ₁, E ₂, E ₃, E ₄The extinction space in the outside be radially undercutting in the present invention.These are shadow volume or extinction space, and the beholder is not from seeing the inside 19 of reflector 21 along the center vertical view direction of longitudinal axis M.Per two adjacent segment are overlapped in radial direction.In addition, for example section 14k and the adjacent segment 14l among Fig. 3 a is overlapping at overlapping region ü.The undercutting HL that makes in this mode is positioned at and uses E ₂The direction of insertion radial outside of mark.Thereby, dotted line E ₂Represent radially innermost tangent line, it can be arranged on the submarginal section 14l, is parallel to the center longitudinal axis M of reflector 21.

Fig. 4 shows an embodiment of reflector 21, and wherein a zone of the inner surface 30 of reflector only is the zone of extending along angle of circumference β, is filled with

cylindrical portion

14n ₁, 14n ₂, 14n ₃, 14l, 14m, 14n, the subregion THE of the inner surface 30 of reflector simultaneously, roughly along angle of circumference γ, be free section and be smooth basically.Embodiment among Fig. 4 has clearly demonstrated, and the subregion of the inner surface 30 of the reflector 21 of different size and varying number can the section of being filled with, especially cylindrical portion, and this depends in application.It should be noted that this point, the subregion of reflector 21 can be filled with the section of the first kind, cylindrical portion for example, and the other parts zone can be filled with the section of second type, for example spherical segment or non-spherical crooked section, or be filled with flat surfaces as selection.

On the contrary, Fig. 4 a and 4b show two embodiment of the reflector 21 that is used for lamp assembly of the present invention, its inner surface 30 complete filling have cylindrical portion, for following description of drawings, suppose that Fig. 4 a, 4b, 5,8 and 11 embodiment have the reflector that brings to fewer radially undercutting of the present invention.

Fig. 4 a shows an embodiment of reflector 21, and its stage casing is along the capable layout of circumference.Therefore, for example the

section

14n ₁, 14n ₂And 14n ₃Section along outermost row is arranged, section 14i ₁, 14i ₂And 14i ₃Section along the 6th different outermost row is

arranged.Section

14n, 14m, 14l, 14k arrange along a row section.

In the embodiment of Fig. 4 a, the radius of curvature of each section changes along row.Yet in an optional embodiment, radius of curvature also can be invariable along row.In this optional embodiment, only the direction of cylinder axis changes.

Fig. 4 b shows an embodiment of reflector 21, and its relative Fig. 4 a has made improvement, wherein along the angled elongated area Y of circumference ₁The adjacent reflector row be circumferential backlash (offset).It is staggered that other zone of reflector 21 among Fig. 4 b does not have this circumference.

In this reflector in Fig. 5, along angled regional Y ₂Adjacent circumferential skew become obvious especially.Use Y ₂The elongated area, angled ground of the circumference of mark is filled with the cylindrical portion row, per two adjacent lines, and for example capable 17a and 17b or

row

17b and 17c, wide with half section, circumferential backlash is arranged mutually.On the other hand, do not have this circumferential backlash among the embodiment among Fig. 8 and 11.

As can be seen from Figure 5, going 17a and 17c and

row

17b and 17d does not have circumferential backlash relative to each other.Just per two row form no circumferential backlash.

See clearlyer together from

cylindrical portion

14a, 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l, 14m, the 14n of Fig. 3,4a and 5, only cylindrical bending surface OF is used for the light reflection.The surface with the UF mark of facing the light delivery outlet of reflector 21 among Fig. 3 does not have any technical smooth function.Become clear in the surface with the UF mark shown in Fig. 4 a and 5, it is dark that the cylindricality reflecting surface OF among while Fig. 4 a and 5 illustrates.

In addition, the embodiment among Fig. 4 a and the 4b makes it be apparent that, the size of surperficial UF may be selected to be from going to and goes and all fully different on each row.The bright different size zone that illustrates is tangible from Fig. 4 a and 4b.

As can be seen from Figure 5, all cylinder axis m of

correspondent section

14b, 14f, 14i, 14n ₁, m ₂, m ₃, m ₄The center longitudinal axis M that is set to relative reflector 21 acutangulates.As can be seen from Figure 15, the section of close reflector summit S, for example section 14 _bWith 14 _f, center longitudinal axis M has the 21 very little degree or the angle of 5 degree relatively, with the cylinder axis m of period 14i ₃Angle be almost 0 the degree.On the contrary, cylinder axis m ₄Center longitudinal axis M becomes big acute angle relatively.

Can know the variation of finding out deviation angle among Figure 15.Therefore, deviation angle alpha ₄Be approximately 43 degree, and deviation angle alpha ₂Be approximately 34 degree.The similar deflecting angle of 5 measurement levels of relative relevant tangent line with cylinder axis can suitably be used for effectively changing illumination intensity distribution.

In this, shall also be noted that single section 14 minute surface 16 each be parallel to cylinder axis m.Therefore, section 14 clearly among Figure 15 for example _nMinute surface 16 _nBe arranged to be parallel to relevant cylinder axis m ₄

At last, should be noted that this point, advantageously, the total inner surface 30 usefulness cylindrical portion of reflector 21 are filled.

Floor B and wall SE can utilize the embodiment illumination of the reflector of the present invention 21 of similar Fig. 5, especially when utilization is installed in the reflector 21 of the invention lamp assembly 10 in similar Fig. 6 device in the ceiling device.Fig. 6 shows the path of a plurality of exemplary light beams, and supposing along double-head arrow SE does not have the building wall, and only is that the floor will be illuminated.In fact, the illumination of the lamp assembly of similar Fig. 6 is passed the sidewall SE that the room of 3m height for example extends along double-head arrow SE.

Fig. 7 shows the illumination intensity distribution result on sidewall SE, roughly down between boundary UB and the last boundary OB.Wall is wide to be provided with millimeter on X-axis, and the wall height provides on Y-axis.The center of each 0 expression wall, the center longitudinal axis of reflector 21 that is used for similar Fig. 6 of lamp assembly 10 of the present invention is arranged on x=0 and y=1500mm place.Can know from Fig. 7 and to find out wide uniform illumination intensity distribution.View among Fig. 7 is represented illumination intensity distribution with the false color view, and this illumination intensity from inside to outside reduces.When Fig. 7 and Fig. 7 a comparison, difference with the prior art is especially obvious.Fig. 7 a shows the illumination intensity distribution of the lamp assembly that is used for prior art, especially Chang Gui rotational symmetric floodlight reflector (flood reflector).The floodlight reflector of this prior art is rotational symmetric and have a parabolical cross section about the center longitudinal axis.This inner surface is smooth basically, does not just have facet or section.When at the spherical crooked facet of the internal placement of floodlight reflector, also can obtain similar illumination intensity distribution.

Fig. 7 a shows the illumination intensity distribution with Fig. 7 same ratio, supposes that the lamp assembly of prior art in being similar to the installation site of Fig. 7 is installed in the ceiling.Be apparent that, utilize similar Fig. 5 reflector lamp assembly of the present invention upwards arrive and outside clearly more evenly illumination intensity distribution can be as can be seen from Figure 7.

The illumination intensity distribution of similar Fig. 7 can not only rely on spherical or non-sphere or the acquisition of other directed cylindricality facet.The cylindricality facet is required to realize the illumination intensity distribution of similar Fig. 7.

Fig. 5 shows an embodiment of lamp assembly 10 of the present invention, and it can be used for for example spotlight or even spot light.In these two situations, lamp assembly 10 illumination floor B and sidewall SE.

Fig. 8 is the view of similar Fig. 5 of another embodiment that is used for the reflector 21 of lamp assembly of the present invention.Aspect its basic configuration, reflector is rotational symmetric substantially about its center longitudinal axis M.In this case, the radius of curvature of cylindrical portion does not change along the row of section.By simple positioning section, just utilize cylinder axis m to have the different deviation angle alpha location that the embodiment among Figure 15 describes with respect to tangent line T, can obtain the illumination intensity distribution of similar Figure 10, it is characterized in that having higher uniformity.

Fig. 9 is the schematically illustrating of light path of utilizing the several exemplary light beam, and lamp assembly 10 is installed to ceiling D and the floor B that throws light on.Fig. 9 illustrates this system of illumination with the layout of Rotate 180 degree.Figure 10 has illustrated the illumination intensity distribution on the B of floor of lamp assembly 10 similar Fig. 9.Be apparent that, obtain rotational symmetric substantially illumination intensity distribution, it is almost invariable along circle zone, big surface.

Figure 11 has illustrated another embodiment of the reflector structure of the present invention that is used for lamp assembly of the present invention, and wherein the faceted radius of curvature of cylindricality changes along the row of section.Similarly, according to instruction of the present invention, cylindrical portion is located like this so that the relevant relatively tangent line of cylinder axis has different deflecting angles.The illumination intensity distribution of the cardinal principle ellipse of similar Figure 13 can use the reflector of similar Figure 11 to obtain by the lamp assembly according to the present invention.Utilize this lamp assembly, the sculpture that can for example throw light on, thus the reflector of similar Figure 11 21 can be used as the electric light source (spotlight) of sculpture.When using the reflector 21 of similar Figure 11, independently the use of sculpture lens is dispensable.The aurora distribution curve of similar Figure 12 show Figure 13 along axle X=0 and Y=0 the illumination intensity distribution in extremely, the just view of angular-dependent.

Now, also can utilize Figure 15 a-22 that the manufacture method of the present invention of the reflector of the present invention 21 that is used for lamp assembly 10 of the present invention is described below.

Preferably, reflector of the present invention is made by pressing mode by the aluminium dish, just almost circular aluminum dish.The schematic view illustrating of Figure 22 aluminium dish 23 be arranged on the summit SW of mould 22.Mould 22, just so-called formpiston and aluminium dish 23 rotate about center longitudinal axis M together.Its required drive unit is not shown.

Operated pressing tool comprises compacting head or propeller 24, rotatable wheel for example, and two

lever arms

25 and 26, and they can rotate about its pivot shaft 39 and 40 respectively, invest and are fixedly coupled position 41.Compacting 24 is outwards moved from the center ZE of aluminium dish 23 in the radial direction arrow 28, continuously, and is just applying big pressure thereon on the axial direction on the direction of arrow 27 on the end face OS of aluminium dish 23.Apply pressure to mode on the end face OS of aluminium dish 23 and not shown according to the propeller 24 of expection.

In pressing process, compacting 24 lateral surface 29 a continuous edge of suppressing aluminium dishes 23 against mould 22.It is in the axial direction of arrow 27 and all can suppressing according to the shape of lateral surface 29 in the radial direction of arrow 28.

Lever arm

25 and 26 by rotor is possible.Should be noted that operated pressing tool and

lever arm

25,26 with compacting 24 can have diverse basic configuration, it must guarantee that almost compacting 24 can exert pressure on the axial direction 27 and can move on radial direction 28.

From the position of similar Figure 22, along with mould 22 rotation, compacting 24 compacting, along with 23 rotations of rotation aluminium dish, the rim the lateral surface of mould 22 with mould 22, thereby obtains the basic configuration of cup-shaped bending of the reflector 21 of similar Figure 15.Should be noted that outer shape 29 work that cylindricality on the aforesaid reflector 21 or spherical segment are brought mould 22 into, comprise for example hard steel,, for example use laser engraving as how much inversion structures.In cross section, outer shape 29 has for example zigzag structure.For example can find out that the structure on the lateral surface 29 of mould 22 is stamped in the inside 30 of reflector 21 after pressing process finishes from Figure 15 b.

Though having the manufacturing of aluminium reflector of the lamp assembly of bending section is known from applicant's above-mentioned German patent application DE102004042915A1, has being manufactured in the pressing process of the faceted aluminium reflector of undercutting (undercut) and has problems.

According to the present invention, mould 22 suggestions comprise a plurality of parts that can be shifted mutually.In the embodiment of Figure 15 a and 15b, mould comprises core 31, left hand marginal portion 32 and right hand edge part 33.Core 39 is coning upwards advanced and can be at the axial direction and the rightabout superior displacement of arrow 27.In this mode, can between two

marginal portions

32 and 33, insert or remove wedge.In case core 31 is opened suitable mobile space for

marginal portion

32 and 33, but these two

marginal portions

32 and 33 radial displacement just, at least along elongated displacement path, on the direction of

arrow

28a and 28b.

Form continuous profile 29 when similar Figure 15 a inserts the

marginal portion

32 and 33 with core 31, it is will be compressed on the inner surface 30 of reflector 21.When similar Figure 15 b return, core 31 was shifted downwards with respect to outside 32 and 33 according to Figure 15 b.Because the cone shape of core 31,

wall part

32 and 33 can be radially inwardly displaced, and it is with

radially arrow

28a and 28b represent.Radially inwardly being exerted pressure in advance in

marginal portion

32 and 33, for example uses the flexible member (not shown).

Because

marginal portion

28a and 28b move radially, be arranged in laciniation on the marginal portion go out undercutting HL, HN, HM along with its projection VO is removable (also can be a) referring to Fig. 3 and Fig. 3, it is between

cylindricality facet

14l, 14n, 14m and suppress reflector 21, so that mobile row 36 form marginal portions 32,33.In case the radially undercutting of

marginal portion

32 and 33 is finished, this moves at interval 36 and makes it to move out the inside of reflector 21 on the axial direction of arrow 27 and discharge reflector 21.Like this, mould 22 can remove from reflector 21, and no matter radially undercutting HL, HM, HN on the reflector inside 30.

Figure 15 c and 15d show another embodiment of tool of invention 22, with the view of the hatching XVc-XVc in Figure 15 a roughly.Be apparent that this mould 22 comprises five parts,, also have other

marginal portion

34 and 35 except aforesaid

marginal portion

32 and 33 and core 31.In this embodiment of mould 22, in case pressing process finish, at first the viewing plane laterally seen from the observer of core 31, begin to shift out from the position of similar Figure 15 c, so that

marginal portion

34 and 35 can inwardly move radially along arrow 28c and 28d.Then, aforesaid

marginal portion

32 and 33 can inwardly move radially along arrow 28a and 28b.Then, resulting mobile interval 36 make entire die 22,

marginal portion

32,33,34 and 35 and core 31 to move axially along center longitudinal axis M be possible so that mould 22 can be from reflector 21 inner whole removing.

Embodiment among Figure 16 shows another invention mould 22 with three tools section x, y and z, and each has 120 degree angular width.In this case, this view is a top view, the view of similar Figure 15 c, not shown reflector 21 among Figure 16.Figure 16 has only illustrated that elongated area, the angled ground z of the circumference of mould is filled with recessed cylindricality or concave ball shape or the facet IF of counter-rotating roughly, is used for making the spherical or non-sphere of cylindricality, undercutting facet on the respective inner 30 of reflector 21.Other mould part x and y are smooth continuous basically, for example do not have raised or sunken.

Moving radially of mould part must be possible, so that can make undercutting facet 14 on the inside 30 of reflector 21 by tools section z.Compare Figure 16 and 18, this is contingent, and for example tools section z carries out along arrow 28e radially with respect to setting tool part x and y and moves radially.Though Figure 16 shows the position of the mould of for example supposing in the pressing process 22, Figure 18 has illustrated the radially insertion position of mould part z after carrying out pressing process, is used for removing mould from the reflector 21 that has formed.

In the alternate embodiments of similar Figure 17, three tools section x, y and z move radially outwardly, so that they are spaced from each other, represent as double-head arrow.In pressing process, the tools section x of mould 22, y and z are positioned at the retracted position of similar Figure 17, so that the interval of being represented by double-head arrow is not closed part or the sealing of a plurality of enclosure portion (not shown), so that these are not pressed on the inside 30 of reflector 21 at interval.These enclosure portion can be for example axially displaced, and the setting of the embodiment among similar Figure 15 a and the 15b, can have conical outer surface.In order to remove this mould, from the position of similar Figure 17, after the enclosure portion execution moves axially, can begin the radially insertion of these three part x, y and z is moved, so that the position of similar Figure 16 can obtain, wherein mould 22 can remove from reflector 21.

In another embodiment of the mould 22 of Figure 19, it represents like this, but the displacing

part

32,33 of mould 22 also can be carried out pivots about the pivot shaft 37 that is positioned at mould 22 bottom sections and moves.In the alternate embodiments of the mould 22 of similar Figure 20, pivot shaft 37 is arranged in the head region of two marginal portions 32 and 33.The

part

32,33,34 of

mould

22 and 35 move radially also can be moved by pivot and provide are provided for Figure 19 and 20 embodiment.Yet in this case, enclosure portion or spacer (not shown) also must have to prevent moving radially in the pressing process.

Figure 19 and 20 illustrates, in order on the inside 30 of reflector 21, to obtain undercutting facet 14, the respective external shape 29 of mould 22 only also can be provided with along only these parts of the subregion of the outer shape 29 of mould 22, many parts mould 22 or section, its be provided for producing must radial displacement undercutting facet 14.

On the contrary, Figure 15 a represents that to the embodiment among the 15d the protruding VO or the counter-rotating facet IF that can produce also can be provided with along the whole lateral surface 29 of mould 22 on the inside 30 of reflector 21.

Embodiment among Figure 15 a to 22 has illustrated the undercut segments that all moulds 22 can be used for obtaining in depressor reflex device process.Depend on the shape that undercut segments or undercutting have, the outer surface 29 of mould 22 must correspondingly configuredly be similar formpiston with how much inversion structures.

The embodiment in Fig. 3 a, aforementioned description to accompanying drawing mainly illustrates the embodiment of lamp assembly of the present invention, reflector and mould, and these embodiment relate to the section with cylindrical basic shape.Yet instruction of the present invention is included in to be expected between the section that is shaped or the layout of adjacent segment undercutting.Therefore, the basic configuration of section can be for example changes along row or along the circumferencial direction of reflector, so that for example arrange in the cylinder that replaces and the spherical segment of arranging on the direction of row or cylindricality that for example replaces or spherical segment also angledly.In addition, undercutting of the present invention or extinction space can be between adjacent segment, have one of the section of the reflecting surface that curves inwardly and the section of adjacent layout, and they are spaced apart by the undercutting with smooth surface.

At last, the radial depth of undercutting, just the size of overlapping ü can change along the circumferencial direction and/or the row of reflector.

In addition, the geometry of undercutting also can change along the row and/or the row of section.

At last, the height of undercutting, each undercutting just extends axially along the center longitudinal axis M's of undercutting, also can change along faceted row and/or row.

Claims

1. the lamp assembly of be used to throw light on building surface or its part or outer surface, this lamp assembly comprises the inner reflector that has on the longitudinal axis of being centered at of cup-shaped substantially bending, this inside is suitable for the section that keeps light source and be formed with a plurality of facet shapes, in described section at least some have radially aduncate surface, and at least some in described section are formed with the undercutting of radially extending.

2. according to the lamp assembly of claim 1, wherein each described section all has reflecting surface, and this reflecting surface has the spherical or aspheric shape of cylindricality.

3. according to the lamp assembly of claim 1, wherein between the summit and free edge that a plurality of sections are arranged in this reflector.

4. according to the lamp assembly of claim 1, wherein, described section is cylindricality, and is centered on separately the cylinder axis, the center longitudinal axis that each cylinder axis is oriented as with described reflector acutangulates, and this acute angle is along with from the change of described section distance to the limit and change.

5. according to the lamp assembly of claim 4, wherein, in each join domain of cylindrical portion, the cylinder axis of tangent line on the outside of described reflector and section separately forms a deflecting angle.

6. according to the lamp assembly of claim 5, wherein each deflecting angle changes along with separately section and the distance between the summit.

7. according to the lamp assembly of claim 1, wherein said light source is a spot light.

8. according to the lamp assembly of claim 1, wherein said light source is Halogen lamp LED or at least one LED.

9. according to the lamp assembly of claim 1, wherein said light source is arranged near or this focus place of focus of described reflector.

10. according to the lamp assembly of claim 1, wherein said reflector has the cross section of parabolical substantially.

11. according to the lamp assembly of claim 1, wherein said reflector is rotational symmetric about its center longitudinal axis on substantially.

12. according to the lamp assembly of claim 1, wherein said reflector has circular substantially light delivery outlet.

13. according to the lamp assembly of claim 1, the wherein said section form with row arranged, the relative longitudinal axis of described row extends angledly, and described section radius of curvature changes along at least some row.

14. according to the lamp assembly of claim 13, wherein said lamp assembly produces oval-shaped illumination intensity distribution substantially.

15. according to the lamp assembly of claim 1, wherein said lamp assembly directly is arranged on the ceiling in building house and is configured as spotlight.

16. according to the lamp assembly of claim 1, wherein said lamp assembly is arranged on the ceiling of rooms of buildings indirectly by conductor rail, and is spot light.

17. according to the lamp assembly of claim 1, the sidewall areas and the floor area in wherein said lamp assembly illumination room.

18. according to the lamp assembly of claim 17, the wherein said lamp assembly sidewall areas of evenly throwing light on.

19. according to the lamp assembly of claim 1, wherein said lamp assembly is configured as the lamp assembly of installing on bar.

20. according to the lamp assembly of claim 1, wherein, described section arranged in form with row, the relative longitudinal axis of described row extends angledly, and described section radius of curvature is invariable along at least some row.

21. according to the lamp assembly of claim 20, wherein said lamp assembly produces uniform illumination intensity distribution in circular light field.

22. according to the lamp assembly of claim 1, wherein said section arranged in form with row, described row roughly extend to free outward flange from the summit of described reflector, and described section radius of curvature changes along at least some row.

23. according to the lamp assembly of claim 1, wherein said section arranged in form with row, described row roughly extend to free outward flange from the summit of described reflector, and described section radius of curvature is invariable along at least some row.

24. according to the lamp assembly of claim 1, wherein said section is only extended in one or more subregions of the inner surface of described reflector.

25. according to the lamp assembly of claim 24, wherein said subregion limits along circumference.

26. according to the lamp assembly of claim 24, other zone of the inner surface of wherein said reflector is level and smooth substantially.

27. according to the lamp assembly of claim 24, other zone of the inner surface of wherein said reflector is filled with the section of belt surface, or is filled with smooth section, inwards spherical or non-spherical ground, this surface is crooked.

28. according to the lamp assembly of claim 1, wherein said section total inner surface that covers described reflector substantially.

29. according to the lamp assembly of claim 6, wherein said deflecting angle changes like this, makes to have bigger deflecting angle near the section of the free edge of described reflector than the section near the summit of described reflector.

30. according to the lamp assembly of claim 1, wherein said section along arranging to the radial alignment that free edge extends with the angled circular row of axle and along the summit from described reflector.

31. according to the lamp assembly of claim 1, wherein the section of two isolated row has the angle of circumference of skew.

32. according to the lamp assembly of claim 1, one of them described undercutting is arranged in per two and axially goes up adjacent to each other between the section of arranging in this central longitudinal.

33. according to the lamp assembly of claim 1, wherein said reflector element is made of aluminum.

34. according to the lamp assembly of claim 33, wherein said reflector element is a compacting aluminium.

35. one kind is used for by the manufacturing of parent material workpiece and has the method for a plurality of sections reflector in inside, it is characterized in that the following step:

The parent material workpiece is provided;

Apply relative power between described workpiece and formpiston, this formpiston has radial protrusion, is used for producing undercutting between the adjacent segment of this workpiece;

Carry out the segmentation of described formpiston or part with respect to by the moving radially of the reflector element of described component shaping, thereby this projection is shifted out from described undercutting; And

Carry out described formpiston with respect to the moving axially of described reflector element, so that remove described formpiston from described reflector element.

36. instrument that uses the reflector element of the cup-shaped substantially bending of metal forming method manufacturing, this reflector element portion within it is filled with undercut segments, be included in the profiled surface that is used as formpiston in the forming process and is filled with radial protrusion, described radial protrusion is used for obtaining undercutting on described reflector, this instrument comprises at least one displaceable cross section or part, but described at least one displaceable cross section or part are radial displacements with respect at least one other cross section or part, make in this forming process, continuous substantially profiled surface is provided, and, as the result of described displaceable segmentation or radially inner displacement movement partly, described projection can radially shift out from described undercutting.