CN102959326A - Optical zoom assembly for a non-imaging illumination application and luminaire using same - Google Patents
Optical zoom assembly for a non-imaging illumination application and luminaire using same Download PDFInfo
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- CN102959326A CN102959326A CN2011800340281A CN201180034028A CN102959326A CN 102959326 A CN102959326 A CN 102959326A CN 2011800340281 A CN2011800340281 A CN 2011800340281A CN 201180034028 A CN201180034028 A CN 201180034028A CN 102959326 A CN102959326 A CN 102959326A
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- light
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- zoom
- collector lens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/008—Combination of two or more successive refractors along an optical axis
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
- G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/0994—Fibers, light pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
An optical zoom assembly (16) for a non- imaging illumination application and luminaire (10) using the same are disclosed. In one embodiment, a light emitting diode chip (40) provides light to an optical conductor (46 ) having a plurality of transmission paths that enable the mixing of the light. A collector lens (48) is disposed serially and coaxially with the optical conductor to the mixed light received from the optical conductor. A zoom subassembly (50), including one or more optical lenses located serially and coaxially with the central optical axis, is movable coaxially with respect to the collector lens to create a beam of light having a divergence profile controlled by a variable spacing between the one or more optical lenses and the collector lens.
Description
Technical field
Present invention relates in general to the establishment of artificial light or illumination, and relate to especially the luminaire of this optical zoom assembly of a kind of optical zoom assembly for non-imaging illumination applications and the distribution of use control luminous energy.
Background technology
About non-imaging illumination applications, ever-increasing promise to environment and sustainability is reflected in from filament and high-intensity discharge lamp to the transformation of light emitting diode (LED).With filament and high-intensity discharge lamp contrast be, the LED solution comprises the led chip encapsulation, and these encapsulation typically every encapsulation comprise a plurality of led chips.These led chips are encapsulated in has relatively simple optics in the encapsulation itself, it provides blend of colors, collimation, zoom or other beam-shapings of any needs so that the secondary optics system necessitates.The recent variation of light source is so that new zoom lens necessitate, and these zoom lens have considered to comprise the peculiar property of the LED light source of temperature and spectrum.
Summary of the invention
Advantageously realize a kind of optical zoom assembly for non-imaging illumination applications and the luminaire that uses this optical zoom assembly.Have in the sight of specific blend of colors and collimation requirement at led light source, what wish equally is to allow to realize a kind of solid-state solution of controlling the luminous energy distribution.In order to solve better one or more that these passes hit, in one aspect of the invention, provided an embodiment of optical zoom assembly, it has the light-emitting diode chip for backlight unit that light is provided to optical conductor, and this optical conductor has a plurality of transmission paths of the mixing that allows light.The collector lens are with the optical conductor serial and be set to coaxially the light that mixes that is received from optical conductor.Comprise with the central optical axis serial and the zoom sub-component of one or more optical lenses of location can be with respect to the coaxial movement of optical lens coaxially, in order to create the light beam with divergence profiles of controlling by the variable spacing between described one or more optical lenses and the collector lens.
In addition, in order to solve better one or more that aforementioned pass hits, in one aspect of the invention, provided an embodiment of luminaire, it can be provided for the complete ligthing paraphernalia of various application.These and other aspects of the present invention will be well-known according to embodiment described below, and set forth with reference to described embodiment.
Description of drawings
In order more completely to understand the features and advantages of the present invention, now with accompanying drawing with reference to detailed description of the present invention, wherein the respective drawings mark among the different figure refers to corresponding part and wherein:
Fig. 1 is the perspective view of an embodiment of luminaire that combines the optical zoom assembly of the instruction that provides according to this paper;
Fig. 2 is the perspective view of the luminaire of painting among Fig. 1, and its part is broken away better reveal internal parts;
Fig. 3 is initial at the perspective view of Fig. 1 with the nested array of the optical zoom assembly shown in Fig. 2 for illustrating in further detail;
Fig. 4 is the front view of an embodiment of optical zoom assembly;
Fig. 5 is the viewgraph of cross-section of optical zoom assembly shown in Fig. 4;
Fig. 6 is the top view of the different vantage point of optical zoom assembly shown in Fig. 4 with Fig. 7;
Fig. 8-10 is the side view of light by an embodiment of a series of lens propagation of optical zoom assembly;
Figure 11-13 is the side view of light by another embodiment of a series of lens propagation of optical zoom assembly;
Figure 14 is the curve map of angle and the zoom travel relationships of optical zoom assembly;
Figure 15 is the intensity of optimization baseline intensity of representative LED collimating optics device blocks and the curve map of vertical angle relation; And
Figure 16 is that the circle of representative LED collimating optics device blocks is separated the intensity of the baseline intensity of piling up array and the curve map of vertical angle relation.
The specific embodiment
Although formation and the use of each different embodiment of the present invention at length have been discussed hereinafter, should be understood that, the invention provides the many applicable inventive concept that can be included in the various certain scenarios.The specific embodiment of this paper discussion has only illustrated to be made and uses ad hoc fashion of the present invention, and scope of the present invention is not demarcated.
At first referring to figs. 1 through 3, wherein described an embodiment of the luminaire of the instruction that provides according to this paper, this luminaire schematically is illustrated and is appointed as generally 10.Shell 12 is suitable for holding framework 14 and optical zoom assembly, and these optical zoom assemblies are numbered 16 and be fixed in the shell 12 by framework 14 jointly.Framework 14 comprises pedestal 18, a series of platforms 20,22,24, and the extremity piece 26 that passes through a series of axial pole interconnection such as pillar 28.Optical zoom assembly 16 comprises each optical zoom assembly 16-1,16-2 and 16-3.Also be installed to radiator sub-component 30 absorptions in pedestal 18 and the inclosure shell 12 and disperse the heat that is produced by optical zoom assembly 16.In one embodiment, radiator sub-component 30 comprises almost quiet fan, and these fans are forced the air cooling for the internal part that comprises optical zoom assembly 16 provides.
Fig. 4 to 7 has drawn optical zoom assembly 16-1 with additional details.Led chip encapsulation 40 provides light source and comprises with array 42 and be arranged in a plurality of color LED chip G, R, B, W on the single elongated bases member 44, and it can comprise provides the bonding wire (not shown).As shown in the figure, led chip G, R, B, W are oriented to provide the angular emission pattern of hope in order to improve blend of colors with respect to optical zoom assembly 16-1.Yet, should be understood that, depend on application, led chip G, R, B, W can be with the arranged in arrays of other types.
Led chip G, the R of array 42, B, W comprise respectively conventional green, redness, blueness and the white LED chip of transmitting green, redness, blueness and white light.Such led chip is conducive to be expelled to efficiently among the optical zoom assembly 16-1 and strengthens consumingly blend of colors.As scheme institute and paint, in order further to strengthen the quality of the white light that is produced by the led chip encapsulation, utilize four led chips that comprise a red LED chips (R), a green LED chip (G), a blue led chip (B) and a white LED chip (W).Yet what it is contemplated that is that along with the progress of led chip design, the led chip of varying number and/or the led chip of different colours can be used in the array in order to optimize the quality of the light that is produced by led chip encapsulation 40.For example, in one embodiment, utilize four led chips that comprise a red LED chips (R), a Green Chip (G), a blue led chip (B) and an amber led chip (A).Lift other example, in another embodiment, utilize four led chips that comprise a red LED chips (R), two Green Chips (G1, G2) and a blue led chip (B).What can further imagine is that the two can be used in low-power and high-capacity LED chip in the led chip encapsulation 40.
In an embodiment of the instruction that this paper provides, the elongated bases member 44 that is coupled to platform 20 can comprise the electric insulation shell of for example being made by plastics or pottery, seal silicon submount (submount) setting metal heat sink thereon.Metal heat sink provides heat radiation to the led chip encapsulation 40 that arranges thereon.Further heat radiation is provided by radiator sub-component 30, and as mentioned, this radiator sub-component comprises that the supply of adjacent metal radiator forces air cooled almost quiet fan.Elongated bases member 44 may further include lead-in wire, and these lead-in wires are isolated by shell and metal heat sink and led chip G, R, B, W electricity.Wire bonds is electrically connected to lead-in wire with led chip G, R, B, W.
Optical zoom assembly 16-1 comprises optical conductor 46, collector lens 48 and zoom sub-component 50.Optical conductor 46 extends and passes through platform 22,24 from platform 20.The coupling axle collar 52 and sealing are fixed to optical conductor 46 with collector lens 48.As shown in the figure, basic component 56,58 is kept the position of the coupling axle collar 52 and is fixed to the there by securing member 64,66 in conjunction with vertical support 60,62.Zoom sub-component 50 is oriented to shown in arrow 78 relation with 48 one-tenth variable interval of collector lens, and can be with respect to its coaxial movement.The adjutage 70 that is coupled to pillar 28 support zoom sub-components 50 and zoom sub-component 50 by the fixing axle collar 72,74 and with its coupling.As shown in the figure, variable spaces 78 or distance are by being regulated the actuating of adjutage 70 by linear actuators, and described linear actuators can comprise the threaded drive shaft that is for example activated by servo motor.Such movement of adjutage 70 is drawn by arrow 76, and it moves corresponding with the variation in variable spacing or space 78.
The actuator of other types also is in the instruction that this paper provides.Depend on application, such actuator includes but not limited to electric servomotor, pneumatic or hydraulic actuator or even manually-operated actuator.As hereinafter discussing in further detail, the actuator of these same types can be used for controlling the independent movement of the optical lens in the zoom sub-component 50.The control system that is used for luminaire 10 can be independent of Supervisor Control Console and operate or or even (if wishing like this) of free-running operation, vibrate between the degree in order to advance at two.In an operation embodiment, the luminaire 10 with described optical zoom assembly forms the part of automation multi-parameter illumination array, provides Long-distance Control and presents with Azimuth And Elevation adjusting that coordinate and light-operated light beam.
It is π that optical conductor 46 has area of section at first end 80
r 1 2Input aperture 82, wherein radius is
r 1, and to have the second area of section at the second end 84 be π
r 2 2Output aperture 86, wherein radius is
r 2 Optical conductor 46 is superimposed upon on led chip encapsulation 40 and led chip G, R, B, the W, is delivered to output aperture 86 in order to receive from the light in the source at input 82 places, aperture and with light.The first area of section π
r 1 2Can be substantially equal to the second area of section π
r 2 2Thereby, input aperture 82 and output aperture 86 have the diameter that basically equates and
r 1Can equal
r 2Replacedly, the first area of section π
r 1 2Can reduce to gradually the second area of section π
r 2 2, wherein
r 1Greater than
r 2As the replaceable scheme of another kind, the second area of section π
r 2 2Can reduce to gradually the first area of section π
r 1 2, wherein
r 2Greater than
r 1Can be that the wall part 88 of the part of cylindrical wall portion or irregular wall or tapered wall will be inputted aperture 82 and be connected with output aperture 86, and can comprise the surface of revolution of common formation cylinder.
Supporting construction 104 can be coupled to pedestal 14 in order to hold and support optical conductor 46 and sleeve pipe 100.Especially, the shoulder ring can hold sleeve pipe 100.Gasket seal can be sealed to supporting construction 104 led chip encapsulation 40 and securing member 112,114 with supporting construction 104 and its coupling.Heat conduction path is present between led chip 40 and the sleeve pipe 100 in order to heat radiation is provided.
In one embodiment, the central optical axis serial of collector lens 48 and optical conductor 46 and be arranged on coaxially 86 places, output aperture of optical conductor 46.About collector lens 48, main body 120 can comprise sphere or aspheric surface 122,124.In this embodiment, collector lens 48 have the geometry of the gathering of supply light, can comprise the reflecting material 126 of being made by the transparent low transmission loss of column dielectric substance.Should be understood that, other geometries are among the embodiment that this paper provides.
In one implementation, zoom sub-component 50 comprises the one or more optical lenses 130,132 that are positioned at shell 142, and this shell has the aperture of aiming at the central optical axis of optical conductor 46.These lens can with this central optical axis serial and coaxial.Zoom sub-component 50 can be mobile coaxially with respect to optical lens 130,132.Zoom sub-component 50 forms light beam from light mixing, that assemble from collector lens 48.As hereinafter will discussing in further detail, light beam have by described one or more optical lenses 132,130 and collector lens 48 between the divergence profiles of variable spacing control.As shown in the figure, the light that enters shell 142 passed the surface 134,136 and the surface 138,140 of optical lens 140 of optical lens 130 before the plane 146 places outgoing that finishes lens 36.Should be understood that, depend on specific application, surperficial 134-140 can have similar or different curvature.In addition, the spacing between the optical lens 130,132 will depend on application.And zoom sub-component 50 can comprise for relative to each other reorientating optical lens 130,132 various plant equipment.In this implementation, not only the spacing between the optical lens 130,132 changes, and the spacing between zoom sub-component 50 and the collector lens 48 also changes.
Fig. 8-10 has drawn a plurality of light beams that pass through optical zoom assembly 16-1.At first with reference to the Fig. 8 as Fig. 4 and Fig. 5 one operation embodiment, the plain tube bank (bundle) 150 that can transmit therein by light source for optical conductor 46 homogenising of optical mixing rod or light pipe.The intensity barycenter of plain tube bank 150 moves to output aperture 86 from input aperture 82 in mode longitudinally on the direction consistent with central optical axis 154.The reflecting surface of the reflecting material that arranges along optical conductor 46 comprise with respect to the movement of the light that therefrom passes through vertically or axial direction is vertical or the surface normal that tilts.The path of reflecting material supply such as path 152 advanced and is mixed with each other thereby described path is used for light beam.As mentioned previously, led chip (G, R, B, W) can have the differently-oriented directivity of at least part of inner space 102 towards optical conductor 46 in order to initiate described reflection and mixing.
More particularly, optical conductor 46 provides a plurality of paths 152 that passed through by a plurality of light beams that are referred to as plain tube bank 150.Described a plurality of path 152 mixes the light beam that receives and so that the intensity barycenter of plain tube bank 150 moves to output aperture 86 in vertical mode from input aperture 82.Then, plain tube bank 150 leaves optical conductor 46 and entered collector lens 48 at surperficial 122 places before being present in surface 124.In one embodiment, collector lens 48 can allow to realize that individual reflection, collimation in the collector lens 48 transmit.At collector lens 48 places, plain tube bank 150 is assembled, and therefore in the exit on surface 124, plain tube bank 150 is transformed into the plain tube bank 158 of gathering.The gathered light traverse distance d of the mixing of the plain tube bank 158 of assembling
1, this distance is the interval between collector lens 48 and the optical lens 130.In the figure, the location of zoom sub-component 50 is by the bracketed positional representation of the shell 142 of zoom sub-component 50.
The plain tube bank 158 of assembling incides on the flat surfaces 134 of optical lens 130, and this optical lens is depicted as the auxiliary holding tank lens.At optical lens 130 places, the plain tube bank 158 of gathering was further being assembled via pass from surperficial 134 arrival there in surperficial 136 o'clock.By this plain tube bank of plain tube bank in the zoom sub-component 160 expression traverse distance d then
2, this is in distance between the optical lens 130,132 in the zoom sub-component 150 apart from expression.Plain tube bank 160 passes the surface 138,140 of the optical lens 132 that is depicted as collimation lens in the zoom sub-component.Yet, should be understood that, depend on application, optical lens 130 and 132 can have the function different from the function described in the present embodiment.So, the transmission of collimation of plain tube bank appears in order to produce therefrom basically uniformly pupil or light beam 162, its have by described one or more optical lenses 130,132 and collector lens 48 between variable spacing d
1, d
2The divergence profiles 148 of control.In other words, variable spacing d
1, d
2The control zoom.
Should be understood that, the structure of the collimating optics of LED shown in Fig. 1 to 8 device blocks can change.For example, optical conductor 46 and collector lens 48 can integrally form or be bonded together in order to form integral unit.In any situation, these two parts still are called optical conductor 46 and collector lens 48.Such as determining preferred constructing technology specific to characteristic and the factor the cost used.
Yet, should be understood that, optical conductor is not limited to cylindrical wall portion.Optical conductor also can comprise the non-cylindrical shape of the inner space that creates different wall parts and correspondence.For example, optical conductor can comprise faceted wall part, and this wall part has 6 sides.In addition for example, optical conductor can comprise the wall part with 8 sides.In other words, optical conductor can comprise that the side of any amount or facet and it may further include circle or cylindrical wall portion.And as discussed previously, optical conductor can be taper.
Be in the instruction that this paper provides for other embodiment of the optical conductor 46 of optical zoom assembly 16.As discussed previously, optical conductor 46 can be taked various shapes.Except having various shapes, optical conductor 46 can or have the mixing tubulose, rod of sidewall for for example tubulose, wherein have tubulose or its combination of main body.
Be similar to optical conductor 46, the main body of collector lens 48 can have various forms, comprise the main body that for example has sidewall, the main body for solid element with wall part and reflecting material, the main body that has side wall member and the solid element with wall part and reflecting material wherein is set, perhaps its combination.Similarly, as mentioned, optical lens 130,132 structure and place and can change similarly.
Referring now to Fig. 9, the optical lens 130,132 of optical zoom assembly 50 is moved mutually more closely.Especially, auxiliary holding tank lens 130 and zoom lens 132 are as one man shifted to collector lens 48, so that the variable spacing d between collector lens 48 and the auxiliary collecting lens 130
1Reduce and auxiliary holding tank lens 48 and zoom lens 132 between variable spacing d
2Remain unchanged.As shown in the figure, plain tube bank 150 is mixed and then assembled at collector lens 48 places when it passes optical conductor 46.The gathered light 158 of mixing incides on the flat surfaces 134 of auxiliary holding tank lens 130 and is further assembled when passing therefrom.Then, plain tube bank 160 traverse distance d before leaving as the light beam 162 with divergence profiles 148
2And pass zoom lens 142.
As will pointing out, divergence profiles 148 by described one or more optical lenses 130,132 and collector lens 48 between variable spacing d
1, d
2Control.In this embodiment, the divergence profiles 148 among Fig. 9 is greater than the divergence profiles 148 among Fig. 8, because variable spacing d
1Reduced.When described one or more optical lenses 130,132 and collector lens 48 between variable spacing d
1, d
2When reducing, the divergence profiles 148 of light beam 162 broadens.For example, optical zoom assembly 16-1 activates from Fig. 8 to Fig. 9.On the other hand, when described one or more optical lenses 130,132 and collector lens 48 between variable spacing d
1, d
2During increase, the divergence profiles 148 of light beam 162 narrows down.For example, optical zoom assembly 16-1 activates from Fig. 9 to Fig. 8.
In Figure 10, collection or collector lens 48 are oriented to as close as possible optical conductor 46, and similarly, collector lens 48, optical lens 130 and optical zoom lens 132 are oriented to as close as possible in order to form nested arrangement in tight volume.In this embodiment, when the distance between the lens 48,130,132 was minimized, refraction effect caused maximizing the net effect of the divergence profiles 148 of light beam 162.
Figure 10 has drawn and has wherein regulated variable spacing d
1, d
2The example of the two.This actuating of passing through zoom sub-component 50 is to regulate variable spacing d
1With internal actuating in the zoom sub-component 50 to regulate variable range d
2Realize.Should be understood that, the divergence of the divergence profiles 148 by the optics chain depends on the distance of the separation between lens 48,130,132 the surface and lens 48,130,132 compositions itself.And, light beam passes the differentiation of lens series and behavior by Snell's law (Snell ' s Law) domination, according to this law, the light that from the transfer of air to glass or more generally is delivered to more unsound medium from finer and close medium is refracted and leaves surface normal.In the embodiment shown, the dynamics of given optics, when lens 48,130,132 are oriented to when more close together, divergence profiles 148 increases.In other words, when the interval between the lens 48,130,132 increased substantially, divergence profiles 148 reduced usually.
Figure 11 and Figure 12 have drawn a plurality of light beams 150 of another embodiment that passes through optical zoom assembly 16.In this embodiment, comprise that the zoom sub-component 50 that has in this embodiment surface 172,174 single zoom lens 170 has the variable spacing d with respect to collector lens 48
1As passing through relatively Figure 11 and shown in Figure 12, the variable spacing d between collector lens 48 and the zoom lens 170
1Optionally controlled and reduced in order to increase the divergence profiles 148 of light beam.Should be understood that variable spacing d
1Can be by increasing apart from d
1Optionally controlled in order to reduce the divergence profiles 176 of light beam 178.Should be understood that, zoom sub-component 50 can comprise the optical lens of any amount and arrangement therein, so that variable spacing d
1D
nBe created in order to optics chain and the divergence profiles 148 of robust as needed are provided.And form and the function of the optical lens in the zoom sub-component 50 also can change along with application.
Figure 13 has drawn a plurality of light beams of another embodiment that passes through optical zoom assembly 16.As shown in the figure, compare with Figure 12, optical lens 170 has different internal optics attributes.This causes the different collection modes in the optical lens 170, and also causes the different divergence profiles 176 of light beam 178.
To provide and discuss now the experimental result that obtains from modeling prototype optical zoom apparatus.Figure 14 has drawn representative for the angle of the baseline intensity of the tightly packed device of individual layer and the curve map of zoom travel relationships.Here, the vertical angle of light incident represents with the number of degrees, and the zoom stroke represents with millimeter, so that angle is the function of zoom stroke shown in line 190.Figure 15 has drawn illumination figure and Figure 16 with distribution 192 and has shown this illumination figure has distribution 194 along the x axle cross section or section.
Although described the present invention with reference to illustrative embodiment, this specification is not expected on the limited significance and makes an explanation.When the reference specification, the various modification of described illustrative embodiment and other embodiment of the present invention and combination will be well-known for those skilled in the art.Therefore, be contemplated that claims contain any such modification or embodiment.
Claims (22)
1. optical zoom assembly comprises:
Light-emitting diode chip for backlight unit, it provides a plurality of light sources;
Optical conductor, it has input aperture and output aperture, this optical conductor is used for receiving light and propagating light to the output aperture by the there along central optical axis at place, input aperture, and this optical conductor provides a plurality of transmission paths that intersect with central optical axis and allows to mix the light from the input aperture to the output aperture that is received from described a plurality of light sources;
The collector lens, itself and central optical axis serial and be arranged on coaxially the place, output aperture, these collector lens are assembled the light of the mixing that is received from optical conductor;
The zoom sub-component, it comprises and central optical axis serial and one or more optical lenses of location coaxially, and this zoom sub-component can be mobile coaxially with respect to optical lens, and this zoom sub-component forms light beam from the light of the gathering of the mixing that is received from the collector lens; And
Described light beam has the divergence profiles by the control of the variable spacing between described one or more optical lenses and the collector lens.
2. optical zoom assembly as claimed in claim 1, wherein when the variable spacing between described one or more optical lenses and the collector lens reduced, the divergence profiles of light beam broadened.
3. optical zoom assembly as claimed in claim 1, wherein when the variable spacing between described one or more optical lenses and the collector lens increased, the divergence profiles of light beam narrowed down.
4. optical zoom assembly as claimed in claim 1 further comprises be used to making described one or more optical lens and central optical axis relative to the linear actuators that moves coaxially.
5. optical zoom assembly as claimed in claim 4, wherein linear actuators comprises the threaded drive shaft that is activated by servo motor.
6. optical module as claimed in claim 1, wherein optical conductor has cylindrical form.
7. optical module as claimed in claim 1, wherein optical conductor has the taper form.
8. optical module as claimed in claim 1, wherein the collector lens have spherical form.
9. optical module as claimed in claim 1, wherein said one or more optical lenses comprise the auxiliary holding tank lens.
10. optical module as claimed in claim 1, wherein said one or more optical lenses comprise at least one zoom lens.
11. optical module as claimed in claim 1, wherein the longitudinal axis of optical conductor basically with the trunnion axis quadrature of light-emitting diode chip for backlight unit, this light-emitting diode chip for backlight unit provides light at place, input aperture.
12. optical module as claimed in claim 1, wherein optical conductor and collector lens integrally form.
13. optical module as claimed in claim 1, wherein optical conductor and collector lens are individually formed and are coupled.
14. a method that is used for the control optical zoom comprises:
Provide optical conductor with central optical axis and there with central optical axis serial and the collector lens that arrange coaxially;
Provide to comprise and central optical axis serial and the zoom sub-component of one or more optical lenses of location coaxially, this zoom sub-component can be mobile coaxially with respect to optical lens;
Via propagating and mixed light along central optical axis by optical conductor;
The light of assembling the mixing that is received from optical conductor at collector lens place; And
Be controlled at the divergence profiles of the light of the gathering that mixes that zoom sub-component place receives by changing described one or more optical lens and spacing between the collector lens.
15. method as claimed in claim 14, wherein the divergence profiles of the light of the gathering of control mixing further comprises the spacing between the described one or more optical lenses of the linear activated adjusting that utilizes described one or more optical lenses and the collector lens.
16. method as claimed in claim 14 further comprises by reducing described one or more optical lens with variable spacing between the collector lens divergence profiles of the light of the gathering that mixes being broadened.
17. method as claimed in claim 14 further comprises by increasing described one or more optical lens with variable spacing between the collector lens divergence profiles of the light of the gathering that mixes being narrowed down.
18. an optical zoom assembly comprises:
Optical conductor, it has central optical axis;
The collector lens, itself and central optical axis serial and be arranged on coaxially the optical conductor place;
The zoom sub-component, it comprises and central optical axis serial and one or more optical lenses of location coaxially, this zoom sub-component can be mobile coaxially with respect to optical lens; And
The zoom sub-component comprises be used to the device that changes the spacing between described one or more optical lens and the collector lens,
The light that wherein receives at the optical conductor place mixes via propagating along central optical axis by optical conductor, collector lens place is received from the light of the mixing of optical conductor is assembled, and the divergence profiles of the light of the gathering of the mixing of zoom sub-component place reception is by described device control for changing spacing.
19. method as claimed in claim 18, the device that wherein is used for changing the spacing between described one or more optical lens and the collector lens reduces so that the divergence profiles of the light of the gathering that mixes broadens.
20. method as claimed in claim 18, wherein be used for changing the spacing between described one or more optical lens and the collector lens the device increase so that the divergence profiles of the light of the gathering that mixes narrow down.
21. a luminaire comprises:
Pedestal;
A plurality of optical zoom assemblies, it is separately positioned on the pedestal in order to light beam is provided, and each in described a plurality of optical zoom assemblies comprises:
Optical conductor, it has central optical axis,
The collector lens, itself and central optical axis serial and be arranged on coaxially the optical conductor place, and
The zoom sub-component, it comprises and central optical axis serial and one or more optical lenses of location coaxially, this zoom sub-component can be mobile coaxially with respect to optical lens,
Described light beam has the divergence profiles by the control of the variable spacing between described one or more optical lenses and the collector lens; And
Shell, it is suitable for holding pedestal and described a plurality of optical zoom assembly.
22. luminaire as claimed in claim 21, wherein said a plurality of optical zoom assemblies are arranged such that the light beam of luminaire emission forms single even pupil.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36280310P | 2010-07-09 | 2010-07-09 | |
| US61/362,803 | 2010-07-09 | ||
| PCT/IB2011/053019 WO2012004760A1 (en) | 2010-07-09 | 2011-07-07 | Optical zoom assembly for a non-imaging illumination application and luminaire using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102959326A true CN102959326A (en) | 2013-03-06 |
Family
ID=44653367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800340281A Pending CN102959326A (en) | 2010-07-09 | 2011-07-07 | Optical zoom assembly for a non-imaging illumination application and luminaire using same |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2591282A1 (en) |
| CN (1) | CN102959326A (en) |
| TW (1) | TW201229559A (en) |
| WO (1) | WO2012004760A1 (en) |
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| CN104748010A (en) * | 2015-03-19 | 2015-07-01 | 佛山市百特思舞台设备有限公司 | LED lamplight projection method and lamplight projection device included in same |
| CN105334702A (en) * | 2014-08-06 | 2016-02-17 | 叙丰企业股份有限公司 | Light source module of exposure equipment |
| CN105793765A (en) * | 2013-10-01 | 2016-07-20 | 罗布照明有限公司 | Collimation and homogenization system for an LED luminaire |
| CN107390479A (en) * | 2017-09-01 | 2017-11-24 | 东莞科视自动化科技有限公司 | A kind of exposure machine light source optical module |
| US10161599B2 (en) | 2014-03-10 | 2018-12-25 | Robe Lighting S.R.O. | Resonance movement dampening system for an automated luminaire |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201229559A (en) | 2012-07-16 |
| WO2012004760A1 (en) | 2012-01-12 |
| EP2591282A1 (en) | 2013-05-15 |
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Application publication date: 20130306 |