CN100587321C - LED lighting system with helical fiber filament - Google Patents
LED lighting system with helical fiber filament Download PDFInfo
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- CN100587321C CN100587321C CN200680032889A CN200680032889A CN100587321C CN 100587321 C CN100587321 C CN 100587321C CN 200680032889 A CN200680032889 A CN 200680032889A CN 200680032889 A CN200680032889 A CN 200680032889A CN 100587321 C CN100587321 C CN 100587321C
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Abstract
A lighting system includes a helical light-transmitting fiber and an LED. The helical light-transmitting fiber is doped with a first wavelength converting material and defines a helical axis. The LEDhas a light-emitting portion for emitting light of a first color. The LED is aligned axially with the first helical fiber such that a portion of any light emitted by the LED will pass through the openspace between the turns of the first helical fiber and a portion of any light emitted by the LED will be received by the first helical fiber and converted to light of a second color. Adjustment of the compression of the helical fiber will adjust the mixture of colors in the light emitted by the system. Further, the relatively small cross-sectional area of the fiber serves to lessen any dye migration in the fiber.
Description
The cross reference of related application
The present invention requires the US temporary patent application sequence number No.60/697 of submission on July 8th, 2005,781 priority, at this as a reference in conjunction with its disclosed full content.
Technical field
The present invention relates to a kind of light emitting diode (LED) illuminator with helical fiber " filament ".
Background technology
In light weight, wear-resistant, high-intensity LED demonstrate very big hope to paying close attention to the people that substitute the conventional tungsten filament light sources.Yet, use the problem of this LED to be that available visible chromatic spectrum is subjected to the restriction of the limited availability of led color.Therefore, at commonly assigned US patent No. No.7,011, in 421 and examining US patent application serial number No.11/025 jointly, in 019, at this also as a reference, the lighting device that uses fluorescence and phosphorescent coloring has been described in conjunction with disclosed full content wherein, the colourama that allows thus to launch independent use LED and can not obtain usually, and the cost of this lighting device and complexity significantly do not increase.Yet, also wish the color that can regulate the light of launching by this LED/ fuel system easily.
In addition, can move at uneven field of illumination fluorescent dye.Uneven field of illumination can make the dyestuff vibration that is exposed in the higher density and become " heat ", and this then can make dye migration leave this higher density position.When dye migration, the color that the emission of LED/ fuel system obtains can change.Therefore, also wish to reduce or get rid of dye migration in the LED/ fuel system.
Summary of the invention
The present invention will satisfy these and other demand.
Generally speaking, the present invention is a kind of illuminator, comprises first helical form printing opacity fiber and the LED.This first helical form printing opacity fiber doping has first material for transformation of wave length and limits the axis of screw.This LED has the luminous component of the light that is used to launch first color.This LED and first spiral fiber are axially aligned, and make the part of a part by any light of open space between the circle of first spiral fiber and LED emission of any light of LED emission will be received and be converted into the light of second color by first spiral fiber.
According to aspects of the present invention, first helical fiber qualification cylindrical interior space and LED are positioned to the lateral emitting type LED of luminous component in the inside of the first helical fiber inner space.This system also has cup-shaped light collects and hydrid component, and this light is collected and hydrid component has sidewall, blind end, openend and interior zone.This light is collected and hydrid component is axially aligned in the first helical fiber inside, makes the interior zone with light collection hydrid component hold the luminous component and first helical fiber of LED.Light is collected and hydrid component is collected and mix the light of first color and the light of second color, and mixed light is exported to the openend outside.This system also comprises the device of the compression of regulating first helical fiber, is used to regulate the amount of the open space between the circle of first helical fiber, changes the percentage of the light of the light of first color of emitted and second color thus.
More specifically, regulate the device that compresses and comprise first isolated part and first plunger assembly.This isolated part can be a light-transmission tube.This plunger assembly can comprise that thread spindle and thread spindle receive nut.This LED can have the base part that is connected with an end of light-transmission tube.This screw nut can be connected with the other end of light-transmission tube.First helical fiber is positioned at the inside of light-transmission tube.This thread spindle rotatably is contained in the screw nut, and an end of contiguous first helical fiber of an end of thread spindle makes the rotation of thread spindle regulate the open space between the circle of the compression of first helical fiber and first helical fiber.
Illuminator can also have the light transparent member of the exterior circumferential that is positioned at light-transmission tube, perhaps is positioned at the inner surface of the part reflecting part on every side of light collection and hydrid component.Light transparent member and reflecting part all comprise second material for transformation of wave length, are used for converting a part of light of LED emission to the 3rd color.
According to a further aspect in the invention, this illuminator further has second helical fiber, and the diameter of second helical fiber is bigger than the diameter of first helical fiber, and is positioned at axially aligning with first helical fiber of first helical fiber on every side.Second helical fiber is doped with second material for transformation of wave length.This illuminator further can have the device of the compression of regulating second helical fiber, comprises second light-transmission tube and the tubular plunger that is slidably received within the second light-transmission tube inside.
According to a further aspect in the invention, this illuminator has annular light transparent member and leaded light shell, this annular light transparent member has optical waveguide and light scattering character, and this leaded light shell is used for the light from the LED and first helical fiber is imported annular light transparent member.This leaded light shell can have the disk-shaped top reflection part, and this disk-shaped top reflection part covers the top of the opening of annular light transparent member qualification.Top reflector member can also be flexible, is used to regulate the compression of first helical fiber.
In accordance with a further aspect of the present invention, this illuminator can have light transmissive rob, and the position of this light transmissive rob makes at least a portion of this light transmissive rob in the inside of first helical fiber.This LED is top emission structure LED and locatees light is transmitted into the near-end of light transmissive rob.Reflector caps is on the far-end of this light transmissive rob.This light transmissive rob can be bulb-shaped.
According to another aspect of the invention, this illuminator can have light-transmission tube, and this light-transmission tube is located so that the inside of at least a portion of light-transmission tube at first helical fiber.Reflector can be formed on the inside of light-transmission tube, light is exported to the outside of light-transmission tube.This illuminator further can have the device of the compression of regulating first helical fiber, for example solenoid.Further, this system can have and is doped with the different wave length transition material and is wound on multiple fiber around the light-transmission tube with merotomizing abreast or.
Another aspect of the present invention utilization has the LED of bat bat aliform radiating pattern and forms with cheese basically and have a fiber with the corresponding open top in uniform centre radiation areas of LED.Sizeable top cover is placed on the open top of dome-shaped helical fiber.
In one embodiment, light transmissive rob encases first helical fiber.The light transmissive rob and the first helical fiber co-axially align, and top emission structure LED is oriented to light is transmitted in the end of light transmissive rob.
Description of drawings
Fig. 1 is the profile perspective according to first exemplary embodiment of the LED illuminator with helical fiber " filament " of the present invention;
Fig. 2 is the side view of first exemplary embodiment of LED illuminator, has cut away a part of light and has collected and hydrid component;
Fig. 3 is the profile perspective according to second exemplary embodiment of LED illuminator of the present invention;
Fig. 4 is the side view according to the 3rd exemplary embodiment of LED illuminator of the present invention, has cut away a part of light and has collected and hydrid component;
Fig. 5 is the profile perspective according to the 4th exemplary embodiment of LED illuminator of the present invention;
Fig. 6 is the perspective view according to the 5th exemplary embodiment of LED illuminator of the present invention;
Fig. 7 A and Fig. 7 B are the lateral plans of the LED illuminator of Fig. 6;
Fig. 8 is the cross sectional side view according to the 6th exemplary embodiment of LED illuminator of the present invention;
Fig. 9 is the non-cross sectional side view of the LED illuminator of Fig. 8;
Figure 10 A and Figure 10 B are the side views according to the 7th exemplary embodiment of LED illuminator of the present invention;
Figure 11 A and Figure 11 B are the side views according to the 8th exemplary embodiment of LED illuminator of the present invention;
Figure 12 A and Figure 12 B are the side views according to the 9th exemplary embodiment of LED illuminator of the present invention;
Figure 13 is the side view according to the tenth exemplary embodiment of LED illuminator of the present invention;
Figure 14 is the figure of the radiating pattern of exemplary L ED generation;
Figure 15 is the side view according to the 11 exemplary embodiment of LED illuminator of the present invention;
Figure 16 is the side view according to the 12 exemplary embodiment of LED illuminator of the present invention;
Figure 17 is the side view of modification of exemplary embodiment of the LED illuminator of Figure 16.
The specific embodiment
The present invention is the LED illuminator with helical fiber " filament ".
A. first exemplary embodiment: single helical fiber
As shown in Fig. 1 and Fig. 2, first exemplary embodiment 10 of LED illuminator has the device 16 and the light of the compression of helical fiber 12, LED 14, adjustable screw shape fiber 12 and collects and hydrid component 18.
The helical fiber 12 of first exemplary embodiment is the printing opacity fiber that forms cylindrical coil, helical or helix.Helical fiber 12 is doped with material for transformation of wave length, for example fluorescence or phosphorescent coloring or pigment.The axis of screw of helical fiber 12 limits the central axis 20 of LED illuminator 10.Spiral fiber 12 can be by transparent or frosted light transmissive material, and for example acrylic acid etc. is made.
The LED 14 of first exemplary embodiment is lateral emitting type LED.LED 14 axially aligns with the axis of screw of helical fiber 12 and the central axis 20 of LED illuminator.And LED 14 is positioned in the cylindrical interior space of helical fiber 12 qualifications.LED 14 has luminous component 21 and base part 22.LED base part 22 provides the machinery of LED 14 and is electrically connected.Though the parts of not shown operation LED 14 comprise any necessary thermal component that is used for the electric wire of powering to LED 14 and is used for dispelling the heat from LED 14, this is well known by persons skilled in the art.
The device 16 of compression of regulating the helical fiber 12 of first exemplary embodiment comprises isolated part 24, plunger assembly 26 and base part 22.Helical fiber 12 is between plunger assembly 26 and LED base part 22, and isolated part 24 is separated plunger assembly 26 and LED base part 22.More specifically, the isolated part 24 of first exemplary embodiment is a light-transmission tube 28, and plunger assembly 26 comprises that thread spindle 30 and thread spindle receive nut 32, and base part 22 is connected with an end of light-transmission tube 28, makes LED luminous component 21 be positioned at the inside of light-transmission tube 28.Thread spindle receives nut 32 and is connected with the other end of light-transmission tube 28.Helical fiber 12 is positioned at the inside of light-transmission tube 28, and is positioned at the also contiguous LED base part 22 of LED luminous component 21 on every side.Thread spindle 30 is accommodated in thread spindle and receives in the nut 32, makes an end of thread spindle 30 be close to helical fiber 12.In addition, the device 16 of the compression of adjustable screw shape fiber can also have the disc-shaped part 34 between helical axis 30 and helical fiber 12.
Those skilled in the art are to be understood that and can use other machineries and motor machine adjusting device; for example solenoid etc. is regulated the compression of the helical fiber of exemplary embodiment described herein, describes and claimed the spirit and scope of the present invention and do not break away from herein.
Light is collected and hydrid component 18 is cup-shaped and is positioned to coaxial and around LED luminous component 21, helical fiber 12 and part light-transmission tube 28 with the central axis 20 of LED illuminator 10.Light is collected and hydrid component 18 has blind end 36 and openend 38.As shown in Fig. 1 and Fig. 2, thread spindle receives the outside that nut 32 can be affixed to blind end 36, and blind end 36 can have and allows thread spindle 30 outstanding by blind end 36 and enter into that light is collected and the opening size of hydrid component 18 inside.
In the course of the work, the light of LED luminous component 21 emission first wavelength or color.The light of part emission is by the open space between the circle of helical fiber 12, and the light of part emission is received and be converted into the light of second wavelength or color by helical fiber 12.Light is collected and hydrid component 18 is collected and mix the light of first color and the light of second color, and mixed light is exported to outside the openend 38.Preferably, LED 14 emissions have the light of chromatogram Smalt zone (high-energy and short wavelength relatively) wavelength, and the material for transformation of wave length in the helical fiber 12 converts the light of part emission to second color, makes color and the intensity of mixed light near existing tungsten light source.
Advantageously, plunger assembly 26 can be by the open space between the compression or the circle of decompression helical fiber 12 adjustable screw shape fibers 12, changes the percentage of light of the light of first color that exists in the mixed light and second color and the visual color of mixed light thus.Thread spindle 30 will cause the compression or the decompression of spiral fiber 12 about the rotation of thread spindle reception nut 32.Disc-shaped part 34 prevents that spiral fiber 12 from being hit and twisting by thread spindle 30.
Also advantageously, the fiber cross sections that helical fiber 12 is relatively little are long-pending to be played and reduces or get rid of any inhomogeneous of field of illumination on any one point of fiber, and reduces or get rid of the dye migration of the generation because the field of illumination is inhomogeneous thus.
B. second exemplary embodiment: light transparent member is around light-transmission tube
Fig. 3 illustrates second exemplary embodiment 40, similar to previously described system, but the small-sized light transparent member 42 that is doped with the different wave length transition material that further has the exterior circumferential that is positioned at light-transmission tube 28, for example semi-transparent zone, second fiber or printing opacity annular shaped member (going out as shown).During use, light-transmission tube parts 42 have increased derives that light is collected and another degree of regulation of the color of the mixed light of the openend 38 of hydrid component 18.
C. the 3rd exemplary embodiment: reflecting part light collect and the surface, inside of hydrid component around
Similarly, the 3rd exemplary embodiment 50 shown in Fig. 4, the system that Fig. 1 and Fig. 2 describe is similar with combining, but further has light-reflecting components 52, for example annular reflection band, paint coatings etc., it comprises and is positioned at that light is collected and the partial interior surface different wave length transition material on every side of hydrid component 18.During use, reflecting part 52 has also increased derives that light is collected and another degree of regulation of the color of the mixed light of the openend 38 of hydrid component 18.
D. the 4th exemplary embodiment: two filaments
Fig. 5 shows the another exemplary embodiment 60 of LED illuminator.As shown in the figure, the system that Fig. 1 and Fig. 2 describe is similar with combining, and exemplary L ED illuminator has first helical fiber 12, LED 14, regulate the device 16 of compression of first helical fiber 12 and an end of light helical fiber 62.Second helical fiber 62 is between first light-transmission tube 28 and second light-transmission tube 74, around LED luminous component 21 and between LED base part 22 and tubular plunger 76.
Light is collected and hydrid component 18 is cup-shaped and holds LED luminous component 21, first helical fiber 12 and second helical fiber 62 at least in its cup-shaped cavity.Light is collected and hydrid component 18 is used to collect and mix light from LED luminous component 21, first helical fiber 12 and second helical fiber 62.Light is collected and hydrid component 18 has blind end 36 and openend 38.Blind end can be formed by the reflecting plate 80 with reflective inner surface.Blind end 36 can also have and allows second light-transmission tube 74 outstanding by blind end 36 and enter into light to collect hydrid component 18 inner and be used to keep the opening size of second light-transmission tube 74 in the fixed position.
Preferably, tubular plunger 76 also has vertical slit 78, is used to allow the supporting construction (not shown) to extend between second light-transmission tube 74 and first light-transmission tube 28, so that keep first light-transmission tube 28 in the fixed position.
During use, the light of LED luminous component 21 emission first wavelength or color.The light of part emission is by the open space between the circle of first helical fiber 12 and second helical fiber 62.The light of part emission is received and is converted into the light of second wavelength or color by first helical fiber 12.The light of part emission is received and is converted into the light of three-wavelength or color by second helical fiber 62.In addition, the light of a part of second wavelength can also be received and be converted into the light of three-wavelength by second helical fiber 62.Light is collected and hydrid component 18 collections and mix the light of first color, the light of second color and the light of the 3rd color, then with the openend 38 of mixed photoconduction bright dipping collection and hydrid component 18.
Advantageously, cylindrical plunger 72 and tubular plunger 76 can allow by compression or decompress first helical fiber 12 and second helical fiber 62, regulate the open space between the circle of first helical fiber 12 and second helical fiber 62 respectively, change thus the light of light, second color of first color that exists in the mixed light and the 3rd color light percentage and mix and collect and hydrid component 18.Yet the exemplary embodiment of Fig. 5 also has second helical fiber 62 and regulates the device 66 of the compression of second helical fiber 62.
First helical fiber 12 and second helical fiber 62 all are the printing opacity fibers that forms cylindrical coil, helical or helix.Yet the diameter of second helical fiber 62 is bigger than the diameter of first helical fiber 12.Second helical fiber 62 be positioned at first helical fiber around and with first helical fiber, 12 co-axially aligns.First helical fiber 12 is doped with first material for transformation of wave length, and second helical fiber 62 is doped with second material for transformation of wave length.
The device 16 of regulating the compression of first helical fiber 12 comprises first light-transmission tube 28 and cylindrical plunger 72.The internal diameter of first light-transmission tube 28 is bigger than the diameter of first helical fiber 12, and the external diameter of first light-transmission tube 28 is littler than the diameter of second helical fiber 62.First light-transmission tube 28 is between first helical fiber 12 and second helical fiber 62.The diameter of cylindrical plunger 72 is slightly less than the internal diameter of first light-transmission tube 28.Cylindrical plunger 72 is slidingly received in the inside of first light-transmission tube 28, an end of contiguous first helical fiber 12 of an end of cylindrical plunger 72.First helical fiber 12 is in the inside of first light-transmission tube 28, around LED luminous component 21 and between LED base part 22 and cylindrical plunger 72.
The device 66 of regulating the compression of second helical fiber 62 comprises second light-transmission tube 74 and tubular plunger 76.The internal diameter of second light-transmission tube 74 is slightly greater than the diameter of second helical fiber 62.Second light-transmission tube 74 be positioned at second helical fiber 62 around.The diameter of tubular plunger 76 equates basically with the diameter of second helical fiber 62.Tubular plunger 76 is slidingly received between second light-transmission tube 74 and first light-transmission tube 28, and the visual color of the light of an end of tubular plunger 76 contiguous second after closing.
E. the 5th exemplary embodiment: the lighting device that is used to simulate suppressor grid tube or the illumination of similar annular shape
Fig. 6 is the perspective view of the 5th exemplary embodiment 90 with LED illuminator of helical fiber filament.The 5th exemplary embodiment 90 is to be used to simulate the neon of annular shape or the lighting device of similar illumination, describes in for example careful and not commonly assigned jointly application number 11//421,502, at this in conjunction with its whole disclosure as a reference.
The 5th exemplary embodiment 90 has the light transparent member 92 of the annular shape that is formed by light transmission medium.Light transparent member 92 has light-emitting area 94.During use, light transparent member 92 emission has the light of uniform strength basically or brightness, the neon or the similar illumination of simulation annular shape along light-emitting area 94.
Fig. 7 A is the lateral plan of the 5th exemplary embodiment 90 among Fig. 6.As directed, exemplary embodiment 90 has annular light transparent member 92, helical fiber 12, LED14, is used for the device 16 and the leaded light shell 96 of the compression of adjustable screw shape fiber 12.
Light transparent member 92 is " fluting " waveguides, has optical waveguide and light scattering characteristic.As a result, light transparent member 92 has as the uniformity of the characteristic of neon or similar illumination and the light of brightness along light-emitting area 94 emission.
As shown in Fig. 7 B, top reflector member 98 is flexible, makes the effect of the device 16 of its compression of also playing adjustable screw shape fiber 12.By the compression of adjustable screw shape fiber 12, regulate reach light transparent member 92 from the light of LED 14 with from the mixed light of the light of helical fiber 12, change visual color by the light of light transparent member 92 emissions.
F. the 6th exemplary embodiment: light transmissive rob
Fig. 8 illustrates the 6th exemplary embodiment 110 of LED illuminator, has the overcoat 116 and the reflectivity ring/LED retainer/radiator 118 of helical fiber 12, LED 14, light transmissive rob 112, reflector 114, substantially transparent.LED 14 is arranged in reflectivity ring/LED retainer/radiator 118 light is transmitted into the near-end of bar 112.Preferably, LED 14 is top emission structure LED.Helical fiber 12 be positioned at bar 112 around, surround at least a portion bar 112.Reflector 114 covers the far-end 122 (opposite with LED 14) of bar 112.The overcoat 116 of substantially transparent encases bar 112 and helical fiber 12.
Fig. 9 illustrates the 6th exemplary embodiment 110 of the LED illuminator after the assembling.In addition, light source comprises the potting compound (not shown) between LED 14 and light transmissive rob 112.And the LED illuminator comprises electric conductivity lubricating grease (not shown) between LED 14 and reflectivity ring/LED retainer/radiator 118.In addition, the near-end 20 of bar 112 can be level and smooth or coarse (lambertian) or curved surface.Cover 116 is kept for bar 112 is coupled light to the refractive index coupling fluid (not shown) of helical fiber 12.Replacedly, if bar 112 by the scattering material, for example DR acrylic acid is made, and does not need to be used for cover 116 and refractive index coupling fluid that bar 112 is connected with helical fiber 12 so.
During use, along the axis conduction of bar 112, bar 112 is as waveguide usually for light.Interface between refractive index coupling fluid breaks helical fiber 12 and the bar 112, and make helical fiber 12 receive a part of light of bar 112 emissions.The material for transformation of wave length of helical fiber 12 makes the light by helical fiber 12 have the color different with the color of LED 14.Reflector 114 also directs light in the helical fiber 12.In addition, another reflector or mirror (not shown) near-end 120 places that can be arranged in bar 112 direct light into helical fiber 12.Therefore, helical fiber 12 plays the effect of " filament ".
Can control the color (perhaps tone) of the light of emission according to following six variablees: (a) 14 of LED and light wavelength or color; (b) rolling density of helical fiber 12; (c) shape of cross section of helical fiber 12; (d) thickness of helical fiber 12; (e) color and the density of dyestuff in the helical fiber 12; And (f) color and the density of any dyestuff in bar 112 and the cover 116.Though must set up many variablees in advance, can change the rolling density of helical fiber 12 easily.
G. the 7th exemplary embodiment: light-transmission tube with solenoid adjuster
In the 7th exemplary embodiment 130 as shown in Figure 10A and 10B, use solenoid 132 compression helical fibers 12.The 7th exemplary embodiment 130 has light-transmission tube 131, and this light-transmission tube 131 has reflector 134 in the middle of being formed on light is exported to the side of bar 112.It should be noted that the compression set that can use except solenoid 132.In addition, use other reflector arrangements also not break away from instruction of the present invention.For example, the reflector 134 of formation can move along the length of bar 112 to obtain required effect.
By changing the rolling density of helical fiber 12 by this way, can change the color (perhaps tone) of the light of emission when needing.Be worth gazing at ground, the amount of the unaltered light of allow escaping among Figure 10 A is greater than among Figure 10 B.In Figure 10 B, tone away from from the light of LED 14 emission do not change color and towards the hue shift of the light of the material for transformation of wave length emission of helical fiber 12.
If the use phosphorescent coloring will be even helical fiber 12 also will continue luminous after LED 14 closes.If led light source is placed on the focus place of reflector or collector system, will throw this " twilight sunset ".
Can obtain other benefits by in pipe 131, adding dyestuff.
H. the 8th exemplary embodiment: light-transmission tube with helical fiber of multiple close wind
Figure 11 A and 11B illustrate the 8th exemplary embodiment with multiple helical fiber 12,62,142, and each helical fiber all is doped with the different wave length transition material.These multiple helical fiber 12,62,142 close winds.
I. the 9th exemplary embodiment: the light-transmission tube of the multiple helical fiber that having merotomizes reels
Figure 12 A and 12B illustrate the 8th exemplary embodiment with multiple helical fiber 12,62,142, and each helical fiber all is doped with the different wave length transition material.This multiple helical fiber 12,62,142 coiling that merotomizes.
J. the tenth exemplary embodiment: bulb-shaped rod
Figure 13 illustrates the tenth exemplary embodiment 160 of LED illuminator.The tenth embodiment 160 has bulb-shaped rod 162, and wherein bulb-shaped rod 162 has near-end 164 and far-end 166 and is positioned at reflector 168 on the far-end 166.The LED (not shown) can be positioned with in the near-end 164 that light is transmitted into bulb-shaped rod 162.In a kind of modification, bulb 36 is doped with dyestuff.Helical fiber 12 be positioned at bulb-shaped rod 162 around.Helical fiber 12 is doped with material for transformation of wave length.
K. the 11 exemplary embodiment: cheese spiral form fiber
Select the geometry and the material of anti-dye migration that the LED illuminator that has the reduction or got rid of dye migration will be provided.An aspect of the geometry of anti-dye migration is to select to cross its radiation intensity pattern to have basically the LED of part uniformly.For example, Figure 14 illustrates the radiating pattern 170 that is called bat bat aliform figure of the LED model/parts no.LXHL-MB1C generation that is bought by U.S.LLC Lumileds Lighting.Go out as shown, radiating pattern 170 from approximately-20 to+20 the degree central areas quite even.Yet, can cause that the radiation intensity gradients of dye migration is present in the outside of central area.
Figure 15 illustrates the 11 exemplary embodiment of LED illuminator, and it has LED 14, dome-shaped helical fiber 182 and end top cover 184.More specifically, in this embodiment, be chosen in the radiation axis that expands to LED 14 and have the basic LED 14 of radiation intensity pattern uniformly, for example above-described Lumiled LED in about 20 central areas of spending on every side.End top cover 184 separates with LED 14 and is located such that the homogeneous radiation intensity pattern of its edge and LED 14 intersects, and is corresponding with the flat area shown in the bat aliform distributes.End top cover 184 can be the transparent or trnaslucent materials that is doped with dyestuff.Owing to cross end top cover 184 radiation intensity pattern substantially equably, so that the migration of any dyestuff minimize.End top cover 184 can also be a reflective material.Dome-shaped helical fiber 182 concentrates on the radiation axis of the LED 14 between LED 14 and the end top cover 184.Select the diameter of fiber, make the variation of relative intensity on any point in helical fiber 182 less than 10%.
K. the 12 exemplary embodiment: the helical fiber that wraps up in the light transmissive rob
Figure 16 and 17 illustrates the 12 exemplary embodiment of the present invention, has LED 14, helical fiber 12 and light transmissive rob 112.Helical fiber 12 is wrapped in the light transmissive rob 112.The light of LED14 emission distributes by light transmissive rob 112 restrictions and perpendicular to axial symmetry.Light transmissive rob 112 can be transparent or scattering.With reference to Figure 17, the far-end of light transmissive rob is applied coating or dress herring bone with reverberation.
Those skilled in the art understand other embodiment can also be arranged and not break away from instruction of the present invention or following claim restricted portion.Provide this detailed description, and particularly the detail of exemplary embodiment described herein mainly is in order to understand conveniently, be appreciated that not to be unnecessary restriction thus, modification also is conspicuous to those skilled in the art when reading the disclosure content, and can be out of shape and do not break away from the spirit or scope of requirement of the present invention.
Claims (28)
1. illuminator comprises:
With the first helical form printing opacity fiber of spiral-shaped formation, the described first helical form printing opacity fiber doping has first material for transformation of wave length, and the described first helical form printing opacity fiber limits the axis of screw; With
LED, luminous component with the light that is used to launch first color, described LED and the described first helical form printing opacity fiber are axially aligned, make the part of any light of described LED emission by the open space between the circle of the described first helical form printing opacity fiber, and the part of any light of described LED emission will and be converted into the light of second color by described first helical form printing opacity fiber reception.
2. illuminator according to claim 1, wherein, the described first helical form printing opacity fiber further limits cylindrical interior space, wherein said LED is the lateral emitting type LED with luminous component, and wherein said LED luminous component is arranged in the cylindrical interior space of the described first helical form printing opacity fiber.
3. illuminator according to claim 2, further having cup-shaped light collects and hydrid component, this light is collected and hydrid component has sidewall, blind end, openend and interior zone, and axially align with the described first helical form printing opacity fiber, make described LED luminous component and the described first helical form printing opacity fiber be contained in the interior zone of described light collection and hydrid component, described thus light is collected and hydrid component is collected and mix the light of first color and the light of second color, and mixed photoconduction is gone out described openend.
4. illuminator according to claim 3, the device that further comprises the compression of regulating the described first helical form printing opacity fiber, be used for regulating the amount of the open space between the described circle of the described first helical form printing opacity fiber, change the percentage of the light of the light of described first color of described emitted and described second color thus.
5. illuminator according to claim 4, wherein, described lateral emitting type LED further has the base part that is used to provide emitting led machinery of described profile form and electrical connection, and the described device of wherein regulating the described compression of the described first helical form printing opacity fiber comprises first isolated part and first plunger assembly, described first isolated part is separated described first plunger assembly and described LED base part, and the described first helical form printing opacity fiber is between described first plunger assembly and described LED base part.
6. illuminator according to claim 5, wherein, described isolated part is a light-transmission tube, and wherein said plunger assembly comprises that thread spindle and thread spindle receive nut, described LED base part is connected an end of described light-transmission tube, described thread spindle receives the other end that nut is connected described light-transmission tube, the described first helical form printing opacity fiber is positioned at the inside of described light-transmission tube, described thread spindle rotatably is contained in described thread spindle and receives in the nut, one end of the contiguous described first helical form printing opacity fiber of one end of described axle makes the rotation of described thread spindle will regulate the described open space between the described circle of the described compression of the described first helical form printing opacity fiber and the described first helical form printing opacity fiber.
7. illuminator according to claim 6 further has the light transparent member of the exterior circumferential that is positioned at described light-transmission tube, and described light transparent member is doped with second material for transformation of wave length.
8. illuminator according to claim 6 further has the inner surface of the part reflecting part on every side that is positioned at described light collection and hydrid component, and described reflecting part comprises second material for transformation of wave length.
9. illuminator according to claim 1, further have the diameter second helical form printing opacity fiber bigger than the diameter of the described first helical form printing opacity fiber, the described second helical form printing opacity fiber is positioned at axially aligning of the described first helical form printing opacity fiber on every side and with the described first helical form printing opacity fiber, the described second helical form printing opacity fiber doping has second material for transformation of wave length, make that the part of any light of described LED emission will be by the open space between the circle of the described second helical form printing opacity fiber, and the part of any light of described lateral emitting type LED emission will and be converted into the light of the 3rd color by described second helical form printing opacity fiber reception.
10. illuminator according to claim 9, wherein, the described first helical form printing opacity fiber further limits cylindrical interior space, wherein said LED is the lateral emitting type LED with luminous component, and wherein said LED luminous component is arranged in the cylindrical interior space of the described first helical form printing opacity fiber.
11. illuminator according to claim 10, further having cup-shaped light collects and hydrid component, this light is collected and hydrid component has sidewall, blind end, openend and interior zone, and axially align with the described first helical form printing opacity fiber, make described LED luminous component, described first helical form printing opacity fiber and the described second helical form printing opacity fiber are accommodated in the interior zone of described light collection and hydrid component, described thus light is collected and hydrid component is collected and mix the light of first color, the light of the light of second color and the 3rd color, and mixed photoconduction gone out described openend.
12. illuminator according to claim 11, the device that further comprises the compression of regulating the described first helical form printing opacity fiber, device with the compression of regulating the described second helical form printing opacity fiber, be used to regulate the amount of the open space between the circle of the amount of the open space between the circle of the described first helical form printing opacity fiber and the described second helical form printing opacity fiber, change the percentage of the light of the light of the light of described first color of described system emission, described second color and described the 3rd color thus.
13. illuminator according to claim 12,
Wherein said lateral emitting type LED further has and is used to provide the machinery of described lateral emitting type LED and the base part of electrical connection,
Wherein, the described device of regulating the compression of the described first helical form printing opacity fiber comprises first light-transmission tube and the cylindrical plunger that is slidingly received in described first light-transmission tube, described first light-transmission tube is between described first helical form printing opacity fiber and the described second helical form printing opacity fiber, the described first helical form printing opacity fiber between described LED base part and described cylindrical plunger, and
Wherein, the described device of regulating the compression of the described second helical form printing opacity fiber comprises second light-transmission tube and the tubular plunger that is slidingly received in described second light-transmission tube, described second light-transmission tube be positioned at the described second helical form printing opacity fiber around, the described second helical form printing opacity fiber is between described LED base part and described tubular plunger.
14. illuminator according to claim 13, wherein, described tubular plunger has vertical slit, is used to allow supporting construction to extend between described second light-transmission tube and described first light-transmission tube, so that keep described first light-transmission tube in the fixed position.
15. illuminator according to claim 1 further has:
The annular light transparent member has optical waveguide and light scattering character, and locatees coaxially with the described first helical form printing opacity fiber; And
The leaded light shell is used for the light from described LED and the described first helical form printing opacity fiber is imported described light transparent member, makes described annular light transparent member that emission is had the light of basic intensity uniformly or brightness, the neon lighting that is used to simulate annular shape.
16. illuminator according to claim 15, wherein, described leaded light shell has:
The disk-shaped top reflection part, this disk-shaped top reflection part covers the top of the opening that is limited by described annular light transparent member; And
The circular bottom part reflection part covers the bottom of the described opening that is limited by described annular light transparent member, and described LED is accommodated in the opening that is limited by described circular bottom part reflection part.
17. illuminator according to claim 16, wherein, described top reflector member is flexible, is used to regulate the compression of the described first helical form printing opacity fiber.
18. illuminator according to claim 1 further comprises:
Light transmissive rob, described light transmissive rob are located such that at least a portion of described light transmissive rob in the inside of the described first helical form printing opacity fiber, and described light transmissive rob has near-end and far-end; And
Cover the reflector of the described far-end of described light transmissive rob;
Wherein, described LED is the top emission structure LED with in the described near-end that light is transmitted into described light transmissive rob of being positioned.
19. illuminator according to claim 18, wherein, described light transmissive rob is made by light-scattering material, is used for the described first helical form printing opacity fiber optic is coupled to described light transmissive rob.
20. illuminator according to claim 18 further has:
Encase the outer cover of the substantial transparent of described light transmissive rob and the described first helical form printing opacity fiber; And
Fill the refractive index coupling fluid in the space between described outer cover and the described light transmissive rob, be used for the described first helical form printing opacity fiber optic is coupled to described light transmissive rob.
21. illuminator according to claim 18, wherein, described light transmissive rob is bulb-shaped.
22. illuminator according to claim 1 further comprises:
Light-transmission tube, described light-transmission tube are located such that the inside of at least a portion of described light-transmission tube at the described first helical form printing opacity fiber;
The reflector that forms in the inside of described pipe is used for photoconduction is gone out the side of described pipe; And
Regulate the device of the compression of the described first helical form printing opacity fiber, be used to regulate the amount of the open space between the circle of the described first helical form printing opacity fiber, change percentage thus by the light of the light of described first color of described emitted and described second color.
23. illuminator according to claim 22, wherein, the described device of regulating the described compression of the described first helical form printing opacity fiber is a solenoid.
24. illuminator according to claim 22, further comprise the second helical form printing opacity fiber that is doped with second material for transformation of wave length and the triple helical shape printing opacity fiber that is doped with the three-wavelength transition material, the described first helical form printing opacity fiber, the second helical form printing opacity fiber and triple helical shape printing opacity fiber be wound on abreast described light-transmission tube around.
25. illuminator according to claim 22, further comprise the second helical form printing opacity fiber that is doped with second material for transformation of wave length and the triple helical shape printing opacity fiber that is doped with the three-wavelength transition material, the described first helical form printing opacity fiber, the second helical form printing opacity fiber and triple helical shape printing opacity fiber be separated into several partly be wound on described light-transmission tube around.
26. illuminator according to claim 1, wherein, described LED has bat aliform radiating pattern, this figure has the uniform centre zone around the radiation axis of described LED, the wherein said first helical form printing opacity fiber forms the shape of the helix of domed shape basically, have and the corresponding open top in described LED radiating pattern uniform centre zone, and further has the end top cover, the size of this end top cover makes its circular edge corresponding with the described first helical form printing opacity fiber open top, and the described bat aliform radiating pattern that is positioned such that described edge and described LED intersects, select the diameter of the described first helical form printing opacity fiber, make the variation of any some relative intensity in the described first helical form printing opacity fiber less than 10%.
27. illuminator according to claim 1, further has the light transmissive rob that encases the described first helical form printing opacity fiber, described light transmissive rob and the described first helical form printing opacity fiber co-axially align, described light transmissive rob has near-end, and wherein said LED is oriented to light is transmitted into top emission structure LED in the described near-end of described light transmissive rob.
28. illuminator according to claim 27, wherein, described light transmissive rob further has far-end, and this far-end has the reflecting coating that is used for the described light transmissive rob of light reflected back.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69778105P | 2005-07-08 | 2005-07-08 | |
| US60/697,781 | 2005-07-08 | ||
| US11/482,412 | 2006-07-07 |
Publications (2)
| Publication Number | Publication Date |
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| CN101258359A CN101258359A (en) | 2008-09-03 |
| CN100587321C true CN100587321C (en) | 2010-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680032889A Expired - Fee Related CN100587321C (en) | 2005-07-08 | 2006-07-08 | LED lighting system with helical fiber filament |
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| Country | Link |
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| CN (1) | CN100587321C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101751824B (en) * | 2008-12-19 | 2012-06-20 | 鸿富锦精密工业（深圳）有限公司 | Display device |
| CN106053332B (en) * | 2016-06-15 | 2018-12-04 | 浙江海洋大学 | Flexible fiber insertion apparatus |
| JP7262396B2 (en) * | 2017-04-13 | 2023-04-21 | シグニファイ ホールディング ビー ヴィ | Method for 3D printing a 3D article |
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| US5271079A (en) * | 1991-11-08 | 1993-12-14 | Finisar Corporation | Light mixing device with fiber optic output |
| US6190022B1 (en) * | 1995-08-23 | 2001-02-20 | Science & Engineering Associates, Inc. | Enhanced non-lethal visual security device |
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| CN101258359A (en) | 2008-09-03 |
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