CN102722014A - Color wheel and light-emitting device - Google Patents
Color wheel and light-emitting device Download PDFInfo
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- CN102722014A CN102722014A CN2012101623119A CN201210162311A CN102722014A CN 102722014 A CN102722014 A CN 102722014A CN 2012101623119 A CN2012101623119 A CN 2012101623119A CN 201210162311 A CN201210162311 A CN 201210162311A CN 102722014 A CN102722014 A CN 102722014A
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Abstract
The invention provides a color wheel and an assembly method therefore, and a light-emitting device based on the color wheel. The color wheel comprises a first wheel disc, a second wheel disc, a motor in a specific shape, a switchover piece in a specific shape and a compression ring; a second cylindrical surface of an inner surface of the switchover piece and a first cylindrical surface of the surface of the motor are positioned coaxially, the first wheel disc is coaxial with the switchover piece, and the second wheel disc is coaxial with the switchover piece or the motor, so that main parts of the whole color wheel can be coaxial with one another to ensure the dynamic balance of the color wheel in the high-speed rotating process; and simultaneously, the second wheel disc and the switchover piece are tightly compressed and fixed by using pressure between a part of the compression ring on a second fixed surface of the motor, which is protruded out of the second fixed surface, and a first fixed surface of the motor, so that the advantage of convenience in assembly and disassembly is realized on the basis of ensuring the stability of a system.
Description
Technical field
The present invention relates to field of projection display, particularly relate to colour wheel and light-emitting device.
Background technology
In existing projection display technique, has two kinds of main flow schemes, a kind of white light that is to use is incident in an optical filtering colour wheel of being made up of the RGB multi-color filter, along with the rotation of this colour wheel in regular turn with white light filtration the becoming RGB monochromatic light of incident; Another kind is to use a branch of exciting light to be incident in a fluorescence colour wheel that is coated with the multicolor phosphor coating, along with the rotation of this colour wheel excites in regular turn and launches multicolor fluorescence.
In second kind of scheme, often color is gorgeous inadequately for the monochromatic light of fluorescent powder emission, therefore need utilize optical filter its luminescent spectrum to be modified the requirement that reaches demonstration.Because the different in kind of every kind of needed optical filter of monochromatic light, therefore need the color filter wheel of a correspondence to be positioned at the light path rear end of iridescent wheel and be synchronized with the movement with it.A method of expecting the most easily is that two colour wheel layerings are mounted on the same motor.
Yet existing colour wheel structure and package technique thereof all are to be directed against one deck optical filter or phosphor powder layer, do not have disclosing of double-deck colour wheel structure and package technique.
Summary of the invention
The technical problem underlying that the present invention solves is to propose a kind of colour wheel and the light-emitting device that utilizes this colour wheel.
The present invention proposes a kind of colour wheel, comprising:
The first circular wheel disc and second wheel disc;
Pressure ring with rotation symmetric profile of hollow;
Motor with rotation axis; This motor table face comprise along the rotating shaft direction position different and with perpendicular first stationary plane and second stationary plane of rotation axis; First stationary plane is circular; Second stationary plane is circular or circular, and the center of circle of this first stationary plane and second stationary plane is all on rotation axis; This motor surface also is included in first face of cylinder between first stationary plane and second stationary plane on the rotating shaft direction, and first face of cylinder is the axis with the rotation axis; The interior circular diameter D of first stationary plane
In 1, second stationary plane outside diameter D
Outside 2Diameter of section D with first face of cylinder
1 postBetween satisfy below relation:
D
In 1>=D
1 post>=D
Outside 2
Adaptor with rotational symmetry structure of hollow comprises second face of cylinder on the inside surface of this adaptor, also comprise circular three stationary plane vertical with the rotation axes of symmetry of this adaptor; This adaptor comprises that also it is positioned at along the first circular wheel disc stationary plane and the second wheel disc supporting surface two ends and vertical with this rotation symmetry direction of the rotation axes of symmetry direction of this adaptor; The interior circular diameter of the 3rd stationary plane is more than or equal to the diameter of section on second face of cylinder;
Wherein, first wheel disc is adhesively fixed coaxially on the first wheel disc stationary plane of adaptor; Adaptor is set on the surface of motor; And first face of cylinder on second face of cylinder on the inside surface of adaptor and motor surface part at least contact to reach the effect with latter's coaxial positioning, and the 3rd stationary plane on the inside surface of adaptor closely contacts with the first surperficial stationary plane of motor simultaneously; Pressure ring is positioned on second stationary plane of motor, and utilizes mechanical system to exert pressure pressure ring is pressed to second stationary plane; This pressure ring leans out the part of second stationary plane of motor and clamps from both sides with second wheel disc with the second wheel disc supporting surface of adaptor, and makes that second wheel disc and motor are coaxial; The pressure of pressure ring being pressed to second stationary plane through the conduction of second wheel disc the 3rd stationary plane of adaptor and first stationary plane of motor are compressed, make pressure ring, second wheel disc and adaptor all be connected with the motor relative fixed.
The present invention also proposes a kind of light-emitting device, comprising:
Excitation source;
According to above-mentioned colour wheel, uniform rotation under the drive of the motor of this colour wheel in colour wheel, the first round rim circumferencial direction of this colour wheel comprises at least two optical filtering subregions with different spectral characteristics;
The curved reflectors that has through hole between the light path of excitation source and this colour wheel; The exciting light that excitation source sends passes through hole and is incident in a side that contains wavelength conversion layer on second wheel disc in the colour wheel; The excitation wavelength conversion layer makes its emission Stimulated Light; And/or, form emission light towards curved reflectors by the reflection of the reflective of second wheel disc;
Comprise that also light inlet is positioned at the taper square rod that second wheel disc next door, light-emitting window are covered by first wheel disc, the area of the light-emitting window of this taper square rod is greater than light inlet;
Be incident in the light inlet of taper square rod after emission light reflects through curved reflectors, and form emergent light through the optical filtering subregion of transmission first wheel disc after the reflection of taper square rod inside surface.
The present invention also proposes a kind of light-emitting device, comprising:
Excitation source;
According to above-mentioned colour wheel, uniform rotation under the drive of the motor of this colour wheel in colour wheel, the first round rim circumferencial direction of this colour wheel comprises at least two optical filtering subregions with different spectral characteristics;
Be incident in the wavelength conversion layer on second wheel disc behind the beam split optical filter in the exciting light transmission colour wheel that excitation source sends on second wheel disc, the excitation wavelength conversion layer makes its emission Stimulated Light, and/or transmission second wheel disc, forms emission light towards first round dish;
Also comprise the light collecting device between the light path of first wheel disc and second wheel disc, emission light forms emergent light through the optical filtering subregion of back incident and transmission first wheel disc behind the light collecting device.
The present invention also proposes a kind of assemble method of above-mentioned colour wheel, may further comprise the steps:
First wheel disc bonding is fixed on the first wheel disc stationary plane of adaptor;
The adaptor that will have first wheel disc is set in the motor surface; And first face of cylinder on second face of cylinder on the inside surface of adaptor and motor surface part at least contact to reach the effect with latter's coaxial positioning, and the 3rd stationary plane on the inside surface of adaptor closely contacts with the first surperficial stationary plane of motor simultaneously;
Pressure ring is positioned on second stationary plane of motor; And utilize mechanical system to exert pressure pressure ring is pressed to second stationary plane; The part that makes pressure ring lean out second stationary plane of motor is clamped from both sides with second wheel disc with the second wheel disc supporting surface of adaptor, and makes second wheel disc coaxial with motor or adaptor.
In colour wheel of the present invention; Utilize the coaxial positioning on first face of cylinder on second face of cylinder and motor surface of the inside surface of adaptor; And first wheel disc and the coaxial of adaptor and second wheel disc and adaptor or motor coaxial; It is coaxial to make that the critical piece of whole colour wheel is able to, and this has guaranteed the transient equilibrium of colour wheel in high speed rotating; Simultaneously, the part that leans out second stationary plane of the pressure ring on motor second stationary plane is fixed in utilization and the pressure between motor first stationary plane is fixed second wheel disc and adaptor, on the basis that has guaranteed system stability, has realized the advantage of easy accessibility.
Description of drawings
Fig. 1 a is the sectional view of the first embodiment of the present invention;
Fig. 1 b is the assembling explosive view of the first embodiment of the present invention;
Fig. 2 is the sectional view of the second embodiment of the present invention;
Fig. 3 is the sectional view of the third embodiment of the present invention;
Fig. 4 a is the synoptic diagram of the fourth embodiment of the present invention;
Fig. 4 b is the vertical view of second wheel disc in the fourth embodiment of the present invention;
Fig. 4 c is the vertical view of first wheel disc in the fourth embodiment of the present invention;
Fig. 5 is the synoptic diagram of the fifth embodiment of the present invention.
Embodiment
Need to prove that at first in accompanying drawing of the present invention, what Fig. 1 a, Fig. 1 b, Fig. 2 and Fig. 3 represented is the sectional view of the colour wheel of first three specific embodiment of the present invention.Because the most of parts in the colour wheel among the present invention all are rotational symmetric, therefore use sectional view to be enough to describe its whole structure.What deserves to be mentioned is; Bolt in Fig. 1 a, Fig. 1 b, Fig. 2 and Fig. 3 and respective threads hole are not that rotation is symmetrically distributed; But along at least two of sense of rotation center symmetry or asymmetric distributions; Wherein bolt and threaded hole preferably are distributed as symmetrical distribution, and this helps the transient equilibrium of whole colour wheel.
Used the colour wheel structure of the 3rd embodiment in the fourth embodiment of the invention, the colour wheel among Fig. 4 a partly is a sectional view, and remainder is the optical texture synoptic diagram; Used the colour wheel structure of second embodiment among the 5th embodiment, the colour wheel among Fig. 5 partly is a sectional view, and remainder is the optical texture synoptic diagram.
The structure of first embodiment of colour wheel of the present invention is shown in Fig. 1 a, and its assembling explosive view is shown in Fig. 1 b.Colour wheel 100 comprises the first circular wheel disc 121 and second wheel disc 131; The pressure ring 151 that also comprises rotation symmetric profile with hollow.In the present embodiment, pressure ring 151 is circular.
The surface of motor 101 also is included in first face of cylinder 101b between the first stationary plane 101a and the second stationary plane 101c on the rotating shaft direction; First face of cylinder 101b is that the axis is coaxial to guarantee with rotation axis A, and first face of cylinder 101b is connected with the interior circle of the first stationary plane 101a and the cylindrical of the second stationary plane 101c respectively.
In the true qualities wheel construction, first wheel disc 121 is adhesively fixed coaxially on the first wheel disc stationary plane 111c of adaptor 111.Adaptor 111 is set on the surface of motor; And first face of cylinder 101b on second face of cylinder 111b on the inside surface of adaptor and motor surface part at least contact to reach the effect with latter's coaxial positioning, and the 3rd stationary plane 111a on the inside surface of adaptor closely contacts with the first surperficial stationary plane 101a of motor simultaneously.Pressure ring 151 is positioned on the second stationary plane 101c of motor, and utilizes mechanical system to exert pressure pressure ring 151 is pressed to the second stationary plane 101c.This pressure ring leans out the part of the second stationary plane 101c of motor and clamps from both sides with second wheel disc 131 with the second wheel disc supporting surface 111d of adaptor, and makes that second wheel disc and motor are coaxial.In the present embodiment, second wheel disc 131 is set on the motor 101, and the interior circle of second wheel disc 131 and first face of cylinder 101b at least part contact to reach the effect with latter's coaxial positioning.Like this; The pressure of pressure ring 151 being pressed to the second stationary plane 101c compresses the 3rd stationary plane 111a of adaptor and the first stationary plane 101a of motor through the conduction of second wheel disc 131, makes pressure ring 151, second wheel disc 131 and adaptor 11 all be connected with motor 101 relative fixed.
That in the present embodiment, pressure ring 151 is pressed to that the mechanical system of the second stationary plane 101c of motor uses is the threaded hole 161b of bolt 161a and the correspondence on the second stationary plane 101c of motor.Utilize bolt in threaded hole tighten can with pressure ring 151 tightly press to second stationary plane, and this acting force can be maintained.Be appreciated that; The present invention does not limit the concrete implementation for the mechanical system of the second stationary plane 101c of pressure ring 151 being pressed to motor, the bolt in present embodiment, can also use other methods such as elastic pressuring plate; This is a prior art, does not give unnecessary details here.
In the colour wheel of present embodiment; Utilize the coaxial positioning of first face of cylinder 101b on second face of cylinder 111b and motor surface of the inside surface of adaptor 111; The coaxial positioning of second wheel disc 131 and motor 101 and first wheel disc 121 are coaxial with adaptor 111; It is coaxial to make that the critical piece of whole colour wheel is able to, and this has guaranteed the transient equilibrium of colour wheel in high speed rotating.Simultaneously, utilize the part that leans out the second stationary plane 101c and the pressure between the motor first stationary plane 101a that are fixed in the pressure ring on the motor 101 second stationary plane 101c that second wheel disc 131 is fixed with adaptor 111.So only need to use one group of bolt 161a just can therefore on the basis that has guaranteed system stability, realize the advantage of easy accessibility with all component-assembled together.
Can find out from the building block principle of above colour wheel; First face of cylinder 101b is a kind of giving an example between first stationary plane and second stationary plane in the present embodiment; In fact the present invention is to the not restriction of position on first face of cylinder, as long as adaptor can be set on the motor and second face of cylinder of adaptor can utilize first face of cylinder coaxial positioning.Corresponding, on the adaptor the 3rd stationary plane 111a be connected with second face of cylinder 111b also only be a kind of for example, the position that the present invention does not limit between the 3rd stationary plane and second face of cylinder concerns.It can also be seen that from the building block principle of above colour wheel; The 3rd stationary plane of adaptor can with the shared same plane of the first wheel disc stationary plane; This moment, the 3rd stationary plane was positioned at an end of adaptor, and its outside is used for bonding first wheel disc, inboardly closely contacted with first stationary plane of motor being used for.
In the present embodiment, concrete, second wheel disc, 131 surfaces possibly comprise a kind of wavelength conversion layer, also possibly comprise two kinds or above wavelength conversion layer, and they are divided into a plurality of zones along circumferencial direction.As a same reason, first round rim circumferencial direction comprises at least two optical filtering subregions with different spectral characteristics, for example ruddiness filter area and green glow filter area.Preferably, the region quantity that has respectively on two wheel discs is identical, and disposing way is corresponding one by one.
The sectional view of the second embodiment of the present invention is as shown in Figure 2.What the colour wheel 200 of present embodiment was different with first embodiment is; Motor 201 also comprises the 4th face of cylinder 201d; The 4th face of cylinder 201d is the axis with the motor revolving shaft, and with the second stationary plane 201c to being connected, the diameter of the 4th face of cylinder 201d is less than the outside diameter of the second stationary plane 201c.In this embodiment, pressure ring 251 is set on the motor, and the interior circle of pressure ring 251 at least partly contacts the effect that reaches with latter's coaxial positioning with the 4th face of cylinder 201d.Simultaneously, because the existence of the 4th face of cylinder 201d, the shape of the second stationary plane 201c is an annular.
Present embodiment and another difference of first embodiment are that a side that is positioned at the first wheel disc stationary plane 211c of the outside surface of adaptor also comprises the 5th face of cylinder 211e, and the 5th face of cylinder 211e is the axis with the rotation axes of symmetry of adaptor.First wheel disc 221 is set on the 5th face of cylinder 211e, and the interior circle of first wheel disc 221 and the 5th face of cylinder 211e at least part contact to reach the effect with latter's coaxial positioning.
In addition, in the present embodiment, the outside surface of adaptor 211 also comprises the groove 213 of circumference symmetry, is used for bonding a small amount of weight to adjust the rotation transient equilibrium of whole colour wheel.
In sum, because the pressure ring and first wheel disc have obtained better assurance with the coaxial of other parts respectively, so present embodiment has better transient equilibrium with respect to first embodiment; And when the transient equilibrium of colour wheel is still not good, can utilize groove 213 weight that bonds to make transient equilibrium finally reach request for utilization.
In the present embodiment, the volume of adaptor 211 is significantly less than the volume of the adaptor 111 among first embodiment, and this helps to alleviate the weight of adaptor, reduces the load of motor.In fact, the mode that alleviates adaptor weight is diversified, as long as the requirement that the shape on adaptor surface satisfies among the present invention can be used.
It is understandable that present embodiment is with the enforcement that might not combine of a plurality of distinctions of first embodiment, but can implement by single quilt that the performance that this does not influence the effect of each characteristic is not construed as limiting the invention yet.
The sectional view of the third embodiment of the present invention is as shown in Figure 3.Colour wheel 300 and above-mentioned two embodiment differences of present embodiment are that second wheel disc, 331 supporting surfaces, one side that is positioned at of the outside surface of adaptor 311 also comprises three cylindrical face 311f, and this three cylindrical face 311f is the axis with the rotation axes of symmetry of adaptor.Second wheel disc 331 is set on the adaptor 311, and the interior circle of second wheel disc 331 and three cylindrical face 311f at least part contact to reach the effect with latter's coaxial positioning.
Another difference of present embodiment and above-mentioned two embodiment is, pressure ring is not an annular accurately, but comprises a jut 351a in its part that is stuck in motor.It is more concentrated that this jut 351a can make pressure ring 351 press to the pressure of second wheel disc 331, and stability is better.
Also there is difference in the position of the groove among the present embodiment and second embodiment.In the present embodiment; Groove 313 is positioned at the side of first wheel disc 321 away from second wheel disc, and this has been avoided colour wheel parasitic light in use to shine the reliability that on the glue that is used for the weight that bonding adjustment transient equilibrium uses, causes the aging of glue and influence whole colour wheel.
The present invention also proposes a kind of assemble method of colour wheel of the foregoing description description, may further comprise the steps:
A. first wheel disc bonding is fixed on the first wheel disc stationary plane of adaptor;
The adaptor that B. will have first wheel disc is set in the motor surface; And first face of cylinder on second face of cylinder on the inside surface of adaptor and motor surface part at least contact to reach the effect with latter's coaxial positioning, and the 3rd stationary plane on the inside surface of adaptor closely contacts with the first surperficial stationary plane of motor simultaneously;
C. second wheel disc is positioned on the second wheel disc supporting surface of adaptor;
D. pressure ring is positioned on second stationary plane of motor; And utilize mechanical system to exert pressure pressure ring is pressed to second stationary plane; The part that makes pressure ring lean out second stationary plane of motor is clamped from both sides with second wheel disc with the second wheel disc supporting surface of said adaptor, and makes second wheel disc coaxial with motor or adaptor.
Utilize this method assembling colour wheel to have conveniently advantage, if the part processing level is higher simultaneously, installation back transient equilibrium is relatively good, needs adjustment hardly.Certainly, if requirement for dynamic balance than higher, this assemble method can also comprise step:
E. regulate the colour wheel transient equilibrium.Can utilize groove on the adaptor weight that bonds to regulate transient equilibrium; Can certainly make otherwise; For example weight is bonded in other position (for example on the pressure ring), also can removes some materials and regulate transient equilibrium, for example in suitable place boring etc. by the part.This all belongs to prior art, does not give unnecessary details here.
The luminous device structure synoptic diagram of the fourth embodiment of the present invention is shown in Fig. 4 a, and colour wheel 400 has wherein adopted the structure of the 3rd above-mentioned embodiment, but this does not get rid of the possibility of using other colour wheel structure.In colour wheel 400; Second sheave surface comprises a kind of wavelength conversion layer 432; Shown in the vertical view 4b of second wheel disc, comprise also being positioned at the reflective 433 of wavelength conversion layer 432 that wavelength conversion layer 432 adheres on this reflective 433 towards first wheel disc, one side.
In the present embodiment, first wheel disc 421 of colour wheel 400 along the circumferential direction comprises at least two optical filtering subregions 422 and 423 with different spectral characteristics, shown in the vertical view 4c of first wheel disc.In the present embodiment, the outside diameter of first wheel disc is greater than the outside diameter of said second wheel disc.
In the light-emitting device of present embodiment; Also comprise excitation source (not drawing among the figure); And the curved reflectors that has through hole 451 between excitation source and colour wheel 400 light paths; The exciting light 461 that excitation source sends passes through hole 451a and is incident in a side that contains wavelength conversion layer 432 on second wheel disc in the colour wheel; Excitation wavelength conversion layer 432 makes its emission Stimulated Light, and the mixed light that this Stimulated Light or Stimulated Light and unabsorbed exciting light form is formed emission light 462 by reflective 433 reflections of second wheel disc towards curved reflectors 451.Though the mixed light that some Stimulated Light or Stimulated Light and unabsorbed exciting light form can be gone out from through hole 451a outgoing and formed loss, this part loss is very little, in reality, can ignore.
The light-emitting device of present embodiment comprises that also light inlet is positioned at the taper square rod 452 that colour wheel second wheel disc next door, light-emitting window are covered by colour wheel first wheel disc, and the area of the light-emitting window of this taper square rod 452 is greater than light inlet; Why the taper square rod can be placed like this, is that the outside diameter of first wheel disc of colour wheel is greater than the outside diameter of second wheel disc because in the present embodiment.
In the present embodiment; Emission light 462 focuses on the light inlet of taper square rod 452 after by the surface reflection of curved reflectors 451; And obtain shaping and even light after the reflection through taper square rod inside surface; Simultaneously, be incident in first wheel disc 421 of colour wheel then because the taper of square rod is dwindled lighting angle, and the transmission first wheel disc upward filtration light subregion and filtered back formation emergent light 463 by this optical filtering subregion.
At work, along with the rotation of colour wheel, wavelength conversion layer 432 light 461 that is excited in turn excites, and this makes local wavelength's transition material only just generate heat in the moment that is excited, and therefore can effectively reduce the thermal value of local wavelength's transition material.In the present embodiment since on second wheel disc to comprising a kind of wavelength conversion layer 432, the color of therefore launching light 462 is constant.For example, in the present embodiment, the employed material for transformation of wave length of wavelength conversion layer is the YAG yellow fluorescent powder, if exciting light all is absorbed, then launching light 462 is gold-tinteds of stablizing outgoing.Simultaneously, along with the rotation of colour wheel, two subregions 422 with different spectral characteristics and 423 on second wheel disc turn on the light path of emission light 462 successively and filter and launch the emergent light 463 that light 462 obtains different colours.For example in the present embodiment, subregion 422 has the characteristic of transmit red light reflect green light, outgoing ruddiness behind the emission light 462 transmission subregions 422 of yellow; Subregion 423 then has the characteristic of transmit green reflect red, and therefore outgoing green glow behind yellow emission light 462 transmission subregions 422 has so just obtained the emergent light 463 that ruddiness and green glow change in time in proper order.
In fact, also can comprise along the circumferential direction two kinds or above wavelength conversion layer distributing on second wheel disc, the subregion of first wheel disc and second wheel disc can be corresponding, also incomplete correspondence.For example; Exciting light is a blue light, is distributed with three subregions on second wheel disc, red wavelength conversion subregion, green wavelength conversion layer subregion and scattered reflection subregion; With it one to one, on first wheel disc, be distributed with red optical filtering subregion, green optical filtering subregion and blue optical filtering subregion.When exciting light is incident in red wavelength conversion subregion and green wavelength conversion subregion; Emission light 462 is respectively red and green stimulated luminescence; They are incident in redness optical filtering subregion and green optical filtering subregion on first wheel disc respectively, and are obtained more bright-coloured redness of color and green emergent light 463 by its filtration.When blue excitation light was incident in the scattered reflection subregion on second wheel disc, blue light was directly reflected and is formed blue emission light 462, and the blueness optical filtering subregion that this blue emission light can be incident on first wheel disc obtains the more bright-coloured blue emergent light 463 of color.It is luminous that this light-emitting device just can arrive the sequential of red-green-blue like this.In fact, when emission light 462 itself just can satisfy request for utilization, the optical filtering subregion on corresponding first wheel disc can not be provided with filter layer, hyaline layer perhaps only is set or is coated with the hyaline layer of anti-reflection film.
In this example; Red wavelength conversion subregion on second wheel disc and green wavelength conversion subregion can use with a kind of yellow wavelengths transition material (for example YAG fluorescent powder), cooperate first wheel disc with three optical filtering zones of RGB can obtain red-green-blue sequential emergent light 463 equally like this.It is thus clear that first wheel disc might not be corresponding one by one with subregion on second wheel disc.
The structure of the fifth embodiment of the present invention is as shown in Figure 5.The light-emitting device of present embodiment comprises excitation source (not drawing among the figure) and colour wheel 500, and the structure of this colour wheel 500 is identical with second embodiment, but this does not limit the use of the colour wheel of other structure.In colour wheel 500; Second wheel disc 533 comprises at least a wavelength conversion layer 532, comprises that also being positioned at wavelength conversion layer 532 is used for exciting light 561 that the transmission excitation source the sends beam split optical filter 533 of the stimulated luminescence of reflective wavelength-converting layer simultaneously in first wheel disc, 563 1 sides dorsad.Uniform rotation under the drive of the motor of colour wheel 500 in colour wheel, its first wheel disc 521 along the circumferential direction comprise at least two optical filtering subregions with different spectral characteristics.
In the present embodiment; Be incident in wavelength conversion layer 532 behind the beam split optical filter 533 in the exciting light 561 transmission colour wheels that excitation source sends on second wheel disc; Excitation wavelength conversion layer 532 makes its emission Stimulated Light; Stimulated Light can be reflected by it towards the part of beam split optical filter 533 outgoing, so the mixed light of Stimulated Light or Stimulated Light and unabsorbed exciting light forms emission light 562 towards first wheel disc 521.This emission light 562 is positioned at light collecting device 552 between the light path of first wheel disc and second wheel disc and collects the optical filtering subregion of back incidents and transmission first wheel disc and form emergent light 563.
Identical with the 4th embodiment, along with the rotation of colour wheel, it is luminous that the light-emitting device of present embodiment also can send the sequential of multiple color.Understandable; First wheel disc of the 4th embodiment and the composition of second wheel disc, working method, corresponded manner can be applied to present embodiment equally; There are some differences to be; In the present embodiment, form emission light 562 if hope the direct outgoing of exciting light, then the corresponding subregion of second wheel disc is not provided with wavelength conversion layer and keeps transparent or semitransparent.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (15)
1. a colour wheel is characterized in that, comprising:
The first circular wheel disc and second wheel disc;
Pressure ring with rotation symmetric profile of hollow;
Motor with rotation axis; This motor table face comprise along said rotating shaft direction position different and with perpendicular first stationary plane and second stationary plane of rotation axis; First stationary plane is circular; Second stationary plane is circular or circular, and the center of circle of this first stationary plane and second stationary plane is all on said rotation axis; The outside diameter of second stationary plane is less than the outside diameter of said pressure ring, and the outside diameter of first stationary plane is greater than the outside diameter of second stationary plane; This motor surface also comprises first face of cylinder, and said first face of cylinder is the axis with said rotation axis;
Adaptor with rotational symmetry structure of hollow comprises second face of cylinder on the inside surface of this adaptor, also comprise circular three stationary plane vertical with the rotation axes of symmetry of this adaptor; This adaptor comprises that also it is positioned at along the first wheel disc stationary plane and the second wheel disc supporting surface two ends and vertical with this rotation symmetry direction of the rotation axes of symmetry direction of this adaptor;
Wherein, said first wheel disc is adhesively fixed coaxially on the first wheel disc stationary plane of said adaptor; Said adaptor is set on the surface of said motor; And first face of cylinder on second face of cylinder on the inside surface of adaptor and motor surface part at least contact to reach the effect with latter's coaxial positioning, and the 3rd stationary plane on the inside surface of adaptor closely contacts with the first surperficial stationary plane of motor simultaneously; Said pressure ring is positioned on second stationary plane of motor, and utilizes mechanical system to exert pressure pressure ring is pressed to second stationary plane; This pressure ring leans out the part of second stationary plane of motor and clamps from both sides with second wheel disc with the second wheel disc supporting surface of said adaptor, and makes second wheel disc coaxial with motor or adaptor; Described pressure of pressure ring being pressed to second stationary plane compresses the 3rd stationary plane of adaptor and first stationary plane of motor through the conduction of second wheel disc, makes pressure ring, second wheel disc and adaptor all be connected with the motor relative fixed.
2. a kind of colour wheel according to claim 1 is characterized in that, said second wheel disc comprises at least a wavelength conversion layer.
3. a kind of colour wheel according to claim 2 is characterized in that, said second wheel disc comprises also and be positioned at the reflective of said wavelength conversion layer towards first wheel disc, one side that said wavelength conversion layer adheres on this reflective.
4. a kind of colour wheel according to claim 2; It is characterized in that said second wheel disc also comprises and is positioned at said wavelength conversion layer dorsad in the exciting light that is used for the said material for transformation of wave length of transmission of a side of first wheel disc beam split optical filter of the stimulated luminescence of reflection wavelength transition material simultaneously.
5. according to any described a kind of colour wheel in the claim 1 to 4, it is characterized in that rim circumferencial direction of the said first round comprises at least two optical filtering subregions with different spectral characteristics.
6. a kind of colour wheel according to claim 1; It is characterized in that; First face of cylinder on said motor surface is upper between first stationary plane and second stationary plane at the revolution direction of principal axis; And be connected with the interior circle of first stationary plane and the cylindrical of second stationary plane respectively, the diameter on the interior circular diameter of first stationary plane, the outside diameter of second stationary plane and first face of cylinder all equates; Second face of cylinder of said adaptor inside surface is connected with the 3rd stationary plane simultaneously, and second face of cylinder diameter equates with the interior circular diameter of the 3rd stationary plane.
7. a kind of colour wheel according to claim 1 is characterized in that, said second wheel disc is set on the motor, and the interior circle of second wheel disc and first face of cylinder at least part contact to reach the effect with latter's coaxial positioning.
8. a kind of colour wheel according to claim 1 is characterized in that, the second wheel disc supporting surface, one side that is positioned at of the outside surface of said adaptor also comprises the three cylindrical face, and this three cylindrical face is the axis with the rotation axes of symmetry of adaptor; Said second wheel disc is set on the adaptor, and the interior circle of second wheel disc and three cylindrical face at least part contact to reach the effect with latter's coaxial positioning.
9. a kind of colour wheel according to claim 1; It is characterized in that said motor also comprises the 4th face of cylinder, the 4th face of cylinder is the axis with the motor revolving shaft; And be connected with second stationary plane, the diameter on the 4th face of cylinder is less than the outside diameter of second stationary plane; Said pressure ring is set on the said motor, and the interior circle of pressure ring and the 4th face of cylinder at least part contact to reach the effect with latter's coaxial positioning.
10. a kind of colour wheel according to claim 1 is characterized in that, the first wheel disc stationary plane, one side that is positioned at of the outside surface of said adaptor also comprises the 5th face of cylinder, and the 5th face of cylinder is the axis with the rotation axes of symmetry of adaptor; Said first wheel disc is set on the 5th face of cylinder, and the interior circle of first wheel disc and the 5th face of cylinder at least part contact to reach the effect with latter's coaxial positioning.
11. a kind of colour wheel according to claim 1 is characterized in that, there is the groove of circumference symmetry in the outside surface of said adaptor, is used for bonding a small amount of weight to adjust the rotation transient equilibrium of whole colour wheel.
12. a light-emitting device is characterized in that, comprising:
Excitation source;
Colour wheel according to claim 3, and at the outside diameter of first wheel disc described in this colour wheel outside diameter greater than said second wheel disc, the first round rim circumferencial direction of this colour wheel comprises at least two optical filtering subregions with different spectral characteristics simultaneously; Uniform rotation under the drive of the motor of this colour wheel in colour wheel, the first round rim circumferencial direction of this colour wheel comprises at least two optical filtering subregions with different spectral characteristics;
The curved reflectors that has through hole between the light path of excitation source and this colour wheel; The exciting light that said excitation source sends passes said through hole and is incident in a side that contains wavelength conversion layer on second wheel disc in the colour wheel; The excitation wavelength conversion layer makes its emission Stimulated Light; The mixed light that this Stimulated Light or Stimulated Light and unabsorbed exciting light form is formed emission light by the reflection of the reflective of second wheel disc towards curved reflectors;
Comprise that also light inlet is positioned at the taper square rod that colour wheel second wheel disc next door, light-emitting window are covered by colour wheel first wheel disc, the area of the light-emitting window of this taper square rod is greater than light inlet;
Be incident in the light inlet of said taper square rod after said emission light reflects through curved reflectors, and form emergent light through the optical filtering subregion of transmission first wheel disc after the reflection of taper square rod inside surface.
13. a light-emitting device is characterized in that, comprising:
Excitation source;
Colour wheel according to claim 4, uniform rotation under the drive of the motor of this colour wheel in colour wheel, the first round rim circumferencial direction of this colour wheel comprises at least two optical filtering subregions with different spectral characteristics;
Be incident in the wavelength conversion layer on second wheel disc behind the beam split optical filter in the exciting light transmission colour wheel that said excitation source sends on second wheel disc, the excitation wavelength conversion layer makes its emission Stimulated Light, and/or transmission second wheel disc, forms emission light towards first round dish;
Also comprise the light collecting device between the light path of first wheel disc and second wheel disc, said emission light forms emergent light through the optical filtering subregion of back incident and transmission first wheel disc behind the light collecting device.
14. the assemble method like claim 1 described colour wheel is characterized in that, may further comprise the steps:
First wheel disc bonding is fixed on the first wheel disc stationary plane of adaptor;
The adaptor that will have first wheel disc is set in the motor surface; And first face of cylinder on second face of cylinder on the inside surface of adaptor and motor surface part at least contact to reach the effect with latter's coaxial positioning, and the 3rd stationary plane on the inside surface of adaptor closely contacts with the first surperficial stationary plane of motor simultaneously;
Second wheel disc is positioned on the second wheel disc supporting surface of adaptor;
Pressure ring is positioned on second stationary plane of motor; And utilize mechanical system to exert pressure pressure ring is pressed to second stationary plane; The part that makes pressure ring lean out second stationary plane of motor is clamped from both sides with second wheel disc with the second wheel disc supporting surface of said adaptor, and makes second wheel disc coaxial with motor or adaptor.
15. according to claim 14 described colour wheel assemble methods, it is characterized in that, also comprise the dynamically balanced step of regulating colour wheel.
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| CN201210162311.9A CN102722014B (en) | 2012-05-23 | 2012-05-23 | Color wheel and light-emitting device |
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| CN201210162311.9A CN102722014B (en) | 2012-05-23 | 2012-05-23 | Color wheel and light-emitting device |
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Denomination of invention: Color wheel and light-emitting device Effective date of registration: 20160304 Granted publication date: 20140604 Pledgee: China Co truction Bank Corp Shenzhen branch Pledgor: Shenzhen Yili Ruiguang Technology Development Co.,Ltd. Registration number: 2016440000007 |
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Effective date of registration: 20190225 Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee after: Shenzhen Guangfeng Polytron Technologies Inc Address before: 518057 Guangdong Province Shenzhen Nanshan Science Park South 12 Road Fangda Building Third Floor Deductive Ruiguang Technology Development Co., Ltd. Patentee before: Shenzhen Yili Ruiguang Technology Development Co.,Ltd. |