The Application No. 201110358524.4 that the application submitted for applicant on November 12nd, 2011, denomination of invention
For the divisional application of " colour wheel, its assemble method and the light source using the colour wheel ".
Embodiment
Below, the present invention is expanded on further in the specific embodiment with reference to shown in accompanying drawing.
Fig. 2 and Fig. 3 are referred to, Fig. 2 is the profile of the color block component first embodiment of the present invention, and color block component includes color
The motor 1 that wheel 2 and driving colour wheel 2 rotate.The colour wheel 2 includes the first basic unit 23 and the second basic unit 21 being stacked, and
The optical wavelength converting layer 22 and distance piece being clipped between the first basic unit 23 and the second basic unit 21.
Optical wavelength converting layer 22 is overall in annular shape, including at least one section (not indicating), and being set on each section can
Excite the optical wavelength conversion material of the stimulated luminescence of the color different from other sections.Optical wavelength conversion material include fluorescent material,
Fluorescent dye, nano material etc..The exciting light that optical wavelength converting layer 22 can also include at least one no material for transformation of wave length is saturating
Penetrate section.
Colour wheel generally comprises transmission-type colour wheel and reflective colour wheel.When from transmission-type colour wheel, exciting light biography is arranged on
Transmission exciting light can be selected and reflect the first optical filter of stimulated luminescence by broadcasting the first basic unit 23 on path;Second basic unit 21 can
From TEM investigation and the stimulated luminescence of the different colours of different wave length conversion section on colour wheel or corresponding no material for transformation of wave length
The exciting light for exciting transmitance region the second optical filter.
When from reflective colour wheel, it is arranged on and excites the second basic unit 21 on propagation path of light that transmission exciting light can be selected
With the 3rd optical filter of the stimulated luminescence of the different colours of corresponding colour wheel difference section, reflector plate can be selected in the first basic unit 23.
First basic unit 23 and the second basic unit 21 can not also possess optical filtering or light-reflecting property, now, can be as needed the
Optical filter or reflector plate are set up outside one basic unit or the second basic unit.
The two sides of distance piece are parallel to each other.Distance piece should select that hardness is big, is unlikely to deform and material that compressive resistance is strong, example
Such as sheet metal.Distance piece is set with optical wavelength converting layer 22 with layer, and the thickness of distance piece is not less than optical wavelength converting layer 22
Thickness.It is close to the first basic unit 23 and the second basic unit 21 respectively in distance piece two sides.In the present embodiment, the two sides point of distance piece
The first basic unit 23 and the second basic unit 21 are not bonded to by mode for dispensing glue.Fig. 3 is refer to, the distance piece includes being located at light wave
First distance piece 25 of long conversion layer outer ring and the second distance piece 24 positioned at optical wavelength converting layer center.The He of first distance piece 25
The thickness of second distance piece 24 is identical, forms air-gap 26 therebetween, and optical wavelength converting layer 22 is located in the air-gap 26.Institute
The thickness for stating the first distance piece 25 and the second distance piece 24 is 0.02~0.30 millimeter.
Generally, the thickness of distance piece is more than the thickness of optical wavelength converting layer 22.Positioned at the first basic unit 23 and second
Optical wavelength converting layer between basic unit 21 may be connected to the first basic unit 23 or the second basic unit 21.When the thickness of distance piece is more than light wave
During the thickness of long conversion layer, if optical wavelength converting layer is connected to the first basic unit 23 away from outgoing optical interface, turn in optical wavelength
To change between the basic unit 21 of layer 22 and second and form air-gap, the presence of the air-gap not only improves the radiating of optical wavelength converting layer 22,
The stimulated luminescence that and can is emitted the wide-angle incided in air-gap by optical wavelength converting layer conversion enters the second basic unit
Reflecting into the emergent light outgoing of low-angle afterwards makes the etendue of stimulated luminescence diminish, bright so as to improve the outgoing of stimulated luminescence
Degree.The big I of air-gap is regulated and controled by adjusting the thickness difference between distance piece and optical wavelength converting layer 22.
When the thickness of distance piece is more than the thickness of optical wavelength converting layer, if optical wavelength converting layer 22 is connected to the second basic unit
21, then form air-gap between the basic unit 23 of optical wavelength converting layer 22 and first.The presence of the air-gap has to be turned beneficial to optical wavelength
Change the radiating of layer 22.
The present embodiment show the situation that optical wavelength converting layer is connected to the second basic unit 21, and basis specifically makes in practical application
It can also select optical wavelength converting layer being connected to the first basic unit 23 with demand or be not attached to any basic unit.Work as light wavelength conversion
, can be by applying central glue by the first basic unit 23, second in the circle ring center of optical wavelength converting layer 22 when layer 22 is not connected with basic unit
The inner ring of basic unit 21 and optical wavelength converting layer is connected so as to ensure that optical wavelength converting layer 22 will not alter in either direction in the colour wheel
It is dynamic;In the present embodiment, because the center of optical wavelength converting layer 22 is provided with the second distance piece 24, central glue is coated in the outer of the second distance piece
Layer.The connection of the basic unit 23 of optical wavelength converting layer 22 and first or the second basic unit 21 can be by mode for dispensing glue by optical wavelength converting layer
It is bonded in the first basic unit 23 or the second basic unit 21.
Fig. 4~Fig. 6, Figure 10~Figure 11 are the embodiment of the first distance piece 25 in the present embodiment.Positioned at optical wavelength
The first distance piece 25 of the outer ring of conversion layer 22 is overall in circular or similar circular, including overall annulus as shown in Figure 4, by
Multiple first fragments mosaicings shown in Fig. 6 form and three kinds of situations of not closed circular ring plate provided with opening.First interval
Piece inner space size is depending on actual conditions, generally, described circular or similar the first circular distance piece 25
Internal diameter be equal to optical wavelength converting layer 22 external diameter.
The cross section of the first fragment shown in Fig. 6 is annulus section, and in practical application, the cross section of the first fragment can also be
Other shapes, such as the concave polygon such as the convex polygon such as triangle, trapezoidal, square, star, circular, ellipse, crescent
The closed figure surrounded Deng camber line, and closed figure collectively formed by straightway and camber line etc..Existed by the first fragments mosaicing
Size, the shape of the first fragment in the splicing annulus formed together can be different.First be made up of multiple first fragments
Distance piece includes at least two first fragments;It can abut or separate mutually between the first adjacent fragment.
Dispensing is convenient during in order to which the first distance piece 25 being assembled into first and second basic unit 23,21, can the overall annulus,
It is overall through heading on the first basic unit 23 and the two sides of the second basic unit 21 open up the first aperture not on closed circle or the first fragment
The example that the first aperture is opened up on annulus refer to Fig. 5, and the example that the first aperture is not opened up on closed circle refer to Figure 11;Institute
State the first aperture a diameter of 1.0~1.5 millimeters.
Fig. 7~Fig. 9, Figure 12~Figure 15 are the embodiment of the second distance piece of the present embodiment 24.Turn positioned at optical wavelength
Changing the second distance piece 24 of the inner ring of layer 22 includes solid disk as shown in Figure 7, shown in hollow disk-shaped, Figure 12 as shown in Figure 8
Hollow disk-shaped and the second fragment for open up the solid disk 12 of otch from the center of circle, opening up otch shown in Figure 15 from the center of circle (is not schemed
Show) several situations.The shape of the second fragment is not limited in the present embodiment;When the second distance piece 24 is the second fragment, bag
The situation that the second distance piece 24 is directly constituted by second fragment is included, also includes the fragment of two or more second and is combined jointly
Form the situation of the second distance piece;When collectively constituting the second distance piece by multiple second fragments, form between second together
Partition size, shape can be different.Generally, the size of the second distance piece 24 and the internal diameter phase of optical wavelength converting layer 22
Match somebody with somebody;When the second distance piece 24 is solid disk or is hollow disk-shaped, the diameter of the second distance piece 24 is equal to optical wavelength converting layer 22
Internal diameter.
Dispensing is convenient during in order to which the second distance piece 24 being assembled into first and second basic unit 23,21, can it is described it is hollow disk-shaped,
Solid disk, the solid disk for opening up from the center of circle otch, open up from the center of circle the hollow disk-shaped of otch, on the second fragment through heading on
First basic unit 23, the two sides of the second basic unit 21 open up second orifice, it is hollow disk-shaped on open up the example of second orifice and refer to
Fig. 9, the example that the solid disk of otch is opened up from the center of circle refer to Figure 13, and the hollow disk-shaped example that otch is opened up from the center of circle please
With reference to figure 14;A diameter of 1.0~1.5 millimeters of the second orifice.
Fixation between distance piece and first and second basic unit 23,21 can also have other in addition to the point glue sticking being previously mentioned
Fixed form, for example, stator is mechanically attached into first and second basic unit 23,21, or in the outer of first and second basic unit 23,21
Zhou Zengjia fixing devices etc..
In the present embodiment, by setting thickness to be not less than the distance piece of optical wavelength converting layer, the two sides point of the distance piece
The first basic unit 23 and the second basic unit 21 are not headed on, because the two sides of distance piece are parallel to each other, therefore the first basic unit and the second base
Layer is also parallel to each other, so as to equal with the spacing of each position between the first basic unit and the second basic unit of color wheel so that the first base
Layer can clamp optical wavelength converting layer relatively stablely with the second basic unit, so as to ensure to have in the colour wheel course of work that relatively stablizes to go out
Light efficiency.Can also be by adjusting the spacing size between first and second basic unit 23,21 of distance piece thickness adjustment.Moreover, pass through
The setting of inside and outside two circles distance piece, makes each several part of the first basic unit and the second basic unit obtain than more uniform support force, Ke Yiyou
Effect avoids first and second basic unit 23,21 of the more crisp material such as tool pressure break glass in assembling process.
Refer to Figure 16 and Figure 17, Figure 16 is the profile of the color block component second embodiment of the present invention, color block component bag
The motor 1 for including colour wheel 2 and driving colour wheel 2 to rotate.The colour wheel 2 includes the first basic unit 23 and the second basic unit 21 being stacked,
And it is clipped in optical wavelength converting layer 22 and distance piece between the first basic unit 23 and the second basic unit 21.Optical wavelength converting layer 22 connects
To the second basic unit 21, the first basic unit 23 and the second basic unit 21 are close in distance piece two sides respectively.
Different from first embodiment, the optical wavelength converting layer 22 in the present embodiment is incomplete annular shape.Optical wavelength turns
Changing layer 22 includes at least one section (not shown), and setting on each section can excite the color different from other sections to be excited
Luminous optical wavelength conversion material.In second basic unit 21 not by optical wavelength converting layer cover region be transmissive exciting light swash
Luminous transmission area (not indicating).
Figure 16 and Figure 17 are refer to, the distance piece includes the first distance piece 25 and the second distance piece 24.One scattering sheet 26
It is placed on and excites transmitance region, scattering sheet 26 and optical wavelength converting layer 22 is spliced to form annulus, and the annulus is positioned at the first interval
Between the distance piece 24 of piece 25 and second;The thickness of scattering sheet 26 is not more than the thickness of distance piece 24,25.
First distance piece 25 is the periphery of the annulus spliced positioned at scattering sheet 26 and optical wavelength converting layer 22;Between second
Partition 24 is the inside of the annulus spliced positioned at scattering sheet 26 and optical wavelength converting layer 22.First distance piece 25 and the second distance piece
24 specific implementation means are consistent in implementing with the first of color block component of the present invention.
What both examples above was all enumerated is the example of the circular colour wheel to move in a circle, in order to obtain more excellent use
Effect adds inside and outside two circles distance piece between first and second basic unit of colour wheel, not only makes first and second basic unit of same color wheel
Between spacing at diverse location it is equal and spacing dimension can be adjusted by adjusting the thickness of distance piece;Simultaneously can be in assembling
The basic unit of tool pressure break first and second is avoided, improves yield rate.So in practical application, in order that first and second basic unit with color wheel
Between spacing at diverse location it is equal, it is only necessary to use one in first and second distance piece mentioned above.Inside,
In outer two distance pieces, the second distance piece of outer ring is preferably placed at, because outer ring distance piece can be provided preferably between two basic units
Even spacing.
Similarly, distance piece can be applied in the rectangle colour wheel of linear movement.For example increase on the periphery of rectangle colour wheel
The distance piece of one substantially rectangular frame-shaped, the distance piece is clipped in the periphery of wavelength conversion layer between first and second basic unit, just
The equal requirement of spacing between the first basic unit and the second basic unit of same rectangle colour wheel at diverse location can be reached.
Figure 18 is refer to, the present invention also provides a kind of assemble method of colour wheel, entered by taking the colour wheel of first embodiment as an example
Row explanation.
Colour wheel includes the first basic unit 23, the second basic unit 21, optical wavelength converting layer 22, distance piece.Distance piece is included between first
The distance piece 25 of partition 24 and second.Figure 16 is the flow chart of colour wheel assemble method first embodiment.Comprise the following steps:
S1, by the one side of the distance piece and first base adhesive.
Wherein, the opening position at the close edge one side of the first distance piece being bonded in the first basic unit, the second interval
The one side of piece is bonded in the center position of the first basic unit;By the one side of the first distance piece, the one side of the second distance piece
It is bonded to respectively in the bonding process of the first basic unit, the thickness of control bonding glue is no more than 0.01 millimeter.
S2, the optical wavelength converting layer is bonded to second basic unit.
In this step, when optical wavelength converting layer being bonded into the second basic unit by mode for dispensing glue.During dispensing, control bonding
A diameter of 1.0~1.5 millimeters of point.
In fact, points of the step S1 and step S2 without priority, while carry out or change precedence.
S3, by the another side of the distance piece and second base adhesive, the distance piece and optical wavelength converting layer
It is distributed with layer.
In the step, by the another side of first distance piece bonding on the second substrate close to the opening position at edge,
The another side of second distance piece is bonded in the center position of the second basic unit;Shape between first distance piece and the second distance piece
Into air-gap, optical wavelength converting layer is located in the air-gap.By the another side of the first distance piece, the second distance piece it is another
Side is bonded in the bonding process of the second basic unit respectively, and the thickness of control bonding glue is no more than 0.01 millimeter.
Compared with prior art, colour wheel, the gap between the first basic unit 23 and the second basic unit 21 are assembled by the above method
Uniformly and assemble method is simple, and assembling process is controllable, and packaging efficiency is higher.
The first embodiment of above-mentioned colour wheel assemble method is that optical wavelength converting layer 22 is connected to the situation of the first basic unit 23.
The first basic unit in foregoing colour wheel assemble method and the second basic unit are exchanged, then are connected to the second basic unit for optical wavelength converting layer 22
Embodiment.
The present invention also provides a kind of embodiment of light source.
The light source includes excitation source and the colour wheel as described in above-mentioned embodiment.The excitation source can be laser light
Source;It can also be semiconductor light source, such as light emitting diode (Light Emitting Diode, LED) light source.The excitation source
Emit beam and be incident to colour wheel to produce exciting light.
Compared with prior art, the present invention is by setting thickness to be not less than the distance piece of optical wavelength converting layer, the distance piece
Two sides head on the first basic unit and the second basic unit respectively, because the two sides of distance piece are parallel to each other, thus the first basic unit with
Second basic unit is also parallel to each other, so as to equal with the spacing of each position between the first basic unit and the second basic unit of color wheel so that
First basic unit and the second basic unit can clamp optical wavelength converting layer relatively stablely, more steady so as to ensure to have in the colour wheel course of work
Fixed light extraction efficiency.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.