CN108445700A - Laser projection light source and laser projection device - Google Patents
Laser projection light source and laser projection device Download PDFInfo
- Publication number
- CN108445700A CN108445700A CN201710660359.5A CN201710660359A CN108445700A CN 108445700 A CN108445700 A CN 108445700A CN 201710660359 A CN201710660359 A CN 201710660359A CN 108445700 A CN108445700 A CN 108445700A
- Authority
- CN
- China
- Prior art keywords
- fluorescence
- laser
- light
- module
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
Abstract
The disclosure provides a kind of laser projection light source and laser projection device applied to laser technology field, and laser projection light source includes laser light source module, the first receipts optical module, fluorescent wheel, the second receipts optical module and converging module.Laser light source module emits laser.Laser receives optical module by first.Fluorescent wheel has the first side and the second side.Fluorescent wheel receives laser and switched laser is the first fluorescence and the second fluorescence.First side receives laser and the first fluorescence of transmitting.The second side emits the second fluorescence.First fluorescence is received by first after optical module and the second fluorescence receives optical module by second, and the optical axis of the first fluorescence and at least one of the second fluorescence can be transferred, and the turnover number of the optical axis of the first fluorescence and the second fluorescence and be at least twice.Converging module receives the first fluorescence and the second fluorescence that optical module is received by second and transmitting closing light for receiving optical module by first.The brightness for the closing light that laser projection light source is emitted can be substantially improved in disclosed technique scheme.
Description
Technical field
The present invention relates to laser technology fields, are filled in particular to a kind of laser projection light source and a kind of laser projection
It sets.
Background technology
With the progress that lasing light emitter is developed, the size of lasing light emitter is more done smaller, and power and brightness are more and more better, therefore with sharp
Light is also just more and more common as the projector of light source.
In order to further improve every characteristic of laser projection light source, related field is there's no one who doesn't or isn't painstakingly developed.How
A kind of laser projection light source with preferable characteristic is provided, it is real to belong to one of current important research and development project, also become currently associated neck
There is an urgent need for improved targets in domain.
Invention content
The technical embodiment of the present invention is to provide a kind of laser projection light source, to promote closing light that it is emitted
Brightness.
According to an embodiment of the present invention, a kind of laser projection light source includes an at least first laser source module, the first receipts
Optical module, fluorescent wheel, second receive optical module and converging module.First laser source module emits first laser.First laser is logical
Cross the first receipts optical module.Fluorescent wheel has the first side and the second side.Fluorescent wheel receives first laser, and converts first laser as the
One fluorescence and the second fluorescence.First side receives the first laser for receiving optical module by first and the first fluorescence of transmitting.The second side is sent out
Penetrate the second fluorescence.After first fluorescence receives optical module and the second fluorescence by the second receipts optical module by first, the first fluorescence and the
The optical axis of at least one of two fluorescence can be transferred, and the turnover number of the optical axis of the first fluorescence and the second fluorescence and be at least
Twice.Converging module receives the first fluorescence for receiving optical module by first and the second fluorescence and the progress that optical module is received by second
Closing light and form closing light.In one or more embodiments of the present invention, first laser is blue light.
In one or more embodiments of the present invention, the first fluorescence and the second fluorescence have same frequency spectrum.
In one or more embodiments of the present invention, the luminance difference of the first fluorescence and the second fluorescence is less than 5%.
In one or more embodiments of the present invention, the first fluorescence and the second fluorescence are feux rouges, green light, yellow light or its group
It closes.
In one or more embodiments of the present invention, first, which receives optical module, includes an at least dichronic mirror.Dichronic mirror makes to swash
Light passes through dichronic mirror and the first fluorescence of reflection.
In one or more embodiments of the present invention, first receives optical module assembles module comprising at least one.Assemble module
Assemble the first fluorescence.
In one or more embodiments of the present invention, second, which receives optical module, includes an at least speculum.Speculum reflects
Second fluorescence.
In one or more embodiments of the present invention, second receives optical module assembles module comprising at least one.Assemble module
Assemble the second fluorescence.
In one or more embodiments of the present invention, converging module includes integration rod (Integration Rod) and light
Road sorting module.Integration rod has opening and transmitting closing light.Light path sorting module makes the first fluorescence and the second fluorescence pass through light
After the sorting module of road, the optical axis of the first fluorescence is identical as the direction of the optical axis of the second fluorescence, and makes the first fluorescence and the second fluorescence
Into opening.
In one or more embodiments of the present invention, laser projection light source also includes second laser source module.Second swashs
Light source module emits second laser, and wherein second laser enters converging module.
In one or more embodiments of the present invention, first laser by fluorescent wheel, make first laser from the second side from
It opens and enters the second receipts optical module, second receives the direction that optical module changes the optical axis of first laser, and first laser is made to leave
Enter converging module after second receipts optical module.
In one or more embodiments of the present invention, fluorescent wheel includes at least one first fluorescence coating, and the first fluorescence coating turns
It is the first fluorescence and the second fluorescence to change first laser.
In one or more embodiments of the present invention, fluorescent wheel also includes an at least transparent substrate.First fluorescence coating is set
It is placed on transparent substrate.
In one or more embodiments of the present invention, also there is fluorescent wheel an at least first part, the first fluorescence coating to set
It is placed in first part.
In one or more embodiments of the present invention, fluorescent wheel also has at least a second part, wherein second part
To be transparent, and first part receives first laser from second part according to different sequential.
In one or more embodiments of the present invention, it also includes at least one that fluorescent wheel, which also has Part III, fluorescent wheel,
Second fluorescence coating, the second fluorescence coating are set to Part III, and wherein first part receives first from Part III according to different sequential
Laser, the first fluorescence coating, according to different timing conversion first lasers, make the first fluorescence coating and the second fluorescence coating institute from the second fluorescence coating
The light closing light of transmitting becomes the first fluorescence and the second fluorescence.
According to another embodiment of the present invention, a kind of laser projection device includes that laser projection light source above-mentioned, wavelength select
Select device, at least an image module and projection module.Wavelength selector receive closing light, and emit the first coloured light, the second coloured light with
And third coloured light.Image module receives the first coloured light, the second coloured light and third coloured light, and generates an at least image light.Projection
Module receives image light, and generates an at least projected light.
In one or more embodiments of the present invention, the quantity of image module is three, and image module receives the respectively
A shade, the second coloured light and third coloured light and the first color image light, the second color image light and third color image are generated respectively
Light becomes image light after the first color image light, the second color image light and third color image actinic light.
In one or more embodiments of the present invention, the quantity of image module is one, wavelength selector according to it is different when
Sequence emits the first coloured light, the second coloured light and third coloured light, image module according to different sequential receive the first coloured light, the second coloured light with
And third coloured light, and image light is generated according to different sequential, projection module receives image light according to different sequential, and is produced according to different sequential
Raw projected light.
The above embodiment of the present invention omits the design in reflecting layer by the fluorescent wheel of laser projection light source, thus makes one
First side of the fluorescence autofluorescence wheel divided is projected, and the second side of the fluorescence autofluorescence wheel of another part projects, i.e., fluorescence can be by glimmering
The two-sided light extraction of halo.Then, because being not provided with reflecting layer, reflecting layer absorb part fluorescence the case where will not occur, close
The fluorescence that optical module is received can increase therewith, thus the brightness for the closing light that laser projection light source is emitted can be substantially improved.
Furthermore, it is understood that after fluorescent powder emits fluorescence around using itself as starting point, fluorescence may be by other glimmering
Light powder absorbs, and there is a situation where fluorescence self-absorption shines, thus the light emission rate of fluorescent wheel is made to decline.Because of laser projection light source
Fluorescent wheel omit reflecting layer design, therefore fluorescence reach fluorescent wheel the first side or the second side after, fluorescence will directly from
Open fluorescence coating.Then, average path length of the fluorescence in fluorescence coating will be shorter, and fluorescence coating is less likely to occur fluorescence self-absorption
It shines, therefore will effectively promote the luminous efficiency of fluorescence coating.
By aforementioned two kinds of mechanism, the brightness for the closing light that laser projection light source is emitted will be substantially improved.In some realities
It applies in mode, compared to conventional laser projection light source, the brightness for the closing light that laser projection light source is emitted will promote about 20%
To 30%.
Description of the drawings
Fig. 1 shows the schematic diagram of the laser projection light source and its light path according to an embodiment of the present invention.
Fig. 2 shows the part schematic side views of the fluorescent wheel according to an embodiment of the present invention.
Fig. 3 shows the part schematic side view of the traditionally fluorescent wheel of laser projection light source.
Fig. 4 to Fig. 9 shows the part schematic side view according to the fluorescent wheel of different embodiments of the present invention.
Figure 10 to Figure 15 shows the front-view schematic diagram of the fluorescent wheel according to different embodiments of the present invention.
Figure 16 and Figure 17 shows the front-view schematic diagram of the fluorescent wheel according to different embodiments of the present invention.
Figure 18 and Figure 19 shows the schematic diagram of the converging module according to different embodiments of the present invention.
The signal of the laser projection light source and its light path according to different embodiments of the present invention is shown respectively in Figure 20 to Figure 23
Figure.
Figure 24 and Figure 25 shows the schematic diagram of laser projection device and its light path according to different embodiments of the present invention.
Reference sign：
100：Laser projection light source
111、112：Laser light source module
120、140：Receive optical module
121：Dichronic mirror
122、143：Assemble module
124、126：Speculum
130、810：Fluorescent wheel
130a：First side
130b：The second side
131、131b、131c：Fluorescence coating
131a：Fluorescent powder
132、132a、132b：Transparent substrate
133、133a、133b、133c、133d：Anti-reflective film
134：Motor
135：Upper lantern ring
136：Rigid sheet
138a、138b：Point
139a、139b、139c、139d：Part
141、142、144：Speculum
150：Converging module
151：Light path sorting module
151r：Reflecting surface
152：Integration rod
152o：Opening
200：Laser projection device
210：Wavelength selector
220、221、222、223：Image module
230：Projection module
810：Fluorescent wheel
811：Fluorescence coating
811a：Fluorescent powder
812：Reflecting layer
901、902：Laser
903、904、991、992：Fluorescence
905：Closing light
911：First coloured light
912：Second coloured light
913：Third coloured light
921、922、923、924：Image light
931、932、933、934：Projected light
Specific implementation mode
Multiple embodiments of the present invention, as clearly stated, the details in many practices will be disclosed below with attached drawing
It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also
It is to say, in some embodiments of the present invention, the details in these practices is non-essential.In addition, for the sake of simplifying attached drawing, one
A little existing usual structures and element will be shown in a manner of simply illustrating in the accompanying drawings.
Fig. 1 shows the schematic diagram of the laser projection light source 100 and its light path according to an embodiment of the present invention.The present invention is not
A kind of laser projection light source 100 is provided with embodiment.As illustrated in FIG. 1, laser projection light source 100 includes laser light source module
111, it receives optical module 120, fluorescent wheel 130, receive optical module 140 and converging module 150.
Laser light source module 111 emits laser 901.Laser 901 is by receiving optical module 120.Fluorescent wheel 130 has the first side
130a and the second side 130b.Fluorescent wheel 130 receives laser 901, and the laser 901 of conversion portion is fluorescence 903 and fluorescence 904.
First side 130a receives the laser 901 by receiving optical module 120 and transmitting fluorescence 903.The second side 130b transmitting fluorescence 904 and
Penetrate the laser 901 of fluorescent wheel 130.There is fluorescence 903 primary optic axis, fluorescence 903 can be transferred in receiving optical module 120, such as
Turnover is primary, makes fluorescence 903 after by receiving optical module 120, receives the direction that optical module 120 changes primary optic axis.Receive optical module
140 receive fluorescence 904, and there is wherein fluorescence 904 second optical axis, fluorescence 904 can be transferred in receiving optical module 140, such as twice,
Make fluorescence 904 after by receiving optical module 140, receives the direction that optical module 140 changes the second optical axis.Converging module 150 receives logical
It crosses the fluorescence 903 for receiving optical module 120 and forms closing light 905 by receiving the fluorescence 904 of optical module 140 and carrying out closing light, wherein
For fluorescence 903,904 when entering converging module 150, the differential seat angle of primary optic axis and the second optical axis is more than 30 degree.In this embodiment party
In formula, the differential seat angle of primary optic axis and the second optical axis is about 90 degree.
Furthermore, it is understood that laser 901 makes the second side 130b of 901 autofluorescence wheel 130 of laser leave by fluorescent wheel 130
And enter and receive optical module 140, there is laser 901 third optical axis, laser 901 can be transferred in receiving optical module 140, such as turnover two
It is secondary, and change the direction of third optical axis receiving optical module 140, and laser 901 is made to enter closing light mould after leaving receipts optical module 140
Block 150.
Fig. 2 shows the part schematic side views of the fluorescent wheel 130 according to an embodiment of the present invention.As illustrated in FIG. 2, glimmering
Halo 130 includes fluorescence coating 131, and 131 switched laser 901 of fluorescence coating is fluorescence 903 and fluorescence 904.
Fig. 3 shows the part schematic side view of the fluorescent wheel 810 of traditionally laser projection light source.As shown in Figure 1, Figure 2 and
Shown by Fig. 3, in traditional laser projection light source, fluorescent wheel may be penetration fluorescent wheel or reflective fluorescent wheel, citing
For, fluorescent wheel 810 is reflective fluorescent wheel.Fluorescent wheel 810 is collected by reflecting layer 812 therein emitted by fluorescence coating 811
Fluorescence, thus the wherein side of 992 autofluorescence wheel 810 of fluorescence is made to project.Since laser injects fluorescence coating 811 and excitation fluorescence
After fluorescent powder 811a in layer 811, fluorescent powder 811a can emit fluorescence 992, therefore 992 meeting of fluorescence around using itself as starting point
With different angle incidence reflecting layer 812.When incidence angle angle in 992 incidence reflecting layer 812 of fluorescence is more than certain angle
(for example, 60 degree), the reflectivity in reflecting layer 812 will have to be declined to a certain extent.In other words, reflecting layer 812 will
Absorb the fluorescence 992 of part.In order to avoid similar situation occurs, the fluorescent wheel 130 of laser projection light source 100 omits reflecting layer
Design, thus the first side 130a of 903 autofluorescence wheel 130 of fluorescence is made to project, the second side of 904 autofluorescence wheel 130 of fluorescence
130b is projected.Then, because being not provided with reflecting layer, reflecting layer absorb part fluorescence 903,904 the case where will not occur, close
Optical module 150 will receive more fluorescence 903,904, thus the conjunction that laser projection light source 100 is emitted can be substantially improved
The brightness of light 905.
Furthermore, it is understood that go out as shown in Figure 2 and Figure 3, emit around using itself as starting point in fluorescent powder 131a, 811a glimmering
After light 991,992, fluorescence 991,992 may be absorbed by other fluorescent powders, and there is a situation where fluorescence self-absorption shine, this
Part is the loss for energy, thus the light emission rate of fluorescent wheel 130,810 is made to decline.It is glimmering in traditional laser projection light source
Light 992 is possible to then to be reflected by reflecting layer 812 by part fluorescence coating 811, and turn back fluorescence coating 811 again later.Compare it
Under because laser projection light source 100 fluorescent wheel 130 omit reflecting layer design, therefore fluorescence 991 reach the first side 130a or
After the second side 130b, fluorescence will be directly off fluorescence coating 131.Then, it is assumed that under the fluorescence coating of same thickness, compared to
Average path length of the fluorescence 992 in fluorescence coating 811, average path length of the fluorescence 991 in fluorescence coating 131 will be opposite
It is shorter, therefore compared to conventional laser projection light source, fluorescence coating 131 is less likely to occur fluorescence self-absorption and shines, therefore will have
The luminous efficiency of effect control fluorescence coating 131.
By aforementioned mechanism, the brightness for the closing light 905 that laser projection light source 100 is emitted will be substantially improved.At some
In embodiment, compared to conventional laser projection light source, the brightness for the closing light 905 that laser projection light source 100 is emitted will carry
Rise about 20% to 30%.However, for whole laser projection light source 100, fluorescence 903,904 is through receiving optical module 120,140
After be not necessarily required, via 150 closing light of converging module, two light paths can certainly be split up into and be the wave corresponding to rear end
Long selector 210 and image module 220 are handled, and the technique effect of the present invention can be equally reached.
Laser 901 is for excite the exciting light of fluorescence coating 131, preferably should be the laser by shorter wavelength by fluorescence
Powder 131a is converted into the stimulated light with longer wavelength.Specifically, laser 901 is blue light or ultraviolet light, and fluorescence 903,904
The as described stimulated light.It will be understood that the specific implementation mode of laser 901 provided above is only to illustrate, not limiting
The present invention, the technical staff in the technical field of the invention should regard actual needs, the specific embodiment party of elasticity selection laser 901
Formula.
Specifically, fluorescence 903 has same frequency spectrum with fluorescence 904, and fluorescence 903 and the luminance difference of fluorescence 904 are small
In 5%.Fluorescence 903 is feux rouges, green light, yellow light or combinations thereof with fluorescence 904.It will be understood that fluorescence 903 provided above with it is glimmering
The specific implementation mode of light 904 is only to illustrate, not to limit the present invention, the technical staff in the technical field of the invention,
Actual needs, the specific implementation mode of elasticity selection fluorescence 903 and fluorescence 904 should be regarded.
As illustrated in FIG. 2, fluorescence coating 131 is that fluorescent powder 131a is sintered in glass bulk therein, but not limited to this.
In other embodiment, fluorescence coating 131 can be other light-transmitting materials.
Fig. 4 to Fig. 9 shows the part schematic side view of the fluorescent wheel 130 according to different embodiments of the present invention.Such as Fig. 4 institutes
It shows, the fluorescent wheel 130 of present embodiment is substantially identical as the fluorescent wheel of Fig. 2 130, will mainly describe at difference below.
Fluorescent wheel 130 also includes transparent substrate 132.Fluorescence coating 131 is set on transparent substrate 132.Specifically, transparent
Substrate 132 is located at the first side 130a, and fluorescence coating 131 is located at the second side 130b.Furthermore, it is understood that fluorescent wheel 130 also includes anti-
Reflectance coating 133.Anti-reflective film 133 is set to side of the transparent substrate 132 relative to fluorescence coating 131, that is, laser 901 enters
The incident side of fluorescent wheel 130, to promote the transmittancy of transparent substrate 132.
Specifically, fluorescence coating 131 is to mix fluorescent powder 131a in transparent colloid therein, but not limited to this.At other
In embodiment, fluorescence coating 131 can be other light-transmitting materials.
Specifically, the material of transparent substrate 132 can be glass, but not limited to this.In other embodiments, transparent base
Plate 132 can be other transparent materials.
As illustrated in FIG. 5, the fluorescent wheel 130 of present embodiment is substantially identical as the fluorescent wheel of Fig. 4 130, and main difference exists
In fluorescence coating 131 is located at the first side 130a, and transparent substrate 132 is located at the second side 130b.In addition, anti-reflective film 133 is set to
Side of the transparent substrate 132 relative to fluorescence coating 131, that is, fluorescence 904 light emission side, to promote the light extraction of fluorescent wheel 130
Efficiency.
As illustrated in FIG. 6, the fluorescent wheel 130 of present embodiment is substantially identical as the fluorescent wheel of Fig. 2 130, mainly will below
It describes at difference.
Fluorescent wheel 130 also includes two transparent substrate 132a, 132b.Fluorescence coating 131 be located in transparent substrate 132a with it is transparent
Between substrate 132b.Specifically, transparent substrate 132a is located at the first side 130a, and transparent substrate 132b is located at the second side
130b.Furthermore, it is understood that fluorescent wheel 130 also includes anti-reflective film 133a, 133b.Anti-reflective film 133a is set to transparent substrate
Sides of the 132a relative to fluorescence coating 131, anti-reflective film 133b are set to one of transparent substrate 132b relative to fluorescence coating 131
Side.
As illustrated in FIG. 7, the fluorescent wheel 130 of present embodiment is substantially identical as the fluorescent wheel of Fig. 5 130, mainly will below
It describes at difference.
Fluorescent wheel 130 also includes fluorescence coating 131b.Fluorescence coating 131 and fluorescence coating 131b is respectively arranged at transparent substrate 132
Both sides.Specifically, fluorescence coating 131 is located at the first side 130a, and fluorescence coating 131b is located at the second side 130b.In addition, fluorescence
Wheel 130 is not comprising anti-reflective film 133.Upper in others application, fluorescence coating 131 and fluorescence coating 131b can be identical or different
Fluorescent material, keep fluorescence 903 identical as the spectral range of fluorescence 904 or there is difference, making can be by rear end closing light 905
It is adjusted to optical properties such as the wave-length coverages or intensity wanted.
As illustrated in FIG. 8, the fluorescent wheel 130 of present embodiment is substantially identical as the fluorescent wheel of Fig. 4 130, and main difference exists
In, anti-reflective film 133c can be set to by plated film or other possible generation types fluorescence coating 131 and transparent substrate 132 it
Between, wherein the optical characteristics of anti-reflective film 133c is matched with fluorescence coating 131 and transparent substrate 132, thus is able to processing fluorescence coating
Antireflection demand between 131 and transparent substrate 132.
As illustrated in FIG. 9, the fluorescence coating 131 of present embodiment is substantially identical as the fluorescence coating of Fig. 2 131, and main difference exists
In anti-reflective film 133d can be set to the both sides of fluorescence coating 131, anti-reflective film by plated film or other possible generation types
The optical characteristics of 133d matches with fluorescence coating 131 and air, thus is able to promote fluorescence coating 131 and goes out light ability.
Anti-reflective film 133c or anti-reflective film 133d is also additionally arranged in the fluorescent wheel 130 of similar Fig. 8 and Fig. 9, Fig. 5 to Fig. 7
Between the both sides or fluorescence coating and transparent substrate of fluorescence coating.
Figure 10 to Figure 15 shows the front-view schematic diagram of the fluorescent wheel 130 according to different embodiments of the present invention.Such as Figure 10 institutes
It shows, fluorescence coating 131 is covered with entire fluorescent wheel 130.In addition, the position of laser 901 (referring to Fig.1) incident fluorescence wheel 130 is point
138a, and dotted portion is then the track that laser 901 is irradiated in fluorescent wheel 130 when fluorescent wheel 130 rotates.In other variations
In embodiment, fluorescence coating 131 not necessarily needs to be covered with entire fluorescent wheel 130, can also be to be distributed in the rail
Ring-like distribution mode on mark, equally may be implemented the purpose of the present invention.
As illustrated in FIG. 11, the fluorescent wheel 130 of present embodiment is substantially identical as the fluorescent wheel of Figure 10 130, below mainly
It will describe at difference.
The quantity of laser light source module 111 (referring to Fig.1) is multiple, therefore the quantity of laser 901 (referring to Fig.1) is also more
It is a.The position of 901 incident fluorescence wheel 130 of one of laser is point 138a, the position of another 901 incident fluorescence wheel 130 of laser
It is set to point 138b.Point 138a is at a distance from the center of fluorescent wheel 130 and point 138b is identical at a distance from the center of fluorescent wheel 130.
It should be noted that in other embodiments, the energy or frequency spectrum of 901 incident fluorescence wheel 130 of dual-laser can be different, or according to
Sequential emits light, in addition the position of 901 incident fluorescence wheel 130 of laser can not only point 138a, 138b, and laser 901 is incident
The different location of fluorescent wheel 130 may be identical or different at a distance from the center of fluorescent wheel 130.
Furthermore, it is understood that point 138a, 138b are respectively arranged at the left and right sides of fluorescent wheel 130.Then, in laser projection light
Source 100 run and fluorescent wheel 130 in the rotation, just can be in fluorescent wheel by the part of the fluorescence coating 131 of point 138a, 138b
After 130 turns of half-turns just can again by point 138a, 138b, thus make each section of fluorescence coating 131 pass through point 138a, 138b when
Between be spaced and can extend, and then each section of fluorescence coating 131 is avoided to be burnt out by laser 901, in similar application, thrown to point
Laser light source module 111 on 138a, 138b can also chronologically shine.It will be understood that the position of point 138a, 138b provided above
It sets and only illustrates, not to limit the present invention, the technical staff in the technical field of the invention should regard actual needs, elasticity
The position of selected element 138a, 138b.
As illustrated in FIG. 12, the fluorescent wheel 130 of present embodiment is substantially identical as the fluorescent wheel of Figure 11 130, below mainly
It will describe at difference.
Point 138a is more than point 138b at a distance from the center of fluorescent wheel 130 at a distance from the center of fluorescent wheel 130.Because point
138a is at a distance from the center of fluorescent wheel 130 and point 138b is different at a distance from the center of fluorescent wheel 130, so passing through point 138a
The part of fluorescence coating 131 point 138a will not will not be passed through by the part of the fluorescence coating 131 of point 138b by point 138b.In
It is that each section of fluorescence coating 131 can further be extended by the time interval of point 138a, 138b, and then avoid fluorescence coating 131
Each section burnt out by laser 901.
The fluorescent wheel 130 of Figure 13 to Figure 15 is substantially identical as the fluorescent wheel of Figure 10 to Figure 12 130, and main difference is,
There is fluorescent wheel 130 different piece, different piece different fluorescence coatings may be arranged or be not provided with fluorescence coating.
As illustrated in FIG. 13, the fluorescent wheel 130 of present embodiment is substantially identical as the fluorescent wheel of Figure 10 130, below mainly
It will describe at difference.
On the basis of the center of fluorescent wheel 130, by 130 cutting of fluorescent wheel be its shape be fan-shaped part 139a, 139b,
139c、139d.Fluorescence coating 131 is set to part 139a.Fluorescent wheel 130 also includes fluorescence coating 131b, 131c.Fluorescence coating 131b is set
It is placed in part 139b, fluorescence coating 131c is set to part 139c.Part 139d is transparent.When laser light source module 111 is continuously sent out
Laser 901 (referring to Fig.1) and fluorescent wheel 130 is in the rotation, part 139a, 139b, 139c, 139d are received according to different sequential
Laser 901.Then, fluorescence coating 131,131b, 131c are according to different timing conversion laser 901, and fluorescence coating 131,131b, 131c meeting
Emit similar and different fluorescence respectively, these fluorescence will closing light and as fluorescence 903 and fluorescence 904.In part, 139d connects
When receiving laser 901, laser 901 will penetrate the part 139d of fluorescent wheel 130.
Specifically, the fluorescence that fluorescence coating 131,131b, 131c are emitted can be feux rouges, green light, yellow light or combinations thereof.More
Furthermore, it is understood that the two of which for the fluorescence that fluorescence coating 131,131b, 131c are emitted or three can be have for two or three
The feux rouges of different spectral, two or three green light or two or three of yellow light with different spectral with different spectral.
Then, fluorescence 903 will can be adjusted to the frequency spectrum wanted with fluorescence 904 after the closing light of rear end.
As illustrated in FIG. 14, the fluorescent wheel 130 of present embodiment is substantially identical as the fluorescent wheel of Figure 11 130, below mainly
It will describe at difference.
On the basis of the center of fluorescent wheel 130, by 130 cutting of fluorescent wheel be its shape be fan-shaped two part 139a,
Two part 139b, two part 139c and two part 139d.Fluorescence coating 131 is set to part 139a.Fluorescence coating 131b is set
It is placed in part 139b, fluorescence coating 131c is set to part 139c.Part 139d is transparent.Part 139a, 139b, 139c, 139d
Laser 901 (referring to Fig.1) is received according to different sequential.Then, fluorescence coating 131,131b, 131c be according to different timing conversion laser 901,
And fluorescence coating 131,131b, 131c can emit similar and different fluorescence respectively, these fluorescence will closing light and become fluorescence 903
With fluorescence 904.When in part, 139d receives laser 901, laser 901 will penetrate the part 139d of fluorescent wheel 130.
Specifically, the fluorescence that fluorescence coating 131,131b, 131c are emitted can be feux rouges, green light, yellow light or combinations thereof.More
Furthermore, it is understood that the two of which for the fluorescence that fluorescence coating 131,131b, 131c are emitted or three can be have for two or three
The feux rouges of different spectral, two or three green light or two or three of yellow light with different spectral with different spectral.
As illustrated in FIG. 15, the fluorescent wheel 130 of present embodiment is substantially identical as the fluorescent wheel of Figure 14 130, below mainly
It will describe at difference.
Point 138a is more than point 138b at a distance from the center of fluorescent wheel 130 at a distance from the center of fluorescent wheel 130.Because point
138a is at a distance from the center of fluorescent wheel 130 and point 138b is different at a distance from the center of fluorescent wheel 130, so passing through point 138a
The part of fluorescence coating 131 point 138a will not will not be passed through by the part of the fluorescence coating 131 of point 138b by point 138b.
It should be noted that the position configuration of different piece is not necessarily required according to aforementioned embodiments in fluorescent wheel 130.It lifts
Example for, in some embodiments, in the 139a of part the part at the center of closer fluorescent wheel 130 with further away from fluorescent wheel
The part at 130 center can again cutting be two parts, then in the 139a of part the center of closer fluorescent wheel 130 part
Can by point 138b but can not be by point 138a, can be with further away from the part at the center of fluorescent wheel 130 in the 139a of part
By point 138a but point 138b can not be passed through.Part 139a can also at a distance from the center of fluorescent wheel 130 on the basis of and
The part that cutting is three or more.Part 139b, 139c, 139d also can cutting be multiple portions.
Figure 16 and Figure 17 shows the front-view schematic diagram of the fluorescent wheel 130 according to different embodiments of the present invention.Such as Figure 16 institutes
It shows, fluorescent wheel 130 also includes motor 134 and upper lantern ring 135.Motor 134 is set to the center of fluorescent wheel 130.Fluorescence coating 131
Around motor 134.Upper lantern ring 135 is set between motor 134 and fluorescence coating 131, thus motor 134 is made to be fixed on fluorescence coating
131.Can be with some materials in added material to upper lantern ring 135 or in removal on lantern ring 135, thus adjust fluorescent wheel 130
Rotary balance.
As illustrated in FIG. 17, fluorescent wheel 130 also includes motor 134, upper lantern ring 135 and rigid sheet 136.Motor 134
It is fixed on rigid sheet 136, fluorescence coating 131 is around rigid sheet 136.Upper lantern ring 135 is set to rigid sheet 136 and fluorescence coating
Between 131, thus rigid sheet 136 is made to be fixed on fluorescence coating 131.
It should be noted that in some embodiments, fluorescence coating 131 can also be split as different piece, different portions
Different fluorescence coatings can be provided with by dividing, while some parts can be transparent.
Fig. 1 is returned, as illustrated in FIG. 1, it includes dichronic mirror 121 and convergence module 122 to receive optical module 120.In lasing light emitter
After module 111 emits laser 901, laser 901 will by dichronic mirror 121 with assemble module 122 by incident fluorescence wheel 130.
After the first side 130a transmitting fluorescence 903 of fluorescent wheel 130, assembles module 122 and assemble fluorescence 903.Then, dichronic mirror 121 reflects
Fluorescence 903 allows fluorescence 903 to transfer at dichronic mirror 121, to change the direction of the primary optic axis of fluorescence 903.Specifically, glimmering
The angle of 903 incidence dichronic mirror 121 of light is less than about 60 degree of (in the present embodiment, angles of 903 incidence dichronic mirror 121 of fluorescence
It is about 45 degree), occur to avoid the case where absorption fluorescence 903 of dichronic mirror 121.
Specifically, it includes an at least convergent lens to assemble module 122.It should be noted that because fluorescent powder can be with certainly
Fluorescence 903 is dissipated around as starting point, so the length for assembling the light path between module 122 and fluorescent wheel 130 preferably regards diverging
Situation and adjust so that assemble module 122 can effectively assemble fluorescence 903.
In addition, the inside light path configuration for receiving optical module 120 be not limited to it is aforementioned.For example, in some embodiments,
After the first side 130a transmitting fluorescence 903 of fluorescent wheel 130, first by 121 reflected fluorescent light 903 of dichronic mirror.Then, module is assembled
It is sent to converging module 150 after 122 convergence fluorescence 903.In addition, in some embodiments, laser 901 can only pass through dichronic mirror 121
Without by assembling module 122.
It includes speculum 141,142 and convergence module 143 to receive optical module 140.In the second side 130b transmittings of fluorescent wheel 130
After fluorescence 904, speculum 141,142 sequentially reflection laser 901 and fluorescence 904, and speculum 141,142 changes fluorescence 904
The direction in the direction of primary optic axis and the third optical axis of laser 901, i.e. fluorescence 904 are with laser 901 after laggard membership of transferring twice
Poly- module 143.Then, it assembles module 143 and assembles fluorescence 904, laser 901 is by assembling module 143.Specifically, fluorescence 904
The angle of incident speculum 141,142 is less than about 60 degree of (in the present embodiment, angles of 904 incidence speculum 141,142 of fluorescence
Degree is about 45 degree), occur to avoid the case where absorption fluorescence 904 of speculum 141,142.In the embodiment of other variations,
The speculum 141,142 can also be selected depending on actual demand to be worn for the particular range of wavelengths of laser 901 and fluorescence 904 correspondence
Saturating or reflection dichronic mirror, to adjust the optical property of rear end closing light 905.
Specifically, it includes an at least convergent lens to assemble module 143.It should be noted that because fluorescent powder can be with certainly
Fluorescence 903 is dissipated around as starting point, so the length for assembling the light path between module 143 and fluorescent wheel 130 preferably regards diverging
Situation and adjust so that assemble module 143 can effectively assemble fluorescence 904.
In addition, the inside light path configuration for receiving optical module 140 be not limited to it is aforementioned.For example, in some embodiments,
After the second side 130b transmitting fluorescence 904 of fluorescent wheel 130, assembles module 143 and assemble fluorescence 904, and laser 901 passes through convergence
Module 143.Then, speculum 141,142 sequentially reflection laser 901 and fluorescence 904.
Figure 18 and Figure 19 shows the schematic side view of the converging module 150 according to different embodiments of the present invention.Such as Figure 18
Shown, converging module 150 includes light path sorting module 151 and integration rod (Integration Rod) 152.Integration rod 152 has
There is opening 152o and emits closing light 905 in exit.Light path sorting module 151 makes laser 901 pass through light with fluorescence 903,904
After road sorting module 151, the side of the third optical axis of the primary optic axis of fluorescence 903, the second optical axis of fluorescence 904 and laser 901
To identical, and laser 901 is made to enter opening 152o with fluorescence 903,904.Then, it is uniformly mixed into opening in integration rod 152
For the laser 901 of 152o with after fluorescence 903,904, integration rod 152 emits closing light 905.
Specifically, light path sorting module 151 has reflecting surface 151r.Reflecting surface 151r reflection lasers 901 and fluorescence
904.Laser 901 and the angle of the incident reflecting surface 151r of fluorescence 904 are about 45 degree.
In other embodiments, light path sorting module 151 can have other embodiments.For example, Figure 19 shows
Go out the another embodiment of light path sorting module 151.In another example light path sorting module 151 can be one with integration rod 152
Body mainly first makes incidence surface carry out the integration on each road radiation direction, make to be integrated into it is identical as the direction of third optical axis, then
The uniform light mixing of the roads Zai Rangge.For another example in the embodiment that other may be implemented, light path sorting module 151 can also
For optic module.
In some embodiments, convergent lens can be used to replace integration rod 152.In addition, converging module 150 can be
Optic module.
Figure 20 to Figure 23 is shown respectively according to the laser projection light source 100 of different embodiments of the present invention and showing for its light path
It is intended to, the component details in laser projection light source 100 are as previously mentioned, details are not described herein.As illustrated in FIG. 20, laser projection light
Source 100 also includes another laser light source module 112.Laser light source module 112 emits blue laser 902, and wherein laser 902 enters closing light
Module 150.In addition, laser 901 is when fluorescent wheel 130 by the fluorescence coating of fluorescent wheel 130 by being absorbed, therefore laser 901 is without logical
Receipts optical module 140 is crossed, and laser 901 does not enter into converging module 150, but it is not limited to this.In other embodiments, laser
901 can be by fluorescent wheel 130, and then laser 901 is exited into from the second side 130b receives optical module 140, receipts optical module 140
Change the direction of the third optical axis of laser 901, and laser 901 is made to enter converging module 150 after leaving receipts optical module 140.
In principle, the laser 902 of laser light source module 112 is used as the light for supplementing particular range of wavelengths, it is therefore an objective to
Make laser projection light source 100 that there is more complete color representation.For example, blue when lacking in laser 901 and fluorescence 903,904
When photoelement, then laser 902 is blue light, if lack feux rouges element, laser 902 is feux rouges.On as light filling purpose with
For mending blue light, laser 902 can also be entered light filling by receipts optical module 120, such as enter light filling by dichronic mirror 121.It should be appreciated that
It arriving, the specific implementation mode of laser 902 provided above is only to illustrate, not to limit the present invention, technology belonging to the present invention
Technical staff in field should regard actual needs, the specific implementation mode of elasticity selection laser 902.
Or go out as shown in figure 21, laser light source module 111 emits laser 901.Laser 901 is by receiving optical module 120.
Fluorescent wheel 130 has the first side 130a and the second side 130b.Fluorescent wheel 130 receives laser 901, and switched laser 901 is fluorescence
903 emit with fluorescence 904 and respectively from the first side 130a and the second side 130b.Fluorescence 903 has primary optic axis, and fluorescence 903 can
It is converged the convergence of module 122 in receiving optical module 120, and is transferred, such as by dichronic mirror 121, the turnover of speculum 124,126 three
It is secondary, make fluorescence 903 after by receiving optical module 120, receives the direction that optical module 120 changes primary optic axis.Receiving optical module 140 has
Module 143 is assembled to receive and assemble fluorescence 904.Converging module 150, which receives, to be passed through the fluorescence 903 for receiving optical module 120 and passes through
It receives the fluorescence 904 of optical module 140 and carries out closing light and form closing light 905, wherein fluorescence 903,904 is entering converging module 150
When, about 90 degree of the differential seat angle of primary optic axis and the second optical axis.
In other embodiments, as illustrated in figure 22, laser light source module 111 emits laser 901.Laser 901 is by receiving light
Module 120.Fluorescent wheel 130 has the first side 130a and the second side 130b.Fluorescent wheel 130 receives laser 901, and switched laser
901 emit for fluorescence 903 with fluorescence 904 and respectively from the first side 130a and the second side 130b.Fluorescence 903 has primary optic axis,
Fluorescence 903 can be converged the convergence of module 122 in receiving optical module 120, and be transferred, such as by dichronic mirror 121, speculum 124
Turnover twice, makes fluorescence 903 after by receiving optical module 120, receives the direction that optical module 120 changes primary optic axis.Receive optical module
140 have convergence module 143 to receive and assemble fluorescence 904.Converging module 150 receives the fluorescence 903 by receiving optical module 120
Closing light 905 is formed with by receiving the fluorescence 904 of optical module 140 and carrying out closing light, wherein fluorescence 903,904 is entering closing light mould
When block 150, primary optic axis and the second optical axis are generally parallel.
In other examples, go out as shown in figure 23, laser light source module 111 emits laser 901.Laser 901 passes through receipts
Optical module 120.Fluorescent wheel 130 has the first side 130a and the second side 130b.Fluorescent wheel 130 receives laser 901, and switched laser
901 emit for fluorescence 903 with fluorescence 904 and respectively from the first side 130a and the second side 130b.Fluorescence 903 has primary optic axis,
Fluorescence 903 can be converged the convergence of module 122 in receiving optical module 120, and be transferred, such as by dichronic mirror 121 and speculum 124
Turnover twice, makes fluorescence 903 after by receiving optical module 120, receives the direction that optical module 120 changes primary optic axis.Fluorescence 904 has
There is the second optical axis, fluorescence 904 can be converged the convergence of module 143 in receiving optical module 140, and be transferred, such as by speculum
142,144 turnovers twice, make fluorescence 904 after by receiving optical module 140, receive the direction that optical module 140 changes the second optical axis.It closes
Optical module 150 receives the fluorescence 903 by receiving optical module 120 and the shape by fluorescence 904 and progress closing light of receipts optical module 140
At closing light 905, wherein fluorescence 903,904 is when entering converging module 150, the differential seat angle about 180 of primary optic axis and the second optical axis
Degree.
Figure 24 and Figure 25 shows the signal of laser projection device 200 and its light path according to different embodiments of the present invention
Figure.As shown by Figure 24 and Figure 25, laser projection device 200 includes laser projection light source 100, wavelength selector 210, at least one
Image module and projection module 230.Wavelength selector 210 receives closing light 905, and emits the first coloured light 911, the second coloured light
912 and third coloured light 913.Image module receives the first coloured light 911, the second coloured light 912 and third coloured light 913, and generates
An at least image light.Projection module 230 receives image light, and generates an at least projected light.
As shown by Fig. 1 and Figure 24, the laser projection light source 100 in Figure 24 can be any one laser projection above-mentioned
Light source 100.Laser projection device 200 includes image module 220, and the quantity of image module 220 is one, wavelength selector
210 emit the first coloured light 911, the second coloured light 912 and third coloured light 913 according to different sequential, and image module 220 is according to different sequential
Receive the first coloured light 911, the second coloured light 912 and third coloured light 913.After image module 220 receives the first coloured light 911, shadow
As module 220 generates image light 921.After image module 220 receives the second coloured light 912, image module 220 generates image light
922.After image module 220 receives third coloured light 913, image module 220 generates image light 923.In other words, image module
220 generate image light 921,922,923 according to different sequential.Projection module 230 according to different sequential receive image light 921,922,
923.After projection module 230 receives image light 921, projection module 230 generates projected light 931.Shadow is received in projection module 230
As after light 922, projection module 230 generates projected light 932.After projection module 230 receives image light 923, projection module 230 produces
Raw projected light 933.In other words, projection module 230 generates projected light 931,932,933 according to different sequential.
Specifically, wavelength selector 210 can be the colour wheel with optical filter.The rotation mode of colour wheel will correspond to glimmering
The rotation mode of halo 130.For example, in some embodiments, when fluorescent wheel 130 is rotated and makes fluorescent wheel 130
Emit fluorescence 903,904, and assume that laser 901 can completely be converted by the fluorescence coating of fluorescent wheel 130, colour wheel will rotate to corresponding
Optical filter and so that it is selected and filter out possessed specific frequency spectrum range in the frequency spectrum of fluorescence 903,904 (such as feux rouges or
Green light).When fluorescent wheel 130 is rotated and (fluorescent wheel 130 does not emit at this time when make laser 901 by fluorescent wheel 130
Fluorescence 904), colour wheel will rotate to corresponding optical filter or diffusion sheet and so that it is selected and emit in the frequency spectrum of laser 901
Possessed specific frequency spectrum range (such as blue light).
Specifically, image module 220 can be liquid crystal display panel or micro- reflection chip (the Digital Micro-mirror of number
Device, DMD).It will be understood that the specific implementation mode of image module 220 provided above is only to illustrate, not limiting
The present invention, the technical staff in the technical field of the invention should regard actual needs, the specific reality of elasticity selection image module 220
Apply mode.
Specifically, projection module 230 may include multiple lens, for example, convergent lens or divergent lens.It should be appreciated that
It arrives, the specific implementation mode of projection module 230 provided above is only to illustrate, not to limit the present invention, belonging to the present invention
Technical staff in technical field should regard actual needs, the specific implementation mode of elasticity selection projection module 230.
Specifically, the first coloured light 911, the second coloured light 912 and the third coloured light 913 that rotate and generate in response to colour wheel can
To be respectively feux rouges, green light or blue light, white light forms image light in a manner of timesharing according to sequential via image module 220
921,922,923 are respectively red image light, green image light or blue image light.Projected light 931,932,933 can divide
It Wei not drop shadow red's light, drop shadow green's light or drop shadow blue's light.It will be understood that the first coloured light 911 provided above, the second coloured light
912 with the specific implementation mode of third coloured light 913, image light 921,922,923 and projected light 931,932,933 only for
Show, not to limit the present invention, the technical staff in the technical field of the invention should regard actual needs, elasticity selection first
Coloured light 911, the second coloured light 912 are specific with third coloured light 913, image light 921,922,923 and projected light 931,932,933
Embodiment.
As shown by Figure 20 and Figure 25, the laser projection device 200 of Figure 25 substantially with 200 phase of the laser projection device of Figure 24
Together, its deviation will be mainly introduced below.
Laser projection light source 100 in Figure 25 can be any one laser projection light source 100 above-mentioned.Laser projection fills
It includes image module 221,222,223 to set 200.Image module 221 receives the first coloured light 911 and generates image light 921.Image mould
Block 222 receives the second coloured light 912 and generates image light 922.Image module 223 receives third coloured light 913 and generates image light
923.Become image light 924 after 921,922,923 closing light of image light.Projection module 230 receives image light 924, and generates projection
Light 934.
Specifically, wavelength selector 210 may include multiple dichronic mirrors or comprising multiple prism.More specifically, it closes
The frequency spectrum of light 905 is essentially white light, including the frequency spectrum of the first coloured light 911, the frequency spectrum of the second coloured light 912 and third coloured light 913
Frequency spectrum, and wavelength selector 210 is after receiving closing light 905, while isolating the first coloured light 911, the second coloured light 912 and
Three coloured light 913.
Specifically, image module 221,222,223 can be liquid crystal display panel or the micro- reflection chip (Digital of number
Micro-mirror Device, DMD).It will be understood that the specific implementation mode of image module 221,222,223 provided above
It only illustrates, not to limit the present invention, the technical staff in the technical field of the invention should regard actual needs, elasticity choosing
Select the specific implementation mode of image module 221,222,223.
Specifically, laser projection light source 100 can pass through the optical axis of multiple reflector alignment image light 921,922,923
Direction, thus make to become image light 924 after 921,922,923 closing light of image light.
The above embodiment of the present invention omits the design in reflecting layer by the fluorescent wheel of laser projection light source, thus makes fluorescence
It projects the two opposite sides of autofluorescence wheel.Then, because being not provided with reflecting layer, reflecting layer absorb part fluorescence the case where will not
Occur, converging module will receive more fluorescence, thus the bright of the closing light that laser projection light source is emitted can be substantially improved
Degree.
Furthermore, it is understood that after fluorescent powder emits fluorescence around using itself as starting point, fluorescence may be by other glimmering
Light powder absorbs, and there is a situation where fluorescence self-absorption shines, thus the light emission rate of fluorescent wheel is made to decline.Because of laser projection light source
Fluorescent wheel omit reflecting layer design, therefore fluorescence reach fluorescent wheel the first side or the second side after, fluorescence will directly from
Open fluorescence coating.Then, average path length of the fluorescence in fluorescence coating will be shorter, and fluorescence coating is less likely to occur fluorescence self-absorption
It shines, therefore will effectively promote the luminous efficiency of fluorescence coating.
By aforementioned two kinds of mechanism, the brightness for the closing light that laser projection light source is emitted will be substantially improved.In some realities
It applies in mode, compared to conventional laser projection light source, the brightness for the closing light that laser projection light source is emitted will promote about 20%
To 30%.
Although the present invention is disclosed as above with embodiment, however, it is not to limit the invention, any art technology
Personnel, without departing from the spirit and scope of the invention, when various variation and retouching, therefore protection scope of the present invention can be made
When subject to as defined in claim.
Claims (20)
1. a kind of laser projection light source, including：
An at least first laser source module, to emit a first laser；
One first receives optical module, and the wherein first laser passes through the first receipts optical module；
One fluorescent wheel has one first side and a second side, to receive the first laser, and converts the first laser as first
Fluorescence and the second fluorescence, wherein first side receive the first laser by the first receipts optical module and to emit this first glimmering
Light, the second side emit second fluorescence；
One second receives optical module, to receive second fluorescence, wherein first fluorescence by this first receive optical module with this
After two fluorescence are by the second receipts optical module, the optical axis of first fluorescence and at least one of second fluorescence can be transferred,
And first fluorescence is with the turnover number of the optical axis of second fluorescence and at least twice；And
One converging module, to receive first fluorescence by the first receipts optical module and being somebody's turn to do by the second receipts optical module
Second fluorescence and carry out closing light and form a closing light.
2. laser projection light source as described in claim 1, the wherein first laser are blue light.
3. laser projection light source as described in claim 1, wherein first fluorescence have same frequency spectrum with second fluorescence.
4. laser projection light source as described in claim 1, the luminance difference of wherein first fluorescence and second fluorescence are less than
5%.
5. laser projection light source as described in claim 1, wherein first fluorescence are feux rouges, green light, Huang with second fluorescence
Light or combinations thereof.
6. laser projection light source as described in claim 1, wherein the first receipts optical module include：
An at least dichronic mirror, to make the laser pass through the dichronic mirror and reflect first fluorescence.
7. laser projection light source as described in claim 1, wherein the first receipts optical module include：
One assembles module, to assemble first fluorescence.
8. laser projection light source as described in claim 1, wherein the second receipts optical module include：
An at least speculum, to reflect second fluorescence.
9. laser projection light source as described in claim 1, wherein the second receipts optical module include：
One assembles module, to assemble second fluorescence.
10. laser projection light source as described in claim 1, the wherein converging module include：
One integration rod has an opening, to emit the closing light；And
One light path sorting module；To make first fluorescence with second fluorescence after by the light path sorting module, this first
The optical axis of fluorescence is identical as the direction of the optical axis of second fluorescence, and first fluorescence is made to enter the opening with second fluorescence.
11. laser projection light source as described in claim 1, also includes：
One second laser source module, to emit a second laser, wherein the second laser enters the converging module.
12. laser projection light source as described in claim 1, wherein first laser by the fluorescent wheel, make the first laser certainly
The second side exits into the second receipts optical module, and the second receipts optical module is to the side for the optical axis for changing the first laser
To, and the first laser is made to enter the converging module after leaving the second receipts optical module.
13. laser projection light source as described in claim 1, the wherein fluorescent wheel include at least one first fluorescence coating, this first
Fluorescence coating is first fluorescence and second fluorescence to convert the first laser.
14. laser projection light source as claimed in claim 13, the wherein fluorescent wheel include also an at least transparent substrate, this first
Fluorescence coating is set on the transparent substrate.
15. laser projection light source as claimed in claim 13, the wherein fluorescent wheel also have an at least first part, this first
Fluorescence coating is set to the first part.
16. laser projection light source as claimed in claim 15, the wherein fluorescent wheel also have an at least second part, wherein should
Second part is transparent, and the first part receives the first laser from the second part according to different sequential.
17. laser projection light source as claimed in claim 15, the wherein fluorescent wheel also have a Part III, the fluorescent wheel is also
Including at least one second fluorescence coating, second fluorescence coating are set to the Part III, the wherein first part and the Part III
To receive the first laser according to different sequential, first fluorescence coating and second fluorescence coating to according to different timing conversions this
One laser, make first fluorescence coating and light closing light that second fluorescence coating is emitted to become first fluorescence second glimmering with this
Light.
18. a kind of laser projection device, including：
Laser projection light source described in claim 1；
One wavelength selector to receive the closing light, and emits one first coloured light, one second coloured light and a third coloured light；
An at least image module to receive first coloured light, second coloured light and the third coloured light, and generates an at least shadow
As light；And
One projection module to receive the image light, and generates an at least projected light.
19. laser projection device as claimed in claim 18, wherein the quantity of the image module is three, the image mould
Block receives first coloured light, second coloured light and the third coloured light and generates one first color image light, one second respectively respectively
Color image light and a third color image light, the first color image light, the second color image light and the third color image are photosynthetic
Become the image light after light.
20. laser projection device as claimed in claim 18, the wherein quantity of the image module are one, the wavelength selector
Emit first coloured light, second coloured light and the third coloured light according to different sequential, which receives according to different sequential should
First coloured light, second coloured light and the third coloured light, and the image light is generated according to different sequential, the projection module is according to difference
Sequential receives the image light, and generates the projected light according to different sequential.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762459617P | 2017-02-16 | 2017-02-16 | |
| US62/459,617 | 2017-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108445700A true CN108445700A (en) | 2018-08-24 |
Family
ID=63190830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710660359.5A Pending CN108445700A (en) | 2017-02-16 | 2017-08-04 | Laser projection light source and laser projection device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108445700A (en) |
| TW (1) | TWI689774B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156751A (en) * | 2020-01-23 | 2021-07-23 | 明基智能科技（上海）有限公司 | Projection device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI781391B (en) * | 2020-04-13 | 2022-10-21 | 台達電子工業股份有限公司 | Operation method of remote laser projection device |
| CN113534584B (en) | 2020-04-13 | 2023-07-04 | 台达电子工业股份有限公司 | Operation method of far-end laser projection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060087847A1 (en) * | 2004-10-22 | 2006-04-27 | Olympus Corporation | Field sequential lighting device and image projecting device |
| CN102741742A (en) * | 2010-01-29 | 2012-10-17 | Nec显示器解决方案株式会社 | Illumination optical system and projector using same |
| US20120268503A1 (en) * | 2011-04-20 | 2012-10-25 | Panasonic Corporation | Light Source Device and Projection Display Apparatus |
| US20130242534A1 (en) * | 2011-10-13 | 2013-09-19 | Texas Instruments Incorporated | Projector light source and system, including configuration for display of 3d images |
| CN104238248A (en) * | 2013-06-08 | 2014-12-24 | 中强光电股份有限公司 | Light source module and projection device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9664892B2 (en) * | 2013-01-14 | 2017-05-30 | Texas Instruments Incorporated | Hybrid laser excited phosphor illumination apparatus and method |
| US9470886B2 (en) * | 2013-01-24 | 2016-10-18 | Texas Instruments Incorporated | Split phosphor/slit color wheel segment for color generation in solid-state illumination system |
-
2017
- 2017-08-04 CN CN201710660359.5A patent/CN108445700A/en active Pending
- 2017-08-04 TW TW106126325A patent/TWI689774B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060087847A1 (en) * | 2004-10-22 | 2006-04-27 | Olympus Corporation | Field sequential lighting device and image projecting device |
| CN102741742A (en) * | 2010-01-29 | 2012-10-17 | Nec显示器解决方案株式会社 | Illumination optical system and projector using same |
| US20120268503A1 (en) * | 2011-04-20 | 2012-10-25 | Panasonic Corporation | Light Source Device and Projection Display Apparatus |
| US20130242534A1 (en) * | 2011-10-13 | 2013-09-19 | Texas Instruments Incorporated | Projector light source and system, including configuration for display of 3d images |
| CN104238248A (en) * | 2013-06-08 | 2014-12-24 | 中强光电股份有限公司 | Light source module and projection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156751A (en) * | 2020-01-23 | 2021-07-23 | 明基智能科技（上海）有限公司 | Projection device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI689774B (en) | 2020-04-01 |
| TW201831978A (en) | 2018-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105431776B (en) | Lighting device with fluorescent wheel and excited radiation source | |
| CN105190432B (en) | Light supply apparatus and projection-type image display device | |
| CN108572498B (en) | Light supply apparatus and optical projection system | |
| CN204201727U (en) | A kind of lighting device, vehicle laser headlight and automobile | |
| CN105467737A (en) | Laser light source device and laser projection equipment | |
| CN208537894U (en) | Lighting system and projection arrangement | |
| CN107272315A (en) | Illuminator and projection arrangement | |
| CN105388691A (en) | Laser source device and laser projection device | |
| CN105607400A (en) | Laser light source apparatus and laser projection equipment | |
| CN104880897A (en) | Lighting device and projection device | |
| CN110361914A (en) | Lighting system, control unit and projection arrangement | |
| CN102854723A (en) | Light-emitting device and projection apparatus | |
| CN107515512A (en) | A kind of light supply apparatus and projection display equipment | |
| CN109960099A (en) | A kind of projection light source system of non co axial | |
| WO2021259037A1 (en) | Light source apparatus and projection display device | |
| CN108445700A (en) | Laser projection light source and laser projection device | |
| EP3771945B1 (en) | Illumination system and projection apparatus | |
| CN209674172U (en) | A kind of projection light source system of non co axial | |
| CN210072201U (en) | Wavelength conversion module and projection device | |
| CN104808273A (en) | Light source system and light wavelength converter suitable for system | |
| CN108107658B (en) | Light-source system, optical projection system and lighting device | |
| CN208969415U (en) | Lighting system, control unit and projection arrangement | |
| US10288992B2 (en) | Laser light source for projector and laser projection device | |
| CN208819007U (en) | Lighting system | |
| CN107145029B (en) | Light supply apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180824 |
|
| WD01 | Invention patent application deemed withdrawn after publication |