CN108535944A

CN108535944A - Laser light source and its control method

Info

Publication number: CN108535944A
Application number: CN201810335976.2A
Authority: CN
Inventors: 彭水海
Original assignee: Chengdu Nine Day Optical Technology Co Ltd
Current assignee: Chengdu Nine Day Optical Technology Co Ltd
Priority date: 2018-04-16
Filing date: 2018-04-16
Publication date: 2018-09-14
Anticipated expiration: 2038-04-16
Also published as: CN108535944B

Abstract

The invention discloses a kind of laser light sources, including：Lasing light emitter, the first concentration module, the first diffusion sheet, the first focus module, fluorescent powder wheel, the second focus module, optical wand, diffusion unit and light splitting switch element, it is divided switch element state for the moment, is divided switch element by the laser reflection for excitated fluorescent powder from the first diffusion sheet to the second focus module；When state two, switch element is divided by the laser reflection from the first diffusion sheet to the second focus module.The invention also discloses a kind of laser light source control methods, including：Step 1: adjustment light splitting switch element state is state one；Step 2: output fluorescent powder wheel issued light or fluorescent powder wheel sent out and it is filtered wheel corresponding region colour filter after or after the second diffusion sheet gained light；Step 3: adjustment light splitting switch element state is state two；Step 4: output lasing light emitter issued light.The configuration of the present invention is simple, small, optical efficiency is high, can also be compatible with various light source packages.

Description

Laser light source and its control method

Technical field

The present invention relates to luminous source domains, and in particular to a kind of light source based on laser of laser-projector.

Background technology

Laser projection compares conventional projectors at present, has many advantages, such as that long lifespan, colour gamut are wide and easy to maintain.Now, Light source part generally uses single blue laser, obtains green light, yellow light after laser excitation green, yellow fluorescent powder, then filtered by yellow light Feux rouges is obtained, so that light source is exported red, yellow, blue and green light in this way or obtains red, blue and green light.Such as：Document 1, a kind of segmentation are glimmering Tabula rasa formula laser projection, notification number：CN206270637U, authorized announcement date：2017.06.20.But existed using monochromatic source One problem：Feux rouges color is not bright-coloured enough, and feux rouges is obtained by filtration using filter plate by blue laser excitation yellow light, and light turns It is very low to change efficiency, entirety leads to red dark, level fuzzy when showing video and picture.

Therefore, on the basis of the above blue laser light source, individual red laser source is increased, to make up above-mentioned ask Topic.But structural complexity is obviously improved, and volume also obviously increases.Such as：Document 2, a kind of two-color laser light sources project machine, bulletin Number：CN206224129U, authorized announcement date：2017.06.06；Document 3, a kind of wheeled projector of two-color laser fluorescence, bulletin Number：CN206270638U, authorized announcement date：22017.06.20；Document 4, a kind of two-color laser light source, notification number： CN105093795A, authorized announcement date：2015.11.25.In these schemes or using 4 or more speculum or Different lens sets, thus volume bigger, cost higher are used for different laser or fluorescence.

It is being most in the market the scheme for using three color laser light sources, color and brightness performance are good, but same structure is complicated, Volume is larger, and cost is higher.Such as：Document 5, laser projection, notification number：CN101067683A；Publication date： 2007.11.07；Document 6, light supply apparatus, notification number：CN107145029A, authorized announcement date：2017.09.08.

Existing laser light source still has improved space.Above-mentioned three kinds of light source packages are in addition to complicated, optical mirror slip More, corresponding cost is higher, volume is larger outer, also deposits following problem：

1, since complicated, eyeglass are more (including speculum), light path is longer, and optical efficiency is relatively low；

2, poor universality is exchanged between three kinds of light source packages (monochromatic, double-colored and three laser light sources), increased or decreased sharp Light source may must all increase or decrease corresponding overall structure, such as the lens systems of speculum, corresponding laser, be both needed to additional Prepare mold, increases production cost.

To solve drawbacks described above in the prior art, the present invention proposes a kind of new solution.

Invention content

Problems with to be solved by this invention to be, that the laser light sources of existing three types is deposited：

1, structure is more complex, and volume is larger；

2, optical mirror slip is more, therefore cost is higher；

3, optical mirror slip is more, and in particular for multiple reflections, light path is also therefore longer, and optical efficiency is relatively low；

4, the mutual difference of laser light source structure of three types is very big, cannot mutually be compatible with, and needs independent mold developing, increases Development cost are added.

Technical problem proposed by the invention solves in this way：A kind of laser light source is provided, including：

Lasing light emitter, the lasing light emitter for providing a kind of, two or more colors；

First concentration module for the laser that lasing light emitter emits to be collimated and compressed, and projects the first diffusion sheet On；

First diffusion sheet for eliminating laser speckle, while making the hot spot reached on fluorescent powder wheel uniform, fluorescence excitation It is efficient；

First focus module converges laser of the reception from the first diffusion sheet and projects fluorescent powder wheel, simultaneously The fluorescence being excited on fluorescent powder wheel is carried out receiving light and convergence and projects the second focus module；

Fluorescent powder wheel, is divided into one, two or more phosphor areas, wherein at least one phosphor area, by Fluorescence is sent out after to laser excitation；

Second focus module carries out further closing light to light beam and projects diffusion unit；

Optical wand carries out even light action to light beam；

Further include：

Diffusion unit is that colour filter colour wheel or the second diffusion sheet of vibration or rotation, colour filter colour wheel are divided into two or more Region is wherein at least provided with quantity diffusion panel region corresponding with the laser color quantity of lasing light emitter, spreads the expansion of panel region Discrete piece is coated with anti-reflection film corresponding with laser color, speckle of the diffusion panel region for further eliminating laser, remaining area respectively Domain is set as white glass, the optical filter of corresponding color or hollow out, speckle of the discrete piece region for further eliminating laser；Second Diffusion sheet is used for the speckle except laser, while through the fluorescence of other colors；

It is divided switch element, the laser of reflection and lasing light emitter color-match, and transmits other color of light；

Being divided switch element has two states, respectively state one and state two,

State for the moment, is divided switch element by the laser reflection for excitated fluorescent powder from the first diffusion sheet to second Focus module, laser irradiate fluorescent powder wheel after the focusing of the second focus module, and the phosphor area on fluorescent powder wheel inspires The fluorescence of corresponding color, fluorescence, which is focused by the second focus module and penetrates light splitting switch element, projects the second focus module, Through the second focus module focusing after fluorescence using corresponding color on the second diffusion sheet or colour filter colour wheel optical filter, white glass Glass region or hollow out, finally project optical wand；

When state two, switch element is divided by the laser reflection from the first diffusion sheet to the second focus module, through second Laser after focus module focusing, optical wand is irradiated to using the diffusion sheet for being coated with corresponding color anti-reflection film on colour filter colour wheel.

Further, the light splitting switch element is dichroscope that is rotatable and can navigating at least two angles, institute The laser for stating dichroscope reflection and lasing light emitter color-match, transmits other color of light；

In at least two angles that the dichroscope is positioned, one of angle corresponds to the state one, another Angle corresponds to the state two.

Further, the lasing light emitter, for providing blue laser；

The light splitting switch element, reflection blue laser transmit other color of light；For the moment, the light splitting switchs state Element focuses the laser reflection for excitated fluorescent powder from the first diffusion sheet to the second focus module, laser by second Module irradiates fluorescent powder wheel after focusing, and the phosphor area on fluorescent powder wheel inspires the fluorescence of corresponding color, and fluorescence passes through the Two focus modules, which focus and penetrate the light splitting switch element, projects the second focus module, after the focusing of the second focus module Fluorescence is finally thrown using optical filter, white glass region or the hollow out of corresponding color on the second diffusion sheet either colour filter colour wheel It is mapped to optical wand；When state two, the light splitting switch element passes through the laser reflection from the first diffusion sheet to the second focus module Laser after the focusing of second focus module, using the expansion for being coated with corresponding color anti-reflection film on the second diffusion sheet or colour filter colour wheel Discrete piece is irradiated to optical wand；

The fluorescent powder wheel includes two phosphor areas, and the first phosphor area is green emitting phosphor region, and second is glimmering Light powder region is yellow fluorescent powder region；

When the diffusion unit is set as the colour filter colour wheel, the colour filter colour wheel includes four regions, and first area is set It is set to Red lightscreening plate, second area is set as green color filter or white glass；Third region is set as diffusion panel region, the area The diffusion sheet in domain is coated with through blue light and reflects the anti-reflection film of other color of light；The fourth region is set as white glass, for passing through Yellow fluorescence；

When the diffusion unit is set as second diffusion sheet, second diffusion sheet is upper and lower directions or multiple sides To what is vibrated or rotate, the speckle for eliminating laser.

Further, the fluorescent powder wheel, further includes third phosphor area, and third phosphor area is red fluorescence Powder region；

The first area is set as Red lightscreening plate or white glass.

Further, the lasing light emitter, provides blue laser and red laser；

The light splitting switch element, reflection blue laser and red laser, transmit other color of light；State a period of time, institute It states light splitting switch element and the blue laser for excitated fluorescent powder from the first diffusion sheet is reflected into the second focus module, swash Light irradiates fluorescent powder wheel after the focusing of the second focus module, and the phosphor area on fluorescent powder wheel inspires the glimmering of corresponding color Light, fluorescence, which is focused by the second focus module and penetrates the light splitting switch element, projects the second focus module, poly- through second Burnt module focus after fluorescence using the optical filter of corresponding color on the second diffusion sheet or colour filter colour wheel, white glass region or Person's hollow out, finally projects optical wand；When state two, the light splitting switch element is by blue laser from the first diffusion sheet or red Color laser reflection is to the second focus module, the laser after the focusing of the second focus module, using the second diffusion sheet or colour filter The diffusion sheet that corresponding color anti-reflection film is coated on colour wheel is irradiated to optical wand；

The fluorescent powder wheel includes two regions, and the first phosphor area is green emitting phosphor region, the second fluorescent powder area Domain is yellow fluorescent powder region；

When the diffusion unit is set as the colour filter colour wheel, the colour filter colour wheel includes four regions, and first area is set It is set to diffusion panel region, the diffusion sheet in the region is coated with through feux rouges and reflects the anti-reflection film of other color of light；Second area is set It is set to green color filter or white glass；Third region is set as diffusion panel region, and the diffusion sheet in the region is coated with through blue light simultaneously Reflect the anti-reflection film of other color of light；The fourth region is set as white glass, for passing through yellow fluorescence；

Further, the lasing light emitter provides blue laser, red laser and green laser；

The fluorescent powder wheel includes a phosphor area, and the first phosphor area is yellow fluorescent powder region；

The light splitting switch element, reflection blue laser, red laser and green laser transmit other color of light；Shape For the moment, the blue laser for excitated fluorescent powder from the first diffusion sheet is reflected into second and gathered state by the light splitting switch element Burnt module, laser irradiate fluorescent powder wheel after the focusing of the second focus module, and the phosphor area on fluorescent powder wheel inspires Huang Color fluorescence, yellow fluorescence, which is focused by the second focus module and penetrates the light splitting switch element, projects the second focus module, Fluorescence after the focusing of the second focus module is finally projected using the fourth region on the second diffusion sheet or colour filter colour wheel Optical wand；When state two, the light splitting switch element is by blue laser, red laser or green laser from the first diffusion sheet It is reflected into the second focus module, the laser after the focusing of the second focus module, using on the second diffusion sheet or colour filter colour wheel The diffusion sheet for being coated with corresponding color anti-reflection film is irradiated to optical wand；

When the diffusion unit is set as the colour filter colour wheel, the colour filter colour wheel includes four regions, and first area is set It is set to diffusion panel region, the diffusion sheet in the region is coated with through feux rouges and reflects the anti-reflection film of other color of light；Second area expands The diffusion sheet in discrete piece region, the region is coated with through green light and reflects the anti-reflection film of other color of light；Third region is set as expanding The diffusion sheet in discrete piece region, the region is coated with through blue light and reflects the anti-reflection film of other color of light；The fourth region is set as white Glass or hollow out, for passing through yellow fluorescence；

The present invention also provides a kind of control methods of laser light source, include the following steps：

Step 1: adjustment light splitting switch element state is state one：It is from glimmering when the laser light source needs the light exported Light powder wheel, or from fluorescent wheel and it is filtered wheel corresponding region colour filter or the second diffusion sheet after gained light, control light splitting open It closes element and remains state one, the blue laser from the first diffusion sheet is reflected towards the first focus module；

Step 2: wheel corresponding region colour filter that output fluorescent powder wheel issued light or fluorescent powder wheel are sent out and filtered The light of gained afterwards or after the second diffusion sheet：Fluorescent powder wheel passes through successively with rotation, output one kind, two or more fluorescence The first focus module, the first diffusion sheet, light splitting switch element and the second focus module are crossed, then projects to synchronize with fluorescent powder wheel and turn Behind the corresponding region of dynamic filter wheel or the second diffusion sheet, finally projects optical wand and realize output；

Step 3: adjustment light splitting switch element state is state two：When the laser light source needs output light to be directly from When the light of gained, light splitting switch element is controlled after lasing light emitter and the corresponding diffusion panel region of filtered wheel or after the second diffusion sheet State two is remained, by the laser reflection of one kind, two or more colors from the first diffusion sheet to the first focus module；

Step 4: output lasing light emitter issued light：Be divided switch element by from the first diffusion sheet one kind, two kinds or more The laser reflection of kind color focuses mould to the second focus module, using turning to just to correspond to diffusion sheet regional alignment second After the colour filter colour wheel or the second dispersible tablet of block, projects optical wand and realize output.

Further, the control method of the laser light source, includes the following steps：

Step 1: adjustment light splitting switch element state is state one：This laser light source need to export respectively yellow, red and When green light, control light splitting switch element remains state one, and the blue laser from the first diffusion sheet, which is reflected towards first, to be gathered Burnt module；

Step 2: output yellow light：Fluorescent powder wheel turns to just at this time focuses mould with the second phosphor area alignment first Block, and excited by blue laser and send out yellow fluorescence, yellow fluorescence passes through first the first diffusion sheet of focus module, light splitting successively Switch element, the second focus module and just turn to the fourth region be aligned the second focus module colour filter colour wheel or second After diffusion sheet, projects optical wand and export yellow light；

Step 3: output feux rouges：Although fluorescent powder wheel is rotating, still first is directed at the second phosphor area at this time Focus module, and excited by blue laser and send out yellow fluorescence, yellow fluorescence passes through the first focus module first and spreads successively Piece is divided switch element, the second focus module and turns to the colour filter colour wheel for being directed at the second focus module with first area just Afterwards, feux rouges is filtered out by yellow light to project optical wand and export feux rouges；When using the second diffusion sheet, fluorescent wheel further includes third fluorescence Powder region, third phosphor area are red fluorescence powder region, and the red fluorescence that third phosphor area is excited passes through successively First the first diffusion sheet of focus module, light splitting switch element, the second focus module and the second diffusion sheet project optical wand and export Feux rouges；

Step 4: output green light：Fluorescent powder wheel is rotated further, and is directed at the first focus module with the first phosphor area, First phosphor area is excited by blue laser and sends out green fluorescence, and green fluorescence passes through the first focus module first and expands successively Discrete piece is divided switch element, the second focus module and turns to the colour filter color for being directed at the second focus module with second area just After wheel or the second diffusion sheet, projects optical wand and export green light light；

Step 5: adjustment light splitting switch element state is state two：When this laser light source needs output blue light, it will be divided Switch element is adjusted to state two by state one；

Step 6: output blue light：Blue laser from the first diffusion sheet is reflected towards the second focusing by light splitting switch element Module is thrown after turning to colour filter colour wheel or the second diffusion sheet with the second focus module of third regional alignment just It is mapped to optical wand and exports blue light；

Step 7: returning to step 1, and subsequent step is carried out successively；So cycle, realizes that this laser light source is sequentially output Yellow, red, green and blue light.

Step 1: adjustment light splitting switch element state is state one：This laser light source needs to export yellow and green respectively Light time, control light splitting switch element remain state one, the blue laser from the first diffusion sheet are reflected towards the first focusing mould Block；

Step 3: output green light：Fluorescent powder wheel is rotated further, and is directed at the first focus module with the first phosphor area, First phosphor area is excited by blue laser and sends out green fluorescence, and green fluorescence passes through the first focus module first and expands successively Discrete piece is divided switch element, the second focus module and turns to the colour filter color for being directed at the second focus module with second area just After wheel or the second diffusion sheet, projects optical wand and export green light light；

Step 4: adjustment light splitting switch element state is state two：This laser light source needs to export feux rouges and blue respectively Light splitting switch element is adjusted to state two by the light time by state one；

Step 5: output feux rouges：Output：Lasing light emitter sends out red laser, and light splitting switch element will come from the first diffusion sheet Red laser be reflected towards the second focus module, using turn to just with first area be aligned the second focus module colour filter After colour wheel or the second diffusion sheet, projects optical wand and export feux rouges；

Step 6: output blue light：Lasing light emitter sends out blue laser, is divided switch element by the blue from the first diffusion sheet Laser reflection to the second focus module, using turning to just with the colour filter colour wheel of the 3rd the second focus module of regional alignment or After the second diffusion sheet of person, projects optical wand and export blue light；

Step 7: returning to step 1, and subsequent step is carried out successively；So cycle, realizes that this laser light source is sequentially output Yellow, green, red and blue light.

Step 1: adjustment light splitting switch element state is state one：When this laser light source needs to export sodium yellow, control point Switching element remains state one, and the blue laser from the first diffusion sheet is reflected towards the first focus module；

Step 2: output yellow light：Fluorescent powder wheel turns to just at this time focuses mould with the first phosphor area alignment first Block, and excited by blue laser and send out yellow fluorescence, yellow fluorescence passes through first the first diffusion sheet of focus module, light splitting successively Switch element, the second focus module and just turn to the fourth region be aligned the second focus module colour filter colour wheel or second After diffusion sheet, projects optical wand and export yellow light；

Step 3: adjustment light splitting switch element state is state two：This laser light source needs to export feux rouges, green and blue respectively When coloured light, light splitting switch element is adjusted to state two by state one；

Step 4: output feux rouges：Output：Lasing light emitter sends out red laser, and light splitting switch element will come from the first diffusion sheet Red laser be reflected towards the second focus module, using turn to just with first area be aligned the second focus module colour filter After colour wheel or the second diffusion sheet, projects optical wand and export feux rouges；

Step 5: output green light：Lasing light emitter sends out green-emitting laser, and light splitting switch element will be from the green of the first diffusion sheet Color laser reflection is to the second focus module, using turning to the colour filter colour wheel for being directed at the second focus module with second area just Or second after diffusion sheet, projects optical wand and exports blue light；

Step 6: output blue light：Lasing light emitter sends out blue laser, is divided switch element by the blue from the first diffusion sheet Laser reflection to the second focus module, using turning to just with the colour filter colour wheel of the second focus module of third regional alignment or After the second diffusion sheet of person, projects optical wand and export blue light；

The invention has the advantages that：

1, simple in structure, volume-diminished：(1) relatively existing laser light source, because there is no need multiple reflections to form square Shape light path at least reduces the quantity of speculum, also it is corresponding reduce formed the required volume of rectangle light path (such as：Document 1 to 6)；(2) although all being handled by corresponding optical element with fluorescence per laser of the same colour in the present invention and ensure that quality (passes through filter wheel On corresponding region, complete and matched optical treatment can be all passed through per laser of the same colour or fluorescence), due to being swashed using one to three kind Light source into cross light path and amount of parts it is all identical, compared to the laser light for doing branch independent process for each color laser Source also simplifies the corresponding lens systems of branch process, at the same ensure that processing quality (such as：Document 2,5).

2, optical mirror slip is saved, to cost-effective：Because simplifying structure, decrease accordingly speculum and/or its The use of his eyeglass, to cost-effective；

3, shorten light path, to improve optical efficiency：Mainly due to order of reflection is reduced, light path is shortened, to carry High optical efficiency；

4, by all identical into the light path and amount of parts crossed using one to three kind of lasing light emitter institute, lasing light emitter need to be changed Number of colours setting, the subregion setting of fluorescent wheel and the subregion of filter wheel be arranged, and overall structure varies without, therefore, Ke Yijian Holding various light source packages, this has having very important significance for actual production, can greatly be compatible with different types of machines, to Mould development is reduced to take (general 30~1,000,000).

Description of the drawings

Fig. 1 is structural representation and the schematic diagram of the state one of the embodiment of the present invention one；

Fig. 2 is structural representation and the schematic diagram of the state two of the embodiment of the present invention one；

Fig. 3 is structural representation and the schematic diagram of the state one of the embodiment of the present invention two；

Fig. 4 is structural representation and the schematic diagram of the state two of the embodiment of the present invention two；

Fig. 5 is structural representation and the schematic diagram of the state one of the embodiment of the present invention three；

Fig. 6 is structural representation and the schematic diagram of the state two of the embodiment of the present invention three；

Fig. 7 is structural schematic diagram (the setting green and Huang of one embodiment of fluorescent wheel 8 in the embodiment of the present invention one and two Color phosphor area)；

Fig. 8 be another embodiment of fluorescent wheel 8 in the embodiment of the present invention one and two structural schematic diagram (setting is red, Green and yellow fluorescent powder region)；

Fig. 9 is structural schematic diagram (the only setting yellow fluorescent powder of one embodiment of fluorescent wheel 8 in the embodiment of the present invention three Region)；

Figure 10, which is the structural schematic diagram of one embodiment of filter wheel 10 in the embodiment of the present invention one, two and three, (has three A region, the case where being exported for no yellow fluorescence)；

Figure 11, which is the structural schematic diagram of another embodiment of filter wheel 10 in the embodiment of the present invention one, two and three, (to be had Four regions, for there is the case where yellow fluorescence output)；

It should be noted that the quantity on circle, position and circle that each region of fluorescent wheel and filter wheel is shown in figure Shared angle is only used as referring on week, is determined with specific reference to actual demand, but fluorescent powder wheel and each region of colour filter colour wheel are phases It is mutually matched.

Wherein,

Laser light source (1)；First concentration module, including：Collimation lens (2), compression eyeglass (3)；First diffusion module, packet It includes：First diffusion sheet (4)；It is divided switch element (5)；First focus module；First focusing lens (6)；Second focusing lens (7)；Fluorescent powder wheel (8)；Second focus module：Tertiary focusing eyeglass (9)；Colour filter colour wheel (10)；Optical wand (11).

【Following grey parts do not have to check, and are temporary for future reference】

Specific implementation mode

The present invention will be further described below with reference to the drawings.

Embodiment one

As shown in Figure 1, 2, the laser light source, including：Lasing light emitter (1), the first concentration module, the first diffusion sheet (4), first Focus module, light splitting switch element (5), the second focus module, diffusion unit and optical wand (11).

Lasing light emitter (1), for providing blue laser.

First concentration module for the laser that lasing light emitter (1) emits to be collimated and compressed, and projects the first diffusion On piece (4).In the present embodiment, the first concentration module includes collimation lens (2) and compression eyeglass (3), is respectively used to collimated ray And compression context.

First diffusion sheet (4) for eliminating laser speckle, while making the hot spot reached on fluorescent powder wheel (8) uniform, glimmering Light stimulates the efficiency is high.

First focus module, for being converged to laser of the reception from the first diffusion sheet (4) and projecting fluorescent powder It takes turns (8), while the fluorescence being excited on fluorescent powder wheel (8) is carried out receiving light and convergence and projects the second focus module.This reality It applies in example, the first focus module is made of the first focusing lens (6) and the second focusing lens (7), and an eyeglass can also be used.

As shown in fig. 7, fluorescent powder wheel (8) comprising two regions, the first phosphor area (8a) are green emitting phosphor area Domain, the second phosphor area (8b) are yellow fluorescent powder region；

It is divided switch element (5), reflection blue laser transmits other color of light；It is divided there are two types of switch element (5) tools State, respectively state one and state two.The light splitting switch element (5) can be selected as rotatable and energy in the present embodiment The dichroscope of at least two angles is navigated to, the dichroscope reflection blue laser transmits other color of light.Described two to In at least two angles that Look mirror is positioned, one of angle corresponds to the state one, another angle corresponds to the state Two.

For the moment, the dichroscope arrives the laser reflection for excitated fluorescent powder from the first diffusion sheet (4) to state Second focus module, laser irradiate fluorescent powder wheel (8), the fluorescent powder on fluorescent powder wheel (8) after the focusing of the second focus module Region inspires the fluorescence of corresponding color, and fluorescence, which is focused by the second focus module and penetrates the dichroscope, projects second Focus module, the fluorescence after the focusing of the second focus module is using corresponding color on the second diffusion sheet or colour filter colour wheel (10) Optical filter, white glass region or hollow out, finally project optical wand (11).

When state two, light splitting switch element (5) will come from the laser reflection of the first diffusion sheet (4) to the second focus module, Laser after the focusing of the second focus module, it is anti-reflection using corresponding color is coated on the second diffusion sheet or colour filter colour wheel (10) The diffusion sheet of film is irradiated to optical wand (11).

Second focus module carries out further closing light to light beam and projects colour filter colour wheel (10).In the present embodiment, second Focus module is tertiary focusing eyeglass (9).

Diffusion unit, shown diffusion unit are colour filter colour wheel (10) either upper and lower directions or multiple directions vibration or rotation The second diffusion sheet.

Second diffusion sheet is used for the speckle except laser, while through the fluorescence of other colors, is applied to color requirement The case where not high occasion or lasing light emitter (1) need not filter when providing red, three color laser light source of green and blue.It is main It to realize and the dynamic of speckle is eliminated by allowing the second diffusion sheet by rotating or vibrating.First diffusion sheet 4 is stationary , it is limited to eliminate speckle effect.

As shown in Figure 10, the colour filter colour wheel (10), it may include three regions, first area (10a) are set as red filter Mating plate, second area (10b) are set as green color filter, white glass or hollow out；Third region (10c) is set as diffusion section The diffusion sheet in domain, the region is coated with through blue light and reflects the anti-reflection film of other color of light.

As shown in figure 11, it is preferred that in order to promote brightness, need to export yellow light, the colour filter colour wheel (10) further includes the Four regions (10d), the fourth region (10d) is set as white glass or hollow out, for passing through yellow fluorescence.

Since the wave-length coverage of laser is smaller, which still can transmit other waves in visible-range to mirror Long light.In actual use, if using redgreenblue merely, although the good whole luminous flux of color is low.And it is being added After yellow light, then white screen luminous flux can be significantly promoted.It is preferred, therefore, that still obtaining wide range high-energy using yellow fluorescent powder Yellow light simultaneously exports yellow light.

In this embodiment, because when this laser light source exports yellow and green light, light splitting switch element (5) is state One, output red and blue are photochromic, and light splitting switch element (5) is state two.In order to avoid frequent switching state, first area (10a) and third region (10c) is to be disposed adjacent, and second area (10b) and the fourth region (10d) are to be disposed adjacent.

At this point, first area (10a) and the position circumferentially of the fourth region (10d) are corresponding with angle circumferentially Second phosphor area (8b) position circumferentially and angle circumferentially.

Angle on the position and circumference of first area (10a) circumferentially corresponds to circle where the second phosphor area (8b) Position on week and angle circumferentially.Angle on the position and circumference of second area (10b) circumferentially corresponds to first Phosphor area (8a).

Optical wand (11) carries out even light action to light beam.At any moment of this laser light source work, the optical wand (11) is all Only receive a kind of light of color.

As described in Figure 8, optionally, the fluorescent powder wheel (8) further includes third phosphor area (8c), third fluorescent powder Region (8c) is red fluorescence powder region；

At this point, the first area (10a) is set as Red lightscreening plate, white glass or hollow out.

Temperature is high when red glimmering powder is excited, and efficiency is low, is easy cracking.Therefore optionally.

Laser light source can be considered point light source, is all emitted after collimation, the included collimation having, and has plenty of and separately increases standard Directly.It is accordingly to be regarded as directional light when being emitted to above the first concentration module.

【Control method】

【Control method one (A)】

【Structure】Control method one (A), this method are based on the laser light source structure described in embodiment one, using colour filter colour wheel (10), by taking this laser light source is sequentially output yellow, red, green and blue light as an example.Wherein,

1, fluorescent wheel (8) is only arranged there are two region, and the first phosphor area (8a) is green emitting phosphor region, and second is glimmering Light powder region (8b) is yellow fluorescent powder region；

2, there are four regions for colour filter colour wheel (10) setting, and first area (10a) is set as Red lightscreening plate, second area (10b) is set as green color filter, white glass or hollow out, and third region (10c) is set as diffusion panel region, the expansion in the region Discrete piece is coated with through blue light and reflects the anti-reflection film of other color of light, and the fourth region (10d) is set as white glass or hollow out, uses In passing through yellow fluorescence；

3, fluorescent powder wheel (8) and colour filter colour wheel (10) are mutually in step rotation；

4, mutual of shared angle on the quantity of the first phosphor area (8a) and second area (10b), position and circumference Match；

5, the second phosphor area (8b) respectively with first area (10a), quantity, position and the circle of the fourth region (10d) Shared angle is mutually matched on week, that is, first area (10a), the fourth region (10d) are in addition to position and the second fluorescent powder area Domain (8b) is corresponding outer, in quantity altogether and circumference shared angle also in the second phosphor area (8b) total quantity and circumference The correspondence of shared total angle.

【Method】Control method one (A) includes the following steps：

Step 1: adjustment light splitting switch element (5) state is state one：This laser light source needs to export yellow, red respectively When color and green light, control light splitting switch element (5) remains state one, and the blue laser that will come from the first diffusion sheet (4) is anti- The first focus module of directive；

Step 2: output yellow light：Fluorescent powder wheel (8) turns to just at this time is directed at first with the second phosphor area (8b) Focus module, and excited by blue laser and send out yellow fluorescence, yellow fluorescence passes through the first focus module first and spreads successively Piece (4), light splitting switch element (5), the second focus module and lucky turn to are directed at the second focus module with the fourth region (10d) Colour filter colour wheel (10) after, project optical wand (11) and export yellow light；

Step 3: output feux rouges：Fluorescent powder wheel (8) is although rotating, at this time still with the second phosphor area (8b) It is directed at the first focus module, and is excited by blue laser and sends out yellow fluorescence, yellow fluorescence passes through the first focus module successively First diffusion sheet (4), light splitting switch element (5), the second focus module and lucky turn to are directed at second with first area (10a) After the colour filter colour wheel (10) of focus module, feux rouges is filtered out by yellow light and projects optical wand (11) and exports feux rouges；

Step 4: output green light：Fluorescent powder wheel (8) is rotated further, and poly- with the first phosphor area (8a) alignment first Burnt module, the first phosphor area (8a) are excited by blue laser and send out green fluorescence, and it is poly- that green fluorescence passes through first successively The first diffusion sheet of burnt module (4), light splitting switch element (5), the second focus module and just turn to it is right with second area (10b) After the colour filter colour wheel (10) of accurate second focus module, projects optical wand (11) and export green light light；

Step 5: adjustment light splitting switch element (5) state is state two：It, will when this laser light source needs output blue light Light splitting switch element (5) is adjusted to state two by state one；

Step 6: output blue light：Blue laser from the first diffusion sheet (4) is reflected towards the by light splitting switch element (5) Two focus modules after the colour filter colour wheel (10) of the second focus module of third region (10c) alignment, are thrown using turning to just It is mapped to optical wand (11) and exports blue light；

Step 7: returning to step 1, and subsequent step is carried out successively；So cycle, realizes that this laser light source is sequentially output Yellow, red, green and blue light purpose.

【Control method one (B)】

【Structure】Control method one (B), on the basis of control method one (A) and its product embodiments being based on, will Colour filter filter wheel (10) therein replaces with the second diffusion sheet, other are constant.

【Method】Control method one (B) and control method one (A) difference lies in：In step 2 to four and six, come Light from all colours of the second focus module is all to project optical wand (11) by the second diffusion sheet.

Embodiment two

As shown in Figure 3,4, embodiment two be based on embodiment one, with embodiment one difference lies in：

The lasing light emitter (1) also provides red laser in addition to providing blue laser；

The light splitting switch element (5), reflection blue laser and red laser, transmit other color of light；State a period of time, The blue laser for excitated fluorescent powder from the first diffusion sheet (4) is reflected into second and gathered by the light splitting switch element (5) Burnt module, laser irradiate fluorescent powder wheel (8) after the focusing of the second focus module, and the phosphor area on fluorescent powder wheel (8) swashs The fluorescence of corresponding color is sent out, fluorescence, which is focused by the second focus module and penetrates the light splitting switch element (5), projects Two focus modules, the fluorescence after the focusing of the second focus module on the second diffusion sheet or colour filter colour wheel (10) using corresponding to face Optical filter, white glass region or the hollow out of color, finally project optical wand (11)；When state two, the light splitting switch element (5) The blue laser for coming from the first diffusion sheet (4) or red laser are reflected into the second focus module, focused through the second focus module Laser afterwards is irradiated to light using the diffusion sheet for being coated with corresponding color anti-reflection film on the second diffusion sheet or colour filter colour wheel (10) Stick (11)；

As shown in figure 11, when the diffusion unit is set as colour filter colour wheel (10), the colour filter colour wheel (10) includes four Region, first area (10a) are set as diffusion panel region, and the diffusion sheet in the region is coated with through feux rouges and reflects other color of light Anti-reflection film；Second area (10b), third region (10c) and the fourth region (10d) are identical as embodiment one；

It is identical as embodiment one when the diffusion unit is set as second diffusion sheet.

【Control method two (A)】

【Structure】Control method two (A), this method are based on the laser light source structure described in embodiment two, using colour filter colour wheel (10), by taking this laser light source is sequentially output yellow, green, red and blue light as an example.Wherein,

1, fluorescent powder wheel (8) and colour filter colour wheel (10) are mutually in step rotation；

2, mutual of shared angle on the quantity of the first phosphor area (8a) and second area (10b), position and circumference Match；

3, mutual of shared angle on the quantity of the second phosphor area (8b) and the fourth region (10d), position and circumference Match.

【Method】Control method two (A) includes the following steps：

Step 1: adjustment light splitting switch element (5) state is state one：This laser light source needs to export yellow and green respectively When coloured light, control light splitting switch element (5) remains state one, and the blue laser from the first diffusion sheet (4) is reflected towards the One focus module；

Step 3: output green light：Fluorescent powder wheel (8) is rotated further, and poly- with the first phosphor area (8a) alignment first Burnt module, the first phosphor area (8a) are excited by blue laser and send out green fluorescence, and it is poly- that green fluorescence passes through first successively The first diffusion sheet of burnt module (4), light splitting switch element (5), the second focus module and just turn to it is right with second area (10b) After the colour filter colour wheel (10) of accurate second focus module, projects optical wand (11) and export green light light；

Step 4: adjustment light splitting switch element (5) state is state two：This laser light source needs to export feux rouges and indigo plant respectively When coloured light, light splitting switch element (5) is adjusted to state two by state one；

Step 5: output feux rouges：Output：Lasing light emitter (1) sends out red laser, and light splitting switch element (5) will come from first The red laser of diffusion sheet (4) is reflected towards the second focus module, and second is directed at first area (10a) using turning to just After the colour filter colour wheel (10) of focus module, projects optical wand (11) and export feux rouges；

Step 6: output blue light：Lasing light emitter (1) sends out blue laser, and light splitting switch element (5) will come from the first diffusion sheet (4) blue laser is reflected towards the second focus module, and mould is focused with the 3rd region (10c) alignment second using turning to just After the colour filter colour wheel (10) of block, projects optical wand (11) and export blue light；

Step 7: returning to step 1, and subsequent step is carried out successively；So cycle, realizes that this laser light source is sequentially output Yellow, green, red and blue light purpose.

【Control method two (B)】

【Structure】Control method two (B), on the basis of control method two (A) and its product embodiments being based on, will Colour filter filter wheel (10) therein replaces with the second diffusion sheet, other are constant.

【Method】Control method two (B) and control method two (A) difference lies in：Step 2: in three, five and six, come Light from all colours of the second focus module is all to project optical wand (11) by the second diffusion sheet.

Embodiment three

As shown in Figure 3,4, the basic embodiment two of embodiment three, with embodiment two difference lies in：

The lasing light emitter (1) also provides green laser other than providing blue laser, red laser；

The light splitting switch element (5), reflection blue laser, red laser and green laser transmit other color of light； For the moment, the blue laser for excitated fluorescent powder that the light splitting switch element (5) will come from the first diffusion sheet (4) reflects state To the second focus module, laser irradiates fluorescent powder wheel (8), the fluorescence on fluorescent powder wheel (8) after the focusing of the second focus module Powder region inspires the fluorescence of yellow color, and yellow fluorescence is focused by the second focus module and penetrates the light splitting switch element (5) the second focus module is projected, the fluorescence after the focusing of the second focus module is using the second diffusion sheet or colour filter colour wheel (10) optical filter of corresponding color, white glass region or hollow out on, finally project optical wand (11)；When state two, described point Blue laser, red laser or red laser from the first diffusion sheet (4) are reflected into the second focusing by switching element (5) Module, the laser after the focusing of the second focus module, using being coated with corresponding face on the second diffusion sheet or colour filter colour wheel (10) The diffusion sheet of color anti-reflection film is irradiated to optical wand (11)；

As shown in figure 9, the fluorescent powder wheel (8) only includes a region, the first phosphor area (8a) is yellow fluorescence Powder region；

As shown in figure 11, when the diffusion unit is set as colour filter colour wheel (10), the colour filter colour wheel (10) includes Four regions, first area (10a), third region (8c) and four regions (10d) are identical as embodiment two；Second area (10b) Panel region is spread, the diffusion sheet in the region is coated with through green light and reflects the anti-reflection film of other color of light.

It is identical as embodiment two when the diffusion unit is set as second diffusion sheet.

【Control method three (A)】

【Structure】Control method three (A), this method are based on the laser light source structure described in embodiment three, using colour filter colour wheel (10), by taking this laser light source is sequentially output yellow, red, green and blue light as an example.

Step 1: adjustment light splitting switch element (5) state is state one：When this laser light source needs to export sodium yellow, control System light splitting switch element (5) remains state one, and the blue laser from the first diffusion sheet (4) is reflected towards the first focusing mould Block；

Step 2: output yellow light：Fluorescent powder wheel (8) turns to just at this time is directed at first with the first phosphor area (8a) Focus module, and excited by blue laser and send out yellow fluorescence, yellow fluorescence passes through the first focus module first and spreads successively Piece (4), light splitting switch element (5), the second focus module and lucky turn to are directed at the second focus module with the fourth region (10d) Colour filter colour wheel (10) after, project optical wand (11) and export yellow light；

Step 3: adjustment light splitting switch element (5) state is state two：This laser light source needs to export feux rouges, green respectively When with blue light, light splitting switch element (5) is adjusted to state two by state one；

Step 4: output feux rouges：Lasing light emitter (1) sends out red laser, and light splitting switch element (5) will come from the first diffusion sheet (4) red laser is reflected towards the second focus module, and mould is focused with first area (10a) alignment second using turning to just After the colour filter colour wheel (10) of block, projects optical wand (11) and export feux rouges；

Step 5: output green light：Lasing light emitter (1) sends out green-emitting laser, and light splitting switch element (5) will come from the first diffusion The green laser of piece (4) is reflected towards the second focus module, is focused with second area (10b) alignment second using turning to just After the colour filter colour wheel (10) of module, projects optical wand (11) and export blue light；

Step 6: output blue light：Lasing light emitter (1) sends out blue laser, and light splitting switch element (5) will come from the first diffusion sheet (4) blue laser is reflected towards the second focus module, and mould is focused with third region (10c) alignment second using turning to just After the colour filter colour wheel (10) of block, projects optical wand (11) and export blue light；

【Control method three (B)】

【Structure】Control method three (B), on the basis of control method three (A) and its product embodiments being based on, will Colour filter filter wheel (10) therein replaces with the second diffusion sheet, other are constant.

【Method】Control method three (B) and control method three (A) difference lies in：In step 2 and four to six, come from The light of all colours of second focus module is all to project optical wand (11) by the second diffusion sheet.

The present invention above by the specific implementation mode by the embodiment shown in that figure, is made to the above of the present invention Further description, but the range that this should not be interpreted as to above-mentioned theme of the invention is only limitted to described example.

Claims

1. laser light source, including：

Lasing light emitter (1), the lasing light emitter for providing a kind of, two or more colors；

First concentration module for the laser that lasing light emitter (1) emits to be collimated and compressed, and projects the first diffusion sheet (4) on；

First diffusion sheet (4) for eliminating laser speckle, while making the hot spot reached on fluorescent powder wheel (8) uniform, and fluorescence swashs Send out efficient；

First focus module converges laser of the reception from the first diffusion sheet (4) and projects fluorescent powder wheel (8), together When to the fluorescence being excited on fluorescent powder wheel (8) carry out receive light and converge and project the second focus module；

Fluorescent powder wheel (8), is divided into one, two or more phosphor areas, wherein at least one phosphor area, by Fluorescence is sent out after laser excitation；

Optical wand (11) carries out even light action to light beam；

It is characterized in that：Further include：

Diffusion unit, be colour filter colour wheel (10) or vibration or rotation the second diffusion sheet, colour filter colour wheel (10) be divided into two or Multiple regions are wherein at least provided with quantity diffusion panel region corresponding with the laser color quantity of lasing light emitter (1), spread section The diffusion sheet in domain is coated with anti-reflection film corresponding with laser color respectively, and diffusion panel region is used to further eliminate the speckle of laser, Remaining region is set as white glass, the optical filter of corresponding color or hollow out, and discrete piece region is for further eliminating dissipating for laser Spot；Second diffusion sheet is used for the speckle except laser, while through the fluorescence of other colors；

It is divided switch element (5), the laser of reflection and lasing light emitter (1) color-match, and transmits other color of light；

Being divided switch element (5) has two states, respectively state one and state two,

For the moment, light splitting switch element (5) will come from the laser reflection for excitated fluorescent powder of the first diffusion sheet (4) to the to state Two focus modules, laser irradiate fluorescent powder wheel (8), the fluorescent powder area on fluorescent powder wheel (8) after the focusing of the second focus module Domain inspires the fluorescence of corresponding color, and fluorescence, which is focused by the second focus module and penetrates light splitting switch element (5), projects the Two focus modules, the fluorescence after the focusing of the second focus module on the second diffusion sheet or colour filter colour wheel (10) using corresponding to face Optical filter, white glass region or the hollow out of color, finally project optical wand (11)；

When state two, light splitting switch element (5) will come from the laser reflection of the first diffusion sheet (4) to the second focus module, through the Laser after the focusing of two focus modules, light is irradiated to using the diffusion sheet for being coated with corresponding color anti-reflection film on colour filter colour wheel (10) Stick (11).

2. laser light source described in accordance with the claim 1, which is characterized in that

The light splitting switch element (5) is dichroscope that is rotatable and can navigating at least two angles, the dichroscope The laser of reflection and lasing light emitter (1) color-match, transmits other color of light；

In at least two angles that the dichroscope is positioned, one of angle corresponds to the state one, another angle The corresponding state two.

3. according to laser light source as claimed in claim 1 or 2, which is characterized in that

The lasing light emitter (1), for providing blue laser；

The light splitting switch element (5), reflection blue laser transmit other color of light；For the moment, the light splitting switch is first for state Part (5) will come from the laser reflection for excitated fluorescent powder of the first diffusion sheet (4) to the second focus module, and laser is by second Focus module irradiates fluorescent powder wheel (8) after focusing, the phosphor area on fluorescent powder wheel (8) inspires the fluorescence of corresponding color, Fluorescence, which is focused by the second focus module and penetrates the light splitting switch element (5), projects the second focus module, poly- through second Fluorescence after burnt module focusing is using the optical filter of corresponding color, white glass area on the second diffusion sheet or colour filter colour wheel (10) Domain or hollow out finally project optical wand (11)；When state two, the light splitting switch element (5) will come from the first diffusion sheet (4) Laser reflection to the second focus module, the laser after the focusing of the second focus module, using the second diffusion sheet or colour filter The diffusion sheet that corresponding color anti-reflection film is coated on colour wheel (10) is irradiated to optical wand (11)；

The fluorescent powder wheel (8) include two phosphor areas, the first phosphor area (8a) be green emitting phosphor region, second Phosphor area (8b) is yellow fluorescent powder region；

When the diffusion unit is set as colour filter colour wheel (10), the colour filter colour wheel (10) includes four regions, the firstth area Domain (10a) is set as Red lightscreening plate, and second area (10b) is set as green color filter or white glass；(8c) is set in third region It is set to diffusion panel region, the diffusion sheet in the region is coated with through blue light and reflects the anti-reflection film of other color of light；The fourth region (10d) is set as white glass, for passing through yellow fluorescence；

When the diffusion unit is set as second diffusion sheet, second diffusion sheet is that upper and lower directions or multiple directions are shaken It is dynamic or rotation, the speckle for eliminating laser.

4. laser light source described in accordance with the claim 3, which is characterized in that

The fluorescent powder wheel (8), further includes third phosphor area (8c), and third phosphor area (8c) is red fluorescence powder area Domain；

The first area (10a) is set as Red lightscreening plate or white glass.

5. according to laser light source as claimed in claim 1 or 2, which is characterized in that

The lasing light emitter (1), provides blue laser and red laser；

The light splitting switch element (5), reflection blue laser and red laser, transmit other color of light；State is for the moment, described The blue laser for excitated fluorescent powder from the first diffusion sheet (4) is reflected into the second focusing mould by light splitting switch element (5) Block, laser irradiate fluorescent powder wheel (8) after the focusing of the second focus module, and the phosphor area on fluorescent powder wheel (8) inspires The fluorescence of corresponding color, fluorescence are focused by the second focus module and penetrate the light splitting switch element (5) to project second poly- Burnt module, the fluorescence after the focusing of the second focus module is using corresponding color on the second diffusion sheet or colour filter colour wheel (10) Optical filter, white glass region or hollow out finally project optical wand (11)；When state two, the light splitting switch element (5) is in the future It is reflected into the second focus module from the blue laser or red laser of the first diffusion sheet (4), after the focusing of the second focus module Laser is irradiated to optical wand using the diffusion sheet for being coated with corresponding color anti-reflection film on the second diffusion sheet or colour filter colour wheel (10) (11)；

The fluorescent powder wheel (8) includes two regions, and the first phosphor area (8a) is green emitting phosphor region, the second fluorescent powder Region (8b) is yellow fluorescent powder region；

When the diffusion unit is set as colour filter colour wheel (10), the colour filter colour wheel (10) includes four regions, the firstth area Domain (10a) is set as diffusion panel region, and the diffusion sheet in the region is coated with through feux rouges and reflects the anti-reflection film of other color of light；The (10b) is set as green color filter or white glass in two regions；Third region (10c) is set as diffusion panel region, the expansion in the region Discrete piece is coated with through blue light and reflects the anti-reflection film of other color of light；The fourth region (10d) is set as white glass, for passing through Huang Color fluorescence；

6. according to laser light source as claimed in claim 1 or 2, which is characterized in that

The lasing light emitter (1), provides blue laser, red laser and green laser；

The fluorescent powder wheel (8) includes a phosphor area, and the first phosphor area (8a) is yellow fluorescent powder region；

The light splitting switch element (5), reflection blue laser, red laser and green laser transmit other color of light；State For the moment, the blue laser for excitated fluorescent powder from the first diffusion sheet (4) is reflected into the by the light splitting switch element (5) Two focus modules, laser irradiate fluorescent powder wheel (8), the fluorescent powder area on fluorescent powder wheel (8) after the focusing of the second focus module Domain inspires yellow fluorescence, and yellow fluorescence is focused by the second focus module and penetrates the light splitting switch element (5) and projected Second focus module, the fluorescence after the focusing of the second focus module is using the on the second diffusion sheet or colour filter colour wheel (10) Four regions (10d) finally project optical wand (11)；When state two, the light splitting switch element (5) will come from the first diffusion sheet (4) blue laser, red laser or green laser is reflected into the second focus module, swashing after the focusing of the second focus module Light is irradiated to optical wand using the diffusion sheet for being coated with corresponding color anti-reflection film on the second diffusion sheet or colour filter colour wheel (10) (11)；

When the diffusion unit is set as colour filter colour wheel (10), the colour filter colour wheel (10) includes four regions, the firstth area Domain (10a) is set as diffusion panel region, and the diffusion sheet in the region is coated with through feux rouges and reflects the anti-reflection film of other color of light；The Panel region is spread in two regions (10b), and the diffusion sheet in the region is coated with through green light and reflects the anti-reflection film of other color of light；Third Region (8c) is set as diffusion panel region, and the diffusion sheet in the region is coated with through blue light and reflects the anti-reflection film of other color of light； The fourth region (10d) is set as white glass or hollow out, for passing through yellow fluorescence；

7. the control method of laser light source, which is characterized in that include the following steps：

Step 1: adjustment light splitting switch element (5) state is state one：When the laser light source needs the light exported to carry out autofluorescence Powder wheel (8), or from fluorescent wheel (8) and it is filtered wheel (10) corresponding region colour filter or the second diffusion sheet after gained light, control System light splitting switch element (5) remains state one, and the blue laser from the first diffusion sheet (4) is reflected towards the first focusing mould Block；

Step 2: wheel (10) that output fluorescent powder wheel (8) issued light or fluorescent powder wheel (8) are sent out and filtered corresponds to area The light of gained after the colour filter of domain or after the second diffusion sheet：Fluorescent powder wheel (8) is with rotation, and output is a kind of, two or more are glimmering Light passes through the first focus module, the first diffusion sheet (4), light splitting switch element (5) and the second focus module, then projects successively After the corresponding region of the filter wheel (10) of fluorescent powder wheel (8) synchronous rotation or the second diffusion sheet, optical wand (11) is finally projected And realize output；

Step 3: adjustment light splitting switch element (5) state is state two：When to need output light to be directly from sharp for the laser light source It when the light of gained, controls light splitting after light source (1) and the corresponding diffusion panel region of filtered wheel (10) or after the second diffusion sheet and opens It closes element (5) and remains state two, by the laser reflection from one kind of the first diffusion sheet (4), two or more colors to the One focus module；

Step 4: output lasing light emitter (1) issued light：One kind of the first diffusion sheet (4), two will be come from by being divided switch element (5) Kind or multiple color laser reflection to the second focus module, using turning to just to correspond to diffusion sheet regional alignment second After the colour filter colour wheel (10) of focus module or the second dispersible tablet, projects optical wand (11) and realize output.

8. the control method of laser light source as claimed in claim 7, which is characterized in that include the following steps：

Step 1: adjustment light splitting switch element (5) state is state one：This laser light source need to export respectively yellow, red and When green light, control light splitting switch element (5) remains state one, and the blue laser from the first diffusion sheet (4) is reflected towards First focus module；

Step 2: output yellow light：Fluorescent powder wheel (8) turns to just at this time to be focused with the second phosphor area (8b) alignment first Module, and excited by blue laser and send out yellow fluorescence, yellow fluorescence passes through first the first diffusion sheet of focus module successively (4), light splitting switch element (5), the second focus module and lucky turn to are directed at the second focus module with the fourth region (10d) After colour filter colour wheel (10) or the second diffusion sheet, projects optical wand (11) and export yellow light；

Step 3: output feux rouges：Fluorescent powder wheel (8) is still aligned with the second phosphor area (8b) at this time although rotating First focus module, and excited by blue laser and send out yellow fluorescence, yellow fluorescence passes through the first focus module first successively Diffusion sheet (4), light splitting switch element (5), the second focus module and lucky turn to are focused with first area (10a) alignment second After the colour filter colour wheel (10) of module, feux rouges is filtered out by yellow light and projects optical wand (11) and exports feux rouges；Using the second diffusion sheet When, fluorescent wheel (8) further includes third phosphor area (8c), and third phosphor area (8c) is red fluorescence powder region, third The red fluorescence that phosphor area (8c) is excited passes through first the first diffusion sheet of focus module (4), light splitting switch element successively (5), the second focus module and the second diffusion sheet project optical wand (11) and export feux rouges；

Step 4: output green light：Fluorescent powder wheel (8) is rotated further, and focuses mould with the first phosphor area (8a) alignment first Block, the first phosphor area (8a) are excited by blue laser and send out green fluorescence, and green fluorescence passes through first and focuses mould successively It the first diffusion sheet of block (4), light splitting switch element (5), the second focus module and is turned to just with second area (10b) alignment the After the colour filter colour wheel (10) of two focus modules or the second diffusion sheet, projects optical wand (11) and export green light light；

Step 5: adjustment light splitting switch element (5) state is state two：When this laser light source needs output blue light, it will be divided Switch element (5) is adjusted to state two by state one；

Step 6: output blue light：Blue laser from the first diffusion sheet (4) is reflected towards second and gathered by light splitting switch element (5) Burnt module is turned to using lucky with the colour filter colour wheel (10) or second of the second focus module of third region (10c) alignment After diffusion sheet, projects optical wand (11) and export blue light；

Step 7: returning to step 1, and subsequent step is carried out successively；So cycle, realize this laser light source be sequentially output it is yellow, Red, green and blue light.

9. the control method of laser light source as claimed in claim 7, which is characterized in that include the following steps：

Step 1: adjustment light splitting switch element (5) state is state one：This laser light source needs to export yellow and green light respectively When, control light splitting switch element (5) remains state one, and it is poly- that the blue laser from the first diffusion sheet (4) is reflected towards first Burnt module；

Step 3: output green light：Fluorescent powder wheel (8) is rotated further, and focuses mould with the first phosphor area (8a) alignment first Block, the first phosphor area (8a) are excited by blue laser and send out green fluorescence, and green fluorescence passes through first and focuses mould successively It the first diffusion sheet of block (4), light splitting switch element (5), the second focus module and is turned to just with second area (10b) alignment the After the colour filter colour wheel (10) of two focus modules or the second diffusion sheet, projects optical wand (11) and export green light light；

Step 4: adjustment light splitting switch element (5) state is state two：This laser light source needs to export feux rouges and blue light respectively When, light splitting switch element (5) is adjusted to state two by state one；

Step 5: output feux rouges：Output：Lasing light emitter (1) sends out red laser, and light splitting switch element (5) will come from the first diffusion The red laser of piece (4) is reflected towards the second focus module, is focused with first area (10a) alignment second using turning to just After the colour filter colour wheel (10) of module or the second diffusion sheet, projects optical wand (11) and export feux rouges；

Step 6: output blue light：Lasing light emitter (1) sends out blue laser, and light splitting switch element (5) will come from the first diffusion sheet (4) Blue laser be reflected towards the second focus module, the second focus module is directed at the 3rd region (10c) using turning to just After colour filter colour wheel (10) or the second diffusion sheet, projects optical wand (11) and export blue light；

Step 7: returning to step 1, and subsequent step is carried out successively；So cycle, realize this laser light source be sequentially output it is yellow, Green, red and blue light.

10. the control method of laser light source as claimed in claim 7, which is characterized in that include the following steps：

Step 1: adjustment light splitting switch element (5) state is state one：When this laser light source needs to export sodium yellow, control point Switching element (5) remains state one, and the blue laser from the first diffusion sheet (4) is reflected towards the first focus module；

Step 2: output yellow light：Fluorescent powder wheel (8) turns to just at this time to be focused with the first phosphor area (8a) alignment first Module, and excited by blue laser and send out yellow fluorescence, yellow fluorescence passes through first the first diffusion sheet of focus module successively (4), light splitting switch element (5), the second focus module and lucky turn to are directed at the second focus module with the fourth region (10d) After colour filter colour wheel (10) or the second diffusion sheet, projects optical wand (11) and export yellow light；

Step 3: adjustment light splitting switch element (5) state is state two：This laser light source needs to export feux rouges, green and blue respectively When coloured light, light splitting switch element (5) is adjusted to state two by state one；

Step 4: output feux rouges：Output：Lasing light emitter (1) sends out red laser, and light splitting switch element (5) will come from the first diffusion The red laser of piece (4) is reflected towards the second focus module, is focused with first area (10a) alignment second using turning to just After the colour filter colour wheel (10) of module or the second diffusion sheet, projects optical wand (11) and export feux rouges；

Step 5: output green light：Lasing light emitter (1) sends out green-emitting laser, and light splitting switch element (5) will come from the first diffusion sheet (4) green laser is reflected towards the second focus module, and mould is focused with second area (10b) alignment second using turning to just After the colour filter colour wheel (10) of block or the second diffusion sheet, projects optical wand (11) and export blue light；

Step 6: output blue light：Lasing light emitter (1) sends out blue laser, and light splitting switch element (5) will come from the first diffusion sheet (4) Blue laser be reflected towards the second focus module, using just turn to third region (10c) be aligned the second focus module Colour filter colour wheel (10) or the second diffusion sheet after, project optical wand (11) and export blue light；