CN108169990A - A kind of two-color laser light sources project machine and its control method - Google Patents
A kind of two-color laser light sources project machine and its control method Download PDFInfo
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- CN108169990A CN108169990A CN201611120817.8A CN201611120817A CN108169990A CN 108169990 A CN108169990 A CN 108169990A CN 201611120817 A CN201611120817 A CN 201611120817A CN 108169990 A CN108169990 A CN 108169990A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 45
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 6
- 230000011514 reflex Effects 0.000 claims description 5
- 238000009738 saturating Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 9
- 238000007493 shaping process Methods 0.000 abstract description 8
- 239000003086 colorant Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 241001062009 Indigofera Species 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002189 fluorescence spectrum Methods 0.000 description 1
- 235000021384 green leafy vegetables Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
Classifications
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- 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
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- 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
- G03B21/2013—Plural light sources
-
- 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
- G03B21/206—Control of light source other than position or intensity
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a kind of two-color laser light sources project machine and its control methods, and the scheme of red laser is added on the basis of blue laser excitated fluorescent powder light path.When blue laser gets to red fluorescence powder area, red laser starts light extraction at this time, red laser stops light extraction after blue laser is by red fluorescence powder area, and while fluorescent wheel fluorescence generates feux rouges, red laser is also emitted red laser and the feux rouges of entire light path is supplemented.After red laser outgoing after shaping lens group, also become directional light, after light splitting piece, close beam with the three primary colours that fluorescent wheel generates, make the red contrast of image and color saturation higher.
Description
Technical field
The invention belongs to fluorescence type field of projector, and in particular to a kind of two-color laser light sources project machine and its controlling party
Method.
Background technology
Projector is broadly divided into light bulb, LED and laser three types according to light source difference, and wherein laser projection is current
State-of-the-art shadow casting technique, and the laser projection of fluorescence wheel mode is the highest type of cost performance.For traditional fluorescence light
Road is irradiated to part blue laser on fluorescent powder, generates the light of yellow and green wavelength, and feux rouges and green is generated using filtering
Light, the light of blue laser composition three primary colours generated with another part transmitted light path, needs are generated by the proportioning to three primary colours
Color, generate the picture of needs, project on curtain.
The scheme of traditional blue laser excitated fluorescent powder, due to the limitation of phosphor material powder in itself, fluorescence spectrum
Wavelength is largely focused between 500-600nm, and only seldom optical wavelength is filtered out after optical filter in more than 600nm
Feux rouges accounting it is just considerably less, the red performance for the picture being projected out is simultaneously bad.
Invention content
The technical problems to be solved by the invention are：A kind of two-color laser light sources project machine and its control method are provided, solved
It has determined and projected picture red is caused to show the problem of bad in the prior art.
The present invention uses following technical scheme to solve above-mentioned technical problem：
A kind of two-color laser light sources project machine, including red laser, blue laser and fluorescent wheel, blue laser hair
Go out the fluorescent powder area that blue laser is radiated on fluorescent wheel, fluorescent wheel at the uniform velocity rotates, and it is glimmering to inspire yellow fluorescence, green successively
Light, with all carrying out conjunction beam in light-emitting window through the blue laser of fluorescent wheel, red laser sends out red laser by processing
Afterwards, it reaches the combined beam light line that light-emitting window is generated with fluorescent wheel and is mixed into white light.
Light splitting piece, a condenser lens, a collimation lens, blue laser are set between blue laser and fluorescent wheel
The blue laser sent out directly by reaching fluorescent wheel after light splitting piece, condenser lens, collimation lens, beat in fluorescent wheel by blue laser
On inspire yellow, green fluorescence back through collimation lens, condenser lens reach light splitting piece, through the light splitting piece back side be totally reflected
To light-emitting window, all through the blue laser of fluorescent wheel by secondary focusing, collimation after, reflex to light extraction through multistage total reflection mirror
Mouthful, carry out conjunction beam with yellow, green fluorescence；The red laser that red laser is sent out is complete after over-focusing, collimation, then through multistage
Speculum reflexes to light-emitting window, and the combined beam light line generated with fluorescent wheel is mixed into white light.
Through the blue laser of fluorescent wheel light splitting pieces are reached by three total reflection mirrors successively after secondary collimation focusing, three
Setting relaying collimation lens, the red laser that red laser is sent out are carried out by five total reflection lens between a total reflection mirror
Total reflection, wherein, also set up cylindrical mirror and collimation lens between two neighboring total reflection mirror.
The fluorescent wheel includes round heat-radiating substrate and is set to the circular ring shape phosphor region at heat-radiating substrate edge, the fluorescence
Area includes blue light transmission area, red fluorescence powder area and green emitting phosphor area.
The blue light transmission area has a common boundary with red fluorescence powder area intersection and green emitting phosphor area with red fluorescence powder area
Place is respectively provided with sender unit, when laser spot passes through sender unit, sends out the control signal of red laser.
Light splitting piece is in 45 degree of angles, and be coated with total reflection film with incident light direction.
A kind of control method of two-color laser light sources project machine, in a swing circle of fluorescent wheel, including walking as follows
Suddenly：
First, start blue laser, its laser spot sent out is made to beat the fluorescence area in fluorescent wheel；
Secondly, control fluorescent wheel at the uniform velocity rotates, and obtains the fluorescence area information that laser spot passes through in real time；
Then, laser spot is waited for trigger the device by sender unit and send out transmitting signal；
Finally, after receiving transmitting signal, according to laser spot by the suitable of emitter previous moment and later moment in time
Sequence sends out the control signal of red laser.
The control signal of red laser is sent out according to following rule：
Judge the fluorescence area that laser spot passes through by the previous moment and later moment in time of sender unit,
If previous moment is blue light transmission area or green emitting phosphor area, later moment in time is red fluorescence powder area, then sends out
The signal that red laser is opened；
If previous moment is red fluorescence powder area, later moment in time is blue light transmission area or green emitting phosphor area, then sends out
The signal that red laser stops.
Compared with prior art, the invention has the advantages that：
1st, the present invention is directed to that two-color laser fluorescent wheel scheme blue light utilization rate is low, this more defect of dosage of feux rouges,
Red laser is added on the basis of blue laser excitated fluorescent powder light path.And fluorescent wheel is divided into three according to angle proportioning
Area, respectively blue light transmission area and green light and red fluorescence powder area.The continuous light extraction of blue laser, fluorescent wheel constantly rotate,
In a swing circle, laser, with a certain size hot spot, is beaten successively sequentially in time after focus lens group shaping
Area, green emitting phosphor area and red fluorescence powder area are penetrated in the blue light of fluorescent wheel.Blue light penetrates the blue light that area penetrates, by collimation
Collimated is directional light, and the blue phosphor for getting to green light and red fluorescence powder area generates green light and feux rouges, the green light of generation and
Feux rouges is reflected by fluorescent wheel, is collimated into directional light after the reversed directive focus lens group of red-green glow of reflection, three groups of RGB is put down
Row light is realized under the action of light splitting piece closes beam.
2nd, when blue laser gets to red fluorescence powder area, red laser starts light extraction at this time, when blue laser passes through
Red laser stops light extraction behind red fluorescence powder area, and while fluorescent wheel fluorescence generates feux rouges, red laser is also emitted
Red laser supplements the feux rouges of entire light path.After red laser outgoing after shaping lens group, also become directional light,
After light splitting piece, beam is closed with the three primary colours that fluorescent wheel generates, makes the red contrast of image and color saturation higher.It is blue
One photoluminescence of energy of color laser, utilization ratio 100%, while red laser can be reduced accordingly, the whole utilization of light source
Efficiency can greatly promote.
Description of the drawings
Fig. 1 is that the light path of projector of the present invention moves towards schematic diagram.
Fig. 2 is the structure diagram of fluorescent wheel of the present invention.
Fig. 3 is the structure diagram of laser projection of the present invention.
Wherein, being identified as in figure：1- blue lasers；The first light splitting pieces of 2-；The first condenser lenses of 3-；4- first is collimated
Lens；5- fluorescent wheels；6- motors；The second collimation lenses of 7-；The second condenser lenses of 8-；The first total reflection mirrors of 9-；10- second is all-trans
Penetrate mirror；11- third collimation lenses；12- third total reflection mirrors；13- red fluorescence powders area；14- blue light transmission areas；15- greens are glimmering
Guang Fen areas；The 4th total reflection mirrors of 16-；18- red lasers；21- tertiary focusing lens；The 4th collimation lenses of 22-；23- second
Light splitting piece；The 5th total reflection mirrors of 24-；25- cylindrical mirrors；The 5th collimation lenses of 26-；The 6th total reflection mirrors of 27-；28- thirds are divided
Piece.
Specific embodiment
The structure and the course of work of the present invention are described further below in conjunction with the accompanying drawings.
A kind of two-color laser light sources project machine, including red laser, blue laser and fluorescent wheel, blue laser hair
Go out the fluorescent powder area that blue laser is radiated on fluorescent wheel, fluorescent wheel at the uniform velocity rotates, and it is glimmering to inspire yellow fluorescence, green successively
Light, with all carrying out conjunction beam in light-emitting window through the blue laser of fluorescent wheel, red laser sends out red laser by processing
Afterwards, it reaches the combined beam light line that light-emitting window is generated with fluorescent wheel and is mixed into white light.
A kind of control method of two-color laser light sources project machine, in a swing circle of fluorescent wheel, including walking as follows
Suddenly：
First, start blue laser, its laser spot sent out is made to beat the fluorescence area in fluorescent wheel；
Secondly, control fluorescent wheel at the uniform velocity rotates, and obtains the fluorescence area information that laser spot passes through in real time；
Then, laser spot is waited for trigger the device by sender unit and send out transmitting signal；
Finally, after receiving transmitting signal, according to laser spot by the suitable of emitter previous moment and later moment in time
Sequence sends out the control signal of red laser.
Specific embodiment one,
As shown in Figure 1, Figure 2, Figure 3 shows,
A kind of two-color laser light sources project machine, including red laser 18, blue laser 1 and fluorescent wheel 5, blue laser
First light splitting piece 2, the first condenser lens 3, the first collimation lens 4 are set between device 1 and fluorescent wheel, what blue laser 1 was sent out
Blue laser is directly by reaching fluorescent wheel 5, blue laser after the first light splitting piece 2, the first condenser lens 3, the first collimation lens 4
Beat the yellow inspired on fluorescent wheel 5, green fluorescence reaches first back through the first collimation lens 4, the first condenser lens 3
Light splitting piece 2 is all-trans through 2 back side of the first light splitting piece and is incident upon light-emitting window, all passes through the second collimation through the blue laser of fluorescent wheel 5
It is complete through more first total reflection mirrors 9, the second total reflection mirror 10, third collimation lens 11, third after lens 7, the second condenser lens 8
Speculum 12 reflexes to light-emitting window, and conjunction beam is carried out with yellow, green fluorescence；
The red laser that red laser 18 is sent out is after tertiary focusing lens 21, the 4th collimation lens 22, then through
Four total reflection mirrors 16, the second light splitting piece 23, the 5th total reflection mirror 24, cylindrical mirror 25, the 5th collimation lens 26, the 6th total reflection mirror
27th, third light splitting piece 3 reflexes to light-emitting window, and the second light splitting piece 23, third light splitting piece 3 are passed through with the combined beam light line that fluorescent wheel generates
After be mixed into white light.
Blue laser 1 sends out the fluorescent powder area that blue laser is radiated on fluorescent wheel 5, and fluorescent wheel at the uniform velocity rotates, successively
Yellow fluorescence, green fluorescence are inspired, with all carrying out conjunction beam, red laser in light-emitting window through the blue laser of fluorescent wheel
It sends out red laser after treatment, reaches the combined beam light line that light-emitting window is generated with fluorescent wheel and be mixed into white light.
Through the blue laser of fluorescent wheel light splitting pieces are reached by three total reflection mirrors successively after secondary collimation focusing, three
Setting relaying collimation lens, the red laser that red laser is sent out are carried out by five total reflection lens between a total reflection mirror
Total reflection, wherein, also set up cylindrical mirror and collimation lens between two neighboring total reflection mirror.
The fluorescent wheel includes round heat-radiating substrate and is set to the circular ring shape phosphor region at heat-radiating substrate edge, the fluorescence
Area includes blue light transmission area 14, red fluorescence powder area 13 and green emitting phosphor area 15.
The blue light transmission area has a common boundary with red fluorescence powder area intersection and green emitting phosphor area with red fluorescence powder area
Place is respectively provided with sender unit, when laser spot passes through sender unit, sends out the control signal of red laser.
Light splitting piece is in 45 degree of angles, and be coated with total reflection film with incident light direction.
Specific embodiment two,
A kind of control method of two-color laser light sources project machine, in a swing circle of fluorescent wheel, including walking as follows
Suddenly：
Step 1 starts blue laser, its laser spot sent out is made to beat the fluorescence area in fluorescent wheel；
Step 2, control fluorescent wheel at the uniform velocity rotate, and obtain the fluorescence area information that laser spot passes through in real time；
Step 3 waits for laser spot to trigger the device by sender unit and send out transmitting signal；
Step 4 after receiving transmitting signal, judges laser spot by the suitable of emitter previous moment and later moment in time
Sequence, if previous moment passes through blue light transmission area or green emitting phosphor area, later moment in time is red fluorescence powder area, then sends out red
The signal that laser is opened；
If previous moment passes through red fluorescence powder area, later moment in time is blue light transmission area or green emitting phosphor area, then sends out
Go out the signal of red laser stopping；
Step 5, the cycle above process are until projector's work is completed.
The operation principle of the present invention is as follows：
The invention discloses a kind of sides that red laser is added on the basis of blue laser excitated fluorescent powder light path
Case.Directive fluorescent wheel after blue laser transmitting blue light source shaping, fluorescent wheel are divided into blue light transmission area and green light and red
Fluorescent powder area, the green light and feux rouges of blue light and the fluorescence generation of transmission are realized after shaping and close beam.Simultaneously when blue light directive
During the red fluorescence powder area of fluorescent wheel, red laser transmitting red laser beam is incorporated to fluorescent wheel generation after lens group shaping
In three coloured light light path, the feux rouges of supplement red fluorescence area generation.The utilization ratio of blue laser is improved, while improves red
Color saturation.
And fluorescent wheel is divided into three areas, respectively blue light transmission area and feux rouges and green emitting phosphor according to angle proportioning
Area.The continuous light extraction of blue laser, fluorescent wheel constantly rotate, in a swing circle, after focus lens group shaping with
A certain size hot spot, the blue light beaten successively sequentially in time in fluorescent wheel penetrate area, green emitting phosphor area and red fluorescence
Powder area.Blue light penetrates the blue light that area penetrates, and is directional light by collimation lens collimation.Get to the indigo plant in green light and red fluorescence powder area
Light fluorescence generates green light and feux rouges, and the green light and feux rouges of generation are reflected by fluorescent wheel, accurate after directive focus lens group after reflection
It is directly directional light, three groups of directional lights of RGB are realized under the action of light splitting piece closes beam.When blue laser gets to red fluorescence powder
Qu Shi, at this time red laser start light extraction, after blue laser is by red fluorescence powder area red laser stop light extraction,
While fluorescent wheel fluorescence generates feux rouges, red laser is also emitted red laser and the feux rouges of entire light path is supplemented.It is red
After color laser emitting after shaping lens group, also become directional light, after light splitting piece, closed with the three primary colours that fluorescent wheel generates
Beam makes the red contrast of image and color saturation higher.
It is schematic diagram as shown in Figure 1：Blue laser sends out blue laser, through light splitting piece, after colimated light system, becomes
For directional light, after directional light penetrates condenser lens, blue laser beam is focused into a hot spot, beats on fluorescent wheel, and fluorescence
Wheel is divided into three areas, respectively blue light transmission area and green light and red fluorescence powder area according to angle proportioning.Fluorescent wheel is in motor
Driving is lower to rotate, and in a swing circle, blue light penetrates when getting to the blue light of fluorescent wheel respectively through area, and it is glimmering to be incident on green
Fluorescence goes out green light during Guang Fen areas, and fluorescence goes out feux rouges when being incident on red fluorescence powder area, and the wide spectrum green light of fluorescence and feux rouges quilt
Fluorescent wheel reflects away, and negative direction penetrates focus lens group, the wide angle of divergence green light quilt of wide spectrum that negative direction passes through condenser lens
The directional light of certain spot size is shaped as, 90 degree of outgoing upwards are deflected after light splitting piece.And transmitted through the indigo plant of fluorescent wheel
Light is equally shaped rear and green light and red combiner, red laser outgoing red laser while blue light penetrates fluorescent wheel,
The three primary colours for turning 90 degrees and being emitted generate with fluorescent wheel upwards are retrodeviated by speculum to mix.
Fluorescent wheel schematic diagram blue light is illustrated in figure 2 through area, incident blue laser whole transmissive；Green fluorescence
The blue laser fluorescence of powder area incidence goes out wide spectrum green light；Red fluorescence powder area, incident blue laser are glimmering in this region
Light goes out wide spectrum feux rouges.
As shown in Figure 3：Blue laser sends out blue laser, through 2 light splitting pieces, after colimated light system, is shaped as putting down
Row light, after directional light penetrates condenser lens, blue laser beam is focused into a hot spot, beats on fluorescent wheel, and fluorescent wheel is pressed
Irradiation angle proportioning is divided into three areas, respectively blue light transmission area and green light and red fluorescence powder area.Fluorescent wheel is in the driving of motor
Lower rotation, in a swing circle, blue light penetrates when getting to the blue light of fluorescent wheel respectively through area, is incident on green emitting phosphor
Fluorescence goes out green light during area, and fluorescence goes out feux rouges when being incident on red fluorescence powder area, and the wide spectrum green light and feux rouges of fluorescence are by fluorescence
Wheel reflects away, and negative direction passes through condenser lens, is collimated, is propagated forward with certain dispersion angle for the first time, and reversed directive is accurate
It is collimated for the second time after straight lens, green light and feux rouges become directional light after collimating twice.Green and red directional light are with 45
Angle directive light splitting piece is spent, is totally reflected and is emitted along the Y direction.
The blue light and feux rouges of transmission are collimated into directional light, directional light is penetrated respectively with 45 degree of angles after transparent group of collimation
To total reflection mirror, exit direction becomes the propagation of X negative directions, and after relaying collimation lens corrects degree of parallelism, directive is all-trans
Mirror is penetrated, exit direction is turn 90 degrees partially, is propagated along Y positive directions, after crossing light splitting piece with 45 degree of angle full impregnateds, is converged with green light, is generated
Mixed white light.
Red laser outgoing red laser while blue light penetrates fluorescent wheel, feux rouges, which converges, after condenser lens is
The hot spot of a certain size and convergence angle, it is constant through spot size after collimation lens, it is shaped as directional light, directional light directive
It after speculum, is turn 90 degrees partially to Y positive directions and is emitted, 45 degree of angle directive light splitting pieces are retrodeviated to turn 90 degrees to X positive directions and are emitted, 45 degree of angles
After directive speculum, 90 degree of polarization is emitted to cylindrical mirror along Y positive directions, and cylindrical mirror converges feux rouges in X-direction, red after convergence
Light is prepared as directional light after collimation lens, and 45 degree of directive speculums of directional light are retrodeviated to turn 90 degrees and are emitted along X negative directions,
90 degree of three primary light sources generated along the outgoing of Y forward directions with fluorescent wheel of sheet mix after being incident on speculum with 45 degree of angles, right
Feux rouges is supplemented.Make the red contrast of image and color saturation higher, while improve the utilization ratio of blue light.
The specification of each component of the present invention, function and effect are as follows：
Blue laser：Wavelength 455nm.
Red laser：Wavelength 638nm.
First light splitting piece：45 degree of incident blue lasers can be totally reflected with full impregnated mistake, yellow and green laser.
Second, third light splitting piece：45 degree of incident blue-green lasers can be totally reflected with full impregnated mistake, red laser.
Collimation lens：The directional light of reversed incidence is shaped as a certain size hot spot, by the diverging finishing of forward entrance
Shape is directional light.
Condenser lens：The directional light of forward entrance is shaped as to a certain size hot spot, incident diverging finishing will be reflected
Shape is directional light.
Fluorescent wheel：Blue light all penetrates, and incident blue laser part fluorescence goes out green light, and part fluorescence goes out feux rouges.
Motor：Rotate fluorescent wheel.
Total reflection mirror：420-700nm wave bands plate 45 degree of angle total reflection films, and 45 degree of incident light are turn 90 degrees outgoing partially.
Blue light penetrates area：Plate anti-reflection film (600~700nm).
Green emitting phosphor area：The laser fluorescence of incident 455nm generates green light.
Red fluorescence powder area：The laser fluorescence of incident 455nm generates red light.
Claims (8)
1. a kind of two-color laser light sources project machine, it is characterised in that：It is blue including red laser, blue laser and fluorescent wheel
Light laser sends out the fluorescent powder area that blue laser is radiated on fluorescent wheel, and fluorescent wheel at the uniform velocity rotates, and it is glimmering to inspire yellow successively
Light, green fluorescence, with all carrying out conjunction beam in light-emitting window through the blue laser of fluorescent wheel, red laser sends out red laser
After treatment, it reaches the combined beam light line that light-emitting window is generated with fluorescent wheel and is mixed into white light.
2. two-color laser light sources project machine according to claim 1, it is characterised in that：Between blue laser and fluorescent wheel
Set light splitting piece, a condenser lens, a collimation lens, the blue laser that blue laser is sent out directly by light splitting piece,
Fluorescent wheel is reached after condenser lens, collimation lens, blue laser beats the yellow inspired on fluorescent wheel, green fluorescence reversely leads to
Collimation lens, condenser lens arrival light splitting piece are crossed, is all-trans through the light splitting piece back side and is incident upon light-emitting window, all through the blue of fluorescent wheel
After laser is by secondary focusing, collimation, light-emitting window is reflexed to through multistage total reflection mirror, conjunction beam is carried out with yellow, green fluorescence；It is red
The red laser that color laser is sent out reflexes to light-emitting window after over-focusing, collimation, then through multistage total reflection mirror, is produced with fluorescent wheel
Raw combined beam light line is mixed into white light.
3. two-color laser light sources project machine according to claim 2, it is characterised in that：It is passed through through the blue laser of fluorescent wheel
Light splitting piece is reached by three total reflection mirrors successively after secondary collimation focusing, setting relaying collimation is saturating between three total reflection mirrors
Mirror, the red laser that red laser is sent out are totally reflected by five total reflection lens, wherein, two neighboring total reflection mirror
Between also set up cylindrical mirror and collimation lens.
4. two-color laser light sources project machine according to claim 3, it is characterised in that：The fluorescent wheel includes round radiate
Substrate and the circular ring shape phosphor region for being set to heat-radiating substrate edge, the phosphor region include blue light transmission area, red fluorescence powder area
With green emitting phosphor area.
5. two-color laser light sources project machine according to claim 4, it is characterised in that：The blue light transmission area and red are glimmering
Guang Fen areas intersection and green emitting phosphor area are respectively provided with sender unit with red fluorescence powder area intersection, work as laser light
When point is by sender unit, the control signal of red laser is sent out.
6. two-color laser light sources project machine according to claim 2, it is characterised in that：Light splitting piece is in 45 with incident light direction
Angle is spent, and is coated with total reflection film.
7. the control method based on two-color laser light sources project machine described in claim 1, it is characterised in that：The one of fluorescent wheel
In a swing circle, include the following steps：
First, start blue laser, its laser spot sent out is made to beat the fluorescence area in fluorescent wheel；
Secondly, control fluorescent wheel at the uniform velocity rotates, and obtains the fluorescence area information that laser spot passes through in real time；
Then, laser spot is waited for trigger the device by sender unit and send out transmitting signal；
Finally, after receiving transmitting signal, according to laser spot by emitter previous moment and the sequence of later moment in time, hair
Go out the control signal of red laser.
8. the control method of two-color laser light sources project machine according to claim 7, it is characterised in that：Red laser
Control signal is sent out according to following rule：
Judge the fluorescence area that laser spot passes through by the previous moment and later moment in time of sender unit,
If previous moment is blue light transmission area or green emitting phosphor area, later moment in time is red fluorescence powder area, then sends out red
The signal that laser is opened；
If previous moment is red fluorescence powder area, later moment in time is blue light transmission area or green emitting phosphor area, then sends out red
The signal that laser stops.
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| CN201611120817.8A CN108169990A (en) | 2016-12-07 | 2016-12-07 | A kind of two-color laser light sources project machine and its control method |
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| CN201611120817.8A CN108169990A (en) | 2016-12-07 | 2016-12-07 | A kind of two-color laser light sources project machine and its control method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407453A (en) * | 2018-12-05 | 2019-03-01 | 深圳彩翼光电科技有限公司 | Light source optical path system |
| CN110262175A (en) * | 2019-06-18 | 2019-09-20 | 吕素萍 | A kind of light source of projector and forming method thereof |
| CN110888290A (en) * | 2018-09-07 | 2020-03-17 | 深圳光峰科技股份有限公司 | Light source system and projection system |
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