CN109143744A - The optical projection system of light-source system and the application light-source system - Google Patents
The optical projection system of light-source system and the application light-source system Download PDFInfo
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- CN109143744A CN109143744A CN201710453858.7A CN201710453858A CN109143744A CN 109143744 A CN109143744 A CN 109143744A CN 201710453858 A CN201710453858 A CN 201710453858A CN 109143744 A CN109143744 A CN 109143744A
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
-
- 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
-
- 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
- G03B21/2066—Reflectors in illumination beam
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Projection Apparatus (AREA)
Abstract
The present invention relates to a kind of light-source system and optical projection systems, light-source system includes luminescence unit, light path switch unit, wavelength conversion unit, first, second spectrophotometric unit, wherein, luminescence unit emits light beam, the light beam that luminescence unit emits is switched into one first light path or one second light path by light path switch unit, first spectrophotometric unit is set to the first light path and the second light path end, for incident beam to be guided to wavelength conversion unit or the second spectrophotometric unit respectively, first spectrophotometric unit is also used to guide the light beam that wavelength conversion unit be emitted after wavelength convert to the second spectrophotometric unit, timing is emitted after second spectrophotometric unit is used to for incident light beam being divided, second light path passes through between wavelength conversion unit and the first spectrophotometric unit, height of second light path at least one dimension direction is lower than described Height of the wavelength conversion unit in the dimension direction.Using the present invention, the efficiency of light energy utilization is high and compact-sized.
Description
Technical field
The present invention relates to the projection systems of field of projection display more particularly to a kind of light-source system and the application light-source system
System.
Background technique
The color that the current optical projection system using one chip spatial light modulator generally uses excitation light source to be irradiated to rotation
The red, green, blue three primary colours light of timing outgoing is formed on wheel, and the red, green, blue three primary colours light that timing is emitted is projected to space
It is modulated on optical modulator, the monochromatic light image modulated quickly alternately switches on the screen, and then utilizes the view of human eye
Feel that the monochromatic light image blend of each timing is formed color image together by residual effect.Red, green, blue three is coated by colour wheel
For the fluorescent powder of kind color to obtain red, green, blue three primary colours light, still, the light conversion efficiency of red fluorescence powder is lower, causes to use
The brightness of image of the optical projection system red light portion of one chip space light modulation is lower, to influence whole image display effect
Fruit.Since the brightness of the spatial light modulator of one chip is lower, currently, engineering more than 20000 lumen of luminous flux projects all by 3
Finned space optical modulator is realized, so bulky using the optical projection system of 3 finned space optical modulators, needs projection lens
Back focal length it is longer, requirement to camera lens is high, expensive.
Summary of the invention
In view of the above situation, the present invention provides a kind of high efficiency of light energy utilization and compact-sized light-source system and projection is
System.
On the one hand, the present invention provides a kind of light-source system, including luminescence unit, light path switch unit, the first light splitting list
Member, wavelength conversion unit and the second spectrophotometric unit, wherein the luminescence unit emits light beam, and the light path switch unit is used
One first light path or one second light path, first spectrophotometric unit are switched into the light beam for emitting the luminescence unit
It is set to the first light path and the second light path end, for dividing from the light beam of the first light path and the incidence of the second light path
It Yin Dao not be also used to wavelength conversion unit carrying out wave to wavelength conversion unit or the second spectrophotometric unit, first spectrophotometric unit
The light beam being emitted after long conversion is guided to the second spectrophotometric unit, and second spectrophotometric unit is used to for incident light beam being divided
Timing is emitted afterwards, and second light path passes through between the wavelength conversion unit and first spectrophotometric unit, and described the
Height of two light paths at least one dimension direction is lower than the wavelength conversion unit in the height in the dimension direction.
On the other hand, the present invention also provides a kind of optical projection system, the optical projection system include above-mentioned light-source system and
One spatial light modulator, the modular spatial light modulator is for scheming the beam modulation that the light-source system is emitted at carrying
As the image light of information.
Light-source system provided in an embodiment of the present invention is with the advantages of optical projection system: due to light-source system using yellow light come
Isolated feux rouges, and due to integrally-built arrangement, improve the efficiency of light energy utilization；On the other hand, in some embodiments,
One light path is multiplexed to a dimension direction of fluorescence colour wheel by the suitable arrangement of optical element, makes light-source system and use to be somebody's turn to do
The more compact structure of the optical projection system of light-source system, and reduce the difficulty of light-source system structure design.
Detailed description of the invention
Fig. 1 is the block diagram of the optical projection system of the first embodiment of the invention.
Fig. 2 is the first specific architecture diagram of the light-source system of optical projection system shown in Fig. 1.
Fig. 3 is a kind of embodiment schematic diagram of the light splitting wheel of light-source system shown in Fig. 2.
Fig. 4 is a kind of embodiment schematic diagram for repairing colour wheel of light-source system shown in Fig. 2.
Fig. 5 is second of specific architecture diagram of the light-source system of optical projection system shown in Fig. 1.
Fig. 6 is a kind of embodiment schematic diagram for repairing colour wheel of light-source system shown in Fig. 5.
Fig. 7 is the front view of the third specific architecture diagram of the light-source system of optical projection system shown in Fig. 1.
Fig. 8 is the top view of light-source system shown in Fig. 7.
Fig. 9 is the block diagram of the optical projection system of second of embodiment of the invention.
Figure 10 is the three-dimensional view of the first specific architecture diagram of the light-source system of optical projection system shown in Fig. 9.
Figure 11 is the front view of light-source system shown in Figure 10.
Figure 12 is the top view of light-source system shown in Figure 10.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein " and/or " it include one or more relevant institute's lists
Any and all combinations of purpose.
Refering to Figure 1, the block diagram of the first embodiment for optical projection system of the present invention.The projection system
System 1 includes light-source system 2, spatial light modulator 3 and projection lens 4.The light beam being emitted from the light-source system 2 is by spatial light tune
Device 3 processed is modulated into the image light for carrying image information, then is projected to screen (not shown) formation image through projection lens 4 and shows
To user.
In the present embodiment, the light-source system 2 includes luminescence unit 20, the light splitting of light path switch unit 21, first
Unit 22, wavelength conversion unit 23 and the second spectrophotometric unit 24.The light path switch unit 21 emits luminescence unit 20
Light beam switch into the first light path L1 or the second light path L2, the first spectrophotometric unit 22 is set to the first light path L1 and
Two ends light path L2 reach the first spectrophotometric unit 22 by the light beam that the first light path L1, the second light path L2 are emitted, and first
Spectrophotometric unit 22 respectively guides incident beam to wavelength conversion unit 23 or second point according to the difference of incident beam light path
Light unit 24, for example, the light beam from the first light path L1 is directed at wavelength conversion unit 23 and will by the first spectrophotometric unit 22
Light beam from the second light path L2 is directed at the second spectrophotometric unit 24.Alternatively, in another embodiment, first light splitting
Light beam from the first light path L1 is directed at the second spectrophotometric unit 24 and by the light beam from the second light path L2 by unit 22
It is directed at wavelength conversion unit 23.In addition, carrying out the light beam after wavelength convert via wavelength conversion unit 23 again via the first light splitting
Unit 22 is directed at the second spectrophotometric unit 24.Light beam forms a variety of setpoint colors after the second spectrophotometric unit 24 is divided
Light beam, the light beam timing is emitted in the optical channel 25 after being set to second spectrophotometric unit 24, via optical channel 25
Timing is emitted to spatial light modulator 3.
It please refers to shown in Fig. 2, is the specific architecture diagram of the first embodiment of light-source system 2, in the present embodiment,
The luminescence unit 20 is the blue mode of laser group 20a of a transmitting blue laser, and the light path switch unit 21 is a light splitting wheel
21a, first spectrophotometric unit 22 are an anti-blue yellow membrane piece 22a thoroughly, and the wavelength conversion unit 23 is a fluorescence colour wheel 23a,
More specifically, for a yellow fluorescence colour wheel, second spectrophotometric unit 24 repairs colour wheel 24a for one.The following specifically describes all parts
Structure and function.
The light splitting wheel 21a is by the blue laser of transmission or reflection indigo plant mode of laser group 20a transmitting to make blue laser
Into the first light path L1a or enter the second light path L2a.Light splitting wheel 21a rotates about axis by driving device 210a driving
Rotation, please refers to shown in Fig. 3, and light splitting wheel 21a is divided into transmission region 211a and reflecting region 212a along its direction of rotation, is being divided
When taking turns 21a rotation, transmission region 211a and reflecting region 211b cut the propagation path of blue laser in turn, so that blue be made to swash
Light sequential enters the first light path L1a and the second light path L2a.In the present embodiment, due to being synthesized by spatial light modulator 3
White light only needs a small amount of blue light, therefore reflecting region 212a accounting is small compared with transmission region 211a.
In the present embodiment, a relay system 26 is additionally provided on the first light path L1a, wherein the relay system
26 include that the hot spot relay system 261 set gradually along the first light path L1a, scattering sheet 262, optical tunnel 263 and convergence are saturating
Mirror 264.The hot spot relay system 261 is used to that even light will to be relayed into the blue laser light spot focus of the first light path L1a
The entrance of stick 263 is divided influence of the spoke area to launching spot on wheel 21a to reduce, is incident to light splitting in the present embodiment
The laser facula of wheel 21a is controlled as small as far as possible.Wherein, the spoke area refer to the light splitting upper transmission region 211a of wheel 21a with instead
The intersection and intersection two side areas between the 212a of region are penetrated, blue laser is passing through intersection and intersection two side areas
When, hot spot can be covered with transmission region 211a and reflecting region 212a simultaneously, so that hot spot a part be made to be transmitted another part
It is reflected, may be colour mixture light so as to cause the light beam being emitted on colour wheel 24a is repaired.The optical tunnel 263 is used for incident light
Shu Jinhang homogenization, the optical tunnel 263 can be an even smooth square rod.The scattering sheet 262 is set to the entrance of optical tunnel 263
Place, for the light beam that will enter optical tunnel 263 to be diffused, to further increase the uniform of 263 shoot laser of optical tunnel
Change.The blue laser convergence that the convergent lens 264 is used to be emitted from optical tunnel 263 relays to the anti-blue yellow membrane piece thoroughly
22a.The anti-blue yellow membrane piece 22a thoroughly includes opposite the first face 221a and the second face 222a, by the first light path L1a incidence
Blue laser beams are conducted to the first face 221a of anti-blue yellow membrane piece 22a thoroughly, and by the first face of the anti-blue yellow membrane piece 22a thoroughly
221a reflexes to the fluorescence colour wheel 23a, and blue laser is absorbed by yellow fluorescent powder on fluorescence colour wheel 23a and excites yellow fluorescence
Powder generates yellow light.
In the present embodiment, guidance system 27 is additionally provided on the second light path L2a, the guidance system 27 is used for will
It is guided by the light splitting wheel 21a blue laser beams reflected to the second face 222a of the anti-blue yellow membrane piece 22a thoroughly.It is described to lead
To system 27 in the present embodiment be a mirror system, successively include the first reflective mirror 271, the second reflective mirror 272 and
Third reflective mirror 273.First reflective mirror 271 is substantially in parallel set towards light splitting wheel 21a, with light splitting wheel 21a
It sets, second face 222a and the second face 222a of the third reflective mirror 273 towards the anti-blue saturating yellow membrane piece 22a are substantially
It is set in parallel, second reflective mirror 272 is set between first reflective mirror 271 and third reflective mirror 273, and described
The substantially vertical setting of first reflective mirror 271, third reflective mirror 273, the blue laser beams quilt reflected from the light splitting wheel 21a
First reflective mirror 271 reflexes on the second reflective mirror 272, then is reflexed on third reflective mirror 273 by the second reflective mirror 272, most
The second face 222a of anti-blue yellow membrane piece 22a thoroughly is reflexed to by third reflective mirror 273 eventually.
In the present embodiment, the light splitting wheel 21a and anti-blue yellow membrane piece 22a thoroughly is arranged substantially in parallel, the first light
Path L1a and fluorescence colour wheel 23a are located on different dimensions, are so to avoid fluorescence colour wheel 23a and be set to fluorescence colour wheel 23a
Optical instrument between anti-blue yellow membrane piece 22a thoroughly on the second light path L2a light beam block or other influences, guidance system
27 and second light path L2a be around the fluorescence colour wheel 23a and to be set to fluorescence colour wheel 23a and anti-blue yellow membrane piece 22a thoroughly
Between optical instrument setting, i.e., the described fluorescence colour wheel 23a and be set to fluorescence colour wheel 23a and anti-blue yellow membrane piece 22a thoroughly it
Between optical instrument be set on the inside of the guidance system 27 and the second light path L2a.
In the present embodiment, fluorescence colour wheel 23a rotates about axis rotation by driving device 230a driving.In iridescent
During taking turns 23a rotation, fluorescence colour wheel is projected to by the anti-blue laser that yellow membrane piece 22a reflexes to fluorescence colour wheel 23a blue thoroughly
The different location of 23a, so that the efficiency of fluorescence colour wheel 23a is improved, in addition, to further increase the efficiency of fluorescence colour wheel 23a, this
A collection system 27 is also provided in embodiment between fluorescence colour wheel 23a and anti-blue yellow membrane piece 22a thoroughly to being incident to fluorescence
The light beam of colour wheel 23a carries out shaping and homogenization, and the collection system 27 is a lens group in the present embodiment.
The blue laser beams of anti-blue yellow membrane piece 22a thoroughly are reached by the of anti-blue yellow membrane piece 22a thoroughly by the first light path L1a
221a reflexes to the fluorescence colour wheel 23a on one side, excites the fluorescence colour wheel 23a to generate yellow light, the yellow light is through the lens
Group 27 is back to the anti-blue yellow membrane piece 22a thoroughly, and is transmitted through via anti-blue yellow membrane piece 22a thoroughly and described repairs colour wheel 24a.Another party
Face reaches the blue laser beams of anti-blue yellow membrane piece 22a thoroughly by the of the anti-blue yellow membrane piece 22a thoroughly by the second light path L2a
Two face 222a repair colour wheel 24a described in reflexing to.Therefore, the first light path L1a and the second optical path are emitted to by light splitting wheel 21a timing
In the blue laser beams of diameter L2a, wherein a branch of be converted into yellow light, another beam is still blue light, and two light beams timing is incident to
Described to repair colour wheel 24a, the light beam for repairing the final timing outgoing multi beam setpoint color of colour wheel 24a is into spatial light modulator 3.
It is described repair colour wheel 24a by a driving device 240a driving rotate about axis rotation, in the present embodiment, repair colour wheel
24a and light splitting wheel 21a are rotated synchronously.It please refers to shown in Fig. 4, repairs colour wheel 24a along its direction of rotation and be divided into multiple coloured light areas, at this
It is red light region R, yellow region Y, green wavelength G and blue region B in embodiment.Wherein, red light region R, yellow light area
Echo area on the corresponding light splitting wheel 21a of transmission region 211a on domain Y light splitting wheel 21a corresponding with green wavelength G, blue region B
Domain 212a.That is, repairing colour wheel 24a synchronous rotary when light splitting wheel 21a rotation makes blue laser through transmission region 211a
The yellow light for generating fluorescence colour wheel 23a successively reaches red light region R, yellow region Y and green wavelength G, the red light region R will
Yellow light is divided into feux rouges and green light, and wherein green light is reflected, and feux rouges is transmitted into the optical channel 25, the yellow region
Y transmission yellow light makes it into the optical channel 25, and yellow light is divided into feux rouges and green light by the green wavelength G, wherein feux rouges quilt
It reflects away, green light is transmitted into the optical channel 25.Keep blue laser anti-by reflecting region 212a in light splitting wheel 21a rotation
When penetrating, repairing colour wheel 24a synchronous rotary makes blue laser by blue region B, and blue region B transmission blue light makes it into the light
In channel 25.In the present embodiment, scattering sheet (not shown) is provided on blue region B.The scattering sheet is used for incidence
The angle of laser is adjusted, make be emitted blue laser angle more evenly change, on the other hand, scattering sheet also to incident laser into
Row eliminating coherence.It is appreciated that in another embodiment, also settable scattering sheet on the yellow region Y.
In the above-described embodiment, the anti-blue yellow membrane piece 22a thoroughly and light splitting wheel 21a is arranged substantially in parallel, and is so existed
In other embodiments, the anti-blue yellow membrane piece 22a thoroughly and light splitting wheel 21a can also be generally perpendicular to each other setting, by being divided
The blue laser of wheel 21a transmission is reflexed to by the anti-blue yellow membrane piece 22a thoroughly and is repaired on colour wheel 24a, and by light splitting wheel 21a reflection
Blue laser reflexes to fluorescence colour wheel 23a by the anti-blue yellow membrane piece 22a thoroughly.In addition, other optical components can also carry out phase
It should adjust, for example, the relay system 26 can be set on the second light path L2a, be located at guidance system 27 and anti-blue thoroughly yellow
Between diaphragm 22a.In addition, the ratio of transmission region 211a and reflecting region 212a can also corresponding changes on light splitting wheel 21a.
It is appreciated that in other embodiments, fluorescence colour wheel 23a both can with light splitting wheel 21a, to repair colour wheel 24a synchronous
Rotation can not also take turns 21a with light splitting, repair colour wheel 24a synchronous rotation.
It is appreciated that it is anti-with many places that many places transmission region 211a can be set in other embodiments, on light splitting wheel 21a
Region 212a is penetrated, transmission region 211a and the interval reflecting region 212a are arranged.
It is appreciated that in other embodiments, repair can be set on colour wheel 24a multiple red area R, yellow area Y,
Certain regularly arranged setting is pressed in green area G and blue region B, these regions.
The optical channel 25 can be an optical tunnel, and in one embodiment, the optical channel 25 is an even smooth square rod.
It please refers to shown in Fig. 5, is the specific architecture diagram of second of embodiment of light-source system 2, in the present embodiment,
The luminescence unit 20 is a combined light source 20b, the combined light source 20b timing transmitting red laser beam and blue laser including
Emit the blue mode of laser group 200b of blue laser and the red mode of laser group 201b of transmitting red laser beam, the light path switch unit
21 take turns 21b for a light splitting, and first spectrophotometric unit 22 is an anti-blue yellow membrane piece 22b thoroughly, and the wavelength conversion unit 23 is one
Fluorescence colour wheel 23b, more specifically, for a yellow fluorescence colour wheel, second spectrophotometric unit 24 repairs colour wheel 24b for one.
The light splitting wheel 21b includes a transmission region (not shown) and a reflecting region (not shown), the transmission region
Timing transmits the red laser and blue laser of the combined light source 20b transmitting, enters red laser and blue laser timing
The blue laser of combined light source 20b transmitting is reflected in first light path L1b, the reflecting region, and blue laser is made to enter the
Two light path L2b.
In the timing of combined light source 20b transmitting red laser beam, light splitting wheel 21b goes to the preceding part of transmission region, red
Laser reaches the first face 221b of anti-blue yellow membrane piece 22b thoroughly via the first light path L1b, and by the anti-blue yellow membrane piece 22b thoroughly
The first face 221b reflex to the fluorescence colour wheel 23b.In the present embodiment, the first face of the anti-blue yellow membrane piece 22b thoroughly
The region that red laser incidence is corresponded on 221b is provided with an anti-red diaphragm, and the incident red laser of the anti-red diaphragm reflection is extremely
Fluorescence colour wheel 23b.In other embodiments, the anti-red diaphragm can also be replaced by anti-red coating.The red laser is glimmering
It is reflected onto anti-blue yellow membrane piece 22b thoroughly after photochromic wheel 23b eliminating coherence, then is transmitted through by anti-blue yellow membrane piece 22b thoroughly and described repairs colour wheel
24b。
In the timing of combined light source 20b transmitting blue laser, the light splitting wheel 21 goes to the rear part of transparent region simultaneously
Continue to go to reflecting region, therefore, the blue laser that combined light source 20b emits in front timesharing sequence is via the first light path
L1b reaches the first face of anti-blue yellow membrane piece 22b thoroughly, and is reflexed to by the first face 221b of the anti-blue yellow membrane piece 22b thoroughly described
Fluorescence colour wheel 23b.The blue laser that combined light source 20b emits in rear portion timesharing sequence reaches anti-blue via the second light path L2b
The second face 222b of saturating yellow membrane piece 22b is reflexed to by the second face 222b of the anti-blue yellow membrane piece 22b thoroughly and described is repaired colour wheel 24b.
It please referring to shown in Fig. 6, the colour wheel 24b that repairs includes a red light region R, a green wavelength G and a blue region B,
It is described repair colour wheel 24b rotation red light region R, green wavelength G and blue region B made cuts anti-blue saturating yellow membrane piece 22b in turn be emitted
The light path of light beam, it is in the present embodiment, described to repair colour wheel 24b's in the timing of combined light source 20b transmitting red laser beam
The light path of the anti-blue yellow membrane piece 22b outgoing beam thoroughly of red light region R incision, from the anti-feux rouges that yellow membrane piece 22b is transmitted blue thoroughly by institute
It states red light region R and is transmitted into the optical channel 25.It is described in the front timesharing sequence of combined light source 20b transmitting blue laser
The light path for repairing the anti-blue yellow membrane piece 22b outgoing beam thoroughly of green wavelength G incision of colour wheel 24b, from anti-blue yellow membrane piece 22b transmission thoroughly
Yellow light feux rouges and green light are divided by the green wavelength G, wherein feux rouges is reflected, and green light is transmitted into the optical channel
25.In the rear portion timesharing sequence of combined light source 20b transmitting blue laser, the blue region B incision for repairing colour wheel 24b is anti-blue saturating
The light path of yellow membrane piece 22b outgoing beam is transmitted into from the anti-blue light that yellow membrane piece 22b reflects blue thoroughly by the blue region B
The optical channel 25.
In the present embodiment, identical as the first embodiment, the second light path L2b and fluorescence colour wheel 23b distinguish position
In in the two-dimensional surface of two intersections, the second light path L2b is also around the fluorescence colour wheel 23b and to be set to fluorescence colour wheel
Optical instrument between 23b and anti-blue yellow membrane piece 22b thoroughly is arranged.The i.e. described fluorescence colour wheel 23b and it is set to fluorescence colour wheel 23b
Optical instrument between anti-blue yellow membrane piece 22b thoroughly is set on the inside of the second light path L2b.
In the present embodiment, unlike the first embodiment, in red light portion, due to using propagation more
Feux rouges needed for small red laser obtains imaging instead of blue laser, makes the more efficient of red light portion.
It is appreciated that in another embodiment, during repairing colour wheel 24b and persistently rotating, the combined light source
20b can emit always blue laser, and be only in the anti-blue yellow membrane piece 22b outgoing beam thoroughly of red light region R incision for repairing colour wheel 24b
Light path when, combined light source 20b opens transmitting red laser beam, therefore, anti-blue thoroughly in the red light region R incision for repairing colour wheel 24b
After the light path of yellow membrane piece 22b outgoing beam, on the one hand, blue laser reaches fluorescence colour wheel via anti-blue thoroughly red diaphragm 22b
23b, excitation fluorescence colour wheel 23b generate yellow light, and yellow light is transmitted through the red light region for repairing colour wheel 24b via anti-blue yellow membrane piece 22b thoroughly
R is divided into feux rouges and green light by red light region R, and wherein feux rouges is transmitted into optical channel 25, and green light is reflected, on the other hand,
Red laser reaches fluorescence colour wheel 23b via anti-blue yellow membrane piece 22b thoroughly, through by anti-blue yellow membrane piece 22b transmission thoroughly after eliminating coherence
To the red light region R for repairing colour wheel 24b, and optical channel 25 is further transmitted by red light region R, thus to being separated by yellow light
Feux rouges plays supplement, further enhances the efficiency of red light portion.
The other structures of light-source system 2 are not described in detail in present embodiment, can in first embodiment
Corresponding construction is identical, appropriate change can also be made on the basis of corresponding construction in the first embodiment, for example, in this embodiment party
In formula, it is provided with relay system 26b on the first light path L1b, hot spot relay system is provided on relay system 26b
261b, scattering sheet 262b, optical tunnel 263b and convergent lens 264b, wherein anti-blue yellow membrane piece 22b thoroughly is set to convergent lens
The focal position of 264b can so make to need the region that anti-red diaphragm is arranged to minimize on anti-blue yellow membrane piece 22b thoroughly, be more advantageous to indigo plant
The yellow light and/or anti-blue yellow membrane piece thoroughly is passed through by the feux rouges of fluorescence colour wheel 23b reflection that color LASER Excited Fluorescence colour wheel 23b is generated
22b reaches the red light region for repairing colour wheel 24b, further promotes the efficiency of red light portion.
It please refers to shown in Fig. 7 and Fig. 8, is the specific architecture diagram of the third embodiment of light-source system 2, in this embodiment party
In formula, the luminescence unit 20 is that combined light source a 20c, the combined light source 20c includes the blue mode of laser for emitting blue laser
The red mode of laser group 201c of group 200c and transmitting red laser beam, the light path switch unit 21 are that 21c is taken turns in a light splitting, described the
One spectrophotometric unit 22 is an anti-blue yellow membrane piece 22c thoroughly, and the wavelength conversion unit 23 is a fluorescence colour wheel 23c, more specifically, being
One yellow fluorescence colour wheel, second spectrophotometric unit 24 repair colour wheel 24c for one.
The combined light source 20c, light splitting wheel 21c, anti-blue yellow membrane piece 22c, fluorescent wheel 23c and the work for repairing colour wheel 24c thoroughly
Making principle can be substantially identical as the working principle of the corresponding component in second embodiment, the combined light source 20c can with when
Sequence transmitting red laser beam and blue laser, alternatively, combined light source 20c persistently emits during repairing colour wheel 24c and persistently rotating
Blue laser emits red and swashs when the red light region for repairing colour wheel 24c enters the anti-blue emergent light path of yellow membrane piece 22c thoroughly
Light, therefore not to repeat here.
In the present embodiment, it is with the maximum difference of second of embodiment, the second optical path in present embodiment
Diameter L2c is located in two parallel two-dimensional surfaces with fluorescence colour wheel 23c, to make the second light path in present embodiment
L2c may be disposed between fluorescence colour wheel 23c and anti-blue yellow membrane piece 22c thoroughly, and the second light path L2c is blue from fluorescence colour wheel 23c and instead
Pass through between saturating yellow membrane piece 22c, and height of the second optical path L2c diameter at least one dimension direction exists lower than fluorescence colour wheel 23c
The height in the dimension direction, that is to say, that the short transverse of fluorescence colour wheel 23c is re-used, to reduce the body of light-source system 2
Product, reduces the structure design difficulty of light-source system 2.
It please refers to shown in Fig. 9, is the block diagram of second of embodiment of optical projection system of the present invention.The projection system
System includes light-source system 5, spatial light modulator 6 and projection lens 7.The light beam being emitted from the light-source system 5 is by spatial light tune
Device 6 processed is modulated into the image light for carrying image information, then is projected to a screen (not shown) through projection lens 7, and it is aobvious to form image
Show to user.
In the present embodiment, the light-source system 5 includes luminescence unit 50, the light splitting of light path switch unit 51, first
Unit 52, wavelength conversion unit 53 and the second spectrophotometric unit 54.The light path switch unit 51 emits luminescence unit 50
Light beam switch into the first light path L3 or the second light path L4, by the first light path L3, the second light path L4 be emitted light
Shu Jun reaches the first spectrophotometric unit 52, and the first spectrophotometric unit 52 is according to the difference of incident beam light path, respectively by incident beam
It guides to wavelength conversion unit 53 or the second spectrophotometric unit 54.The light beam that the luminescence unit 50 emits is also via third light path
L5 reaches the first spectrophotometric unit 52, by first spectrophotometric unit 52 guidance to wavelength conversion unit 53.Via wavelength convert list
Light beam after 53 progress wavelength convert of member is directed at the second spectrophotometric unit 54 via the first spectrophotometric unit 52 again.Light beam is passing through second
After the light splitting of spectrophotometric unit 54, the light beam of a variety of setpoint colors is formed, the light beam timing, which is emitted to, is set to described second point
In optical channel 55 after light unit 54, spatial light modulator 6 is emitted to via 55 timing of optical channel.
It please refers to shown in Figure 10-12, is a kind of specific architecture diagram of embodiment of light-source system 5, in present embodiment
In, the luminescence unit 50 is that combined light source a 50a, the combined light source 50a includes the blue mode of laser of a transmitting blue laser
The red mode of laser group 501a of group 500a and a transmitting red laser beam.The blue laser of the indigo plant mode of laser group 500a transmitting is via light
51 timing of path switching unit enters the first light path L3 and the second light path L4, the red of the red mode of laser group 501a transmitting
Laser enters third light path L5.The light path switch unit 51 is that 51a is taken turns in a light splitting, and first spectrophotometric unit is one anti-
Blue yellow membrane piece 52a thoroughly, the wavelength conversion unit 53 are a fluorescence colour wheel 53a, more specifically, for a yellow fluorescence colour wheel, it is described
Second spectrophotometric unit 54 repairs colour wheel 54a for one.
The combined light source 50a, light splitting take turns 51a, anti-blue yellow membrane piece 52a, fluorescent wheel 53a thoroughly and repair colour wheel 54a structure
Complete description is no longer done with working principle and the same or similar place of other embodiments described above, and only main introduction
With the difference of embodiment of above.
The main difference of present embodiment and the third embodiment of light-source system 2 is, in the third of light-source system 2
In kind embodiment, the red laser of red mode of laser group 201c transmitting enters the first light path L1c via light splitting wheel 21c, so exists
In present embodiment, the red laser of red mode of laser group 501a transmitting enters the first light path L3 without light splitting wheel 51a, but straight
It taps into third light path L5.Relay system 56 is provided on first light path L3, the relay system 56 includes an optical tunnel
561.A convergent lens 57 and an anti-blue red diaphragm 58 thoroughly are provided on third light path L5, the red laser is through overconvergence
Enter anti-blue yellow membrane piece 52a thoroughly after lens 57 and anti-blue red diaphragm 58 thoroughly, fluorescence colour wheel is reflexed to by anti-blue yellow membrane piece 52a thoroughly
53a.Since red laser is not required to the even light by optical tunnel, it is more advantageous to the etendue for reducing red light portion, is had
Conducive to the efficiency for improving red light portion.In addition, red laser enters anti-blue yellow membrane piece 52a thoroughly after the focusing of convergent lens 57,
Anti- blue yellow membrane piece 52a thoroughly is set to the focal position of convergent lens 57, so as to make to need setting anti-red on anti-blue yellow membrane piece 52a thoroughly
The region of diaphragm minimizes, and is more advantageous to by the blue laser excitation fluorescence colour wheel 53a yellow light generated and/or by fluorescence colour wheel
The feux rouges of 53a reflection reaches the red light region (not shown) for repairing colour wheel 54a by anti-blue yellow membrane piece 52a thoroughly, is further promoted red
The efficiency of light part.
A reflective mirror 59 is also provided on the first light path L3, the reflective mirror 59 will be by the indigo plant of relay system 56
On color laser reflection to anti-blue red diaphragm 58 thoroughly, reflexed on anti-blue yellow membrane piece 52a thoroughly via anti-blue red diaphragm 58 thoroughly, then via
Anti- blue yellow membrane piece thoroughly reflexes on fluorescence colour wheel 53a, so that fluorescence colour wheel 53a be excited to generate yellow light, generated yellow light is penetrated
Anti- blue yellow membrane piece 52a thoroughly reaches the green wavelength (not shown) for repairing colour wheel 54a.
The second light path in present embodiment in the setting of the second light path L4 and the third embodiment of light-source system 2
The setting of L1c is similar, i.e. the second light path L4 is set between fluorescence colour wheel 53a and anti-blue yellow membrane piece 52a thoroughly, the second light path
L4 passes through between fluorescence colour wheel 53a and anti-blue yellow membrane piece 52a thoroughly, and the second light path L4 is in the height at least one dimension direction
Height of the degree lower than fluorescence colour wheel 53a in the dimension direction, that is to say, that the short transverse of fluorescence colour wheel 53a is re-used, thus
The volume for reducing light-source system 5 reduces the structure design difficulty of light-source system 5.
In conclusion light-source system and optical projection system that embodiment of the present invention provides, since light-source system utilizes yellow light
Carry out isolated feux rouges, and due to integrally-built arrangement, improves the optical projection system using one chip spatial light modulator
The efficiency of light energy utilization, to improve the display brightness of optical projection system；On the other hand, in some embodiments, pass through optics member
One dimension direction of one light path multiplexing fluorescence colour wheel is made light-source system and using the light-source system by the suitable arrangement of part
The more compact structure of optical projection system, and reduce the difficulty of light-source system structure design.
Embodiment of above is only used to illustrate the technical scheme of the present invention and not to limit it, although referring to the above preferable embodiment party
Formula describes the invention in detail, those skilled in the art should understand that, it can be to technical solution of the present invention
It modifies or equivalent replacement should not all be detached from the spirit and scope of technical solution of the present invention.
Claims (17)
1. a kind of light-source system, which is characterized in that turn including luminescence unit, light path switch unit, the first spectrophotometric unit, wavelength
Change unit and the second spectrophotometric unit, wherein the luminescence unit emits light beam, and the light path switch unit is used for the hair
The light beam of light unit transmitting switches into one first light path or one second light path, and first spectrophotometric unit is set to first
Light path and the second light path end, for wavelength will to be separately directed to from the light beam of the first light path and the incidence of the second light path
Converting unit or the second spectrophotometric unit, first spectrophotometric unit are also used to be emitted after wavelength conversion unit is carried out wavelength convert
Light beam guide to the second spectrophotometric unit, timing is emitted after second spectrophotometric unit is used to for incident light beam being divided,
Second light path passes through between the wavelength conversion unit and first spectrophotometric unit, and second light path is extremely
Height of the height in a few dimension direction lower than the wavelength conversion unit in the dimension direction.
2. light-source system as described in claim 1, which is characterized in that further include that an optical channel is set to the second light splitting list
After member, for guiding the light beam being emitted from second spectrophotometric unit to a spatial light modulator.
3. light-source system as described in claim 1, which is characterized in that first spectrophotometric unit is used for will be from first light
The light beam of path incidence is guided to wavelength conversion unit and will be guided from the light beam of the second light path incidence to second point
Light unit, alternatively, first spectrophotometric unit by from the light beam of the first light path incidence guide to the second spectrophotometric unit with
And it will guide from the light beam of the second light path incidence to wavelength conversion unit.
4. light-source system as claimed in claim 3, which is characterized in that a relay system is provided on first light path,
The relay system includes an optical tunnel, a scattering sheet, a hot spot relay system and a convergent lens, and the optical tunnel is used for will
Incident beam uniformity, the scattering sheet is set to the inlet of the optical tunnel, for that will will enter the light of optical tunnel
Beam is diffused, and the hot spot relay system is used to the beam and focus for entering first light path relaying to the optical tunnel
Inlet, the convergent lens relays to first spectrophotometric unit for assembling the light beam that be emitted from the optical tunnel
On.
5. light-source system as claimed in claim 3, which is characterized in that mirror system is provided on second light path,
The mirror system is used to guide the light beam for entering the second light path to first spectrophotometric unit.
6. light-source system as claimed in claim 5, which is characterized in that be also provided with a relaying system on second light path
System, the relay system are set to after the mirror system, and the relay system includes an optical tunnel, and the optical tunnel is used
In by incident beam uniformity.
7. light-source system as described in claim 1, which is characterized in that the light path switch unit passes through transmission and reflection
The light beam timing that mode emits the luminescence unit cuts first light path and the second light path.
8. light-source system as described in claim 1, which is characterized in that the luminescence unit transmitting blue laser or transmitting are blue
Color laser and red laser.
9. light-source system as claimed in claim 8, which is characterized in that first spectrophotometric unit is an anti-blue yellow membrane piece thoroughly,
The anti-blue yellow membrane piece thoroughly is used to incident blue laser reflexing to wavelength conversion unit or the second spectrophotometric unit and will enter
The yellow light penetrated and/or from the red transmission that wavelength conversion unit is emitted to the second spectrophotometric unit.
10. light-source system as claimed in claim 9, which is characterized in that the anti-blue yellow membrane piece thoroughly is towards red laser incidence
Region be provided with an anti-red diaphragm perhaps the anti-red coating anti-red diaphragm or anti-red coating be used to swash the red of incidence
Light reflexes to the wavelength conversion unit.
11. light-source system as claimed in claim 10, which is characterized in that the wavelength conversion unit is a yellow fluorescence colour wheel,
The Huang fluorescence colour wheel is used to absorb the blue laser by the anti-blue reflection of yellow membrane piece thoroughly and generates yellow light, and the second spectrophotometric unit is one
Colour wheel is repaired, the colour wheel of repairing includes multiple coloured light areas, and coloured light area timing cuts the emitting light path of the anti-blue yellow membrane piece thoroughly
Diameter, to make to repair the light beam of colour wheel timing outgoing setpoint color to a spatial light modulator.
12. light-source system as claimed in claim 11, which is characterized in that the coloured light area for repairing colour wheel includes a red light district
Domain, a green wavelength and a blue region, the red light region is used to for incident yellow light to be divided into feux rouges and green light and outgoing are red
For light to the spatial light modulator, the green wavelength is used to for incident yellow light being divided into feux rouges and green light and outgoing green light to institute
Spatial light modulator is stated, the blue region is used to incident blue laser being emitted to the spatial light modulator.
13. light-source system as claimed in claim 12, which is characterized in that the blue region is provided with scattering sheet.
14. light-source system as claimed in claim 12, which is characterized in that the coloured light area further includes a yellow region, described
Yellow region is used to incident yellow light being emitted to the spatial light modulator.
15. light-source system as claimed in claim 8, which is characterized in that the red laser of the luminescence unit transmitting is via one
Third light path is incident to first spectrophotometric unit, and the blue laser of the luminescence unit transmitting is via first light path
First spectrophotometric unit is incident to the second light path timing.
16. light-source system as claimed in claim 15, which is characterized in that it is anti-blue thoroughly red to be provided with one on the third light path
Diaphragm, the reflective mirror for being provided with a relay system on first light path and being placed in after the relay system, the relaying
System includes an optical tunnel, and the blue laser for entering first light path is reflexed to the anti-blue red film thoroughly by the reflective mirror
Piece, and first spectrophotometric unit is reflexed to by the anti-blue yellow membrane piece thoroughly, the red laser is via described anti-blue thoroughly red
Diaphragm is transmitted through first spectrophotometric unit.
17. a kind of optical projection system, which is characterized in that empty including such as described in any item light-source systems of claim 1-16 and one
Between optical modulator, the modular spatial light modulator is used for the beam modulation that is emitted the light-source system at carrying image letter
The image light of breath.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710453858.7A CN109143744B (en) | 2017-06-15 | 2017-06-15 | Light source system and projection system using same |
| PCT/CN2017/100575 WO2018227786A1 (en) | 2017-06-15 | 2017-09-05 | Light source system and projection system using the light source system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710453858.7A CN109143744B (en) | 2017-06-15 | 2017-06-15 | Light source system and projection system using same |
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| CN109143744A true CN109143744A (en) | 2019-01-04 |
| CN109143744B CN109143744B (en) | 2021-06-29 |
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| CN201710453858.7A Active CN109143744B (en) | 2017-06-15 | 2017-06-15 | Light source system and projection system using same |
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| CN (1) | CN109143744B (en) |
| WO (1) | WO2018227786A1 (en) |
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| CN110716380A (en) * | 2019-11-25 | 2020-01-21 | 成都极米科技股份有限公司 | Light source system and projector |
| CN113885286A (en) * | 2019-09-03 | 2022-01-04 | 美商晶典有限公司 | Laser projection optical light source structure |
| WO2024109913A1 (en) * | 2022-11-25 | 2024-05-30 | 赵隽 | Illumination device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109143744B (en) | 2021-06-29 |
| WO2018227786A1 (en) | 2018-12-20 |
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