CN107479313A - A kind of LASER Light Source and projection display apparatus - Google Patents
A kind of LASER Light Source and projection display apparatus Download PDFInfo
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- CN107479313A CN107479313A CN201710934114.7A CN201710934114A CN107479313A CN 107479313 A CN107479313 A CN 107479313A CN 201710934114 A CN201710934114 A CN 201710934114A CN 107479313 A CN107479313 A CN 107479313A
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- laser
- light source
- transmission
- laser light
- lens group
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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
- G03B21/208—Homogenising, shaping of the illumination light
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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 LASER Light Source and projection display apparatus, the LASER Light Source includes laser, transmission-type fluorescent wheel and is arranged between the laser and transmission-type fluorescent wheel to homogenize component, wherein, transmission-type fluorescent wheel is provided with laser transmission area and Fluoroscopic area.The homogenized component Formation cross-section of laser that laser is sent is the square laser beam for homogenizing hot spot, and the laser beam is irradiated on the transmission-type fluorescent wheel of rotation, and when being irradiated to laser transmission area, laser is gone out from laser transmissive region；When being irradiated to Fluoroscopic area, the fluorescent material of LASER Excited Fluorescence transmission area, produce fluorescence and transmitted away from Fluoroscopic area.With the continuous rotation of transmission-type fluorescent wheel, the LASER Light Source constantly provides fluorescence and laser.This LASER Light Source light channel structure is simpler, meanwhile, the loss of laser greatly reduces, and can greatly improve the utilization rate of laser.
Description
Technical field
The present invention relates to technical field of laser display, more particularly to a kind of LASER Light Source and projection display apparatus.
Background technology
With the continuous improvement of the market demand, high brightness, large scale, high-resolution projector are more and more by city
Field concern.LASER Light Source is projecting because the advantages that its unit area luminous power is high, service life is long, color is good starts to apply
In machine technology.But due to the features such as green laser is immature, efficiency is low, fluorescent material is used generally in LASER Light Source, profit
The fluorescence of the colors such as green is sent with the mode of LASER Excited Fluorescence powder, so as to provide R, G, B light for projector.
At present, the conventional LASER Light Source of projector, as shown in figure 1, including laser 1；It is arranged on the light direction of laser 1
On diffusion sheet 2；Be arranged on the light direction of diffusion sheet 2 and with the dichroscope 3 at light direction angle at 45 °；It is arranged on dichroic
The reflective fluorescent wheel 5 of the light direction of mirror 3, reflective fluorescent wheel 5 are provided with laser transmission area and scribble the phosphor region of fluorescent material；
The relaying loop 7 being arranged on around reflective fluorescent wheel 5, wherein, relaying loop 7 be three lens and three speculum groups into
Optical path changing system；And be arranged on the side of diffusion sheet 2 and filter wheel 8 vertically disposed with the light direction of laser 1 and set
Component 9 is homogenized in the light direction of filter wheel 8；In addition, also include two collimator assemblies, wherein, dichroscope 3 and reflective glimmering
Collimator assembly 4 is set between halo 5, collimator assembly 6 is set between reflective fluorescent wheel 5 and relaying loop 7.In use, laser
The laser that device 1 is launched forms circular Gaussian beam after diffusion sheet 2, and through dichroscope 3, collimated component 4 shines after collimating
It is mapped on the reflective fluorescent wheel 5 of rotation.When laser is irradiated to laser transmission area, laser light laser transmission area, by standard
After straight component 6 collimates, turned to by relaying loop 7, homogenize in component 9 and homogenize by the entrance of filter wheel 8；When laser be irradiated to it is glimmering
During light area, laser is excited to send fluorescence in phosphor region, and dichroscope 3 is irradiated to after the collimated component 4 of the fluorescence excited, through two to
Look mirror 3 reflexes to filter wheel 8 and filtered, and the fluorescence after filtering, which also enters, to be homogenized component 9 and homogenized, and then passes through collimation lens 10
Collimation and be imaged, with the rotation of reflective fluorescent wheel 5, constantly obtained at the light extraction of collimation lens 10 square focus spot laser and
Fluorescence.The laser and fluorescence that the LASER Light Source is sent are imaged on the display chip of ray machine, and image is realized finally by camera lens 13
Output, wherein, the display chip includes LCD (Liquid Crystal Display, LCDs), DMD (Digital
Micromirror Device, DMD) (Liquid Crystal on Silicon, liquid crystal are attached by chip or LCOS
Silicon) chip.By taking the ray machine of dmd chip composition as an example, inside laser and Fluoroscopic that LASER Light Source is sent to ray machine, in ray machine
First inclined-plane 121 of internal TIR (total internal reflection, total internal reflection) prism group 12 is totally reflected
And DMD11 is reflexed to, realize that image exports finally by camera lens 13.
But LASER Light Source of the prior art, laser is transmitted through also needing to after the laser transmission area of reflective fluorescent wheel 5
It could be entered after relaying loop is turned to by filter wheel 8 and homogenize component 9, relaying loop 7 is three lens and three
Speculum group is into light channel structure is complicated.
The content of the invention
The invention provides a kind of LASER Light Source and projection display apparatus, to solve problems of the prior art.
In a first aspect, the embodiments of the invention provide a kind of LASER Light Source, including laser, transmission-type fluorescent wheel and set
Put and homogenize component between the laser and transmission-type fluorescent wheel, wherein, it is saturating that the transmission-type fluorescent wheel is provided with laser
Penetrate area and Fluoroscopic area.
Second aspect, present invention also offers a kind of projection display apparatus, including LASER Light Source, ray machine, camera lens and throwing
Shadow screen, the LASER Light Source provides illumination for the ray machine, and is projected to the projection screen display image by the camera lens,
The LASER Light Source is the LASER Light Source described in first aspect.
Technical scheme provided by the invention can include the following benefits：
LASER Light Source and projection display apparatus provided in an embodiment of the present invention, the homogenized component shape of laser that laser is sent
It is the square laser beam for homogenizing hot spot into section, the laser beam is irradiated on the transmission-type fluorescent wheel of rotation, when being irradiated to
During laser transmission area, laser is gone out from laser transmissive region；When being irradiated to Fluoroscopic area, LASER Excited Fluorescence transmission area
Fluorescent material, produce fluorescence simultaneously transmitted away from Fluoroscopic area.With the continuous rotation of transmission-type fluorescent wheel, the LASER Light Source
Fluorescence and laser are constantly provided.LASER Light Source provided in an embodiment of the present invention, on the one hand, laser is transmitted through after transmission-type fluorescent wheel
Laser and fluorescence are directly provided, the design with also needing could to provide after loop and dichroscope laser in the prior art by relaying
Compare, light channel structure is more simple；On the other hand, component is homogenized between laser and transmission-type fluorescent wheel by being arranged on,
The laser homogenizing of transmission-type fluorescent wheel is emitted onto, so that transmission-type fluorescent wheel is emitted homogenized laser and fluorescence, Ke Yizhi
Tap into display chip, substitute in the prior art diffusion sheet, homogenize two devices of component, further simplify light path.The present invention
For the LASER Light Source that embodiment provides for prior art, light channel structure is simpler, meanwhile, the loss of laser subtracts significantly
It is few, the utilization rate of laser can be greatly improved.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
Can the limitation present invention.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation for projection display apparatus that prior art provides；
Fig. 2 is the structural representation of the first LASER Light Source provided in an embodiment of the present invention；
Fig. 3 is the structural representation of second of LASER Light Source provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of transmission-type fluorescent wheel provided in an embodiment of the present invention；
Fig. 5 is the structural representation of the third LASER Light Source provided in an embodiment of the present invention；
Fig. 6 is the structural representation of the 4th kind of LASER Light Source provided in an embodiment of the present invention；
Fig. 7 is the structural representation of the 5th kind of LASER Light Source provided in an embodiment of the present invention；
Fig. 8 is a kind of structural representation of projection display apparatus provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of LASER Light Source, solve in the prior art laser transmitted through also need to after fluorescent wheel through
Cross light channel structure challenge caused by relaying loop turns to.
Embodiment one
The embodiment of the present invention provides a kind of LASER Light Source, as shown in Fig. 2 including the laser set gradually along same light path
1st, component 9 and transmission-type fluorescent wheel 14 are homogenized.
In the light path of laser transmission, more optical mirror slip often be present, for collimating, focusing on, a kind of possible
Embodiment in, as shown in figure 3, the LASER Light Source also includes setting collimator assembly 4 and focus pack 15, wherein, collimator assembly 4
It is arranged on and homogenizes between component 9 and transmission-type fluorescent wheel 14, focus pack 15 is arranged on the light direction of transmission-type fluorescent wheel 14
On.The light direction of focus pack 15 enters the laser and fluorescence quilt that light direction is identical, and focus pack 15 transmits with display chip
Display chip receives.
In above-mentioned LASER Light Source, the transmission path of laser is as described below：
Laser 1 is used to send the laser beam with certain dispersion angle, wherein, laser 1 can be one or more
Individual laser, multiple lasers can improve the brightness of picture.In specific implementation process, laser 1 includes blue laser, blue
Color laser can send blue laser, can also include blue laser and red laser, respectively provide blue laser and
Red laser.
The laser beam that laser 1 is sent, which is irradiated to, to be homogenized on component 9, homogenizes what component 9 can launch laser
Laser beam with certain dispersion angle is homogenized, and Formation cross-section is the square laser beam for homogenizing hot spot.
In embodiments of the present invention, fly's-eye lens can be used or homogenize optical wand by homogenizing component 9.In specific implementation process
In, fly's-eye lens or to homogenize optical wand can be square focus spot by the light spot homogenizing of laser beam.When using fly's-eye lens conduct
When homogenizing component, the single mirror length-width ratio N and display chip length-width ratio M of fly's-eye lens can meet：0.9M<N<M, now, saturating
Penetrate at formula fluorescent wheel 14 into picture it is consistent with the Aspect Ratio of display chip.
It is that the square laser beam for homogenizing hot spot is transmitted to collimator assembly 4, collimator assembly that component 9, which is homogenized, by the section of formation
4 can carry out collimation focusing by the square laser beam for homogenizing hot spot of pair cross-section, it is focused on shape on transmission-type fluorescent wheel 14
Square hot spot is homogenized into one.
As shown in figure 4, transmission-type fluorescent wheel 14 is circular configuration, central shaft position is provided with rotary shaft 143, rotates flat
Face and the laser beam of incidence are vertically arranged, and its circumferencial direction is provided with the He of laser transmission area 141 on transmission-type fluorescent wheel 14
Fluoroscopic area 142.
Specifically, the substrate of transmission-type fluorescent wheel 14 can be circular non-opaque substrate, the circular non-opaque substrate can be
Transparent inorganic glass material, circular non-opaque substrate can transmit the light of visible light wave range.Along circular non-opaque substrate circumferencial direction
Upper setting laser transmission area 141 and Fluoroscopic area 142, the anti-reflection film of wave band where laser transmission area 141 can set laser,
Under such design, power loss can be minimized when laser is transmitted through laser transmission area 141；Fluoroscopic area 142 can
To coat color of object fluorescent material, for example, color of object is green, then green fluorescence can be coated in Fluoroscopic area 142
Powder, when laser is irradiated to green emitting phosphor, green fluorescence can be inspired.
Laser beam after laser transmission area 141 can collimate the collimator assembly 4 is transmitted to focus pack 15, fluorescence
Transmission area 142 collimator assembly 4 can be collimated after excitation laser beam fluorescence and by the Fluoroscopic excited to focus pack
15.When laser is irradiated to laser transmission area 141, will be swashed close to the side of focus pack 15 in transmission-type fluorescent wheel 14
Light；When laser is irradiated to Fluoroscopic area 142, fluorescence will be obtained close to the side of focus pack 15 in transmission-type fluorescent wheel 14.
In embodiments of the present invention, transmission-type fluorescent wheel 14 is driven rotates along its rotary shaft, its rotational plane and incidence
Laser beam be vertically arranged, with the rotation of transmission-type fluorescent wheel 14, it is saturating that incident laser is irradiated to laser within a period of time
Area 141 is penetrated, and Fluoroscopic area 142 is irradiated in a period of time, therefore, with the rotation of transmission-type fluorescent wheel 14, is being transmitted
Formula fluorescent wheel 14 will constantly obtain laser and fluorescence close to the side of focus pack 15.
In specific implementation process, laser 1 can be mono-colour laser, and the one-wavelength laser that mono-colour laser is sent excites
Multicolor fluorescence, when laser 1 is blue laser, Fluoroscopic area 142 can set green fluorescence transmission area 1421 and Huang
Color Fluoroscopic area 1422.When blue laser is irradiated to green fluorescence transmission area 1421, green fluorescence can be excited and transmitted
To focus pack 15；When blue laser is irradiated to yellow fluorescence transmission area 1422, yellow fluorescence can be excited and be transmitted to poly-
Burnt component 15.With the rotation of transmission-type fluorescent wheel 14, constantly there are blue laser, green fluorescence and yellow fluorescence to be transmitted to focusing
Component 15.
Certainly, laser 1 can also be two-color laser device, such as blue laser and red laser, by the two-color laser
Device excites multicolor fluorescence.As Fluoroscopic area 142 can also set green fluorescence transmission area 1421 and yellow fluorescence transmission area
1422, or, 142, Fluoroscopic area setting green fluorescence transmission area.
To on focus pack 15, focus pack 15 will can transmit for laser and Fluoroscopic from transmission-type fluorescent wheel 14
The laser and fluorescent foci that formula fluorescent wheel 14 transmits are on display chip.In specific implementation process, focus pack 15 can be
The first lens group 151 and the second lens group 152 set gradually, by the focussing force of the two lens groups, by laser and glimmering
Light is focused on display chip.
In specific implementation process, when it is fly's-eye lens to homogenize component, in order that the laser and glimmering that display chip obtains
The spot size of light matches with display chip size, single mirror size and display chip size, the Jiao of collimator assembly 4 of fly's-eye lens
Focal length away from, the focal length of the first lens group 151 and fly's-eye lens needs to meet relationship below：Its
In,F1 is the focal length of the fly's-eye lens, and f2 is the focal length of the collimator assembly 4, and f3 is
The focal length of first lens group 151, f4 are the focal length of second lens group 152, and H is the length of the display chip, and L is
The width of the display chip.Fly's-eye lens and collimator assembly 4 form a set of imaging system, into picture through the first lens group 151
The hot spot to match with display chip size is formed after being focused on the focusing system of the second lens group 152.Certainly, it is being embodied
During, above-mentioned relation formula is the single mirror size and display chip size, the focal length of collimator assembly 4, the first lens of fly's-eye lens
The preference relation formula of the focal length of group 151 and the focal length of fly's-eye lens, user can be according to actual conditions, between setting above parameter
Relational expression, it is not specifically limited herein.
Certainly, in specific implementation process, the first lens group 151 and one kind that the second lens group 152 is focus pack 15
Implementation, it can select other that there is the component acted on laser and fluorescent foci as focus pack 15, not do have herein
Body limits.
LASER Light Source provided in an embodiment of the present invention, the homogenized component Formation cross-section of laser that laser is sent are square even
Change the laser beam of hot spot, the laser beam is irradiated on the transmission-type fluorescent wheel of rotation, when being irradiated to laser transmission area, is swashed
Light is gone out from laser transmissive region；When being irradiated to Fluoroscopic area, the fluorescent material of LASER Excited Fluorescence transmission area, produce glimmering
Light simultaneously transmits away from Fluoroscopic area.With the continuous rotation of transmission-type fluorescent wheel, the LASER Light Source constantly provide fluorescence and
Laser.LASER Light Source provided in an embodiment of the present invention, on the one hand, the laser that laser is sent is transmitted through straight after transmission-type fluorescent wheel
Connect and laser and fluorescence are provided, the design phase with also needing could to provide after loop and dichroscope laser in the prior art by relaying
Than light channel structure is more simple；On the other hand, will by the component that homogenizes being arranged between laser and transmission-type fluorescent wheel
The laser homogenizing of transmission-type fluorescent wheel is irradiated to, so that transmission-type fluorescent wheel is emitted homogenized laser and fluorescence, can be direct
Into display chip, substitute in the prior art diffusion sheet, homogenize two devices of component, further simplify light path.It is of the invention real
The LASER Light Source of example offer is applied for prior art, light channel structure is simpler, meanwhile, the loss of laser greatly reduces,
The utilization rate of laser can be greatly improved.
Embodiment two
LASER Light Source provided in an embodiment of the present invention, as shown in figure 5, being with the difference of embodiment one, the laser
The focus pack 15 of light source includes the first lens group 151, the second lens group 152, and in first lens group 151, second
The speculum 153 being obliquely installed between lens group 152, the laser that the first lens group 151 transmits the transmission-type fluorescent wheel 14
On fluorescent foci to speculum 153, speculum 153 is used to give the laser of reception and fluorescent reflection to the second lens group 152, the
Two lens groups 152 are by the laser of reception and fluorescent foci to display chip.By the steering-effecting of speculum 153, will transmit
The laser and the light path of fluorescence that formula fluorescent wheel 14 transmits turn to.
In specific implementation process, the angle for the laser beam that speculum 153 transmits with transmission-type fluorescent wheel 14 can be
45°.By the reflex of speculum 153, the laser that transmission-type fluorescent wheel 14 is transmitted and fluorescence light path turn to 90 °, when this
When LASER Light Source and ray machine etc. form projection display apparatus, the volume of projection display apparatus can be effectively reduced.
The something in common of the embodiment of the present invention and embodiment one, refer to embodiment one, will not be repeated here.
LASER Light Source provided in an embodiment of the present invention, set between the first lens group and the second lens group of focus pack
Inclined speculum, the laser for being received focus pack by the reflex of speculum and fluorescence light path turn to, when the laser
When light source and ray machine etc. form projection display apparatus, the volume of projection display apparatus can be effectively reduced.
Embodiment three
LASER Light Source provided in an embodiment of the present invention, as shown in fig. 6, being with the difference of embodiment one, the laser
The focus pack 15 of light source includes the first lens group 151, the second lens group 152, and in the first lens group 151 and the second lens
The colour filter 154 being obliquely installed between group 152, wherein,
The laser and fluorescent foci that first lens group 151 can transmit the transmission-type fluorescent wheel 14 are to colour filter 154
On.
Colour filter 154 first lens group 151 can be focused on after laser and fluorescence colour filter back reflection to the second lens group
152.In specific implementation process, colour filter 154 is to be provided with the transparency carrier of target wave band color filter, wherein, when laser and
When fluorescence is irradiated to colour filter 154, colour filter 154 can go out the laser of target wave band and fluorescent reflection, non-targeted wave band
Laser and Fluoroscopic go out, and then to transmission-type fluorescent wheel 14 transmit laser and fluorescence colour filter.
In a kind of application scenarios, when being provided with yellow fluorescence transmission area 1422 on transmission-type fluorescent wheel 14, colour filter
Feux rouges color filter can be set on 154 transparency carrier, when the yellow fluorescence that transmission-type fluorescent wheel 14 excites is irradiated to colour filter
During 154 feux rouges color filter, red fluorescence can be produced, and filter out yellow fluorescence.
Certainly, in specific implementation process, colour filter 154 can be the colour filter of driving rotation, with transmission-type fluorescent wheel
14 is corresponding, can set the color filter of multiple target wave bands respectively along the circumferencial direction of colour filter 154.
In a kind of application scenarios, when transmission-type fluorescent wheel 14 be transmitted to focus pack side light include blue laser,
When green fluorescence and yellow fluorescence, colour filter 154 can set blue light color filter, green glow color filter and feux rouges color filter respectively,
Colour filter 154 and the synchronous axial system of transmission-type fluorescent wheel 14, the blue laser for transmiting transmission-type fluorescent wheel 14 are irradiated to blue light filter
On color film, green fluorescence is irradiated on green glow color filter, yellow fluorescence is irradiated on feux rouges color filter.When transmission-type fluorescent wheel 14
The blue laser of transmission is irradiated on the blue light color filter of colour filter 154, and blue light color filter can carry out colour filter to blue laser,
Blue laser after colour filter is reflexed in the second lens group 152；The green fluorescence that transmission-type fluorescent wheel 14 transmits is irradiated to colour filter
On the green glow color filter of piece 154, green glow color filter can carry out colour filter to green fluorescence, and the green fluorescence after colour filter reflexes to the
In two lens groups 152；The yellow fluorescence that transmission-type fluorescent wheel 14 transmits is irradiated on the feux rouges color filter of colour filter 154, feux rouges
Color filter can produce red fluorescence and filter out yellow fluorescence, and red fluorescence is reflexed in the second lens group 152.
In specific implementation process, blue color film and green color film can be target wave band reflectivity more than 99%
High-reflecting film, red color filter film can be incident side coated red fluorescent material on high-reflecting film that red band reflectivity is more than 99%
Colour filter membrane structure.
Further, the angle of the laser beam of the lens group 151 of colour filter 154 and first transmission can be 45 °, to laser
While carrying out colour filter with fluorescence, the laser and the light path of fluorescence that can also transmit the first lens group 151 turn to 90 °, make to show
While showing that the laser of chip acquisition and fluorescence purity improve, moreover it is possible to reduce the projection that the LASER Light Source and ray machine etc. combine composition
The volume of display device.
Laser and fluorescent reflection after colour filter give the second lens group 152, and the second lens group 152 can be by after the colour filter of reception
Laser and fluorescent foci on display chip.
The something in common of the embodiment of the present invention and embodiment one, refer to embodiment one, will not be repeated here.
LASER Light Source provided in an embodiment of the present invention, by setting inclined colour filter in focus pack, it can not only make
The laser and fluorescence purity that display chip obtains improve, moreover it is possible to which the laser and the light path of fluorescence for transmiting transmission-type fluorescent wheel turn
To, reduce the LASER Light Source and ray machine etc. combine composition projection display apparatus volume.
Example IV
LASER Light Source provided in an embodiment of the present invention, as shown in fig. 7, being with the difference of embodiment one, the laser
The focus pack 15 of light source includes the first lens group 151, the second lens group 152, and is arranged on the first lens group 151 and second
Filter wheel 8 between lens group 152, wherein,
The laser and fluorescent foci that first lens group 151 can transmit transmission-type fluorescent wheel 14 are on filter wheel 8.
Filter wheel 8 is transmitted to the second lens group after being used for the laser after the first lens group 151 is focused on and fluorescence colour filter
152.In specific implementation process, filter wheel 8 is the transparency carrier for being provided with color filter, and multiple ripples can be set on filter wheel 8
The color filter of section, when laser and fluorescence are irradiated to filter wheel 8, the laser and fluorescence of target wave band can transmit from color filter
Onto the second lens group 152, and the laser and fluorescence beyond target wave band reflect or absorbed from color filter, can not reach second
Lens group 152, so as to play the laser and fluorescence color filtration after being focused on to the first lens group 152.Wherein, the color filter pair
Wave band beyond target wave band plays high minus effect or absorption, and the film of antireflective effect is played to target wave band.For example, green glow
Target wave band is 470nm~590nm, and the green glow color filter on filter wheel 8 allows the green glow in the range of 470nm~590nm to lead to
Cross, and the green glow beyond 470nm~590nm wave bands is reflected or absorbed.
In embodiments of the present invention, 8 rotation driven of filter wheel, its central shaft rotated can be with transmission-type fluorescent wheel 14
The central shaft of rotation point-blank, filter wheel 8 and the synchronous axial system of transmission-type fluorescent wheel 14.Specifically, with transmission-type fluorescence
Take turns 14 corresponding, along the circumferencial direction of filter wheel 8, the color filter of multiple wave bands can be set respectively.
In a kind of application scenarios, when transmission-type fluorescent wheel 14 be transmitted to focus pack side light include blue laser,
When green fluorescence and yellow fluorescence, along the circumferencial direction of filter wheel 8, blue light color filter, green glow color filter and feux rouges can be set
Color filter, filter wheel 8 and the synchronous axial system of transmission-type fluorescent wheel 14, the blue laser that transmission-type fluorescent wheel 14 transmits are irradiated to blue light
On color filter, green fluorescence is irradiated on green glow color filter, yellow fluorescence is irradiated on feux rouges color filter.Transmission-type fluorescent wheel 14
When the blue laser of transmission is irradiated on the blue light color filter of filter wheel 8, blue light color filter can carry out colour filter to blue laser,
Blue laser after colour filter is transmitted in the second lens group 152；The green fluorescence that transmission-type fluorescent wheel 14 transmits is irradiated to colour filter
When on the green glow color filter of wheel 8, green glow color filter can carry out colour filter to green fluorescence, and the blue laser after colour filter is transmitted to the
In two lens groups 152；When the yellow fluorescence that transmission-type fluorescent wheel 14 transmits is irradiated on the gold-tinted color filter of filter wheel 8, gold-tinted
Color filter can produce red fluorescence and filter out yellow fluorescence, and red fluorescence is transmitted in the second lens group 152.
To in the second lens group 152, the second lens group 152 will receive laser and Fluoroscopic after 8 colour filters of filtered wheel
Laser and fluorescent foci on display chip.
The something in common of the embodiment of the present invention and embodiment one, refer to embodiment one, will not be repeated here.
LASER Light Source provided in an embodiment of the present invention, by between the first lens group and the second lens group of focus pack
Filter wheel is set, laser and the raising of fluorescence purity that display chip obtains can be made, simultaneously as filter wheel and transmission-type fluorescence
The rotary middle spindle of wheel is on same straight line and synchronous axial system, and therefore, filter wheel and transmission-type fluorescent wheel can use same
Drive device, the system architecture of the LASER Light Source can be reduced, reduce the volume of the light source, be advantageous to the small of LASER Light Source
Type.
Embodiment five
Based on above-mentioned technical proposal, the embodiment of the present invention additionally provides a kind of projection display apparatus, as shown in figure 8, including
LASER Light Source 1001, ray machine 1002, camera lens 13 and projection screen 1004.
The LASER Light Source 1001 is mixed to form white light using any LASER Light Source in embodiment one to example IV, light source
And timing export laser and fluorescence, the laser and fluorescence of output enter ray machine 1002, using the ray machine that dmd chip forms as
Example, dmd chip can be regarded as to be made up of the multiple tiny mirrors of multipole, and these micro-reflectors can be under electric current driving at certain angle
Inverted in the range of degree, to adjust the light quantity into camera lens, so that different colors is presented on projection screen.LASER Light Source
The modulation of laser and fluorescence through dmd chip of output, through repeatedly refraction, converge to up to camera lens 13, finally in projection screen 1004
Upper imaging.
Certainly, in specific implementation process, ray machine 1002 can also use the ray machine that LCD chip or LCOS chip form,
User can choose any of the above-described ray machine according to actual conditions, be not specifically limited herein.
Projection display apparatus provided in an embodiment of the present invention, LASER Light Source use and homogenize component, transmission-type fluorescence wheel construction
Design, the laser that laser is sent is transmitted through homogenized laser and fluorescence is directly provided after transmission-type fluorescent wheel, with prior art
In also need to compare with the design that could provide laser after dichroscope by relaying loop, light channel structure is more simple；The opposing party
Face, component is homogenized between laser and transmission-type fluorescent wheel by being arranged on, the laser for being emitted onto transmission-type fluorescent wheel is even
Change, so that transmission-type fluorescent wheel is emitted homogenized laser and fluorescence, display chip can be directly entered, substituted in the prior art
Diffusion sheet, two devices of component are homogenized, further simplify light path.Projection display apparatus provided in an embodiment of the present invention relative to
For prior art, light channel structure is simpler, meanwhile, the loss of laser greatly reduces, and can greatly improve the utilization rate of laser, together
When, also provide condition for the miniaturization of projection display apparatus.
In this specification between each embodiment identical similar part mutually referring to.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice the disclosure invented here
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including undocumented common knowledges in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
Invention described above embodiment is not intended to limit the scope of the present invention..
Claims (9)
- A kind of 1. LASER Light Source, it is characterised in that including laser, transmission-type fluorescent wheel and be arranged on the laser with thoroughly Penetrate between formula fluorescent wheel and homogenize component, wherein, the transmission-type fluorescent wheel is provided with laser transmission area and Fluoroscopic area.
- 2. LASER Light Source as claimed in claim 1, it is characterised in that also include being arranged on and described homogenize component and transmission-type is glimmering Collimator assembly between halo, and it is arranged on the focus pack of the transmission-type fluorescent wheel light direction, the focus pack Light direction and display chip to enter light direction identical.
- 3. LASER Light Source as claimed in claim 2, it is characterised in that the component that homogenizes includes fly's-eye lens or homogenizes light Rod.
- 4. LASER Light Source as claimed in claim 3, it is characterised in that single mirror length-width ratio N of the fly's-eye lens shows with described Show that the length-width ratio M of chip meets：0.9M<N<M.
- 5. LASER Light Source as claimed in claim 3, it is characterised in that the focus pack is saturating including the first lens group and second Microscope group, wherein, it is tiltedly installed with speculum between first lens group and the second lens group.
- 6. LASER Light Source as claimed in claim 3, it is characterised in that the focus pack is saturating including the first lens group and second Microscope group, wherein, it is tiltedly installed with colour filter between first lens group and the second lens group.
- 7. LASER Light Source as claimed in claim 3, it is characterised in that the focus pack is saturating including the first lens group and second Microscope group, wherein, it is provided with filter wheel between first lens group and the second lens group.
- 8. the LASER Light Source as described in claim 5 to 7 is any, it is characterised in that single mirror size of the fly's-eye lens and institute State display chip size satisfaction：Wherein,F1 is the focal length of the fly's-eye lens, and f2 is Jiao of the collimator assembly Away from the focal length that, f3 is first lens group, f4 is the focal length of second lens group, and H is the length of the display chip, L For the width of the display chip.
- 9. a kind of projection display apparatus, including LASER Light Source, ray machine, camera lens and projection screen, the LASER Light Source are described Ray machine provides illumination, and is projected to the projection screen display image by the camera lens, it is characterised in that the LASER Light Source is Any described LASER Light Sources of claim 1-8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710934114.7A CN107479313A (en) | 2017-10-10 | 2017-10-10 | A kind of LASER Light Source and projection display apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710934114.7A CN107479313A (en) | 2017-10-10 | 2017-10-10 | A kind of LASER Light Source and projection display apparatus |
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| CN107479313A true CN107479313A (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710934114.7A Pending CN107479313A (en) | 2017-10-10 | 2017-10-10 | A kind of LASER Light Source and projection display apparatus |
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Cited By (6)
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| CN108234976A (en) * | 2017-12-29 | 2018-06-29 | 花花猫显示科技有限公司 | Support the DLP Projection Display drive systems of a variety of laser light sources |
| CN110244507A (en) * | 2019-07-29 | 2019-09-17 | 北京镭创高科光电科技有限公司 | A kind of laser light source and optical projection system |
| CN110568705A (en) * | 2019-08-20 | 2019-12-13 | 苏州佳世达光电有限公司 | light source module and projection device suitable for same |
| CN113623611A (en) * | 2021-07-19 | 2021-11-09 | 山西汉威激光科技股份有限公司 | Intelligent large light source light path structure for automobile tail projection |
| CN113687570A (en) * | 2021-07-30 | 2021-11-23 | 深圳光峰科技股份有限公司 | Laser light source system and laser projection apparatus |
| US11841612B2 (en) | 2020-11-30 | 2023-12-12 | Coretronic Corporation | Illumination system and projection device |
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| CN113623611A (en) * | 2021-07-19 | 2021-11-09 | 山西汉威激光科技股份有限公司 | Intelligent large light source light path structure for automobile tail projection |
| CN113687570A (en) * | 2021-07-30 | 2021-11-23 | 深圳光峰科技股份有限公司 | Laser light source system and laser projection apparatus |
| CN113687570B (en) * | 2021-07-30 | 2023-09-08 | 深圳光峰科技股份有限公司 | Laser light source system and laser projection apparatus |
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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant after: Hisense Video Technology Co.,Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant before: HISENSE ELECTRIC Co.,Ltd. |
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