CN206863466U - 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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- CN206863466U CN206863466U CN201720703135.3U CN201720703135U CN206863466U CN 206863466 U CN206863466 U CN 206863466U CN 201720703135 U CN201720703135 U CN 201720703135U CN 206863466 U CN206863466 U CN 206863466U
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Abstract
It the utility model is related to a kind of light-source system and optical projection system,Light-source system includes luminescence unit,Light path switch unit,Wavelength conversion unit,First,Second spectrophotometric unit,Wherein,The luminescence unit transmitting blue laser beams or red and blue laser beams,The light beam that luminescence unit is launched is switched into one first light path or one second light path by light path switch unit,First spectrophotometric unit is arranged at 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,And for the light beam being emitted after wavelength convert to be guided to the second spectrophotometric unit,Second spectrophotometric unit is used for sequential after the light beam of incidence is divided and is emitted,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 less than height of the wavelength conversion unit in the dimension direction.The efficiency of light energy utilization of the light-source system is high and compact-sized.
Description
Technical field
It the utility model is related to field of projection display, more particularly to the throwing of a kind of light-source system and the application light-source system
Shadow system.
Background technology
The current optical projection system using one chip spatial light modulator is typically irradiated to the color of rotation using excitation source
To form the red, green, blue three primary colours light of sequential outgoing on wheel, and the red, green, blue three primary colours light that sequential is emitted is projected to space
It is modulated on optical modulator, the monochromatic light image for modulating to obtain is quick on screen alternately to be switched, and then regarding using human eye
Feel that the monochromatic light image blend of each sequential is formed coloured image by residual effect together.Red, green, blue three is coated by colour wheel
For the fluorescent material of kind color to obtain red, green, blue three primary colours light, still, the light conversion efficiency of red fluorescence powder is relatively low, causes to use
The brightness of image of the optical projection system red light portion of one chip space light modulation is relatively low, and effect is shown so as to have influence on overall image
Fruit.Because the brightness of the spatial light modulator of one chip is relatively low, at present, the engineering more than lumen of luminous flux 20000 is projected all by 3
Finned space optical modulator is realized, so bulky, it is necessary to projection lens using the optical projection system of 3 finned space optical modulators
Back focal length it is longer, the requirement to camera lens is high, expensive.
Utility model content
In view of above-mentioned condition, the utility model provide a kind of high and compact-sized light-source system of efficiency of light energy utilization and throwing
Shadow system.
On the one hand, the utility model provides a kind of light-source system, including luminescence unit, light path switch unit, first point
Light unit, wavelength conversion unit and the second spectrophotometric unit, wherein, luminescence unit transmitting blue laser beams or it is red with
Blue laser beams, the light path switch unit are used to the light beam that the luminescence unit is launched switching into one first light path
Footpath or one second light path, first spectrophotometric unit are arranged at the first light path and the second light path end, for will be from
The incident light beam of one light path and the second light path, is separately directed to wavelength conversion unit or the second spectrophotometric unit, and described first
Spectrophotometric unit is additionally operable to wavelength conversion unit carrying out the light beam that is emitted after wavelength convert to guide to the second spectrophotometric unit, and described the
Two spectrophotometric units are used for sequential after the light beam of incidence is divided and are emitted, and second light path is from the wavelength conversion unit
By the way that height of second light path at least one dimension direction is less than the wavelength between first spectrophotometric unit
Height of the converting unit in the dimension direction.
On the other hand, the utility model also provides a kind of optical projection system, and the optical projection system includes above-mentioned light-source system
And a spatial light modulator, the modular spatial light modulator are used for the beam modulation that the light-source system is emitted into taking
Image light with image information.
The advantages of light-source system and optical projection system that the utility model embodiment provides, is：Because light-source system utilizes Huang
Light carrys out isolated feux rouges, and due to integrally-built arrangement, improves the efficiency of light energy utilization；On the other hand, in some embodiment party
In formula, a light path is multiplexed to a dimension direction of fluorescence colour wheel by the suitable arrangement of optical element, make light-source system and
Using the more compact structure of the optical projection system of the light-source system, and reduce the difficulty of light-source system structure design.
Brief description of the drawings
Fig. 1 is the block diagram of the optical projection system of the utility model the first embodiment.
Fig. 2 is the first specific Organization Chart 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 Organization Chart 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 Organization Chart 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 utility model.
Figure 10 is the three-dimensional view of the first specific Organization Chart 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.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.Term as used herein " and/or " include one or more related institutes
The arbitrary and all combination of list of items.
Refer to shown in Fig. 1, be the block diagram of the first embodiment of the utility model optical projection system.The throwing
Shadow 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 space
Optical modulator 3 is modulated into the image light for carrying image information, then is projected to a screen (not shown) through projection lens 4 and forms image
It is shown to user.
In the present embodiment, the light-source system 2 includes luminescence unit 20, light path switch unit 21, first is divided
Unit 22, the spectrophotometric unit 24 of wavelength conversion unit 23 and second.The light path switch unit 21 launches luminescence unit 20
Light beam switch into the first light path L1 or the second light path L2, the first spectrophotometric unit 22 is arranged at the first light path L1 and
Two light path L2 ends, the first spectrophotometric unit 22 is reached by the first light path L1, the second light path L2 light beam being emitted, 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.Or 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, the light beam after wavelength convert is carried out 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 being divided by the second spectrophotometric unit 24
Light beam, the light beam sequential is emitted in the optical channel 25 after being arranged at second spectrophotometric unit 24, via optical channel 25
Sequential is emitted to spatial light modulator 3.
Refer to shown in Fig. 2, be the specific Organization Chart of the first embodiment of light-source system 2, in the present embodiment,
The luminescence unit 20 is the blue laser module 20a of a transmitting blue laser, and the light path switch unit 21 is that a light splitting is taken turns
21a, first spectrophotometric unit 22 are an anti-blue yellow diaphragm 22a thoroughly, and the wavelength conversion unit 23 is a fluorescence colour wheel 23a,
More specifically, being a yellow fluorescence colour wheel, second spectrophotometric unit 24 repaiies colour wheel 24a for one.It the following specifically describes all parts
Structure and function.
The blue laser that the light splitting wheel 21a is launched by transmission or reflection indigo plant laser module 20a is so that blue laser
Into the first light path L1a or enter the second light path L2a.Light splitting wheel 21a rotates about axle by drive device 210a drivings
Rotation, is referred to shown in Fig. 3, and light splitting wheel 21a is divided into regional transmission 211a and reflector space 212a along its direction of rotation, is being divided
When taking turns 21a rotations, regional transmission 211a and reflector space 211b cuts the propagation path of blue laser in turn, so that blueness swashs
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 reflector space 212a accountings are small compared with regional transmission 211a.
In the present embodiment, a relay system 26 is additionally provided with the first light path L1a, wherein, the relay system
26 hot spot relay systems 261, scattering sheet 262, optical tunnel 263 and the convergences for including setting gradually along the first light path L1a are saturating
Mirror 264.The hot spot relay system 261 is used to the blue laser light spot focus for entering the first light path L1a relaying to even light
The entrance of rod 263, in the present embodiment, influence of the spoke area to launching spot on wheel 21a is divided to reduce, is incident to light splitting
Wheel 21a laser facula is controlled as far as possible small.Wherein, the spoke area refer to the light splitting upper regional transmission 211a of wheel 21a with instead
The intersection and intersection two side areas penetrated between the 212a of region, blue laser are passing through intersection and intersection two side areas
When, its hot spot can be covered with regional transmission 211a and reflector space 212a simultaneously, so that a hot spot part is transmitted another part
Reflected, may be colour mixture light so as to cause to repair the light beam being emitted on colour wheel 24a.The optical tunnel 263 is used for the light of incidence
Shu Jinhang is homogenized, and the optical tunnel 263 can be an even smooth square rod.The scattering sheet 262 is arranged at the entrance of optical tunnel 263
Place, for the light beam that will enter optical tunnel 263 to be diffused, further to improve the uniform of the shoot laser of optical tunnel 263
Change.The convergent lens 264, which is used to assemble the blue laser being emitted from optical tunnel 263, relays to the anti-blue yellow diaphragm thoroughly
22a.The anti-blue yellow diaphragm 22a thoroughly includes opposite the first face 221a and the second face 222a, incident by the first light path L1a
Blue laser beams are conducted to anti-blue yellow diaphragm 22a thoroughly the first face 221a, and by the first face of the anti-blue yellow diaphragm 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 produces gold-tinted.
In the present embodiment, guidance system 27 is additionally provided with the second light path L2a, the guidance system 27 is used for will
The blue laser beams that 21a reflections are taken turns by the light splitting are guided to the second face 222a of the anti-blue yellow diaphragm 22a thoroughly.It is described to lead
Be a mirror system in the present embodiment to system 27, successively including the first reflective mirror 271, the second reflective mirror 272 and
3rd reflective mirror 273.First reflective mirror 271 is substantially set towards the light splitting wheel 21a, with the light splitting wheel 21a in parallel
Put, the 3rd reflective mirror 273 towards the anti-blue yellow diaphragm 22a second face 222a thoroughly, with the second face 222a substantially
It is set in parallel, second reflective mirror 272 is arranged between the reflective mirror 273 of the first reflective mirror 271 and the 3rd, and described
First reflective mirror 271, the substantially vertical setting of the 3rd reflective mirror 273, from the blue laser beams quilt of the light splitting wheel 21a reflections
First reflective mirror 271 is reflexed on the second reflective mirror 272, then is reflexed to by the second reflective mirror 272 on the 3rd reflective mirror 273, most
Anti- blue yellow diaphragm 22a thoroughly the second face 222a is reflexed to by the 3rd reflective mirror 273 eventually.
In the present embodiment, the light splitting wheel 21a and anti-blue yellow diaphragm 22a thoroughly is arranged substantially in parallel, the first light
Path L1a and fluorescence colour wheel 23a be located on different dimensions, are so to avoid fluorescence colour wheel 23a and be arranged at fluorescence colour wheel 23a
Optical instrument between anti-blue yellow diaphragm 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 be arranged at fluorescence colour wheel 23a and anti-blue yellow diaphragm 22a thoroughly
Between optical instrument set, i.e., described fluorescence colour wheel 23a and be arranged at fluorescence colour wheel 23a and anti-blue yellow diaphragm 22a thoroughly it
Between optical instrument be arranged on the inside of the light path L2a of guidance system 27 and second.
In the present embodiment, fluorescence colour wheel 23a rotates about axle rotation by drive device 230a drivings.In iridescent
During taking turns 23a rotations, fluorescence colour wheel is projected to by the anti-blue yellow diaphragm 22a thoroughly blue lasers for reflexing to fluorescence colour wheel 23a
23a diverse location, so as to improve fluorescence colour wheel 23a efficiency, in addition, further to improve fluorescence colour wheel 23a efficiency, this
A collection system 27 is also provided with to being incident to fluorescence between fluorescence colour wheel 23a and anti-blue yellow diaphragm 22a thoroughly in embodiment
It is a lens group in the present embodiment that colour wheel 23a light beam, which carries out shaping and homogenization, the collection system 27,.
Anti- blue yellow diaphragm 22a thoroughly blue laser beams are reached by the of anti-blue yellow diaphragm 22a thoroughly by the first light path L1a
Simultaneously 221a reflexes to the fluorescence colour wheel 23a, excites the fluorescence colour wheel 23a to produce gold-tinted, the gold-tinted is through the lens
Group 27 is back to the anti-blue yellow diaphragm 22a thoroughly, and is transmitted through via anti-blue yellow diaphragm 22a thoroughly and described repaiies colour wheel 24a.The opposing party
Face, anti-blue yellow diaphragm 22a thoroughly blue laser beams are reached by the of the anti-blue yellow diaphragm 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 light path are emitted to by light splitting wheel 21a sequential
In footpath L2a blue laser beams, wherein a branch of be converted into gold-tinted, another beam is still blue light, and two light beams sequential is incident to
Described to repair colour wheel 24a, the light beam for repairing the final sequential outgoing multi beam setpoint colors of colour wheel 24a is into spatial light modulator 3.
The colour wheel 24a that repaiies rotates about axle rotation by drive device 240a drivings, in the present embodiment, repaiies colour wheel
24a and light splitting wheel 21a synchronous axial systems.Refer to shown in Fig. 4, repair colour wheel 24a and be divided into multiple coloured light areas along its direction of rotation, 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 regional transmission 211a on domain Y light splitting wheel 21a corresponding with green wavelength G, blue region B
Domain 212a.That is, when light splitting wheel 21a rotations make blue laser pass through regional transmission 211a, colour wheel 24a synchronous rotaries are repaiied
Gold-tinted caused by fluorescence colour wheel 23a is set to reach red light region R, yellow region Y and green wavelength G, the red light region R generals successively
Gold-tinted is divided into feux rouges and green glow, and wherein green glow is reflected, and feux rouges is transmitted into the optical channel 25, the yellow region
Y transmission gold-tinteds are made it into the optical channel 25, and gold-tinted is divided into feux rouges and green glow, wherein feux rouges quilt by the green wavelength G
Reflect away, green glow is transmitted into the optical channel 25.Make blue laser anti-by reflector space 212a in light splitting wheel 21a rotations
When penetrating, repairing colour wheel 24a synchronous rotaries makes blue laser pass through blue region B, and blue region B transmission blue lights make it into the light
In passage 25.In the present embodiment, scattering sheet (not shown) is provided with blue region B.The scattering sheet is used for incidence
The angle of laser is adjusted, and the angle of outgoing blue laser is evenly changed, and on the other hand, scattering sheet is also entered to incident laser
Row eliminating coherence.It is appreciated that in another embodiment, scattering sheet also can be set on the yellow region Y.
In the above-described embodiment, the anti-blue yellow diaphragm 22a thoroughly and light splitting wheel 21a is arranged substantially in parallel, and is so existed
In other embodiment, the anti-blue yellow diaphragm 22a thoroughly takes turns 21a with the light splitting can also be generally perpendicular to each other setting, by being divided
The blue laser of wheel 21a transmissions is reflexed to by the anti-blue yellow diaphragm 22a thoroughly and repaiied on colour wheel 24a, and by light splitting wheel 21a reflections
Blue laser reflexes to fluorescence colour wheel 23a by the anti-blue yellow diaphragm 22a thoroughly.In addition, other optical components can also carry out phase
It should adjust, for example, the relay system 26 can be arranged on the second light path L2a, positioned at guidance system 27 and anti-blue Huang thoroughly
Between diaphragm 22a.In addition, regional transmission 211a and reflector space 212a ratio also can respective 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
Rotate, 21a can not also be taken turns with light splitting, repaiies colour wheel 24a synchronous axial systems.
It is appreciated that in other embodiments, on light splitting wheel 21a many places regional transmission 211a and many places can be set anti-
Penetrate region 212a, regional transmission 211a and reflector space 212a interval setting.
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.
Refer to shown in Fig. 5, be the specific Organization Chart 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 sequential transmitting red laser beam and blue laser including
Launch blue the laser module 200b and transmitting red laser beam of blue laser red laser module 201b, the light path switch unit
21 be that 21b is taken turns in a light splitting, and first spectrophotometric unit 22 is an anti-blue yellow diaphragm 22b thoroughly, and the wavelength conversion unit 23 is one
Fluorescence colour wheel 23b, more specifically, being a yellow fluorescence colour wheel, second spectrophotometric unit 24 repaiies colour wheel 24b for one.
The light splitting wheel 21b includes a regional transmission (not shown) and a reflector space (not shown), the regional transmission
Sequential transmits the red laser and blue laser of the combined light source 20b transmittings, red laser is entered with blue laser sequential
First light path L1b, the reflector space reflect the blue laser of the combined light source 20b transmittings, blue laser is entered the
Two light path L2b.
In the sequential of combined light source 20b transmitting red laser beams, light splitting wheel 21b goes to the forward part of regional transmission, red
Laser reaches anti-blue yellow diaphragm 22b thoroughly the first face 221b via the first light path L1b, and by the anti-blue yellow diaphragm 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 diaphragm 22b thoroughly
The incident region of red laser is corresponded on 221b and is provided with an anti-red diaphragm, 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 diaphragm 22b thoroughly after photochromic wheel 23b eliminating coherences, then is transmitted through by anti-blue yellow diaphragm 22b thoroughly and described repaiies colour wheel
24b。
In the sequential of combined light source 20b transmitting blue lasers, the light splitting wheel 21 goes to the rear part of transparent region simultaneously
Continue to go to reflector space, therefore, the blue laser that combined light source 20b launches in forward part sequential is via the first light path
L1b reaches anti-blue yellow diaphragm 22b thoroughly the first face, and is reflexed to by the first face 221b of the anti-blue yellow diaphragm 22b thoroughly described
Fluorescence colour wheel 23b.The blue laser that combined light source 20b launches in rear portion timesharing sequence reaches anti-blue via the second light path L2b
Saturating yellow diaphragm 22b the second face 222b, reflexed to by the second face 222b of the anti-blue yellow diaphragm 22b thoroughly and described repair colour wheel 24b.
Referring to shown in Fig. 6, the colour wheel 24b that repaiies includes a red light region R, a green wavelength G and a blue region B,
It is described repair colour wheel 24b rotations and red light region R, green wavelength G and blue region B is cut anti-blue thoroughly yellow diaphragm 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 sequential of combined light source 20b transmitting red laser beams
The light path of the anti-blue yellow diaphragm 22b outgoing beams thoroughly of red light region R incisions, the feux rouges transmitted from anti-blue thoroughly yellow diaphragm 22b is by institute
State red light region R and be transmitted into the optical channel 25.It is described in the forward part sequential of combined light source 20b transmitting blue lasers
The light path of the colour wheel 24b anti-blue yellow diaphragm 22b outgoing beams thoroughly of green wavelength G incisions is repaiied, from anti-blue thoroughly yellow diaphragm 22b transmissions
Gold-tinted feux rouges and green glow are divided into by the green wavelength G, wherein feux rouges is reflected, and green glow is transmitted into the optical channel
25.In the rear portion timesharing sequence of combined light source 20b transmitting blue lasers, the anti-indigo plant of blue region B incisions for repairing colour wheel 24b is thoroughly
The light path of yellow diaphragm 22b outgoing beams, it is transmitted into from the blue light of anti-blue thoroughly yellow diaphragm 22b reflections by the blue region B
The optical channel 25.
In the present embodiment, it is identical with the first embodiment, the second light path L2b and fluorescence colour wheel 23b difference position
In in two intersecting two dimensional surfaces, the second light path L2b is also around the fluorescence colour wheel 23b and is arranged at fluorescence colour wheel
Optical instrument between 23b and anti-blue yellow diaphragm 22b thoroughly is set.I.e. described fluorescence colour wheel 23b and it is arranged at fluorescence colour wheel 23b
Optical instrument between anti-blue yellow diaphragm 22b thoroughly is arranged on the inside of the second light path L2b.
In the present embodiment, unlike the first embodiment, in red light portion, as a result of propagation more
Small red laser instead of blue laser to obtain the feux rouges needed for imaging, make the more efficient of red light portion.
It is appreciated that in another embodiment, during repairing colour wheel 24b persistently rotates, the combined light source
20b can launch blue laser always, and only be the repairing colour wheel 24b anti-blue yellow diaphragm 22b outgoing beams thoroughly of red light region R incisions
Light path when, combined light source 20b opens transmitting red laser beam, therefore, repairing colour wheel 24b red light region R incision it is anti-it is blue thoroughly
After the light path of yellow diaphragm 22b outgoing beams, on the one hand, blue laser reaches fluorescence colour wheel via anti-blue thoroughly red diaphragm 22b
23b, excites fluorescence colour wheel 23b to produce gold-tinted, and gold-tinted is transmitted through the red light region for repairing colour wheel 24b via anti-blue yellow diaphragm 22b thoroughly
R, feux rouges and green glow being divided into by red light region R, wherein feux rouges is transmitted into optical channel 25, and green glow is reflected, on the other hand,
Red laser reaches fluorescence colour wheel 23b via anti-blue thoroughly yellow diaphragm 22b, passes through after eliminating coherence and is transmitted by anti-blue thoroughly yellow diaphragm 22b
To repairing colour wheel 24b red light region R, and optical channel 25 is further transmitted into by red light region R, so as to being separated by gold-tinted
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, its can with first embodiment
Corresponding construction is identical, makes appropriate change in the first embodiment on the basis of corresponding construction that also can be, for example, in this embodiment party
In formula, relay system 26b is provided with the first light path L1b, hot spot relay system is provided with relay system 26b
261b, scattering sheet 262b, optical tunnel 263b and convergent lens 264b, wherein anti-blue yellow diaphragm 22b thoroughly is arranged at convergent lens
264b focal position, the anti-blue region for needing the anti-red diaphragm of setting on yellow diaphragm 22b thoroughly can so minimized, is more beneficial for indigo plant
Gold-tinted caused by color LASER Excited Fluorescence colour wheel 23b and/or the feux rouges reflected by fluorescence colour wheel 23b pass through anti-blue yellow diaphragm thoroughly
22b reaches the red light region for repairing colour wheel 24b, further lifts the efficiency of red light portion.
Refer to shown in Fig. 7 and Fig. 8, be the specific Organization Chart 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 of transmitting blue laser
Group 200c and transmitting red laser beam red laser module 201c, 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 diaphragm 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 diaphragm 22c, fluorescent wheel 23c and the work for repairing colour wheel 24c thoroughly
Making principle can be substantially identical with the operation principle of the corresponding component in second embodiment, the combined light source 20c can with when
Sequence transmitting red laser beam and blue laser, or, during repairing colour wheel 24c persistently rotates, combined light source 20c persistently launches
Blue laser, when repairing colour wheel 24c red light region enters anti-blue yellow diaphragm 22c emergent light path thoroughly, launch red and swash
Light, therefore not to repeat here.
In the present embodiment, it is with second of maximum difference of embodiment, the second light path in present embodiment
Footpath L2c is located in two parallel two dimensional surfaces respectively with fluorescence colour wheel 23c, so that the second light path in present embodiment
L2c may be disposed between fluorescence colour wheel 23c and anti-blue yellow diaphragm 22c thoroughly, and the second light path L2c is blue from fluorescence colour wheel 23c and instead
By the way that and height of the second light path L2c footpaths at least one dimension direction exists less than fluorescence colour wheel 23c between saturating yellow diaphragm 22c
The height in the dimension direction, that is to say, that fluorescence colour wheel 23c short transverse is re-used, so as to reduce the body of light-source system 2
Product, reduce the structure design difficulty of light-source system 2.
Refer to shown in Fig. 9, be the block diagram of second of embodiment of the utility model optical projection system.The throwing
Shadow 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 space
Optical modulator 6 is modulated into the image light for carrying image information, then is projected to a screen (not shown) through projection lens 7, forms figure
As being shown to user.
In the present embodiment, the light-source system 5 includes luminescence unit 50, light path switch unit 51, first is divided
Unit 52, the spectrophotometric unit 54 of wavelength conversion unit 53 and second.The light path switch unit 51 launches 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
Guide to the spectrophotometric unit 54 of wavelength conversion unit 53 or second.The light beam that the luminescence unit 50 is launched is also via the 3rd light path
L5 reaches the first spectrophotometric unit 52, is guided by first spectrophotometric unit 52 to wavelength conversion unit 53.Via wavelength convert list
Light beam after the progress wavelength convert of member 53 is directed at the second spectrophotometric unit 54 via the first spectrophotometric unit 52 again.Light beam is by second
After the light splitting of spectrophotometric unit 54, the light beam of a variety of setpoint colors is formed, the light beam sequential, which is emitted to, is arranged at described second point
In optical channel 55 after light unit 54, spatial light modulator 6 is emitted to via the sequential of optical channel 55.
Refer to shown in Figure 10-12, be a kind of specific Organization Chart 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
Group 500a and a transmitting red laser beam red laser module 501a.The blue laser of the blue laser module 500a transmittings is via light
The sequential of path switching unit 51 enters the first light path L3 and the second light path L4, the red of the red laser module 501a transmittings
Laser enters the 3rd 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 diaphragm 52a thoroughly, the wavelength conversion unit 53 is a fluorescence colour wheel 53a, more specifically, be a yellow fluorescence colour wheel, it is described
Second spectrophotometric unit 54 repaiies colour wheel 54a for one.
The combined light source 50a, light splitting take turns 51a, anti-blue yellow diaphragm 52a, fluorescent wheel 53a thoroughly and repair colour wheel 54a structures
Complete description is no longer done with operation principle and the same or analogous place of other embodiment described above, and is only mainly introduced
With the difference of embodiment of above.
The main difference of present embodiment and the third embodiment of light-source system 2 is, the 3rd of light-source system 2 the
In kind embodiment, the red laser of red laser module 201c transmittings enters the first light path L1c via light splitting wheel 21c, so exists
In present embodiment, the red laser of red laser module 501a transmittings enters the first light path L3 without light splitting wheel 51a, but directly
Tap into the 3rd light path L5.Relay system 56 is provided with 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 with 3rd light path L5, the red laser is through overconvergence
Enter anti-blue yellow diaphragm 52a thoroughly after lens 57 and anti-blue red diaphragm 58 thoroughly, fluorescence colour wheel is reflexed to by anti-blue yellow diaphragm 52a thoroughly
53a.Because red laser is not required to the even light by optical tunnel, therefore it is more beneficial for reducing the etendue of red light portion, has
Beneficial to the efficiency for improving red light portion.In addition, red laser enters anti-blue yellow diaphragm 52a thoroughly after the focusing of convergent lens 57,
The anti-saturating yellow diaphragm 52a of indigo plant is arranged at the focal position of convergent lens 57, so as to make anti-indigo plant need setting anti-red on yellow diaphragm 52a thoroughly
The region of diaphragm minimizes, and is more beneficial for as caused by blue laser excites fluorescence colour wheel 53a gold-tinted and/or by fluorescence colour wheel
The feux rouges of 53a reflections reaches the red light region (not shown) for repairing colour wheel 54a by anti-blue thoroughly yellow diaphragm 52a, is further lifted red
The efficiency of light part.
A reflective mirror 59 is also provided with the first light path L3, the reflective mirror 59 is by by the indigo plant of relay system 56
On color laser reflection to anti-blue saturating red diaphragm 58, reflexed to via anti-blue red diaphragm 58 thoroughly on anti-blue saturating yellow diaphragm 52a, then via
Anti- blue yellow diaphragm thoroughly is reflexed on fluorescence colour wheel 53a, and so as to excite fluorescence colour wheel 53a to produce gold-tinted, caused gold-tinted passes through
Anti- blue thoroughly yellow diaphragm 52a reaches the green wavelength (not shown) for repairing colour wheel 54a.
Second light path L4 setting and the second light path in the 3rd embodiment of light-source system 2 in present embodiment
L1c setting is similar, i.e. the second light path L4 is arranged between fluorescence colour wheel 53a and anti-blue yellow diaphragm 52a thoroughly, the second light path
L4 is between fluorescence colour wheel 53a and anti-blue yellow diaphragm 52a thoroughly by the way that and the second light path L4 is in the height at least one dimension direction
Degree is less than height of the fluorescence colour wheel 53a in the dimension direction, that is to say, that and fluorescence colour wheel 53a short transverse is re-used, so as to
The volume of light-source system 5 is reduced, reduces the structure design difficulty of light-source system 5.
In summary, the light-source system and optical projection system that the utility model embodiment provides, because light-source system utilizes
Gold-tinted carrys out isolated feux rouges, and due to integrally-built arrangement, improves the projection system using one chip spatial light modulator
The efficiency of light energy utilization of system, so as to improve the display brightness of optical projection system；On the other hand, in some embodiments, light is passed through
One light path is multiplexed a dimension direction of fluorescence colour wheel by the suitable arrangement for learning element, makes light-source system and uses the light source system
The more compact structure of the optical projection system of system, and reduce the difficulty of light-source system structure design.
Embodiment of above is only unrestricted to illustrate the technical solution of the utility model, although preferably real with reference to more than
Mode is applied the utility model is described in detail, it will be understood by those within the art that, can be new to this practicality
The technical scheme of type is modified or equivalent substitution should not all depart from the spirit and scope of technical solutions of the utility model.
Claims (16)
1. a kind of light-source system, it is characterised in that turn including luminescence unit, light path switch unit, the first spectrophotometric unit, wavelength
Unit and the second spectrophotometric unit are changed, wherein, the luminescence unit transmitting blue laser beams or red and blue laser beams,
The light path switch unit is used to the light beam that the luminescence unit is launched switching into one first light path or one second light
Path, first spectrophotometric unit are arranged at the first light path and the second light path end, for will be from the first light path and
The incident light beam of two light paths is separately directed to wavelength conversion unit or the second spectrophotometric unit, and first spectrophotometric unit is additionally operable to
The light beam that wavelength conversion unit be emitted after wavelength convert is guided to the second spectrophotometric unit, second spectrophotometric unit and is used for
Sequential is emitted after the light beam of incidence is divided, and second light path is divided from the wavelength conversion unit and described first
By the way that height of second light path at least one dimension direction is less than the wavelength conversion unit in the dimension between unit
Spend the height in direction.
2. light-source system as claimed in claim 1, it is characterised in that it is single to be also arranged at second light splitting including an optical channel
After member, for the light beam being emitted from second spectrophotometric unit to be guided to a spatial light modulator.
3. light-source system as claimed in claim 1, it is characterised in that first spectrophotometric unit is used for will be from first light
The incident light beam in path is guided to wavelength conversion unit and will guided from the incident light beam of second light path to second point
Light unit, or, first spectrophotometric unit by from the incident light beam of first light path guide to the second spectrophotometric unit with
And it will be guided from the incident light beam of second light path to wavelength conversion unit.
4. light-source system as claimed in claim 3, it is characterised in that a relay system is provided with 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 arranged at the porch 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
Porch, the convergent lens be used for will be emitted from the optical tunnel light beam convergence relays to first spectrophotometric unit
On.
5. light-source system as claimed in claim 3, it is characterised in that mirror system is provided with 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, it is characterised in that a relaying system is also provided with second light path
System, the relay system are arranged at after the mirror system, and the relay system includes an optical tunnel, and the optical tunnel is used
In by incidence beam uniformity.
7. light-source system as claimed in claim 1, it is characterised in that the light path switch unit is by transmiting and reflection
The light beam sequential that mode launches the luminescence unit cuts first light path and the second light path.
8. light-source system as claimed in claim 1, it is characterised in that first spectrophotometric unit is an anti-blue yellow diaphragm thoroughly,
The anti-blue yellow diaphragm thoroughly is used to the blue laser of incidence reflexing to wavelength conversion unit or the second spectrophotometric unit and will entered
The gold-tinted penetrated and/or from the red transmission of wavelength conversion unit outgoing to the second spectrophotometric unit.
9. light-source system as claimed in claim 8, it is characterised in that the anti-blue yellow diaphragm thoroughly is incident towards red laser
Region is provided with an anti-red diaphragm or anti-red coating, and the anti-red diaphragm or anti-red coating are used for the red laser of incidence
Reflex to the wavelength conversion unit.
10. light-source system as claimed in claim 9, it is characterised in that the wavelength conversion unit is a yellow fluorescence colour wheel, institute
State yellow fluorescence colour wheel be used for absorb by anti-blue thoroughly yellow diaphragm reflection blue laser and produce gold-tinted, the second spectrophotometric unit is repaiied for one
Colour wheel, the colour wheel of repairing include multiple coloured light areas, and coloured light area sequential cuts the emergent light path of the anti-blue yellow diaphragm thoroughly,
So that the light beam of colour wheel sequential outgoing setpoint color is repaiied to a spatial light modulator.
11. light-source system as claimed in claim 10, it is characterised 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 the gold-tinted of incidence being divided into feux rouges and green glow and outgoing are red
To the spatial light modulator, the green wavelength is used to the gold-tinted of incidence being divided into feux rouges and green glow and outgoing green glow to institute light
Spatial light modulator is stated, the blue region is used to the blue laser of incidence being emitted to the spatial light modulator.
12. light-source system as claimed in claim 11, it is characterised in that the blue region is provided with scattering sheet.
13. light-source system as claimed in claim 11, it is characterised in that the coloured light area also includes a yellow region, described
Yellow region is used to the gold-tinted of incidence being emitted to the spatial light modulator.
14. light-source system as claimed in claim 1, it is characterised in that the red laser of the luminescence unit transmitting is via one
3rd 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 sequential.
15. light-source system as claimed in claim 14, it is characterised in that it is anti-blue thoroughly red that one is provided with the 3rd light path
Diaphragm, a relay system and the reflective mirror being placed in after the relay system, the relaying are provided with first light path
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 diaphragm thoroughly, the red laser is via described anti-blue thoroughly red
Diaphragm is transmitted through first spectrophotometric unit.
16. a kind of optical projection system, it is characterised in that empty including the light-source system as described in claim any one of 1-15 and one
Between optical modulator, the modular spatial light modulator be used for by the beam modulation that the light-source system is emitted into carry image letter
The image light of breath.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720703135.3U CN206863466U (en) | 2017-06-15 | 2017-06-15 | The optical projection system of light-source system and the application light-source system |
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| CN201720703135.3U CN206863466U (en) | 2017-06-15 | 2017-06-15 | The optical projection system of light-source system and the application light-source system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018227786A1 (en) * | 2017-06-15 | 2018-12-20 | 深圳市光峰光电技术有限公司 | Light source system and projection system using the light source system |
| CN110361920A (en) * | 2019-08-21 | 2019-10-22 | 吕素萍 | A kind of mixing light source |
| CN113467168A (en) * | 2020-03-30 | 2021-10-01 | 中强光电股份有限公司 | Illumination system, illumination control method and projection device |
-
2017
- 2017-06-15 CN CN201720703135.3U patent/CN206863466U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018227786A1 (en) * | 2017-06-15 | 2018-12-20 | 深圳市光峰光电技术有限公司 | Light source system and projection system using the light source system |
| CN110361920A (en) * | 2019-08-21 | 2019-10-22 | 吕素萍 | A kind of mixing light source |
| CN110361920B (en) * | 2019-08-21 | 2021-10-22 | 吕素萍 | Mixed light source |
| CN113467168A (en) * | 2020-03-30 | 2021-10-01 | 中强光电股份有限公司 | Illumination system, illumination control method and projection device |
| US11520221B2 (en) | 2020-03-30 | 2022-12-06 | Coretronic Corporation | Illumination system, illumination control method and projection apparatus |
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Address after: 518055 20-22 Floor, United Headquarters Building, No. 63 Xuefu Road, Yuehai Street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Guangfeng Polytron Technologies Inc Address before: 518055 Guangdong province Shenzhen Nanshan District Xili town south of Cha Guang road Shenzhen integrated circuit design application Industrial Park 401 Patentee before: Shenzhen Appotronics Co., Ltd. |
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