CN105022210A - Optical system, light emitting device and projection system - Google Patents
Optical system, light emitting device and projection system Download PDFInfo
- Publication number
- CN105022210A CN105022210A CN201410155373.6A CN201410155373A CN105022210A CN 105022210 A CN105022210 A CN 105022210A CN 201410155373 A CN201410155373 A CN 201410155373A CN 105022210 A CN105022210 A CN 105022210A
- Authority
- CN
- China
- Prior art keywords
- light
- optical filter
- optical
- wavelength conversion
- emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Projection Apparatus (AREA)
Abstract
The invention provides an optical system, a light emitting device and a projection system. The optical system comprises a wavelength conversion device provided with a wavelength conversion sheet, and at least two filters arranged in a preset shape. The wavelength conversion sheet has at least two light emitting areas, each light emitting area has a wavelength conversion material, and the wavelength conversion materials in different light emitting areas are different. Each filter receives excited light emitted by one light emitting area. Different filters correspond to different light emitting areas. Each filter reflects the excited light emitted by the corresponding light emitting area. According to the order of the filters, a later filter transmits the excited light transmitted or reflected by a previous filter so as to synthesize and output the excited light. Compared with the prior art, synthesis and output of different excited light is realized only by adopting one wavelength conversion sheet and a small number of filters. The optical system is simpler in structure and lower in cost.
Description
Technical field
The present invention relates to optical technical field, more particularly, relate to a kind of optical system, light-emitting device and optical projection system.
Background technology
In recent years, along with the development of optical semiconductor source technology, semiconductor light sources is adopted to replace UHP (UltraHigh Pressure, ultrahigh pressure mercury lamp) bulb to become an important technological development direction as the light source of projector.
In semiconductor light sources optical projection system comparatively early, drive wavelength conversion sheet to rotate by drive unit, produce the Stimulated Light of different colours, then by after the Stimulated Light of different colours synthesis light beam, carry out the display of projected image.But under the restriction of rotational speed of driving unit, the switch speed of different colours Stimulated Light is very low, can cause the appearance of rainbow effect, affects the quality of projection-display image.
Based on this, prior art proposes a kind of optical projection system, to solve the problem of rainbow effect, as shown in Figure 1, comprise three groups of light-emitting devices 10,20 and 30, these three groups of light-emitting devices comprise light source 101,201 and 301 respectively, optical filter 102,202 and 302, lens 103,203 and 303, wavelength conversion sheet 104,204 and 304, and drive unit 105,205 and 305.Wherein, often organize light-emitting device and all have a light source and wavelength conversion sheet, therefore, it can produce Stimulated Light λ 2, λ 3 and λ 4 respectively, different Stimulated Light λ 2, λ 3 and λ 4 after filtration mating plate 106,206 and 306 transmission or reflection after synthesize light beam, carry out the display of projected image.
In this optical projection system, by controlling unlatching or the closedown of light source, the light controlling exciting light switches between different wave length conversion sheet, and improve switch speed with this, eliminate rainbow effect, but, this optical projection system have employed multiple wavelength conversion sheet and more optical filter etc., complex structure, cost is higher, is unfavorable for the widespread use of finished device.
Summary of the invention
In view of this, the invention provides a kind of optical system, light-emitting device and optical projection system, to solve the problem that projection system architecture of the prior art is complicated, cost is higher.
For achieving the above object, the invention provides following technical scheme:
A kind of optical system, comprising:
Have the Wavelength converter of a wavelength conversion sheet, described wavelength conversion sheet has at least two light-emitting zones, and each light-emitting zone has a kind of material for transformation of wave length, and different light-emitting zones has different material for transformation of wave length;
According at least two optical filters of preset shape permutation and combination, each described optical filter receives the Stimulated Light that a light-emitting zone is launched, and the light-emitting zone that different optical filters is corresponding different, wherein, the Stimulated Light that the light-emitting zone that each described optical filter reflects its correspondence is launched, and, according to the ordering of described optical filter, the Stimulated Light of a rear previous filter transmission of filter transmission or reflection, for the synthesis of and export described Stimulated Light.
Preferably, described at least two optical filters according to preset shape permutation and combination are specially:
Described at least two optical filters are arranged in order along straight line.
Preferably, when described at least two optical filters are three optical filters, described at least two optical filters according to preset shape permutation and combination are specially:
Described three optical filters are arranged in order formation triangle.
Preferably, when described at least two optical filters are three optical filters, described optical system comprises the first optical filter, the second optical filter and the 3rd optical filter, wherein, described optical system also comprises reflector plate, for the Stimulated Light of described second filter transmission or reflection is reflexed to the 3rd optical filter.
Preferably, between each described light-emitting zone and corresponding optical filter, being provided with lens, for assembling the Stimulated Light collimating described light-emitting zone outgoing, and transmitting it to corresponding optical filter.
A kind of light-emitting device, comprising:
Optical system as above, described optical system comprises the Wavelength converter with a wavelength conversion sheet and at least two optical filters according to preset shape permutation and combination, described wavelength conversion sheet has at least two light-emitting zones, and each light-emitting zone has a kind of material for transformation of wave length, different light-emitting zones has different material for transformation of wave length;
At least two light sources, the equal correspondence of exciting light that each light source is launched incides on a described light-emitting zone of described wavelength conversion sheet, and the light-emitting zone that different light sources is corresponding different.
Preferably, described light-emitting device also comprises:
The control circuit be connected with described at least two light sources, launches exciting light respectively or simultaneously at least two light sources described in controlling, makes described material for transformation of wave length send Stimulated Light respectively or simultaneously.
Preferably, described optical filter and described light source lay respectively at the both sides of described wavelength conversion sheet.
Preferably, described optical filter and described light source are positioned at the same side of described wavelength conversion sheet, and described optical filter is between described wavelength conversion sheet and corresponding light source.
Preferably, when described optical filter is between described wavelength conversion sheet and corresponding light source, the optical filter of the exciting light that described optical filter is launched for light source described in transmission; Or for having the optical filter of through hole, the exciting light launched by light source described in described through hole transmission.
Preferably, also have at least two lens between described optical filter and described wavelength conversion sheet, each lens are all for assembling the Stimulated Light that collimation light-emitting zone is launched, and the light-emitting zone that different lens are corresponding different.
Preferably, described at least two light-emitting zones are concentric ring-shaped distribution.
Preferably, arrange successively in described at least two light-emitting zones direction outside along the center of circle, and wherein, the launching efficiency of the material for transformation of wave length of previous light-emitting zone is higher than the launching efficiency of the material for transformation of wave length of a rear light-emitting zone.
A kind of optical projection system, comprises the light-emitting device as above described in any one.
Compared with prior art, technical scheme provided by the present invention has the following advantages:
Optical system provided by the invention, light-emitting device and optical projection system, comprise at least two optical filters according to preset shape permutation and combination, described optical filter receives the Stimulated Light that the different light-emitting zone of same wavelength conversion sheet is launched, and according to the ordering of described optical filter, the Stimulated Light of a rear previous filter transmission of filter transmission or reflection, synthesizes with this and exports Stimulated Light.Compared with prior art, the present invention only have employed the wavelength conversion sheet of and less optical filter, just achieves synthesis and the output of different Stimulated Light, and structure is simpler, and cost is lower.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of optical projection system in prior art;
A kind of optical system diagram that Fig. 2 a provides for the embodiment of the present invention one;
The side view of a kind of optical system that Fig. 2 b provides for the embodiment of the present invention one;
The another kind of optical system diagram that Fig. 3 provides for the embodiment of the present invention one;
The structural drawing of the wavelength conversion sheet that Fig. 4 provides for the embodiment of the present invention two;
The structural representation of the light-emitting device that Fig. 5 provides for the embodiment of the present invention two;
There is in the light-emitting device that Fig. 6 provides for the embodiment of the present invention two structural drawing of the optical filter of through hole;
Structural representation in the light-emitting device that Fig. 7 provides for the embodiment of the present invention three;
The structural representation of another wavelength conversion sheet that Fig. 8 provides for the embodiment of the present invention three.
Embodiment
As described in background, although existing optical projection system eliminates rainbow effect, which employs multiple wavelength conversion sheet and more optical filter etc., complex structure, cost are higher, are unfavorable for the widespread use of finished device.
Based on this, the invention provides a kind of optical system, to overcome the problems referred to above that prior art exists, comprising:
Have the Wavelength converter of a wavelength conversion sheet, described wavelength conversion sheet has at least two light-emitting zones, and each light-emitting zone has a kind of material for transformation of wave length, and different light-emitting zones has different material for transformation of wave length; According at least two optical filters of preset shape permutation and combination, each described optical filter receives the Stimulated Light that a light-emitting zone is launched, and the light-emitting zone that different optical filters is corresponding different, wherein, the Stimulated Light that the light-emitting zone that each described optical filter reflects its correspondence is launched, and, according to the ordering of described optical filter, the Stimulated Light of a rear previous filter transmission of filter transmission or reflection, for the synthesis of and export described Stimulated Light.
The invention provides a kind of light-emitting device, comprising:
Optical system as above, described optical system comprises the Wavelength converter with a wavelength conversion sheet and at least two optical filters according to preset shape permutation and combination, described wavelength conversion sheet has at least two light-emitting zones, and each light-emitting zone has a kind of material for transformation of wave length, different light-emitting zones has different material for transformation of wave length; At least two light sources, the equal correspondence of exciting light that each light source is launched incides on a described light-emitting zone, and the light-emitting zone that different light sources is corresponding different.
The invention provides a kind of optical projection system, comprise light-emitting device as above.
Optical system provided by the invention, light-emitting device and optical projection system, comprise at least two optical filters according to preset shape permutation and combination, described optical filter receives the Stimulated Light that the different light-emitting zone of Same Wavelength conversion sheet is launched, and according to the ordering of described optical filter, the Stimulated Light of a rear previous filter transmission of filter transmission or reflection, synthesizes with this and exports Stimulated Light.Compared with prior art, the present invention only have employed the wavelength conversion sheet of and less optical filter, just achieves synthesis and the output of different Stimulated Light, and structure is simpler, and cost is lower.
Be more than core concept of the present invention, for enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, when describing the embodiment of the present invention in detail; for ease of explanation; represent that the sectional view of device architecture can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, it should not limit the scope of protection of the invention at this.In addition, the three-dimensional space of length, width and the degree of depth should be comprised in actual fabrication.
Embodiment one
Present embodiments provide a kind of optical system, comprising: there are the Wavelength converter of a wavelength conversion sheet and at least two optical filters according to preset shape permutation and combination.
Described wavelength conversion sheet has at least two light-emitting zones, and each light-emitting zone has a kind of material for transformation of wave length, and different light-emitting zones has different material for transformation of wave length; Described at least two optical filters according to preset shape permutation and combination, each optical filter all receives the Stimulated Light that a light-emitting zone is launched, and the light-emitting zone that different optical filters is corresponding different, wherein, the Stimulated Light that the light-emitting zone that each described optical filter reflects its correspondence is launched, and, according to the ordering of described optical filter, the Stimulated Light of a rear previous filter transmission of filter transmission or reflection, for the synthesis of and export described Stimulated Light.
Optical system in the present embodiment can according to the shape of light-emitting zone on wavelength conversion sheet and distribution, designs the shape of optical filter and permutation and combination etc. in advance, so that synthesize and export the Stimulated Light that on described wavelength conversion sheet, different light-emitting zone is launched.
Wherein, according at least two optical filters of preset shape permutation and combination can be: described at least two optical filters are arranged in order along straight line.Described wavelength conversion sheet to have three light-emitting zones and described optical system comprises three optical filters, as shown in Figure 2 a, wavelength conversion sheet 204 has circular and the first light-emitting zone 2041 be outwards arranged in order along the center of circle, second light-emitting zone 2042 and the 3rd light-emitting zone 2043, wherein, optical filter 201, 202 and 203 receive the 3rd light-emitting zone 2043 respectively, the Stimulated Light that first light-emitting zone 2041 and the second light-emitting zone 2042 are launched, or receive the first light-emitting zone 2041 respectively, the Stimulated Light that second light-emitting zone 2042 and the 3rd light-emitting zone 2043 are launched, the present invention is not limited to this, and, optical filter 201, 202 and 203 are arranged in order along a vertical straight line.
As shown in Figure 2 b, wherein, Stimulated Light λ 4, λ 5 that the light-emitting zone that optical filter 201,202 and 203 can reflect its correspondence is launched and λ 6, and optical filter 202 can transmission filter 201 reflect Stimulated Light λ 4, optical filter 203 the Stimulated Light λ 4 of transmission filter 202 transmission or reflection and λ 5, Stimulated Light λ 4, λ 5 and λ 6 can be merged into light beam after mating plate 203 and exports in follow-up lens 205 and dodging device 206 after filtration.
Wherein, optical filter 201,202 and 203, i.e. at least two optical filters, along straight line arrangement, when referring to that these optical filter correspondences receive the Stimulated Light of different light-emitting zone, the Stimulated Light region incided on optical filter is straight line.Because light is preferably all through the center of optical filter, therefore, along straight line arrangement, described at least two optical filters refer to that the center of at least two optical filters is straight line arrangement.
As shown in Figure 2 b, the Stimulated Light of different light-emitting zone outgoing is parallel to be incided on different optical filters, owing to being parallel to each other between these three optical filters, namely these three angles between optical filter with surface level are identical, therefore, the different Stimulated Light angle incided on optical filter is identical, the exit direction of the Stimulated Light after filtration after mating plate reflection is also identical, and, the region incided on optical filter due to Stimulated Light is straight line, therefore, Stimulated Light after filtration after mating plate reflection is also in straight line, thus different Stimulated Light synthesis light beams can be made.
Or when described at least two optical filters are three optical filters, described at least two optical filters according to preset shape permutation and combination can also be: described three optical filters are arranged in order formation triangle.
Now, described optical system comprises the first optical filter 301, second optical filter 302 and the 3rd optical filter 303, the first light-emitting zone 3051, second light-emitting zone 3052 respectively in corresponding wavelength conversion sheet and the 3rd light-emitting zone 3053, wherein, described optical system also comprises reflector plate 304, for the Stimulated Light λ 4 of described second optical filter 302 transmission or reflection and λ 5 is reflexed to the 3rd optical filter 303, as shown in Figure 3.
First optical filter 301, second optical filter 302 and the 3rd optical filter 303 are arranged in order and form triangle, it reflects the Stimulated Light λ 4 of each self-corresponding light-emitting zone respectively, and the Stimulated Light λ 4 of the second optical filter 302 transmission first optical filter 301 reflection, the Stimulated Light λ 4 of the second optical filter 302 transmission or reflection and λ 5 is reflexed to the 3rd optical filter 303 by reflector plate 304, make its Stimulated Light λ 6 reflected with the 3rd optical filter 303 be merged into light beam, and export follow-up lens etc. to.
In like manner, the first optical filter 301, second optical filter 302 and the 3rd optical filter 303 are arranged in order and form triangle, and refer to that the region that Stimulated Light incides on these three optical filters forms triangle, the center being preferably these three optical filters forms triangle.
As shown in Figure 3, light beam is synthesized in order to make Stimulated Light λ 4 and λ 5, first optical filter 301 and the second optical filter 302 are parallel to each other and the arrangement in straight line, due to the 3rd optical filter 303 and these two optical filters not point-blank, therefore, it directly can not receive the Stimulated Light λ 4 after synthesis and λ 5, namely need employing one reflector plate 304 that the Stimulated Light λ 4 after synthesis and λ 5 is reflexed to the 3rd optical filter 303, and reflector plate 304 needs to be arranged to certain angle, the Stimulated Light λ 4 after penetrating the 3rd optical filter 303 can be made identical with the exit direction of the Stimulated Light λ 6 after the 3rd optical filter 303 reflects with the exit direction of λ 5, thus make Stimulated Light λ 4, λ 5 and λ 6 synthesizes light beam.
Certainly, the exit direction of the Stimulated Light λ 4 after the synthesis shown in Fig. 3, λ 5 and λ 6 is not single fixing, and it can change according to the Angulation changes of optical filter and reflector plate, to adapt to the needs of different application scene.
In the present embodiment, four, five even more optical filters can be comprised according at least two optical filters of preset shape permutation and combination.When comprising four optical filters, the mode of its permutation and combination can for being arranged in a linear or being quadrilateral; When comprising five optical filters, the mode of its permutation and combination can for being arranged in a linear or pentagon; When comprising more optical filter, the mode of its permutation and combination by that analogy, linearly or polygon, also specifically can set according to different application scenarioss.
Now, when four, five even more optical filters are arranged in a linear, the mode of different Stimulated Light synthesis light beam is identical with the mode that three optical filters described above synthesize light beam, namely the Stimulated Light that the light-emitting zone that each described optical filter reflects its correspondence is launched, and, according to the ordering of described optical filter, the Stimulated Light of a rear previous filter transmission of filter transmission or reflection, for the synthesis of and export described Stimulated Light.
When four optical filters are quadrangular array, just need to arrange two reflector plates to change the exit direction of light, so that by four Stimulated Light synthesis light beams.Such as, the first Stimulated Light λ 4 after first optical filter reflection and the second Stimulated Light λ 5 after the reflection of the second optical filter is carried out conjunction light, obtain the first conjunction light, then first reflector plate is utilized to close photoconduction to the 3rd optical filter in the light path being positioned at the 3rd Stimulated Light λ 6 by first, and make the after by the 3rd optical filter first conjunction light and the 3rd Stimulated Light λ 6 synthesize light beam, thus obtain the second conjunction light, recycle second reflector plate and close photoconduction to the 4th optical filter in the light path being positioned at the 4th Stimulated Light λ 7 by second, the after by the 4th optical filter second conjunction light and the 4th Stimulated Light λ 7 is made to synthesize light beam, thus four Stimulated Light are synthesized together, and export follow-up lens to.
Certainly, in other embodiments of the invention, also this two reflector plates can be set according to other modes, as these two reflector plates are all arranged between the second optical filter and the 3rd optical filter, now, light is closed in the Stimulated Light synthesis first of the first optical filter and the second optical filter outgoing, light is closed in the Stimulated Light synthesis second of the 3rd optical filter and the 4th optical filter outgoing, two reflector plates between the second optical filter and the 3rd optical filter close light direction by first changes twice, so that with second, to close the exit direction of light identical, and then close light and the second conjunction light i.e. four Stimulated Light synthesis light beams by first.
In like manner, multiple optical filter be the even polygonal situation of pentagon by that analogy.
In addition, between each described light-emitting zone and corresponding optical filter, being provided with lens, for assembling the Stimulated Light collimating described light-emitting zone outgoing, and transmitting it to corresponding optical filter.As being provided with lens between the 3rd light-emitting zone 2043 and the first optical filter 201, being also provided with lens between the first light-emitting zone 2041 and the first optical filter 202, collimating for assembling and transmit Stimulated Light.The shooting angle that collimation Stimulated Light can not only adjust Stimulated Light assembled by scioptics, can also make keeping parallelism between each Stimulated Light as required.
The optical system that the present embodiment provides, comprise at least two optical filters according to preset shape permutation and combination, described optical filter receives the Stimulated Light that the different light-emitting zone of Same Wavelength conversion sheet is launched, and according to the ordering of described optical filter, the Stimulated Light of a rear previous filter transmission of filter transmission or reflection, synthesizes with this and exports Stimulated Light.Compared with prior art, the present invention only have employed the wavelength conversion sheet of and less optical filter, just achieves synthesis and the output of different Stimulated Light, and structure is simpler, and cost is lower.
Embodiment two
Present embodiments provide a kind of light-emitting device, comprise: the optical system that above-described embodiment provides at least two light sources and the control circuit be connected with described at least two light sources, wherein, this optical system comprises the Wavelength converter with a wavelength conversion sheet and at least two optical filters according to preset shape permutation and combination.
In the present embodiment, preferably, wavelength conversion sheet in optical system has three light-emitting zones, as shown in Figure 4, wavelength conversion sheet 410 comprises non-overlapping copies and the first light-emitting zone 4101, second light-emitting zone 4102 of the distribution in concentric ring-shaped and the 3rd light-emitting zone 4103, described first light-emitting zone 4101 has first wave length transition material, described second light-emitting zone 4102 has second wave length transition material, and described 3rd light-emitting zone 4103 has the 3rd material for transformation of wave length.
Particularly, wavelength conversion sheet 410 is fluorescent wheel, this fluorescent wheel has the fluorescent powder of at least two kinds of different colours, namely first wave length transition material, second wave length transition material and the 3rd material for transformation of wave length are the fluorescent powder of different colours, as red fluorescence powder, blue colour fluorescent powder or green emitting phosphor.These three kinds of fluorescent powder are converted into the Stimulated Light of different colours after absorbing exciting light, as ruddiness, blue light and green glow.
In addition, as shown in Figure 4, arrange successively in first light-emitting zone 4101, second light-emitting zone 4102 and the 3rd light-emitting zone 4103 direction outside along the center of circle, preferably, the launching efficiency of the material for transformation of wave length of previous light-emitting zone is higher than the launching efficiency of the material for transformation of wave length of a rear light-emitting zone, namely in the first light-emitting zone 4101, the launching efficiency of first wave length transition material is the highest, and in the 3rd light-emitting zone 4103, the launching efficiency of the 3rd material for transformation of wave length is minimum.This is because launching efficiency is lower, the temperature of the material for transformation of wave length after being excited is higher, because the area of the 3rd light-emitting zone is maximum, therefore, dispels the heat best, thus can reduce the temperature of the 3rd material for transformation of wave length after being excited preferably.
The equal correspondence of exciting light of launching due to each light source incides on a described light-emitting zone, and the light-emitting zone that different light sources is corresponding different, therefore, in the present embodiment, the number of light source is also three, as shown in Figure 5, comprise the first light source 501, secondary light source 502 and the 3rd light source 503, and the first exciting light λ 1 that the first light source 501 is launched incide the first light-emitting zone 4101 first wave length transition material on produce the first Stimulated Light λ 4, the second wave length transition material that the second exciting light λ 2 that secondary light source 502 is launched incides the second light-emitting zone 4102 produces the second Stimulated Light λ 5, the 3rd material for transformation of wave length that the 3rd exciting light λ 3 that 3rd light source 503 is launched incides the 3rd light-emitting zone 4103 produces the 3rd Stimulated Light λ 6.Wherein, each light source can comprise one or more luminescent device.
In the present embodiment, the first light source 501, secondary light source 502 are identical luminescent device with the 3rd light source 503, and this luminescent device is laser instrument, and its first exciting light λ 1, second exciting light λ 2 launched and the 3rd exciting light λ 3 is the light of phase co-wavelength.Certainly, in other embodiments of the invention, first light source 501, secondary light source 502 and the 3rd light source 503 also can adopt different luminescent devices, as laser instrument and light emitting diode etc., as long as it can inspire the Stimulated Light of needs with corresponding material for transformation of wave length.
Light-emitting device in the present embodiment also comprises: the control circuit be connected with described at least two light sources, namely the control circuit be connected with the 3rd light source 503 with the first light source 501, secondary light source 502, exciting light is launched according to certain sequential for controlling these three light sources, make described material for transformation of wave length send Stimulated Light according to certain sequential, thus form the Stimulated Light with sequential of different colours; Or control the first light source 501, secondary light source 502 and the 3rd light source 503 and launch exciting light simultaneously, form the white light without sequential.
The light-emitting device provided in the present embodiment, the length of the control signal time that can be sent by control circuit, control switching time and the switch speed of Different Light, thus control the switch speed of different colours Stimulated Light, therefore, the switch speed of different colours Stimulated Light can be increased substantially, thus rainbow effect can be eliminated completely.
Optical system in the present embodiment also comprises: according to three optical filters of preset shape permutation and combination, each described optical filter receives the Stimulated Light that a light-emitting zone is launched, and the light-emitting zone that different optical filters is corresponding different, as shown in Figure 5, optical filter 504, 505 and 506 receive respectively and reflect the first light-emitting zone 4101, the Stimulated Light that second light-emitting zone 4102 and the 3rd light-emitting zone 4103 are launched, and, the Stimulated Light λ 4 of optical filter 505 transmission filter 504 reflection, the Stimulated Light λ 4 of optical filter 506 transmission filter 504 transmission or reflection and λ 5, and with the Stimulated Light λ 6 that itself reflects, lens 512 and dodging device 513 is exported to after synthesis light beam.
In the present embodiment, optical filter 503,504 and 505 in described optical system and described light source 501,502 and 503 are positioned at the same side of described wavelength conversion sheet 410, and described optical filter lays respectively between corresponding light source and wavelength conversion sheet, now, the optical filter of the exciting light that described optical filter is launched for light source described in transmission, namely can make exciting light incide on wavelength conversion sheet by described optical filter; Or described optical filter is the optical filter with through hole, the exciting light launched by light source described in described through hole transmission.
As shown in Figure 6, when the first exciting light λ 1 is identical or close with the wavelength of the first Stimulated Light λ 4, first optical filter 504 has through hole 5041, the first exciting light λ 1 is made to run through the first optical filter 504 by through hole 5041, first Stimulated Light λ 4 is still reflected by the first optical filter 504, thus the first exciting light λ 1 and the first Stimulated Light λ 4 can not be made to mix, affect projection-display image effect.Further, this optical filter with through hole can be applied in any embodiment of the present invention.
In the present embodiment, between described optical filter and described wavelength conversion sheet, also there are at least two lens, and, each lens are all for assembling the Stimulated Light that collimation light-emitting zone is launched, and the light-emitting zone that different lens are corresponding different, therefore, in the present embodiment, lens are three, and described lens can be single lens or lens combination.Wherein, lens 507,508 and 509 are respectively used to assemble collimation first Stimulated Light λ 4, second Stimulated Light λ 5 and the 3rd Stimulated Light λ 6, and are exported to corresponding optical filter.
As shown in Figure 5, first light source 501, optical filter 504 are arranged in order with the exit direction of lens 507 along the first exciting light λ 1, secondary light source 502, optical filter 505 are arranged in order with the exit direction of lens 508 along the second exciting light λ 2,3rd light source 503, optical filter 506 are arranged in order with the exit direction of lens 509 along the 3rd exciting light λ 3, and it is all positioned at the same side of wavelength convert load 410.
In the present embodiment, optical filter 504,505 and 506 can be arranged in order along straight line, also can be arranged in order triangularity, certainly, during according to rounded projections arranged, also comprise reflector plate, for the Stimulated Light λ 4 of optical filter 505 transmission or reflection and λ 5 is reflexed to optical filter 506.
And, when three optical filters arrange along straight line, the incidence point of three light sources of its correspondence, three lens and three exciting lights also arranges according to straight line respectively, when three optical filter rounded projections arranged, in like manner, the incidence point of three corresponding light sources, three lens and three exciting lights is also respectively according to rounded projections arranged.
Be straight line for three optical filters, as shown in Figure 5, to synthesize and the detailed process exporting Stimulated Light is: because optical filter 504 can transmission first exciting light λ 1, therefore, the first exciting light λ 1 of launching of first light source 501 can mating plate 504 and lens 507 after filtration, incide on the first light-emitting zone 4101 of wavelength conversion sheet 410, first wave length transition material is made to produce the first Stimulated Light λ 4, after wavelength conversion sheet 410 reflects, assembled by lens 507 and collimate and incide optical filter 504, because optical filter 504 can reflect the first Stimulated Light λ 4, therefore, first Stimulated Light λ 4 is reflected to optical filter 505, because optical filter 505 and optical filter 506 can transmission first Stimulated Light λ 4, therefore, first Stimulated Light λ 4 enters lens 512,
In like manner, the second Stimulated Light λ 5 that the second exciting light λ 2 that secondary light source 502 is launched produces, mating plate 505 reflects, after optical filter 506 transmission, enters lens 512 after filtration; The second Stimulated Light λ 6 that the 3rd exciting light λ 3 that 3rd light source 503 is launched produces, after mating plate 506 reflects after filtration, enters lens 512.
First Stimulated Light λ 4, second Stimulated Light λ 5 and the second Stimulated Light λ 6 assembles after collimation through lens 512 and exports dodging device 513 to, then after dodging device 513 carries out even light, collimate through collimation lens and input TIR(Total Internal Reflection, total internal reflection) in prism, then through DMD(DigitalMirror Device, Digital Micromirror Device) after chip carries out color treatments, incide projection lens, carry out the display of projected image.
In the present embodiment, the switch speed between different colours Stimulated Light depends on the switch speed of Different Light, therefore, even if wavelength conversion sheet 410 does not carry out rotating the switching that yet can realize between different colours Stimulated Light.But continue to incide the same position of fluorescent wheel in order to avoid exciting light and cause the phenomenon of fluorescent powder quencher, therefore, the wavelength conversion sheet 410 in the present embodiment or need carries out rotating.Therefore, light-emitting device in this enforcement also comprises the drive unit 411 be connected with wavelength conversion sheet 410, for driving wavelength conversion sheet 410 centrally axle rotation, as the direction of the arrow in the middle of annulus in Fig. 4, but the size of its rotating speed can not have an impact to the switch speed between different colours Stimulated Light, therefore, even if its rotating speed is very low, projection-display image also can not be made to produce rainbow effect.
The light-emitting device that the present embodiment provides, there are at least two light sources, the exciting light that each described light source is launched all incides on a kind of material for transformation of wave length, and the material for transformation of wave length that different light source is corresponding different, thus the switching that can control between Different Light by control circuit, make different material for transformation of wave length produce Stimulated Light, achieve the alternately change between different colours Stimulated Light, substantially increase switch speed, rainbow effect can be eliminated completely, improve the quality of projection-display image.
Further, the light-emitting device that the present embodiment provides, only have employed the wavelength conversion sheet of and less optical filter, just achieves synthesis and the output of different Stimulated Light, and structure is simpler, and cost is lower, is more conducive to the widespread use of cost device.
Embodiment three
Present embodiments provide a kind of light-emitting device, its principle is same as the previously described embodiments, its difference is the position relationship etc. of light source and optical system, particularly, as shown in Figure 7, the first light source 701, secondary light source 702 and the 3rd light source 703 lay respectively at the both sides of wavelength conversion sheet 710 with optical filter 707,708 and 709, wherein, because optical filter 707 only reflects the first Stimulated Light λ 4, therefore, it can be reflector plate 4.
And, lens 704,705 and 706 lay respectively between corresponding optical filter (or reflector plate) and wavelength conversion sheet 710, namely as shown in Figure 7, be positioned at the lens 704 of the same side and reflector plate 707 to be arranged in order along the exit direction of the first exciting light λ 1, lens 705 and optical filter 708 are arranged in order along the exit direction of the second exciting light λ 2, and lens 706 and optical filter 709 are arranged in order along the exit direction of the 3rd exciting light λ 3.
In the present embodiment, the structure of wavelength conversion sheet 710 is identical with the structure of embodiment two medium wavelength conversion sheet 410, the distribution in concentric ring-shaped of the first light-emitting zone namely on wavelength convert load 710, the second light-emitting zone and the 3rd light-emitting zone, its application process is also identical with embodiment two.
Certainly, the wavelength conversion sheet of other structures can be adopted in other embodiments of the invention, such as, adopt the wavelength conversion sheet of multi-segment structure, as shown in Figure 8, comprise non-overlapping copies and be positioned at the first light-emitting zone 8101 of the zones of different of same annulus, second light-emitting zone 8102, 3rd light-emitting zone 8103, drive unit 811 need drive wavelength conversion sheet 810 to come and go within the scope of predetermined angle θ and rotate, namely rotate according to arrow indicated direction in such as Fig. 8, thus make the exciting light of same light source incide on Same Wavelength transition material, the exciting light of Different Light incides on different material for transformation of wave length.
Equally, in the present embodiment, reflector plate 707, optical filter 708 and 709 can be arranged in order along straight line, also triangularity can be arranged in order, certainly, during according to rounded projections arranged, also comprise another reflector plate, for the Stimulated Light λ 4 of optical filter 708 transmission or reflection and λ 5 is reflexed to optical filter 709.
Be straight line for three optical filters, light-emitting device in the present embodiment synthesizes and the detailed process exporting Stimulated Light is: the first exciting light λ 1 that the first light source 701 is launched, incide on the first light-emitting zone 7101 of wavelength conversion sheet 710, first wave length transition material is made to produce the first Stimulated Light λ 4, this first Stimulated Light λ 4 assembles after collimation through lens 704, incide reflector plate 707, after reflector plate 707 reflects, arrive optical filter 708, because optical filter 708 and optical filter 709 can transmission first Stimulated Light λ 4, therefore, first Stimulated Light λ 4 enters lens 712,
And the second exciting light λ 2 that secondary light source 702 is launched, incide on the second light-emitting zone 7102 of wavelength conversion sheet 710, second wave length transition material is made to produce the second Stimulated Light λ 5, this second Stimulated Light λ 5 assembles after collimation through lens 705, incide optical filter 708, mating plate 708 reflects rear arrival optical filter 709 after filtration, because optical filter 709 can transmission second Stimulated Light λ 5, therefore, the second Stimulated Light λ 5 enters lens 712;
In like manner, the 3rd Stimulated Light λ 6 that the 3rd exciting light λ 1 produces, assembles after collimation, optical filter 709 reflection through lens 706, enters lens 712;
First Stimulated Light λ 4, second Stimulated Light λ 5 and the second Stimulated Light λ 6 assembles after collimation through lens 712 and exports dodging device 713 to, then after dodging device 713 carries out even light, collimate through collimation lens and input in TIR prism, then carry out, after color treatments, inciding projection lens through dmd chip.
The light-emitting device that the present embodiment provides, there are at least two light sources, the exciting light that each described light source is launched all incides on a kind of material for transformation of wave length, and the material for transformation of wave length that different light source is corresponding different, thus the switching that can control between Different Light by control circuit, make different material for transformation of wave length produce Stimulated Light, achieve the alternately change between different colours Stimulated Light, substantially increase switch speed, rainbow effect can be eliminated completely, improve the quality of projection-display image.
Further, the light-emitting device that the present embodiment provides, only have employed the wavelength conversion sheet of and less optical filter, just achieves synthesis and the output of different Stimulated Light, and structure is simpler, and cost is lower, is more conducive to the widespread use of cost device.
Embodiment four
Present embodiments provide a kind of optical projection system, comprise the light-emitting device that above-mentioned any embodiment provides, the optical projection system that the present embodiment provides, the switching between Different Light is controlled by control circuit, realize the switching between different colours Stimulated Light, switch speed is fast, and without rainbow effect, projection-display image quality is high.Further, the optical projection system that the present embodiment provides, structure is simpler, and cost is lower, is more conducive to the widespread use of cost device.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (14)
1. an optical system, is characterized in that, comprising:
Have the Wavelength converter of a wavelength conversion sheet, described wavelength conversion sheet has at least two light-emitting zones, and each light-emitting zone has a kind of material for transformation of wave length, and different light-emitting zones has different material for transformation of wave length;
According at least two optical filters of preset shape permutation and combination, each described optical filter receives the Stimulated Light that a light-emitting zone is launched, and the light-emitting zone that different optical filters is corresponding different, wherein, the Stimulated Light that the light-emitting zone that each described optical filter reflects its correspondence is launched, and, according to the ordering of described optical filter, the Stimulated Light of a rear previous filter transmission of filter transmission or reflection, for the synthesis of and export described Stimulated Light.
2. optical system according to claim 1, is characterized in that, described at least two optical filters according to preset shape permutation and combination are specially:
Described at least two optical filters are arranged in order along straight line.
3. optical system according to claim 1, is characterized in that, when described at least two optical filters are three optical filters, described at least two optical filters according to preset shape permutation and combination are specially:
Described three optical filters are arranged in order formation triangle.
4. optical system according to claim 3, it is characterized in that, when described at least two optical filters are three optical filters, described optical system comprises the first optical filter, the second optical filter and the 3rd optical filter, wherein, described optical system also comprises reflector plate, for the Stimulated Light of described second filter transmission or reflection is reflexed to the 3rd optical filter.
5. optical system according to claim 4, is characterized in that, is provided with lens between each described light-emitting zone and corresponding optical filter, for assembling the Stimulated Light collimating described light-emitting zone outgoing, and transmits it to corresponding optical filter.
6. a light-emitting device, is characterized in that, comprising:
Optical system described in any one of claim 1-5, described optical system comprises the Wavelength converter with a wavelength conversion sheet and at least two optical filters according to preset shape permutation and combination, described wavelength conversion sheet has at least two light-emitting zones, and each light-emitting zone has a kind of material for transformation of wave length, different light-emitting zones has different material for transformation of wave length;
At least two light sources, the equal correspondence of exciting light that each light source is launched incides on a described light-emitting zone of described wavelength conversion sheet, and the light-emitting zone that different light sources is corresponding different.
7. light-emitting device according to claim 6, is characterized in that, described light-emitting device also comprises:
The control circuit be connected with described at least two light sources, launches exciting light respectively or simultaneously at least two light sources described in controlling, makes described material for transformation of wave length send Stimulated Light respectively or simultaneously.
8. light-emitting device according to claim 7, is characterized in that, described optical filter and described light source lay respectively at the both sides of described wavelength conversion sheet.
9. light-emitting device according to claim 7, is characterized in that, described optical filter and described light source are positioned at the same side of described wavelength conversion sheet, and described optical filter is between described wavelength conversion sheet and corresponding light source.
10. light-emitting device according to claim 9, is characterized in that, when described optical filter is between described wavelength conversion sheet and corresponding light source, and the optical filter of the exciting light that described optical filter is launched for light source described in transmission; Or for having the optical filter of through hole, the exciting light launched by light source described in described through hole transmission.
11. want the light-emitting device described in 8 or 10 according to right, it is characterized in that, also have at least two lens between described optical filter and described wavelength conversion sheet, each lens are all for assembling the Stimulated Light that collimation light-emitting zone is launched, and the light-emitting zone that different lens are corresponding different.
12. light-emitting devices according to claim 11, is characterized in that, described at least two light-emitting zones are concentric ring-shaped distribution.
13. light-emitting devices according to claim 12, it is characterized in that, arrange successively in described at least two light-emitting zones direction outside along the center of circle, wherein, the launching efficiency of the material for transformation of wave length of previous light-emitting zone is higher than the launching efficiency of the material for transformation of wave length of a rear light-emitting zone.
14. 1 kinds of optical projection systems, is characterized in that, comprise the light-emitting device as described in any one of claim 6-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155373.6A CN105022210B (en) | 2014-04-17 | 2014-04-17 | Optical system, light emitting device and optical projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155373.6A CN105022210B (en) | 2014-04-17 | 2014-04-17 | Optical system, light emitting device and optical projection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105022210A true CN105022210A (en) | 2015-11-04 |
| CN105022210B CN105022210B (en) | 2019-07-02 |
Family
ID=54412284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410155373.6A Active CN105022210B (en) | 2014-04-17 | 2014-04-17 | Optical system, light emitting device and optical projection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105022210B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873296A (en) * | 2017-04-05 | 2017-06-20 | 苏州佳世达光电有限公司 | Optical projection system |
| CN107044620A (en) * | 2016-02-05 | 2017-08-15 | 深圳市绎立锐光科技开发有限公司 | Hot spot pressure texture and light supply apparatus |
| CN109212873A (en) * | 2017-06-29 | 2019-01-15 | 无锡视美乐激光显示科技有限公司 | A kind of dynamic wavelength conversion equipment and method that can guarantee brightness and colour gamut simultaneously |
| CN110389489A (en) * | 2018-04-19 | 2019-10-29 | 深圳光峰科技股份有限公司 | Light-source system, projection device and colour wheel |
| CN113966024A (en) * | 2021-12-21 | 2022-01-21 | 广州光联电子科技有限公司 | Laser adjusting method and device and laser system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645826A (en) * | 2011-11-10 | 2012-08-22 | 深圳市光峰光电技术有限公司 | Light source system, illuminating device and projecting device |
| US20130100644A1 (en) * | 2011-10-20 | 2013-04-25 | Appotronics Corporation Limited | Light sources system and projection device using the same |
| CN103076712A (en) * | 2011-10-26 | 2013-05-01 | 深圳市光峰光电技术有限公司 | Projection light source and projection device using same |
-
2014
- 2014-04-17 CN CN201410155373.6A patent/CN105022210B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130100644A1 (en) * | 2011-10-20 | 2013-04-25 | Appotronics Corporation Limited | Light sources system and projection device using the same |
| CN103076712A (en) * | 2011-10-26 | 2013-05-01 | 深圳市光峰光电技术有限公司 | Projection light source and projection device using same |
| CN102645826A (en) * | 2011-11-10 | 2012-08-22 | 深圳市光峰光电技术有限公司 | Light source system, illuminating device and projecting device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044620A (en) * | 2016-02-05 | 2017-08-15 | 深圳市绎立锐光科技开发有限公司 | Hot spot pressure texture and light supply apparatus |
| CN107044620B (en) * | 2016-02-05 | 2021-02-26 | 深圳光峰科技股份有限公司 | Light spot compression structure and light source device |
| CN106873296A (en) * | 2017-04-05 | 2017-06-20 | 苏州佳世达光电有限公司 | Optical projection system |
| CN109212873A (en) * | 2017-06-29 | 2019-01-15 | 无锡视美乐激光显示科技有限公司 | A kind of dynamic wavelength conversion equipment and method that can guarantee brightness and colour gamut simultaneously |
| CN110389489A (en) * | 2018-04-19 | 2019-10-29 | 深圳光峰科技股份有限公司 | Light-source system, projection device and colour wheel |
| CN110389489B (en) * | 2018-04-19 | 2021-10-12 | 深圳光峰科技股份有限公司 | Light source system, projection equipment and color wheel |
| CN113966024A (en) * | 2021-12-21 | 2022-01-21 | 广州光联电子科技有限公司 | Laser adjusting method and device and laser system |
| CN113966024B (en) * | 2021-12-21 | 2022-03-18 | 广州光联电子科技有限公司 | Laser adjusting method and device and laser system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105022210B (en) | 2019-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10228613B2 (en) | Light source system and related projection system employing a light division system and two spatial light modulators | |
| CN106523955B (en) | Lighting system and projection arrangement | |
| CN103189794B (en) | Light fixture and use its projection-type display apparatus | |
| CN109634041B (en) | Light source system and projection system | |
| US11243460B2 (en) | Light source device and projection system | |
| CN103201678B (en) | Lighting device and the projection display device using it | |
| EP1494062A2 (en) | Optical beam-combining total internal reflection (TIR) prism and light-condensing illumination apparatus incorporating same | |
| CN104937487A (en) | Projection-type display device | |
| CN105022210A (en) | Optical system, light emitting device and projection system | |
| CN102124397A (en) | A recycling system and method for increasing brightness using light pipes with one or more light sources, and a projector incorporating the same | |
| US11320728B2 (en) | Spatial light modulator image display projector apparatus with solid state illumination light sources | |
| TWI778680B (en) | Hybrid light source system and projection display device | |
| US9453999B2 (en) | Phosphor color wheel and projection display device including same | |
| CN109426052A (en) | Optical projection system | |
| CN107065413A (en) | A kind of light supply apparatus and optical projection system | |
| US11415872B2 (en) | Wavelength conversion device, light-emitting device and projection device | |
| CN114594652A (en) | Light source apparatus and projection apparatus | |
| CN106681090A (en) | Light source module and projection equipment | |
| WO2021109781A1 (en) | Projection optical system | |
| JP7342624B2 (en) | Light source device, image projection device, and light source optical system | |
| CN104565955B (en) | LED lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171013 Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xi Li Light Road No. 1089 Shenzhen integrated circuit design and application of Industrial Park Building 4 Applicant after: APPOTRONICS Corp.,Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xi Li Light Road No. 1089 Shenzhen integrated circuit design and application of Industrial Park Building 4 Applicant before: YLX Inc. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Applicant after: APPOTRONICS Corp.,Ltd. Address before: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor. Applicant before: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address after: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor. Applicant after: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address before: 518055 Shenzhen, Shenzhen, Guangdong 1089 Nanshan District road 1089, Shenzhen integrated circuit design application Industrial Park, 4 floor. Applicant before: APPOTRONICS Corp.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |