CN103186025B - Light source device, light source generation method and laser projector with light source device - Google Patents
Light source device, light source generation method and laser projector with light source device Download PDFInfo
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- CN103186025B CN103186025B CN201310089522.9A CN201310089522A CN103186025B CN 103186025 B CN103186025 B CN 103186025B CN 201310089522 A CN201310089522 A CN 201310089522A CN 103186025 B CN103186025 B CN 103186025B
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Abstract
The invention discloses a light source device, a light source generation method and a laser projector with the light source device. The light source device comprises first laser light sources, collimation parts, a reflection part, a first condensation part, a dichroic part, a drive part, a second condensation part, a wavelength conversion part, a third condensation part, a light receiving part and a reflection steering mirror group. According to the light source device, the light source generation method and the laser projector with the light source device, the problem of periodical brightness variation generated by a light source can be effectively solved, and the quality of a projected image can be greatly improved.
Description
Technical field
The present invention relates to Color Laser Projection Technology, particularly a kind of light supply apparatus, light source generation method and comprise the laser projection of light supply apparatus.
Background technology
In recent years, laser projection because its life-span is long, picture brightness is high and the advantage such as rich color and be widely used in multiple occasion, such as television projection, micro projection and some are commercial, education and home entertainment system etc.
As everyone knows, optical frame at least needs to be made up of the light wave of different predominant wavelength, such as, by blue, green and red light wave component.In current prior art, the light source of another kind of wavelength can be generated under normal circumstances using a kind of light source of wavelength as exciting light, then again with the light source time division emission of other wavelength, demonstrate various picture on the projection screen.Such as, the blue laser that can send using blue semiconductor laser, as exciting light, excites green light fluorescent powder to produce green glow.
Fig. 1 is structure and the principle schematic of light supply apparatus in prior art.See Fig. 1, light source here comprises: the first light source 101, secondary light source (not shown in figure 1) and the 3rd light source 116 that wavelength is different.This light supply apparatus comprises: collimating mirror 102, catoptron group 103, first collector lens 104, first dichroic sheet 105, second collector lens 106, fluorescent wheel 107, first deviation mirror 109a, the second deviation mirror 109b, the first catoptron 110a, the second catoptron 110b, the second dichroic sheet 111, the 3rd collector lens 112, optical wand 113, the 4th collector lens 114 and the 3rd deviation mirror 115.
Wherein the first dichroic sheet 105 allow the first light source and the 3rd light source through, secondary light source is reflected, the second dichroic sheet 111 allow the first light source through, secondary light source and the 3rd light source are reflected.
Further, in the subregion of fluorescent wheel 107, be coated with fluorescent powder, when with the first light source 101 for exciting light, be coated with fluorescent powder region produce secondary light source.Because fluorescent wheel is rotatable, the first light source irradiation, to the zones of different of fluorescent wheel 107, can produce the light of different wave length.
In FIG, the light beam with first wave length of the first light source 101 outgoing is that divergent shape is incident to collimating mirror 102, and this beam collimation is become parallel beam by collimating mirror 102; The reflex of catoptron group 103 makes the optical axis 90-degree rotation of this parallel beam, and the first collector lens 104 is assembled, to the first dichroic sheet 105 outgoing the parallel beam after rotation optical axis; The light beam of the first light source, through after the first dichroic sheet 105, is assembled after process through the second collector lens 106, is arrived fluorescent wheel 107.
Fluorescent wheel 107 rotates under the driving of CD-ROM drive motor 117.For the fluorescent wheel 107 in rotation, if when the first light source 101 is incident in phosphor area, excitated fluorescent powder launches the secondary light source with second wave length, this secondary light source is with the direction outgoing in contrast to the first light source incidence direction, after arriving the first dichroic sheet 105, its optical axis is rotated by 90 degrees under reflex, then after the first deviation mirror 109a, the first catoptron 110a, the second deviation mirror 109b, incident to the second dichroic sheet 111; Because the second dichroic sheet 111 pairs of secondary light sources reflect, then light beam directive the 3rd collector lens 112 of secondary light source, finally focuses in optical wand 113.In brief, when the first light source 101 is incident in the phosphor area of fluorescent wheel 107, what optical wand 113 was collected is the secondary light source with second wave length.
If when the first light source 101 is incident in the penetrating region of uncoated fluorescent powder on fluorescent wheel 107, first light source 101 transmission fluorescent wheel 107, through the 4th collector lens 114, second catoptron 110b and the 3rd deviation mirror 115 convergence, reflect and turn to after, transfer to the 3rd collector lens 112 through the second dichroic sheet 111, finally focus in optical wand 113.That is, when the first light source 101 is incident in the penetrating region of fluorescent wheel 107, what optical wand 113 was collected is first light source with first wave length.
There is the 3rd light source 116 of the 3rd wavelength to be parallel to the direction outgoing of the optical axis of the first light source, after the convergence of the second collector lens 106, arrive the first dichroic sheet 105, due to the first dichroic sheet 105 allow the 3rd light source through, then the 3rd light source is again after the first deviation mirror 109a, the first catoptron 110a, the turning to, reflect and turn to of the second deviation mirror 109b, arrives the second dichroic sheet 111; Second dichroic sheet 111, by the optical axis 90-degree rotation of the 3rd light source 116, through the 3rd collector lens 112, finally focuses in optical wand 113.
Based on above structure and principle, by controlling the lighting time of the first light source and the 3rd light source, controlling the rotational speed of fluorescent wheel simultaneously, the first light source can be realized, secondary light source, the 3rd light source timesharing enter in optical wand 113, obtain the hot spot of different colours, and then form display frame.
Although above-mentioned existing light supply apparatus makes laser projection be achieved, can find from Fig. 1, the CD-ROM drive motor 117 of the fluorescent wheel 107 in this light supply apparatus is electric rotating machine.Described electric rotating machine, due to the impact of moment of inertia, can make the motor shaft of described electric rotating machine have swinging around axle of one-period.Therefore, when electric rotating machine starts to rotate, when the motor shaft of this electric rotating machine produces and swings, described fluorescent wheel 107 will be made relative to predetermined design attitude to have the movement of front and back, thus the light source making above-mentioned light supply apparatus produce also can produce periodic brightness change due to the movable of fluorescent wheel 107, therefore cause the periodicity light and shade change of same projected picture and the unevenness of picture brightness, reduce the quality of projected picture.Meanwhile, the system also more complicated of above-mentioned existing light supply apparatus, debugs more difficult.In addition, in light supply apparatus in the prior art, the motor of High Rotation Speed itself is also a potential safety hazard.
As from the foregoing, also there are some above-mentioned problems in light supply apparatus of the prior art, therefore, is necessary to provide one can better light supply apparatus, thus avoids light source to produce the problem of periodically brightness change, improve the quality of projected picture.
Summary of the invention
According to the present invention, provide a kind of light supply apparatus, light source generation method and comprise the laser projection of light supply apparatus, thus can effectively avoid light source to produce the problem of periodically brightness change, greatly improve the quality of projected picture.
According to a kind of light supply apparatus of the present invention, it comprises: the first LASER Light Source, collimating components, reflection part, the first light concentrating components, dichroic parts, driver part, the second light concentrating components, wavelength convert parts, the 3rd light concentrating components, light-receiving member and reflection deviation mirror group; Wherein,
Described first LASER Light Source, for exporting first light beam with first wave length to described collimating components;
Described collimating components, for carrying out collimation process to the first light beam received, obtains parallel beam, and exports described parallel beam to described reflection part;
Described reflection part, for reflexing to described first light concentrating components by described parallel beam;
Described first light concentrating components, exports described dichroic parts to after being assembled by the parallel beam received;
Described driver part, for moving to multiple assigned address according to steering order by described dichroic parts; Wherein, described multiple assigned address at least comprises: primary importance, the second place and the 3rd position;
Described dichroic parts, for beam reflection extremely described second light concentrating components exported by described first light concentrating components; The received light beam exported by described second light concentrating components is transmitted through described light-receiving member; The beam reflection described reflection deviation mirror group exported is to described light-receiving member;
Described second light concentrating components, for received assembled by the light beam of described dichroic member reflects after export described wavelength convert parts to; And export the received light beam exported by described wavelength convert parts to described dichroic parts;
Described wavelength convert parts, for when described dichroic parts are positioned at primary importance, are transmitted through described 3rd light concentrating components by the received light beam with first wave length; When described dichroic parts are positioned at the second place, be excited to export second light beam with second wave length according to received light beam, and export described second light beam to described second light concentrating components; Also for when described dichroic parts are positioned at the 3rd position, be excited to export the 3rd light beam with the 3rd wavelength according to received light beam, and export described 3rd light beam to described second light concentrating components;
Described 3rd light concentrating components, exports described catoptron group to after assembling received light beam;
Described catoptron group, the light beam for exporting described 3rd light concentrating components reflects and exports described dichroic parts to after assembling.
Wherein, described catoptron group comprises: the first catoptron, the second catoptron, the 3rd catoptron, the first deviation mirror, the second deviation mirror and the 3rd deviation mirror;
Described first catoptron, for beam reflection extremely described first deviation mirror exported by described 3rd light concentrating components;
Described first deviation mirror, the light beam for exporting described first catoptron exports described second catoptron to after assembling;
Described second catoptron, for beam reflection extremely described second deviation mirror exported by described first deviation mirror;
Described second deviation mirror, the light beam for exporting described second catoptron exports described 3rd catoptron to after assembling;
Described 3rd catoptron, for beam reflection extremely described 3rd deviation mirror exported by described second deviation mirror;
Described 3rd deviation mirror, the light beam for exporting described 3rd catoptron exports described dichroic parts to after assembling.
Wherein, described driver part is connected with described dichroic parts by driving shaft.
Wherein, described driver part is CD-ROM drive motor.
Wherein, at least comprise in described wavelength convert parts: the printing opacity through hole corresponding with described primary importance, first cavity corresponding with the described second place and second cavity corresponding with described 3rd position; Wherein,
Described printing opacity through hole, has the light beam of first wave length for transmission;
The inwall of described first cavity and the second cavity is provided with highly reflecting films;
The highly reflecting films of described first cavity top are provided with first light transmissive material with predetermined area; The highly reflecting films of described first cavity bottom are coated with the second wave length fluorescent powder for being excited to export second light beam with second wave length;
The highly reflecting films of described second cavity top are provided with second light transmissive material with predetermined area; The highly reflecting films of described second cavity bottom are coated with the 3rd wavelength fluorescent powder for being excited to export the 3rd light beam with the 3rd wavelength.
Wherein, described wavelength convert parts each cavity be arranged with heating radiator.
Wherein, described light-receiving member comprises: the 5th collector lens and optical wand; Wherein,
Described 5th collector lens, for carrying out convergence process to the light beam entering described 5th collector lens;
Described optical wand, carries out the light beam after assembling process for collecting by described 5th collector lens.
Wherein, described light-receiving member is fly's-eye lens.
Present invention also offers a kind of light source generation method, for comprising in the light supply apparatus of the first LASER Light Source, collimating components, reflection part, the first light concentrating components, dichroic parts, driver part, the second light concentrating components, wavelength convert parts, the 3rd light concentrating components, light-receiving member and reflection deviation mirror group, the method comprises:
Carry out collimation by described collimating components to first light beam with first wave length that described first LASER Light Source exports to process, obtain parallel beam;
By described reflection part, described parallel beam is reflexed to described first light concentrating components;
Described dichroic parts are exported to after the parallel beam received being assembled by described first light concentrating components;
According to steering order, described dichroic parts are moved to multiple assigned address by described driver part; Wherein, described multiple assigned address at least comprises: primary importance, the second place and the 3rd position;
When described dichroic parts are positioned at primary importance, the beam reflection with first wave length that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; The light beam of described second light concentrating components to described dichroic member reflects exports described wavelength convert parts to after assembling; The received light beam with first wave length is transmitted through described 3rd light concentrating components by described wavelength convert parts; Described 3rd light concentrating components exports the light beam with first wave length that described wavelength convert parts export to described catoptron group; Described catoptron group reflects the light beam with first wave length that described 3rd light concentrating components exports and exports described dichroic parts to after assembling; The beam reflection with first wave length that described reflection deviation mirror group exports by described dichroic parts is to described light-receiving member;
When described dichroic parts are positioned at the second place, the beam reflection with first wave length that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; The light beam with first wave length of described second light concentrating components to described dichroic member reflects exports described wavelength convert parts to after assembling; Described wavelength convert parts are excited to export second light beam with second wave length according to the received light beam with first wave length, and export described second light beam to described second light concentrating components; Described second light concentrating components exports the light beam with second wave length that described wavelength convert parts export to described dichroic parts; The light beam with second wave length that described second light concentrating components exports is transmitted through described light-receiving member by described dichroic parts;
When described dichroic parts are positioned at the 3rd position, the beam reflection with first wave length that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; The light beam with first wave length of described second light concentrating components to described dichroic member reflects exports described wavelength convert parts to after assembling; Described wavelength convert parts are excited to export the 3rd light beam with the 3rd wavelength according to the received light beam with first wave length, and export described 3rd light beam to described second light concentrating components; The light beam with the 3rd wavelength that described wavelength convert parts export by described second light concentrating components exports described dichroic parts to; Described dichroic parts, be then transmitted through described light-receiving member by the light beam with the 3rd wavelength that described second light concentrating components exports.
Present invention also offers a kind of laser projection, this laser projection comprises: bare engine module, control module, electric power driving module and aforesaid light supply apparatus, wherein,
Described bare engine module is made up of even optical illumination parts, display chip and projection lens;
Described light supply apparatus provides available light source for laser projection;
Described bare engine module receives the light source that described light supply apparatus provides, even optical illumination parts are wherein to the further even light of light source, display chip generates picture under the real-time control of control module, and the picture generated goes out picture to display through projection lens projects again.
As seen from the above technical solution, light supply apparatus provided in the present invention, light source generation method and comprise in the laser projection of light supply apparatus, owing to employing the dichroic parts that can turn to multiple assigned address in above-mentioned light supply apparatus, thus can by the beam reflection by the first LASER Light Source output on described wavelength convert parts, make described wavelength convert parts according to the light beam of the position at described dichroic parts place to the multi-wavelength needed for light-receiving member output, thus different multiple available light source can be formed.Because do not use fluorescent wheel and electric rotating machine in above-mentioned light supply apparatus, and be the use of the dichroic parts that can move to multiple assigned address and the wavelength convert parts that can export the light beam of multi-wavelength according to the position at described dichroic parts place, therefore can effectively avoid causing fluorescent wheel position to move when using electric rotating machine, and then cause light source to produce the problem of periodically brightness change, thus greatly increase the quality of projected picture.Further, relatively simple for structure due to above-mentioned light supply apparatus, therefore also effectively simplifies light-source system, improves and debug efficiency, also solve the potential safety hazard using high-speed rotary motor simultaneously.
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, the accompanying drawing in below describing is only some embodiments of the present invention, for those of ordinary skills, can also obtain other embodiment and accompanying drawing thereof according to these accompanying drawing illustrated embodiments.
Fig. 1 is structure and the principle schematic of light supply apparatus in prior art;
Fig. 2 is structure and the principle schematic of light supply apparatus in the embodiment of the present invention;
Fig. 3 is the structural representation of driver part in the embodiment of the present invention and dichroic parts;
Fig. 4 is dichroic parts in embodiment of the present invention principle schematic when being positioned at primary importance;
Fig. 5 is dichroic parts in embodiment of the present invention principle schematic when being positioned at the second place;
Fig. 6 is dichroic parts in embodiment of the present invention principle schematic when being positioned at the 3rd position.
Fig. 7 is the diagrammatic cross-section of the wavelength convert parts in the embodiment of the present invention;
Fig. 8 is the schematical top view of the wavelength convert parts in the embodiment of the present invention;
Fig. 9 is the schematic diagram of the laser projection in the embodiment of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in more detail.
Fig. 2 is structure and the principle schematic of light supply apparatus in the embodiment of the present invention.As shown in Figure 2, in a particular embodiment of the present invention, described light supply apparatus at least comprises: not shown in the first LASER Light Source 201, collimating components 202, reflection part 203, first light concentrating components 204, dichroic parts 205, driver part 205a(Fig. 2), the second light concentrating components 206, wavelength convert parts 207, the 3rd light concentrating components 208, light-receiving member 209 and reflection deviation mirror group 210;
Wherein, described first LASER Light Source 201, for exporting first light beam with first wave length to described collimating components 202;
Described collimating components 202, for carrying out collimation process to the first light beam received, obtains parallel beam, and exports described parallel beam to described reflection part 203;
Described reflection part 203, for reflexing to described first light concentrating components 204 by described parallel beam;
Described first light concentrating components 204, exports described dichroic parts 205 to after being assembled by the parallel beam received;
Described driver part 205a, for moving to multiple assigned address according to steering order by described dichroic parts 205; Wherein, described multiple assigned address at least comprises: primary importance, the second place and the 3rd position;
Described dichroic parts 205, for beam reflection extremely described second light concentrating components 206 exported by described first light concentrating components 204; The received light beam exported by described second light concentrating components 206 is transmitted through described light-receiving member 209; The beam reflection described reflection deviation mirror group 210 exported is to described light-receiving member 209;
Described second light concentrating components 206, export described wavelength convert parts 207 to after the received light beam reflected by described dichroic parts 205 is assembled, and export the received light beam exported by described wavelength convert parts 207 to described dichroic parts 205;
Described wavelength convert parts 207, for when described dichroic parts 205 are positioned at primary importance, are transmitted through described 3rd light concentrating components 208 by the received light beam with first wave length; When described dichroic parts 205 are positioned at the second place, be excited to export second light beam with second wave length according to received light beam, and export described second light beam to described second light concentrating components 206; Also for when described dichroic parts 205 are positioned at the 3rd position, be excited to export the 3rd light beam with the 3rd wavelength according to received light beam, and export described 3rd light beam to described second light concentrating components 206;
Described 3rd light concentrating components 208, exports described catoptron group 210 to after assembling received light beam;
Described catoptron group 210, the light beam for exporting described 3rd light concentrating components 208 reflects and exports described dichroic parts 205 to after assembling.
Preferably, as shown in Figure 2, in a particular embodiment of the present invention, described catoptron group 210 can comprise: the first catoptron 210a, the second catoptron 210b, the 3rd catoptron 210c, the first deviation mirror 211a, the second deviation mirror 211b and the 3rd deviation mirror 211c;
Described first catoptron 210a, for the beam reflection extremely described first deviation mirror 211a exported by described 3rd light concentrating components 208;
Described first deviation mirror 211a, the light beam for exporting described first catoptron 210a exports described second catoptron 210b to after assembling;
Described second catoptron 210b, for the beam reflection extremely described second deviation mirror 211b exported by described first deviation mirror 211a;
Described second deviation mirror 211b, the light beam for exporting described second catoptron 210b exports described 3rd catoptron 210c to after assembling;
Described 3rd catoptron 210c, for the beam reflection extremely described 3rd deviation mirror 211c exported by described second deviation mirror 211b;
Described 3rd deviation mirror 211c, the light beam for exporting described 3rd catoptron 210c exports described dichroic parts 205 to after assembling.
Fig. 3 is the structural representation of driver part in the embodiment of the present invention and dichroic parts.As shown in Figure 3, in the preferred embodiment, described driver part 205a is connected with dichroic parts 205 by driving shaft 205b, therefore, described dichroic parts 205 can swing under the driving of driver part 205a, thus swing to multiple assigned address.
Preferably, in a particular embodiment of the present invention, described driver part 205a is CD-ROM drive motor.
Fig. 4 is dichroic parts in embodiment of the present invention principle schematic when being positioned at primary importance.Fig. 5 is dichroic parts in embodiment of the present invention principle schematic when being positioned at the second place.Fig. 6 is dichroic parts in embodiment of the present invention principle schematic when being positioned at the 3rd position.
As shown in Figure 4, in the preferred embodiment, when described dichroic parts 205 are positioned at primary importance, the light beam with first wave length that described first light concentrating components 204 exports will be reflexed to described second light concentrating components 206 by described dichroic parts 205;
Described second light concentrating components 206 exports described wavelength convert parts 207 to after assembling the light beam that described dichroic parts 205 reflect;
The received light beam with first wave length is then directly transmitted through described 3rd light concentrating components 208 by described wavelength convert parts 207;
Described 3rd light concentrating components 208 exports the light beam with first wave length that described wavelength convert parts 207 export to described catoptron group 210;
Described catoptron group 210, the light beam with first wave length for exporting described 3rd light concentrating components 208 reflects and exports described dichroic parts 205 to after assembling;
Described dichroic parts 205, then the beam reflection with first wave length described reflection deviation mirror group 210 exported is to described light-receiving member 209.
In brief, when described dichroic parts 205 are positioned at primary importance, what described light-receiving member 209 received is the light beam with first wave length, and therefore, namely the first LASER Light Source 201 now can be used as the first available light source and use.
As shown in Figure 5, in the preferred embodiment, when described dichroic parts 205 are positioned at the second place, the light beam with first wave length that described first light concentrating components 204 exports will be reflexed to described second light concentrating components 206 by described dichroic parts 205;
Described second light concentrating components 206 exports described wavelength convert parts 207 to after assembling the light beam with first wave length that described dichroic parts 205 reflect;
Described wavelength convert parts 207 are excited to export second light beam with second wave length according to the received light beam with first wave length, and export described second light beam to described second light concentrating components 206;
Described second light concentrating components 206 exports the light beam with second wave length that described wavelength convert parts 207 export to described dichroic parts 205;
Described dichroic parts 205, be then transmitted through described light-receiving member 209 by the light beam with second wave length that described second light concentrating components 206 exports.
In brief, when described dichroic parts 205 are positioned at the second place, what described light-receiving member 209 received is second light beam with second wave length, and therefore, namely the first LASER Light Source 201 now can be used as the second available light source and use.
As shown in Figure 6, in the preferred embodiment, when described dichroic parts 205 are positioned at the 3rd position, the light beam with first wave length that described first light concentrating components 204 exports will be reflexed to described second light concentrating components 206 by described dichroic parts 205;
Described second light concentrating components 206 exports described wavelength convert parts 207 to after assembling the light beam with first wave length that described dichroic parts 205 reflect;
Described wavelength convert parts 207 are then excited to export the 3rd light beam with the 3rd wavelength according to the received light beam with first wave length, and export described 3rd light beam to described second light concentrating components 206;
The light beam with the 3rd wavelength that described wavelength convert parts 207 export by described second light concentrating components 206 exports described dichroic parts 205 to;
Described dichroic parts 205, be then transmitted through described light-receiving member 209 by the light beam with the 3rd wavelength that described second light concentrating components 206 exports.
In brief, when described dichroic parts 205 are positioned at the 3rd position, what described light-receiving member 209 received is the 3rd light beam with the 3rd wavelength, and therefore, namely the first LASER Light Source 201 now can be used as the 3rd available light source and use.
Based on above structure and principle known, by controlling the position at described dichroic parts 205 place, the first available light source, the second available light source and the 3rd available light source timesharing can be realized enter in light-receiving member 209, obtain the hot spot of different colours, and then the display frame needed for forming.
Fig. 7 is the diagrammatic cross-section of the wavelength convert parts in the embodiment of the present invention.Fig. 8 is the schematical top view of the wavelength convert parts in the embodiment of the present invention.As shown in Figure 7 and Figure 8, in the preferred embodiment, at least comprise in described wavelength convert parts 207: the printing opacity through hole 70 corresponding with described primary importance, first cavity 71 corresponding with the described second place and second cavity 72 corresponding with described 3rd position;
Wherein, described printing opacity through hole 70, has the light beam of first wave length for transmission;
The inwall of described first cavity 71 and the second cavity 72 is provided with highly reflecting films 73;
The highly reflecting films 73 at described first cavity 71 top are provided with first light transmissive material 710 with predetermined area;
Highly reflecting films 73 bottom described first cavity 71 are coated with the second wave length fluorescent powder 711 for being excited to export second light beam with second wave length;
The highly reflecting films 73 at described second cavity 72 top are provided with second light transmissive material 720 with predetermined area;
Highly reflecting films 73 bottom described second cavity 72 are coated with the 3rd wavelength fluorescent powder 721 for being excited to export the 3rd light beam with the 3rd wavelength.
Preferably, in a particular embodiment of the present invention, in described wavelength convert parts 207, N number of cavity can be set, wherein, N be more than or equal to 2 integer.Such as, the 3rd cavity, the 4th cavity ..., N cavity etc.Preferably, in a particular embodiment of the present invention, the concrete value of N also can pre-determine according to practical situations, does not repeat them here.
The highly reflecting films of the bottom of each cavity are all coated with the fluorescent powder of light beam for being excited to export respective wavelength.The highly reflecting films of each cavity top are also provided with the light transmissive material with predetermined area.The situation with two cavitys shown in the setting of concrete fluorescent powder and the setting of light transmissive material and Fig. 7 and Fig. 8 is similar, can the rest may be inferred, does not therefore repeat them here.
Therefore, when described dichroic parts 205 are moved to different positions in the driving of driver part 205a, on the light transmissive material of the beam reflection that described first light concentrating components 204 can export by described dichroic parts 205 to the printing opacity through hole 70 on described wavelength convert parts 207 or on respective cavities top.
When light beam is reflected on printing opacity through hole 70, this light beam directly will be transmitted through on described 3rd light concentrating components 208 by described printing opacity through hole 70, the light beam that this is then had first wave length by described 3rd light concentrating components 208 exports described catoptron group 210 to, and export described dichroic parts 205 to by the reflection of described catoptron group 210 with after assembling, then by described dichroic parts 205, this is had the beam reflection of first wave length to described light-receiving member 209;
When light beam is reflected on the light transmissive material on respective cavities top, this light beam will be transmitted in respective cavities, be irradiated on the fluorescent powder bottom respective cavities, fluorescent powder is excited and export the light beam of being excited of respective wavelength; Described light beam of being excited, after the reflection of the highly reflecting films on respective cavities inwall, transmits respective cavities by from the light transmissive material on respective cavities top, then exports described second light concentrating components 206 to; Described second light concentrating components 206 then exports the light beam that described wavelength convert parts 207 export to described dichroic parts 205, and is transmitted through described light-receiving member 209 by described dichroic parts 205.
Such as, primary importance, the second place and the 3rd position is only included with described multiple assigned address, and be only provided with two cavitys in described wavelength convert parts 207: the first cavity 71 and the second cavity 72, and primary importance is corresponding with printing opacity through hole 70, the second place and the first cavity 71 is corresponding, the 3rd position relative with the second cavity 72 should be example:
When described dichroic parts 205 are moved to primary importance in the driving of driver part 205a, the beam reflection with first wave length that described first light concentrating components 204 can export by described dichroic parts 205 on the printing opacity through hole 70 on described wavelength convert parts 207, thus is directly transmitted through described 3rd light concentrating components 208 through described printing opacity through hole 70; The light beam that this then can be had first wave length by described 3rd light concentrating components 208 exports described catoptron group 210 to; Described catoptron group 210 reflects the light beam that this has first wave length and exports described dichroic parts 205 to after assembling; This is had the beam reflection of first wave length to described light-receiving member 209 by described dichroic parts 205, as the first available light source.
When described dichroic parts 205 are moved to the second place in the driving of driver part 205a, the beam reflection with first wave length that described first light concentrating components 204 can export by described dichroic parts 205 is on the first light transmissive material 710 on the first cavity 71 top on described wavelength convert parts 207, thus be transmitted in the first cavity 71, be irradiated on the second wave length fluorescent powder 711 bottom the first cavity 71, make second wave length fluorescent powder 711 be excited and export second light beam with second wave length; Described second light beam, after the highly reflecting films 73 on the first cavity 71 inwall reflect, transmits the first cavity 71 from the first light transmissive material 710 the first cavity 71 top, then exports described second light concentrating components 206 to; Described this light beam with second wave length of second light concentrating components 206 exports described dichroic parts 205 to; The light beam that this is had second wave length by described dichroic parts 205 is transmitted through described light-receiving member 209, as the second available light source.
In like manner, when described dichroic parts 205 are moved to the 3rd position in the driving of driver part 205a, the beam reflection with first wave length that described first light concentrating components 204 can export by described dichroic parts 205 is on the second light transmissive material 720 on the second cavity 72 top on described wavelength convert parts 207, thus be transmitted in the second cavity 72, be irradiated on the 3rd wavelength fluorescent powder 721 bottom the second cavity 72, make the 3rd wavelength fluorescent powder 721 be excited and export the 3rd light beam with the 3rd wavelength; Described 3rd light beam, after the highly reflecting films 73 on the second cavity 72 inwall reflect, transmits the second cavity 72 from the second light transmissive material 720 the second cavity 72 top, then exports described second light concentrating components 206 to; This light beam with the 3rd wavelength of described second light concentrating components 206 exports described dichroic parts 205 to; The light beam that this is had the 3rd wavelength by described dichroic parts 205 is transmitted through described light-receiving member 209, as the 3rd available light source.
The like, if described multiple assigned address comprises N number of position, then be provided with in described wavelength convert parts 207 and described N number of position difference printing opacity through hole and (N-1) individual cavity one to one, then when described dichroic parts 205 are moved to N number of diverse location in the driving of driver part 205a, described light-receiving member 209 can receive the light beam of N kind different wave length.Detailed process does not repeat them here.
Preferably, in a particular embodiment of the present invention, under each cavity of described wavelength convert parts 207, heating radiator 74 is also provided with, for dispelling the heat for whole wavelength convert parts 207.
In addition, as shown in Fig. 2, Fig. 4, Fig. 5 and Fig. 6, in the preferred embodiment, described light-receiving member 209 can comprise: the 5th collector lens 209a and optical wand 209b;
Wherein, described 5th collector lens 209a, for carrying out convergence process to the light beam entering described 5th collector lens 209a;
Described optical wand 209b, carries out the light beam after assembling process for collecting by described 5th collector lens 209a.
Preferably, in a particular embodiment of the present invention, described light-receiving member 209 can be: fly's-eye lens; Described fly's-eye lens, for receiving and collecting the light beam entering described fly's-eye lens.
According to the structure of above-mentioned light supply apparatus, in the inventive solutions, owing to employing the dichroic parts that can turn to multiple different assigned address in above-mentioned light supply apparatus, thus can by the beam reflection by the first LASER Light Source output on the printing opacity through hole of described wavelength convert parts or the light transmissive material of different cavity, make the different cavitys of described wavelength convert parts be excited to export the light beam of different wave length, thus form different available light source.Such as, when the assigned address of dichroic parts be primary importance, the second place and the 3rd position time, corresponding 3 available light source can be obtained: the first available light source, the second available light source and the 3rd available light source.And when multiple assigned addresses of described dichroic parts are N number of position, then can obtain corresponding N number of available light source.Owing to not needing to use fluorescent wheel and electric rotating machine in above-mentioned light supply apparatus, and be the use of the dichroic parts that can move to multiple assigned address.Therefore efficiently avoid when using electric rotating machine causes fluorescent wheel position to move, and then causes light source to produce the problem of periodically brightness change, so greatly can improve the quality of projection.And above-mentioned light supply apparatus relatively simple for structure, therefore also effectively simplifies light-source system, improve and debug efficiency, also solve the potential safety hazard using high-speed rotary motor simultaneously.
In addition, in the inventive solutions, also proposed a kind of light source generation method, for comprising in the light supply apparatus of the first LASER Light Source, collimating components, reflection part, the first light concentrating components, dichroic parts, driver part, the second light concentrating components, wavelength convert parts, the 3rd light concentrating components, light-receiving member and reflection deviation mirror group, the method comprises:
Carry out collimation by described collimating components to first light beam with first wave length that described first LASER Light Source exports to process, obtain parallel beam;
By described reflection part, described parallel beam is reflexed to described first light concentrating components;
Described dichroic parts are exported to after the parallel beam received being assembled by described first light concentrating components;
According to steering order, described dichroic parts are moved to multiple assigned address by described driver part; Wherein, described multiple assigned address at least comprises: primary importance, the second place and the 3rd position;
When described dichroic parts are positioned at primary importance, the beam reflection with first wave length that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; The light beam of described second light concentrating components to described dichroic member reflects exports described wavelength convert parts to after assembling; The received light beam with first wave length is transmitted through described 3rd light concentrating components by described wavelength convert parts; Described 3rd light concentrating components exports the light beam with first wave length that described wavelength convert parts export to described catoptron group; Described catoptron group reflects the light beam with first wave length that described 3rd light concentrating components exports and exports described dichroic parts to after assembling; The beam reflection with first wave length that described reflection deviation mirror group exports by described dichroic parts is to described light-receiving member;
When described dichroic parts are positioned at the second place, the beam reflection with first wave length that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; The light beam with first wave length of described second light concentrating components to described dichroic member reflects exports described wavelength convert parts to after assembling; Described wavelength convert parts are excited to export second light beam with second wave length according to the received light beam with first wave length, and export described second light beam to described second light concentrating components; Described second light concentrating components exports the light beam with second wave length that described wavelength convert parts export to described dichroic parts; The light beam with second wave length that described second light concentrating components exports is transmitted through described light-receiving member by described dichroic parts;
When described dichroic parts are positioned at the 3rd position, the beam reflection with first wave length that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; The light beam with first wave length of described second light concentrating components to described dichroic member reflects exports described wavelength convert parts to after assembling; Described wavelength convert parts are excited to export the 3rd light beam with the 3rd wavelength according to the received light beam with first wave length, and export described 3rd light beam to described second light concentrating components; The light beam with the 3rd wavelength that described wavelength convert parts export by described second light concentrating components exports described dichroic parts to; Described dichroic parts, be then transmitted through described light-receiving member by the light beam with the 3rd wavelength that described second light concentrating components exports.
In addition, in the inventive solutions, also proposed a kind of laser projection.
Fig. 9 is the schematic diagram of the laser projection in the embodiment of the present invention.As shown in Figure 9, the laser projection in the specific embodiment of the invention comprises: bare engine module 901, control module 903, electric power driving module 902 and foregoing light supply apparatus 900;
Wherein, described bare engine module 901 is made up of even optical illumination parts, display chip and projection lens;
Described light supply apparatus 900 provides available light source for laser projection;
Described bare engine module 901 receives the light source that described light supply apparatus 900 provides, even optical illumination parts are wherein to the further even light of light source, display chip generates picture under the real-time control of control module 903, and the picture generated goes out picture to display through projection lens projects again;
Described electric power driving module 902 provides driving electric energy for described light supply apparatus 900 and display chip.
In summary, light supply apparatus provided in the present invention, light source generation method and comprise in the laser projection of light supply apparatus, owing to employing the dichroic parts that can turn to multiple assigned address in above-mentioned light supply apparatus, thus can by the beam reflection by the first LASER Light Source output on described wavelength convert parts, make described wavelength convert parts according to the light beam of the position at described dichroic parts place to the multi-wavelength needed for light-receiving member output, thus different multiple available light source can be formed.Because do not use fluorescent wheel and electric rotating machine in above-mentioned light supply apparatus, and be the use of the dichroic parts that can move to multiple assigned address and the wavelength convert parts that can export the light beam of multi-wavelength according to the position at described dichroic parts place, therefore can effectively avoid causing fluorescent wheel position to move when using electric rotating machine, and then cause light source to produce the problem of periodically brightness change, thus greatly increase the quality of projected picture.And above-mentioned light supply apparatus relatively simple for structure, therefore also effectively simplifies light-source system, improve and debug efficiency, also solve the potential safety hazard using high-speed rotary motor simultaneously.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a light supply apparatus, it is characterized in that, this light supply apparatus comprises: the first LASER Light Source, collimating components, reflection part, the first light concentrating components, dichroic parts, driver part, the second light concentrating components, wavelength convert parts, the 3rd light concentrating components, light-receiving member and reflection deviation mirror group; Wherein,
First LASER Light Source is used for exporting first light beam with first wave length to described collimating components;
Described collimating components, for carrying out collimation process to the first light beam received, obtains parallel beam, and exports described parallel beam to described reflection part;
Described reflection part, for reflexing to the first light concentrating components by described parallel beam;
First light concentrating components is used for exporting described dichroic parts to by after the parallel beam received convergence;
Described driver part, for moving to multiple assigned address according to steering order by described dichroic parts; Wherein, described multiple assigned address at least comprises: primary importance, the second place and the 3rd position;
Described dichroic parts, for beam reflection to the second light concentrating components exported by the first light concentrating components; The received light beam exported by the second light concentrating components is transmitted through described light-receiving member; The beam reflection described reflection deviation mirror group exported is to described light-receiving member;
Second light concentrating components, for received assembled by the light beam of described dichroic member reflects after export described wavelength convert parts to; Export the received light beam exported by described wavelength convert parts to described dichroic parts;
Described wavelength convert parts, for when described dichroic parts are positioned at primary importance, are transmitted through the 3rd light concentrating components by the received light beam with first wave length; When described dichroic parts are positioned at the second place, are excited to export second light beam with second wave length according to received light beam, and export the second light beam to second light concentrating components; Also for when described dichroic parts are positioned at the 3rd position, be excited to export the 3rd light beam with the 3rd wavelength according to received light beam, and export the 3rd light beam to second light concentrating components;
Described wavelength convert parts at least comprise corresponding with primary importance, that transmission has the light beam of first wave length printing opacity through hole, the first cavity that is corresponding with the second place, that be excited to export second light beam with second wave length, and the second cavity that is corresponding with the 3rd position, that be excited to export the 3rd light beam with the 3rd wavelength
3rd light concentrating components, exports described catoptron group to after assembling received light beam;
Described catoptron group, the light beam for exporting the 3rd light concentrating components reflects and exports described dichroic parts to after assembling.
2. light supply apparatus as claimed in claim 1, it is characterized in that, described catoptron group comprises: the first catoptron, the second catoptron, the 3rd catoptron, the first deviation mirror, the second deviation mirror and the 3rd deviation mirror;
First catoptron is used for beam reflection to the first deviation mirror exported by the 3rd light concentrating components;
First deviation mirror exports the second catoptron to after assembling for the light beam exported described first catoptron;
Second catoptron is used for beam reflection to the second deviation mirror exported by the first deviation mirror;
Second deviation mirror exports the 3rd catoptron to after assembling for the light beam exported the second catoptron;
The beam reflection that 3rd catoptron is used for the second deviation mirror to export is to the 3rd deviation mirror;
3rd deviation mirror exports dichroic parts to after assembling for the light beam exported the 3rd catoptron.
3. light supply apparatus as claimed in claim 1, is characterized in that:
Described driver part is connected with described dichroic parts by driving shaft.
4. the light supply apparatus as described in claim 1 or 3, is characterized in that:
Described driver part is CD-ROM drive motor.
5. light supply apparatus as claimed in claim 1, is characterized in that,
Described printing opacity through hole, has the light beam of first wave length for transmission;
The inwall of the first cavity and the second cavity is provided with highly reflecting films;
The highly reflecting films of the first cavity top are provided with first light transmissive material with predetermined area; The highly reflecting films of the first cavity bottom are coated with the second wave length fluorescent powder for being excited to export second light beam with second wave length;
The highly reflecting films of the second cavity top are provided with second light transmissive material with predetermined area; The highly reflecting films of the second cavity bottom are coated with the 3rd wavelength fluorescent powder for being excited to export the 3rd light beam with the 3rd wavelength.
6. the light supply apparatus as described in claim 1 or 5, is characterized in that:
Each cavitys of described wavelength convert parts be arranged with heating radiator.
7. light supply apparatus as claimed in claim 1, it is characterized in that, described light-receiving member comprises: the 5th collector lens and optical wand; Wherein,
5th collector lens, for carrying out convergence process to the light beam entering the 5th collector lens;
Described optical wand, carries out the light beam after assembling process for collecting by described 5th collector lens.
8. light supply apparatus as claimed in claim 1, is characterized in that:
Described light-receiving member is fly's-eye lens.
9. a light source generation method, it is characterized in that, for comprising the first LASER Light Source, collimating components, reflection part, first light concentrating components, dichroic parts, driver part, second light concentrating components, wavelength convert parts, 3rd light concentrating components, in the light supply apparatus of light-receiving member and reflection deviation mirror group, described wavelength convert parts at least comprise corresponding with primary importance, transmission has the printing opacity through hole of the light beam of first wave length, corresponding with the second place, be excited to export the first cavity of second light beam with second wave length, and it is corresponding with the 3rd position, be excited to export the second cavity of the 3rd light beam with the 3rd wavelength, the method comprises:
Carry out collimation by described collimating components to first light beam with first wave length that the first LASER Light Source exports to process, obtain parallel beam;
By described reflection part, described parallel beam is reflexed to the first light concentrating components;
Described dichroic parts are exported to after the parallel beam received being assembled by the first light concentrating components;
According to steering order, described dichroic parts are moved to multiple assigned address by described driver part; Wherein, described multiple assigned address at least comprises: primary importance, the second place and the 3rd position;
When described dichroic parts are positioned at primary importance, beam reflection to the second light concentrating components of first wave length that what the first light concentrating components exported by described dichroic parts have; The light beam of the second light concentrating components to dichroic member reflects exports described wavelength convert parts to after assembling; The received light beam with first wave length is transmitted through the 3rd light concentrating components by described wavelength convert parts; 3rd light concentrating components exports the light beam with first wave length that described wavelength convert parts export to described catoptron group; Described catoptron group reflects the light beam with first wave length that the 3rd light concentrating components exports and exports described dichroic parts to after assembling; The beam reflection with first wave length that described reflection deviation mirror group exports by described dichroic parts is to described light-receiving member;
When described dichroic parts are positioned at the second place, beam reflection to the second light concentrating components of first wave length that what the first light concentrating components exported by described dichroic parts have; The light beam with first wave length of the second light concentrating components to described dichroic member reflects exports described wavelength convert parts to after assembling; Described wavelength convert parts are excited to export second light beam with second wave length according to the received light beam with first wave length, and export the second light beam to second light concentrating components; Second light concentrating components exports the light beam with second wave length that described wavelength convert parts export to described dichroic parts; The light beam with second wave length that second light concentrating components exports by described dichroic parts is transmitted through described light-receiving member;
When described dichroic parts are positioned at the 3rd position, beam reflection to the second light concentrating components of first wave length that what the first light concentrating components exported by described dichroic parts have; The light beam with first wave length of the second light concentrating components to described dichroic member reflects exports described wavelength convert parts to after assembling; Described wavelength convert parts are excited to export the 3rd light beam with the 3rd wavelength according to the received light beam with first wave length, and export described 3rd light beam to second light concentrating components; The light beam with the 3rd wavelength that described wavelength convert parts export by the second light concentrating components exports described dichroic parts to; Described dichroic parts, be then transmitted through described light-receiving member by the light beam with the 3rd wavelength that the second light concentrating components exports.
10. a laser projection, is characterized in that, this laser projection comprises: bare engine module, control module, electric power driving module and according to the light supply apparatus one of claim 1 to 8 Suo Shu, wherein,
Described bare engine module is made up of even optical illumination parts, display chip and projection lens;
Described light supply apparatus provides available light source for laser projection;
Described bare engine module receives the light source that described light supply apparatus provides, even optical illumination parts are wherein to the further even light of light source, display chip generates picture under the real-time control of control module, and the picture generated goes out picture to display through projection lens projects again.
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| CN201310089522.9A CN103186025B (en) | 2013-03-19 | 2013-03-19 | Light source device, light source generation method and laser projector with light source device |
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| CN201310089522.9A CN103186025B (en) | 2013-03-19 | 2013-03-19 | Light source device, light source generation method and laser projector with light source device |
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| CN107315311B (en) * | 2017-08-11 | 2019-09-20 | 青岛海信电器股份有限公司 | Light source module group and laser projection |
| CN110082998A (en) * | 2018-01-25 | 2019-08-02 | 深圳光峰科技股份有限公司 | Laser Multiplexing apparatus and display equipment |
| CN108535944B (en) * | 2018-04-16 | 2021-04-13 | 成都九天光学技术有限公司 | Laser light source and control method thereof |
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| CN102217107A (en) * | 2008-11-21 | 2011-10-12 | 吉可多公司 | Light emitting diode module with three part color matching |
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| JP2000347287A (en) * | 1999-06-04 | 2000-12-15 | Sanyo Electric Co Ltd | Projection type video display device |
| US20110134317A1 (en) * | 2006-04-28 | 2011-06-09 | Yong-Jing Wang | Image generation system producing compound images |
| JP5842162B2 (en) * | 2011-03-23 | 2016-01-13 | パナソニックＩｐマネジメント株式会社 | Light source device and image display device using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102217107A (en) * | 2008-11-21 | 2011-10-12 | 吉可多公司 | Light emitting diode module with three part color matching |
| CN102869914A (en) * | 2010-03-04 | 2013-01-09 | 吉可多公司 | Efficient LED-based illumination modules with high color rendering index |
| CN102540679A (en) * | 2012-02-22 | 2012-07-04 | 海信集团有限公司 | Light source device, light source generation method and laser projector comprising light source device |
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