CN104749867A - Light source device, light source generating method and laser projector including light source device - Google Patents
Light source device, light source generating method and laser projector including light source device Download PDFInfo
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- CN104749867A CN104749867A CN201510133407.6A CN201510133407A CN104749867A CN 104749867 A CN104749867 A CN 104749867A CN 201510133407 A CN201510133407 A CN 201510133407A CN 104749867 A CN104749867 A CN 104749867A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2053—Intensity control of illuminating light
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/106—Beam splitting or combining systems for splitting or combining a plurality of identical beams or images, e.g. image replication
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
Abstract
The invention discloses a light source device, a light source generating method and a laser projector including the light source device. The light source provided by the invention comprises a first laser source, a collimation part, a reflection part, a first light-gathering part, a dichroic part, a driving part, a second light-gathering part, a wavelength conversion part, a fourth light source, a third light-gathering part and a light receiving part. According to the light source device, the light source generating method and the laser projector including the light source device provided by the invention, the problem that the periodic brightness variation is caused by a light source can be effectively prevented, and the quality of a projection screen can be greatly improved.
Description
The divisional application of the Chinese invention patent application 201310089537.5 that to be the denomination of invention proposed on 03 19th, 2013 be the application " light supply apparatus, light source generation method and comprise the laser projection of light supply apparatus ".
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 4th light source, the 3rd light concentrating components and light-receiving member;
Wherein, described first LASER Light Source, for exporting the first light beam 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 and the second place;
Described dichroic parts, for when being positioned at primary importance, the beam reflection exported by described first light concentrating components is to described second light concentrating components; The light beam that described second light concentrating components exports is transmitted through described light-receiving member; The beam reflection exported by described 3rd light concentrating components is to described light-receiving member; Also for when in the second position, by the beam reflection of described first light concentrating components output to described second light concentrating components; The light beam that described second light concentrating components exports is transmitted through described light-receiving member;
Described second light concentrating components, to received assembled by the light beam of described dichroic member reflects after export described wavelength convert parts to, and export the light beam that described wavelength convert parts export to described dichroic parts;
Described wavelength convert parts, for when described dichroic parts are positioned at primary importance, are excited output second light beam 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 second place, be excited output the 3rd light beam according to received light beam, and export described 3rd light beam to described second light concentrating components;
Described 4th light source, for exporting the 4th light beam to described 3rd light concentrating components;
Described 3rd light concentrating components, exports described dichroic parts to after being assembled by described 4th light beam.
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: with the accessibility multiple assigned address one_to_one corresponding of described dichroic parts and mutually independently multiple cavity and be wrapped in the fluorescent powder reflector of described multiple cavity surrounding; Wherein,
The inwall of each cavity is provided with highly reflecting films, the highly reflecting films of each cavity bottom is all coated with the fluorescent powder of light beam for being excited to export respective wavelength, the highly reflecting films of each cavity top is provided with the light transmissive material with predetermined area.
Wherein, described multiple cavity at least comprises: the first cavity and the second cavity.
Wherein, described wavelength convert parts multiple cavitys be arranged with heating radiator.
Wherein, when described multiple assigned address only includes primary importance and the second place, and when described multiple cavity only includes the first cavity and the second cavity:
Described driver part is the electromagnet be connected with power supply;
Described dichroic parts are provided with a magnet.
Wherein, described light-receiving member comprises: the 5th collector lens and optical wand; Wherein,
Described 5th collector lens, carries out convergence process for treating the light beam entering described light-receiving member;
Described optical wand, carries out the light beam after assembling process for collecting by described 5th collector lens.
A kind of light source generation method is also proposed in the present invention, 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 4th light source, the 3rd light concentrating components and light-receiving member, the method comprises:
Carry out collimation by described collimating components to the first light beam 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 and the second place;
When described dichroic parts are positioned at primary importance, the beam reflection that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; Described second light concentrating components exports described wavelength convert parts to after assembling the light beam by described dichroic member reflects; Described wavelength convert parts are excited output second light beam according to received light beam, and export described second light beam to described second light concentrating components; Described second light concentrating components exports described second light beam to described dichroic parts; Described second light beam is transmitted through described light-receiving member by described dichroic parts;
Meanwhile, described 4th light source exports the 4th light beam to described 3rd light concentrating components; Described 3rd light concentrating components exports described dichroic parts to after being assembled by described 4th light beam; Described dichroic parts are by described 4th beam reflection extremely described light-receiving member;
When described dichroic parts are positioned at the second place, the beam reflection that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; Described second light concentrating components exports described wavelength convert parts to after assembling the light beam by described dichroic member reflects; Described wavelength convert parts are excited output the 3rd light beam according to received light beam, and export described 3rd light beam to described second light concentrating components; Described second light concentrating components exports described 3rd light beam to described dichroic parts; Described 3rd light beam is transmitted through described light-receiving member by described dichroic parts.
Also proposed a kind of laser projection in the present invention, 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 different assigned address in above-mentioned light supply apparatus, thus can by the beam reflection by the first LASER Light Source output on the light transmissive material of the different cavitys of described wavelength convert parts, make the different cavitys of described wavelength convert parts be excited to export the light beam of different wave length, thus form different multiple available light source.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, 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.
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 the diagrammatic cross-section of the wavelength convert parts in the embodiment of the present invention;
Fig. 7 is the schematical top view of the wavelength convert parts in the embodiment of the present invention;
Fig. 8 a is the structural representation one of driver part in another embodiment of the present invention and dichroic parts;
Fig. 8 b is the structural representation two of driver part in another embodiment of the present invention and dichroic parts;
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: the first LASER Light Source 201, collimating components 202, reflection part 203, first light concentrating components 204, dichroic parts 205, driver part 205a (not shown in Fig. 2), the second light concentrating components 206, wavelength convert parts 207, the 4th light source 209, the 3rd light concentrating components 208 and light-receiving member 210.4th light source 209 can be LED light source, semiconductor laser light resource.
Wherein, described first LASER Light Source 201, for exporting the first light beam to described collimating components 202.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.
Reflection part 203, for reflexing to described first light concentrating components 204 by described parallel beam; First light concentrating components 204, exports described dichroic parts 205 to after being assembled by the parallel beam received.
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 and the second place.
Described dichroic parts 205, for when being positioned at primary importance, the beam reflection exported by described first light concentrating components 204 is to described second light concentrating components 206; The light beam that described second light concentrating components 206 exports is transmitted through described light-receiving member 210; The beam reflection exported by described 3rd light concentrating components 208 is to described light-receiving member 210; Also for when in the second position, the beam reflection exported by described first light concentrating components 204 is to described second light concentrating components 206; The light beam that described second light concentrating components 206 exports is transmitted through described light-receiving member 210.
Described second light concentrating components 206, exports described wavelength convert parts 207 to after assembling, and export the light beam that described wavelength convert parts 207 export to described dichroic parts 205 to the received light beam reflected by described dichroic parts 205; Wavelength convert parts 207, for when described dichroic parts 205 are positioned at primary importance, are excited output second light beam 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 second place, be excited output the 3rd light beam according to received light beam, and export described 3rd light beam to described second light concentrating components 206.
Described 4th light source 209, for exporting the 4th light beam to described 3rd light concentrating components 208; 3rd light concentrating components 208, exports described dichroic parts 205 to after being assembled by described 4th light beam.
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.
As shown in Figure 4, in the preferred embodiment, when described dichroic parts 205 are positioned at primary importance, the light beam that described first light concentrating components 204 exports will be reflexed to described second light concentrating components 206 by described dichroic parts 205, export described wavelength convert parts 207 to after then being assembled by described second light concentrating components 206; Described wavelength convert parts 207 are then excited output second light beam according to received light beam, and export described second light beam to described second light concentrating components 206; Described second light concentrating components 206 exports the second light beam that described wavelength convert parts 207 export to described dichroic parts 205; The second light beam that described second light concentrating components 206 exports is transmitted through described light-receiving member 210 by described dichroic parts 205.In brief, when described dichroic parts 205 are positioned at primary importance, what described light-receiving member 210 was collected is second available light source with second wave length.
As shown in Figure 5, in the preferred embodiment, when described dichroic parts 205 are positioned at the second place, the light beam that described first light concentrating components 204 exports will be reflexed to described second light concentrating components 206 by described dichroic parts 205, export described wavelength convert parts 207 to after then being assembled by described second light concentrating components 206; Described wavelength convert parts 207 are then excited output the 3rd light beam according to received light beam, and export described 3rd light beam to described second light concentrating components 206; The 3rd light beam that described wavelength convert parts 207 export by described second light concentrating components 206 exports described dichroic parts 205 to; The 3rd light beam that described second light concentrating components 206 exports is transmitted through described light-receiving member 210 by described dichroic parts 205.In brief, when described dichroic parts 205 are positioned at the second place, what described light-receiving member 210 was collected is the 3rd available light source with the 3rd wavelength.
In addition, when described dichroic parts 205 are positioned at primary importance, described 4th light source 209 can export the 4th light beam to described 3rd light concentrating components 208, described 3rd light concentrating components 208 exports described dichroic parts 205 to after described 4th light beam can being assembled, and the 4th beam reflection that described 3rd light concentrating components 208 then also can export by described dichroic parts 205 is to described light-receiving member 210.Therefore, when described dichroic parts 205 are positioned at primary importance, described light-receiving member 210 also can collect the 4th available light source with the 4th wavelength.
Preferably, when described dichroic parts 205 are positioned at the second place, to have there occurs the change in angle relative to primary importance due to the current residing second place of described dichroic parts 205, therefore, described 4th light source 209 now no longer will export the 4th light beam.
Based on above structure and principle known, by controlling the lighting time of the first light source and the 4th light source, control the position at described dichroic parts 205 place simultaneously, can realize the second available light source, the 3rd available light source and the 4th available light source timesharing enters in light-receiving member 210, obtain the hot spot of different colours, and then the display frame needed for forming.
Fig. 6 is the diagrammatic cross-section of the wavelength convert parts in the embodiment of the present invention.Fig. 7 is the schematical top view of the wavelength convert parts in the embodiment of the present invention.As shown in Figure 6 and Figure 7, in the preferred embodiment, at least comprise in described wavelength convert parts 207: with the accessibility multiple assigned address one_to_one corresponding of described dichroic parts 205 and mutually independently multiple cavity and be wrapped in the fluorescent powder reflector 64 of described multiple cavity surrounding;
Wherein, the inwall of each cavity is provided with highly reflecting films 63, the highly reflecting films of each cavity bottom are all coated with the fluorescent powder of light beam for being excited to export respective wavelength, (such as, as shown in Figure 6, highly reflecting films bottom first cavity 61 are coated with the second wave length fluorescent powder 611 for being excited to export second light beam with second wave length, highly reflecting films bottom second cavity 62 are then coated with the 3rd wavelength fluorescent powder 621 for being excited to export the 3rd light beam with the 3rd wavelength, the rest may be inferred), the highly reflecting films of each cavity top are provided with the light transmissive material with predetermined area.
Preferably, as shown in Figure 6, in a particular embodiment of the present invention, described multiple cavity at least comprises: the first cavity 61 and the second cavity 62.
Therefore, when described dichroic parts 205 are moved to different positions in the driving of driver part 205a, the beam reflection that described first light concentrating components 204 can export by described dichroic parts 205 is to described second light concentrating components 206, and make reflected light beam by projecting on the light transmissive material on the respective cavities top on described wavelength convert parts 207 after described second light concentrating components 206, thus be transmitted in respective cavities, be irradiated on the fluorescent powder bottom respective cavities, fluorescent powder be excited and export the light beam of being excited of respective wavelength; Described light beam of being excited, after the highly reflecting films reflection on respective cavities inwall, transmits respective cavities from the light transmissive material respective cavities top, then exports described dichroic parts 205 to by described second light concentrating components 206; The light beam of this output then can be transmitted through described light-receiving member 210 by described dichroic parts 205.
Such as, only include primary importance and the second place with described multiple assigned address, and described multiple cavity only includes the first cavity 61 and the second cavity 62, and primary importance is corresponding with the first cavity 61, the second place relative with the second cavity 62 should be example:
When described dichroic parts 205 are moved to primary importance in the driving of driver part 205a, the beam reflection that described first light concentrating components 204 can export by described dichroic parts 205, and after making the convergence of reflected light beam by described second light concentrating components 206, project on the light transmissive material 610 on the first cavity 61 top on described wavelength convert parts 207, thus be transmitted in the first cavity 61, be irradiated on the second wave length fluorescent powder 611 bottom the first cavity 61, second wave length fluorescent powder 611 is made to be excited and to export second light beam with second wave length, described second light beam, after the highly reflecting films 63 on the first cavity 61 inwall reflect, transmits the first cavity 61 from the light transmissive material 610 the first cavity 61 top, then exports described dichroic parts 205 to by described second light concentrating components 206, second light beam of this output then can be transmitted through described light-receiving member 210 by described dichroic parts 205.
In like manner, when described dichroic parts 205 are moved to the second place in the driving of driver part 205a, the current residing second place of described dichroic parts 205 there occurs the change in angle relative to primary importance, thus corresponding change the position of the hot spot that the light beam reflected by described dichroic parts 205 is formed also will be occurred.Now, the beam reflection that described first light concentrating components 204 can export by described dichroic parts 205, and after making the convergence of reflected light beam by described second light concentrating components 206, project on the light transmissive material 620 on the second cavity 62 top on described wavelength convert parts 207 (and being no longer on the light transmissive material 610 on the first cavity 61 top), thus be transmitted in the second cavity 62, be irradiated on the 3rd wavelength fluorescent powder 621 bottom the second cavity 62, make the 3rd wavelength fluorescent powder 621 be excited and export the 3rd light beam with the 3rd wavelength; Described 3rd light beam, after the highly reflecting films 63 on the second cavity 62 inwall reflect, transmits the second cavity 62 from the light transmissive material 620 the second cavity 62 top, then exports described dichroic parts 205 to by described second light concentrating components 206; 3rd light beam of this output then can be transmitted through described light-receiving member 210 by described dichroic parts 205.
The like, when described multiple assigned address comprises N number of position, and described multiple cavity is when only including the N number of cavity corresponding with described N number of position, when described dichroic parts 205 are moved to N number of diverse location in the driving of driver part 205a, described light-receiving member 210 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, described N be more than or equal to 2 natural number, the concrete value of N also can pre-determine according to practical situations, does not repeat them here.
Preferably, in a particular embodiment of the present invention, under multiple cavitys of described wavelength convert parts 207, heating radiator 65 is also provided with, for dispelling the heat for whole wavelength convert parts 207.
In addition, in the preferred embodiment, when described multiple assigned address only includes primary importance and the second place, and described multiple cavity is when only including the first cavity 61 and the second cavity 62, described driver part 205a may not be CD-ROM drive motor, but the electromagnet be connected with power supply (such as, solenoid), a magnet can be set on described dichroic parts 205 simultaneously.
Preferably, in a particular embodiment of the present invention, described magnet can be arranged on any one end of described dichroic parts 205; Or described magnet also can be arranged on the close driving shaft 205b place at the middle part of described dichroic parts 205.
Such as, Fig. 8 a is the structural representation one of driver part in another embodiment of the present invention and dichroic parts.As shown in Figure 8 a, in the preferred embodiment, described driver part 205a is the electromagnet (such as, solenoid) be connected with power supply; Described dichroic parts 205 are provided with a magnet 205c near one end of described driver part 205a.
Fig. 8 b is the structural representation two of driver part in another embodiment of the present invention and dichroic parts.As shown in Figure 8 b, in the preferred embodiment, described driver part 205a is the electromagnet (such as, solenoid) be connected with power supply, and the magnet on described dichroic parts 205 is arranged on the close driving shaft 205b place at the middle part of described dichroic parts 205.Now, this magnet only need move a less distance described dichroic parts 205 can be driven to move to primary importance and the second place under the acting force of electromagnet.
Because the two ends being arranged on the magnet 205c on described dichroic parts 205 have different magnetic poles, and after described solenoid 205a energising, the two ends of solenoid 205a also will produce corresponding magnetic pole, and the polarity of energization solenoid 205a has corresponding relation with sense of current, only need change the direction of current in solenoid 205a, the polarity of this solenoid 205a can be changed, therefore, when the magnetic of solenoid 205a near one end of described dichroic parts 205 with described magnet 205c when the magnetic pole of one end of described driver part 205a is identical, the one end described dichroic parts 205 being provided with to magnet 205c is produced thrust by solenoid 205a, change the position of described dichroic parts 205, in like manner, when the magnetic of solenoid 205a near one end of described dichroic parts 205 and described magnet 205c are when the magnetic of one end of described driver part 205a is far from it, then the one end described dichroic parts 205 being provided with to magnet 205c is produced suction by solenoid 205a, also can change the position of described dichroic parts 205.So, only need change the direction of current in solenoid 205a according to steering order, described dichroic parts 205 can be moved to primary importance or the second place, thus realize the driving to described dichroic parts 205.
In addition, as shown in Fig. 2, Fig. 4 and Fig. 5, in the preferred embodiment, described light-receiving member 210 can comprise: the 5th collector lens 210a and optical wand 201b;
Wherein, described 5th collector lens 210a, for carrying out convergence process to the light beam entering described 5th collector lens 201a;
Described optical wand 201b, carries out the light beam after assembling process for collecting by described 5th collector lens 201a.
Preferably, in a particular embodiment of the present invention, described light-receiving member 210 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 different assigned address in above-mentioned light supply apparatus, thus can by the beam reflection by the first LASER Light Source output on the light transmissive material of the different cavitys of described wavelength convert parts, 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 and the second place time, corresponding 3 available light source can be obtained: the second available light source, the 3rd available light source and the 4th available light source.And when multiple assigned addresses of described dichroic parts are N number of position, then can obtain corresponding (N+1) individual 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 4th light source, the 3rd light concentrating components and light-receiving member, the method comprises:
Carry out collimation by described collimating components to the first light beam 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 and the second place;
When described dichroic parts are positioned at primary importance, the beam reflection that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; Described second light concentrating components exports described wavelength convert parts to after assembling the light beam by described dichroic member reflects; Described wavelength convert parts are excited output second light beam according to received light beam, and export described second light beam to described second light concentrating components; Described second light concentrating components exports described second light beam to described dichroic parts; Described second light beam is transmitted through described light-receiving member by described dichroic parts;
Meanwhile, described 4th light source exports the 4th light beam to described 3rd light concentrating components; Described 3rd light concentrating components exports described dichroic parts to after being assembled by described 4th light beam; Described dichroic parts are by described 4th beam reflection extremely described light-receiving member;
When described dichroic parts are positioned at the second place, the beam reflection that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; Described second light concentrating components exports described wavelength convert parts to after assembling the light beam by described dichroic member reflects; Described wavelength convert parts are excited output the 3rd light beam according to received light beam, and export described 3rd light beam to described second light concentrating components; Described second light concentrating components exports described 3rd light beam to described dichroic parts; Described 3rd light beam is transmitted through described light-receiving member by described dichroic parts.
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 different assigned address in above-mentioned light supply apparatus, thus can by the beam reflection by the first LASER Light Source output on the light transmissive material of the different cavitys of described wavelength convert parts, make the different cavitys of described wavelength convert parts be excited to export the light beam of different wave length, thus form different multiple available light source.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, 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 (7)
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 4th light source, the 3rd light concentrating components and light-receiving member;
Described first LASER Light Source, for exporting the first light beam 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 dichroic parts, move to primary importance and the second place under described driver part drives;
Described wavelength convert parts, when described dichroic parts are positioned at primary importance, the convergent beam that described first light concentrating components exports is by described dichroic member reflects extremely described second light concentrating components, export described wavelength convert parts to after being assembled by described second light concentrating components again, excite the second light beam exporting and there is second wave length; When described dichroic parts are positioned at the second place, the light beam that described first light concentrating components exports will by described dichroic member reflects to described second light concentrating components, export described wavelength convert parts to after being assembled by described second light concentrating components again, excite the 3rd light beam exporting and there is the 3rd wavelength;
Described second light concentrating components, described second light beam exported with described wavelength convert parts and described 3rd light beam are assembled to described dichroic parts, and described second light beam and described 3rd light beam are transmitted through described light-receiving member by described dichroic parts again;
Described 4th light source, export the 4th light beam extremely described 3rd light concentrating components with the 4th wavelength, described 3rd light concentrating components exports described dichroic parts to after being assembled by described 4th light beam, and the 4th beam reflection that described 3rd light concentrating components exports by described dichroic parts is to described light-receiving member.
2. light supply apparatus as claimed in claim 1, it is characterized in that, described dichroic parts move to primary importance and the second place, and wherein, described primary importance is different from the angle of inclination of the described second place.
3. light supply apparatus as claimed in claim 2, it is characterized in that, control the lighting time of described first light source and the 4th light source and the angle of inclination of described dichroic parts respectively, enter light-receiving member with the 4th visible light source timesharing realizing the second visible light source of second wave length, the 3rd visible light source of the 3rd wavelength and the 4th wavelength.
4. light supply apparatus as claimed in claim 1, it is characterized in that, described wavelength convert parts comprise: the first corresponding with primary importance and the second place respectively cavity and the second cavity;
The inwall of described first cavity is provided with highly reflecting films, the highly reflecting films of described first cavity bottom are coated with the fluorescent powder of light beam for being excited to export second wave length, the highly reflecting films of described first cavity top are provided with the light transmissive material with predetermined area.
5. 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,
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.
6. a light source generation method, it is characterized in that, for comprising in the light supply apparatus of the first LASER Light Source, collimating components, reflection part, the first light concentrating components, dichroic parts, the second light concentrating components, wavelength convert parts, the 4th light source, the 3rd light concentrating components and light-receiving member
The method comprises:
Carry out collimation by described collimating components to the first light beam 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;
When described dichroic parts are positioned at primary importance, the beam reflection that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; Described second light concentrating components exports described wavelength convert parts to after assembling the light beam by described dichroic member reflects; Described wavelength convert parts are excited output second light beam according to received light beam, and export described second light beam to described second light concentrating components; Described second light concentrating components exports described second light beam to described dichroic parts; Described second light beam is transmitted through described light-receiving member by described dichroic parts;
Meanwhile, described 4th light source exports the 4th light beam to described 3rd light concentrating components; Described 3rd light concentrating components exports described dichroic parts to after being assembled by described 4th light beam; Described dichroic parts are by described 4th beam reflection extremely described light-receiving member;
When described dichroic parts are positioned at the second place, the beam reflection that described first light concentrating components exports by described dichroic parts is to described second light concentrating components; Described second light concentrating components exports described wavelength convert parts to after assembling the light beam by described dichroic member reflects; Described wavelength convert parts are excited output the 3rd light beam according to received light beam, and export described 3rd light beam to described second light concentrating components; Described second light concentrating components exports described 3rd light beam to described dichroic parts; Described 3rd light beam is transmitted through described light-receiving member by described dichroic parts.
7. 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 5 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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| CN201310089537.5A CN103186026B (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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| CN103186026B (en) | 2015-04-22 |
| CN103186026A (en) | 2013-07-03 |
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