CN103186025A - 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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- CN103186025A CN103186025A CN2013100895229A CN201310089522A CN103186025A CN 103186025 A CN103186025 A CN 103186025A CN 2013100895229 A CN2013100895229 A CN 2013100895229A CN 201310089522 A CN201310089522 A CN 201310089522A CN 103186025 A CN103186025 A CN 103186025A
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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 production method and comprise the laser projection of light supply apparatus.
Background technology
In recent years, laser projection is long because of its life-span, picture brightness is high and advantage such as rich color is widely used in multiple occasion, for example television projection, micro projection and some commercializations, education and home entertainment system etc.
As everyone knows, optical frame need be made up of the light wave of different predominant wavelengths at least, for example by blueness, green and red light wave component.In present prior art, generally can generate the light source of another kind of wavelength as exciting light with a kind of light source of wavelength, then again with the light source timesharing emission of other wavelength, demonstrate various pictures at projection screen.For example, the blue laser that can be sent with the blue-light semiconductor laser instrument excites green light fluorescent powder to produce green glow as exciting light.
Fig. 1 is structure and the principle schematic of light supply apparatus in the prior art.Referring to Fig. 1, the light source here comprises: first light source 101 that wavelength has nothing in common with each other, secondary light source (not shown in figure 1) and the 3rd light source 116.This light supply apparatus comprises: collimating mirror 102, catoptron group 103, first collector lens 104, the first dichroic sheet 105, second collector lens 106, fluorescence wheel 107, the 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 allows first light source and the 3rd light source to see through, secondary light source is reflected, and the second dichroic sheet 111 allows first light source to see through, and secondary light source and the 3rd light source are reflected.
And, be coated with fluorescent powder in the subregion of fluorescence wheel 107, be under the situation of exciting light with first light source 101, the zone that is coated with fluorescent powder produces secondary light source.Because the fluorescence wheel is rotatable, first light source shines the zones of different of fluorescence wheel 107, can produce the light of different wave length.
In Fig. 1, the light beam with first wavelength of first light source, 101 outgoing is divergent shape and is incident to collimating mirror 102, and collimating mirror 102 becomes parallel beam with this beam collimation; Catoptron group 103 reflex makes the optical axis of this parallel beam revolve and turn 90 degrees that the parallel beam behind 104 pairs of rotations of first collector lens optical axis is assembled, to 105 outgoing of the first dichroic sheet; After the light beam of first light source sees through the first dichroic sheet 105, after second collector lens 106 is assembled processing, arrive fluorescence wheel 107.
Fluorescence wheel 107 rotates under the driving of CD-ROM drive motor 117.For the wheel of the fluorescence in the rotation 107, when if first light source 101 is incident in phosphor area, excitated fluorescent powder is launched the secondary light source with second wavelength, this secondary light source is with the direction outgoing in contrast to the first light source incident direction, after arriving the first dichroic sheet 105, its optical axis is rotated by 90 degrees under reflex, again through behind the first deviation mirror 109a, the first catoptron 110a, the second deviation mirror 109b, to 111 incidents of the second dichroic sheet; Because 111 pairs of secondary light sources of the second dichroic sheet reflect, then light beam directive the 3rd collector lens 112 of secondary light source focuses in the optical wand 113 at last.In brief, when first light source 101 was incident in the phosphor area of fluorescence wheel 107, what optical wand 113 was collected was the secondary light source with second wavelength.
If first light source 101 be incident in uncoated fluorescent powder on the fluorescence wheel 107 see through the zone time, first light source, 101 transmission fluorescence wheel 107, after the convergence of the 4th collector lens 114, the second catoptron 110b and the 3rd deviation mirror 115, reflecting and turn to, see through the second dichroic sheet 111 and transfer to the 3rd collector lens 112, finally focus in the optical wand 113.That is to say, first light source 101 be incident in fluorescence wheel 107 see through the zone time, what optical wand 113 was collected is first light source with first wavelength.
The 3rd light source 116 with three-wavelength is with the direction outgoing of the optical axis that is parallel to first light source, after the convergence through second collector lens 106, arrive the first dichroic sheet 105, because the first dichroic sheet 105 allows the 3rd light source to see through, then the 3rd light source through after the turning to, reflect and turn to of the first deviation mirror 109a, the first catoptron 110a, the second deviation mirror 109b, arrives the second dichroic sheet 111 again; The second dichroic sheet 111 revolves the optical axis of the 3rd light source 116 and turn 90 degrees, and through the 3rd collector lens 112, finally focuses in the optical wand 113.
Based on above structure and principle, by controlling lighting the time of first light source and the 3rd light source, control the rotational speed of fluorescence wheel simultaneously, can realize that first light source, secondary light source, the 3rd light source timesharing enter in the optical wand 113, obtain the hot spot of different colours, and then constitute display frame.
Though above-mentioned conventional lighting sources device makes laser projection be achieved,, can find that from Fig. 1 the CD-ROM drive motor 117 of the fluorescence wheel 107 in this light supply apparatus is electric rotating machine.Described electric rotating machine is because the influence of moment of inertia can make the motor shaft of described electric rotating machine that swinging around axle of one-period arranged.Therefore, when electric rotating machine begins rotation, when the motor shaft of this electric rotating machine produces swing, will make described fluorescence wheel 107 that the movement of front and back is arranged with respect to predetermined design attitude, thereby make that light source that above-mentioned light supply apparatus produces also can be owing to fluorescence is taken turns 107 move forward and backward and produce periodic brightness and change, therefore cause the periodicity light and shade variation of same projected picture and the unevenness of picture brightness, reduced the quality of projected picture.Simultaneously, the system of above-mentioned conventional lighting sources device is more complicated also, debugs the comparison difficulty.In addition, in the light supply apparatus in the prior art, motor rotating at high speed itself also is 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 a kind of better light supply apparatus, thereby avoids light source to produce the problem that periodically brightness changes, and improves the quality of projected picture.
Summary of the invention
According to the present invention, a kind of light supply apparatus, light source production method are provided and have comprised the laser projection of light supply apparatus, thereby can avoid light source to produce the problem that periodically brightness changes effectively, improve the quality of projected picture greatly.
According to a kind of light supply apparatus of the present invention, it comprises: first LASER Light Source, collimating components, reflection part, the first optically focused parts, dichroic parts, driver part, the second optically focused parts, wavelength converting member, the 3rd optically focused parts, light-receiving member and reflection deviation mirror group; Wherein,
Described first LASER Light Source exports described collimating components to for first light beam that will have first wavelength;
Described collimating components for processing that first light beam that receives is collimated, obtains parallel beam, and exports described parallel beam to described reflection part;
Described reflection part is used for described parallel beam is reflexed to the described first optically focused parts;
The described first optically focused parts export described dichroic parts to after the parallel beam that is used for receiving is assembled;
Described driver part is used for according to steering order described dichroic parts being moved to a plurality of assigned addresses; Wherein, described a plurality of assigned address comprises at least: primary importance, the second place and the 3rd position;
Described dichroic parts, the beam reflection that is used for the described first optically focused parts are exported is to the described second optically focused parts; The light beam by described second optically focused parts output that receives is transmitted through described light-receiving member; With the beam reflection of described reflection deviation mirror group output to described light-receiving member;
The described second optically focused parts, be used for to receive assembled by described dichroic parts beam reflected after export described wavelength converting member to; And export the light beam by the output of described wavelength converting member that receives to described dichroic parts;
Described wavelength converting member is used for when described dichroic parts are positioned at primary importance the light beam with first wavelength that receives being transmitted through described the 3rd optically focused parts; When described dichroic parts are positioned at the second place, are excited to export second light beam with second wavelength according to the light beam that receives, and export described second light beam to the described second optically focused parts; Also be used for when described dichroic parts are positioned at the 3rd position, are excited to export the 3rd light beam with three-wavelength according to the light beam that receives, and export described the 3rd light beam to the described second optically focused parts;
Described the 3rd optically focused parts export described catoptron group to after the light beam that receives is assembled;
Described catoptron group, be used for light beam to described the 3rd optically focused parts output reflect and assemble after export described dichroic parts to.
Wherein, described catoptron group comprises: first catoptron, second catoptron, the 3rd catoptron, first deviation mirror, second deviation mirror and the 3rd deviation mirror;
Described first catoptron, the beam reflection that is used for described the 3rd optically focused parts are exported is to described first deviation mirror;
Described first deviation mirror exports described second catoptron to after the light beam of described first catoptron output is assembled;
Described second catoptron, the beam reflection that is used for described first deviation mirror is exported is to described second deviation mirror;
Described second deviation mirror exports described the 3rd catoptron to after the light beam of described second catoptron output is assembled;
Described the 3rd catoptron, the beam reflection that is used for described second deviation mirror is exported is to described the 3rd deviation mirror;
Described the 3rd deviation mirror exports described dichroic parts to after the light beam of described the 3rd catoptron output is assembled.
Wherein, described driver part is connected with described dichroic parts by driving shaft.
Wherein, described driver part is CD-ROM drive motor.
Wherein, comprise at least in the described wavelength converting member: the printing opacity through hole corresponding with described primary importance, with corresponding first cavity of the described second place and second cavity corresponding with described the 3rd position; Wherein,
Described printing opacity through hole is used for the light beam that transmission has first wavelength;
Be provided with highly reflecting films on the inwall of described first cavity and second cavity;
The highly reflecting films at the described first cavity top are provided with first light transmissive material with predetermined area; Be coated with on the highly reflecting films of described first cavity bottom be used to the second wavelength fluorescent powder of being excited to export second light beam with second wavelength;
The highly reflecting films at the described second cavity top are provided with second light transmissive material with predetermined area; Be coated be used to the three-wavelength fluorescent powder of being excited to export the 3rd light beam with three-wavelength on the highly reflecting films of described second cavity bottom.
Wherein, be provided with heating radiator under each cavity of described wavelength converting member.
Wherein, described light-receiving member comprises: the 5th collector lens and optical wand; Wherein,
Described the 5th collector lens is used for the light beam that enters described the 5th collector lens is assembled processing;
Described optical wand be used for to be collected by described the 5th collector lens and is assembled light beam after the processing.
Wherein, described light-receiving member is fly's-eye lens.
The present invention also provides a kind of light source production method, be used for comprising the light supply apparatus of first LASER Light Source, collimating components, reflection part, the first optically focused parts, dichroic parts, driver part, the second optically focused parts, wavelength converting member, the 3rd optically focused parts, light-receiving member and reflection deviation mirror group, this method comprises:
To the processing that collimates of first light beam with first wavelength of described first LASER Light Source output, obtain parallel beam by described collimating components;
By described reflection part described parallel beam is reflexed to the described first optically focused parts;
After assembling, the parallel beam of being received by the butt joint of the described first optically focused parts exports described dichroic parts to;
According to steering order described dichroic parts are moved to a plurality of assigned addresses by described driver part; Wherein, described a plurality of assigned address comprises at least: primary importance, the second place and the 3rd position;
When described dichroic parts are positioned at primary importance, described dichroic parts with the beam reflection with first wavelength of described first optically focused parts output to the described second optically focused parts; The described second optically focused parts export described wavelength converting member to after described dichroic parts beam reflected is assembled; Described wavelength converting member is transmitted through described the 3rd optically focused parts with the light beam with first wavelength that receives; Described the 3rd optically focused parts export the light beam with first wavelength of described wavelength converting member output to described catoptron group; Described catoptron group the light beam with first wavelength of described the 3rd optically focused parts output is reflected and assemble after export described dichroic parts to; Described dichroic parts with the beam reflection with first wavelength of described reflection deviation mirror group output to described light-receiving member;
When described dichroic parts are positioned at the second place, described dichroic parts with the beam reflection with first wavelength of described first optically focused parts output to the described second optically focused parts; The described second optically focused parts export described wavelength converting member to after the light beam with first wavelength of described dichroic parts reflection is assembled; Described wavelength converting member is excited to export second light beam with second wavelength according to the light beam with first wavelength that receives, and exports described second light beam to the described second optically focused parts; The described second optically focused parts export the light beam with second wavelength of described wavelength converting member output to described dichroic parts; Described dichroic parts are transmitted through described light-receiving member with the light beam with second wavelength of described second optically focused parts output;
When described dichroic parts are positioned at the 3rd position, described dichroic parts with the beam reflection with first wavelength of described first optically focused parts output to the described second optically focused parts; The described second optically focused parts export described wavelength converting member to after the light beam with first wavelength of described dichroic parts reflection is assembled; Described wavelength converting member is excited to export the 3rd light beam with three-wavelength according to the light beam with first wavelength that receives, and exports described the 3rd light beam to the described second optically focused parts; The described second optically focused parts export the light beam with three-wavelength of described wavelength converting member output to described dichroic parts; Described dichroic parts, then the light beam with three-wavelength with described second optically focused parts output is transmitted through described light-receiving member.
The present invention also provides a kind of laser projection, and 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 further spared light to light source, display chip generates picture under the real-time control of control module, the picture that generates goes out picture to display through projection lens projects again.
As seen from the above technical solution, the light supply apparatus that provides in the present invention, light source production method and comprise in the laser projection of light supply apparatus, owing in above-mentioned light supply apparatus, used the dichroic parts that can turn to a plurality of assigned addresses, thereby can with by the beam reflection of first LASER Light Source output to described wavelength converting member, make described wavelength converting member to export required multi-wavelength's light beam to light-receiving member according to the position at described dichroic parts place, thereby form different a plurality of available light source.Because in above-mentioned light supply apparatus, do not use fluorescence wheel and electric rotating machine, and the dichroic parts that can move to a plurality of assigned addresses and the wavelength converting member that can export multi-wavelength's light beam according to the position at described dichroic parts place have been to use, therefore cause the fluorescence wheel location to move in the time of can avoiding using electric rotating machine effectively, and then cause light source to produce the problem that periodically brightness changes, thereby improved the quality of projected picture widely.Further, because above-mentioned light supply apparatus is relatively simple for structure, therefore also simplify light-source system effectively, improved and debug efficient, also solved the potential safety hazard of using high-speed rotary motor simultaneously.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art.Apparently, the accompanying drawing in below describing only is 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 the prior art;
Fig. 2 is structure and the principle schematic of the light supply apparatus in the embodiment of the invention;
Fig. 3 is driver part in the embodiment of the invention and the structural representation of dichroic parts;
Principle schematic when Fig. 4 is positioned at primary importance for the dichroic parts in the embodiment of the invention;
Principle schematic when Fig. 5 is positioned at the second place for the dichroic parts in the embodiment of the invention;
Principle schematic when Fig. 6 is positioned at the 3rd position for the dichroic parts in the embodiment of the invention.
Fig. 7 is the diagrammatic cross-section of the wavelength converting member in the embodiment of the invention;
Fig. 8 is the schematical top view of the wavelength converting member in the embodiment of the invention;
Fig. 9 is the schematic diagram of the laser projection in the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Fig. 2 is structure and the principle schematic of the light supply apparatus in the embodiment of the invention.As shown in Figure 2, in specific embodiments of the invention, described light supply apparatus comprises at least: not shown among first LASER Light Source 201, collimating components 202, reflection part 203, the first optically focused parts 204, dichroic parts 205, driver part 205a(Fig. 2), the second optically focused parts 206, wavelength converting member 207, the 3rd optically focused parts 208, light-receiving member 209 and reflection deviation mirror group 210;
Wherein, described first LASER Light Source 201 exports described collimating components 202 to for first light beam that will have first wavelength;
Described collimating components 202 for processing that first light beam that receives is collimated, obtains parallel beam, and exports described parallel beam to described reflection part 203;
Described reflection part 203 is used for described parallel beam is reflexed to the described first optically focused parts 204;
The described first optically focused parts 204 export described dichroic parts 205 to after the parallel beam that is used for receiving is assembled;
Described driver part 205a is used for according to steering order described dichroic parts 205 being moved to a plurality of assigned addresses; Wherein, described a plurality of assigned address comprises at least: primary importance, the second place and the 3rd position;
Described dichroic parts 205, the beam reflection that is used for the described first optically focused parts 204 are exported is to the described second optically focused parts 206; The light beam by 206 outputs of the described second optically focused parts that receives is transmitted through described light-receiving member 209; With the beam reflection of described reflection deviation mirror group 210 outputs to described light-receiving member 209;
The described second optically focused parts 206, to receive assembled by described dichroic parts 205 beam reflected after export described wavelength converting member 207 to, and export the light beam by 207 outputs of described wavelength converting member that receives to described dichroic parts 205;
Described wavelength converting member 207 is used for when described dichroic parts 205 are positioned at primary importance the light beam with first wavelength that receives being transmitted through described the 3rd optically focused parts 208; When described dichroic parts 205 are positioned at the second place, are excited to export second light beam with second wavelength according to the light beam that receives, and export described second light beam to the described second optically focused parts 206; Also be used for when described dichroic parts 205 are positioned at the 3rd position, are excited to export the 3rd light beam with three-wavelength according to the light beam that receives, and export described the 3rd light beam to the described second optically focused parts 206;
Described the 3rd optically focused parts 208 export described catoptron group 210 to after the light beam that receives is assembled;
Described catoptron group 210, be used for light beam to 208 outputs of described the 3rd optically focused parts reflect and assemble after export described dichroic parts 205 to.
Preferable, as shown in Figure 2, in specific embodiments of the 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;
The described first catoptron 210a, the beam reflection that is used for described the 3rd optically focused parts 208 are exported is to the described first deviation mirror 211a;
The described first deviation mirror 211a exports the described second catoptron 210b to after the light beam of described first catoptron 210a output is assembled;
The described second catoptron 210b, the beam reflection that is used for the described first deviation mirror 211a is exported is to the described second deviation mirror 211b;
The described second deviation mirror 211b exports described the 3rd catoptron 210c to after the light beam of described second catoptron 210b output is assembled;
Described the 3rd catoptron 210c, the beam reflection that is used for the described second deviation mirror 211b is exported is to described the 3rd deviation mirror 211c;
Described the 3rd deviation mirror 211c exports described dichroic parts 205 to after the light beam of described the 3rd catoptron 210c output is assembled.
Fig. 3 is driver part in the embodiment of the invention and the structural representation of dichroic parts.As shown in Figure 3, in preferred embodiment of the present invention, described driver part 205a is connected with dichroic parts 205 by driving shaft 205b, therefore, described dichroic parts 205 can be swung under the driving of driver part 205a, thereby swing to a plurality of assigned addresses.
Preferable, in specific embodiments of the invention, described driver part 205a is CD-ROM drive motor.
Principle schematic when Fig. 4 is positioned at primary importance for the dichroic parts in the embodiment of the invention.Principle schematic when Fig. 5 is positioned at the second place for the dichroic parts in the embodiment of the invention.Principle schematic when Fig. 6 is positioned at the 3rd position for the dichroic parts in the embodiment of the invention.
As shown in Figure 4, in preferred embodiment of the present invention, when described dichroic parts 205 are positioned at primary importance, the light beam with first wavelength of the described first optically focused parts 204 outputs will be reflexed to the described second optically focused parts 206 by described dichroic parts 205;
After assembling, 206 pairs of described dichroic parts 205 beam reflected of the described second optically focused parts export described wavelength converting member 207 to;
Described wavelength converting member 207 then directly is transmitted through the light beam with first wavelength that receives described the 3rd optically focused parts 208;
Described the 3rd optically focused parts 208 export the light beam with first wavelength of described wavelength converting member 207 outputs to described catoptron group 210;
Described catoptron group 210, be used for the light beam with first wavelength to 208 outputs of described the 3rd optically focused parts reflect and assemble after export described dichroic parts 205 to;
Described dichroic parts 205, then the beam reflection with first wavelength that described reflection deviation mirror group 210 is exported is to described light-receiving member 209.
In brief, when described dichroic parts 205 were positioned at primary importance, what described light-receiving member 209 received was the light beam with first wavelength, and therefore, first LASER Light Source 201 of this moment namely can be used as first available light source and uses.
As shown in Figure 5, in preferred embodiment of the present invention, when described dichroic parts 205 are positioned at the second place, the light beam with first wavelength of the described first optically focused parts 204 outputs will be reflexed to the described second optically focused parts 206 by described dichroic parts 205;
After assembling, the light beam with first wavelength of 206 pairs of described dichroic parts 205 reflections of the described second optically focused parts exports described wavelength converting member 207 to;
207 of described wavelength converting members are excited to export second light beam with second wavelength according to the light beam with first wavelength that receives, and export described second light beam to the described second optically focused parts 206;
The described second optically focused parts 206 export the light beam with second wavelength of described wavelength converting member 207 outputs to described dichroic parts 205;
Described dichroic parts 205, then the light beam with second wavelength with 206 outputs of the described second optically focused parts is transmitted through described light-receiving member 209.
In brief, when described dichroic parts 205 were positioned at the second place, what described light-receiving member 209 received was second light beam with second wavelength, and therefore, first LASER Light Source 201 of this moment namely can be used as second available light source and uses.
As shown in Figure 6, in preferred embodiment of the present invention, when described dichroic parts 205 are positioned at the 3rd position, the light beam with first wavelength of the described first optically focused parts 204 outputs will be reflexed to the described second optically focused parts 206 by described dichroic parts 205;
After assembling, the light beam with first wavelength of 206 pairs of described dichroic parts 205 reflections of the described second optically focused parts exports described wavelength converting member 207 to;
Described wavelength converting member 207 then is excited to export the 3rd light beam with three-wavelength according to the light beam with first wavelength that receives, and exports described the 3rd light beam to the described second optically focused parts 206;
The described second optically focused parts 206 export the light beam with three-wavelength of described wavelength converting member 207 outputs to described dichroic parts 205;
Described dichroic parts 205, then the light beam with three-wavelength with 206 outputs of the described second optically focused parts is transmitted through described light-receiving member 209.
In brief, when described dichroic parts 205 were positioned at the 3rd position, what described light-receiving member 209 received was the 3rd light beam with three-wavelength, and therefore, first LASER Light Source 201 of this moment namely can be used as the 3rd available light source and uses.
Based on above structure and principle as can be known, by controlling the position at described dichroic parts 205 places, can realize that first available light source, second available light source and the 3rd available light source timesharing enter in the light-receiving member 209, obtain the hot spot of different colours, and then constitute required display frame.
Fig. 7 is the diagrammatic cross-section of the wavelength converting member in the embodiment of the invention.Fig. 8 is the schematical top view of the wavelength converting member in the embodiment of the invention.As shown in Figure 7 and Figure 8, in preferred embodiment of the present invention, comprise at least in the described wavelength converting member 207: the printing opacity through hole 70 corresponding with described primary importance, with corresponding first cavity 71 of the described second place and second cavity 72 corresponding with described the 3rd position;
Wherein, described printing opacity through hole 70 is used for the light beam that transmission has first wavelength;
Be provided with highly reflecting films 73 on the inwall of described first cavity 71 and second cavity 72;
The highly reflecting films 73 at described first cavity 71 tops are provided with first light transmissive material 710 with predetermined area;
Be coated be used to the second wavelength fluorescent powder 711 of being excited to export second light beam with second wavelength on the highly reflecting films 73 of described first cavity 71 bottoms;
The highly reflecting films 73 at described second cavity 72 tops are provided with second light transmissive material 720 with predetermined area;
Be coated be used to the three-wavelength fluorescent powder 721 of being excited to export the 3rd light beam with three-wavelength on the highly reflecting films 73 of described second cavity 72 bottoms.
Preferable, in specific embodiments of the invention, in the described wavelength converting member 207 N cavity can be set, wherein, N is the integer more than or equal to 2.For example, the 3rd cavity, the 4th cavity ..., N cavity etc.Preferable, in specific embodiments of the invention, the concrete value of N also can pre-determine according to practical situations, does not repeat them here.
All be coated with the fluorescent powder be used to the light beam of being excited to export respective wavelength on the highly reflecting films of the bottom of each cavity.Also be provided with the light transmissive material with predetermined area on the highly reflecting films at each cavity top.The setting of concrete fluorescent powder and the setting of light transmissive material and Fig. 7 and the situation with two cavitys shown in Figure 8 are similar, can the rest may be inferred, therefore do not repeat them here.
Therefore, when described dichroic parts 205 when the driving of driver part 205a is moved to different positions, described dichroic parts 205 can be with on the beam reflection of the described first optically focused parts 204 output printing opacity through hole 70 to the described wavelength converting member 207 or on the light transmissive material on the respective cavities top.
When light beam is reflected on the printing opacity through hole 70, this light beam will directly be transmitted through on described the 3rd optically focused parts 208 by described printing opacity through hole 70, the light beam that described the 3rd optically focused parts 208 then have this first wavelength exports described catoptron group 210 to, and the reflection by described catoptron group 210 and assemble after export described dichroic parts 205 to, then by described dichroic parts 205 with this beam reflection with first wavelength to described light-receiving member 209;
When light beam is reflected on the light transmissive material on the respective cavities top, this light beam will be transmitted in the respective cavities, shine on the fluorescent powder of respective cavities bottom, make fluorescent powder be excited and export the light beam of being excited of respective wavelength; Described being excited after the reflection of light beam through the highly reflecting films on the respective cavities inwall will transmit respective cavities from the light transmissive material on the respective cavities top, export the described second optically focused parts 206 then to; The described second optically focused parts 206 then export the light beam of described wavelength converting member 207 outputs to described dichroic parts 205, and are transmitted through described light-receiving member 209 by described dichroic parts 205.
For example, include only primary importance, the second place and the 3rd position with described a plurality of assigned addresses, and only be provided with two cavitys in the described wavelength converting member 207: first cavity 71 and second cavity 72, and primary importance and printing opacity through hole are 70 corresponding, the second place and first cavity is 71 corresponding, the 3rd position and second cavity 72 should be example relatively:
When described dichroic parts 205 when the driving of driver part 205a is moved to primary importance, described dichroic parts 205 can be with on the beam reflection with first wavelength of the described first optically focused parts 204 output printing opacity through hole 70 to the described wavelength converting member 207, thereby directly is transmitted through described the 3rd optically focused parts 208 through described printing opacity through hole 70; The light beam that described the 3rd optically focused parts 208 then can have this first wavelength exports described catoptron group 210 to; 210 pairs of these light beams with first wavelength of described catoptron group reflect and assemble after export described dichroic parts 205 to; 205 of described dichroic parts with this beam reflection with first wavelength to described light-receiving member 209, as first available light source.
When described dichroic parts 205 when the driving of driver part 205a is moved to the second place, described dichroic parts 205 can be with on first light transmissive material 710 on the beam reflection with first wavelength of the described first optically focused parts 204 output first cavity, 71 tops to the described wavelength converting member 207, thereby be transmitted in first cavity 71, shine on the second wavelength fluorescent powder 711 of first cavity, 71 bottoms, make the second wavelength fluorescent powder 711 be excited and export second light beam with second wavelength; Described second light beam is after highly reflecting films 73 reflections on first cavity, 71 inwalls, and first light transmissive material 710 from first cavity, 71 tops transmits first cavity 71, exports the described second optically focused parts 206 then to; The described second optically focused parts, 206 these light beams with second wavelength export described dichroic parts 205 to; 205 of described dichroic parts are transmitted through described light-receiving member 209 with this light beam with second wavelength, as second available light source.
In like manner, when described dichroic parts 205 when the driving of driver part 205a is moved to the 3rd position, described dichroic parts 205 can be with on second light transmissive material 720 on the beam reflection with first wavelength of the described first optically focused parts 204 output second cavity, 72 tops to the described wavelength converting member 207, thereby be transmitted in second cavity 72, shine on the three-wavelength fluorescent powder 721 of second cavity, 72 bottoms, make three-wavelength fluorescent powder 721 be excited and export the 3rd light beam with three-wavelength; Described the 3rd light beam is after highly reflecting films 73 reflections on second cavity, 72 inwalls, and second light transmissive material 720 from second cavity, 72 tops transmits second cavity 72, exports the described second optically focused parts 206 then to; The described second optically focused parts, 206 these light beams with three-wavelength export described dichroic parts 205 to; 205 of described dichroic parts are transmitted through described light-receiving member 209 with this light beam with three-wavelength, as the 3rd available light source.
And the like, if described a plurality of assigned address comprises N position, then be provided with in the described wavelength converting member 207 with described N position and distinguish printing opacity through hole and (N-1) individual cavity one to one, then when described dichroic parts 205 when the driving of driver part 205a is moved to N diverse location, described light-receiving member 209 can receive N kind light beams of different wavelengths.Detailed process does not repeat them here.
Preferable, in specific embodiments of the invention, also be provided with heating radiator 74 under each cavity of described wavelength converting member 207, be used to whole wavelength converting member 207 to dispel the heat.
In addition, as Fig. 2, Fig. 4, Fig. 5 and shown in Figure 6, in preferred embodiment of the present invention, described light-receiving member 209 can comprise: the 5th collector lens 209a and optical wand 209b;
Wherein, described the 5th collector lens 209a is used for the light beam that enters described the 5th collector lens 209a is assembled processing;
Described optical wand 209b be used for to collect by described the 5th collector lens 209a and assembles light beam after the processing.
Preferable, in specific embodiments of the invention, described light-receiving member 209 can be: fly's-eye lens; Described fly's-eye lens is used for receiving and collecting the light beam that enters described fly's-eye lens.
According to the structure of above-mentioned light supply apparatus as can be known, in technical scheme of the present invention, owing in above-mentioned light supply apparatus, used the dichroic parts that can turn to a plurality of different assigned addresses, thereby can with by the beam reflection of first LASER Light Source output to the light transmissive material of the printing opacity through hole of described wavelength converting member or different cavitys, make the different cavitys of described wavelength converting member be excited to export light beams of different wavelengths, thereby form different available light source.For example, when the assigned address of dichroic parts is primary importance, the second place and the 3rd position, can obtain corresponding 3 available light source: first available light source, second available light source and the 3rd available light source.And when a plurality of assigned addresses of described dichroic parts are N position, then can obtain a corresponding N available light source.Owing in above-mentioned light supply apparatus, do not need to use fluorescence wheel and electric rotating machine, and be to use the dichroic parts that can move to a plurality of assigned addresses.Cause the fluorescence wheel location to move when therefore having avoided the use electric rotating machine effectively, and then cause light source to produce the problem that periodically brightness changes, so can improve the quality of projection greatly.And therefore above-mentioned light supply apparatus relatively simple for structure also simplified light-source system effectively, improved and debug efficient, also solved the potential safety hazard of using high-speed rotary motor simultaneously.
In addition, in technical scheme of the present invention, a kind of light source production method has also been proposed, be used for comprising the light supply apparatus of first LASER Light Source, collimating components, reflection part, the first optically focused parts, dichroic parts, driver part, the second optically focused parts, wavelength converting member, the 3rd optically focused parts, light-receiving member and reflection deviation mirror group, this method comprises:
To the processing that collimates of first light beam with first wavelength of described first LASER Light Source output, obtain parallel beam by described collimating components;
By described reflection part described parallel beam is reflexed to the described first optically focused parts;
After assembling, the parallel beam of being received by the butt joint of the described first optically focused parts exports described dichroic parts to;
According to steering order described dichroic parts are moved to a plurality of assigned addresses by described driver part; Wherein, described a plurality of assigned address comprises at least: primary importance, the second place and the 3rd position;
When described dichroic parts are positioned at primary importance, described dichroic parts with the beam reflection with first wavelength of described first optically focused parts output to the described second optically focused parts; The described second optically focused parts export described wavelength converting member to after described dichroic parts beam reflected is assembled; Described wavelength converting member is transmitted through described the 3rd optically focused parts with the light beam with first wavelength that receives; Described the 3rd optically focused parts export the light beam with first wavelength of described wavelength converting member output to described catoptron group; Described catoptron group the light beam with first wavelength of described the 3rd optically focused parts output is reflected and assemble after export described dichroic parts to; Described dichroic parts with the beam reflection with first wavelength of described reflection deviation mirror group output to described light-receiving member;
When described dichroic parts are positioned at the second place, described dichroic parts with the beam reflection with first wavelength of described first optically focused parts output to the described second optically focused parts; The described second optically focused parts export described wavelength converting member to after the light beam with first wavelength of described dichroic parts reflection is assembled; Described wavelength converting member is excited to export second light beam with second wavelength according to the light beam with first wavelength that receives, and exports described second light beam to the described second optically focused parts; The described second optically focused parts export the light beam with second wavelength of described wavelength converting member output to described dichroic parts; Described dichroic parts are transmitted through described light-receiving member with the light beam with second wavelength of described second optically focused parts output;
When described dichroic parts are positioned at the 3rd position, described dichroic parts with the beam reflection with first wavelength of described first optically focused parts output to the described second optically focused parts; The described second optically focused parts export described wavelength converting member to after the light beam with first wavelength of described dichroic parts reflection is assembled; Described wavelength converting member is excited to export the 3rd light beam with three-wavelength according to the light beam with first wavelength that receives, and exports described the 3rd light beam to the described second optically focused parts; The described second optically focused parts export the light beam with three-wavelength of described wavelength converting member output to described dichroic parts; Described dichroic parts, then the light beam with three-wavelength with described second optically focused parts output is transmitted through described light-receiving member.
In addition, in technical scheme of the present invention, a kind of laser projection has been proposed also.
Fig. 9 is the schematic diagram of the laser projection in the embodiment of the 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 further spared light to light source, display chip generates picture under the real-time control of control module 903, the picture that generates goes out picture to display through projection lens projects again;
Described electric power driving module 902 provides the driving electric energy for described light supply apparatus 900 and display chip.
In summary, the light supply apparatus that provides in the present invention, light source production method and comprise in the laser projection of light supply apparatus, owing in above-mentioned light supply apparatus, used the dichroic parts that can turn to a plurality of assigned addresses, thereby can with by the beam reflection of first LASER Light Source output to described wavelength converting member, make described wavelength converting member to export required multi-wavelength's light beam to light-receiving member according to the position at described dichroic parts place, thereby form different a plurality of available light source.Because in above-mentioned light supply apparatus, do not use fluorescence wheel and electric rotating machine, and the dichroic parts that can move to a plurality of assigned addresses and the wavelength converting member that can export multi-wavelength's light beam according to the position at described dichroic parts place have been to use, therefore cause the fluorescence wheel location to move in the time of can avoiding using electric rotating machine effectively, and then cause light source to produce the problem that periodically brightness changes, thereby improved the quality of projected picture widely.And therefore above-mentioned light supply apparatus relatively simple for structure also simplified light-source system effectively, improved and debug efficient, also solved the potential safety hazard of using high-speed rotary motor simultaneously.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. light supply apparatus, it is characterized in that this light supply apparatus comprises: first LASER Light Source, collimating components, reflection part, the first optically focused parts, dichroic parts, driver part, the second optically focused parts, wavelength converting member, the 3rd optically focused parts, light-receiving member and reflection deviation mirror group; Wherein,
First LASER Light Source exports described collimating components to for first light beam that will have first wavelength;
Described collimating components for processing that first light beam that receives is collimated, obtains parallel beam, and exports described parallel beam to described reflection part;
Described reflection part is used for described parallel beam is reflexed to the first optically focused parts;
After assembling, the parallel beam that the first optically focused parts are used for receiving exports described dichroic parts to;
Described driver part is used for according to steering order described dichroic parts being moved to a plurality of assigned addresses; Wherein, described a plurality of assigned address comprises at least: primary importance, the second place and the 3rd position;
Described dichroic parts are used for beam reflection to the second optically focused parts with the output of the first optically focused parts; The light beam by the output of the second optically focused parts that receives is transmitted through described light-receiving member; With the beam reflection of described reflection deviation mirror group output to described light-receiving member;
The second optically focused parts, be used for to receive assembled by described dichroic parts beam reflected after export described wavelength converting member to; Export the light beam by described wavelength converting member output that receives to described dichroic parts;
Described wavelength converting member is used for when described dichroic parts are positioned at primary importance the light beam with first wavelength that receives being transmitted through the 3rd optically focused parts; When described dichroic parts are positioned at the second place, are excited to export second light beam with second wavelength according to the light beam that receives, and export second light beam to second optically focused parts; Also be used for when described dichroic parts are positioned at the 3rd position, are excited to export the 3rd light beam with three-wavelength according to the light beam that receives, and export the 3rd light beam to second optically focused parts;
The 3rd optically focused parts export described catoptron group to after the light beam that receives is assembled;
Described catoptron group, be used for light beam to the output of the 3rd optically focused parts reflect and assemble after export described dichroic parts to.
2. light supply apparatus as claimed in claim 1 is characterized in that, described catoptron group comprises: first catoptron, second catoptron, the 3rd catoptron, first deviation mirror, second deviation mirror and the 3rd deviation mirror;
First catoptron is used for beam reflection to the first deviation mirror with the output of the 3rd optically focused parts;
First deviation mirror exports second catoptron to after the light beam of described first catoptron output is assembled;
Second catoptron is used for beam reflection to the second deviation mirror with the output of first deviation mirror;
Second deviation mirror exports the 3rd catoptron to after the light beam of second catoptron output is assembled;
The 3rd catoptron is used for beam reflection to the three deviation mirrors with the output of second deviation mirror;
The 3rd deviation mirror exports the dichroic parts to after the light beam of the 3rd catoptron output is assembled.
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. as claim 1 or 3 described light supply apparatuses, it 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, comprises at least in the described wavelength converting member: the printing opacity through hole corresponding with primary importance, with corresponding first cavity of the second place and second cavity corresponding with the 3rd position; Wherein,
Described printing opacity through hole is used for the light beam that transmission has first wavelength;
Be provided with highly reflecting films on the inwall of first cavity and second cavity;
The highly reflecting films at the first cavity top are provided with first light transmissive material with predetermined area; Be coated with on the highly reflecting films of first cavity bottom be used to the second wavelength fluorescent powder of being excited to export second light beam with second wavelength;
The highly reflecting films at the second cavity top are provided with second light transmissive material with predetermined area; Be coated be used to the three-wavelength fluorescent powder of being excited to export the 3rd light beam with three-wavelength on the highly reflecting films of second cavity bottom.
6. as claim or 5 described light supply apparatuses, it is characterized in that:
Be provided with heating radiator under each cavity of described wavelength converting member.
7. light supply apparatus as claimed in claim 1 is characterized in that, described light-receiving member comprises: the 5th collector lens and optical wand; Wherein,
The 5th collector lens is used for the light beam that enters the 5th collector lens is assembled processing;
Described optical wand be used for to be collected by described the 5th collector lens and is assembled light beam after the processing.
8. light supply apparatus as claimed in claim 1 is characterized in that:
Described light-receiving member is fly's-eye lens.
9. light source production method, it is characterized in that, be used for comprising the light supply apparatus of first LASER Light Source, collimating components, reflection part, the first optically focused parts, dichroic parts, driver part, the second optically focused parts, wavelength converting member, the 3rd optically focused parts, light-receiving member and reflection deviation mirror group, this method comprises:
To the processing that collimates of first light beam with first wavelength of first LASER Light Source output, obtain parallel beam by described collimating components;
By described reflection part described parallel beam is reflexed to the first optically focused parts;
After assembling, the parallel beam of being received by first optically focused parts butt joints exports described dichroic parts to;
According to steering order described dichroic parts are moved to a plurality of assigned addresses by described driver part; Wherein, described a plurality of assigned address comprises at least: primary importance, the second place and the 3rd position;
When described dichroic parts were positioned at primary importance, described dichroic parts were with beam reflection to the second optically focused parts with first wavelength of first optically focused parts output; The second optically focused parts export described wavelength converting member to after dichroic parts beam reflected is assembled; Described wavelength converting member is transmitted through the 3rd optically focused parts with the light beam with first wavelength that receives; The 3rd optically focused parts export the light beam with first wavelength of described wavelength converting member output to described catoptron group; Described catoptron group the light beam with first wavelength of the 3rd optically focused parts output is reflected and assemble after export described dichroic parts to; Described dichroic parts with the beam reflection with first wavelength of described reflection deviation mirror group output to described light-receiving member;
When described dichroic parts were positioned at the second place, described dichroic parts were with beam reflection to the second optically focused parts with first wavelength of first optically focused parts output; The second optically focused parts export described wavelength converting member to after the light beam with first wavelength of described dichroic parts reflection is assembled; Described wavelength converting member is excited to export second light beam with second wavelength according to the light beam with first wavelength that receives, and exports second light beam to second optically focused parts; The second optically focused parts export the light beam with second wavelength of described wavelength converting member output to described dichroic parts; Described dichroic parts are transmitted through described light-receiving member with the light beam with second wavelength of second optically focused parts output;
When described dichroic parts were positioned at the 3rd position, described dichroic parts were with beam reflection to the second optically focused parts with first wavelength of first optically focused parts output; The second optically focused parts export described wavelength converting member to after the light beam with first wavelength of described dichroic parts reflection is assembled; Described wavelength converting member is excited to export the 3rd light beam with three-wavelength according to the light beam with first wavelength that receives, and exports described the 3rd light beam to second optically focused parts; The second optically focused parts export the light beam with three-wavelength of described wavelength converting member output to described dichroic parts; Described dichroic parts, then the light beam with three-wavelength with the output of the second optically focused parts is transmitted through described light-receiving member.
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 described light supply apparatus of one of claim 1 to 8, 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 further spared light to light source, display chip generates picture under the real-time control of control module, the picture that generates 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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| CN201510147878.2A Division CN104730830A (en) | 2013-03-19 | 2013-03-19 | Light source device, light source producing method and laser projector comprising light source device |
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