CN103186026A - 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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- CN103186026A CN103186026A CN2013100895375A CN201310089537A CN103186026A CN 103186026 A CN103186026 A CN 103186026A CN 2013100895375 A CN2013100895375 A CN 2013100895375A CN 201310089537 A CN201310089537 A CN 201310089537A CN 103186026 A CN103186026 A CN 103186026A
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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
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- 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 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 fourth light source, a third condensation part and a light receiving part. 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 4th light source, the 3rd optically focused parts and light-receiving member;
Wherein, described first LASER Light Source is used for exporting first light beam to described collimating components;
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 and the second place;
Described dichroic parts are used for when be positioned at primary importance, with the beam reflection of described first optically focused parts output described second optically focused parts extremely; The light beam of described second optically focused parts output is transmitted through described light-receiving member; With the beam reflection of described the 3rd optically focused parts output to described light-receiving member; Also be used for when be positioned at the second place, with the beam reflection of described first optically focused parts output described second optically focused parts extremely; The light beam of described second optically focused parts output is transmitted through described light-receiving member;
The described second optically focused parts, to receive assembled by described dichroic parts beam reflected after export described wavelength converting member to, and export the light beam of described wavelength converting member output to described dichroic parts;
Described wavelength converting member is used for being excited to export second light beam according to the light beam that receives, and exporting described second light beam to the described second optically focused parts when described dichroic parts are positioned at primary importance; Also be used for when described dichroic parts are positioned at the second place, are excited to export the 3rd light beam according to the light beam that receives, and export described the 3rd light beam to the described second optically focused parts;
Described the 4th light source is used for exporting the 4th light beam to described the 3rd optically focused parts;
Described the 3rd optically focused parts are used for and will export described dichroic parts to after described the 4th light beam convergence.
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: with the accessibility a plurality of assigned addresses of described dichroic parts corresponding and mutual a plurality of cavitys and be wrapped in fluorescent powder reflector around described a plurality of cavity independently one by one; Wherein,
Be provided with highly reflecting films on the inwall of each cavity, 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 each cavity bottom, be provided with the light transmissive material with predetermined area on the highly reflecting films at each cavity top.
Wherein, described a plurality of cavity comprises at least: first cavity and second cavity.
Wherein, be provided with heating radiator under a plurality of cavitys of described wavelength converting member.
Wherein, when described a plurality of assigned addresses include only primary importance and the second place, and described a plurality of cavity is when including only first cavity and second cavity:
Described driver part is the electromagnet that is 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 the 5th collector lens is used for treating the light beam that enters described light-receiving member and assembles processing;
Described optical wand be used for to be collected by described the 5th collector lens and is assembled light beam after the processing.
A kind of light source production method has also been proposed among the present invention, 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 4th light source, the 3rd optically focused parts and light-receiving member, this method comprises:
To the processing that collimates of first light beam 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 and the second place;
When described dichroic parts are positioned at primary importance, described dichroic parts with the beam reflection 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 being assembled by described dichroic parts beam reflected; Described wavelength converting member is excited to export second light beam according to the light beam that receives, and exports described second light beam to the described second optically focused parts; The described second optically focused parts export described second light beam to described dichroic parts; Described dichroic parts are transmitted through described light-receiving member with described second light beam;
Simultaneously, described the 4th light source exports the 4th light beam to described the 3rd optically focused parts; Described the 3rd optically focused parts export described dichroic parts to after described the 4th light beam is assembled; Described dichroic parts with described the 4th beam reflection to described light-receiving member;
When described dichroic parts are positioned at the second place, described dichroic parts with the beam reflection 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 being assembled by described dichroic parts beam reflected; Described wavelength converting member is excited to export the 3rd light beam according to the light beam that receives, and exports described the 3rd light beam to the described second optically focused parts; The described second optically focused parts export described the 3rd light beam to described dichroic parts; Described dichroic parts are transmitted through described light-receiving member with described the 3rd light beam.
Also proposed a kind of laser projection among 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 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 different assigned addresses, thereby can with by the beam reflection of first LASER Light Source output to the light transmissive material of the different cavitys of described wavelength converting member, make the different cavitys of described wavelength converting member be excited to export light beams of different wavelengths, 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 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.
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;
Fig. 6 is the diagrammatic cross-section of the wavelength converting member in the embodiment of the invention;
Fig. 7 is the schematical top view of the wavelength converting member in the embodiment of the invention;
Fig. 8 a is driver part in another embodiment of the present invention and the structural representation one of dichroic parts;
Fig. 8 b is driver part in another embodiment of the present invention and the structural representation two of dichroic parts;
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 4th light source 209, the 3rd optically focused parts 208 and light-receiving member 210.The 4th light source 209 can be led light source, semiconductor laser light resource.
Wherein, described first LASER Light Source 201 is used for exporting first light beam to described collimating components 202.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 dichroic parts 205 are used for when be positioned at primary importance, with the beam reflection of the described first optically focused parts 204 outputs described second optically focused parts 206 extremely; The light beam of the described second optically focused parts 206 outputs is transmitted through described light-receiving member 210; With the beam reflection of described the 3rd optically focused parts 208 output to described light-receiving member 210; Also be used for when be positioned at the second place, with the beam reflection of the described first optically focused parts 204 outputs described second optically focused parts 206 extremely; The light beam of the described second optically focused parts 206 outputs is transmitted through described light-receiving member 210.
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 of described wavelength converting member 207 outputs to described dichroic parts 205; Wavelength converting member 207 is used for being excited to export second light beam according to the light beam that receives, and exporting described second light beam to the described second optically focused parts 206 when described dichroic parts 205 are positioned at primary importance; Also be used for when described dichroic parts 205 are positioned at the second place, are excited to export the 3rd light beam according to the light beam that receives, and export described the 3rd light beam to the described second optically focused parts 206.
Described the 4th light source 209 is used for exporting the 4th light beam to described the 3rd optically focused parts 208; The 3rd optically focused parts 208 are used for and will export described dichroic parts 205 to after described the 4th light beam convergence.
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.
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 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, export described wavelength converting member 207 to after being assembled by the described second optically focused parts 206 then; Described wavelength converting member 207 then is excited to export second light beam according to the light beam that receives, and exports described second light beam to the described second optically focused parts 206; The described second optically focused parts 206 export second light beam of described wavelength converting member 207 outputs to described dichroic parts 205; 205 second light beams with 206 outputs of the described second optically focused parts of described dichroic parts are transmitted through described light-receiving member 210.In brief, when described dichroic parts 205 were positioned at primary importance, what described light-receiving member 210 was collected was second available light source with second wavelength.
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 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, export described wavelength converting member 207 to after being assembled by the described second optically focused parts 206 then; Described wavelength converting member 207 then is excited to export the 3rd light beam according to the light beam 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 3rd light beam of described wavelength converting member 207 outputs to described dichroic parts 205; 205 the 3rd light beams with 206 outputs of the described second optically focused parts of described dichroic parts are transmitted through described light-receiving member 210.In brief, when described dichroic parts 205 were positioned at the second place, what described light-receiving member 210 was collected was the 3rd available light source with three-wavelength.
In addition, when described dichroic parts 205 are positioned at primary importance, described the 4th light source 209 can export the 4th light beam to described the 3rd optically focused parts 208, export described dichroic parts 205 to after 208 of described the 3rd optically focused parts can be assembled described the 4th light beam, the 4th beam reflection that described dichroic parts 205 then also can be exported described the 3rd optically focused parts 208 is to described light-receiving member 210.Therefore, when described dichroic parts 205 were positioned at primary importance, described light-receiving member 210 also can be collected the 4th available light source with the 4th wavelength.
Preferable, when described dichroic parts 205 are positioned at the second place, because the described dichroic parts 205 present located second places with respect to primary importance the variation on the angle have taken place, therefore, described the 4th light source 209 of this moment will no longer be exported the 4th light beam.
Based on above structure and principle as can be known, by controlling lighting the time of first light source and the 4th light source, control the position at described dichroic parts 205 places simultaneously, can realize that second available light source, the 3rd available light source and the 4th available light source timesharing enter in the light-receiving member 210, obtain the hot spot of different colours, and then constitute required display frame.
Fig. 6 is the diagrammatic cross-section of the wavelength converting member in the embodiment of the invention.Fig. 7 is the schematical top view of the wavelength converting member in the embodiment of the invention.As shown in Figure 6 and Figure 7, in preferred embodiment of the present invention, comprise at least in the described wavelength converting member 207: with described dichroic parts 205 accessibility a plurality of assigned addresses corresponding and mutual a plurality of cavitys and be wrapped in fluorescent powder reflector 64 around described a plurality of cavity independently one by one;
Wherein, be provided with highly reflecting films 63 on the inwall of each cavity, 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 each cavity bottom, (for example, as shown in Figure 6, be coated with on the highly reflecting films of first cavity, 61 bottoms be used to the second wavelength fluorescent powder 611 of being excited to export second light beam with second wavelength, then be coated be used to the three-wavelength fluorescent powder 621 of being excited to export the 3rd light beam with three-wavelength on the highly reflecting films of second cavity, 62 bottoms, the rest may be inferred), be provided with the light transmissive material with predetermined area on the highly reflecting films at each cavity top.
Preferable, as shown in Figure 6, in specific embodiments of the invention, described a plurality of cavitys comprise at least: first cavity 61 and second cavity 62.
Therefore, when described dichroic parts 205 when the driving of driver part 205a is moved to different positions, described dichroic parts 205 can arrive the described second optically focused parts 206 with the beam reflection of the described first optically focused parts 204 outputs, and can project after making institute's beam reflected by the described second optically focused parts 206 on the light transmissive material on the respective cavities top on the described wavelength converting member 207, thereby 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; The described light beam of being excited is after the reflection of the highly reflecting films on the respective cavities inwall, and the light transmissive material from the respective cavities top transmits respective cavities, exports described dichroic parts 205 to by the described second optically focused parts 206 then; Described dichroic parts 205 then can be transmitted through the light beam of this output described light-receiving member 210.
For example, include only primary importance and the second place with described a plurality of assigned addresses, and described a plurality of cavity includes only first cavity 61 and second cavity 62, and primary importance is 61 corresponding with first cavity, the second place and second cavity 62 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 the beam reflection of the described first optically focused parts 204 outputs, and make after the convergence of institute's beam reflected by the described second optically focused parts 206, project on the light transmissive material 610 on first cavity, 61 tops on the described wavelength converting member 207, thereby be transmitted in first cavity 61, shine on the second wavelength fluorescent powder 611 of first cavity, 61 bottoms, make the second wavelength fluorescent powder 611 be excited and export second light beam with second wavelength; Described second light beam is after highly reflecting films 63 reflections on first cavity, 61 inwalls, and the light transmissive material 610 from first cavity, 61 tops transmits first cavity 61, exports described dichroic parts 205 to by the described second optically focused parts 206 then; Described dichroic parts 205 then can be transmitted through second light beam of this output described light-receiving member 210.
In like manner, when described dichroic parts 205 when the driving of driver part 205a is moved to the second place, variation on the angle has taken place with respect to primary importance in the described dichroic parts 205 present located second places, thereby will make the position by the formed hot spot of described dichroic parts 205 beam reflected that corresponding the variation also will be taken place.At this moment, described dichroic parts 205 can be with the beam reflection of the described first optically focused parts 204 outputs, and make after the convergence of institute's beam reflected by the described second optically focused parts 206, project on the light transmissive material 620 on second cavity, 62 tops on the described wavelength converting member 207 (and no longer being on the light transmissive material 610 on first cavity, 61 tops), thereby be transmitted in second cavity 62, shine on the three-wavelength fluorescent powder 621 of second cavity, 62 bottoms, make three-wavelength fluorescent powder 621 be excited and export the 3rd light beam with three-wavelength; Described the 3rd light beam is after highly reflecting films 63 reflections on second cavity, 62 inwalls, and the light transmissive material 620 from second cavity, 62 tops transmits second cavity 62, exports described dichroic parts 205 to by the described second optically focused parts 206 then; Described dichroic parts 205 then can be transmitted through the 3rd light beam of this output described light-receiving member 210.
And the like, when described a plurality of assigned addresses comprise N position, and described a plurality of cavity is when including only N cavity corresponding with a described N position, when described dichroic parts 205 when the driving of driver part 205a is moved to N diverse location, described light-receiving member 210 can receive N kind light beams of different wavelengths.Detailed process does not repeat them here.Preferable, in specific embodiments of the invention, described N is the natural number more than or equal to 2, the concrete value of N also can pre-determine according to practical situations, does not repeat them here.
Preferable, in specific embodiments of the invention, also be provided with heating radiator 65 under a plurality of cavitys of described wavelength converting member 207, be used to whole wavelength converting member 207 to dispel the heat.
In addition, in preferred embodiment of the present invention, when described a plurality of assigned addresses include only primary importance and the second place, and described a plurality of cavity is when including only first cavity 61 and second cavity 62, described driver part 205a can not be CD-ROM drive motor also, but the electromagnet that is connected with power supply (for example, solenoid) can arrange a magnet at described dichroic parts 205 simultaneously.
Preferable, in specific embodiments of the invention, described magnet can be arranged on any end of described dichroic parts 205; Perhaps, described magnet also can be arranged on the close driving shaft 205b place at the middle part of described dichroic parts 205.
For example, Fig. 8 a is driver part in another embodiment of the present invention and the structural representation one of dichroic parts.Shown in Fig. 8 a, in preferred embodiment of the present invention, described driver part 205a is the electromagnet (for example, solenoid) that is connected with power supply; Described dichroic parts 205 are provided with a magnet 205c near the end of described driver part 205a.
Fig. 8 b is driver part in another embodiment of the present invention and the structural representation two of dichroic parts.Shown in Fig. 8 b, in preferred embodiment of the present invention, described driver part 205a is the electromagnet (for example, solenoid) that is connected with power supply, and the magnet on the described dichroic parts 205 is arranged on the close driving shaft 205b place at the middle part of described dichroic parts 205.At this moment, this magnet only needs under the acting force of electromagnet mobile less distance can drive described dichroic parts 205 and moves to primary importance and the second place.
Has different magnetic poles owing to be arranged on the two ends of the magnet 205c on the described dichroic parts 205, and after the 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 to change the direction of current among the solenoid 205a, can change the polarity of this solenoid 205a, therefore, when solenoid 205a is identical near the magnetic pole of the magnetic of an end of described dichroic parts 205 and the end of the close described driver part 205a of described magnet 205c, solenoid 205a will be provided with the end generation thrust of magnet 205c to described dichroic parts 205, change the position of described dichroic parts 205; In like manner, when solenoid 205a is inequality with the magnetic pole of the end of the close described driver part 205a of described magnet 205c near the magnetic of an end of described dichroic parts 205, then solenoid 205a will be provided with the end generation suction of magnet 205c to described dichroic parts 205, also can change the position of described dichroic parts 205.So, only need described dichroic parts 205 to be moved to primary importance or the second place, thereby realize the driving to described dichroic parts 205 according to the direction of current among the steering order change solenoid 205a.
In addition, as Fig. 2, Fig. 4 and shown in Figure 5, in preferred embodiment of the present invention, described light-receiving member 210 can comprise: the 5th collector lens 210a and optical wand 201b;
Wherein, described the 5th collector lens 210a is used for the light beam that enters described the 5th collector lens 201a is assembled processing;
Described optical wand 201b be used for to collect by described the 5th collector lens 201a and assembles light beam after the processing.
Preferable, in specific embodiments of the invention, described light-receiving member 210 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 different assigned addresses, thereby can with by the beam reflection of first LASER Light Source output to the light transmissive material of the different cavitys of described wavelength converting member, 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 and the second place, can obtain corresponding 3 available light source: second available light source, the 3rd available light source and the 4th available light source.And when a plurality of assigned addresses of described dichroic parts are N position, then can obtain corresponding (N+1) individual 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 4th light source, the 3rd optically focused parts and light-receiving member, this method comprises:
To the processing that collimates of first light beam 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 and the second place;
When described dichroic parts are positioned at primary importance, described dichroic parts with the beam reflection 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 being assembled by described dichroic parts beam reflected; Described wavelength converting member is excited to export second light beam according to the light beam that receives, and exports described second light beam to the described second optically focused parts; The described second optically focused parts export described second light beam to described dichroic parts; Described dichroic parts are transmitted through described light-receiving member with described second light beam;
Simultaneously, described the 4th light source exports the 4th light beam to described the 3rd optically focused parts; Described the 3rd optically focused parts export described dichroic parts to after described the 4th light beam is assembled; Described dichroic parts with described the 4th beam reflection to described light-receiving member;
When described dichroic parts are positioned at the second place, described dichroic parts with the beam reflection 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 being assembled by described dichroic parts beam reflected; Described wavelength converting member is excited to export the 3rd light beam according to the light beam that receives, and exports described the 3rd light beam to the described second optically focused parts; The described second optically focused parts export described the 3rd light beam to described dichroic parts; Described dichroic parts are transmitted through described light-receiving member with described the 3rd light beam.
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 different assigned addresses, thereby can with by the beam reflection of first LASER Light Source output to the light transmissive material of the different cavitys of described wavelength converting member, make the different cavitys of described wavelength converting member be excited to export light beams of different wavelengths, 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 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 4th light source, the 3rd optically focused parts and light-receiving member;
Wherein, described first LASER Light Source is used for exporting first light beam to described collimating components;
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 and the second place;
Described dichroic parts are used for when be positioned at primary importance, with the beam reflection of described first optically focused parts output described second optically focused parts extremely; The light beam of described second optically focused parts output is transmitted through described light-receiving member; With the beam reflection of described the 3rd optically focused parts output to described light-receiving member; Also be used for when be positioned at the second place, with the beam reflection of described first optically focused parts output described second optically focused parts extremely; The light beam of described second optically focused parts output is transmitted through described light-receiving member;
The described second optically focused parts, to receive assembled by described dichroic parts beam reflected after export described wavelength converting member to, and export the light beam of described wavelength converting member output to described dichroic parts;
Described wavelength converting member is used for being excited to export second light beam according to the light beam that receives, and exporting described second light beam to the described second optically focused parts when described dichroic parts are positioned at primary importance; Also be used for when described dichroic parts are positioned at the second place, are excited to export the 3rd light beam according to the light beam that receives, and export described the 3rd light beam to the described second optically focused parts;
Described the 4th light source is used for exporting the 4th light beam to described the 3rd optically focused parts;
Described the 3rd optically focused parts are used for and will export described dichroic parts to after described the 4th light beam convergence.
2. light supply apparatus as claimed in claim 1 is characterized in that:
Described driver part is connected with described dichroic parts by driving shaft.
3. light supply apparatus as claimed in claim 1 or 2 is characterized in that:
Described driver part is CD-ROM drive motor.
4. light supply apparatus as claimed in claim 1, it is characterized in that, comprise at least in the described wavelength converting member: with the accessibility a plurality of assigned addresses of described dichroic parts corresponding and mutual a plurality of cavitys and be wrapped in fluorescent powder reflector around described a plurality of cavity independently one by one; Wherein,
Be provided with highly reflecting films on the inwall of each cavity, 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 each cavity bottom, be provided with the light transmissive material with predetermined area on the highly reflecting films at each cavity top.
5. light supply apparatus as claimed in claim 4 is characterized in that, described a plurality of cavitys comprise at least: first cavity and second cavity.
6. as claim 4 or 5 described light supply apparatuses, it is characterized in that:
Be provided with heating radiator under a plurality of cavitys of described wavelength converting member.
7. light supply apparatus as claimed in claim 5 is characterized in that, when described a plurality of assigned addresses include only primary importance and the second place, and described a plurality of cavity is when including only first cavity and second cavity:
Described driver part is the electromagnet that is connected with power supply;
Described dichroic parts are provided with a magnet.
8. 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,
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.
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 4th light source, the 3rd optically focused parts and light-receiving member, this method comprises:
To the processing that collimates of first light beam 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 and the second place;
When described dichroic parts are positioned at primary importance, described dichroic parts with the beam reflection 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 being assembled by described dichroic parts beam reflected; Described wavelength converting member is excited to export second light beam according to the light beam that receives, and exports described second light beam to the described second optically focused parts; The described second optically focused parts export described second light beam to described dichroic parts; Described dichroic parts are transmitted through described light-receiving member with described second light beam;
Simultaneously, described the 4th light source exports the 4th light beam to described the 3rd optically focused parts; Described the 3rd optically focused parts export described dichroic parts to after described the 4th light beam is assembled; Described dichroic parts with described the 4th beam reflection to described light-receiving member;
When described dichroic parts are positioned at the second place, described dichroic parts with the beam reflection 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 being assembled by described dichroic parts beam reflected; Described wavelength converting member is excited to export the 3rd light beam according to the light beam that receives, and exports described the 3rd light beam to the described second optically focused parts; The described second optically focused parts export described the 3rd light beam to described dichroic parts; Described dichroic parts are transmitted through described light-receiving member with described the 3rd light beam.
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.
Priority Applications (2)
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| CN201510133407.6A CN104749867A (en) | 2013-03-19 | 2013-03-19 | Light source device, light source generating method and laser projector including light source device |
| 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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| 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 CN103186026B (en) | 2015-04-22 |
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Also Published As
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| CN104749867A (en) | 2015-07-01 |
| CN103186026B (en) | 2015-04-22 |
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Commission number: 4W104244 Conclusion of examination: Claims 1-3, 8, 9, the technical scheme of claim 1-3 and 8 contained in claim 10 is invalid; and the patent is valid on the basis of claim 4-7 and claim 10, including the technical scheme of claim 4-7. Decision date of declaring invalidation: 20161026 Decision number of declaring invalidation: 30283 Denomination of invention: Light source device, light source generation method and laser projector with light source device Granted publication date: 20150422 Patentee: HISENSE Co.,Ltd. |
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