CN105425522A - Light source device and image display device - Google Patents
Light source device and image display device Download PDFInfo
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- CN105425522A CN105425522A CN201510980688.9A CN201510980688A CN105425522A CN 105425522 A CN105425522 A CN 105425522A CN 201510980688 A CN201510980688 A CN 201510980688A CN 105425522 A CN105425522 A CN 105425522A
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- light
- light beam
- fluorescent wheel
- laser instrument
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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
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- Engineering & Computer Science (AREA)
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- Optics & Photonics (AREA)
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Abstract
The embodiment of the invention provides a light source device and an image display device. The light source device comprises at least two groups of laser systems and a fluorescent wheel, wherein each group of laser systems comprises a group of laser devices and a group of transmitting optical components; the fluorescent wheel comprises a fluorescent wheel substrate; the fluorescent wheel substrate comprises fluorescent regions and transmission regions, which correspond to each group of laser devices; each fluorescent region corresponding to each group of laser devices is used for sending out at least one second light beam which is different from a first light beam in wavelength under irradiation of the first light beam generated by the laser devices; each transmission region corresponding to each group of laser devices is used for transmitting the first light beam generated by the laser devices; and each transmitting optical component is also used for merging the first light beam and the second light beam to form a mixed white light. Therefore, the output brightness of the light source device and the image display device is improved.
Description
Technical field
The embodiment of the present invention relates to light source technology, particularly relates to a kind of light supply apparatus and image display apparatus.
Background technology
Under normal circumstances, in image display apparatus (as projector), the laser adopting one group of laser instrument to produce as the light source of image display apparatus more, wherein, laser is irradiated to the reflection generating unit of image display apparatus after some optical elements (as catoptron, convex lens or concavees lens etc.), to form image to be displayed; Generally, the light source output brightness of image display apparatus is about 6000-10000 lumen, and the output brightness of image display apparatus is about 3000 lumens accordingly.The scenes such as cinema are widely used in along with image display apparatus, the output brightness increase in demand to image display apparatus, the output brightness (being about 3000 lumens) of current image display apparatus can not meet brightness requirement; Therefore, the light source output brightness how improving image display apparatus is the technical matters being badly in need of solving.
In prior art, by increasing the power of laser instrument, to improve the output brightness of image display apparatus LASER Light Source, thus improve the output brightness of image display apparatus; But along with the output brightness of LASER Light Source increases, due to laser thermal effect, the transmitance of optical element and serviceable life can constantly reduce, thus can have a strong impact on the serviceable life of image display apparatus.
Summary of the invention
The embodiment of the present invention provides a kind of light supply apparatus and image display apparatus, improves the output brightness of light supply apparatus and image display apparatus.
First aspect, the embodiment of the present invention provides a kind of light supply apparatus, comprising:
At least two group laser system and fluorescent wheels; Often organize described laser system to comprise: one group of laser instrument and one group of transmission optics assembly; Described fluorescent wheel comprises: fluorescent wheel substrate; Described fluorescent wheel substrate comprises: often organize phosphor region corresponding to described laser instrument and transmission area;
Wherein, described laser instrument is often organized for generation of the first light beam at least comprising first wave length light;
Often organize described transmission optics assembly to be used for: described first beam Propagation produced by the laser instrument of correspondence is to described fluorescent wheel;
The phosphor region often organizing described laser instrument corresponding is used for: send under the irradiation of the first light beam produced at described laser instrument and comprise the second light beam that at least one is different from the wavelength of described first light beam;
The transmission area often organizing described laser instrument corresponding is used for: the first light beam that laser instrument described in transmission produces;
Described transmission optics assembly also for: described first light beam and described second light beam are carried out conjunction light, formed mixed white light.
Second aspect, the embodiment of the present invention provides a kind of image display apparatus, comprising:
Guide-lighting optical system, reflection generating unit and the light supply apparatus as described in above-mentioned first aspect.
Light supply apparatus in the present invention, comprising: at least two group laser system and fluorescent wheels; Often organize described laser system to comprise: one group of laser instrument and one group of transmission optics assembly; Described fluorescent wheel comprises: fluorescent wheel substrate; Described fluorescent wheel substrate comprises: often organize phosphor region corresponding to described laser instrument and transmission area; Wherein, described laser instrument is often organized for generation of first light beam at least with first wave length light; Often organize described transmission optics assembly to be used for: described first beam Propagation produced by the laser instrument of correspondence is to described fluorescent wheel; The phosphor region often organizing described laser instrument corresponding is used for: send under the irradiation of the first light beam produced at described laser instrument and comprise the second light beam that at least one is different from the wavelength of described first light beam; The transmission area often organizing described laser instrument corresponding is used for: the first light beam that laser instrument described in transmission produces; Described transmission optics assembly also for: described first light beam and described second light beam are carried out conjunction light, formed mixed white light.Visible, compared to passing through the mode increasing laser power in prior art, light supply apparatus of the present invention comprises at least two group laser systems and is provided with the fluorescent wheel often organizing phosphor region corresponding to described laser system and transmission area, the first light beam that the laser instrument often organized in described laser system produces exposes to the light beam that region corresponding on described fluorescent wheel produces same color simultaneously, and export a branch of mixed white light by corresponding transmission optics assembly simultaneously, and then at least two bundle mixed white light superpositions can be obtained the mixed white light of high brightness, thus can on the basis not affecting light supply apparatus serviceable life, improve the output brightness of light supply apparatus, and then improve the output brightness of image display apparatus, further, phosphor region corresponding to described laser instrument and transmission area is often organized because the fluorescent wheel substrate in light supply apparatus of the present invention comprises, correspondingly can organize laser instrument activating system by fluorescent wheel parts more, the usage quantity of the driver part of fluorescence converting member and correspondence thereof can be reduced, be beneficial to the simplification of light source framework.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1A is the structural representation of light supply apparatus embodiment one of the present invention;
Figure 1B is that fluorescent wheel substrate regions divides schematic diagram one;
Fig. 1 C is that fluorescent wheel substrate regions divides schematic diagram two;
Fig. 2 A is the structural representation of light supply apparatus embodiment two of the present invention;
Fig. 2 B be light supply apparatus neutralizing light prism schematic diagram is set;
Fig. 2 C is the structural representation of light supply apparatus embodiment three of the present invention;
Fig. 2 D is the light path schematic diagram of light supply apparatus embodiment three of the present invention;
Fig. 3 A is the structural representation of light supply apparatus embodiment four of the present invention;
Fig. 3 B is the structural representation of light supply apparatus embodiment five of the present invention;
Fig. 3 C is the light path schematic diagram of light supply apparatus embodiment five of the present invention;
Fig. 4 is the structural representation of image display apparatus embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
Figure 1A is the structural representation of light supply apparatus embodiment one of the present invention, and as shown in Figure 1A, light supply apparatus comprises: at least two group laser systems 10 and fluorescent wheel 11; Alternatively, be described to comprise two groups of laser systems 10 in the present embodiment; Often organize described laser system to comprise: one group of laser instrument 100 and one group of transmission optics assembly 101, alternatively, described one group of laser instrument can comprise: at least two laser instruments; Described fluorescent wheel 11 comprises: (alternatively, described fluorescent wheel substrate can be transmission-type substrate or reflective substrate to fluorescent wheel substrate; The motor that described fluorescent wheel is arranged by center rotates); Described fluorescent wheel substrate comprises: often organize phosphor region corresponding to described laser instrument and transmission area, only comprise one in the light supply apparatus of the i.e. embodiment of the present invention and be provided with the fluorescent wheel often organizing phosphor region corresponding to described laser instrument and transmission area, therefore, compared to existing fluorescent wheel, fluorescent wheel area in the present embodiment can arrange relatively large, requires to reduce on the one hand, simultaneously to the space length between above-mentioned at least two group laser systems, fluorescent wheel substrate area is larger, compares and is beneficial to heat radiation; Alternatively, the fluorescent wheel substrate that each described transmission area is corresponding can be clear glass or frosted glass.Wherein, described laser instrument 100 is often organized for generation of the first light beam at least comprising first wave length light; Alternatively, described laser instrument 100 can be mono-colour laser or two-color laser device, such as 1) and when described laser instrument 100 is mono-colour laser, described laser instrument is for generation of the first light beam comprising first wave length light (as blue light); 2) when described laser instrument 100 is two-color laser device, described laser instrument is for generation of the first light beam comprising first wave length light (as blue light) and second wave length light (as red light).Wherein, described transmission optics assembly 101 is often organized for: described first beam Propagation produced by the laser instrument 100 of correspondence to described fluorescent wheel 11; The phosphor region often organizing described laser instrument corresponding is used for: send under the irradiation of the first light beam of described laser instrument 100 generation and comprise the second light beam that at least one is different from the wavelength of described first light beam; The transmission area often organizing described laser instrument corresponding is used for: described first light beam that laser instrument described in transmission produces; Alternatively, 1) when described laser instrument 100 is mono-colour laser (such as described laser instrument is for generation of the first light beam comprising blue light), the phosphor region often organizing described laser instrument corresponding is used for: send under the irradiation of the first light beam of described laser instrument 100 generation and comprise the second light beam (namely described second light beam comprises the wavelength light that at least two kinds are different from the wavelength of described first light beam, such as, at least comprises red light and green light in described second light beam) that at least two kinds are different from the wavelength of described first light beam; Accordingly, the transmission area often organizing described laser instrument corresponding is used for: transmission comprise first wave length light (as blue light) as described in the first light beam; 2) when described laser instrument 100 is twin-laser (such as described laser instrument is for generation of the first light beam comprising blue light and red light), the phosphor region often organizing described laser instrument corresponding is used for: send under the irradiation of the first light beam of described laser instrument 100 generation and comprise the second light beam (namely described second light beam comprises the wavelength light that at least one is different from the wavelength of described first light beam, such as, at least comprises green light in described second light beam) that at least one is different from the wavelength of described first light beam; Accordingly, the transmission area often organizing described laser instrument corresponding is used for: transmission comprise first wave length light (as blue light) and second wave length light (as red light) as described in the first light beam.
Further, described transmission optics assembly 101 also for: described first light beam and described second light beam are carried out conjunction light, formed mixed white light; Further, the mixed white light often organizing the output of described transmission optics assembly transfers to light optical system and reflection generating unit successively, is embodied as the object that described reflection generating unit provides higher source luminance.Visible, compared to passing through the mode increasing laser power in prior art, in the embodiment of the present invention, the transmission optics assembly often organizing described laser system all can export a branch of mixed white light simultaneously, and then at least two bundle mixed white light superpositions can be obtained the mixed white light of high brightness, thus on the basis not affecting light supply apparatus serviceable life, the output brightness of light supply apparatus can be improve, and then improve the output brightness of image display apparatus; Further, phosphor region corresponding to described laser instrument and transmission area is often organized because the fluorescent wheel substrate in the light supply apparatus of the embodiment of the present invention comprises, correspondingly can organize laser instrument activating system by fluorescent wheel parts more, the usage quantity of the driver part of fluorescence converting member and correspondence thereof can be reduced, be beneficial to the simplification of light source framework.
Alternatively, described at least two group laser systems 10 are symmetrical arranged centered by the central shaft of described fluorescent wheel 11 (alternatively, if comprise two groups of laser systems 10, is then symmetrical arranged up and down centered by the central shaft of described fluorescent wheel 11; If comprise three groups of laser systems 10, be then symmetrical arranged centered by the central shaft of described fluorescent wheel 11, between two groups of adjacent laser systems 10, differ 120 degree).
When the laser instrument that described at least two group laser systems are corresponding irradiates simultaneously, the laser produced to make often to organize described laser instrument is irradiated to the phosphor region (namely simultaneously producing the light beam of same color) of identical type, alternatively, often organize the irradiation area that described laser instrument is corresponding different on described fluorescent wheel substrate, and the irradiation area of the described laser instrument of each group correspondence on described fluorescent wheel substrate is uniformly distributed centered by the center of circle of described fluorescent wheel; Wherein, each described irradiation area comprises: described phosphor region and described transmission area.Figure 1B is that fluorescent wheel substrate regions divides schematic diagram one, and as shown in Figure 1B, when light supply apparatus comprises two groups of laser instruments, described fluorescent wheel substrate is divided into symmetrical two groups of irradiation areas (often organizing irradiation area to comprise: phosphor region and transmission area); The all corresponding one group of laser instrument of often group irradiation area of fluorescent wheel substrate.Alternatively, when light supply apparatus comprises N group laser instrument, described fluorescent wheel substrate is on average divided into N group irradiation area (often organizing irradiation area to comprise: phosphor region and transmission area) centered by the center of circle of described fluorescent wheel, often organizing angle shared by irradiation area is 360/N (degree), wherein, N is positive integer.
Alternatively, often organize described laser instrument for generation of the first light beam (laser instrument is namely mono-colour laser) comprising first wave length light (as blue light), the described phosphor region often organizing described laser instrument corresponding comprises: the first phosphor region and the second phosphor region; Wherein, fluorescent wheel substrate surface corresponding to described first phosphor region is coated with the first fluorescent powder, (alternatively, at least comprise in described 3rd light beam: described second wave length light for sending the 3rd light beam comprising second wave length light (as red light) under the irradiation of described first light beam that produces at described laser instrument; Such as described 3rd light beam comprises the yellow light beam of red light); Fluorescent wheel substrate surface corresponding to described second phosphor region is coated with the second fluorescent powder, and the irradiation for described first light beam produced at described laser instrument issues out the 4th light beam with the 3rd wavelength (as green light); Namely described second light beam comprises: described 3rd light beam and described 4th light beam.Fig. 1 C is that fluorescent wheel substrate regions divides schematic diagram two, as shown in Figure 1 C, when light supply apparatus comprises two groups of laser instruments, described fluorescent wheel substrate is divided into symmetrical two groups of irradiation areas (often organizing irradiation area to comprise: the first phosphor region, the second phosphor region and transmission area).
Alternatively, often organize described laser instrument for generation of the first light beam (laser instrument is namely two-color laser device) comprising first wave length light (as blue light) and second wave length light (as red light), the fluorescent wheel substrate surface often organizing described phosphor region corresponding to described laser instrument corresponding is coated with the second fluorescent powder, irradiation for the described first wave length light (as blue light) produced at described laser instrument issues out the 4th light beam with the 3rd wavelength (as green light), and namely described second light beam comprises described 4th light beam; Accordingly, described transmission area comprises: the transmission area (for first wave length light described in transmission) of described first wave length light and the transmission area (for second wave length light described in transmission) of described second wave length light.
Embodiment two
Fig. 2 A is the structural representation of light supply apparatus embodiment two of the present invention, on the basis of above-described embodiment, described fluorescent wheel 11 be reflective fluorescent wheel (alternatively, described fluorescent wheel substrate is that aluminium is aluminized substrate or aluminium silvered substrates, other parts in described fluorescent wheel substrate except being coated with the phosphor region of fluorescent powder and transmission area have reflex), often organize described transmission optics assembly 101 to comprise: close light microscopic sheet 101a (alternatively, described conjunction light microscopic sheet can be dichroic mirror or other conjunction light parts, the present embodiment is not restricted this), first convergent lens 101b and turn to relay lens group 101c (alternatively, the described relay lens group that turns to is made up of at least three the first catoptrons and at least three relay lens), wherein, described conjunction light microscopic sheet 101a be provided with for the first light beam described in transmission and reflect the rete of described second light beam, wherein, 1) described conjunction light microscopic sheet 101a is used for: the first light beam that the laser instrument through correspondence produces, and by described first beam Propagation to described fluorescent wheel, 2) described fluorescent wheel 11 also for: under the reflex of fluorescent wheel substrate, described second beam reflection produced by described fluorescent wheel is to described conjunction light microscopic sheet, by through described fluorescent wheel the first beam Propagation to described in turn to relay lens group, 3) described conjunction light microscopic sheet 101a also for: by described second beam reflection that is reflected back by described fluorescent wheel to described first convergent lens, 4) turn to relay lens group 101c for the transmission direction adjusting the first light beam through described fluorescent wheel described in, make described first beam Propagation to described conjunction light microscopic sheet, 5) described conjunction light microscopic sheet 101a also for: by by described the first beam Propagation turning to relay lens group to launch to described first convergent lens, 6) described first convergent lens 101b is used for: described second light beam launched by described conjunction light microscopic sheet and described first light beam are compressed, and forms convergent beam (i.e. mixed white light), so that described convergent beam easily enters even smooth parts 12.
In order to described second light beam and described first light beam that make the described first convergent lens transmission often organized in described laser system enter even smooth parts (such as optical wand) efficiently, alternatively, the porch of described even smooth parts also can be provided with the parts for changing optical path direction, such as plane mirror or light-combining prism; Alternatively, described device also comprises: light-combining prism (as right-angle prism or triangular prism), and described light-combining prism is used for closing light by by often organizing the mixed white light that described transmission optics assembly transmits and transferring to even smooth parts 12.Fig. 2 B be light supply apparatus neutralizing light prism schematic diagram is set, as shown in Figure 2 B, described light-combining prism by reflecting surface by: often organize in described laser system described first convergent lens transmission convergent beam all reflex to described even smooth parts.Alternatively, described even smooth parts are positioned on the central axis of described fluorescent wheel 11.
Visible, in the light supply apparatus of the embodiment of the present invention, organize laser instrument activating system by a reflective fluorescent wheel correspondence more, to form at least two bundle mixed white light, and then the described mixed white light superposition of at least two bundles can be obtained the mixed white light of high brightness, thus not only increase the output brightness of light supply apparatus, be beneficial to the simplification of light source framework simultaneously.
Embodiment three
Fig. 2 C is the structural representation of light supply apparatus embodiment three of the present invention, on the basis of above-mentioned Fig. 2 A and Fig. 2 B, often organizes described transmission optics assembly 101 and also comprises: the first collimation lens set 101d and the second collimation lens set 101e; Wherein, described first collimation lens set 101d is arranged between described conjunction light microscopic sheet 101a and described fluorescent wheel 11; Described first collimation lens set 101d and described second collimation lens set 101e is symmetricly set in the both sides of described fluorescent wheel substrate.Wherein, described first collimation lens set 101d is used for: collimated by the first light beam through described conjunction light microscopic sheet 101a, and fluorescent wheel 11 described in directive; The dispersion angle of described second light beam produced due to described fluorescent wheel is very large and directivity is indefinite, described first collimation lens set 101d also for: described second light beam be reflected back by described fluorescent wheel 11 is collimated, and described in directive, closes light microscopic sheet 101a; Described second collimation lens set 101e is used for: collimated by the first light beam through described fluorescent wheel 11, and turn to relay lens group 101c described in transferring to.Alternatively, described first collimation lens set and described second collimation lens set respectively comprise: two convex lens.
Alternatively, often organize described transmission optics assembly 101 also to comprise: the first contracting beam system 101f; Wherein, described first contracting beam system 101f is arranged between corresponding laser instrument 100 and described conjunction light microscopic sheet 101a.Alternatively, described first contracting beam system comprises: convex lens and concavees lens.
Alternatively, often the one group of laser instrument 100 organized in laser system can comprise: the vertical laser instrument row placed of two rows, and wherein, each described laser instrument row comprise: at least two laser instruments.Alternatively, when described one group of laser instrument 100 comprises: during the laser instrument row that two rows vertically place, between the vertical laser instrument row placed of described two rows, 45 degree of direction lines are provided with catoptron, it is a road light beam that described catoptron is used for two row's laser instruments to arrange the Laser synthesizing produced, and the first contracting beam system described in directive.
Be used for for the phosphor region often organizing described laser instrument corresponding below: send the second light beam (comprising yellow light beam and green beam) under the irradiation of the blue light beam produced at described laser instrument, optic path direction and path are described in detail.Fig. 2 D is the light path schematic diagram of light supply apparatus embodiment three of the present invention, adopt three kinds of form arrows to represent optic path direction and the path of blue light beam, yellow light beam and green beam respectively in figure, be described in detail for the first group of laser system of the first half in Fig. 2 D below.As shown in Figure 2 D, the blue light beam that the area of first group of laser instrument 100 generation is larger forms the less and parallel blue light beam of a branch of area through the first contracting beam system 101f, directive closes light microscopic sheet 101a (alternatively, described conjunction light microscopic sheet 101a is provided with for blue light beam described in transmission and reflects the rete of described green beam and described yellow light beam), described blue light beam is irradiated to the first collimation lens set 101d through the transmission of closing light microscopic sheet 101a, described blue light beam reduces and directive fluorescent wheel substrate further through the collimated beam sizes of described first collimation lens set 101d, along with the rotation of fluorescent wheel 11, described blue light beam can be irradiated to described first phosphor region (can send yellow light beam under the irradiation of described blue light beam) in fluorescent wheel substrate successively, described second phosphor region (can green beam be sent under the irradiation of described blue light beam) and described transmission area (described in meeting transmission blue light beam), 1) on the one hand, described second collimation lens set 101e is transferred to through the blue light beam of described fluorescent wheel 11 by described transmission area, described blue light beam through described second collimation lens set 101e collimation directive described in turn to relay lens group 101c, turn to relay lens group 101c to the adjustment of transmission direction described in passing through, described blue light beam is back to described conjunction light microscopic sheet 101a again, and enter described first convergent lens 101b through described conjunction light microscopic sheet 101a, 2) on the other hand, due to the reflex of described fluorescent wheel substrate, the yellow light beam that described fluorescent wheel produces by described fluorescent wheel 11 and green beam reflex to described first collimation lens set 101d, described yellow light beam and green beam through described first collimation lens set 101d collimation directive described in close light microscopic sheet, and through the bounce transmission of described conjunction light microscopic sheet 101a to described first convergent lens 101b, further, through described conjunction light microscopic sheet 101a enter described first convergent lens 101b blue light beam, compress in described first convergent lens 101b to the yellow light beam of described first convergent lens 101b and green beam through the bounce transmission of described conjunction light microscopic sheet 101a, form convergent beam, and expose to described even smooth parts 12 by light-combining prism.Visible, in the present embodiment, the transmission optics assembly often organizing described laser system all can export a branch of mixed white light simultaneously, by light-combining prism, the described mixed white light superposition of at least two bundles is obtained the mixed white light of high brightness, thus improves the output brightness of light supply apparatus.
Alternatively, often organize described in laser system and also can be provided with heat radiator between the first contracting beam system 101f and described conjunction light microscopic sheet 101a, described heat radiator is used for: the blue light beam after homogenising contracting bundle, local overheating can be caused to prevent the optical density unevenness due to blue light beam even and to cause being irradiated on fluorescent wheel, thus fluorescent powder and matrix be caused to the problem of burning.
Embodiment four
Fig. 3 A is the structural representation of light supply apparatus embodiment four of the present invention, on the basis of above-described embodiment one, described fluorescent wheel 11 be transmission-type fluorescent wheel (alternatively, be provided with for the first light beam described in transmission on the face of described laser instrument in described fluorescent wheel substrate and reflect the rete of described second light beam), often organize described transmission optics assembly 101 and comprise: light path redirector part 101g and the second convergent lens 101h; Wherein, described light path redirector part 101g and described second convergent lens 101h is arranged at the homonymy of described fluorescent wheel substrate; Wherein, 1) described fluorescent wheel 11 is also for described second light beam produced through described fluorescent wheel, and by described first light beam and described second beam Propagation to described light path redirector part 101g; 2) described light path redirector part 101g is used for: by through the first light beam of described fluorescent wheel and described second beam reflection to described second convergent lens 101h; 3) described second convergent lens 101h is used for: described first light beam reflected by described light path redirector part and described second light beam are compressed, form convergent beam (i.e. mixed white light), so that described convergent beam easily enters even smooth parts 12.
In order to described first light beam and described second light beam that make the described second convergent lens transmission often organized in described laser system enter even smooth parts (such as optical wand) efficiently, alternatively, the porch of described even smooth parts also can be provided with the parts for changing optical path direction, such as plane mirror or light-combining prism; Alternatively, described device also comprises: light-combining prism (as right-angle prism or triangular prism), described light-combining prism is used for closing light by by often organizing the mixed white light that described transmission optics assembly transmits and transferring to even smooth parts 12, similar shown in concrete set-up mode and Fig. 2 B, repeat no more herein.
Visible, in the light supply apparatus of the embodiment of the present invention, organize laser instrument activating system by a transmission-type fluorescent wheel correspondence more, to form at least two bundle mixed white light, and then the described mixed white light superposition of at least two bundles can be obtained the mixed white light of high brightness, thus not only increase the output brightness of light supply apparatus, be beneficial to the simplification of light source framework simultaneously.
Embodiment five
Fig. 3 B is the structural representation of light supply apparatus embodiment five of the present invention, on the basis of above-mentioned Fig. 3 A, the dispersion angle of described second light beam produced due to described fluorescent wheel is very large and directivity is indefinite, often organizes described transmission optics assembly 101 and also comprises: the 3rd collimation lens set 101i; Wherein, described 3rd collimation lens set 101i is arranged between described fluorescent wheel 11 and described light path redirector part 101g; Wherein, described 3rd collimation lens set 101i is used for: collimate through the first light beam of described fluorescent wheel 11 and described second light beam, and light path redirector part 101g described in directive.Alternatively, described 3rd collimation lens set comprises: two convex lens.
Alternatively, often organize described transmission optics assembly 101 also to comprise: the second contracting beam system 101j; Wherein, described second contracting beam system 101j is arranged between corresponding laser instrument 100 and described fluorescent wheel 11.Alternatively, described second contracting beam system 101j comprises: two convex lens.
Be used for for the phosphor region often organizing described laser instrument corresponding below: send the second light beam (comprising yellow light beam and green beam) under the irradiation of the blue light beam produced at described laser instrument, optic path direction and path are described in detail.Fig. 3 C is the light path schematic diagram of light supply apparatus embodiment five of the present invention, adopt three kinds of form arrows to represent optic path direction and the path of blue light beam, yellow light beam and green beam respectively in figure, be described in detail for the first group of laser system of the first half in Fig. 3 C below.As shown in Figure 3 C, the blue light beam that the area of first group of laser instrument 100 generation is larger forms the less and parallel blue light beam of a branch of area through the second contracting beam system 101j, directive fluorescent wheel substrate, along with the rotation of fluorescent wheel 11, described blue light beam can be irradiated to described first phosphor region (can send yellow light beam under the irradiation of described blue light beam) in fluorescent wheel substrate successively, described second phosphor region (can green beam be sent under the irradiation of described blue light beam) and described transmission area (described in meeting transmission blue light beam), 1) on the one hand, described 3rd collimation lens set 101i is transferred to through the blue light beam of described fluorescent wheel 11 by described transmission area, described blue light beam is through the collimation directive light path redirector part 101g of described 3rd collimation lens set 101i, and through bounce transmission to the second convergent lens 101h of light path redirector part 101g, 2) on the other hand, owing to being provided with for transmitting blue light beam and the rete of reflect yellow light beam and green beam on the face of described laser instrument in described fluorescent wheel substrate, the yellow light beam that described fluorescent wheel 11 produces and green beam transfer to described 3rd collimation lens set 101i through described fluorescent wheel 11, described yellow light beam and green beam through the collimation directive light path redirector part 101g of described 3rd collimation lens set 101i, and through bounce transmission to the second convergent lens 101h of light path redirector part 101g, further, the blue light beam reflected by light path redirector part 101g, yellow light beam and green beam compress in the second convergent lens 101h, form convergent beam, and expose to described even smooth parts 12 by light-combining prism.Visible, in the present embodiment, the transmission optics assembly often organizing described laser system all can export a branch of mixed white light simultaneously, by light-combining prism, the described mixed white light superposition of at least two bundles is obtained the mixed white light of high brightness, thus improves the output brightness of light supply apparatus.
Embodiment six
Fig. 4 is the structural representation of image display apparatus embodiment of the present invention, and as shown in Figure 4, the image display apparatus 40 of the embodiment of the present invention comprises: guide-lighting optical system 401, reflection generating unit 402 and light supply apparatus 403; Wherein, described light supply apparatus 403 can adopt the structure of the above-mentioned light supply apparatus any embodiment of the present invention, and it realizes principle and technique effect is similar, repeats no more herein.Alternatively, described guide-lighting optical system comprises: even smooth parts.
Alternatively, described guide-lighting optical system also comprises filter wheel, and wherein, described filter wheel is arranged between described even smooth parts and described reflection generating unit.
The light supply apparatus of the present embodiment image display apparatus organizes laser instrument activating system by a fluorescent wheel correspondence more, to form at least two bundle mixed white light, and then the mixed white light of the high brightness obtained after can restrainting mixed white light superposition using at least two is as the light source of described reflection generating unit, thus can on the basis not affecting light supply apparatus serviceable life, not only increase the output brightness of light supply apparatus and the output brightness of image display apparatus, be beneficial to the simplification of light source framework simultaneously.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (11)
1. a light supply apparatus, is characterized in that, comprising:
At least two group laser system and fluorescent wheels; Often organize described laser system to comprise: one group of laser instrument and one group of transmission optics assembly; Described fluorescent wheel comprises: fluorescent wheel substrate; Described fluorescent wheel substrate comprises: often organize phosphor region corresponding to described laser instrument and transmission area;
Wherein, described laser instrument is often organized for generation of the first light beam at least comprising first wave length light;
Often organize described transmission optics assembly to be used for: described first beam Propagation produced by the laser instrument of correspondence is to described fluorescent wheel;
The phosphor region often organizing described laser instrument corresponding is used for: send under the irradiation of the first light beam produced at described laser instrument and comprise the second light beam that at least one is different from the wavelength of described first light beam;
The transmission area often organizing described laser instrument corresponding is used for: the first light beam that laser instrument described in transmission produces;
Described transmission optics assembly also for: described first light beam and described second light beam are carried out conjunction light, formed mixed white light.
2. light supply apparatus according to claim 1, it is characterized in that, often organize the irradiation area that described laser instrument is corresponding different on described fluorescent wheel substrate, and the irradiation area of the described laser instrument of each group correspondence on described fluorescent wheel substrate is uniformly distributed centered by the center of circle of described fluorescent wheel; Wherein, each described irradiation area comprises: described phosphor region and described transmission area.
3. light supply apparatus according to claim 2, is characterized in that, often organize described laser instrument for generation of the first light beam comprising first wave length light, described phosphor region comprises: the first phosphor region and the second phosphor region;
Fluorescent wheel substrate surface corresponding to described first phosphor region is coated with the first fluorescent powder, sends under the irradiation of described first light beam that produces at described laser instrument the 3rd light beam comprising second wave length light;
Fluorescent wheel substrate surface corresponding to described second phosphor region is coated with the second fluorescent powder, and the irradiation for described first light beam produced at described laser instrument issues out the 4th light beam with the 3rd wavelength;
Described second light beam comprises: described 3rd light beam and described 4th light beam.
4. light supply apparatus according to claim 2, it is characterized in that, often organize described laser instrument for generation of the first light beam comprising first wave length light and second wave length light, fluorescent wheel substrate surface corresponding to described phosphor region is coated with the second fluorescent powder, and the irradiation for the described first wave length light produced at described laser instrument issues out the 4th light beam with the 3rd wavelength;
Described transmission area comprises: the transmission area of described first wave length light and the transmission area of described second wave length light.
5. light supply apparatus according to claim 1, is characterized in that, described at least two group laser systems are symmetrical arranged centered by the central shaft of described fluorescent wheel.
6. light supply apparatus according to claim 1, is characterized in that, described device also comprises: light-combining prism;
Described light-combining prism is used for: close light by by often organizing the mixed white light that described transmission optics assembly transmits and transfer in even smooth parts.
7. the light supply apparatus according to any one of claim 1-6, is characterized in that, described fluorescent wheel is reflective fluorescent wheel, often organizes described transmission optics assembly and comprises: close light microscopic sheet, the first convergent lens and turn to relay lens group; Wherein, described conjunction light microscopic sheet be provided with for the first light beam described in transmission and reflect the rete of described second light beam;
Described conjunction light microscopic sheet is used for: the first light beam that the laser instrument through correspondence produces, and by described first beam Propagation to described fluorescent wheel;
Described fluorescent wheel also for: described second beam reflection that described fluorescent wheel is produced to described conjunction light microscopic sheet; By through described fluorescent wheel the first beam Propagation to described in turn to relay lens group;
Described conjunction light microscopic sheet also for: by described second beam reflection that is reflected back by described fluorescent wheel to described first convergent lens;
The described relay lens group that turns to, for the transmission direction adjusting the first light beam through described fluorescent wheel, makes described first beam Propagation to described conjunction light microscopic sheet;
Described conjunction light microscopic sheet also for: by by described the first beam Propagation turning to relay lens group to launch to described first convergent lens;
Described first convergent lens is used for: described second light beam launched by described conjunction light microscopic sheet and described first light beam are compressed, and forms convergent beam.
8. light supply apparatus according to claim 7, is characterized in that, often organizes described transmission optics assembly and also comprises: the first contracting beam system; Wherein, described first contracting beam system is arranged between corresponding laser instrument and described conjunction light microscopic sheet.
9. the light supply apparatus according to any one of claim 1-6, is characterized in that, described fluorescent wheel is transmission-type fluorescent wheel, often organizes described transmission optics assembly and comprises: light path redirector part and the second convergent lens; Wherein, described light path redirector part and described second convergent lens are arranged at the homonymy of described fluorescent wheel substrate; Be provided with for the first light beam described in transmission on the face of described laser instrument in described fluorescent wheel substrate and reflect the rete of described second light beam;
Described fluorescent wheel also for described second light beam that produces through described fluorescent wheel, and by described first light beam and described second beam Propagation to described light path redirector part;
Described light path redirector part is used for: by through described first light beam of described fluorescent wheel and described second beam reflection to described second convergent lens;
Described second convergent lens is used for: described first light beam reflected by described light path redirector part and described second light beam are compressed, and forms convergent beam.
10. light supply apparatus according to claim 9, is characterized in that, often organizes described transmission optics assembly and also comprises: the second contracting beam system; Wherein, described second contracting beam system is arranged between corresponding laser instrument and described fluorescent wheel.
11. 1 kinds of image display apparatus, is characterized in that, comprising: guide-lighting optical system, reflection generating unit and the light supply apparatus according to any one of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980688.9A CN105425522A (en) | 2015-12-23 | 2015-12-23 | Light source device and image display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510980688.9A CN105425522A (en) | 2015-12-23 | 2015-12-23 | Light source device and image display device |
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| CN105425522A true CN105425522A (en) | 2016-03-23 |
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| CN201510980688.9A Pending CN105425522A (en) | 2015-12-23 | 2015-12-23 | Light source device and image display device |
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Application publication date: 20160323 |