CN105301879A - Light source apparatus and optical imaging and displaying device including light source apparatus - Google Patents
Light source apparatus and optical imaging and displaying device including light source apparatus Download PDFInfo
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- CN105301879A CN105301879A CN201410377087.4A CN201410377087A CN105301879A CN 105301879 A CN105301879 A CN 105301879A CN 201410377087 A CN201410377087 A CN 201410377087A CN 105301879 A CN105301879 A CN 105301879A
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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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- 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
- G03B33/00—Colour photography, other than mere exposure or projection of a colour film
- G03B33/08—Sequential recording or projection
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
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- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The invention provides a light source apparatus and an optical imaging and displaying device including the light source apparatus. The light source apparatus includes a substrate capable of rotating around the axe and having a surface on which a wavelength conversion zone is provided, and a light path conversion device, wherein the substrate is arranged at a predetermined angle relative to a surface on which the light source apparatus is located, and the light path conversion device is configured to direct an incoming light beam from a first light emitting unit to an optical processing part which is on the surface of the substrate and includes the wavelength conversion zone, and to direct the wavelength-converted light beam to a light receiving device.
Description
Technical field
Disclosure relate generally to optical field, relates to projection display technique particularly, especially relates to a kind of light source and uses the optical imagery display device of this light source.
Background technology
Projector is a kind of optical imagery display device being used for amplifying display image, and it is widely used in family, office, school and public place of entertainment.The principle of projector is the light of projection lamp to be divided into red, green, blue three look, then produces the image of shades of colour, projects on screen finally by camera lens.Color-separated can be passed through colour wheel (colour disk) and realize.Particularly, colour wheel is coated with over an annular region and can inspires fluorescent powder that is red, green or blue light from the light beam that light source sends, and make it rotate by high-speed motor, then order separates different monochromatic (singlecolored) light in the light path of specifying.
In projector, light-source system is important basic components.Reduce energy consumption in order to the efficiency improving projector light source system simultaneously and reduce projector's volume, LASER Light Source technology is arisen at the historic moment.Knownly, there are two kinds of laser projections: one is directly write on screen laser beam, and it is not focus of the present disclosure, therefore will describe in detail no longer here; Another kind uses exciting laser (diode laser) as the pumping source utilizing the material for transformation of wave length of such as fluorescent powder to carry out remote conversion, such as LARP (laser active long-distance fluorescent powder is changed, LaserActivatedRemotePhosphorconversion).For rear a kind of laser projection, projector uses laser as light source, makes display image have higher color saturation, and possesses the advantage of long service life.But, along with the continuous increase of laser power, the diameter of colour wheel also must correspondingly increase the performance and used life guaranteeing colour wheel, this is because the fluorophor that the performance of colour wheel may cause due to the Stokes shift of transition period (StokesShift) heats the heat dissipation that causes and demotes.When the diameter of colour wheel is greater than the projector's size in its radial direction, the diameter of colour wheel becomes a bottleneck problem in the fuselage compactedness of projector.
In order to solve the problem, prior art file WO2011160680A1 discloses so a kind of light source.In one of them embodiment disclosed in it, as shown in Figure 1, polygon colour wheel 20 applies fluorescent powder on the edge that it thickens, and white light source irradiates the edge of colour wheel under predetermined angular.Will be appreciated that, lasing light emitter also can be used to replace white light source.
Although above-mentioned prior art can by apply on the thickening edge of colour wheel fluorescent powder solve along with laser power increase and therefore must increase the problem of colour wheel diameter to the increase of the demand of the heat dissipation improved, but colour wheel thickens and structure can be caused to realize complicated and cost increases.
Summary of the invention
In order to solve above-mentioned the problems of the prior art, according to an aspect, present disclose provides a kind of light source, comprise it and be provided with wavelength conversion region on the surface and the substrate that can rotate around its axle and optical path switching device, wherein, described substrate is arranged to the face placed thereon relative to described light source and becomes predetermined angular, and described optical path switching device is configured to the incident beam from the first luminescence unit to guide on described substrate surface, comprise the optical processing part of described wavelength conversion region, and the light beam through wavelength convert is guided to optical pickup apparatus.
Alternatively, aforesaid substrate is colour wheel.
Alternatively, above-mentioned predetermined angular is more than or equal to 0 degree and is less than 90 degree, preferably equals 0 degree.
Alternatively, above-mentioned optical path switching device to be configured to the above-mentioned beam reflection through wavelength convert in the direction being parallel to above-mentioned incident beam on above-mentioned optical pickup apparatus.
Alternatively, above-mentioned optical path switching device comprises the first optical element, second optical element, 3rd optical element and the 4th optical element, and wherein, above-mentioned first optical element, second optical element and the 3rd optical element are arranged to T-shaped, and the first optical element is perpendicular to the second optical element and the 3rd optical element, above-mentioned 4th optical element is positioned at aforesaid substrate and the first optical element, between second optical element and the 3rd optical element, first reflected by the first optical element to make incident beam, then the second optical element is transmitted through, and be transmitted through the 4th optical element and be directed to above-mentioned optical processing part, and be directed to above-mentioned optical pickup apparatus through the light beam of wavelength convert via the 3rd optical element and the second optical element.
Alternatively, above-mentioned first optical element is catoptron, and above-mentioned second optical element is dichroic mirror or color splitting and mixing block prism X-cube, and above-mentioned 4th optical element is lens, and above-mentioned 3rd optical element is:
Catoptron, to make the light beam through wavelength convert, or through the light beam of wavelength convert and incident beam, the beam section that reflected by aforesaid substrate, through reflexing on above-mentioned optical pickup apparatus by the 3rd optical element after being transmitted through the 4th optical element; Or
Dichroic mirror or color splitting and mixing block prism X-cube, to make the light beam through wavelength convert through being reflexed on above-mentioned optical pickup apparatus by the 3rd optical element after being transmitted through the 4th optical element, and described incident beam, the beam section that reflected by aforesaid substrate goes out from the 3rd optical element transmission and is not directed to described optical pickup apparatus after being transmitted through the 4th optical element.
Alternatively, also comprise the 5th optical element according to light source of the present disclosure, it is configured to the light beam from second luminescence unit different from above-mentioned first luminescence unit directly to reflex on above-mentioned optical pickup apparatus.
Alternatively, above-mentioned 5th optical element is dichroic mirror or color splitting and mixing block prism X-cube.
Alternatively, the optical processing part on aforesaid substrate surface also comprises reflector space, for reflecting the segment beam being directed to this reflector space in incident beam thus obtaining in a time-sequential manner from the light beam that described substrate exports, wherein, the intensity of folded light beam can be adjusted according to the ratio of this reflector space and above-mentioned wavelength conversion region.
Alternatively, the optical processing part on aforesaid substrate surface also comprises reflector space, for reflecting the segment beam being directed to this reflector space in incident beam, wherein, incident beam is directed to the intersection of this reflector space and above-mentioned wavelength conversion region to obtain sequential and the light beam exported continuously from described substrate simultaneously.
Alternatively, above-mentioned second optical element is configured to make the light beam from the 3rd luminescence unit in the direction being parallel to incident beam, directly be transmitted through the second optical element and arrive above-mentioned optical pickup apparatus, and wherein the 3rd luminescence unit is different from above-mentioned first luminescence unit and the second luminescence unit.
According to another aspect of the present disclosure, provide a kind of optical imagery display device comprised according to light source of the present disclosure.Alternatively, this optical imagery display device can be projector.
By using according to light source of the present disclosure, by by substrate, such as colour wheel inclination certain angle and optical element is suitably set so that incident beam is guided to optical pickup apparatus, the diameter of colour wheel can be increased to bear stronger incident laser power, and compactedness and the terseness of projector can not be affected.In addition, when using lasing light emitter, according to light source of the present disclosure by offseting substrate slightly simply in radial direction, achieve continuous print light output.
Accompanying drawing explanation
By reference to the accompanying drawings by detailed description hereafter, above-mentioned aspect of the present disclosure and advantage, characteristic and other advantages and feature will become obvious, wherein:
Fig. 1 schematically shows the configuration of a kind of light source of the prior art;
Fig. 2 schematically shows the side view of the light source according to embodiment of the present disclosure;
Fig. 3 shows the light source in Fig. 2, wherein illustrate only the light path of the segment beam not carried out wavelength convert in incident beam by colour wheel;
Fig. 4 schematically shows the side view of the light source according to another embodiment of the present disclosure;
Fig. 5 schematically shows the example of arranging according to the colour wheel in the light source of embodiment of the present disclosure;
Fig. 6 schematically shows the side view of the light source according to another embodiment of the present disclosure;
Fig. 7 schematically shows in the light source of Fig. 6, by the region that covers by the light beam of wavelength convert; With
Fig. 8 schematically shows another example of arranging according to the colour wheel in the light source of embodiment of the present disclosure.
Embodiment
Below, will be described in further detail the disclosure by reference to the accompanying drawings.Wherein, accompanying drawing and instantiation hereafter only for purpose of explanation, are exemplary, are not appreciated that restriction of the present disclosure.In addition, in the drawings and in which, identical or similar parts employ identical or similar Reference numeral to represent.
According to embodiment of the present disclosure, light source comprises it and is provided with wavelength conversion region on the surface and the substrate that can rotate around its axle and optical path switching device, wherein, described substrate is arranged to the face placed thereon relative to described light source and becomes predetermined angular, and described optical path switching device is configured to the incident beam from the first luminescence unit be guided to optical processing part on described substrate surface, that comprise described wavelength conversion region, and the light beam through wavelength convert is guided to optical pickup apparatus.
Fig. 2 schematically shows the side view of a concrete example of the light source according to embodiment of the present disclosure.As shown in Figure 2, in this example, aforesaid substrate can be such as drive by drive unit the colour wheel 100 rotated around its axle (not shown), above-mentioned wavelength conversion region can be made up of the material for transformation of wave length of such as fluorescent powder or quantum dot, above-mentioned optical path switching device comprises optical element 1, optical element 2, optical element 3 and optical element 4, above-mentioned first luminescence unit (not shown) can be such as (but being not limited to) for sending the lasing light emitter of incident beam, described optical pickup apparatus (not shown) can be such as display, curtain, wall etc.For convenience of description, in Fig. 2, schematically show the face L that light source 1 is placed thereon, and the predetermined angular between colour wheel 100 and this face L being satisfies condition >=0 ° and < 90 °.Illustrated in Fig. 2 that this angle equals the situation of 0 degree, that is, arranged in parallel between colour wheel 100 and face L.For describing for simplicity, in the following description, suppose that this predetermined angular equals 0 degree.
As shown in Figure 2, optical element 1,2 and 3 is arranged to T font, and optical element 1 is perpendicular to optical element 2 and 3, optical element 4 is between colour wheel 100 and optical element 1,2,3, to make the incident beam A of glancing incidence vertically be transmitted through optical element 2 and 4 after being reflected by optical element 1, and converge under the focussing force of optical element 4 in wavelength conversion region 200 that the surface of colour wheel 100 is arranged.Then, not by the incident beam of wavelength conversion region 200 wavelength convert, light beam a namely shown by dashed lines is transmitted through optical element 4 and is reflected by optical element 3; And by the light beam of wavelength conversion region 200 Wavelength-converting, namely by the light beam b shown in solid line, be transmitted through optical element 4 and reflected by optical element 2 and 3 respectively.Finally, light beam a with b so formed arrives above-mentioned optical pickup apparatus (not shown) in the direction parallel with incident beam A.
It should be pointed out that as shown in Figure 3, face L is surface level, and colour wheel 100 is flatly placed, and namely above-mentioned predetermined angular equals 0 degree.But the face L of it will be appreciated by those skilled in the art that is not limited to surface level, but cover any that can be placed thereon according to light source of the present disclosure; And colour wheel 100 is not limited to flatly be placed, but can relative to face L with >=0 ° and the arbitrarily angled of < 90 ° be placed.For the sake of clarity, only figure 2 illustrates face L, in other accompanying drawings, eliminate face L.But should be appreciated that the example in other relevant drawings is also become the situation at 0 degree of angle to draw in conjunction with colour wheel relative to face L.
As shown in Figure 2, the center m of optical element 4, the intersection point n of optical element 1,2,3 and wavelength conversion region 200 are all positioned in axis X.But should be appreciated that such layout and nonrestrictive, those skilled in the art it is contemplated that any layout that can realize above-mentioned light path design.
Here, optical element 1 can be such as catoptron, optical element 2 can be such as dichroic mirror or color splitting and mixing block prism (X-cube), optical element 4 can be such as condenser lens, and optical element 3 can be: catoptron, to make the light beam through wavelength convert, or by through the light beam of wavelength convert and incident beam, the beam section that reflected by above-mentioned colour wheel, through reflexing on above-mentioned optical pickup apparatus by above-mentioned optical element 3 after being transmitted through above-mentioned optical element 4; Or dichroic mirror or color splitting and mixing block prism, to make the above-mentioned light beam through wavelength convert through being reflexed on above-mentioned optical pickup apparatus by above-mentioned optical element 3 after being transmitted through above-mentioned optical element 4, and by above-mentioned incident beam, the beam section that reflected by described colour wheel goes out from the transmission of above-mentioned optical element 3 after being transmitted through above-mentioned optical element 4.That is, when not needing output beam a to optical pickup apparatus, optical element 3 can be that dichroic mirror or color splitting and mixing block prism are gone out (and not being directed to optical pickup apparatus) and folded light beam b from optical element 3 transmission to make light beam a, and now optical element 3 and optical element 2 can merge into an optical element.As needs output beam a, optical element 3 can be only catoptron, to be reflexed on above-mentioned optical pickup apparatus by light beam a and b.
Alternatively, wavelength conversion region 200 is arranged to the endless belt on the surface of colour wheel 100.But the present invention is not limited thereto, those skilled in the art it is contemplated that any suitable wavelength conversion region arrangement, as long as incident beam can be made to arrive optical pickup apparatus like that as described above ground.
Should be understood that, the surface of optical element 1, optical element 2 and optical element 3 can be selected according to actual conditions by those skilled in the art, such as any one in plane, spheric, aspheric surface shape, or arbitrary shape, as long as can realize making incident light by optical processing part that colour wheel is arranged by the cooperation of these optical elements and be directed to optical pickup apparatus.
Should also be noted that wavelength conversion region 200 can be made up of one or more material for transformation of wave length, so as to generate one or more have specific wavelength by the light beam of wavelength convert.
Be applied in the light source of projector existing, colour wheel or arrange perpendicular to face L, adversely affect the compactedness of projector's overall dimensions thus; Or disclosed in foregoing Background, although colour wheel is obliquely installed, but by increase colour wheel thickness and wavelength conversion region is arranged on the wavelength convert realizing incident beam in thickness area, the size of colour wheel own increases and the design complexity of relevant optical element thus, causes equipment complexity and cost to increase.And according to the light source of embodiment of the present disclosure, by make colour wheel 100 relative to plane L tilt >=0 ° and the angle of < 90 °, wavelength dress is changed region be arranged on the surface of colour wheel and optical element be suitably set to make incident beam by being directed to optical pickup apparatus after colour wheel, the diameter of colour wheel can be increased to bear stronger incident laser power, and terseness and the compactedness of projector can not be affected.
The structural allocation of Fig. 3 is substantially identical with Fig. 2, wherein illustrate only the light path of not carried out the segment beam of wavelength convert in incident beam A by colour wheel 100.In order to clearly demonstrate light path trend, as shown in the figure, incident beam A is reflected by optical element 1, be transmitted through optical element 2 and 4 and arrive colour wheel 100, due to not by the material for transformation of wave length Wavelength-converting on colour wheel 100 and by the surface reflection of colour wheel, incident beam A is not transmitted through again optical element 4 by the part that colour wheel carries out wavelength convert, is then reflected by optical element 3, i.e. output beam a.Output beam a finally arrives above-mentioned optical pickup apparatus.
When needing to increase above-mentioned amount of carrying out the incident beam of wavelength convert without colour wheel in output beam to optimize brightness and the color of output beam, such as existence three kinds of solutions below.
the first scheme
Fig. 4 schematically shows the side view of the light source according to another embodiment of the present disclosure.As shown in Figure 4, with the addition of optical element 5 compared with the light source 1 shown in Fig. 2, it is configured to the incident beam F from the second luminescence unit (not shown) different from described first luminescence unit directly to reflex to (i.e. light beam f) on described optical pickup apparatus.Light beam f and above mentioned light beam a and light beam b forms the output beam being directed to optical pickup apparatus jointly.
In the present embodiment, above-mentioned optical element 5 can be such as that dichroic mirror or color splitting and mixing found light prism X-cube, and above-mentioned second luminescence unit can be such as lasing light emitter.As shown in the figure, optical element 5 is arranged to angle at 45 ° with incident beam F, to be reflected by optical element 5 to make the incident beam F perpendicular to incident beam A from above-mentioned second luminescence unit and arrive above-mentioned optical pickup apparatus, and with the example class shown in Fig. 3 seemingly, be transmitted through optical element 5 through the light beam b of wavelength convert and arrive above-mentioned optical pickup apparatus.
first scheme
Fig. 5 schematically shows the example of arranging according to the colour wheel in the light source of embodiment of the present disclosure.As shown in Figure 5, the optical processing part on the surface of above-mentioned colour wheel 100 also comprises reflector space 300, for reflecting the beam section being directed to reflector space 300 in incident beam, wherein, the intensity of folded light beam can be adjusted according to reflector space 300 and the ratio of wavelength conversion region 200.
In the present embodiment, a part for the wavelength conversion region 200 be circular layout is replaced by reflector space 300.Therefore, the segment beam incided on this reflector space 300 is directly reflected by reflector space, thus adds by the amount of incident light in total output beam reflected, thus obtains in a time-sequential manner from the light beam that colour wheel 100 exports.By amount in total output beam of the incident beam that reflects also therefore, it is possible to adjusted with the ratio of the coverage of wavelength conversion region 200 by accommodation reflex region 300.Here, term " sequential " refers to and can only export a kind of monochromatic light at synchronization.Along with colour wheel rotates, light beam irradiation, to the part corresponding with the light (light corresponding to different colours) of different wave length in wavelength conversion region, is thus converted into the light of respective wavelength.
Should be understood that, as shown in Figure 5, wavelength conversion region 200 is divided into two parts and refers to that this wavelength conversion region comprises two kinds of material for transformation of wave length, is converted into two kinds of monochromatic light with different wave length to make incident light, and these two kinds of monochromatic light export chronologically along with the rotation of colour wheel.But, should be appreciated that wavelength conversion region 200 is not limited to comprise two kinds of material for transformation of wave length, also can comprise multi-wavelength's transition material according to the different monochromatic needs of output.
the third scheme
Fig. 6 schematically shows the side view of the light source 1 according to another embodiment again of the present disclosure.As shown in Figure 6, optical element 2 is configured to make the incident beam E from the 3rd luminescence unit (not shown) directly be transmitted through optical element 2 and arrives above-mentioned optical pickup apparatus (i.e. light beam e), and wherein above-mentioned 3rd luminescence unit is different from above-mentioned first luminescence unit and the second luminescence unit.
In the present embodiment, above-mentioned 3rd luminescence unit is such as lasing light emitter.As shown in the figure, the incident beam E from above-mentioned 3rd luminescence unit is directly transmitted through optical element 2 and arrives above-mentioned optical pickup apparatus in the direction being parallel to incident beam A.In Fig. 7 below with gray area show in this case the region that covers by the light beam of wavelength convert.
It should be pointed out that above-mentioned first luminescence unit, the second luminescence unit and the 3rd luminescence unit both can be integrated in light source 1, also can realize discretely with light source 1, as long as the setting of these luminescence units can not block light path.
Should also be noted that the different demands in order to meet in practical situation brightness and the color optimizing output beam, above-mentioned three kinds of schemes both can be used alone, and also can be combined arbitrarily.
Fig. 8 schematically shows another embodiment of arranging according to the colour wheel 100 in the light source of embodiment of the present disclosure.Different from Fig. 5, the wavelength conversion region 200 in Fig. 8 only includes a kind of material for transformation of wave length, namely can only convert incident light to a kind of monochromatic light.As shown in Figure 8, the optical processing part of above-mentioned wheel surface also comprises reflector space 400, for reflecting the beam section being directed to this reflector space 400 in incident beam, wherein, incident beam is directed to the intersection of reflector space 400 and wavelength conversion region 200 to obtain the light beam exported continuously from colour wheel 100.Here, term " continuously " refer in output beam by the light of wavelength convert and can be output by the light of wavelength convert simultaneously.
Knownly, in field of projector, DMD (digital micro-mirror device), LCD (liquid crystal display), LCoS (liquid crystal on silicon) or more generally three light valve systems need to obtain continuous print output beam, this is by using ultrahigh pressure mercury lamp, realizing from multiple merging light with the light source of single or multiple wavelength or the material for transformation of wave length that can produce multi-wavelength simultaneously in the prior art, and realizes there is bigger difference continuously and between the structural design that exports of sequential.For this reason, present disclosure proposes solution as shown in Figure 8.In order to the intersection making incident beam be directed to reflector space 400 and wavelength conversion region 200, such as, can in the light source 1 shown in Fig. 2, along the axis X in Fig. 2, colour wheel 100 is radially offset slightly, with the intersection making the light beam assembled through optical element 4 incide reflector space on colour wheel 100 400 and wavelength conversion region 200, as shown in the luminous point that marks in Fig. 8, be not converted the light beam of wavelength thus and can be output continuously by the light beam of wavelength convert, side by side to arrive above-mentioned optical pickup apparatus.Certainly, such as, also can realize by changing the wavelength conversion region of wheel surface and the layout of reflector space, as below by detailed description.
It should be pointed out that the luminous point shown in Fig. 8 is positioned at the outside of annular wavelength conversion region 200 and the intersection of reflector space 400, but, should be appreciated that this luminous point also can be positioned at the inner side of annular wavelength conversion region 200 and the intersection of reflector space 400.In addition, reflector space 400 both can be the part on the surface of colour wheel 100, also can be other parts except wavelength conversion region 200 on colour wheel 100 surface.Those skilled in the art can at random arrange reflector space 400 as required on colour wheel 100, with the intersection making incident beam can incide reflector space 400 and wavelength conversion region 200.
Thus, embodiment of the present disclosure can obtain continuous print output beam by changing setting simply.
In embodiment of the present disclosure described above, the light path of the incident beam A shown in Fig. 2 is as follows: reflected by optical element 1, be transmitted through optical element 2 and 4, by colour wheel 100 Wavelength-converting back reflection or directly reflect, (or reflected by optical element 2 and be transmitted through optical element 3) is reflected by optical element 2 and 3, and finally arrive optical pickup apparatus, wherein because incident beam is reflected to all directions by the beam section of colour wheel 100 Wavelength-converting, therefore the light beam being converted wavelength covers whole gray area as shown in Figure 7 via after optical element 2 and 3 reflection.Incident beam F shown in Fig. 4 directly arrives optical pickup apparatus (i.e. light beam f) after being reflected by optical element 5.Optical pickup apparatus (i.e. light beam e) is directly arrived after incident beam E shown in Fig. 6 is transmitted through optical element 2.
Easy understand, the design of the various light paths in each embodiment of the disclosure is to make incident beam arrive colour wheel to carry out necessary wavelength convert process, being then directed to optical pickup apparatus; And where necessary (such as in order to the different demands of the brightness from color that meet output beam), increase different luminescence units and the light that these luminescence units send directly is guided to optical pickup apparatus.Also, namely, in embodiment of the present disclosure, above-mentioned various light path design is completed by optical path switching device.Thus, in the various embodiments described above, constitute the various optical path switching devices for realizing light path converting function by optical element 1-5.Need explanation, in order to realize the object of above-mentioned light path converting, except except the optical path switching device be made up of optical element 1-5 disclosed in the various embodiments described above, based on this, those skilled in the art openly easily expect that optical path switching device can comprise other optical elements various and mutual combination configuration thereof.
For Fig. 2, can such as cancel optical element 1, and by suitably arranging the first luminescence unit and making incident beam A directly be transmitted through optical element 2 and 4, then reflexed on optical pickup apparatus by optical element 3 by the light beam reflected by colour wheel wavelength convert, and without wavelength convert, can by the light beam reflected as required or be reflexed on optical pickup apparatus by optical element 3 or go out from optical element 3 transmission and be not directed to optical pickup apparatus.In another example, such as can cancel optical element 1 and 2, and the first luminescence unit is suitably set and is directly transmitted through optical element 4 to make incident beam A, then through colour wheel wavelength convert and/or reflexed on optical pickup apparatus by the light beam reflected by optical element 3 and/or transmission is gone out.
Known according to above description, by using the light source according to embodiment of the present disclosure, by making the certain angle of substrate (such as colour wheel) face tilt placed thereon relative to light source and suitably arranging optical element so that incident beam is guided to optical pickup apparatus, the diameter of colour wheel can be increased to bear stronger incident laser power, and terseness and the compactedness of projector can not be affected.In addition, when using lasing light emitter, passing through such as in radial direction, to offset colour wheel slightly simply according to the light source of embodiment of the present disclosure, achieving continuous print light output.
Light source 1 as above can be included in projector, as the light source required for projector's work.
Although description is above described for projector, but those skilled in the art's easy understand, every needs uses light-source system to carry out the various optical imagery display device of imaging and display, light source 1 as above can be used, and above-mentioned corresponding technical benefits can be obtained.
Therefore, such optical imagery display device, such as projector, also should be considered to be encompassed among protection domain of the present disclosure.
It should be pointed out that the concrete setting in each embodiment of the above-mentioned disclosure can carry out combination in any as required, and be not necessarily limited to that particular combination only set forth in certain specific embodiment.
Will be appreciated that, for convenience of description principle of the present disclosure and process, the explanation carried out in conjunction with term " transmission " and " reflection " when being described the various embodiments described above illustrates according to the situation of complete transmission and total reflection.But should be appreciated that in practice, light beam is carrying out may there is loss in transmittance and reflectance process via relevant optical, but does not affect being suitable for of the propagation of light beam that the disclosure describes and the principle of conversion and process.
Need to illustrate at this, various relevant with numeral term used in the disclosure, such as " first ", " second " and arabic numeral 1,2 etc. are not in order to order of representation or importance, and are only used to identify relevant parts.
Although describe embodiment of the present disclosure by reference to the accompanying drawings above, it should be noted that above-mentioned explanation is only exemplary, not should be understood to restriction of the present disclosure.It will be appreciated by those skilled in the art that when not departing from spirit of the present disclosure, can carry out various amendment, modification, improvement to above-described embodiment, it falls in the scope of the present disclosure.
Claims (13)
1. a light source, comprise it and be provided with wavelength conversion region on the surface and the substrate that can rotate around its axle and optical path switching device, wherein, described substrate is arranged to the face placed thereon relative to described light source and becomes predetermined angular, and described optical path switching device is configured to the incident beam from the first luminescence unit be guided to optical processing part on described substrate surface, that comprise described wavelength conversion region, and the light beam through wavelength convert is guided to optical pickup apparatus.
2. light source according to claim 1, wherein, described substrate is colour wheel.
3. light source according to claim 1 and 2, wherein, described predetermined angular is more than or equal to 0 degree and is less than 90 degree.
4. light source according to any one of claim 1 to 3, wherein, described optical path switching device is configured to the described beam reflection through wavelength convert on described optical pickup apparatus.
5. light source according to any one of claim 1 to 4, wherein, described optical path switching device comprises the first optical element, second optical element, 3rd optical element and the 4th optical element, and wherein, described first optical element, described second optical element and described 3rd optical element are arranged to T-shaped, and described first optical element is perpendicular to described second optical element and described 3rd optical element, described 4th optical element is positioned at described substrate and described first optical element, between described second optical element and described 3rd optical element, first reflected by described first optical element to make described incident beam, then described second optical element is transmitted through, and be transmitted through described 4th optical element and be directed to described optical processing part, and be directed to described optical pickup apparatus through the light beam of wavelength convert via described 3rd optical element and described second optical element.
6. light source according to claim 5, wherein, described first optical element is catoptron, and described second optical element is dichroic mirror or color splitting and mixing block prism X-cube, and described 4th optical element is lens, and described 3rd optical element is:
Catoptron, to make the described light beam through wavelength convert, or the described light beam through wavelength convert and described incident beam, the beam section that reflected by described substrate, through reflexing on described optical pickup apparatus by described 3rd optical element after being transmitted through described 4th optical element; Or
Dichroic mirror or color splitting and mixing block prism X-cube, to make the described light beam through wavelength convert through being reflexed on described optical pickup apparatus by described 3rd optical element after being transmitted through described 4th optical element, and described incident beam, the beam section that reflected by described substrate goes out from described 3rd optical element transmission and is not directed to described optical pickup apparatus after being transmitted through described 4th optical element.
7. the light source according to claim 5 or 6, also comprises the 5th optical element, and wherein, described 5th optical element is configured to the light beam from second luminescence unit different from described first luminescence unit directly to reflex on described optical pickup apparatus.
8. light source according to claim 7, wherein, described 5th optical element is dichroic mirror or color splitting and mixing block prism X-cube.
9. light source according to any one of claim 1 to 8, wherein, the optical processing part of described substrate surface also comprises reflector space, for reflecting the segment beam being directed to this reflector space in incident beam thus obtaining in a time-sequential manner from the light beam that described substrate exports, wherein, the intensity of folded light beam can be adjusted according to the ratio of described reflector space and described wavelength conversion region.
10. light source according to any one of claim 1 to 8, wherein, the optical processing part of described substrate surface also comprises reflector space, for reflecting the segment beam being directed to this reflector space in incident beam, wherein, incident beam is directed to the intersection of described reflector space and described wavelength conversion region to obtain the light beam exported continuously from described substrate.
11. light sources according to any one of claim 5-10, wherein, described second optical element is configured to make the light beam from the 3rd luminescence unit directly be transmitted through described second optical element and arrive described optical pickup apparatus, and wherein, described 3rd luminescence unit is different from described first luminescence unit and described second luminescence unit.
12. 1 kinds of optical imagery display device, comprise the light source according to any one of claim 1 to 11.
13. optical imagery display device according to claim 12, wherein this optical imagery display device is projector.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410377087.4A CN105301879A (en) | 2014-08-01 | 2014-08-01 | Light source apparatus and optical imaging and displaying device including light source apparatus |
| PCT/EP2015/066849 WO2016016076A1 (en) | 2014-08-01 | 2015-07-23 | Light source apparatus and optical imaging and displaying device using the light source apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410377087.4A CN105301879A (en) | 2014-08-01 | 2014-08-01 | Light source apparatus and optical imaging and displaying device including light source apparatus |
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| CN105301879A true CN105301879A (en) | 2016-02-03 |
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| CN201410377087.4A Pending CN105301879A (en) | 2014-08-01 | 2014-08-01 | Light source apparatus and optical imaging and displaying device including light source apparatus |
Country Status (2)
| Country | Link |
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| CN (1) | CN105301879A (en) |
| WO (1) | WO2016016076A1 (en) |
Cited By (4)
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| WO2018024000A1 (en) * | 2016-08-04 | 2018-02-08 | 深圳市绎立锐光科技开发有限公司 | Light emitting device and projection system |
| CN108572497A (en) * | 2017-03-14 | 2018-09-25 | 深圳市光峰光电技术有限公司 | Light supply apparatus and optical projection system |
| CN114585968A (en) * | 2019-11-01 | 2022-06-03 | 株式会社理光 | Light source device, image projection device, and light source optical system |
| CN114761856A (en) * | 2019-11-29 | 2022-07-15 | 株式会社理光 | Light source optical system, light source device and image display device |
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| TWM563567U (en) * | 2017-10-09 | 2018-07-11 | 中強光電股份有限公司 | Projector and illumination system thereof |
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Also Published As
| Publication number | Publication date |
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| WO2016016076A1 (en) | 2016-02-04 |
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