CN206610072U - Light supply apparatus and optical projection system - Google Patents

Abstract

The utility model protects a kind of light supply apparatus, including the first light source, light guide system and Wavelength converter；First light source launches the first exciting light, and light guide system is incident to along incident optical channel；Light guide system guides the first exciting light to Wavelength converter；Wavelength converter includes wavelength convert section and reflector segment, and wavelength convert section absorbs the first exciting light and outgoing Stimulated Light, and the oblique surface for being incident upon reflector segment of the first exciting light forms the second exciting light after being reflected；Light guide system is additionally operable to collect Stimulated Light and the second exciting light, and guides Stimulated Light and the second exciting light along outgoing optical channel outgoing；Light guide system includes light path and corrects component, light path correction component is located in the light path of the second exciting light, for reflecting the second exciting light, and make the primary optical axis of the second exciting light after reflection and the key light overlapping of axles of Stimulated Light, be additionally operable to change the beam angle distribution of the second exciting light.The utility model also protects a kind of optical projection system.

Description

Light supply apparatus and optical projection system

Technical field

The utility model is related to projection art, more particularly to a kind of light supply apparatus and optical projection system.

Background technology

In existing projection art, feux rouges and green glow, and profit are produced using Several problems of evaluating laser beam quality of unstable excitated fluorescent powder The blue light launched in itself with Several problems of evaluating laser beam quality of unstable, with modulation image, is conventional one with feux rouges and green glow formation three primary colours light The method of kind.

In the prior art, as shown in Figure 1A, light supply apparatus 10 includes the first light source 101, light balancing device 102, region light splitting Piece 103, collecting lens 104, fluorescent powder color wheel 105, the first relay lens 106 and the second relay lens 108, speculum 107 and Square rod 109.

As shown in Figure 1B, wherein region light splitting piece 103 includes blue anti-yellow region 1031 thoroughly and anti-blue anti-yellow region 1032, thoroughly Blue anti-yellow region 1031 is located at the central area of region light splitting piece.

First light source 101 is blue laser, and its blue light sent (exciting light) passes through the homogenization of light balancing device 102 Afterwards, region light splitting piece 103 is incident in, and the saturating blue anti-yellow region 1031 through region light splitting piece 103 is transmitted.The blue light is saturating along collecting The central shaft of mirror 104 is incident in collecting lens 104, and collecting lens 104 is used to converge exciting light；Blue light is saturating by collecting Mirror 104 is incided on fluorescent powder color wheel 105 after collecting.Fluorescent powder color wheel 105 include be coated with red fluorescence powder the first section, It is coated with the second section of green emitting phosphor and the 3rd section with scattered reflection function.Fluorescent powder color wheel 105 is periodically Rotate, so that the first section, the second section and the 3rd section of timesharing are located in the light path of blue light.Blue light excitated red fluorescent powder is produced Red fluorescence (Stimulated Light), blue light excite green emitting phosphor to produce green fluorescence (Stimulated Light), and red fluorescence and green fluorescence are with lambert's light Form outgoing；And blue light, through the 3rd section scattered reflection, the also outgoing in the form of lambert's light, etendue quantitative change is big.It is red Fluorescence and green fluorescence pass through collecting lens 104, are reflected by region light splitting piece 103.And with the blue light of lambert's light form outgoing, only Anti- blue anti-yellow region 1032 ability is reflected it, is incided the blue light in blue anti-yellow region 1031 and can be lost because of transmission； Red, green, blue enters square rod 109 by relay lens 106, speculum 107 and relay lens 108, finally from square rod 109 Port of export outgoing.

In light beam due to inciding square rod 109, core lacks blue light, therefore, after the outgoing of square rod 109, its There is the even phenomenon of irregular colour in the hot spot EDS maps of outlet, core is partially yellow, and this can cause the picture finally projected Irregular colour is even.

In summary, the technical scheme of prior art both can loss section shunt excitation it is luminous and reduce light-source brightness, can cause again Color homogeneity is poor.

Utility model content

For the defect that light utilization efficiency is not high enough, color homogeneity is poor of above-mentioned prior art, the utility model provides one Plant the light supply apparatus that light utilization efficiency is high, light source colour uniformity is good.

Basic conception of the present utility model is：Exciting light is set to be wavelength-converted after device reflection, in the absence of along exciting light The light of input path backtracking, so as to avoid this part from exciting light loss；Simultaneously as Stimulated Light and the exciting light after reflection Light distribution it is different, pass through the effect of light guide system, change the image space of exciting light hot spot so that Stimulated Light with after reflection Exciting light precalculated position imaging overlap, with identical uniform spatial distribution, so as to realize that the color of total emergent light is equal Homogenize.

Specifically, the utility model provides a kind of light supply apparatus, it is characterised in that including the first light source, light guiding system System and Wavelength converter；First light source is used to launch the first exciting light, and first exciting light enters along incident optical channel It is incident upon the light guide system；The light guide system is used to guide first exciting light to the Wavelength converter； The Wavelength converter includes wavelength convert section and reflector segment, and the Wavelength converter cycle movement is to cause Wavelength convert section and reflector segment timesharing are stated periodically in the light path of the first exciting light, the wavelength convert section is inhaled First exciting light and outgoing Stimulated Light are received, the oblique surface for being incident upon the reflector segment of the first exciting light is reflected After form the second exciting light；The light guide system is additionally operable to collect the Stimulated Light and the second exciting light, and guide it is described by Laser and the second exciting light are along outgoing optical channel outgoing；The light guide system includes light path and corrects component, the light path correction Component is located in the light path of second exciting light, for reflecting second exciting light, and makes the second exciting light after reflection Primary optical axis and the Stimulated Light key light overlapping of axles, be additionally operable to change the beam angle distribution of the second exciting light, make described second Exciting light is assembled or dissipated, so that second exciting light and the Stimulated Light are along the image space weight in direction of beam propagation Close.

In one embodiment, light supply apparatus also includes filter wheel, including scattering transmission section and Xiu Se transmission sections, The scattering transmission section is used to be scattered second exciting light, and the color transmission section of repairing is used to carry out Stimulated Light Repair color, the filter wheel cycle movement, so that each section and a pair of each section 1 of Wavelength converter of filter wheel Should.

In one embodiment, the filter wheel is coaxially disposed with the Wavelength converter, in a drive device Driving under around same axle rotate.

In one embodiment, scattering transmission section sets the single of Top-hat types diffusion sheet or hexagonal array Compound eye structural.

In one embodiment, the light path correction component includes curved-surface reflection side, for changing described second simultaneously The direction of exciting light and beam angle distribution；Or the light path correction component includes plane reflection face and lens, the plane is anti- The direction that face is used to change second exciting light is penetrated, the lens are used for the angle distribution for changing second exciting light.

In one embodiment, light path correction component include convex curved reflecting surfaces or including plane reflection face with it is recessed The combination of lens, from the Wavelength converter to second exciting light with the overlapping positions of the Stimulated Light, described second The light path of exciting light is more than the light path of the Stimulated Light.

In one embodiment, the light guide system includes the first spectrum groupware, and first spectrum groupware includes Nonoverlapping first area and second area, first exciting light are incident to the first area, and second exciting light enters The second area is incident upon, the first area is to the Transflective characteristic of first exciting light with the second area to institute The Transflective characteristic for stating the second exciting light is identical；Second exciting light is transmitted after the second area to the light path The Stimulated Light Exit positions light path weight of correction component, second exciting light and the Stimulated Light in first spectrum groupware Close.

In one embodiment, the light guide system also includes the first spectrum groupware, the first spectrum groupware bag Nonoverlapping first area and second area are included, first exciting light is incident to the first area, second exciting light It is incident to the second area, Transflective characteristic and the second area pair of the first area to first exciting light The Transflective characteristic of second exciting light is opposite；The light guide system also includes the second spectrum groupware, and described second swashs Luminous transmitted after second spectrum groupware to the light path corrects component, and second exciting light exists with the Stimulated Light The Stimulated Light Exit positions light path of second spectrum groupware is overlapped.

In one embodiment, light path correction component include concave reflection face or including plane reflection face with it is convex The combination of lens, from the Wavelength converter to second exciting light with the overlapping positions of the Stimulated Light, described second The light path of exciting light is less than the light path of the Stimulated Light, and the light path correction component transmits the Stimulated Light.

In one embodiment, the light guide system includes the first spectrum groupware, and first spectrum groupware includes First area, first exciting light is incident to the first area, and second exciting light is without the first light splitting group Part, second exciting light is overlapped with the Stimulated Light in the second exciting light Exit positions light path that the light path corrects component.

In one embodiment, the light guide system includes the first spectrum groupware, and first spectrum groupware includes Nonoverlapping first area and second area, first exciting light are incident to the first area, and second exciting light enters The second area is incident upon, the first area is to the Transflective characteristic of first exciting light with the second area to institute The Transflective characteristic for stating the second exciting light is opposite；The light guide system includes the second spectrum groupware, second exciting light Without second spectrum groupware, the Stimulated Light is guided through first spectrum groupware and the second spectrum groupware respectively successively Afterwards, component is corrected transmitted through the light path, and the second exciting light Exit positions and described second of component is corrected in the light path Exciting light light path is overlapped.

In one embodiment, first spectrum groupware transmits the first exciting light and reflects Stimulated Light.At another In embodiment, the first spectrum groupware reflects the first exciting light and transmits Stimulated Light.

In one embodiment, light guide system include collecting lens, be arranged at the Wavelength converter with it is described Between first spectrum groupware, the Wavelength converter surface is incident to for first exciting light to be assembled, and collect institute State Stimulated Light and second exciting light.

In one embodiment, in addition to secondary light source, for swashing when the wavelength convert section is in described first Transmitting compensation light when in luminous light path, the compensation light has overlapping wave-length coverage, described first point with the Stimulated Light Optical assembly includes compensation light guidance field, for the compensation light to be guided to the Wavelength converter.

In one embodiment, it is described in addition to for launching the secondary light source of compensation light and compensating light guide assembly Compensation light guide assembly is arranged on the emitting light path of the Stimulated Light, and the compensation light has overlapping ripple with the Stimulated Light Long scope, the compensation light passes through the compensation light guide assembly closing light with the Stimulated Light.In the technical scheme, compensation light is not It is incident to wavelength convert section, it is to avoid the light loss that compensation light is wavelength-converted device scattering and caused, greatly improves Compensate the light utilization efficiency of light.

In one embodiment, it is incident to the second exciting light of the light path correction component and by the light path correction group The angle of second exciting light of part reflection is not equal to 90 °.The technical scheme can remain to lead in the state of light path is offset slightly from The angles for crossing light path correction component control the second exciting light to be overlapped with the light path of Stimulated Light, improve light supply apparatus design The free degree.

In one embodiment, first exciting light incides collection in the position for deviateing the collecting lens center Lens.The technical scheme changes the direction of propagation of the first exciting light by collecting lens, so as to realize the first exciting light with oblique Incident mode incides reflector segment, it is to avoid other optical elements of extra increase change the direction of the first exciting light, real The simplification of light supply apparatus structure is showed.

In one embodiment, the primary optical axis for being incident to the first exciting light of the collecting lens is not orthogonal to wavelength turn The surface of changing device.The technical scheme causes first exciting light of the collecting lens away from Wavelength converter side to be excited with second The angle of light expands, it is to avoid produce influence between two-beam.

The utility model additionally provides a kind of optical projection system, including the light supply apparatus described in any of the above-described, in addition to light Modulating device and lens assembly.

Compared with prior art, the utility model includes following beneficial effect：Swashed by the guiding of light guide system, first Reflector segment on the luminous reflector segment surface that Wavelength converter is incided in the way of oblique incidence, Wavelength converter is anti- Penetrate and the exciting light of non-scatter first the second exciting light of formation, it is to avoid the expansion of the second exciting light etendue so that reflection The second exciting light afterwards is separated with the first exciting light light path, will not along the first exciting light light path backtracking, so as to avoid Light path loss section light splitting of second exciting light along the first exciting light, effectively raises light utilization efficiency；Pass through light guide system Light path corrects the reflex of component, and the key light shaft position of the second exciting light is corrected and (changes the second exciting light hot spot to hang down Directly in the image space of its optical path direction), and (change second to swash by the angle distribution of light path correction component the second exciting light of change Image space of the luminous spot along direction of beam propagation, makes the second exciting light and Stimulated Light along the imaging in direction of beam propagation Position is overlapped), the image space of the second exciting light is corrected, so that the second exciting light can be predetermined with Stimulated Light Position has identical uniform spatial distribution.Therefore, the technical solution of the utility model improves the utilization rate of light, and ensures The uniform spatial distribution of light source colour.

Brief description of the drawings

Figure 1A is a kind of structural representation of light supply apparatus of the prior art.

Figure 1B for Figure 1A light supply apparatus in region light splitting piece structural representation.

Fig. 2 is the structural representation of the light supply apparatus of the utility model embodiment one.

Fig. 3 is the structural representation of the light supply apparatus of the utility model embodiment two.

Fig. 4 is the structural representation of the light supply apparatus of the utility model embodiment three.

Fig. 4 A are the structural representation of Fig. 4 medium wavelength conversion equipments.

Fig. 5 is the structural representation of the light supply apparatus of the utility model example IV.

Fig. 5 A are the structural representation of the first spectrum groupware in Fig. 5.

Fig. 6 is the structural representation of the light supply apparatus of the utility model embodiment five.

Fig. 7 is the structural representation of the light supply apparatus of the utility model embodiment six.

Fig. 8 is the structural representation of the light supply apparatus of the utility model embodiment seven.

Fig. 9 is the structural representation of the light supply apparatus of the utility model embodiment eight.

Fig. 9 A are the structural representation of the first spectrum groupware in Fig. 9.

Figure 10 is the structural representation of the light supply apparatus of the utility model embodiment nine.

Figure 11 is the structural representation of the light supply apparatus of the utility model embodiment ten.

Embodiment

Such as relating to the description of " first ", " second ", " the 3rd " etc. is only used for describing purpose in the utility model, in order to Description is convenient, and it is not intended that indicating or implying its relative importance or the implicit number for indicating indicated technical characteristic Amount.Thus, at least one this feature can be expressed or implicitly include by defining " first ", " second ", the feature of " the 3rd ".

In the utility model, the primary optical axis of light beam can be understood as the central shaft of light beam, and the direction of primary optical axis is before light beam The direction entered.

The utility model embodiment is described in detail with embodiment below in conjunction with the accompanying drawings.

Embodiment one

Fig. 2 is referred to, Fig. 2 is the structural representation of the light supply apparatus of the utility model embodiment one.Light supply apparatus includes First light source 201, light guide system and Wavelength converter 206, wherein, light guide system includes the first spectrum groupware 204, received Collect lens 205, relay lens 207 and light path correction component 209, in addition, light supply apparatus also includes dodging device 202, filter wheel 211 and integrating rod 212.

In the present embodiment, the first light source 201 launches the first exciting light, and the first exciting light is incident to light along incident optical channel Guiding system, light guide system guides the first exciting light to Wavelength converter 206.Specifically, the first exciting light is through even light The first area of the first spectrum groupware 204 is incident to after the even light of device 202, and transmitted through the first spectrum groupware 204, it is then incident To collecting lens 205, transmitted after being assembled through collecting lens 205 to Wavelength converter 206, and the first exciting light is with primary optical axis The mode of oblique incidence (i.e. non-normal incidence) is incident to the surface of Wavelength converter 206.

Wavelength converter 206 includes wavelength convert section and reflector segment.The cycle movement of Wavelength converter 206, To cause reflector segment and the timesharing of wavelength convert section periodically in the light path of the first exciting light.Wherein, wavelength convert Section absorbs the first exciting light and outgoing Stimulated Light, and reflector segment reflects the first exciting light to form the second exciting light.Wavelength turns Section is changed including material for transformation of wave length or Wavelength transformational structure, can absorb exciting light and outgoing wavelength be different from exciting light by Laser.In the presence of wavelength convert section, Stimulated Light is in substantially lambertian distribution, and key light direction of principal axis is perpendicular to wavelength-converting region Section, and reflector segment does not change the angle distribution of exciting light then, the first exciting light is roughly the same with the angle distribution of the second exciting light, and Second exciting light is relative to the symmetrical outgoing of the first exciting light, and exit direction is not orthogonal to reflector segment, therefore Stimulated Light and second The primary optical axis of exciting light is misaligned, and both propagate along two different light paths.

Light guide system is additionally operable to collect Stimulated Light and the second exciting light, and guides Stimulated Light and the second exciting light along outgoing Optical channel outgoing, it is specific as follows.

When the wavelength convert section of Wavelength converter 206 is in the light path of the first exciting light, Stimulated Light is by wavelength After conversion section outgoing, collect and transmitted to the first spectrum groupware 204 through collecting lens 205, the first spectrum groupware 204 is for The Transflective characteristic of one exciting light and Stimulated Light is opposite so that Stimulated Light is reflected and is directed to along outgoing optical channel Penetrate.

When the reflector segment of Wavelength converter 206 is in the light path of the first exciting light, the second exciting light is by reflecting After section outgoing, collect and transmitted to the second area of the first spectrum groupware 204 through collecting lens 205.Second exciting light and One excitation wavelength is identical, and the second exciting light and is transmitted to light path correction group transmitted through the second area of the first spectrum groupware 204 Part 209.In the present embodiment, the first exciting light not overlapping with the second exciting light region for inciding the first spectrum groupware 204 ( One region is not overlapping with second area), thus the second exciting light will not along the first exciting light the reverse backtracking of input path To the first light source 201.Light path correction component 209 is located in the light path of the second exciting light, incides the of light path correction component 209 Two exciting lights are corrected the reflective surface of component 209 by light path so that the primary optical axis and Stimulated Light of the second exciting light after reflection Key light overlapping of axles.The second exciting light after reflection is again transmitted through the first spectrum groupware 204, in the first spectrum groupware 204 Stimulated Light Exit positions are combined into a branch of (referring to overlapping for both light paths, actual both stagger in time), warp with Stimulated Light Filter wheel 211 is incided in the convergence of relay lens 207, and the entrance of light from the integrating rod 212 of transmission filter halo 211 enters integrating rod 212。

In the utility model, the primary optical axis of the second exciting light and the primary optical axis " coincidence " of Stimulated Light, it can be understood as be not In absolute sense coincidence but substantially overlap/trueness error in the range of coincidence.It will be appreciated by those skilled in the art that, no Be limited to the present embodiment, on the basis of technical scheme provided by the utility model so that the primary optical axis of the second exciting light with by The primary optical axis of laser is parallel and the scope of the utility model protection, the technical scheme are fallen within apart from the technical scheme less than threshold value It is referred to as " coincidence in error range ".

It is the basic technical scheme of the utility model embodiment one, on this basis, the utility model light supply apparatus above Each component according to actual application environment, can derive between a variety of specific technical schemes, each technical scheme can be with It is mutually combined, is illustrated below.

In one embodiment, the first light source 201 can be blue laser or blue laser array, the first exciting light For blue laser, laser beam divergence is small, light beam is concentrated, substantially gaussian so that the second exciting light after reflection can be with First exciting light is easily discriminated light path.In another embodiment, the first light source 201 can be the LED of blue light-emitting, and first swashs Light as blue LED light.The utility model is not limited to this, but the light using the first exciting light as small divergence angle is excellent.

In one embodiment, dodging device 202 includes integrating rod or fly's-eye lens pair, for the first light source 201 The first exciting light sent carries out even light.In other embodiments, if the first light source 201 send first excite optical uniformity Preferably, dodging device can also be not provided with, the utility model is not limited to this.Certainly, implement of the present utility model one In mode, the combination of the first light source 201 and dodging device 202 in embodiment one can also be regarded as first light source.

In the present embodiment, Wavelength converter 206 is a wheeling disk structure (fluorescence colour wheel), wavelength convert section and reflection Section is in fan annular arrangement on wheeling disk structure, by a drive device (such as motor) driving around wheel disc central axis.Another In one embodiment, Wavelength converter can also be iridescent bucket/color cylinder, including turn along wavelength of the bucket/cylinder face ring around distribution Section and reflector segment are changed, color bucket/color cylinder is around the rotation of its axis direction, so that different sections are in exciting light according to timing cycles Irradiation under；Or, Wavelength converter can also be fluorescence colour table, including the wavelength convert that direction is arranged successively along a straight line Section and reflector segment, colour table is along the rectilinear direction linear oscillator, so that different sections are in exciting light according to timing cycles Under irradiation, so that outgoing sequential light.

In one embodiment, the wavelength convert section of Wavelength converter 206 includes fluorescent material layer, the phosphor The bed of material both can be that fluorescent material-organic adhesive layer (is glued the fluorescent material of separation by organic adhesives such as silica gel, epoxy resin Form layer) or fluorescent material-inorganic adhesive layer (fluorescent material of separation is bonded to by inorganic adhesives such as glass Layer), can also be fluorescence ceramics (including 1. using continuous ceramics as matrix and ceramics in be dispersed with the knot of fluorescent powder grain Structure；2. pure phase ceramics doping activator element, such as Ce doping YAG ceramics；3. in the base of pure phase ceramics doping activator element On plinth, the scattering device fluorescent powder grain in ceramics).In another embodiment, wavelength convert section includes quantum dot layer, Luminescence generated by light function is realized by quanta point material.Wavelength converter 206 can be with only one of which wavelength convert section (such as yellow Wavelength convert section), it is possibility to have two wavelength convert sections (such as green wavelength conversion section and red wavelength conversion section), Two or more wavelength convert section can also be included.

In one embodiment, the reflector segment of Wavelength converter 206 includes metal mirror, and exciting light is carried out Mirror-reflection.In another embodiment, reflector segment includes dielectric reflection film (dielectricreflecting Film), mirror-reflection is carried out to exciting light.In other embodiment of the present utility model, reflector segment can also use it His catoptric arrangement, reflects exciting light.

In the present embodiment, the reflecting surface of the reflector segment of Wavelength converter 206 is parallel to Wavelength converter 206 Plane of movement, namely fluorescence colour wheel rotary shaft perpendicular to reflector segment reflecting surface.In order to realize the first exciting light with oblique The mode penetrated incide Wavelength converter surface (when reflector segment be located at the first exciting light light path on when, reflector segment it is anti- The face of penetrating is the surface of Wavelength converter), it is saturating that the first exciting light incides collection in the position for deviateing the center of collecting lens 205 Mirror 205 so that the first exciting light is collected lens 205 and changes optical transmission direction, so that inclined incide Wavelength converter Surface.Then, the second exciting light reflected from reflector segment incides collecting lens 205.Turn in collecting lens 205 and wavelength Between changing device 206, the first exciting light and the second exciting light formation " V " font light path.In another embodiment, echo area The reflecting surface of section can also be not parallel to the plane of movement of Wavelength converter, but the motion relative to Wavelength converter is put down There is an inclination angle in face, but is still to ensure the reflecting surface that the first exciting light incides reflector segment in the way of oblique incidence, so that Realize that the first exciting light and the light path of the second exciting light are separated, the technical scheme can cause light path design more flexible and changeable.

In the present embodiment, the first spectrum groupware 204 is that (including the first exciting light and second is excited a transmission exciting light Light) and reflection Stimulated Light optical filter/filter coating/dichroic piece, first spectrum groupware 204 is sufficiently large, so that from collecting The light of lens 205 can be reflected to relay lens 207, and enable to the sufficiently large first area being separated from each other and Second area excites light transmission for the first exciting light and second respectively.

In the present embodiment, light path correction component 209 includes a convex curved reflecting surfaces, and the convex curved reflecting surfaces are met to second and excited Light, the second exciting light is reflected, and changes beam angle distribution, and light beam is dissipated.Light path correction component 209 is arranged on the One side of the spectrum groupware 204 away from Wavelength converter 206.

In the utility model, the effect of light path correction component by reflection except enabling the second exciting light with being excited Outside light key light overlapping of axles, another effect is to be distributed by the beam angle for changing the second exciting light, and line convergence or hair are entered to light beam Dissipate.Light from Wavelength converter 206 to the entrance of integrating rod 212 process, the really surface of Wavelength converter 206 hot spot Being imaged onto the process of the plane of incidence of integrating rod 212, (integrating rod can also replace with other optics, while Wavelength converter table The hot spot in face is imaged onto the plane of incidence of the optics after the replacement).Because the second exciting light and Stimulated Light are in key light overlapping of axles Preceding light path is different, and both light paths are different, cause its light path overlap after in the case where being acted on by identical optics image space It is misaligned, so as to cause a kind of spatially uniform of light in both poor (due on the Wavelength converter as " thing " Hot spot is uniform, and the hot spot that image space deviates integrating rod 212 is in out-of-focus appearance in the plane of incidence of integrating rod 212, that The EDS maps of the hot spot are necessarily uneven).By adding curved-surface reflection side, the convergence of increase once to the second exciting light Or diverging, enabling to the image space of the second exciting light can overlap with the image space of Stimulated Light.

In the present embodiment, light path correction component 209 is arranged on the first spectrum groupware 204 away from Wavelength converter 206 Side, from light path correct component 209 the second exciting light pass through the first spectrum groupware 204 after with Stimulated Light primary optical axis weight Close.Relative to Stimulated Light, the second exciting light (still refers to two light herein from the overlapping positions of the light of Wavelength converter 206 to two The coincidence of locus, actual two light stagger in time) light path be more than the light path of Stimulated Light, the second exciting light is from ripple The light path of long conversion equipment 206 to the plane of incidence of integrating rod 212 is more than Stimulated Light from Wavelength converter 206 to integrating rod 212 The plane of incidence light path.Regard Wavelength converter to the optical element between integrating rod as an imaging device, then according into As formula 1/u+1/v=1/f, to cause the second exciting light identical with the image space of Stimulated Light, then increase second is needed to swash The focal length f of luminous imaging device, the function can be by increasing a concavees lens or convex in the light path of the second exciting light Face mirror is realized.The light path correction component 209 of the present embodiment includes a convex curved reflecting surfaces, increases the second exciting light from wavelength convert Imaging focal length of the device to integrating rod so that the second exciting light can be imaged with Stimulated Light in same position, so as to ensure that light The uniform spatial distribution of source device emergent light.

In one embodiment, the convex curved reflecting surfaces of light path correction component 209 are to be coated with metal in a convex configuration The structure of reflectance coating.In other embodiments, it can also be realized by being coated with the modes such as dielectric reflection film.

In one embodiment, collecting lens 205 can be formed by multiple lens combinations.

In one embodiment, relay lens 207 can be formed by multiple lens combinations, such as concavees lens and convex lens Combination etc..It is appreciated that the required component of relay lens not the utility model light supply apparatus.

In the present embodiment, filter wheel 211 includes scattering transmission section and Xiu Se transmission sections.Wherein, transmission area is scattered Section is used to be scattered the second exciting light so that the angle of divergence of the second exciting light and the angle of divergence of Stimulated Light are consistent, and dissipates Penetrating transmission section can be realized by setting diffusion sheet；Repairing color transmission section is used to Stimulated Light is carried out to repair color so that transmission The chromaticity coordinates for the Stimulated Light crossed meets the emergent light requirement of light supply apparatus, and repairing color transmission section can be by setting wavelength filter To realize.Filter wheel 211 is driven by a drive device (such as motor) and does periodic rotary so that filter wheel 211 turns with wavelength Changing device 206 is synchronous, so that each section of each section of filter wheel 211 and Wavelength converter 206 is corresponded.Specifically Ground, when 206 outgoing Stimulated Light of Wavelength converter, the color transmission area section of repairing of filter wheel 211 is located in the light path of Stimulated Light；When During 206 the second exciting light of outgoing of Wavelength converter, the scattering transmission area section of filter wheel 211 is located at the light path of the second exciting light On.Because general diffusion sheet is to exciting after light scattering, the angle of exciting light is distributed as Gauss scattering, and the angle distribution with Stimulated Light is not Together, therefore, to excite the angle distribution after light scattering can be consistent with Stimulated Light, in some embodiments, scattering transmission Section sets Top-hat types diffusion sheet, and (the angle distribution after scattering substantially is in "Ji" type, and shape is as carnival hat, so being referred to as Top-hat) or hexagonal array single compound eye structural.

It is appreciated that the required component of filter wheel not the utility model light supply apparatus, to the chromaticity coordinates of emergent light or The relatively low application scenarios of angle Spreading requirements, can also omit filter wheel, and the utility model is not limited to this.

In the present embodiment, the emergent light of filter wheel 211 enters integrating rod 212 and is homogenized.In other embodiments, Integrating rod 212 can also replace with other light balancing devices.In other embodiments, integrating rod 212 can also be omitted so that Emergent light is directly entered follow-up optical element, and the utility model is not limited to this.

Embodiment two

Fig. 3 is referred to, Fig. 3 is the structural representation of the light supply apparatus of the utility model embodiment two.Light supply apparatus includes First light source 201, light guide system and Wavelength converter 206, wherein, light guide system include the first spectrum groupware 204a, Collecting lens 205, relay lens 207 and light path correction component 209, in addition, light supply apparatus also includes secondary light source 203, even light Device 202, filter wheel 211 and integrating rod 212.

First light source 201, light guide system, Wavelength converter 206, dodging device 202, filter wheel 211, integrating rod 212 description is referred to the description in above-described embodiment one.

Compared with embodiment one, the technical scheme of embodiment two adds secondary light source 203, for working as Wavelength converter Transmitting compensation light when 206 wavelength convert section is in the light path of the first exciting light.In addition, compared with embodiment one, first Spectrum groupware 204a further comprises a compensation light guidance field, can guide compensation light to Wavelength converter.

When compensation light incides the first spectrum groupware 204a, light transmission overcompensation light guidance field is compensated simultaneously saturating through collecting Mirror 205, which is assembled, incides Wavelength converter 206, and the compensation light will not be wavelength-converted device 206 and absorb, but scattered Reflect after (diffusing reflection), as the light for being substantially in lambertian distribution, with Stimulated Light together outgoing.Wherein, except a small amount of compensation light and Part and compensation light spectrum it is overlapping be excited the first spectrum groupware of light transmission 204a compensation light guidance field and lose outside, Remaining compensation light for being collected the collection of lens 205 enters outgoing optical channel outgoing with most of Stimulated Light along same optical path.

In one embodiment, compensation light has overlapping wave-length coverage with Stimulated Light.For example, the wavelength model of compensation light It is (a, b) to enclose interval, and the wave-length coverage interval of Stimulated Light is (c, d), wherein c<a<d.In one embodiment, light is compensated Color can be same or like with Stimulated Light.Compensation light compensates in hue and luminance of Stimulated Light etc. one at least Kind.For example, in a specific embodiment, secondary light source 203 is red laser light source, Wavelength converter 206 includes anti- Section, green wavelength conversion section and red wavelength conversion section are penetrated, section is in the first exciting light when red wavelength-converting region When in light path, secondary light source 203 is opened so that red laser is sent together with red Stimulated Light, enables to light supply apparatus to go out The feux rouges penetrated can improve the brightness of feux rouges closer to required red.

In the present embodiment, although compensation light can because the light loss of compensation light guidance field and caused by hot spot EDS maps face Color is uneven, but is due to that Stimulated Light is overlapped with compensation light color, and compensation light only accounts for a part for its coloured light, color homogeneity energy It is enough to receive.Moreover, the setting of compensation light guidance field does not interfere with the uniformity of exciting light, the technical program is uniform to exciting light The improvement of property will not have a negative impact.

In the present embodiment, compensation light guidance field is arranged on the primary optical axis path of Stimulated Light, compensation light guiding Region is transmissive to exciting light so that the second exciting light can be guided after being reflected through light path correction component 209 by compensating light Region and Stimulated Light key light overlapping of axles.

In one embodiment, compensation light guidance field is deviateed the primary optical axis of Stimulated Light and set, namely compensation light as First exciting light is general, oblique to be mapped to the surface of Wavelength converter, but is due to that compensation light incides Wavelength converter Wavelength convert section, the light after scattered reflection is changed into the light substantially in lambertian distribution, makes it still be able to overlap with Stimulated Light, rather than Form " V " font light path.In the technical scheme, the second exciting light after correcting component reflection through light path can be without overcompensation light Guidance field and with Stimulated Light key light overlapping of axles, therefore compensation light guidance field may not necessarily transmit exciting light.

In the utility model other embodiments (including but is not limited to following each embodiments), if needing not compensate for being excited Light, then can also omit, the utility model is not limited to this for launching the secondary light source 203 of compensation light.Used if omitting In the secondary light source 203 of transmitting compensation light, then the first spectrum groupware, which can not include, compensates light guidance field.

Embodiment three

Fig. 4 is referred to, Fig. 4 is the structural representation of the light supply apparatus of the utility model embodiment three.Light supply apparatus includes First light source 201, light guide system and Wavelength converter 206, wherein, light guide system include the first spectrum groupware 204a, Collecting lens 205, the first relay lens 207, reflector plate 208, the light path correction relay lens 210 of component 209 and second, in addition, Light supply apparatus also includes secondary light source 203, dodging device 202, filter wheel 211 and integrating rod 212.

In the various embodiments described above, Wavelength converter 206 and the relatively independent setting of filter wheel 211, respectively by two drivings Device drives and carries out cycle movement.Different, in the present embodiment, Wavelength converter 206 and filter wheel 211 are same Axle is set, and is rotated under the driving of a drive device around same axle.

Fig. 4 A are referred to, wherein Wavelength converter 206 includes the reflector segment 2061 of fan annular, red wavelength transition zone Section 2062 and green wavelength conversion section 2063, filter wheel 211 includes the scattering transmission section 2111 of fan annular, that red repaiies color is saturating Penetrate section 2112 and green repaiies color transmission section 2113.Wherein, the annular angle of the fan of reflector segment 2061 and scattering transmission section The annular angle of 2111 fan is identical, and the annular angle of fan and the red of red wavelength conversion section 2062 repair color transmission section 2112 The annular angle of fan is identical, and the annular angle of fan and the green of green wavelength conversion section 2063 repair the fan annular of color transmission section 2113 Angle is identical.In the present embodiment, reflector space 2061 is oppositely arranged with scattering regional transmission 2111 in 180 °, and the technical scheme makes Reflector space 2061 is obtained with scattering regional transmission 2111 apart from farthest, there can be the optics member of light path in the middle of enough space arrangements Part.Certainly, in other embodiments, reflector space can also be made to be set with scattering regional transmission in 0~180 ° of any angle, The utility model is not limited to this.

With the change of Wavelength converter 206 and the locations of structures of filter wheel 211, Wavelength converter 206 to optical filtering Light path between wheel 211 is also suitably adjusted.Relative to above-described embodiment, embodiment adds the relaying of reflector plate 208 and second Lens 210, for guiding Stimulated Light, the second exciting light and compensation light.Wherein, reflecting element 208 will come from the first relay lens 207 Stimulated Light, the second exciting light and compensation light reflex to the second relay lens 210, and the second relay lens 210, which is collected, is excited Light, the second exciting light and compensation light, and transmit it to filter wheel 211.

In one embodiment, reflecting element 208 is metallic mirror.In another embodiment, reflecting element 208 can also be the element including dielectric reflection film.In other embodiments, reflecting element 208 can also be other types Reflective optical device, the utility model is not limited to this.

In the utility model another embodiment, retaining the situation of the relay lens 210 of reflecting element 208 and second Under, Wavelength converter 206 and filter wheel 211 can also be split into the element of two relatively independent settings without changing its position Put, the technical scheme is also in protection domain of the present utility model.

Other each components in the present embodiment are referred to the description of embodiment two and its alternate embodiment, no longer go to live in the household of one's in-laws on getting married herein State.

Change of the present embodiment based on embodiment two equally can operate with embodiment one, and here is omitted.

Example IV

Fig. 5 is referred to, Fig. 5 is the structural representation of the light supply apparatus of the utility model example IV.Light supply apparatus includes First light source 201, light guide system and Wavelength converter 206, wherein, light guide system include the first spectrum groupware 204b, Collecting lens 205, the first relay lens 207, the second spectrum groupware 208a, the light path correction relay lens of component 209 and second 210, in addition, light supply apparatus also includes secondary light source 203, dodging device 202, filter wheel 211 and integrating rod 212.

In the various embodiments described above, the first spectrum groupware 204 or the first spectrum groupware 204a first area and the secondth area Domain is identical to the Transflective characteristic of the first exciting light and the second exciting light.Distinguish therewith, in the present embodiment, first area Transflective characteristic and second area to the first exciting light is opposite to the Transflective characteristic of the second exciting light.

As shown in Figure 5A, the first spectrum groupware 204b includes first area 204b1, second area 204b2, compensation light guiding Region 204b3 and the 4th region 204b4, first area is not overlapping with second area.Wherein, first area 204b1 transmissions the One exciting light (further, reflects Stimulated Light and compensation light), and (further, anti-second area 204b2 reflects the second exciting light Penetrate Stimulated Light and compensation light), (further, reflection is different from supplement light spectrum for compensation light guidance field 204b3 transmission compensation light Light), the 4th region 204b4 reflection Stimulated Light and compensation light.In one embodiment, region 204b4 transmits exciting light, the One region 204b1 and region 204b4 can permeate whole region.In another embodiment, region 204b4 reflections swash Luminous, second area 204b2 and region 204b4 can permeate whole region.The Transflective characteristic of regional can be with Realized by plated film, wherein transmission can also realize that reflection can also be realized by setting reflecting layer by hollow out.

In the present embodiment, the first light source 201 launch the first exciting light, the first exciting light after the even light of dodging device 202, It is incident to the first spectrum groupware 204b first area 204b1 and transmits, after then the first exciting light is assembled through collecting lens 205 Transmit to Wavelength converter 206.When the wavelength convert section of Wavelength converter 206 is in the light path of the first exciting light When, wavelength convert section absorbs the first exciting light and outgoing is substantially in the Stimulated Light of lambertian distribution, and Stimulated Light is through collecting lens 205 Collect and transmit to the first spectrum groupware 204b, the Stimulated Light covers most of region of the first spectrum groupware 204, except on a small quantity with Compensation light is present outside the overlapping Stimulated Light transmission overcompensation light guidance field 204b3 of spectrum loses, and other Stimulated Lights are anti- It is incident upon the first relay lens 207.When the reflector segment of Wavelength converter 206 is in the light path of the first exciting light, first The oblique surface for being incident upon reflector segment of exciting light, reflected section reflects to form the second exciting light, second exciting light and first The V-shaped light path of exciting light, collects through collecting lens 205 and transmits to the first spectrum groupware 204b second area 204b2, Second exciting light is reflected by second area 204b2, and is reflected onto the first relay lens 207.The transmitting compensation of secondary light source 203 Light, the compensation light transmission crosses the first spectrum groupware 204b compensation light guidance field 204b3, is passed after being assembled through collecting lens 205 The wavelength convert section of Wavelength converter 206 is transported to, being wavelength-converted after conversion section scattered reflection turns into substantially in lambert The compensation light of distribution, the compensation light is collected after lens 205 collect, except wherein transmiting the first spectrum groupware 204b's again on a small quantity Compensation light guidance field 204b3 and outside losing, remainder and Stimulated Light are along same optical path outgoing.

In each light beam for reaching the first relay lens 207, on the one hand, the second exciting light is collected through the first relay lens 207 And transmit to light path correcting element 209, the second relay lens 210 is reflexed to by light path correcting element 209, through the second relay lens Transmitted after 210 collections to filter wheel 211, during being somebody's turn to do, the second spectrum groupware 208a is arranged on the first relay lens 207 and light path In light path between correcting element 209, the second spectrum groupware 208a does not influence the transmission of the second exciting light, makes the second exciting light straight Connect transmission；On the other hand, Stimulated Light and compensation light are collected through the first relay lens 207 and transmitted to the second spectrum groupware 208a, Stimulated Light and compensation light are further reflexed to the second relay lens 210 by the second spectrum groupware 208a, and the second relay lens 210 will Stimulated Light and compensation light are collected and transmitted to filter wheel 211.

Light path correcting element 209 is located on the reverse extending line of the light path for the Stimulated Light that the second spectrum groupware 208a reflects, Light path correcting element 209 reflects the second exciting light so that the primary optical axis and the key light of Stimulated Light of the second exciting light after reflection Overlapping of axles, so as to realize that Color-spatial distribution is uniform in the plane of incidence of integrating rod 212.

In the present embodiment, the second exciting light passes twice through the second spectrum groupware 208a, with Stimulated Light in the second light splitting group Part 208a Stimulated Light Exit positions light path is overlapped.Relative to Stimulated Light, the second exciting light is from the beam of Wavelength converter 206 to two The light path of the overlapping positions of light is more than the light path of Stimulated Light, therefore light path correction component 209 equally includes a convex curved reflecting surfaces, with Increase the imaging focal length of the second Stimulated Light.The technical characteristic is similar with the various embodiments described above, is all selection convex curved reflecting surfaces, to solve Certainly the second exciting light is more than Stimulated Light from Wavelength converter to the second exciting light and the light path of the closing light position of Stimulated Light The problem of distribution of color that light path is brought is uneven.

In above-described embodiment one to three, the first spectrum groupware 204 or 204a both serve the first exciting light of differentiation with The effect of Stimulated Light light path, serves and merges the second exciting light and the effect of Stimulated Light light path again.And in the present embodiment, first Spectrum groupware 204b realizes the first exciting light and the light path of Stimulated Light is distinguished, and the second spectrum groupware 208a realizes second and excited Light merges with the light path of Stimulated Light.

In one embodiment, if needing not compensate for Stimulated Light, secondary light source 203, the first light splitting group can be omitted The compensation light guidance field of part can also be omitted.

Each optical element not described in the present embodiment can join for optical treatment and beam Propagation process of light beam etc. According to the description of above-described embodiment, here is omitted.

Embodiment five

Fig. 6 is referred to, Fig. 6 is the structural representation of the light supply apparatus of the utility model embodiment five.Light supply apparatus includes First light source 201, light guide system and Wavelength converter 206, wherein, light guide system includes the first spectrum groupware 204, received Collect lens 205, relay lens 207 and light path correction component 209a, in addition, light supply apparatus also includes dodging device 202, filter wheel 211 and integrating rod 212.

Difference with embodiment one is, in the present embodiment, and light path correction component 209a is one including concave reflection face Optical element, is arranged on the first spectrum groupware 204 close to the side of Wavelength converter 206, and Wavelength converter 206 Second exciting light of reflector segment outgoing is not incident on the first spectrum groupware 204, but directly corrects component 209a's by light path Concave reflection face is reflected.Moreover, light path correction component 209a is transmissive to Stimulated Light, can be by being plated in the concave surface of transparent medium System transmission exciting light and the filter coating realization for reflecting the second exciting light.

Specifically, the first light source 201 launches the first exciting light, and the first light splitting group is incident to after the even light of dodging device 202 The first area of part 204, and transmitted through the first spectrum groupware 204, collecting lens 205 is then incident to, through the meeting of collecting lens 205 Transmitted after poly- to Wavelength converter 206.When the first exciting light is incident to the wavelength convert section of Wavelength converter 206, Wavelength convert section absorbs the first exciting light and outgoing is substantially in the Stimulated Light of lambertian distribution, and Stimulated Light is received through collecting lens 205 Collect and transmit to the first spectrum groupware 204, and the first relay lens 207 is reflexed to by the first spectrum groupware 204.During being somebody's turn to do, Light path correcting element 209a has the characteristic of transmission Stimulated Light, hardly produces influence to Stimulated Light, makes it directly transmitted through light Road correcting element 209a.When the first exciting light is incident to the reflector segment of Wavelength converter 206 in the way of oblique incidence, instead Penetrate section and the first exciting light is converted into the second exciting light, second exciting light and the V-shaped light path of the first exciting light, through receiving Collection lens 205 are collected and transmitted to light path correcting element 209a, after the second exciting light is reflected by light path correcting element 209a, key light The key light overlapping of axles of axle and Stimulated Light, is transmitted to the first relay lens 207.

In the present embodiment, the second exciting light does not reach the first spectrum groupware 204 and corrects component 209a reflections by light path, And in being overlapped after reflection with Stimulated Light key light axial light path so that relative to Stimulated Light, the second exciting light is from Wavelength converter 206 Light path to the overlapping positions of two light is less than light path of the Stimulated Light from the overlapping positions of the light of Wavelength converter 206 to two, therefore, The light path that the hot spot of the reflector segment of Wavelength converter 206 is imaged onto the plane of incidence of integrating rod 212 is less than Wavelength converter 206 The hot spot of wavelength convert section be imaged onto the light path of the plane of incidence of integrating rod 212.According to imaging formula 1/u+1/v=1/f, to So that the second exciting light is identical with the image space of Stimulated Light, then need to reduce the imaging focal length f of the second exciting light.By setting Light path correction component 209 including concave reflection face, reduces imaging focal length so that the second exciting light can be same with Stimulated Light One position is imaged, so as to ensure that the uniform spatial distribution of light supply apparatus emergent light.

Include the technical scheme of convex curved reflecting surfaces relative to light path correction component in the respective embodiments described above, the present embodiment Part Stimulated Light needs to correct component through light path in technical scheme, and this causes the uniformity of Stimulated Light inevitably by one A little influences.But it is due to the light that the second exciting light is small divergence angle, the area of light path correction component is smaller, therefore in some requirements Relatively low application scenario, can also receive the technical scheme of the present embodiment.

Each optical element that the present embodiment is not described can refer to for optical treatment and beam Propagation process of light beam etc. The description of above-described embodiment one, here is omitted.

Embodiment six

Fig. 7 is referred to, Fig. 7 is the structural representation of the light supply apparatus of the utility model embodiment six.Light supply apparatus includes First light source 201, light guide system and Wavelength converter 206, wherein, light guide system include the first spectrum groupware 204a, Collecting lens 205, the first relay lens 207, reflector plate 208, light path correction component 209a and the second relay lens 210, in addition, Light supply apparatus also includes secondary light source 203, dodging device 202, filter wheel 211 and integrating rod 212.

Relative to embodiment five, embodiment adds secondary light source 203, for when the wavelength of Wavelength converter 206 Transmitting compensation light when conversion section is in the light path of the first exciting light.In addition, compared with embodiment five, the first spectrum groupware 204a further comprises a compensation light guidance field, is transmissive to compensate light.Difference change is specifically referred to embodiment two Relative to the change of embodiment one, here is omitted.

Relative to embodiment five, the Wavelength converter 206 in the present embodiment is coaxially disposed with filter wheel 211, at one Rotated under the driving of drive device around same axle.And with the change of Wavelength converter 206 and the locations of structures of filter wheel 211 Change, Wavelength converter 206 to the light path between filter wheel 211 is also suitably adjusted, add the relaying of reflector plate 208 and second saturating Mirror 210, for guiding Stimulated Light, the second exciting light and compensation light.Wherein, reflecting element 208 will come from the first relay lens 207 Stimulated Light, the second exciting light and compensation light reflex to the second relay lens 210, the second relay lens 210 collects Stimulated Light, the Two exciting lights and compensation light, and transmit it to filter wheel 211.Difference change is specifically referred to embodiment three relative to reality The change of example two is applied, here is omitted.

The present embodiment, which can also be regarded as, is combined embodiment three with embodiment five, will include convex refractive in embodiment three The light path correcting element 209 in face replaces with the light path correcting element 209a including concave reflection face, while by light path correcting element 209a position is arranged in the light path between the spectrum groupware 204a of Wavelength converter 206 and first.

Each optical element that the present embodiment is not described can refer to for optical treatment and beam Propagation process of light beam etc. The description of the various embodiments described above, here is omitted.

Embodiment seven

Fig. 8 is referred to, Fig. 8 is the structural representation of the light supply apparatus of the utility model embodiment seven.Light supply apparatus includes First light source 201, light guide system and Wavelength converter 206, wherein, light guide system include the first spectrum groupware 204b, Collecting lens 205, the first relay lens 207, the second spectrum groupware 208a, light path correction component 209a and the second relay lens 210, in addition, light supply apparatus also includes secondary light source 203, dodging device 202, filter wheel 211 and integrating rod 212.

Difference of the embodiment seven relative to embodiment six is similar to difference of the example IV relative to embodiment three.In this reality Apply in example, the first spectrum groupware 204b equally can refer to Fig. 5 A, including first area 204b1, second area 204b2, compensation light Guidance field 204b3 and the 4th region 204b4, the first spectrum groupware 204b first area 204b1 is to the saturating of the first exciting light Penetrate reflection characteristic opposite to the Transflective characteristic of the second exciting light with the first spectrum groupware 204b second area 204b2.

Specifically, the first exciting light that the first light source 201 is sent is incident to the first light splitting after the even light of dodging device 202 Component 204b first area 204b1 is simultaneously transmitted, and then the first exciting light is transmitted to wavelength convert after being assembled through collecting lens 205 Device 206.When the wavelength convert section of Wavelength converter 206 is in the light path of the first exciting light, wavelength convert section Absorb the Stimulated Light that the first exciting light and outgoing are substantially in lambertian distribution, Stimulated Light is collected through collecting lens 205 and transmitted to the One spectrum groupware 204b, the Stimulated Light cover the first spectrum groupware 204b most of region, except on a small quantity with compensation light there is light Outside the overlapping Stimulated Light transmission overcompensation light guidance field 204b3 of spectrum loses, other Stimulated Lights are reflected onto the first relaying Lens 207.When the reflector segment of Wavelength converter 206 is in the light path of the first exciting light, the first exciting light oblique incidence To the surface of reflector segment, reflected section reflects to form the second exciting light, and second exciting light and the first exciting light are in " V " word Type light path, collects through collecting lens 205 and transmits to the first spectrum groupware 204b second area 204b2, the second exciting light quilt Second area 204b2 reflects, and is reflected onto the first relay lens 207.The transmitting compensation light of secondary light source 203, the compensation light is saturating The first spectrum groupware 204b compensation light guidance field 204b3 was penetrated, transmits to wavelength convert and fills after being assembled through collecting lens 205 Put 206 wavelength convert section, be wavelength-converted after conversion section scattered reflection turn into substantially be in lambertian distribution compensation light, should Compensation light is collected after the collection of lens 205, except wherein a small amount of compensation light guidance field for transmiting the first spectrum groupware 204b again 204b3 and outside losing, remainder and Stimulated Light are along same optical path outgoing.

In each light beam for reaching the first relay lens 207, on the one hand, the second exciting light is collected through the first relay lens 207 And transmit to light path correcting element 209a, the second relay lens 210 is reflexed to by light path correcting element 209a, it is saturating through the second relaying Mirror 210 is transmitted to filter wheel 211 after collecting；On the other hand, Stimulated Light and compensation light are collected and transmitted through the first relay lens 207 Stimulated Light and compensation light are further reflexed into the second relay lens to the second spectrum groupware 208a, the second spectrum groupware 208a 210, Stimulated Light and compensation light are collected and transmitted to filter wheel 211 by the second relay lens 210.Wherein, the second exciting light without The second spectrum groupware 208a is crossed, light path correcting element 209 is directly incident on.And partially-excited light and compensation light are then transmitted through light path Component 209a is corrected, this make it that the uniformity of Stimulated Light is inevitably influenceed by some.But it is due to that the second exciting light is The light of small divergence angle, light path correction component 209a area is smaller, therefore requires relatively low application scenario at some, also may be used To receive the technical scheme of the present embodiment.

In the present embodiment, Stimulated Light is guided through the first spectrum groupware 204b and the second spectrum groupware 208a respectively successively Afterwards, component 209a is corrected transmitted through light path, the second exciting light corrects component 209a through light path and reflected, and two light correct component in light path 209a the second exciting light Exit positions light path is overlapped so that relative to Stimulated Light, and the second exciting light is from Wavelength converter 206 Light path to the overlapping positions of two light is less than light path of the Stimulated Light from the overlapping positions of the light of Wavelength converter 206 to two, therefore, The light path that the hot spot of the reflector segment of Wavelength converter 206 is imaged onto the plane of incidence of integrating rod 212 is less than Wavelength converter 206 The hot spot of wavelength convert section be imaged onto the light path of the plane of incidence of integrating rod 212.Light path correction component 209a reflections second are excited The face of light is concave reflection face so that the second exciting light and Stimulated Light can be imaged in identical position, realizes color space point Cloth is uniform.

In the present embodiment, because the second exciting light is not incident on the second spectrum groupware 208a, therefore the second spectrum groupware 208a can also be a reflector plate.

Each optical element that the present embodiment is not described in detail, can for optical treatment and beam Propagation process of light beam etc. With reference to the description of the various embodiments described above, here is omitted.

Embodiment eight

Fig. 9 is referred to, Fig. 9 is the structural representation of the light supply apparatus of the utility model embodiment eight.Light supply apparatus includes First light source 201, light guide system and Wavelength converter 206, wherein, light guide system include the first spectrum groupware 204c, Collecting lens 205, relay lens 207 and light path correction component 209, in addition, light supply apparatus also includes secondary light source 203, even light Device 202, filter wheel 211 and integrating rod 212.

In the respective embodiments described above, the first exciting light is after the even light of dodging device 202, transmitted through the first spectrum groupware 204/ 204a/204b, is then incident on Wavelength converter 206.Different, in the present embodiment, the first exciting light is by One spectrum groupware 204c reflects, and then incides Wavelength converter 206 through collecting lens 205.

As shown in Figure 9 A, in the present embodiment, the first spectrum groupware 204c includes first area 204c1, second area 204c2, compensation light guidance field 204c3 and the 4th region 204c4.Wherein, first area 204c1 reflects the first exciting light simultaneously Stimulated Light and compensation light are transmitted, second area 204c2 reflects the second exciting light and transmits Stimulated Light and compensation light, compensation light guiding Region 204c3 reflection compensations light simultaneously transmits the second exciting light and at least part Stimulated Light, the 4th region 204c4 transmission Stimulated Lights and Compensate light.

Specifically, the first exciting light of the first light source 201 transmitting is incident to the first light splitting after the even light of dodging device 202 Component 204c first area 204c1, and reflected in the region, collecting lens 205 is then incident to, through collecting lens 205 Wavelength converter 206 is incident to after convergence.

When the reflector segment of Wavelength converter 206 is located in the light path of the first exciting light, the first exciting light is with key light The mode of axle oblique incidence, which is incident to after reflector segment, reflection, forms the second exciting light, and second exciting light is in the first exciting light " V " font light path, collects through collecting lens 205 and transmits to the first spectrum groupware 204c second area 204c2, second and excite Light is reflected by second area 204c2, and is reflected onto light path correcting element 209b, and it is anti-that light path correcting element 209b includes a convex surface Face is penetrated, the convex curved reflecting surfaces reflect the second exciting light, make it into outgoing optical channel.When the wavelength of Wavelength converter 206 turns When changing section in the light path of the first exciting light, wavelength convert section absorbs the first exciting light and sends Stimulated Light, and this is excited It is wide to cause to be in lambertian distribution, it is collected after the collection of lens 205, the Stimulated Light is transmitted through the first spectrum groupware 204c, into outgoing Optical channel.

In the present embodiment, the first spectrum groupware 204c is to the Transflective characteristic of the first exciting light and Stimulated Light on the contrary, rising Arrive and distinguished the first exciting light and the effect of Stimulated Light light path.Before the first spectrum groupware 204c is incided, partially-excited light Light path correcting element 209b is incided, the partially-excited light is directly transmitted through light path correcting element 209b.

After compensation light guidance field 204c3 reflections of the compensation light that secondary light source 203 is sent through the first spectrum groupware 204c, Collect and transmitted to Wavelength converter 206 through collecting lens 205, be wavelength-converted the wavelength convert section scattering of device 206 The approximate light in lambertian distribution is reflected into, lens 205 is then collected and collects and transmit to the first spectrum groupware 204c.Now, Compensation light is combined into a branch of outgoing with Stimulated Light, except a small amount of light and Stimulated Light overlapping with compensation optical wavelength range of compensating is by compensation light Lose outer after guidance field 204c3 reflections, remaining compensates light and Stimulated Light by the first spectrum groupware 204c except compensation light draws The region transmission outside the 204c3 of region is led, into outgoing optical channel.

In the present embodiment, light path correcting element 209b is arranged on the spectrum groupware 204c of Wavelength converter 206 and first Between light path on, by light path correcting element 209b, the second exciting light, Stimulated Light and the key light overlapping of axles for compensating light turn into Light beam is incided on the first spectrum groupware 204c.Wherein, Stimulated Light and the light that compensation light is lambertian distribution, cover first point Optical assembly 204c most of region, and the second exciting light is still the light of the small divergence angle of approximate Gaussian distribution, the second exciting light It is incident to compensation light guidance field 204c3 and transmits.

The first spectrum groupware 204c in the present embodiment is an entirety, and regional thereon passes through plated film or perforate Realized etc. mode.In another embodiment, can also be by the first spectrum groupware because the first spectrum groupware transmits Stimulated Light Relatively independent several optical filters are set to, for example, 204c1 optical filters in first area independent of each other, second area are set 204c2 optical filters, compensation light guidance field 204c3 optical filters, can also realize technique effect of the present utility model.

In a variant embodiment of the present embodiment, second area 204c2 transmits the second exciting light, in the second exciting light A reflector plate is set on transmitted through the light path after second area, the direction for changing the second exciting light makes it be incident to light path Correcting element 209b (equally including convex curved reflecting surfaces), the second exciting light through light path correcting element 209b reflect after, with transmitted through Light path correcting element 209b Stimulated Light key light overlapping of axles.In this embodiment, light path correcting element 209b is arranged on first In light path after spectrum groupware 204c, i.e., Stimulated Light first passes through the first spectrum groupware 204c, then passes through light path correcting element 209b。

In a variant embodiment of the present embodiment, secondary light source 203 can also be not provided with, then corresponding, compensation Light guidance field 204c3 can also be omitted, but former compensation light guidance field 204c3 is required to transmit the second exciting light.

In the present embodiment, before light beam reaches 207, the second exciting light, compensation light and Stimulated Light turn into key light overlapping of axles A branch of closing light, by setting speculum arbitrarily to change the position of filter wheel 211 and integrating rod 212.It can such as pass through The speculum of two 45 ° of placements, by 180 ° of beam reversal, by filter wheel 211 with Wavelength converter 206 is coaxial is wholely set, Such as be the same as Example three, four, six, the July 1st.

Each optical element that the present embodiment is not described in detail, can for optical treatment and beam Propagation process of light beam etc. With reference to the description of the various embodiments described above, here is omitted.

Embodiment eight is relative to above-described embodiment one to seven, and the characteristic to the first spectrum groupware is converted, and is keeping On the premise of making the first spectrum groupware opposite to the first exciting light and Stimulated Light Transflective characteristic, the first exciting light and it will be excited The Transflective characteristic of light is exchanged.The conversion can also be applied in embodiment one to seven, accordingly to each speculum Transflective characteristic be changed, and increase and decrease reflector plate or wavelength filter when needed, here is omitted.

Embodiment nine

Figure 10 is referred to, Figure 10 is the structural representation of the light supply apparatus of the utility model embodiment nine.Light supply apparatus bag The first light source 201, light guide system and Wavelength converter 206 are included, wherein, light guide system includes the first spectrum groupware 204a, collecting lens 205, the first relay lens 207, reflector plate 208, the light path correction relay lens 210 of component 209 and second, In addition, light supply apparatus also includes secondary light source 203, dodging device 202, filter wheel 211 and integrating rod 212.

Compared with embodiment three, difference in this case is that, the first exciting light that the first light source 201 is sent is by even After the even light of electro-optical device 202, the direction that the surface of Wavelength converter 206 is not orthogonal to primary optical axis is incident in collecting lens 205, Therefore, the first exciting light is before collecting lens 205 is incident to, and the central shaft of its key light direction of principal axis and collecting lens 205 is not parallel.

Due to reflection symmetry, the second exciting light is collected through collecting lens 205 and after outgoing, the primary optical axis of the second exciting light Also the surface of Wavelength converter 206 is not orthogonal to, the embodiment enables between the first exciting light and the second exciting light Angle further expands, so as to produce influence between avoiding two-beam.

In one embodiment, the light path correction spectrum groupware of component 209 and first is not parallel is set, and is incident to light path school Second exciting light of positive component 209 is not equal to 90 ° with being corrected the angle for the second exciting light that component 209 reflects by light path.Due to The incident direction angle skew of first exciting light so that angle skew also occurs for the direction of the second exciting light, and Stimulated Light not by Influence, therefore, for enable the second exciting light and Stimulated Light key light overlapping of axles, it is necessary to correct component by changing light path Angles control the direction of the second exciting light.In one embodiment, the second exciting light is through light path correction component reflection Afterwards, 90 ° ± 4 ° of angulation change.The technical scheme can remain to correct component by light path in the state of light path is offset slightly from Angles control the second exciting light to be overlapped with the light path of Stimulated Light, improve the free degree of light supply apparatus design.

The present embodiment also can be coupled in other each embodiments relative to the distinguishing characteristics of embodiment three, and the present embodiment is not detailed Each optical element carefully described can refer to retouching for the various embodiments described above for optical treatment and beam Propagation process of light beam etc. State, here is omitted.

Embodiment ten

Figure 11 is referred to, Figure 11 is the structural representation of the light supply apparatus of the utility model embodiment ten.Light supply apparatus bag The first light source 201, light guide system and Wavelength converter 206 are included, wherein, light guide system includes the first spectrum groupware 204a, collecting lens 205, the first relay lens 207, reflector plate 208, the light path correction relay lens 210 of component 209 and second, In addition, light supply apparatus also includes secondary light source 203, dodging device 202, filter wheel 211, integrating rod 212 and compensation light guiding group Part 213.

From unlike the above-mentioned embodiment including secondary light source 203, in the various embodiments described above, secondary light source 203 is sent Compensation light first incide wavelength convert section, be then scattered reflection after formed lambertian distribution light and together go out with Stimulated Light Penetrate, that is, compensate the light-emitting area position closing light of light and Stimulated Light in wavelength convert section；And the secondary light source 203 of the present embodiment ten The compensation light sent is not incident to wavelength convert section, but after Stimulated Light generation, by compensate light guide assembly 213 with by Laser closing light.The technical scheme avoids the light loss that compensation light is wavelength-converted device scattering and caused, and greatly improves Compensate the light utilization efficiency of light.

In the present embodiment, compensation light guide assembly 213 is arranged on the emitting light path of Stimulated Light, specifically, is arranged at On the emitting light path of integrating rod 212, Stimulated Light and compensation light are incident in compensation light guide assembly 213 from both direction respectively, from And be combined into a branch of.Compensation light guide assembly 213 can with as illustrated, set small echo area to realize on a transparency carrier, Wherein compensation light incides small echo area, is reflected by small echo area, most of area of Stimulated Light covering compensation light guide assembly 213 Domain, the Stimulated Light for inciding the transparency carrier of non-small echo area is directly transmitted.Further, it can also be caused by plated film small anti- The light of area's only reflection compensation optical wavelength range is penetrated, the light of other wave-length coverages is transmitted.In one embodiment, it will can also mend Repay light guide assembly 213 to exchange the Transflective characteristic of Stimulated Light and compensation light, can be compensated by being set on reflector plate Light transmission region realizes the technical scheme.

In the present embodiment, compensation light guide assembly 213 is arranged on the emitting light path of integrating rod 212, in other implementations In mode, compensation light guide assembly 213 can also be arranged at other positions, for example, the incident light of integrating rod 212 can be arranged at Light path on, or be arranged in the light path between Wavelength converter and filter wheel.In a word, the technical side of the present embodiment part Case objective is, it is to avoid compensation light incides wavelength convert section, so as to avoid compensation light because of the scattering of wavelength convert section The light loss caused.

The present embodiment may apply to originally on the compensation light that secondary light source 203 is sent with being excited the technical characteristic of actinic light In utility model other embodiment, optical treatment and light of each optical element that the present embodiment is not described in detail for light beam Beam transmitting procedure etc., can refer to the description of the various embodiments described above, here is omitted.

Embodiment 11

In above-described embodiment one to ten and each variant embodiment, light path correction component is all curved-surface reflection side, wherein, or Person is dissipated by convex refractive in face of light beam, or in face of light beam enters line convergence by concave reflection, light path correction component All it is by a device while realizing that the direction of propagation for changing the second exciting light is distributed with changing beam angle.

It is different, in the present embodiment, the function of curved-surface reflection side is realized by the combination of two optics, Change the direction of the second exciting light using plane reflection face, the angle for changing the second exciting light using lens is distributed.In an implementation In mode, convex curved reflecting surfaces are substituted by the combination of plane reflection face and concavees lens, both the second exciting light can be caused first to wear Concavees lens are crossed, plane reflection face is then incident on, it is also possible that the second exciting light is first reflected by plane reflection face, then transmitted Cross concavees lens.In another embodiment, concave reflection face is substituted by the combination of plane reflection face and convex lens, both may be used To cause the second exciting light to initially pass through convex lens, plane reflection face is then incident on, it is also possible that the second exciting light is first put down Face reflective surface, then transmitted through convex lens.

The present embodiment is replaced to light path correction component, is substituted for the combination with plane reflection face and concavees lens The embodiment of convex curved reflecting surfaces, other assemblies are referred to the light path correction component using convex curved reflecting surfaces in above-described embodiment Technical scheme specific descriptions；For substituting the embodiment party in concave reflection face with combining for plane reflection face and convex lens Formula, the specific of technical scheme that other assemblies are referred to the light path correction component using concave reflection face in above-described embodiment is retouched State, but it is identical with former curved-surface reflection side in face of the Transflective characteristic of Stimulated Light to meet plane reflection.

It is appreciated that on the basis of curved-surface reflection side, can also further increase one or more plane reflection faces, with Curved-surface reflection side collectively constitutes light path correction component, as long as so that the second exciting light primary optical axis after last time reflection is with being excited The key light overlapping of axles of light.

The utility model also requires to disclose a kind of optical projection system, and the optical projection system includes the light source in the various embodiments described above Device, in addition to optic modulating device and lens assembly, are adjusted by the light that the emergent light of light supply apparatus is projected to optic modulating device On device processed, and the spatial distribution of the light is modulated according to the picture signal of input, it is modulated after light go out through lens assembly Penetrate to form image, so as to realize projection display funciton.

Projection display system of the present utility model both can apply to projector's such as theatre projector, engineering projector, micro- Type projector, education projector, Pin Qiang projectors, laser television etc., can also be applied to image illumination such as image projection lamp, hand over The scenes such as logical instrument (car and boat aircraft) lamp, searchlight, stage lighting.

Embodiment described in this specification is only a part of embodiment of the utility model, rather than whole implementation Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made The every other embodiment obtained, is made up of the part or all of technical characteristic of the application any two or more than two embodiments Feasible technical scheme, belong to the utility model protection scope.

Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is all It is the equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or directly or indirectly uses In other related technical fields, similarly it is included in scope of patent protection of the present utility model.

Claims (12)

1. a kind of light supply apparatus, it is characterised in that including the first light source, light guide system and Wavelength converter；

First light source is used to launch the first exciting light, and first exciting light is incident to the light guiding along incident optical channel System；

The light guide system is used to guide first exciting light to the Wavelength converter；

The Wavelength converter include wavelength convert section and reflector segment, the Wavelength converter cycle movement so that The wavelength convert section and reflector segment timesharing are obtained periodically in the light path of the first exciting light, the wavelength-converting region Section absorbs first exciting light and outgoing Stimulated Light, the oblique surface for being incident upon the reflector segment of the first exciting light, quilt The second exciting light is formed after reflection；

The light guide system is additionally operable to collect the Stimulated Light and the second exciting light, and guides the Stimulated Light and second to excite Light is along outgoing optical channel outgoing；

Wherein, the light guide system includes light path correction component, and the light path correction component is located at second exciting light In light path, for reflecting second exciting light, and make the primary optical axis of the second exciting light after reflection and the master of the Stimulated Light Optical axis coincidence, is additionally operable to change the beam angle distribution of the second exciting light, makes second exciting light and the Stimulated Light along light Image space on the beam direction of propagation is overlapped.

2. light supply apparatus according to claim 1, it is characterised in that the light path correction component includes curved-surface reflection side, Direction and beam angle distribution for changing second exciting light simultaneously；Or

The light path correction component includes plane reflection face and lens, and the plane reflection face is used to change second exciting light Direction, the lens be used for change second exciting light angle distribution.

3. light supply apparatus according to claim 2, it is characterised in that the light path correction component include convex curved reflecting surfaces or Person includes the combination of plane reflection face and concavees lens, from the Wavelength converter to second exciting light and the Stimulated Light Overlapping positions, the light path of second exciting light is more than the light path of the Stimulated Light.

4. light supply apparatus according to claim 3, it is characterised in that the light guide system includes the first spectrum groupware, First spectrum groupware includes nonoverlapping first area and second area, and first exciting light is incident to firstth area Domain, second exciting light is incident to the second area, and the first area is special to the Transflective of first exciting light Property is identical to the Transflective characteristic of second exciting light with the second area；

Second exciting light transmits to the light path after the second area and corrects component, second exciting light and institute The Stimulated Light Exit positions light path that Stimulated Light is stated in first spectrum groupware is overlapped.

5. light supply apparatus according to claim 3, it is characterised in that the light guide system includes the first spectrum groupware, First spectrum groupware includes nonoverlapping first area and second area, and first exciting light is incident to firstth area Domain, second exciting light is incident to the second area, and the first area is special to the Transflective of first exciting light Property is opposite to the Transflective characteristic of second exciting light with the second area；

The light guide system include the second spectrum groupware, second exciting light transmitted after second spectrum groupware to The Stimulated Light Exit positions of the light path correction component, second exciting light and the Stimulated Light in second spectrum groupware Light path is overlapped.

6. light supply apparatus according to claim 2, it is characterised in that the light path correction component include concave reflection face or Person includes the combination of plane reflection face and convex lens, from the Wavelength converter to second exciting light and the Stimulated Light Overlapping positions, the light path of second exciting light is less than the light path of the Stimulated Light, and the light path correction component transmission is described Stimulated Light.

7. light supply apparatus according to claim 6, it is characterised in that the light guide system also includes the first light splitting group Part, first spectrum groupware includes first area, and first exciting light is incident to the first area, and described second excites Light swashs without first spectrum groupware, second exciting light with the Stimulated Light the second of light path correction component Luminous Exit positions light path is overlapped.

8. light supply apparatus according to claim 6, it is characterised in that the light guide system also includes the first light splitting group Part, first spectrum groupware includes nonoverlapping first area and second area, and first exciting light is incident to described the One region, second exciting light is incident to the second area, and transmission of the first area to first exciting light is anti- Penetrate characteristic opposite to the Transflective characteristic of second exciting light with the second area；

The light guide system also includes the second spectrum groupware, and second exciting light is without second spectrum groupware, institute State Stimulated Light successively respectively through first spectrum groupware and the second spectrum groupware guiding after, transmitted through the light path correction group Part, and overlapped in the second exciting light Exit positions that the light path corrects component with the second exciting light light path.

9. the light supply apparatus according to any one of claim 4,5,7 or 8, it is characterised in that also including secondary light source, is used In when the wavelength convert section be in first exciting light light path on when transmitting compensation light, the compensation light with it is described by Laser has overlapping wave-length coverage, and first spectrum groupware includes compensation light guidance field, for the compensation light to be drawn It is directed at the Wavelength converter.

10. light supply apparatus according to claim 1, it is characterised in that also including the secondary light source for launching compensation light With compensation light guide assembly, the compensation light guide assembly is arranged on the emitting light path of the Stimulated Light, the compensation light with The Stimulated Light has overlapping wave-length coverage, and the compensation light is closed with the Stimulated Light by the compensation light guide assembly Light.

11. according to claim 1~8, the light supply apparatus any one of 10, it is characterised in that be incident to the light path school The angle of second exciting light of second exciting light of positive component with being corrected component reflection by the light path is not equal to 90 °.

12. a kind of optical projection system, including the light supply apparatus any one of claim 1 to 11, in addition to optic modulating device And lens assembly.