CN102591120B - Light source device, light source generation method and laser projection machine comprising light source device - Google Patents
Light source device, light source generation method and laser projection machine comprising light source device Download PDFInfo
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- CN102591120B CN102591120B CN201210040467.XA CN201210040467A CN102591120B CN 102591120 B CN102591120 B CN 102591120B CN 201210040467 A CN201210040467 A CN 201210040467A CN 102591120 B CN102591120 B CN 102591120B
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Abstract
The invention discloses a light source device, a light source generation method and a laser projection machine comprising the light source device. The light source device comprises light sources, wherein the light sources comprise a first light source, a second light source and a third light source with different wavelengths; the light source device further comprises a collimating part, a reflecting part, a converging and reflecting part and a converging part, wherein the collimating part is positioned at the ejection side of the first light source, the second light source and the third light source and is used for carrying out collimation processing on the received light sources; the reflecting part is used for reflecting the first light source and the second light source to the converging and reflecting part; the converging and reflecting part is used for carrying out reflection processing on the first light source and the second light source reflected by the reflecting part and carrying out convergence processing on the third light source after collimation processing; and the converging part is used for carrying out convergence processing on the first light source, the second light source and the third light source received so as to enable the first light source, the second light source and the third light source to enter to a light receiving part along the same direction. According to the invention, the quantity of parts in the light source device can be effectively reduced, the light path is simplified, the energy utilization ratio is increased, and the installation and the maintenance are simple.
Description
Technical field
The present invention relates to Color Laser Projection Technology, the laser projection that relates in particular to a kind of light supply apparatus, light source generation method and comprise this light supply apparatus.
Background technology
In recent years, laser projection because its principle is simple, manufacture difficulty is low, rich color and visual impact is little etc. that advantage is widely used in multiple occasion, such as television projection, micro projection and some commercializations and entertainment systems etc.
As everyone knows, optical frame at least need to be comprised of the light wave of different predominant wavelengths, for example blue, green and red light wave.Technology based on current, a kind of light source of wavelength of generally can usining generates the light source of another kind of wavelength as exciting light, then again with the light source timesharing transmitting of other wavelength, on projection screen, demonstrate various pictures.The blue laser that the blue-light semiconductor laser instrument of for example usining is sent, as exciting light, excites green light fluorescent powder to produce green glow.
Fig. 1 is structure and the principle schematic of light supply apparatus in prior art.Referring to Fig. 1, the light source here comprises: the first light source 101, secondary light source (not shown) and the 3rd light source 116 that wavelength is different.This light supply apparatus comprises: collimating mirror 102, catoptron group 103, the first collector lens 104, the first dichroic sheet 105, the second collector lens 106, fluorescent wheel 107, the first deviation mirror 109a, the second deviation mirror 109b, the first catoptron 110a, the second catoptron 110b, the second dichroic sheet 111, the 3rd collector lens 112, optical wand 113, the 4th collector lens 114 and the 3rd deviation mirror 115.
Wherein the first dichroic sheet 105 allows the first light source and the 3rd light source to see through, secondary light source is reflected, and the second dichroic sheet 111 allows the first light source to see through, and secondary light source and the 3rd light source are reflected.
And, in the subregion of fluorescent wheel 107, be coated with fluorescent powder, take the first light source 101 as exciting light in the situation that, the region that is coated with fluorescent powder produces secondary light source.Because fluorescent wheel is rotatable, the first light source is irradiated to the zones of different of fluorescent wheel 107, can produce the light of different wave length.
In Fig. 1, the light beam with the first wavelength of the first light source 101 outgoing is divergent shape and is incident to collimating mirror 102, and collimating mirror 102 becomes parallel beam by this beam collimation; The reflex of catoptron makes the optical axis 90-degree rotation of this parallel beam, and the parallel beam after the first 104 pairs of collector lenses rotation optical axis is assembled, to the first dichroic sheet 105 outgoing; The light beam of the first light source sees through after the first dichroic sheet 105, through the second collector lens 106, assembles after processing, arrives fluorescent wheel 107.
Fluorescent wheel 107 rotates under the driving of CD-ROM drive motor 117.For the fluorescent wheel 107 in rotation, when if the first light source 101 is incident in phosphor area, excitated fluorescent powder is launched the secondary light source with second wave length, this secondary light source is with the direction outgoing in contrast to the first light source incident direction, arrive after the first dichroic sheet 105, its optical axis is rotated by 90 degrees under reflex, then after the first deviation mirror 109a, the first catoptron 110a, the second deviation mirror 109b, to the second dichroic sheet 111 incidents; Because 111 pairs of secondary light sources of the second dichroic sheet reflect, light beam directive the 3rd collector lens 112 of secondary light source, finally focuses in optical wand 113.In brief, when the first light source 101 is incident in the phosphor area of fluorescent wheel 107, what optical wand 113 was collected is the secondary light source with second wave length.
If the first light source 101 be incident in uncoated fluorescent powder on fluorescent wheel 107 see through region time, the first light source 101 transmission fluorescent wheels 107, after the convergence of the 4th collector lens 114, the second catoptron 110b and the 3rd deviation mirror 115, reflecting and turn to, see through the second dichroic sheet 111 and transfer to the 3rd collector lens 112, finally focus in optical wand 113.That is to say, the first light source 101 be incident in fluorescent wheel 107 see through region time, what optical wand 113 was collected is first light source with the first wavelength.
There is the 3rd light source 116 of three-wavelength to be parallel to the direction outgoing of the optical axis of the first light source, after the convergence of the second collector lens 106, arrive the first dichroic sheet 105, because the first dichroic sheet 105 allows the 3rd light source to see through, the 3rd light source, again through after the turning to, reflect and turn to of the first deviation mirror 109a, the first catoptron 110a, the second deviation mirror 109b, arrives the second dichroic sheet 111; The second dichroic sheet 111, by the optical axis 90-degree rotation of the 3rd light source 116, through the 3rd collector lens 112, finally focuses in optical wand 113.
Structure based on above and principle, by controlling lighting the time of the first light source and the 3rd light source, control the rotational speed of fluorescent wheel simultaneously, can realize the first light source, secondary light source, the 3rd light source timesharing and enter in optical wand 113, obtain the hot spot of different colours, and then form display frame.
Although above-mentioned existing light supply apparatus is achieved laser projection,, from Fig. 1, can find very intuitively, optics in this light supply apparatus is too much, light path is long.Light beam is every all can lose part energy through an optics, and the length of light path also can affect the energy loss of light beam.Therefore after each light source transmits in the light supply apparatus shown in Fig. 1, energy has largely and reduces, and capacity usage ratio is lower.
And in existing light supply apparatus, the more one-piece construction that causes of optics quantity is comparatively complicated, and volume also can be correspondingly larger.Such light supply apparatus obviously cannot adapt to more and more significantly miniaturization requirement.
In addition, in order to guarantee the normal operation of light supply apparatus, must guarantee the correctness of each optics self installation site and relative position, assembly difficulty is larger; When optics wherein breaks down, cannot find problem place the short time, maintenance difficulty is higher.
Therefore, exist a kind of to improving the needs of the light supply apparatus of capacity usage ratio.
Summary of the invention
The laser projection that embodiments of the invention provide a kind of light supply apparatus, light source generation method and comprise this light supply apparatus, can improve capacity usage ratio.
In an embodiment of the present invention, light supply apparatus comprises light source, this light source comprises the first light source, secondary light source and the 3rd light source with different predominant wavelengths, this light supply apparatus further comprises: collimating components, reflection part, convergence reflex parts, convergence parts and light-receiving member, and wherein reflection part, convergence reflex parts and convergence parts are installed with one heart; Described collimating components is positioned at the emitting side of the first light source, secondary light source and the 3rd light source, for processing that the light source receiving is collimated, obtains parallel beam; The first light source and secondary light source after described reflection part is processed collimation reflex to described convergence reflex parts; Described convergence reflex parts reflect processing to the first light source and the secondary light source of described reflection part reflection, and the 3rd light source after collimation is processed is assembled processing, and the first light source, secondary light source and the 3rd light source are transmitted to described convergence parts; The first light source, secondary light source and the 3rd light source that described convergence parts docking is received are assembled processing, so that the first light source, secondary light source and the 3rd light source are incident to described light-receiving member in the same direction.
In one embodiment of the invention, the center line connecting direction of described reflection part, convergence reflex parts and convergence parts is first direction; The first light source, secondary light source and the 3rd light source after described collimating components is further processed collimation are along the direction outgoing parallel or consistent with described first direction.
Wherein, described reflection part comprises catoptron, receives the first light source and secondary light source from described collimating components outgoing, reflects and assembles after processing, to described convergence reflex parts transmission; Described convergence reflex parts comprise: the first collector lens, described the first collector lens comprises spectro-film on the surface of described collimating components dorsad, so that the first light source of described reflection part outgoing and secondary light source are reflected and the 3rd light source of described collimating components outgoing is assembled, and to described convergence parts transmission; Described convergence parts comprise negative focal length lens, and the first light source from described convergence reflex parts, secondary light source and the 3rd light source are assembled to processing, obtain reduced to receive threshold and along the light beam of described first direction outgoing.
Wherein said catoptron is concave mirror, non-spherical reflector, or free-form surface mirror.
Described concave mirror comprises loop concave reflector.
Wherein, the first light source and secondary light source are with annular beam outgoing to described collimating components, and wherein to take first direction place plane be interphase to the light beam of the first light source and secondary light source; The 3rd light source with circular light beam outgoing to described collimating components, within wherein this circle light beam is positioned at the ring of annular beam of the first light source and secondary light source; Or the first light source and secondary light source are with annular beam outgoing to described collimating components, the 3rd light source is with circular light beam outgoing to described collimating components, and wherein the annular beam of the first light source is between the annular beam of secondary light source and the circular light beam of the 3rd light source; Or the first light source and secondary light source are with annular beam outgoing to described collimating components, the 3rd light source is with circular light beam outgoing to described collimating components, and wherein the annular beam of secondary light source is between the annular beam of the first light source and the circular light beam of the 3rd light source; The central point of described annular beam and circular light beam drops on the extended line of first direction.
Wherein, described catoptron comprises the first sub-reflecting part and the second sub-reflecting part: at the light beam of the first light source and secondary light source, take first direction place plane in interfacial situation, the first light source reflexes to the first collector lens by the first sub-reflecting part and the second sub-reflecting part after collimation is processed, and secondary light source reflexes to the first collector lens by the first sub-reflecting part and the second sub-reflecting part after collimation is processed; With at the annular beam of the first light source in the situation between the annular beam of secondary light source and the circular light beam of the 3rd light source, the first light source reflexes to the first collector lens by the second sub-reflecting part after collimation is processed, and secondary light source reflexes to the first collector lens by the first sub-reflecting part after collimation is processed; In situation at the annular beam of secondary light source between the annular beam of the first light source and the circular light beam of the 3rd light source, the first light source reflexes to the first collector lens by the first sub-reflecting part after collimation is processed, and secondary light source reflexes to the first collector lens by the second sub-reflecting part after collimation is processed.
Wherein, the first sub-reflecting part and the second sub-reflecting part arrange according to distribution and the quantity of the annular beam of the first light source and secondary light source outgoing.
Wherein, described negative focal length lens and described catoptron form the second telescopic system, and described negative focal length lens and described loop concave reflector form i telescopic system, i=2,3 ..., n+1, i and n are natural number, n be more than or equal to 1 and its value by the number of rings of Perimeter Truss Reflector, determined; Described the first collector lens and described negative focal length lens form the first telescopic system.
The multiplying power of described the first telescopic system is less than the multiplying power of described i telescopic system, and with ring, the distance from the center of circle increases i telescopic system multiplying power.
Wherein, described light-receiving member is with described convergence reflex parts, described convergence parts with described reflection part is concentric installs.
Wherein, described light-receiving member comprises: the second collector lens and optical wand, and the second collector lens enters the described light source of described light-receiving member and assembles processing for treating, and described optical wand is for collecting the light source of processing through the convergence of the second collector lens.
Or described light-receiving member comprises: fly's-eye lens, for receiving and collect the described light source of waiting to enter described light-receiving member.
In the light source generation method of the embodiment of the present invention, for comprising the light supply apparatus of light source, collimating components, reflection part, convergence reflex parts, convergence parts and light-receiving member, light source comprises the first light source, secondary light source and the 3rd light source with different predominant wavelengths, the method comprises: the light source that collimation parts the receive processing that collimates, obtains parallel beam; The first light source and secondary light source after being processed by reflection part collimation reflect; By described convergence reflex parts, the first light source and the secondary light source of described reflection part reflection are reflected to processing, the 3rd light source after collimation is processed is assembled processing, and the first light source, secondary light source and the 3rd light source are transmitted to described convergence parts; The first light source, secondary light source and the 3rd light source by described convergence parts docking, received are assembled processing, so that the first light source, secondary light source and the 3rd light source are incident to described light-receiving member in the same direction.
Laser projection of the present invention, comprising: bare engine module, control module, electric power driving module and aforesaid light supply apparatus, and wherein, described bare engine module is comprised of even optical illumination parts, display chip and projection lens; Described light supply apparatus provides available light source for laser projection; Described bare engine module receives the light source that described light supply apparatus provides, even optical illumination parts are wherein to the further even light of light source, display chip generates picture under the real-time control of control module, and the picture generating goes out picture to display through projection lens projects again; Described electric power driving module provides driving electric energy for described light supply apparatus and display chip.
In exemplary optical device of the present invention, by collimating components, convergence reflex parts, convergence parts and reflection part, to thering is each light source of different wave length, collimate, assemble and reflect processing, bootable for being incident in the same direction light-receiving member.The number of components comprising in this light supply apparatus is less, and light path is shorter.Compare with existing light supply apparatus, light supply apparatus of the present invention can reduce the energy loss of laser beam in transmitting procedure effectively, thereby improves capacity usage ratio.
Correspondingly, in the situation that light utilization efficiency is high, the laser projection in the present invention just can provide that rich color, stereovision are strong, picture shows image clearly.
The present invention both, applicable to the laser projection generally using, can also be applicable to compound eye laser projection, and versatility is stronger.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described.Apparently, the accompanying drawing in below describing is only some embodiments of the present invention, for those of ordinary skills, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
Fig. 1 is structure and the principle schematic of light supply apparatus in prior art.
Fig. 2 is the illustrative principles schematic diagram according to the light supply apparatus of the embodiment of the present invention.
Fig. 3 is according to the structural representation of the light supply apparatus of the embodiment of the present invention.
Fig. 4 is another structural representation according to the light supply apparatus of the embodiment of the present invention.
Fig. 5 is according to the schematic diagram of the laser projection of the embodiment of the present invention.
Embodiment
Below with reference to accompanying drawing, the technical scheme of various embodiments of the present invention is carried out to clear, complete description, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, all belong to the scope that the present invention protects.
Fig. 2 is the illustrative principles schematic diagram according to the light supply apparatus of the embodiment of the present invention.As shown in Figure 2, light supply apparatus in the invention process comprises: comprise there is the first light source 201, the secondary light source 208 of different wave length, the incident light source of the 3rd light source 216, collimating components 202, convergence reflex parts 217, convergence parts 218, reflection part 219 and light-receiving member 221.
Wherein, reflection part 219, convergence reflex parts 217 and convergence parts 218 are installed with one heart;
Collimating components 202 is positioned at the emitting side of the first light source 201, secondary light source 208 and the 3rd light source 216, for processing that the light source receiving is collimated, obtains parallel beam; The first light source 201 and secondary light source 208 after reflection part 219 is processed collimation reflex to convergence reflex parts 217;
The first light source 201 and the secondary light source 208 of 219 reflections of 217 pairs of reflection parts of convergence reflex parts reflect processing, the 3rd light source 216 after collimation is processed is assembled processing, and the first light source 201, secondary light source 208 and the 3rd light source 216 are transmitted to described convergence parts;
The first light source 201, secondary light source 208 and the 3rd light source 216 that 217 pairs of parts of convergence receive are assembled processing, so that the first light source 201, secondary light source 208 and the 3rd light source 216 are incident to described light-receiving member 221 in the same direction.
Above-mentioned light supply apparatus, by collimating components, convergence reflex parts, convergence parts and reflection part, collimates, assembles and reflect processing having each light source of different wave length, bootable for being incident in the same direction light-receiving member.The number of components comprising in this light supply apparatus is less, and light path is shorter.Compare with existing light supply apparatus, light supply apparatus of the present invention can reduce the energy loss of laser beam in transmitting procedure effectively, thereby improves capacity usage ratio.And, in the light supply apparatus of the embodiment of the present invention, light path being changed to the convergence reflex parts, convergence parts and the reflection part that play a crucial role and only require concentric installation, matching requirements are very simple; When any parts wherein break down, even all parts are investigated one by one, time and difficulty that finding out guilty culprit needs all have obvious reduction compared with prior art.
According to the present invention, the center line connecting direction of reflection part 219, convergence reflex parts 217 and convergence parts 218 is first direction; The first light source 201, secondary light source 208 and the 3rd light source 216 after collimating components 202 is further processed collimation are along the direction outgoing parallel or consistent with first direction.
Reflection part 219 for example comprises catoptron, and this catoptron can be concave mirror, non-spherical reflector, or free-form surface mirror, for receiving the first light source 201 and the secondary light source 208 from collimating components 202 outgoing, reflect and assemble after processing, to 217 transmission of convergence reflex parts; Convergence reflex parts 217 for example can comprise the first collector lens, and this first collector lens dorsad surface of collimating components 202 comprises spectro-film, can the first light source 201 be reflected and the 3rd light source 216 is assembled, and to assembling parts 218 transmission; Assemble parts 218 and can comprise negative focal length lens, the first light source 201 from convergence reflex parts 217, secondary light source 208 and the 3rd light source 216 are assembled to processing, obtain reduced to receive threshold and along the light beam of first direction outgoing, the diameter of outgoing beam is less than the diameter of incident beam.In the present invention, concave mirror comprises loop concave reflector.
The light-receiving member 221 here can with assemble reflection part 217, assemble parts 218 and the concentric installation of reflection part 219; The first light source 201, secondary light source 208 and the 3rd light source 216 to receive threshold transmits to light-receiving member 221 along first direction by reduced to assemble parts 218.
In one embodiment of the invention, light source generation method is for comprising the light supply apparatus of light source, collimating components, reflection part, convergence reflex parts, convergence parts and light-receiving member, light source comprises the first light source, secondary light source and the 3rd light source with different predominant wavelengths, the method comprises: the light source that collimation parts the receive processing that collimates, obtains parallel beam; The first light source and secondary light source after being processed by reflection part collimation reflect; By convergence reflex parts, the first light source and the secondary light source of reflection part reflection are reflected to processing, the 3rd light source after collimation is processed is assembled processing, and the first light source, secondary light source and the 3rd light source are transmitted to assembling parts; The first light source, secondary light source and the 3rd light source by the docking of convergence parts, received are assembled processing, so that the first light source, secondary light source and the 3rd light source are incident to described light-receiving member in the same direction.
In one embodiment of the invention, laser projection comprises: foregoing light supply apparatus, bare engine module, control module and electric power driving module.Wherein, bare engine module is comprised of even optical illumination parts, display chip and projection lens.Light supply apparatus provides available light source for laser projection.Bare engine module receives the light source that light supply apparatus provides, and even optical illumination parts are wherein to the further even light of light source, and display chip generates picture under the real-time control of control module, and the picture of generation goes out picture to display through projection lens projects again.Electric power driving module provides driving electric energy for light supply apparatus and display chip.
Below by the concrete scheme of describing in detail in the embodiment of the present invention.
Fig. 3 is according to the structural representation of the light supply apparatus of the embodiment of the present invention.
Referring to Fig. 3, in the present embodiment, incident light source is included as the first light source 301, secondary light source 308 and the 3rd light source 316 separately with different wave length.These three light sources can be in homonymy outgoing.Specifically, these three light sources can send laser beam according to following mode:
Mode 1, the first light source 301 and secondary light source 308 are with annular beam outgoing to collimating components, and wherein to take first direction place plane be interphase to the light beam of the first light source 301 and secondary light source 308; The 3rd light source 316 with circular light beam outgoing to collimating components, within wherein this circle light beam is positioned at the ring of aforementioned annular beam.
Mode 2, the first light source 301 and secondary light source 308 with annular beam outgoing to collimating components, the 3rd light source is with circular light beam outgoing to collimating components, and wherein the annular beam of the first light source 301 is between the annular beam of secondary light source 308 and the circular light beam of the 3rd light source 316.
Mode 3, the first light source 301 and secondary light source 308 with annular beam outgoing to collimating components, the 3rd light source is with circular light beam outgoing to collimating components, and wherein the annular beam of secondary light source 308 is between the annular beam of the first light source 301 and the circular light beam of the 3rd light source 316.
The central point of above-mentioned annular beam and circular light beam all drops on the extended line of first direction.
Light supply apparatus in the present embodiment comprises: collimating lens system 302, the first collector lens 317, negative focal length lens 318, catoptron 319, the second collector lens 312 and optical wand 313.The first collector lens 317, negative focal length lens 318, catoptron 319, the second collector lens 312 and optical wand 313 are all installed with one heart.Below the center line connecting direction of all parts of installing is with one heart called to first direction.
Collimating lens system 302 comprises at least one collimation lens, all be positioned at the emitting side of the first light source 301, secondary light source 308 and the 3rd light source 316, to the processing that collimates of the light beam of the first light source 301, secondary light source 308 and the 3rd light source 316 that receive, obtain parallel beam, and along direction outgoing parallel with first direction or that overlap.
The first collector lens 317 is the lens with positive focal length in the side towards collimating lens system 302, on the surface of collimating lens system 302 (A face), there is spectro-film dorsad, this spectro-film reflects the first light source 301 and secondary light source 308, and the 3rd light source 316 is carried out to transmission.When the first light source 301 and secondary light source 308 incide on the first collector lens 317, due to the effect of spectro-film, can only be reflected; When the 3rd light source 316 incides on this first collector lens 317, because first touching a side of the lens with positive focal length, be converged, while touching spectro-film again, be transmitted away, when the 3rd light source 316 is through the first collector lens 317, be transformed to light beam that diameter dwindles to some extent and along first direction outgoing.
Negative focal length lens 318 are for example concave mirrors, and these lens are assembled processing to the light beam receiving; Catoptron 319 is for example concave mirror, and non-spherical reflector, or free-form surface mirror reflect and assemble to first direction the light beam receiving.Under the outgoing mode of each light source, the first light source 301 and secondary light source 308, after collimating lens system 302, first arrive catoptron 319 in the present embodiment, directive negative focal length lens 318 again after being reflected and assembling.Then, after the convergence of negative focal length lens 318 is processed, form reduced to receive threshold parallel beam, along first direction to the second collector lens 312 outgoing.The 3rd light source 316, after collimating lens system 302, by the first collector lens 317 transmissions convergence, is then assembled at negative focal length lens 318 places again, obtains reduced to receive threshold parallel beam, along first direction to the second collector lens 312 outgoing.
The second collector lens 312 focuses to optical wand 313 by the light beam receiving, and obtain meeting optical wand 313 and receive the light beam requiring, and to optical wand 313 outgoing; Optical wand 313 is collected the light beam of the second collector lens 312 outgoing, the light source of usining as laser projection.The second collector lens 312 in the present embodiment and optical wand 313 the two composition light-receiving member 321.
In the present embodiment, the transmission light path of each light source is:
The first light source 301 and secondary light source 308 are transformed into parallel beam after the collimation of collimating lens system 302 is processed, and are incident to catoptron 319; Catoptron 319 reflects the light beam of the first light source 301 and secondary light source 308 to the first collector lens 317; The first collector lens 317, towards the lip-deep spectro-film of catoptron 319, reflects the light beam of the first light source 301 and secondary light source 308 to negative focal length lens 318; After the convergence of negative focal length lens 318 is processed, form reduced to receive threshold parallel beam, then arrive in the second collector lens 312 and optical wand 313.
The 3rd light source 316 is transformed into parallel beam after the processing of collimating lens system 302, and is incident to the first optically focused mirror lens 317; The spectro-film of the first optically focused mirror lens 317 allows the light beam of the 3rd light source 316 to assemble and is transmitted through negative focal length lens 318; After the light beam of the 3rd light source 316 that 318 pairs, negative focal length lens receive is assembled and processed, form reduced to receive threshold parallel beam, then be sent in the second collector lens 312 and optical wand 313.
Fig. 4 is another structural representation according to the light supply apparatus of the embodiment of the present invention.In the scheme shown in this figure, the first light source 301 and secondary light source 308 are in aforesaid mode 1 to the annular beam outgoing in mode 3, and now, catoptron 319 can comprise the first sub-reflecting part 319A and the second sub-reflecting part 319B.Wherein, at the light beam of the first light source 301 and secondary light source 308, take first direction place plane in interfacial situation, the first light source 301 reflexes to the first collector lens by the first sub-reflecting part 319A and the second sub-reflecting part 319B after collimation is processed, and secondary light source 308 reflexes to the first collector lens by the first sub-reflecting part 319A and the second sub-reflecting part 319B after collimation is processed; In situation at the annular beam of the first light source 301 between the annular beam of secondary light source 308 and the circular light beam of the 3rd light source 316, the first light source 301 reflexes to the first collector lens 317 by the second sub-reflecting part 319B after collimation is processed, and secondary light source 308 reflexes to the first collector lens 317 by the first sub-reflecting part 319A after collimation is processed; In situation at the annular beam of secondary light source 308 between the annular beam of the first light source 301 and the circular light beam of the 3rd light source 316, the first light source 301 reflexes to the first collector lens 317 by the first sub-reflecting part 319A after collimation is processed, and secondary light source 308 reflexes to the first collector lens 317 by the second sub-reflecting part 319B after collimation is processed.
The first sub-reflecting part 319A in the present embodiment and the second sub-reflecting part 319B can distribute according to the annular beam of the first light source 301 and secondary light source 308 outgoing and quantity arranges.The first sub-reflecting part 319A and the second sub-reflecting part 319B for example can distribute in the form of a ring on catoptron 319.If the first light source 301 or secondary light source 308 separately formed annular beam are more than one, correspondingly, the quantity of the first sub-reflecting part 319A or the second sub-reflecting part 319B can be also more than one.
In the present embodiment, there is the first light source, secondary light source and the separated outgoing of the 3rd light source of different wave length, as long as adjust the outgoing time of each light source according to actual demand, can realize at different time and show different colors, to meet the requirement of laser projection.
In the transmitting procedure of each light source, the first collector lens 317 and negative focal length lens 318, negative focal length lens 318 and catoptron 319 that the present embodiment has spectro-film form two cover telescopic systems, the light source-guide of different wave length is become to different light paths, but final all light sources all enter into light-receiving member with close diameter.The telescopic system being formed by negative focal length lens 318 and catoptron 319 in the present embodiment is processed the first light source and secondary light source, the telescopic system that the first collector lens 317 and negative focal length lens 318 form is processed the 3rd light source, the first light source is in the outer ring of the 3rd light source, the multiplying power of the telescopic system therefore, being formed by negative focal length lens 318 and catoptron 319 is greater than the telescopic system being formed by the first collector lens 317 and negative focal length lens 318.In the situation that is loop concave reflector at catoptron, described negative focal length lens and described loop concave reflector form n telescopic system, and n is more than or equal to 1 natural number and its value to be determined by the number of rings of Perimeter Truss Reflector.The multiplying power of the telescopic system that negative focal length lens 318 and catoptron 319 form is less than the multiplying power of n telescopic system of described negative focal length lens and described catoptron composition, and n telescopic system multiplying power increases with the distance of encircling from the center of circle.
From front, the present embodiment only can be realized light path by three optical elements and guide, and energy loss is very limited, and the lifting amplitude of capacity usage ratio is larger; And the minimizing of number of components and the designing requirement of installing with one heart, all reduce installation, debugging and maintenance difficulty greatly.
In the present embodiment, the concentric installation of the first collector lens 317, negative focal length lens 318 and catoptron 319 in light-receiving member and front end light path, now can complete the guiding to the first light source, secondary light source and the 3rd light source without the optics of introducing again other.
In addition, the light-receiving member that the second collector lens in the light supply apparatus of the present embodiment and optical wand form also can be replaced by fly's-eye lens, for receiving and collect the light source of light-receiving member to be entered.
Fig. 5 is according to the schematic diagram of the laser projection of the embodiment of the present invention.Referring to Fig. 5, laser projection comprises: foregoing light supply apparatus 500, bare engine module 501, electric power driving module 502 and control module 503.Wherein, bare engine module 501 is comprised of even optical illumination parts, display chip and projection lens.Light supply apparatus 500 provides available light source for laser projection.The light source that bare engine module 501 provides for receiving described light supply apparatus, even optical illumination parts are wherein to the further even light of light source, display chip generates picture under the real-time control of control module 503, and the picture of generation goes out picture to display through projection lens projects again.Described electric power driving module 502 provides driving electric energy for light supply apparatus and display chip.
By each embodiment provided by the invention, by each light sources transmit of different predominant wavelengths to the process of light-receiving member, the comparatively simple convergence reflex parts of optical principle have only been used, and the negligible amounts of these parts, effectively simplified light supply apparatus structure, shortened light path, thereby improved capacity usage ratio, and then improved the image quality of laser projection.
In addition, in each embodiment of the present invention, by comparatively simple structure, can meet the diversity requirement that light path changes, design ingeniously, but installation, modulation and maintenance difficulty are all lower.
Light supply apparatus in each embodiment of the present invention both, applicable to the laser projection generally using, can also be applicable to compound eye laser projection, had higher versatility.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if of the present invention these are revised and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also comprises these changes and modification interior.
Claims (14)
1. a light supply apparatus, comprises light source, and this light source comprises the first light source, secondary light source and the 3rd light source with different predominant wavelengths, it is characterized in that, this light supply apparatus further comprises:
Collimating components, reflection part, convergence reflex parts, convergence parts and light-receiving member, wherein reflection part, convergence reflex parts and convergence parts are installed with one heart;
Described collimating components is positioned at the emitting side of the first light source, secondary light source and the 3rd light source, for processing that the light source receiving is collimated, obtains parallel beam;
The first light source and secondary light source after described reflection part is processed collimation reflex to described convergence reflex parts;
Described convergence reflex parts reflect processing to the first light source and the secondary light source of described reflection part reflection, and the 3rd light source after collimation is processed is assembled processing, and the first light source, secondary light source and the 3rd light source are transmitted to described convergence parts;
The first light source, secondary light source and the 3rd light source that described convergence parts docking is received are assembled processing, so that the first light source, secondary light source and the 3rd light source are incident to described light-receiving member in the same direction.
2. light supply apparatus according to claim 1, described reflection part, convergence reflex parts and the center line connecting direction of assembling parts are first direction;
The first light source, secondary light source and the 3rd light source after described collimating components is further processed collimation are along the direction outgoing parallel or consistent with described first direction.
3. light supply apparatus according to claim 2, described reflection part comprises catoptron, receives the first light source and secondary light source from described collimating components outgoing, after reflecting and assembling and process, to described convergence reflex parts, transmits;
Described convergence reflex parts comprise: the first collector lens, described the first collector lens comprises spectro-film on the surface of described collimating components dorsad, so that the first light source of described reflection part outgoing and secondary light source are reflected and the 3rd light source of described collimating components outgoing is assembled, and to described convergence parts transmission;
Described convergence parts comprise negative focal length lens, and the first light source from described convergence reflex parts, secondary light source and the 3rd light source are assembled to processing, obtain reduced to receive threshold and along the light beam of described first direction outgoing.
4. light supply apparatus according to claim 3, is characterized in that, described catoptron is concave mirror, non-spherical reflector, or free-form surface mirror.
5. light supply apparatus according to claim 4, is characterized in that, described concave mirror comprises loop concave reflector.
6. according to one of any described light supply apparatus of claim 3 to 5, it is characterized in that, the first light source and secondary light source are with annular beam outgoing to described collimating components, and wherein to take first direction place plane be interphase to the light beam of the first light source and secondary light source; The 3rd light source with circular light beam outgoing to described collimating components, within wherein this circle light beam is positioned at the ring of annular beam of the first light source and secondary light source;
Or the first light source and secondary light source are with annular beam outgoing to described collimating components, the 3rd light source is with circular light beam outgoing to described collimating components, and wherein the annular beam of the first light source is between the annular beam of secondary light source and the circular light beam of the 3rd light source;
Or the first light source and secondary light source are with annular beam outgoing to described collimating components, the 3rd light source is with circular light beam outgoing to described collimating components, and wherein the annular beam of secondary light source is between the annular beam of the first light source and the circular light beam of the 3rd light source;
The central point of above-mentioned annular beam and circular light beam all drops on the extended line of first direction.
7. light supply apparatus according to claim 6, is characterized in that, described catoptron comprises the first sub-reflecting part and the second sub-reflecting part:
At the light beam of the first light source and secondary light source, take first direction place plane in interfacial situation, the first light source reflexes to the first collector lens by the first sub-reflecting part and the second sub-reflecting part after collimation is processed, and secondary light source reflexes to the first collector lens by the first sub-reflecting part and the second sub-reflecting part after collimation is processed; With
In situation at the annular beam of the first light source between the annular beam of secondary light source and the circular light beam of the 3rd light source, the first light source reflexes to the first collector lens by the second sub-reflecting part after collimation is processed, and secondary light source reflexes to the first collector lens by the first sub-reflecting part after collimation is processed;
In situation at the annular beam of secondary light source between the annular beam of the first light source and the circular light beam of the 3rd light source, the first light source reflexes to the first collector lens by the first sub-reflecting part after collimation is processed, and secondary light source reflexes to the first collector lens by the second sub-reflecting part after collimation is processed.
8. light supply apparatus according to claim 7, is characterized in that, the first sub-reflecting part and the second sub-reflecting part arrange according to distribution and the quantity of the annular beam of the first light source and secondary light source outgoing.
9. according to the light supply apparatus described in claim 5 or 7, it is characterized in that, described negative focal length lens and described loop concave reflector form i telescopic system, i=2,3 ..., n+1, i and n are natural number and n is more than or equal to 1, and n determines by the number of rings of Perimeter Truss Reflector, and described the first collector lens and described negative focal length lens form the first telescopic system;
The multiplying power of described the first telescopic system is less than the multiplying power of described i telescopic system, and with ring, the distance from the center of circle increases i telescopic system multiplying power.
10. according to the light supply apparatus described in claim 3,4,5 or 7, it is characterized in that, described light-receiving member is with described convergence reflex parts, described convergence parts and described reflection part is concentric installs.
11. light supply apparatuses according to claim 1, is characterized in that, described light-receiving member comprises:
The second collector lens and optical wand, the second collector lens enters the described light source of described light-receiving member and assembles processing for treating, and described optical wand is for collecting the light source of processing through the convergence of the second collector lens.
12. light supply apparatuses according to claim 1, is characterized in that, described light-receiving member comprises: fly's-eye lens, and for receiving and collect the described light source of waiting to enter described light-receiving member.
13. 1 kinds of light source generation methods, it is characterized in that, for comprising the light supply apparatus of light source, collimating components, reflection part, convergence reflex parts, convergence parts and light-receiving member, described light source comprises the first light source, secondary light source and the 3rd light source with different predominant wavelengths, and the method comprises:
The light source that collimation parts the receive processing that collimates, obtains parallel beam;
The first light source and secondary light source after being processed by reflection part collimation reflect;
By described convergence reflex parts, the first light source and the secondary light source of described reflection part reflection are reflected to processing, the 3rd light source after collimation is processed is assembled processing, and the first light source, secondary light source and the 3rd light source are transmitted to described convergence parts;
The first light source, secondary light source and the 3rd light source by described convergence parts docking, received are assembled processing, so that the first light source, secondary light source and the 3rd light source are incident to described light-receiving member in the same direction.
14. 1 kinds of laser projections, is characterized in that, this laser projection comprises: bare engine module, control module, electric power driving module and according to the light supply apparatus one of claim 1 to 12 Suo Shu, wherein,
Described bare engine module is comprised of even optical illumination parts, display chip and projection lens;
Described light supply apparatus provides available light source for laser projection;
Described bare engine module receives the light source that described light supply apparatus provides, even optical illumination parts are wherein to the further even light of light source, display chip generates picture under the real-time control of control module, and the picture generating goes out picture to display through projection lens projects again;
Described electric power driving module provides driving electric energy for described light supply apparatus and display chip.
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| CN104049445B (en) * | 2013-03-11 | 2016-12-28 | 深圳市绎立锐光科技开发有限公司 | Light-emitting device and optical projection system |
| JP6236811B2 (en) | 2013-03-14 | 2017-11-29 | 株式会社リコー | Light source unit, illumination device, and image projection device |
| JP6349784B2 (en) | 2013-03-14 | 2018-07-04 | 株式会社リコー | Light source unit, illumination device, and image projection device |
| CN104111532B (en) * | 2013-04-20 | 2017-08-29 | 深圳市绎立锐光科技开发有限公司 | Light-emitting device and relevant source system |
| TWI493275B (en) * | 2013-04-20 | 2015-07-21 | Appotronics China Corp | A lighting device and a projection system |
| CN103279005B (en) * | 2013-05-13 | 2015-08-19 | 深圳市绎立锐光科技开发有限公司 | LASER Light Source, wavelength convert light source, conjunction radiant and optical projection system |
| TWI655492B (en) * | 2016-01-27 | 2019-04-01 | 揚明光學股份有限公司 | Illumination system and projection apparatus having the same |
| CN106545757A (en) * | 2016-12-06 | 2017-03-29 | 武汉通畅汽车电子照明有限公司 | The full LASER Light Source modules of RGB and its optical path adjusting method |
| JP6852455B2 (en) * | 2017-02-23 | 2021-03-31 | オムロン株式会社 | Optical measuring device |
| CN109634036B (en) * | 2017-10-09 | 2022-02-18 | 中强光电股份有限公司 | Projection device and illumination system thereof |
| CN110361913A (en) * | 2018-04-10 | 2019-10-22 | 鸿富锦精密工业(武汉)有限公司 | Laser diode module and laser projection system |
| JP7236642B2 (en) * | 2019-02-05 | 2023-03-10 | パナソニックＩｐマネジメント株式会社 | Light source device and projection type image display device |
| CN112230500B (en) * | 2019-07-15 | 2021-10-08 | 青岛海信激光显示股份有限公司 | Laser projection system and light source device |
| CN112711165B (en) * | 2019-10-25 | 2024-10-18 | 青岛海信激光显示股份有限公司 | Laser projection light source and laser projection equipment |
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| JP2000180959A (en) * | 1998-12-10 | 2000-06-30 | Samsung Sdi Co Ltd | Laser video projecting device using optical pumping bulb |
| JP4121477B2 (en) * | 2004-03-31 | 2008-07-23 | 三洋電機株式会社 | Illumination device and projection display device |
| JP2007052226A (en) * | 2005-08-18 | 2007-03-01 | Seiko Epson Corp | Illuminating device and projector |
| JP5024088B2 (en) * | 2008-02-05 | 2012-09-12 | セイコーエプソン株式会社 | Laser light source device, illumination device, image display device, and monitor device |
| EP2273308A4 (en) * | 2008-03-28 | 2014-04-02 | Nec Display Solutions Ltd | Projection image display unit |
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