CN205644002U - Illuminator and relevant projecting system and lighting system - Google Patents
Illuminator and relevant projecting system and lighting system Download PDFInfo
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- CN205644002U CN205644002U CN201620281132.0U CN201620281132U CN205644002U CN 205644002 U CN205644002 U CN 205644002U CN 201620281132 U CN201620281132 U CN 201620281132U CN 205644002 U CN205644002 U CN 205644002U
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Abstract
The embodiment of the utility model discloses illuminator and relevant projecting system and lighting system, this illuminator includes: first light source for the first light of outgoing, the secondary light source for outgoing second light, at least one is the exciting light first light and second light, beam splitting device for receive the light that closes of first light and second light, and according to different transmission reflection proportions, guide first light and second light from first light path and the outgoing of second light path, a wavelength converters for receive from the first light and second light of first light path outgoing, and the at least partial wavelength of light converts the first laser that receives into most likely, the scattering device for the first light that to follow the outgoing of second light path and second light scattering are the scattered light, this scattered light with first receive laser together the outgoing for illuminator's emergent light. The embodiment of the utility model provides an in, illuminator has the colour of emergent light or the advantage that the colour temperature can change.
Description
Technical field
This utility model relates to illumination and Display Technique field, particularly relates to a kind of light-emitting device and relevant projecting system and illuminator.
Background technology
At present, LASER Excited Fluorescence powder is widely used to illumination and Display Technique field with the technology of ejecting white light.
Fig. 1 is the structural representation of typical white light emitting device in prior art.As it is shown in figure 1, light-emitting device includes laser instrument 101, collimating lens 102, reflecting mirror 103, optical filter 104, collecting lens 105, Wavelength converter 106.Laser instrument 101 is blue-light semiconductor laser particle, after exciting light collimated lens 102 collimation of semiconductor laser 101 output, becomes the directional light that light beam is less.Directional light is successively reflected mirror 103 and optical filter 104 reflects, then assembles through collecting lens 105, incides on Wavelength converter 106.Wavelength converter 106 is yellow fluorescence bisque, and it absorbs incident blue excitation light and is partially converted to yellow Stimulated Light outgoing, and the blue light do not changed and the gold-tinted being excited to produce are mixed to form white light output.White light forms the directional light of angle pencil of ray after collecting lens 105 collimates, due to optical filter 104 transmission Stimulated Light reflected excitation light, so some blue light can be kept off, but owing to its size is much smaller than the beam diameter of collecting lens outgoing directional light, so the blue light of the Stimulated Light of collecting lens outgoing and the overwhelming majority still can export, thus final light-emitting device can obtain white light output.
But, owing to the optical system of once light-emitting device determines, finally in output white light, the ratio of exciting light and Stimulated Light also determines that, colour temperature and color cannot change again.Although adjusting the concentration of fluorescent material in Wavelength converter 106, the white light of different colour temperatures can be obtained, but owing to phosphor concentration is difficult to accurately control, process consistency is also difficult to ensure.
Summary of the invention
This utility model is mainly solving the technical problems that provide the light-emitting device and relevant projecting system and illuminator that a kind of color can change.
This utility model embodiment provides a kind of light-emitting device, and the first light source, for outgoing the first light；Secondary light source, for outgoing the second light, the first light and the second light, at least one is exciting light；Light-dividing device, for receiving the first light and the conjunction light of the second light, and in different Transflective ratios, guides the first light and the second light from the first light path and the second light path outgoing；First wave length conversion equipment, for receiving the first light from the first light path outgoing and the second light, and is the first Stimulated Light by least part of wavelength convert of this light；Scattering device, for being scattered light from the first light and second light scattering of the second light path outgoing, the outgoing together with the first Stimulated Light of this scattered light is the emergent light of light-emitting device.
Preferably, first wave length conversion equipment is additionally operable to reflect its emergent light to light-dividing device, and scattering device is additionally operable to specular scattering light to light-dividing device, and it is the emergent light of light-emitting device that light-dividing device is additionally operable to this emergent light with scattering actinic light outgoing.
Preferably, in the second smooth two-way light that the first light sent at the first light source and secondary light source send, light-dividing device at least guides a road light from the ratio of the second light path outgoing more than 0 and less than 0.5.
Preferably, the first light and the second light that light-dividing device receives is respectively P polarization light and S-polarization light, and light-dividing device has different Transflective ratios to P polarization light from S-polarization light.
Preferably, light-emitting device also includes polarizing Multiplexing apparatus, and for the first light and second light of the first light source with secondary light source outgoing respectively are combined into light beam, and outgoing is to light-dividing device.
Preferably, this light-emitting device also includes the 3rd light source of outgoing the 3rd light, the 3rd light and the first light, the second actinic light incident light-dividing device, and light-dividing device is additionally operable to guide the 3rd light to first wave length conversion equipment and/or scattering device.
Preferably, scattering device includes material for transformation of wave length, and it is Stimulated Light that this material for transformation of wave length is used for the first light and/or the second light wavelength conversion.
Preferably, light-emitting device also includes drive circuit, for regulation the first light source and the driving curtage of at least one light source in secondary light source.
This utility model embodiment also provides for a kind of optical projection system, and this optical projection system includes above-mentioned light-emitting device.
This utility model embodiment also provides for a kind of illuminator, and this illuminator includes above-mentioned light-emitting device.
Compared with prior art, this utility model includes following beneficial effect:
In this utility model embodiment, light-dividing device is partially reflective to the first light and the equal fractional transmission of the second light, owing to light-dividing device is different to the Transflective ratio of the first light, the second light, therefore, can be by changing the luminous power of the emergent light of the first light source and/or secondary light source, change the first Stimulated Light and the ratio of scattered light in the light-dividing device emergent light ratio from the first light path and the second light path, and then regulation light-emitting device emergent light, thus change color or the colour temperature of emergent light.
Accompanying drawing explanation
The structural representation of typical white light emitting device in Fig. 1 prior art；
Fig. 2 a is the structural representation of an embodiment of light-emitting device in this utility model embodiment；
Fig. 2 b is the light-dividing device optical filtering curve of spectrum schematic diagram to incident P polarization light with S-polarization light；
Fig. 2 c is the light-dividing device optical filtering curve of spectrum schematic diagram to incident different wavelengths of light；
Fig. 3 is the structural representation of another embodiment of light-emitting device in this utility model embodiment；
Fig. 4 a is the structural representation of another embodiment of light-emitting device in this utility model embodiment；
Fig. 4 b is the structural representation of Fig. 4 a illustrated embodiment neutralizing light device 409b；
Fig. 5 is the structural representation of another embodiment of light-emitting device in this utility model embodiment.
Detailed description of the invention
For the sake of quoting and understanding, being described as follows of the technical term hereafter and used in accompanying drawing:
Material for transformation of wave length: material for transformation of wave length can use phosphorescent material, such as phosphor, it would however also be possible to employ nano material, such as quantum dot, it is also possible to use fluorescent material.
Exciting light: can excitation wavelength transition material so that material for transformation of wave length produces the light of different wavelengths of light.
Stimulated Light: the light that material for transformation of wave length stimulated luminescence excites and produces.
Exciting light, material for transformation of wave length, Stimulated Light are relative concepts.Such as, blue light excites yellow fluorescent powder to produce gold-tinted, and now blue light is exciting light, and gold-tinted is Stimulated Light.And gold-tinted excitated red fluorescent powder produces HONGGUANG, now gold-tinted is exciting light, and HONGGUANG is Stimulated Light.
With embodiment, this utility model embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment one
Refer to the structural representation that Fig. 2 a, Fig. 2 a is an embodiment of light-emitting device in this utility model embodiment.As shown in Figure 2 a, light-emitting device 200 includes the first light source 201, secondary light source 202, light-dividing device 203, first wave length conversion equipment 204, scattering device 205.
First light source 201 is for outgoing the first light, and secondary light source 202 is for outgoing the second light, and the first light and the second light are exciting light (being such as blue light).Light-dividing device 203 is for receiving the first light and the conjunction light of the second light, and in different Transflective ratios, guides the first light and the second light from the first light path and the second light path outgoing.Such as, the first smooth transmission 20% is reflected 80% by light-dividing device, and the second smooth transmission 10% is reflected 90%.First wave length conversion equipment 204 is for receiving from the first light of the first light path outgoing and the second light, and is the first Stimulated Light gold-tinted of generation (the such as yellow fluorescent powder be excited) by this first light and the second light wavelength conversion.Scattering device 205 is used for be scattered light from the first light and second light scattering of the second light path outgoing.Further, first wave length conversion equipment 204 is additionally operable to reflect its first Stimulated Light produced to light-dividing device 203, and scattering device 205 is additionally operable to reflect its scattered light produced to light-dividing device 203；Light-dividing device 203 is additionally operable to this first Stimulated Light of transmission this scattered light of reflecting part, by this first Stimulated Light and scattering actinic light emergent light (in figure, band arrow is shown in solid) that outgoing is light-emitting device.
In this utility model embodiment, light-dividing device is partially reflective to the first light and the equal fractional transmission of the second light, owing to light-dividing device is different to the Transflective ratio of the first light, the second light, therefore, can be by changing the luminous power (by the way of such as by the driving curtage of change light source) of the emergent light of the first light source and/or secondary light source, change the light-dividing device emergent light ratio from the first light path and the second light path, and then regulate the first Stimulated Light and the ratio of scattered light in light-emitting device emergent light, thus change color or the colour temperature of emergent light.
Make a concrete analysis of as follows: assume that the luminous power of the first light and the second light is respectively p and q, light-dividing device 203 is a to the absorbance of the first light, reflectance is 1-a, light-dividing device is b to the absorbance of the second light, reflectance is 1-b, and light-dividing device 203 is x from the first light of the first light path outgoing and the luminous power of the second light, and light-dividing device 203 is y from the first light of the second light path outgoing and the luminous power of the second light, then x=p (1-a)+q (1-b), y=pa+qb.Owing to light-dividing device is different to the Transflective ratio of the first light, the second light, i.e. a ≠ b, so changing p and/or q, the first Stimulated Light and the ratio of scattered light in y/x, and then regulation light-emitting device emergent light can be changed, thus change color or the colour temperature of emergent light.Further, by the way of regulation drives electric current or driving voltage, color or colour temperature, not only fast and easy are regulated, and more accurate.
In the present embodiment, first light source 201 is the blue laser that wavelength is identical with secondary light source 202, and laser instrument 201 and 202 is positioned orthogonally with respect to each, the first light is P polarization light relative to the plane of incidence of light-dividing device 203, and the second light is S-polarization light relative to the plane of incidence of light-dividing device 203.Light-emitting device also includes two collimating lens 206 being arranged side by side, and the exciting light of two blue lasers output becomes collimating directional light, and two hot spots side by side and in close proximity to and be combined into a large spot, output is to light-dividing device 203.
In the present embodiment, light-dividing device 203 realizes fractional transmission and reflection to incident P polarization light, and incident S-polarization light also realizes fractional transmission and reflection, but different to the Transflective ratio of both polarized light.Such as, referring to Fig. 2 b, Fig. 2 b is the light-dividing device optical filtering curve of spectrum schematic diagram to incident P polarization light with S-polarization light.In Fig. 2 b, abscissa is wavelength, and vertical coordinate is absorbance, and the solid line curve of spectrum is the curve of spectrum to P polarization light, and the dotted line curve of spectrum is the curve of spectrum to S-polarization light.It can be seen that be about 30% at the blue light of 440nm-460nm, light-dividing device to the absorbance of incident P polarization light for wave-length coverage from Fig. 2 b, reflectance is about 70%, and the absorbance to incident S-polarization light is about 10%, and reflectance is about 90%.
The reflection light of light-dividing device 203 is directed to the first light path, and incides first wave length conversion equipment 204 after collecting lens group 207 is assembled.First wave length conversion equipment 204 is specially yellow fluorescent powder, and the blue laser from the first light path is converted into yellow Stimulated Light, and this yellow Stimulated Light is reflected by first wave length conversion equipment 204 and through collecting lens group 207 to light-dividing device 203.The transmission light of light-dividing device 203 is directed to the second light path, and incides on scattering device 205 after collecting lens group 208 is assembled.Incident blue laser is scattered by scattering device 205, and this scattered light is scattered device 205 and reflects and through collecting lens group 208 to light-dividing device 203.It is understood that lens 206, battery of lens 207 and battery of lens 208 can also use other light collecting device to substitute.
The yellow Stimulated Light of light-dividing device 203 transmission first wave length conversion equipment 204 output, the part blueness scattered light of reflective scattering device 205 output, this blueness scattered light and yellow Stimulated Light are mixed into beam of white light, outgoing is the emergent light of light-emitting device.Can be by the driving electric current of at least one laser instrument in drive circuit two blue lasers of regulation, regulate p-polarization light and the luminous power of s polarized light of the outgoing respectively of two laser instrument, thus regulate the light-dividing device outgoing blue light ratio from the first light path and the second light path, and then regulate yellow Stimulated Light and the ratio of blue scattered light in light-emitting device emergent light, thus change color or the colour temperature of ejecting white light.In this specific embodiment, utilize the light-dividing device can separate natural quality to the plated film curve of p-polarization light and s polarized light, realize the light-dividing device different Transflective ratio to the first light and the second light, thus not only by regulating p-polarization light and the luminous power of s polarized light of the outgoing respectively of two laser instrument, finally change color or the colour temperature of emergent light, but also avoid the strict control to light-dividing device coating process.
Part exciting light is guided to scattering device by light-dividing device from the second light path, and this part exciting light proportion is the least, and that is scattered, and can to return the ratio of light source when device is reflected back light-dividing device the least, otherwise the biggest.Therefore, the loss that light source causes is returned in order to reduce scattered light, preferably, in the second smooth two-way light that the first light sent at the first light source and secondary light source send, light-dividing device at least guides a road light from the ratio of the second light path outgoing more than 0 and less than 0.5, i.e. light-dividing device guides the first light to account for the ratio of the first light more than 0 and less than 0.5 from the light of the second light path outgoing；Or/and, described light-dividing device guides the second light to account for the ratio of the second light more than 0 and less than 0.5 from the light of the second light path outgoing.Such as, in the present embodiment, light-dividing device 203 more than 0 and is less than 50% to the absorbance of incident P polarization light, and also greater than 0 and the absorbance of incident S-polarization light is less than 50%.
In the present embodiment, light-dividing device 203 specifically uses polarization spectro, in other embodiments, it would however also be possible to employ wavelength light splitting.Specifically, the first light source 201 is identical with the polarization characteristic of the first light that secondary light source 202 exports and the second light, but wavelength is different；Now light-dividing device 203 has different Transflective ratios to the exciting light of these two kinds of different wave lengths.Such as, referring to Fig. 2 c, Fig. 2 c is the light-dividing device optical filtering curve of spectrum schematic diagram to incident different wavelengths of light.In Fig. 2 c, abscissa is wavelength, and vertical coordinate is absorbance.It can be seen that light-dividing device is different from the absorbance of the light of wavelength b2 to wavelength b1 from Fig. 2 c.Now, again may be by the driving electric current of drive circuit two laser instrument of regulation, regulate the ratio of the exciting light of the first light path and the second light path after light-dividing device 203 light splitting, and then regulation finally exports color or the colour temperature of light.In this specific embodiment, different to the transmitance/reflectivity Characteristics of different wavelengths of light by design light-dividing device, realize the light-dividing device different Transflective ratio to the first light and the second light, thus not only by the luminous power of two laser instrument of regulation, two kinds of wavelength light of outgoing respectively, finally change color or the colour temperature of emergent light, but also avoid the strict control to light-dividing device coating process.
When light-dividing device 203 uses wavelength light splitting, the first light source 201 can also use LED with secondary light source 202.Certainly, when light-dividing device 203 uses polarization spectro, the first light source 201 can also use LED with secondary light source 202, but owing to LED emergent light is non-polarized light, therefore polaroid need to be set before light-dividing device, for the non-polarized light of two LED outgoing respectively becomes P polarization light and S-polarization light.
In the present embodiment, first wave length conversion equipment is reflective, can include reflective and the wavelength conversion sheet (such as yellow fluorescent powder sheet) arranged on reflective substrates, and the Stimulated Light that wavelength conversion sheet produces is reflexed to battery of lens by reflective.In the present embodiment, material for transformation of wave length absorbs all exciting lights, can also only absorb part exciting light in other embodiments, now first wave length conversion equipment is by its emergent light, i.e. first Stimulated Light reflexes to light-dividing device, light-dividing device transmission the first Stimulated Light and this exciting light do not changed of part with the mixed light of the exciting light do not changed.
In the present embodiment, concrete employing the first light and the second light are blue light, and blue scattered light is mixed into the example of white light to illustrate how this utility model changes emergent light color with yellow Stimulated Light.In other embodiments, it would however also be possible to employ the example of other color.Such as, the first light and the second light are green light, and cyan scattered light is mixed into white light with red Stimulated Light；Or, the first light and the second light are blue light, and blue excitation light is mixed into purple light with red Stimulated Light；Or, the first light and the second light are respectively blue light and green light, and blue cyan scattered light is mixed into white light etc., as long as the first light and the second light can excite first wave length conversion equipment to produce the first Stimulated Light with yellow Stimulated Light.
But the most not limiting the first light and the second light is exciting light, the first light and the second light can also only one of which be exciting lights, now Wavelength converter absorbs exciting light therein, and is scattered another light.Such as first light and the second light are respectively blue light and HONGGUANG, blue light is together with HONGGUANG after incident yellow fluorescent powder, yellow fluorescent powder absorbs some blue light and produces gold-tinted, and is scattered HONGGUANG, therefore the HONGGUANG after yellow fluorescent powder outgoing gold-tinted, unabsorbed blue light and scattering.
Additionally, in other embodiments, Wavelength converter can use LED to be arranged in the light-emitting area of LED in modes such as coating or pad pastings as substrate, material for transformation of wave length (such as fluorescent material).Such as, when use blue led is as the substrate of Wavelength converter, the one side of material for transformation of wave length is excited by the laser from the first lens, and another side is excited by this blue led, i.e. material for transformation of wave length is two-sided is excited simultaneously, thus can improve the emergent light brightness of light-emitting device.For another example, when use red LED is as the substrate of Wavelength converter, although material for transformation of wave length will not be excited by this red LED, but outgoing together with the Stimulated Light that the HONGGUANG of red LED outgoing can produce with material for transformation of wave length, thus the energy of red-light spectrum is increased for light-emitting device, compensate for the defect that the red energy of Stimulated Light is not enough；Now light-dividing device is preferably the light splitting optical filter of reflected excitation light and transmission Stimulated Light and HONGGUANG.
Complicated owing to arranging the technics comparing of material for transformation of wave length on LED, therefore to make up the defect of the red energy deficiency of Stimulated Light, light-emitting device can also include the 3rd light source of outgoing the 3rd light, 3rd light and the first light, the second actinic light incident light-dividing device, light-dividing device is additionally operable to guide the 3rd light to Wavelength converter and/or scattering device so that Wavelength converter and/or scattering device can also outgoing the 3rd light.3rd light source can be red laser or green laser, thus increases red-light spectrum or the energy of green spectrum for light-emitting device.3rd light source can also be infrared laser, can be so the energy of light-emitting device increase infrared spectrum, in order to user can find this light-emitting device by infrared detector at night.
Additionally, scattering device 205 is in addition to including scattering material, a small amount of material for transformation of wave length can also be included, after first light and the second light are incident to scattering device 205, this material for transformation of wave length is for being Stimulated Light by the first light and/or the second light wavelength conversion, so that light-emitting device can this Stimulated Light of outgoing.Such as there is a small amount of red fluorescence powder on scattering device, can be the energy of light-emitting device increase red-light spectrum.
In other embodiments, first wave length conversion equipment 204 can exchange with the position of scattering device 205, i.e. the reflection light of light-dividing device is incident to scattering device, and the transmission light of light-dividing device is incident to first wave length conversion equipment；And the Stimulated Light that light-dividing device reflection first wave length conversion equipment produces, and the some scattered light of transmission scattering device outgoing.
Further, in other embodiments, scattering device 205 can also be substituted by another kind of Wavelength converter (referred to herein as second wave length conversion equipment).Now, the outgoing together with the second Stimulated Light of second wave length conversion equipment outgoing of the first Stimulated Light of first wave length conversion equipment 204 outgoing is the emergent light of light-emitting device.Such as, specifically can use the first light and the second light is blue light, first wave length conversion equipment and second wave length conversion equipment include red fluorescence powder and green emitting phosphor respectively, the gold-tinted that light-emitting device outgoing is mixed with green Stimulated Light by red Stimulated Light, or outgoing is by red Stimulated Light and green Stimulated Light and the white light of blue light do not changed by Wavelength converter.Again may be by the driving electric current of drive circuit two light sources of regulation herein, regulate the ratio of the exciting light of the first light path and the second light path after light-dividing device 203 light splitting, and then regulate the first Stimulated Light and the ratio of the second Stimulated Light in light-emitting device emergent light, thus change color or the colour temperature of emergent light.
Embodiment two
Referring to Fig. 3, Fig. 3 is the structural representation of another embodiment of light-emitting device in this utility model embodiment.As it is shown on figure 3, light-emitting device 300 includes the first light source 301, secondary light source 302, light-dividing device 303, first wave length conversion equipment 304, scattering device 305, lens 306, battery of lens 307 and battery of lens 308.
The present embodiment includes with the difference of Fig. 2 a illustrated embodiment:
The present embodiment also includes reflecting mirror 309a and polarization Multiplexing apparatus 309b, and polarization Multiplexing apparatus has the attribute of transmitting P-type polarisation luminous reflectance S-polarization light.The P polarization light of laser instrument 301 outgoing is reflected mirror 309a and reflexes to polarize Multiplexing apparatus 309b, the S-polarization light of laser instrument 302 outgoing is incident to polarize Multiplexing apparatus 309b, P polarization light and S-polarization light are combined into light beam by polarization Multiplexing apparatus 309b, and shine on light-dividing device 303.Relative to Fig. 2 a illustrated embodiment, in the present embodiment, before incident light-dividing device 303, by polarization Multiplexing apparatus 309b, the P polarization light of the first light source 301 with secondary light source 302 outgoing respectively is combined into light beam with S-polarization light, and outgoing is to light-dividing device 303, so that emergent light to have hot spot less, the advantage that brightness is higher.
It is understood that in the embodiment using wavelength light splitting, it is also possible to before incident light-dividing device 303, first the light of the first light source 301 with secondary light source 302 outgoing is combined into light beam by wavelength Multiplexing apparatus, and outgoing is to light-dividing device.Now the first light and the second light are respectively provided with different first wave length and second wave length, and Multiplexing apparatus 309 is the wavelength Multiplexing apparatus of transmission first wave length reflection second wave length.
In the present embodiment, Multiplexing apparatus 309b closes light by transmission the first luminous reflectance the second light；In other embodiments, Multiplexing apparatus 309b can also close light by transmission the second luminous reflectance the first light.It addition, reflecting mirror 309a is dispensed with, now the first light of the first light source 301 outgoing the most incident Multiplexing apparatus 309a after lens 306.
Embodiment three
Referring to Fig. 4 a with Fig. 4 b, Fig. 4 a is the structural representation of another embodiment of light-emitting device in this utility model embodiment, and Fig. 4 b is the structural representation of Fig. 4 a illustrated embodiment neutralizing light device 409b.As shown in fig. 4 a, light-emitting device 400 includes the first light source 401, secondary light source 402, light-dividing device 403, first wave length conversion equipment 404, scattering device 405, lens 406, battery of lens 407, battery of lens 408, reflecting mirror 409a, Multiplexing apparatus 409b.
The present embodiment is with the difference of embodiment illustrated in fig. 3:
Secondary light source 402 is LED, and its emergent light is lambertian distribution.As shown in Fig. 4 a and Fig. 4 b, Multiplexing apparatus 409 is the reflecting mirror including through hole 419b, first light transmission through hole 419b of laser instrument 401 outgoing, second light of LED402 outgoing is reflected by the region beyond the through hole 419b of reflecting mirror, thus the first light and the second light are combined into light beam by Multiplexing apparatus 409, and outgoing is to light-dividing device 403.Further, the first light of the first light source outgoing is different from the wavelength of the second light of secondary light source outgoing, and light-dividing device 403 is different to the Transflective ratio of the light of these two kinds of different wave lengths, i.e. carries out wavelength light splitting.
Reason same as the previously described embodiments, owing to light-dividing device 403 is different to the Transflective ratio of the first light, the second light, therefore, it can the luminous power of emergent light by changing the first light source and/or secondary light source, change color or the colour temperature of light-emitting device emergent light.Further, the present embodiment uses reflecting mirror 409b with holes, utilize that laser instrument is different from the etendue amount of LED carries out conjunction light, it is to avoid use wavelength or polarizing filter.
It is understandable that, laser instrument 401 can also exchange with the position of LED402, now Multiplexing apparatus 409b replaces with the clear glass including little reflector plate 419b, the laser light incident of laser emitting is to little reflector plate and is reflected onto light-dividing device 403, and the region beyond the small reflector of the light transmission Multiplexing apparatus of LED outgoing is to light-dividing device.
For ease of summarizing, herein, the reflecting mirror of band through hole is referred to as propagation Multiplexing apparatus with the clear glass with little reflector plate, above-mentioned through hole and small reflector are referred to as the first area of propagation Multiplexing apparatus, region beyond above-mentioned through hole (or small reflector) is referred to as the second area of propagation Multiplexing apparatus, and the area of second area is more than four times of area of first area, first area and second area are respectively used to the light receiving the first light source with secondary light source outgoing.The light of the first light source outgoing is by first area transmission, and the light of secondary light source outgoing is reflected by second area；Or, the light of the first light source outgoing is reflected by first area, and the light of secondary light source outgoing is by second area transmission, thus the light of the first light source and secondary light source outgoing is combined into light beam.
Additionally, corresponding to propagation Multiplexing apparatus, in other embodiments, light-dividing device 403 can be divided into the 3rd region and the 4th region, i.e. include the 3rd region corresponding to first area, first light of propagation Multiplexing apparatus 409 outgoing is incident to the 3rd region, and the second light of propagation Multiplexing apparatus 409 outgoing is incident to the region (the hereinafter referred to as the 4th region) beyond the 3rd region of light-dividing device.Further, the 3rd region is different to the Transflective ratio of the second light from the 4th region to the Transflective ratio of the first light, and the first smooth transmission 20% is reflected 80% by the such as the 3rd region, and the second smooth transmission 10% is reflected 90% by the 4th region.
In like manner, this subregion of light-dividing device is arranged, it is also possible to be applied to Fig. 2 a illustrated embodiment.
Embodiment four
In the various embodiments described above, all illustrate with reflective first wave length conversion equipment and scattering device (or second wave length conversion equipment).It practice, first wave length conversion equipment and scattering device (or second wave length conversion equipment) also can use transmission-type, their subsequent optical path use optical module carry out the first Stimulated Light and scattered light (or second Stimulated Light) closing light.Such as, referring to Fig. 5, Fig. 5 is the structural representation of another embodiment of light-emitting device in this utility model embodiment.
As it is shown in figure 5, light-emitting device 500 includes the first light source 501, secondary light source 502, light-dividing device 503, first wave length conversion equipment 504, scattering device 505, lens 506, battery of lens 507, lens 508a.
The present embodiment includes in place of the difference of Fig. 2 a illustrated embodiment:
The present embodiment also includes lens 508b, reflecting mirror 510, reflecting mirror 511 and optical filter 512, scattering device 505 is transmission-type, lens 508b is for collecting the scattered light of scattering device 505 transmission, this scattered light is reflexed to optical filter 512 by reflecting mirror 510, reflecting mirror 511, optical filter 512 transmission is from the Stimulated Light of light-dividing device 503, and reflection is from the reflection light of reflecting mirror 511, thus Stimulated Light and scattered light are combined into a branch of emergent light.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and between each embodiment, identical similar portion sees mutually.
This utility model embodiment also provides for a kind of optical projection system, and including light-emitting device, this light-emitting device can have the structure in the various embodiments described above and function.This optical projection system can use various shadow casting technique, such as liquid crystal display (LCD, Liquid Crystal Display) shadow casting technique, digital light path processor (DLP, Digital Light Processor) shadow casting technique.Such as, the light-emitting device of above-mentioned ejecting white light can be as the white light source of optical projection system.
This utility model embodiment also provides for a kind of illuminator, and including light-emitting device, this light-emitting device can have the structure in the various embodiments described above and function.Such as, above-mentioned light-emitting device can apply to torch for illumination, auto lamp illumination, stage lighting illumination etc..
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (10)
1. a light-emitting device, it is characterised in that including:
First light source, for outgoing the first light；
Secondary light source, for outgoing the second light, the first light and the second light, at least one is exciting light；
Light-dividing device, for receiving the conjunction light of described first light and the second light, and in different Transflective ratios, guides the first light and the second light from the first light path and the second light path outgoing；
First wave length conversion equipment, for receiving described the first light from the first light path outgoing and the second light, and is the first Stimulated Light by least part of wavelength convert of this light；
Scattering device, for being scattered light by described the first light from the second light path outgoing and the second light scattering, the outgoing together with the first Stimulated Light of this scattered light is the emergent light of described light-emitting device.
Light-emitting device the most according to claim 1, it is characterized in that: described first wave length conversion equipment is additionally operable to reflect its emergent light to described light-dividing device, described scattering device is additionally operable to reflect described scattered light to described light-dividing device, and described light-dividing device is additionally operable to this emergent light and scattering actinic light emergent light that outgoing is described light-emitting device.
Light-emitting device the most according to claim 1, it is characterised in that: in the second smooth two-way light that the first light sent at the first light source and secondary light source send, described light-dividing device at least guides a road light from the ratio of the second light path outgoing more than 0 and less than 0.5.
Light-emitting device the most according to claim 1, it is characterised in that: the first light and the second light that described light-dividing device receives is respectively P polarization light and S-polarization light, and described light-dividing device has different Transflective ratios to P polarization light from S-polarization light.
Light-emitting device the most according to claim 4, it is characterised in that: described light-emitting device also includes polarizing Multiplexing apparatus, and for the first light and second light of the first light source with secondary light source outgoing respectively are combined into light beam, and outgoing is to described light-dividing device.
Light-emitting device the most according to claim 1, it is characterized in that: this light-emitting device also includes the 3rd light source of outgoing the 3rd light, 3rd light and the first light, the second actinic light incident described light-dividing device, described light-dividing device is additionally operable to guide the 3rd light to first wave length conversion equipment and/or described scattering device.
Light-emitting device the most according to claim 1, it is characterised in that: described scattering device includes material for transformation of wave length, and it is Stimulated Light that this material for transformation of wave length is used for the first light and/or the second light wavelength conversion.
Light-emitting device the most according to any one of claim 1 to 7, it is characterised in that: described light-emitting device also includes drive circuit, for regulation the first light source and the driving curtage of at least one light source in secondary light source.
9. an optical projection system, this optical projection system includes the light-emitting device as according to any one of claim 1 to 8.
10. an illuminator, this illuminator includes the light-emitting device as according to any one of claim 1 to 8.
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| CN201620281132.0U CN205644002U (en) | 2016-04-06 | 2016-04-06 | Illuminator and relevant projecting system and lighting system |
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| CN201620281132.0U CN205644002U (en) | 2016-04-06 | 2016-04-06 | Illuminator and relevant projecting system and lighting system |
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| CN205644002U true CN205644002U (en) | 2016-10-12 |
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| CN201620281132.0U Active CN205644002U (en) | 2016-04-06 | 2016-04-06 | Illuminator and relevant projecting system and lighting system |
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