CN209946624U - Projection lighting system utilizing laser induced fluorescence - Google Patents
Projection lighting system utilizing laser induced fluorescence Download PDFInfo
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- CN209946624U CN209946624U CN201920601226.5U CN201920601226U CN209946624U CN 209946624 U CN209946624 U CN 209946624U CN 201920601226 U CN201920601226 U CN 201920601226U CN 209946624 U CN209946624 U CN 209946624U
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Abstract
The utility model discloses a projection lighting system using laser to induce fluorescence, which comprises a transmission type fluorescent powder wheel scheme or a reflection type fluorescent powder wheel scheme; the transmission type fluorescent powder wheel scheme comprises a plurality of LPM modules, a transmission type fluorescent powder wheel, a reflecting cup and a reflecting mirror; the scheme of the reflective fluorescent powder wheel comprises a plurality of LPM modules, a transmissive fluorescent powder wheel, a reflecting cup, a dichroic mirror and a blue laser module. The system is based on the use of the rotary fluorescent powder wheel, the laser powder sheet excites fluorescence in multiple points, the heat dissipation capacity can be further improved when the brightness is increased, and the problem of heat accumulation of the fluorescent powder sheet in the high-brightness fluorescent technology is solved.
Description
Technical Field
The utility model belongs to the controllable lighting technology of projection technique among the photoelectric display trade especially relates to an utilize projection lighting system of laser induced fluorescence.
Background
In the fluorescent technology of fixing the fluorescent powder, in order to improve the conversion efficiency, a mode of converging strong light at one point to irradiate the fluorescent powder sheet is often adopted, but the problem that the conversion efficiency is attenuated and even damaged due to heat accumulation of the fluorescent powder sheet can occur. In the fluorescent technology of the rotating fluorescent powder, namely the fluorescent powder wheel technology, strong light instantly irradiates the fluorescent powder and then is cooled for a certain time, and the rotating fluorescent powder wheel drives air to flow to increase the cooling effect.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides an utilize projection lighting system of laser induction fluorescence, this system is on the basis that uses rotatory phosphor powder wheel, and the fluorescence is aroused to laser powder piece multiple spot, also can further promote the heat-sinking capability during the increase luminance, solves the fluorescent powder piece amasss hot problem of hi-lite fluorescence technique.
The utility model discloses a structure be: a projection illumination system using laser induced fluorescence comprises a transmission type phosphor wheel scheme or a reflection type phosphor wheel scheme; the transmission-type fluorescent powder wheel scheme comprises a plurality of LPM modules, a transmission-type fluorescent powder wheel, a reflecting cup and a reflector, wherein the LPM modules do not interfere with each other, the axis of the LPM modules is parallel to the axis of the reflecting cup, the LPM modules are arranged on the effective section of the reflecting cup, the convergence points of the LPM modules are arranged on the effective section of the fluorescent powder wheel, the reflecting surface of the reflecting cup and the reflector is an axisymmetric free curved surface, the reflecting surface of the reflecting cup is a concave surface, the reflecting cup and the reflector are arranged on the same axis, and the reflecting surfaces are opposite to each other, so that a reflector combination with a convergence effect, which can change collimated light beams into convergent light beams, is formed; the reflective fluorescent powder wheel and the reflecting cup are arranged on the same axis, and the reflective fluorescent powder wheel, the blue laser module, the dichroic mirror and the reflecting cup are sequentially arranged; the reflection-type fluorescent powder wheel scheme comprises a plurality of LPM modules, a transmission-type fluorescent powder wheel, a reflecting cup, a dichroic mirror and a blue laser module, wherein the LPM modules do not interfere with each other, the LPM modules are arranged on the effective section of the reflecting cup, the convergence points of the LPM modules are arranged on the effective section of the fluorescent powder wheel, the reflecting cup and the dichroic mirror are axially symmetrical free curved surfaces, the reflecting surface of the reflecting cup is a concave surface, the reflecting cup and the dichroic mirror are on the same axis, the reflecting surfaces are opposite, a reflecting mirror combination with a convergence effect and capable of changing collimated light beams into convergent light beams is formed, the reflection-type fluorescent powder wheel and the reflecting cup are on the same axis, and the reflection-type fluorescent powder wheel, the blue laser module, the dichroic mirror and the reflecting cup are sequentially arranged.
Preferably, the LPM module of the transmissive phosphor wheel scheme is composed of 1 or more blue lasers, a focusing lens and a lens group, and when blue laser light emitted from the blue laser light is converged on a phosphor sheet on the phosphor wheel through the focusing lens, fluorescence of a special color is excited, and the fluorescence forms a collimated light beam through the lens group.
As another preferred example, the LPM module of the reflective phosphor wheel scheme is composed of 1 or a plurality of blue lasers, a dichroic filter and a lens assembly, wherein the dichroic filter is a planar transparent material, and a dichroic film with a surface coated with a light-splitting film for reflecting blue light, transmitting red light and transmitting green light; the blue laser optical axis and the lens group optical axis are respectively at 45 degrees with the color separation sheet and are in mirror image directions, wherein blue laser emitted by the blue laser is a collimated light beam, is reflected by the color separation sheet and is converged by the lens group to the fluorescent powder sheet on the fluorescent powder wheel, fluorescence with special color is excited, and the fluorescence forms a collimated light beam through the lens group.
Furthermore, the transmission-type phosphor wheel scheme or the reflection-type phosphor wheel scheme further comprises a color filter wheel, and when the light beam is not a time sequence light beam with proper proportion of red, green and blue, the color filter wheel is required to be used.
Furthermore, the transmission-type fluorescent powder wheel comprises a fluorescent powder sheet and a scattering sheet which form a 360-degree circular ring according to a certain angle.
Furthermore, the reflective fluorescent powder wheel is a 360-degree circular ring formed by fluorescent powder sheets.
Furthermore, the center of the reflection cup of the transmission-type fluorescent powder wheel scheme is hollow, and the contraction light beam can pass through the reflection cup.
Furthermore, the center of a reflecting cup of the scheme of the reflective fluorescent powder wheel is hollow, a contracted light beam can pass through the reflecting cup, and the dichroic mirror is plated with a light splitting film which can transmit blue light, reflected red light and green light.
Furthermore, the surface of the color filter color wheel of the transmission type fluorescent powder wheel scheme can be plated with film layers comprising a red light reflecting, green light transmitting and blue light transmitting splitting film, a red light reflecting, green light reflecting and blue light transmitting splitting film, a red light reflecting, green light transmitting and blue light transmitting splitting film, a red light transmitting, green light reflecting and blue light transmitting splitting film and an anti-reflection film, wherein the film layers form a 360-degree circular ring according to a certain angle proportion.
Furthermore, the surface of the color filter color wheel of the reflection type fluorescent powder wheel scheme can be plated with film layers comprising a red light reflecting, green light transmitting and blue light transmitting splitting film, a red light reflecting, green light reflecting and blue light transmitting splitting film, a red light reflecting, green light transmitting and blue light transmitting splitting film, a red light transmitting, green light transmitting and blue light transmitting splitting film and a red light transmitting, green light reflecting and blue light transmitting splitting film, wherein each film layer and the scattering sheet form a 360-degree circular ring according to a certain angle proportion.
Furthermore, the blue laser module of the reflective phosphor wheel scheme comprises a blue laser and a focusing lens, wherein the blue laser emitted by the blue laser passes through the focusing lens to shrink a light beam, passes through a dichroic mirror, and passes through a color filtering wheel of the reflective phosphor wheel scheme to form incoherent light.
The utility model has the advantages that:
1. the utility model discloses on the basis of using rotatory phosphor powder wheel, laser powder piece multiple spot arouses fluorescence, also can further promote the heat-sinking capability when increasing luminance, solves the fluorescent powder piece accumulated heat problem of hi-lite fluorescence technique;
2. the utility model discloses utilize light refraction and reflection principle, obtain initial structure through mathematical calculation, recycle the optimal design that software simulation verified, obtain a projection lighting system that the structure is accurate, luminance is high, life is high.
Drawings
FIG. 1 is a schematic diagram of a transmission-type phosphor wheel according to the present invention;
FIG. 2 is a schematic structural diagram of a reflective phosphor wheel according to the present invention;
fig. 3 is a schematic diagram of the arrangement of the LPM module of the present invention.
Detailed Description
The embodiments of the present invention will be further explained with reference to the accompanying drawings.
Example 1: from figure 1 the utility model discloses a structure that adopts is: a projection lighting system using laser to induce fluorescence comprises a transmission-type fluorescent powder wheel scheme, wherein the transmission-type fluorescent powder wheel scheme comprises a plurality of LPM modules 1, a transmission-type fluorescent powder wheel 2, a reflecting cup 3 and a reflector 4, the LPM modules do not interfere with each other, the axes of the LPM modules are parallel to the axis of the reflecting cup, the LPM modules are arranged on the effective section of the reflecting cup, the convergent points of the LPM modules are arranged on the effective section of the fluorescent powder wheel, the reflecting surface of the reflecting cup and the reflecting mirror is an axisymmetric free curved surface, the reflecting surface of the reflecting cup is a concave surface, the reflecting cup and the reflecting mirror are on the same axis, the reflecting surfaces are opposite, a reflecting mirror combination with a converging effect and capable of changing collimated light beams into contracted light beams is formed, the transmission type fluorescent powder wheel, and the transmission type fluorescent powder wheel, the reflector and the reflecting cup are sequentially arranged on the same axis.
The LPM module of transmission-type phosphor powder wheel scheme comprises 1 or several blue laser 1.1, focusing lens 1.2 and lens group 1.3, and when the blue laser that blue laser sent passes through focusing lens and assembles the phosphor powder piece on the phosphor powder wheel, the fluorescence of special colour is aroused, and fluorescence forms collimated light through the lens group.
The transmission-type fluorescent powder wheel comprises a 360-degree circular ring formed by a fluorescent powder sheet 2.1 and a scattering sheet 2.2 according to a certain angle. The center of the light reflecting cup is hollowed out, and the contraction light beam can penetrate through the light reflecting cup. When the light beam is not a time sequence light beam with a proper proportion of red, green and blue, the color filtering color wheel of the transmission type fluorescent powder wheel scheme needs to use a color filtering color wheel 5. The color filter wheel of the transmission type fluorescent powder wheel scheme has the advantages that the surface can be plated with film layers which comprise light splitting films for reflecting red light, transmitting green light and transmitting blue light, light splitting films for reflecting red light, reflecting green light and transmitting blue light, light splitting films for reflecting red light, transmitting green light and transmitting blue light, light splitting films for transmitting red light, transmitting green light and transmitting blue light and an anti-reflection film, and the film layers form a 360-degree circular ring according to a certain angle proportion.
After the arrangement, the focusing lens is designed by software, and the aim is to make the convergent point as small as possible, improve the conversion efficiency and the light-emitting area for exciting fluorescence. And designing a lens group by using software, wherein the aim is to enable the fluorescence to be emitted in a collimation manner. And then designing a combination of a reflecting cup and a reflecting mirror to change the collimated light beams of the LPM modules into a contracted light beam. And finally, designing the color filter angle ratio of the color filter wheel according to the light source ratio of the LPM modules to form an illumination light source for projection.
Example 2: from fig. 2 the utility model discloses a structure is: a projection lighting system using laser to induce fluorescence comprises a reflection type fluorescent powder wheel scheme, wherein the reflection type fluorescent powder wheel scheme comprises a plurality of LPM modules 1, a reflection type fluorescent powder wheel 6, a reflecting cup 3, a dichroic mirror 7 and a blue laser module 8, the LPM modules do not interfere with each other, the LPM modules are arranged on the effective section of the reflecting cup, the convergence points of the LPM modules are arranged on the effective section of the fluorescent powder wheel, the reflecting surface of the reflecting cup and the dichroic mirror is an axisymmetric free-form surface, the reflecting surface of the reflecting cup is a concave surface, the reflecting cup and the dichroic mirror are on the same axis, the reflecting surfaces are opposite, a reflecting mirror combination with a converging effect and capable of changing collimated light beams into contracted light beams is formed, the reflective fluorescent powder wheel, and the reflective fluorescent powder wheel, the blue laser module, the dichroic mirror and the reflective cup are sequentially arranged on the same axis.
The LPM module of the reflection type fluorescent powder wheel scheme is composed of 1 or a plurality of blue lasers 1.1, a color separation sheet 1.4 and a lens group 1.3, wherein the color separation sheet is made of a plane transparent material, and the surface of the color separation sheet is plated with a light splitting film for reflecting blue light, transmitting red light and transmitting green light; the blue laser optical axis and the lens group optical axis are respectively at 45 degrees with the color separation sheet and are in mirror image directions, wherein blue laser emitted by the blue laser is a collimated light beam, is reflected by the color separation sheet and is converged by the lens group to the fluorescent powder sheet on the fluorescent powder wheel, fluorescence with special color is excited, and the fluorescence forms a collimated light beam through the lens group. The reflective fluorescent powder wheel is a 360-degree circular ring formed by fluorescent powder sheets. The center of the reflection cup of the reflection type fluorescent powder wheel scheme is hollow, the contraction light beam can pass through the reflection cup, and the dichroic mirror is plated with a light splitting film which can transmit blue light, reflected red light and green light.
When the light beam is not a time sequence light beam with proper proportion of red, green and blue, the reflective fluorescent powder wheel scheme also comprises a color filtering wheel 5. The color filter wheel of the reflection type fluorescent powder wheel scheme has the advantages that the surface can be plated with film layers comprising light splitting films for reflecting red light, transmitting green light and transmitting blue light, light splitting films for reflecting red light, reflecting green light and transmitting blue light, light splitting films for reflecting red light, transmitting green light and transmitting blue light, light splitting films for transmitting red light, transmitting green light and transmitting blue light and light splitting films for transmitting red light, reflecting green light and transmitting blue light, wherein each film layer and the scattering sheet form a 360-degree circular ring according to a certain angle proportion.
The blue laser module of reflective phosphor powder wheel scheme, including blue laser instrument 8.1 and focusing lens 8.2, the blue laser that blue laser instrument sent passes through focusing lens and contracts the light beam, sees through the dichroic mirror, forms incoherent light through the colour filtering colour wheel of reflective phosphor powder wheel scheme.
The reflective fluorescent powder wheel is a 360-degree circular ring formed by fluorescent powder sheets.
The center of the light reflecting cup is hollowed out, and the contraction light beam can penetrate through the light reflecting cup.
After the arrangement, the lens group is designed by software, and the aim is to make the convergent point as small as possible, improve the conversion efficiency and the light-emitting area for exciting fluorescence. The fluorescence passes through the lens group again and is collimated and emitted. And the combination of the reflecting cup and the dichroic mirror is designed, so that the collimated light beams of the LPM modules are changed into contracted light beams. Then, a focusing lens is designed so that the blue laser focusing position coincides with the focusing position of the combination of the reflection cup and the dichroic mirror. And finally, designing the ratio of the angles of the color filters of the color filter wheel according to the light source proportion of the plurality of LPM modules and the incoherent blue laser to form an illumination light source for projection.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (11)
1. A projection illumination system using laser induced fluorescence, characterized by: the method comprises a transmission type fluorescent powder wheel scheme or a reflection type fluorescent powder wheel scheme; the transmission-type fluorescent powder wheel scheme comprises a plurality of LPM modules, a transmission-type fluorescent powder wheel, a reflecting cup and a reflecting mirror, wherein the LPM modules do not interfere with each other, the axes of the LPM modules are parallel to the axis of the reflecting cup, the LPM modules are arranged on the effective section of the reflecting cup, the convergence points of the LPM modules are arranged on the effective section of the fluorescent powder wheel, the reflecting surface of the reflecting cup and the reflecting mirror is an axisymmetric free curved surface, the reflecting surface of the reflecting cup is a concave surface, the reflecting cup and the reflecting mirror are on the same axis, the reflecting surfaces are opposite, a reflecting mirror combination with a convergence effect and capable of changing collimated light beams into convergent light beams is formed, the transmission-type fluorescent powder wheel and the reflecting cup are on the same axis, and the transmission-type fluorescent powder wheel, the reflecting mirror and the reflecting cup are sequentially arranged; the reflection-type fluorescent powder wheel scheme comprises a plurality of LPM modules, a transmission-type fluorescent powder wheel, a reflecting cup, a dichroic mirror and a blue laser module, wherein the LPM modules do not interfere with each other, the LPM modules are arranged on the effective section of the reflecting cup, the convergence points of the LPM modules are arranged on the effective section of the fluorescent powder wheel, the reflecting cup and the dichroic mirror are axially symmetrical free curved surfaces, the reflecting surface of the reflecting cup is a concave surface, the reflecting cup and the dichroic mirror are on the same axis, the reflecting surfaces are opposite, a reflecting mirror combination with a convergence effect and capable of changing collimated light beams into convergent light beams is formed, the reflection-type fluorescent powder wheel and the reflecting cup are on the same axis, and the reflection-type fluorescent powder wheel, the blue laser module, the dichroic mirror and the reflecting cup are sequentially arranged.
2. The projection lighting system using laser induced fluorescence as claimed in claim 1, wherein the LPM module of the transmissive phosphor wheel scheme is composed of 1 or more blue lasers, a focusing lens and a lens assembly, and when the blue laser emitted from the blue laser is converged on the phosphor sheet on the phosphor wheel through the focusing lens, the phosphor of a specific color is excited, and the phosphor forms a collimated light beam through the lens assembly.
3. The illumination system as claimed in claim 1, wherein the LPM module of the reflective phosphor wheel scheme comprises 1 or more blue lasers, a dichroic filter and a lens assembly, the dichroic filter is a planar transparent material with a dichroic film coated on its surface for reflecting blue light, transmitting red light and transmitting green light; the blue laser optical axis and the lens group optical axis are respectively at 45 degrees with the color separation sheet and are in mirror image directions, wherein blue laser emitted by the blue laser is a collimated light beam, is reflected by the color separation sheet and is converged by the lens group to the fluorescent powder sheet on the fluorescent powder wheel, fluorescence with special color is excited, and the fluorescence forms a collimated light beam through the lens group.
4. The projection illumination system of claim 1, wherein the transmissive phosphor wheel scheme or the reflective phosphor wheel scheme further comprises a color filter wheel.
5. The projection illumination system of claim 1, wherein the transmissive phosphor wheel comprises a 360 degree ring of phosphor flakes and diffuser flakes at an angle.
6. The system of claim 1, wherein the reflective phosphor wheel is a 360 degree circle formed by phosphor flakes.
7. The projection illumination system of claim 1, wherein the reflector cup of the transmissive phosphor wheel scheme is hollow and the converging light beam can pass through.
8. The projection illumination system of claim 1, wherein the reflective cup of the reflective phosphor wheel scheme is hollow and the contracted light beam can pass through, and the dichroic mirror is coated with a dichroic film that transmits blue, red, and green light.
9. The projection lighting system of claim 4, wherein the color filter wheel of the transmissive phosphor wheel scheme has a surface coated with a layer including a red light reflecting, green light transmitting, and blue light transmitting splitting film, a red light reflecting, green light reflecting, and blue light transmitting splitting film, a red light reflecting, green light transmitting, and blue light reflecting splitting film, a red light transmitting, green light reflecting, and blue light transmitting splitting film, a red light transmitting, green light transmitting, and blue light transmitting splitting film, a red light transmitting, green light reflecting, and blue light transmitting splitting film, and an anti-reflection film, and the layer forms a 360-degree circle according to a certain angular ratio.
10. The projection lighting system of claim 4, wherein the color filter wheel of the reflective phosphor wheel scheme has a surface coated with a layer including a red light reflecting, green light transmitting, and blue light transmitting splitting film, a red light reflecting, green light reflecting, and blue light transmitting splitting film, a red light reflecting, green light transmitting, and blue light reflecting splitting film, a red light transmitting, green light reflecting, and blue light transmitting splitting film, a red light transmitting, green light transmitting, and blue light transmitting splitting film, and a red light transmitting, green light reflecting, and blue light transmitting splitting film, wherein each layer and the diffuser plate form a 360-degree circle according to a certain angle ratio.
11. The projection lighting system of claim 1, wherein the blue laser module of the reflective phosphor wheel scheme comprises a blue laser and a focusing lens, and the blue laser emitted from the blue laser passes through the focusing lens to shrink a beam, passes through the dichroic mirror, and passes through the color filter wheel of the reflective phosphor wheel scheme to form incoherent light.
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| CN201920601226.5U CN209946624U (en) | 2019-04-29 | 2019-04-29 | Projection lighting system utilizing laser induced fluorescence |
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| CN201920601226.5U CN209946624U (en) | 2019-04-29 | 2019-04-29 | Projection lighting system utilizing laser induced fluorescence |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110032034A (en) * | 2019-04-29 | 2019-07-19 | 杭州有人光电技术有限公司 | A kind of projecting illumination system using laser induced fluorescence |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110032034A (en) * | 2019-04-29 | 2019-07-19 | 杭州有人光电技术有限公司 | A kind of projecting illumination system using laser induced fluorescence |
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