CN203745788U - Dual laser light source system - Google Patents
Dual laser light source system Download PDFInfo
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- CN203745788U CN203745788U CN201420004893.2U CN201420004893U CN203745788U CN 203745788 U CN203745788 U CN 203745788U CN 201420004893 U CN201420004893 U CN 201420004893U CN 203745788 U CN203745788 U CN 203745788U
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Abstract
The utility model relates to a dual laser light source system. The dual laser light source system comprises a blue LD and a red LD, a beam splitting device, a fluorescent color wheel, a first drive device, a first beam combining device, a second beam combining device, a filter color wheel, a third drive device, a light collection device and a control device. The beam splitting device is used for partially transmitting and partially reflecting blue light and reflecting coloured light that newly generated by the fluorescent color wheel. The fluorescent color wheel can be used to convert the blue light into green light and reflect the green light at least. The first drive device is used to drive the fluorescent color wheel. The first beam combining device is used to combine red light and newly-generated coloured light. The second beam combining device is used to combine the red light, the newly-generated coloured light and the blue light. The third drive device is used to drive the rotation of the filter color wheel. The control device is used to control power switches of the first drive device, the second drive device, the third drive device, the blue LD and the red LD to make the fluorescent color wheel and the filter color wheel keep synchronization so as to generate timing coloured light of a target optical power. Through the above method, the dual laser light source system provided in the utility model can be used to improve the brightness and colour saturation of a picture displayed through projection.
Description
Technical field
The utility model relates to illumination and display technique field, particularly relates to a kind of double laser light source system.
Background technology
Monolithic DLP(Digital Light Processor Digital Light Processor) projector is because needs provide red, green, blue three kinds of colors on an imaging device simultaneously, its image-forming principle is the projected image that produces full color by the colour wheel of a High Rotation Speed, and colour wheel is made up of red, green, blue three color lumps.In prior art, utilize after the colour wheel of the white light of being launched by light source by rotation, redgreenblue in white light can sequence alternate projects DMD(Digtal Micromirror Device digital micro-mirror device) on chip surface, primary reflecting mirror on dmd chip arrives at camera lens, then is projected to screen by camera lens and makes it imaging.But the serviceable life of bulb source is limited, and the purity of carrying out projection display picture brightness and color with it all can only be relative enough at last, can not meet the requirement of high brightness, high colour purity Projection Display, particularly outdoor Projection Display.
For solving the problems of the technologies described above, a kind of double laser light source system that the utility model provides.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of double laser light source system, the region division of different reflectivity by controlling beam-splitter on the travel path of blue LD and later use rotating filtering colour wheel RGB light carried out to timesharing select look, the brightness of projection display picture and the colour purity of light source three primary colours can be improved, and then the display quality of projected picture can be improved.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of double laser light source system is provided, comprises:
Blue LD and red LD;
Light-dividing device, is arranged at going out on light path of blue LD, for part transmissive portion reflect blue, and for the new coloured light producing of reflected fluorescent light colour wheel;
Double mirror group, the blue light reflecting for reflection beam splitting device is to the second Multiplexing apparatus;
Fluorescence colour wheel, be arranged on the downstream travel path of blue light of light-dividing device transmission, at least comprise along its central shaft be fan annular spread and nonoverlapping be green glow the first wavelength transition zone for converting blue light, and for the new coloured light producing of reflected fluorescent light colour wheel to light-dividing device;
The first drive unit, for driving fluorescence colour wheel to rotate along its central shaft;
The first Multiplexing apparatus, is arranged on the downstream travel path of ruddiness of red LD outgoing, and the coloured light of the new generation of reflecting through light-dividing device incides on the first Multiplexing apparatus, and ruddiness and the new coloured light producing of fluorescence colour wheel are merged into a road light by described the first Multiplexing apparatus;
The second Multiplexing apparatus, be arranged at coloured light that the first Multiplexing apparatus merges downstream travel path on, the coloured light after merging for transmit blue, reflection the first Multiplexing apparatus and then ruddiness, new coloured light and the blue light producing are merged into a road light;
Optical filtering colour wheel, be arranged on the heterogeneous light travel path of the second Multiplexing apparatus output, described optical filtering colour wheel comprises at least three regions that are fan annular along its central shaft, and first area is for only passing through blue light, second area is for only by ruddiness, and the 3rd region is for only passing through green glow;
The 3rd drive unit, for driving optical filtering colour wheel rotate and keep synchronizeing with fluorescence colour wheel along its central shaft;
Control device, for controlling the power switch of the first drive unit, the second drive unit, the 3rd drive unit and blue LD and red LD, makes fluorescence colour wheel and optical filtering colour wheel keep synchronous, to produce each sequential coloured light of target light power;
Light collecting device, for collecting the sequential light through the transmission of optical filtering colour wheel;
Wherein, described light-dividing device comprises beam-splitter and the second drive unit, described beam-splitter comprises at least 3 regions, and the reflectivity of the reflectivity difference of the zones of different in described at least 3 regions to blue light, the coloured light to the new generation of fluorescence colour wheel is identical, and described the second drive unit makes under the irradiation of different regions in blue light hot spot for driving beam-splitter to move.
Wherein, at least 3 regions that described beam-splitter comprises are all fan annular the composition ring-type concentric with the central shaft of beam-splitter.
Wherein, described beam-splitter comprises 6 regions.
Wherein, described beam-splitter is rectangular, and described at least 3 regions are the rectangle being arranged mutually parallel successively, described the second drive unit is used for driving beam-splitter translation, makes not the included different rectangular areas of beam-splitter in the same time be distributed on the travel path of blue light.
Wherein, described beam-splitter comprises 6 regions.
Wherein, described fluorescence colour wheel further comprise at least comprise along iridescent wheel arbor be fan annular spread be gold-tinted second wave length transition zone for converting blue light, at least three regions of optical filtering colour wheel further comprise the 4th region, and described the 4th region is for only allowing gold-tinted to pass through.
Wherein, described fluorescence colour wheel further comprise along fluorescence colour wheel central shaft be fan annular spread be green light three-wavelength transition zone for converting blue light, at least three regions of optical filtering colour wheel further comprise the 5th region, and described the 5th region is for only allowing green light to pass through.
Wherein, be provided with a diffusion sheet on the travel path of described blue light, described diffusion sheet is for carrying out even light and eliminating blue light speckle to blue light.
Wherein, described diffusion sheet is arranged between blue LD and light-dividing device on blue light travel path, or be arranged between light-dividing device and the first catoptron on blue light travel path, or be arranged between the first catoptron and the second catoptron on blue light travel path, or be arranged between the second catoptron and the second Multiplexing apparatus on blue light travel path.
Wherein, between described the second Multiplexing apparatus and optical filtering colour wheel, be provided with optoisolator.
Description according to above-mentioned any one to double laser light source system, between described blue LD and light-dividing device, be disposed with the first plano-convex lens and the first collimating mirror, and the convex surface of the first plano-convex lens is towards blue LD, the first collimating mirror is for collimating to the emergent light of the first plano-convex lens, between light-dividing device and double mirror group, be provided with the convex surface of the second plano-convex lens and the second plano-convex lens towards double mirror group, the convex surface that is provided with the 3rd plano-convex lens and the 3rd plano-convex lens between included two catoptrons of double mirror group is towards second catoptron, the convex surface that is provided with Siping City's convex lens and Siping City's convex lens between light-dividing device and fluorescence colour wheel is towards light-dividing device, the convex surface that is provided with the 5th plano-convex lens and the 5th plano-convex lens between light-dividing device and the first Multiplexing apparatus is towards the first Multiplexing apparatus, between red LD and the first Multiplexing apparatus, be disposed with the 6th plano-convex lens and the second collimating mirror, and the convex surface of the 6th plano-convex lens is towards red LD, the second collimating mirror is for collimating to the emergent light of the 6th plano-convex lens, after described the second Multiplexing apparatus, be provided with convex lens, described convex lens are for converging the coloured light after the second Multiplexing apparatus merges.
The beneficial effects of the utility model are: the situation that is different from prior art, the double laser light source system that the utility model provides, by control beam-splitter to the region division of blue light different reflectivity on the travel path of blue LD and later use rotating filtering colour wheel polychromatic light carried out to timesharing select look, the color saturation of Projection Display light source and the colour purity of primary lights can be improved, and then the display quality of projected picture can be improved.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of double laser light source system of the present utility model;
Fig. 2 is the structural representation of the first embodiment of beam-splitter in double laser light source system of the present utility model;
Fig. 3 is the structural representation of the second embodiment of beam-splitter in double laser light source system of the present utility model;
Fig. 4 is the structural representation of the first embodiment of the fluorescence colour wheel of double laser light source system of the present utility model;
Fig. 5 is the structural representation of the first embodiment of the optical filtering colour wheel of double laser light source system of the present utility model;
Fig. 6 is the structural representation of the second embodiment of the fluorescence colour wheel of double laser light source system of the present utility model;
Fig. 7 is the structural representation of the second embodiment of the optical filtering colour wheel of double laser light source system of the present utility model;
Fig. 8 is the structural representation of the 3rd embodiment of the fluorescence colour wheel of double laser light source system of the present utility model;
Fig. 9 is the structural representation of the 3rd embodiment of the optical filtering colour wheel of double laser light source system of the present utility model.
Embodiment
Refer to Fig. 1, Fig. 1 is the structural representation of an embodiment of double laser light source system of the present utility model.As shown in Figure 1, the double laser light source system of the present embodiment comprises: blue LD11, red LD12, light-dividing device (comprising beam-splitter 13 and the second drive unit (not shown)), double mirror group (comprising the first catoptron 14 and the second catoptron 15), fluorescence colour wheel 16, the first drive unit (not shown), the first Multiplexing apparatus 17, the second Multiplexing apparatus 18, optical filtering colour wheel 19, the 3rd drive unit 20 and light collecting device 21.
In the present embodiment, light-dividing device is arranged at going out on light path of blue LD11, and light-dividing device is to inciding the blue light part transmissive portion reflection on it, and light-dividing device is reflected into the new coloured light producing of fluorescence colour wheel 16 being mapped on it.Wherein, blue light is incided in double mirror group after light-dividing device reflection.Particularly, first blue light is reflected on the first catoptron 14, is then reflexed on the second Multiplexing apparatus 18 by the second catoptron 15.
In the present embodiment, control device is for controlling the power switch of the first drive unit, the second drive unit, the 3rd drive unit 20 and blue LD11 and red LD12, make fluorescence colour wheel 16 and optical filtering colour wheel 19 keep synchronous, to produce each sequential coloured light of target light power.
In the present embodiment, beam-splitter 13 comprises at least 3 regions, and the reflectivity difference of the zones of different in described at least 3 regions to blue light, identical to the reflectivity of the fluorescence colour wheel 16 new coloured light that produce, the second drive unit is for driving beam-splitter 13 to move to make the different different regions of moment can be under the irradiation of blue light hot spot.
In a preferred embodiment of the present utility model, at least 3 regions that beam-splitter 13 comprises are all fan annular the composition ring-type concentric with the central shaft of beam-splitter 13.In embodiment of the present utility model, beam-splitter comprises that 6 are fan annular the composition ring-type concentric with the central shaft of beam-splitter 13, refers to particularly Fig. 2, and Fig. 2 is the structural representation of the first embodiment of beam-splitter in double laser light source system of the present utility model.Certainly in other embodiment of the present utility model, beam-splitter 13 can comprise the fan annular region of other numbers; certainly beam-splitter 13 also can comprise the multiple border circular areas that at least distribute along the same center of circle; the utility model is not restricted this, all within protection domain of the present utility model.As shown in Figure 2, beam-splitter 13 comprises 6 fan annular regions 131,132,133,134,135 and 136, and the reflectivity difference of each fan ring to blue light.Can preferably be incremented/decremented setting to fan annular region 136 to the reflectivity of blue light from fan annular region 131, but in same fan ring region, the reflectivity of blue light is identical, and different fan rings region is consistent to the reflectivity of the fluorescence colour wheel 16 new coloured light that produce.
In another preferred embodiment of the present utility model, beam-splitter 13 is rectangular, and described at least 3 regions are the rectangle being arranged mutually parallel successively, the second drive unit is used for driving beam-splitter 13 translations, and different 12 sections of included different rectangular areas of beam-splitter 13 are distributed on the travel path of blue light.In the present embodiment preferably described at least 3 regions comprise 6 rectangular areas, refer to particularly Fig. 3, Fig. 3 is the structural representation of the second embodiment of double laser light source system beam-splitter of the present utility model, and certainly in other embodiment of the present utility model, beam-splitter 13 can comprise the rectangular area of other numbers.As shown in Figure 3, beam-splitter 13` comprises 6 rectangular area 131`, 132`, 133`, 134`, 135` and 136`, and the reflectivity difference of each rectangular area to blue light.Can preferably be incremented/decremented setting to rectangular region 136`` to the reflectivity of blue light from rectangular area 131``, but different rectangular areas are consistent to the reflectivity of the fluorescence colour wheel 16 new coloured light that produce.
In other embodiment of the present utility model, beam-splitter 13 can comprise the region of at least 3 other shapes, and the utility model does not limit this.In embodiment of the present utility model, beam-splitter 13 comprises at least 3 regions different to blu-ray reflection rate, object is, utilize the second drive unit to drive beam-splitter 13 motions that zones of different is arranged on the travel path of blue light, and then the adjustable ratio that incides the power of blue light on optical filtering colour wheel 19 and the power of new other coloured light that produce.
In the present embodiment, the blue light of blue LD11 transmitting is incided on fluorescence colour wheel 16 by after light-dividing device transmission.Wherein, fluorescence colour wheel 16 at least comprise along its central shaft be fan annular spread and nonoverlapping be green glow the first wavelength transition zone for converting blue light, and for the coloured light that reflects new generation to light-dividing device; When the material for transformation of wave length on fluorescence colour wheel 16 by blue light illumination then, blue light is reflexed on the first Multiplexing apparatus 17 by light-dividing device then by being converted into the coloured light of other colors and then being reflected on light-dividing device again.And under the driving of the first drive unit, fluorescence colour wheel 16 can rotate around its central shaft.
In the present embodiment, first the ruddiness of red LD12 transmitting incide on the first Multiplexing apparatus 17, then by the first Multiplexing apparatus 17 transmissions, and the coloured light that incides the new generation on the first Multiplexing apparatus 17 is reflected by the first Multiplexing apparatus 17, the first Multiplexing apparatus 17 is merged into a road light by the mode of the coloured light reflection to new generation to ruddiness transmission by ruddiness and the new coloured light producing, and light after the first Multiplexing apparatus 17 closes light incides on the second Multiplexing apparatus 18.The second Multiplexing apparatus 18 by being transmitted into the blue light that is mapped on it, be reflected into and be mapped to the light of other colors on it and merge into a road light, the polychromatic light after the second Multiplexing apparatus 18 merges incides on optical filtering colour wheel 19 then.
Refer to Fig. 4, Fig. 4 is the structural representation at the first embodiment of the fluorescence colour wheel of double laser light source system of the present utility model.As shown in Figure 4, fluorescence colour wheel 16 comprises that being along its central shaft the first wavelength transition zone 161, the first wavelength transition zones 161 of fanning annular spread is green glow for converting blue light.Correspondingly, as shown in Figure 5, Fig. 5 is the structural representation of the first embodiment of the optical filtering colour wheel of double laser light source system of the present utility model to the structure of optical filtering colour wheel 19.As shown in Figure 5, optical filtering colour wheel 19 comprises three regions that are fan annular along its central shaft, and first area 191 is for only allowing blue light to pass through, and second area 192 is for only allowing ruddiness to pass through, and the 3rd region 193 is for only allowing green glow to pass through.The 3rd drive unit 20 is in the process that drives optical filtering colour wheel 19 to rotate along its central shaft, first area 191, second area 192, the 3rd region 193 are arranged alternately on the travel path of RGB light, therefore only have at one time a region to be mapped to by RGB illumination, and only have at one time a kind of light of color by optical filtering colour wheel 19.Be red, green, blue three primary colours sequential light through the light of optical filtering colour wheel 19 outgoing.Red, green, blue three primary colours sequential light enters to inject light collecting device 21 and incides on dmd chip after the even light of light collecting device 21.
Refer to Fig. 6 and Fig. 7, Fig. 6 is the structural representation of the second embodiment of the fluorescence colour wheel of double laser light source system of the present utility model, and Fig. 7 is the structural representation of the second embodiment of the optical filtering colour wheel of double laser light source system of the present utility model.As shown in Figure 6, fluorescence colour wheel 16` comprises along its central shaft and is the first wavelength transition zone 161` and the second wave length transition zone 162` that fan annular spread, the first wavelength transition zone 161` is green glow for converting blue light, and second wave length transition zone 162` is gold-tinted for converting blue light.Correspondingly, as shown in Figure 7, optical filtering colour wheel 19` comprises four regions that are fan annular along its central shaft, first area 191` is for only allowing blue light to pass through, second area 192` is for only allowing ruddiness to pass through, the 3rd region 193` is for only allowing green glow to pass through, and the 4th region 194` is for only allowing gold-tinted to pass through.The 3rd drive unit 20 is in the process that drives optical filtering colour wheel 19` to rotate along its central shaft, first area 191`, second area 192`, the 3rd region 193` and the 3rd region 194` are arranged alternately on the travel path of RGB gold-tinted, therefore only have at one time a region to be mapped to by red, green, blue and yellow illumination, and only have at one time a kind of light transmission optical filtering colour wheel 19` of color.Be red, green, blue, yellow four primary colours sequential light through the light of optical filtering colour wheel 19` transmission.Red, green, blue, yellow three primary colours sequential light enter to inject light collecting device 21 and incide on dmd chip after the even light of light collecting device 21.
Refer to Fig. 8 and Fig. 9, Fig. 8 is the structural representation of the 3rd embodiment of the fluorescence colour wheel of double laser light source system of the present utility model, and Fig. 9 is the structural representation of the 3rd embodiment of the optical filtering colour wheel of double laser light source system of the present utility model.As shown in Figure 8, fluorescence colour wheel 16`` comprises along its central shaft and is the first wavelength transition zone 161``, the second wave length transition zone 162`` and the three-wavelength transition zone 162`` that fan annular spread, the first wavelength transition zone 161`` is green glow for converting blue light, second wave length transition zone 162`` is gold-tinted for converting blue light, and three-wavelength transition zone 162`` is green light and reflects green light for converting blue light.Correspondingly, as shown in Figure 9, optical filtering colour wheel 19`` comprises five regions that are fan annular along its central shaft, first area 191`` is for only allowing blue light to pass through, second area 192`` is for only allowing ruddiness to pass through, the 3rd region 193`` is for only allowing green glow to pass through, and the 4th region 194`` is for only allowing gold-tinted to pass through, and the 5th region 195`` is for only allowing green light to pass through.The 3rd drive unit 20 is in the process that drives optical filtering colour wheel 19`` to rotate along its central shaft, first area 191``, second area 192``, the 3rd region 193``, the 4th region 194`` and the 5th region 195`` are arranged alternately on the travel path of red, green, blue and yellow green light, therefore only have at one time a region to be mapped to by red, green, blue and yellow illumination, and only have at one time a kind of light transmission optical filtering colour wheel 19`` of color.Be red, green, blue, Huang, blue or green five primary colours sequential light through the light of optical filtering colour wheel 19`` transmission.Red, green, blue, Huang, blue or green three primary colours sequential light enter to inject light collecting device 21 and incide on dmd chip after the even light of light collecting device 21.
In embodiment of the present utility model, fluorescence colour wheel 16 and optical filtering colour wheel 19 keep synchronous, while making certain filter area be arranged on the travel path of coloured light of the second Multiplexing apparatus outgoing, this filter area can narrow and then obtain purer coloured light the wavelength coverage of the coloured light of corresponding color with it.
In a preferred embodiment of the present utility model, on the travel path of blue light, be provided with a diffusion sheet, this diffusion sheet is for carrying out even light and eliminating blue light speckle to blue light.Preferably, diffusion sheet is arranged between blue LD11 and light-dividing device on blue light travel path, or be arranged between light-dividing device and the first catoptron on blue light travel path, or be arranged between the first catoptron 14 and the second catoptron 15 on blue light travel path, or be arranged between the second catoptron 15 and the second Multiplexing apparatus 18 on blue light travel path.
In practical application of the present utility model, in order to isolate the impact of reflected light on light source, on the path that can advance at blue light and/or ruddiness, isolator is set, preferably between optical filtering colour wheel 19 and the second Multiplexing apparatus 18, optoisolator is once set.
Description according to above-mentioned any one to double laser light source system of the present utility model, preferred in actual use:
Between blue LD11 and light-dividing device, set gradually the first plano-convex lens 22 and the first collimating mirror 23, and the convex surface of the first plano-convex lens 22 is towards blue LD11, the first collimating mirror 23 is for collimating to the emergent light of the first plano-convex lens 22;
The convex surface that between light-dividing device and double mirror group, the second plano-convex lens 24 and the second plano-convex lens 24 is set is towards double mirror group;
The convex surface that between included two catoptrons 14,15 of double mirror group, the 3rd plano-convex lens 25 and the 3rd plano-convex lens 25 is set is towards second catoptron 15;
The convex surface that between light-dividing device and fluorescence colour wheel 16, Siping City's convex lens 26 and Siping City's convex lens 26 is set is towards light-dividing device;
The convex surface of the 5th plano-convex lens 27 and the 5th plano-convex lens 27 is set between light-dividing device and the first Multiplexing apparatus 17 towards the first Multiplexing apparatus 17;
Between red LD12 and the first Multiplexing apparatus 17, set gradually the 6th plano-convex lens 28 and the second collimating mirror 29, and the convex surface of the 6th plano-convex lens 28 is towards red LD12, the second collimating mirror 29 is for collimating to the emergent light of the 6th plano-convex lens 28;
After the second Multiplexing apparatus 18, be provided with convex lens 30, convex lens 30 are for converging the polychromatic light after the second Multiplexing apparatus 18 merges.
By the way, the double laser light source system that the utility model provides, the region division of different reflectivity by controlling beam-splitter on the travel path of blue LD and later use rotating filtering colour wheel polychromatic light carried out to timesharing select look, the brightness of projection display picture and the colour purity of light source three primary colours can be improved, and then the display quality of projected picture can be improved.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (11)
1. a double laser light source system, is characterized in that, described double laser light source system comprises:
Blue LD and red LD;
Light-dividing device, is arranged at going out on light path of blue LD, for part transmissive portion reflect blue, and for the new coloured light producing of reflected fluorescent light colour wheel;
Double mirror group, the blue light reflecting for reflection beam splitting device is to the second Multiplexing apparatus;
Fluorescence colour wheel, be arranged on the downstream travel path of blue light of light-dividing device transmission, at least comprise along its central shaft be fan annular spread and nonoverlapping be green glow the first wavelength transition zone for converting blue light, and for the new coloured light producing of reflected fluorescent light colour wheel to light-dividing device;
The first drive unit, for driving fluorescence colour wheel to rotate along its central shaft;
The first Multiplexing apparatus, is arranged on the downstream travel path of ruddiness of red LD outgoing, and the coloured light of the new generation of reflecting through light-dividing device incides on the first Multiplexing apparatus, and described the first Multiplexing apparatus merges one by ruddiness and the new coloured light light path producing of fluorescence colour wheel;
The second Multiplexing apparatus, be arranged at coloured light that the first Multiplexing apparatus merges downstream travel path on, the coloured light after merging for transmit blue, reflection the first Multiplexing apparatus and then ruddiness, the new coloured light producing and blue light paths are merged;
Optical filtering colour wheel, is arranged on the heterogeneous light travel path of the second Multiplexing apparatus output, and described optical filtering colour wheel comprises at least three regions that are fan annular along its central shaft, and first area is only by blue light, and second area is only by ruddiness, and green glow is only passed through in the 3rd region;
The 3rd drive unit, for driving optical filtering colour wheel rotate and keep synchronizeing with fluorescence colour wheel along its central shaft;
Control device, for controlling the power switch of the first drive unit, the second drive unit, the 3rd drive unit and blue LD and red LD, makes fluorescence colour wheel and optical filtering colour wheel keep synchronous, to produce each sequential coloured light of target light power;
Light collecting device, for collecting the sequential light through the transmission of optical filtering colour wheel;
Wherein, described light-dividing device comprises beam-splitter and the second drive unit, described beam-splitter comprises at least 3 regions, and the reflectivity of the reflectivity difference of the zones of different in described at least 3 regions to blue light, the coloured light to the new generation of fluorescence colour wheel is identical, and described the second drive unit makes under the irradiation of different regions in blue light for driving beam-splitter to move.
2. double laser light source system according to claim 1, is characterized in that, described at least 3 regions that described beam-splitter comprises are all fan annular the composition ring-type concentric with the central shaft of beam-splitter.
3. double laser light source system according to claim 2, is characterized in that, described beam-splitter comprises 6 regions.
4. double laser light source system according to claim 1, it is characterized in that, described beam-splitter is rectangular, and described at least 3 regions are the rectangle being arranged mutually parallel successively, described the second drive unit is used for driving beam-splitter translation, makes not the included different rectangular areas of beam-splitter in the same time be distributed on the travel path of blue light.
5. double laser light source system according to claim 4, is characterized in that, described beam-splitter comprises 6 regions.
6. double laser light source system according to claim 1, it is characterized in that, described fluorescence colour wheel further comprise along iridescent wheel arbor be fan annular spread be gold-tinted second wave length transition zone for converting blue light, at least three regions of optical filtering colour wheel further comprise the 4th region, and described the 4th region is for only allowing gold-tinted to pass through.
7. double laser light source system according to claim 6, it is characterized in that, described fluorescence colour wheel further comprise along fluorescence colour wheel central shaft be fan annular spread be green light three-wavelength transition zone for converting blue light, at least three regions of optical filtering colour wheel further comprise the 5th region, and described the 5th region is for only allowing green light to pass through.
8. double laser light source system according to claim 1, is characterized in that, is provided with a diffusion sheet on the travel path of described blue light, and described diffusion sheet is for carrying out even light and eliminating blue light speckle to blue light.
9. double laser light source system according to claim 8, it is characterized in that, described diffusion sheet is arranged between blue LD and light-dividing device on blue light travel path, or be arranged between light-dividing device and the first catoptron on blue light travel path, or be arranged between the first catoptron and the second catoptron on blue light travel path, or be arranged between the second catoptron and the second Multiplexing apparatus on blue light travel path.
10. double laser light source system according to claim 1, is characterized in that, between described the second Multiplexing apparatus and optical filtering colour wheel, is provided with optoisolator.
11. according to the double laser light source system described in claim 1-10 any one, it is characterized in that, between described blue LD and light-dividing device, be disposed with the first plano-convex lens and the first collimating mirror, and the convex surface of the first plano-convex lens is towards blue LD, the first collimating mirror is for collimating to the emergent light of the first plano-convex lens, between light-dividing device and double mirror group, be provided with the convex surface of the second plano-convex lens and the second plano-convex lens towards double mirror group, the convex surface that is provided with the 3rd plano-convex lens and the 3rd plano-convex lens between included two catoptrons of double mirror group is towards second catoptron, the convex surface that is provided with Siping City's convex lens and Siping City's convex lens between light-dividing device and fluorescence colour wheel is towards light-dividing device, the convex surface that is provided with the 5th plano-convex lens and the 5th plano-convex lens between light-dividing device and the first Multiplexing apparatus is towards the first Multiplexing apparatus, between red LD and the first Multiplexing apparatus, be disposed with the 6th plano-convex lens and the second collimating mirror, and the convex surface of the 6th plano-convex lens is towards red LD, the second collimating mirror is for collimating to the emergent light of the 6th plano-convex lens, after described the second Multiplexing apparatus, be provided with convex lens, described convex lens are for converging the coloured light after the second Multiplexing apparatus light path merges.
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| CN201420004893.2U CN203745788U (en) | 2014-01-03 | 2014-01-03 | Dual laser light source system |
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| CN201420004893.2U CN203745788U (en) | 2014-01-03 | 2014-01-03 | Dual laser light source system |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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Owner name: SHENZHEN YISIDA TECHNOLOGY GROUP CO., LTD. Free format text: FORMER NAME: SHENZHEN ESTA DISPLAY TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 518000 Shenzhen, Nanshan District, China Hi Tech in the world, the world's 806 digital building, room three Patentee after: SHENZHEN ESTAR DISPLAYTECH CO., LTD. Address before: 518000, District, Shenzhen, Nanshan District high tech Zone, Southern District, B1 digital technology park, building 2, C Patentee before: Shenzhen Esta Display Technology Co., Ltd. |
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