CN104991409B - Light source system and projection device - Google Patents

Light source system and projection device Download PDF

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Publication number
CN104991409B
CN104991409B CN201510408887.2A CN201510408887A CN104991409B CN 104991409 B CN104991409 B CN 104991409B CN 201510408887 A CN201510408887 A CN 201510408887A CN 104991409 B CN104991409 B CN 104991409B
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China
Prior art keywords
light
blue laser
correction
source
chromaticity coordinates
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CN201510408887.2A
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Chinese (zh)
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CN104991409A (en
Inventor
杨毅
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深圳市光峰光电技术有限公司
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Priority to CN201510408887.2A priority Critical patent/CN104991409B/en
Priority to CN201110406365.0A priority patent/CN102645830B/en
Publication of CN104991409A publication Critical patent/CN104991409A/en
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Publication of CN104991409B publication Critical patent/CN104991409B/en

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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings
    • G03B21/2006Lamp housings characterised by the light source
    • G03B21/2033LED or laser light sources
    • G03B21/204LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings
    • G03B21/2006Lamp housings characterised by the light source
    • G03B21/2013Plural light sources
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings
    • G03B21/206Control of light source other than position or intensity
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings
    • G03B21/2066Reflectors in illumination beam

Abstract

The invention discloses a light source system and a projection device. The light source system comprises a blue laser light source, a correction light source and a light combination device. The blue laser light source is used for generating blue laser; the correction light source is used for generating correction light; and the light combination device is used for carrying out light combination on the blue laser and the correction light to enable the chromaticity coordinate of the mixed light of the blue laser and the correction light to be closer to the predetermined blue light chromaticity coordinate compared with the chromaticity coordinate of the blue laser. Through the mode above, the correction light generated by the correction light source and the blue laser generated by the blue laser light source are subjected to the light combination, and the color of the blue laser is corrected to meet the predetermined color requirement, thereby improving visual effect.

Description

Light-source system and projection arrangement

The present invention is application is on December 8th, 2011, Application No. 201110406365.0, invention entitled " light source system The divisional application of the Chinese invention patent application of system and projection arrangement ".

Technical field

The present invention relates to optical field, more particularly to light-source system and projection arrangement.

Background technology

In the light-source system that projection arrangement or the other display equipment of prior art use, generally exciting light sources are produced Raw exciting light is collected and is focused on the colour wheel being provided with least one wavelength-converting region, is turned exciting light by this wavelength-converting region Change the primary lights (for example, RGB primary lights) of display into.In a kind of scheme, blue laser light source is used as exciting light Source, setting red light wavelength switch region, green wavelength switch region and blue light transparent area on colour wheel.With the rotation of colour wheel, color Wheel replaces the sequence of colored lights exporting HONGGUANG, green glow and blue light.Now, the blue laser warp that blue light is produced by blue laser light source Blue light transparent area transmission produces.

However, the peak wavelength of blue laser produced by blue laser light source between 440nm~450nm, it is in cie Chromaticity coordinates on (international commission on illumination, international luminous lighting committee) chromaticity diagram It is about (0.15,0.016), in bluish violet.Specify in international digital television standard rec709, the chromaticity coordinates of blue light is (0.152,0.061), peak wavelength is 462nm.As can be seen here, blue laser produced by blue laser light source is apart from rec709 Standard also has sizable gap, leads to visual effect relatively poor.Further, using blue light produced by blue laser light source Laser equally exists similar problem as the other light sources system of primary lights.

To sum up, it is desirable to provide a kind of light-source system and projection arrangement, to solve the above-mentioned skill of the light-source system of prior art Art problem.

Content of the invention

The invention mainly solves the technical problem of providing a kind of light-source system and projection arrangement, with to blue laser light source The color of the blue laser producing is corrected, and then meets predetermined color requirement, improves visual effect.

For solving above-mentioned technical problem, the technical scheme that the embodiment of the present invention adopts is: a kind of light-source system is provided, Including blue laser light source, calibration light source and Multiplexing apparatus.Blue laser light source is used for producing a blue laser.Calibration light source For producing a correction light.Multiplexing apparatus are used for carrying out closing light to blue laser and correction light, so that blue laser and correction The chromaticity coordinates of the mixed light of light compared to blue laser chromaticity coordinates closer to predetermined blue light chromaticity coordinates.

Wherein, Multiplexing apparatus to correction light carry out Spectral modification, and further by carry out the correction light after Spectral modification with Blue laser carries out closing light.

Wherein, on cie chromaticity diagram, it is located at the color of blue laser with the chromaticity coordinates of the correction light that blue laser carries out closing light The prolongation of two end points lines of span of the chromaticity coordinates to the mixed light according to predetermined blue light chromaticity coordinates setting for the coordinate In closed area defined in line between line, the chromaticity diagram edge of cie chromaticity diagram and two end points.

Wherein, the x-axis coordinate of the chromaticity coordinates of mixed light is more than or equal to 0.14 and is less than or equal to 0.18, the chromaticity coordinates of mixed light Y-axis coordinate be more than or equal to 0.03 and be less than or equal to 0.08.

Wherein, the x-axis coordinate of the chromaticity coordinates of mixed light is more than or equal to 0.155 and less than or equal to 0.165, and y-axis coordinate etc. In 0.06.

Wherein, correction light is one of blue light, blue green light and green glow or two or more combination in any.

Wherein, calibration light source is led.

Wherein, Multiplexing apparatus are light splitting optical filter, one of light splitting filter transmission blue laser and correction light, and instead Penetrate blue laser and correction light in another, and then to blue laser and correction light carry out closing light.

Wherein, Multiplexing apparatus include light splitting optical filter, reflector and light collecting device, and reflector includes opening and arc Reflecting surface, one of blue laser and correction light are to curved reflecting surface and anti-through curved reflecting surface through light splitting filter transmission It is mapped to light collecting device, another in blue laser and correction light incides light splitting optical filter and through light splitting filter from above-mentioned opening Mating plate reflexes to curved reflecting surface, then reflexes to light collecting device through curved reflecting surface, and then blue laser and correction light are entered Row closing light.

Wherein, light splitting optical filter is scattered to blue laser and correction light further.

Wherein, Multiplexing apparatus include light splitting optical filter, reflector, reflecting mirror and light collecting device, and reflector includes out Mouth and curved reflecting surface, one of blue laser and correction light incide reflection from above-mentioned opening after the reflection of light splitting optical filter Mirror, and reflected mirror reflexes to curved reflecting surface, then reflex to light collecting device, blue laser and correction light through curved reflecting surface In another incide reflecting mirror from above-mentioned opening after light splitting filter transmission, and reflected mirror reflexes to arc reflection Face, then reflex to light collecting device through curved reflecting surface, and then closing light is carried out to blue laser and correction light.

Wherein, reflecting mirror is scattered to blue laser and correction light further.

Wherein, light splitting optical filter carries out Spectral modification to correction light and/or blue laser further.

Wherein, light-source system further includes colour wheel, and colour wheel includes transparent area, transparent area transmission and scattering blue laser.

Wherein, light-source system further includes driving means, and colour wheel further includes at least one wavelength-converting region, drives dress Put driving colour wheel, so that transparent area and wavelength-converting region are disposed alternately on the propagation path of blue laser, wavelength-converting region pair Blue laser carries out wavelength convert.

Wherein, calibration light source is according to the intermittent output calibration light of transparent area and wavelength-converting region of colour wheel.

For solving above-mentioned technical problem, the technical scheme that the embodiment of the present invention adopts is: a kind of projection arrangement is provided, This projection arrangement includes any one in above-mentioned light-source system.

The invention has the beneficial effects as follows: be different from prior art, the present invention by correction light that calibration light source is produced with Produced by blue laser light source, blue laser carries out closing light, is corrected with the color to blue laser so as to meet predetermined Color requires, and improves visual effect.

Brief description

Fig. 1 is the structural representation of light-source system first embodiment of the present invention;

Fig. 2 is the spectrum schematic diagram of the light-source system shown in Fig. 1;

Fig. 3 is that the blue laser in the light-source system shown in Fig. 1 carries out closing light with correction light according to different brightness ratios Spectrum schematic diagram;

Fig. 4 a is the correction position view on cie chromaticity diagram for the light in the light-source system shown in Fig. 1;

Fig. 4 b is the close-up schematic view of Fig. 4 a;

Fig. 5 is another spectrum schematic diagram of the light-source system shown in Fig. 1;

Fig. 6 is the structural representation of light-source system second embodiment of the present invention;

Fig. 7 is the structural representation of light-source system 3rd embodiment of the present invention;

Fig. 8 is the structural representation of light-source system fourth embodiment of the present invention;

Fig. 9 is the flow chart of the blue light bearing calibration of light-source system of the present invention.

Specific embodiment

The present invention is described in detail with reference to the accompanying drawings and examples.

Refer to Fig. 1, Fig. 1 is the structural representation of light-source system first embodiment of the present invention.As shown in figure 1, this enforcement The light-source system of example includes blue laser light source 11, calibration light source 12, colour wheel 13, driving means 14 and light splitting optical filter 15.

Blue laser light source 11 produces a blue laser.Calibration light source 12 produces a correction light.As shown in Fig. 2 in this reality Apply in example, the peak wavelength of the blue laser that blue laser light source 11 produces is 445nm, its chromaticity coordinates on cie chromaticity diagram It is about (0.15,0.016), in bluish violet.Calibration light source 12 is a blue green light led, the peak of the correction light that calibration light source 12 produces Value wavelength is 511nm, and its chromaticity coordinates on cie chromaticity diagram is about (0.134,0.619), in aeruginouss.Light splitting optical filter 15 The blue laser producing for a low pass filter, its transmission blue laser light source 11, and the correction that reflection correction light source 12 produces Light, and then closing light is carried out to the two.In the present embodiment, the blue laser that blue laser light source 11 produces is produced with calibration light source 12 Raw correction light incides the same area light splitting optical filter 15 from the both sides of light splitting optical filter 15, and the incident direction of the two Vertical or near vertical.Light splitting optical filter 15 blue laser relatively and correction light are in 45 degree or arrange close to 45 degree, and then make Blue laser through light splitting optical filter 15 transmission can carry out closing light with the correction light through light splitting optical filter 15 reflection.

The blue laser that blue laser light source 11 produces and the correction light of calibration light source 12 generation close through light splitting optical filter 15 The chromaticity coordinates of the mixed light producing after light compared to blue laser chromaticity coordinates closer to predetermined blue light chromaticity coordinates, for example Blue light chromaticity coordinates (0.152,0.061) specified in rec709 standard.In other embodiments, light splitting optical filter 15 can also set It is set to high-pass filter.Now, light splitting optical filter 15 reflects the blue laser that blue laser light source 11 produces, and transmission correction light The correction light that source 12 produces, and then closing light is carried out to the two.

In general, on cie chromaticity diagram, the chromaticity coordinates of mixed light is located at the chromaticity coordinates of blue laser and the color of correction light On line between coordinate, concrete closing light principle is as follows:

If the brightness of blue laser and correction light is respectively l1、l2, chromaticity coordinates respectively (x1, y1)、(x2, y2), then closing light The brightness l of mixed light afterwards and chromaticity coordinates (x, y) are expressed as:

L=l1+l2(1)

x = ( l 1 x 1 y 1 + l 2 x 2 y 2 ) / ( l 1 y 1 + l 2 y 2 ) - - - ( 2 )

y = ( l 1 + l 2 ) / ( l 1 y 1 + l 2 y 2 ) - - - ( 3 )

Therefore, can select close to predetermined blue light color on the chromaticity coordinates of blue laser with the line of the chromaticity coordinates of correction light Some chromaticity coordinates as mixed light of coordinate.Subsequently, and mixed according to known blue laser, correction light by above-mentioned formula Brightness ratio between blue laser that the chromaticity coordinates of closing light can calculate and correction light, so by adjust blue laser and The brightness ratio of correction light is so that the chromaticity coordinates of mixed light is sat closer to predetermined blue light color compared to the chromaticity coordinates of blue laser Mark.

As shown in figure 3, showing in Fig. 3 that blue laser and correction light carry out the mixing after closing light according to different brightness ratios The chromaticity coordinates of light.Wherein, when the spectral intensity correcting light is shown in dotted line, it with the chromaticity coordinates of the mixed light of blue laser is (0.158,0.04), and when correct light spectral intensity as shown by the solid line when, it with the chromaticity coordinates of the mixed light of blue laser is (0.157,0.06), with respect to blue laser chromaticity coordinates (0.15,0.016) closer to blue light color specified in rec709 standard Coordinate (0.152,0.061), therefore, it is possible to meet predetermined color requirement, fully improves visual effect.

In other embodiments, one of blue light, blue green light or green glow or two or more combination in any can be selected As correction light, blue laser is corrected.Calibration light source 12, in addition to using led, can also use LASER Light Source.Typically For, peak wavelength all can be used to as calibration light source 12, the such as green laser of 532nm in the light source of 420nm~560nm Light source.

Specifically, on cie chromaticity diagram, it is located at blue laser with the chromaticity coordinates of the correction light that blue laser carries out closing light Two end points lines of the span of chromaticity coordinates to the mixed light according to predetermined blue light chromaticity coordinates setting for the chromaticity coordinates In closed area defined in line between extended line, the chromaticity diagram edge of cie chromaticity diagram and this two end points.For example, As shown in Fig. 4 a and 4b, in a preferred embodiment, the x-axis coordinate of the chromaticity coordinates of mixed light is more than or equal to 0.14 and is less than or equal to 0.18, the y-axis coordinate of the chromaticity coordinates of mixed light is more than or equal to 0.03 and is less than or equal to 0.08.Now, closed with blue laser The chromaticity coordinates of the correction light of light is located at chromaticity coordinates a0 to the chromaticity coordinates a1 (0.14,0.03) of mixed light and the chromaticity coordinates of blue laser Defined in line between the extended line of line of a2 (0.18,0.03), chromaticity diagram edge and chromaticity coordinates a1 and chromaticity coordinates a2 In closed area.It is highly preferred that the chromaticity coordinates carrying out the correction light of closing light with blue laser is located at the chromaticity coordinates a0 of blue laser To the extended line of the line of the chromaticity coordinates a3 (0.14,0.08) and chromaticity coordinates a4 (0.18,0.08) of mixed light, chromaticity diagram edge with And in closed area defined in line between chromaticity coordinates a3 and chromaticity coordinates a4.

In another preferred embodiment, the x-axis coordinate of the chromaticity coordinates of mixed light is more than or equal to 0.155 and is less than or equal to 0.165, and y-axis coordinate is equal to 0.06.Now, the chromaticity coordinates carrying out the correction light of closing light with blue laser is located at blue laser The extended line of the line to the chromaticity coordinates a5 (0.155,0.06) and chromaticity coordinates a6 (0.165,0.06) of mixed light for the chromaticity coordinates a0, color In closed area defined in line between product figure edge and chromaticity coordinates a6 and chromaticity coordinates a6.

In the above-described embodiments, the chromaticity coordinates a0 of blue laser includes but is not limited to (0.16,0.016).

In the present embodiment, blue laser light source 11 produces blue laser and the correction light warp point of calibration light source 12 generation Light optical filter 15 is further incident upon on colour wheel 13 after carrying out closing light.Colour wheel 13 includes transparent area (not shown).Set on transparent area Be equipped with heat sink material or scattering micro-structural, with transmission and scatter blue laser and correction light, eliminating coherence is carried out to blue laser. Specifically, blue laser can be scattered by scattering particles or scattering micro-structural, it is thus eliminated that original laser Spatial coherence.When colour wheel 13 moves under the driving of driving means 14, because colour wheel 13 is in the scattering propertiess of different time Incomplete same, therefore can eliminate temporal coherence, thus be simultaneously achieved space eliminating coherence and time eliminating coherence.Colour wheel 13 is an example of eliminating coherence device, and other eliminating coherence modes can also use, and here of the present invention is not limited.At other In embodiment, in the case of needing to carry out eliminating coherence to blue laser, can be according to actual needs in the biography of blue laser On defeated path, diverse location (for example between blue laser light source 11 and light splitting optical filter 15) arranges other eliminating coherence devices Eliminating coherence is carried out to blue laser.

In the present embodiment, colour wheel 13 can further include at least one wavelength-converting region (not shown).Driving means 14 driving colour wheels 13, so that transparent area and wavelength-converting region are disposed alternately on blue laser and the propagation path of correction light.Thoroughly Light area transmission blue laser and correction light, wavelength-converting region carries out wavelength convert to blue laser, to produce the base of different colours Coloured light.For example, colour wheel 13 can be arranged red light wavelength switch region and green wavelength switch region, red light wavelength switch region is by blue light Optical maser wavelength is converted into HONGGUANG, and blue laser wavelength convert is become green glow by green wavelength switch region.Therefore, in driving means 14 During driving colour wheel 13, the primary lights sequence of colour wheel 13 periodically output HONGGUANG, green glow and blue light, this primary lights sequence can It is further used for subsequently showing.

In a preferred embodiment, calibration light source 12 is according to the intermittent output calibration of transparent area and wavelength-converting region of colour wheel 13 Light.For example, when calibration light source 12 is green-light source, calibration light source 12 is only arranged at indigo plant in transparent area or red light wavelength switch region Output calibration light when in the transmission path of ray laser and correction light, now, correction light is corrected to blue laser through transparent area, And become HONGGUANG through red light wavelength switch region wavelength convert.Calibration light source 12 is arranged at blue laser and school in green wavelength switch region Close when in the transmission path of positive light or its voltage is only maintained at a below lighting the predetermined voltage of threshold value.Permissible by the way Reduce calibration light source 12 energy consumption.Further, the voltage of calibration light source 12 is maintained at a below lighting the predetermined voltage of threshold value, compared to Closed mode is easily rapidly modulated and the bright state of inlet point.In the other embodiment not using colour wheel 13, blue laser Light source 11 and calibration light source 12 can also be independently controlled according to practical situation.

The correction light that light splitting optical filter 15 can produce to calibration light source 12 further carries out Spectral modification, and will carry out spectrum The blue laser that correction light after modification is produced with blue laser light source 11 carries out closing light.As shown in figure 5, light splitting optical filter 15 is One bandpass filter, the green-yellow light spectral components more than 530nm in its transmission correction light, only reflect remaining spectral components, with Its blue laser producing with blue laser light source 11 is made to carry out closing light.By above-mentioned Spectral modification, can modify mixed further The purity forming and improving mixed light of closing light.In other embodiments, when the correction light that calibration light source 12 produces is unsatisfactory for When stating the requirement to correction light, Spectral modification can be carried out by the correction light that light splitting optical filter 15 produces to calibration light source 12, can So that carrying out the correction light after Spectral modification (carrying out the correction light of closing light with blue laser) to meet above-mentioned requirements, this situation Also within the scope of the present invention.In addition, light splitting optical filter 15 can carry out Spectral modification to blue laser further.

By the way, swashed by the blue light that the correction light producing calibration light source 12 is produced with blue laser light source 11 Light carries out closing light, can the color of blue laser is corrected require so as to meet predetermined color, improves visual effect.Additionally, In this area, existing research staff proposes to correct blue laser by green or yellowish green fluorescent powder, specifically: fluorescent material is inhaled Receiving portions blue laser produces Stimulated Light, and the mixed light of this Stimulated Light and remaining unabsorbed blue laser is as outgoing Light, the chromaticity coordinates of this emergent light is relative to blue laser closer to predetermined blue light chromaticity coordinates.But because fluorescent material can absorb indigo plant The energy of ray laser, therefore, this scheme can reduce the brightness of final emergent light;And in the present invention, calibration light source will not absorb The energy of blue laser, the therefore present invention are it can be avoided that reduce the problem of outgoing brightness.

Refer to Fig. 6, Fig. 6 is the structural representation of light-source system second embodiment of the present invention.As shown in fig. 6, this enforcement The light-source system of example includes blue laser light source 21, calibration light source 22, colour wheel 23, driving means 24 and light splitting optical filter 25. It is in place of the light-source system of the present embodiment and the difference of the light-source system shown in Fig. 1, calibration light source 22 and light splitting optical filter 25 It is arranged at the downstream light path of colour wheel 23, the correction light that calibration light source 22 produces is not directly incident on colour wheel 23, light splitting optical filter The blue laser of 25 correction light and color wheel 23 transmissions producing calibration light source 22 carries out closing light.Preferably, can swash in blue light Between radiant 21 and light splitting optical filter 25, (for example on colour wheel 23), setting eliminating coherence device to carry out eliminating coherence to blue laser.

Refer to Fig. 7, Fig. 7 is the structural representation of light-source system 3rd embodiment of the present invention.As shown in fig. 7, this enforcement The light-source system of example includes blue laser light source 31, calibration light source 32, light splitting optical filter 33, reflector 34 and light collecting device 35.It is in place of the light-source system of the present embodiment and the difference of the light-source system shown in Fig. 1, in the present embodiment, using light splitting Blue laser and calibration light source 32 that optical filter 33, reflector 34 and light collecting device 35 produce to blue laser light source 31 The correction light producing carries out closing light.Specifically, reflector 34 includes opening and curved reflecting surface (sign).Blue laser light Source 31 is arranged at the side away from curved reflecting surface of reflector 34, calibration light source 32, light splitting optical filter 33 and light collecting device The side of the 35 close curved reflecting surfaces being arranged at reflector 34.Light splitting optical filter 33 is arranged at calibration light source 32 and reflector 34 Between.Now, the correction that the opening of the reflected cover 34 of blue laser that blue laser light source 31 produces is produced with calibration light source 32 Light incides light splitting optical filter 33 towards one another from the both sides of light splitting optical filter 33.The correction light warp that calibration light source 32 produces Light splitting optical filter 33 is transmitted to the curved reflecting surface of reflector 34, and reflexes to light collecting device 35 through curved reflecting surface.Blue light The blue laser that LASER Light Source 31 produces reflexes to curved reflecting surface through light splitting optical filter 33, then reflexes to light through curved reflecting surface Collection device 35, and then closing light is carried out to blue laser and correction light.In a preferred embodiment, the direction of light splitting optical filter 33 is anti- The side penetrating cover 34 is provided with scattering material or diffusing structure, is scattered with correcting light and blue laser, with to blue laser Carry out eliminating coherence.

In other embodiments, the position of blue laser light source 31 and calibration light source 32 can exchange.Now, blue laser The blue laser that light source 31 produces is transmitted to the curved reflecting surface of reflector 34 through light splitting optical filter 33, and anti-through curved reflecting surface It is mapped to light collecting device 35.The correction light that calibration light source 32 produces incides light splitting optical filter 33 warp from the opening of reflector 34 Light splitting optical filter 33 reflexes to curved reflecting surface, then reflexes to light collecting device 35 through curved reflecting surface, and then to blue laser Carry out closing light with correction light.

Further, in other embodiment, light splitting optical filter 33 may be provided on colour wheel (not shown).Now, light splitting filter Mating plate 33 may be disposed at the specific region of colour wheel, and other regions of colour wheel is arranged to reflective wavelength-converting region, thus Produce sequence of colored lights, now, with respect to each embodiment of above-mentioned inclusion colour wheel, the present embodiment separately need not increase in the outside of colour wheel Light splitting optical filter, structure is relatively simple.

Refer to Fig. 8, Fig. 8 is the structural representation of light-source system fourth embodiment of the present invention.As shown in figure 8, this enforcement Example light-source system include blue laser light source 41, calibration light source 42, light splitting optical filter 43, reflector 44, reflecting mirror 45 and Light collecting device 46.It is in place of the light-source system of the present embodiment and the difference of the light-source system shown in Fig. 1, in the present embodiment In, the indigo plant that blue laser light source 41 produced using light splitting optical filter 43, reflector 44, reflecting mirror 45 and light collecting device 46 The correction light of ray laser and calibration light source 42 generation carries out closing light.Specifically, reflector 44 includes opening and arc reflection Face (does not indicate).Blue laser light source 41, calibration light source 42 and light splitting optical filter 43 are arranged on the anti-away from arc of reflector 44 Penetrate the side in face, reflecting mirror 45 and light collecting device 46 are positioned close to the side of the close curved reflecting surface of reflector 44.This When, the correction light that calibration light source 42 produces incides reflecting mirror 45 from the opening of reflector 44 after light splitting optical filter 43 reflection, And reflected mirror 45 reflexes to the curved reflecting surface of reflector 44, then reflex to collection device 46 through curved reflecting surface, blue light swashs The blue laser that radiant 41 produces incides reflecting mirror 45 from the opening of reflector 44 after light splitting optical filter 42 transmission, and warp Reflecting mirror 45 reflexes to the curved reflecting surface of reflector 44, then reflexes to light collecting device 46 through curved reflecting surface, and then to indigo plant Ray laser and correction light carry out closing light.In a preferred embodiment, the side of the orienting reflex cover 44 of reflecting mirror 45 is provided with scattering Material or diffusing structure, are scattered with correcting light and blue laser, to carry out eliminating coherence to blue laser.

In other embodiments, the position of blue laser light source 41 and calibration light source 42 can exchange.Now, blue laser The blue laser that light source 41 produces incides reflecting mirror 45 from the opening of reflector 44 after light splitting optical filter 43 reflection, and through anti- Penetrate the curved reflecting surface that mirror 45 reflexes to reflector 44, then reflex to collection device 46 through curved reflecting surface, calibration light source 42 produces Raw correction light incides reflecting mirror 45 from the opening of reflector 44 after light splitting optical filter 43 transmission, and reflected mirror 45 reflects To the curved reflecting surface of reflector 44, then reflex to light collecting device 46 through curved reflecting surface, and then to blue laser and correction Light carries out closing light.

Further, in other embodiment, reflecting mirror 45 may be provided on colour wheel (not shown).Now, reflecting mirror 45 can It is arranged at the specific region of colour wheel, and other regions of colour wheel are arranged to reflective wavelength-converting region, thus produce colored Light sequence.

In embodiment shown in Fig. 6-Fig. 8, light splitting optical filter 25,33 and 43 also can be to correction light and/or blue laser Carry out Spectral modification.

Further in other embodiments, blue laser and correction light can pass through various Multiplexing apparatus well known in the art Carry out closing light, for example, using the optical modulator chip of projection arrangement, closing light is carried out to blue laser and correction light.Now, blue laser Can be alternately produced with correction light.In addition, it is also possible to pass through other filter elements in Multiplexing apparatus in addition to light splitting optical filter (for example, absorption-type optical filter) to carry out Spectral modification to correction light and/or blue laser.

In the above-described embodiments, each light-source system can further include the various optics units well known in the art such as lens Part, will not be described here.

Additionally, the present invention further provides a kind of projection arrangement, this projection arrangement is included described in the various embodiments described above Any one of light-source system.Additionally, projection arrangement can further include optical modulator chip well known in the art and thoroughly The elements such as mirror, will not be described here.

Refer to Fig. 9, Fig. 9 is the flow chart of the blue light bearing calibration of light-source system of the present invention.As shown in figure 9, this enforcement The blue light bearing calibration of the light-source system of example comprises the following steps.

In step s1, produce a blue laser.

In step s2, produce a correction light.

In step s3, closing light is carried out to blue laser and correction light, so that the mixed light of blue laser and correction light Chromaticity coordinates compared to blue laser chromaticity coordinates closer to predetermined blue light chromaticity coordinates.

In a preferred embodiment, in step s3, Spectral modification can be carried out to correction light, then after Spectral modification being carried out Correction light and blue laser carry out closing light.

Wherein, the chromaticity coordinates carrying out the correction light of closing light with blue laser is located at the color of blue laser on cie chromaticity diagram The prolongation of two end points lines of span of the chromaticity coordinates to the mixed light according to predetermined blue light chromaticity coordinates setting for the coordinate In closed area defined in line between line, the chromaticity diagram edge of cie chromaticity diagram and two end points.

In a preferred embodiment, the x-axis coordinate of the chromaticity coordinates of mixed light is more than or equal to 0.13 and is less than or equal to 0.18, mixes The y-axis coordinate of the chromaticity coordinates of closing light is more than or equal to 0.04 and is less than or equal to 0.07.

In a preferred embodiment, the x-axis coordinate of the chromaticity coordinates of mixed light is more than or equal to 0.145 and is less than or equal to 0.155, And y-axis coordinate is equal to 0.06.

The specific embodiment of above steps has hereinbefore been described in detail, will not be described here.

By the way, the projection arrangement of the present invention, light-source system and its blue light bearing calibration are passed through calibration light source The correction light producing and blue laser produced by blue laser light source carry out closing light, carry out school with the color to blue laser Just so as to meet predetermined color requirement, improve visual effect.

These are only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every said using the present invention Equivalent structure or equivalent flow conversion that bright book and accompanying drawing content are made, or directly or indirectly it is used in other related technology necks Domain, is included within the scope of the present invention.

Claims (13)

1. a kind of light-source system is it is characterised in that described light-source system includes:
Blue laser light source, for producing a blue laser;
Calibration light source, described calibration light source is used for producing a correction light, and described correction light is in blue light, blue green light and green glow One or more combination in any;
Multiplexing apparatus, for closing light is carried out to described blue laser and described correction light, so that described blue laser and described Correction light mixed light chromaticity coordinates compared to described blue laser chromaticity coordinates closer to predetermined blue light chromaticity coordinates;
Colour wheel, described colour wheel includes transparent area and at least one green wavelength switch region;
Driving means, described driving means drive described colour wheel, so that described transparent area and described green wavelength switch region replace It is arranged on the propagation path of described blue laser, described green wavelength switch region carries out wavelength convert to described blue laser, Blue laser described in described transparent area transmission;
Described calibration light source is according to the intermittent output calibration light of transparent area and green wavelength switch region of described colour wheel;
Described calibration light source output calibration light only when transparent area is arranged on blue laser and the transmission path of correction light, green Light wavelength conversion area closes when being arranged in blue laser and the transmission path of correction light or its voltage is only maintained at a below lighting The predetermined voltage of threshold value.
2. light-source system according to claim 1 is it is characterised in that described Multiplexing apparatus carry out spectrum to described correction light Modify, and carry out closing light by carrying out the described correction light after Spectral modification with described blue laser.
3. light-source system according to claim 1 and 2 is it is characterised in that on cie chromaticity diagram, with described blue laser The chromaticity coordinates carrying out the correction light of closing light sets to according to described predetermined blue light chromaticity coordinates positioned at the chromaticity coordinates of described blue laser The extended line of two end points lines of the span of the chromaticity coordinates of described mixed light put, the chromaticity diagram edge of cie chromaticity diagram And in the closed area defined in line between described two end points, the y of the correction light chromaticity coordinates in described closed area Axial coordinate is more than described mixed light chromaticity coordinates y-axis coordinate.
4. light-source system according to claim 3 is it is characterised in that the x-axis coordinate of the chromaticity coordinates of described mixed light is more than Equal to 0.14 and less than or equal to 0.18, the y-axis coordinate of the chromaticity coordinates of described mixed light is more than or equal to 0.03 and is less than or equal to 0.08.
5. light-source system according to claim 3 is it is characterised in that the x-axis coordinate of the chromaticity coordinates of described mixed light is more than Equal to 0.155 and less than or equal to 0.165, and y-axis coordinate is equal to 0.06.
6. light-source system according to claim 1 is it is characterised in that described calibration light source is led.
7. light-source system according to claim 1 it is characterised in that described Multiplexing apparatus be light splitting optical filter, described point One of blue laser described in light filter transmission and described correction light, and reflect in described blue laser and described correction light Another, and then closing light is carried out to described blue laser and described correction light.
8. light-source system according to claim 1 is it is characterised in that described Multiplexing apparatus include light splitting optical filter, reflection Cover and light collecting device, described reflector includes opening and curved reflecting surface, in described blue laser and described correction light One through described light splitting filter transmission to described curved reflecting surface, and reflex to described light through described curved reflecting surface and collect dress Put, another in described blue laser and described correction light incides described light splitting optical filter and through described point from described opening Light optical filter reflexes to described curved reflecting surface, then reflexes to described light collecting device through described curved reflecting surface, and then to institute State blue laser and described correction light carries out closing light.
9. light-source system according to claim 8 is it is characterised in that described light splitting optical filter is to described blue laser and institute State correction light to be scattered.
10. light-source system according to claim 1 is it is characterised in that described Multiplexing apparatus include light splitting optical filter, reflection Cover, reflecting mirror and light collecting device, described reflector includes opening and curved reflecting surface, described blue laser and described correction One of light incides described reflecting mirror from described opening after reflecting through described light splitting optical filter, and through the reflection of described reflecting mirror To described curved reflecting surface, then reflex to described light collecting device, described blue laser and described school through described curved reflecting surface Another in positive light incides described reflecting mirror from described opening after described light splitting filter transmission, and through described reflecting mirror Reflex to described curved reflecting surface, then reflex to described light collecting device through described curved reflecting surface, and then described blue light is swashed Light and described correction light carry out closing light.
11. light-source systems according to claim 10 are it is characterised in that described reflecting mirror is to described blue laser and described Correction light is scattered.
12. light-source systems according to claim 7-11 any one are it is characterised in that described light splitting optical filter is to described Correction light and/or described blue laser carry out Spectral modification.
A kind of 13. projection arrangements are it is characterised in that described projection arrangement includes the light source described in claim 1-12 any one System.
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