CN107656413A - A kind of projection arrangement - Google Patents

A kind of projection arrangement Download PDF

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Publication number
CN107656413A
CN107656413A CN201711023014.5A CN201711023014A CN107656413A CN 107656413 A CN107656413 A CN 107656413A CN 201711023014 A CN201711023014 A CN 201711023014A CN 107656413 A CN107656413 A CN 107656413A
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CN
China
Prior art keywords
light
red
laser
blue laser
look mirror
Prior art date
Application number
CN201711023014.5A
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Chinese (zh)
Inventor
张家铭
黄清帅
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苏州佳世达光电有限公司
佳世达科技股份有限公司
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Application filed by 苏州佳世达光电有限公司, 佳世达科技股份有限公司 filed Critical 苏州佳世达光电有限公司
Priority to CN201711023014.5A priority Critical patent/CN107656413A/en
Publication of CN107656413A publication Critical patent/CN107656413A/en

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Classifications

    • 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

Abstract

The present invention includes blue laser light source, red laser light source, fluorescent wheel and Red lightscreening plate on a kind of projection arrangement, the projection arrangement.There is yellow fluorescent powder on fluorescent wheel;Blue laser light source is used to provide blue laser, and after blue laser reaches the fluorescent wheel, the blue laser of part excites yellow fluorescent powder to produce yellow fluorescence;Red laser light source is used to provide red laser;After the yellow fluorescence reaches the Red lightscreening plate with the red laser, the Red lightscreening plate isolates the first light in the yellow fluorescence, the wave-length coverage of first light is first wave length scope, and the first wave length scope includes the wave-length coverage of feux rouges in the yellow fluorescence;Wherein, first light in the red laser and the yellow fluorescence collectively forms the red primaries of the projection arrangement.Than the way of the prior art for only retaining red light in yellow fluorescence, projection arrangement of the invention shows color representation and brightness performance excellent, and that can take into account red primaries in brightness.

Description

A kind of projection arrangement

Technical field

The present invention relates to a kind of projection arrangement, more particularly to a kind of projection for taking into account red color performance and brightness performance to fill Put.

Background technology

At present in the projection arrangement of LASER Light Source, LASER Light Source (being usually blue laser) collocation of a primary colors system is used Yellow fluorescence wheel, and spectrum groupware of arranging in pairs or groups gold-tinted caused by fluorescent wheel is divided into it is red with green, and be reach it is accurate Feux rouges chromaticity coordinates, most green glow in foregoing gold-tinted generally is filtered out using spectrum groupware, so as to cause to be excited Yellow light-emitting low temperature red Utilization rate in color wave-length coverage is not high, further influences the brightness performance of feux rouges.

The content of the invention

To improve the problem of color representation of above-mentioned feux rouges can not be taken into account with brightness performance, the present invention provides a kind of projection dress Put.

The above-mentioned projection arrangement includes:

Fluorescent wheel, there is yellow fluorescent powder on the fluorescent wheel;

Blue laser light source, for providing blue laser, after the blue laser reaches the fluorescent wheel, the blueness of part swashs Light excites the yellow fluorescent powder to produce yellow fluorescence;

Red laser light source, for providing red laser;And

Red lightscreening plate, after the yellow fluorescence reaches the Red lightscreening plate with the red laser, Red lightscreening plate separation The first light gone out in the yellow fluorescence, the wave-length coverage of first light are first wave length scope, the first wave length scope bag Wave-length coverage containing feux rouges in the yellow fluorescence;

Wherein, first light in the red laser and the yellow fluorescence collectively forms the red primaries of the projection arrangement.

As optional technical scheme, the first wave length scope is 580nm to 660nm.

As optional technical scheme, the wave-length coverage of the blue laser is 400nm to 455nm, the ripple of the red laser Long scope is 635nm to 645nm.

As optional technical scheme, the fluorescent wheel also has reflecting part, does not have the yellow fluorescent powder on the reflecting part, The reflecting part is used to reflect the blue laser being incident on the reflecting part.

As optional technical scheme, the projection arrangement also includes:

Quarter-wave plate;

Filter wheel, the filter wheel include blue color filter, green color filter and the Red lightscreening plate;

Multiplexing apparatus;And

First two-way Look mirror, the first two-way Look mirror have the high reflectance of the first polarization state ripple and non-first polarization state ripple High-penetration rate, the polarization state of the blue laser and the red laser is the first polarization state, and the first two-way Look mirror includes phase To first surface and second surface, the quarter-wave plate and the blue laser light source are arranged at the place of the first surface Side, the filter wheel are arranged at the place side of the second surface with the red laser light source;

Wherein,

In in the first period, the blue laser is glimmering via this is reached through the quarter-wave plate after first surface reflection Halo, then pass through the second two-way Look mirror via the first surface again through the quarter-wave plate via after reflecting part reflection Reach the filter wheel, filtered afterwards by the blue color filter, the light after filtering enters the Multiplexing apparatus;

In in the second period, the blue laser is glimmering via this is reached through the quarter-wave plate after first surface reflection The yellow fluorescent powder on halo is simultaneously excited, be excited caused by propagation path original road of the yellow fluorescence along the blue laser It is back to after the first surface of the first two-way Look mirror through reaching the colour filter through the first two-way Look mirror by the first surface Wheel, is filtered, the light after filtering enters the Multiplexing apparatus by the green color filter afterwards;

In in the 3rd period, the blue laser is glimmering via this is reached through the quarter-wave plate after first surface reflection The yellow fluorescent powder on halo is simultaneously excited, be excited caused by propagation path original road of the yellow fluorescence along the blue laser It is back to after the first surface of the first two-way Look mirror through reaching the colour filter through the first two-way Look mirror by the first surface Wheel, at the same time, the red laser reach the filter wheel, Zhi Houyou after being reflected via the second surface of the first two-way Look mirror The Red lightscreening plate is filtered, and the light after filtering enters the Multiplexing apparatus.

As optional technical scheme, first period, second period and the 3rd period are continuous period times.

As optional technical scheme, the projection arrangement also includes:

Quarter-wave plate;

Light-dividing device, the light-dividing device include the first prism with blue color filter, the with the Red lightscreening plate Two prisms and the prism with green color filter, the blue color filter on first prism are used to reflect blue light and transmit it The light of his wavelength, first prism again by the blue light be transferred to corresponding to blue dmd chip, the red filter on second prism Mating plate is used to reflect the light of the first wave length scope and transmit the light of other wavelength, and second prism is again by the first wave length The light of scope is transferred to corresponding red dmd chip, and the green color filter on the prism is used to transmiting green glow, and the 3rd The green glow is transferred to corresponding green dmd chip again on prism;And

First two-way Look mirror, the first two-way Look mirror have the high reflectance of the first polarization state ripple and non-first polarization state ripple High-penetration rate, the first two-way Look mirror includes relative first surface and second surface, the quarter-wave plate and the blueness LASER Light Source is arranged at the place side of the first surface, and the light-dividing device is arranged at the second surface with the red laser light source Place side;

Wherein, through the quarter-wave plate again via this after the Part I of the blue laser reflects via the reflecting part First surface reaches the light-dividing device through the first two-way Look mirror, and the remainder of the blue laser on the fluorescent wheel in carrying out Excite, be excited caused by propagation path backtracking of the yellow fluorescence along the blue laser to the first two-way Look mirror this Passed through behind one surface and reach the light-dividing device through the second two-way Look mirror by the first surface, the red laser is via this first pair To Look mirror the second surface reflection after reach the light-dividing device, afterwards, the Part I of the blue laser, the yellow fluorescence and The red laser is divided via the light-dividing device again.

As optional technical scheme, the blue laser provides with red laser colleague.

As optional technical scheme, the fluorescent wheel also has transmissive portions, and the transmissive portions are incident to the transmission for transmission The Part I of the blue laser in portion.

As optional technical scheme, the projection arrangement also includes:

Light-dividing device, the light-dividing device have the Red lightscreening plate;And

Second two-way Look mirror, the second two-way Look mirror have the high reflectance of blueness and the high-penetration rate of other colors, should Second two-way Look mirror includes the 3rd relative surface and the 4th surface, the blue laser light source and the fluorescent wheel be arranged at this second The place side on the 3rd surface of two-way Look mirror, the red laser light source are arranged at the second two-way Look mirror with the light-dividing device The place side on the 4th surface, the blue laser reach the fluorescent wheel after being reflected via the 3rd surface, and the blue laser is somebody's turn to do Part I passes through the fluorescent wheel via the transmissive portions, and the remainder of the blue laser is excited on the fluorescent wheel, Propagation path backtracking of the yellow fluorescence caused by being excited along the blue laser simultaneously penetrates the second two-way Look mirror to this point Electro-optical device, the red laser reach the light-dividing device after being reflected via the 4th surface of the second two-way Look mirror;And

Light guidance unit, to guide the Part I of the blue laser to reach the 4th of the second two-way Look mirror the Behind surface the light-dividing device is reached after being reflected by the 4th surface;

Wherein, the light-dividing device is filter wheel or Amici prism group.

Compared to prior art, the wavelength of the red laser in projection arrangement of the invention is more than red light in yellow fluorescence The wavelength of line, the light that red wavelength range can be less than with the first light medium wavelength is neutralized, therefore the projection arrangement of the present invention The color representation of red primaries can still be controlled well after mixing red laser and the first light are as red primaries, then it is and foregoing Yellow fluorescence remains the non-red light of part, so than the way of the prior art for only retaining red light, sheet The projection arrangement of invention shows excellent in brightness, can take into account the color representations of red primaries and be showed with brightness.

Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.

Brief description of the drawings

Fig. 1 is the schematic diagram of an embodiment of projection arrangement of the present invention;

Fig. 2A is an embodiment of projection arrangement of the present invention in the operating diagram in the first period;

Fig. 2 B are an embodiment of projection arrangement of the present invention in the operating diagram in the second period;

Fig. 2 C are an embodiment of projection arrangement of the present invention in the operating diagram in the 3rd period;

Fig. 3 is the schematic diagram of another embodiment of projection arrangement of the present invention;

Fig. 4 is the schematic diagram of the another embodiment of projection arrangement of the present invention.

Embodiment

Fig. 1 is the schematic diagram of an embodiment of projection arrangement of the present invention.Fig. 1 is refer to, projection arrangement 100 includes blueness and swashed Radiant 110, red laser light source 120, fluorescent wheel 130 and Red lightscreening plate 141, blue laser light source 110 provide blueness and swashed Light 111, red laser light source 120 provide red laser 121, and in the present embodiment, the wave-length coverage of blue laser 111 is 400nm to 455nm, the wave-length coverage of red laser 121 is 635nm to 645nm.There is yellow fluorescent powder (not on fluorescent wheel 130 Show), after blue laser 111 reaches fluorescent wheel 130, the blue laser 111 of part excites foregoing yellow fluorescent powder to produce Huang Color fluorescence 131, afterwards, yellow fluorescence 131 reach Red lightscreening plate 141 with red laser 121, and Red lightscreening plate 141 is then The first light (not shown) in yellow fluorescence 131 is isolated, the wave-length coverage of the first foregoing light is first wave length scope, First wave length scope includes the wave-length coverage of feux rouges in yellow fluorescence 131, i.e. the first light not only includes red wavelength range Light, the wavelength that can also include part be slightly less than the light of red wavelength range, to improve the utilization of yellow fluorescence 131 Rate, in the present embodiment, first wave length scope is, for example, 580nm to 660nm.

While isolating the first light, red laser 121 also can by Red lightscreening plate 141 it is separated go out, in this way, red The light of laser 121 and first together constitutes the red primaries of projection arrangement 100.Furthermore the wavelength of red laser 121 is typically larger than The wavelength of red light in yellow fluorescence 131, the light medium wavelength of red laser 121 and first are less than the light of red wavelength range Mutually neutralize, the color representation of projection arrangement 100 can't occur too big change, disclosure satisfy that the Hongyuan of projection arrangement 100 The color requirements of color, therefore projection arrangement 100 can still control red primaries well after red laser 121 mixes with the first light Color representation.Foregoing yellow fluorescence 131 remains the non-red light of part again, thus than it is of the prior art only Retain the way of red light, projection arrangement 100 shows more excellent in brightness, i.e., projection arrangement 100 can take into account Hongyuan The color representation of color shows with brightness.

Fig. 2A is that an embodiment of projection arrangement of the present invention is thrown in the operating diagram in the first period, Fig. 2 B for the present invention For one embodiment of image device in the operating diagram in the second period, Fig. 2 C are an embodiment of projection arrangement of the present invention in the 3rd Operating diagram in period.Please with reference to Fig. 1 to Fig. 2 C, in the present embodiment, fluorescent wheel 130 also has reflecting part 132, Do not have the yellow fluorescent powder on reflecting part 132, as shown in Figure 2 A, reflecting part 132, which is used to reflect, to be incident on reflecting part 132 Blue laser 111.

To meet the work requirements of projection arrangement 100, projection arrangement 100 also includes filter wheel 140, the first two-way Look mirror 150th, quarter-wave plate 160, Multiplexing apparatus 170.Filter wheel 140 includes blue color filter (not shown), green color filter (not Show) and the (not shown) of Red lightscreening plate 141, the first two-way Look mirror 150 has the high reflectance and non-the of the first polarization state ripple The high-penetration rate of one polarization state ripple, the polarization state of blue laser 111 and red laser 121 is the first polarization state, and first is two-way Look mirror 150 includes relative first surface 151 and second surface 152, and quarter-wave plate 160 is set with blue laser light source 110 The place side of first surface 151 is placed in, filter wheel 140 is arranged at the place side of second surface 152 with red laser light source 120.

In the present embodiment, blue laser 111 has the characteristics of deflection polarity, and blue laser 111 passes twice through a quarter After wave plate 160, S ripples (or P ripples) can be converted to by P ripples (either S ripples), so as to by the shape reflected by the first two-way Look mirror 150 State is converted to the state that can penetrate the first two-way Look mirror 150, and in the present embodiment, the first polarization state ripple is P ripples, the first bidirectional color Mirror 150 has for the high reflectance of P ripples and the high-transmission rate of non-P ripples, i.e., can be two-way by first after blue laser 111 (P ripples) Look mirror 150 is reflected, and twice after quarter-wave plate 160, the polarization state of blue laser 111 S ripples are changed into from P ripples after i.e. The first two-way Look mirror 150 can be penetrated, and yellow fluorescence 131 is non-polarized light, and colour filter is reached after can penetrating the first two-way Look mirror 150 Wheel 140.

As shown in Figure 2 A, in the first period, blue laser 111 passes through a quarter after being reflected via first surface 151 Wave plate 160 reaches fluorescent wheel 130, and quarter-wave plate 160 is passed through after then being reflected via reflecting part 132, then via the first table Face 151 reaches filter wheel 140 through the first two-way Look mirror 150, is filtered afterwards by blue color filter, the light after filtering enters Enter Multiplexing apparatus 170.

Again as shown in Figure 2 B, in the second period, blue laser 110 reflected via first surface 151 after through four/ One wave plate 160 reaches the yellow fluorescent powder on fluorescent wheel 130 and excited, and is excited caused yellow fluorescence 131 and swashs along blueness Passed through after the propagation path backtracking of light 111 to the first surface 151 of the first two-way Look mirror 150 by first surface 151 through the One two-way Look mirror 150 reaches filter wheel 140, is filtered afterwards by green color filter, and the light after filtering enters Multiplexing apparatus 170。

Again as shown in Figure 2 C, in the 3rd period, blue laser 110 reflected via first surface 151 after through four/ One wave plate 160 reaches the yellow fluorescent powder on fluorescent wheel 130 and excited, and is excited caused yellow fluorescence 131 and swashs along blueness Passed through after the propagation path backtracking of light 111 to the first surface 151 of the first two-way Look mirror 150 by first surface 151 through the One two-way Look mirror 150 reaches filter wheel 140, at the same time, red laser 121 via the first two-way Look mirror 150 second surface Filter wheel 140 is reached after 152 reflections, is filtered afterwards by Red lightscreening plate, the light after filtering enters Multiplexing apparatus 170.

And in the present embodiment, the first period, the second period and the 3rd period are continuous three periods, and continuous with this Three periods carry out circular flow for the cycle, in this way, Multiplexing apparatus 170 can receive continuous blue primary, green primary color and red Primary colors, so as to meet the color demand of projection arrangement 100.

In the present embodiment, projection arrangement 100 is divided under the framework of filter wheel 140 by the way of sequential, and In other embodiment, other spectroscopic modes can be also used.

Fig. 3 is the schematic diagram of another embodiment of projection arrangement of the present invention.Fig. 3 is refer to, projection arrangement 200 includes blueness LASER Light Source 210, red laser light source 220, fluorescent wheel 230, the first two-way Look mirror 250, quarter-wave plate 260, closing light dress Put 270, light-dividing device 280.

First two-way Look mirror 250 has the high reflectance of the first polarization state ripple and the high-penetration rate of non-first polarization state ripple, The polarization state of blue laser 211 and red laser 221 is the first polarization state, and the first two-way Look mirror 250 includes relative first Surface 251 and second surface 252, quarter-wave plate 260 are arranged at the place of first surface 251 with blue laser light source 210 Side, light-dividing device 280 are arranged at the place side of second surface 252 with red laser light source 220.

Different from projection arrangement 100, projection arrangement 200 does not use the spectroscopic modes of sequential, and uses the light splitting of non-sequential Mode, i.e., blue laser 211 and red laser 221 are provided simultaneously, rather than timesharing provides blue laser 211 and red laser 221 mode.

Specific light path is advanced as shown in figure 3, the Part I of blue laser 211 passes through four after being reflected via reflecting part 232 / mono- wave plate 260 reaches light-dividing device 280, blue laser 211 via first surface 251 through the first two-way Look mirror 250 again Remainder excited on fluorescent wheel 230, be excited caused by propagation path of the yellow fluorescence 231 along blue laser 211 Through being reached by first surface 251 through the first two-way Look mirror 250 after backtracking to the first surface 251 of the first two-way Look mirror 250 To light-dividing device 280, red laser 221 reaches light-dividing device after being reflected via the second surface 252 of the first two-way Look mirror 250 280, afterwards, Part I, yellow fluorescence 231 and the red laser 252 of blue laser 211 are carried out via light-dividing device 280 again Light splitting.

In the present embodiment, light-dividing device 280 is Amici prism group.Light-dividing device 280 includes having blue color filter 2811 the first prism 281, the second prism 282 with Red lightscreening plate 2821 and the Rhizoma Sparganii with green color filter 2831 Mirror 283, the blue color filter 2811 on the first prism 281 are used to reflect blue light and transmit the light of other wavelength, the first prism 281 again by blue light be transferred to corresponding to blue dmd chip 291, the Red lightscreening plate 2821 on the second prism 282 is used to reflecting the The light of one wave-length coverage and transmit the light of other wavelength, the light of first wave length scope is transferred to by the second prism 282 again Corresponding red dmd chip 292, the green color filter 2831 on prism 283, which is used to transmiting green glow prism 283, again will Green glow is transferred to corresponding green dmd chip 293.

In spectroscopic processes, the light of first wave length scope is transferred to corresponding red dmd chip by the second prism 282 292, and using the light (red laser 252 and the first light in yellow fluorescence 231) in the range of first wave length as projection arrangement 200 red primaries., can be with first because the wavelength of red laser 221 is typically larger than the wavelength of red light in yellow fluorescence 231 The light that light medium wavelength is less than red wavelength range is neutralized, therefore projection arrangement 200 is in the light of red laser 221 and first The color representation of red primaries can be still controlled after mixing well, then and foregoing yellow fluorescence 231 remains the non-red of part Light, so than it is of the prior art only retain red light way, projection arrangement 200 showed in brightness it is excellent, I.e. projection arrangement 200 can take into account the color representation of red primaries and brightness shows.

In the above embodiments, the fluorescent wheel 130 of projection arrangement 100 or the fluorescent wheel 230 of projection arrangement 200 have respectively There are reflecting part 132 or reflecting part 232 to be used to reflect the blue laser 111 or 211 not excited by yellow fluorescent powder, i.e., using reflection Formula fluorescent wheel framework, and in other embodiment, it is glimmering with yellow that fluorescent wheel can also carry out blue laser by the way of transmission-type The light path control of light.

Fig. 4 is the schematic diagram of another embodiment of projection arrangement of the present invention.Fig. 4 is refer to, projection arrangement 300 includes blueness LASER Light Source 310, red laser light source 320, fluorescent wheel 330, the second two-way Look mirror 340, light guidance unit 350 and light splitting dress Put 360.Blue laser light source 310 provides blue laser 311, and red laser light source 320 provides red laser 321, fluorescent wheel 330 With transmissive portions (not shown), foregoing transmissive portions are used for the Part I 3111 for transmiting the blue laser 311 for being incident to transmissive portions. In the present embodiment, light guidance unit 350 is by three speculum groups into may be such that the Part I 3111 of blue laser 311 Direction of transfer 270 ° of deflection occurs.

Due to the fluorescent wheel 330 for transmission-type that projection arrangement 300 uses, so the second two-way Look mirror 340 and first pair Setting to 150 or first two-way Look mirror 250 of Look mirror is different.Second two-way Look mirror 340 is arranged to the high reflection with blueness The two-way Look mirror of the high-penetration rate of rate and other colors.In the present embodiment, the second two-way Look mirror 340 has the high reflection of blueness The high-transmission rate of rate and other colors, certainly, in other embodiment, the second two-way Look mirror 340 or other settings, such as The high reflectance of high-transmission rate and other colors with blueness, so only need to suitably adjust the position of light source and filter wheel i.e. Can.

Second two-way Look mirror 340 includes relative the 3rd surface 341 and the 4th surface 342, blue laser light source 310 with it is glimmering Halo 330 is arranged at the place side on the 3rd surface 341 of the second two-way Look mirror 340, red laser light source 320 and light-dividing device 360 are arranged at the place side on the 4th surface 342 of the second two-way Look mirror 340, and blue laser 311 reflects via the 3rd surface 341 Fluorescent wheel 330 is reached afterwards, and the Part I 3111 of blue laser 311 passes through fluorescent wheel 330, blue laser 311 via transmissive portions Part I 3111 reach the 4th surface 342 of the second two-way Look mirror 340 via the guiding of light guidance unit 350 again after Light-dividing device 360 is reached after being reflected via the 4th surface 342, and the remainder of blue laser 311 on fluorescent wheel 330 in carrying out Excite, be excited caused by propagation path backtracking of the yellow fluorescence 312 along blue laser 311 and penetrate the second two-way Look mirror 340 to light-dividing device 360, arrival light splitting dress after red laser 321 reflects via the 4th surface 342 of the second two-way Look mirror 340 Put 360.In the present embodiment, light-dividing device 360 can be the filter wheel 140 in projection arrangement 100, certainly, in other embodiment In, the Amici prism group of the light-dividing device 280 in light-dividing device 360 or projection arrangement 200.

In summary, the wavelength of the red laser in projection arrangement of the invention is more than the ripple of red light in yellow fluorescence Long, the light that red wavelength range can be less than with the first light medium wavelength is neutralized, therefore the projection arrangement of the present invention is mixing Red laser and the first light are as the color representation that can still control red primaries after red primaries well, then and foregoing yellow is glimmering Light remains the non-red light of part, so than the way of the prior art for only retaining red light, it is of the invention Projection arrangement shows excellent in brightness, can take into account the color representations of red primaries and be showed with brightness.

Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence Various corresponding changes and deformation, but these corresponding changes and deformation can be made according to the present invention by knowing those skilled in the art The protection domain of appended claims of the invention should all be belonged to.

Claims (10)

1. a kind of projection arrangement, it is characterised in that the projection arrangement includes:
Fluorescent wheel, there is yellow fluorescent powder on the fluorescent wheel;
Blue laser light source, for providing blue laser, after the blue laser reaches the fluorescent wheel, the blue laser of part swashs Send out the yellow fluorescent powder and produce yellow fluorescence;
Red laser light source, for providing red laser;And
Red lightscreening plate, after the yellow fluorescence reaches the Red lightscreening plate with the red laser, the Red lightscreening plate isolates this The first light in yellow fluorescence, the wave-length coverage of first light is first wave length scope, and the first wave length scope includes should The wave-length coverage of feux rouges in yellow fluorescence;
Wherein, first light in the red laser and the yellow fluorescence collectively forms the red primaries of the projection arrangement.
2. projection arrangement as claimed in claim 1, it is characterised in that the first wave length scope is 580nm to 660nm.
3. projection arrangement as claimed in claim 1, it is characterised in that the wave-length coverage of the blue laser be 400nm extremely 455nm, the wave-length coverage of the red laser is 635nm to 645nm.
4. projection arrangement as claimed in claim 1, it is characterised in that the fluorescent wheel also has a reflecting part, on the reflecting part not With the yellow fluorescent powder, the reflecting part is used to reflect the blue laser being incident on the reflecting part.
5. projection arrangement as claimed in claim 4, it is characterised in that the projection arrangement also includes:
Quarter-wave plate;
Filter wheel, the filter wheel include blue color filter, green color filter and the Red lightscreening plate;
Multiplexing apparatus;And
First two-way Look mirror, the first two-way Look mirror have the high reflectance of the first polarization state ripple and the height of non-first polarization state ripple Penetrance, the polarization state of the blue laser and the red laser is the first polarization state, and the first two-way Look mirror includes relative First surface and second surface, the quarter-wave plate are arranged at the place side of the first surface with the blue laser light source, should Filter wheel is arranged at the place side of the second surface with the red laser light source;
Wherein,
In in the first period, the blue laser reaches the fluorescence via after first surface reflection through the quarter-wave plate Wheel, then reached again via the first surface through the second two-way Look mirror through the quarter-wave plate after being reflected via the reflecting part To the filter wheel, filtered afterwards by the blue color filter, the light after filtering enters the Multiplexing apparatus;
In in the second period, the blue laser reaches the fluorescent wheel via after first surface reflection through the quarter-wave plate On the yellow fluorescent powder and excited, be excited caused by propagation path backtracking of the yellow fluorescence along the blue laser Passed through after to the first surface of the first two-way Look mirror and reach the filter wheel through the first two-way Look mirror by the first surface, it Filtered afterwards by the green color filter, the light after filtering enters the Multiplexing apparatus;
In in the 3rd period, the blue laser reaches the fluorescent wheel via after first surface reflection through the quarter-wave plate On the yellow fluorescent powder and excited, be excited caused by propagation path backtracking of the yellow fluorescence along the blue laser Passed through after to the first surface of the first two-way Look mirror and reach the filter wheel through the first two-way Look mirror by the first surface, with This simultaneously, the red laser via the first two-way Look mirror the second surface reflect after reach the filter wheel, it is red by this afterwards Colo(u)r filter is filtered, and the light after filtering enters the Multiplexing apparatus.
6. projection arrangement as claimed in claim 5, it is characterised in that first period, second period and the 3rd period For continuous period times.
7. projection arrangement as claimed in claim 4, it is characterised in that the projection arrangement also includes:
Quarter-wave plate;
Light-dividing device, the light-dividing device include the first prism with blue color filter, the second rib with the Red lightscreening plate Mirror and the prism with green color filter, the blue color filter on first prism are used to reflect blue light and transmit other ripples Long light, first prism again by the blue light be transferred to corresponding to blue dmd chip, the Red lightscreening plate on second prism The light of other wavelength is transmitted for reflecting the light of the first wave length scope, second prism is again by the first wave length scope Light be transferred to corresponding to red dmd chip, the green color filter on the prism is used to transmit green glow, the prism On again by the green glow be transferred to corresponding to green dmd chip;And
First two-way Look mirror, the first two-way Look mirror have the high reflectance of the first polarization state ripple and the height of non-first polarization state ripple Penetrance, the first two-way Look mirror include relative first surface and second surface, the quarter-wave plate and the blue laser Light source is arranged at the place side of the first surface, and the light-dividing device is arranged at the place of the second surface with the red laser light source Side;
Wherein, the Part I of the blue laser via the reflecting part reflect after through the quarter-wave plate again via this first Surface reaches the light-dividing device through the first two-way Look mirror, and the remainder of the blue laser is swashed on the fluorescent wheel Hair, be excited caused by propagation path backtracking of the yellow fluorescence along the blue laser to the first two-way Look mirror this first Passed through behind surface and by the first surface reach the light-dividing device through the second two-way Look mirror, the red laser is first two-way via this Look mirror the second surface reflection after reach the light-dividing device, afterwards, the Part I of the blue laser, the yellow fluorescence and should Red laser is divided via the light-dividing device again.
8. projection arrangement as claimed in claim 7, it is characterised in that the blue laser provides with red laser colleague.
9. projection arrangement as claimed in claim 1, it is characterised in that the fluorescent wheel also has transmissive portions, and the transmissive portions are used for Transmission is incident to the Part I of the blue laser on the transmissive portions.
10. projection arrangement as claimed in claim 9, it is characterised in that the projection arrangement also includes:
Light-dividing device, the light-dividing device have the Red lightscreening plate;And
Second two-way Look mirror, the second two-way Look mirror have the high reflectance of blueness and the high-penetration rate of other colors, and this second Two-way Look mirror includes the 3rd relative surface and the 4th surface, and it is second two-way that the blue laser light source and the fluorescent wheel are arranged at this The place side on the 3rd surface of Look mirror, the red laser light source and the light-dividing device be arranged at the second two-way Look mirror this The place side on four surfaces, the blue laser via the 3rd surface reflect after reach the fluorescent wheel, the blue laser this first Part passes through the fluorescent wheel via the transmissive portions, and the remainder of the blue laser is excited on the fluorescent wheel, is excited Propagation path backtracking of the caused yellow fluorescence along the blue laser simultaneously penetrates the second two-way Look mirror to the light splitting and filled Put, the red laser reaches the light-dividing device after being reflected via the 4th surface of the second two-way Look mirror;And
Light guidance unit, to guide the Part I of the blue laser to reach the 4th surface of the second two-way Look mirror By by reaching the light-dividing device after the reflection of the 4th surface;
Wherein, the light-dividing device is filter wheel or Amici prism group.
CN201711023014.5A 2017-10-27 2017-10-27 A kind of projection arrangement CN107656413A (en)

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CN1522384A (en) * 2002-05-14 2004-08-18 索尼公司 Illuminating optical system, image display unit and method of illuminating space modulation element
CN101779473A (en) * 2006-12-13 2010-07-14 皇家飞利浦电子股份有限公司 Multi-color primary light generation in a projection system using leds
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