CN107037679A - A kind of projection arrangement - Google Patents
A kind of projection arrangement Download PDFInfo
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- CN107037679A CN107037679A CN201710290293.5A CN201710290293A CN107037679A CN 107037679 A CN107037679 A CN 107037679A CN 201710290293 A CN201710290293 A CN 201710290293A CN 107037679 A CN107037679 A CN 107037679A
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- light
- color
- converter section
- wheel
- projection arrangement
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
- Microscoopes, Condenser (AREA)
- Optical Filters (AREA)
Abstract
The present invention includes monochromatic source, fluorescent wheel and filter wheel on a kind of projection arrangement, projection arrangement.Monochromatic source sends the first light of the first color, fluorescent wheel includes transmissive portions, the first smooth converter section and the second smooth converter section, transmissive portions are sector notch or segment-like transparent region, first smooth converter section, the second smooth converter section are disposed adjacent with transmissive portions, first smooth converter section is excited to produce the second light, and the second smooth converter section is excited to produce the 3rd light；Filter wheel includes the first colour filter region, and corresponding to transmissive portions, the first smooth converter section and the second smooth converter section, the first light, the second light and the 3rd light may pass through the first colour filter region；Wherein, Db=D1+D2+D3, Db, D1, D2, D3 are respectively the first colour filter region, transmissive portions, the first smooth converter section, the corresponding central angle of the second smooth converter section.Cooperation of the invention by the first smooth converter section and the second smooth converter section and the first colour filter region, to carry out adjustment blue in three primary colors.
Description
Technical field
The present invention relates to the projection arrangement of a kind of projection arrangement, more particularly to a kind of partially purple phenomenon of improvement.
Background technology
In the projection arrangement of current LASER Light Source, LASER Light Source (being usually violet laser) collocation of a primary colors system is used
Yellow fluorescence wheel, and the gold-tinted produced by fluorescent wheel is divided into red and green by filter wheel spectrum groupware of arranging in pairs or groups, and institute in system
The blueness needed is the purple produced by LASER Light Source.But violet laser light source true qualities and do not meet pure in human eye vision
Indigo plant, the picture produced by also therefore causing projection arrangement has partially purple phenomenon.
The content of the invention
To improve the phenomenon of the purple partially of the picture produced by above-mentioned projection arrangement, the present invention provides a kind of projection arrangement.
Above-mentioned projection arrangement includes：
Monochromatic source, the monochromatic source sends the first light, and the color of first light is the first color；
Fluorescent wheel, the fluorescent wheel includes transmissive portions, the first smooth converter section and the second smooth converter section, and the transmissive portions lack to be fan-shaped
Mouth or segment-like transparent region, the first smooth converter section are disposed adjacent with the transmissive portions, and the second smooth converter section is disposed adjacent in this
First smooth converter section or the second smooth converter section are disposed adjacent in the transmissive portions, and the first smooth converter section has the second color glimmering
Light powder, the first smooth converter section excites the second light of generation through first light, and the color of second light is second color,
The second smooth converter section excites the 3rd light of generation through first light, and the color of the 3rd light is the 3rd color, and this second
Color, the wavelength of the 3rd color are all higher than the wavelength of first color；And
Filter wheel, the filter wheel includes the first colour filter region, and the first colour filter region corresponds to the transmissive portions, first light
Converter section and the second smooth converter section, first light, second light and the 3rd light may pass through first color filter regions
Domain；
Wherein, Db=D1+D2+D3, Db be the first colour filter region in corresponding central angle on the filter wheel, D1 is saturating for this
Portion is penetrated in corresponding central angle on the fluorescent wheel, D2 be the first smooth converter section in corresponding central angle on the fluorescent wheel, D3 is
The second smooth converter section is in corresponding central angle on the fluorescent wheel.
As optional technical scheme, the monochromatic source is LASER Light Source.
As optional technical scheme, the first smooth converter section turns in corresponding central angle on the fluorescent wheel and second light
Change portion equal in corresponding central angle on the fluorescent wheel.
As optional technical scheme, the 3rd color is identical with second color.
As optional technical scheme, the fluorescent wheel has the 3rd smooth converter section, and the 3rd smooth converter section has the 4th face
Color fluorescent material, the 3rd smooth converter section excites the 4th light of generation through first light, and the color of the 4th light is the 4th
Color, the wavelength of the 4th color is more than the wavelength of second color, wherein, D1+D2+D3+D4=360 °, D4 is the 3rd light
Converter section is in corresponding central angle on the fluorescent wheel.
As optional technical scheme, first color is purple, and second color is green or cyan, the 3rd color
For green or cyan, the 4th color is yellow.
As optional technical scheme, the filter wheel also includes the second colour filter region, the 3rd colour filter region and the 4th colour filter
Region, Db+Dr+Dg+Ds=360 °, Dr be the second colour filter region in corresponding central angle on the filter wheel, Dg is the 3rd
Colour filter region is in corresponding central angle on the filter wheel, and Ds is the 4th colour filter region in corresponding central angle on the filter wheel.
As optional technical scheme, having on the second colour filter region on red plated film, the 3rd colour filter region has
There is transparent coating or yellow plated film on green plated film, the 4th colour filter region.
As optional technical scheme, the projection arrangement also includes:
First two-way Look mirror, is arranged between the monochromatic source and the fluorescent wheel, the first two-way Look mirror have this first
The high-penetration rate of the high reflectance of color and other colors, the first two-way Look mirror includes relative first surface and the second table
Face, the monochromatic source is arranged at the side of the first surface of the first two-way Look mirror with the fluorescent wheel, and the filter wheel is arranged at
The side of the second surface of the first two-way Look mirror, first light reaches the fluorescent wheel after being reflected via the first surface,
The Part I of first light passes through the fluorescent wheel via the transmissive portions, and the remainder of first light is in the fluorescent wheel
It is upper to be excited, it is excited the propagation path of the second light, the 3rd light and the 4th light along first light produced
Backtracking simultaneously penetrates the first two-way Look mirror to the filter wheel；And
Light guidance unit, the Part I to guide first light reach the first two-way Look mirror this second
Through reaching the filter wheel after second surface reflection behind surface.
As optional technical scheme, the projection arrangement also includes:
Quarter-wave plate, is arranged between the fluorescent wheel and the filter wheel；
Speculum, is arranged at the transmissive portions and towards the quarter-wave plate,；And
Second two-way Look mirror, is arranged between the filter wheel and the quarter-wave plate, and the second two-way Look mirror has the
The high-penetration rate of the high reflectance of one polarization state ripple and non-first polarization state ripple, the second two-way Look mirror includes the 3rd surface, should
Quarter-wave plate may be contained within the side on the 3rd surface with the monochromatic source, and first light reflects via the 3rd surface
The fluorescent wheel is reached through the quarter-wave plate afterwards, the Part I of first light is passed through after being reflected via the speculum should
Quarter-wave plate reaches the filter wheel via the 3rd surface through the second two-way Look mirror again, the remainder of first light
Point excited on the fluorescent wheel, be excited second light, the 3rd light and the 4th light of generation along first light
Passed through behind the propagation path backtracking of line to the 3rd surface of the second two-way Look mirror and pass through this second pair by the 3rd surface
The filter wheel is reached to Look mirror.
Compared to prior art, projection arrangement of the invention can be changed by the first smooth converter section of fluorescent wheel and the second light
Portion coordinates with the first colour filter region on filter wheel, to carry out adjustment blue in three primary colors.Even if the first color is purple, throw
Image device also can adjust purple toward long wave direction, make the color that it is showed for blueness or close to blueness, to improve
The perception of user, for improving the problem of projection arrangement is partially purple in the prior art.
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. 2 is the schematic diagram of fluorescent wheel in Fig. 1；
Fig. 3 is the schematic diagram of filter wheel in Fig. 1；
Fig. 4 is the schematic diagram of 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 monochromatic light
Source 110, fluorescent wheel 120 and filter wheel 130.Monochromatic source 110 sends the first light 111, and the color of the first light 111 is first
Color.
Fig. 2 is the schematic diagram of fluorescent wheel in Fig. 1.Please with reference to Fig. 1, Fig. 2, fluorescent wheel 120 includes transmissive portions 121, the
The one smooth converter section 123 of smooth converter section 122 and second, in the present embodiment, transmissive portions 121 are sector notch, certainly, in other realities
Apply in example, transmissive portions 121 or fan-shaped transparent region only need to disclosure satisfy that the first light 111 can be worn by transmissive portions 121
Fluorescent wheel 120 is crossed, in the present embodiment, the first smooth converter section 122 is disposed adjacent with transmissive portions 121, the second smooth converter section
123 are disposed adjacent in the smooth converter section 123 of the smooth converter section 122 and second of transmissive portions 121, i.e., first respectively positioned at transmissive portions 121
Both sides, certainly, in other embodiment, the first smooth converter section 122 is disposed adjacent with transmissive portions 121, the second smooth converter section 123
It can be disposed adjacent in the first smooth converter section 122, i.e., the first smooth converter section 123 of smooth converter section 122 and second is located at transmissive portions respectively
121 homonymy.
First smooth converter section 122 has the second color fluorescence powder, and the first smooth converter section 122 excites production through the first light 111
Raw second light 112, the color of the second light 112 is the second color, and the second smooth converter section 123 excites production through the first light 111
Raw 3rd light (not shown), the color of the 3rd light is the 3rd color, and the second color, the wavelength of the 3rd color are all higher than first
The wavelength of color, to meet the light that the first smooth converter section 123 of smooth converter section 122 and second can be excited by the first light 111
Condition.In the present embodiment, the first smooth converter section 122 is in the corresponding smooth converter sections of central angle D2 and second on fluorescent wheel 120
123 is equal in corresponding central angle D3 on fluorescent wheel 120, the selection of the first smooth smooth angle of converter section 123 of converter section 122 and second
Hold depending on adjustment situation of the projection arrangement 100 for the first color.
Fig. 3 is the schematic diagram of filter wheel in Fig. 1.Please with reference to Fig. 1 to Fig. 3, filter wheel 130 includes the first colour filter region
131, the first colour filter region 131 corresponds to transmissive portions 121, the first smooth converter section 123 of smooth converter section 122 and second, wherein, Db=
D1+D2+D3, Db are corresponding central angle of the first colour filter region 131 on filter wheel 130, and D1 is transmissive portions 121 in fluorescent wheel
Corresponding central angle on 120, D2 be the first smooth converter section 122 in corresponding central angle on fluorescent wheel 120, D3 is the conversion of the second light
Portion 123 is in corresponding central angle on fluorescent wheel 120.That is, the first colour filter region 131 of filter wheel 130 and transmissive portions
121st, the region synchronous rotary corresponding to the first smooth converter section 123 of smooth converter section 122 and second, in corresponding state all the time,
And transmissive portions 121, the first smooth converter section 123 of smooth converter section 122 and second distinguish corresponding first light 111, the second light
112 and the 3rd light (not shown) may pass through the first colour filter region 131, i.e., wrapped through in the light in the first colour filter region 131
Containing the first light 111, the second light 112 and the 3rd light (not shown).
Because the first light 111 is excitation line, the light of short wavelength would generally be chosen, and based on the smaller energy of wavelength
The reason for amount is higher, the color of the first light 111 would generally choose the bluish violet higher compared to blue excitation energy or purple
Color.In addition, the first light 111 is used often as the trichromatic blueness of projection arrangement 100, but only with the (example of the first light 111
Such as bluish violet or purple) it is used as the trichromatic blueness of projection arrangement 100, the problem of projection arrangement 100 is partially purple can be brought,
And projection arrangement 100 can be by the second light 112 and the 3rd light (not shown) come to the light through the first colour filter region 131
Make the adjustment of color to improve partially purple phenomenon, you can pass through the first smooth converter section of smooth converter section 122 and second of fluorescent wheel 120
123 coordinate with the first colour filter region 131 on filter wheel 130, to carry out adjustment blue in three primary colors.Even if that is,
First color is purple, and projection arrangement 100 will can also be adjusted as purple blue in three primary colors toward long wave direction, even the
As trichromatic blueness after one light 111, the second light 112 and the mixing of the 3rd light (not shown), in this way, it can be showed
Color out is for blueness or close to blueness, to improve the perception of user, for improving projection arrangement in the prior art
Partially purple the problem of.
In the present embodiment, fluorescent wheel 120 also has the 3rd smooth converter section 124, and the 3rd smooth converter section 124 has the 4th face
Color fluorescent material, the 3rd smooth converter section 124 excites the 4th light (not shown) of generation, the color of the 4th light through the first light 111
For the 4th color, the wavelength of the 4th color is more than the wavelength of the second color, wherein, D1+D2+D3+D4=360 °, D4 is the 3rd
Light converter section 124 is in corresponding central angle on fluorescent wheel 120.In the present embodiment, the first color is purple, and the second color is green
Color or cyan, the 3rd color is green or cyan, and the 4th color is yellow, and the 3rd color and the second color can be with identical or not
Together, and in other embodiments, the first color is alternatively bluish violet, and the second color, the 3rd color are yellow green etc., fluorescent material face
Color chooses end depending on adjustment situation of the projection arrangement 100 for the first color.
In the present embodiment, D1/ (D2+D3)>1, it is arranged such to prevent projection arrangement 100 while improving partially purple
Cause other colour cast problems, for example, partially green or partially blue or green.
To provide other primary colors of projection arrangement 100, filter wheel 130 also includes the second colour filter region 132, the 3rd color filter regions
The colour filter region 134 of domain 133 and the 4th, wherein, Db+Dr+Dg+Ds=360 °, Dr is the second colour filter region 131 in filter wheel 130
Upper corresponding central angle, Dg be the 3rd colour filter region 132 in corresponding central angle on filter wheel 130, Ds is the 4th colour filter region
134 in corresponding central angle on filter wheel 130.There is red plated film, the 3rd in the present embodiment, on the second colour filter region 132
Having on colour filter region 133 on green plated film, the 4th colour filter region 134 has transparent coating or yellow plated film.Thus by
Second 132 pair the 4th of colour filter region light is filtered and obtains red, is carried out by 133 pair the 4th of the 3rd colour filter region light
Filter and obtain green, yellow is obtained by the 4th colour filter region 134, along with the indigo plant obtained by the first colour filter region 131
Color, can provide all required for the picture image of projection arrangement 100 to be formed after the colors of RGBY tetra- of projection arrangement 100, mixed light
Color.
To make the first light 111, the second light 112, the 3rd light (not shown), the 4th light (not shown) be incident to filter
Colour wheel 130, as shown in figure 1, projection arrangement 100 also includes the first two-way Look mirror 140 and light guidance unit 150.First is two-way
Look mirror 140 is arranged between monochromatic source 110 and filter wheel 130, and the first two-way Look mirror 140 has the high reflectance of the first color
And the two-way Look mirror 140 of the high-transmission rate of other colors, i.e., first does not allow penetrating for the light of the first color, and allow other face
The light of color is penetrated, and the first two-way Look mirror 140 includes relative first surface 141 and second surface 142, monochromatic source 110
The side of the first surface 141 of the first two-way Look mirror 140 is arranged at fluorescent wheel 120, filter wheel 130 is arranged at the first bidirectional color
The side of the second surface 142 of mirror 140, the first light 111 that monochromatic source 110 is sent is via the of the first two-way Look mirror 140
Fluorescent wheel 120 is reached after the reflection of one surface 141, the Part I 1111 of the first light passes through fluorescent wheel via transmissive portions 121
120, and the remainder of the first light 111 is excited on fluorescent wheel 120, is excited the second light 112, the 3rd light produced
It is two-way that the direction of line (not shown) and the 4th light (not shown) along the propagation path in contrast to the first light 111 is back to first
Filter wheel 130 is transmitted through after the second surface 142 of Look mirror 140.And the Part I 1111 of the first light is then guided by light
Unit 150 is directed to up to after the second surface 142 of the first two-way Look mirror 140 again via the second table of the first two-way Look mirror 140
Face 142 reaches filter wheel 130 after reflecting.That is, the first light 111, which is transferred to after fluorescent wheel 120, is divided into two parts：First light
111 Part I 1111 and for two parts of remainder (not shown) for the first light 111 for exciting fluorescent material,
The Part I 1111 of one light 111 is directed to be transferred to the first bidirectional color through first path (light guidance unit 150 is guided)
The second surface 142 of mirror 140, and the remainder (not shown) for the first light 111 for being used to exciting fluorescent material excites fluorescence
The second light 112 of generation, the 3rd light (not shown) and the 4th light (not shown) are excited after material along the second path (original first
Light is transferred to the reverse path in the path of fluorescent wheel 120) first surface 141 of the first two-way Look mirror 140 is transferred to, finally,
The Part I 1111 of first light 111, the second light 112, the 3rd light (not shown), the 4th light (not shown) are incident to
Light splitting is carried out after filter wheel 130, finally the Multiplexing apparatus (not shown) through projection arrangement 100 again, projection can be provided after mixed light
All colours required for the picture image of device 100.In the present embodiment, the first two-way Look mirror 140 has the height of the first color
The high-transmission rate of reflectivity and other colors, certainly, in other embodiment, the first two-way Look mirror 140 or other settings,
The high reflectance of high-transmission rate and other colors for example with the first color, so only need to suitably adjust monochromatic source 110 with
The position of filter wheel 130, for example, exchanging monochromatic source 110 and the position of filter wheel 130.
In the present embodiment, light guidance unit 150 is by three speculum groups into so that the Part I of the first light
1111 direction of transfer deflects 270 °.
In the present embodiment, projection arrangement 100 realizes the Part I of the first light by light guidance unit 150
The change of 1111 direction of transfer, and in other embodiment, can also change the first of the first light by other optical modules
The direction of transfer of part 1111.Fig. 4 is the schematic diagram of another embodiment of projection arrangement of the present invention.It refer to Fig. 4, projection arrangement
200 include monochromatic source 110, fluorescent wheel 120, filter wheel 130, the second two-way Look mirror 240, quarter-wave plate 250 and reflection
Mirror 260.It is setting for the second two-way Look mirror 240, quarter-wave plate 250 and speculum 260 with the difference of projection arrangement 100
Put.Quarter-wave plate 250 is arranged between fluorescent wheel 120 and filter wheel 130, in the present embodiment, and speculum 260 is arranged at
Transmissive portions 121 and towards quarter-wave plate 250, certainly, in other embodiment, speculum 260 can also reflectance coating
Form is coated on fluorescent wheel 120 and is arranged at transmissive portions 121, the position of coating can for transmissive portions 121 close to four/
The side of one wave plate 250 or the opposite side away from quarter-wave plate 250, the second two-way Look mirror 240 are arranged at filter wheel 130
Between quarter-wave plate 250, the second two-way Look mirror 240 has the high reflectance and non-first polarization state of the first polarization state ripple
The high-penetration rate of ripple, the second two-way Look mirror 240 includes the 3rd surface 241, and quarter-wave plate 250 is all provided with monochromatic source 110
The side on the 3rd surface 241 of the second two-way Look mirror 240 is placed in, the first light 111 passes through four after being reflected via the 3rd surface 241
/ mono- wave plate 250 reaches fluorescent wheel 120, and the Part I 1111 of the first light passes through four points after being reflected via speculum 260
One of wave plate 250 reach filter wheel 130 through the second two-way Look mirror 240 via the 3rd surface 241 again, the first light 111 it is surplus
Remaining part point (not shown) is excited on fluorescent wheel 120, be excited the second light 112 of generation, the 3rd light (not shown) and
Propagation path backtracking of the 4th light (not shown) along the first light 111 is to the 3rd surface 241 of the second two-way Look mirror 240
By by the 3rd surface 241 filter wheel 130 is reached through the second two-way Look mirror 240.That is, the first light 111 is transferred to fluorescent wheel
It is divided into two parts after 120：The Part I 1111 of first light 111 and for the remainder for the first light for exciting fluorescent material
Divide (not shown), the reflected mirror 260 of Part I 1111 of the first light 111 reflexes to the 3rd table of the second two-way Look mirror 240
Face 241, and the remainder (not shown) of the first light 111 excites and the second light 112 of generation, the 3rd light is excited after fluorescent material
Line (not shown) and the 4th light (not shown) are reflected the 3rd surface for being also transmitted to the second two-way Look mirror 240 by fluorescent wheel 120
241, finally, the Part I 1111 of the first light, the second light 112, the 3rd light (not shown), the 4th light (not shown)
It is incident to after filter wheel 130 and carries out light splitting, finally the Multiplexing apparatus (not shown) through projection arrangement 200 again, can be carried after mixed light
For all colours required for the picture image of projection arrangement 200.
In the present embodiment, monochromatic source 110 is LASER Light Source, and laser is the characteristics of have deflection polarity, monochromatic source 110
The first light 111 sent is passed twice through after quarter-wave plate 250, and S ripples (or P can be converted to by P ripples (or S ripples)
Ripple), so as to be that can penetrate the state of the second two-way Look mirror 240, Yu Benshi by the State Transferring reflected by the second two-way Look mirror 240
Apply in example, the first polarization state ripple be P ripples, the second two-way Look mirror 240 have for P ripples high reflectance and non-P ripples it is highly transmissive
Rate, i.e. monochromatic source 110 are sent can be reflected after the first light 111 (P ripples) by the second two-way Look mirror 240, and again pass by four
After/mono- wave plate 250, the polarization state of the first light 111 is changed into that the second two-way Look mirror 240 can be penetrated after S ripples from P ripples, and its
His light such as the second light 112, the 3rd light (not shown), the 4th light (not shown) are non-polarized light, can penetrate
Filter wheel 130 is reached after two two-way Look mirrors 240.
In summary, projection arrangement of the invention can be by fluorescent wheel the first smooth converter section and the second smooth converter section and filter
The first colour filter region on colour wheel coordinates, to carry out adjustment blue in three primary colors.Even if the first color is purple, projection arrangement
Also purple can be adjusted toward long wave direction, makes the color that it is showed for blueness or close to blueness, to improve user
Perception, for improving the problem of projection arrangement is partially purple in the prior art.
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：
Monochromatic source, the monochromatic source sends the first light, and the color of first light is the first color；
Fluorescent wheel, the fluorescent wheel include transmissive portions, the first smooth converter section and the second smooth converter section, the transmissive portions be sector notch or
Segment-like transparent region, the first smooth converter section is disposed adjacent with the transmissive portions, the second smooth converter section be disposed adjacent in this first
Light converter section or the second smooth converter section are disposed adjacent in the transmissive portions, and the first smooth converter section has the second color fluorescence
Powder, the first smooth converter section excites the second light of generation through first light, and the color of second light is second color, should
Second smooth converter section excites the 3rd light of generation through first light, and the color of the 3rd light is the 3rd color, second face
Color, the wavelength of the 3rd color are all higher than the wavelength of first color；And
Filter wheel, the filter wheel includes the first colour filter region, and the first colour filter region corresponds to the transmissive portions, first light and changed
Portion and the second smooth converter section, first light, second light and the 3rd light may pass through the first colour filter region；
Wherein, Db=D1+D2+D3, Db be the first colour filter region in corresponding central angle on the filter wheel, D1 is the transmissive portions
In corresponding central angle on the fluorescent wheel, D2 is the first smooth converter section in corresponding central angle on the fluorescent wheel, D3 for this
Two smooth converter sections are in corresponding central angle on the fluorescent wheel.
2. projection arrangement as claimed in claim 1, it is characterised in that the monochromatic source is LASER Light Source.
3. projection arrangement as claimed in claim 1, it is characterised in that the first smooth converter section is in corresponding circle on the fluorescent wheel
Heart angle is equal in corresponding central angle on the fluorescent wheel with the second smooth converter section.
4. projection arrangement as claimed in claim 1, it is characterised in that the 3rd color is identical with second color.
5. projection arrangement as claimed in claim 1, it is characterised in that the fluorescent wheel has the 3rd smooth converter section, the 3rd light
Converter section has the 4th color fluorescence powder, and the 3rd smooth converter section excites the 4th light of generation, the 4th light through first light
The color of line is the 4th color, and the wavelength of the 4th color is more than the wavelength of second color, wherein, D1+D2+D3+D4=
360 °, D4 is the 3rd smooth converter section in corresponding central angle on the fluorescent wheel.
6. projection arrangement as claimed in claim 5, it is characterised in that first color is purple, second color is green
Or cyan, the 3rd color is green or cyan, and the 4th color is yellow.
7. projection arrangement as claimed in claim 6, it is characterised in that the filter wheel also includes the second colour filter region, the 3rd filter
Color region and the 4th colour filter region, Db+Dr+Dg+Ds=360 °, Dr is the second colour filter region in corresponding circle on the filter wheel
Heart angle, Dg be the 3rd colour filter region in corresponding central angle on the filter wheel, Ds is the 4th colour filter region in the filter wheel
Upper corresponding central angle.
8. projection arrangement as claimed in claim 7, it is characterised in that have red plated film on the second colour filter region, this
Having on three colour filter regions on green plated film, the 4th colour filter region has transparent coating or yellow plated film.
9. projection arrangement as claimed in claim 5, it is characterised in that the projection arrangement also includes:
First two-way Look mirror, is arranged between the monochromatic source and the fluorescent wheel, and the first two-way Look mirror has first color
High reflectance and other colors high-penetration rate, the first two-way Look mirror include relative first surface and second surface, should
Monochromatic source and the fluorescent wheel are arranged at the side of the first surface of the first two-way Look mirror, the filter wheel be arranged at this first
The side of the second surface of two-way Look mirror, first light reaches the fluorescent wheel after being reflected via the first surface, and this first
The Part I of light passes through the fluorescent wheel via the transmissive portions, and the remainder of first light is in progress on the fluorescent wheel
Excite, be excited the former road of the propagation path of second light, the 3rd light and the 4th light of generation along first light and return
Return and penetrate the first two-way Look mirror to the filter wheel；And
Light guidance unit, Part I to guide first light reaches the second surface of the first two-way Look mirror
The filter wheel is reached by after second surface reflection.
10. projection arrangement as claimed in claim 5, it is characterised in that the projection arrangement also includes:
Quarter-wave plate, is arranged between the fluorescent wheel and the filter wheel；
Speculum, is arranged at the transmissive portions and towards the quarter-wave plate,；And
Second two-way Look mirror, is arranged between the filter wheel and the quarter-wave plate, and the second two-way Look mirror is inclined with first
The high-penetration rate of the high reflectance of polarization state ripple and non-first polarization state ripple, the second two-way Look mirror includes the 3rd surface, this four points
One of wave plate and the monochromatic source may be contained within the side on the 3rd surface, first light is worn after being reflected via the 3rd surface
Cross the quarter-wave plate and reach the fluorescent wheel, the Part I of first light passes through this four points after being reflected via the speculum
One of wave plate reach the filter wheel through the second two-way Look mirror via the 3rd surface again, the remainder of first light in
Excited on the fluorescent wheel, be excited second light, the 3rd light and the 4th light that produce along first light
Passed through behind propagation path backtracking to the 3rd surface of the second two-way Look mirror and second bidirectional color is passed through by the 3rd surface
Mirror reaches the filter wheel.
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| CN107037679B (en) | 2019-08-30 |
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