CN107065411A - Fluorescence filter wheel and its light-source system, optical projection system - Google Patents
Fluorescence filter wheel and its light-source system, optical projection system Download PDFInfo
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- CN107065411A CN107065411A CN201710197690.8A CN201710197690A CN107065411A CN 107065411 A CN107065411 A CN 107065411A CN 201710197690 A CN201710197690 A CN 201710197690A CN 107065411 A CN107065411 A CN 107065411A
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- fluorescence
- light
- filter wheel
- fluorescence filter
- plate face
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Classifications
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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
-
- 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
- G03B21/2066—Reflectors in illumination beam
Abstract
The invention provides a kind of fluorescence filter wheel and its light-source system, optical projection system, it is related to illumination and display technology field, including glass substrate, the glass substrate is in a ring, the glass substrate includes the first plate face and the second plate face being oppositely arranged, second plate face includes first area and second area, even photosphere is provided with the first area, fluorescence coating is provided with the second area, filtering film is provided with the fluorescence coating, alleviate existing optical projection system and be both provided with fluorescence colour wheel, filter wheel is provided with again, cause light channel structure complicated, assembly difficulty is very high, preparation technology is cumbersome, production efficiency very low technical problem, having reached makes fluorescence filter wheel replace fluorescence colour wheel and filter wheel, so that the light channel structure of optical projection system is simple, assembly difficulty declines, preparation technology is easier control, the technique effect that production efficiency is improved.
Description
Technical field
The present invention relates to illumination and display technology field, more particularly, to a kind of fluorescence filter wheel and its light-source system, throwing
Shadow system.
Background technology
With the fast development of information age, it can realize that the application of the optical projection system of large screen display is increasingly extensive,
Existing optical projection system includes illuminating source, fluorescence colour wheel and the filter wheel set gradually, and illuminating source is used to produce irradiation light,
Fluorescence colour wheel is received for irradiation light, and irradiation light is changed into Stimulated Light, and filter wheel is used to filter Stimulated Light, to ensure projection
The light of wavelength required for going out.But it is due to that existing optical projection system had both been provided with fluorescence colour wheel, filter wheel is provided with again, is led
Cause light channel structure complicated, assembly difficulty is very big, and preparation technology is cumbersome, and production efficiency is very low.
In view of this, it is special to propose the present invention.
The content of the invention
An object of the present invention is to provide a kind of fluorescence filter wheel for having fluorescence colour wheel and filter wheel effect concurrently, with slow
Solve existing optical projection system and be both provided with fluorescence colour wheel, filter wheel is provided with again, cause light channel structure complicated, assembly difficulty is very
Greatly, preparation technology is cumbersome, production efficiency very low technical problem.
The fluorescence filter wheel that the present invention is provided, including glass substrate, the glass substrate in a ring, the glass substrate bag
The first plate face and the second plate face being oppositely arranged are included, second plate face includes first area and second area, firstth area
It is provided with domain on even photosphere, the second area and is provided with fluorescence coating, filtering film is additionally provided with the fluorescence coating.
Further, it is provided with first plate face in anti-reflection film, second plate face and is provided with blue dichroic piece.
Further, the fluorescence coating is mixed by adhesive and fluorescent material.
Further, it is additionally provided with smooth layer between the fluorescence coating and the filtering film.
Further, the smooth layer is formed by adhesive solidification.
Further, the filtering film is notch filter film.
The second object of the present invention is to provide a kind of light-source system, and fluorescence is both provided with to alleviate existing optical projection system
Colour wheel, is provided with filter wheel again, causes light channel structure complicated, and assembly difficulty is very big, and preparation technology is cumbersome, and production efficiency is very low
Technical problem.
The light-source system that the present invention is provided, including the fluorescence filter wheel that illuminating source, drive device and the present invention are provided, institute
Stating illuminating source is used to produce blue light, and the fluorescence filter wheel is arranged in the light path for the blue light that the illuminating source is produced, institute
Stating drive device is used to drive the fluorescence filter wheel to rotate.
Further, the drive device is motor.
The third object of the present invention is to provide a kind of optical projection system, and fluorescence is both provided with to alleviate existing optical projection system
Colour wheel, is provided with filter wheel again, causes light channel structure complicated, and assembly difficulty is very big, and preparation technology is cumbersome, and production efficiency is very low
Technical problem.
The optical projection system that the present invention is provided, including light-source system, the first optical system, the speculum and that the present invention is provided
Two optical systems, first optical system, the speculum and second optical system are set in turn in the luminous light
Between source and the fluorescence filter wheel.
Further, first optical system includes the first convex lens, concavees lens and the diffusion sheet set gradually, described
Second optical system includes the second convex lens, the 3rd convex lens and/or the 4th convex lens set gradually.
The fluorescence filter wheel that the present invention is provided so that irradiation light passes through, and is made by setting even photosphere in first area
The light distribution of injection is evenly；By setting fluorescence coating on the second region, irradiation light is converted into fluorescence and projected, is led to
Cross and filtering film is set on fluorescence coating, fluorescence is filtered, it is ensured that the color for projecting fluorescence is fuller, so as to have
Effect substitutes the fluorescence colour wheel and filter wheel in existing optical projection system so that the structure of optical projection system is simpler, and assembly difficulty is significantly
Reduction, preparation technology is easier control, can either save substantial amounts of man power and material, production efficiency can be effectively improved again.
The light-source system that the present invention is provided, the fluorescence filter wheel provided by using the present invention, instead of fluorescence colour wheel and filter
Colour wheel, makes that the structure of light path is simpler, and assembly difficulty is greatly reduced, and preparation technology is easier control, can either save substantial amounts of
Man power and material, can effectively improve production efficiency again.
The optical projection system that the present invention is provided, the fluorescence filter wheel provided by using the present invention is substituted in existing optical projection system
Fluorescence colour wheel and filter wheel so that the structure of optical projection system is simpler, and assembly difficulty is greatly reduced, preparation technology be easier control
System, can either save substantial amounts of man power and material, production efficiency can be effectively improved again.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the front view for the fluorescence filter wheel that the embodiment of the present invention 1 is provided；
Fig. 2 be fluorescence filter wheel A-A shown in Fig. 1 to sectional view；
Fig. 3 is the sectional view of fluorescence filter wheel B-B direction shown in Fig. 2；
The light channel structure schematic diagram for the light-source system that Fig. 4 is provided by the embodiment of the present invention 2；
Fig. 5 is the light channel structure schematic diagram for the optical projection system that the embodiment of the present invention 3 is provided.
Icon：100- fluorescence filter wheels；101- glass substrates；The even photospheres of 102-；103- fluorescence coatings；104- filters film；
105- anti-reflection films 105；106- blueness dichroic pieces；107- smooth layers；201- illuminating sources；The convex lens of 202- first；203- is recessed
Lens；204- diffusion sheets；205- speculums；The convex lens of 206- second；The convex lens of 207- the 3rd；The convex lens of 208- the 4th.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment 1
Fig. 1 is the front view for the fluorescence filter wheel that the embodiment of the present invention 1 is provided；Fig. 2 is fluorescence filter wheel A-A shown in Fig. 1
To sectional view；Fig. 3 is the sectional view of fluorescence filter wheel B-B direction shown in Fig. 2；As Figure 1-3, it is provided in an embodiment of the present invention
Fluorescence filter wheel 100, including glass substrate 101, in a ring, glass substrate 101 includes first be oppositely arranged to glass substrate 101
Plate face and the second plate face, the second plate face include being provided with even photosphere 102, second on first area and second area, first area
It is provided with region on fluorescence coating 103, fluorescence coating 103 and is additionally provided with filtering film 104.
The fluorescence filter wheel that the present embodiment is provided, by setting even photosphere 102 in first area, so that irradiation light is logical
Cross, and the light of injection is distributed evenly；By setting fluorescence coating 103 on the second region, irradiation light is converted into
Fluorescence is projected, and by setting filtering film 104 on fluorescence coating 103, fluorescence is filtered, it is ensured that project the wavelength of fluorescence
Narrower, color is fuller, so as to effectively substitute fluorescence colour wheel and the filter wheel in existing optical projection system so that optical projection system
Structure it is simpler, assembly difficulty declines to a great extent, preparation technology be easier control, substantial amounts of man power and material can either be saved,
Production efficiency can be effectively improved again.
In the present embodiment, using glass substrate 101 as even photosphere 102 and the bearing part of fluorescence coating 103, one side was both
Irradiation light can be passed through, still further aspect is also resistant to high temperature, it is to avoid bearing part is deformed upon because high temperature irradiates,
Influence the transmission effects of light.
In the present embodiment, glass substrate 101 is set to annular, in order to mutual of the rotating shaft axle with drive device
Match somebody with somebody, to enable the rotating shaft of drive device to pass through glass substrate 101, drive glass substrate 101 to rotate.
In the present embodiment, the second plate face is set to first area and second area, and be provided with the first region
Even photosphere 102, during so that proper use blue light is as irradiation light, can pass through the firstth area after blue light transmissive glass substrate 101
The even photosphere 102 in domain is projected after filtering so that the light of injection is more uniform；By setting fluorescence coating 103 in second area, with
So that blue light logical penetrate is irradiated to fluorescence coating 103 after glass substrate 101, fluorescence coating 103, which is excited to produce after fluorescence, to be projected；By glimmering
Filtering film 104 is set on photosphere 103, fluorescence filtered so that the wavelength of light of injection is narrower, and color is fuller.
In the preferred embodiment of the present embodiment, even photosphere 102 is formed by the plating of barium sulfate powder spray.
In the preferred embodiment of the present embodiment, it is provided with anti-reflection film 105, the second plate face and is provided with the first plate face
Blue dichroic piece 106.
By being provided with anti-reflection film 105 in the first plate face, to reduce the intensity of reflected light in the first plate face, increase by first
The intensity of plate face transmitted light so that the loss of irradiation light is smaller, more saves the energy；By being provided with blueness two in the second plate face
To color chips 106, to enable blue light to be transmitted away by blue dichroic piece 106, the light of other wavelength is by blue dichroic
Piece 106 is reflected back in glass substrate 101, so as to ensure the wave-length coverage of transmitted light.
In the present embodiment, blue dichroic piece 106 allows blue light to pass through, and the light of other wavelength is reflected, blueness
The producer that dichroic piece 106 can produce plated film from Yang Ming optics, crystal photoelectricity etc. is purchased.
In the preferred embodiment of the present embodiment, fluorescence coating 103 is mixed by adhesive and fluorescent material.
By being prepared by mixing into fluorescence coating 103 in adhesive and fluorescent material so that the preparation technology of fluorescence coating 103 is more simple
It is single, it need to only save substantial amounts of man power and material by the adhesive coated for being mixed with fluorescent material in second area, reduced work
Make the working strength of personnel.
In the preferred embodiment of the present embodiment, adhesive is organic adhesion agent or inorganic adhesive, such as epoxy resin
Adhesive, inorganic silica gel adhesive, elargol etc., it is further preferred that containing heat filling particle in adhesive, to cause fluorescence
The heat resistance lifting of layer 103, so as to improve the service life of fluorescence filter wheel 100；It is further preferred that heat filling particle
For one kind in aluminum oxide, aluminium nitride, boron nitride, yittrium oxide, zinc oxide, titanium oxide or at least two.
In the preferred embodiment of the present embodiment, smooth layer 107 is additionally provided between fluorescence coating 103 and filtering film 104.
Due to fluorescence coating 103 be by adhesive be well mixed with fluorescent material after be applied directly to second area solidification form,
And fluorescent material is generally 20 μm or so of particle, so the surface of fluorescence coating 103 commonly reaches hundreds of microns of roughness, because
This, in order to ensure the filter effect for filtering film 104, it is necessary to set filtering film after being first smoothed to fluorescence coating 103 again
104。
In the preferred embodiment of the present embodiment, smooth layer 107 is formed by adhesive solidification.
Fluorescence coating 103 is smoothed using adhesive, smooth layer 107 is formed after adhesive cooling and solidifying.It is preferred that
, the adhesive used is identical with the species for the adhesive that fluorescence coating 103 is used, to ensure smooth layer 107 and fluorescence coating
What is be bonded between 103 is more firm, to extend the service life of fluorescence filter wheel 100.
In the preferred embodiment of the present embodiment, the preparation technology of smooth layer 107 comprises the following steps：
(a) horizontal positioned of glass substrate 101 of fluorescence coating 103 is coated with, and sets up the second plate face；
(b) by adhesive coated on fluorescence coating 103；
(c) after after adhesive Self-leveling, high-temperature baking, to cause adhesive to solidify to form smooth layer 107.
In the preferred embodiment of the present embodiment, the temperature of high-temperature baking is 180-220 DEG C, more preferably 200 DEG C, is dried
The roasting time is 55-65 minutes, more preferably 60 minutes.
In the preferred embodiment of the present embodiment, filtering film 104 is notch filter film.
Notch filter film is prepared from by silica and/or titanium dioxide, and its preparation method comprises the following steps：It will apply
The glass substrate 101 of fluorescence coating 103 is covered with vacuum, by silica and/or titanium dioxide sputter in fluorescence coating 103
On, that is, notch filter film is made.
In the preferred embodiment of the present embodiment, notch filter film can also be by other high-index materials or low refraction
Rate material is prepared from.
By preparing notch filter film on fluorescence coating 103 so that by the light conversion after trap filter membrane into required ripple
Long light, so that can more be met customer need by the emergent ray after trap filter membrane.
In the preferred embodiment of the present embodiment, fluorescent material is yellow fluorescent powder, and yellow fluorescent powder is the yttrium that cerium is excited
Garnet system, i.e. Y3-XAl5O12:Cex(YAG) other types of yellow fluorescent powder, can also be selected as needed.
The mode of conventionally employed fluorescent material production white light is mainly that blue light emitting light source 201 coordinates red fluorescence powder and green
Fluorescent material, but this needs to set red fluorescence layer and green phosphor layer respectively in second area, and on red fluorescence layer
The feux rouges filtering film of red spectral band is set, the green glow filtering film of green light band is set on green fluorescent layer, preparation technology is cumbersome
Complexity, expends substantial amounts of man power and material.In the preferred embodiment of the present embodiment, coordinated using blue light emitting light source 201
Fluorescence filter wheel 100 produces white light, only need to set even photosphere 102 in first area, and for transmiting blue light, second area sets yellow
Color fluorescence coating 103, and in the sputter notch filter film on yellow fluorescence layer 103 so that excite generation by yellow fluorescence layer 103
Gold-tinted by being transformed into feux rouges and green glow after notch filter film, feux rouges, filter the blue light transmitted again with even photosphere 102,
White light can be formed, so as to enormously simplify the preparation technology of fluorescence filter wheel 100, substantial amounts of man power and material is saved.
Embodiment 2
The light channel structure schematic diagram for the light-source system that Fig. 4 is provided by the embodiment of the present invention 2；As shown in figure 4, the present embodiment
There is provided a kind of light-source system, the present embodiment is the further improvement on the basis of embodiment 1, the technical side that embodiment 1 is described
Case falls within the present embodiment, will not be repeated here.
The light-source system that the present embodiment is provided, including illuminating source 201, drive device (not shown) and embodiment 1 are provided
Fluorescence filter wheel 100, illuminating source 201 is used to produce blue light, and fluorescence filter wheel 100 is arranged at the generation of illuminating source 201
In the light path of blue light, drive device is used to drive fluorescence filter wheel 100 to rotate.
The light-source system that the present invention is provided, the fluorescence filter wheel provided by using the present invention, instead of fluorescence colour wheel and filter
Colour wheel, makes the structure of light path system simpler, and preparation technology is easier control, can either save substantial amounts of man power and material, again
Production efficiency can be effectively improved.
In the present embodiment, illuminating source 201 is arranged at the side where the first plate face of glass substrate 101, and light light
Source 201 is used to produce on blue light, blue light illumination to fluorescence filter wheel 100, projects Stimulated Light and blue light, Stimulated Light and blue light
Into white light, so that illumination is used.
In the present embodiment, drive device is used to drive fluorescence filter wheel 100 to rotate, to cause illuminating source 201 to send
Light be irradiated to the different zones of fluorescence filter wheel 100 successively, so as to be sequentially generated the blue light and Stimulated Light of transmission, blue light and by
Turn into white light after laser mixing.
In the preferred embodiment of the present embodiment, the fluorescence coating 103 on fluorescence filter wheel 100 is yellow fluorescence layer 103,
To cause blue light illumination to after fluorescence filter wheel 100, the Stimulated Light that the blue light and fluorescence coating transmitted is excited to produce is mixed to form
White light, to simplify the preparation technology of light-source system, saves man power and material.
In the preferred embodiment of the present embodiment, illuminating source 201 be blue LED lamp or blue laser diode, more
Preferably blue laser diode.By using blue laser diode as illuminating source 201, light-source system is enabled to penetrate
The light intensity of the white light gone out is bigger, and light efficiency is higher.
In the preferred embodiment of the present embodiment, drive device is motor.
Motor is also known as motor, is that one kind converts electrical energy into mechanical energy, and can reuse mechanical energy generation kinetic energy, is used for
Drive the electrical equipment of other devices.
In the preferred embodiment of the present embodiment, the rotating shaft of motor passes through the interstitial hole of fluorescence filter wheel 100, to drive
Fluorescence green colour wheel is around central axis.
The light-source system that the present embodiment is provided can be applied and illuminator, and such as stage lighting is illuminated.
Embodiment 3
Fig. 5 is the light channel structure schematic diagram for the optical projection system that the embodiment of the present invention 3 is provided；As shown in figure 5, the present embodiment is carried
A kind of optical projection system is supplied, the present embodiment is the further improvement on the basis of embodiment 2, the technical scheme that embodiment 2 is described
The present embodiment is fallen within, be will not be repeated here.
As shown in figure 5, the optical projection system that the present embodiment is provided, includes light-source system, the first optical system of the offer of embodiment 2
System, the optical system of speculum 205 and second, the first optical system, the optical system of speculum 205 and second are set in turn in luminous
Between light source 201 and fluorescence filter wheel 100.
Optical projection system provided in an embodiment of the present invention, the fluorescence filter wheel 100 provided by using the embodiment of the present invention 1 is replaced
For the fluorescence colour wheel and filter wheel in existing optical projection system so that the structure of optical projection system is simpler, preparation technology is easier control
System, can either save substantial amounts of man power and material, production efficiency can be effectively improved again.
In the present embodiment, illuminating source 201 is used to produce in blue light, the specific structure be the same as Example 2 of illuminating source 201 and sent out
The structure of radiant 201, will not be repeated here.
First optical system is used to the diverging light that illuminating source 201 irradiates changing into directional light injection；Speculum 205 is used
In the light path for changing directional light, to meet light path design, the structure space of optical projection system is saved；Second optical system is used to receive
The directional light that is projected from speculum 205 is simultaneously irradiated on fluorescence filter wheel after directional light is pooled into hot spot point again, glimmering to cause
The light intensity of the incident light of light filter wheel is bigger, and light efficiency is higher.
In the preferred embodiment of the present embodiment, the first optical system includes the first convex lens 202, recessed set gradually
Lens 203 and diffusion sheet 204, the second optical system include the second convex lens 206, the 3rd convex lens 207 and the set gradually
Four convex lens 208.
As shown in figure 5, the first convex lens 202, concavees lens 203 and being set gradually along the injection direction of light path, the second convex lens
Mirror 206, the 3rd convex lens 207 and the 4th convex lens 208 are also set gradually along the injection direction of light path.In the present embodiment,
One convex lens 202 are used to receive the diverging light of the injection of illuminating source 201 and project convergence light, and concavees lens 203, which are used to receive, to converge
Caustic simultaneously changes into directional light injection；Diffusion sheet 204 is used to make the directional light of injection more uniform；Second convex lens 206 are used
Projected in after the directional light that reception speculum 205 is reflected back and by directional light progress one-level convergence, the 3rd convex lens 207 are used for
Receive one-level converged light and projected after carrying out two grades of convergences, the 4th convex lens 208 are used to receive two grades of converged light and carry out three-level
Projected after convergence, so that the hot spot that the illumination projected after three-level convergence is mapped on fluorescence filter wheel is smaller.
In the preferred embodiment of the present embodiment, the second optical system can also only include the second convex lens 206 and
Three convex lens 207, the directional light reflected back by speculum 205 is carried out into two grades of convergences can pool the hot spot of very little.
The optical projection system that the present embodiment is provided, for projection imaging, the optical projection system can use various shadow casting techniques, such as
LCD projection technology, digital light processor shadow casting technique etc..
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of fluorescence filter wheel, it is characterised in that including glass substrate, the glass substrate in a ring, the glass substrate
Including the first plate face and the second plate face being oppositely arranged, second plate face includes first area and second area, described first
It is provided with region on even photosphere, the second area and is provided with fluorescence coating, filtering film is additionally provided with the fluorescence coating.
2. fluorescence filter wheel according to claim 1, it is characterised in that be provided with anti-reflection film in first plate face, institute
State and blue dichroic piece is provided with the second plate face.
3. fluorescence filter wheel according to claim 1, it is characterised in that the fluorescence coating is mixed by adhesive and fluorescent material
Form.
4. fluorescence filter wheel according to claim 3, it is characterised in that also set between the fluorescence coating and the filtering film
It is equipped with smooth layer.
5. fluorescence filter wheel according to claim 4, it is characterised in that the smooth layer is formed by adhesive solidification.
6. the fluorescence filter wheel according to claim any one of 1-5, it is characterised in that the filtering film is notch filter
Film.
7. a kind of light-source system, it is characterised in that including described in illuminating source, drive device and claim any one of 1-6
Fluorescence filter wheel, the illuminating source is used to produce blue light, and the fluorescence filter wheel is arranged at the indigo plant that the illuminating source is produced
In the light path of light, the drive device is used to drive the fluorescence filter wheel to rotate.
8. light-source system according to claim 7, it is characterised in that the drive device is motor.
9. a kind of optical projection system, it is characterised in that including the light-source system described in claim 7 or 8, the first optical system, anti-
Mirror and the second optical system are penetrated, first optical system, the speculum and second optical system are set in turn in institute
State between illuminating source and the fluorescence filter wheel.
10. optical projection system according to claim 9, it is characterised in that first optical system includes what is set gradually
First convex lens, concavees lens and diffusion sheet, second optical system include the second convex lens, the 3rd convex lens set gradually
And/or the 4th convex lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710197690.8A CN107065411A (en) | 2017-03-29 | 2017-03-29 | Fluorescence filter wheel and its light-source system, optical projection system |
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| CN201710197690.8A CN107065411A (en) | 2017-03-29 | 2017-03-29 | Fluorescence filter wheel and its light-source system, optical projection system |
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| CN109471318A (en) * | 2017-09-07 | 2019-03-15 | 扬明光学股份有限公司 | Projector |
| WO2020042672A1 (en) * | 2018-08-28 | 2020-03-05 | 青岛海信激光显示股份有限公司 | Fluorescence conversion assembly, laser light source device, and laser projection system |
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Application publication date: 20170818 |