CN108803212A - Wavelength conversion devices, illuminating source and projection device - Google Patents
Wavelength conversion devices, illuminating source and projection device Download PDFInfo
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- CN108803212A CN108803212A CN201710286467.0A CN201710286467A CN108803212A CN 108803212 A CN108803212 A CN 108803212A CN 201710286467 A CN201710286467 A CN 201710286467A CN 108803212 A CN108803212 A CN 108803212A
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- wavelength conversion
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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
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Optical Filters (AREA)
- Projection Apparatus (AREA)
Abstract
A kind of Wavelength conversion devices, illuminating source and projection device, the Wavelength conversion devices include the wavelength conversion body for the exciting light of reception to be at least partially converted into stimulated light, the exciting light is injected from the first end of the wavelength conversion body, the stimulated light is projected from the second end of the wavelength conversion body, it further include dichroic piece, the dichroic piece perpendicular to the wavelength conversion body optical axis direction, and set on the wavelength conversion body the second end.Wavelength conversion devices, illuminating source and projection device provided by the invention are by being provided perpendicular to the dichroic piece of optical axis direction in the second end of wavelength conversion body, non-switched stimulated light is reflected back in wavelength conversion body to recycle again by dichroic piece generates stimulated light, improves the light conversion efficiency of wavelength conversion body.
Description
Technical field
The present invention relates to lighting source field, especially a kind of Wavelength conversion devices, illuminating source and projection device.
Background technology
Higher source luminance is usually applied to the fields such as light of stage illumination, spotlighting, digital light projection.Higher source luminance
The exciting light sent out by laser projects after being converted into the longer stimulated light of wavelength in wavelength convert body, to obtain height
The emergent light of brightness.
The exciting light that existing higher source luminance is sent out is guided by optical coupling element to wavelength convert body.Inventor exists
Realize higher source luminance during find, into wavelength convert body in exciting light will not all be converted to stimulated light injection, not
The exciting light of conversion can directly be projected out of wavelength convert body in company with stimulated light, cause the transfer efficiency of the stimulated light of light source compared with
Low, brightness is not high.
Invention content
In view of the foregoing, it is necessary to which a kind of Wavelength conversion devices, illuminating source and projection device are provided, it is intended to solve existing
There is the lower defect of the transfer efficiency of the exciting light of light source.
For this purpose, present invention firstly provides a kind of Wavelength conversion devices, include exciting light for that will receive at least partly
The wavelength conversion body of stimulated light is converted to, the exciting light is injected from the first end of the wavelength conversion body, the stimulated light
It is projected from the second end of the wavelength conversion body, further includes dichroic piece, the dichroic piece is perpendicular to the wavelength convert
The optical axis direction of body, and set on the second end of the wavelength conversion body.
Wavelength conversion devices according to the present invention, the wavelength conversion body use YAG:Ce3 and yellow single crystal or pottery
The mixing material of porcelain is made, and the dichroic piece is using transmission yellow light and reflects the material of blue light and is made, alternatively, the wavelength
Conversion body uses LuAG:The mixing material of Ce3 and green monocrystalline or crystalline ceramics are made, and the dichroic piece is green using transmiting
The light and material for reflecting blue light is made.
Wavelength conversion devices according to the present invention, further include blue light modification piece, and the blue light modifies piece perpendicular to institute
The optical axis direction of wavelength conversion body is stated, and set on the first end of the wavelength conversion body.
Wavelength conversion devices according to the present invention, the optical axis of the parallel wavelength conversion body of the wavelength conversion body
At least one side in direction is equipped with reflectance coating.
Wavelength conversion devices according to the present invention, the reflectance coating are that dielectric reflection film, aluminium mirror coating or silver are anti-
It penetrates one or more in film.
Wavelength conversion devices according to the present invention, further include several thermal conductive substrates, and the thermal conductive substrate is set to described
At least one side of the optical axis direction for being parallel to the wavelength conversion body of wavelength conversion body.
The material of Wavelength conversion devices according to the present invention, the thermal conductive substrate is copper, aluminium alloy, aluminium nitride, carbon
It is one or more in SiClx and aluminium oxide ceramics.
Wavelength conversion devices according to the present invention, the optical axis of the parallel wavelength conversion body of the wavelength conversion body
At least one side in direction passes through polishing treatment.
Wavelength conversion devices according to the present invention, the first end and the second end of the wavelength conversion body at least it
One lateral surface is equipped with anti-reflection film.
Wavelength conversion devices according to the present invention, the blue light modification piece are plated on the lateral surface of the first end,
And/or the dichroic piece is plated on the lateral surface of the second end.
Wavelength conversion devices according to the present invention, the first end of blue light the modification piece and the wavelength conversion body
Between have between the air gap and/or the dichroic piece and the second end of the wavelength conversion body have the air gap.
Further include above-mentioned Wavelength conversion devices the present invention also provides a kind of illuminating source, including laser, it is described to swash
Light device is set to the first end of the Wavelength conversion devices.
According to illuminating source provided by the invention, the laser is blue laser, and the blue laser is gas
One kind in laser, solid state laser, semiconductor laser.
In addition, invention further provides a kind of projection device, there is above-mentioned illuminating source.
Compared to the prior art, Wavelength conversion devices provided by the invention, illuminating source and projection device pass through in wavelength
The second end of conversion body is provided perpendicular to the dichroic piece of optical axis direction, and non-switched stimulated light is reflected back by dichroic piece
It is recycled again in wavelength convert body and generates stimulated light, improve the light conversion efficiency of wavelength conversion body.
Further, Wavelength conversion devices provided by the invention, illuminating source and projection device in first end also by setting
The blue light set perpendicular to optical axis direction modifies piece, and the stimulated light by shooting angle more than 90 ° is reflected back in wavelength conversion body, and
The stimulated light less than 90 ° is reflected back in wavelength conversion body by the reflectance coating for being arranged in parallel optical axis direction, improves wavelength
The light utilization efficiency of conversion body.
Description of the drawings
Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, general for this field
For logical technical staff, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram for the Wavelength conversion devices that first embodiment of the invention provides.
Fig. 2 is the structural schematic diagram for the Wavelength conversion devices that second embodiment of the invention provides.
Fig. 3 is the structural schematic diagram for the Wavelength conversion devices that third embodiment of the invention provides.
Fig. 4 is the structural schematic diagram for the Wavelength conversion devices that fourth embodiment of the invention provides.
Fig. 5 is the structural schematic diagram for the Wavelength conversion devices that fifth embodiment of the invention provides.
Fig. 6 is the structural schematic diagram for the illuminating source that sixth embodiment of the invention provides.
Main element symbol description
Following specific implementation mode will be further illustrated the present invention in conjunction with above-mentioned attached drawing.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention will be described in detail.It should be noted that in the absence of conflict, presently filed embodiment and reality
The feature applied in mode can be combined with each other.Many details are elaborated in the following description in order to fully understand this hair
Bright, described embodiment is only some embodiments of the invention, rather than whole embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Mode shall fall within the protection scope of the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
In the various embodiments of the invention, it is not intended to limit the present invention for ease of description, present patent application specification
And the term " connection " used in claims is not limited to physics or mechanical connection, but may include electricity
Property connection, either directly or indirectly." upper ", " under ", " lower section ", " left side ", " right side " etc. be only used for indicating opposite position
Relationship is set, after the absolute position for being described object changes, then the relative position relation also correspondingly changes.
Inventor has found during realizing Wavelength conversion devices, most of after exciting light enters in wavelength convert body
Stimulated light is converted to, but has small part exciting light and is not converted into stimulated light (residual exciting light), reduces wavelength convert
The light efficiency of device.In addition, the stimulated light that exciting light generates after entering in wavelength convert body turns according to the direction propagated and wavelength
The angle changed between the optical axis direction of body can be divided into first kind light, the second class light and third class light.The propagation side of first kind light
To parallel with the optical axis direction of wavelength conversion body, the second end and dichroic piece through the wavelength conversion body project away.The
Angle between two class light and the optical axis direction of wavelength conversion body is less than 90 °；The optical axis direction of third class light and wavelength conversion body
Between angle be greater than or equal to 90 °.
Fig. 1 is the structural schematic diagram for the Wavelength conversion devices that first embodiment of the invention provides, as shown in Figure 1, the wavelength
Switching device includes wavelength conversion body 10 and dichroic piece 20.The exciting light 30 that wavelength conversion body 10 is used to receive is at least partly
Be converted to stimulated light.Wherein, the exciting light 30 is injected from the first end of the wavelength conversion body 10, and the stimulated light is from institute
The second end for stating wavelength conversion body 10 projects.The dichroic piece 20 perpendicular to the wavelength conversion body 10 optical axis direction,
And set on the second end of the wavelength conversion body 10.In present embodiment, the dichroic piece 20 and the wavelength convert
There is certain distance so that between dichroic piece 20 and the second end of the wavelength conversion body 10 between the second end of body 10
With a air gap.
In present embodiment, the material of the wavelength conversion body 10 is YAG:The mixing material of Ce3 and yellow single crystal or ceramics
Material is made, and the dichroic piece 20 is made for transmiting yellow light and reflecting the material of blue light.In other embodiment,
The material of the wavelength conversion body 10 may be LuAG:The mixing material of Ce3 and green monocrystalline or crystalline ceramics are made, institute
It states dichroic piece 20 and is made by transmiting green light and reflecting the material of blue light.In addition, the first end of the wavelength conversion body 10
It is equipped with anti-reflection film 11 with the lateral surface of at least one the second end, is preferably equipped in the lateral surface of first end and the second end
Anti-reflection film 11, exciting light 30 enters from the anti-reflection film 11 of first end in wavelength conversion body 10, from the anti-reflection film 11 of the second end
Projection is gone out, and the transmissivity of wavelength conversion body 10 is improved.
When work, exciting light 30 described in exciting light 30 enters from the first end of the wavelength conversion body 10, most of to swash
Shine and 30 be converted to stimulated light in the wavelength conversion body 10, stimulated light along wavelength conversion body 30 optical axis direction from the wave
The second end of long conversion body 10 projects (first kind light 31 shown in Fig. 1).Small part exciting light 30 is in wavelength conversion body 10
When being inside not converted into stimulated light (residual exciting light 32) and being transmitted outward from the second end, wavelength is reflected back by dichroic piece 20
In conversion body 10 (the second class of aftermentioned abbreviation light 34) again excitation wavelength conversion body 10 generate stimulated light.
Wavelength conversion devices, illuminating source and the projection device that present embodiment provides pass through the of wavelength conversion body 10
Two end sets have the dichroic piece 20 perpendicular to optical axis direction, dichroic piece 20 that non-switched exciting light is reflected back wavelength and is turned
It changes to recycle again in body 10 and generates stimulated light, improve the light conversion efficiency of wavelength conversion body 10.
Fig. 2 is the structural schematic diagram for the Wavelength conversion devices that second embodiment of the invention provides.Second embodiment party
The main distinction of formula and first embodiment is that second embodiment increases blue light modification piece 40.It should be noted that
In the range of the spirit or essential attributes of the present invention, each concrete scheme suitable for first embodiment can also fit accordingly
For in second embodiment, for the sake of saving space and avoiding repetition, details are not described herein again.
As shown in Fig. 2, the Wavelength conversion devices further include blue light modification piece 40, the blue light modifies piece 40 perpendicular to described
The optical axis direction of wavelength conversion body 10, and set on the first end of the wavelength conversion body 10.In present embodiment, the indigo plant
Light, which is modified, has certain distance between piece 40 and the first end of the wavelength conversion body 10 so that blue light modify piece 40 with it is described
There is a air gap between the first end of wavelength conversion body 10.
Third class light 33 is modified when being transmitted to the first end of wavelength conversion body 10 out of wavelength conversion body 10 by blue light
Piece 40 is reflected back in wavelength conversion body 10, is totally reflected in wavelength conversion body 10, after multiple reflections, finally successively from wavelength
The second end and dichroic piece 20 of conversion body 10 project away.
In the present embodiment, the third class light 33 in wavelength conversion body 10 is reflected back in wavelength conversion body 10 and the external world
Between interface total reflection occur utilized again so as to the third class light 33 that will reflect back into wavelength conversion body 10.In order to
Improve the total reflection efficiency of wavelength conversion body 10, preferably the optical axis side to the parallel wavelength conversion body 10 of wavelength conversion body 10
To at least one side pass through polishing treatment.After polishing treatment, the wavelength convert is parallel in wavelength conversion body 10
The total reflectivity of the side of the optical axis direction of body 10 reaches 92% or more, effectively increases the light utilization ratio of wavelength convert rate,
And technique is simpler, and cost is lower.
The Wavelength conversion devices that this second embodiment provides in addition to being previously mentioned in the first embodiment
Except technique effect, also above-mentioned third class light 33 is reflected back again in wavelength conversion body 10 by blue light modification piece 40,
It is projected away from the second end and dichroic piece 20 after multiple reflections, improves the utilization ratio of light and the brightness of light source.
Fig. 3 is the structural schematic diagram for the Wavelength conversion devices that third embodiment of the invention provides.The third embodiment party
The main distinction of formula and second embodiment is that third embodiment increases reflectance coating 50.It should be noted that in this hair
In the range of bright spirit or essential attributes, each concrete scheme suitable for second embodiment can also be suitable for accordingly
In third embodiment, for the sake of saving space and avoiding repetition, details are not described herein again.
As shown in figure 3, the Wavelength conversion devices further include reflectance coating 50, reflectance coating 50 is set to the wavelength conversion body 10
At least one side of the optical axis direction of the parallel wavelength conversion body 10, preferably in the optical axis side of the parallel wavelength conversion body 10
To four sides be both provided with reflectance coating 50.The reflectance coating 50 can be dielectric reflection film, aluminium mirror coating or silver reflection
It is one or more in film.The material of the reflectance coating 50 of each side can be identical, can not also be identical, and those skilled in the art can
To be configured as needed.
The Wavelength conversion devices that this third embodiment provides in addition to being previously mentioned in this second embodiment
Except technique effect, also by the second above-mentioned class light 34, i.e. angle between the direction of propagation and optical axis direction is less than 90 ° of light
Multiple reflections through reflectance coating 50 transmit away from wavelength conversion body 10 and dichroic piece 20.Also, it is anti-by blue light modification piece 40
The third class light 33 being emitted back towards in wavelength conversion body 10 can also be by 50 multiple reflections of reflectance coating, again from wavelength conversion body 10 and two
It is transmitted away to color chips 20, effectively increases the utilization ratio of light and the brightness of light source.
Fig. 4 is the structural schematic diagram for the Wavelength conversion devices that fourth embodiment of the invention provides.4th embodiment party
The main distinction of formula and third embodiment is that the 4th embodiment increases thermal conductive substrate 60.It should be noted that at this
In the range of the spirit or essential attributes of invention, each concrete scheme suitable for second embodiment can also be applicable in accordingly
In third embodiment, for the sake of saving space and avoiding repetition, details are not described herein again.
As shown in figure 4, the Wavelength conversion devices further include several thermal conductive substrates 60, the thermal conductive substrate 60 is set to the wave
At least one side of the optical axis direction for being parallel to the wavelength conversion body 10 of long conversion body 10.Such as thermal conductive substrate 60 can be
1,2,3 or 4, it is respectively arranged on the side for being parallel to optical axis direction of the wavelength conversion body 10.The wavelength turns
Body 10 is changed to connect with the thermal conductive substrate 60 by the reflectance coating 50.The material of the thermal conductive substrate 60 is copper, aluminium alloy, nitrogen
Change one or more in aluminium, silicon carbide and aluminium oxide ceramics.In present embodiment, thermal conductive substrate 60 is one, is arranged in wave
The lower section of long conversion body 10 is connect in the lower section of wavelength conversion body 10 with reflectance coating 50, but the quantity of thermal conductive substrate 60 can also
It is multiple, i.e., is connected with thermal conductive substrate 60 in multiple reflectance coatings 50 for being parallel to optical axis direction.
Wavelength conversion devices that this 4th embodiment provides in addition to being previously mentioned in the third embodiment
Except technique effect, one or more thermal conductive substrates 60 that wavelength conversion body 10 is connected to by reflectance coating 50 are also provided with, it can
It is conducted with the heat for being excited to generate by wavelength conversion body 10, it is thus possible to which the exciting light 30 for bearing higher power excites, bright
Degree and stability higher.
Fig. 5 is the structural schematic diagram for the Wavelength conversion devices that fifth embodiment of the invention provides.5th embodiment party
The main distinction of formula and the 4th embodiment is, blue light is modified piece 40 in the 5th embodiment and dichroic piece 20 is plated in wave
The lateral surface of the first end of long conversion body 10 and the lateral surface of the second end.It should be noted that the present invention spirit or
In the range of essential characteristic, each concrete scheme suitable for the 4th embodiment can also be suitable for the 5th embodiment party accordingly
In formula, for the sake of saving space and avoiding repetition, details are not described herein again.
As shown in figure 5, the blue light modification piece 40 is plated on the lateral surface of the first end, the dichroic piece 20 is plated on
The lateral surface of the second end.Thus there is no the air gap, dichroic piece 20 between blue light modification 40 wavelength conversion body 10 of piece
Also without the air gap between wavelength conversion body 10, and the lateral surface in first end and the second end is no longer needed to add
Anti-reflection film 11, this spline structure is more compact, advantageously reduces the volume and production cost of Wavelength conversion devices.
Fig. 6 is the structural schematic diagram for the illuminating source that sixth embodiment of the invention provides.As shown in fig. 6, the illuminating source
Including laser 70 and Wavelength conversion devices.Wherein, the Wavelength conversion devices are to be related in the above-mentioned first to the 5th embodiment
And Wavelength conversion devices, the laser 70 be set to the Wavelength conversion devices first end.The present invention spirit or
In the range of essential characteristic, each concrete scheme suitable for the first to the 5th embodiment can also be suitable for the 6th accordingly
In embodiment, for the sake of saving space and avoiding repetition, details are not described herein again.In present embodiment, the laser 70
For blue laser, the blue laser can be one kind in gas laser, solid state laser, semiconductor laser.
Laser 70 sends out the exciting light 30 of blue, enters in wavelength conversion body 10 from first end and is converted to stimulated light.
Finally, embodiment of the present invention additionally provides a kind of projection device, which has above-mentioned 6th embodiment party
Illuminating source disclosed in formula.
Wavelength conversion devices, illuminating source and the projection device that embodiment of the present invention provides pass through in wavelength conversion body 10
The second end be provided perpendicular to the dichroic piece 20 of optical axis direction, dichroic piece 20 is by non-switched stimulated light reflection echo
It is recycled again in long conversion body 10 and generates stimulated light, improve the light conversion efficiency of wavelength conversion body 10.
Further, Wavelength conversion devices, illuminating source and the projection device that embodiment of the present invention provides are also by the
The blue light modification piece 40 perpendicular to optical axis direction is arranged in one end, and shooting angle is more than to 90 ° of stimulated light (i.e. above-mentioned third
Class light) it is reflected back in wavelength conversion body 10, and the reflectance coating 50 by being arranged in parallel optical axis direction will be excited less than 90 °
Light (the second i.e. above-mentioned class light) is reflected back in wavelength conversion body 10, improves the light utilization efficiency of wavelength conversion body 10.
In several specific implementation modes provided by the present invention, it should be understood that disclosed device, mechanism can lead to
Other modes are crossed to realize.It is obvious to a person skilled in the art that the present invention is not limited to the thin of above-mentioned exemplary embodiment
Section, and without departing from the spirit or essential characteristics of the present invention, the present invention can be realized in other specific forms.
Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, model of the invention
It encloses and is indicated by the appended claims rather than the foregoing description, it is intended that meaning and model in the equivalent requirements of the claims will be fallen
All changes in enclosing include within the present invention.Any reference numeral in claim should not be considered as to the involved power of limitation
Profit requires.Furthermore, it is to be understood that one word of " comprising " is not excluded for other units or step, odd number is not excluded for plural number.The first, the second equal words
It is used to indicate names, and does not represent any particular order.
Embodiment of above is merely illustrative of the technical solution of the present invention and unrestricted, although with reference to the above preferable embodiment party
Formula describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to technical scheme of the present invention
It modifies or equivalent replacement should not all be detached from the spirit and scope of technical solution of the present invention.
Claims (14)
1. a kind of Wavelength conversion devices include the wavelength convert for the exciting light of reception to be at least partially converted into stimulated light
Body, the exciting light from the first end of the wavelength conversion body inject, the stimulated light from the wavelength conversion body second
It projects end, which is characterized in that further include dichroic piece, the dichroic piece is perpendicular to the optical axis side of the wavelength conversion body
To, and set on the second end of the wavelength conversion body.
2. Wavelength conversion devices as described in claim 1, which is characterized in that the wavelength conversion body uses YAG:Ce3 and Huang
The mixing material of color monocrystalline or ceramics is made, and the dichroic piece is used to transmit yellow light and using the material system of reflection blue light
At；Alternatively, the material of the wavelength conversion body is using LuAG:The mixing material system of Ce3 and green monocrystalline or crystalline ceramics
At the dichroic piece is made by transmission green light and using the material of reflection blue light.
3. Wavelength conversion devices as described in claim 1, which is characterized in that further include blue light modification piece, the blue light modification
Piece perpendicular to the wavelength conversion body optical axis direction, and set on the wavelength conversion body first end.
4. Wavelength conversion devices as described in claim 1, which is characterized in that the parallel wavelength of the wavelength conversion body turns
At least one side for changing the optical axis direction of body is equipped with reflectance coating.
5. Wavelength conversion devices as claimed in claim 4, which is characterized in that the reflectance coating is dielectric reflection film, aluminium reflection
It is one or more in film or silver-colored reflectance coating.
6. Wavelength conversion devices as claimed in claim 4, which is characterized in that further include several thermal conductive substrates, the heat conduction lining
Bottom is set at least one side of the optical axis direction for being parallel to the wavelength conversion body of the wavelength conversion body.
7. Wavelength conversion devices as claimed in claim 6, which is characterized in that the material of the thermal conductive substrate be copper, aluminium alloy,
It is one or more in aluminium nitride, silicon carbide and aluminium oxide ceramics.
8. Wavelength conversion devices as described in claim 1, which is characterized in that the parallel wavelength of the wavelength conversion body turns
At least one side for changing the optical axis direction of body passes through polishing treatment.
9. Wavelength conversion devices as described in claim 1, which is characterized in that the first end of the wavelength conversion body and second
The lateral surface of at least one end is equipped with anti-reflection film.
10. Wavelength conversion devices as claimed in claim 3, which is characterized in that the blue light modification piece is plated on the first end
The lateral surface in portion and/or the dichroic piece are plated on the lateral surface of the second end.
11. Wavelength conversion devices as claimed in claim 3, which is characterized in that the blue light modification piece and the wavelength convert
Have between the air gap and/or the dichroic piece and the second end of the wavelength conversion body between the first end of body
With the air gap.
12. a kind of illuminating source, including laser, which is characterized in that further include such as claim 1-11 any one of them waves
Long switching device, the laser are set to the first end of the Wavelength conversion devices.
13. illuminating source as claimed in claim 12, which is characterized in that the laser is blue laser, the blue light
Laser is one kind in gas laser, solid state laser, semiconductor laser.
14. a kind of projection device, which is characterized in that have illuminating source as described in claim 12 or 13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286467.0A CN108803212A (en) | 2017-04-27 | 2017-04-27 | Wavelength conversion devices, illuminating source and projection device |
| PCT/CN2017/094798 WO2018196196A1 (en) | 2017-04-27 | 2017-07-28 | Wavelength conversion device, illuminating source, and projection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286467.0A CN108803212A (en) | 2017-04-27 | 2017-04-27 | Wavelength conversion devices, illuminating source and projection device |
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| Publication Number | Publication Date |
|---|---|
| CN108803212A true CN108803212A (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710286467.0A Pending CN108803212A (en) | 2017-04-27 | 2017-04-27 | Wavelength conversion devices, illuminating source and projection device |
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| CN (1) | CN108803212A (en) |
| WO (1) | WO2018196196A1 (en) |
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| CN207164448U (en) * | 2017-04-27 | 2018-03-30 | 深圳市光峰光电技术有限公司 | Wavelength conversion devices, illuminating source and projector equipment |
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2017
- 2017-04-27 CN CN201710286467.0A patent/CN108803212A/en active Pending
- 2017-07-28 WO PCT/CN2017/094798 patent/WO2018196196A1/en active Application Filing
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| US20030021098A1 (en) * | 2001-07-27 | 2003-01-30 | Shih-Yuan Chang | Illuminating device adapted to provide a light output with a predetermined polarization state to a projection display |
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| WO2018196196A1 (en) | 2018-11-01 |
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Application publication date: 20181113 |