CN106949383A - A kind of illuminator of utilization LIF - Google Patents
A kind of illuminator of utilization LIF Download PDFInfo
- Publication number
- CN106949383A CN106949383A CN201710214400.6A CN201710214400A CN106949383A CN 106949383 A CN106949383 A CN 106949383A CN 201710214400 A CN201710214400 A CN 201710214400A CN 106949383 A CN106949383 A CN 106949383A
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- China
- Prior art keywords
- face
- convex lens
- total reflection
- component
- lif
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
Abstract
The invention discloses a kind of illuminator of utilization LIF, including concentrating component, total reflection component, the second convex lens, compensation component and reflective flourescent sheet；Laser is converged after the concentrating component, component and it is totally reflected subsequently into the total reflection, subsequently enter second convex lens, and convergence is irradiated to the reflective flourescent sheet, excite the reflective flourescent sheet to produce fluorescence, the fluorescence enters the total reflection component after second convex lens, component outgoing is compensated subsequently into the compensation component and from described, wherein, the fluorescent edge light is less than the angle of total reflection in the incidence angle of the compensation component.Compared to prior art, the present invention is using the illuminator of LIF due to adding the second convex lens between the total reflection prism and the reflective flourescent sheet, the angle of divergence of fluorescence is reduced, the utilization rate of fluorescent edge light is improved, with wide market prospects.
Description
Technical field
The present invention relates to laser Induced Fluorescence Technology field, more particularly to a kind of illumination system of utilization LIF
System.
Background technology
The advantages of laser Induced Fluorescence Technology is because of its high brightness, low-loss, fast response time lighting field increasingly by
It is also more and more wider using scope to attention.Laser light incident mode is wherein pressed, flourescent sheet is divided into again reflective fluorescence and transmission-type
Flourescent sheet, transmission-type flourescent sheet has radiating not enough and the risk of direct projection is passed through compared with light laser, there is hidden danger in fields such as commercializations.Instead
The formula flourescent sheet of penetrating does not have these shortcomings of transmission-type, but at present only using being combined for being made up of total reflection prism and compensating prism
Prism, because the dispersion angle that prism receives light is excessive, causing the utilization ratio of rim ray reduces.
The content of the invention
In view of the shortcomings of the prior art, the present invention is intended to provide one kind can effectively reduce the angle of divergence, fluorescence profit is effectively improved
With the illuminator of the utilization LIF of rate.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of illuminator of utilization LIF, including concentrating component, total reflection component, the second convex lens, benefit
Repay component and reflective flourescent sheet；
Laser is converged after the concentrating component, component and is totally reflected, is then entered subsequently into the total reflection
Enter second convex lens, and convergence is irradiated to the reflective flourescent sheet, excites the reflective flourescent sheet to produce fluorescence, institute
State fluorescence and enter the total reflection component after second convex lens, subsequently into the compensation component and from the compensation
Component outgoing, wherein, the fluorescent edge light is less than the angle of total reflection in the incidence angle of the compensation component.
As a further improvement on the present invention, the concentrating component is the first convex lens, and the total reflection component is to be all-trans
Prism is penetrated, the compensation component is compensating prism, and first convex lens include the first face and the second face, the total reflection prism
Including the 3rd face, fourth face and the 5th face, the 3rd face, fourth face and the 5th face are plane, the 3rd face and fourth face
Between angle be more than or equal to the angle of total reflection, second convex lens include the 6th face and the 7th face, and the compensating prism includes
Octahedral and the 9th face, the octahedral and the 9th face are plane, are provided between the 7th face and the reflective flourescent sheet
Second gap, is provided with third space between the fourth face and the octahedral；
Specifically, laser enters first convex lens by first face incidence, from second face outgoing, then from
3rd face enters the total reflection prism, and is totally reflected in the fourth face, then after the 5th face outgoing,
Second convex lens are entered by the 6th face, enter second gap from the 7th face outgoing, and convergence is irradiated to
The reflective flourescent sheet is induced to produce fluorescence on the reflective flourescent sheet, the fluorescence is by second gap by described
7th face enters second convex lens, enters the total reflection prism from the 6th face outgoing and by the 5th face, connects
From the fourth face outgoing and enter the compensating prism by the third space from the octahedral, finally from described the
Nine face outgoing；
Wherein, the refractive index of second convex lens is adjusted, the size in second gap is adjusted, the 6th face is adjusted
With the radian in the 7th face, incidence angle of the fluorescent edge light on the fourth face is set to be less than the angle of total reflection.
As a further improvement on the present invention, the 6th face is described raised provided with the tenth face, the described tenth provided with projection
Face is plane, and the laser enters second convex lens by the tenth face.
As a further improvement on the present invention, the tenth face it is parallel with the 5th face and between be provided with the first gap.
As a further improvement on the present invention, the 6th face is provided with groove, is provided with the tenth face in the groove, and described the
Ten faces are plane, and the laser enters second convex lens by the tenth face.
As a further improvement on the present invention, the tenth face it is parallel with the 5th face and between be provided with the first gap.
As a further improvement on the present invention, the fourth face is parallel with the octahedral.
As a further improvement on the present invention, the 5th face is parallel with the 9th face.
As a further improvement on the present invention, the 5th face is parallel with the reflective flourescent sheet.
As a further improvement on the present invention, the angle of the 3rd face and fourth face is 35 ° to 55 °, the fourth face
Angle with the 5th face is 1 ° to 41 °.
Compared to prior art, the present invention using the illuminator of LIF due in the total reflection prism and
The second convex lens are added between the reflective flourescent sheet, the angle of divergence of fluorescence is reduced, the profit of fluorescent edge light is improved
With rate, with wide market prospects.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the present invention above and other objects, features and advantages can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Fig. 1 is that the light for being used for LIF in the embodiment of the present invention reflects the schematic diagram of composite prism.
Description of symbols：10th, the first convex lens；11st, the first face；12nd, the second face；20th, total reflection prism；21st, the 3rd face；
22nd, fourth face；23rd, the 5th face；30th, the second convex lens；31st, the 6th face；32nd, the 7th face；33rd, the tenth face；40th, reflective fluorescence
Piece；41st, octahedral；42nd, the 9th face；50th, reflective flourescent sheet；60th, the first gap；70th, the second gap；80th, third space.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further：
As shown in figure 1, the illuminator of the utilization LIF includes：First convex lens 10, total reflection prism
20th, the second convex lens 30, compensating prism 40 and reflective flourescent sheet 50, it is preferred that the total reflection prism 20 and compensating prism
40 materials are identical, and Refractive Index of Material is 1.45 to 2, and the focal lengths of first convex lens 10 is 20mm to 50mm, and described first is convex
Lens 10 include including the 3rd face 21, the face of fourth face 22 and the 5th on the first face 11 and the second face 12, the total reflection prism 20
23, first face 11 is convex surface, and second face 12 is plane, and the 3rd face 21 is plane, and second plane 12 is consolidated
Due to the 3rd plane 21, the angle between the 3rd face 21 and fourth face 22 is more than or equal to the angle of total reflection, it is preferred that described the
Three faces 21 and the angle of fourth face 22 are 35 ° to 55 °, and the angle in the face 23 of fourth face 22 and the 5th is 1 ° to 41 °, described the
On four sides 22 and the 5th face 23 be plane, the second convex lens 30 include the 6th face 31 and the 7th face 32, and the compensating prism 40 is provided with
The face 42 of octahedral 41 and the 9th, the face 42 of octahedral 41 and the 9th is plane, the 5th face 23 and the reflective fluorescence
Piece 50 is parallel, and the 5th face 23 is parallel with the 9th face 42, second convex lens 30 and the reflective flourescent sheet 50
Between be provided with the second gap 70, the fourth face 22 it is parallel with the octahedral 41 and between be provided with third space 80, wherein, institute
The angle of divergence that the second convex lens 30 reduce fluorescence is stated, the utilization rate of fluorescent edge light is improved.
Wherein, the refractive index of second convex lens 30 is adjusted, the size in second gap 50 is adjusted, described the is adjusted
Six faces 31 and the radian in the 7th face 32, can be less than incidence angle of the fluorescent edge light on the fourth face 22 and be all-trans
Firing angle.
In the present embodiment, the 6th face 31 is provided with projection, and projection is provided with the tenth face 33, and the tenth face 33 is plane, the tenth
Face 33 it is parallel with the 5th face 23 and between be provided with the first gap 60, the laser enters the by the first gap 60 by the tenth face 33
Two convex lens 30, in another embodiment of the invention, the 6th face 31 are provided with groove, the groove the tenth face 33 that is provided with,
Tenth face 33 is plane, the tenth face 33 it is parallel with the 5th face 23 and between be provided with the first gap 60, the laser passes through between first
Gap 60 enters second convex lens 30 by the tenth face 33, wherein, the tenth face 33 reduces the laser in the second convex lens 30
On incidence angle, the hot spot for making laser converge on the reflective flourescent sheet 50 is smaller, it is preferred that first gap 60,
Second gap 70 and the 3rd space 80 are air-gap, and first gap 60, the second gap 70 and the 3rd space 80 are more than
0.001mm。
In the present embodiment, the 7th face 32 is plane, and the 7th face 32 is parallel with the reflective flourescent sheet 50,
In other embodiments of the invention, the 7th face 32 can be concave surface or convex surface.
Specifically, laser enters first convex lens 10 by first face 11 is incident, from the outgoing of the second face 12,
Then enter the total reflection prism 20 from the 3rd face 21, and be totally reflected in the fourth face 22, then described
5th face 23 enters first gap 60 after reflecting, and enters second convex lens 30 by the 9th face 33, from institute
The outgoing of the 7th face 32 is stated to be irradiated on the reflective flourescent sheet 50 into second gap 70, and convergence and induce the reflection
Formula flourescent sheet 50 produces fluorescence, and the fluorescence enters second convex lens by second gap 70 by the 7th face 32
30, enter the total reflection prism 20 from the outgoing of the 6th face 31 and by the 5th face 23, then from the fourth face 22
Outgoing simultaneously enters the compensating prism 40 by the third space 80 from the octahedral 41, finally goes out from the 9th face 42
Penetrate, wherein, by adjusting the refractive index of second convex lens 30, the size in second gap 70 is adjusted, described the is adjusted
Six faces 31 and the radian in the 7th face 32, make incidence angle of the fluorescence on the fourth face be less than the angle of total reflection.
The refractive index of the total reflection prism 20 and compensating prism 30 is determined first, is then calculated between air dielectric
The angle of total reflection, if for example, the refractive index n=1.517 of the total reflection prism 20 and compensating prism 30, first gap 60,
Second gap 70 and the 3rd space 80 are air-gap, then obtain the angle of total reflection using total reflection formula for 41.2 °, it is assumed that described glimmering
Incidence angle of the light rim ray in the 5th face 23 is 23 °, then obtains the fluorescent edge light in the 5th face according to the law of refraction
23 angle of emergence is 15 °, and the laser is totally reflected in fourth face 22, then laser is more than or equal in the incidence angle of fourth face 22 and is all-trans
41.2 degree of firing angle, if laser is precisely 41.2 ° in the incidence angle of fourth face 22, i.e. the angle of the 3rd face 21 and fourth face 22 is
41.2 °, then the angle in the face 23 of fourth face 22 and the 5th is 41.2 ° -15 °=26.2 °.
Compared to prior art, the present invention using the illuminator of LIF due in the total reflection prism and
The second convex lens are added between the reflective flourescent sheet, the angle of divergence of fluorescence is reduced, the profit of fluorescent edge light is improved
With rate, with wide market prospects.
For a person skilled in the art, technical scheme that can be as described above and design, make other each
It is kind corresponding to change and deform, and all these change and deformation should all belong to the protection model of the claims in the present invention
Within enclosing.
Claims (10)
1. a kind of illuminator of utilization LIF, it is characterised in that：Including concentrating component, total reflection component, second
Convex lens, compensation component and reflective flourescent sheet；
Laser is converged after the concentrating component, component and is totally reflected subsequently into the total reflection, is subsequently entered institute
The second convex lens are stated, and convergence is irradiated to the reflective flourescent sheet, excites the reflective flourescent sheet to produce fluorescence, it is described glimmering
Light enters the total reflection component after second convex lens, subsequently into the compensation component and from the compensation component
Outgoing, wherein, the fluorescent edge light is less than the angle of total reflection in the incidence angle of the compensation component.
2. the illuminator of LIF is utilized as claimed in claim 1, it is characterised in that：The concentrating component is the
One convex lens, the total reflection component is total reflection prism, and the compensation component is compensating prism, and first convex lens include
First face and the second face, the total reflection prism include the 3rd face, fourth face and the 5th face, the 3rd face, fourth face and the
Five faces are plane, and angle between the 3rd face and fourth face is more than or equal to the angle of total reflection, and second convex lens include the
Six faces and the 7th face, the compensating prism include octahedral and the 9th face, and the octahedral and the 9th face are plane, the described 7th
The second gap is provided between face and the reflective flourescent sheet, third space is provided between the fourth face and the octahedral；
Specifically, laser enters first convex lens by first face incidence, from second face outgoing, then from described
3rd face enters the total reflection prism, and is totally reflected in the fourth face, then after the 5th face outgoing, by institute
The 6th face is stated into second convex lens, enters second gap from the 7th face outgoing, and converge be irradiated to it is described
The reflective flourescent sheet is induced to produce fluorescence on reflective flourescent sheet, the fluorescence is by second gap by the described 7th
Face enter second convex lens, from the 6th face outgoing and by the 5th face enter the total reflection prism, then from
The fourth face outgoing simultaneously enters the compensating prism by the third space from the octahedral, finally from the 9th face
Outgoing；
Wherein, the refractive index of second convex lens is adjusted, the size in second gap is adjusted, the 6th face and the is adjusted
The radian in seven faces, makes incidence angle of the fluorescent edge light on the fourth face be less than the angle of total reflection.
3. the illuminator of LIF is utilized as claimed in claim 2, it is characterised in that：6th face is provided with convex
Rise, described raised provided with the tenth face, the tenth face is plane, and the laser enters second convex lens by the tenth face
Mirror.
4. the illuminator of LIF is utilized as claimed in claim 3, it is characterised in that：Tenth face with it is described
5th face it is parallel and between be provided with the first gap.
5. the light for LIF reflects composite prism as claimed in claim 2, it is characterised in that：Described 6th
Face is provided with groove, the groove the tenth face that is provided with, and the tenth face is plane, and the laser enters described by the tenth face
Second convex lens.
6. the illuminator of LIF is utilized as claimed in claim 5, it is characterised in that：Tenth face with it is described
5th face it is parallel and between be provided with the first gap.
7. the illuminator of the utilization LIF as described in claim 1 to 6 is any, it is characterised in that：Described 4th
Face is parallel with the octahedral.
8. the illuminator of the utilization LIF as described in claim 1 to 6 is any, it is characterised in that：Described 5th
Face is parallel with the 9th face.
9. the illuminator of the utilization LIF as described in claim 1 to 6 is any, it is characterised in that：Described 5th
Face is parallel with the reflective flourescent sheet.
10. the light for LIF as described in claim 1 to 6 is any reflects composite prism, it is characterised in that：
The angle of 3rd face and fourth face is 35 ° to 55 °, and the angle in the fourth face and the 5th face is 1 ° to 41 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214400.6A CN106949383B (en) | 2017-04-01 | 2017-04-01 | Illumination system utilizing laser to induce fluorescence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214400.6A CN106949383B (en) | 2017-04-01 | 2017-04-01 | Illumination system utilizing laser to induce fluorescence |
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| Publication Number | Publication Date |
|---|---|
| CN106949383A true CN106949383A (en) | 2017-07-14 |
| CN106949383B CN106949383B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710214400.6A Active CN106949383B (en) | 2017-04-01 | 2017-04-01 | Illumination system utilizing laser to induce fluorescence |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609853A (en) * | 2022-03-22 | 2022-06-10 | 青岛海信激光显示股份有限公司 | Laser light source system and projection equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106949383B (en) | 2023-03-21 |
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Effective date of registration: 20180814 Address after: 242000 the 5 floor of B9 science and Technology Park, Xuancheng economic and Technological Development Zone, Anhui. Applicant after: ANHUI RENHE PHOTOELECTRIC TECHNOLOGY Co.,Ltd. Address before: 310000 611-2, room 4, 998 West Wen Yi Road, Wuchang Street, Yuhang District, Hangzhou, Zhejiang. Applicant before: HANGZHOU YOUREN PHOTOELECTRIC TECHNOLOGY CO.,LTD. |
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