CN206531009U - A kind of light for LIF reflects composite prism - Google Patents
A kind of light for LIF reflects composite prism Download PDFInfo
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- CN206531009U CN206531009U CN201720082966.3U CN201720082966U CN206531009U CN 206531009 U CN206531009 U CN 206531009U CN 201720082966 U CN201720082966 U CN 201720082966U CN 206531009 U CN206531009 U CN 206531009U
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Abstract
The utility model is related to laser Induced Fluorescence Technology field, disclose a kind of light for LIF and reflect composite prism, including a planoconvex spotlight, one total reflection prism, one compensating prism and a reflective flourescent sheet, the total reflection prism is provided with the first plane, second plane and the 3rd plane, the compensating prism is provided with fourth plane and the 5th plane, the first gap is provided between first plane and the reflective flourescent sheet, the second gap is provided between second plane and the fourth plane, the plane of the planoconvex spotlight is fixedly installed in the 3rd plane.The utility model is used for the light reflection of LIF, and composite prism is simple in construction, technique is easy, and laser can be achieved and fluorescence path is not interfere with each other, with wide market prospects.
Description
Technical field
The utility model is related to laser Induced Fluorescence Technology field, more particularly to a kind of light for LIF
Reflect composite prism.
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 needs to control certain angle, can just make laser and fluorescence path mutual not
Interference, therefore, complicated, cost is higher mostly for existing LIF device.
Utility model content
In view of the shortcomings of the prior art, to aim to provide a kind of simple in construction, cost low and can realize laser for the utility model
Composite prism is reflected with the non-interfering light for LIF in fluorescence path.
To achieve the above object, the utility model is adopted the following technical scheme that：
A kind of light for LIF reflects composite prism, including a planoconvex spotlight, a total reflection prism, one
Compensating prism and a reflective flourescent sheet, the total reflection prism are provided with the first plane, the second plane and the 3rd plane, described
Compensating prism is provided with fourth plane and the 5th plane, is provided between first plane and the reflective flourescent sheet between first
Gap, is provided with the second gap between second plane and the fourth plane, the plane of the planoconvex spotlight is fixedly installed in institute
State the 3rd plane；
Laser passes through the planoconvex spotlight, enters the total reflection prism by the 3rd plane, and flat described second
Face is totally reflected, and is then reflected in first plane, then to converging on the reflective flourescent sheet and induce institute
State reflective flourescent sheet and produce fluorescence, the fluorescence enters the total reflection prism by second plane, flat from described second
Face outgoing simultaneously enters the compensating prism from the fourth plane, finally from the 5th planar exit, wherein, by changing
The angle between the first plane, the second plane and the 3rd plane is stated, changes the focal length of the planoconvex spotlight so that the fluorescence exists
Incidence angle in second plane is less than the angle of total reflection.
As further improvement of the utility model, second plane is parallel with the fourth plane.
As further improvement of the utility model, first plane is parallel with the 5th plane.
As further improvement of the utility model, first plane is parallel with the reflective flourescent sheet.
As further improvement of the utility model, the angle of first plane and the second plane is 1 ° to 16 °, described
The angle of second plane and the 3rd plane is 35 ° to 55 °.
As further improvement of the utility model, the total reflection prism is identical with compensating prism material, material refraction
Rate is 1.45 to 2.
As further improvement of the utility model, the focal length of the planoconvex spotlight is 20mm to 50mm.
As further improvement of the utility model, the width in first gap is 0.1mm to 20mm, described the
The width in two gaps is 0.001mm to 1mm.
As further improvement of the utility model, first gap and the second gap are air-gap.
As further improvement of the utility model, the plane of the planoconvex spotlight is bonded with the 3rd plane.
Compared to prior art, light reflection composite prism that the utility model is used for LIF is simple in construction,
Technique is easy, by changing the angle between each face of the total reflection prism, changes the focal length of the planoconvex spotlight so that glimmering
Incidence angle of the light in second plane is less than the angle of total reflection, and laser can be achieved and fluorescence path is not interfere with each other, with wide
Market prospects.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, and in order to allow above and other purpose of the present utility model, feature
It can be become apparent with advantage, 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 utility model embodiment reflects the front view of composite prism.
Fig. 2 is that the light for being used for LIF in the utility model embodiment reflects the side view of composite prism.
Description of symbols：10th, planoconvex spotlight；11st, convex surface；20th, total reflection prism；21st, the first plane；22nd, the second plane；
23rd, the 3rd plane；30th, compensating prism；31st, fourth plane；32nd, the 5th plane；40th, reflective flourescent sheet；41st, fluorescence visual field
Angle.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further：
It is that the utility model embodiment is used for the light reflection composite prism of LIF, institute as described in Fig. 1 to 2
State includes for the light reflection composite prism of LIF：Planoconvex spotlight 10, total reflection prism 20, the and of compensating prism 30
Reflective flourescent sheet 40, the total reflection prism 20 is provided with the first plane 21, the second plane 22 and the 3rd plane 23, described to mend
Prism 30 is repaid provided with the plane 32 of fourth plane 31 and the 5th, between first plane 21 and the reflective flourescent sheet 40
Provided with the first gap, the second gap is provided between second plane 22 and the fourth plane 31, it is in the present embodiment, described
First gap and the second gap are air-gap, and the plane of the planoconvex spotlight 10 is fixedly installed in the 3rd plane 23, at this
In embodiment, the plane of the planoconvex spotlight 10 is bonded with the 3rd plane 23.In the present embodiment, first plane 21
Parallel with the reflective flourescent sheet 40, the 5th plane 32 is parallel with first plane 21, second plane 22 with
The fourth plane 31 is parallel, and the angle of the plane 22 of the first plane 21 and second is equal to the fourth plane 31 and described the
The angle of five planes 32.
It is preferred that, the angle of the plane 22 of the first plane 21 and second is 1 ° to 16 °, second plane 22 and the 3rd
The angle of plane 23 is 35 ° to 55 °.
It is preferred that, the total reflection prism 20 is identical with the material of compensating prism 30, and Refractive Index of Material is 1.45 to 2.
It is preferred that, the focal length of the planoconvex spotlight 10 is 20mm to 50mm.
It is preferred that, the width in first gap is 0.1mm to 20mm, and the width in second gap is 0.001mm
To 1mm.
Laser is converged after the planoconvex spotlight 10, enters the total reflection prism 20 by the 3rd plane 23, and
It is totally reflected, is then reflected in first plane 21, then incident on described reflective in second plane 22
Flourescent sheet 40 simultaneously induces the reflective flourescent sheet 40 to produce fluorescence, and in the present embodiment, the focus of the planoconvex spotlight 10 exists
On the reflective flourescent sheet 40, the laser is converged on the reflective flourescent sheet 40, and the fluorescence is flat by described second
Face 22 enters the total reflection prism 20, enters the compensation from the outgoing of the second plane 22 and from the fourth plane 31
Prism 30, finally from the outgoing of the 5th plane 32, the compensating prism 30 is used to correct the fluorescence, by adjusting described the
Angle between one plane 21, the second plane 22 and the 3rd plane 23, changes the focal length of the planoconvex spotlight 10, finally makes described
Laser is more than or equal to the angle of total reflection in the incidence angle of second plane 22, while ensureing the fluorescence in second plane
Incidence angle be less than the angle of total reflection, the planoconvex spotlight 10 makes light collection on the flourescent sheet 40 just, final to ensure sharp
Light and fluorescence path are not interfere with each other.
If for example, the refractive index n=1.517 of the total reflection prism 20 and compensating prism 30, first gap and the
Two gaps are air-gap, utilize total reflection formula, you can obtain the angle of total reflection for 41.2 °, then obtain the He of the second plane 22
The angle of 3rd plane 23 is 41.2 °, it is assumed that the fluorescence angle of visual field of needs is 110 °, and half-angle is 55 °, fixed according to refraction
Rule, it is 32.7 ° to obtain fluorescent edge light in the angle of emergence of first plane, you can obtain first plane 21 and second
The angle of plane 22 is 41.2 ° -32.7 °=8.5 °.
Compared to prior art, light reflection composite prism that the utility model is used for LIF is simple in construction,
Technique is easy, by changing the angle between each face of the total reflection prism, changes the focal length of the planoconvex spotlight so that glimmering
Incidence angle of the light in second plane is less than the angle of total reflection, and laser can be achieved and fluorescence path is not interfere with each other, with wide
Market prospects.
For those 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 guarantor of the utility model claim
Within the scope of shield.
Claims (10)
1. a kind of light for LIF reflects composite prism, it is characterised in that：It is all-trans including a planoconvex spotlight, one
Prism, a compensating prism and a reflective flourescent sheet are penetrated, the total reflection prism is provided with the first plane, the second plane and the 3rd
Plane, the compensating prism is provided with fourth plane and the 5th plane, between first plane and the reflective flourescent sheet
Provided with the first gap, the second gap is provided between second plane and the fourth plane, the plane of the planoconvex spotlight is consolidated
Dingan County is loaded on the 3rd plane；
Laser is converged after the planoconvex spotlight, enters the total reflection prism by the 3rd plane, and described second
Plane is totally reflected, and is then refracted into the first gap in first plane, and convergence is irradiated to described reflective glimmering
On mating plate and the reflective flourescent sheet is induced to produce fluorescence, the fluorescence enters institute by the first gap by second plane
Total reflection prism is stated, enters the compensating prism from second planar exit and from the fourth plane, finally from described the
Five planar exits, wherein, by changing the angle between first plane, the second plane and the 3rd plane, change described flat
The focal length of convex lens so that incidence angle of the fluorescence in second plane is less than the angle of total reflection.
2. the light for LIF reflects composite prism as claimed in claim 1, it is characterised in that：Described second
Plane is parallel with the fourth plane.
3. the light for LIF reflects composite prism as claimed in claim 1, it is characterised in that：Described first
Plane is parallel with the 5th plane.
4. the light for LIF reflects composite prism as claimed in claim 1, it is characterised in that：Described first
Plane is parallel with the reflective flourescent sheet.
5. the light for LIF reflects composite prism as claimed in claim 1, it is characterised in that：Described first
The angle of plane and the second plane is 1 ° to 16 °, and the angle of second plane and the 3rd plane is 35 ° to 55 °.
6. the light for LIF reflects composite prism as claimed in claim 1, it is characterised in that：It is described to be all-trans
Penetrate prism identical with compensating prism material, Refractive Index of Material is 1.45 to 2.
7. the light for LIF reflects composite prism as claimed in claim 1, it is characterised in that：The plano-convex
The focal length of lens is 20mm to 50mm.
8. the light for LIF reflects composite prism as claimed in claim 1, it is characterised in that：Described first
The width in gap is 0.1mm to 20mm, and the width in second gap is 0.001mm to 1mm.
9. the light for LIF reflects composite prism as claimed in claim 1, it is characterised in that：Described first
Gap and the second gap are air-gap.
10. the light for LIF reflects composite prism as claimed in claim 1, it is characterised in that：It is described flat
The plane of convex lens is bonded with the 3rd plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720082966.3U CN206531009U (en) | 2017-01-20 | 2017-01-20 | A kind of light for LIF reflects composite prism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720082966.3U CN206531009U (en) | 2017-01-20 | 2017-01-20 | A kind of light for LIF reflects composite prism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206531009U true CN206531009U (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720082966.3U Active CN206531009U (en) | 2017-01-20 | 2017-01-20 | A kind of light for LIF reflects composite prism |
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| CN (1) | CN206531009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838822A (en) * | 2017-01-20 | 2017-06-13 | 杭州有人光电技术有限公司 | A kind of light line reflection composite prism for LIF |
-
2017
- 2017-01-20 CN CN201720082966.3U patent/CN206531009U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838822A (en) * | 2017-01-20 | 2017-06-13 | 杭州有人光电技术有限公司 | A kind of light line reflection composite prism for LIF |
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