CN203825285U - Weak light collector in three-dimensional space - Google Patents
Weak light collector in three-dimensional space Download PDFInfo
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- CN203825285U CN203825285U CN201420163672.XU CN201420163672U CN203825285U CN 203825285 U CN203825285 U CN 203825285U CN 201420163672 U CN201420163672 U CN 201420163672U CN 203825285 U CN203825285 U CN 203825285U
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- Prior art keywords
- mirror
- ellipsoidal
- reflection mirror
- plane mirror
- oval
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- 230000003287 optical effect Effects 0.000 claims abstract description 19
- 210000000664 rectum Anatomy 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001579 optical reflectometry Methods 0.000 claims description 3
- 238000001069 Raman spectroscopy Methods 0.000 abstract description 21
- 239000000126 substance Substances 0.000 abstract 1
- 230000011514 reflex Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 230000009514 concussion Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000029918 bioluminescence Effects 0.000 description 1
- 238000005415 bioluminescence Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The utility model relates to an optical device and discloses a weak light collector in a three-dimensional space. The weak light collector comprises an ellipsoidal reflection mirror, a spherical reflection mirror and a flat reflection mirror. Both the ellipsoidal reflection mirror and the spherical reflection mirror are concave reflection mirrors, and the concave faces of the two mirrors face each other to form a cavity. The center of the spherical reflection mirror coincides with a focus of the oval in the ellipsoidal reflection mirror. The reflection surface of the flat reflection mirror is at the middle point of the connection line of two focuses of the oval in the ellipsoidal reflection mirror. The area of the flat reflection mirror is 1/5 to 1/3 of the oval latus rectum circle area in the ellipsoidal reflection mirror. According to the weak light collector, a special structure is employed, and weak light such as fluorescence and Raman scattering light of trace substance emitted by a laser beam is effectively and directionally collected in a three-dimensional space range.
Description
Technical field
The utility model relates to a kind of optical devices, has related in particular to faint light gatherer in a kind of three dimensions.
Background technology
Collect and spectrographic detection faint light such as bioluminescence, cell fluorescence, Raman diffused lights current many biology laboratories, Cytology Lab or physics laboratory, carries out the related experiment of probing into for molecular property.For spectrographic detection, the fluorescence that first will send molecule, Raman diffused light have higher collection rate, high as far as possible raising signal to noise ratio (S/N ratio), and particularly for very weak spectral lines such as fluorescence, Raman diffused lights, this point is particularly important.If any fluorescence, Raman diffused light itself very faint, with the naked eye cannot observe, the spectral line detecting is difficult to the signal to noise ratio (S/N ratio) that reaches desirable, affects experiment process, if lack effective faint light gathering-device, result is difficult to reach requirement especially.
To be regarded as pointolite by the gas of laser excitation or small material, its angle of divergence is whole space multistory angle 4 π, current existing faint light gatherer is failed the efficient collection such as the exciting light-fluorescence in this 4 π space, Raman diffused light, but only has solid angle θ.Or 2 θ, by adding spherical reflector at the relay optical lens combination back side, realize.The faint light such as the fluorescence of the trace materials that therefore, laser excitation at present goes out, Raman diffused light are difficult to effective collection in three dimensions.
Summary of the invention
The faint light such as the fluorescence of the trace materials that the utility model goes out for laser excitation in prior art, Raman diffused light obtain directed problem of collecting efficiently within the scope of three dimensions, and faint light gatherer in a kind of three dimensions is provided.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A faint light gatherer in three dimensions, comprises an ellipsoidal mirror, a spherical reflector and a plane mirror, and ellipsoidal mirror, spherical reflector are concave mirror, and both concave surfaces are relative, form a cavity; The center of circle of spherical reflector overlaps with a focus oval in ellipsoidal mirror; The reflecting surface of plane mirror is arranged in the midpoint of two oval focus lines of ellipsoidal mirror, the area of plane mirror be in ellipsoidal mirror the oval latus rectum place area of a circle 1/6～1/2, size just can cover light beam, and the light after reflection is reflected converge to focus place completely.
As preferably, the reflecting surface of plane mirror, ellipsoidal mirror, spherical reflector is all coated with the reflectance coating that light reflectivity is greater than 99%.
As preferably, the summit of ellipsoidal mirror is provided with through hole, and through hole is provided with relay optical lens combination, better the light beam of having collected is carried out to rationally effective utilization.
As preferably, plane mirror is replaceable is convex reflecting mirror, convex reflecting mirror can move up and down along oval main shaft, with this, adjusts the luminous energy size that enters relay optical lens combination, and making has maximal value from fluorescence or the Raman diffused light of the through hole outgoing of ellipsoidal mirror.
As preferably, the shape of plane mirror and convex reflecting mirror can be circle, square or other regular shapes.
As preferably, when plane mirror is circular, the radius of plane mirror is half of oval semi-latus rectum in ellipsoidal mirror, the area that is plane mirror be in ellipsoidal mirror the oval latus rectum place area of a circle 1/4, can guarantee that plane mirror just can cover light beam, the light after reflection is reflected converge to focus place completely.
As preferably, place, spherical reflector summit is provided with through hole.The installment and debugging that the plane mirror that can facilitate the inside is set of through hole.
Principle of work of the present utility model: add spherical reflector at ellipsoidal reflector correspondence position, form a cavity, and the center of circle of spherical reflector overlaps with the first focus oval in ellipsoidal mirror, the fluorescence that now laser beam inspires or the formed pointolite of Raman diffused light be the centre of sphere in spherical reflector just, also the first focus place of while ellipse in ellipsoidal reflector.The fluorescence that laser beam inspires or Raman diffused light are because volume is small, can be considered pointolite, the first focus place of this pointolite in ellipsoidal reflector, the centre of sphere of spherical reflector namely, the light overwhelming majority of upwards being sent by light source converges to the second focus place of ellipsoidal reflector after ellipsoidal reflector reflection.In the first focus of ellipsoidal reflector and the centre position of the second focus, add flat reflective mirror or convex reflecting mirror, its size just can cover light beam, and adjust its position on oval main shaft, with this, adjust the luminous energy size that enters relay optical lens combination, making has maximal value from fluorescence or the Raman diffused light of the through hole outgoing of ellipsoidal mirror.
The utility model, owing to having adopted above technical scheme, has significant technique effect:
The utility model adopts special structure, the faint light such as fluorescence, Raman diffused light of the trace materials that laser beam inspires are converged after elliptical reflector, spherical reflector and plane mirror or convex reflecting mirror reflection, finally all enter relaying photosystem lens combination, make faint light within the scope of three dimensions, obtain directed collection efficiently.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is exciting light light path 1 in the utility model inner chamber;
Fig. 3 is exciting light light path 2 in the utility model inner chamber;
Fig. 4 is exciting light light path 3 in the utility model inner chamber;
Fig. 5 is exciting light light path 4 in the utility model inner chamber;
Fig. 6 is exciting light light path 5 in the utility model inner chamber;
Fig. 7 is the structural representation of the utility model embodiment 2;
Fig. 8 is a kind of structural representation of the utility model embodiment 3;
Fig. 9 is the another kind of structural representation of the utility model embodiment 3.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-elliptical reflector, 2-spherical reflector, 3-plane mirror, 4-relay optical lens combination, 5-laser beam, 6-convex reflecting mirror.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
Faint light gatherer in a kind of three dimensions, as shown in Figure 1, comprise an ellipsoidal mirror 1, spherical reflector 2 and a plane mirror 3, ellipsoidal mirror 1, spherical reflector 2 are concave mirror, and both concave surfaces are relative, form a cavity; The center of circle of spherical reflector 2 overlaps with a focus oval in ellipsoidal mirror 1, and the radius of spherical reflector 2 equals semi-latus rectum oval in ellipsoidal mirror 1; The formed pointolite of the fluorescence that laser beam 5 inspires or Raman diffused light is the centre of sphere in spherical reflector 2 just, also the focus place near ellipsoidal reflector in ellipsoidal reflector 1 simultaneously.
Plane mirror 3 is positioned at spherical reflector 2, be centered close on main shaft oval in ellipsoidal mirror 1, reflecting surface is arranged in the midpoint of two oval focus lines of ellipsoidal mirror 1, plane mirror is circular, the radius of plane mirror be in ellipsoidal mirror oval semi-latus rectum half, be area be in ellipsoidal mirror the oval latus rectum place area of a circle 1/4, size just can cover light beam.
It is 99.5% reflectance coating that the reflecting surface of plane mirror 3, ellipsoidal mirror 1, spherical reflector 2 is all coated with light reflectivity.
The summit of ellipsoidal mirror 1 is provided with through hole, and through hole is provided with relay optical lens combination 4, better the light beam of having collected is carried out rationally effectively utilizing.
Spherical reflector 2 places, summit are provided with through hole.The installment and debugging that the plane mirror 3 that can facilitate the inside is set of through hole.
Light can be divided into 5 tunnels in elliptical reflector and the formed collecting chamber of spherical reflector in the utility model:
(1) light path 1 as shown in Figure 2: seldom a part of fluorescence or Raman diffused light that laser beam 5 inspires directly enter relay optical lens combination 4 by the through hole on ellipsoidal reflector 1;
(2) light path 2 as shown in Figure 3: a part of fluorescence that laser beam 5 inspires or Raman diffused light are incident to ellipsoidal reflector 1 inside surface, through this face, reflex to plane mirror 3, after these plane mirror 3 reflections, by the through hole on ellipsoidal reflector 1, enter relay optical lens combination 4 again, owing to being incident to the variation of the angle of ellipsoidal reflector 1, between ellipsoidal reflector 1 and plane mirror 3, can produce repeatedly concussion, finally through passing through to enter relay optical lens combination 4 on ellipsoidal reflector 1;
(3) light path 3 as shown in Figure 4: a part of fluorescence or Raman diffused light that laser beam 5 inspires are incident to plane mirror 3 enters relay optical lens combination 4 by the through hole on ellipsoidal reflector 1 after this catoptron reflection;
(4) light path 4 as shown in Figure 5: a part of fluorescence or Raman diffused light that laser beam 5 inspires are incident to plane mirror 3, after this catoptron reflection, be incident to ellipsoidal reflector 1, through ellipsoidal reflector 1, reflex to spherical reflector 2 again, by spherical reflector 2, reflex to ellipsoidal reflector 1, then through ellipsoidal reflector 1, reflex to plane mirror 3, by plane mirror 3, reflex to ellipsoidal reflector 1, then by ellipsoidal reflector 1, reflex to plane mirror 3, finally by entering relay optical lens combination 4 by the through hole on ellipsoidal reflector 1 after these plane mirror 3 reflections, owing to being incident to the variation of the angle of plane mirror 3, between ellipsoidal reflector 1 and plane mirror 3, can produce repeatedly concussion, final through passing through to enter relay optical lens combination 4 on ellipsoidal reflector 1,
(5) light path 5 as shown in Figure 6: a part of fluorescence or Raman diffused light that laser beam 5 inspires are incident to spherical reflector 2, after this catoptron reflection, be incident to ellipsoidal reflector 1, through ellipsoidal reflector 1, reflex to plane mirror 3 again, then by being incident to ellipsoidal reflector 1 after plane mirror 3 reflections, then by being incident to plane mirror 3 after ellipsoidal reflector 1 reflection, finally by entering relay optical lens combination 4 by the through hole on ellipsoidal reflector 1 after plane mirror 3 reflections; Owing to being incident to the variation of spherical reflector 2 angles, between ellipsoidal reflector 1 and plane mirror 3, have repeatedly concussion, finally by entering relay optical lens combination 4 by the through hole on ellipsoidal reflector 1 after plane mirror 3 reflections.
The fluorescence that laser beam 5 inspires or Raman diffused light are by above-mentioned 5 kinds of light paths, finally all enter in relay optical lens combination 4, make the faint light such as fluorescence or Raman diffused light in three dimensions, obtain efficient, directed collection, faint light is reasonably and effectively used.
Embodiment 2
As shown in Figure 7, with embodiment 1, difference is that plane mirror 3 replaces with convex reflecting mirror 6, adjusts the position of convex reflecting mirror 6 on oval main shaft, with this, adjusts the luminous energy size that enters relay optical lens combination 4.
Embodiment 3
As shown in Figure 8, Figure 9, with embodiment 1 and embodiment 2, difference is that plane mirror 3 or convex reflecting mirror 6 is square, area be in ellipsoidal mirror 1 the oval latus rectum place area of a circle 1/6, and the concave surface place of extensible spherical reflector 2.
Embodiment 4
With embodiment 1, embodiment 2 and embodiment 3, difference is that plane mirror 3 or convex reflecting mirror 6 is regular hexagon, area be in ellipsoidal mirror 1 the oval latus rectum place area of a circle 1/2.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (7)
1. faint light gatherer in a three dimensions, it is characterized in that: comprise ellipsoidal mirror (1), spherical reflector (2) and plane mirror (3), ellipsoidal mirror (1), spherical reflector (2) are concave mirror, and both concave surfaces are relative, form a cavity; The center of circle of spherical reflector (2) overlaps with a focus oval in ellipsoidal mirror (1); The reflecting surface of plane mirror (3) is arranged in the midpoint of two oval focus lines of ellipsoidal mirror (1), the area of plane mirror (3) be in ellipsoidal mirror (1) the oval latus rectum place area of a circle 1/6～1/2.
2. faint light gatherer in a kind of three dimensions according to claim 1, is characterized in that: the shape of plane mirror (3) can be circle, square or other regular shapes.
3. faint light gatherer in a kind of three dimensions according to claim 2, is characterized in that: plane mirror (3) is for circular, and the radius of plane mirror (3) is half of oval semi-latus rectum in ellipsoidal mirror (1).
4. faint light gatherer in a kind of three dimensions according to claim 1, is characterized in that: the reflecting surface of plane mirror (3), ellipsoidal mirror (1), spherical reflector (2) is all coated with the reflectance coating that light reflectivity is greater than 99%.
5. faint light gatherer in a kind of three dimensions according to claim 1, is characterized in that: the summit of ellipsoidal mirror (1) is provided with through hole, and through hole is provided with relay optical lens combination (4).
6. faint light gatherer in a kind of three dimensions according to claim 1, is characterized in that: place, spherical reflector (2) summit is provided with through hole.
7. faint light gatherer in a kind of three dimensions according to claim 1, is characterized in that, plane mirror (3) replaces with convex reflecting mirror (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163672.XU CN203825285U (en) | 2014-04-04 | 2014-04-04 | Weak light collector in three-dimensional space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163672.XU CN203825285U (en) | 2014-04-04 | 2014-04-04 | Weak light collector in three-dimensional space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825285U true CN203825285U (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420163672.XU Expired - Lifetime CN203825285U (en) | 2014-04-04 | 2014-04-04 | Weak light collector in three-dimensional space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203825285U (en) |
-
2014
- 2014-04-04 CN CN201420163672.XU patent/CN203825285U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171122 Address after: Green Ting Road Yuhang District Cang Qian street of Hangzhou city Zhejiang province 311121 No. 1 Building 3 room 492 Patentee after: FINDER DETECTION TECHNOLOGIES CO.,LTD. Address before: Yuhang District, Hangzhou City, Zhejiang Province, 311121 West Sea No. 998 Park Building No. 4 Room 401 Patentee before: ZHEJIANG CONVOLUTION SCIENCE & TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| CP02 | Change in the address of a patent holder |
Address after: 310000 east side of the second floor, building 2, No. 11-1, Yuda Road, Yuhang street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: FINDER DETECTION TECHNOLOGIES Co.,Ltd. Address before: Green Ting Road Yuhang District Cang Qian street of Hangzhou city Zhejiang province 311121 No. 1 Building 3 room 492 Patentee before: FINDER DETECTION TECHNOLOGIES Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
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| CX01 | Expiry of patent term |