CN220019388U - Multiple reflection light enhancement device - Google Patents
Multiple reflection light enhancement device Download PDFInfo
- Publication number
- CN220019388U CN220019388U CN202320934615.6U CN202320934615U CN220019388U CN 220019388 U CN220019388 U CN 220019388U CN 202320934615 U CN202320934615 U CN 202320934615U CN 220019388 U CN220019388 U CN 220019388U
- Authority
- CN
- China
- Prior art keywords
- reflector
- lens
- parallel light
- light source
- reflection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002245 particle Substances 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 4
- 238000001237 Raman spectrum Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000002795 fluorescence method Methods 0.000 abstract description 2
- 244000005700 microbiome Species 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract description 2
- 238000001069 Raman spectroscopy Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to the technical field of gas detection, in particular to a multi-reflection light enhancement device which comprises a parallel light source, a reflector and a lens, wherein the reflector is provided with a long axis, a short axis and two focuses, the parallel light source is arranged on the inner wall of the reflector and is close to the long axis of the reflector, the lens is arranged in the reflector, and the lens is arranged at the position where parallel light emitted by the parallel light source is converged at the focuses of the reflector. The reflection times of the optical path can theoretically realize infinite reflection, so that the scattering is greatly enhanced, and the reflection light enhancing device can be applied to improving the detection capability of a dust particle counter, a fluorescence method microorganism particle detector, a Raman spectrum and the like.
Description
Technical Field
The utility model relates to the technical field of gas detection, in particular to a multi-reflection light enhancement device.
Background
Currently, dust particle counters, fluorescent microbiological particle detectors and raman spectroscopy analyzers all require high intensity incident light to be obtained within the cavity to produce the required scattered signals. Since the scattered light signal, the fluorescence scattered signal and the raman scattered spectrum signal of small-particle-diameter dust particles are very weak, the detection capability is severely restricted. Patent application number: 202022629335.3, entitled "raman spectral excitation enhancement module", provides a spectral enhancement device that can achieve a limited number of reflection enhancements. No device for realizing infinite reflection enhancement is described in the prior art.
Disclosure of Invention
The utility model aims to provide a multi-reflection light enhancement device so as to solve the problem that the scattered light signal is difficult to further enhance in the existing gas detection technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a multiple reflection light enhancement device, includes parallel light source, speculum, lens, the speculum has major axis and minor axis and two focuses, parallel light source sets up on the inner wall of speculum to near the major axis of speculum, the lens sets up in the inside of speculum, the lens is in the position setting of focusing on the focus of speculum with the parallel light that parallel light source sent.
Preferably, the reflecting mirror adopts an elliptic cylindrical reflecting mirror, and the lens adopts an anti-spherical-aberration cylindrical mirror.
Preferably, the reflector adopts an ellipsoidal reflector cavity, and the lens adopts an anti-spherical lens.
Compared with the prior art, the utility model has the beneficial effects that:
the reflection times of the optical path can theoretically realize infinite reflection, so that the scattering is greatly enhanced, and the reflection light enhancing device can be applied to improving the detection capability of a dust particle counter, a fluorescence method microorganism particle detector, a Raman spectrum and the like.
Drawings
FIG. 1 is a light path diagram of embodiment 1 of the present utility model;
fig. 2 is a light path diagram of embodiment 2 of the present utility model.
Reference numerals illustrate:
a parallel light source 1, an elliptical cylindrical reflector 2, an anti-spherical-aberration cylindrical reflector 3, an elliptical reflector cavity 4 and an anti-spherical-aberration lens 5.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1, the present embodiment provides a multiple reflection light enhancement device, which includes a parallel light source 1, an elliptical cylindrical mirror 2, and an anti-spherical-aberration cylindrical mirror 3, wherein the elliptical cylindrical mirror 2 has a long axis and a short axis, and a focal point 1 and a focal point 2, the parallel light source 1 is disposed on an inner wall of the elliptical cylindrical mirror 2 and is close to the long axis of the elliptical cylindrical mirror 2, the anti-spherical-aberration cylindrical mirror 3 is disposed inside the elliptical cylindrical mirror 2, and the anti-spherical-aberration cylindrical mirror 3 is disposed at a position where the parallel light emitted by the parallel light source 1 is converged at the focal point of the elliptical cylindrical mirror 2.
As shown in fig. 1, fig. 1 is illustrated with only one ray for clarity of illustration of the light path principle. The elliptical cylindrical mirror 2 has one characteristic: in the horizontal plane, the light rays emitted by one focus are necessarily reflected to the other focus. According to this feature, the light rays passing through the aplanatic cylindrical mirror 3 from the parallel light source 1 are converged in the plane shown in fig. 1 to the focal point 1 of the elliptical cylindrical mirror 2. After passing through the focal point 1, the light ray can be reflected for the first time on the reflecting point 1 on the inner wall of the elliptical cylindrical reflector 2, the reflected light ray can pass through the focal point 2 and be reflected again on the reflecting point 2 on the inner wall of the elliptical cylindrical reflector 2, and the light ray passes through the focal point 1 again and is reflected for the third time on the reflecting point 3 on the inner wall of the elliptical cylindrical reflector 2, so that the light ray is reflected repeatedly. Since each reflection point is located farther from the focal point through which the light is to pass than the next reflection point to the focal point through which the light is just passed, each reflection point is closer to the long axis of the elliptical cylindrical mirror 2 than the last reflection point. As the number of reflections increases, the reflection point becomes infinitely close to the long axis and always unable to coincide with the long axis, so that infinite reflections can be formed.
The parallel light emitted by the parallel light source 1 is refracted by the spherical aberration eliminating cylindrical mirror 3 and then is converged in the horizontal plane, and the parallel state is still maintained in the vertical plane, so that the light beam is continuously close to the long axis in the horizontal plane, and the original width is always kept unchanged in the vertical plane. So that the beam enhanced in the long axis direction of the elliptical cylindrical reflector 2 has a certain width in the vertical plane so as to meet the practical use requirement.
Example 2
Referring to fig. 2, the present embodiment provides a multiple reflection light enhancement device, which includes a parallel light source 1, an ellipsoidal reflector cavity 4, and an anti-spherical lens 5, wherein the ellipsoidal reflector cavity 4 has a long axis and a short axis, and a focal point 1 and a focal point 2, the parallel light source 1 is disposed on an inner wall of the ellipsoidal reflector cavity 4 and is close to the long axis of the ellipsoidal reflector cavity 4, the anti-spherical lens 5 is disposed inside the ellipsoidal reflector cavity 4, and the anti-spherical lens 5 is disposed at a position where the parallel light emitted by the parallel light source 1 is converged at the focal point of the ellipsoidal reflector cavity 4.
As shown in fig. 2, the ellipsoidal mirror cavity 4 also has the characteristics: in the horizontal plane, the light rays emitted by one focus are necessarily reflected to the other focus. According to this feature, the light rays passing through the aspherical lens 5 from the parallel light source 1 are converged in the plane shown in fig. 1 to the focal point 1 of the ellipsoidal reflector cavity 4. After passing through the focal point 1, the light ray will be reflected for the first time on the reflection point 1 on the inner wall of the ellipsoidal reflector cavity 4, the reflected light ray will pass through the focal point 2, be reflected again on the reflection point 2 on the inner wall of the ellipsoidal reflector cavity 4, and pass through the focal point 1 again to be reflected for the third time on the reflection point 3 on the inner wall of the ellipsoidal reflector cavity 4, so that the reflection is repeated continuously. Since each reflection point is located farther from the focal point through which the light ray passes than the next reflection point to the focal point through which it has just passed, each reflection point is closer to the long axis of the ellipsoidal mirror cavity 4 than the last reflection point. As the number of reflections increases, the reflection point becomes infinitely close to the long axis and always unable to coincide with the long axis, so that infinite reflections can be formed.
The parallel light emitted by the parallel light source 1 is refracted by the spherical aberration elimination lens 5 and then converged in the horizontal plane and the vertical plane, so that the light beam is continuously close to the long axis, but the caliber of the light beam is smaller and smaller.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A multiple reflection light enhancement device, characterized by: the light source comprises a parallel light source, a reflector and a lens, wherein the reflector is provided with a long shaft, a short shaft and two focuses, the parallel light source is arranged on the inner wall of the reflector and is close to the long shaft of the reflector, the lens is arranged inside the reflector, and the lens is arranged at the position where parallel light emitted by the parallel light source is converged at the focuses of the reflector.
2. The multiple reflection light enhancement device of claim 1, wherein: the reflecting mirror adopts an elliptic cylindrical reflecting mirror, and the lens adopts an anti-spherical-aberration cylindrical mirror.
3. The multiple reflection light enhancement device of claim 1, wherein: the reflector adopts an ellipsoidal reflector cavity, and the lens adopts an anti-spherical lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320934615.6U CN220019388U (en) | 2023-04-24 | 2023-04-24 | Multiple reflection light enhancement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320934615.6U CN220019388U (en) | 2023-04-24 | 2023-04-24 | Multiple reflection light enhancement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220019388U true CN220019388U (en) | 2023-11-14 |
Family
ID=88685145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320934615.6U Active CN220019388U (en) | 2023-04-24 | 2023-04-24 | Multiple reflection light enhancement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220019388U (en) |
-
2023
- 2023-04-24 CN CN202320934615.6U patent/CN220019388U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206348269U (en) | A kind of bioluminescence collection structure based on ellipsoidal mirror | |
| US7876436B2 (en) | Irradiation unit for a flow-cytometry-based analytical instrument and analytical instrument including the same | |
| CN104614362B (en) | Free space gas Raman scattering collecting device | |
| CN104502304B (en) | Miniature solidification near infrared spectrometer based on virtual slit technology | |
| CN111624182A (en) | Capillary photometer | |
| CN220019388U (en) | Multiple reflection light enhancement device | |
| CN107389566B (en) | Device for collecting diffuse reflection light of sample in spectrometer | |
| CN208766107U (en) | A kind of phosphor collection device of fluorescence detector | |
| CN213275352U (en) | Raman signal collecting probe based on off-axis parabolic reflector | |
| CN207571018U (en) | A kind of gas absorption cell light channel structure suitable for fume continuous monitoring system | |
| CN114324272B (en) | Ion beam fluorescence detection device and method for 4 pi solid angle | |
| CN206489074U (en) | A kind of fluorescence detecting system for cytoanalyze | |
| CN115452804A (en) | Raman spectrum detection device and method for body fluid | |
| CN112730180B (en) | High-sensitivity dust particle counting sensor with double detectors | |
| CN210181223U (en) | Compact laser radar ranging optical system | |
| CN213986200U (en) | Raman spectrum excitation enhancement module | |
| CN212008328U (en) | ICP-AES optical path system | |
| CN110361856B (en) | Secondary optical lens module for luminescence detector and luminescence detector | |
| CN220019377U (en) | Ellipsoid mirror multiple reflection absorption cell | |
| CN107505307B (en) | Full-surrounding type elliptical spherical mirror light path laser-induced breakdown spectrometer system | |
| CN219496065U (en) | Novel particle counter light path system | |
| CN116990281B (en) | Cavity-enhanced Raman detection device with high collection efficiency | |
| CN116297320B (en) | Near infrared spectrum system for coal quality analysis and coal quality analysis method | |
| CN221124280U (en) | Fluorescence detection confocal optical module | |
| CN214066341U (en) | Concave flat field grating rear light splitting monochromator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |