CN203825284U - Weak light collector in three-dimensional space - Google Patents
Weak light collector in three-dimensional space Download PDFInfo
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- CN203825284U CN203825284U CN201420163606.2U CN201420163606U CN203825284U CN 203825284 U CN203825284 U CN 203825284U CN 201420163606 U CN201420163606 U CN 201420163606U CN 203825284 U CN203825284 U CN 203825284U
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- spherical reflector
- ellipsoidal
- light
- reflection mirror
- reflector
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- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 claims description 2
- 238000001069 Raman spectroscopy Methods 0.000 abstract description 17
- 239000000126 substance Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram 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
- 230000011514 reflex Effects 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
- 238000001579 optical reflectometry Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
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 and a spherical 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 curvature radius of the spherical reflection mirror is equal to the focal length of the oval 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, fluorescence, the Raman diffused light that first will send molecule have higher collection rate, high as far as possible raising signal to noise ratio (S/N ratio), and particularly, for the very weak spectral line such as fluorescence, Raman diffused light, 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 fails to collect efficient to exciting light-fluorescence, Raman diffused light etc. in this 4 π space, but only has solid angle θ.Or 2 θ, realize by adding spherical reflector at the relay optical lens combination back side.The faint light such as fluorescence, Raman diffused light of the trace materials that therefore, laser excitation at present goes out is difficult to effective collection in three dimensions.
Summary of the invention
The faint light such as fluorescence, Raman diffused light of the trace materials that the utility model goes out for laser excitation in prior art obtains 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:
Faint light gatherer in three dimensions, comprises ellipsoidal mirror, spherical reflector, 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, and the radius-of-curvature of spherical reflector equals 0.6～1.4 times of oval focal length in ellipsoidal mirror.Adopt this special shape, can make pointolite that fluorescence that laser beam inspires or Raman diffused light form the first focus place in ellipsoidal reflector, the namely center of circle of spherical reflector, the light overwhelming majority of upwards being sent by light source substantially converges to the second focus place of ellipsoidal reflector after ellipsoidal reflector reflection, namely the summit of spherical reflector, converges collection.The light that is entered spherical reflector by the downward part of light source directly enters relay optical lens combination through the through hole of spherical reflector, another part reflexes to ellipsoidal reflector through spherical reflector, then converges to ellipsoidal reflector the second focus place away from ellipsoidal reflector after ellipsoidal reflector reflection.
As preferably, the summit of spherical reflector 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, the radius-of-curvature of spherical reflector equals oval focal length in ellipsoidal mirror, makes light that laser beam inspires converge to the second focus place of ellipsoidal reflector, the namely summit of spherical reflector completely.
As preferably, the reflecting surface of ellipsoidal mirror, spherical reflector is all coated with the reflectance coating that light reflectivity is greater than 99%.
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 radius-of-curvature of spherical reflector equals 0.6～1.4 times of oval focal length in ellipsoidal mirror, i.e. the summit of spherical reflector and approximate coincidence of the second focus oval in ellipsoidal mirror.The fluorescence inspiring due to laser beam or Raman diffused light, because volume is small, can be considered pointolite.The first focus place of this pointolite in ellipsoidal reflector, the namely center of circle of spherical reflector, the light overwhelming majority of upwards being sent by light source substantially converges to the second focus place of ellipsoidal reflector, the namely summit of spherical reflector after ellipsoidal reflector reflection; The light that is entered spherical reflector by the downward part of light source directly enters relay optical lens combination through the through hole of spherical reflector, another part reflexes to ellipsoidal reflector through spherical reflector, then after ellipsoidal reflector reflection, substantially converges to the second focus place of ellipsoidal reflector.The summit of spherical reflector 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 rationally effectively utilizing.
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 is substantially converged in a bit after elliptical reflector, spherical reflector reflection, it is the summit of spherical reflector, finally all enter relaying photosystem lens combination, make faint light within the scope of three dimensions, obtain directed collection efficiently.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is exciting light light path 1 in the utility model embodiment 1 inner chamber;
Fig. 3 is exciting light light path 2 in the utility model embodiment 1 inner chamber;
Fig. 4 is exciting light light path 3 in the utility model embodiment 1 inner chamber;
Fig. 5 is exciting light light path schematic diagram in embodiment 2 inner chambers in the utility model;
Fig. 6 is exciting light light path schematic diagram in embodiment 3 inner chambers in the utility model;
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-elliptical reflector, 2-spherical reflector, 3-relay optical lens combination, 4-laser beam.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
Faint light gatherer in three dimensions, as shown in Figure 1, comprises ellipsoidal mirror 1, spherical reflector 2, and ellipsoidal mirror 2, 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 the first focus oval in ellipsoidal mirror 1, and the radius-of-curvature of spherical reflector 2 equals focal length oval in ellipsoidal mirror 1; The first focus place of the pointolite that the fluorescence that laser beam inspires or Raman diffused light form in ellipsoidal reflector, the namely center of circle of spherical reflector, the light overwhelming majority of upwards being sent by light source converges to the second focus place of ellipsoidal reflector, the namely summit of spherical reflector after ellipsoidal reflector reflection.
The summit place of spherical reflector 2 is provided with through hole, and through hole is provided with relay optical lens combination 3, better the light beam of having collected is carried out rationally effectively utilizing.
The reflecting surface of ellipsoidal mirror 1, spherical reflector 2 is all coated with penetrates the reflectance coating that reflectivity is greater than 99%.
In the collecting chamber that light elliptical reflector and spherical reflector in the utility model form, can be divided into 3 tunnels:
(1) light path 1 as shown in Figure 2: little a part of fluorescence or Raman diffused light that laser beam 4 inspires directly enter relay optical lens combination 3 by the through hole on spherical reflector 2;
(2) light path 2 as shown in Figure 3: a part of fluorescence that laser beam 4 inspires or Raman diffused light are incident to that spherical reflector 2 is rear is reflexed to ellipsoidal reflector 1 by this catoptron, then after being reflected by ellipsoidal reflector 1, it are entered to inject relay optical lens combination 3 by the through hole on spherical reflector 2;
(3) light path 3 as shown in Figure 4: a part of fluorescence or Raman diffused light that laser beam 4 inspires are incident to ellipsoidal reflector 1, by after this catoptron reflection, it being entered to inject relay optical lens combination 3 by the through hole on spherical reflector 2;
The fluorescence that laser beam 4 inspires or Raman diffused light are by above-mentioned 3 kinds of light paths, finally all enter in relay optical lens combination 3, 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.
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.
Embodiment 2
As shown in Figure 5, with embodiment 1, difference is, the radius-of-curvature of spherical reflector equals 0.6 times of oval focal length in ellipsoidal mirror.
Embodiment 3
As shown in Figure 6, with embodiment 1, difference is, the radius-of-curvature of spherical reflector equals 1.4 times of oval focal length in ellipsoidal mirror.
Claims (4)
1. faint light gatherer in three dimensions, is characterized in that: comprise ellipsoidal mirror (1), spherical reflector (2), ellipsoidal mirror (2), spherical reflector (2) are concave mirror, and both concave surfaces are relative, form a cavity; A focus oval in the center of circle of spherical reflector (2) and ellipsoidal mirror (1) overlaps, and the radius-of-curvature of spherical reflector (2) equals 0.6～1.4 times of oval focal length in ellipsoidal mirror (1).
2. faint light gatherer in three dimensions according to claim 1, is characterized in that: the summit place of spherical reflector (2) is provided with through hole, and through hole is provided with relay optical lens combination (3).
3. faint light gatherer in three dimensions according to claim 1, is characterized in that: the radius-of-curvature of spherical reflector (2) equals oval focal length in ellipsoidal mirror (1).
4. faint light gatherer in three dimensions according to claim 1, is characterized in that: the reflecting surface of ellipsoidal mirror (1), spherical reflector (2) is all coated with penetrates the reflectance coating that reflectivity is greater than 99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163606.2U CN203825284U (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 |
|---|---|---|---|
| CN201420163606.2U CN203825284U (en) | 2014-04-04 | 2014-04-04 | Weak light collector in three-dimensional space |
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| Publication Number | Publication Date |
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| CN203825284U true CN203825284U (en) | 2014-09-10 |
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| CN201420163606.2U Expired - Lifetime CN203825284U (en) | 2014-04-04 | 2014-04-04 | Weak light collector in three-dimensional space |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018330A (en) * | 2016-05-10 | 2016-10-12 | 四川长虹电器股份有限公司 | Pocket-type near-infrared spectrometer |
| CN107490432A (en) * | 2017-04-27 | 2017-12-19 | 安徽华脉科技发展有限公司 | A kind of Feebleness Light Signal Examining system |
| CN115494050A (en) * | 2022-11-15 | 2022-12-20 | 四川碧朗科技有限公司 | Low-light-level collection method, low-light-level collection device and luminescent bacteria low-light-level detection module |
-
2014
- 2014-04-04 CN CN201420163606.2U patent/CN203825284U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018330A (en) * | 2016-05-10 | 2016-10-12 | 四川长虹电器股份有限公司 | Pocket-type near-infrared spectrometer |
| CN106018330B (en) * | 2016-05-10 | 2019-03-22 | 四川长虹电器股份有限公司 | A kind of pocket-type near infrared spectrometer |
| CN107490432A (en) * | 2017-04-27 | 2017-12-19 | 安徽华脉科技发展有限公司 | A kind of Feebleness Light Signal Examining system |
| CN115494050A (en) * | 2022-11-15 | 2022-12-20 | 四川碧朗科技有限公司 | Low-light-level collection method, low-light-level collection device and luminescent bacteria low-light-level detection module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171121 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 |