CN207751877U - Effective UV excites fluorescence measuring device - Google Patents
Effective UV excites fluorescence measuring device Download PDFInfo
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- CN207751877U CN207751877U CN201721861615.9U CN201721861615U CN207751877U CN 207751877 U CN207751877 U CN 207751877U CN 201721861615 U CN201721861615 U CN 201721861615U CN 207751877 U CN207751877 U CN 207751877U
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Abstract
A kind of effective UV excitation fluorescence measuring device, is related to technical field of spectral detection, the solution is to improve fluorescence detection efficiency.The device includes burst of ultraviolel light source, light collection module, fiber spectrometer, and the smooth collection module includes coupled lens, optical filter, multi-core optical fiber；The fiber spectrometer includes slit device, concave reflection grating, imaging sensor；The light channel structure of the fluorescence measuring device is：From burst of ultraviolel light source, coupled lens, optical filter, multi-core optical fiber injection slit device, are then passed through directive concave reflection grating after slit device, then reflex to imaging sensor by concave reflection grating successively；The multi-core optical fiber is the symmetrical laying of multicore circle in the fibre core of incidence end, and multi-core optical fiber is that multicore sequentially arrange by straight line, and its arragement direction is consistent with the slit length direction of slit device in the fibre core of exit end.Device provided by the utility model, the fluorescence signal for measuring sample.
Description
Technical field
The utility model is related to spectrum detection techniques, and the skill of fluorescence measuring device is excited more particularly to a kind of effective UV
Art.
Background technology
Incident photon excites electronic to a upper state, and upper state electronics passes through radiationless transition to the first electron excitation
State, then when transitting to ground state by the first excited electronic state, photon can be launched, energy ratio incident light is small, and wavelength compares incident light
Long, which is referred to as fluorescence phenomenon, and the light emitted is known as fluorescence.
Existing fluorescence spectral measuring system generally comprises excitation light source, light recycling module, spectrometer.Wherein excitation light source is used
In transmitting exciting light, exciting light is direct or sample surface is irradiated to after lens focus, and sample is made to generate fluorescence, and light returns
It is transferred to spectrometer after receiving the fluorescence signal that module collection sample is inspired, spectrometer is used for disperse fluorescence signal, and detection is not
Fluorescence signal intensity at co-wavelength.
The defect of existing fluorescence spectral measuring system is:
Usual sample is stimulated, and area is big, and the surface of emission of fluorescence signal is also relatively large, even if using bigger numerical hole
The lens of diameter, the optical signal that can be effectively received by spectrometer is also seldom, and detection efficient is very low.
Invention content
Defect present in for the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a kind of spies
Survey efficient effective UV excitation fluorescence measuring device.
In order to solve the above-mentioned technical problem, a kind of effective UV provided by the utility model excites fluorescence measuring device,
Including burst of ultraviolel light source, light collection module, fiber spectrometer, it is characterised in that：
The smooth collection module includes coupled lens, optical filter, multi-core optical fiber；
The fiber spectrometer includes slit device, concave reflection grating, imaging sensor；
The light channel structure of the fluorescence measuring device is：From burst of ultraviolel light source, successively coupled lens, optical filtering
Piece, multi-core optical fiber inject slit device, are then passed through directive concave reflection grating after slit device, then reflected by concave reflection grating
To imaging sensor；
The multi-core optical fiber is the symmetrical laying of multicore circle in the fibre core of incidence end, and multi-core optical fiber is more in the fibre core of exit end
Core sequentially arrange by straight line, and its arragement direction is consistent with the slit length direction of slit device.
Effective UV provided by the utility model excites fluorescence measuring device, the incidence end fibre core of multi-core optical fiber to use multicore
Circle is symmetrical to be laid, and receiving area greatly increases, and whole reception coupling efficiency greatly improves, and the exit end of multi-core optical fiber is fine
Core using multicore, sequentially arrange by straight line, and consistent with the slit direction of fiber spectrometer, allows for entering multi-core optical fiber in this way
Fluorescence signal can maximumlly be received by spectrometer, have the characteristics that detection efficient is high.
Description of the drawings
Fig. 1 is the structural schematic diagram of the effective UV excitation fluorescence measuring device of the utility model embodiment；
Fig. 2 is that the structure of the light collection module in the effective UV excitation fluorescence measuring device of the utility model embodiment is shown
It is intended to；
Fig. 3 is that the structure of the fiber spectrometer in the effective UV excitation fluorescence measuring device of the utility model embodiment is shown
It is intended to.
Specific implementation mode
The embodiments of the present invention are described in further detail below in conjunction with description of the drawings, but the present embodiment and are not had to
In limitation the utility model, every similar structure using the utility model and its similar variation should all be included in the utility model
Protection domain, the pause mark in the utility model indicates the relationship of sum.
As shown in Figure 1-Figure 3, a kind of effective UV that the utility model embodiment is provided excites fluorescence measuring device, packet
Include burst of ultraviolel light source 1, light collection module 2, fiber spectrometer 3, it is characterised in that：
The smooth collection module 2 includes coupled lens 21, optical filter 22, multi-core optical fiber 23；
The fiber spectrometer 3 includes slit device 31, concave reflection grating 32, imaging sensor 33；
The light channel structure of the fluorescence measuring device is：From burst of ultraviolel light source 1, successively coupled lens 21, filter
Mating plate 22, multi-core optical fiber 23 inject slit device 31, are then passed through directive concave reflection grating 32 after slit device 31, then by concave surface
Reflecting grating 32 reflexes to imaging sensor 33；
The multi-core optical fiber 23 is the symmetrical laying of multicore circle, fibre core of the multi-core optical fiber 23 in exit end in the fibre core of incidence end
For multicore, sequentially straight line is arranged, and its arragement direction is consistent with the slit length direction of slit device 31.
In the utility model embodiment, the burst of ultraviolel light source 1 is the prior art, for emitting the ultraviolet of specific wavelength
Light, which, which is mapped on sample, can excite sample to generate fluorescence.
The operation principle of the utility model embodiment is as follows：
The ultraviolet lighting that burst of ultraviolel light source 1 emits is mapped on sample, and excitation sample generates fluorescence, what sample was inspired
After a fluorescence signal part is coupled the reception of lens 21, burst of ultraviolel light scattering signal therein is filtered out by optical filter 22, so
Enter multi-core optical fiber 23 afterwards, slit device 31 is transmitted to by multi-core optical fiber 23, due to the fibre core of the incidence end of multi-core optical fiber 23
Justify symmetrical laying for multicore, receiving area greatly increases, and whole reception coupling efficiency greatly improves, and multi-core optical fiber 23
The fibre core of exit end is that multicore sequentially arrange by straight line, therefore most fluorescence signal can pass through the slit consistent with its direction
Device 31, then via 32 disperse reflection of concave reflection grating to imaging sensor 33, pass through light after being captured by imaging sensor 33
Electricity conversion, forms the spectral data of the fluorescent signal light of a full spectral wavelength.
Claims (1)
1. a kind of effective UV excites fluorescence measuring device, including burst of ultraviolel light source, light collection module, fiber spectrometer,
It is characterized in that：
The smooth collection module includes coupled lens, optical filter, multi-core optical fiber；
The fiber spectrometer includes slit device, concave reflection grating, imaging sensor；
The light channel structure of the fluorescence measuring device is：From burst of ultraviolel light source, coupled lens, optical filter, more successively
Core fibre injects slit device, is then passed through directive concave reflection grating after slit device, then reflex to figure by concave reflection grating
As sensor；
The multi-core optical fiber, which in the fibre core of incidence end is that multicore circle is symmetrical, to be laid, multi-core optical fiber the fibre core of exit end be multicore according to
Sequence straight line is arranged, and its arragement direction is consistent with the slit length direction of slit device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721861615.9U CN207751877U (en) | 2017-12-27 | 2017-12-27 | Effective UV excites fluorescence measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721861615.9U CN207751877U (en) | 2017-12-27 | 2017-12-27 | Effective UV excites fluorescence measuring device |
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| CN207751877U true CN207751877U (en) | 2018-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226113A (en) * | 2017-12-27 | 2018-06-29 | 上海如海光电科技有限公司 | Effective UV excites fluorescence measuring device |
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2017
- 2017-12-27 CN CN201721861615.9U patent/CN207751877U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226113A (en) * | 2017-12-27 | 2018-06-29 | 上海如海光电科技有限公司 | Effective UV excites fluorescence measuring device |
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