CN208255041U - A kind of detector optical system - Google Patents
A kind of detector optical system Download PDFInfo
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- CN208255041U CN208255041U CN201820720354.7U CN201820720354U CN208255041U CN 208255041 U CN208255041 U CN 208255041U CN 201820720354 U CN201820720354 U CN 201820720354U CN 208255041 U CN208255041 U CN 208255041U
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Abstract
The utility model relates to biochemical analysis and detection technical fields, refer specifically to a kind of detector optical system；Lead to determinand, filtering mechanism and detector including radiation source, light, radiation source is arranged in filtering mechanism and light leads in the input path between determinand, and the transmitted light path that the light leads to determinand is equipped with the narrow band filter and optical signal receiver of the first spectrophotometric device, multiple groups different wave length；The optical path vertical with the logical determinand transmitted light path of light is equipped with the second spectrophotometric device, optical signal receiver and fluorescent acceptor；The utility model is structurally reasonable, the collimated ray that the light-condensing array that radiation source is made up of lens generates enters light after the screening of filtering mechanism and leads to determinand, optical signal is received after the monochromatic filtering of the narrow band filter of different wave length and fluorescent optical filter by detector respectively, to realize the Multiple detection combination of set of system, compact overall structure, cost be high, using flexible, can meet the needs of most of optical detection test at present.
Description
Technical field
The utility model relates to biochemical analysis and detection technical fields, refer specifically to a kind of detector optical system.
Background technique
Biochemistry detection principle has colorimetric, than turbid and excitation fluorescence method, uses much to detect more items needs
Wavelength, this just needs for polychromatic light to be divided into many monochromatic light.Currently used spectroscopic modes have following several: 1. rotating filterings
Piece wheel is divided scheme, is generally used for front light splitting, and the optical filter circumference array of different wave length is placed in installation wheel, needs to use
Rotating wheel is just gone into corresponding wavelength when which wavelength detecting, this scheme is simple and is easily achieved, but efficiency is lower, equipment body
Product is larger；2. being divided lens array is divided scheme, it is generally used for light splitting afterwards mode, the polychromatic light of reacted cup is divided into multiple logical
Road, the optical filter that corresponding wavelength is placed in each channel carry out monochromatic；This scheme does not have transmission mechanism, and its reliability is high, structure
Relative compact；3. grating beam splitting scheme is generally used for light splitting afterwards scheme, grating beam splitting is disposably segmented into many wavelength, knot
Structure is compact and high-efficient, but also has that at high cost, positioning requirements are high, the higher disadvantage of stray light.
Existing biochemistry detection instrument can realize colorimetric detection and the turbid detection of transmittance according to analysis demand, cannot achieve scattered
Penetrate than turbid detection, but the turbid signal-to-noise ratio of transmittance and sensitivity is without scattering turbidimetry height, and biochemical instrument also do not support to excite it is glimmering
Light detection, function is less, is not able to satisfy the application demand of entry analysis and pinpoint accuracy, therefore, the prior art needs
It improves and develops.
Utility model content
The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, provide one kind structurally reasonable, Ke Yishi
It now transmits, three kinds of optical detections of scattering and excitation fluorescence, the detector optics of the Concentration Testing requirement of a variety of objects can be met
System.
To achieve the goals above, the utility model uses following technical scheme:
A kind of detector optical system described in the utility model, including radiation source, light lead to determinand, filtering mechanism and
Detector, radiation source is arranged in filtering mechanism and light leads in the input path between determinand, and the light leads to the saturating of determinand
Optical path is penetrated equipped with the first spectrophotometric device and corresponding detector, detector includes that multiple groups narrow band filter and optical signal receive
Device；The refractive light paths that the light leads to determinand are equipped with the second spectrophotometric device and corresponding detector, and detector includes that optical signal connects
Receive device and fluorescent acceptor.
According to above scheme, the filtering mechanism includes optical filtering wheel disc, and radiation source and optical filtering wheel disc are arranged successively setting
In the input path that light leads to determinand, the optical filtering wheel disc is equipped with outgoing through-hole and several monochromatic filters, is emitted through-hole
It is distributed on same circular path with several monochromatic filters, and the turning circumference track leads to the input path phase of determinand with light
Handing over, which makes to be emitted through-hole and several monochromatic filters, can match respectively with radiation source and be arranged.
According to above scheme, first spectrophotometric device includes several spectroscopes, several spectroscopes successively compartment of terrain in light
Spectral array is arranged on the transmitted light path of logical determinand；Narrow band filter is equipped on any spectroscopical reflected light path
With corresponding optical signal receiver, several narrow band filters respectively correspond different monochromatic wave-length coverages to filter spectroscope reflection
Optical signal.
According to above scheme, two neighboring spectroscopical reflected light path is contrary in the spectral array.
According to above scheme, second spectrophotometric device includes spectroscope and fluorescent optical filter, and spectroscope and optical signal connect
It receives device to be arranged according to the refractive light paths for leading to determinand along light, fluorescent acceptor is set on spectroscopical reflected light path, and fluorescence filters
Piece is set between the spectroscope and fluorescent acceptor.
According to above scheme, the spectroscope can be any one in dichroscope or neutral beam splitter mirror.
According to above scheme, the optical path is using optical fiber as light propagation medium.
According to above scheme, the input path between the radiation source and filtering mechanism is equipped with light-condensing array, optically focused
Array is made of several lens being arranged successively, and radiation source forms collimated ray under the action of light-condensing array and is projeced into light
On logical determinand.
According to above scheme, the light leads to determinand and the first spectrophotometric device, the second spectrophotometric device, between filtering mechanism
Lens are equipped in optical path.
The utility model has the beneficial effect that the utility model is structurally reasonable, the optically focused battle array that radiation source is made up of lens
It arranges the collimated ray generated and enters the logical determinand of light after the screening of filtering mechanism, the transmission of generation, scattered light signal pass through respectively
It is conducted by the first and second spectrophotometric devices, optical signal is respectively in the monochromatic mistake of the narrow band filter of different wave length and fluorescent optical filter
It is received after filter by detector, to realize the Multiple detection combination of set of system, compact overall structure, cost be not high, uses spirit
It is living, can meet the needs of most of optical detection test at present.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the filtering mechanism partial structure diagram of the utility model.
In figure:
1, radiation source；2, light leads to determinand；3, filtering mechanism；4, spectroscope；5, optical fiber；11, light-condensing array；12, thoroughly
Mirror；31, optical filtering wheel disc；32, it is emitted through-hole；33, monochromatic filter；41, narrow band filter；42, fluorescent optical filter；43, light is believed
Number receiver；44, fluorescent acceptor.
Specific embodiment
The technical solution of the utility model is illustrated with embodiment with reference to the accompanying drawing.
As shown in Figure 1, a kind of detector optical system, including radiation source 1, light lead to determinand 2, filtering mechanism 3 and visit
Device is surveyed, radiation source 1 is arranged in filtering mechanism 3 and light leads in the input path between determinand 2, and the light leads to determinand 2
Transmitted light path is equipped with the first spectrophotometric device and corresponding detector, and detector includes that multiple groups narrow band filter 41 and optical signal connect
Receive device 43；The refractive light paths that the light leads to determinand 2 are equipped with the second spectrophotometric device and corresponding detector, and detector includes light letter
Number receiver 43 and fluorescent acceptor 44；The radiation source 1 generates light and enters the logical generation of determinand 2 transmission of light and scatter existing
As, wherein transmitted ray passes through the first spectrophotometric device along optical path, the first spectrophotometric device successively reflect the optical signal of different wave length to
Corresponding detector receives corresponding information by multiple optical signal receivers 43 to realize colorimetric detection, and scattering light edge
Optical path passes through the second spectrophotometric device, corresponding scattered light signal receiver 43 and fluorescent acceptor 44 for realizing than turbid and excitation
Fluorescence item detection.
Above-mentioned input path and transmitted light path are on the same straight line that light leads to determinand 2, to make radiation source 1
The light of sending is projeced into light along input path and leads on determinand 2, and light leads on determinand 2 in light to be generated optical signal transmissive and dissipate
Optical signal is penetrated, wherein optical signal transmissive continues to propagate along transmitted light path, and scattered light signal is propagated along refractive light paths, the refraction light
Road refer in addition to light lead to determinand 2 input path and transmitted light path other than any scattering direction, refraction described in this case
Optical path and the logical transmitted light path of determinand 2 of light are vertical to obtain strongest scattered light signal and optimal topology layout, then the folding
Penetrating optical path can be any radial direction using transmitted light path as axle center.
As shown in Fig. 2, the filtering mechanism 3 includes optical filtering wheel disc 31, radiation source 1 and optical filtering wheel disc 31 are arranged successively and set
It sets in the input path that light leads to determinand 2, the optical filtering wheel disc 31 is equipped with outgoing through-hole 32 and several monochromatic filters 33,
Outgoing through-hole 32 and several monochromatic filters 33 are distributed on same circular path, and the turning circumference track and light lead to determinand
2 input path intersection can match respectively with radiation source 1 and be arranged to make to be emitted through-hole 32 and several monochromatic filters 33；Institute
Filtering mechanism 3 is stated for the spectral region according to detection project filtering illumination light source 1, outgoing through-hole 32 then corresponds to all-wave length light
To carry out colorimetric detection, when corresponding monochromatic filter 33 turns to input path with optical filtering wheel disc 31, only allow monochromatic filter
Monochromatic light in 33 wave-length coverage of mating plate can pass through and via input path be radiated at light lead to determinand 2, thus filter it is extra
Optical signal is to reduce the interference to testing result.
First spectrophotometric device includes several spectroscopes 4, and successively compartment of terrain in light leads to determinand 2 to several spectroscopes 4
Spectral array is arranged on transmitted light path, several spectroscopes 4 lead to the transmitted light path of determinand 2 in 45 ° of angle settings with light；Institute
It states and is equipped with narrow band filter 41 and corresponding optical signal receiver 43 on the reflected light path of any spectroscope 4, several narrowband filters
Mating plate 41 respectively corresponds different monochromatic wave-length coverages to filter the optical signal of the reflection of spectroscope 4；Lead in determinand 2 from light and penetrates
Light successively pass through several spectroscopes 4 in spectral array, spectroscope 4, which reflects, simultaneously to be exported after the filtering of narrow band filter 41
To optical signal receiver 43, and other remaining wavelength lights continue to penetrate next spectroscope 4 and reflect corresponding optical signal, this
4 quantity of spectroscope of scheme can be increased and be reduced according to detection demand, but should include at least 340 in spectral array,
405, the spectroscope 4 and narrow band filter 41 of 505,546,578,630,660,700 these common wavelengths.
The spectroscope 4 can be any one in dichroscope or neutral beam splitter mirror, and dichroscope, which refers to, only to be reflected
The spectroscope 4 of specific wavelength light uses dichroscope when needing wavelength type more, the signal of long wavelength can be improved
Value；Neutral beam splitter mirror can be used when spectral array quantity is smaller, thus particular range detection when reduce component type with
Reduce infrastructure cost.
The reflected light path of two neighboring spectroscope 4 is contrary in the spectral array, in spectral array as shown in Figure 1
In layout, in 90 ° of angle settings between two adjacent spectroscopes 4, the detector symmetric configuration of the first spectrophotometric device two sides can
Effectively reduction and compact detector overall structure improve optical signal transmission efficiency.
Second spectrophotometric device includes spectroscope 4 and fluorescent optical filter 42, and spectroscope 4 and optical signal receiver 43 are according to edge
Light leads to the refractive light paths setting of determinand 2, and fluorescent acceptor 44 is set on the reflected light path of spectroscope 4, and fluorescent optical filter 42
Between the spectroscope 4 and fluorescent acceptor 44, the light scattered in determinand 2 is led to from light and enters the second spectrophotometric device,
For scattering light than turbid detection and excitation fluorescence detection, scattering light penetrates after spectroscope 4 by corresponding light second spectrophotometric device
Signal receiver 43 receives, and the light reflected through spectroscope 4 connects by the cut-off excitation light output of fluorescent optical filter 42 to fluorescence
Receive device 44.
Optical fiber 5 can be used as light propagation medium in the optical path, and the optical path includes that radiation source 1 and light lead to determinand
Input path, light between 2 lead to the logical determinand 2 of transmitted light path, light between determinand 2 and the first spectrophotometric device and the second light splitting
Refractive light paths between mechanism；The optical fiber 5 is used to build the optical path of this system to connect each main element, plays isolation heat
Source maintains the light direction of propagation and reduces the effect of the loss of signal.
Halogen lamp or LED light source, the input path between radiation source 1 and filtering mechanism 3 can be used in the radiation source 1
Be equipped with light-condensing array, light-condensing array is made of several lens 12 being arranged successively, lens 12 by focussing force to light into
Row convergence and calibration, radiation source 1 forms collimated ray under the action of light-condensing array and be projeced into light lead to determinand 2 on thus
Improve the output intensity of optical signal.
The light leads to determinand 2 and the first spectrophotometric device, the second spectrophotometric device, is all provided in the optical path between filtering mechanism 3
There are lens 12, the lens 12 realize the purpose of the light signal strength transmitted in enhancing system by convergence light.
The workflow of the utility model is as follows, and the radiation source 1, light-condensing array 11, optical filtering wheel disc 31, light lead to be measured
Object 2 and several spectroscopes 4 are successively set on the straight line path of light propagation, with several corresponding narrow band filters 41 and optical signal
Receiver 43 forms the first spectral detection system；Another spectroscope 4 and corresponding optical signal receiver 43, fluorescent optical filter 42
Light is set with fluorescence signal receiver 44 leads in the optical path of 2 side of determinand and forms the second spectral detection system；The irradiation
The white light that light source 1 issues forms collimated ray by the convergence of light-condensing array 11, and optical filtering wheel disc 31 screens it to export
Monochromatic hot spot is irradiated in light and leads on determinand 2, and light leads in light generates optical signal transmissive and scattered light signal on determinand 2；Its
In optical signal transmissive successively pass through several spectroscopes 4 in the first spectrophotometric device, 4 reflective portion optical signal transmissive of spectroscope is given
Corresponding narrow band filter 41, narrow band filter 41 only allow the optical signal of specific wavelength to pass through and are obtained by optical signal receiver 43
, and remaining optical signal transmissive continues to penetrate next spectroscope 4 and repeats the above steps；It is generated correspondingly, light leads to determinand 2
Scattered light signal be projeced into the spectroscope 4 in the second spectrophotometric device, 4 reflective portion scattered light signal of spectroscope is simultaneously projeced into glimmering
On light optical filter 42, excitation generates fluorescence signal and is obtained by fluorescence signal receiver 44 thereafter, and remaining scattered light signal
Spectroscope 4 is penetrated to be obtained by signal receiver 43 thereafter；The optical signal that the preferred light of the utility model leads to determinand 2 is incident
End, exit end are respectively equipped with lens 12, to improve the input and output intensity of optical signal.
The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range
The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.
Claims (9)
1. a kind of detector optical system, including radiation source (1), light lead to determinand (2), filtering mechanism (3) and detector, filter
Ray machine structure (3) setting is led in the input path between determinand (2) in radiation source (1) and light, it is characterised in that: the light is logical
The transmitted light path of determinand (2) is equipped with the first spectrophotometric device and corresponding detector, and detector includes multiple groups narrow band filter
(41) and optical signal receiver (43)；The refractive light paths that the light leads to determinand (2) are equipped with the second spectrophotometric device and corresponding spy
Device is surveyed, detector includes optical signal receiver (43) and fluorescent acceptor (44).
2. detector optical system according to claim 1, it is characterised in that: the filtering mechanism (3) includes filter wheel
Disk (31), radiation source (1) and optical filtering wheel disc (31) are arranged in order at light and lead in the input path of determinand (2), described
Optical filtering wheel disc (31) is equipped with outgoing through-hole (32) and several monochromatic filters (33), is emitted through-hole (32) and several monochromatic optical filterings
Piece (33) is distributed on same circular path, and the turning circumference track and light lead to determinand (2) input path intersect thus
Outgoing through-hole (32) and several monochromatic filters (33) is matched can with radiation source (1) respectively to be arranged.
3. detector optical system according to claim 1, it is characterised in that: first spectrophotometric device includes several points
Light microscopic (4), several spectroscopes (4) are successively arranged in spectral array on the transmitted light path that light leads to determinand (2) in compartment of terrain；It is described
Narrow band filter (41) and corresponding optical signal receiver (43) are equipped on the reflected light path of any spectroscope (4), it is several narrow
Different monochromatic wave-length coverages is respectively corresponded with optical filter (41) to filter the optical signal of spectroscope (4) reflection.
4. detector optical system according to claim 3, it is characterised in that: two neighboring light splitting in the spectral array
The reflected light path of mirror (4) is contrary.
5. detector optical system according to claim 1, it is characterised in that: second spectrophotometric device includes spectroscope
(4) it is set with fluorescent optical filter (42), spectroscope (4) and optical signal receiver (43) according to the refractive light paths for leading to determinand (2) along light
It sets, fluorescent acceptor (44) is set on the reflected light path of spectroscope (4), and fluorescent optical filter (42) is set to the spectroscope (4)
Between fluorescent acceptor (44).
6. according to detector optical system as claimed in claim 3 to 5, it is characterised in that: the spectroscope (4) can be
Any one in dichroscope or neutral beam splitter mirror.
7. -5 any detector optical system according to claim 1, it is characterised in that: the optical path uses optical fiber (5)
As light propagation medium.
8. detector optical system according to claim 1, it is characterised in that: the radiation source (1) and filtering mechanism
(3) input path between is equipped with light-condensing array, and light-condensing array is made of several lens (12) being arranged successively, radiation source
(1) collimated ray is formed under the action of light-condensing array and is projeced into light leads on determinand (2).
9. detector optical system according to claim 1, it is characterised in that: the light leads to determinand (2) and first point
Ray machine structure, the second spectrophotometric device are equipped with lens (12) in the optical path between filtering mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820720354.7U CN208255041U (en) | 2018-05-15 | 2018-05-15 | A kind of detector optical system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820720354.7U CN208255041U (en) | 2018-05-15 | 2018-05-15 | A kind of detector optical system |
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| CN208255041U true CN208255041U (en) | 2018-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776103A (en) * | 2018-05-15 | 2018-11-09 | 三诺生物传感股份有限公司 | A kind of detector optical system |
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2018
- 2018-05-15 CN CN201820720354.7U patent/CN208255041U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776103A (en) * | 2018-05-15 | 2018-11-09 | 三诺生物传感股份有限公司 | A kind of detector optical system |
| WO2019218735A1 (en) * | 2018-05-15 | 2019-11-21 | 三诺生物传感股份有限公司 | Optical system of detector |
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