CN202362519U - Integrated frame device with multiple optical filters - Google Patents
Integrated frame device with multiple optical filters Download PDFInfo
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- CN202362519U CN202362519U CN2011204918917U CN201120491891U CN202362519U CN 202362519 U CN202362519 U CN 202362519U CN 2011204918917 U CN2011204918917 U CN 2011204918917U CN 201120491891 U CN201120491891 U CN 201120491891U CN 202362519 U CN202362519 U CN 202362519U
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- optical
- optical filters
- optical filter
- integrated frame
- frame device
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Abstract
The utility model relates to an integrated device with optical filters, in particular to an integrated frame device with multiple optical filters for an optical detector with a fixed wavelength. The integrated frame device comprises an outer frame, N optical filters and (N+1) package gaskets, wherein the N optical filters with the same optical characteristics and outline dimensions are packaged in the outer frame, and the package gaskets are used for packaging the optical filters in the outer frame and separating adjacent optical filters to avoid scratch. Compared with a traditional single packaged optical filter, the integrated frame device has higher transmittance/cut-off efficiency ratio, so that sensitivity of the optical detector can be effectively improved, and the probability of dust and moisture interference in the optical filters is reduced. Besides, the integrated frame device is simple in structure, small in size, convenient in use and particularly applicable to optical detectors with fixed wavelengths for optical detection of an absorption type, fluorescence, phosphorescence, chemiluminescence and the like.
Description
Technical field
The present invention relates to a kind of optical filter integrating device, more particularly, relate to a kind of many optical filters integrated frame device that is used for fixing the wavelength optical detecting device.
Background technology
Along with developing rapidly of food security, environmental monitoring and life science, the detection technique of high sensitivity, high selectivity has become one of current research focus.Optical filter is a kind of important optical device, and it can make the light transmission of certain specific wavelength section, and finally arrives electrooptical device and convert electric signal output into, and the light of other wavelength is then by by detecting.In the fluorescence detector that adopts fixed wave length to detect, the performance of optical filter has determined the sensitivity of whole optical system to a great extent.
Transmitance and (often weigh by efficient with the OD value; OD=-log (transmitance of cut-off region)) is two important performance characteristic of optical filter.Wherein transmitance is represented the number percent that the light of target wavelength section passes through on optical filter, ends the number percent that on behalf of the light of cutoff wavelength section, efficient on optical filter, pass through.Transmitance is big more, and the signal of target wavelength section is strong more; High more by efficient (is that the cut-off region transmitance is low more; Also be that the OD value is big more); Disturb the light signal of section low more, promptly the background of system and noise level are low more, thereby make fluorescence detector obtain higher signal/noise ratio; Be higher sensitivity (chemical progress, 21 (2009): 1325-1334).Transmitance/can reflect directly that by the ratio (K) of efficient the performance of optical filter is good and bad, the K value is big more, and system sensitivity is high more.
Receive the restriction of material and processing conditions, the transmitance of present homemade optical filter is generally 80～90%, and OD value 3～4 is far below external like product.But homemade optical filter has tangible price advantage, its price even can reach 1/10th of external product, thereby in the compact optical detecting instrument, obtained to use widely; But its lower transmitance/end efficiency ratio to have restricted the sensitivity that belongs to detecting device to a certain extent.
Summary of the invention
The object of the present invention is to provide a kind of many optical filters integrated frame device, with N undamaged being integrated in the housing of optical filter with identical optical performance, thus the exponential growth of realization K value.This device can be applicable to adopt in the fluorescence detector of fixed wave length.
Be to realize above-mentioned purpose, the technical scheme that the present invention adopts is: a kind of many optical filters integrated frame device, comprise placing spaced optical filter in the tubular housing, between adjacent two optical filters by the encapsulation packing ring at interval.
Under the optimal way, each said optical filter is the circular filter of identical optical character and physical dimension.And quantity 2≤N≤5 of said optical filter; Under the optimum way, select 3 for use.
In addition; Preparation of the present invention for ease; And guarantee integrally-built fastness, a kind of optimal way of the present invention is to be positioned at said cylinder housing two ends and also to be provided with the encapsulation packing ring; And the said encapsulation packing ring that is positioned at two ends is fixed with a glue mode, and all the other be positioned at the middle part the encapsulation packing ring can fix also and can fix.
Principle of the present invention is, in detector system, uses N the optical filter with same optical properties, then light on this N optical filter transmitance and end efficient all with N exponent function relation, thereby K also exponent function relation, i.e. K ' (N optical filter)=K
N(single optical filter), thus can obtain higher transmittance/through the stack of simple number by efficiency ratio.Illustrating, is 90% to a slice transmitance, the optical filter of OD=4, K=9 * 10
-5When adopting two same optical filter stacks, K '=K
2=8.1 * 10
-9
Advantage of the present invention and good effect are:
1. with respect to single optical filter, its transmitance/obtain exponential raising by efficiency ratio, thus can effectively improve the sensitivity of place detection system.
2. with respect to simply the optical filter stack of N individual packages being used, this device adopts integrated design, and N optical filter is encapsulated in the housing, receives dust and the moist probability that disturbs thereby reduced optical filter, has improved serviceable life.
3. integrated design makes its volume smaller and more exquisite, and installing/dismounting is more convenient, is convenient to change light path and trouble hunting.
Description of drawings
Fig. 1 is the projection structure synoptic diagram of apparatus of the present invention perpendicular to the light ray propagation direction;
Fig. 2 be apparatus of the present invention be parallel to the light ray propagation direction partly cut open structural representation;
Fig. 3 is that apparatus of the present invention are applied to the plain flow injection spectrogram that is obtained of laser induced fluorescence detector analysis of fluorescence, and wherein: 201 is the spectrograms that adopt single optical filter to obtain, and 202 is the spectrogram that adopts the optical filter frame mounting acquisition of 3 integrated encapsulation;
Fig. 4 is used for the electrophoresis spectrogram of detector of fluorescence induced by light-emitting diode analysis of amino acid for apparatus of the present invention, and wherein: 301 is the lysine of FITC mark, and 302 is residual F ITC, and 303 is the phenylalanine of FITC mark, and 304 is the glycocoll of FITC mark.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Referring to illustrated in figures 1 and 2, a kind of many optical filters integrated frame device comprises a housing 101, a N optical filter 102 and N+1 encapsulation packing ring 103 (N=3 among the figure; ).Wherein N optical filter 102 is packaged in the housing 101; The first, N optical filter 102 is fixed in the housing 101 through encapsulation packing ring 103; Through encapsulation packing ring 103 at interval, make to have certain gap in the middle of the adjacent optical filter 102 between the adjacent optical filter 102 at interval 104 to avoid scratch.
As shown in the figure, the housing 101 of apparatus of the present invention is a cylindrical tubular body, and its internal diameter is a bit larger tham the external diameter of the optical filter 102 in being packaged in, and its length is a bit larger tham N optical filter 102 and N+1 the thickness summation that encapsulates packing ring 103 in being packaged in.The circular filter that said optical filter 102 has identical optical character and physical dimension for N (N >=2).Said encapsulation packing ring 103 is the ring-type thin slice, and its thickness is 0.1～0.5mm, and the external diameter of its external diameter and optical filter 102 is close, and its internal diameter is than the little 0.2～2mm of external diameter.Said N+1 encapsulation packing ring 103 the 1st, N+1 is fixed on the madial wall of housing 101 through a glue, all the other encapsulation packing rings 103 that are positioned at the middle part are used to isolate adjacent optical filter 102, can fix also and can fix.
During concrete the installation; The madial wall that earlier mode of first encapsulation packing ring 103 through a glue is fixed on housing 101 leans on edge; Then from another openend of housing 101 pack into successively first optical filter 102, second 103, the second optical filter 102 of encapsulation packing ring, the 3rd encapsulation packing ring 103.The rest may be inferred, packs into until N optical filter 102 and N+1 encapsulation packing ring 103, adopts some glue that N+1 encapsulation packing ring 103 is bonding with the madial wall of housing 101 at last, accomplishes encapsulation.
Application examples 1 laser induced fluorescence detector analysis of fluorescence is plain
Make up laser induced fluorescence detector, adopted the optical filter of monolithic encapsulation and the frame mounting of the same integrated encapsulation of optical filter of N sheet of the present invention (N=3 here) respectively, and carried out the flow injection contrast test.Analysis of spectra is seen Fig. 3.
Test condition: fluorescent dye: luciferin; Sample size: 2 μ L; Carrier fluid: water; Flow velocity: 20 μ L/min; Fused quartz kapillary: 365 μ m * 75 μ m i.d..
Test result: adopt the LIF system that should invent (N=3), with respect to the detection system that adopts monolithic encapsulation optical filter, its signal to noise ratio (S/N ratio) is brought up to 3 times; Getting signal to noise ratio (S/N ratio) is 3, and this detecting device is limited to 4 * 10 to the concentration detection of luciferin
-11Mol/L.
Application examples 2 detector of fluorescence induced by light-emitting diode are analyzed three seed amino acids
Make up detector of fluorescence induced by light-emitting diode, adopt the frame mounting of the same integrated encapsulation of optical filter of N sheet of the present invention (N=3 here), and carry out the test of capillary electrophoresis analysis three seed amino acids.Analysis of spectra is seen Fig. 4.
Test condition: fluorescent dye: FITC; Buffer solution: Na
2B
4O
7(10mM, pH 9.0); The fused quartz kapillary: 365 μ m * 50 μ m i.d. * 50/40cm (length overall/effectively); Separation voltage: 22kV.
Test result: getting signal to noise ratio (S/N ratio) is 3, and this detecting device is respectively 9 * 10 to the concentration detectability of lysine, phenylalanine and glycocoll
-9, 8.9 * 10
-9With 4.2 * 10
-9Mol/L.
The above; Be merely the preferable embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technician who is familiar with the present technique field is equal to replacement or change according to technical scheme of the present invention and inventive concept thereof in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.
Claims (6)
1. the device of optical filter integrated frame more than a kind is characterized in that: comprise fixedly placing spaced optical filter (102) in the tubular housing (101), between adjacent two optical filters (102) by encapsulation packing ring (103) at interval.
2. according to the said many optical filters integrated frame of claim 1 device, it is characterized in that: each said optical filter is the circular filter of identical optical character and physical dimension.
3. according to the said many optical filters integrated frame of claim 2 device, it is characterized in that: the quantity of said optical filter satisfies 2≤N≤5.
4. according to the said many optical filters integrated frame of claim 3 device, it is characterized in that: the quantity of said optical filter is 3.
5. according to the arbitrary said many optical filters integrated frame device of claim 1-4, it is characterized in that: be positioned at said cylinder housing (101) two ends and also be provided with said encapsulation packing ring (103), and the said encapsulation packing ring (103) that is positioned at two ends is fixed with a glue mode.
6. according to the arbitrary said many optical filters integrated frame device of claim 1-4, it is characterized in that: said encapsulation packing ring (103) is the ring-type thin slice, and thickness is 0.1～0.5mm, and the external diameter of external diameter and said optical filter (102) is close, and internal diameter is than the little 0.2～2mm of external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204918917U CN202362519U (en) | 2011-11-30 | 2011-11-30 | Integrated frame device with multiple optical filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204918917U CN202362519U (en) | 2011-11-30 | 2011-11-30 | Integrated frame device with multiple optical filters |
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| Publication Number | Publication Date |
|---|---|
| CN202362519U true CN202362519U (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204918917U Expired - Fee Related CN202362519U (en) | 2011-11-30 | 2011-11-30 | Integrated frame device with multiple optical filters |
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|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014190634A1 (en) * | 2013-05-31 | 2014-12-04 | 珠海市川富光学技术有限公司 | Multi-function cpl polarizing and adjustable nd filter |
| CN107561665A (en) * | 2017-09-26 | 2018-01-09 | 中国科学院长春光学精密机械与物理研究所 | Integrated form optical filter splicing apparatus and method |
| CN110248072A (en) * | 2019-07-02 | 2019-09-17 | 苏州全视智能光电有限公司 | A kind of optical filter device improving photoelectronic imaging equipment dynamic range |
| CN113571562A (en) * | 2021-07-23 | 2021-10-29 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
-
2011
- 2011-11-30 CN CN2011204918917U patent/CN202362519U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014190634A1 (en) * | 2013-05-31 | 2014-12-04 | 珠海市川富光学技术有限公司 | Multi-function cpl polarizing and adjustable nd filter |
| CN107561665A (en) * | 2017-09-26 | 2018-01-09 | 中国科学院长春光学精密机械与物理研究所 | Integrated form optical filter splicing apparatus and method |
| CN107561665B (en) * | 2017-09-26 | 2018-07-20 | 中国科学院长春光学精密机械与物理研究所 | Integrated form optical filter splicing apparatus and method |
| CN110248072A (en) * | 2019-07-02 | 2019-09-17 | 苏州全视智能光电有限公司 | A kind of optical filter device improving photoelectronic imaging equipment dynamic range |
| CN113571562A (en) * | 2021-07-23 | 2021-10-29 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN113571562B (en) * | 2021-07-23 | 2024-05-14 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20121130 |