Extralight path adjusting device for executing surface light source radiation analysis by electrochemical luminescence spectrum analyzer
By using an external optical path adjustment device with a multi-element design, the problem of focusing the light beam into the slit was solved, improving the light transmittance and detection sensitivity of the electrochemiluminescence spectrometer and enabling quantitative analysis with low detection limits.
Patent Information
- Application Number
- CN202520083555.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-14
AI Technical Summary
In existing electrochemiluminescence spectrometers, the light beam is difficult to focus effectively into the slit during the light signal collection process, resulting in insufficient light transmission and affecting detection sensitivity and accuracy.
The external optical path adjustment device, which employs a multi-element design, includes a collection base, plano-convex lenses A and B, which are fixed by retaining rings. The distance between the lenses is adjusted to reduce chromatic aberration and spherical aberration, improve the focusing effect of monochromatic light, and ensure that the beam enters the slit.
It improves the focusing effect of the light beam, reduces chromatic aberration and spherical aberration, increases the light transmittance and detection sensitivity of the spectrometer, enables quantitative analysis with low detection limits, and improves equipment performance.
Smart Images
Figure CN223910786U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of outer light path adjusting device for electrochemical luminescence spectrum analyzer execution surface light source radiation analysis, belong to the technical field of spectrometer. BACKGROUND
[0002] The basic process that electro / chemical luminescence spectrum analyzer collects spectrum signal is: ① electrolytic reagent luminescence;② light is collected to slit;③ it is dispersed by dispersion system and is spectrally analyzed;④ probe converts light signal into electric signal;⑤ read data.In this process, only light is collected to the slit of spectrum analyzer as far as possible, to guarantee the light quantity to maximum, so that the number of photons on the target surface of probe is maximum, therefore, how to improve the collection effect of light in slit becomes the problem that existing technology needs to solve urgently. SUMMARY
[0003] In view of the deficiencies of the prior art, the utility model provides a kind of outer light path adjusting device for electrochemical luminescence spectrum analyzer execution surface light source radiation analysis, and the characteristics of multiple element design reduce chromatic aberration, spherical aberration, and improve the focusing of monochromatic light, form smaller light spot, improve monochromatic performance, focus light to slit, guarantee the light quantity, improve product performance.
[0004] The technical scheme of the utility model is as follows:
[0005] A kind of outer light path adjusting device for electrochemical luminescence spectrum analyzer execution surface light source radiation analysis, including collection seat, plano-convex lens A, plano-convex lens B and lens sleeve, wherein, one end of lens sleeve is connected with collection seat, recess is provided in lens sleeve, internal thread is engraved on the side wall of recess, plano-convex lens A is fixed in the bottom of recess by snap ring A, and the upper side and the lower side of plano-convex lens B are respectively set in the middle part of internal thread by snap ring B and snap ring C.
[0006] The outer diameter of snap ring A, snap ring B and snap ring C is connected with internal thread by external thread.
[0007] According to the utility model, preferably, collection seat and lens sleeve are hollow inside, to facilitate light beam passing.
[0008] According to the utility model, preferably, the convex surface of plano-convex lens A faces collection seat, and the plane of plano-convex lens B faces collection seat.
[0009] According to the utility model, preferably, the focal length of plano-convex lens A is 40mm, the light transmission aperture is 25mm, and the working distance is 43.28mm.
[0010] According to the utility model, preferably, the focal length of plano-convex lens B is 30mm, the light transmission aperture is 25mm, and the working distance is 32.63mm.
[0011] The light box and the spectrum analyzer are prior art, the light box is arranged on the light inlet side of the spectrum analyzer, an electrolytic cell is arranged in the light box, an outer light path adjusting device is installed in the light box during use, a lens sleeve is installed on the bottom plate of the light box through screwing, the lens sleeve faces the slit of the spectrum analyzer, the collecting seat faces the electrolytic cell, the electrochemical reagent in the electrolytic cell is electrified to emit light, the light beam enters the slit through the outer light path adjusting device, the spectrum analyzer analyzes the light beam, and in specific application, the distance between the plano-convex lens B and the plano-convex lens A can be adjusted by rotating the clamping ring B and the clamping ring C according to requirements.
[0012] The utility model discloses the beneficial effect lies in:
[0013] The utility model discloses the multielement design reduces chromatic aberration, spherical aberration, and improves the focusing of monochromatic light, forms smaller light spot, improves the characteristic of monochromatic performance, focuses light to the slit, guarantees the light quantity, improves product performance.
[0014] Chromatic aberration reduction principle: the refractive index of the material depends on the incident wavelength, so the focal length of a single lens depends on the incident wavelength, resulting in a blurred focal point when a single lens is used with a white light source. This phenomenon is called chromatic aberration. The multielement design of the outer light path adjusting device partially compensates for chromatic aberration. The two plano-convex lenses have different dispersion degrees, and by matching the focal lengths, the chromatic aberration is offset.
[0015] Spherical aberration reduction principle: improve the focusing of monochromatic light. When light enters the plano-convex lens, it is first refracted on the flat surface, and then refracted on the convex surface. This double refraction process helps the light to focus better, thereby reducing spherical aberration.
[0016] Before using the light path adjusting device, the detection limit of Ru(bpy)3 2+ by electrochemiluminescence spectrometry is 500 pmol / L. After using the light path adjusting device, the detection limit of Ru(bpy)3 2+ by electrochemiluminescence spectrometry is 30 pmol / L. This device improves the performance of electrochemiluminescence spectrometry for detecting luminescent substances, increases the sensitivity of the equipment, and achieves a low detection limit for quantitative analysis experiments. It can be used to construct an ultra-sensitive electrochemiluminescence analysis method. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 is a schematic diagram of the utility model in use;
[0018] Fig. 2 is a schematic diagram of the utility model structure;
[0019] Wherein: 1, light box; 2, lens sleeve; 3, plano-convex lens B; 4, plano-convex lens A; 5, clamping ring A; 6, clamping ring B; 7, collecting seat; 8, clamping ring C. DETAILED DESCRIPTION
[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings, but is not limited thereto.
[0021] Example 1:
[0022] like Figs. 1-2 As shown, this embodiment provides an external optical path adjustment device for performing surface light source radiation analysis in an electrochemiluminescence spectrometer, including a collection seat 7, a plano-convex lens A4, a plano-convex lens B3, and a lens sleeve 2. One end of the lens sleeve 2 is connected to the collection seat 7, and a groove is provided inside the lens sleeve 2. An internal thread is engraved on the side wall of the groove. The plano-convex lens A4 is fixed to the bottom of the groove by a retaining ring A5. The upper and lower sides of the plano-convex lens B3 are respectively set in the middle of the internal thread by retaining rings B6 and C8.
[0023] The outer diameters of retaining rings A, B, and C are connected to internal threads via external threads.
[0024] The collector 7 and lens sleeve 2 are hollow inside to facilitate the passage of light beams.
[0025] The convex surface of plano-convex lens A4 faces the collecting base, and the flat surface of plano-convex lens B3 faces the collecting base.
[0026] The A4 plano-convex lens has a focal length of 40mm, an aperture of 25mm, and a working distance of 43.28mm.
[0027] The B3 plano-convex lens has a focal length of 30mm, an aperture of 25mm, and a working distance of 32.63mm.
[0028] The dark box 1 and the spectrometer are existing equipment. The dark box is set on the light-inlet side of the spectrometer, and an electrolytic cell is set inside the dark box. In use, the external optical path adjustment device is installed in the dark box, and the lens sleeve is screwed to the bottom plate of the dark box with the lens sleeve facing the slit of the spectrometer and the collection seat facing the electrolytic cell. The electrochemical reagent in the electrolytic cell emits light when energized. The light beam enters the slit after passing through the external optical path adjustment device, and the spectrometer performs beam analysis. In specific applications, the distance between the plano-convex lens B and the plano-convex lens A can be adjusted by rotating the retaining rings B and C as needed.
[0029] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An external optical path adjustment device for an electrochemiluminescence spectrometer to perform area light source radiation analysis, characterized in that, It includes a collecting seat, a plano-convex lens A, a plano-convex lens B and a lens sleeve, wherein one end of the lens sleeve is connected with the collecting seat, a groove is arranged in the lens sleeve, internal threads are engraved on the side wall of the groove, the plano-convex lens A is fixed on the bottom of the groove through a snap ring A, and the upper side and the lower side of the plano-convex lens B are arranged in the middle part of the internal threads through snap rings B and C respectively.
2. The external optical path adjustment device for performing the radiation analysis of the surface light source of the electrochemical luminescence spectrometer according to claim 1, wherein The collecting seat and the lens sleeve are hollow inside.
3. The external optical path adjustment device for performing a surface light source radiation analysis of an electrochemical luminescence spectrometer according to claim 1, wherein The convex surface of the plano-convex lens A faces the collecting seat, and the flat surface of the plano-convex lens B faces the collecting seat.
4. The external optical path adjustment device for performing a surface light source radiation analysis of an electrochemical luminescence spectrometer according to claim 1, wherein The focal length of the plano-convex lens A is 40 mm, the light aperture is 25 mm, and the working distance is 43.28 mm.
5. The external optical path adjustment device for performing a surface light source radiation analysis of an electrochemical luminescence spectrometer according to claim 1, wherein The focal length of the plano-convex lens B is 30 mm, the light aperture is 25 mm, and the working distance is 32.63 mm.