Optical device of fluorescence analyzer
By optimizing the combined design of the optical devices of the fluorescence analyzer and utilizing the semi-reflective and semi-transparent characteristics of the beam splitter, the emission and receiving optical paths are realized on the same optical axis, which solves the problems of complex structure, high cost and low conversion efficiency of existing devices, and realizes instrument miniaturization and accuracy assurance.
Patent Information
- Application Number
- CN202520011317.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing fluorescence analyzers have complex optical structures, high costs, low conversion efficiency, and difficulty in guaranteeing accuracy.
The design employs a combination of support frame, housing, LED light, collimating lens, photoelectric module, aperture, lens, narrowband filter, beam splitter and convex lens. By utilizing the semi-reflective and semi-transparent characteristics of the beam splitter, the emission and reception optical paths are realized on the same optical axis, simplifying the structure and improving conversion efficiency.
It achieves a compact structure, low cost, easy processing, manufacturing and installation, easy-to-guarantee accuracy, and high conversion efficiency.
Smart Images
Figure CN223756589U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fluorescent analysis appearance technical field more specifically relates to a kind of fluorescent analysis appearance optical device. BACKGROUND
[0002] As a quantitative detection method in vitro diagnostic field, fluorescent immunoassay technology has important clinical significance for rapid identification of bacterial and viral infections, postoperative monitoring, risk assessment of cardiovascular diseases and animal immunity.
[0003] However, the existing fluorescent analysis appearance optical device structure is complex, cost is higher, and conversion efficiency is lower, and precision is not easy to guarantee.
[0004] Therefore, to provide a kind of stable and reliable, simple structure fluorescent analysis appearance optical device is the problem that the person skilled in the art needs to solve urgently. UTILITY MODEL CONTENT
[0005] Therefore, the utility model provides a kind of fluorescent analysis appearance optical device, structure is simple, cost is lower, conversion efficiency is higher, and precision is easy to guarantee.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A kind of fluorescent analysis appearance optical device, including support frame, shell, LED lamp, collimating mirror, photoelectric module, diaphragm, lens, narrowband filter, light splitting piece, convex lens and reagent card, the shell is fixed on the support frame;The shell inside has horizontal installation groove, light guide hole and vertical mounting hole, the center line of the horizontal installation groove and the light guide hole coincide, the horizontal installation groove and the vertical mounting hole are vertically distributed and are communicated by the light guide hole;The LED lamp and the collimating mirror are sequentially installed in the horizontal installation groove from left to right;The photoelectric module, the diaphragm, the lens, the narrowband filter, the light splitting piece and the convex lens are sequentially installed in the vertical mounting hole from top to bottom, and the light splitting piece and the collimating mirror are located in the same horizontal direction;The reagent card has reagent groove, and the reagent card is horizontally installed on the support frame and the reagent groove is located directly below the vertical mounting hole.
[0008] Through the above technical scheme, the utility model has the beneficial effects that:
[0009] The light splitting piece is half-reflection and half-transmission, and the emitting light path and the receiving light path are realized on the same optical axis, the structure is simplified, the conversion efficiency is high, and the precision is easy to guarantee.
[0010] Further, the shell comprises a front cover, a rear cover and a mounting seat, the front cover and the rear cover are buckled and mounted together, the mounting seat is fixed on the inner wall of the rear cover, and the horizontal mounting groove, the light guide hole and the vertical mounting hole are formed between the mounting seat and the front cover.
[0011] Further, the light splitting sheet is at an angle of 45 degrees with the light guide hole.
[0012] Therefore, the optical device of the fluorescence analyzer has the following beneficial effects compared with the prior art:
[0013] 1) compact structure, lower cost, easy to realize miniaturization and portable work of the instrument;
[0014] 2) easy to manufacture and install, and the precision is easy to guarantee. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.
[0016] Fig. 1 The drawings are structural schematic diagrams of the optical device of the fluorescence analyzer provided by the present application;
[0017] Fig. 2 The drawings are structural schematic diagrams of the optical device of the fluorescence analyzer provided by the present application;
[0018] Fig. 3 The drawings are structural schematic diagrams of the optical device of the fluorescence analyzer provided by the present application; DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0020] As Figs. 1-3The utility model discloses a fluorescence analysis appearance optical device, including support frame 1, casing 2, LED lamp 3, collimating mirror 4, photoelectric module 5, diaphragm 6, lens 7, narrowband filter 8, light splitting piece 9, convex lens 10 and reagent card 11, casing 2 is fixed on support frame 1, the inside of casing 2 has horizontal installation groove 21, light guide hole 22 and vertical mounting hole 23, and the center line of horizontal installation groove 21 and light guide hole 22 coincides, and horizontal installation groove 21 and vertical mounting hole 23 are perpendicular distribution and are communicated through light guide hole 22, LED lamp 3 and collimating mirror 4 are installed in horizontal installation groove 21 from left to right in proper order, photoelectric module 5, diaphragm 6, lens 7, narrowband filter 8, light splitting piece 9 and convex lens 10 are installed in vertical mounting hole 23 from top to bottom in proper order, and light splitting piece 9 and collimating mirror 4 are located in the same horizontal direction, reagent card 11 has reagent groove 111, and reagent card 11 is horizontally installed on support frame 1 and reagent groove 111 is located directly below vertical mounting hole 23, the utility model discloses utilize the feature that light splitting piece 9 is half and half, realizes emitting light path and receiving light path on the same optical axis, and the structure is simplified, and conversion efficiency is high, and precision is easy to guarantee.
[0021] Specifically, the casing 2 includes a front cover 201, a rear cover 202 and a mounting seat 203, the front cover 201 and the rear cover 202 are buckled and installed together; the mounting seat 203 is fixed on the inner wall of the rear cover 202, and the horizontal installation groove 21, the light guide hole 22 and the vertical mounting hole 23 are formed between the mounting seat 203 and the front cover 201.
[0022] Specifically, the light splitting piece 9 and the light guide hole 22 form a 45° angle.
[0023] The working principle of the utility model is as follows:
[0024] The collimating mirror 4 converts the outgoing light of the LED lamp 3 into parallel light beams, forms a 4-6mm parallel light column through the light guide hole 22, the parallel light column is irradiated onto the light splitting piece 9, the light splitting piece 9 is installed at a 45° angle with the parallel light column, the parallel light column is reflected by the light splitting piece 9 and vertically irradiated downward onto the convex lens 10, the convex lens 10 forms a parallel light column again, and the parallel light column is irradiated onto the horizontally installed reagent card 11, the fluorescent substance on the reagent card 11 is excited to emit fluorescence, the fluorescence light path passes through the convex lens 10, the light splitting piece 9, the narrowband filter 8, the lens 7 and the diaphragm 6 upwardly and reaches the light receiving surface of the photoelectric module 5, and the detection and analysis are realized through the strength of the optical signal.
[0025] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the related parts can be referred to the method part.
[0026] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A fluorescence analyzer optical arrangement characterized by, The device comprises a support frame, a housing, an LED lamp, a collimating mirror, a photoelectric module, a diaphragm, a lens, a narrow-band filter, a light-splitting plate, a convex lens and a reagent card, the housing is fixed on the support frame; the housing has a horizontal installation slot, a light guide hole and a vertical installation hole inside, the center lines of the horizontal installation slot and the light guide hole coincide, the horizontal installation slot and the vertical installation hole are vertically distributed and communicate through the light guide hole; the LED lamp and the collimating mirror are sequentially installed in the horizontal installation slot from left to right; the photoelectric module, the diaphragm, the lens, the narrow-band filter, the light-splitting plate and the convex lens are sequentially installed in the vertical installation hole from top to bottom, and the light-splitting plate is located in the same horizontal direction as the collimating mirror; the reagent card has a reagent slot, the reagent card is horizontally installed on the support frame and the reagent slot is located directly below the vertical installation hole.
2. The optical arrangement of a fluorescence analyzer according to claim 1, characterized in that The housing comprises a front cover, a rear cover and a mounting seat, the front cover and the rear cover are snap-fitted together; the mounting seat is fixed on the inner wall of the rear cover, and the horizontal installation slot, the light guide hole and the vertical installation hole are formed between the mounting seat and the front cover.
3. The optical arrangement of a fluorescence analyser according to claim 1 or 2, c h a r a c t e r i s e d in that The light-splitting plate forms a 45° angle with the light guide hole.