An optical detection system for converging detection light rays

Abstract

This invention belongs to the field of optical detection technology for biological samples, specifically relating to an optical detection system for converging detection light. This invention provides an optical detection system for converging detection light, aiming to solve the problem of low detection accuracy caused by the inability of existing optical detection systems to converge light. An optical detection system for converging detection light includes a base; a detection cavity is provided within the base to prevent external light from entering and to accommodate at least a portion of a test tube; a chip for receiving light is provided on the base, and the inner wall of the detection cavity serves as a focusing surface that reflects the light emitted by the sample in the test tube onto the chip. By setting up a detection cavity, and ensuring that the inner wall of the detection cavity reflects the light emitted by the sample in the test tube onto the focusing surface of the chip, this invention allows more light emitted by the sample in the test tube to be reflected onto the chip, enabling the chip to receive more light and thus improving detection accuracy.

Description

Technical Field

[0001] This invention belongs to the field of optical detection technology for biological samples, and specifically relates to an optical detection system that converges detection light. Background Technology

[0002] Microplate-based enzyme-linked immunosorbent assays (ELISA) and chemiluminescent immunoassays are widely used in life sciences, medical research, and medical diagnostics.

[0003] However, existing detection systems cannot focus the light in luminescent immunoassay, resulting in less light entering the detection chip and consequently low detection accuracy. Summary of the Invention

[0004] This invention provides an optical detection system that converges detection light, aiming to solve the problem that existing optical detection systems cannot converge light, resulting in low detection accuracy.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An optical detection system for converging detection light rays, comprising a base;

[0007] The base is provided with a detection cavity that prevents external light from entering and accommodates at least a portion of the test tube;

[0008] The base is provided with a chip for receiving light, and the inner wall of the detection cavity is a light-concentrating surface that reflects the light emitted by the sample in the test tube onto the chip.

[0009] The base is also provided with a light shield to prevent external light from entering the detection cavity, and both the detection cavity and the test tube are located inside the light shield.

[0010] A further improved solution: the light-concentrating surface is curved.

[0011] Based on the above scheme: the light-concentrating surface is curved, the light-concentrating surface detection cavity is easy to process, and it can gather more light onto the chip, thereby improving the detection accuracy.

[0012] A further improved solution: the focusing surface is a surface fitted with multiple curved surfaces.

[0013] Based on the above scheme: the focusing surface is a surface fitted with multiple curved surfaces. The surface fitted with multiple curved surfaces has a better focusing effect, which can reflect light from all directions emitted from the test tube onto the chip, increasing the amount of light entering the chip and improving the detection accuracy.

[0014] A further improved solution: the cross-sectional shape of the detection cavity is elliptical, the chip is located at one focal point of the detection cavity, and the position of the light emitted by the test tube is located at the other focal point of the detection cavity.

[0015] Based on the above scheme: the cross-sectional shape of the detection cavity is elliptical, the chip is located at one focal point of the detection cavity, and the position of the light emitted by the test tube is located at the other focal point of the detection cavity. The detection cavity is easy to process, which reduces the manufacturing cost of the optical detection system.

[0016] A further improved solution: The base includes a base plate, the chip is mounted on the base plate, and a locator for positioning the test tube is provided on the base plate. The locator includes a detection part forming the detection cavity and a positioning part for positioning the test tube, and at least a portion of the detection cavity is located within the detection part.

[0017] Based on the above solution: the base includes a base plate, the chip is mounted on the base plate, the chip and the base plate will be assembled, and the chip can be easily replaced if it is damaged.

[0018] A further improved solution: The detection unit is provided with a positioning cylinder for positioning the test tube, and the positioning cylinder is in communication with the detection cavity.

[0019] Based on the above scheme: the detection unit is provided with a positioning cylinder for positioning the test tube. The positioning cylinder can conveniently position the test tube, and the test tube has the correct position in the detection cavity, so that the light emitted by the sample in the test tube can be focused onto the chip by the focusing surface.

[0020] A further improved solution: The test tube is provided with a positioning ring, the positioning ring protrudes from the outer wall of the test tube, and the positioning ring overlaps the upper end of the positioning cylinder.

[0021] Based on the above solution: the test tube is equipped with a positioning ring, and the test tube can be inserted into the positioning cylinder. The test tube is easy to assemble, and the optical detection system is easier to operate.

[0022] A further improved solution: the positioning cylinder and the detection unit are an integral structure.

[0023] Based on the above solution: the positioning cylinder and the detection unit are an integral structure, and the positioning cylinder has higher positional accuracy relative to the detection unit, thereby making the test tube have higher positional accuracy relative to the detection cavity.

[0024] A further improved solution: the light-blocking cover is snapped onto the base.

[0025] Based on the above solution: the light shield is snapped onto the base, and the light shield can be easily removed to replace different test tubes, making the optical detection system easier to operate.

[0026] A further improved solution: The base is provided with an extension extending into the light-blocking cover, the light-blocking cover is snapped onto the extension, and the detection cavity is located above the extension.

[0027] Based on the above solution: the base is provided with an extension extending into the light-blocking cover, and the light-blocking cover is snapped onto the extension. The extension is provided so that a part of the inner wall of the light-blocking cover contacts the side wall of the extension, thereby more effectively preventing external light from entering the detection cavity, reducing the interference of external light on the chip, and improving the detection accuracy.

[0028] The beneficial effects of this utility model are as follows:

[0029] This invention improves detection accuracy by setting up a detection cavity, with the inner wall of the detection cavity serving as a focusing surface that reflects the light emitted from the sample in the test tube onto the chip. This allows more light emitted from the sample in the test tube to be reflected onto the chip, enabling the chip to receive more light.

[0030] This invention, by setting a light-blocking cover, prevents external light from entering the detection cavity, reducing interference from external light on the chip and further improving detection accuracy. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For users of ordinary skills in the art, other related drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the internal structure of an optical detection system for converging detection light, according to this utility model.

[0033] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0034] Figure 3 This is a schematic diagram of the first direction of an optical detection system for converging detection light according to the present invention.

[0035] Figure 4 This is a schematic diagram of the second direction of an optical detection system for converging detection light rays according to this utility model.

[0036] Explanation of the labels in the diagram:

[0037] 1-Base; 11-Detection cavity; 111-Focusing surface; 12-Base plate; 13-Positioner; 131-Detection section; 132-Positioning section; 14-Extension section; 2-Chip; 3-Light shield; 4-Test tube; 41-Positioning ring. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. All other embodiments obtained by users of the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0039] refer to Figures 1 to 4 An optical detection system for converging detection light rays includes a base 1;

[0040] The base 1 is provided with a detection cavity 11 that prevents external light from entering and accommodates at least a portion of the test tube 4;

[0041] The base 1 is provided with a chip 2 for receiving light, and the inner wall of the detection cavity 11 is a light-concentrating surface 111 that reflects the light emitted by the sample in the test tube 4 to the chip 2.

[0042] The base 1 is also provided with a light shield 3 to prevent external light from entering the detection cavity 11. The detection cavity 11 and the test tube 4 are both located inside the light shield 3.

[0043] Test tube 4 should be made of a light-transmitting material so that the light emitted by the sample can pass through test tube 4 into the detection chamber 11.

[0044] Chip 2 is a common optical detection chip 2 in the existing technology.

[0045] The light-blocking cover 3 is made of opaque material to prevent external light from entering the detection cavity 11.

[0046] Wherein: the light-concentrating surface 111 is a curved surface. The curved surface can be a surface formed by a parabola or a surface fitted by other curves, used to reflect the light emitted by the sample onto the chip 2.

[0047] Wherein: the focusing surface 111 is a surface fitted with multiple curved surfaces. The multiple curved surfaces can be spliced ​​together in any direction, as long as they can reflect the light emitted from the sample in the test tube 4 onto the chip 2.

[0048] Wherein: the cross-sectional shape of the detection cavity 11 is elliptical, the chip 2 is located at one focal point of the detection cavity 11, and the position where the light emitted by the test tube 4 is located at the other focal point of the detection cavity 11.

[0049] refer to Figures 1 to 4 Specifically: the base 1 includes a base plate 12, the chip 2 is mounted on the base plate 12, and the base plate 12 is provided with a locator 13 for positioning the test tube 4. The locator 13 includes a detection part 131 forming the detection cavity 11 and a positioning part 132 for positioning the test tube 4. At least a portion of the detection cavity 11 is located in the detection part 131.

[0050] The positioning part 132 can be glued to the base plate 12, or the positioning part 132 can be an integral structure with the base plate 12, or the positioning part 132 can be fixed to the base plate 12 by threads.

[0051] Specifically: The detection unit 131 is provided with a positioning cylinder for positioning the test tube 4, and the positioning cylinder is in communication with the detection cavity 11.

[0052] Specifically: a positioning ring 41 is provided on the test tube 4. The positioning ring 41 protrudes from the outer wall of the test tube 4 and overlaps the upper end of the positioning cylinder. The positioning ring 41 and the test tube 4 can be an integral structure.

[0053] The contact surface between the positioning ring 41 and the positioning cylinder is a plane. That is, the positioning ring 41 and the positioning cylinder are in surface contact.

[0054] Specifically, the positioning cylinder and the detection unit 131 are an integral structure.

[0055] Wherein: the light-blocking cover 3 is snapped onto the base 1.

[0056] Specifically: the base 1 is provided with an extension 14 extending into the light-blocking cover, the light-blocking cover 3 is snapped onto the extension 14, and the detection cavity 11 is located above the extension 14.

[0057] A protruding ring can also be provided on the base 1, and a ring groove is formed between the protruding ring and the extension 14, and the lower end of the light shield 3 can be inserted into the ring groove.

[0058] Chip 2 can be fixed to base 1 with screws. A heat sink for dissipating heat from chip 2 can also be installed on base 1. The heat sink can be installed on base 1 with screws.

[0059] The working principle of this embodiment:

[0060] When performing optical testing, first remove the light shield 3, then insert the test tube 4 containing the sample into the testing cavity 11, and position the test tube 4 relative to the testing cavity 11 using the positioning ring 41 and the positioning cylinder.

[0061] Then, the light shield 3 is installed on the base 1. The light emitted by the sample in the test tube 4 passes through the test tube 4 and is reflected by the light-concentrating surface 111 and focused on the chip 2, so that more light can directly enter the chip 2, improving the detection accuracy.

[0062] This utility model is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this utility model. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this utility model are within the protection scope of this utility model.

Claims

1. An optical detection system that converges detected light rays, characterized by: Including the base; The base is provided with a detection cavity that prevents external light from entering and accommodates at least a portion of the test tube; The base is provided with a chip for receiving light, and the inner wall of the detection cavity is a light-concentrating surface that reflects the light emitted by the sample in the test tube onto the chip. The base is also provided with a light shield to prevent external light from entering the detection cavity, and both the detection cavity and the test tube are located inside the light shield.

2. The optical detection system of claim 1, wherein: The light-concentrating surface is curved.

3. The optical detection system of claim 1, wherein: The focusing surface is a surface fitted with multiple curved surfaces.

4. The optical detection system of claim 1, wherein: The detection cavity has an elliptical cross-sectional shape, the chip is located at one focal point of the detection cavity, and the light emitted by the test tube is located at the other focal point of the detection cavity.

5. The optical detection system of any one of claims 1 to 4, wherein: The base includes a base plate, the chip is mounted on the base plate, and a locator for positioning the test tube is provided on the base plate. The locator includes a detection part forming the detection cavity and a positioning part for positioning the test tube, and at least a portion of the detection cavity is located within the detection part.

6. The optical detection system of claim 5, wherein: The detection unit is provided with a positioning cylinder for positioning the test tube, and the positioning cylinder communicates with the detection cavity.

7. The optical detection system of claim 6, wherein: The test tube is provided with a positioning ring, which protrudes from the outer wall of the test tube and overlaps the upper end of the positioning cylinder.

8. The optical detection system for converging detection light according to claim 6, characterized in that: The positioning cylinder and the detection unit are an integral structure.

9. The optical detection system for converging detection light according to claim 1, characterized in that: The light-blocking cover is snapped onto the base.

10. An optical detection system for converging detection light according to claim 9, characterized in that: The base is provided with an extension that extends into the light-blocking cover, the light-blocking cover is snapped onto the extension, and the detection cavity is located above the extension.

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