Optical module system for port detection device

Abstract

The utility model belongs to the field of optics, and discloses an optical module system for a pooct detection device, which comprises a shell, a first optical path assembly, a second optical path assembly, a third optical path assembly, a fourth optical path assembly, a first dichroscope and an optical fiber splitter are arranged in the shell, the first optical path assembly and the second optical path assembly form a reflection mechanism, and the second optical path assembly and the fourth optical path assembly form a second dichroscope. The third light path assembly and the fourth light path assembly form a transmission mechanism, each light path assembly comprises a light source, a condensing lens, an optical filter and a reflection unit which are sequentially arranged, the reflection units in the first light path assembly and the third light path assembly are reflectors, and the reflection units in the third light path assembly and the fourth light path assembly are second dichroscopes. According to the utility model, multi-channel narrow-band light source output can be provided according to requirements, and a multi-channel optical fiber splitter is externally connected. The light source wave band can be selected and adjusted, and multiplexing of a single light source is achieved.

Description

Technical Field

[0001] The utility model relates to the field of optics, in particular to an optical module system for a POCT detection device. Background Art

[0002] Existing POCT detection devices suffer from numerous issues, including low energy efficiency and a cluttered, uncompact structure. These issues lead to low accuracy, short battery life, and difficulty miniaturizing the device. By studying the detection principles of POCT devices and the characteristics of existing components, we developed a highly integrated optical module with multiple channels that can be disassembled and assembled according to actual needs. Utility Model Content

[0003] The purpose of the present invention is to provide an optical module system for a POCT detection device to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A light module system for a POCT detection device includes a housing, wherein four optical path components, a first dichroic mirror, and a fiber optic splitter are arranged in the housing, wherein the four optical path components are respectively a first optical path component, a second optical path component, a third optical path component, and a fourth optical path component; the first optical path component and the second optical path component constitute a reflection mechanism, and the third optical path component and the fourth optical path component constitute a transmission mechanism; the optical path components include a light source, a condenser lens, a filter, and a reflection unit arranged in sequence; the reflection units in the first and third optical path components are reflectors, and the reflection units in the second and fourth optical path components are second dichroic mirrors;

[0006] The optical path configuration of the optical module system is as follows: the light source of each optical path component emits light, which is first focused by a focusing lens, then filtered by a filter, and then reflected by a reflecting unit to the first dichroic mirror. In the reflecting mechanism, the light emitted by the first optical path component passes through the second dichroic mirror of the second optical path component to illuminate the first dichroic mirror. In the transmitting mechanism, the light emitted by the third optical path component passes through the second dichroic mirror of the fourth optical path component to illuminate the first dichroic mirror. The light emitted by the reflecting mechanism is reflected by the first dichroic mirror to the optical fiber splitter, and the light emitted by the transmitting mechanism directly passes through the first dichroic mirror to illuminate the optical fiber splitter. The optical fiber splitter evenly distributes the light.

[0007] Furthermore, in the optical path assembly, the light source, the focusing lens, the filter, and the reflection unit are arranged in sequence from bottom to top. The reflection unit is arranged at an angle of 45° relative to the horizontal plane. The light reflected by the reflection unit is in a horizontal state. The light emitted by the reflection mechanism to the first dichroic mirror and the light emitted by the transmission mechanism to the first dichroic mirror are perpendicular in the horizontal direction and both enter the first dichroic mirror at 45°.

[0008] Furthermore, the first optical path component, the second optical path component, and the first dichroic mirror are arranged in sequence in the horizontal direction, and the first optical path component, the second optical path component, the first dichroic mirror, and the fiber optic splitter are connected at a right angle.

[0009] Furthermore, the third optical path component, the fourth optical path component, the first dichroic mirror, and the fiber optic splitter are arranged in sequence in the horizontal direction, and the four are connected in a straight line.

[0010] Furthermore, a first mounting cavity for mounting a reflective mechanism and a second mounting cavity for mounting all transmission mechanisms are provided in the shell. The first mounting cavity and the second mounting cavity form a right angle in the horizontal direction. The first dichroic mirror is located at the right-angle connection between the first mounting cavity and the second mounting cavity. The optical fiber splitter is provided at the outlet of the shell, which is located on one side of the first dichroic mirror.

[0011] Furthermore, the optical path component also includes a circuit board, and the light source is arranged on the circuit board.

[0012] Furthermore, the light source is an LED lamp.

[0013] Compared with existing technologies, the present invention offers the following advantages: a highly integrated, multi-channel optical module for point-of-care (POCT) testing instruments, featuring high energy efficiency, a compact structure, and the ability to be disassembled and assembled according to actual needs. This module can provide multiple narrow-band light outputs as needed, allowing for connection to an external multi-channel fiber optic splitter. This enables selectable and adjustable light source bands and multiplexing of a single light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the optical path of the utility model.

[0016] In the figure, 1 is the housing, 100 is the first mounting cavity, 101 is the second mounting cavity, 2a is the first optical path component, 2b is the second optical path component, 2c is the third optical path component, 2d is the fourth optical path component, 200 is the light source, 201 is the focusing lens, 202 is the filter, 203 is the reflector, 204 is the second dichroic mirror, 3 is the first dichroic mirror, and 4 is the fiber optic splitter. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 2 A light module system for a POCT detection device includes a housing 1, in which four optical path components, a first dichroic mirror 3 and a fiber optic splitter 4 are arranged. The four optical path components are a first optical path component 2a, a second optical path component 2b, a third optical path component 2c and a fourth optical path component 2d. The first optical path component 2a and the second optical path component 2b constitute a reflection mechanism, and the third optical path component 2c and the fourth optical path component 2d constitute a transmission mechanism. The optical path components include a light source 200, a focusing lens 201, a filter 202, and a reflection unit arranged in sequence. The reflection unit in the first optical path component 2a and the third optical path component 2c is a reflector 203, and the reflection unit in the second optical path component 2b and the fourth optical path component 2d is a second dichroic mirror 204.

[0019] Continue reading Figure 1 In one embodiment of the present utility model, a first mounting cavity 100 for mounting a reflection mechanism and a second mounting cavity 101 for mounting a transmission mechanism are provided in a housing 1. The first mounting cavity 100 and the second mounting cavity 101 form a right angle in the horizontal direction. The first dichroic mirror 3 is located at the right-angle connection between the first mounting cavity 100 and the second mounting cavity 101. The optical fiber splitter 4 is provided at the exit of the housing 1, which is located on one side of the first dichroic mirror 3. The first optical path component 2a, the second optical path component 2b, and the first dichroic mirror 3 are arranged in sequence in the horizontal direction. The first optical path component 2a, the second optical path component 2b, the first dichroic mirror 3, and the optical fiber splitter 4 are connected at a right angle. The third optical path component 2c, the fourth optical path component 2d, the first dichroic mirror 3, and the optical fiber splitter 4 are arranged in sequence in the horizontal direction, and the four are connected in a straight line.

[0020] Continue reading Figure 2 In one embodiment of the present invention, in each optical path component, the light source 200, the focusing lens 201, the filter 202, and the reflection unit are arranged in sequence from bottom to top. The reflection unit is arranged at an angle of 45° relative to the horizontal plane. The light reflected by the reflection unit is in a horizontal state. The light emitted by the reflection mechanism to the first dichroic mirror and the light emitted by the transmission mechanism to the first dichroic mirror 3 are perpendicular in the horizontal direction and both enter the first dichroic mirror 3 at a 45° angle.

[0021] Furthermore, in one embodiment of the present invention, the optical path assembly further includes a circuit board, on which the light source 200 is disposed. The light source 200 is preferably an LED. The focusing lens 201 comprises a plano-convex lens and a TIR focusing lens. The fiber optic splitter 4 can be replaced with a 1×4, 1×8, or 1×16 configuration. The housing 1 and the fiber optic splitter 4 are assembled using a conventional mortise and tenon joint structure.

[0022] The components of each optical path assembly of the utility model can adopt different specifications, providing multiple narrow-band light source outputs to meet the needs of various precision detection. Each optical path assembly will be able to output a light signal of a specific wavelength band to achieve high sensitivity and high specificity detection.

[0023] In one embodiment of the present invention, the light source 200 of the first optical path component 2a adopts a central wavelength of 485 nm and a half-wave width of 25 nm, and the corresponding filter 202 adopts a central wavelength of 470 (+2 / -3) nm and a half-wave width of 30±2 nm. The light source 200 of the second optical path component 2b adopts a central wavelength of 540 nm and a half-wave width of 35 nm, and the corresponding filter 202 adopts a central wavelength of 527 (+2 / -3) nm and a half-wave width of 20±2 nm. The light source 200 of the third optical path component 2c adopts a central wavelength of 634 nm and a half-wave width of 20 nm, and the corresponding filter 202 adopts a central wavelength of 622 (+2 / -3) nm and a half-wave width of 40±2 nm. The light source 200 of the fourth optical path component 2d adopts a central wavelength of 595 nm and a half-wave width of 80 nm, and the corresponding filter 202 adopts a central wavelength of 570 (+2 / -3) nm and a half-wave width of 20±2 nm. The first dichroic mirror 3 has a reflective range of 440 nm to 560 nm and a transmissive range of 568 nm to 700 nm. The second dichroic mirror 204 in the reflective mechanism has a reflective range of 450 nm to 490 nm and a transmissive range of 500 nm to 550 nm. The second dichroic mirror 204 in the transmissive mechanism has a reflective range of 538 nm to 587 nm and a transmissive range of 604 nm to 700 nm. In other embodiments, the above parameters can be adjusted based on detection requirements.

[0024] The working principle of the present invention is as follows: the light source 200 of each optical path component emits light, which is first focused by the focusing lens 201, then filtered by the filter 202, and then reflected by the reflection unit to the first dichroic mirror 3. In the reflection mechanism, the light emitted by the first optical path component 2a is transmitted through the second dichroic mirror 204 of the second optical path component 2b to illuminate the first dichroic mirror 3. In the transmission mechanism, the light emitted by the third optical path component 2c is transmitted through the second dichroic mirror 204 of the fourth optical path component 2d to illuminate the first dichroic mirror 3. The light emitted by the reflection mechanism is reflected by the first dichroic mirror 3 to the optical fiber splitter 4, and the light emitted by the transmission mechanism directly passes through the dichroic mirror 3 to illuminate the optical fiber splitter 4. The optical fiber splitter 4 evenly distributes the light.

[0025] This utility model is a highly integrated, multi-channel optical module for POCT testing instruments that can be disassembled and assembled according to actual needs. The module can provide multiple narrow-band light outputs as needed and connect to an external multi-channel fiber optic splitter. This enables selectable and adjustable light source bands and multiplexing of a single light source. This utility model has the following features:

[0026] 1) Highly integrated design: Develop a highly integrated optical module that includes all core components, including multiple narrow-band light sources, control systems, and fiber optic splitter interfaces. The system is compact and lightweight, meeting the requirements of portable POCT devices.

[0027] 2) Multi-channel optional, the optical module supports multi-channel light source output, allowing users to select the appropriate light source channel according to specific detection requirements. Each channel will be independently controlled to ensure the stability and reliability of its output.

[0028] 3) Modularity and disassembly and assembly: The modular structure allows for flexible configuration and expansion of optical modules based on actual needs. This modular design not only facilitates installation and maintenance but also allows for rapid adjustment and replacement based on different testing requirements, improving equipment efficiency.

[0029] 4) Multiple narrow-band light source outputs: The optical module provides multiple narrow-band light source outputs to meet the needs of various precision detection. Each light source channel will be able to output a light signal in a specific band to achieve high-sensitivity and high-specificity detection.

[0030] 5) External multi-channel fiber optic splitter: Design the external interface of the optical module to support the connection of multi-channel fiber optic splitters to ensure that optical signals can be efficiently transmitted and distributed to different detection channels.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical module system for a POCT detection device, characterized in that: The invention comprises a housing (1), wherein four optical path components, a first dichroic mirror (3) and an optical fiber splitter (4) are arranged in the housing (1), the four optical path components are respectively a first optical path component (2a), a second optical path component (2b), a third optical path component (2c) and a fourth optical path component (2d), the first optical path component (2a) and the second optical path component (2b) constitute a reflection mechanism, the third optical path component (2c) and the fourth optical path component (2d) constitute a transmission mechanism, the optical path components comprise a light source (200), a focusing lens (201), a filter (202) and a reflection unit which are arranged in sequence, the reflection unit in the first optical path component (2a) and the third optical path component (2c) is a reflection mirror (203), and the reflection unit in the second optical path component (2b) and the fourth optical path component (2d) is a second dichroic mirror (204); The optical path configuration of the optical module system is as follows: the light source (200) of each optical path component emits light, which is first focused by a focusing lens (201), then filtered by a filter (202), and then reflected by a reflection unit to a first dichroic mirror (3); in the reflection mechanism, the light emitted by the first optical path component (2a) passes through the second dichroic mirror (204) of the second optical path component (2b) and irradiates the first dichroic mirror (3); in the transmission mechanism, the light emitted by the third optical path component (2c) passes through the second dichroic mirror (204) of the fourth optical path component (2d) and irradiates the first dichroic mirror (3); the light emitted by the reflection mechanism is reflected by the first dichroic mirror (3) to a fiber optic splitter (4); the light emitted by the transmission mechanism directly passes through the first dichroic mirror (3) and irradiates the fiber optic splitter (4); and the fiber optic splitter (4) evenly distributes the light.

2. The optical module system for a POCT detection device according to claim 1, characterized in that: In the optical path component, a light source (200), a focusing lens (201), a filter (202), and a reflection unit are arranged in sequence from bottom to top. The reflection unit is arranged at an angle of 45° relative to a horizontal plane. The light reflected by the reflection unit is in a horizontal state. The light emitted by the reflection mechanism to the first dichroic mirror and the light emitted by the transmission mechanism to the first dichroic mirror (3) are perpendicular in the horizontal direction and both are incident on the first dichroic mirror (3) at an angle of 45°.

3. The optical module system for a POCT detection device according to claim 1, characterized in that: The first optical path component (2a), the second optical path component (2b), and the first dichroic mirror (3) are arranged in sequence in the horizontal direction, and the first optical path component (2a), the second optical path component (2b), the first dichroic mirror (3), and the optical fiber splitter (4) are connected at a right angle.

4. The optical module system for a POCT detection device according to claim 1, characterized in that: The third optical path component (2c), the fourth optical path component (2d), the first dichroic mirror (3), and the optical fiber splitter (4) are arranged in sequence in the horizontal direction, and the four are connected in a straight line.

5. The optical module system for a POCT detection device according to claim 1, characterized in that: A first mounting cavity (100) for mounting a reflective mechanism and a second mounting cavity (101) for mounting all transmission mechanisms are provided in the housing (1); the first mounting cavity (100) and the second mounting cavity (101) form a right angle in the horizontal direction; the first dichroic mirror (3) is located at the right-angled connection between the first mounting cavity (100) and the second mounting cavity (101); and the optical fiber splitter (4) is provided at the outlet of the housing (1), which is located on one side of the first dichroic mirror (3).

6. The optical module system for a POCT detection device according to claim 1, characterized in that: The optical path component further comprises a circuit board, and the light source (200) is arranged on the circuit board.

7. The optical module system for a POCT detection device according to claim 1, characterized in that: The light source (200) is an LED lamp.

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