Optical module system for port detection device

Abstract

The invention belongs to the field of optics, and discloses an optical module system for a port 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, and the first optical path assembly and the second optical path assembly form a reflection mechanism. 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 invention, 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 invention relates to the field of optics, and in particular to an optical module system for a POCT detection device. Background Art

[0002] Existing POCT detection devices have many problems such as low energy utilization, messy and non-compact structure, which also leads to bottlenecks such as low detection accuracy, short device life, and difficulty in miniaturization. In this paper, the detection principle of POCT equipment and the characteristics of existing components are studied, and a set of optical module components with high integration, multi-channel optional, and can be disassembled and assembled according to actual needs is developed. Summary of the invention

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

[0004] To achieve the above object, the present invention provides the following technical solutions: A light module system for a POCT detection device comprises 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, wherein 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, wherein the optical path components comprise a light source, a condenser lens, a filter and a reflection unit which are arranged in sequence, wherein the reflection units in the first optical path component and the third optical path component are reflection mirrors, and the reflection units in the second optical path component and the fourth optical path component are second dichroic mirrors; 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 a 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 irradiate 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 irradiate the first dichroic mirror. The light emitted by the reflecting mechanism is reflected by the first dichroic mirror to the optical fiber splitter. The light emitted by the transmitting mechanism directly passes through the dichroic mirror to irradiate the optical fiber splitter, and the optical fiber splitter evenly distributes the light.

[0005] Furthermore, in the optical path component, 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 are incident on the first dichroic mirror at 45°.

[0006] 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 optical fiber splitter are connected at a right angle.

[0007] Furthermore, the third optical path component, the fourth optical path component, the first dichroic mirror, and the optical fiber splitter are arranged in sequence in the horizontal direction, and the four are connected in a straight line.

[0008] Furthermore, a first installation cavity for installing a reflection mechanism and a second installation cavity for installing all transmission mechanisms are provided in the shell, the first installation cavity and the second installation cavity form a right angle in the horizontal direction, the first dichroic mirror is located at the right-angle connection between the first installation cavity and the second installation cavity, and the optical fiber splitter is arranged at the outlet of the shell, which is located on one side of the first dichroic mirror.

[0009] Furthermore, the optical path component also includes a circuit board, and the light source is arranged on the circuit board.

[0010] Furthermore, the light source is an LED lamp.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is a highly integrated optical module component applied to POCT detection instruments, with multiple channels available, high energy utilization, and a compact structure, and can be disassembled and assembled according to actual needs. The module can provide multiple narrow-band light source outputs according to needs, and an external multi-channel optical fiber splitter can be connected. The light source band can be selected and adjusted, and multiplexing of a single light source can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the internal structure of the present invention.

[0013] Figure 2 Schematic diagram of the optical path of the present invention.

[0014] In the figure: 1 is a housing, 100 is a first mounting cavity, 101 is a second mounting cavity, 2a is a first optical path component, 2b is a second optical path component, 2c is a third optical path component, 2d is a fourth optical path component, 200 is a light source, 201 is a focusing lens, 202 is a filter, 203 is a reflector, 204 is a second dichroic mirror, 3 is a first dichroic mirror, and 4 is a fiber optic splitter. DETAILED DESCRIPTION

[0015] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 2 A light module system for a POCT detection device comprises a housing 1, in which four optical path components, a first dichroic mirror 3 and an optical fiber splitter 4 are arranged, 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.

[0017] Continue reading Figure 1 In one embodiment of the present invention, a first installation cavity 100 for installing a reflection mechanism and a second installation cavity 101 for installing a transmission mechanism are provided in a housing 1, the first installation cavity 100 and the second installation 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 installation cavity 100 and the second installation cavity 101, the optical fiber splitter 4 is provided at the exit of the housing 1, which is located on one side of the 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.

[0018] 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 are incident on the first dichroic mirror 3 at 45°.

[0019] Further, in one embodiment of the present invention, the optical path assembly further includes a circuit board, and the light source 200 is disposed on the circuit board. The light source 200 is preferably an LED lamp. The focusing lens 201 includes a plano-convex lens and a TIR focusing lens. The fiber optic splitter 4 can be replaced with 1×4, 1×8 or 1×16. The housing 1 and the fiber optic splitter 4 are assembled by a conventional mortise and tenon structure.

[0020] The components in each optical path component of the present invention can adopt different specifications to provide multiple narrow-band light source outputs to meet the needs of various fine detections. Each optical path component will be able to output a light signal of a specific band to achieve high-sensitivity and high-specificity detection.

[0021] In one embodiment of the present invention, the light source 200 of the first optical path component 2a adopts a central wavelength of 485nm / half-wave width of 25nm, and the corresponding filter 202 adopts a central wavelength of 470 (+2 / -3)nm / half-wave width of 30±2nm. The light source 200 of the second optical path component 2b adopts a central wavelength of 540nm / half-wave width of 35nm, and the corresponding filter 202 adopts a central wavelength of 527 (+2 / -3)nm / half-wave width of 20±2nm. The light source 200 of the third optical path component 2c adopts a central wavelength of 634nm / half-wave width of 20nm, and the corresponding filter 202 adopts a central wavelength of 622 (+2 / -3)nm / half-wave width of 40±2nm. The light source 200 of the fourth optical path component 2d adopts a central wavelength of 595nm / half-wave width of 80nm, and the corresponding filter 202 adopts a central wavelength of 570 (+2 / -3)nm / half-wave width of 20±2nm. The reflection area of ​​the first dichroic mirror 3 is 440nm-560nm, and the transmission area is 568nm-700nm. The reflection area of ​​the second dichroic mirror 204 in the reflection mechanism is 450nm-490nm, and the transmission area is 500-550nm. The reflection area of ​​the second dichroic mirror 204 in the transmission mechanism is 538nm-587nm, and the transmission area is 604-700nm. In other embodiments, the above parameters can be adjusted according to the detection requirements.

[0022] 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 a focusing lens 201, then filtered by a filter 202, and then reflected by a reflecting unit to a first dichroic mirror 3; in the reflecting mechanism, the light emitted by the first optical path component 2a is irradiated to the first dichroic mirror 3 through the second dichroic mirror 204 of the second optical path component 2b; in the transmitting mechanism, the light emitted by the third optical path component 2c is irradiated to the first dichroic mirror 3 through the second dichroic mirror 204 of the fourth optical path component 2d; the light emitted by the reflecting mechanism is reflected by the first dichroic mirror 3 to the optical fiber splitter 4; the light emitted by the transmitting mechanism is directly irradiated to the optical fiber splitter 4 through the dichroic mirror 3; and the optical fiber splitter 4 evenly distributes the light.

[0023] The present invention is a highly integrated optical module component applied to POCT detection instruments, with multiple channels available, and can be disassembled and assembled according to actual needs. The module can provide multiple narrow-band light source outputs according to needs, and externally connect a multi-channel optical fiber splitter. The light source band is optional and adjustable, and multiplexing of a single light source is achieved. The present invention has the following characteristics: 1) Highly integrated design: Develop a highly integrated optical module that includes all core components including multi-channel narrow-band light sources, control systems, and fiber splitter interfaces. The system is compact and lightweight, meeting the requirements of portable POCT devices.

[0024] 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.

[0025] 3) Modularity and disassembly and assembly: The modular structure that can be disassembled and assembled enables the optical module to be flexibly configured and expanded according to actual needs. This modular design is not only easy to install and maintain, but also can be quickly adjusted and replaced according to different detection needs, thus improving the efficiency of equipment use.

[0026] 4) Multiple narrow-band light source outputs: The optical module provides multiple narrow-band light source outputs to meet the needs of various fine detections. Each light source channel will be able to output a specific band of light signals to achieve high sensitivity and high specificity detection.

[0027] 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.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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), wherein 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), wherein 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, and 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, wherein 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 a reflection mechanism, the light emitted by the first optical path component (2a) passes through a second dichroic mirror (204) of a second optical path component (2b) and irradiates the first dichroic mirror (3); in a transmission mechanism, the light emitted by the third optical path component (2c) passes through a second dichroic mirror (204) of a 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 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 installation cavity (100) for installing a reflection mechanism and a second installation cavity (101) for installing all transmission mechanisms are arranged in the housing (1); the first installation cavity (100) and the second installation 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 installation cavity (100) and the second installation cavity (101); and the optical fiber splitter (4) is arranged 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 also includes 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.

Images