CN112858669A - Laser detection device - Google Patents
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- CN112858669A CN112858669A CN202110438701.3A CN202110438701A CN112858669A CN 112858669 A CN112858669 A CN 112858669A CN 202110438701 A CN202110438701 A CN 202110438701A CN 112858669 A CN112858669 A CN 112858669A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/531—Production of immunochemical test materials
- G01N33/532—Production of labelled immunochemicals
- G01N33/533—Production of labelled immunochemicals with fluorescent label
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6486—Measuring fluorescence of biological material, e.g. DNA, RNA, cells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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Abstract
The application relates to a laser detection device, which belongs to the technical field of analysis and detection equipment and comprises an optical mechanism, a detection light path and a detection light path, wherein the detection light path is defined inside the optical mechanism and is used for light rays to pass through; a testing mechanism comprising: the test lamp comprises a light guide sheet, a concave hole formed in the light guide sheet and at least two test lamps arranged on the side part of the light guide sheet; the direction of illumination of test lamp is not the collineation, the shrinkage pool is seted up on the direction of illumination of test lamp, and the bottom of shrinkage pool is provided with the light reflection that is used for corresponding test lamp to the slope plane of opto-coupler and is used through the cooperation of test lamp and leaded light piece, the light that the test lamp sent jets into inside the leaded light piece, make the shrinkage pool inner wall luminous, and the light that the bottom surface of shrinkage pool sent jets into in detecting the light path, thereby can observe the light irradiation condition in the detection light path, the equipment factor that factors such as steam led to the fact in the light path has been reduced, the accuracy nature that the device detected has been improved.
Description
Technical Field
The application relates to the technical field of analysis and detection equipment, in particular to a laser detection device.
Background
The on-site rapid detection is uniformly named by POCT equipment technical professional committee of China medical equipment society on the basis of multiple expert demonstrations, and is defined as: a detection mode is carried out on a sampling site, and a detection result is quickly obtained by using a portable analysis instrument and a matched reagent; among them, the fluorescence immunoassay belongs to one of the field rapid tests, and usually employs a fluorescence immunoassay analyzer to perform fluorescence immunoassay.
The existing fluorescence immunochromatographic analyzer mainly adopts a fluorescence immunoassay method, wherein in the fluorescence immunoassay method, after fluorescence is filtered out of stray light emitted by the fluorescence immunochromatographic analyzer through a light filter, the fluorescence irradiates a test strip reaction area to excite and emit excitation light rays, the excitation light rays are refracted through a plano-convex lens and then pass through the light filter to remove impurity light rays generated in the excitation process, the impurity light rays are refracted through the plano-convex lens to converge a focus and are received by an optical coupler at the focus position, and the excitation light rays enter the receiving optical coupler and then are converted into voltage signals through operation.
With respect to the related art in the above, the inventors found that: when the fluorescence immunochromatographic analyzer is used, dust, water vapor and the like may exist in a light path where the excitation light is located, so that the excitation light is influenced to a certain extent, and the detection accuracy may be influenced.
Disclosure of Invention
In order to improve the accuracy that the device detected, this application provides a laser detection device.
The application provides a laser detection device adopts following technical scheme:
a laser inspection device, comprising:
an optical mechanism, which is internally provided with a detection light path for light to pass through;
a testing mechanism comprising:
the test lamp comprises a light guide sheet, a concave hole formed in the light guide sheet and at least two test lamps arranged on the side part of the light guide sheet;
the direction of illumination of test lamp is collineation not, the shrinkage pool is seted up on the direction of illumination of test lamp, just the bottom of shrinkage pool is provided with the slope plane that is used for reflecting the light of corresponding test lamp to the opto-coupler.
Through adopting above-mentioned technical scheme, before the device is examined, can use accredited testing organization to test in the detection light path, use through the cooperation of test lamp and leaded light piece, inside the light that the test lamp sent jets into the leaded light piece for the shrinkage pool inner wall is luminous, and the light that the bottom surface of shrinkage pool sent jets into the opto-coupler, thereby tests before detecting, has reduced the equipment factor that factors such as steam caused in the light path, has improved the accuracy nature that the device detected.
Optionally, a through hole is formed in the light guide sheet;
a light guide column is also arranged in the through hole, one side of the light guide column is a horizontal section, and the other side of the light guide column is an inclined section;
the horizontal tangent plane is parallel to the horizontal plane of the upper surface of the light guide plate;
the light guide column and the through hole form the concave hole.
By adopting the technical scheme, when the light guide sheet is manufactured, the through hole can be formed in the light guide sheet, and then the light guide column is inserted into the through hole, so that the light guide column and the through hole form the concave hole, and the manufacturing complexity of the light guide sheet is reduced.
Optionally, the testing mechanism includes a light shielding plate, and the light shielding plate is slidably connected to an inner wall at an entrance of the detection light path in the device.
Through adopting above-mentioned technical scheme, after accomplishing the detection light path test, need begin the inspection, because the shrinkage pool on the leaded light piece can cause the diffusion of light, and remove the light screen to covering the leaded light piece, can so that jet into the detection light that detects in the light path can not receive the influence of shrinkage pool to the accuracy nature that the device detected has been improved.
Optionally, the number of the concave holes is two.
Through adopting above-mentioned technical scheme, two shrinkage pools can improve the intensity of test light to can observe more clearly to detecting the light path.
Optionally, the optical mechanism includes a laser transmitter, an excitation component, a filter component and a receiving component;
the excitation assembly, the filtering assembly and the receiving assembly are all positioned in the detection light path, and the excitation assembly, the filtering assembly and the receiving assembly are sequentially arranged along the direction of light incidence in the detection light path;
the laser emitter is arranged in the device and used for emitting detection light;
the excitation assembly is used for receiving detection light rays and reflecting the detection light rays to emit excitation light rays;
the filter assembly is used for receiving exciting light rays and filtering the exciting light rays;
the receiving assembly is used for receiving the filtered excitation light, analyzing and processing the filtered excitation light and outputting an electric signal.
Through adopting above-mentioned technical scheme, arrange excitation subassembly, filtering component and receiving component in proper order according to the direction of detecting the light path, then use through the cooperation between laser emitter, excitation subassembly, filtering component and the receiving component, can accomplish whole testing process.
Optionally, the filter assembly includes an optical filter, a first plano-convex mirror and a second plano-convex mirror;
the first plano-convex mirror is positioned below the optical filter and close to the excitation assembly, and is used for receiving reflected light and gathering the reflected light;
the optical filter is used for filtering the reflected light;
the second plano-convex mirror is located above the optical filter and close to the receiving assembly, and is used for receiving the filtered reflected light and gathering the filtered reflected light.
By adopting the technical scheme, the first plano-convex mirror and the second plano-convex mirror perform secondary aggregation on the reflected light, so that the reflected light is prevented from being weak, or the reflected light filtered by the optical filter is weak, and therefore the possibility that certain errors occur in the detection result after the reflected light is received by the receiving module is caused, and the detection accuracy of the device is indirectly improved.
Optionally, the device further comprises a support component;
the support assembly comprises a first support cylinder, a second support cylinder and a third support cylinder;
the first supporting cylinder is connected with a second supporting cylinder, the second supporting cylinder is connected with a second plano-convex mirror and an optical filter, and the third supporting cylinder is connected with a first plano-convex mirror;
the axes of the first supporting cylinder, the second supporting cylinder and the third supporting cylinder are coincident.
Through adopting above-mentioned technical scheme, supporting component has played the supporting role to optical mechanism to guarantee the stability of detecting the light path, in the testing process can not appear, the condition that optical mechanism breaks down and drops, thereby improved the stability that the device detected.
In summary, the present application includes at least one of the following beneficial technical effects:
the light guide plate is matched with the test lamp, the concave hole is formed in the light guide plate, so that light emitted by the test lamp can be injected into the detection light path, if equipment factors such as water vapor exist in the detection light path, the light emitted by the test lamp can be influenced to a certain degree, otherwise, the device can be normally used, the mode of testing before detection is adopted, the influence of the equipment factors can be reduced, and the accuracy of detection of the device is improved.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a front view of an embodiment of the present application.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is an enlarged view of a portion B in fig. 3.
FIG. 5 is a top view of a light guide plate and a test lamp in an embodiment of the present application.
Description of reference numerals: 1. a housing; 2. a light guide sheet; 21. testing the lamp; 22. a visor; 23. concave holes; 24. a light guide pillar; 3. a laser transmitter; 31. testing a strip; 32. a first plano-convex mirror; 33. an optical filter; 34. a second plano-convex mirror; 35. a receiving component; 4. a support assembly; 41. a first support cylinder; 42. a second support cylinder; 43. and a third support cylinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiments of the present application will be described in further detail with reference to the drawings attached to the specification.
The embodiment of the application discloses laser detection device. Referring to fig. 1, 2 and 3, a laser detection device includes a housing 1, an optical mechanism and a support assembly 4 are disposed in the housing 1; the optical mechanism comprises a laser emitter 3, an excitation assembly, a filter assembly and a receiving assembly 35, and the support assembly 4 comprises a first support cylinder 41, a second support cylinder 42 and a third support cylinder 43.
The laser emitter 3 is used for emitting detection light; it is used for supplying the detection light path that detects light and pass through to inject in the casing 1, arouse the subassembly, filter assembly and receiving component 35 all are located the detection light path, and arouse the subassembly, filter assembly and receiving component 35 are arranged in proper order along the direction that light jets into in detecting the light path, arouse the subassembly and be located the detection light path entrance, there is certain angle between laser emitter 3 and the detection light path, make the detection light that laser emitter 3 launched can get into in the detection light path after arousing the subassembly reflection.
The reason for using the laser emitter 3 is that the laser emitted from the laser emitter 3 has a stable light source, high intensity and less stray light, and the use of the laser can not only solve the accuracy and consistency of the device, but also simplify the complexity of the optical mechanism, thereby reducing the cost of the device.
The excitation component comprises a test strip 31, a test strip reaction area is arranged on the test strip 31, and when the detection light emitted by the laser emitter 3 irradiates the test strip reaction area on the test strip 31, the test strip 31 excites and emits excitation light.
The filter assembly is positioned above the excitation assembly and used for receiving the excitation light, filtering the excitation light and emitting the filtered excitation light; the filter assembly includes a first plano-convex mirror 32, a filter 33, and a second plano-convex mirror 34.
Be provided with the first step that supplies the third to support a section of thick bamboo 43 and place in casing 1, the third supports a section of thick bamboo 43 and places on first step, first plano-convex mirror 32 is connected to the third and supports a section of thick bamboo 43, the subassembly is aroused to plane one side orientation of first plano-convex mirror 32, make the plane of excitation light perpendicular to first plano-convex mirror 32 inject into, and jet out from convex surface one side, first plano-convex mirror 32 has played the effect of gathering to excitation light, reduce because of factors such as laser emitter 3 or arouse the subassembly, it is weaker to lead to appearing excitation light, make the possibility that the error appears in the testing result.
The shell 1 is further provided with a second step for placing the first supporting cylinder 41, the first supporting cylinder 41 is placed on the second step, the first supporting cylinder 41 is respectively connected with the optical filter 33 and the second supporting cylinder 42, the second supporting cylinder 42 is positioned above the optical filter 33, the second supporting cylinder 42 is connected with the second plano-convex mirror 34, one side of the convex surface of the second plano-convex mirror 34 faces the optical filter 33, so that the filtered excitation light rays are incident perpendicularly to the convex surface of the second plano-convex mirror 34 and are emitted from one side of the plane, similarly, the second plano-convex mirror 34 plays a role in gathering the filtered excitation optical fibers, and the possibility of errors of detection results caused by the fact that the excitation light rays are weak after the optical filter 33 filters the excitation light rays is reduced.
One side of the plane of the second plano-convex mirror 34 is close to the receiving component 35, the receiving component 35 adopts an optical coupler, and the optical coupler receives an optical signal and converts the optical signal into an electrical signal, and outputs the electrical signal.
So far, the process of optical mechanism detection can be obtained, firstly, laser is emitted by the laser emitter 3, that is, detection light is emitted linearly and emitted to the test strip reaction area on the test strip 31, the test strip 31 is excited after receiving the detection light due to the chemical substance on the test strip 31 and reflects excitation light, the excitation light is emitted to the detection light path, and is emitted to the receiving component 35 after being collected by the first plano-convex mirror 32, filtered by the optical filter 33 and collected by the second plano-convex mirror 34; however, in the detection process, only one filter 33 is used, so that when there is moisture or dust in the detection light path, the excitation light is likely to be affected to some extent, and the excitation light is refracted or reflected, so that the excitation light is weak, and the detection result has a large error.
In order to solve the above problem, before the optical mechanism is used for detection, the internal condition of the detection optical path may be tested before detection, and in the embodiment of the present application, the test process is completed by the test mechanism.
Referring to fig. 3 and 4, the testing mechanism includes a light guide plate 2 and two testing lamps 21, the light guide plate 2 and the testing lamps 21 are both located at the entrance of the detection light path and above the test strip 31, and the light guide plate 2 and the testing lamps 21 are on the same horizontal plane; two concave holes 23 are arranged in the light guide sheet 2, the opening direction of the concave holes 23 faces the test strip 31, the bottom surfaces of the concave holes 23 face the inside of the detection light path, the bottom surfaces of the concave holes 23 are inclined planes, the test light emitted by the test lamps 21 is conducted in the light guide sheet 2, the test light contacts the concave holes 23, so that the side walls and the bottom surfaces of the concave holes 23 can emit light, the irradiation directions of the two test lamps 21 are not collinear, different test lamps 21 can illuminate different concave holes 23, the bottom surfaces and the test light form a certain angle at the moment, the bottom surfaces of the concave holes 23 become indirect light sources, the test light reflected by the bottom surfaces of the concave holes 23 is emitted into the detection light path, so that the test light enters the detection light path to test the environment in the detection light path, the optical coupler receives the test light, converts the light signal into an electric signal, and compares the electric, if the difference between the two is larger, the device factor exists in the detection optical path at the moment.
When testing the detection light path, the light that test lamp 21 sent jets into the detection light path after reflection and the refraction of leaded light piece 2 and shrinkage pool 23, if there is steam in the detection light path, equipment factors such as dust, then the light that test lamp 21 sent can receive certain influence, the motion trail that the interaction force between the steam molecule that exists can make the photon in the light and the steam this moment can receive the change, thereby make the direction of motion take place to deflect, thereby make light take place the scattering, just need carry out relevant processing to the device this moment, equipment factor scheduling problem can not appear in the assurance device, thereby can improve the accuracy nature that the device detected.
In the embodiment of the present application, the light guide plate 2 is a glass plate, and the test lamp 21 may be an LED lamp or a small laser; and two concave holes 23 are formed, so that the possibility that the test light is weak due to the equipment factors of the test lamp 21 is reduced, and the accuracy of the test process is improved.
Set up the sliding hole in casing 1, be provided with the slider in the sliding hole, and slider one side connects leaded light piece 2, when needs use leaded light piece 2 to test, promotes the slider and makes leaded light piece 2 remove to the entrance position that detects the light path to can test the detection light path.
It can be understood that the test lamp 21 is used for emitting test light, so the installation position of the test lamp 21 is not limited, the test lamp 21 can be a button installed inside the device and connected to the outer side of the shell 1 through a wire, or can be installed above the laser emitter 3, so that the test light is reflected to the light guide sheet 2 through the test strip 31 and then tested, or can be a push type test lamp 21 arranged at the bottom of the sliding hole, when the slider is pushed to enable the light guide sheet 2 to correspond to the bottom of the sliding hole, the light guide sheet 2 extrudes the test lamp 21 at the moment to enable the test lamp 21 to be opened, thereby the test light is emitted into the light guide sheet 2 to be tested; preferably, adopt in this embodiment to set up test lamp 21 in leaded light piece 2 one side, and be located same horizontal plane with leaded light piece 2, test lamp 21 is connected to the slider, and test lamp 21 connects leaded light piece 2, when needs test, opens test lamp 21, begins the test, when not needing the test, with leaded light piece 2 and test lamp 21 through the slider remove to leaving casing 1 can.
Referring to fig. 3, 4 and 5, it should be noted that, during the installation process of the test lamps 21, it is only necessary to turn on two test lamps 21, and each test lamp 21 illuminates the corresponding concave hole 23.
When testing is carried out, due to the existence of the concave holes 23 in the light guide sheet 2, the testing light is gathered at the bottom of the concave holes 23, the bottom surfaces of the concave holes 23 face the inside of the testing light path, so that the concave holes 23 become indirect light sources, the two concave holes 23 become light sources at the same time, and the intensity of the testing light which is emitted into the inside of the testing light path can be improved; so, the slope plane of shrinkage pool 23 bottom surface only need satisfy with test light be certain angle can, because the test lamp 21 that adopts in this application installs in light guide plate 2 one side, test light this moment and light guide plate 2 place horizontal plane parallel, therefore the slope plane of shrinkage pool 23 bottom and the angle between the light guide plate 2 place plane need keep between 0 to 90, and do not include 0 and 90 degrees
When the angle between the two is 0 degree, the bottom surface of the concave hole 23 is a plane parallel to the light guide plate 2, and the test light at this time can only be reflected and directly projected in the light guide plate 2, and cannot be refracted, and cannot be emitted into the detection light path.
When the angle between the two is 90 °, it is described that the bottom surface of concave hole 23 is a plane perpendicular to light guide sheet 2, and at this time, concave hole 23 is a through hole, and the condition is not satisfied, and the same is not true.
When the angle between the two is 30 degrees, the test light rays collected on the bottom surface of the concave hole 23 are weaker due to the smaller angle, so that the test light rays reflected and refracted by the concave hole 23 are weaker, and although the concave hole 23 at the moment can still be used as an indirect light source, the test cannot be carried out due to the weaker indirect light source.
When the angle between the two is 60 °, although most of the test light is collected on the bottom surface of the concave hole 23, the angle between the incident direction of the light emitted from the concave hole 23 as the indirect light source and the detection light path is too large due to the large angle, and the test light is refracted in the detection light path, so that the complete test cannot be performed on the inside of the detection light path.
Preferably, the angle that adopts in this embodiment is 45, the slope plane of 23 bottoms in shrinkage pools is 45 with the plane of 2 places of leaded light pieces, and the slope plane of 23 bottoms in two shrinkage pools is relative, test light this moment can guarantee after reflection and refraction that most light jets into inside the detection light path, and the angle of the test light of the interior detection light path of the reflection of this moment and between the detection light path is less, make detection light can shine to inside the detection light path, thereby carry out the overall test in the detection light path, test light loss this moment also is minimum, so use this angle, can improve the accuracy nature of test.
After accomplishing the device test, need use the device to carry out concentration detection, so this moment when light jets into the detection light path, shrinkage pool 23 can make light produce the dispersion, so set up light screen 22 in casing 1, light screen 22 sliding connection casing 1, after the test is accomplished, remove light screen 22 and make light screen 22 cover leaded light piece 2, prevent that shrinkage pool 23 from producing the influence to test light to lead to the condition of error to appear in the testing result, indirectly improved the accuracy nature of detection.
Because of the device itself belongs to comparatively accurate instrument, and accredited testing organization only includes leaded light piece 2, test lamp 21 and light screen 22, and accredited testing organization installs the entrance position at the detection light path, and this just makes leaded light piece 2 be less accurate device, and still need set up shrinkage pool 23 in the leaded light piece 2, and the preparation technology is comparatively complicated, provides a preparation flow of leaded light piece 2 here.
Firstly, a through hole is formed in the light guide sheet 2, then a glass column is taken out, and the area and the shape of the cross section of the glass column are matched with the through hole, so that the glass column can be inserted into the through hole; then, the end face of one end of the glass column is made into a smooth plane with an inclination angle of 45 degrees, the end part is inserted into the through hole of the light guide plate 2, and the end part is ensured not to exceed half of the thickness of the light guide plate 2, then the glass column is cut along the upper surface of the light guide plate 2, so that one end face of the light guide column 24 left in the through hole is a horizontal section, the other side of the light guide column is an inclined section, the horizontal section is parallel to the horizontal plane of the upper surface of the light guide plate 2, a concave hole 23 is formed in the space enclosed by the light guide column 24 and the inner wall of the through hole, and the inclined plane of the light guide column 24; by adopting the mode, the light guide sheet 2 can be manufactured rapidly, and the efficiency is high.
Use through the cooperation of leaded light piece 2 and light screen 22, through seting up shrinkage pool 23 on leaded light piece 2 for in the light that test lamp 21 sent can jet into the detection light path, test the detection light path, adopt this kind of mode of testing before the detection, can reduce the influence of equipment factor, improve the accuracy nature that the device detected.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the disclosure. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (7)
1. A laser inspection device, comprising:
an optical mechanism, which is internally provided with a detection light path for light to pass through;
a testing mechanism comprising:
the test lamp comprises a light guide sheet (2), a concave hole formed in the light guide sheet (2) and at least two test lamps (21) arranged on the side portion of the light guide sheet (2);
the direction of illumination of test lamp (21) is collineation not, set up on the direction of illumination of test lamp (21) shrinkage pool (23), just the bottom of shrinkage pool (23) is provided with the slope plane that is used for reflecting the light of corresponding test lamp (21) to the opto-coupler.
2. The laser detection device according to claim 1, wherein:
a through hole is formed in the light guide sheet (2);
a light guide column (24) is arranged in the through hole, one side of the light guide column (24) is a horizontal section, and the other side of the light guide column is an inclined section;
the horizontal tangent plane is parallel to the horizontal plane of the upper surface of the light guide plate (2);
the light guide column (24) and the through hole form the concave hole (23).
3. The laser detection device according to claim 2, wherein: the testing mechanism further comprises a light shielding plate (22), and the light shielding plate (22) is connected to the inner wall of the device at the inlet of the detection light path in a sliding mode.
4. The laser detection device according to claim 3, wherein: two concave holes (23) are arranged.
5. The laser detection device according to claim 1, wherein: the optical mechanism comprises a laser transmitter (3), an excitation assembly, a filter assembly and a receiving assembly (35);
the excitation assembly, the filtering assembly and the receiving assembly (35) are all positioned in the detection light path, and the excitation assembly, the filtering assembly and the receiving assembly (35) are sequentially arranged along the incident direction of light rays in the detection light path;
the laser emitter (3) is arranged in the device and used for emitting detection light;
the excitation assembly is used for receiving detection light rays and reflecting the detection light rays to emit excitation light rays;
the filter assembly is used for receiving exciting light rays and filtering the exciting light rays;
the receiving assembly (35) is used for receiving the filtered excitation light, analyzing the filtered excitation light and outputting an electric signal.
6. The laser detection device according to claim 5, wherein: the filter assembly comprises a filter (33), a first plano-convex mirror (32) and a second plano-convex mirror (34);
the first plano-convex mirror (32) is close to the excitation assembly and used for receiving excitation light and gathering the excitation light;
the optical filter (33) is positioned above the first plano-convex mirror (32) and is used for filtering exciting light rays;
the second plano-convex mirror (34) is located above the optical filter (33) and close to the receiving component (35), and is used for receiving the filtered excitation light and gathering the filtered excitation light.
7. The laser detection device according to claim 5, wherein: the device further comprises a support assembly (4);
the support assembly (4) comprises a first support cylinder (41), a second support cylinder (42) and a third support cylinder (43);
the first supporting cylinder (41) is connected with a second supporting cylinder (42), the second supporting cylinder (42) is connected with a second plano-convex mirror (34) and an optical filter (33), and the third supporting cylinder (43) is connected with a first plano-convex mirror (32);
the axes of the first support cylinder (41), the second support cylinder (42) and the third support cylinder (43) are coincident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110438701.3A CN112858669B (en) | 2021-04-23 | 2021-04-23 | Laser detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110438701.3A CN112858669B (en) | 2021-04-23 | 2021-04-23 | Laser detection device |
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| CN112858669A true CN112858669A (en) | 2021-05-28 |
| CN112858669B CN112858669B (en) | 2021-07-27 |
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| CN202110438701.3A Active CN112858669B (en) | 2021-04-23 | 2021-04-23 | Laser detection device |
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