CN220188367U

CN220188367U - Light transmittance detection device

Info

Publication number: CN220188367U
Application number: CN202320611713.6U
Authority: CN
Inventors: 汤坤; 刘宏欣; 刘玉龙; 步海军
Original assignee: Suzhou Institute Of Metrology
Current assignee: Suzhou Institute Of Metrology
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-12-15
Anticipated expiration: 2033-03-24

Abstract

The utility model provides a light transmittance detection device, which comprises a light source assembly, a support assembly, a driving assembly and a detection assembly, wherein the light source assembly is arranged on the support assembly; a light transmittance detection light path is arranged between the light source component and the detection component; the support component can be connected with the object to be detected, and the object to be detected is positioned on the light transmittance detection light path under the condition that the object to be detected is connected with the support component; the driving assembly is in transmission connection with the supporting assembly, and under the driving of the driving assembly, the supporting assembly can rotate relative to the light source assembly, and then the object to be tested can be driven to rotate relative to the light source assembly, so that the angle of the emergent light beam of the light source assembly entering the object to be tested can be changed. The light transmittance detection device provided by the utility model not only can realize continuous adjustment of the angle of the emergent light beam entering the object to be detected, but also can realize detection of light transmittance under different angles, and can improve the accuracy of angle adjustment of the emergent light beam entering the object to be detected.

Description

Light transmittance detection device

Technical Field

The utility model relates to the technical field of optics, in particular to a light transmittance detection device.

Background

With the rapid development of China in the fields of artificial intelligence, video imaging, mobile phone display and the like, the requirements on optical devices used in equipment are also increasing, and the influence of incident light with different angles on the optical devices needs to be considered, so that the requirements on the detection of the light transmittance of the optical devices under different angles are increasing.

At present, although the conventional light transmittance detection device can change the angle of incident light of an optical device, the light transmittance detection device can only be manually realized, has poor precision and affects the accuracy of a final measurement result.

Disclosure of Invention

The utility model provides a light transmittance detection device which can not only realize continuous adjustment of the angle of an outgoing light beam entering an object to be detected, but also realize detection of light transmittance under different angles, and can also improve the accuracy of angle adjustment of the outgoing light beam entering the object to be detected.

The utility model provides a light transmittance detection device, which comprises a light source assembly, a support assembly, a driving assembly and a detection assembly, wherein the light source assembly is arranged on the support assembly;

a light transmittance detection light path is arranged between the light source component and the detection component; the support component can be connected with an object to be detected, and the object to be detected is positioned on the light transmittance detection light path under the condition that the object to be detected is connected with the support component;

the driving assembly is in transmission connection with the supporting assembly, and under the driving of the driving assembly, the supporting assembly can rotate relative to the light source assembly, and then can drive the object to be tested to rotate relative to the light source assembly, so that the angle of the emergent light beam of the light source assembly entering the object to be tested is changed.

Further, the light transmittance detection device further comprises a control component, and the control component is electrically connected with the driving component.

Further, the light transmittance detection device further comprises a switching platform, and the switching platform is arranged between the driving assembly and the supporting assembly;

one end of the switching platform far away from the supporting component is in transmission connection with the driving component, and one end of the switching platform far away from the driving component is in fixed connection with the supporting component.

Further, the light source assembly comprises a first detection light source and a second detection light source, and the first detection light source and the second detection light source are respectively and electrically connected with the control assembly;

the first detection light source can emit a first emergent light beam, and the first emergent light beam can be emitted to the detection assembly through the object to be detected;

the second detection light source can emit a second emergent light beam, and the second emergent light beam can be emitted to the detection assembly through the object to be detected.

Further, the detection assembly comprises a first photoelectric detector and a second photoelectric detector, and the first photoelectric detector and the second photoelectric detector are respectively and electrically connected with the control assembly.

Further, the light transmittance detection device further comprises a light splitting component, and the light splitting component is electrically connected with the control component;

the light splitting assembly is arranged on the light transmittance detection light path, and outgoing light beams of the light source assembly can sequentially pass through the light splitting assembly and the object to be detected to irradiate the detection assembly.

Further, the light transmittance detection device further comprises an optical platform, and the light source assembly, the driving assembly and the detection assembly are respectively and fixedly connected with the optical platform.

Further, the driving assembly comprises a stepping motor, and the transmission output end of the stepping motor is fixedly connected with the switching platform.

Further, the support assembly comprises a diaphragm, and the diaphragm is fixedly connected with the switching platform.

Further, the object to be measured can be adhered to the support assembly.

The light transmittance detection device provided by the utility model has the following beneficial effects:

the light transmittance detection device comprises a light source assembly, a support assembly, a driving assembly and a detection assembly; a light transmittance detection light path is arranged between the light source component and the detection component; the support component can be connected with the object to be detected, and the object to be detected is positioned on the light transmittance detection light path under the condition that the object to be detected is connected with the support component, so that the outgoing light beam of the light source component can be emitted to the detection component through the object to be detected, and the detection component can detect the light transmittance of the object to be detected; the driving assembly is in transmission connection with the supporting assembly, the supporting assembly can rotate relative to the light source assembly under the driving of the driving assembly, and then the object to be detected can be driven to rotate relative to the light source assembly, so that the angle of the emergent light beam of the light source assembly, which is emitted into the object to be detected, is changed, the angle of the emergent light beam, which is emitted into the object to be detected, can be continuously adjustable, and further, the detection of light transmittance under different angles is realized, and the accuracy of the angle adjustment of the emergent light beam, which is emitted into the object to be detected, can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a light transmittance detecting device according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a partial structure of a light transmittance detection device according to an embodiment of the utility model.

The following supplementary explanation is given to the accompanying drawings:

10-a light source assembly; 20-a support assembly; 30-a drive assembly; 40-detecting assembly; 50-a control assembly; 60-switching platform; 70-an optical platform; 80-optical path assembly.

Detailed Description

In order to enable those skilled in the art to better understand the present utility model, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present utility model with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the utility model. In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may include one or more of the feature, either explicitly or implicitly. Moreover, the terms "first," "second," and the like, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

In order to facilitate the explanation of the advantages of the light transmittance detection device in the embodiments of the present utility model, the technical solution of the embodiments of the present utility model is described in detail, and first, the related content of the prior art is summarized:

at present, the light transmittance measuring instrument and the spectrophotometer are conventional detection devices for measuring light transmittance, and the device has the advantages of strong operability, good stability, high reliability and the like, but the existing light transmittance detection device has the following problems: (1) The general light transmittance detection device can only test a conventional size sample (5 mm is 5 mm), a large size sample cannot be measured, and the detection requirement of the light transmittance of the large size sample is difficult to meet; (2) The light source component and the detection component in the existing light transmittance detection device are fixed, when a sample to be detected is tested, the light path can only be received by the detection component perpendicular to the surface of the sample to be detected, and the detection requirements of light transmittance under different angles can not be met; (3) Some devices can change the angle of incident light of a sample to be measured, but have poor precision, and can only be manually realized, so that the accuracy of a final measurement result is affected; (4) Most of common light transmittance measuring instruments can only test the light transmittance of visible light wave bands and cannot meet the detection requirements of ultraviolet wave bands and near infrared wave bands.

In view of the defects of the prior art, the light transmittance detection device not only can realize continuous and adjustable angles of the emergent light beams entering the object to be detected, but also can flexibly realize the detection of the light transmittance under different angles and can improve the accuracy of the angle adjustment of the emergent light beams entering the object to be detected; in addition, the light detection in the ultra-long wave band range can be realized, and the use flexibility of the light transmittance detection device is further improved.

The following describes the technical scheme in the embodiment of the utility model with reference to fig. 1-2.

Referring to fig. 1, an embodiment of the present utility model provides a light transmittance detecting device, which includes a light source assembly 10, a support assembly 20, a driving assembly 30 and a detecting assembly 40; a light transmittance detection light path is arranged between the light source assembly 10 and the detection assembly 40; the support component 20 can be connected with an object to be detected, and the object to be detected is positioned on the light transmittance detection light path under the condition that the object to be detected is connected with the support component 20; the driving assembly 30 is in transmission connection with the supporting assembly 20, and under the driving of the driving assembly 30, the supporting assembly 20 can rotate relative to the light source assembly 10, and then the object to be tested can be driven to rotate relative to the light source assembly 10, so that the angle of the emergent light beam of the light source assembly 10 entering the object to be tested can be changed.

In some embodiments, the object to be measured can be fixed on the support assembly 20, so that the light beam emitted from the light source assembly 10 is emitted to the detection assembly 40 through the object to be measured, and the detection assembly 40 can detect the light transmittance of the object to be measured.

In some embodiments, the driving component 30 can drive the supporting component 20 to rotate in whole circle, that is, the driving component 30 can drive the supporting component 20 to rotate by 360 degrees, so as to realize continuous adjustable angle of the emergent beam entering the object to be measured, and further realize detection of light transmittance under the angle of 0 ° -180 °; the light transmittance of the object to be measured is 0-100%.

Specifically, the light source assembly 10, the support assembly 20 and the detection assembly 40 may be sequentially arranged at intervals, and the support assembly 20 is disposed between the light source assembly 10 and the detection assembly 40.

In particular, the object to be measured may be an optical device.

In the embodiment of the present utility model, the light transmittance detecting device further includes a control component 50, where the control component 50 is electrically connected to the driving component 30.

Further, the control assembly 50 can control the driving assembly 30 to rotate, and the supporting assembly 20 can drive the object to be measured to rotate under the driving of the driving assembly 30, so as to adjust the angle of the outgoing beam entering the object to be measured.

Further, the rotation accuracy of the support assembly 20 may be 0.01 °, so that the accuracy of the angle adjustment of the outgoing beam incident on the object to be measured can be improved.

In the embodiment of the present utility model, referring to fig. 2, the light transmittance detection device further includes a switching platform 60, where the switching platform 60 is disposed between the driving assembly 30 and the supporting assembly 20; one end of the adapting platform 60 far away from the supporting component 20 is in transmission connection with the driving component 30, and one end of the adapting platform 60 far away from the driving component 30 is fixedly connected with the supporting component 20. In this way, the reliability and flexibility of the connection of the drive assembly 30 and the support assembly 20 can be improved.

Specifically, the adaptor platform 60 is capable of adaptor the output of the drive assembly 30 while being capable of carrying and securing the support assembly 20.

In some embodiments, the adaptor platform 60 is provided with a first connection position and a second connection position, and the driving assembly 30 is in transmission connection with the adaptor platform 60 through the first connection position; the support assembly 20 is fixedly connected with the adapting platform 60 through a second connection position.

Specifically, the connection manner of the adapting platform 60 and the support assembly 20 includes, but is not limited to, screwing, clamping, welding, riveting and cementing.

Specifically, referring to fig. 2, the adapting platform 60 may be a cylindrical adapting platform, or may be another adapting platform with another shape to adapt to different driving assemblies 30 and supporting assemblies 20.

It should be noted that, the size and shape of the adapting platform 60 are according to the practical situation, and the utility model is not limited to the size and shape of the adapting platform 60.

In the embodiment of the present utility model, the light source assembly 10 includes a first detection light source and a second detection light source, and the first detection light source and the second detection light source are respectively electrically connected with the control assembly 50; the first detection light source can emit a first emergent light beam, and the first emergent light beam can be emitted to the detection component 40 through the object to be detected; the second detection light source can emit a second outgoing light beam, and the second outgoing light beam can be emitted to the detection component 40 through the object to be detected.

Further, the control component 50 can control the first detection light source to emit a first outgoing beam; the control assembly 50 is capable of controlling the second detection light source to emit a second emission light beam.

Further, the first outgoing beam and the second outgoing beam may cover at least a 200-3000nm band range.

In some specific embodiments, the first detection light source may be a deuterium lamp, and the first outgoing beam emitted by the deuterium lamp may be ultraviolet light with a wavelength range of 200-400 nm; the second detection light source can be a halogen lamp, and the second emergent light beam emitted by the halogen lamp can be visible light with the wave band range of 400-800nm and near infrared light with the wave band range of 800-2500 nm; correspondingly, the light source assembly 10 can be a direct current stabilized voltage light source formed by combining a deuterium lamp and a halogen lamp, so that the light source assembly 10 can be used in a plug-and-play manner, and the stability of the light source assembly 10 is more than 99.8%.

In the embodiment of the present utility model, the detecting assembly 40 includes a first photodetector and a second photodetector, and the first photodetector and the second photodetector are electrically connected to the control assembly 50, respectively.

Further, the control component 50 can control the first photodetector and the second photodetector to perform light detection within a corresponding wavelength range.

Further, the first photodetector and the second photodetector may at least cover the light detection in the 200-3000nm band range.

In some specific embodiments, the first photodetector may be a silicon detector that may detect light in the 200-1100 band range; the second photodetector may be a lead sulfide detector that detects light in the 800-3000 band range.

In the embodiment of the utility model, the light transmittance detection device further comprises a light splitting component, and the light splitting component is electrically connected with the control component 50; the beam splitter is disposed on the light transmittance detection path, and the outgoing beam of the light source assembly 10 can be sequentially emitted to the detection assembly 40 through the beam splitter and the object to be detected.

Further, the control component 50 can adjust the bandwidth of the beam splitting component to enable the beam splitting component to perform the target beam splitting.

In some particular embodiments, the light splitting assembly may include a monochromator.

In the embodiment of the present utility model, the light transmittance detection device further includes a light path component 80, where the light path component 80 can effectively reduce the influence of stray light on the detection result, so as to implement that the outgoing beam of the light source component 10 passes through the object to be detected in the form of collimated light and is further received by the detection component 40.

In particular, the optical path assembly 80 may include a collimator, a enclosing optical path channel, and the like.

In the embodiment of the present utility model, the light transmittance detection device further includes an optical platform 70, and the light source assembly 10, the driving assembly 30 and the detection assembly 40 are fixedly connected with the optical platform 70 respectively. In this manner, the relative positions of the light source assembly 10, the driving assembly 30, and the detecting assembly 40 can be fixed.

Specifically, the optical platform 70 may be supported by a plurality of air-floating vibration isolation devices, which can realize air-floating vibration isolation of the optical platform 70, so as to provide a stable environment for the light transmittance detection device.

Specifically, the optical stage 70 may be a square support stage.

In the embodiment of the present utility model, the driving assembly 30 includes a stepper motor, and a transmission output end of the stepper motor is fixedly connected with the switching platform 60.

Specifically, the transmission output end is fixedly connected with the adapting platform 60, so that the transmission output end can drive the adapting platform 60 to rotate, and further drive the supporting component 20 to rotate.

In the embodiment of the present utility model, the support assembly 20 includes a diaphragm, and the diaphragm is fixedly connected to the adapting platform 60.

Specifically, the diaphragm is fixedly connected to the adapting platform 60 through the second connection position.

In an embodiment of the present utility model, the object to be tested can be adhered to the support member 20. Therefore, the flexibility of connection can be improved, and the objects to be tested without the size can be flexibly adapted to connection.

The light transmittance detection device provided by the embodiment of the utility model has the following beneficial effects:

1. the driving assembly is in transmission connection with the supporting assembly, the supporting assembly can rotate relative to the light source assembly under the driving of the driving assembly, and then the object to be detected can be driven to rotate relative to the light source assembly, so that the angle of the emergent light beam of the light source assembly, which is emitted into the object to be detected, is changed, the angle of the emergent light beam, which is emitted into the object to be detected, can be continuously adjustable, and further the light transmittance under different angles can be flexibly detected, and the accuracy of the angle adjustment of the emergent light beam, which is emitted into the object to be detected, can be improved.

2. The switching platform 60 is arranged between the driving assembly 30 and the supporting assembly 20; one end of the switching platform 60 far away from the support assembly 20 is in transmission connection with the drive assembly 30, and one end of the switching platform 60 far away from the drive assembly 30 is in fixed connection with the support assembly 20, so that the reliability and flexibility of connection between the drive assembly 30 and the support assembly 20 can be improved.

3. A light transmittance detection light path is arranged between the light source component and the detection component, and the light splitting component is arranged on the light transmittance detection light path; the light source assembly comprises a first detection light source and a second detection light source, and the detection assembly (40) comprises a first photoelectric detector and a second photoelectric detector, so that light detection in an ultra-long wave band range can be realized, and the use flexibility of the light transmittance detection device is further improved.

The following describes specific embodiments of the present utility model based on the above technical solutions.

Example 1

Referring to fig. 1 and 2, a light transmittance detecting device according to a first embodiment includes a light source assembly 10, a support assembly 20, a driving assembly 30, and a detecting assembly 40; a light transmittance detection light path is arranged between the light source assembly 10 and the detection assembly 40; the support component 20 can be connected with an object to be detected, and the object to be detected is positioned on the light transmittance detection light path under the condition that the object to be detected is connected with the support component 20; the driving assembly 30 is in transmission connection with the supporting assembly 20, and under the driving of the driving assembly 30, the supporting assembly 20 can rotate relative to the light source assembly 10, and then the object to be tested can be driven to rotate relative to the light source assembly 10, so that the angle of the emergent light beam of the light source assembly 10 entering the object to be tested can be changed.

The light source assembly 10, the support assembly 20 and the detection assembly 40 may be sequentially arranged at intervals, and the support assembly 20 is disposed between the light source assembly 10 and the detection assembly 40.

The object to be measured can be fixed on the support assembly 20, so that the outgoing beam of the light source assembly 10 is emitted to the detection assembly 40 through the object to be measured, and the detection assembly 40 can detect the light transmittance of the object to be measured.

The light transmittance detection device further comprises a switching platform 60, wherein the switching platform 60 is arranged between the driving assembly 30 and the supporting assembly 20; one end of the adapting platform 60 far away from the supporting component 20 is in transmission connection with the driving component 30, and one end of the adapting platform 60 far away from the driving component 30 is fixedly connected with the supporting component 20.

The switching platform 60 is provided with a first connecting position and a second connecting position, and the driving assembly 30 is in transmission connection with the switching platform 60 through the first connecting position; the support assembly 20 is fixedly connected with the adapting platform 60 through a second connection position.

The adapter platform 60 may be a cylindrical adapter platform.

The driving assembly 30 comprises a stepping motor, and a transmission output end of the stepping motor is fixedly connected with the switching platform 60. Thus, the transmission output end can drive the switching platform 60 to rotate, and further drive the supporting component 20 to rotate.

The light transmittance detection device further comprises a control assembly 50, and the control assembly 50 is electrically connected with the stepping motor.

The control assembly 50 can control the rotation of the stepper motor to drive the switching platform 60 to rotate in full circle and further drive the supporting assembly 20 to rotate in full circle, namely the stepper motor can drive the switching platform 60 and the supporting assembly 20 to rotate by 360 degrees, so that the angle of the emergent beam emitted into the object to be detected can be continuously adjusted, and further the detection of the light transmittance under the angle of 0-180 degrees is realized.

The rotation accuracy of the support assembly 20 may be 0.01 °, so that the accuracy of angle adjustment of the outgoing beam incident on the object to be measured can be improved.

The support assembly 20 includes a diaphragm fixedly coupled to the docking station 60 via a second coupling location.

The object to be measured can be adhered to the diaphragm. Therefore, the flexibility of connection can be improved, and the objects to be tested without the size can be flexibly adapted to connection.

The light transmittance detection device further comprises a monochromator, and the monochromator is electrically connected with the control component 50; the monochromator is arranged on the light transmittance detection light path; the control assembly 50 is capable of adjusting the bandwidth of the monochromator to enable the monochromator to perform the target spectroscopy.

The light source assembly 10 includes a first detection light source and a second detection light source, which are electrically connected to the control assembly 50, respectively; the control component 50 can control the first detection light source to emit a first emergent light beam, and the first emergent light beam can sequentially pass through the monochromator and the object to be detected to emit to the detection component 40; the control component 50 can control the second detection light source to emit a second emitted light beam, and the second emitted light beam can sequentially pass through the monochromator and the object to be detected to emit to the detection component 40.

The first detection light source is a deuterium lamp, and a first emergent beam emitted by the deuterium lamp is ultraviolet light with the wave band range of 200-400 nm; the second detection light source is a halogen lamp, and a second emergent beam emitted by the halogen lamp is visible light with the wave band range of 400-800nm and near infrared light with the wave band range of 800-2500 nm; correspondingly, the light source assembly 10 is a direct current stabilized voltage light source formed by combining a deuterium lamp and a halogen lamp, so that the light source assembly 10 can be used in a plug-and-play manner, and the stability of the light source assembly 10 is more than 99.8%.

The detection assembly 40 includes a first photodetector and a second photodetector, each of which is electrically connected to the control assembly 50. The control assembly 50 is capable of controlling the first and second photodetectors to perform light detection in respective wavelength ranges.

The first photoelectric detector is a silicon detector, and the silicon detector can detect light in the wave band range of 200-1100; the second photoelectric detector is a lead sulfide detector, and the lead sulfide detector can detect light in the 800-3000 wave band range.

The light transmittance detection device further comprises a collimator and a surrounding light path channel, so that the influence of stray light on a detection result can be effectively reduced, and the fact that the emergent light beam of the light source assembly 10 passes through the object to be detected in a collimated light mode and is then received by the detection assembly 40 is achieved.

The light transmittance detection device further comprises an optical platform 70, and the light source assembly 10, the driving assembly 30 and the detection assembly 40 are fixedly connected with the optical platform 70 respectively. In this manner, the relative positions of the light source assembly 10, the driving assembly 30, and the detecting assembly 40 can be fixed.

The optical platform 70 is supported by four air-float vibration isolation devices, which can realize air-float vibration isolation of the optical platform 70 to provide a stable environment for the light transmittance detection device.

The light transmittance detection device provided in the first embodiment has the following beneficial effects:

The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.

Claims

1. The light transmittance detection device is characterized by comprising a light source assembly (10), a support assembly (20), a driving assembly (30) and a detection assembly (40);

a light transmittance detection light path is arranged between the light source assembly (10) and the detection assembly (40); the support component (20) can be connected with an object to be detected, and the object to be detected is positioned on the light transmittance detection light path under the condition that the object to be detected is connected with the support component (20);

the driving assembly (30) is in transmission connection with the supporting assembly (20), and under the driving of the driving assembly (30), the supporting assembly (20) can rotate relative to the light source assembly (10), and then can drive an object to be tested to rotate relative to the light source assembly (10), so that the angle of the emergent light beam of the light source assembly (10) entering the object to be tested is changed.

2. The light transmittance detection device according to claim 1, further comprising a control assembly (50), the control assembly (50) being electrically connected to the drive assembly (30).

3. The light transmittance detection device according to claim 1, further comprising a transition platform (60), the transition platform (60) being disposed between the drive assembly (30) and the support assembly (20);

one end of the switching platform (60) far away from the supporting component (20) is in transmission connection with the driving component (30), and one end of the switching platform (60) far away from the driving component (30) is fixedly connected with the supporting component (20).

4. The light transmittance detection device according to claim 2, wherein the light source assembly (10) comprises a first detection light source and a second detection light source, the first detection light source and the second detection light source being electrically connected with the control assembly (50), respectively;

the first detection light source can emit a first emergent light beam, and the first emergent light beam can be emitted to the detection component (40) through the object to be detected;

the second detection light source can emit a second emergent light beam, and the second emergent light beam can be emitted to the detection component (40) through the object to be detected.

5. The light transmittance detection device according to claim 2, wherein the detection assembly (40) comprises a first and a second photo detector, which are electrically connected to the control assembly (50), respectively.

6. The light transmittance detection device according to claim 2, further comprising a light splitting assembly electrically connected to the control assembly (50);

the light splitting assembly is arranged on the light transmittance detection light path, and outgoing light beams of the light source assembly (10) can sequentially pass through the light splitting assembly and the object to be detected to irradiate the detection assembly (40).

7. The light transmittance detection device according to any one of claims 1-6, further comprising an optical platform (70), wherein the light source assembly (10), the drive assembly (30) and the detection assembly (40) are fixedly connected to the optical platform (70), respectively.

8. A light transmittance detection device according to claim 3, wherein the drive assembly (30) comprises a stepper motor, the transmission output of which is fixedly connected to the adapter platform (60).

9. A light transmittance detection device according to claim 3, characterized in that the support assembly (20) comprises a diaphragm fixedly connected to the adapter platform (60).

10. The light transmittance detection device according to any one of claims 1-6, wherein the object to be measured is capable of being adhered to the support member (20).