CN112525487A - Laser polarized light direction detection device - Google Patents
Laser polarized light direction detection device Download PDFInfo
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- CN112525487A CN112525487A CN202011317282.XA CN202011317282A CN112525487A CN 112525487 A CN112525487 A CN 112525487A CN 202011317282 A CN202011317282 A CN 202011317282A CN 112525487 A CN112525487 A CN 112525487A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
Abstract
The application provides a laser polarized light direction detection device. Laser instrument polarization direction detection device includes: the laser fixing device is used for fixing the laser; the visible light conversion module is arranged on a light path of the laser and used for converting the invisible light emitted by the laser into visible light spots and displaying the visible light spots; the CCD detection module is arranged in a manner of being aligned with the optical display area of the visible light conversion module, and the display module is provided with a direction mark corresponding to the laser; the CCD detection module is used for detecting light spots displayed on the light display area, and the display module is used for amplifying and displaying the light spots detected by the CCD detection module; and the direction corresponding to the direction mark deflected by the amplified and displayed light spot is the polarization direction of the laser. The detection device is used for realizing the detection of the polarization direction of the laser with simple operation, accurate result and high efficiency.
Description
Technical Field
The application relates to the technical field of lasers, in particular to a polarization direction detection device of a laser.
Background
The polarization direction of the laser seriously affects the coupling efficiency of the optical device, so the quadriversal of the laser needs to be detected and controlled in production. In the prior art, a four-way test needs to rotate an adapter to perform coupling in four directions, and then the four-way test is performed by comparing coupling data to obtain the four-way size, so as to determine the polarization direction.
However, this method is cumbersome and inefficient, and failure to couple to the maximum will also affect the accuracy of the result.
Disclosure of Invention
An object of the embodiment of the present application is to provide a device for detecting a polarization direction of a laser, which is used for detecting a polarization direction of a laser with simple operation, accurate result and high efficiency.
In a first aspect, an embodiment of the present application provides a laser polarization direction detection apparatus, including: the laser fixing device is used for fixing the laser; the visible light conversion module is arranged on a light path of the laser and used for converting the invisible light emitted by the laser into visible light spots and displaying the visible light spots; the CCD detection module is arranged in a manner of being aligned with the optical display area of the visible light conversion module, and the display module is provided with a direction mark corresponding to the laser; the CCD detection module is used for detecting light spots displayed on the light display area, and the display module is used for amplifying and displaying the light spots detected by the CCD detection module; and the direction corresponding to the direction mark deflected by the amplified and displayed light spot is the polarization direction of the laser.
In this application embodiment, compare with prior art, convert the invisible light that the laser instrument sent into the visible light facula and show through visible light conversion module, then the CCD module enlargies this visible light facula and shows, because be provided with the direction sign on the display module, the light spot that shows based on enlargiing and this direction sign just can determine the polarization direction of laser instrument directly perceivedly. The detection device can determine the polarization direction through the displayed light spot and the direction mark, and when the detection is carried out, only the laser needs to be turned on to emit laser, so that the light spot is formed. Not only the rotation fixation and three-dimensional coupling in 4 directions are avoided, but also the visual display of the test result can be realized; the operation is simple, and the technical requirements on testers are reduced; meanwhile, the accuracy of results is guaranteed, and the testing efficiency is improved.
As a possible implementation manner, the visible light conversion module is an infrared display card.
In the embodiment of the application, the visible light conversion module is an infrared display card which has the functions of visible light conversion and display, so that the structure of the whole detection device is simpler.
As a possible implementation, the visible light conversion module includes: the display card comprises a transmission type frequency doubling sheet and a display card; the transmission type frequency doubling sheet is used for converting invisible light emitted by the laser into visible light, and the display card is used for displaying visible light spots.
In the embodiment of the application, the light conversion is carried out through the transmission type frequency doubling sheet, the display card displays visible light spots, the precision of the visible light conversion module is higher, and the accuracy of the final result is improved.
As a possible implementation, the laser fixture is provided with an adjustment device for adjusting the position of the laser fixture.
In this application embodiment, because the laser instrument has two types that the polarisation direction is obvious and not obvious, through the position of adjusting device adjustment laser instrument, the position of the facula that finally shows also corresponds the change, realizes the regulation to the light-emitting of laser instrument, more does benefit to and detects the polarisation direction.
As a possible implementation manner, the apparatus further includes: and the processor is connected with the display module and used for acquiring a display image of the display module and determining the polarization direction of the laser based on the display image.
In the embodiment of the application, except that a tester can determine the polarization direction based on the displayed visible light spots and the direction identification, the detection device can also determine the polarization direction by processing the image through the processor, so that the diversity of the detection result is improved.
In a second aspect, an embodiment of the present application further provides a device for detecting a polarization direction of a laser, including: the laser fixing device is used for fixing the laser; the infrared CCD module comprises an infrared CCD detection module and a display module; the infrared CCD detection module is arranged on the light path of the laser; the display module is provided with a direction mark corresponding to the laser; the infrared CCD detection module is used for detecting invisible light emitted by the laser and converting the detected invisible light into visible light spots, and the display module is used for amplifying and displaying the visible light spots; and the direction corresponding to the direction mark deflected by the visible light facula displayed in an amplifying way is the polarization direction of the laser.
In this application embodiment, compare with prior art, infrared CCD module has the function of invisible light detection, conversion and demonstration, and the invisible light spot that sends through infrared CCD module detection laser instrument is converted into the visible light facula and is enlargied the demonstration, because be provided with the direction sign on the display module, just can confirm the polarisation direction of laser instrument directly perceivedly based on the facula that enlargies the demonstration and this direction sign. The detection device can determine the polarization direction through the displayed light spot and the direction mark, and when the detection is carried out, only the laser needs to be turned on to emit laser, so that the light spot is formed. Not only the rotation fixation and three-dimensional coupling in 4 directions are avoided, but also the visual display of the test result can be realized; the operation is simple, and the technical requirements on testers are reduced; meanwhile, the accuracy of results is guaranteed, and the testing efficiency is improved.
As a possible implementation manner, the apparatus further includes a processor, the processor is connected to the display module, and the processor is configured to acquire a display image of the display module and determine the polarization direction of the laser based on the display image.
In the embodiment of the application, except that a tester can determine the polarization direction based on the displayed visible light spots and the direction identification, the detection device can also determine the polarization direction by processing the image through the processor, so that the diversity of the detection result is improved.
In a third aspect, an embodiment of the present application further provides a device for detecting a polarization direction of a laser, including: the laser fixing device is used for fixing the laser; the visible light conversion module is arranged on a light path of the laser, and a direction mark corresponding to the laser is arranged on the visible light conversion module; the visible light conversion module is used for converting the invisible light emitted by the laser into visible light spots and displaying the visible light spots; and the direction corresponding to the direction mark deflected by the displayed visible light facula is the polarization direction of the laser.
In this application embodiment, compare with prior art, convert the invisible light that the laser instrument sent into the visible light facula and show through visible light conversion module, because be provided with the direction sign on the visible light conversion module, just can confirm the polarisation direction of laser instrument directly perceivedly based on the facula that shows and this direction sign. The detection device can determine the polarization direction through the displayed light spot and the direction mark, and when the detection is carried out, only the laser needs to be turned on to emit laser, so that the light spot is formed. Not only the rotation fixation and three-dimensional coupling in 4 directions are avoided, but also the visual display of the test result can be realized; the operation is simple, and the technical requirements on testers are reduced; meanwhile, the accuracy of results is guaranteed, and the testing efficiency is improved.
As a possible implementation manner, the visible light conversion module is an infrared display card.
In the embodiment of the application, the visible light conversion module is an infrared display card which has the functions of visible light conversion and display, so that the structure of the whole detection device is simpler.
As a possible implementation manner, the visible light conversion module includes a transmissive frequency doubling sheet and a display card; the transmission type frequency doubling sheet is used for converting invisible light emitted by the laser into visible light, and the display card is used for displaying visible light spots.
In the embodiment of the application, the light conversion is carried out through the transmission type frequency doubling sheet, the display card displays visible light spots, the precision of the visible light conversion module is higher, and the accuracy of the final result is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a first implementation manner of a laser polarization direction detection apparatus provided in an embodiment of the present application;
FIG. 2 is an exemplary diagram of a direction indicator provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a second implementation manner of a laser polarization direction detection apparatus provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of a third implementation manner of a laser polarization direction detection apparatus according to an embodiment of the present application.
Icon: 10-a detection device; 11-laser fixing means; 110-a body; 112-a fixed part; 12-a visible light conversion module; 13-a laser; 130-a power supply; 14-a CCD module; 140-a CCD detection module; 142-a first display module; 15-infrared CCD module; 150-infrared CCD detection module; 152-a second display module.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
The laser polarization direction detection device provided by the embodiment of the application can be applied to application scenes in which the polarization direction of a laser needs to be detected. Such as: during the use of the laser, a user uses the detection device to detect the polarization direction of the laser. For another example: during the production or manufacturing process of the laser, a tester utilizes the detection device to detect the polarization direction of the laser.
The polarization direction is in the packaging process of the laser, and the emergent light of the laser cannot be transmitted along the axis direction of the laser necessarily because the chip and the tube cap lens cannot completely ensure the coaxiality, and has a certain angle with the axis, and the direction is arbitrary. Four typical directions are usually defined according to the pins of the laser, and the four directions are polarization directions for describing the deflection of the light emitted by the laser.
In the technical solution provided in the embodiment of the present application, based on the same inventive concept, the laser polarization direction detection apparatus (hereinafter, referred to as a detection apparatus for short in the following embodiments) may have three different embodiments, and the detection apparatuses in the three embodiments are described below.
Referring to fig. 1, which is a schematic structural diagram of a first implementation manner of a detection apparatus 10 according to an embodiment of the present disclosure, in fig. 1, the detection apparatus 10 includes a laser fixing apparatus 11 and a visible light conversion module 12, wherein a laser 13 is fixed on the laser fixing apparatus 11, and the visible light conversion module 12 is disposed on an optical path (shown by a dotted line in the figure) of the laser 13. The visible light conversion module 12 is provided with direction marks corresponding to the lasers 13, and may be understood as direction marks corresponding to four directions of the lasers 13. The visible light conversion module 12 is configured to convert the invisible light emitted by the laser 13 into a visible light spot and display the visible light spot. Because the direction mark is arranged on the visible light conversion module 12, the direction corresponding to the direction mark to which the displayed visible light spot deflects is the polarization direction of the laser 13, and for a tester or a user, the polarization direction of the laser 13 can be determined by observing the visible light spot and the direction mark displayed on the visible light conversion module.
Through this detection device 10, can confirm the polarisation direction through the facula and the direction sign that show, when detecting, only need open the laser instrument, make its transmission laser, form the facula can. Not only the rotation fixation and three-dimensional coupling in 4 directions are avoided, but also the visual display of the test result can be realized; the operation is simple, and the technical requirements on testers are reduced; meanwhile, the accuracy of results is guaranteed, and the testing efficiency is improved.
A detailed embodiment of the detection device 10 shown in fig. 1 will be described next.
For the laser fixture 11, it may include: a body 110 and a fixing portion 112. The body 110 is used for supporting the fixing portion 112, and the fixing portion 112 is used for fixing the laser 13. The body 110 may be a cylinder or other practical shape, and the size and volume thereof may be designed in combination with the size of the laser 13, if the laser 13 is larger, the required supporting force is also larger, and the size and volume of the body 110 are correspondingly larger; if the laser 13 is small, less support force is required and the size and volume of the body 110 is correspondingly small. The body 110 of the laser fixture 11 may also be considered as the body of the inspection device 10. The material of the body 110 may be metal: such as metal simple substance or metal alloy, etc.
The fixing portion 112 may be fixed to the main body or may be movable. On the fixing portion 112, corresponding fixing members are provided, such as: a clip-type fixing member, which can clip and fix the laser 13 by clipping. For another example: conventional fastener forms, as an alternative embodiment: a fixing groove (which may be completely hollow, or solid at one end and hollow at the other end) of the laser is formed on the fixing portion 112, and fixing members are disposed around or at the edge of the fixing groove, for example: the laser 13 is fixed in the fixing groove by a fixing member through a screw hole or a clamping member, and the laser 13 can be fixed on the fixing portion 112. It should be noted that, when the laser 13 is fixed, the laser emitting end thereof may face the direction of the visible light conversion module 12. Such as: in the structure shown in fig. 1, one end from which laser light is emitted is directed to the position of the visible light conversion module below. Alternatively, the fixing portion 112 or the fixing groove is movable, for example, the fixing portion is rotatable with respect to the body 110 (i.e., the fixing portion 112 is movably connected with the body 110) or with respect to the fixing portion 112, so that the light emitted by the laser 13 can be directed to the visible light conversion module 12 by rotating the fixing portion 112 or the fixing groove regardless of the direction of the laser-emitting end of the laser 13.
Further, as an alternative embodiment, the laser fixing device 11 is further provided with an adjusting device for adjusting the position of the laser fixing device 11. Based on the above-described embodiment of the laser fixing device 11, the adjusting device is used to adjust the position of the fixing portion 112. As an alternative embodiment, the adjusting device is a sliding adjusting device, which connects the fixing portion 112 with the body 110 on the one hand, and on the other hand, can adjust the position of the fixing portion 112 relative to the body 110, such as: in fig. 1, the fixing part 112 may slide up and down along a vertical direction of the body 110. The sliding adjustment device is well known in the art, and generally includes a sliding rail, a driving device, and other components, and the specific embodiment thereof is implemented by a general embodiment for those skilled in the art, and will not be described in detail in the embodiments of the present application. In addition, the sliding adjustment device may be adjusted electrically or manually, and is not limited in the embodiment of the present application.
For the function of the adjusting device, it can be understood that the laser 13 has two types of the laser with obvious polarization direction and the laser with unobvious polarization, and the laser with long focus and short focus are distinguished, and for the laser 13 with long focus or obvious polarization, the displayed light spot is also obvious in eccentricity, so that the polarization direction is easy to judge; however, for the laser 13 with short focus or with insignificant polarization, the polarization of the displayed light spot is relatively less eccentric, and at this time, the position of the laser 13 (i.e., the position of the adjusting fixing portion 112) can be adjusted by the adjusting device, and when the position of the laser 13 changes, the distance between the laser 13 and the visible light conversion module 12 also changes, so that the eccentricity and the display effect adjustment of the finally displayed light spot can be performed, so as to better judge the polarization direction of the laser 13.
In this application embodiment, because laser 13 has two types that the polarisation direction is obvious and not obvious, through adjusting device adjustment laser 13's position, the position of the facula that finally shows also changes correspondingly, realizes the regulation to laser 13's light-emitting, more does benefit to and detects the polarisation direction.
As an alternative embodiment, the visible light conversion module 12 is an infrared display card. The infrared display card is a laser display card, has functions of visible light conversion and display, and can directly convert laser emitted by the laser 13 into visible light spots for display. The infrared display card is also called a frequency doubling sheet, a light modulation sheet, an infrared laser up-conversion sheet, an infrared laser detection plate, an optical conversion sheet, an infrared laser detection plate, an infrared up-conversion sheet, an infrared laser color development card and the like. In this embodiment, the direction indicator is disposed in the display area of the infrared display card.
As another optional implementation, the visible light conversion module 12 includes a transmissive frequency doubling chip and a display card, where the transmissive frequency doubling chip is used to convert the invisible light emitted by the laser 13 into visible light, and the display card is used to display visible light spots, so that the accuracy of the visible light conversion module is higher, and the accuracy of the final result is improved. In this embodiment, the display card only has a normal light spot display capability, and the direction indicator is arranged in the display area of the display card.
No matter the infrared display card or the transmission-type frequency doubling chip and the display card are adopted, referring to fig. 2, an exemplary diagram of the direction identifier provided in the embodiment of the present application is shown as the setting mode of the direction identifier on the display card, and in fig. 2, four directions of the laser 13 are identified on the display area of the display card or the infrared display card, including: direction 1, direction 2, direction 3, and direction 4. when the displayed spot is deflected to a specific direction, the polarization direction of the laser 13 is the direction of the laser 13 corresponding to the specific direction. Such as: when the light spot in fig. 2 is deflected in the direction 1, the direction of the laser 13 corresponding to the direction 1 is the polarization direction of the laser 13. For the correspondence between the direction of the laser 13 and the direction of the marker, if the display area is directly opposite to the optical path of the laser 13, the direction of the marker coincides with the four directions of the laser 13; if the display area is not directly opposite to the optical path of the laser 13, the direction of the mark and the four directions of the laser 13 may be set corresponding to the deviation of the display area with respect to the optical path of the laser 13.
In addition, for the laser 13, to emit laser, an external power supply 130 is also required, and parameters such as voltage, power and the like of the power supply 130 depend on adaptive parameters of the laser 13, which are not limited in the embodiment of the present application.
In the first embodiment of the detection device 10 shown in fig. 1, the display of the light spot can be realized only by using the laser fixing device 11 and the visible light conversion module 12, and the detection device 10 is suitable for application scenes with poor external equipment conditions, has a simple structure, and can basically realize the detection of the polarization direction.
In the embodiment of the present application, on the basis of the detection apparatus 10 shown in fig. 1, a CCD (Charge Coupled Device) module may be further added, and the module may convert light into charges for storage and transfer, and display on a display.
Referring to fig. 3, which is a schematic structural diagram of a second implementation manner of the detection device 10 according to an embodiment of the present disclosure, in fig. 3, the detection device 10 includes a laser fixing device 11, a visible light conversion module 12, and a CCD module 14. The laser fixing device 11 is used for fixing the laser 13; the visible light conversion module 12 is configured to convert the invisible light emitted by the laser 13 into a visible light spot and display the visible light spot. The CCD module 14 includes a CCD detection module 140 and a first display module 142, the CCD detection module 140 is arranged to align with a light display area (shown by a dotted line in the figure) of the visible light conversion module 12, and the first display module 142 is provided with a direction mark corresponding to the laser 13; the CCD detection module 140 is configured to detect a light spot displayed on the light display area, and the first display module 142 is configured to enlarge and display the light spot detected by the CCD detection module 140; the direction corresponding to the direction mark to which the enlarged and displayed light spot is deflected is the polarization direction of the laser 13.
In the second embodiment, different from the first embodiment, the CCD module 14 realizes the enlarged display of the visible light spot, so that the finally displayed visible light spot is more obvious, and the judgment of the polarization direction is more convenient.
The laser fixing device 11 is the same as the first embodiment, for example: adjustment devices and the like are also provided, and for the sake of brevity of the description, a description thereof will not be repeated.
Further, the visible light conversion module 12 is also the same as the embodiment of the first embodiment, such as: the infrared display card or the transmission type frequency doubling sheet and the display card can be adopted, and the description is not repeated here for the simplicity of the specification.
The CCD module 14 is usually self-contained for both the CCD detection module 140 and the first display module 142, i.e. the CCD module 14 can adopt a mature CCD product, and therefore, the embodiment of the CCD module 14 will not be described in detail herein.
In addition, the direction indicators on the first display module 142 are the same as those on the display card or the infrared display card in the first embodiment, and for the sake of brevity of the description, the description will not be repeated here.
In addition, in this embodiment, the laser 13 also needs to be externally connected with the power supply 130, and the embodiment of the power supply 130 is the same as that in the first embodiment, and for the sake of brevity of description, the description is not repeated here.
In this embodiment, since the first display module 142 of the CCD module 14 also has an imaging function, the function of the detection apparatus 10 can also be expanded based on the imaging function. As an alternative embodiment, the detection apparatus 10 further includes a processor, which is connected to the display module and is configured to acquire a display image of the first display module 142 and determine the polarization direction of the laser 13 based on the display image.
The processor may be an integrated circuit chip having signal processing capabilities. The Processor may be a general-purpose Processor including a CPU (Central Processing Unit), an NP (Network Processor), and the like; but may also be a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components. Which may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In such an embodiment, the first display module 142 sends the display image to a processor, which, upon receiving the display image, may determine the polarization direction of the laser 13 in conjunction with image processing techniques. As an alternative embodiment, the processor may determine the polarization direction of the laser 13 based on the display image by means of a preceding machine learning. The method comprises the following steps that before machine learning is carried out, a plurality of training images are selected in advance, wherein the training images all contain light spots and are marked with polarization directions judged by the light spots in each image; the plurality of training images are input to the processor, the processor performs machine learning based on the plurality of training images according to a preset machine learning algorithm, and finally the processor can determine the polarization direction corresponding to the input display image containing the light spot as the polarization direction of the laser 13. Besides the machine learning algorithm, the method can also be realized by adopting a neural network model and the like. These techniques are well known and may be implemented by image processing techniques, machine learning techniques, or neural network modeling techniques, which are well known to those skilled in the art, and will not be described in detail herein.
For the processor, the determined polarization direction can be embodied by a specific polarization angle, which is more accurate than the polarization direction directly observed by the tester.
In practical application, the processor may be provided with a data output interface, and a tester or a user connects an electronic device (a mobile phone, a computer, etc.) to the processor through the interface, so that the electronic device can read a result output by the processor. After obtaining the result determined by the processor, the tester or the user can perform comprehensive comparison by combining the result visually seen by the tester or the user, and finally determine the polarization direction of the laser 13.
In the embodiment of the application, in addition to that the tester can determine the polarization direction based on the displayed visible light spot and the direction identifier, the detection device 10 can also determine the polarization direction by performing image processing through the processor, thereby improving the diversity of the detection results.
Referring to fig. 4, a third implementation of the detecting device 10 according to the embodiment of the present application is shown, in fig. 4, the detecting device 10 includes: a laser fixture 11 and an infrared CCD module 15. The laser fixing device 11 is used for fixing the laser 13; the infrared CCD module 15 includes: an infrared CCD detection module 150 and a second display module 152. The infrared CCD detection module 150 is arranged on the light path of the laser 13; the second display module 152 is provided with a direction identifier corresponding to the laser 13; the infrared CCD detecting module 150 is configured to detect the invisible light emitted by the laser 13, and convert the detected invisible light into visible light spots, and the second display module 152 is configured to amplify and display the visible light spots; the direction corresponding to the direction mark to which the enlarged and displayed visible light spot is deflected is the polarization direction of the laser 13.
In this embodiment, the infrared CCD module 15 has functions of invisible light detection, conversion, and display, and therefore, in addition to the second embodiment, the visible light conversion module 12 does not need to be used in the third embodiment, and the functions of the visible light conversion module 12 can be realized by the infrared CCD module 15.
Among these, the laser fixing device 11 is the same as the first and second embodiments, such as: adjustment devices and the like are also provided, and for the sake of brevity of the description, a description thereof will not be repeated.
For the infrared CCD detection module 150 and the second display module 152, both of them are usually self-contained in the infrared CCD module 15, that is, the infrared CCD module 15 may adopt a mature infrared CCD product, and therefore, the embodiment of the infrared CCD module 15 will not be specifically described herein.
In addition, the direction indicators on the second display module 152 are the same as those on the display card or the infrared display card in the first embodiment and those on the first display module 142 in the second embodiment, and for the sake of brevity of the description, the description will not be repeated here.
In addition, in this embodiment, the laser 13 also needs to be externally connected with the power supply 130, and the embodiment of the power supply 130 is the same as that in the first and second embodiments, and for the sake of brevity of description, the description is not repeated here.
In this embodiment, since the second display module 152 of the infrared CCD module 15 also has an imaging function, the third embodiment of the detection apparatus 10 may also include a processor, and the embodiment of the processor, the image processing principle of the processor, and the like are the same as those in the second embodiment of the detection apparatus 10, and a description thereof will not be repeated here for the sake of brevity of the description.
By the foregoing description of the three embodiments of the detection device 10, in all of the three embodiments, the detection device 10 performs spot display and direction marking based on the laser light emitted by the laser 13 to realize intuitive judgment of the polarization direction. However, the modules used in the three embodiments are different, and in actual application, which embodiment is used may be selected in combination with a specific application scenario. Such as: in the case where the conditions of the apparatus permit, the third embodiment can be adopted, and more accurate detection results can be obtained on the basis of the simple structure of the detection device 10. In the case where the device conditions are relatively poor, the first embodiment can be adopted, and the detection of the polarization direction can be realized on the basis of the simple structure of the detection device 10. In the case of general equipment conditions, the second embodiment may be adopted, and the structure of the detecting device 10 is more than that of the other two constituent modules, but an accurate detecting structure can be obtained.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A laser polarization direction detection device, comprising:
the laser fixing device is used for fixing the laser;
the visible light conversion module is arranged on a light path of the laser and used for converting the invisible light emitted by the laser into visible light spots and displaying the visible light spots;
the CCD detection module is arranged in a manner of being aligned with the optical display area of the visible light conversion module, and the display module is provided with a direction mark corresponding to the laser;
the CCD detection module is used for detecting light spots displayed on the light display area, and the display module is used for amplifying and displaying the light spots detected by the CCD detection module; and the direction corresponding to the direction mark deflected by the amplified and displayed light spot is the polarization direction of the laser.
2. The apparatus of claim 1, wherein the visible light conversion module is an infrared display card.
3. The apparatus of claim 1, wherein the visible light conversion module comprises: the display card comprises a transmission type frequency doubling sheet and a display card; the transmission type frequency doubling sheet is used for converting invisible light emitted by the laser into visible light, and the display card is used for displaying visible light spots.
4. A device according to any of claims 1-3, characterized in that the laser fixture is provided with adjustment means for adjusting the position of the laser fixture.
5. The apparatus of claim 1, further comprising: and the processor is connected with the display module and used for acquiring a display image of the display module and determining the polarization direction of the laser based on the display image.
6. A laser polarization direction detection device, comprising:
the laser fixing device is used for fixing the laser;
the infrared CCD module comprises an infrared CCD detection module and a display module; the infrared CCD detection module is arranged on the light path of the laser; the display module is provided with a direction mark corresponding to the laser;
the infrared CCD detection module is used for detecting invisible light emitted by the laser and converting the detected invisible light into visible light spots, and the display module is used for amplifying and displaying the visible light spots; and the direction corresponding to the direction mark deflected by the visible light facula displayed in an amplifying way is the polarization direction of the laser.
7. The apparatus of claim 6, further comprising a processor coupled to the display module, the processor configured to obtain a display image of the display module and determine a polarization direction of the laser based on the display image; wherein the display image comprises the direction identifier.
8. A laser polarization direction detection device, comprising:
the laser fixing device is used for fixing the laser;
the visible light conversion module is arranged on a light path of the laser, and a direction mark corresponding to the laser is arranged on the visible light conversion module; the visible light conversion module is used for converting the invisible light emitted by the laser into visible light spots and displaying the visible light spots; and the direction corresponding to the direction mark deflected by the displayed visible light facula is the polarization direction of the laser.
9. The apparatus of claim 8, wherein the visible light conversion module is an infrared display card.
10. The apparatus of claim 9, wherein the visible light conversion module comprises a transmissive frequency doubling sheet and a display card; the transmission type frequency doubling sheet is used for converting invisible light emitted by the laser into visible light, and the display card is used for displaying visible light spots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317282.XA CN112525487B (en) | 2020-11-20 | 2020-11-20 | Laser polarization direction detection device |
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| CN202011317282.XA CN112525487B (en) | 2020-11-20 | 2020-11-20 | Laser polarization direction detection device |
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| CN112525487A true CN112525487A (en) | 2021-03-19 |
| CN112525487B CN112525487B (en) | 2023-10-17 |
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