Deviation correction sensor

Abstract

The utility model discloses a deviation rectifying sensor which comprises a transmitting assembly and a receiving assembly. The emission assembly comprises an emission light source, an amplification unit, a first collimation unit and an emission circuit board, and the emission light source is electrically connected with the emission circuit board; the receiving assembly comprises a second collimation unit, an imaging unit and a receiving circuit board, and the imaging unit is electrically connected with the receiving circuit board; wherein an emission light source of the emission assembly emits a light beam, and the light beam sequentially enters the amplification unit and the first collimation unit to be amplified and collimated, enters the receiving assembly, then enters the imaging unit after being collimated by the second collimation unit, and is imaged and output by the imaging unit. The first collimation unit and the second collimation unit are arranged to collimate the light beams, the space utilization effect of the correction sensor is optimized, the difficulty and the cost of production and manufacturing are reduced, the amplification unit is arranged to amplify the light beams, the emergent effect and the imaging effect of the light beams are improved, and the detection accuracy is improved. Therefore, the measurement precision of the deviation correction sensor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of deviation correction sensors, in particular to a deviation correction sensor. Background Art

[0002] A correction sensor is a sensor used to detect and correct the deviation of an object. It emits light signals and receives corresponding reflected signals, thereby using the final imaging of the light signal to detect the edge position or center position of the object. When the position of the object is detected to be offset, the detected position positioning information is fed back to the controller, which then determines the direction and degree of the object's offset, and then drives the corrector to rotate through the propeller, thereby correcting the object's offset.

[0003] During the operation of the deflection sensor, the light signal emitted by the light source is often not completely parallel or evenly distributed, but has a certain divergence angle, which may cause the deflection sensor to deviate when receiving the light signal. Therefore, it is necessary to align the light signal in the deflection sensor with the fast and slow axes. The fast and slow axis alignment is the process of calibrating and adjusting the light signal. The collimated light signal has better directionality and monochromaticity, which can ensure the consistency of the light signal response, thereby improving the detection stability of the deflection sensor.

[0004] At present, common deflection correction sensors generally use two cylindrical mirrors to align the fast and slow axes respectively, but this method has some defects. For example, the cylindrical mirror is large in size and needs to occupy a larger internal space of the deflection correction sensor, which increases the difficulty of designing and assembling the deflection correction sensor and also increases the manufacturing cost. For another example, although the cylindrical mirror can adjust the light spot shape corresponding to the light signal within a certain range, it cannot effectively improve the uniformity of the light spot, which will cause the final imaging effect of the deflection correction sensor to be unable to be effectively guaranteed, thereby affecting the detection accuracy of the deflection correction sensor. Therefore, how to design a deflection correction sensor with better space utilization and higher detection accuracy is a problem to be solved by those skilled in the art. Utility Model Content

[0005] The embodiment of the utility model provides a deviation correction sensor, aiming to improve the space utilization effect and detection accuracy of the deviation correction sensor.

[0006] The utility model provides a deviation correction sensor, comprising a transmitting component and a receiving component;

[0007] The transmitting assembly comprises a transmitting light source, an amplifying unit, a first collimating unit and a transmitting circuit board, and the transmitting light source is electrically connected to the transmitting circuit board;

[0008] The receiving assembly includes a second collimating unit, an imaging unit and a receiving circuit board, and the imaging unit is electrically connected to the receiving circuit board;

[0009] Among them, the emitting light source of the emitting component emits a light beam, which is incident on the amplifying unit and the first collimating unit in turn for amplification and collimation, and is incident on the receiving component, and then collimated by the second collimating unit and incident on the imaging unit, and is imaged and output by the imaging unit.

[0010] Preferably, the first collimating unit is a first biconical lens, and the second collimating unit is a second biconical lens;

[0011] The incident surface of the first biconical lens is a plane, and the exit surface is a convex surface; the incident surface of the second biconical lens is a convex surface, and the exit surface is a plane.

[0012] Preferably, the magnifying unit is a biconcave lens or a plano-concave lens for magnifying the central concentrated part of the light beam, or a convex lens for defocusing and magnifying the light beam.

[0013] Preferably, an emission aperture for filtering stray portions at the edge of the light beam is provided between the emission light source and the amplification unit.

[0014] Preferably, a reflection unit is provided between the amplifying unit and the first collimating unit, and the reflection unit is used for reflecting the light beam amplified and output by the amplifying unit to the first collimating unit.

[0015] Preferably, the launch assembly further comprises a launch fixing unit, wherein the launch fixing unit is provided with a first fixing surface, a second fixing surface and a third fixing surface distributed in a triangular shape;

[0016] The first fixing surface is used for fixing and installing the amplifying unit, the second fixing surface is used for fixing and installing the reflecting unit, and the third fixing surface is used for fixing and installing the first collimating unit.

[0017] Preferably, the receiving assembly further comprises a receiving fixing unit, and the receiving fixing unit is provided with a fourth fixing surface and a fifth fixing surface facing away from the receiving fixing unit;

[0018] The fourth fixing surface is used for fixing and mounting the second collimating unit, and the fifth fixing surface is used for fixing and mounting the imaging unit.

[0019] Preferably, the transmitting assembly is installed in a transmitting shell, and the transmitting shell has a transmitting window; the receiving assembly is installed in a receiving shell, and the receiving shell has a receiving window;

[0020] After being collimated by the first collimating unit, the light beam is incident on the transmitting window and the receiving window in sequence, and then is incident on the second collimating unit through the receiving window.

[0021] Preferably, the reflection unit is a 45° total reflection mirror.

[0022] Preferably, the imaging unit is a CMOS photosensitive chip.

[0023] The utility model embodiment discloses a correction sensor, including a transmitting component and a receiving component; the transmitting component includes a transmitting light source, an amplifying unit, a first collimating unit and a transmitting circuit board, and the transmitting light source is electrically connected to the transmitting circuit board; the receiving component includes a second collimating unit, an imaging unit and a receiving circuit board, and the imaging unit is electrically connected to the receiving circuit board; wherein, the transmitting light source of the transmitting component emits a light beam, and the light beam is incident on the amplifying unit and the first collimating unit in turn for amplification and collimation, and is incident on the receiving component, and then is incident on the imaging unit after being collimated by the second collimating unit, and is imaged and output by the imaging unit. The utility model embodiment can optimize the space utilization effect of the correction sensor by respectively arranging the first collimating unit and the second collimating unit in the transmitting component and the receiving component to collimate the light beam, thereby reducing the difficulty and cost of manufacturing, and also by arranging the amplifying unit in the transmitting component to amplify the light beam, thereby improving the uniformity of the light beam, and thereby improving the emission effect and imaging effect of the light beam, thereby improving the measurement accuracy of the correction sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1a A schematic diagram of the structure of a transmitting component in a deviation correction sensor provided in an embodiment of the utility model;

[0026] Figure 1b A schematic diagram of the structure of a receiving component in a deviation correction sensor provided in an embodiment of the utility model;

[0027] Figure 2 An internal schematic diagram of a deviation correction sensor provided by an embodiment of the utility model;

[0028] Figure 3 A schematic diagram of light beam propagation of a deviation correction sensor provided in an embodiment of the utility model;

[0029] Figure 4 An exploded view of a deviation correction sensor provided by an embodiment of the utility model;

[0030] Figure 5 It is a schematic diagram of imaging spot in the prior art;

[0031] Figure 6 A schematic diagram of an imaging spot of a correction sensor provided in an embodiment of the utility model;

[0032] Figure 7 A schematic diagram of the structure of a first biconical lens in a deviation correction sensor provided by an embodiment of the utility model;

[0033] Figure 8 A schematic diagram of the structure of an emission fixing unit in a deviation correction sensor provided by an embodiment of the utility model;

[0034] Fig. 9 A schematic structural diagram of a receiving and fixing unit in a deviation correction sensor provided in an embodiment of the utility model.

[0035] Markings in the figure: 10. Transmitting component; 11. Transmitting light source; 12. Amplifying unit; 13. First collimating unit; 14. Transmitting circuit board; 15. Transmitting aperture; 16. Reflecting unit; 17. Transmitting fixing unit; 18. Light source fixing piece; 19. Light source circuit board; 20. Receiving component; 21. Second collimating unit; 22. Imaging unit; 23. Receiving circuit board; 24. Receiving fixing unit; 30. Transmitting shell; 31. Transmitting window; 32. Transmitting window plate; 33. Transmitting circuit dustproof plate; 40. Receiving shell; 41. Receiving window; 42. Receiving window plate; 43. Receiving circuit dustproof plate. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0038] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0039] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0040] Please refer to Figure 1 below. Figure 4 , a deviation correction sensor provided by an embodiment of the utility model specifically includes a transmitting component 10 and a receiving component 20;

[0041] The transmitting assembly includes a transmitting light source 11, an amplifying unit 12, a first collimating unit 13 and a transmitting circuit board 14, and the transmitting light source 11 is electrically connected to the transmitting circuit board 14;

[0042] The receiving assembly 20 includes a second collimating unit 21, an imaging unit 22 and a receiving circuit board 23, and the imaging unit 22 is electrically connected to the receiving circuit board 23;

[0043] Among them, the emitting light source 11 of the emitting component 10 emits a light beam, which is incident on the amplifying unit 12 and the first collimating unit 13 in turn for amplification and collimation, and is incident on the receiving component 20, and then collimated by the second collimating unit 21 and incident on the imaging unit 22, and is imaged and output by the imaging unit 22.

[0044] In this embodiment, a light beam is emitted by the emission light source 11 in the emission component 10, and then the light beam is amplified by the amplifying unit 12 to improve the uniformity of the light beam, and then the amplified light beam is collimated by the first collimating unit 13, and the amplified light beam is incident on the receiving component 20, so that the light beam is collimated again by the second collimating unit 21 in the receiving component 20, so as to ensure the consistency of the light beam emission and reception, and finally the light beam is incident on the imaging unit 22, and the imaging unit 22 outputs the image. In this embodiment, by respectively arranging the first collimating unit 13 and the second collimating unit 21 in the emission component 10 and the receiving component 20 to collimate the light beam, it is possible to optimize the space utilization effect of the correction sensor, thereby reducing the difficulty and cost of manufacturing, and also by arranging the amplifying unit 12 in the emission component 10 to amplify the light beam, the uniformity of the light beam is improved, and thereby the emission effect and imaging effect of the light beam are improved, thereby improving the measurement accuracy of the correction sensor.

[0045] Figure 5 The figure shows a schematic diagram of an imaging spot of an existing correction sensor. Figure 5 It can be seen that the final imaging spot of the existing correction sensor has low clarity and poor uniformity, which seriously affects the detection accuracy of the correction sensor for the correction object and increases the difficulty of the next step of deviation correction. Figure 6 FIG. 1 is a schematic diagram of an imaging spot of the correction sensor provided in this embodiment. Figure 6It can be seen that the correction sensor provided in this embodiment can effectively improve the uniformity of the imaging light spot. On this basis, the detection accuracy of the correction sensor for the object to be corrected can be fully improved, so as to better perform the next step of deviation correction.

[0046] In a specific embodiment, the imaging unit 22 is a CMOS photosensitive chip. Specifically, during the operation of the correction sensor, when the object to be corrected blocks the optical path of the light beam, the final imaging will produce a clear edge on the CMOS photosensitive chip, so that the edge of the object can be accurately measured using the pixel parameters corresponding to the CMOS photosensitive chip, so as to perform the next step of offset correction. The CMOS photosensitive chip has the advantages of low power consumption, low cost, high precision and high integration, and is a good choice for the imaging unit 22. Of course, in other embodiments, other components can also be selected as the imaging unit 22 according to different needs.

[0047] Combination Figure 7 As shown, in one embodiment, the first collimating unit 13 is a first biconical lens, and the second collimating unit 21 is a second biconical lens;

[0048] The incident surface of the first biconical lens is a plane, and the exit surface is a convex surface; the incident surface of the second biconical lens is a convex surface, and the exit surface is a plane.

[0049] In this embodiment, the first collimating unit 13 and the second collimating unit 21 are two biconical lenses with the same structure. At the same time, the biconical lenses corresponding to the first collimating unit 13 and the second collimating unit 21 each include an incident surface and an exit surface, wherein the incident surface of the first biconical lens is a plane and the exit surface is a convex surface, while the second biconical lens is opposite to the first biconical lens, and its incident surface is a convex surface and the exit surface is a plane. In a specific application scenario, the convex surface of the first biconical lens and the convex surface of the second biconical lens are arranged oppositely, and during the operation of the correction sensor, the light beam is incident on the incident surface of the first biconical lens, the incident surface of the first biconical lens, the incident surface of the second biconical lens, and the exit surface of the second biconical lens in sequence. The biconical lens in this embodiment can utilize the same lens to collimate the fast and slow axes of the laser respectively. This can reduce the volume of the collimation unit by reducing the number of components used to collimate the light beam, thereby improving the space utilization of the correction sensor, thereby reducing the difficulty of designing and assembling the correction sensor, and reducing the difficulty and cost of manufacturing the correction sensor. It can also facilitate the assembly tolerance of the correction sensor and help improve the measurement accuracy of the correction sensor.

[0050] It should be noted that if Figure 3As shown, the convex surface of the first biconical lens and the convex surface of the second biconical lens in this embodiment are arranged opposite to each other. Of course, in other embodiments, a structure or component capable of changing the optical propagation path of the light beam may be arranged between the first biconical lens and the second biconical lens, such as arranging a plurality of reflectors to reflect the light beam. In this case, the first biconical lens and the second biconical lens may not need to be arranged opposite to each other, that is, the convex surface of the first biconical lens may not need to be facing the convex surface of the second biconical lens.

[0051] In a specific embodiment, the distance between the first biconical lens and the second biconical lens (ie, the measuring range of the deviation correction sensor) can be adjusted according to different working requirements. For example, the measuring range of the deviation correction sensor can be set to 0 mm to 300 mm.

[0052] In one embodiment, the magnifying unit 12 is a biconcave lens or a plano-concave lens for magnifying the central concentrated portion of the light beam, or a convex lens for defocusing and magnifying the light beam.

[0053] In this embodiment, the purpose of the amplification unit 12 to amplify the light beam is to improve the uniformity of the light beam. Specifically, a biconcave lens or a plano-concave lens can be used to diverge the part of the light originally concentrated in the center of the light beam to a wider area, thereby expanding the spot area corresponding to the light beam, thereby improving the uniformity of the light beam; or, a convex lens can be used to defocus and amplify the light beam. When the light beam passes through the convex lens, it will converge near the focus of the convex lens under the focusing action of the convex lens, and when the imaging unit 22 is set behind the focus of the convex lens, the originally converged light beam can form a diffused spot in the imaging unit 22 through the defocusing operation, and can also expand the spot area corresponding to the light beam and improve the uniformity of the light beam. In a specific embodiment, a biconcave lens, a plano-concave lens or a convex lens can be selected as the amplification unit 12 according to actual needs, or other structures that can achieve light beam amplification can be selected as the amplification unit 12, which is not limited to a biconcave lens, a plano-concave lens or a convex lens.

[0054] In one embodiment, an emission aperture 15 for filtering stray portions at the edge of the light beam is provided between the emission light source 11 and the amplification unit 12 .

[0055] In this embodiment, by setting an emission aperture 15 between the emission light source 11 and the amplification unit 12, and using the emission aperture 15 to filter the stray part of the edge of the light beam, the influence of the stray part of the edge of the light beam on the final imaging contrast can be reduced, making the final imaging effect clearer. At the same time, filtering the stray part of the edge of the light beam can also more effectively utilize the effective light source in the middle part of the light beam, thereby ensuring that a higher quality and more stable light source is used during the imaging process, thereby improving the brightness and uniformity of the final imaging.

[0056] In one embodiment, a reflection unit 16 is disposed between the amplifying unit 12 and the first collimating unit 13 , and the reflection unit 16 is used to reflect the light beam amplified and output by the amplifying unit 12 to the first collimating unit 13 .

[0057] Preferably, the reflection unit 16 is a 45° total reflection mirror.

[0058] In this embodiment, by setting a reflection unit 16 between the amplifying unit 12 and the first collimating unit 13, the reflection unit 16 can change the optical propagation path of the light beam amplified and output by the amplifying unit 12 through a reflection mechanism, and reflect the light beam to the first collimating unit 13 for the next step of light collimation processing. Furthermore, a 45° total reflection mirror can be selected as the reflection unit 16, so that the light beam can be reflected in a direction perpendicular to the original light path direction, thereby controlling the optical propagation path of the light beam. In other embodiments, according to the specific structure of the correction sensor, a reflector with other angles can be selected to reflect the light beam, so that the difficulty of the structural design of the correction sensor due to the limitation of the light beam propagation angle can be avoided, thereby increasing the flexibility of the shape of the correction sensor.

[0059] Combination Figure 8 and Fig. 9 As shown, in one embodiment, the launch assembly 10 further includes a launch fixing unit 17, and the launch fixing unit 17 is provided with a first fixing surface, a second fixing surface and a third fixing surface distributed in a triangular shape;

[0060] The first fixing surface is used for fixing and mounting the amplifying unit 12 , the second fixing surface is used for fixing and mounting the reflecting unit 16 , and the third fixing surface is used for fixing and mounting the first collimating unit 13 .

[0061] Preferably, the receiving assembly 20 further includes a receiving fixing unit 24, and the receiving fixing unit 24 is provided with a fourth fixing surface and a fifth fixing surface facing away from the receiving fixing unit 24;

[0062] The fourth fixing surface is used for fixing and mounting the second collimating unit 21 , and the fifth fixing surface is used for fixing and mounting the imaging unit 22 .

[0063] In this embodiment, by setting a transmitting fixing unit 17 in the transmitting component 10, and setting a first fixing surface, a second fixing surface, and a third fixing surface distributed in a triangular shape on the transmitting fixing unit 17, the three fixing surfaces of the transmitting fixing unit 17 can be used to install and fix the amplifying unit 12, the reflecting unit 16, and the first collimating unit 13, respectively, so as to fully utilize the internal space of the transmitting component 10. Similarly, in this embodiment, by setting a receiving fixing unit 24 in the receiving component 20, and setting a fourth fixing surface and a fifth fixing surface on the receiving fixing unit 24 facing away, the two fixing surfaces of the receiving fixing unit 24 can be used to fix the second collimating unit 21 and the imaging unit 22, respectively, so as to fully utilize the internal space of the receiving component 20. In this embodiment, by setting a fixing unit including multiple fixing surfaces, and using the fixing unit to install and fix multiple components of the correction sensor, respectively, the space utilization effect of the correction sensor can be further improved.

[0064] In a specific embodiment, the emission fixing unit 17 is in the shape of a triangular prism, and the three side surfaces of the triangular prism are respectively set as the first fixing surface, the second fixing surface and the third fixing surface. Further, a gap for light beam propagation is provided inside the emission fixing unit 17, and the light beam enters the emission fixing unit 17 through the amplifying unit 12, propagates to the reflecting unit 16 for reflection, and finally propagates in the first collimating unit 13 inside the emission fixing unit 17. It can be understood that the first fixing surface, the second fixing surface and the third fixing surface are all surfaces through which the light beam can pass. Specifically, notches corresponding to the amplifying unit 12, the reflecting unit 16 and the first collimating unit 13 can be respectively opened on the three side surfaces (i.e., the first fixing surface, the second fixing surface and the third fixing surface) of the emission fixing unit 17, and the amplifying unit 12, the reflecting unit 16 and the first collimating unit 13 are embedded in the corresponding notches, so that the light beam can pass through the first fixing surface, the second fixing surface and the third fixing surface for propagation.

[0065] Alternatively, in other specific embodiments, a triangular prism-shaped turning prism can also be set as the emitting fixed unit 17. The turning prism includes an incident surface, a reflecting surface and an exiting surface. The light beam emitted by the amplifying unit 12 enters the turning prism through the incident surface, and is reflected by the reflecting surface to the exiting surface, and finally is emitted from the exiting surface to the first collimating unit 13, that is, the reflecting surface of the turning prism is equivalent to the reflecting unit 16.

[0066] In another specific embodiment, the receiving fixed unit 24 is a rectangular parallelepiped, and the light beam can pass through the inside of the rectangular parallelepiped. The rectangular parallelepiped has three groups of back-to-back faces, one group of which is set as the fourth fixed face and the fifth fixed face, and the fourth fixed face and the fifth fixed face are both faces through which the light beam can pass.

[0067] In one embodiment, the transmitting assembly 10 is installed in a transmitting housing 30, and the transmitting housing 30 has a transmitting window 31; the receiving assembly 20 is installed in a receiving housing 40, and the receiving housing 40 has a receiving window 41;

[0068] After being collimated by the first collimating unit 13 , the light beam is incident on the emitting window 31 and the receiving window 41 in sequence, and then is incident on the second collimating unit 21 through the receiving window 41 .

[0069] In this embodiment, the transmitting assembly 10 is installed by providing a transmitting shell 30, and a transmitting window 31 is opened on the transmitting shell 30. The receiving assembly 20 is installed by providing a receiving shell 40, and a receiving window 41 is opened on the receiving shell 40. On this basis, after the first collimation unit 13 collimates the light beam, the light beam is emitted from the transmitting window 31 and incident on the receiving window 41, and then incident on the second collimation unit 21 through the receiving window 41.

[0070] Combination Figure 3 and Figure 4 As shown, in a specific embodiment, the emission window 31 is provided with an emission window piece 32 capable of transmitting a light beam, and the receiving window 41 is provided with a receiving window piece 42 capable of transmitting a light beam. The emission window piece 32 can seal the emission window 31, thereby preventing external impurities from contacting the first collimation unit 13 through the emission window 31, thereby preventing the collimation effect of the first collimation unit 13 from being affected. Similarly, the receiving window piece 42 can seal the receiving window 41, thereby preventing external impurities from contacting the second collimation unit 21 through the receiving window 41, thereby preventing the collimation effect of the second collimation unit 21 from being affected.

[0071] In another specific embodiment, a transmitting circuit dustproof plate 33 is also provided on the transmitting shell 30, and the transmitting circuit dustproof plate 33 covers the transmitting circuit board 14, and isolates the transmitting circuit board 14 from the external environment by cooperating with the transmitting shell 30, thereby preventing external impurities from contacting the transmitting circuit board 14 and affecting its normal operation. Similarly, a receiving circuit dustproof plate 43 is also provided on the receiving shell 40, and the receiving circuit dustproof plate 43 covers the receiving circuit board 23, and isolates the receiving circuit board 23 from the external environment by cooperating with the receiving shell 40, thereby preventing external impurities from contacting the receiving circuit board 23 and affecting its normal operation. In addition, corresponding dustproof plates can also be provided above the transmitting fixed unit 17 and the receiving fixed unit 24, and similarly prevent external impurities from contacting the normal operation of each component in the correction sensor by cooperating with the transmitting shell 30 or the receiving shell 40.

[0072] Furthermore, the emitting component 10 also includes a light source fixing member 18 and a light source circuit board 19, the emitting light source 11 and the emitting aperture 15 are arranged on the light source fixing member 18 with their backs to each other and are respectively installed and fixed on the light source fixing member 18, and the emitting light source 11 is electrically connected to the emitting circuit board 14 through the light source circuit board 19.

[0073] In addition, screw holes respectively matching the emission fixing unit 17, the light source fixing member 18 and the emission circuit dustproof plate 33 are provided in the emission housing 30, and the screws and the screw holes cooperate to fix the components in the emission housing 30. Similarly, screw holes respectively matching the reception fixing unit 24 and the reception circuit dustproof plate 43 are provided in the receiving housing 40, and the screws and the screw holes cooperate to fix the components in the emission housing 30.

[0074] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

[0075] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A deviation correction sensor, characterized in that: It includes a transmitting component and a receiving component; The transmitting assembly comprises a transmitting light source, an amplifying unit, a first collimating unit and a transmitting circuit board, and the transmitting light source is electrically connected to the transmitting circuit board; The receiving assembly includes a second collimating unit, an imaging unit and a receiving circuit board, and the imaging unit is electrically connected to the receiving circuit board; Among them, the emitting light source of the emitting component emits a light beam, which is incident on the amplifying unit and the first collimating unit in turn for amplification and collimation, and is incident on the receiving component, and then collimated by the second collimating unit and incident on the imaging unit, and is imaged and output by the imaging unit.

2. The correction sensor according to claim 1, characterized in that: The first collimating unit is a first biconical lens, and the second collimating unit is a second biconical lens; The incident surface of the first biconical lens is a plane, and the exit surface is a convex surface; the incident surface of the second biconical lens is a convex surface, and the exit surface is a plane.

3. The correction sensor according to claim 1, characterized in that: The magnifying unit is a biconcave lens or a plano-concave lens for magnifying the central concentrated part of the light beam, or a convex lens for defocusing and magnifying the light beam.

4. The correction sensor according to claim 1, characterized in that: An emission aperture for filtering stray parts at the edge of the light beam is arranged between the emission light source and the amplification unit.

5. The correction sensor according to claim 1, characterized in that: A reflection unit is arranged between the amplifying unit and the first collimating unit, and the reflection unit is used to reflect the light beam amplified and output by the amplifying unit to the first collimating unit.

6. The correction sensor according to claim 5, characterized in that: The launch assembly further includes a launch fixing unit, wherein the launch fixing unit is provided with a first fixing surface, a second fixing surface and a third fixing surface distributed in a triangular shape; The first fixing surface is used for fixing and installing the amplifying unit, the second fixing surface is used for fixing and installing the reflecting unit, and the third fixing surface is used for fixing and installing the first collimating unit.

7. The correction sensor according to claim 1, characterized in that: The receiving assembly further comprises a receiving and fixing unit, and the receiving and fixing unit is provided with a fourth fixing surface and a fifth fixing surface facing away from the receiving and fixing unit; The fourth fixing surface is used for fixing and mounting the second collimating unit, and the fifth fixing surface is used for fixing and mounting the imaging unit.

8. The correction sensor according to claim 1, characterized in that: The transmitting assembly is installed in a transmitting shell, and the transmitting shell has a transmitting window; the receiving assembly is installed in a receiving shell, and the receiving shell has a receiving window; After being collimated by the first collimating unit, the light beam is incident on the transmitting window and the receiving window in sequence, and then is incident on the second collimating unit through the receiving window.

9. The correction sensor according to claim 5, characterized in that: The reflection unit is a 45° total reflection mirror.

10. The correction sensor according to claim 1, characterized in that: The imaging unit is a CMOS photosensitive chip.

Images