Small optical detection system and detection method thereof

Abstract

The invention discloses a small optical detection system and an optical detection method thereof, and belongs to the technical field of optical detection. The problem that an existing small optical detection system cannot achieve manual switching of multiple target positions and adjustment of the relative position of a functional lens and an integrating sphere is solved. The small optical detection system comprises a manual target switching device. The manual target switching device comprises a supporting unit, a target wheel disc unit and a limiting unit. The target wheel disc unit comprises an impeller disc and a target wheel disc, and a plurality of target positions are arranged on the target wheel disc; the target wheel disc and the pulsator disc are both arranged on the supporting unit, and the pulsator disc can drive the target wheel disc to rotate so as to switch target positions; the limiting unit is used for limiting rotation of the target wheel disc so that the target wheel disc can only switch one target position. The small optical detection system provided by the invention can simultaneously realize switching of target positions and change the transmittance of incident light by using the functional lens.

Description

Technical Field

[0001] The present invention relates to the field of optical detection technology, and in particular to a small optical detection system and a detection method thereof. Background Art

[0002] In optical detection and calibration devices and optical simulators, it is usually necessary to provide observable standard target patterns. The optical target is produced by placing a metal hollow pattern sheet or a glass sheet with a logo pattern printed in front of a light source such as a black body, an integrating sphere or a laser, and forming a specific pattern by partially blocking the light, thereby obtaining a target pattern target. Most equipment usually needs to achieve more than two target switching, so there are a variety of target switching devices. The existing electric target wheels are expensive, heavy, and cannot be used outdoors. The manual plug-in target board is light in weight and simple in structure, but each target board can only have one target pattern, and there are still shortcomings in target switching. In addition, due to the structural limitations of the target plug-in board, small targets are not very suitable when the space is relatively small.

[0003] In order to make the instrument work within a specific wavelength range, the incident energy of the light source is processed, and a functional lens is placed at the incident light. When necessary, the lens is inserted to adjust the transmittance of the light, and when not needed, the functional lens is removed from the light path. Therefore, the lens needs to be equipped with a motion adjustment structure tooling. The existing technology manually pushes and pulls the functional lens, which is difficult to calibrate and has low positioning accuracy. Summary of the invention

[0004] In view of the above analysis, the present invention aims to provide a small optical detection system and a detection method thereof, so as to solve the technical problem that the existing target switching device and lens linear motion device are not applicable to the small optical detection system.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] On the one hand, the present invention provides a small optical detection system, including a manual target switching device, a lens linear motion device and an integrating sphere; the lens linear motion device is used to switch the transmittance of the incident light in front of the integrating sphere;

[0007] The manual target switching device comprises a supporting unit, a target wheel unit and a limiting unit;

[0008] The target wheel unit includes a wave wheel and a target wheel, and a plurality of target positions are arranged on the target wheel; the target wheel and the wave wheel are both arranged on the supporting unit, and the wave wheel can drive the target wheel to rotate so as to switch the target position; the limiting unit is used to limit the rotation of the target wheel so that it only switches one target position.

[0009] In one possible design, the support unit includes a vertical mounting support; a horizontal fixed shaft is provided in the middle of the vertical mounting support, the impeller and the target wheel are both provided on the horizontal fixed shaft and the two are fixedly connected, and the target wheel can rotate around the horizontal fixed shaft at a certain angle to switch the target position.

[0010] In a possible design, the support unit further includes a fixing plate;

[0011] The fixed disc, the impeller disc and the target disc are arranged on the horizontal fixed shaft in sequence. The fixed disc is arranged at one end away from the vertical mounting support. The fixed disc is used to fix the impeller disc and the target disc. The three are fixedly connected and can rotate synchronously around the horizontal fixed shaft.

[0012] In one possible design, the wave wheel disc is a circular disc, and the target wheel disc is a sector disc;

[0013] A first axial hole is arranged at the center of the fixed disk, the impeller disk and the target disk, and the horizontal fixed axis passes through the first axial hole.

[0014] In a possible design, a plurality of limit slots are provided on the impeller disk, the number of the limit slots is equal to the number of the target positions and the positions of the two correspond.

[0015] In a possible design, a transmission unit is further included, and the transmission unit includes a first transmission component and a second transmission component that are meshed with each other.

[0016] In a possible design, the first transmission component can drive the second transmission component to rotate, and the second transmission component is fixedly connected to the fixed disk, the impeller disk and the target disk through fasteners and can rotate synchronously.

[0017] In a possible design, a force-applying component is further included, which is used to apply force to the first transmission component, so that the first transmission component drives the second transmission component to rotate and then drives the fixed disk, the impeller disk and the target wheel disk to rotate to switch the target position.

[0018] In a possible design, the transmission unit further includes a transmission rod;

[0019] The force applying component is a force applying handle; one end of the transmission rod is fixedly connected to the force applying handle, and the other end of the transmission rod is fixedly connected to the first transmission component.

[0020] On the other hand, the present invention also provides a detection method of a small optical detection system, which uses the small optical detection system to switch the target pattern and change the transmittance of the incident light in front of the integrating sphere.

[0021] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0022] (1) The small optical detection system of the present invention can realize the reciprocating rapid switching of the target (target pattern) and the high-precision linear motion of the functional lens.

[0023] (2) The present invention can realize the rapid rotation switching between clockwise and counterclockwise of the target by utilizing the elastic potential energy of the extension spring, the angular positioning of the impeller disk, and the guiding characteristics of the screw bearing.

[0024] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the embodiments of the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are only for the purpose of illustrating specific embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0026] Figure 1 The structure of the small optical detection system of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 2 The structure of the small optical detection system of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 3 It is a structural schematic diagram of a manual target switching device of a small optical detection system of the present invention;

[0029] Figure 4 It is a partial structural schematic diagram of a manual target switching device of a small optical detection system of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the lens linear motion device of the small optical detection system of the present invention.

[0031] Reference numerals:

[0032] 1-pulsator; 2-target wheel; 3-first target position; 4-second target position; 5-third target position; 6-first limit slot; 7-second limit slot; 8-third limit slot; 9-vertical mounting support; 10-support base; 11-first vertical support rod; 12-driving gear; 13-driven gear; 14-force application handle; 15-transmission rod; 16-limit support; 17-L-type linkage swing arm; 18-tension spring ; 19-base; 20-vertical column; 21-screw bearing; 22-turning point; 23-bearing seat; 24-initial target position; 25-fixed plate; 26-mounting plate; 27-linear guide; 28-first slider; 29-second slider; 30-vertical support body; 31-lateral support frame; 32-lens compartment; 33-integrating sphere; 34-gear; 35-rack; 36-rotating handle; 37-force rod. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0034] The present invention provides a small optical detection system, such as Figure 1 and Figure 2 As shown, it includes a manual target switching device, a lens linear motion device and an integrating sphere; wherein the lens linear motion device is used to switch the transmittance of the incident light in front of the integrating sphere; the manual target switching device includes a supporting unit, a target wheel unit and a limiting unit; the target wheel unit includes a wave wheel 1 and a target wheel 2, and a plurality of target positions are arranged on the target wheel 2; the target wheel 2 and the wave wheel 1 are both arranged on the supporting unit, and the wave wheel 1 can drive the target wheel 2 to rotate so as to switch the target position; the limiting unit is used to limit the rotation of the target wheel 2 so that it only switches one target position.

[0035] Specifically, the manual target switching device of the present invention is arranged in front of a light source such as an integrating sphere or a laser, and forms a specific pattern by partially blocking the light, thereby obtaining a target pattern target. In order to be able to manually switch the target pattern, the manual target switching device of the present invention includes a support unit, a target wheel unit and a limit unit; wherein the support unit is arranged in front of a light source such as an integrating sphere or a laser, the target wheel unit is arranged on the support unit, and the limit unit is arranged on one side of the target wheel unit; a plurality of target positions are arranged on the target wheel 2, for example, 3 target positions, and a target is bonded to each target position; when the target position needs to be switched, the impeller 1 is rotated to generate a rotational displacement, and at the same time, the impeller 1 drives the target wheel 2 to rotate synchronously at the same angle until the target position aligned with the light source is switched to another target position and aligned with the light source; at this time, the limit unit is used to apply resistance to the target wheel 2 to prevent the target wheel 2 from rotating further, so as to ensure that the target wheel 2 only switches one target position.

[0036] Compared with the prior art, the manual target switching device of the present invention is suitable for small optical detection systems. The existing electric target switching devices are expensive, heavy and occupy a large space, and cannot be applied to small optical detection systems. 3 The target switching is realized in a small space, and it adopts a manual drive mode, has a simple structure, is light in weight, occupies a small space, is low in cost, and can be applied to a small optical detection system. The small optical detection system of the present invention can be applied to a night vision device, and the night vision device is mostly used in outdoor work scenes.

[0037] In order to fix the impeller 1 and the target wheel 2, as Figure 4 As shown, the support unit of the present invention includes a vertical mounting support 9; a horizontal fixed axis is provided in the middle of the vertical mounting support 9, the impeller 1 and the target wheel 2 are both provided on the horizontal fixed axis and the two are fixedly connected, and the target wheel 2 can rotate around the horizontal fixed axis at a certain angle to switch the target position.

[0038] Specifically, the support unit includes a vertical mounting support 9, which includes a support base 1910, a mounting plate, a first vertical support rod 11 and a second vertical support rod. The first vertical support rod 11 and the second vertical support are installed at both ends of the support base 1910. The mounting plate is arranged on the top of the first vertical support rod 11 and the second vertical support rod and is fixedly connected to the two. One of the disk surfaces of the mounting plate is defined as the first disk surface, and the other disk surface is defined as the second disk surface. The first disk surface and the second disk surface are opposite disk surfaces. The mounting plate is also arranged in the vertical direction. The first disk surface of the mounting plate is fixedly connected to the first vertical support rod 11 and the second vertical support rod. The first vertical support rod 11 and the second vertical support rod are used to ensure the installation stability of the mounting plate. A horizontal fixed axis perpendicular to the second disk surface of the mounting disk is provided at the center of the second disk surface, and both the impeller disk 1 and the target wheel disk 2 are provided on the horizontal fixed axis, and the target wheel disk 2 is provided at one end close to the second disk surface of the mounting disk, and the impeller disk 1 is provided at one end away from the second disk surface, and the target wheel disk 2 and the impeller disk 1 are fixed together; since a plurality of target positions are provided on the target wheel disk 2, when it is necessary to switch the target position to switch the target, the target wheel disk 2 and the impeller disk 1 can generate a rotational displacement around the horizontal fixed axis under the action of an external force to switch a target position; after the target position is switched, the limit unit can prevent the impeller disk 1 and the target wheel disk 2 from further rotating to ensure that only one target position is switched each time.

[0039] Compared with the prior art, the present invention fixes the impeller wheel 1 and the target wheel 2 through the supporting unit, thereby ensuring stable switching of the target position.

[0040] It should be noted that the first disk surface of the mounting disk is fixedly connected to the first vertical support rod 11 and the second vertical support rod by bolts or by welding.

[0041] In order to prevent the impeller 1 and the target wheel 2 from moving on the horizontal fixed axis, Figure 4 As shown, the support unit of the present invention also includes a fixed plate; the fixed plate is also arranged on the horizontal fixed axis and is located on one side of the impeller disc 1. The fixed plate is used to fix the impeller disc 1 and the target disc 2. The three are fixedly connected and can rotate synchronously around the horizontal fixed axis.

[0042] Specifically, the fixed disk is also arranged on the horizontal fixed axis, and the fixed disk is arranged adjacent to the impeller disk 1. The fixed disk, the impeller disk 1, the target wheel disk 2 and the installation disk are arranged in sequence and parallel to each other. The fixed disk is used to fix the impeller disk 1 and the target wheel disk 2 on the horizontal fixed axis, thereby limiting their freedom in the horizontal direction. In addition, the fixed disk, the impeller disk 1 and the target wheel disk 2 are fixedly connected, and the three can rotate synchronously around the horizontal fixed axis under the action of external force to switch the target position.

[0043] Compared with the prior art, the present invention can limit the freedom of the impeller wheel 1 and the target wheel 2 in the horizontal direction by setting a fixed disk on the horizontal fixed axis, thereby preventing the two from moving along the horizontal fixed axis and affecting the switching of the target position.

[0044] It should be noted that if Figure 3 As shown, the impeller disc 1 of the present invention is a circular disc, and the target disc 2 is a fan-shaped disc; a first axial hole is provided at the center of the fixed disc, the impeller disc 1 and the target disc 2, and a horizontal fixed shaft passes through the first axial hole.

[0045] In order to prevent the impeller 1 from further rotating after switching the target position, Figure 3 As shown, the impeller disc 1 of the present invention is provided with a plurality of limit grooves, the number of the limit grooves is equal to the number of target positions and the positions of the two correspond, and the limit unit includes a limit block, which can prevent the impeller disc 1 from further rotating by being embedded in the limit groove.

[0046] Specifically, the target position of the present invention includes a first target position 3, a second target position 4 and a third target position 5, and a corresponding target is pasted on each target position. A plurality of limiting grooves include a first limiting groove 6, a second limiting groove 7 and a third limiting groove 8 with the same structure; the first limiting groove 6, the second limiting groove 7 and the third limiting groove 8 are sequentially arranged at the edge of the impeller 1 and their positions are arranged from low to high, the first limiting groove 6, the second limiting groove 7 and the third limiting groove 8 are all concave arc grooves, and the three form three adjacent gear teeth of the impeller 1, and the limiting block can slide in and out of the limiting groove under the action of external force. Among them, the position of the first limit groove 6 corresponds to the third target position 5, the position of the second limit groove 7 corresponds to the second target position 4, and the position of the third limit groove 8 corresponds to the first target position 3; the position of the second target position 4 when facing the light source (integrating sphere) is defined as the initial target position 24, and the limit block is embedded in the second limit groove 7 at this time; when the second target position 4 needs to be switched to the first target position 3, the impeller 1 is rotated clockwise to produce a downward rotational displacement, and the impeller 1 drives the target wheel 2 to rotate synchronously with the same rotational displacement until the first target position 3 rotates to the initial target position 24. At the same time, the limit block slides into the third limit groove 8 to prevent the impeller 1 from further rotating, thereby realizing the target position switching action. When it is necessary to switch the second target position 4 to the third target position 5, the impeller 1 is rotated counterclockwise to produce an upward rotational displacement, and the impeller 1 drives the target wheel 2 to rotate synchronously with the same rotational displacement until the third target position 5 rotates to the initial target position 24. At the same time, the limit block slides into the first limit groove 6 to prevent the impeller 1 from rotating further, thereby realizing the target position switching action.

[0047] Compared with the prior art, the target wheel 2 of the present invention is provided with a plurality of target positions, which can realize the switching of a plurality of targets and meet the demand of a small optical detection system for switching a plurality of targets.

[0048] In order to prevent the impeller 1 from further rotating, the limiting unit of the present invention comprises a limiting support 16, an L-shaped linkage swing arm 17 and an elastic component; the limiting support 16 comprises a fixed base 19 and a vertical column 20, the vertical column 20 is arranged on the fixed base 19, and the L-shaped linkage swing arm 17 is fixed on the vertical column 20 through its turning point 22; a limiting block is arranged at the first end of the L-shaped linkage swing arm 17, and the limiting block is arranged in the initial limiting groove (the second limiting groove 7); one end of the elastic component is fixedly connected to the second end of the L-shaped linkage swing arm 17, and the other end is fixed to the fixed base 19. When a pulling force is applied to the second end of the L-shaped linkage swing arm 17, the limiting block can prevent the impeller 1 from further rotating.

[0049] Specifically, the above-mentioned limit block is a screw bearing 21, and the position when the second target position 4 is facing the light source (integrating sphere) is defined as the initial target position 24. At this time, the screw bearing 21 is embedded in the second limit groove 7, and the screw bearing 21 is in contact with the inner wall surface of the second limit groove 7; when it is necessary to switch the first target position 3 to the initial target position 24, the impeller 1 is rotated clockwise, and the impeller 1 drives the target wheel 2 to rotate synchronously and generate a downward rotational displacement until the first target position 3 on the target wheel 2 moves to the target initial position. At this time, due to the rotation of the impeller 1, the screw bearing 21 is moved in the impeller. The gear teeth of the wheel disc 1 move smoothly and produce downward displacement at the same time. The L-shaped linkage swing arm 17 rotates with its turning point 22 as the axis. One end of the elastic component (such as a tension spring 18) is fixed on the fixed base 19, and the other end is fixed on the second end of the L-shaped linkage swing arm 17. The rotation of the L-shaped linkage swing arm 17 causes the tension spring 18 to produce tension deformation. The screw bearing 21 is driven by the tension spring 18 to stop in the limit groove of the next nearest impeller 1 (i.e., the third limit groove 8), and a clicking sound is emitted, thereby realizing the switching of the first target position 3 to the initial target position 24.

[0050] Correspondingly, when it is necessary to switch the third target position 5 to the initial target position, the impeller 1 is rotated counterclockwise, and the impeller 1 drives the target wheel 2 to rotate synchronously and produce an upward rotational displacement. At this time, the third target position 5 on the target wheel 2 moves to the initial target position. At the same time, due to the rotation of the impeller 1, the screw bearing 21 moves smoothly on the gear teeth of the impeller 1 and produces an upward displacement, so that the L-shaped linkage swing arm 17 rotates around its turning point 22 as the axis. One end of an elastic component such as a tension spring 18 is fixed on a fixed base 19, and the other end is fixed on the second end of the L-shaped linkage swing arm 17. The rotation of the L-shaped linkage swing arm 17 causes the tension spring 18 to produce a tensile deformation. The screw bearing 21 is driven by the tension spring 18 to stop in the limit groove of the next nearest impeller 1 (i.e., the first limit groove 6), and a clicking sound is emitted, thereby realizing the switching of the third target position 5 to the initial target position 24.

[0051] The small optical detection system of the present invention also includes a transmission unit and a force-applying component; the transmission unit includes a first transmission component and a second transmission component that are meshed with each other; the second transmission component is fixedly connected to the fixed disk, the impeller disk 1 and the target wheel disk 2 by fasteners and can rotate synchronously; the force-applying component is used to apply force to the first transmission component, and the first transmission component drives the fixed disk, the impeller disk 1 and the target wheel disk 2 to rotate by driving the second transmission component to switch the target position.

[0052] Specifically, the first transmission component of the present invention is a driving gear 12, and the second transmission component is a driven gear 13. The driven gear 13 is fixedly connected to the fixed plate, the impeller plate 1 and the target wheel plate 2 by fasteners such as bolts to form an integral structure. The driven gear 13 is arranged on a horizontal fixed shaft, and the driven gear 13 is meshed with the driving gear 12. When the force-applying component applies a clockwise or counterclockwise force to the driving gear 12, the driving gear 12 can drive the driven gear 13 to rotate in a clockwise or counterclockwise direction, and then the driven gear 13 drives the fixed plate, the impeller plate 1 and the target wheel plate 2 to rotate synchronously and generate a rotational displacement, thereby realizing target switching.

[0053] Compared with the prior art, the present invention drives the impeller 1 and the target wheel 2 to rotate by utilizing a force-applying component, a driving gear 12 and a driven gear 13. The present invention has a simple structure and occupies a small space, and is suitable for a small optical detection system.

[0054] It should be noted that the transmission unit of the present invention further includes a transmission rod 15; the force applying component is a force applying handle 14; one end of the transmission rod 15 is fixedly connected to the force applying handle 14, and the other end is fixedly connected to the first transmission component.

[0055] Specifically, one end of the transmission rod 15 is fixedly connected to the force handle 14, and the other end is fixedly connected to the driving gear 12, and the driving gear 12 is fixed on the transmission rod 15; the driving gear 12 can be driven to rotate by gently turning the force handle 14 clockwise or counterclockwise, and the driving gear 12 drives the driven gear 13 to rotate. Since the driven gear 13, the fixed plate, the impeller plate 1 and the target wheel plate 2 are fixedly connected by bolts, the target wheel plate 2 can produce a rotational displacement, thereby realizing the target rotation switching.

[0056] Compared with the prior art, the present invention utilizes the transmission rod 15 to drive the driving gear 12 to rotate, which can easily realize the target switching, has a simple structure, and is easy to operate.

[0057] In order to support and guide the transmission rod 15, the transmission unit of the present invention also includes a bearing seat 23, which is arranged between the force handle 14 and the first transmission component. The bearing seat 23 is provided with a second axial hole, and the transmission rod 15 is horizontally arranged and passes through the second axial hole.

[0058] Specifically, the bearing seat 23 is a rectangular structure, and a second axial hole is provided near the top of the bearing seat 23. The transmission rod 15 passes through the second axial hole. When the force handle 14 drives the driving gear 12 to rotate through the transmission rod 15, the bearing seat 23 can provide support and guidance for the transmission rod 15 to prevent the transmission rod 15 from shaking and deflecting.

[0059] In summary, the present invention can achieve rapid clockwise and counterclockwise rotation switching of the target by utilizing the elastic potential energy of the tension spring 18 , the angular positioning of the impeller 1 , and the guiding characteristics of the screw bearing 21 .

[0060] It should be noted that if Figure 1 and Figure 2 As shown, the above-mentioned lens linear motion device includes a fixed unit, a sliding unit, a driving unit and a lens unit; the driving unit and the sliding unit are both arranged on the fixed unit, and the lens unit is arranged on the sliding unit; the lens unit includes a lens bin 32 and a functional lens, and the functional lens is arranged in the lens bin 32. The driving unit can drive the sliding unit so that the sliding unit drives the lens bin 32 unit to perform reciprocating motion, thereby changing the relative position of the functional lens and the integrating sphere 33.

[0061] Specifically, the sliding unit and the driving unit of the present invention are both arranged on the fixed unit; wherein, the driving unit is arranged below the sliding unit, and the first end of the sliding unit is arranged on the fixed unit; the lens unit includes a lens bin 32 and a functional lens, the lens bin 32 is a rectangular hollow bin, the top of the lens bin 32 is provided with a circular opening, and the bottom of the lens bin 32 is fixed to the second end of the sliding unit by bolts, when it is necessary to insert a functional lens to adjust the transmittance of the incident light, the driving unit is used to drive the sliding unit to move toward the direction close to the integrating sphere 33, since the lens bin 32 is arranged on the second end of the sliding unit, the sliding unit can drive the lens bin 32 to move to the incident light in the integrating sphere 33; when the functional lens is not needed, the driving unit is used to drive the sliding unit to move in the direction away from the integrating sphere 33, so that the sliding unit drives the lens bin 32 to withdraw from the incident light in the integrating sphere 33.

[0062] Compared with the prior art, the present invention can adjust the relative position of the functional lens and the incident light in the integrating sphere 33 through the fixing unit, the driving unit, the sliding unit and the lens unit, thereby realizing the processing of the incident light energy.

[0063] like Figure 5As shown, the sliding unit of the present invention includes a linear guide 27, a first slider 28 and a second slider 29; the fixed unit includes a vertical support body 30 and a horizontal support frame 31, the horizontal support frame 31 is arranged on one side of the top of the vertical support body 30 and the two are arranged vertically; the first end of the linear guide 27 is arranged in the horizontal support frame 31, and the second end of the linear guide 27 can slide into the integrating sphere 33; the lens bin 32 is arranged on the second end of the linear guide 27; the first slider 28 and the second slider 29 are arranged on the first end of the linear guide 27 and are slidably connected to the linear guide 27; the tops of the first slider 28 and the second slider 29 are fixedly connected to the horizontal support frame 31; the driving unit is arranged on the horizontal support frame 31 and is located below the linear guide 27, and the driving unit can drive the linear guide 27 to drive the lens bin 32 to perform reciprocating linear motion.

[0064] Specifically, the fixing unit of the present invention includes a vertical support body 30 and a horizontal support frame 31; wherein the horizontal support frame 31 is a rectangular hollow structure, and the horizontal support frame 31 is arranged on one side of the vertical support body 30 along its width direction, and the two are fixedly connected by bolts; a fixing plate is arranged at the top of the horizontal support frame 31 and along its width direction, and the first slider 28 and the second slider 29 are both arranged at the bottom of the fixing plate and fixedly connected thereto; the first end of the linear guide rail 27 is arranged below the fixing plate and parallel to the fixing plate, and the first slider 28 and the second slider 29 are separated by a certain distance, and the two can slide on the linear guide rail 27; the second end of the linear guide rail 27 The first end of the linear guide 27 can move to the incident light position of the integrating sphere 33. The driving unit is also fixed on the horizontal support frame 31 and is located below the first end of the linear guide 27. The driving unit can drive the linear guide 27 to slide relative to the first slider 28 and the second slider 29. When it is necessary to insert a functional lens to adjust the transmittance of the incident light, the driving unit drives the linear guide 27 to move toward the integrating sphere 33 until the linear guide 27 drives the functional lens to move to the incident light position in the integrating sphere 33. When the functional lens is not needed, the driving unit drives the linear guide 27 to move away from the integrating sphere 33 until the lens compartment 32 is withdrawn from the incident light position in the integrating sphere 33.

[0065] Compared with the prior art, the present invention fixes the first slider 28 and the second slider 29 to make the linear guide 27 move relative to the first slider 28 and the second slider 29, thereby guiding the linear guide 27, and drives the linear guide 27 to reciprocate, thereby controlling and changing the relative position of the functional lens and the incident light of the integrating sphere 33.

[0066] In order to improve the movement accuracy of the linear guide 27, the driving unit of the present invention includes a gear 34 and a rack 35; the rack 35 is arranged on the bottom surface of the first end of the linear guide 27, the gear 34 is fixed on the inner wall of the horizontal support frame 31, and the gear 34 is meshed with the rack 35.

[0067] It should be noted that the driving unit of the present invention also includes a rotating handle 36 and a force rod 37. A third axial hole is provided at the connection between the vertical support body 30 and the horizontal support frame 31. The force rod 37 passes through the third axial hole. One end of the force rod 37 is fixedly connected to the gear 34, and the other end is fixedly connected to the rotating handle 36.

[0068] Specifically, when it is necessary to change the relative position of the functional lens and the incident light point of the integrating sphere 33, the force rod 37 is rotated by using the rotating handle 36. The force rod 37 drives the rack 35 with the linear guide 27 through the gear 34. The reciprocating motion of the lens chamber 32 is achieved by the forward and reverse rotation of the gear 34, thereby achieving the change of the relative position of the functional lens and the incident light point of the integrating sphere 33.

[0069] The present invention also provides a detection method of a small optical detection system, which adopts the small optical detection system mentioned above. The detection method includes a target pattern switching process and a lens linear motion process.

[0070] The target pattern switching process of the present invention adopts the above-mentioned manual target switching device, and specifically includes the following steps:

[0071] Step 1, respectively bond the three targets to the first target position 3, the second target position 4 and the third target position 5, place the target wheel 2 at the initial target position 24, and the screw bearing 21 naturally fits in the second limiting groove 7;

[0072] Step 2, when it is necessary to switch the first target position 3 to the initial target position, the force applying handle 14 is gently pushed clockwise by an external force, and the force applying handle 14 drives the driving gear 12 to rotate through the transmission rod 15, and the driving gear 12 drives the driven gear 13 to rotate, and the driven gear 13 drives the fixed plate, the impeller plate 1 and the target wheel plate 2 to rotate synchronously and produce a downward rotational displacement, so that the first target position 3 on the target wheel plate 2 moves to the target initial position; at the same time, due to the rotation of the impeller plate 1, the screw bearing 21 moves smoothly at the gear teeth of the impeller plate 1, and produces a downward displacement, so that the L-shaped linkage swing arm 17 rotates with its turning point 22 as the axis, and the rotation of the L-shaped linkage swing arm 17 causes the tension spring 18 to produce tension deformation, and the screw bearing 21 is driven by the tension spring 18 to stop in the third limit groove 8, and a clicking sound is emitted, at this time, the action of switching the first target position 3 to the initial target position 24 is completed.

[0073] When it is necessary to switch the third target position 5 to the initial target position, the force applying handle 14 is gently pushed counterclockwise by an external force, and the force applying handle 14 drives the driving gear 12 to rotate through the transmission rod 15, and the driving gear 12 drives the driven gear 13 to rotate, and the driven gear 13 drives the fixed plate, the impeller plate 1 and the target wheel plate 2 to rotate synchronously and produce an upward rotational displacement, so that the third target position 5 on the target wheel plate 2 moves to the target initial position. At the same time, due to the rotation of the impeller plate 1, the screw bearing 21 moves smoothly on the gear teeth of the impeller plate 1 and produces an upward displacement, so that the L-shaped linkage swing arm 17 rotates with its turning point 22 as the axis. The rotation of the L-shaped linkage swing arm 17 causes the tension spring 18 to produce tension deformation, and the screw bearing 21 is driven by the tension spring 18 to stop in the first limit groove 6, and a clicking sound is made. At this time, the action of switching the third target position 5 to the initial target position 24 is completed.

[0074] The lens linear motion process of the present invention adopts the above-mentioned lens linear motion device, which specifically includes the following steps:

[0075] Step 1: first place the functional lens into the lens bin 32, the lens bin 32 is fixed to the second end of the linear guide rail 27 by bolts, and then the first slider 28 and the second slider 29 are fixed to the bottom surface of the fixed plate of the horizontal fixed frame to realize the positioning of the linear guide rail 27;

[0076] Step 2: fix the rack 35 to the bottom surface of the first end of the linear guide rail 27 by bolts, and fix the gear 34 below the rack 35 so that the two are meshed;

[0077] Step 3: The gear 34 is driven to rotate forward or reversely by rotating the handle 36 and the force rod 37, and the rack 35 drives the linear guide rail 27 to start reciprocating motion.

[0078] When it is necessary to insert a functional lens to adjust the transmittance of the incident light, the gear 34 drives the rack 35 to move the linear guide 27 in the direction close to the integrating sphere 33 until the linear guide 27 drives the functional lens to move to the incident light position in the integrating sphere 33; when the functional lens is not needed, the gear 34 drives the rack 35 to move the linear guide 27 in the direction away from the integrating sphere 33 until the lens compartment 32 is withdrawn from the incident light position in the integrating sphere 33.

[0079] Compared with the prior art, the present invention fixes the first slider 28 and the second slider 29, utilizes the gear 34 to drive the rack 35 with the linear guide 27, and realizes the reciprocating motion of the lens chamber 32 through the forward rotation and reverse rotation of the gear 34, thereby achieving the control of the relative position of the functional lens and the incident light of the integrating sphere 33.

[0080] In summary, when using the small optical detection system of the present invention, the lens chamber 32 is driven by the driving sliding unit to be placed on the integrating sphere 33, and the incident light changes the transmittance after passing through the functional lens (i.e., filter), and starlight can be obtained. Conversely, the functional lens can be removed from the light path to obtain faint light. In the above two cases, the light is then switched through the first target position, the second target position, and the third target position on the target wheel, so that 6 different simulated targets can be obtained.

[0081] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A small optical detection system, characterized in that: It includes a manual target switching device, a lens linear motion device and an integrating sphere; the lens linear motion device is used to switch the transmittance of the incident light in front of the integrating sphere; The manual target switching device comprises a supporting unit, a target wheel unit and a limiting unit; The target wheel unit includes a wave wheel and a target wheel, and a plurality of target positions are arranged on the target wheel; the target wheel and the wave wheel are both arranged on a supporting unit, and the wave wheel can drive the target wheel to rotate so as to switch the target position; the limiting unit is used to limit the rotation of the target wheel so that it only switches one target position.

2. The small optical detection system according to claim 1, characterized in that: The support unit includes a vertical mounting support; a horizontal fixed shaft is provided in the middle of the vertical mounting support, the impeller wheel and the target wheel are both provided on the horizontal fixed shaft and are fixedly connected, and the target wheel can rotate around the horizontal fixed shaft at a certain angle to switch the target position.

3. The small optical detection system according to claim 2, characterized in that: The support unit further includes a fixing plate; The fixed disk, the impeller disk and the target disk are sequentially arranged on the horizontal fixed shaft. The fixed disk is arranged at one end away from the vertical mounting support. The fixed disk is used to fix the impeller disk and the target disk. The three are fixedly connected and can rotate synchronously around the horizontal fixed shaft.

4. The small optical detection system according to claim 3, characterized in that: The impeller disc is a circular disc, and the target disc is a fan-shaped disc; A first axial hole is provided at the center of the fixed disk, the impeller disk and the target disk, and the horizontal fixed axis passes through the first axial hole.

5. The small optical detection system according to claim 4, characterized in that: The impeller disc is provided with a plurality of limit slots, the number of the limit slots is equal to the number of the target positions and the positions of the two correspond.

6. The small optical detection system according to claim 5, characterized in that: The invention also comprises a transmission unit, wherein the transmission unit comprises a first transmission component and a second transmission component which are meshed with each other.

7. The small optical detection system according to claim 6, characterized in that: The first transmission component can drive the second transmission component to rotate, and the second transmission component is fixedly connected to the fixed disk, the impeller disk and the target disk through fasteners and can rotate synchronously.

8. The small optical detection system according to claim 4, characterized in that: It also includes a force-applying component, which is used to apply force to the first transmission component, so that the first transmission component drives the second transmission component to rotate and then drives the fixed disk, the impeller disk and the target wheel disk to rotate to switch the target position.

9. The small optical detection system according to claim 8, characterized in that: The transmission unit also includes a transmission rod; The force applying component is a force applying handle; one end of the transmission rod is fixedly connected to the force applying handle, and the other end is fixedly connected to the first transmission component.

10. A detection method for a small optical detection system, characterized in that: The small optical detection system according to any one of claims 1 to 9 is used to switch the target pattern and change the transmittance of the incident light in front of the integrating sphere.

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