Optical calibration device for testing camera obscura

Abstract

The utility model provides an optical calibration device for a test camera obscura, belongs to the technical field of optical equipment, and solves the technical problems that an existing source is directly exposed to the environment, the structure enables a light source to be easily damaged, dust is easily accumulated on the light source, and the performance of an optical instrument is influenced. An optical calibration device for a test camera obscura comprises a storage box and a mounting circular plate rotationally connected in the storage box, a driving assembly for controlling the mounting circular plate to rotate is arranged in the storage box, a calibration assembly is arranged on the mounting circular plate, a mounting opening is formed in the storage box, and a dust cover is detachably arranged in the mounting opening. And a fixing assembly for fixing the dustproof cover is arranged in the storage box. The utility model has the advantages of protecting the calibration equipment, isolating the calibration equipment from the external environment, and preventing dust from accumulating to influence the performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical equipment and relates to an optical calibration device, in particular to an optical calibration device for testing a dark box. Background Art

[0002] At present, dark environment optical testing is generally carried out indoors, equipped with a dedicated optical darkroom with black walls and floors and closed on all sides. Optical instruments are a type of instrument that can generate light waves and display images, or receive light waves and analyze and determine their light properties. Optical instruments are a very important component category in the instrumentation industry. They are indispensable tools for observation, testing, analysis, control, recording and transmission in industrial and agricultural production, resource exploration, space exploration, scientific experiments, national defense construction and all areas of social life.

[0003] Existing optical instruments have no protection for the light source, that is, the light source is directly exposed to the environment. This structure makes the light source easily damaged, and dust easily accumulates on the light source, affecting the performance of the optical instrument. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems in the existing technology and propose an optical calibration device for testing darkrooms. The technical problem to be solved by this utility model is: how to protect the calibration equipment, isolate it from the external environment, and prevent dust accumulation from affecting performance.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] An optical calibration device for testing a dark box includes a storage box and a mounting circular plate rotatably connected to the storage box. A driving assembly for controlling the rotation of the mounting circular plate is provided in the storage box, and a calibration assembly is provided on the mounting circular plate. The storage box is provided with a mounting opening, a dust cover is detachably provided in the mounting opening, a fixing assembly for fixing the dust cover is provided in the storage box, and a storage slot is provided in the storage box, and a handle is rotatably connected to the storage slot.

[0007] The working principle of the utility model is that the calibration component in the box can be protected by the storage box, and the dust cover can be installed when detection and calibration are not needed to prevent external dust from affecting the calibration component and protect the calibration component from external collisions, and the driving component controls the installation circular plate to rotate, so that the calibration component can change its angle, thereby increasing the range of receiving the radiation light beam in the dark box, and the handle is convenient for people to carry, thereby improving the transportation efficiency, and making it convenient for people to place the utility model at the corresponding light measurement point, thereby improving the overall calibration efficiency and accuracy.

[0008] An observation opening is provided on the dust cover, and transparent glass is fixed in the observation opening.

[0009] With the above structure, the transparent glass fixed at the observation opening allows personnel to observe the status of the internal calibration components in real time after the dust cover is installed, so that personnel can better understand the operating conditions of the internal components and facilitate equipment maintenance.

[0010] The driving assembly includes a driving motor fixedly connected in the storage box and an engaging gear ring fixed on the mounting circular plate. A driving gear is coaxially fixed to the output end of the driving motor, and the driving gear is engaged with the engaging gear ring.

[0011] With the above structure, the driving motor can be used to drive the driving gear to rotate. After the driving gear rotates, it will engage with the meshing gear ring to drive the entire mounting circular plate to rotate, thereby automatically driving the calibration component to change its angle and increasing the range of receiving the radiation beam in the darkroom.

[0012] The calibration component is a photoelectric detector fixed on the mounting circular plate.

[0013] By adopting the above structure, the characteristics of the photoelectric detector reflecting the amount of light can be used to correct the intensity of light, the diffusion of light beams, the spectral characteristics, etc.

[0014] The fixing assembly includes a pair of guide sliders slidably connected in the storage box, a pair of connecting plates fixed on the dust cover, and connecting holes opened on the two connecting plates. One end of the two guide sliders is respectively plugged into the corresponding connecting holes.

[0015] With the above structure, the guide slider can be matched with the buckle of the connecting hole to achieve fixed installation of the dust cover and the storage box. The dust cover can be installed when no inspection and calibration is required to prevent external dust from affecting the calibration components and protect the calibration components from external collisions.

[0016] A pair of embedded grooves are provided on the outside of the storage box, and an adjustment plate is rotatably connected to each of the two embedded grooves. Two transmission bevel gears are rotatably connected to the storage box, and the two transmission bevel gears are coaxially fixedly connected to the corresponding adjustment plates. A pair of transmission bevel gears are rotatably connected to the storage box, and the two transmission bevel gears are respectively meshed with the corresponding transmission bevel gears. A driving screw is coaxially fixed on the two transmission bevel gears, and the two driving screws are threadedly connected to the corresponding guide sliders.

[0017] By adopting the above structure, the expansion range of the guide slider can be achieved through the flipping action of the control plate, so that when the control plate is stored in the embedded groove, the guide slider will be snapped into the connecting hole to fix the storage box and the dust cover. After the control plate is flipped, it will drive the guide slider to retract, so that it will be out of the snapping state with the connecting block, and the dust cover can be removed. When the calibration component needs to be tested and calibrated, the dust cover will be removed to prevent affecting the calibration accuracy. When calibration is not required, the dust cover can be installed to protect the internal calibration component.

[0018] Compared with the existing technology, the optical calibration device for testing dark boxes has the following advantages:

[0019] 1. Use the storage box to protect the calibration components in the box, and install the dust cover when no detection and calibration is required to prevent external dust from affecting the calibration components and protect the calibration components from external collisions.

[0020] 2. The driving assembly controls the installation circular plate to rotate, so that the calibration assembly can change its angle, thereby increasing the range of receiving the radiation beam in the darkroom.

[0021] 3. The handle makes it easy for people to carry, improves transportation efficiency, and makes it convenient for people to place the utility model at the corresponding light measurement point, thereby improving the overall calibration efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 It is a structural diagram of the drive component in the utility model.

[0024] Figure 3 It is a structural diagram of the fixing component in the utility model.

[0025] In the figure, 1. Storage box; 2. Mounting circular plate; 3. Mounting opening; 4. Dust cover; 5. Storage slot; 6. Handle; 7. Observation opening; 8. Drive motor; 9. Engaging gear ring; 10. Drive gear; 11. Guide slider; 12. Connecting plate; 13. Connecting hole; 14. Embedded groove; 15. Adjustment plate; 16. Transmission bevel gear 1; 17. Transmission bevel gear 2; 18. Drive screw. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figure 1-Figure 3As shown, an optical calibration device for a test darkroom comprises a storage box 1, a mounting circular plate 2 rotatably connected inside the storage box 1, a driving assembly for controlling the rotation of the mounting circular plate 2 is provided inside the storage box 1, and a calibration assembly is provided on the mounting circular plate 2, a mounting opening 3 is provided on the storage box 1, a dust cover 4 is detachably provided in the mounting opening 3, a fixing assembly for fixing the dust cover 4 is provided in the storage box 1, and a storage slot 5 is provided on the storage box 1, and a handle 6 is rotatably connected inside the storage slot 5.

[0028] The storage box 1 can be used to protect the calibration components in the box, and the dust cover 4 can be installed when no detection and calibration is required to prevent external dust from affecting the calibration components and protect the calibration components from external collisions. The driving component controls the installation circular plate 2 to rotate, so that the angle of the calibration components can be changed, thereby increasing the range of receiving the radiation light beam in the darkroom. The handle 6 is used for easy carrying, thereby improving transportation efficiency, and making it convenient for personnel to place the utility model at the corresponding light measurement point, thereby improving overall calibration efficiency and accuracy.

[0029] An observation opening 7 is provided on the dust cover 4 , and a transparent glass is fixed in the observation opening 7 .

[0030] With the above structure, the transparent glass fixed at the observation opening 7 allows personnel to observe the status of the internal calibration components in real time after the dust cover 4 is installed, so that personnel can better understand the operating conditions of the internal components and facilitate equipment maintenance.

[0031] The driving assembly includes a driving motor 8 fixedly connected to the storage box 1 and an engaging ring gear 9 fixed on the mounting circular plate 2. A driving gear 10 is coaxially fixed to the output end of the driving motor 8, and the driving gear 10 is engaged with the engaging ring gear 9.

[0032] With the above structure, the driving motor 8 can be used to drive the driving gear 10 to rotate. After the driving gear 10 rotates, it will engage with the meshing gear ring 9 to drive the entire mounting circular plate 2 to rotate, thereby automatically driving the calibration component to change its angle, thereby increasing the range of receiving the radiation light beam in the darkroom.

[0033] The calibration component is a photoelectric detector fixed on the mounting circular plate 2.

[0034] By adopting the above structure, the characteristics of the photoelectric detector reflecting the amount of light can be used to correct the intensity of light, the diffusion of light beams, the spectral characteristics, etc.

[0035] The fixing assembly includes a pair of guide sliders 11 slidably connected in the storage box 1, a pair of connecting plates 12 fixed on the dust cover 4, and connecting holes 13 opened on the two connecting plates 12. One end of the two guide sliders 11 is respectively plugged into the corresponding connecting holes 13.

[0036] By adopting the above structure, the guide slider 11 can be matched with the buckle of the connecting hole 13 to achieve fixed installation of the dust cover 4 and the storage box 1. The dust cover 4 can be installed when no inspection and calibration is required to prevent external dust from affecting the calibration component and protect the calibration component from external collisions.

[0037] A pair of embedded grooves 14 are provided on the outside of the storage box 1, and an adjustment plate 15 is rotatably connected to the two embedded grooves 14. Two transmission bevel gears 16 are rotatably connected to the storage box 1, and the two transmission bevel gears 16 are coaxially fixedly connected to the corresponding adjustment plates 15. A pair of transmission bevel gears 2 17 are rotatably connected to the storage box 1, and the two transmission bevel gears 2 17 are respectively engaged with the corresponding transmission bevel gear 1 16, and a driving screw 18 is coaxially fixed on the two transmission bevel gears 2 17, and the two driving screws 18 are threadedly connected to the corresponding guide sliders 11.

[0038] By adopting the above structure, the expansion range of the guide slider 11 can be achieved through the flipping action of the control plate 15, so that when the control plate 15 is stored in the embedded groove 14, the guide slider 11 will be snapped into the connecting hole 13 to fix the storage box 1 and the dust cover 4. After the control plate 15 is flipped, it will drive the guide slider 11 to retract, so that it is out of the snapping state with the connecting block, and the dust cover 4 can be disassembled. Therefore, when the calibration component needs to be tested and calibrated, the dust cover 4 is removed to prevent affecting the calibration accuracy. When calibration is not required, the dust cover 4 can be installed to protect the internal calibration component.

[0039] The working principle of the present invention is as follows: the personnel places the main body of the present invention at the corresponding light measuring point through the handle 6, and then performs a flip-up action on the pair of control plates 15 on the storage box 1. At this time, the transmission bevel gear 2 17 will be driven by the flip-up rotation of the control plate 15, and the transmission bevel gear 2 17 will drive the transmission bevel gear 1 16 to rotate after the rotation, and the transmission bevel gear 1 16 will drive the corresponding driving screw 18 to rotate after the rotation, and the driving screw 18 pushes the guide slider 11 out of the buckled state with the connecting block through the threaded connection with the guide slider 11, so that the personnel can remove the dust cover 4 to perform the detection and calibration work normally. During the calibration process, the driving motor 8 drives the driving gear 10 to rotate, and after the driving gear 10 rotates, it will mesh with the meshing gear ring 9, driving the entire mounting circular plate 2 to rotate, thereby automatically driving the calibration component to change the angle, thereby improving the range of receiving the radiation light beam in the darkroom.

[0040] In summary, the calibration components in the box are protected by the storage box 1, and the dust cover 4 can be installed when no detection and calibration is required to prevent external dust from affecting the calibration components and protect the calibration components from external collisions. The driving component controls the installation circular plate 2 to rotate, so that the angle of the calibration component can be changed, thereby increasing the range of receiving the radiation light beam in the darkroom, and the handle 6 is used for convenience of carrying, thereby improving the transportation efficiency, and making it convenient for personnel to place the utility model at the corresponding light measurement point, thereby improving the overall calibration efficiency and accuracy.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. An optical calibration device for testing a dark box, comprising a storage box (1) and a mounting circular plate (2) rotatably connected to the storage box (1), characterized in that: The storage box (1) is provided with a driving assembly for controlling the rotation of the mounting circular plate (2), and a calibration assembly is provided on the mounting circular plate (2). The storage box (1) is provided with a mounting opening (3), a dust cover (4) is detachably provided in the mounting opening (3), a fixing assembly for fixing the dust cover (4) is provided in the storage box (1), and a storage slot (5) is provided on the storage box (1), and a handle (6) is rotatably connected in the storage slot (5).

2. The optical calibration device for a test dark box according to claim 1, characterized in that: An observation opening (7) is provided on the dust cover (4), and transparent glass is fixed in the observation opening (7).

3. The optical calibration device for a test dark box according to claim 1, characterized in that: The driving assembly comprises a driving motor (8) fixedly connected in the storage box (1) and a meshing gear ring (9) fixed on the mounting circular plate (2); a driving gear (10) is coaxially fixed to the output end of the driving motor (8), and the driving gear (10) meshes with the meshing gear ring (9).

4. The optical calibration device for a test dark box according to claim 1, characterized in that: The calibration component is a photoelectric detector fixed on the mounting circular plate (2).

5. The optical calibration device for a test dark box according to claim 1, characterized in that: The fixing assembly comprises a pair of guide sliders (11) slidably connected in the storage box (1), a pair of connecting plates (12) fixed on the dust cover (4), and connecting holes (13) provided on the two connecting plates (12); one end of the two guide sliders (11) is respectively engaged with the corresponding connecting holes (13).

6. The optical calibration device for a test dark box according to claim 5, characterized in that: The storage box (1) is provided with a pair of embedded grooves (14) on the outside, and the two embedded grooves (14) are both rotatably connected to a regulating plate (15). The storage box (1) is rotatably connected to two transmission bevel gears (16), and the two transmission bevel gears (16) are respectively coaxially fixedly connected to the corresponding regulating plate (15). The storage box (1) is rotatably connected to a pair of transmission bevel gears (17) on the inside, and the two transmission bevel gears (17) are respectively meshed with the corresponding transmission bevel gears (16). A driving screw (18) is coaxially fixed on the two transmission bevel gears (17), and the two driving screws (18) are threadedly connected to the corresponding guide slider (11).

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