Dual-sensor astronomical camera

Abstract

The utility model provides a double-sensor astronomical camera which comprises a first sensor and a second sensor, the first sensor is used for shooting images, and the second sensor is used for guiding stars. The camera structure comprises a cooling fin and a refrigerator, one side of the refrigerator is in contact with a circuit board of the first sensor through a silica gel pad, the other side of the refrigerator is in contact with the cooling fin, and effective heat dissipation and shock absorption are ensured. The fixing part comprises an upper panel and a side plate, and the fan is fixed on the upper panel through a soft rubber nail, so that vibration during working is reduced. The vertical position of the second sensor is adjusted through the adjusting structure, the adjusting structure comprises a lower sliding block and an upper sliding block, the upper sliding block moves along the inclined plane of the lower sliding block through rotation of the adjusting screw rod, accurate adjustment of the relative position of the second sensor and the first sensor is achieved, and photosensitive components of the two sensors are located on the same focal plane. And the focal length and the imaging effect are optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of cameras, in particular to a dual-sensor astronomical camera. Background Art

[0002] Astronomical deep-sky photography requires two cameras, one for guiding and tracking the target celestial body, and one for photographing the target celestial body. The planetary camera is used for guiding, and the cooling camera is used for photographing the target. In the existing field of astronomical photography, deep-sky photography requires two cameras to complete this task. Its disadvantage is that two independent cameras are required, and a guiding device is also required. The connection cables of the equipment are increased during use, which is particularly inconvenient in the overall installation of the camera. At the same time, since the telescope is to be rotated on the equatorial mount, it is easy for the cables to be connected and wrapped around the equatorial mount during the shooting process, causing damage to the equipment. In addition, during long-term astronomical observations, due to the lack of guiding function, tracking errors are prone to occur, resulting in blurred images.

[0003] In order to overcome the above problems, a dual-sensor camera is provided in the prior art. The structure of the dual sensor is disclosed in the utility model with the announcement number CN215379068U and the name of a dual-sensor camera. The dual-sensor camera usually includes a main sensor for capturing celestial body images and another sensor for guiding stars, thereby ensuring that the camera can maintain stable tracking during long exposure and obtain clearer astronomical images. By integrating the guiding star sensor and the shooting sensor in the same connector, the equipment cost and operation complexity are reduced, and the portability and ease of installation of the camera are improved. The design includes a sealing cover for protecting the internal circuit board and sensor, and a glass plate is provided above the guiding star sensor to optimize the optical path and imaging effect. The camera is also equipped with a refrigerator and a cooling fan. Through an effective heat dissipation design, the sensor is ensured to work in a low temperature environment, reduce noise, and improve image quality. The adjustment structure can accurately adjust the position of the sensor through a limit slide rod and a motor, so that the camera can achieve better focal length adjustment and imaging clarity.

[0004] Although the dual-sensor cameras in the prior art have made progress in many aspects, there are still some problems that need to be solved. First, the fan vibration will interfere with the sensor, especially during long exposure, resulting in blurred images and affecting the imaging quality. Therefore, effective measures must be taken to reduce the impact of fan vibration on the sensor. Secondly, the environmental control in the sealed cavity housing needs to be improved, especially filling with dry gas to prevent moisture and condensation from affecting sensor performance and image quality. Although the refrigerator is used to control the sensor temperature, its effect in combination with dry gas in the sealed cavity has not been fully considered. Effective temperature control combined with dry gas can significantly improve image quality and reduce noise. In addition, although the existing adjustment structure can adjust the sensor position, its accuracy and ease of operation need to be improved, especially the relative position adjustment of the first sensor and the second sensor requires a more precise and stable mechanism to ensure the best focal length and imaging effect. Finally, although the existing heat dissipation design is effective, insufficient heat dissipation may still occur during long-term operation. Therefore, further optimizing the heat dissipation structure to ensure the stable operation of the sensor in various working environments is the key to improving camera performance. By solving these problems, the high-precision requirements of astronomical deep-space photography can be better met. Utility Model Content

[0005] The purpose of the utility model is to provide a dual-sensor astronomical camera to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A dual-sensor astronomical camera, comprising a first sensor for capturing images and a second sensor for guiding stars, further comprising,

[0008] a heat sink, the heat sink being disposed on one side of the first sensor and the second sensor;

[0009] A fixing member is installed on the outer side of the heat sink, and the fixing member includes an upper panel, and the fan is fixed on the upper panel.

[0010] Preferably, the fan is fixed to the upper panel by means of soft glue nails; and a circuit board is fixed to the side panels on one side or both sides of the upper panel.

[0011] Preferably, the first sensor is provided with a dust cover.

[0012] Preferably, a refrigerator is further included, one side of the refrigerator is used to provide cooling for the first sensor, and the other side of the refrigerator is in contact with the heat sink.

[0013] Preferably, the first sensor is disposed in a sealed cavity housing.

[0014] Furthermore, the second sensor adjusts the upper and lower positions of the second sensor through the adjustment structure;

[0015] The regulating structure comprises:

[0016] A lower slider having a first inclined surface and an upper slider having a second inclined surface, wherein the lower slider is threadedly connected to one end of an adjusting screw, and the adjusting screw pushes the lower slider to move so that the upper slider passively moves along the first inclined surface of the lower slider through the second inclined surface;

[0017] The second sensor is arranged on the second plate body, and two ends of the second plate body are connected to the upper slider through guide columns.

[0018] Preferably, a window sheet is provided on the sealed cavity housing, and a heating sheet is provided on the window sheet.

[0019] Preferably, the refrigerator is in contact with the first sensor via a heat conductive material.

[0020] Preferably, the sealing chamber housing is provided with a notch, a flange sleeve for fixing the adjusting screw is provided in the notch, the other end of the adjusting screw is connected to the adjusting hand wheel, and a sealing ring is provided at the notch position.

[0021] Preferably, the sealing chamber housing is fastened to the plane ring.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] First, the utility model uses a design that fixes the fan on the upper panel through a fixing piece and a soft glue nail, which effectively reduces the vibration generated when the fan is working. This design significantly reduces the interference of vibration on the first sensor and the second sensor when taking images, ensures the stability and clarity of the image during long-term exposure, and improves the overall imaging quality. Secondly, the heat sink is set on one side of the first sensor and the second sensor, and the contact design between the refrigerator and the heat sink ensures the effective heat dissipation of the sensor when working. One side of the refrigerator is used to provide cooling for the first sensor, and the other side is in contact with the heat sink, which further improves the heat dissipation efficiency, ensures that the sensor works in a low-temperature environment, reduces the influence of thermal noise, and thus improves the image quality. In addition, the utility model is arranged in a sealed cavity shell in the first sensor, and a window sheet and a heating sheet are arranged on the sealed cavity shell, and dry gas is filled at the same time. This design prevents the influence of moisture and condensation on the sensor performance and image quality, ensures that the sensor works stably in a dry and low-temperature environment, and improves the image generation quality. Secondly, the second sensor adjusts the upper and lower positions through an adjustment structure, including a lower slider with a first inclined surface and an upper slider with a second inclined surface, and the lower slider is pushed to move by an adjustment screw, so that the upper slider moves along the first inclined surface of the lower slider. The second sensor is arranged on the second plate body, and the second plate body is connected to the upper slider through a guide column. This precise adjustment mechanism ensures that the relative position of the first sensor and the second sensor can be accurately adjusted as needed, optimizing the focal length and imaging effect. At the same time, the utility model is provided with a dust cover on the first sensor to avoid the influence of environmental dust on the sensor, further improving the clarity and quality of the image. The dustproof design is combined with the sealed cavity shell, double protection, ensuring that the sensor can maintain the best working state in various environments. In addition, the sealed cavity shell is provided with a notch, and a flange sleeve for fixing the adjustment screw is provided in the notch. The other end of the adjustment screw is connected to the adjustment hand wheel, and a sealing ring is provided at the notch position. This design ensures the stability and sealing of the adjustment mechanism and further improves the reliability of the equipment. Finally, the sealed cavity shell and the plane ring are fastened to ensure the stability and reliability of the entire structure, further improving the service life of the camera in different working environments. Through the combination of the above technical features, the utility model has been significantly improved in heat dissipation, dustproof, stability and sensor position adjustment, effectively improving the overall performance of the dual-sensor astronomical camera, and is suitable for higher-precision astronomical observation tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0025] Figure 2 for Figure 1 Top view of the .

[0026] Figure 3It is a structural schematic diagram of the fixing member of the utility model.

[0027] Figure 4 It is a structural schematic diagram of a fan of the utility model being arranged on a fixing member.

[0028] Figure 5 It is a schematic diagram of the heat sink and fixing structure of the utility model.

[0029] Figure 6 It is a schematic diagram of the connection between the control panel and the fixing member of the utility model.

[0030] Figure 7 for Figure 1 sectional view of .

[0031] Figure 8 It is a schematic diagram of the internal structure of the utility model.

[0032] In the figure: 1- sleeve 2- sealing chamber housing 3- sealing cover 4- plane ring 5- back cover 6- WIFI antenna 7- radiator 8- hand wheel 9- window piece 10- pressure plate 11- hexagonal screw 12- screw 13- copper column 14- soft flat cable 1 15- soft flat cable 2 16- pressure block 17- fan 18- fixing part 19- cross screw 20- control board 1 21- control board 2 22- support column 23- speaker 24- soft rubber nail 25- soft flat cable 3 26- focusing screw 27- lower slider 28- refrigerator 29- upper slider 30- second sensor 31- first sensor 32- dust cover 33- heating plate. DETAILED DESCRIPTION

[0033] 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 only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0036] See also Figure 1-Figure 8 As shown, Figure 1 and Figure 2 As shown, it includes a sleeve 1, a sealed cavity housing 2 is arranged at the bottom of the sleeve 1, a sealing cover 3 is arranged on the sleeve 1, a first sensor 31 and a second sensor 30 are arranged inside the sleeve 1, a window sheet 9 is arranged above the first sensor 30, and a heating sheet 33 is arranged on the window sheet 9. The back cover 5 is installed on the rear side of the sealed cavity housing 2 to protect the internal components and provide additional structural support. The WIFI antenna 6 is used for wireless data transmission, which facilitates communication and data exchange between the camera and external devices. The main function of the sealed cavity housing 2 is to provide a closed working environment for the first sensor 31 and the second sensor 30, prevent moisture and dust in the external environment from entering the interior of the housing, protect the sensor from moisture and dust, and ensure the long-term stable operation of the sensor. In addition, the sealed cavity housing 2 is filled with dry gas to further prevent moisture condensation, especially when long-term exposure is performed in a low temperature environment, to prevent condensation on the surface of the sensor, thereby ensuring the normal operation of the sensor and the stability of the image quality. The sealed cavity housing 2 provides a sturdy shell to protect the internal sensor and circuit board from external physical shock and vibration, thereby improving the durability and reliability of the device. The main function of the heating plate 33 on the window plate 9 is to prevent condensation on the surface of the window plate and ensure that the sensor captures a clear image. In a cold or humid environment, the surface of the window plate is prone to condensation due to the low temperature, which will affect the optical path and make the captured image blurred. The heating plate 33 heats the window plate to keep its surface temperature higher than the dew point, thereby effectively preventing condensation and ensuring the clarity of the optical path. The heating plate 33 keeps the temperature of the window plate 9 stable, so that the sensor can capture high-quality images under various environmental conditions without being affected by changes in external temperature and humidity. By preventing condensation, the heating plate 33 reduces the degradation of the optical performance of the window plate caused by moisture condensation, extends the service life of the equipment, and improves the reliability and stability of the equipment in harsh environments. The sealed cavity housing 2 and the heating plate 33 on the window plate 9 work together to ensure that the dual-sensor astronomical camera can work stably in various complex environments and capture high-quality astronomical images.

[0037] like Figure 3 and Figure 4As shown, the fixing member 18 includes an upper panel and two side panels, and the upper panel and the two side panels are connected by screws to form a stable structure. A hollow structure is provided on the upper panel for installing the fan 17. The fan 17 is fixed to the upper panel by soft glue nails 24. This design allows a certain elastic space between the fan and the fixing member. Specifically, the hollow structure on the upper panel provides enough space for the installation of the fan 17, so that the fan can be embedded in the hollow part. The elastic characteristics of the soft glue nails 24 effectively absorb and buffer the vibration generated by the fan when it is working. The fan 17 will generate a certain vibration when it is working. It is directly fixed on the fixing member 18. By using the soft glue nails 24, the fan 17 is connected to the upper panel of the fixing member 18. This flexible connection method can significantly reduce vibration conduction. The elastic material of the soft glue nails 24 can absorb the vibration energy of the fan when it is running, and convert most of the vibration energy into the movement of internal molecules, thereby reducing the vibration transmitted to the fixing member 18. This shock absorption principle ensures the stability and clarity of the sensor when shooting images, and avoids the degradation of image quality caused by fan vibration. Through this design, the utility model can maintain high quality and stability of the image during long-term exposure.

[0038] like Figure 5 As shown, the heat sink 7 is arranged on one side of the first sensor 31 and the second sensor 30, and effectively dissipates heat by increasing the heat dissipation area. One side of the refrigerator 28 contacts the first plate body carrying the first sensor through the silicone pad to provide cooling for the first sensor 31. The other side of the refrigerator 28 contacts the heat sink 7, and the heat is effectively dissipated through the heat sink 7, thereby improving the heat dissipation efficiency, ensuring that the sensor works in a low temperature environment, reducing the impact of thermal noise, and further improving the image quality.

[0039] like Figure 6As shown, the control board 1 20 and the control board 2 21 are fixed on the side panels on one side or both sides of the upper panel, and are connected to other components through flexible flat cables 14, 15, and 25, ensuring the stability of the circuit board and the operation of the sensor. The control board 1 20 and the control board 2 21 are connected to other components through flexible flat cables 14 and 15, ensuring the stability and reliability of the circuit. In this way, not only the stability of the overall structure is improved, but also the effective connection and functional coordination between the components are guaranteed. Through this arrangement, the structure of the fixing member 18 is more compact, the circuit board is well fixed and protected, and it is conducive to the stable operation of the entire camera system. The pressing plate 10 and the hexagonal screw 11 are used to firmly fix the various components together to increase the overall structural strength and stability. The screw 12 is used to fix the various parts of the sealing cover 3 and the sealing chamber housing 2 to ensure the stability of the structure. The copper column 13 is used to support and isolate the circuit board to ensure the stability and safety of the circuit board in the housing. The flexible flat cable 14 and the flexible flat cable 2 15 are used to connect the control board and the sensor to ensure the stability and reliability of the signal transmission. The clamp 16 is used to fix the flexible flat cable to prevent it from moving or falling off. The cross screw 19 is used to fix the internal components and provide additional structural support. The support column 22 is used to support the internal components and increase the stability of the structure. The speaker 23 is used for audio output to provide voice prompts or other audio information. The flexible flat cable 25 is used to connect other internal components to ensure stable and reliable signal transmission.

[0040] like Figure 7As shown, the second sensor 30 adjusts its up and down position through the adjustment structure, thereby achieving relative position adjustment with the first sensor 31 for precise focusing. The adjustment structure includes a lower slider 27 having a first inclined surface and an upper slider 29 having a second inclined surface. The lower slider 27 is threadedly connected to one end of the adjustment screw 26. By rotating the adjustment screw 26, the lower slider 27 is pushed to move along the thread, so that the upper slider 29 passively moves along the first inclined surface of the lower slider 27. The second sensor 30 is fixed on the second plate body, and the two ends of the second plate body are connected to the upper slider 29 through guide columns. This connection method allows the second sensor 30 to be accurately adjusted up and down with the movement of the upper slider 29. This precise adjustment mechanism ensures that the relative position of the second sensor 30 and the first sensor 31 can be finely adjusted as needed, thereby achieving the purpose of the photosensitive components on the first sensor 31 and the second sensor 30 of the dual sensor being on the same focal plane. The position change of the lower slider 27 is controlled by the adjustment screw 26, and the upper slider 29 moves under the drive of the lower slider 27, thereby achieving the up and down position adjustment of the second sensor 30. This focusing mechanism ensures the synchronous operation of the two sensors, optimizes the focal length and imaging effect, and improves the image quality and observation accuracy. In addition, the sealed cavity housing 2 is provided with a notch 9, and a flange sleeve for fixing the adjusting screw 26 is provided in the notch 9. The other end of the adjusting screw 26 is connected to the adjusting hand wheel 8, and a sealing ring is provided at the notch 9. This design ensures the stability and sealing of the adjustment mechanism and further improves the reliability of the equipment. The design of the sealing ring prevents dust and moisture in the external environment from entering the cavity, thereby protecting the normal operation of the sensor and the adjustment mechanism. The sealed cavity housing 2 and the plane ring 4 are fastened to ensure the stability and reliability of the entire structure, and further improve the service life of the camera in different working environments. The design of the fastening connection provides a solid mechanical support, so that the camera can remain stable during operation to avoid affecting the imaging quality due to vibration or impact.

[0041] One side of the refrigerator 28 contacts the circuit board of the first sensor 31 through a silicone pad, and is used to provide cooling for the first sensor 31. The other side of the refrigerator 28 contacts the heat sink 7, and the heat is effectively dissipated through the heat sink 7, thereby improving the heat dissipation efficiency, ensuring that the sensor works in a low temperature environment, reducing the impact of thermal noise, and further improving the image quality.

[0042] like Figure 8As shown, in the internal structure of the utility model, the first sensor 31 is provided with a dust cover 32, which avoids the influence of environmental dust on the sensor and further improves the clarity and quality of the image. The sealed cavity housing 2 is filled with dry gas to prevent moisture and condensation from affecting the sensor performance and image quality, ensuring that the sensor works stably in a dry, low-temperature environment. The main function of the dust cover 32 is to protect the first sensor 31 from the influence of dust and particulate matter in the environment, thereby ensuring the normal operation of the sensor and improving the clarity and quality of the image. Specifically, the functions of the dust cover 32 are as follows:

[0043] Prevent dust accumulation: The dust cover 32 effectively blocks dust and particles from the external environment from entering the sensor surface, preventing dust from accumulating on the sensor surface. Dust accumulation will cause the sensor to image unclearly and affect the image quality. The dust cover 32 can keep the sensor surface clean and ensure that the captured image is clear and flawless.

[0044] Protecting the sensor: The dust cover 32 serves as a protective barrier for the first sensor 31, protecting the sensor from external physical damage, such as accidental impact or scratching, so as to extend the service life of the sensor and ensure its long-term stable operation.

[0045] Maintaining optical performance: The cleanliness of the sensor surface directly affects its optical performance. The dust cover 32 ensures that the sensor surface is free of dust and impurities, allowing the sensor to capture light in the best condition and thus produce high-quality images. Any dust or impurities will affect the propagation path of light and cause image quality to deteriorate.

[0046] Sealed environment: The dust cover 32 and the sealed chamber housing 2 work together to form a relatively sealed environment, further preventing external pollutants from entering the sensor area. The sealed chamber housing 2 is filled with dry gas to prevent moisture and condensation from affecting sensor performance and image quality, ensuring that the sensor works stably in a dry, low-temperature environment.

[0047] In summary, the utility model effectively reduces the vibration generated by the fan when it is working by fixing the fan on the upper panel with fixing parts and soft glue nails; the heat sink is set on one side of the first sensor and the second sensor, and the contact design between the refrigerator and the heat sink ensures the effective heat dissipation of the sensor when it is working; the first sensor is set in a sealed cavity shell, and a window plate and a heating plate are set on the sealed cavity shell, and dry gas is filled at the same time to prevent moisture and condensation from affecting the sensor performance and image quality. Through the precise design and coordinated work of each component, high-quality and stable astronomical image shooting is achieved. The second sensor is precisely adjusted by the adjustment structure, so that the photosensitive components of the first sensor and the second sensor are on the same focal plane. The overall structural design ensures that the utility model has been significantly improved in heat dissipation, dustproof, stability and sensor position adjustment, effectively improving the overall performance of the dual-sensor astronomical camera, and is suitable for higher-precision astronomical observation tasks. The above shows and describes the basic principles, main features and advantages of the utility model.

[0048] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dual-sensor astronomical camera, comprising a first sensor for capturing images and a second sensor for guiding stars, characterized in that: Also includes, a heat sink, the heat sink being disposed on one side of the first sensor and the second sensor; A fixing member is installed on the outer side of the heat sink, and the fixing member includes an upper panel, and the fan is fixed on the upper panel.

2. A dual-sensor astronomical camera according to claim 1, characterized in that: The fan is fixed on the upper panel by means of soft glue nails; and a circuit board is fixed on the side panels on one side or both sides of the upper panel.

3. The dual-sensor astronomical camera according to claim 1, characterized in that: The first sensor is provided with a dust cover.

4. The dual-sensor astronomical camera according to claim 1, characterized in that: A cooler is also included, one side of which is used to provide cooling for the first sensor, and the other side of which is in contact with the heat sink.

5. A dual-sensor astronomical camera according to claim 4, characterized in that: The first sensor is arranged in the sealed cavity housing.

6. A dual-sensor astronomical camera according to claim 5, characterized in that: The second sensor adjusts the upper and lower positions of the second sensor through the adjustment structure; The regulating structure comprises: A lower slider having a first inclined surface and an upper slider having a second inclined surface, wherein the lower slider is threadedly connected to one end of an adjusting screw, and the adjusting screw pushes the lower slider to move so that the upper slider passively moves along the first inclined surface of the lower slider through the second inclined surface; The second sensor is arranged on the second plate body, and two ends of the second plate body are connected to the upper slider through guide columns.

7. The dual-sensor astronomical camera according to claim 5, characterized in that: A window sheet is arranged on the sealed cavity housing, and a heating sheet is arranged on the window sheet.

8. The dual-sensor astronomical camera according to claim 5, characterized in that: The refrigerator is in contact with the first sensor through a heat conductive material.

9. The dual-sensor astronomical camera according to claim 5, characterized in that: The sealing cavity housing is provided with a notch, a flange sleeve for fixing the adjusting screw is provided in the notch, the other end of the adjusting screw is connected to the adjusting hand wheel, and a sealing ring is provided at the notch position.

10. The dual-sensor astronomical camera according to claim 5, characterized in that: The sealing chamber housing is connected to the plane ring by fastening.

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