Infrared automatic focusing device and system

Abstract

This invention discloses an infrared automatic focusing device and system, including a base shell, a focusing ring placed inside the base shell, and an adjustment mechanism between the focusing ring and the base shell. The adjustment mechanism includes a lifting assembly, which comprises two sets of mounting plates (first and second) arranged in a crisscross pattern. Each set of mounting plates has at least two symmetrically arranged plates, and each of the two mounting plates has an airbag installed inside. A lifting groove is formed on the bottom side of the focusing ring, and the top of the airbag is bonded to the top surface of the lifting groove. This designed adjustment mechanism greatly simplifies the number of mechanical structures used in existing infrared automatic focusing devices, thereby reducing production costs and manufacturing difficulty, and facilitating later maintenance. Furthermore, during focusing, power can be directly applied to the focusing ring, resulting in faster focusing speeds and overcoming the shortcomings of existing automatic focusing devices.

Description

Technical Field

[0001] This invention belongs to the field of automatic focusing technology, specifically relating to an infrared automatic focusing device and system. Background Technology

[0002] Existing automatic focusing devices generally use a drive motor to drive a transmission ring to rotate, which causes the focusing ring to extend and retract to adjust the focal length.

[0003] The patent CN209765136U discloses an infrared automatic focusing device. This patent achieves the function of rapid focusing through a multi-threaded method. However, the entire transmission structure has a large number of components and requires the mechanical kinetic energy to be transferred step by step to achieve adjustment. It cannot directly transfer the initial power to the component that needs to be adjusted. Therefore, there is still room for improvement in the adjustment speed. In addition, too many mechanical structures will also increase the overall cost and make later maintenance more difficult. Summary of the Invention

[0004] The purpose of this invention is to provide an infrared autofocus device and system to address the issues raised in the background art, namely, the limited room for improvement in the adjustment speed of existing infrared autofocus devices, as well as the high cost and maintenance difficulties of existing infrared autofocus devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an infrared automatic focusing device, comprising a base shell, a focusing ring placed inside the base shell, and an adjustment mechanism disposed between the focusing ring and the base shell, the adjustment mechanism comprising:

[0006] The lifting assembly includes two sets of mounting plates 1 and 2 arranged in a crisscross pattern. Each set of mounting plates 1 has at least two symmetrically arranged plates, and airbags 1 are installed inside the two mounting plates 1. A lifting groove 1 is opened at the bottom side of the focusing ring. The top of the airbag 1 is bonded to the top surface of the lifting groove 1. An airbag 2 is installed on the inner side of the mounting plate 2. The surface of the focusing ring has symmetrically opened lifting grooves 2 for the mounting plates 2 to slide into. The top of the airbag 2 is bonded to the inner top surface of the lifting groove 2.

[0007] The limiting component includes a second magnetic ring disposed inside the opening of the bottom shell, and a first magnetic ring is also sleeved on the surface of the focusing ring. The second magnetic ring and the first magnetic ring are attracted to each other by opposite polarities.

[0008] As a preferred technical solution of the present invention, the surface of the focusing ring is provided with a ring groove, and the magnetic ring is inserted into the inner side of the ring groove. The magnetic ring is a two-semi-circular structure, and the surface of the magnetic ring is coated with glue.

[0009] In a preferred embodiment of the present invention, the depth of the second lifting groove is greater than the depth of the annular groove, and the second lifting groove and the annular groove are in communication.

[0010] As a preferred technical solution of the present invention, a miniature cylinder is also installed inside the bottom shell, and an air pipe is installed on the air outlet end of the miniature cylinder. Both the mounting plate one and the mounting plate two are provided with connecting through holes, and the air pipe passes through the connecting through holes and connects to the bottom ends of the airbag one and the airbag two.

[0011] As a preferred technical solution of the present invention, both the connecting through hole and the inner side of the mounting plate two are provided with mounting grooves, and a limiting ring is installed on the inner side of the mounting groove. The limiting ring is sleeved on the outside of the airbag one and the airbag two.

[0012] As a preferred technical solution of the present invention, the inner surface of the second magnetic ring is seamlessly fitted with the outer surface of the focusing ring, and the travel range of the first magnetic ring is located in the inner region of the second magnetic ring.

[0013] The present invention also discloses an infrared automatic focusing system, including an infrared automatic device and an intelligent selection module built into the camera. The output terminal of the intelligent selection module is connected to an automatic focusing module for adjusting the image sharpness. The automatic focusing module is electrically connected to a start module, which is connected to the miniature cylinder.

[0014] As a preferred technical solution of the present invention, the intelligent selection module includes an identification module for recognizing information in the image, and a preferred selection module for classifying information according to the identified information.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The designed adjustment mechanism greatly simplifies the number of mechanical structures used in existing infrared autofocus devices, thereby reducing production costs and manufacturing difficulties, and facilitating later maintenance. At the same time, during focusing, the power can be directly applied to the focusing ring, making the focusing speed faster and overcoming the shortcomings of existing autofocus devices in use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is an enlarged schematic diagram of the connection area between the focusing ring and the mounting plate of the present invention;

[0019] Figure 3 This is a front view of the focusing ring of the present invention;

[0020] Figure 4This is a system diagram of the present invention.

[0021] In the diagram: 1. Focusing ring; 2. Magnetic ring one; 3. Magnetic ring two; 4. Miniature cylinder; 5. Mounting plate one; 6. Airbag one; 7. Connecting through hole; 8. Mounting plate two; 9. Bottom shell; 10. Airbag two; 11. Mounting groove; 12. Limiting ring; 13. Lifting groove one; 14. Ring groove; 15. Lifting groove two; 16. Air pipe. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 4 The present invention provides a technical solution: an infrared automatic focusing device, including a base shell 9, a focusing ring 1 for realizing the focusing function is placed inside the base shell 9, and an adjustment mechanism is provided between the focusing ring 1 and the base shell 9, the adjustment mechanism including:

[0024] The lifting assembly includes two sets of mounting plates 5 and 8 arranged in a crisscross pattern. Each set of mounting plates 5 has at least two symmetrically arranged plates, and each mounting plate 5 houses an airbag 6. A lifting groove 13 is formed on the bottom side of the focusing ring 1. The top of the airbag 6 is bonded to the top surface of the lifting groove 13 using adhesive. When focusing is required, gas is injected into the airbag 6 through a micro-cylinder 4, causing the airbag 6 to expand and unfold, thus lifting the focusing ring 1. The airbag 10 is installed on the inner side of the mounting plate 28. The surface of the focusing ring 1 is symmetrically provided with lifting grooves 25 for the mounting plate 28 to slide into. The top of the airbag 210 is also glued to the inner top surface of the lifting groove 215 by applying glue. When the height required for focusing is high and greater than the adjustable range of the airbag 16, the airbag 210 can be pushed against the lifting groove 215 to lift the focusing ring 1 outward to achieve focusing.

[0025] The limiting component includes a magnetic ring 2 3 disposed inside the opening of the bottom shell 9, and a magnetic ring 1 2 also sleeved on the surface of the focusing ring 1. The magnetic ring 2 3 and the magnetic ring 1 2 are connected by attraction of opposite polarities. When the focusing ring 1 moves up and down inside the bottom shell 9, the opposite polarities of the magnetic ring 1 2 and the magnetic ring 2 3 can ensure that the focusing ring 1 will not detach from the inside of the bottom shell 9.

[0026] In this embodiment, the surface of the focusing ring 1 is provided with an annular groove 14, and the magnetic ring 2 is inserted into the inner side of the annular groove 14 to complete the installation. The magnetic ring 2 has two semi-circular structures, which facilitates the installation. At the same time, during the installation, the surface of the magnetic ring 2 is coated with adhesive to increase the bonding stability.

[0027] In this embodiment, the depth of the lifting groove 15 is greater than the depth of the annular groove 14, and the lifting groove 15 and the annular groove 14 are connected, thereby ensuring the installation of the magnetic ring 2 and not affecting the installation of the mounting plate 8 and the lifting and lowering of the airbag 10.

[0028] In this embodiment, a miniature cylinder 4 is also installed inside the bottom shell 9. An air pipe 16 is installed on the air outlet end of the miniature cylinder 4. Both the mounting plate 1 5 and the mounting plate 2 8 are provided with connecting through holes 7. The air pipe 16 passes through the connecting through holes 7 and connects to the bottom ends of the airbag 1 6 and the airbag 2 10, thereby providing gas supply and causing the airbag 1 6 and the airbag 2 10 to bulge and unfold.

[0029] In this embodiment, mounting grooves 11 are provided on the inner sides of both the connecting through hole 7 and the mounting plate 2 8. A limiting ring 12 is installed on the inner side of the mounting groove 11. The limiting ring 12 is sleeved on the outside of the airbag 1 6 and the airbag 2 10. When the airbag 1 6 and the airbag 2 10 are rising and falling, they can be limited by the limiting ring 12 to prevent the airbag 1 6 and the airbag 2 10 from separating from the mounting plate 1 5 and the mounting plate 2 8 respectively.

[0030] In this embodiment, the inner surface of the magnetic ring 2 3 is seamlessly attached to the outer surface of the focusing ring 1 to avoid wobbling caused by gaps. The travel range of the magnetic ring 1 2 is within the inner region of the magnetic ring 2 3, ensuring that the focusing ring 1 and the bottom shell 9 are always in a magnetically attached state during movement.

[0031] Reference Figure 4 The present invention also discloses an infrared autofocus system, including an infrared autofocus device and an intelligent selection module built into the camera. The output end of the intelligent selection module is connected to an autofocus module for adjusting the image clarity. The autofocus module is powered on and connected to a start module, which is connected to a micro cylinder 4. During focusing, the autofocus module transmits information to the start module, and the height of the focusing ring 1 is adjusted by the micro cylinder 4.

[0032] In this embodiment, the intelligent selection module includes an identification module for recognizing information in the image, and a preferred selection module for classifying information according to the identified information, such as prioritizing the focus on people when there are people and animals in the image.

[0033] Although embodiments of the invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An infrared automatic focusing device, comprising a base shell (9), wherein a focusing ring (1) is disposed inside the base shell (9), characterized in that: An adjustment mechanism is provided between the focusing ring (1) and the bottom shell (9), the adjustment mechanism including: The lifting assembly includes two sets of mounting plates 1 (5) and 2 (8) arranged in a cross-sectional manner. Each set of mounting plates 1 (5) has at least two symmetrically arranged, and airbags 1 (6) are installed inside the two mounting plates 1 (5). The bottom side of the focusing ring (1) is provided with a lifting groove 1 (13). The top of the airbag 1 (6) is bonded to the top surface of the lifting groove 1 (13). Airbags 2 (10) are installed on the inner side of the mounting plate 2 (8). The surface of the focusing ring (1) is symmetrically provided with lifting grooves 2 (15) for the mounting plate 2 (8) to slide into. The top of the airbags 2 (10) is bonded to the inner top surface of the lifting groove 2 (15). The limiting component includes a second magnetic ring (3) disposed inside the opening of the bottom shell (9), and a first magnetic ring (2) is also sleeved on the surface of the focusing ring (1). The second magnetic ring (3) and the first magnetic ring (2) are attracted to each other by opposite polarities. The focusing ring (1) has a groove (14) on its surface. The magnetic ring (2) is inserted into the inner side of the groove (14). The magnetic ring (2) has two semi-circular structures and the surface of the magnetic ring (2) is coated with glue. The depth of the second lifting groove (15) is greater than the depth of the annular groove (14), and the second lifting groove (15) and the annular groove (14) are connected. The bottom shell (9) is also equipped with a miniature cylinder (4). An air pipe (16) is installed on the air outlet end of the miniature cylinder (4). Both the mounting plate one (5) and the mounting plate two (8) are provided with connecting through holes (7). The air pipe (16) passes through the connecting through holes (7) and connects to the bottom ends of the airbag one (6) and the airbag two (10). The connecting through hole (7) and the inner side of the mounting plate (8) are both provided with mounting grooves (11), and a limiting ring (12) is installed on the inner side of the mounting groove (11). The limiting ring (12) is sleeved on the outside of the airbag (6) and the airbag (10). The inner surface of the second magnetic ring (3) is seamlessly attached to the outer surface of the focusing ring (1), and the travel range of the first magnetic ring (2) is located in the inner region of the second magnetic ring (3).

2. An infrared autofocus system, comprising the infrared autofocus device as described in claim 1, characterized in that: It also includes a smart selection module built into the camera, the output of which is connected to an autofocus module for adjusting the image clarity. The autofocus module is powered on and connected to a start module, which is connected to the micro cylinder (4).

3. The infrared automatic focusing system according to claim 2, characterized in that: The intelligent selection module includes an identification module for recognizing information in the image, and a preferred selection module for classifying information according to the identified information.

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