Optical lens set for camera

Abstract

The present invention discloses an optical lens group for video recording, belonging to the technical field of optical lenses, including an optical built-in lens provided with an optical lens and an aperture, the optical built-in lens is provided with a combined telescopic lens barrel, the combined telescopic lens barrel is composed of a telescopic inner barrel and a protective outer barrel, the protective outer barrel includes an outer cover body connected to a clamping combination end, an arc-shaped drainage cover is provided at the end of the outer cover body, a control knob is provided on the outer cover body, a drying plugging plate is detachably installed on the control knob, a wind-blocking isolation ring is installed inside the control knob, and a magnetic repulsion module and a heating module are provided on the wind-blocking isolation ring. The present invention forms two chambers by providing a wind-blocking isolation ring inside the protective outer barrel, and a micro fan is provided outside the wind-blocking isolation ring to realize the circulation of the internal airflow. During the circulation process, the desiccant in the detachably installed and fixed drying plugging plate is fully absorbed to ensure the dryness of the internal environment of the optical lens and the safety of components.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lenses, and in particular to an optical lens group for photographing. Background Art

[0002] The camera lens is a very important component in photography, which affects the image quality. Different types of lenses can be selected according to different needs and usage scenarios;

[0003] If the lens is used outdoors in winter and then brought indoors, some water mist will be found inside the lens. The same situation will also occur in an environment with a large temperature difference. The mist outside the lens can be removed by wiping, but due to the telescopic and structural characteristics of the lens, water vapor can easily enter the interior through the gaps between the combined lenses. If the mist entering the interior is not handled in time, the mist will adhere to the internal lens. The coating on the lens can optimize the optical effect, but the coating is an organic matter, which is conducive to the growth of mold. The mold spores in the air fall on it and multiply in a humid environment, eventually causing the lens to become moldy and damaged. Based on this, it is necessary to remove the water vapor in the lens in time. Due to the precision of the optical lens, it is impossible for ordinary people to remove it, and it requires professionals to operate. For this reason, an optical lens group for video is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose an optical lens group for camera use.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An optical lens group for video recording, comprising an optical built-in lens provided with an optical lens and an aperture, wherein a combined telescopic lens barrel is provided outside the optical built-in lens, and two ends of the combined telescopic lens barrel are respectively connected with a viewfinder end and a clamping combined end;

[0007] The combined telescopic lens barrel is composed of a telescopic inner barrel and a protective outer barrel, the protective outer barrel includes an outer cover body connected to the clamping combination end, the end of the outer cover body is provided with an arc-shaped drainage cover that is gathered inward, the outer cover body is provided with a control knob, the control knob is detachably provided with a dry cutting board, the control knob is internally provided with a wind-blocking isolation ring, and the wind-blocking isolation ring is provided with a magnetic repulsion module and a heating module;

[0008] The inner wall of the telescopic inner cylinder is provided with a plurality of vents opened by the magnetic repulsion module, the inner wall of the vent is provided with a magnetically controlled air valve, the optical built-in lens is provided with corresponding air holes adapted to the positions of the vents, and the corresponding air holes are provided with sealing air films;

[0009] A starter motor is arranged on the clamping assembly end, and the starter motor is connected to a plurality of micro fans via a driving ring.

[0010] Preferably, the viewing end is connected to the telescopic inner cylinder, the snap-fit ​​combination end is connected to the protective outer cylinder, the viewing end is provided with a magnetic pressure layer adapted to the arc-shaped drainage cover, and the inner side wall of the arc-shaped drainage cover is provided with a sealing layer that contacts the telescopic inner cylinder.

[0011] Preferably, the control knob comprises a rotating seat rotatably arranged on the protective outer cylinder, the rotating seat is provided with a cutting port adapted to the dry cutting plate, and a locking cover is slidably arranged on the rotating seat via a slot.

[0012] Preferably, the magnetically controlled gas valve comprises a main valve body, an outer side wall of the main valve body is fixedly connected with a reset ring, and the reset ring is connected to the inner wall of the telescopic inner cylinder via a reset sleeve spring sleeved on the main valve body.

[0013] Preferably, the main valve body is provided with an inner valve opening, the inner side wall of the inner valve opening is provided with a plurality of air inlets, the inner side wall of the air opening is provided with an annular air port, and the end of the main valve body is provided with a resistance frame for squeezing a sealing air film.

[0014] Preferably, the magnetic repulsion module includes a plurality of equally divided magnetic strips evenly arranged on the inner wall of the wind-blocking isolation ring, a magnetic repulsion seat is arranged at the end of the main valve body, the magnetic repulsion seat and the equally divided magnetic strips are magnetically repelled, and the heating module includes a resistance heating layer arranged in the wind-blocking isolation ring.

[0015] Preferably, a transmission annular cavity is opened in the snap-fit ​​combination end, the drive ring is in the transmission annular cavity, the output end of the starter motor is fixedly connected to a drive gear meshing with the drive ring, the drive ring is meshingly connected to a plurality of rotating gears, the rotating gears extend outward through a rotating shaft and are connected to the micro fan.

[0016] Preferably, the telescopic inner cylinder and the protective outer cylinder are connected by a driving mechanism to achieve telescopic movement between the two.

[0017] Preferably, the snap-in assembly end is internally provided with an energy storage battery and externally provided with a photovoltaic charging ring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention is designed to solve the problem that the humid environment inside the current optical lens group cannot be handled. An air-blocking isolation ring is provided inside the protective outer cylinder to form two chambers, and a micro fan is provided outside the air-blocking isolation ring to realize the circulation of the internal airflow. During the circulation process, the desiccant in the detachably mounted and fixed drying plug board is used to fully absorb the moisture, so as to ensure the dryness of the internal environment of the optical lens and the safety of the components.

[0020] 2. The present invention ensures the flow of air by arranging air vents on the telescopic inner cylinder and corresponding air holes on the optical built-in lens. When no drying process is performed, the air vents can be automatically and effectively sealed by a magnetically controlled air valve, thereby effectively avoiding dust from entering the interior during use and ensuring the normal use of the optical lens group. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the assembly structure of an optical lens assembly for photography proposed by the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 4 A schematic diagram of the three-dimensional structure of an optical lens assembly for photographing proposed by the present invention;

[0025] Figure 5 This is a schematic diagram of the main cross-sectional structure of an optical lens assembly for photographing proposed by the present invention;

[0026] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0027] Figure 7 The present invention is a schematic diagram of the cross-sectional structure of a main valve body in an optical lens assembly for photographing.

[0028] In the figure: 1. optical built-in lens; 2. viewfinder end; 3. snap-on assembly end; 4. telescopic inner cylinder; 5. outer cover body; 6. arc-shaped drainage cover; 7. drying and cutting board; 8. wind-blocking isolation ring; 9. vent; 10. corresponding air holes; 11. sealing air film; 12. starting motor; 13. magnetic pressure layer; 14. rotating seat; 15. cutting port; 16. slot; 17. locking cover; 18. main valve body; 19. reset ring; 20. valve internal port; 21. air inlet; 22. resistance frame; 23. evenly divided magnetic strip; 24. magnetic repulsion seat; 25. rotating gear; 26. micro fan. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example, see Figures 1 to 7 An optical lens group for video recording includes an optical built-in lens 1 provided with an optical lens and an aperture. The optical built-in lens 1 is a prior art. Compared with the prior art structure, the structure provided inside the optical built-in lens 1 can be provided with a hollow structure to meet the requirements of gas flow inside the optical built-in lens 1. A combined telescopic lens barrel is provided outside the optical built-in lens 1. The two ends of the combined telescopic lens barrel are respectively connected with a viewfinder end 2 and a clamping combined end 3.

[0032] Furthermore, the framing end 2 is connected to the telescopic inner cylinder 4, and the snap-fit ​​combination end 3 is connected to the protective outer cylinder. A magnetic pressure layer 13 adapted to the arc-shaped drainage cover 6 is provided on the framing end 2, and a sealing layer in contact with the telescopic inner cylinder 4 is provided on the inner wall of the arc-shaped drainage cover 6. The telescopic inner cylinder 4 and the protective outer cylinder are connected by a driving mechanism to achieve telescopic extension and retraction between the two. The driving mechanism is a prior art and will not be elaborated herein. An energy storage battery is provided inside the snap-fit ​​combination end 3, and a photovoltaic charging ring is provided outside.

[0033] It should be noted that a photovoltaic charging ring is provided at the snap-on combination end 3, which can realize automatic charging through sunlight when shooting outdoors, ensuring that the internal energy storage battery is in a fully charged state to ensure its power demand when defog is required when not in use, which is convenient for the photographer to use.

[0034] The combined telescopic lens barrel is composed of a telescopic inner cylinder 4 and a protective outer cylinder. The protective outer cylinder includes an outer cover body 5 connected to the clamping combined end 3. The end of the outer cover body 5 is provided with an inwardly contracted arc-shaped drainage cover 6, wherein the arc-shaped drainage cover 6 can change the flow direction of the airflow, thereby changing the flow direction to achieve the effect of gas circulation in the combined telescopic lens barrel.

[0035] A drying and plugging plate 7 is detachably mounted on the control knob, a wind-blocking isolation ring 8 is mounted inside the control knob, and a magnetic repulsion module and a heating module are arranged on the wind-blocking isolation ring 8;

[0036] The outer cover 5 is provided with a control knob, and further, the control knob includes a rotating seat 14 rotatably arranged on the protective outer cylinder, the rotating seat 14 is provided with a cutting port 15 adapted to the dry cutting plate 7, and a locking cover 17 is slidably arranged on the rotating seat 14 through a slot 16.

[0037] It should be noted that the structure of the card slot 16 can refer to the structure of the memory socket of a mobile phone, which can limit the locking cover 17, and the locking cover 17 can be slidably set to close the insertion port 15.

[0038] The drying cutting board 7 is provided with a filter screen filled with desiccant inside, which can absorb the water vapor of the gas when it passes through, and the detachable structure can be replaced regularly to meet the needs of long-term use.

[0039] The inner wall of the telescopic inner tube 4 is provided with a plurality of vents 9 opened by the magnetic repulsion module, and the inner wall of the vent 9 is provided with a magnetically controlled air valve. Furthermore, the magnetically controlled air valve includes a main valve body 18, and a reset ring 19 is fixedly connected to the outer wall of the main valve body 18. The reset ring 19 is connected to the inner wall of the telescopic inner tube 4 through a reset sleeve spring sleeved on the main valve body 18.

[0040] The magnetically controlled air valve can ensure that when the telescopic inner cylinder 4 extends outward, the magnetically controlled air valve can always ensure the closure of the vent 9, thereby effectively ensuring that it is in a sealed state and preventing water vapor and dust from entering the interior through the vent 9.

[0041] Furthermore, an internal valve opening 20 is opened in the main valve body 18, a plurality of air inlets 21 are opened on the inner side wall of the internal valve opening 20, an annular air port is opened on the inner side wall of the air vent 9, and an abutment frame 22 for squeezing the sealing air film 11 is arranged at the end of the main valve body 18. The setting of the abutment frame 22 can squeeze the sealing air film 11, thereby automatically opening the corresponding air hole 10 on the optical built-in lens 1 to realize the flow of gas.

[0042] The optical built-in lens 1 is provided with a corresponding air hole 10 which is adapted to the position of the vent 9. A sealing air film 11 is arranged at the corresponding air hole 10. A plurality of sealing air films 11 are arranged in a fan shape and can automatically close the corresponding air hole 10 without being affected by external force. The magnetic repulsion module includes a plurality of equally divided magnetic strips 23 uniformly arranged on the inner wall of the wind-blocking isolation ring 8, and a magnetic repulsion seat 24 is arranged at the end of the main valve body 18. The magnetic repulsion seat 24 and the equally divided magnetic strips 23 magnetically repel each other, and the heating module includes a resistance heating layer arranged in the wind-blocking isolation ring 8.

[0043] When drying treatment is not required, the magnetic repulsion seat 24 and the equally divided magnetic strip 23 are in a misaligned state, and the magnetically controlled air valve at this time closes the vent 9 .

[0044] A starting motor 12 is provided on the snap-fit ​​combination end 3, and the starting motor 12 is connected to a plurality of micro fans 26 through a driving ring. A transmission annular cavity is opened in the snap-fit ​​combination end 3, and the driving ring is located in the transmission annular cavity. A driving gear meshing with the driving ring is fixedly connected to the output end of the starting motor 12, and the driving ring is meshing with a plurality of rotating gears 25. The rotating gears 25 extend outward through a rotating shaft and are connected to the micro fans 26, so that gas circulation is realized through the micro fans 26.

[0045] After being used in a cold environment, the present invention can prevent the generation of fog by gradually preheating the lens, and the optical lens group can be preheated by turning on the resistance heating layer arranged on the wind-blocking isolation ring 8;

[0046] After use, when fog appears and it is necessary to remove the fog in the optical lens, the combined telescopic lens barrel is in a retracted state. At this time, the vent 9 arranged on the inner wall of the telescopic inner barrel 4 is inside, and the rotating seat 14 arranged on the protective outer barrel is rotated, so that the rotating seat 14 drives the wind-blocking isolation ring 8 connected thereto to rotate, so that the equal-dividing magnetic strip 23 that was originally in a misaligned state with the vent 9 is moved to the position of the vent 9, and the magnetic repulsion seat 24 is squeezed inwardly under the action of the magnetic repulsion force, so that the main valve body 18 that originally closed the vent 9 moves downward, and the vent 9 is opened, so that the flow of air is realized, and the optical built-in lens 1 in the telescopic inner barrel 4 is dried;

[0047] The starter motor 12 arranged on the snap-fit ​​assembly end 3 is controlled to start so as to drive the multiple micro fans 26 to rotate, so that the internal air circulates. The circulating air turns from the arc-shaped drainage cover 6 and flows into the telescopic inner cylinder 4 from the vent 9, thereby achieving gas circulation for the entire optical lens group. When the circulating gas passes through the drying and cutting board 7, the water vapor will be absorbed by the filter drying net arranged in the drying and cutting board 7, thereby ensuring that the optical lens group is in a relatively dry state and avoiding the occurrence of residual water vapor damaging the lens.

[0048] 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 technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An optical lens assembly for video recording, comprising an optical built-in lens (1) provided with an optical lens and an aperture, characterized in that: The optical built-in lens (1) is provided with a combined telescopic lens barrel outside, and the two ends of the combined telescopic lens barrel are respectively connected to a viewfinder end (2) and a clamping combined end (3); The combined telescopic lens barrel is composed of a telescopic inner barrel (4) and a protective outer barrel, the protective outer barrel comprising an outer cover body (5) connected to the clamping combination end (3), the end of the outer cover body (5) is provided with an inwardly contracted arc-shaped drainage cover (6), the outer cover body (5) is provided with a control knob, a dry cutting board (7) is detachably mounted on the control knob, a wind-blocking isolation ring (8) is mounted inside the control knob, and a magnetic repulsion module and a heating module are arranged on the wind-blocking isolation ring (8); The inner wall of the telescopic inner cylinder (4) is provided with a plurality of vents (9) opened by a magnetic repulsion module, the inner wall of the vent (9) is provided with a magnetically controlled air valve, the optical built-in lens (1) is provided with corresponding air holes (10) adapted to the positions of the vent (9), and a sealing air film (11) is provided at the corresponding air hole (10); A starter motor (12) is provided on the snap-fit ​​assembly end (3), and the starter motor (12) is connected to a plurality of micro fans (26) via a drive ring; The magnetically controlled gas valve comprises a main valve body (18), the outer wall of the main valve body (18) being fixedly connected to a reset ring (19), the reset ring (19) being connected to the inner wall of the telescopic inner cylinder (4) via a reset sleeve spring sleeved on the main valve body (18); The main valve body (18) is provided with an inner valve opening (20), the inner side wall of the inner valve opening (20) is provided with a plurality of air inlets (21), the inner side wall of the vent (9) is provided with an annular air port, and the end of the main valve body (18) is provided with a resistance frame (22) for squeezing the sealing air film (11); The magnetic repulsion module comprises a plurality of equally divided magnetic strips (23) uniformly arranged on the inner side wall of the wind-blocking isolation ring (8); a magnetic repulsion seat (24) is arranged at the end of the main valve body (18); the magnetic repulsion seat (24) and the equally divided magnetic strips (23) are magnetically repelled from each other; and the heating module comprises a resistance heating layer arranged in the wind-blocking isolation ring (8); The provision of the abutment frame (22) can achieve squeezing of the sealing air film (11), thereby automatically opening the corresponding air hole (10) on the optical built-in lens (1) to achieve the flow of gas.

2. The optical lens assembly for photographing according to claim 1, characterized in that: The viewing end (2) is connected to the telescopic inner cylinder (4), and the clamping assembly end (3) is connected to the protective outer cylinder. The viewing end (2) is provided with a magnetic pressure layer (13) adapted to the arc-shaped drainage cover (6), and the inner side wall of the arc-shaped drainage cover (6) is provided with a sealing layer that contacts the telescopic inner cylinder (4).

3. The optical lens assembly for video recording according to claim 1, characterized in that: The control knob comprises a rotating seat (14) rotatably arranged on the protective outer cylinder, the rotating seat (14) is provided with a cutting opening (15) adapted to the dry cutting plate (7), and a locking cover (17) is slidably arranged on the rotating seat (14) via a slot member (16).

4. The optical lens assembly for photographing according to claim 1, characterized in that: A transmission annular cavity is provided in the clamping assembly end (3), the drive ring is located in the transmission annular cavity, a drive gear meshingly connected to the drive ring is fixedly connected to the output end of the starter motor (12), the drive ring is meshingly connected to a plurality of rotating gears (25), the rotating gears (25) extend outwards through a rotating shaft, and are connected to the micro fan (26).

5. The optical lens assembly for photographing according to claim 1, characterized in that: The telescopic inner cylinder (4) and the protective outer cylinder are connected by a driving mechanism to achieve telescoping between the two.

6. The optical lens assembly for photographing according to claim 1, characterized in that: The snap-on assembly end (3) is internally provided with an energy storage battery, and externally provided with a photovoltaic charging ring.

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