A large field of view high-resolution optical lens and camera device

Abstract

The application relates to the field of optical lenses, and discloses a large-view-angle high-resolution optical lens and a camera device, which comprises a camera, the front of the camera is provided with a light shielding mechanism, the light shielding mechanism comprises an outer cylinder fixedly connected to the front side of a camera shell, the outer cylinder is coaxially arranged with a lens barrel, the inner part of the outer cylinder is provided with a moving cylinder, and the bottom of the moving cylinder is provided with a horizontal groove. The positioning mechanism in the sliding arc-shaped groove drives the anticlockwise rotating movement of the arc-shaped sheet, the positioning mechanism is limited by the length of the arc-shaped groove, the contact roller cannot be separated from the arc-shaped sheet, the rotating of the arc-shaped sheet makes the front side surface of the arc-shaped sheet contact with the surface of the contact roller, the contact roller is continuously pushed forward by the arc-shaped surface, the moving cylinder is stably extended, the length of the light shielding is steplessly finely adjusted, and finally the positioning mechanism locks the moving cylinder at the current extension gear. Therefore, the fast and accurate adjustment effect is achieved, and the light shielding device can be quickly extended to the accurate position.

Description

Technical Field

[0001] This invention relates to the field of optical lens technology, specifically to a large field-of-view, high-resolution optical lens and imaging device. Background Technology

[0002] Video cameras are widely used in outdoor vehicle-mounted and panoramic monitoring scenarios. Wide-angle optical lenses are more likely to receive strong, obliquely incident light from the outside. This stray light can create reflected light patterns and glare inside the lens, directly reducing the contrast of the image. To reduce stray light interference, most existing video cameras have a retractable lens hood installed on the outside of the lens.

[0003] Most existing telescopic light-shielding mechanisms use a direct-push-and-slide structure, which can only achieve linear push-pull extension and retraction. The extension length of the light-shielding tube can only be controlled manually by visual inspection, lacking a corresponding stroke linkage structure, making it difficult to accurately control the extension amount of the light-shielding tube. In shooting scenarios with different backlight intensities, operators cannot quickly adjust the light-shielding length to the appropriate value. If the light-shielding tube extends too short, it cannot effectively block strong side light; if it extends too long, it will block the imaging field of view of a wide-field lens, causing black bars to appear in the four corners of the image. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a large field-of-view, high-resolution optical lens and imaging device, solving the problem that the light-shielding mechanism is difficult to quickly adjust to the appropriate position.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a large field-of-view, high-resolution optical lens and imaging device, comprising a camera, a light-shielding mechanism on the front of the camera, the light-shielding mechanism comprising an outer cylinder fixedly connected to the front side of the camera housing, the outer cylinder being coaxially arranged with the lens barrel, a movable cylinder inside the outer cylinder, a horizontal groove at the bottom of the movable cylinder, a longitudinally arranged connecting rod fixedly connected inside the horizontal groove, a connecting block slidably connected to the outer side of the connecting rod, the bottom of the connecting block being fixedly connected to the outer cylinder, a return spring fixedly connected to the side of the connecting block near the camera, the other side of the return spring being fixedly connected to the horizontal groove, a circular cap threadedly connected to the outer side of the movable cylinder; and an adjustment component for adjusting the horizontal position of the movable cylinder between the movable cylinder and the outer cylinder.

[0006] Preferably, the positioning component includes a rotating ring, the side of the rotating ring closest to the camera being rotatably connected to the inner wall of the outer cylinder, and an arc-shaped piece fixedly connected to the top of the rotating ring. The surface of the arc-shaped piece away from the camera has an inclined arc design that gradually shortens in a clockwise direction. An arc-shaped groove penetrating the outer cylinder surface is provided at the top of the outer cylinder, and a positioning mechanism connected to the surface of the arc-shaped piece is provided inside the arc-shaped groove. A contact roller is fixedly installed at the top of the moving cylinder, and the contact roller contacts the front surface of the arc-shaped piece.

[0007] Preferably, the positioning mechanism includes an external block fixedly connected to the rotating ring. The external block is hollow inside and has a protruding block fixedly connected to its front side. A cylindrical through hole is opened inside the protruding block, and a connecting ring is fixedly connected inside the through hole. A connecting spring is fixedly connected to one side of the connecting ring, and a positioning block is fixedly connected to the other side of the connecting spring. A set of arc-shaped positioning grooves corresponding to the moving path of the positioning block are opened on the side of the arc-shaped groove near the positioning block.

[0008] Preferably, the positioning block is composed of a cylindrical segment and a hemispherical part connected together.

[0009] Preferably, a rotating rod is rotatably connected inside the outer block, and an inclined rod is fixedly connected to one side of the rotating rod. Waist holes are respectively opened at the upper and lower ends of the inclined rod. A sliding rod one is slidably connected inside the lower waist hole, and an abutment block is fixedly connected to one side of the sliding rod one. The abutment block is slidably connected to the connecting ring. A sliding rod two is slidably connected inside the upper waist hole, and a pressing block is fixedly connected to one side of the sliding rod two. The pressing block penetrates the top of the outer block, and a guide groove is opened on the surface of the outer block at the connection point. A guide rod is set inside the guide groove, and the guide rod is slidably connected to the pressing block.

[0010] Preferably, the rotating rod divides the inclined rod into upper and lower sections, with the upper section being longer than the lower section, forming a force-saving lever structure.

[0011] Preferably, a fixing ring is fixedly connected to one side of the inner side of the outer block, and a spiral spring is provided inside the fixing ring. The outer ring of the spiral spring is fixedly connected to the fixing ring, and the inner ring of the spiral spring is fixedly connected to the surface of the rotating rod.

[0012] Preferably, a supplementary lighting component is provided on one side of the camera. The supplementary lighting component includes a supplementary lighting cavity opened on one side of the camera. A light-transmitting lens is fixedly connected to the outside of the supplementary lighting cavity. A fixed cylinder is fixedly connected to the inner wall of the supplementary lighting cavity. A movable and adjustable sliding cylinder is slidably connected inside the fixed cylinder. A supplementary light is fixedly installed on one side of the sliding cylinder.

[0013] Preferably, a fixed frame is fixedly connected to the bottom inner side of the supplementary lighting cavity, and a longitudinally arranged lead screw is rotatably connected inside the fixed frame. A moving block is threadedly connected to the outer side of the lead screw, and the top of the moving block is fixedly connected to the outer side of the sliding cylinder. A micro motor is fixedly installed on the rear side of the fixed frame, and the output end of the micro motor is fixedly connected to the lead screw.

[0014] The present invention also provides a large field of view high-resolution optical lens, characterized in that it includes a lens assembly, the lens assembly including a lens barrel fixedly connected to the camera housing, and an image sensor, an infrared cut-off filter, a fifth lens, a fourth lens, a third lens, an aperture stop, a second lens, and a first lens are fixedly mounted in sequence from the inside to the outside of the lens barrel.

[0015] This invention provides a large field-of-view, high-resolution optical lens and imaging device. It offers the following advantages: 1. This invention utilizes a positioning mechanism within a sliding arc-shaped groove to drive the arc-shaped plate in a counter-clockwise rotation. The positioning mechanism, limited by the length of the arc-shaped groove, ensures the contact roller remains in contact with the arc-shaped plate. The rotation of the arc-shaped plate causes its front surface to contact the surface of the contact roller, continuously pushing the contact roller forward and smoothly extending the moving cylinder, achieving stepless fine-tuning of the light-shielding length. Finally, the positioning mechanism locks the moving cylinder at the current extension position. This achieves rapid and precise adjustment, allowing the light-shielding device to quickly extend to a precise position.

[0016] 2. This invention utilizes the greater elastic force of the spiral spring than the connecting spring to position the tilting rod at its maximum angle, placing the pressing block at the rear of the guide groove. The tilting rod then drives the abutment block to press against the surface of the positioning block, inserting the cylindrical section of the positioning block into the positioning groove. This causes the connecting spring to stretch and deform, achieving complete locking. Before adjusting the light-shielding mechanism, the positioning mechanism needs to be unlocked. Unlocking is achieved by pressing the pressing block forward. The pressing block causes the tilting rod to swing against the elastic force of the spiral spring, pulling the abutment block backward and releasing the pressure limit on the positioning block. The positioning block retains only the elastic constraint of the connecting spring, allowing for free switching of positions. This achieves convenient locking and unlocking of the light-shielding mechanism. Attached Figure Description

[0017] Figure 1 This is an overall perspective view of the present invention; Figure 2 This is a schematic diagram of the lens assembly of the present invention; Figure 3 This is a schematic diagram of the supplementary lighting component of the present invention; Figure 4 This is a schematic diagram of the overall structure of the present invention. Figure 5 This is a cross-sectional schematic diagram of the light-shielding mechanism of the present invention; Figure 6 This is a schematic diagram of the splitting of the light-shielding mechanism of the present invention; Figure 7 This is a schematic diagram of the outer cylinder of the present invention; Figure 8 This is a cross-sectional schematic diagram of the positioning mechanism of the present invention.

[0018] Among them, 10 is a camera; 20 is a lens assembly; 201 is a lens barrel; 202 is an image sensor; 203 is an infrared cut-off filter; 204 is a fifth lens; 205 is a fourth lens; 206 is a third lens; 207 is an aperture stop; 208 is a second lens; 209 is a first lens; 30 is a supplementary lighting assembly; 301 is a supplementary lighting cavity; 302 is a light-transmitting mirror; 303 is a fixed cylinder; 304 is a sliding cylinder; 305 is a supplementary light; 306 is a micro motor; 307 is a fixed frame; 308 is a lead screw; 309 is a moving block; 40 is a light-shielding mechanism; and 401 is an outer cylinder. 402. Moving cylinder; 403. Horizontal groove; 404. Connecting rod; 405. Connecting block; 406. Return spring; 407. Contact roller; 408. Rotating ring; 409. Arc-shaped piece; 410. Arc-shaped groove; 50. Positioning mechanism; 501. External block; 502. Protruding block; 503. Connecting ring; 504. Connecting spring; 505. Positioning block; 506. Positioning groove; 507. Rotating rod; 508. Inclining rod; 509. Fixed ring; 510. Vortex spring; 511. Abutment block; 512. Sliding rod one; 513. Pressing block; 514. Sliding rod two. Detailed Implementation

[0019] The technical solutions in 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.

[0020] Please see the appendix Figure 1 -Appendix Figure 6This invention provides a large field-of-view, high-resolution optical lens and imaging device, including a camera 10. A light-shielding mechanism 40 is provided on the front of the camera 10. The light-shielding mechanism 40 includes an outer cylinder 401 fixedly connected to the front side of the camera 10 housing. The outer cylinder 401 is coaxially arranged with the lens barrel 201. A movable cylinder 402 is provided inside the outer cylinder 401. A horizontal groove 403 is formed at the bottom of the movable cylinder 402. A longitudinally arranged connecting rod 404 is fixedly connected inside the horizontal groove 403. A connecting block 405 is slidably connected to the outer side of the connecting rod 404. The bottom of the connecting block 405 is fixedly connected to the outer cylinder 401. A return spring 406 is fixedly connected to the side of the connecting block 405 closest to the camera 10. The other side of the return spring 406 is fixedly connected to the horizontal groove 403. A circular cap is threadedly connected to the outer side of the movable cylinder 402. An adjustment component for adjusting the horizontal position of the movable cylinder 402 is provided between the movable cylinder 402 and the outer cylinder 401. The connecting rod 404 has a rectangular cross-section and is slidably connected to the connecting block 405 to guide the movement of the moving cylinder 402, while the connecting block 405 is located in the horizontal groove 403 to limit the movement distance of the moving cylinder 402.

[0021] The camera 10 mainly consists of an imaging component, a control unit, and a storage unit. Light from external objects enters the imaging component, is converged and corrected by the optical lens, and is then projected onto the sensor, where the light signal is converted into an electrical signal. The control unit receives the image electrical signal and performs image quality processing. The processed image data is then transferred to the storage unit for saving. The entire unit works together to complete the camera operation.

[0022] The light-blocking mechanism 40 is used to block strong light from the side and reduce stray light entering the lens, eliminating light patterns and glare generated during imaging. When not in use, it can also provide physical protection for the front of the lens, reducing the probability of the lens being scratched or bumped.

[0023] When using the camera 10, first remove the circular cover by rotating it to expose the front end of the lens. Then, depending on the lighting conditions at the shooting position, the operator controls the adjustment component to adjust the position of the moving tube 402, causing the moving tube 402 to move forward. During the movement, the connecting rod 404 slides along the inside of the connecting block 405, while the return spring 406 is compressed until the moving tube 402 moves to the appropriate position. The forward-extending moving tube 402 can extend the light-blocking path, intercept large-angle stray light, prevent strong light from directly entering the lens light path, reduce image fog and radial light patterns, and improve image clarity in backlit environments.

[0024] refer to Figure 6Specifically, the positioning assembly includes a rotating ring 408, the rear side of which is rotatably connected to the inner wall of the outer cylinder 401. An arc-shaped piece 409 is fixedly connected to the top of the rotating ring 408. The front surface of the arc-shaped piece 409 is an inclined arc design that gradually shortens in a clockwise direction. An arc-shaped groove 410 penetrating the surface wall of the outer cylinder 401 is provided at the top of the outer cylinder 401. A positioning mechanism 50 connected to the surface of the arc-shaped piece 409 is provided inside the arc-shaped groove 410. A contact roller 407 is fixedly installed at the top of the moving cylinder 402. The contact roller 407 contacts the front surface of the arc-shaped piece 409.

[0025] In use, the positioning mechanism 50 inside the sliding arc groove 410 drives the arc plate 409 to rotate counterclockwise. The positioning mechanism 50 is limited by the length of the arc groove 410, so that the contact roller 407 will not disengage from the arc plate 409. The rotation of the arc plate 409 causes the front surface of the arc plate 409 to contact the surface of the contact roller 407, so that the contact roller 407 is continuously pushed forward by the arc surface, driving the moving cylinder 402 to extend smoothly, realizing stepless fine adjustment of the light-blocking length. Finally, the positioning mechanism 50 locks the moving cylinder 402 in the current extension position to prevent the moving cylinder 402 from retracting on its own due to equipment vibration, ensuring that the light-blocking length remains stable.

[0026] refer to Figure 7 , 8 The positioning mechanism 50 includes an external block 501 fixedly connected to the rotating ring 408. The external block 501 is hollow inside and has a protruding block 502 fixedly connected to its front side. A cylindrical through hole is opened inside the protruding block 502. A connecting ring 503 is fixedly connected inside the through hole. A connecting spring 504 is fixedly connected to the front side of the connecting ring 503. A positioning block 505 is fixedly connected to the front side of the connecting spring 504. A set of arc-shaped positioning grooves 506 corresponding to the moving path of the positioning block 505 are opened on the side of the arc-shaped groove 410 near the positioning block 505.

[0027] refer to Figure 8 Preferably, the positioning block 505 is composed of a cylindrical section and a hemispherical part connected together. Under normal circumstances, the elastic support of the connecting spring 504 causes the hemispherical part of the positioning block 505 to be inserted into the corresponding positioning groove 506. This locking does not completely lock the positions of the outer block 501 and the protruding block 502. When the outer block 501 continues to slide along the arc groove 410, the sliding force causes the positioning block 505 to contact the boundary of the positioning groove 506. The hemispherical surface is squeezed backward by the groove wall, compressing the connecting spring 504. The positioning block 505 disengages from the current positioning groove 506 and slides smoothly to the next position to complete the adjustment.

[0028] refer to Figure 8Furthermore, a rotating rod 507 is rotatably connected inside the outer block 501. An inclined rod 508 is fixedly connected to the left side of the rotating rod 507. The upper and lower ends of the inclined rod 508 are respectively provided with waist holes. A sliding rod 512 is slidably connected inside the lower waist hole. An abutment block 511 is fixedly connected to the right side of the sliding rod 512. The abutment block 511 is slidably connected to the connecting ring 503. A sliding rod 514 is slidably connected inside the upper waist hole. A pressing block 513 is fixedly connected to the left side of the sliding rod 514. The pressing block 513 penetrates the top of the outer block 501 and a guide groove is provided on the surface of the outer block 501 at the connection point. A guide rod is provided inside the guide groove. The guide rod is slidably connected to the pressing block 513 to guide the movement of the pressing block 513.

[0029] refer to Figure 8 Preferably, the rotating rod 507 divides the tilting rod 508 into upper and lower sections, with the upper section being longer than the lower section, forming a force-saving lever structure. The unlocking action can be completed by pressing the pressing block 513 with a small amount of pressure, reducing the operating resistance.

[0030] refer to Figure 8 Preferably, a fixing ring 509 is fixedly connected to the inner right side of the external block 501. A spiral spring 510 is provided inside the fixing ring 509. The outer ring of the spiral spring 510 is fixedly connected to the fixing ring 509, and the inner ring of the spiral spring 510 is fixedly connected to the surface of the rotating rod 507. In the non-contact state, the elastic force of the spiral spring 510 is greater than that of the connecting spring 504, causing the tilting rod 508 to be in the tilted position with the largest angle, so that the pressing block 513 is located at the last side of the guide groove. The tilting rod 508 drives the abutment block 511 to press against the surface of the positioning block 505, so that the cylindrical section of the positioning block 505 is inserted into the positioning groove 506, causing the connecting spring 504 to stretch and deform, thereby achieving complete locking.

[0031] Before adjusting the light-shielding mechanism 40, the positioning mechanism 50 needs to be unlocked. To unlock, press the pressing block 513 forward. The pressing block 513 causes the tilting rod 508 to swing against the elastic force of the spiral spring 510, pulling the abutment block 511 to move backward, releasing the pressing limit on the positioning block 505. The positioning block 505 retains only the elastic constraint of the connecting spring 504, allowing for free switching of gears.

[0032] When shooting in low-light conditions, supplemental lighting is often needed to improve the overall brightness of the image and ensure clear imaging in low-light environments. However, the existing supplemental lighting components 30 use a fixed installation method, which makes it difficult to match different shooting distances and easily leads to problems such as overexposure in close-up or insufficient brightness in distant scenes. Therefore, a supplemental lighting component 30 is proposed.

[0033] refer to Figure 1 , 3A supplementary lighting assembly 30 is provided on the front side of the camera 10. The supplementary lighting assembly 30 includes a supplementary lighting cavity 301 opened on the front side of the camera 10. A light-transmitting lens 302 is fixedly connected to the outside of the supplementary lighting cavity 301. A fixed cylinder 303 is fixedly connected to the inner wall of the supplementary lighting cavity 301. A sliding cylinder 304 that can be adjusted back and forth is slidably connected inside the fixed cylinder 303. A supplementary light 305 is fixedly installed on the front side of the sliding cylinder 304.

[0034] When facing long-distance wide-angle shooting situations, the fill light 305 is moved forward by moving the slider 304 forward. The fill light 305 is closer to the lens 302, and the range of light scattering outward is larger. The fill light area can completely cover the large field of view of the lens and improve the vignetting in the four corners of the image.

[0035] When shooting close-up objects, the fill light 305 is moved back by moving the sliding tube 304 backward, so that the fill light 305 is further away from the light transmission lens 302. The beam divergence angle is narrowed and the light energy is concentrated, avoiding overexposure caused by excessive brightness in the center area of ​​the image when shooting close-up.

[0036] refer to Figure 2 Furthermore, a fixed frame 307 is fixedly connected to the bottom inner side of the supplementary lighting cavity 301. A longitudinally arranged lead screw 308 is rotatably connected inside the fixed frame 307. A moving block 309 is threadedly connected to the outside of the lead screw 308. The top of the moving block 309 is fixedly connected to the outside of the sliding cylinder 304. A micro motor 306 is fixedly installed on the rear side of the fixed frame 307. The output end of the micro motor 306 is fixedly connected to the lead screw 308.

[0037] In use, the micro motor 306 is started by the built-in power supply of the camera 10. The output end of the micro motor 306 drives the lead screw 308 to rotate in the forward or reverse direction. The screw drive drives the moving block 309 to make linear displacement, and synchronously drives the sliding cylinder 304 and the fill light 305 to move back and forth, so as to realize the automatic and precise adjustment of the fill light position.

[0038] The present invention also provides a large field of view high resolution optical lens, including a lens assembly 20, wherein the lens assembly 20 is located in front of the camera 10, and the lens assembly 20 includes a lens barrel 201 fixedly connected to the housing of the camera 10. The lens barrel 201 is fixedly mounted from the inside to the outside with an image sensor 202, an infrared cut-off filter 203, a fifth lens 204, a fourth lens 205, a third lens 206, an aperture stop 207, a second lens 208, and a first lens 209.

[0039] Camera 10 uses lens assembly 20 to collect light from external objects, and works with light-blocking mechanism 40 to suppress stray light and supplementary lighting assembly 30 to adjust illumination brightness, ultimately outputting high-quality images. Lens assembly 20 is responsible for collecting large-angle incident light and correcting aberrations in the optical path to ensure clear wide-angle images throughout. First lens 209 and second lens 208 form a front negative power structure to receive large-angle light, widening the overall imaging field of view and achieving wide-angle shooting. Third lens 206, fourth lens 205, and fifth lens 204 work together to correct spherical aberration and chromatic aberration, improving the resolution at the center and edges of the image. Infrared cut-off filter 203 filters infrared stray light to avoid ghosting. The corrected light is finally projected onto image sensor 202 to complete photoelectric conversion, thereby simultaneously achieving a large field of view and high-resolution imaging effect.

[0040] Based on the above technical solution, this embodiment of the invention also provides a working principle of a large field of view high-resolution optical lens and a camera device, including the following: When using the camera 10, firstly, the circular cover is removed by rotation to expose the front end of the lens. Then, according to the lighting conditions at the shooting position, the operator controls the adjustment component to adjust the position of the moving cylinder 402. During adjustment, the positioning mechanism 50 inside the sliding arc groove 410 drives the arc plate 409 to rotate counterclockwise. The positioning mechanism 50 is limited by the length of the arc groove 410, so that the contact roller 407 will not detach from the contact with the arc plate 409. The rotation of the arc plate 409 causes the front surface of the arc plate 409 to contact the surface of the contact roller 407, so that the contact roller 407 is continuously pushed forward by the arc surface, driving the moving cylinder 402 to extend smoothly, realizing stepless fine adjustment of the light-shielding length. Finally, the positioning mechanism 50 locks the moving cylinder 402 in the current extension position to prevent the moving cylinder 402 from retracting itself due to equipment vibration, ensuring that the light-shielding length remains stable.

[0041] Although embodiments of the invention have been shown and described, 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. A camera device, characterized in that, include: The camera (10) has a light-shielding mechanism (40) on its front side. The light-shielding mechanism (40) includes an outer cylinder (401) fixedly connected to the front side of the camera (10) housing. The outer cylinder (401) is coaxially arranged with the lens barrel (201). A movable cylinder (402) is provided inside the outer cylinder (401). A horizontal groove (403) is opened at the bottom of the movable cylinder (402). A longitudinally arranged connecting rod (404) is fixedly connected inside the horizontal groove (403). A connecting block (405) is slidably connected to the outer side of the 04), the bottom of the connecting block (405) is fixedly connected to the outer cylinder (401), a reset spring (406) is fixedly connected to the side of the connecting block (405) near the camera (10), the other side of the reset spring (406) is fixedly connected to the horizontal groove (403), a circular cover is threadedly connected to the outer side of the moving cylinder (402), and an adjustment component for adjusting the horizontal position of the moving cylinder (402) is provided between the moving cylinder (402) and the outer cylinder (401).

2. The camera device according to claim 1, characterized in that, The positioning assembly includes a rotating ring (408), which is rotatably connected to the inner wall of the outer cylinder (401) on the side near the camera (10). An arc-shaped piece (409) is fixedly connected to the top of the rotating ring (408). The surface of the arc-shaped piece (409) away from the camera (10) is an inclined arc design that gradually shortens in a clockwise direction. An arc-shaped groove (410) penetrating the outer wall of the outer cylinder (401) is provided on the top of the outer cylinder (401). A positioning mechanism (50) connected to the surface of the arc-shaped piece (409) is provided inside the arc-shaped groove (410). A contact roller (407) is fixedly installed on the top of the moving cylinder (402). The contact roller (407) contacts the front surface of the arc-shaped piece (409).

3. The camera device according to claim 2, characterized in that, The positioning mechanism (50) includes an external block (501) fixedly connected to the rotating ring (408). The external block (501) is hollow inside and has a protruding block (502) fixedly connected to its front side. A cylindrical through hole is opened inside the protruding block (502). A connecting ring (503) is fixedly connected inside the through hole. A connecting spring (504) is fixedly connected to one side of the connecting ring (503). A positioning block (505) is fixedly connected to the other side of the connecting spring (504). A set of positioning grooves (506) with an arc shape and corresponding to the moving path of the positioning block (505) are opened on the side of the arc groove (410) near the positioning block (505).

4. The camera device according to claim 3, characterized in that, The positioning block (505) is composed of a cylindrical section and a hemispherical part connected together.

5. A camera device according to claim 4, characterized in that, The outer block (501) is rotatably connected to a rotating rod (507). An inclined rod (508) is fixedly connected to one side of the rotating rod (507). The upper and lower ends of the inclined rod (508) are respectively provided with waist holes. A sliding rod (512) is slidably connected in the lower waist hole. A stop block (511) is fixedly connected to one side of the sliding rod (512). The stop block (511) is slidably connected to the connecting ring (503). A sliding rod (514) is slidably connected in the upper waist hole. A pressing block (513) is fixedly connected to one side of the sliding rod (514). The pressing block (513) penetrates the top of the outer block (501) and a guide groove is provided on the surface of the outer block (501) at the connection point. A guide rod is provided inside the guide groove. The guide rod is slidably connected to the pressing block (513).

6. A camera device according to claim 5, characterized in that, The rotating rod (507) divides the tilting rod (508) into upper and lower sections, with the upper section being longer than the lower section, forming a force-saving lever structure.

7. A camera device according to claim 6, characterized in that, A fixed ring (509) is fixedly connected to one side of the inner side of the external block (501). A spiral spring (510) is provided inside the fixed ring (509). The outer ring of the spiral spring (510) is fixedly connected to the fixed ring (509), and the inner ring of the spiral spring (510) is fixedly connected to the surface of the rotating rod (507).

8. A camera device according to claim 7, characterized in that, A supplementary lighting assembly (30) is provided on one side of the camera (10). The supplementary lighting assembly (30) includes a supplementary lighting cavity (301) opened on one side of the camera (10). A light-transmitting lens (302) is fixedly connected to the outside of the supplementary lighting cavity (301). A fixed cylinder (303) is fixedly connected to the inner wall of the supplementary lighting cavity (301). A movable and adjustable sliding cylinder (304) is slidably connected inside the fixed cylinder (303). A supplementary light (305) is fixedly installed on one side of the sliding cylinder (304).

9. A camera device according to claim 8, characterized in that, A fixed frame (307) is fixedly connected to the bottom inner side of the supplementary light cavity (301). A longitudinally arranged lead screw (308) is rotatably connected inside the fixed frame (307). A moving block (309) is threadedly connected to the outside of the lead screw (308). The top of the moving block (309) is fixedly connected to the outside of the sliding cylinder (304). A micro motor (306) is fixedly installed on the rear side of the fixed frame (307). The output end of the micro motor (306) is fixedly connected to the lead screw (308).

10. A large field-of-view, high-resolution optical lens, and a camera device according to any one of claims 1 to 9, characterized in that, The lens assembly (20) includes a lens barrel (201) fixedly connected to the housing of the camera (10). The lens barrel (201) is fixedly mounted from the inside to the outside with an image sensor (202), an infrared cut-off filter (203), a fifth lens (204), a fourth lens (205), a third lens (206), an aperture stop (207), a second lens (208), and a first lens (209).

Images