An upright long focal length optical lens

Abstract

The utility model discloses a kind of vertical long-focus optical lens, including lens barrel, the inner wall of lens barrel is pasted with light-absorbing coating, the outer wall of lens barrel is fixedly connected with rubber sleeve, the front end of lens barrel is installed with objective lens barrel, vertical long-focus optical lens further includes adjusting assembly, is set to the end of lens barrel;Fixed component, is set to the end of adjusting assembly;Wherein, adjusting assembly adjusts the distance between lens group to adjust focal length, fixed component fixes lens, auxiliary shooting.The utility model optical lens field, by the cooperation of fixed component and adjusting assembly, lens can be connected in the outside of fixed component and be connected with the camera of mobile phone, tablet computer by fixed component, solve the problem that the built-in vertical long-focus lens used by existing smart phone is influenced due to the thickness of mobile phone, built-in lens design is shorter, zooming distance is limited, resulting in that shooting distance is very limited, when shooting long shot, imaging is not clear enough.

Description

Technical Field

[0001] This utility model relates to the field of vertical telephoto optical lens technology, specifically a vertical telephoto optical lens. Background Technology

[0002] Camera lenses are mainly divided into vertical lenses and periscope lenses. Vertical telephoto lenses project light onto the image sensor in a straight line and use the lens extension and retraction to change the focal length. They are widely used in the shooting functions of smartphones.

[0003] Due to the characteristics of its optical path, vertical telephoto lenses need to be extended or retracted when changing the focal length, resulting in a larger size.

[0004] Due to the thickness of the phone, the built-in telephoto lens used in existing smartphones is relatively short, and the zoom distance is limited, resulting in a very limited shooting distance and unclear images when shooting distant scenes. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an external vertical telephoto lens, which solves the problem that the built-in vertical telephoto lenses used in existing smartphones are limited in length and zoom distance due to the thickness of the phone, resulting in a very limited shooting distance and unclear images when shooting distant scenes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vertical telephoto optical lens, comprising a lens barrel, the inner wall of which is coated with a light-absorbing coating, a rubber sleeve fixedly connected to the outer wall of the lens barrel, and an objective lens barrel threadedly connected to the front end of the lens barrel. The vertical telephoto optical lens also includes an adjustment component located at the end of the lens barrel; a fixing component located at the end of the adjustment component; wherein, the adjustment component adjusts the distance between the lens groups to adjust the focal length, and the fixing component fixes the lens to assist in shooting.

[0007] Preferably, a dustproof lens is inserted into the front end of the objective lens tube, an objective lens frame is inserted into the inner wall of the objective lens tube, and an objective lens is fixedly connected to the inner wall of the objective lens frame.

[0008] Preferably, the adjustment assembly includes a variable diameter ring, which is threadedly connected to the end of the inner wall of the lens barrel away from the objective lens barrel; a close-up lens is fixedly connected to the inner wall of the variable diameter ring; and a zoom unit is disposed on the end of the inner wall of the variable diameter ring away from the lens barrel. The variable diameter ring connects the lens barrel and the zoom unit, the close-up lens is responsible for close-up photography, and the zoom unit adjusts the distance between the eyepiece and the objective lens to adjust the focal length.

[0009] Preferably, the zoom unit includes a fixed ring threaded to the end of the variable diameter ring; a rotating ring threaded to the outer wall of the fixed ring; a fixed lens fixedly connected to the inner wall of the fixed ring; and a zoom lens fixedly connected to the inner wall of the rotating ring. The fixed ring mounts the fixed lens at the end of the variable diameter ring away from the lens barrel, and the rotating ring adjusts the distance between the fixed lens and the zoom lens.

[0010] Preferably, the fixing component includes a connecting ring threaded to the end of the rotating ring; a fixing bracket is fixedly connected to the outer wall of the connecting ring; wherein the connecting ring connects the fixing component and the zoom unit, and the fixing bracket fixes the entire lens to the mobile phone. Beneficial effects

[0011] This invention provides a vertical telephoto optical lens. It offers the following advantages: Through the cooperation of a fixing component and an adjustment component, the lens can be connected to the outside of the fixing component and then to the camera of a mobile phone or tablet. This solves the problem that existing built-in vertical telephoto lenses used in smartphones are limited in length and zoom distance due to the thickness of the phone, resulting in a very limited shooting distance and insufficient image clarity when shooting distant scenes.

[0012] The zoom unit, lens barrel, and objective lens barrel work together to facilitate easy disassembly, replacement, and control of the focal length. Different lengths of lens barrels can be used to suit different shooting scenarios, making it convenient and inexpensive to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the appearance of the present utility model; Figure 3 for Figure 1 Schematic diagram of the objective lens barrel and the zoom unit with deteriorating barrel; Figure 4 for Figure 1 A schematic diagram of the front and rear fixing brackets and the connecting ring.

[0014] In the diagram: 1. Lens tube; 11. Rubber sleeve; 12. Light-absorbing coating; 2. Objective lens tube; 21. Dustproof lens; 22. Objective lens frame; 23. Objective lens; 3. Adjustment assembly; 32. Close-up lens; 33. Zoom unit; 331. Fixing ring; 332. Rotating ring; 333. Fixed lens; 334. Zoom lens; 4. Fixing assembly; 41. Mounting bracket; 42. Connecting ring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Due to the thickness of the phone, the built-in telephoto lens used in existing smartphones is relatively short, and the zoom distance is limited, resulting in a very limited shooting distance and unclear images when shooting distant scenes.

[0017] In view of this, this embodiment provides a novel vertical telephoto optical lens. Through the cooperation of the fixing component and the adjustment component, the lens can be connected to the outside of the fixing component and connected to the camera of a mobile phone or tablet computer through the fixing component. This solves the problem that the built-in vertical telephoto lenses used in existing smartphones are short due to the thickness of the phone, resulting in a limited zoom distance and a very limited shooting distance, which leads to unclear imaging when shooting distant scenes.

[0018] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process.

[0019] Example 1: By Figure 1-4 It is known that a vertical telephoto optical lens includes a lens barrel 1, the inner wall of which is coated with a light-absorbing coating 12, a rubber sleeve 11 fixedly connected to the outer wall of the lens barrel 1, and an objective lens barrel 2 threadedly connected to the front end of the lens barrel 1. The vertical telephoto optical lens also includes an adjustment component 3 and a fixing component 4. The adjustment component is located at the end of the lens barrel 1; the fixing component 4 is located at the end of the adjustment component 3. The adjustment component 3 adjusts the distance between the lens groups to adjust the focal length, and the fixing component 4 fixes the lens to assist in shooting. In the specific implementation process, it is worth noting that the function of the vertical telephoto optical lens in this embodiment is to assist in shooting, so it does not have any electronic components. Both the lens barrel 1 and the objective lens barrel 2 are made of lightweight plastic material. The light-absorbing coating 12 can use graphene stickers to prevent light from being scattered and refracted multiple times inside the lens barrel and to prolong the propagation of light inside the lens barrel. The outer wall of the rubber sleeve 11 has anti-slip texture, which makes it easy for the staff to grip the lens barrel. Furthermore, a dustproof lens 21 is inserted into the front end of the objective lens tube 2, an objective lens frame 22 is inserted into the inner wall of the objective lens tube 2, and an objective lens 23 is fixedly connected to the inner wall of the objective lens frame 22. In the specific implementation process, it is worth noting that the outer wall of the objective lens frame 22 is tightly fitted to the inner wall of the objective lens tube 2. After insertion, glue can be used for reinforcement. Finally, glue is used to reinforce the dustproof lens 21 to the objective lens tube 2. The dustproof lens 21 is made of glass to prevent external dust from entering the interior of the objective lens tube 2 and dirtying the objective lens. The objective lens tube 2 used in this embodiment has two objective lenses 23 installed inside, which can improve the image quality, reduce optical defects such as aberration and chromatic aberration of a single objective lens, increase the field of view, enhance the light collection ability, and improve the stability of shooting. Furthermore, the adjustment assembly 3 includes a variable diameter ring 31, a close-up lens 32, and a zoom unit 33. The variable diameter ring 31 is threadedly connected to the inner wall of the lens barrel 1 at the end away from the objective lens barrel 2. The close-up lens 32 is fixedly connected to the inner wall of the variable diameter ring 31. The zoom unit 33 is located at the inner wall of the variable diameter ring 31 at the end away from the lens barrel 1. The fixing ring 331 fixes the lens 333 at the end of the variable diameter ring 31 away from the lens barrel 1. The close-up lens 32 is responsible for close-up photography. The zoom unit 33 adjusts the distance between the eyepiece and the objective lens to adjust the focal length. In the specific implementation process, it is worth noting that the variable diameter ring 31 adopts a plastic structure. The outer wall of the front section has an external thread structure to connect to the lens barrel 1, and the inner wall of the end has an internal thread structure to connect to the zoom unit 33. The close-up lens 32 can provide close-up photography function. By unscrewing the lens barrel 1, close-up shooting can be carried out using the close-up lens 32. The zoom unit 33 can change the focal length to make the image clearer. Specifically, when using this upright telephoto optical lens, staff can select objective lens barrel 2, objective lens 23 and lens barrel 1 of different specifications and sizes according to the actual usage and shooting needs, and then assemble the lens for shooting.

[0020] Example 2: From Figure 1-4 As can be seen, the zoom unit 33 includes a fixed ring 331, a rotating ring 332, a fixed lens 333, and a zoom lens 334. The fixed ring 331 is threaded to the end of the variable diameter ring 31; the rotating ring 332 is threaded to the outer wall of the fixed ring 331; the fixed lens 333 is fixedly connected to the inner wall of the fixed ring 331; and the zoom lens 334 is fixedly connected to the inner wall of the rotating ring 332. The fixed ring 331 fixes the connection between the zoom unit 33 and the variable diameter ring 31, and the rotating ring 332 adjusts the distance between the fixed lens 333 and the zoom lens 334. In the specific implementation process, it is worth noting that the zoom unit 33 is the main structure for adjusting the focal length of the lens. The fixed ring 331 is connected to the end of the variable diameter ring 31. When using it, the operator can rotate the rotating ring 332 to move the zoom lens 334, increase the distance between the zoom lens 334 and the fixed lens 333, thereby changing the focal length and adapting to different shooting distances. Furthermore, the fixing component 4 includes a connecting ring 42 and a fixing bracket 41. The connecting ring 42 is threaded to the end of the rotating ring 332; the fixing bracket 41 is fixedly connected to the outer wall of the connecting ring 42. The connecting ring 42 connects the fixing component 4 and the zoom unit 33, and the fixing bracket 41 fixes the entire lens to the mobile phone. In the specific implementation process, it is worth noting that the connecting ring 42 connects to the zoom unit 33, and the fixing bracket 41 is made of elastic plastic material, which has a certain toughness and can be bent slightly, making it convenient for staff to clamp it on mobile phones of different sizes. In addition, the outer wall of the fixing bracket 41 is wrapped with a rubber soft sleeve to increase friction and prevent the fixing bracket 41 from scratching the mobile phone. Specifically, based on the above embodiment one, the operator can select an objective lens barrel 2 and its internal objective lens 23, etc., that meet the usage requirements, and then select a lens barrel 1 of suitable length. The lens barrel 1 is then combined with the objective lens barrel 2, followed by connection to the zoom unit 33 and the fixing component 4. Finally, the fixing bracket 41 is clamped in front of the mobile phone camera to increase the shooting focal length of the mobile phone camera and improve the image clarity. Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical telephoto optical lens, comprising a lens barrel (1), characterized in that: The inner wall of the lens barrel (1) is coated with a light-absorbing coating (12), the outer wall of the lens barrel (1) is fixedly connected with a rubber sleeve (11), and the front end of the lens barrel (1) is threadedly connected to an objective lens barrel (2). The vertical telephoto optical lens also includes: An adjustment component (3) is located at the end of the lens barrel (1); A fixing component (4) is disposed at the end of the adjusting component (3); The adjustment component (3) adjusts the distance between the lens groups to adjust the focal length, and the fixing component (4) fixes the lens to assist in shooting.

2. The vertical telephoto optical lens according to claim 1, characterized in that: A dustproof lens (21) is inserted into the front end of the objective lens tube (2), an objective lens frame (22) is inserted into the inner wall of the objective lens tube (2), and an objective lens (23) is fixedly connected to the inner wall of the objective lens frame (22).

3. A vertical telephoto optical lens according to claim 2, characterized in that: The adjustment component (3) includes: A variable diameter ring (31) is threaded to the end of the inner wall of the lens barrel (1) away from the objective lens barrel (2); A close-up lens (32) is fixedly connected to the inner wall of the variable diameter ring (31); The zoom unit (33) is located on the inner wall of the variable diameter ring (31) at the end away from the lens barrel (1); The variable diameter ring (31) connects the lens barrel (1) and the zoom unit (33), the close-up lens (32) is responsible for close-up photography, and the zoom unit (33) adjusts the distance between the eyepiece and the objective lens (23) to adjust the focal length.

4. A vertical telephoto optical lens according to claim 3, characterized in that: The zoom unit (33) includes: A fixed ring (331) is threaded to the end of the variable diameter ring (31); A rotating ring (332) is threadedly connected to the outer wall of the fixed ring (331); A fixed lens (333) is fixedly connected to the inner wall of the fixed ring (331); A zoom lens (334) is fixedly connected to the inner wall of the rotating ring (332); The fixing ring (331) mounts the fixing lens (333) on the end of the variable diameter ring (31) away from the lens barrel (1), and the rotating ring (332) adjusts the distance between the fixing lens (333) and the zoom lens (334).

5. A vertical telephoto optical lens according to claim 4, characterized in that: The fixing component (4) includes: A connecting ring (42) is threaded to the end of the rotating ring (332); The fixing frame (41) is fixedly connected to the outer wall of the connecting ring (42); The connecting ring (42) connects the fixing component (4) and the zoom unit (33), and the fixing bracket (41) fixes the entire lens to the mobile phone.

Images