CN114035392A

CN114035392A - Electric zooming focusing lens

Info

Publication number: CN114035392A
Application number: CN202111399986.0A
Authority: CN
Inventors: 刘俊辉; 徐洁
Original assignee: Suzhou Shence Intelligent Technology Co ltd
Current assignee: Suzhou Shence Intelligent Technology Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-02-11

Abstract

The invention belongs to the technical field of camera lenses, and particularly relates to an electric zooming and focusing lens which comprises an upper cover shell and a lower cover shell, wherein a camera shell is arranged on the outer wall of the top of the upper cover shell, a lens anti-twisting fixing plate is arranged on the outer wall of one side of the camera shell, a lens dustproof air curtain nozzle is arranged on the outer wall of the bottom of the upper cover shell, a zooming mechanism and a focusing mechanism are arranged in the upper cover shell, the zooming mechanism comprises a zooming gear sleeve, a lens barrel, an adjusting mechanism fixing support, a zooming adjusting ring with a gear, an electric zooming motor and a zooming position sensor, the lens barrel is provided with a lens group, and the adjusting mechanism fixing support is fixed on the lens barrel and drives the electric zooming motor. The miniature zoom focusing lens provided by the invention has the advantages of compact mechanism, small diameter and short length, is convenient to mount on various industrial cameras, is additionally provided with the lens self-cleaning device, and is suitable for still keeping better definition under severe conditions such as much dust and the like.

Description

Electric zooming focusing lens

Technical Field

The invention relates to the technical field of camera lenses, in particular to an electric zooming and focusing lens.

Background

The zoom lens is a camera lens which can change the focal length in a certain range to obtain different field angles, thereby obtaining images in different sizes and different shooting object ranges. Zoom lenses have been widely used because of their variable field of view. The motorized zoom lens brings the advantages of the zoom lens into full play.

At present, a common electric zoom lens generally drives a reduction gearbox through a stepping motor and then drives a focusing ring with a gear to rotate, so that an electric zoom function is realized. The structure for driving the lens to focus through the stepping motor and the reduction box generally has the following defects: generally, a motorized zoom lens has a large volume and is limited to be installed in a small space and a compact area, so that the use place of the motorized zoom lens is limited to a certain extent.

Disclosure of Invention

Based on the structure that the stepping motor and the reduction gearbox are used for driving the lens to focus, which is provided in the background art, the following defects generally exist: the invention provides an electric zooming focusing lens, and provides a miniature zooming focusing lens which is compact in mechanism, small in diameter and short in length and is convenient to mount on various industrial cameras in order to overcome the mechanical weakness of the electric zooming lens. This patent has increased camera lens self-cleaning device, is fit for still keeping better definition under more abominable conditions such as many dusts.

The electric zooming and focusing lens provided by the invention comprises an upper cover shell and a lower cover shell, wherein the outer wall of the top part of the upper cover shell is provided with a camera shell, and the outer wall of one side of the camera shell is provided with a lens anti-twist fixing plate, the outer wall of the bottom of the upper housing is provided with a lens dustproof air curtain nozzle, and the inside of the upper cover shell is provided with a zooming mechanism and a focusing mechanism, the zooming mechanism comprises a zooming gear sleeve, a lens barrel, an adjusting mechanism fixing bracket, a zooming adjusting ring with a gear, an electric zooming motor and a zooming position sensor, the lens barrel is provided with a lens group, the adjusting mechanism fixing bracket is fixed on the lens barrel, the electric zooming motor is driven to drive the zooming adjusting ring with the gear to rotate, the zooming gear is sleeved on the outer ring of the zooming adjusting ring with the gear, and the outer wall of the bottom of the adjusting mechanism fixing support is fixed with the diaphragm adjusting mechanism through screws. The rotation of the zooming adjusting ring drives the lens group in the lens cone to change the size of the focal length, thereby realizing the adjustment of the focal length. The zoom position sensor detection assembly is used for detecting the position change of the lens in the zooming process, so that the accurate control of the zooming position is realized conveniently.

Preferably, the focusing mechanism comprises a focusing gear sleeve, a focusing adjusting ring with a gear, an electric focusing motor and a focusing position sensor, the focusing adjusting ring with the gear is driven to rotate by driving the electric focusing motor, the focusing gear sleeve is arranged on the outer ring of the focusing adjusting ring with the gear, and the rotation of the focusing adjusting ring drives a lens group in the lens barrel to adjust the distance of the lens relative to the lens barrel. The focusing process is realized, and the focusing position sensor detection assembly is used for detecting the position change of the lens in the focusing process, so that the accurate control of the focusing position is convenient to realize.

The beneficial effects of the invention are as follows:

1. according to the electric zooming and focusing lens, the position change in the zooming process of the lens can be accurately detected, and the resetting precision is high; the number of idle return steps in the focusing process of the motorized zoom lens can be greatly reduced, so that the focusing speed of the conventional motorized zoom lens is improved, and the realization difficulty of the synchronous focusing function is reduced; the moving speed of the lens group is high during focusing, the focusing speed of the lens is improved, the transmission efficiency of the transmission system is high, and the load driving capacity loss is small; extremely low operating noise can be achieved.

2. This electronic focusing lens that zooms, this patent mechanism are simple compact, and the diameter is little, and length is short, is convenient for install on various industrial cameras, and this patent has increased camera lens automatically cleaning device, is fit for still keeping better definition under more abominable conditions such as many dusts, and electronic focusing lens that zooms can realize trading the type fast, realizes the not product of equidimension of the compatible shooting of same image camera, and need not artifical change or adjusting the camera lens.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

Fig. 1 is a schematic external structural view of an electric zoom lens according to the present invention;

fig. 2 is a schematic diagram of an internal structure of the electric zoom lens according to the present invention.

In the figure: the device comprises an upper cover shell 1, a lower cover shell 2, a dustproof air curtain nozzle of a lens 3, a camera shell 4, an anti-twisting fixing plate of the lens 5, a lens barrel 6, a zoom adjusting ring with a gear 7, a focusing position sensor 8, an adjusting mechanism fixing support 9, a focusing adjusting ring with a gear 10, a zoom position sensor 11, an electric focusing motor 12, an electric zooming motor 13 and a diaphragm adjusting mechanism 14.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-2, the electric zoom lens includes an upper casing 1 and a lower casing 2, a camera housing 4 is disposed on an outer wall of a top portion of the upper casing 1, and the outer wall of one side of the camera shell 4 is provided with a lens anti-twist fixing plate 5, the outer wall of the bottom of the upper housing 1 is provided with a lens dustproof air curtain nozzle 3, and the inside of the upper cover shell 1 is provided with a zooming mechanism and a focusing mechanism, the zooming mechanism comprises a zooming gear sleeve, a lens barrel 6, an adjusting mechanism fixing bracket 9, a zooming adjusting ring 7 with gears, an electric zooming motor 13 and a zooming position sensor 11, the lens barrel 6 is provided with a lens group, the adjusting mechanism fixing bracket 9 is fixed on the lens barrel 6, the electric zooming motor 13 is driven to drive the zooming adjusting ring 7 with the gear to rotate, the zooming gear is sleeved on the outer ring of the zooming adjusting ring 7 with the gear, and the outer wall of the bottom of the adjusting mechanism fixing support 9 is fixed with the diaphragm adjusting mechanism 14 through screws. The rotation of the zoom adjusting ring drives the lens group in the lens barrel 6 to change the focal length, so as to adjust the focal length. The zoom position sensor detection assembly is used for detecting the position change of the lens in the zooming process, so that the accurate control of the zoom position is convenient to realize, the accurate detection of the position change of the lens in the zooming process can be realized, and the resetting precision is high; the number of idle return steps in the focusing process of the motorized zoom lens can be greatly reduced, so that the focusing speed of the conventional motorized zoom lens is improved, and the realization difficulty of the synchronous focusing function is reduced.

Referring to fig. 1-2, in the present invention, the focusing mechanism includes a focusing gear sleeve, a focusing adjustment ring 10 with a gear, an electric focusing motor 12, and a focusing position sensor 8, the focusing adjustment ring 10 with the gear is driven to rotate by driving the electric focusing motor 12, the focusing gear sleeve is installed on the outer ring of the focusing adjustment ring 10 with the gear, and the rotation of the focusing adjustment ring drives the lens group in the lens barrel 6 to adjust the distance of the lens with respect to the lens barrel 6. The focusing process is realized, the focusing position sensor detection assembly is used for detecting the position change in the lens focusing process, so that the accurate control of the focusing position is convenient to realize, the moving speed of the lens group is high during focusing, the lens focusing speed is improved, the transmission efficiency of a transmission system is high, and the load driving capacity loss is small; extremely low operating noise can be achieved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. Electronic focus lens that zooms, including last housing (1) and lower housing (2), its characterized in that, the top outer wall of going up housing (1) is provided with camera shell (4), and one side outer wall of camera shell (4) is provided with camera lens and prevents twisting reverse fixed plate (5), the bottom outer wall of going up housing (1) is provided with dustproof air curtain nozzle of camera lens (3), and the inside of going up housing (1) is provided with zoom mechanism and focusing mechanism, zoom mechanism includes zoom gear cover, lens cone (6), adjustment mechanism fixed bolster (9), takes gear zoom adjustable ring (7), electronic zoom motor (13) and zoom position sensor (11), and lens cone (6) are provided with the battery of lenses.

2. The electric zoom focus lens according to claim 1, wherein the focus mechanism includes a focus gear sleeve, a geared focus adjustment ring (10), an electric focus motor (12), and a focus position sensor (8), and the geared focus adjustment ring (10) is rotated by driving the electric focus motor (12).

3. The electric zoom focusing lens according to claim 1, wherein the focusing gear sleeve is mounted on an outer ring of a geared focusing adjustment ring (10), and rotation of the focusing adjustment ring drives a lens group in the lens barrel (6) to adjust the distance of the lens with respect to the lens barrel (6).

4. The electric zoom lens according to claim 3, wherein the adjusting mechanism fixing bracket (9) is fixed on the lens barrel (6), the electric zoom motor (13) is driven to drive the zoom adjusting ring (7) with the gear to rotate, the zoom gear is sleeved on the outer ring of the zoom adjusting ring (7) with the gear, and the diaphragm adjusting mechanism (14) is fixed on the outer wall of the bottom of the adjusting mechanism fixing bracket (9) through a screw.