CN217902152U

CN217902152U - Zooming structure

Info

Publication number: CN217902152U
Application number: CN202221204049.5U
Authority: CN
Inventors: 李东
Original assignee: Shenzhen Jsl Electronics Ltd
Current assignee: Shenzhen Jsl Electronics Ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-11-25
Anticipated expiration: 2032-05-19

Abstract

The utility model provides a zooming structure, which comprises a lens (103) arranged between a light hole (102) and a photosensitive element (104), wherein the lens (103) is provided with a plurality of sub-lenses with different curvatures; one sub-lens is positioned on an optical path diagram between the light hole (102) and the photosensitive element (104) by adjusting the lens (103); clear images are obtained by adjusting the distance between the lens (103) and the light hole (102). The utility model discloses a change the lens of different curvatures and zoom, the lens of different curvatures is for constituteing, obtains different focuses through changing sub-lens, satisfies different distance object transmission light and forms an image on the sensitization chip behind sub-lens.

Description

Zooming structure

Technical Field

The utility model relates to an optics field especially relates to the problem of zooming in the formation of image.

Background

In the conventional zooming method, a plurality of lenses are combined, and the distance between the lenses is adjusted to change the focal length, so that the reflected light of an object falls on the focal length position to form an image. Since the curvature of the lenses is fixed after the lenses are manufactured, the adjusting distance between the lenses is very small, and the imaging of a large-range object is difficult to obtain. If an object with a large difference in distance needs to be shot, the lens needs to be moved by a large distance, and the volume of the lens is greatly increased. In addition, zooming is performed through adjusting the distances among the lenses, so that the zoom lens is difficult to control, complicated to adjust and low in efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a zooming structure, which comprises a lens arranged between a light hole and a photosensitive element, wherein the lens is provided with a plurality of sub-lenses with different curvatures; one of the sub-lenses is positioned on the light path diagram between the light hole and the photosensitive element by adjusting the lens; clear images are obtained by adjusting the distance from the lens to the light hole; this structure obtains different focuses through changing the sub-lens, satisfies different distances object emission light and forms an image on photosensitive chip behind the sub-lens.

As a further improvement, the lens is a component, or the lens is a part, and the lens with different curvatures is arranged on the part.

As a further improvement of the utility model, the number of the sub-lenses is two to eight.

As a further improvement of the utility model, the sub-lens is changed by rotating or moving.

As a further improvement of the utility model, the sub-lenses are arranged in an annular shape or a linear shape or a fan shape.

As a further improvement of the utility model, the shape of the sub-lens is circular or rectangular.

As a further improvement, the sub-lenses are glass, acrylic, water or oil formed structures with convex lens function.

The utility model has the advantages that:

the utility model discloses a change the lens of different curvatures and zoom. The design has the sub-lens of the different curvatures of a plurality of on this structure lens, obtains different focuses through changing sub-lens, satisfies different distance object emission light and forms an image on photosensitive chip behind sub-lens, changes sub-lens and can be arbitrary modes such as rotation or removal and realize. The sub-lenses can be arranged in any shape such as annular or linear shape, the lenses can be in any other shape such as circular or rectangular shape, the circular lenses arranged in the annular shape are only used for illustration in the application, and other similar arrangements and shapes can be analogized according to the embodiment. The curved surfaces with different curvatures can be obtained by replacing the sub-lenses, so that the focal length is changed, different depth of field is obtained, the imaging of a very close or very far object can be met, and the object distance range of the imaging of the lens is greatly increased. Through changing the sub-lens, need not remove very big distance and just can obtain wider range object formation of image, simple structure, occupation space is little, has reduced the volume of camera lens greatly, and the operation is more simple convenient, and the formation of image is more effective clear.

Drawings

FIG. 1 is a schematic diagram of a light ray refracted by a lens;

FIG. 2 is a schematic view of the depth of field of light after passing through an aperture and a lens;

FIG. 3 is a schematic illustration of close-up object imaging;

FIG. 4 is a schematic view of remote object imaging;

FIG. 5 is a schematic left side view of imaging of a close-up object;

FIG. 6 is a schematic left side view of remote object imaging;

fig. 7 is a schematic view of lens movement.

The names of the components in the figure are as follows: an object 101, a light-transmitting hole 102, a lens 103 and a photosensitive element 104.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

FIG. 2 is a schematic view of the depth of field of light after passing through the aperture and the lens; the larger the aperture, the smaller the depth of field; (the closer the object distance is), the smaller the aperture is, the larger the depth of field is; (the farther the object is). Light reflected from the object 101 passes through the light-transmitting hole 102 and strikes the lens 103, and due to the principle of refraction of light: and the light density medium is emitted from the light thinning medium, and the refraction angle theta 2 is smaller than the incidence angle theta 1. As shown in fig. 1, fig. 1 is a schematic view of a light ray refracted by a lens, a convex lens, and a light ray absorbed from an optically thinner medium into an optically denser medium: angle of refraction < angle of incidence: θ 2< θ 1. The light passing through the lens 103 focuses on the focal point, and before and after the focal point, the light starts to focus and diffuse, the image becomes blurred, the imaging point forms an enlarged circle called a diffusion circle, when the diameter of the diffusion circle is large to a certain degree, the diffusion circle feels blurred, and the distance is called the depth of field.

As shown in fig. 3, fig. 3 is a schematic view of close-up object imaging; scene one: and (3) imaging the short-distance object, and adjusting the distances B1 and C1 by matching with the lens 1 to obtain an image. Imaging of the close-distance object: the distance between the object 101 and the light hole 102 is U1, the distance between the light hole 102 and the photosensitive element 104 is L, L is not adjustable due to the fixed structure, the distance B1 between the lens 103 and the light hole 102 can be adjusted by translating the lens 103 to adjust B1, and the distances F1 and F1 between the lens 103 and the photosensitive element 104 are the focal distance of the close-distance object. Light reflected from the object 101 passes through the light-transmitting hole 102 and strikes the mirror 103, and the light passing through the mirror 103 is focused into a spot on the photosensitive element 104. Thereby obtaining an inverted image of the object 101. The lens 103 is composed of a plurality of cambered surfaces with different curvatures, for example, a first sub-lens 1 and a second sub-lens 2.

The sub-lenses are arranged in a ring shape or a linear shape or a fan shape, and other regular arrangements such as fan shapes may be possible in the subsequent technological development.

The lens 103 may rotate and translate. The focal length F1 is obtained by rotating the first cambered surface 1 with proper curvature of the lens 103 and translating the distance B1 of the lens 103, and the focal length F1 is just above the photosensitive element 104, so that the focal length of the refracted light just falls on the photosensitive element 104 to obtain the clearest image.

As shown in fig. 4, fig. 4 is a schematic view of imaging of a distant object; scene two: and imaging the long-distance object, and adjusting the distances B2 and C2 by matching with the lens 2 to obtain imaging. Imaging of a remote object: the distance from the object 101 to the light hole 102 is U2, the distance from the light hole 102 to the photosensitive element 104 is L, L is not adjustable due to the fixed structure, the distance B2 from the lens 103 to the light hole 102 can be adjusted by translating the lens 103 to adjust B2, and the distances F2 from the lens 103 to the photosensitive element 104 and F2 are the focal distance of the remote object. Light reflected from the object 101 passes through the light-transmitting hole 102 and strikes the mirror 103, and the light passing through the mirror 103 is focused to a spot on the photosensitive element 104. Thereby obtaining an inverted image of the object 101. The lens 103 is composed of a plurality of curves of different curvatures, such as a first sub-lens 1 and a second sub-lens 2, and the lens 103 can rotate and translate. The focal length F2 is obtained by rotating the lens 103 to obtain a cambered surface 2 with proper curvature and translating the distance B2 of the lens 103, and the focal point of the F2 is just on the photosensitive element 104, so that the focal length of the refracted light just falls on the photosensitive element 104 to obtain the clearest image.

Zooming is achieved by rotating the mirror 103, focusing is achieved by translating the mirror 103, and finally the focus is always on the photosensitive element 104, so that the clearest image is obtained.

FIG. 5 is a schematic left side view of imaging of a close-up object; imaging a left view of a close-distance object, and assuming that the first sub-lens 1 can focus to obtain a clear image;

FIG. 6 is a schematic left side view of remote object imaging; the distant object is imaged to the left view, and the second sub-lens 2 is assumed to be focused to obtain a clear image.

The lens and the sub-lens can be a structure with a convex lens function formed by a medium such as glass, acrylic, water or oil. As long as both sides are convex with curvature and have focusing function, the medium can be any transparent material.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A zoom configuration, characterized by:

the lens comprises a lens (103) arranged between a light hole (102) and a photosensitive element (104), wherein the lens (103) is provided with a plurality of sub-lenses with different curvatures; one sub-lens is positioned on an optical path diagram between the light hole (102) and the photosensitive element (104) by adjusting the lens (103); clear images are obtained by adjusting the distance from the lens (103) to the light hole (102);

this structure obtains different focuses through changing the sub-lens, satisfies different distances object emission light and forms an image on photosensitive chip behind the sub-lens.

2. A zoom structure according to claim 1, wherein: the lens (103) is an assembly, or the lens (103) is a part on which lenses of different curvatures are provided.

3. A zoom structure according to claim 1, wherein: the number of the sub-lenses is two to eight.

4. A zoom structure according to claim 1, wherein: the sub-lens is changed by rotating or moving.

5. A zoom structure according to claim 1, wherein: the sub-lenses are arranged in a ring shape or a linear shape or a fan shape.

6. A zoom structure according to claim 1, wherein: the sub-lens shape is circular or rectangular.

7. A zoom structure according to claim 1, wherein: the sub-lens is a structure with a convex lens function formed by glass, acrylic, water or oil.