CN211348811U - Lens structure and imaging terminal - Google Patents

Abstract

The utility model provides a camera lens structure and imaging terminal, including the lens cone that has accommodation space and install the lens group in the lens cone, the lens group includes first lens, and first lens is provided with the extinction layer with absorbed light including pasting the first surface of establishing at the lens cone inside wall between first surface and the lens cone inside wall. The utility model discloses a set up the extinction layer between first surface and lens cone inside wall, will shoot the most light absorption at the first surface through the extinction layer, play the effect that prevents light reflection, and then prevent to produce halo or flare, influence the imaging.

Description

Lens structure and imaging terminal

[ technical field ] A method for producing a semiconductor device

The utility model relates to an optical imaging technical field relates to a camera lens structure and imaging terminal especially.

[ background of the invention ]

With the development of imaging technology and the widespread use of electronic products with camera functions, optical lens structures are widely used in various fields of life.

The lens structure in the prior art comprises a lens barrel and a lens group arranged in the lens barrel, and because of reflection at the edge of the lens in the lens group, halos or flares are easily generated to influence the imaging effect.

Therefore, it is necessary to provide a new lens structure to solve the above-mentioned drawbacks.

[ Utility model ] content

An object of the utility model is to provide a camera lens structure and imaging terminal can prevent or reduce the production of halo or flare, and the imaging effect is better.

The technical scheme of the utility model as follows: the lens structure comprises a lens barrel with an accommodating space and a lens group arranged in the lens barrel, wherein the lens group comprises a first lens, the first lens comprises a first surface attached to the inner side wall of the lens barrel, and an extinction layer is arranged between the first surface and the inner side wall of the lens barrel to absorb light.

As an improvement, a placing groove for placing the extinction layer is formed between the first surface and the inner side wall of the lens barrel.

As a refinement, the placement groove is an annular groove.

As a refinement, the placement groove is formed on the first lens extending inwardly around the first surface.

As an improvement, the placing groove is formed on the lens barrel and extends around the inner side wall of the lens barrel to the outer wall of the lens barrel.

As an improvement, the lens barrel is provided with an injection groove for communicating the placing groove with the outside, and the injection groove is used for injecting a delustering material into the placing groove to form the delustering layer.

As a refinement, the lens set further includes a second lens stacked on the side of the first lens facing the object side.

As an improvement, a light shielding sheet is arranged between the first lens and the second lens.

As an improvement, the optical axis of the lens group and the central axis of the lens barrel are collinear.

The utility model also provides an imaging terminal, include a camera lens structure as in any one of the above embodiments.

The beneficial effects of the utility model reside in that: the extinction layer is arranged between the first surface and the inner side wall of the lens barrel, and most of light emitted to the first surface is absorbed through the extinction layer, so that the effect of preventing light reflection is achieved, and further, the phenomena of halation or flare and influence on an imaging effect are prevented.

[ description of the drawings ]

Fig. 1 is a schematic view of the overall structure of the lens structure of the present invention;

fig. 2 is an exploded schematic view of the lens structure of the present invention;

fig. 3 is a schematic cross-sectional structure diagram of the lens structure of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic structural view of the lens barrel of the present invention;

fig. 6 is a schematic structural view of the imaging terminal of the present invention;

in the figure: 1. an imaging terminal; 10. a lens structure; 11. a terminal body; 100. a lens barrel; 110. an injection tank; 120. a limiting groove; 200. a lens group; 210. a first lens; 211. a first surface; 220. a second lens; 300. and (6) placing the groove.

[ detailed description ] embodiments

The present invention will be further described with reference to the accompanying drawings and embodiments.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the embodiment of the present invention includes a lens barrel 100 having a receiving space and a lens group 200 installed in the lens barrel 100, the lens group 200 includes a first lens 210, the first lens 210 includes a first surface 211, and the surface of the first lens 210 contacting with the inner wall of the lens barrel 100 is defined as the first surface 211, the lens structure 10 of the present invention further includes an extinction layer between the first surface 211 and the lens barrel 100, the extinction layer can absorb light, through the extinction layer can prevent the first surface 211 of the first lens 210 from reflecting, and further prevent the first lens 210 from forming halo or flare when imaging, and further enable the imaging effect of the lens structure 10 of the present invention to be better.

It should be noted that, the shape of the lens barrel 100 is not limited, and may be a cylinder, a prism, or other shapes, and in the embodiment of the present invention, the cylinder is preferred, which is convenient for production and is convenient for installation and matching with other components.

As shown in fig. 3 and 4, in the embodiment of the present invention, a placing groove 300 is provided between the first surface 211 of the first lens 210 and the inner wall of the lens barrel 100, and the placing groove 300 is used for placing the extinction layer. The extinction layer can be stably and conveniently placed through the placing groove 300.

In some embodiments, the placing groove 300 may be formed on the first lens 210 by extending inward from the first surface 211, preferably, the placing groove 300 is an annular groove surrounding the first surface 211, that is, the annular groove is formed on a side wall where the first lens 210 and the lens barrel 100 are installed in a matching manner, a width of the placing groove 300 is smaller than a thickness of the first lens 210 along the optical axis direction, and the placing groove 300 according to an embodiment of the present invention is convenient to process.

In some embodiments, the placing groove 300 may be formed on the lens barrel 100 by extending from the inner side wall of the lens barrel 100 to the outer side wall of the lens barrel 100, preferably, the placing groove 300 is an annular groove surrounding the first surface 211, and the width of the placing groove 300 is smaller than the thickness of the first lens 210 along the optical axis direction, which is convenient for processing the placing groove 300 according to the embodiment of the present invention.

In some embodiments, the placement groove 300 may be formed by a first groove formed on a side wall of the first lens 210 and a second groove formed on an inner side wall of the lens barrel 100 matched with the side wall of the first lens 210, and widths of the first groove and the second groove are smaller than a thickness of the first lens 210 in the optical axis direction.

The extinction layer is made by black material, can absorb light, forms halo or flare when preventing to form images, certainly, the embodiment of the utility model provides a extinction layer also can be made by other materials that can extinction. The extinction layer can absorb light, prevent reflection of light, and further prevent generation of halation or flare, and the imaging effect is good, and in addition, the extinction layer can limit relative sliding between the first lens 210 and the lens barrel 100 to a certain extent.

Referring to fig. 1-5, preferably, the matte layer is a fluid, i.e., a liquid or a solid that can flow, or is formed by the immobilization of a plurality of fine particles. Preferably, the extinction layer is made of a liquid material, when the extinction layer is made of a liquid, the lens barrel 100 in the embodiment of the invention is provided with the injection groove 110, the injection groove 110 can communicate the placing groove 300 with the outside, the injection groove 110 can inject the fluid material for making the extinction layer into the placing groove 300 and solidify the extinction layer, and the injection groove 110 can conveniently place the extinction layer in the placing groove 300, so that the installation is convenient and rapid.

In some embodiments, the extinction layer is a solid, the extinction layer is installed in the placement groove 300 before the first lens 210 is assembled in the lens barrel 100, and then the first lens 210 is assembled on the lens barrel 100.

In some embodiments, the matte layer is a paint, the matte layer is coated on the first surface 211 before the first lens 210 is assembled in the lens barrel 100, and then the first lens 210 is mounted on the lens barrel 100.

It should be noted that the shape of the injection groove 110 is not limited, and the injection groove 110 is preferably a cylindrical through hole, and when the lens barrel 100 is provided with the injection groove 110, the placement groove 300 is preferably an annular groove structure, so as to facilitate the material flow of the extinction layer. It should be noted that, when the placement grooves 300 are multiple and relatively not connected, each placement groove 300 has at least one injection groove 110 for injecting the extinction layer into each placement groove 300.

As shown in fig. 2 and fig. 3, the lens assembly 200 further includes a second lens 220, a limiting groove 120 is formed at an end of the inner side of the lens barrel 100 close to the object side, the second lens 220 is mounted in the limiting groove 120, and a surface of the first lens 210 close to the object side abuts against a surface of the second lens 220 close to the image side.

In this embodiment, the object side refers to a side close to an object to be photographed when photographing or imaging, and the image side refers to a side far from the object to be photographed when photographing or imaging.

The first lens 210 and the second lens 220 are both cylindrical, and the diameter of the first lens 210 is larger than that of the second lens 220.

A light shielding sheet is disposed between the first lens 210 and the second lens 220, and preferably, the light shielding sheet is annular and located at an edge of the first lens 210. Through the anti-dazzling screen can prevent the production of halo or flare effectively, with extinction layer cooperation further eliminates halo or flare, makes the utility model discloses the imaging effect is better.

It should be noted that, the number of the lenses included in the lens group 200 in the embodiment of the present invention is not limited, and the lens group may further include a third lens, a fourth lens, and the like, and preferably, the third lens and the fourth lens are disposed between the first lens 210 and the second lens 220, that is, the first lens 210 is preferably disposed closest to the image side among all the lenses. It should be noted that, in the lens group 200, other lenses besides the first lens 210 may also have a placing groove 300 for placing the extinction layer on a side wall thereof that is matched with the inner side wall of the lens barrel 100, and correspondingly, the lens barrel 100 is provided with an injection groove 110 that is communicated with the placing groove 300, and of course, the embodiment of the present invention may also directly surround the extinction layer on the outer surface of the side wall of the lens. It should be noted that when the lens set 200 includes a plurality of lenses, a light shielding plate is preferably disposed between the lenses.

As shown in fig. 1, 2 and 3, the optical axis of the lens group 200 and the central axis of the lens barrel 100 are collinear. That is, the structure formed by the lens group 200 and the lens barrel 100 is a symmetrical structure, so as to facilitate the control of the installation accuracy of the lens group 200 and the lens barrel 100.

As shown in fig. 6, the embodiment of the present invention further provides an imaging terminal 1, where the imaging terminal 1 includes the lens structure 10 and the terminal body 11 in any of the above embodiments, the belonging lens structure 10 is installed on the belonging terminal body 11, and the imaging terminal 1 may be a video camera, a still camera, a mobile terminal with a camera function, or the like. The utility model discloses imaging terminal 1's formation of image effect is better.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims (10)

1. A lens structure is characterized by comprising a lens barrel with an accommodating space and a lens group arranged in the lens barrel, wherein the lens group comprises a first lens, the first lens comprises a first surface attached to the inner side wall of the lens barrel, and a light extinction layer is arranged between the first surface and the inner side wall of the lens barrel to absorb light.

2. A lens structure according to claim 1, characterized in that: a placing groove for placing the extinction layer is formed between the first surface and the inner side wall of the lens barrel.

3. A lens structure according to claim 2, characterized in that: the placing groove is an annular groove.

4. A lens structure according to claim 2, characterized in that: the placement groove is formed on the first lens extending inward around the first surface.

5. A lens structure according to claim 2, characterized in that: the placing groove surrounds the inner side wall of the lens barrel and extends towards the outer wall of the lens barrel to be formed on the lens barrel.

6. A lens structure according to any one of claims 2 to 5, characterized in that: the lens barrel is provided with an injection groove which enables the placing groove to be communicated with the outside, and the injection groove is used for injecting extinction materials into the placing groove to form the extinction layer.

7. A lens structure according to any one of claims 1 to 5, characterized in that: the lens group also comprises a second lens which is superposed on the side, facing the object side, of the first lens.

8. A lens structure according to claim 7, wherein: and a shading sheet is arranged between the first lens and the second lens.

9. A lens structure according to any one of claims 1 to 5, characterized in that: the optical axis of the lens group and the central axis of the lens barrel are in the same straight line.

10. An imaging terminal, characterized by: comprising a lens structure as claimed in any one of the preceding claims 1-9.

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