CN112363362A

CN112363362A - Imaging lens cover and optical lens assembly

Info

Publication number: CN112363362A
Application number: CN202011345438.5A
Authority: CN
Inventors: 梁钦
Original assignee: Shenzhen Mingjiang Optical Technology Co ltd
Current assignee: Shenzhen Mingjiang Optical Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-02-12

Abstract

The invention discloses an imageable lens cover and an optical lens assembly comprising the same. The imaging lens cover comprises a cylindrical side wall and a top cover, wherein a cavity is defined by the cylindrical side wall and the top cover, the cavity is provided with a light inlet opening opposite to the top cover, a reflector is arranged in the cavity, and the cylindrical side wall is provided with a window opening; the reflector and the axis of the cylindrical side wall form an included angle. When the imaging lens cover is used, the imaging lens cover covers one end of the optical lens, light penetrates through the optical lens and then enters through the light inlet opening, the reflector reflects the light entering from the light inlet opening and then exits from the window opening, and therefore a user can see images in the area opposite to the camera at the window opening. In addition, the user can also control the image at the opening of the window by adjusting the focus ring on the lens, thereby achieving the purpose of experiencing the lens.

Description

Imaging lens cover and optical lens assembly

Technical Field

The invention relates to the field of photographic equipment, in particular to an imageable lens cover and an optical lens assembly comprising the same.

Background

An optical lens is an important component of a camera, and a lens in the optical lens is an important element of the optical lens.

When a user purchases an optical lens, the user can only try the optical lens by installing the optical lens on a camera. This requires that the user must carry the camera to be able to purchase the optical lens, which is inconvenient.

The traditional lens cover only plays a role in protecting the optical lens, and the problems cannot be solved.

Disclosure of Invention

Based on this, there is a need for an imageable lens cover that can solve the above-mentioned problems.

It is also desirable to provide an optical lens assembly including the above-described imageable lens cover.

An imageable lens cap comprises a cylindrical side wall and a top cover, wherein the cylindrical side wall and the top cover enclose a cavity, the cavity is provided with a light inlet opening opposite to the top cover, a reflector is arranged in the cavity, and the cylindrical side wall is provided with a window opening;

the reflector and the axis of the cylindrical side wall form an included angle, and the reflector reflects light rays emitted from the light inlet opening and then emits the light rays from the window opening.

An optical lens assembly comprises an optical lens and the imageable lens cover which is covered at one end of the optical lens.

When the imaging lens cover is used, the imaging lens cover covers one end of the optical lens, light penetrates through the optical lens and then enters through the light inlet opening, the reflector reflects the light entering from the light inlet opening and then exits from the window opening, and therefore a user can see images in the area opposite to the camera at the window opening.

The lens cover capable of imaging can provide images of the area over against the camera at the window opening when a user does not carry the camera, so that convenience is brought to the user for selecting the lens. And the user can also control the image at the opening of the window by adjusting the focus ring on the lens, thereby achieving the purpose of experiencing the lens.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

fig. 1 is a schematic structural diagram of an imageable lens cover according to an embodiment.

Fig. 2 is a structural schematic diagram of another direction of the imageable lens cover shown in fig. 1.

Fig. 3 is a structural diagram of the imageable lens cover shown in fig. 1 in still another direction.

Fig. 4 is a schematic cross-sectional view of the imageable lens cover shown in fig. 2 taken along direction a-a.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The imageable lens cap of one embodiment as shown in fig. 1, 2, 3, and 4 includes a cylindrical sidewall 10 and a top cover 20, the cylindrical sidewall 10 and the top cover 20 enclose a cavity, the cavity has a light inlet opening 12 opposite to the top cover 20, a reflector 30 is disposed in the cavity, and a window opening 14 is disposed on the cylindrical sidewall 10.

The reflector 30 forms an included angle with the axis of the cylindrical sidewall 10, and the reflector 30 reflects the light entering from the light entrance opening 12 and then exits from the window opening 14.

When the lens cover capable of imaging is used, the lens cover is covered at one end of the optical lens, and with reference to fig. 4, light penetrates through the optical lens and then enters through the light inlet opening 12, the reflector 30 reflects the light entering from the light inlet opening 12 and then exits from the window opening 14, so that a user can see an image of a region opposite to the camera at the window opening 14.

The lens cover can provide images of the area directly opposite to the camera at the window opening 14 when a user does not carry the camera, so that convenience is brought to the user for selecting the lens. And the user can also control the image at the window opening 14 by adjusting the focus ring on the lens, thereby achieving the purpose of experiencing the lens.

Note that, in fig. 4, a dotted line with an arrow indicates a direction of light.

Preferably, the angle between the reflector 30 and the axis of the cylindrical sidewall 10 is 40 ° to 50 °.

More preferably, the angle between the reflector 30 and the axis of the cylindrical sidewall 10 is 44 ° to 46 °.

In particular, it will be appreciated by those skilled in the art that the angle between the mirror 30 and the axis of the cylindrical sidewall 10 is 45 ° for best imaging, but is slightly off-set and does not have much effect.

In the present embodiment, the cylindrical sidewall 10 is cylindrical and is adapted to an optical lens.

In the present embodiment, the reflecting mirror 30 is a plane mirror.

With reference to the figures, in the present embodiment, a transparent plate 40 is preferably disposed at the window opening 14.

It is apparent that the angle between the transparent plate 40 and the reflecting mirror 30 is also 44 deg. to 46 deg..

The transparent plate 40 is disposed at the window opening 14, so that the light reflected by the reflector 30 can be imaged on the transparent plate 40, thereby further improving the user experience.

Since the lenses of the optical lens are all round, the reflected light forms a round image on the transparent plate 40.

Normally, however, the display interface of the camera is generally rectangular, which results in an imaging experience through the imageable lens cover that is too different from that of the camera.

In order to solve the above problem, in the present embodiment, one surface of the transparent plate 40 close to the cavity is a frosted glass surface, and one surface of the transparent plate 40 far from the cavity is a smooth surface.

One surface of the transparent plate 40 close to the cavity is a frosted glass surface, so that light rays are diffusely reflected on the frosted glass surface, and an image filled with the smooth surface is formed on the smooth surface.

Further, in the present embodiment, the transparent plate 40 has a rectangular shape. Thus, the image formed by the light of the transparent lens on the transparent plate 40 is rectangular.

In the present embodiment, the transparent plate 40 is a glass plate. In other embodiments, the transparent plate 40 may be made of other materials.

With reference to the drawings, in the present embodiment, a snap structure 16 is disposed on an inner side of one end of the cylindrical sidewall 10 away from the top cover 20.

The snap-fit structure 16 allows the imageable lens cover to be secured to one end of the optical lens.

In this embodiment, there are four snap structures 16. In other embodiments, the number of the snap structures 16 can be set according to actual requirements.

In the present embodiment, with reference to the drawings, the side wall of the window opening 14 facing away from the cavity is formed with a beveled chamfer 18. The beveled chamfer 18 may improve the tactile feel of the user and avoid scratching or snagging.

In other embodiments, the bevel chamfer 18 may be formed in an arc-like chamfer.

The invention also discloses an optical lens assembly, which comprises an optical lens and the imageable lens cover arranged at one end of the optical lens in a covering manner.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An imageable lens cap is characterized by comprising a cylindrical side wall and a top cap, wherein the cylindrical side wall and the top cap enclose a cavity, the cavity is provided with a light inlet opening opposite to the top cap, a reflector is arranged in the cavity, and the cylindrical side wall is provided with a window opening;

2. The imageable lens cover of claim 1, wherein said reflector comprises an angle of 40 ° to 50 ° with the axis of said cylindrical sidewall.

3. The imageable lens cover of claim 2, wherein said reflector comprises an angle of 44 ° to 46 ° with the axis of said cylindrical sidewall.

4. The imageable lens cover of claim 2, wherein said mirror is a flat mirror.

5. The lens cover of any one of claims 1 to 4, wherein a transparent plate is disposed at the window opening.

6. The imageable lens cover of claim 5, wherein a side of said transparent plate that is proximal to said cavity is a frosted glass surface and a side of said transparent plate that is distal to said cavity is a smooth surface.

7. The imageable lens cover of claim 6, wherein said transparent plate is rectangular.

8. The imageable lens cover of claim 7, wherein said transparent plate is a glass plate.

9. The imageable lens cover of claim 6, wherein a snap-fit structure is provided on an inner side of an end of said cylindrical sidewall away from said top cover;

and one side of the side wall of the window opening, which is far away from the cavity, forms an inclined plane chamfer or an arc chamfer.

10. An optical lens assembly comprising an optical lens and an imageable lens cover as claimed in any of claims 1 to 9 covering one end of the optical lens.