CN212009236U

CN212009236U - Camera lens

Info

Publication number: CN212009236U
Application number: CN202020534467.5U
Authority: CN
Inventors: 于洋; 刘胜强; 牛钰莹
Original assignee: Suzhou Zhixin Konglian Information Technology Co ltd
Current assignee: Suzhou Zhixin Konglian Information Technology Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-11-24
Anticipated expiration: 2030-04-13

Abstract

The utility model provides a camera lens, which comprises a circuit board, a photosensitive element is arranged on the circuit board, a base is arranged on the outer side of the photosensitive element on the circuit board, a light filter is arranged on the base and consists of a first light filter and a second light filter, a lens barrel is in threaded connection above the light filter on the base, an optical lens group is arranged in the lens barrel and comprises an aspheric surface protective mirror, an iris lens, a first plastic lens, a light gathering channel and a second plastic lens which are arranged in sequence from an object space to an image space, the incident surface of the first plastic lens is provided with a mounting groove, the iris lens is arranged in the mounting groove, the incident surface of the iris lens is covered by the aspheric surface protective mirror, gaskets are arranged between the peripheral part of the aspheric surface protective mirror and the inner wall of the lens barrel as well as between the first plastic lens, the emergent surface of the first plastic lens is connected with the incident surface of, the front end of the lens cone is provided with a lens cover, the center of the lens cover is provided with a lens, and the lens cover is also provided with a light supplementing mechanism.

Description

Camera lens

Technical Field

The utility model relates to a camera technical field especially relates to a camera lens.

Background

With the development and progress of the times, the camera is gradually widely used; although the variety of cameras is wide, all cameras work on the principle of converting an optical image signal into an electrical signal for storage or transmission; although the video camera is widely used, most of the existing video cameras cannot clearly show objects in bad weather such as external environment quality reduction or haze and the like, and the shooting effect of the camera lens is influenced.

Disclosure of Invention

The utility model discloses just to above technical problem, provide a camera lens.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a camera lens comprises a circuit board and is characterized in that a photosensitive element electrically connected with the circuit board is arranged on the circuit board, a base is arranged on the outer side of the photosensitive element on the circuit board, a light filter is arranged on the base and consists of a first light filter and a second light filter which are oppositely arranged from left to right, a hollow lens barrel is in threaded connection above the light filter on the base, an optical lens group is arranged in the lens barrel, the light filter and the photosensitive element are arranged on an optical axis of the optical lens group, the optical lens group comprises an aspheric surface protective mirror, an iris lens, a first plastic lens, a light gathering channel and a second plastic lens which are sequentially arranged from an object side to an image side, an incident surface of the first plastic lens is provided with a mounting groove, the iris lens is arranged in the mounting groove, the incident surface of the iris lens is covered by the aspheric surface protective mirror, and gaskets are arranged between the peripheral part of the aspheric surface protective mirror, the emergent surface of the first plastic lens is connected with the incident surface of the second plastic lens through the light gathering channel, the front end of the lens barrel is provided with a lens cover, the center of the lens cover is provided with a lens, and the lens cover is further provided with a light supplementing mechanism for supplementing light.

One side that the lens cap is close to the base is equipped with a plurality of inserted bars, be equipped with on the base a plurality ofly with inserted bar assorted slot, and the contact department of inserted bar and slot is equipped with the sealed pad of elasticity rubber.

The light filling mechanism is equipped with a plurality of light filling LED lamps including setting up on the preceding terminal surface of lens cap, and a plurality of light filling LED lamps equidistance encircle lens and distribute.

A boss is formed on the inner wall of the base, and the optical filter is placed on the boss.

And cushion blocks are arranged among the first plastic lens, the light gathering channel and the second plastic lens.

The emergent surface of the first plastic lens and the incident surface of the second plastic lens are arc convex surfaces which are oppositely arranged.

Compared with the prior art, the beneficial effects of the utility model are that: the aspheric surface protective mirror and the rear group of lenses arranged in the utility model jointly correct the off-axis aberration, thereby realizing that the whole field of view of the optical lens system has excellent resolution, and the visual angle can reach more than 145 degrees by using the pictures shot by the lens; the arranged iris lens can automatically adjust the intensity of light received by the camera, so that the camera can normally shoot under the conditions of weak light and dark light; the first optical filter, the second optical filter and the light supplementing mechanism are arranged, so that the camera can normally shoot under the haze condition at night, and the practicability of the camera is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1. a lens barrel; 2. a lens cover; 3. a lens; 4. a circuit board; 5. a photosensitive element; 6. a base; 7. a boss; 8. an aspheric protective mirror; 9. an iris mirror; 10. a first plastic lens; 11. a light gathering channel; 12. a second plastic lens; 13. a gasket; 14. a first optical filter; 15. a second optical filter; 16. inserting a rod; 17. light filling LED lamp.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in FIG. 1, a camera lens comprises a circuit board 4, a photosensitive element 5 electrically connected to the circuit board 4 is arranged on the circuit board 4, a base 6 is arranged on the outer side of the photosensitive element 5 on the circuit board 4, an optical filter is arranged on the base 6, and the optical filter is composed of a first optical filter 14 and a second optical filter 15 which are oppositely arranged on the left and right, a lens barrel 1 with a hollow inner part is connected with the upper part of the optical filter on the base 6 in a threaded manner, an optical lens group is arranged in the lens barrel 1, the optical filter and the photosensitive element 5 are arranged on the optical axis of the optical lens group, the optical lens group comprises an aspheric surface protective mirror 8, an iris mirror 9, a first plastic lens 10, a light gathering channel 11 and a second plastic lens 12 which are arranged in sequence from the object side to the image side, an installation groove is arranged on the incident surface of the first plastic lens 10, the iris mirror 9 is arranged, gaskets 13 are arranged between the periphery of the aspheric surface protective mirror 8 and the inner wall of the lens barrel 1 and between the first plastic lens 10, the emergent surface of the first plastic lens 10 is connected with the incident surface of the second plastic lens 12 through a light-gathering channel 11, a lens cover 2 is arranged at the front end of the lens barrel 1, a lens 3 is arranged in the center of the lens cover 2, and a light supplementing mechanism for supplementing light is further arranged on the lens cover 2.

One side that lens cap 2 is close to base 6 is equipped with a plurality of inserted bars 16, is equipped with a plurality of slots with inserted bar 16 assorted on the base 6, and the contact department of inserted bar 16 and slot is equipped with the sealed pad of elasticity rubber.

The light filling mechanism is equipped with a plurality of light filling LED lamps 17 including setting up on the preceding terminal surface of lens cap 2, and 19 equidistance of a plurality of light filling LED lamps encircle lens 3 and distribute.

A boss 7 is formed on the inner wall of the base 6, and the optical filter is placed on the boss 7.

And cushion blocks are arranged among the first plastic lens 10, the light gathering channel 11 and the second plastic lens 12.

The exit surface of the first plastic lens 10 and the entrance surface of the second plastic lens 12 are arc convex surfaces which are oppositely arranged.

When the utility model is used, according to the optical design principle, the aspheric surface protective mirror 8 bears the larger focal power of the whole optical lens system, so that the included angle between the light and the optical axis is rapidly reduced after the off-axis light beam passes through the front group of lenses, and the off-axis aberration is corrected by adopting the aspheric surface protective mirror 8 and the rear group of lenses together, thereby realizing that the optical lens system has excellent resolution ratio in the full view field range, and the visual angle can reach more than 145 degrees by using the photos shot by the lens; the first plastic lens 10 and the second plastic lens 12 can effectively reduce the optical distortion to be within 22%; the iris lens 9 can automatically adjust the intensity of light received by the camera, so that the camera can shoot normally under the conditions of weak light and dark light; the first optical filter 14 that sets up can let 500-600 nm's visible light all pass through, and the second optical filter 15 that sets up can let 780-900 nm's infrared light all pass through to make the camera still can continue to use when bad weather such as haze, realized penetrating the fog function, combine the light filling mechanism that sets up to realize night vision's function, realize the shooting under the haze condition at night, increased the practicality of camera.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. A camera lens comprises a circuit board (4) and is characterized in that a photosensitive element (5) electrically connected with the circuit board (4) is arranged on the circuit board (4), a base (6) is arranged on the outer side of the photosensitive element (5) on the circuit board (4), an optical filter is arranged on the base (6) and consists of a first optical filter (14) and a second optical filter (15) which are oppositely arranged from left to right, a lens barrel (1) with a hollow inner part is connected with the upper part of the optical filter on the base (6) in a threaded manner, an optical lens group is arranged in the lens barrel (1), the optical filter and the photosensitive element (5) are arranged on an optical axis of the optical lens group, the optical lens group comprises an aspheric surface protective lens (8), an iris lens (9), a first plastic lens (10), a light gathering channel (11) and a second plastic lens (12) which are sequentially arranged from an object side to an image side, and an installation groove is formed in, the iris lens (9) is arranged in the mounting groove, the incident surface of the iris lens (9) is covered by the aspheric protective lens (8), a gasket (13) is arranged between the periphery of the aspheric protective lens (8) and the inner wall of the lens barrel (1) and between the inner wall of the first plastic lens (10), the emergent surface of the first plastic lens (10) is connected with the incident surface of the second plastic lens (12) through a condensation channel (11), the front end of the lens barrel (1) is provided with the lens cover (2), the center of the lens cover (2) is provided with the lens (3), and the lens cover (2) is further provided with a light supplementing mechanism for supplementing light.

2. A camera lens according to claim 1, characterized in that a plurality of insertion rods (16) are arranged on one side of the lens cover (2) close to the base (6), a plurality of insertion slots matched with the insertion rods (16) are arranged on the base (6), and an elastic rubber gasket is arranged at the contact positions of the insertion rods (16) and the insertion slots.

3. The camera lens according to claim 1, wherein the light supplement mechanism comprises a plurality of light supplement LED lamps (17) disposed on the front end surface of the lens cover (2), and the plurality of light supplement LED lamps (17) are equidistantly distributed around the lens (3).

4. A camera lens according to claim 3, characterized in that the base (6) is formed with a boss (7) on its inner wall, and the filter is placed on the boss (7).

5. A camera lens according to claim 1, characterized in that a spacer is provided between the first plastic lens (10), the light focusing channel (11) and the second plastic lens (12).

6. A camera lens according to claim 1, characterized in that the exit surface of the first plastic lens (10) and the entrance surface of the second plastic lens (12) are arcuate convex surfaces arranged opposite each other.