CN218974625U

CN218974625U - Three-layer lens for camera

Info

Publication number: CN218974625U
Application number: CN202223502352.6U
Authority: CN
Inventors: 陈彦中; 陈彦君; 蔡宜霖
Original assignee: Dongguan Yiguan Plastic Hardware Electronic Co ltd
Current assignee: Dongguan Yiguan Plastic Hardware Electronic Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-05
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a three-layer lens for a camera, which comprises a lens main body, wherein the surface of the lens main body is provided with a grain surface structure, the interior of the grain surface structure consists of a first light condensation area, a second light condensation area, a third light condensation area, a fourth light condensation area, a fifth light condensation area, a sixth light condensation area, a seventh light condensation area and an eighth light condensation area, and the grain surface structure is respectively provided with a first layer of lens, a second layer of lens and a third layer of lens. The lens is of a three-layer design and is formed by combining 16 Fresnel lines, two sides of the lens are symmetrical, the two-side line areas are large and divided into two layers, so that the lens is favorable for absorbing large-angle energy, the space between the two side lines of the lens is enough, and the lens with large angle and long distance can be achieved, so that the lens can be more sensitive to the transverse movement of an object.

Description

Three-layer lens for camera

Technical Field

The utility model relates to the technical field of camera lenses, in particular to a three-layer lens for a camera.

Background

The Fresnel human body infrared sensing lens is an indispensable accessory for the display function of intelligent household products such as cameras, video cameras and the like; the intelligent household product monitoring device has the effects of collecting infrared light emitted by an external human body, and focusing the infrared light onto the surface of the sensor so that intelligent household products such as cameras and cameras can detect the infrared light emitted by the human body when the human body moves, and then starting and capturing images.

The utility model provides a chinese patent document is granted to publication No. CN216449778U discloses a fresnel line lens for smart camera, includes the casing, locates the condensing lens line of casing, the casing is including the installation outer edge, an organic whole is connected in the fixed outer edge of installation outer edge, and locates the fixed outer edge and the protruding U type shell that sets up downwards, the bottom surface of U type shell is located to the condensing lens line, the condensing lens line includes first spotlight district, and the second spotlight district of symmetric distribution in first spotlight district both sides. The utility model adopts the Fresnel pattern lens, the shell is installed and fixed through the matching structure of the installation outer edge and the fixed outer edge, the U-shaped shell is used for installing the sensor, and the sensor is matched with the condensing pattern for sensing detection, so that the sensing range is large, and the structure is simple and reliable.

The lens in the prior art has small grain area, cannot absorb large-angle energy, has small lens angle and short distance, and therefore, needs to develop a three-layer lens for a camera.

Disclosure of Invention

The utility model aims to provide a three-layer lens for a camera, which solves the problems that the prior art provided in the background art is small in lens grain area, incapable of absorbing large-angle energy, small in lens angle and short in distance.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a three-layer lens for camera, includes the lens main part, the surface of lens main part is provided with the line face structure, and the inside of line face structure is by first spotlight district, second spotlight district, third spotlight district, fourth spotlight district, fifth spotlight district, sixth spotlight district, seventh spotlight district and eighth spotlight district constitute jointly, be provided with first layer lens, second floor lens and third layer lens on the line face structure respectively.

Preferably, the thickness of the lens body is 0.5-0.8mm.

Preferably, the surface of the lens main body is provided with an arc chamfer structure.

Preferably, the horizontal detection angle of the lens main body in the overlooking state is 110-120 degrees, and the detection distance is 7-10 meters; the detection distance of the lens main body in the side view state is 7-10 meters, and the vertical angle is about 45 degrees.

Preferably, the first light condensation area, the second light condensation area, the third light condensation area, the fourth light condensation area, the fifth light condensation area, the sixth light condensation area, the seventh light condensation area and the eighth light condensation area are respectively provided with two light condensation areas, and are symmetrically and uniformly distributed on the surface of the grain surface structure.

Preferably, the width dimension of the first light gathering area is 14.69+/-0.5 mm, and the height dimension is 9.44+/-0.5 mm; the width dimension of the second light condensation area is 13.48 plus or minus 0.5mm, and the height dimension is 8.14 plus or minus 0.5mm; the width dimension of the third light condensation area is 4.5 plus or minus 0.5mm, and the height dimension is 7.16 plus or minus 0.5mm; the width dimension of the fourth light condensation area is 4.5+/-0.5 mm, and the height dimension is 5.84+/-0.5 mm; the width dimension of the fifth light condensation area is 4.5 plus or minus 0.5mm, and the height dimension is 4.73 plus or minus 0.5mm; the width dimension of the sixth light condensation area is 4+/-0.5 mm, and the height dimension is 7.16+/-0.5 mm; the width dimension of the seventh light condensation area is 4+/-0.5 mm, and the height dimension is 5.84+/-0.5 mm; the width dimension of the eighth light condensation area is 4+/-0.5 mm, and the height dimension is 4.87+/-0.5 mm.

Compared with the prior art, the utility model has the beneficial effects that:

the lens is of a three-layer design and is formed by combining 16 Fresnel lines, two sides of the lens are symmetrical, the two-side line areas are large and divided into two layers, so that the lens is favorable for absorbing large-angle energy, the space between the two side lines of the lens is enough, and the lens with large angle and long distance can be achieved, so that the lens can be more sensitive to the transverse movement of an object.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the surface distribution structure of the textured structure of the present utility model;

FIG. 3 is a top view of a detection region according to the present utility model;

FIG. 4 is a side view of a detection area of the present utility model.

In the figure: 1. a lens body; 2. an arc chamfer structure; 3. a textured surface structure; 4. a second layer lens; 5. a third layer lens; 6. a first layer lens; 7. a first light-condensing region; 8. a third light-condensing region; 9. a sixth light-condensing region; 10. a seventh light-condensing region; 11. a second light condensing region; 12. a fourth light-condensing region; 13. a fifth light-condensing region; 14. and an eighth light-condensing region.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the utility model provides a three-layer lens for camera, includes lens main part 1, and the surface of lens main part 1 is provided with line face structure 3, and the inside of line face structure 3 is by first spotlight district 7, second spotlight district 11, third spotlight district 8, fourth spotlight district 12, fifth spotlight district 13, sixth spotlight district 9, seventh spotlight district 10 and eighth spotlight district 14 are constituteed jointly, be provided with first layer lens 6, second floor lens 4 and third layer lens 5 on the line face structure 3 respectively.

Further, the thickness of the lens body 1 is 0.5-0.8mm.

Further, the surface of the lens body 1 is provided with an arcuate chamfer structure 2.

Further, the horizontal detection angle of the lens main body 1 in the overlooking state is 110-120 degrees, and the detection distance is 7-10 meters; the detection distance of the lens body 1 in the side view is 7-10 m, and the vertical angle is about 45 degrees.

Further, the first light condensation area 7, the second light condensation area 11, the third light condensation area 8, the fourth light condensation area 12, the fifth light condensation area 13, the sixth light condensation area 9, the seventh light condensation area 10 and the eighth light condensation area 14 are respectively provided with two light condensation areas, and are symmetrically and uniformly distributed on the surface of the grain surface structure 3.

Further, the width dimension of the first light gathering section 7 is 14.69 + -0.5 mm, and the height dimension is 9.44 + -0.5 mm; the width dimension of the second light gathering area 11 is 13.48 plus or minus 0.5mm, and the height dimension is 8.14 plus or minus 0.5mm; the width dimension of the third light condensation area 8 is 4.5 plus or minus 0.5mm, and the height dimension is 7.16 plus or minus 0.5mm; the width dimension of the fourth light gathering area 12 is 4.5 plus or minus 0.5mm, and the height dimension is 5.84 plus or minus 0.5mm; the width dimension of the fifth light condensation area 13 is 4.5 plus or minus 0.5mm, and the height dimension is 4.73 plus or minus 0.5mm; the width dimension of the sixth light gathering area 9 is 4 plus or minus 0.5mm, and the height dimension is 7.16 plus or minus 0.5mm; the width dimension of the seventh condensation area 10 is 4 plus or minus 0.5mm, and the height dimension is 5.84 plus or minus 0.5mm; the eighth light-condensing region 14 has a width dimension of 4.+ -. 0.5mm and a height dimension of 4.87.+ -. 0.5mm.

Working principle: when the lens is used, the surface of the lens main body 1 is provided with a grain surface structure 3, the optical grain surface structure 3 (a separation line) is a region for human infrared sensing detection, mirror grains can not be seen from the front of a product, only the back of the product can be seen, the inside of the grain surface structure 3 is composed of a first light gathering region 7, a second light gathering region 11, a third light gathering region 8, a fourth light gathering region 12, a fifth light gathering region 13, a sixth light gathering region 9, a seventh light gathering region 10 and an eighth light gathering region 14, the inside of the lens main body 1 is composed of a first layer of lens 6, a second layer of lens 4 and a third layer of lens 5, the lenses in the lens main body 1 are of three-layer design, the lenses in the lens main body 1 are composed of 16 Fresnel grains, two sides of the lens are symmetrical, the two sides of the lens are large in grain area and divided into two layers, large-angle energy can be absorbed easily, the two sides of the lens are enough in mirror grain space, and large angles and long-distance lenses can be achieved, so that the lens can be more sensitive to transverse movement of an object.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a three-layer lens for camera, includes lens main part (1), its characterized in that, the surface of lens main part (1) is provided with line face structure (3), and the inside of line face structure (3) is by first spotlight district (7), second spotlight district (11), third spotlight district (8), fourth spotlight district (12), fifth spotlight district (13), sixth spotlight district (9), seventh spotlight district (10) and eighth spotlight district (14) constitutes jointly, be provided with first layer lens (6), second layer lens (4) and third layer lens (5) on line face structure (3) respectively.

2. The three-layer lens for a camera according to claim 1, wherein: the thickness of the lens main body (1) is 0.5-0.8mm.

3. The three-layer lens for a camera according to claim 1, wherein: the surface of the lens main body (1) is provided with an arc-shaped chamfer structure (2).

4. The three-layer lens for a camera according to claim 1, wherein: the horizontal detection angle of the lens main body (1) in the overlook state is 110-120 degrees, and the detection distance is 7-10 meters; the detection distance of the lens main body (1) in a side view state is 7-10 m, and the vertical detection angle is about 45 degrees.

5. The three-layer lens for a camera according to claim 1, wherein: the first light condensation area (7), the second light condensation area (11), the third light condensation area (8), the fourth light condensation area (12), the fifth light condensation area (13), the sixth light condensation area (9), the seventh light condensation area (10) and the eighth light condensation area (14) are respectively provided with two light condensation areas and are symmetrically and uniformly distributed on the surface of the grain surface structure (3).

6. The three-layer lens for a camera according to claim 1, wherein: the width dimension of the first light gathering area (7) is 14.69 plus or minus 0.5mm, and the height dimension is 9.44 plus or minus 0.5mm; the width dimension of the second light condensing area (11) is 13.48 plus or minus 0.5mm, and the height dimension is 8.14 plus or minus 0.5mm; the width dimension of the third light-condensing area (8) is 4.5 plus or minus 0.5mm, and the height dimension is 7.16 plus or minus 0.5mm; the width dimension of the fourth light condensation area (12) is 4.5+/-0.5 mm, and the height dimension is 5.84+/-0.5 mm; the width dimension of the fifth light condensation area (13) is 4.5 plus or minus 0.5mm, and the height dimension is 4.73 plus or minus 0.5mm; the width dimension of the sixth light condensation area (9) is 4+/-0.5 mm, and the height dimension is 7.16+/-0.5 mm; the width dimension of the seventh light condensation area (10) is 4+/-0.5 mm, and the height dimension is 5.84+/-0.5 mm; the width dimension of the eighth light-gathering area (14) is 4+/-0.5 mm, and the height dimension is 4.87+/-0.5 mm.