CN213042047U

CN213042047U - Stress lens

Info

Publication number: CN213042047U
Application number: CN202021193828.0U
Authority: CN
Inventors: 李唯宏; 卢宇锦
Original assignee: Heshan Jiamiji Photoelectric Technology Co ltd
Current assignee: Heshan Jiamiji Photoelectric Technology Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-04-23
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a stress lens, include the lens cone and locate inside battery of lens, clamping ring, space ring and the waterproof circle of O type of lens cone, the clamping ring is used for fixing the battery of lens, the space ring is located between the lens that the battery of lens includes for separate two adjacent lenses, the waterproof circle of O type is located the clearance department between lens and the space ring that the battery of lens includes, is used for preventing that lens from breaking. The utility model discloses can effectually reduce the camera lens because of the thermal stress between the device that the high temperature heating expansion caused in long-time high-power test and application process, effectively reduce the lens because of the cracked possibility of thermal stress, guarantee the definition of camera lens formation of image.

Description

Stress lens

Technical Field

The utility model relates to a camera lens technical field, concretely relates to stress lens.

Background

With the development of high technology, the demand of society for lenses is getting larger and larger, and the application fields of lenses are also getting wider and wider, such as the common mobile phone lens, camera lens, automobile data recorder lens, projection lens, and the like. Meanwhile, people have higher and higher requirements on the precision of the lens and the quality of the lens.

At present, a lens generally comprises a lens barrel and lenses in the lens barrel, the lens is easy to generate heat and expand at high temperature in the long-time high-power test and application process, and the generated stress can cause the lenses in the lens to be broken to directly influence the optical performance of the lens, so that the imaging quality of the lens is directly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that above-mentioned exists, provide a stress lens, thermal stress between the device that can effectual reduction camera lens cause because of the high temperature expansion that generates heat in long-time high-power test and application process effectively reduces the lens because of the cracked possibility of thermal stress, has guaranteed the definition of camera lens formation of image.

The utility model discloses a realize above-mentioned purpose, take following technical scheme to realize:

the utility model provides a stress lens, includes the lens cone and locates inside lens group, clamping ring, space ring and the waterproof circle of O type of lens cone, the clamping ring is used for fixing the lens group, the space ring is located between the lens that the lens group includes for separate two adjacent lenses, the waterproof circle of O type is located the clearance department between lens that the lens group includes and the space ring, is used for preventing that lens from breaking.

Preferably, the lens group includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens arranged in sequence along the optical axis, and the number of the spacers is four, and the spacers are respectively arranged outside the first lens, between the second lens and the third lens, between the third lens and the fourth lens, and between the sixth lens and the seventh lens.

Preferably, the O-shaped waterproof ring is provided with one O-shaped waterproof ring which is arranged at a gap between the first lens and the spacer ring arranged on the outer side of the first lens.

Preferably, the O-shaped waterproof ring is made of high-temperature-resistant rubber.

Preferably, the cross section of the O-shaped waterproof ring is O-shaped.

Preferably, the outer diameter of the O-shaped waterproof ring is 44mm, and the wire diameter of the O-shaped waterproof ring is 1.9 mm.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses clearance department between lens and space ring sets up the waterproof circle of O type, and the elasticity performance that can effectual utilization O type waterproof circle prevents that the camera lens from too oppressing in the installation and leading to the fracture, also can alleviate the internal stress that produces in the camera lens assembling process, because the material of lens and lens cone is different, the inflation that generates heat easily when long-time test and application, and its pressure also can be alleviated to the waterproof circle of O type.

Drawings

Fig. 1 is a schematic structural diagram of a stress lens according to the present invention;

fig. 2 is an optical system diagram of a stress lens according to the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 2, a stress lens includes a lens barrel 10, a lens group disposed inside the lens barrel 10, a pressing ring 32, a spacer 33, and an O-shaped waterproof ring 34, where the pressing ring 32 is used to fix the lens group, the spacer 33 is disposed between the lenses included in the lens group for separating two adjacent lenses, and the O-shaped waterproof ring 34 is disposed in a gap between the lenses included in the lens group and the spacer for preventing the lenses from breaking.

In this embodiment, the waterproof circle of O type is set up in the clearance department between the lens of lens group and the spacer ring, and elasticity performance that can effectual utilization waterproof circle of O type prevents that the camera lens from too oppressing in the installation and leading to the fracture in the camera lens, also can alleviate the internal stress that produces in the camera lens assembling process, because the material of lens and lens cone is different, the inflation of generating heat easily when long-time test and application, its pressure also can be alleviated to the waterproof circle of O type.

The space ring is arranged between the lenses included in the third lens group, and the two adjacent lenses can be separated, so that a gap is reserved between the lenses, and the excessive extrusion is avoided.

Optionally, the lens group includes a first lens 311, a second lens 312, a third lens 313, a fourth lens 314, a fifth lens 315, a sixth lens 316, and a seventh lens 317 arranged in sequence along the optical axis, and four spacers 33 are respectively disposed outside the first lens, between the second lens and the third lens, between the third lens and the fourth lens, and between the sixth lens and the seventh lens.

In this embodiment, a space ring is disposed outside the first lens, and a lens barrel is disposed outside the space ring, so that the lens barrel can fasten the space ring and the lens, and the pressing ring is disposed outside the space ring and can fasten the lens barrel and the space ring.

Further, the lens assembly includes a convex surface S1 of the first lens 311, a convex surface S2, a concave surface S3 of the second lens 312, a convex surface S4, a concave surface S5 of the third lens 313, a convex surface S6, a convex surface S7 of the fourth lens 314, a concave surface S8, a convex surface S9 and a concave surface S10 of the fifth lens 315, a concave surface S11 of the sixth lens 316, a convex surface S12, a convex surface S13 of the seventh lens 317, and a concave surface S14.

Optionally, there is one O-ring 34 disposed in the gap between the first lens and the spacer disposed outside the first lens.

The O-shaped waterproof ring is elastic, can effectively prevent the lens from being cracked due to excessive extrusion of the lens in the installation process, is easy to generate heat and expand in long-time test and application due to different materials of the lens and the lens cone, and can also relieve the heat and expansion pressure of the lens and the lens cone.

Optionally, the O-shaped waterproof ring is made of high-temperature-resistant rubber. The O-shaped waterproof ring is made of rubber materials, so that the stress energy release of the lens can be reduced.

Optionally, the cross section of the O-shaped waterproof ring is O-shaped.

Optionally, the outer diameter of the O-shaped waterproof ring is 44mm, and the wire diameter of the O-shaped waterproof ring is 1.9 mm. The O-shaped waterproof ring has a small wire diameter, meets the requirements of a lens and well forms a sealing effect.

the utility model discloses clearance department between the lens of lens group and space ring sets up the waterproof circle of O type, and the elastic property that can effectual utilization O type waterproof circle prevents that the camera lens from too oppressing in the installation lens and leading to the fracture, also can alleviate the internal stress that produces in the camera lens assembling process, because the material of lens and lens cone is different, the inflation of generating heat easily when long-time test and application, its pressure also can be alleviated to the waterproof circle of O type.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications described in the claims and the specification of the present invention are included in the scope of the present invention. In addition, the abstract and the title are provided for assisting the search of patent documents and are not intended to limit the scope of the present invention.

Claims

1. The utility model provides a stress lens, its characterized in that includes the lens cone and locates lens group, clamping ring, space ring and the waterproof circle of O type inside the lens cone, the clamping ring is used for fixing the lens group, the space ring is located between the lens that the lens group includes for separate two adjacent lenses, the waterproof circle of O type is located the lens that the lens group includes and the clearance department between the space ring for prevent that lens from breaking.

2. The lens system of claim 1, wherein the lens group includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens arranged in sequence along the optical axis, and the number of the spacers is four, and the spacers are respectively disposed outside the first lens, between the second lens and the third lens, between the third lens and the fourth lens, and between the sixth lens and the seventh lens.

3. The lens of claim 2, wherein the O-ring is provided in a gap between the first lens and the spacer on the outside of the first lens.

4. The lens of claim 3, wherein the O-ring is made of high temperature resistant rubber.

5. The stress lens of claim 4, wherein said O-ring is O-shaped in cross section.

6. The stress lens of claim 5, wherein the O-shaped waterproof ring has an outer diameter of 44mm and a wire diameter of 1.9 mm.