CN218455821U

CN218455821U - Cat eye lens

Info

Publication number: CN218455821U
Application number: CN202222235027.1U
Authority: CN
Inventors: 樊知义; 杨天来; 周家勇
Original assignee: Dongguan Pinchuang Optoelectronic Technology Co ltd
Current assignee: Dongguan Pinchuang Optoelectronic Technology Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-02-07
Anticipated expiration: 2032-08-24

Abstract

The utility model relates to a cat eye lens technical field discloses a cat eye lens, including the lens cone, the lens cone front end is provided with the end cover that matches with the lens cone, and the middle part of the lens cone rear end is provided with the first light trap, the first light trap is provided with the light filter, the middle part of the end cover front end is provided with the second light trap, glass lens, P first lens, P two lenses, P three lenses and cemented lens have been set gradually in the lens cone; the utility model has the advantages of as follows: 1. a cemented lens is adopted in the cat-eye lens, so that the chromatic aberration of the lens is eliminated, the visual angle of the lens is enlarged, and the definition of the cat-eye lens is effectively improved; the rear ends of the three P lenses are integrally formed with annular convex parts which are used for separating the three P lenses from the cemented lenses, so that parts are omitted on the basis of meeting the optical design requirements, the assembly efficiency is improved, and the production cost is reduced; 3. the tail end of the lens barrel is integrally formed with a butting part which is butted with the cemented lens, so that the lens structure is further simplified.

Description

Cat eye lens

Technical Field

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

Background

Along with the development of society, more and more people have opened the solitary life, and people also focus more on the security protection problem at home in the life. The cat eye lens is a type of optical equipment installed on the security door, and can be convenient for residents to observe outdoor personnel conditions from the room and decide whether to open the door or not when the residents come and go, so that the home safety of the personnel in the room is guaranteed.

The cat eye lens can ensure the safety performance of household personnel, and is popular with more and more people. However, the existing cat-eye lens has a narrow visual angle, and due to the problem of chromatic aberration, the definition of the lens is insufficient, and on the other hand, the problems of complex lens assembly, high cost and the like exist, so that the cat-eye lens is not favorable for production. In view of the above, the inventors have made a new invention.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art not enough, provide a cat eye camera lens, it has clear, the low-cost characteristics of formation of image.

In order to realize the above object, the utility model relates to a cat eye camera lens, including the lens cone, the lens cone front end is provided with the end cover with lens cone looks adaptation, and lens cone rear end middle part is provided with first light trap, first light trap is provided with the light filter, end cover front end middle part is provided with the second light trap, inside glass lens, P one lens, P two lenses, P three lenses and the veneer lens of having set gradually of lens cone, be provided with first wheat pulling-on piece between glass lens and the P one lens, be provided with second wheat pulling-on piece between P one lens and the P two lenses, be provided with the rubber space ring between P two lenses and the P three lenses, three lens rear end integrated into one piece of P have annular bulge, the annular bulge separates three lenses of P and veneer lens, second light trap and glass lens front end adaptation.

Further, the lens cone comprises an upper cylindrical portion and a lower cylindrical portion, the upper cylindrical portion is connected with the end cover, an annular platform portion used for mounting the glass lens and the first Mylar film is arranged inside the upper cylindrical portion, and a plurality of lens clamping positions are arranged inside the lower cylindrical portion.

Furthermore, the end cover and the upper cylindrical part are connected in a clamping, bonding or threaded manner.

Preferably, a threaded part used for being connected with the base is arranged outside the lower cylindrical part.

Preferably, an abutting part for fixing the cemented lens is further arranged inside the lower cylindrical part.

Preferably, a plurality of clamping blocks are arranged at the tail end of the lens barrel, and the clamping blocks are matched with each other to clamp the optical filter.

Has the beneficial effects that: compared with the prior art, the utility model relates to a cat eye lens, which comprises a lens cone, wherein the front end of the lens cone is provided with an end cover matched with the lens cone, the middle part of the rear end of the lens cone is provided with a first light transmission hole, the first light transmission hole is provided with a light filter, the middle part of the front end of the end cover is provided with a second light transmission hole, and a glass lens, a P first lens, a P second lens, a P third lens and a cemented lens are sequentially arranged in the lens cone; the utility model has the advantages of as follows: 1. a cemented lens is adopted in the cat-eye lens, so that the chromatic aberration of the lens is eliminated, the visual angle of the lens is enlarged, and the definition of the cat-eye lens is effectively improved; the rear ends of the three P lenses are integrally formed with annular convex parts which are used for separating the three P lenses from the cemented lenses, so that parts are omitted on the basis of meeting the optical design requirements, the assembly efficiency is improved, and the production cost is reduced; 3. the tail end of the lens cone is integrally formed with a butting part which is butted with the cemented lens, so that the lens structure is further simplified.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic cross-sectional view of the internal structure of the present invention.

Fig. 3 is an exploded schematic view of the present invention.

Fig. 4 is a schematic view of the internal structure of the lens barrel of the present invention.

Fig. 5 is a schematic view of a bottom structure of the lens barrel of the present invention.

The reference numerals include:

the lens comprises a lens barrel (1), a first light transmission hole (11), a filter (12), an upper cylindrical part (13), an annular platform part (131), a lower cylindrical part (14), a lens clamping part (141), a thread part (142), a butting part (143), a clamping block (144), an end cover (2), a second light transmission hole (21), a glass lens (3), a first lens (4), a second lens (5), a third lens (6), an annular protruding part (61), a glued lens (7), a first Mylar film (8), a second Mylar film (9) and a rubber spacer ring (10).

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 5.

The utility model relates to a cat eye camera lens, including lens cone 1, 1 front end of lens cone is provided with end cover 2 with 1 looks adaptation of lens cone, and 1 rear end middle part of lens cone is provided with first light trap 11, first light trap 11 is provided with

light filter

12, 2 front end middle parts of end cover are provided with second light trap 21, 1 inside glass lens 3, P a lens 4, P two lenses 5, P three lenses 6 and the veneer lens 7 of having set gradually of lens cone, be provided with first wheat pulling-on piece 8 between glass lens 3 and the P lens 4, be provided with second wheat pulling-on piece 9 between P a lens 4 and the P two lenses 5, be provided with rubber space ring 10 between P two lenses 5 and the P three

lenses

6, 6 rear end integrated into one piece of P three lenses has annular bulge 61, annular bulge 61 separates P three lenses 6 and veneer lens 7,

second light trap

21 and 3 front end adaptation of glass lens, end cover 2 plays the effect of fixed glass lens 3. In the technical scheme, the first lens 4, the second lens 5 and the third lens 6 are plastic lenses, and the cemented lens 7 is also a plastic lens. The utility model discloses compare in traditional cat eye lens have following advantage: 1. the cat eye lens adopts the cemented lens, thereby eliminating the chromatic aberration of the lens, enlarging the visual angle of the lens and effectively improving the definition of the cat eye lens; three lens rear end integrated into one piece of P have annular bulge, utilize annular bulge to separate three lens of P and veneer lens, omit the part on the basis of satisfying the optical design demand, improve packaging efficiency and reduction in production cost.

In this technical scheme, lens barrel 1 includes cylinder portion 13 and lower cylinder portion 14, cylinder portion 13 is connected with end cover 2 on, and cylinder portion 13 is inside to be provided with the annular platform portion 131 that is used for installing glass lens 3 and first Mylar piece 8 on to cylinder portion 13 sets up with cylinder portion 14 integrated into one piece down. The lower cylindrical portion 14 is provided with a plurality of lens retainers 141 therein for defining the positions of the plurality of lenses.

As an embodiment, the connection manner of the end cap 2 and the upper cylindrical portion 13 may be a snap connection, an adhesive connection, or a threaded connection. When the connection mode is threaded connection, the threaded part 142 is arranged in the end cover 2, and the external threaded part 142 is correspondingly arranged on the upper cylindrical part 13, so that the threaded connection between the end cover 2 and the upper cylindrical part 13 can be realized; when the connection mode is bonding, waterproof adhesive is coated outside the upper cylindrical part 13, the end cover 2 covers the upper cylindrical part 13, and the assembly is completed after the adhesive is solidified; when the connected mode is the joint, the size looks adaptation of cylinder portion 13 and end cover 2 in the production process is controlled in advance, can realize fixed connection with both direct locks during the equipment. Wherein, the equipment of lock joint mode is the quickest, convenient, and the bonding mode makes the camera lens module have water-proof effects, and threaded connection then makes things convenient for the dismantlement of camera lens module, can select suitable connected mode according to actual demand during production.

Preferably, the lower cylindrical portion 14 is externally provided with a threaded portion 142 for connection with a base. In the technical scheme, the inventor adopts a threaded connection mode to assemble the lens module and the base.

As shown in fig. 2, an abutment portion 143 for fixing the cemented lens 7 is further provided inside the lower cylindrical portion 14. Traditional cat eye lens need additionally set up the bottom that spare part removed fixed inside lens at the end of lens cone 1 usually, and is inconvenient when not only assembling, influences production efficiency, and extra spare part probably increases manufacturing cost moreover, is unfavorable for production. To solve such problems, the inventor focuses on providing a tapered abutting portion 143 at an inner end of the lens barrel 1, and abutting and fixing the cemented lens 7 together with the lens stopper 141 without adding additional components.

Preferably, the end of the lens barrel 1 is provided with a plurality of clamping blocks 144, and the clamping blocks 144 are matched with each other to clamp the optical filter 12, so as to realize rapid positioning and assembly of the optical filter 12.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there may be variations in the embodiments and applications according to the spirit of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A cat eye lens, includes lens barrel (1), its characterized in that: the lens cone comprises a lens cone body (1), and is characterized in that an end cover (2) matched with the lens cone body (1) is arranged at the front end of the lens cone body (1), a first light transmission hole (11) is formed in the middle of the rear end of the lens cone body (1), a light filter (12) is arranged in the first light transmission hole (11), a second light transmission hole (21) is formed in the middle of the front end of the end cover (2), a glass lens (3), a P lens (4), a P lens (5), a P lens (6) and a cemented lens (7) are sequentially arranged in the lens cone body (1), a first mylar sheet (8) is arranged between the glass lens (3) and the P lens (4), a second mylar sheet (9) is arranged between the P lens (4) and the P lens (5), a rubber spacer ring (10) is arranged between the P lens (5) and the P lens (6), an annular protruding portion (61) is integrally formed at the rear end of the P lens (6), the annular protruding portion (61) separates the P lens (6) from the P lens (6) and the cemented lens (7), and the second light transmission hole (21) is matched with the glass lens (3).

2. The cat-eye lens according to claim 1, characterized in that: the lens barrel (1) comprises an upper cylindrical portion (13) and a lower cylindrical portion (14), the upper cylindrical portion (13) is connected with the end cover (2), an annular platform portion (131) used for mounting a glass lens (3) and a first Mylar film (8) is arranged inside the upper cylindrical portion (13), and a plurality of lens clamping positions (141) are arranged inside the lower cylindrical portion (14).

3. The cat-eye lens according to claim 2, wherein: the end cover (2) is connected with the upper cylindrical part (13) in a clamping, bonding or threaded manner.

4. The cat-eye lens according to claim 2, wherein: and a thread part (142) used for being connected with the base is arranged outside the lower cylindrical part (14).

5. The cat-eye lens according to claim 2, wherein: an abutting part (143) used for fixing the cemented lens (7) is also arranged inside the lower cylindrical part (14).

6. The cat-eye lens according to any one of claims 1 to 5, characterized in that: the end of the lens barrel (1) is provided with a plurality of clamping blocks (144), and the clamping blocks (144) are matched with each other to clamp the optical filter (12).