CN210899293U

CN210899293U - Video camera

Info

Publication number: CN210899293U
Application number: CN201921881786.7U
Authority: CN
Inventors: 周维燃; 湛慧; 季腾飞; 叶栋
Original assignee: Zhejiang Dahua Technology Co Ltd
Current assignee: Zhejiang Dahua Technology Co Ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-06-30
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a camera, including the guard shield, locate camera body and camera lens in the said guard shield; the front face of the shield is provided with a light ray inlet, and the light incident surface of the lens faces the light ray inlet and is used for receiving external light rays; the front face of the shield is fixedly connected with shield glass, and external light rays can penetrate through the shield glass and enter the light incident surface of the lens; an inclined mounting surface is formed on the front face of the shield, and shield glass is arranged on the inclined mounting surface, so that an included angle P is formed between the plane where the shield glass is located and the light incident surface of the lens, wherein P is more than or equal to 7 degrees and less than or equal to 15 degrees. The utility model discloses fix shield glass on the slope installation face that forms on the guard shield front face to this realizes the purpose of this shield glass slope installation, and the reasonable inclination setting of shield glass ensures this camera image acquisition's quality.

Description

Video camera

Technical Field

The utility model belongs to the technical field of the camera technology is relevant, especially relate to a camera.

Background

In security protection video monitoring field, surveillance camera all need install the camera lens in the guard shield, and wherein there is window glass in the design of one side of camera lens on the guard shield, and light shines in the camera lens through window glass. In particular, the video monitoring image quality requirement is higher and higher, and the problems of halation, ghost, flare and the like caused by light refraction and reflection pose a challenge to the design and installation of the protective cover and the lens.

In order to solve the technical problems, a common method adopted in the current market is to plate an antireflection film, specifically, an inclined optical filter is arranged between an image sensor and a lens, the structure is complex, and the effect of eliminating the problems of halation, ghost and flare is poor. Therefore, people have made continuous research and proposed a way of tilting the cover glass, specifically, as the video monitor apparatus and the cover structure thereof (application number: 2016204427316) disclosed in the chinese patent, external light enters the cover glass, most of the light enters the image sensor through the lens, a part of the light is reflected to the cover glass through the surface of the lens glass, and after the cover glass is tilted, stray light reflected by the inner side surface of the glass is obliquely emitted and away from the lens.

The scheme theoretically proves that the mode of inclination of the cover glass is adopted, so that the ghost phenomenon of the camera can be eliminated, the image acquisition quality of video monitoring is improved, and the specific mode of fixing the cover glass is not provided.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a camera to solve the technical problems in the prior art.

The camera comprises a shield, a camera body and a lens, wherein the camera body and the lens are arranged in the shield; the front face of the shield is provided with a light ray inlet, and the light incident surface of the lens faces the light ray inlet and is used for receiving external light rays; the front face of the shield is fixedly connected with shield glass, and external light rays can penetrate through the shield glass and enter the light incident surface of the lens; an inclined mounting surface is formed on the front face of the shield, and shield glass is arranged on the inclined mounting surface, so that an included angle P is formed between the plane where the shield glass is located and the light incident surface of the lens, wherein P is more than or equal to 7 degrees and less than or equal to 15 degrees.

As the preferred scheme of the utility model, the cover glass is fixed at the position of the light inlet on the front face of the cover.

As the preferred scheme of the utility model, the slope installation face establish to orientation on the guard shield front face the medial surface of camera lens, guard shield glass laminate in the medial surface of guard shield front face to compress tightly with the glazing bead.

As the preferred scheme of the utility model, the medial surface of face before the guard shield with be equipped with waterproof silica gel circle between the position that guard shield glass contacted.

As the utility model discloses a preferred scheme, be equipped with on the guard shield front face stretch into to the retaining ring of light import, the slope installation face sets up on the retaining ring, guard shield glass passes through glue and is in with the mode of pasting fixedly set up on the retaining ring of guard shield front face.

As the preferred scheme of the utility model, the guard shield front face with be equipped with waterproof silica gel circle between the position that the guard shield contacted.

As the utility model discloses a preferred scheme, the guard shield front face is at the orientation there is the keysets in one side of camera lens through the screw rigid coupling, the slope installation face is established the keysets deviates from a side end face of camera lens, guard shield glass passes through glue and is in with the mode of pasting fixedly set up on the keysets.

As the preferred scheme of the utility model, the keysets with be equipped with waterproof silica gel circle between the position that the face contacted before the guard shield.

As the utility model discloses a preferred scheme, the rigid coupling has the glass fixed bolster on the guard shield front face, wherein the glass fixed bolster orientation the part of light import with it has guard shield front face glass to compress tightly between the guard shield front face, the slope installation face establish to the glass fixed bolster is in deviating from a side end face of guard shield front face glass, guard shield glass passes through glue and is in with the mode of pasting fixedly set up on the glass fixed bolster.

As the utility model discloses an optimal scheme, the plane at guard shield front face glass place with go into plain noodles parallel arrangement of camera lens, wherein guard shield front face glass with be equipped with waterproof silica gel circle between the position that the guard shield front face contacted.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the camera provided by the utility model eliminates the ghost phenomenon of the camera by using the shield glass which is obliquely arranged relative to the upper light incident surface of the lens, thereby having the function of improving the image acquisition quality of the camera; meanwhile, the camera fixes the shield glass on an inclined mounting surface formed on the front face of the shield, so that the purpose of inclined mounting of the shield glass is achieved, and the reasonable inclined angle of the shield glass ensures the quality of image acquisition of the camera.

Drawings

Fig. 1 is a cross-sectional view of a camera according to a first embodiment of the present invention.

Fig. 2 is a schematic view of the assembly of the front face of the cover, the cover glass and the glass platen in the camera of fig. 1.

Fig. 3 is a cross-sectional view of a camera according to a second embodiment of the present invention.

Fig. 4 is a cross-sectional view of a camera according to a third embodiment of the present invention.

Fig. 5 is a cross-sectional view of a camera according to a fourth embodiment of the present invention.

Wherein, 10, the shield; 11. a shield front face; 110. an inclined mounting surface; 112. a retainer ring; 101. a light inlet; 20. a camera body; 30. a lens; 31. a light incident surface; 40. a cover glass; 50. pressing a glass strip; 51. a screw; 60. a waterproof silica gel ring; 70. an adapter plate; 80. a glass fixing bracket; 81. the shield is a front glass.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 and 2, a camera according to a first embodiment of the present invention includes a protective cover 10, a camera body 20 and a lens 30 disposed in the protective cover 10, a light inlet 101 is disposed on a front face 11 of the protective cover 10, and a light incident surface 31 of the lens 30 is disposed toward the light inlet 101 for receiving external light. That is to say, when the camera of the present embodiment works, external light enters the light incident surface 31 of the lens 30 through the light entrance 101, and is then received and imaged by the camera body 20.

Wherein, the front face 11 of the protective cover of the present invention is detachably connected to the protective cover 10, and the front face 11 of the protective cover is fixed to the protective cover 10 by screws (not shown), so that the camera body 10, the lens 30 and other structures are connected and assembled in the protective cover 10. It should be noted that the front cover 11 and the cover 10 are not limited to be fixed by screws, and those skilled in the art may connect and fix the front cover 11 by other methods such as welding, snapping, and the like according to the use requirement.

In this embodiment, a cover glass 40 is fixed on the cover front face 11, and external light can penetrate through the cover glass 40 to enter the light incident surface 31 of the lens 30, and pass through the lens 30 to be received by the camera body 20. An inclined mounting surface 110 is formed on the shield front face 11, the shield glass 40 is arranged on the inclined mounting surface 110, so that an included angle P is formed between a plane where the shield glass 40 is located and a light incident surface of the lens 30, wherein P is more than or equal to 7 degrees and less than or equal to 15 degrees, when light rays are incident into the light incident surface 31 of the lens 30 and are partially reflected to the shield glass 40 by the light incident surface 31 of the lens 30, the light rays can be emitted out through the shield glass 40 in a direction away from the lens 30, so that a phenomenon of 'ghost' of the camera is eliminated, and the quality of image acquisition of the camera is improved. It should be noted that, in the present invention, the included angle formed between the shield glass 40 and the light incident surface 31 of the lens 30 is set to be greater than or equal to 7 °, and less than or equal to 15 °, which is specifically set according to the use requirement that the shield glass 40 receives the light reflected by the light incident surface 31 of the lens 30 and emits in the direction away from the lens 30, and the description is not provided herein.

It can be understood that the cover glass 40 is disposed obliquely relative to the lens 30, and the oblique direction can be specifically set according to the use requirement, and is preferably inclined downwards to prevent rain water and dust from adhering to the surface of the cover glass 40, thereby ensuring the imaging quality of the camera during operation.

Wherein the cover glass 40 is fixed at the position of the light inlet 101 on the cover front 11.

Specifically, the inclined mounting surface 110 is an inner side surface of the shield front surface 11 facing the lens 30, and the shield glass 40 is bonded to the inner side surface of the shield front surface 11 and pressed by the glass bead 50. That is, in the present embodiment, the cover glass 40 directly abuts against the inner side surface of the front cover 11, and the cover glass 40 and the incident surface 31 of the lens 30 are obliquely arranged by pressing and limiting the glass bead 50.

The number of the glazing beads 50 of the present embodiment is two, wherein each glazing bead 50 is configured as a C-shaped structure, and each glazing bead 50 partially presses the cover glass 40, and the other part presses the cover front 11, wherein the part pressing the cover front 11 is fixed on the cover front 11 by a screw 51, thereby realizing the limit fixation of the glazing beads 50 to the cover glass 40. It should be noted that the number of the glass beads 50 is not limited to two, and those skilled in the art can set the number of the glass beads 50 to three, four, or even more according to the use requirement.

As a preferable configuration of this embodiment, a waterproof silicone ring 60 is provided between the inner surface of the hood front 11 and the portion of the hood glass 40 that contacts with each other, so that the assembly seal between the hood glass 40 and the hood front 11 is realized.

It can be understood that the cover glass 40 of the present embodiment is pressed against the cover front 11 through the glass bead 50, and a waterproof silicone ring 60 is embedded between the cover glass 40 and the cover front 11, so as to facilitate the assembly and disassembly of the cover glass 40, and further facilitate the maintenance of the subsequent use of the camera.

It should be noted that, in the assembly of the waterproof silicone ring 60 between the cover glass 40 and the cover front 11, specifically, a circle of groove (not shown) may be formed in the cover front 11, the waterproof silicone ring 60 is embedded in the corresponding groove, and the waterproof silicone ring 60 assembled in the groove partially protrudes outward relative to the cover front 11, so that when the cover glass 40 is pressed on the cover front 11, the cover glass 40 can press the waterproof silicone ring 60, thereby realizing the assembly sealing between the cover glass 40 and the cover front 11.

Referring to fig. 3, in the camera according to the second embodiment of the present invention, a retaining ring 112 extending into the light inlet 101 is disposed on the front face 11 of the shield, the inclined mounting surface 110 is disposed on the retaining ring 112, and the shield glass 40 is fixedly disposed on the retaining ring 112 of the front face 11 of the shield by glue in a sticking manner. That is, in the camera of the present embodiment, the cover glass 40 is fixed to the stopper 112 of the cover front 11 in a bonded manner, and the cover glass 40 and the light incident surface 31 of the lens 30 are disposed in an inclined manner.

In this embodiment, the waterproof silicone ring 60 is disposed between the contact portions of the front shield face 11 and the front shield 10, so as to achieve the assembling and sealing between the front shield face 11 and the front shield face 10. It should be noted that the assembling manner of the waterproof silicone ring 60 in the present embodiment may be the same as that of the waterproof silicone ring 60 in the first embodiment, and will not be described herein.

Referring to fig. 4, in the camera according to the third embodiment of the present invention, an adapter plate 70 is fixedly connected to the inner side surface 11 of the front face 11 of the shield, the inclined mounting surface 110 is a side end surface of the adapter plate 70 deviating from the lens 30, and the shield glass 40 is fixedly disposed on the adapter plate 70 in a sticking manner by glue.

Specifically, the adapter plate 70 is detachably fixed to the front shield face 11 by screws, wherein the adapter plate 70 extends into the light inlet 101 in a direction away from the lens 30, and the inclined mounting surface 110 is set as an end surface of the adapter plate 70 on a side away from the lens 30.

In this embodiment, the waterproof silicone ring 60 is disposed between the portions of the adapter plate 70 contacting with the front face 11 of the shield, so as to achieve the assembling and sealing between the adapter plate 70 and the front face 11 of the shield.

Referring to fig. 5, in the camera according to the fourth embodiment of the present invention, a glass fixing bracket 80 is fixedly connected to the front face 11 of the shield, a portion of the glass fixing bracket 80 facing the light inlet 101 and the front face 11 of the shield are tightly pressed by the front face glass 81 of the shield, the inclined mounting surface 110 is a side end surface of the glass fixing bracket 80 deviating from the front face glass 81 of the shield, and the shield glass 40 is fixedly disposed on the glass fixing bracket 80 by glue in a sticking manner. That is, in the present embodiment, the cover glass 40 is fixed to the glass fixing bracket 80 fixed to the cover front 11, and the cover glass 40 is inclined with respect to the light incident surface 31 of the lens 30.

The plane that guard shield front face glass 81 place on the camera of this embodiment with go into plain noodles 31 parallel arrangement of camera lens 30 for external light can pass in proper order guard shield front face glass 81 after guard shield glass 40 jets into again the income plain noodles 31 of camera lens 30, with use guard shield front face glass 81 is right guard shield glass 40 plays the effect of protection, just guard shield front face glass 81 set up do not influence by the partial light of camera lens 30 income plain noodles 31 reflection, and the orientation is kept away from lens 30's direction jets out.

In this embodiment, the waterproof silicone ring 60 is disposed between the portions where the shield front glass 81 contacts the shield front 11, so as to achieve the assembly sealing between the shield front glass 81 and the shield front 11.

To sum up, the camera provided by the utility model eliminates the ghost phenomenon of the camera by using the shield glass which is obliquely arranged relative to the upper light incident surface of the lens, thereby having the function of improving the image acquisition quality of the camera; meanwhile, the camera fixes the shield glass on an inclined mounting surface formed on the front face of the shield, so that the purpose of inclined mounting of the shield glass is achieved, and the reasonable inclined angle of the shield glass ensures the quality of image acquisition of the camera.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A camera comprises a shield, a camera body and a lens, wherein the camera body and the lens are arranged in the shield; the front face of the shield is provided with a light ray inlet, and the light incident surface of the lens faces the light ray inlet and is used for receiving external light rays; the method is characterized in that: the front face of the shield is fixedly connected with shield glass, and external light rays can penetrate through the shield glass and enter the light incident surface of the lens; an inclined mounting surface is formed on the front face of the shield, and shield glass is arranged on the inclined mounting surface, so that an included angle P is formed between the plane where the shield glass is located and the light incident surface of the lens, wherein P is more than or equal to 7 degrees and less than or equal to 15 degrees.

2. The camera of claim 1, wherein: the shield glass is fixed at the position of the light inlet on the front face of the shield.

3. The camera of claim 2, wherein: the inclined mounting surface is arranged on the inner side surface of the front face of the protective cover facing the lens, and the protective cover glass is attached to the inner side surface of the front face of the protective cover and is pressed tightly by a glass pressing strip.

4. The camera of claim 3, wherein: and a waterproof silica gel ring is arranged between the inner side surface of the front face of the shield and the contact part of the shield glass.

5. The camera of claim 2, wherein: be equipped with on the guard shield front face and stretch into to the retaining ring of light import, the slope installation face sets up on the retaining ring, guard shield glass passes through glue and is in with the mode of pasting fixedly set up on the retaining ring of guard shield front face.

6. The camera of claim 5, wherein: and a waterproof silica gel ring is arranged between the front face of the shield and the contact part of the shield.

7. The camera of claim 2, wherein: the front face of the protective cover faces towards one side of the lens, an adapter plate is fixedly connected to one side of the protective cover facing towards the lens through screws, the inclined mounting face is arranged to be the side end face of the adapter plate, which deviates from the lens, and the protective cover glass is fixedly arranged on the adapter plate in a sticking mode through glue.

8. The camera of claim 7, wherein: and a waterproof silica gel ring is arranged between the adapter plate and the contact part of the front face of the shield.

9. The camera of claim 1, wherein: the rigid coupling has the glass fixed bolster on the guard shield front face, wherein the glass fixed bolster orientation the light import the part with it has guard shield front face glass to compress tightly between the guard shield front face, the slope installation face is established glass fixed bolster is deviating from a side end face of guard shield front face glass, guard shield glass passes through glue and is in with the mode of pasting fixedly set up on the glass fixed bolster.

10. The camera of claim 9, wherein: the plane where the shield front face glass is located and the light incident surface of the lens are arranged in parallel, wherein a waterproof silica gel ring is arranged between the shield front face glass and the position where the shield front face contacts.