CN208207335U - A kind of automotive rear-view camera lens of wide viewing angle - Google Patents

Abstract

The utility model discloses a kind of automotive rear-view camera lens of wide viewing angle, including lens barrel, lens barrel has the mirror chamber through lens barrel, the step that multistage aperture is gradually reduced is formed on mirror chamber, cover plate is set on the step of mirror chamber upper end, cover plate is tightly connected and covers the chamber that finishes filming by waterproof apron and lens barrel, and cover plate also passes through drive end bearing bracket of the cover buckle in lens barrel upper end and locks；Spacer ring is set on the first step of cover plate lower end, is equipped with plastic lens on spacer ring；It is symmetrical arranged two mylar films on the second step of spacer ring lower end, is installed on the first plastic lens on two mylar films；The second plastic lens are set on the third step of two mylar film lower ends, the second plastic lens extend downwardly out protrusion；Optical filter is set at its light-emitting window position of lens barrel bottom mating, optical filter is tightly connected by glue envelope with lens barrel；Optical filter cooperates drive end bearing bracket and cover plate sealed mirror chamber, and matches plastic lens, the first plastic lens and the second plastic lens being assemblied in the intracavitary matched camera lens of composition of mirror.

Description

A kind of automotive rear-view camera lens of wide viewing angle

Technical field

The utility model relates to optical lens technology field, the automotive rear-view camera lens of especially a kind of wide viewing angle.

Background technique

Currently, chip pixel is higher and higher with the development of high pixel chip, required camera lens resolution is also increasingly It is high.To solve these problems, the eyeglass of lens design is more and more, increases so as to cause increased costs and optics overall length.It is added Aspheric lens designs can be improved image quality and reduce optics overall length.

The existing general aspheric lens designs using plastic material, but use the aspheric lens designs of plastic material Camera lens image quality is unstable, and since the heat-resisting acid-fast alkali-proof characteristic of plastic material is bad, therefore camera lens image quality is easy with temperature or environment Variation and be deteriorated.And the heat-resisting acid-fast alkali-proof characteristic of glass material is preferable, therefore use the aspheric optical design of glass material not But it improves lens imaging quality and reduces optics overall length, and be not easy the variation with temperature or environment and image quality is caused to be deteriorated.

And it is existing in, optical lens is applied to the backsight of vehicle blind zone or reverse image, but it is existing in such camera lens Shortcomings are that the camera lens angle of visibility for automotive rear-view is small, deformation distortion is big, anamorphose amount is big.

Utility model content

The technical issues of the utility model solves be for above-mentioned the problems of the prior art, provide it is a kind of it is easy to assembly, The automotive rear-view camera lens that angle of visibility is big, deformation distortion amount and anamorphose amount are small.

To solve above-mentioned technical problem, a kind of technical solution that the utility model is taken is as follows: a kind of automobile of wide viewing angle Backsight camera lens, including lens barrel, the lens barrel have the mirror chamber through lens barrel, are formed with multistage aperture on the mirror chamber and are gradually reduced Step, set cover plate on the step of mirror chamber upper end, the cover plate is tightly connected and is covered with the lens barrel by waterproof apron The mirror chamber is sealed, and the cover plate also passes through drive end bearing bracket of the cover buckle in lens barrel upper end and locks；Positioned at the first of the cover plate lower end Spacer ring is set on step, is equipped with plastic lens on the spacer ring；Two wheats are symmetrical arranged on the second step of spacer ring lower end to draw Piece is installed on the first plastic lens on two mylar films, and first plastic lens and plastic lens also pass through concaveconvex structure and inlay It is embedded in and matches；The second plastic lens are installed on the third step of two mylar film lower ends, second plastic lens extend downwardly Protrusion out, and when the second plastic lens are mounted on third step, protrusion is embedded in the light-emitting window of mirror chamber lower end；It is described Optical filter is set at its light-emitting window position of lens barrel bottom mating, the optical filter is tightly connected by glue envelope with lens barrel；The optical filtering Piece cooperates drive end bearing bracket and cover plate seals the mirror chamber, and matches plastic lens, the first plastic lens and the second plastic rubber mirror is on chip Assigned in the intracavitary matched camera lens of composition of mirror；The outer diameter of the camera lens is 13.90~φ of φ 14.10mm, the height of the camera lens Degree is 11.12~11.72mm.

It is further described as to above-mentioned technical proposal:

In the above-mentioned technical solutions, the drive end bearing bracket and the lens barrel interference fit, and connect by glue sealing.

In the above-mentioned technical solutions, the cover plate is cover glass or plastic cement cover plate, and the cover plate is half a month tulwar shape Cover plate, and the first arc depression portion that the wheat flour of the cover plate and the plastic lens face is upward.

In the above-mentioned technical solutions, first plastic lens upper surface boss protruding upward, the spacer ring middle part are formed with For the embedding hole that the boss is inlayed, when first plastic lens assemble, the boss inlay in embedding hole and upwards after stretching Insertion opens system in the arc depression portion on the plastic lens lower end surface, matches first plastic lens and plastic lens are logical It crosses concaveconvex structure and inlays assembly.

In the above-mentioned technical solutions, the outer diameter of the camera lens is φ 14.00mm, and the height of the camera lens is 11.80mm。

The utility model has the beneficial effects that: the camera lens of the utility model is by being respectively set lid in lens barrel upper and lower ends Piece and optical filter, and cover plate is fixed by drive end bearing bracket cover buckle, and three plastic lens and matching spacer ring and mylar film are assemblied in mirror The intracavitary matched camera lens of composition；The lens assembling of the utility model is convenient and efficient, and the angle of visibility of camera lens is big, amount of distortion is small and Photographic effect is good.

Detailed description of the invention

Fig. 1 is the sectional view of the utility model camera lens；

Fig. 2 is the exploded view of Fig. 1.

In figure, 001. mirror chamber, 002. step, 003. first step, 004. second step, 005. third step, 1. lens barrels, 2. optical filter, 3. plastic lens, 4. mylar films, 5. first plastic lens, 6. spacer rings, 7. second plastic lens, 8. cover plates, 9. is anti- Glue circle, 10. drive end bearing brackets, 301. arc depression portions, 501. boss, 601. embedding holes, 701. protrusions, 801. first arc depressions Portion.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing.

It is exemplary by reference to the embodiment that attached drawing describes, it is intended to for explaining the application, and should not be understood as pair The limitation of the application.In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for Convenient for description the application and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side Position is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second " It is used for description purposes only, is not understood to indicate or imply relative importance or implicitly indicates indicated technical characteristic Quantity.Thus, define " first ", the feature of " second " can explicitly or implicitly include one or more spy Sign.In the description of the present application, " several ", the meaning of " plurality " is two or more, unless otherwise clearly specific It limits.Unless otherwise clearly defined and limited, in this application, the arts such as term " installation ", " connected ", " connection ", " fixation " Language shall be understood in a broad sense, such as, it may be a fixed connection, may be a detachable connection, or be integrally connected；It can be machinery Connection, is also possible to be electrically connected；It can be directly connected, two elements can also be can be indirectly connected through an intermediary Internal connection.For the ordinary skill in the art, above-mentioned term can be understood in the application as the case may be In concrete meaning.Unless otherwise clearly defined and limited, in this application, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to Cross the other characterisation contact between them.And fisrt feature includes above the second feature " above ", " above " and " above " One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special Sign includes fisrt feature right above second feature and oblique upper under the second feature " below ", " below " and " below ", or only Indicate that first feature horizontal height is less than second feature.

Attached drawing 1-2 the example a kind of specific embodiment of the automotive rear-view camera lens of wide viewing angle of the utility model, reference are attached Fig. 1-2, a kind of automotive rear-view camera lens of wide viewing angle, including lens barrel 1, the lens barrel 1 have the mirror chamber 001 through lens barrel 1, institute The step (002~005) for being formed with multistage aperture on mirror chamber 001 and being gradually reduced is stated, is set on the step 002 of 002 upper end of mirror chamber Cover plate 8, the cover plate 8 are tightly connected and are covered by waterproof apron 9 and the lens barrel 1 the envelope mirror chamber 001, pass through the marine glue Circle 9, makes the camera lens of the present embodiment have water-proof function, in practice, certain camera lenses do not do water-proof function, therefore do not assemble waterproof then Cushion rubber 9；Drive end bearing bracket 10 of the cover plate 8 also by cover buckle in 1 upper end of lens barrel locks；First positioned at 8 lower end of cover plate Spacer ring 6 is set on rank 003, plastic lens 3 are equipped on the spacer ring 6, and the plastic lens 3 are located at the spacer ring 6 in position Between cover plate 8；Two mylar films 4 are symmetrical arranged on the second step 004 of 6 lower end of spacer ring, two mylar films 4 are symmetrical arranged But and be not connected to, that is, the gap for going out light is also matched between two mylar films 4, be installed on the first modeling on two mylar films 4 Glue eyeglass 5, and first plastic lens 5 and plastic lens 3 also inlay assembly, that is, described first by concaveconvex structure 5 upper surface of plastic lens boss 501 protruding upward is formed with the embedding hole 601 inlayed for the boss 501, institute in the middle part of the spacer ring 6 When stating the assembly of the first plastic lens 5, the boss 501 is embedded in embedding hole 601 and insertion opens system in the modeling after stretching out upwards In arc depression portion 301 on 3 lower end surface of glue eyeglass, matches first plastic lens 5 and plastic lens 3 pass through concaveconvex structure Inlay assembly；In practice, when boss 501 is embedded in embedding 601 inner hole of hole and is extend out in arc depression portion 301 upwards, boss 501 is pushed up 301 some gaps of top end face of spacing arc depression portion are held, install the second modeling on the third step 005 of two mylar films, 4 lower end Glue eyeglass 7, second plastic lens 7 extend downwardly out protrusion 701, and the second plastic lens 7 are mounted on third step 005 When, protrusion 701 is embedded in the light-emitting window of 001 lower end of mirror chamber；It is set at described its light inlet position of 1 bottom mating of lens barrel Optical filter 2, the optical filter 2 are tightly connected by glue envelope with lens barrel 1；The optical filter 2 cooperates drive end bearing bracket 10 and cover plate 8 to seal The mirror chamber 001, and match and plastic lens 3, the first plastic lens 5 and the second plastic lens 7 are assemblied in structure in mirror chamber 001 At matched camera lens；And the outer diameter of the embodiment of the present invention camera lens is 13.90~φ of φ 14.10mm, preferably φ 14.00mm, the height of the camera lens are 11.12~11.72mm, preferably 11.42mm.

The camera lens of the present embodiment is by being respectively set cover plate and optical filter in lens barrel upper and lower ends, and cover plate passes through drive end bearing bracket Cover buckle is fixed, and three plastic lens and matching spacer ring and mylar film are assemblied in the intracavitary matched camera lens of composition of mirror；The present embodiment Lens assembling it is convenient and efficient, and the angle of visibility of camera lens is big, amount of distortion is small and photographic effect is good.

Do not limit the technical scope of the present invention above, it is all according to the utility model technical spirit to On embodiment made by any modification, equivalent variations and modification, in the range of still falling within the technical solution of the utility model.

Claims (5)

1. a kind of automotive rear-view camera lens of wide viewing angle, it is characterised in that, including lens barrel, the lens barrel is with the mirror through lens barrel Chamber is formed with the step that multistage aperture is gradually reduced on the mirror chamber, and cover plate is set on the step of mirror chamber upper end, and the cover plate is logical It crosses waterproof apron and the lens barrel is tightly connected and covers the envelope mirror chamber, and the cover plate also passes through cover buckle before lens barrel upper end End cap locking；Spacer ring is set on the first step of the cover plate lower end, is equipped with plastic lens on the spacer ring；Positioned at spacer ring It is symmetrical arranged two mylar films on the second step of lower end, is installed on the first plastic lens, and first plastic cement on two mylar films Eyeglass and plastic lens also pass through concaveconvex structure and inlay assembly；The second plastic cement is installed on the third step of two mylar film lower ends Eyeglass, second plastic lens extend downwardly out protrusion, and when the second plastic lens are mounted on third step, protrusion is embedding In the light-emitting window for entering mirror chamber lower end；Optical filter is set at its light-emitting window position of the lens barrel bottom mating, the optical filter is logical Glue envelope is crossed to be tightly connected with lens barrel；Optical filter cooperation drive end bearing bracket and cover plate seal the mirror chamber, and match by plastic lens, First plastic lens and the second plastic lens are assemblied in the intracavitary matched camera lens of composition of mirror；The outer diameter of the camera lens is φ 13.90~φ 14.10mm, the height of the camera lens are 11.12~11.72mm.

2. a kind of automotive rear-view camera lens of wide viewing angle according to claim 1, which is characterized in that the drive end bearing bracket and institute Lens barrel interference fit is stated, and is connect by glue sealing.

3. a kind of automotive rear-view camera lens of wide viewing angle according to claim 2, it is characterised in that, the cover plate is glass Cover plate or plastic cement cover plate, and the cover plate is half a month tulwar shape cover plate, and the wheat flour of the cover plate and the plastic lens face The first upward arc depression portion.

4. a kind of automotive rear-view camera lens of wide viewing angle according to claim 3, it is characterised in that, first plastic rubber mirror Piece upper surface boss protruding upward, the spacer ring middle part are formed with the embedding hole inlayed for the boss, and first plastic rubber mirror is on chip Timing, the boss inlay with stretch out in embedding hole and upwards after insertion open the arc depression made on the plastic lens lower end surface In portion, first plastic lens and plastic lens are matched by concaveconvex structure and inlay assembly.

5. a kind of automotive rear-view camera lens of wide viewing angle according to any one of claims 1 to 4, it is characterised in that, it is described The outer diameter of camera lens is φ 14.00mm, and the height of the camera lens is 11.80mm.