CN208569152U - A kind of plastic cement lens barrel - Google Patents
A kind of plastic cement lens barrel Download PDFInfo
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- CN208569152U CN208569152U CN201821268444.3U CN201821268444U CN208569152U CN 208569152 U CN208569152 U CN 208569152U CN 201821268444 U CN201821268444 U CN 201821268444U CN 208569152 U CN208569152 U CN 208569152U
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- China
- Prior art keywords
- lens barrel
- stand terrace
- plastic cement
- protrusion
- lens
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Abstract
The utility model discloses a kind of plastic cement lens barrels, including lens barrel main body, one end of the lens barrel main body is object end, the other end is as end, it is described as being provided through stepped hole between end and object end, it is formed in the stepped hole as end stand terrace, described as multiple protrusions for supports lens are arranged on end stand terrace, the upper surface of each protrusion is in same level.Using the upper surface of multiple protrusions as the bearing surface for bearing against eyeglass, the contact area of lens barrel and eyeglass can be effectively reduced, reduce the deviations from planarity of bearing surface, thereby reduce influence of the flatness as end stand terrace to optical system, guarantee that the tilt tolerance of entire optical system lens is met the requirements, improves the image quality of lens module.
Description
Technical field
The utility model relates to the modelings on a kind of bogey of optical lens more particularly to a kind of vehicle-mounted traveling recorder
Glue lens barrel.
Background technique
Automobile data recorder mould group industry development is more rapid, and should continue because car gage promoted due to receive benefits, in addition with
Countries regulation automobile vehicle-running recording system must be installed, but also the sector is full of vitality, and on-vehicle lens are drivings
Indispensable component in recorder.
Plastic cement lens barrel guarantees that the optical parameters such as the distance between any two lens are met the requirements for carrying lens.Plastic cement
Lens barrel is known as with the face that lens holding face directly contacts as end stand terrace, and the offset that flatness will affect entire optical system is inclined
Gradient, therefore, the property of plastic cement lens barrel bottom surface will have a direct impact on the image quality of lens module.
Common lens barrel is generally plastic cement material, is manufactured using injection molding method, the size of on-vehicle lens generally compared with
Greatly, and plastic material mobility is poor, after causing lens barrel to be injection moulded, as the flatness of end stand terrace is poor, thus can not
Guarantee that the tilt tolerance of entire optical system lens is met the requirements.
In conclusion how to improve the picture end step surface structure of lens barrel, guarantee the lens barrel being in contact with the breasting face of lens
As the flatness of end stand terrace, to reduce inclination of the optical system to image planes, have become very urgent research direction.
The utility model is namely based on what such case was made.
Utility model content
In view of this, the utility model aim is to overcome the deficiencies in the prior art, provide that a kind of structure is simple, Neng Goubao
The tilt tolerance for demonstrate,proving entire optical system lens meets the requirements, improves the plastic cement lens barrel of the image quality of lens module.
The utility model be solve its technical problem and the technical solution adopted is that:
A kind of plastic cement lens barrel, including lens barrel main body, one end of the lens barrel main body are object end, and the other end is picture end,
It is described to be formed as being provided through stepped hole between end and object end, in the stepped hole as end stand terrace, it is described as end stand
Multiple protrusions for supports lens are set on terrace, and the upper surface of each protrusion is in same level.
A kind of plastic cement lens barrel as described above, each protrusion are evenly arranged around the axis of the stepped hole.
A kind of plastic cement lens barrel as described above, the protrusion is in cylindrical, and the diameter of the protrusion is denoted as d, the picture
End stand terrace is in circular ring shape, and the outer ledge as end stand terrace is formed by diameter of a circle and is denoted as D1, described as end stand rank
The inside edge in face is formed by diameter of a circle and is denoted as D2, D1、D2Meet following relationship with the value of d: (D1-D2)/5<d<(D1-
D2)。
A kind of plastic cement lens barrel as described above, it is described as the distance between end stand terrace outer ledge and inside edge are denoted as
L1, the protrusion is denoted as L at a distance from as end stand terrace inside edge2, L1、L2Meet following two relationship simultaneously with the value of d
Formula:
L1/3<d<L1/2.8；
L1/3.3<L2<L1/3。
A kind of plastic cement lens barrel as described above, the quantity of the protrusion are 8 or 10, and the height of the protrusion is denoted as h,
The value of d and h meets following relationship: 0.01mm < h < d/10.
A kind of plastic cement lens barrel as described above, the protrusion be an integral molding structure as end.
Compared with prior art, the utility model has the following advantages:
1, the utility model can be effectively reduced using the upper surface of multiple protrusions as the bearing surface for bearing against eyeglass
The contact area of lens barrel and eyeglass reduces the deviations from planarity of bearing surface, thereby reduces the flatness pair as end stand terrace
The influence of optical system guarantees that the tilt tolerance of entire optical system lens is met the requirements, improves the image quality of lens module.
2, raised diameter meets relational expression: (D1-D2)/5<d<(D1-D2), such design can guarantee lens barrel bottom surface
There is moderate contact surface size with the contact surface of eyeglass, the upper surface of protrusion can be made to reach higher flatness, reduces injection molding
Influence of the buckling deformation amount to upper convex surface flatness in forming process as the generation of end stand terrace edge, can be better
Guarantee the inclined tolerance of optical lens group, improves the image quality of lens module.
3, the protrusion is set to as intermediate position close on end stand terrace, and meets following two relational expression: L1/3<
d<L1/2.8；L1/3.3<L2<L1/3.It can guarantee in this way as end stand terrace uniform force, while reduce in injection molding process
As influence of the buckling deformation to upper convex surface flatness that end stand terrace edge occurs, it can preferably guarantee optical lens
The inclined tolerance of group, improves the image quality of lens module.
4, the protrusion facilitates mold to process, relative to separated molding, preferably guarantees picture with as end integrated molding
The depth of parallelism of end stand terrace and each protrusion, while convenience is brought to injection molding process.
5, raised 120 quantity is 8 or 10, and raised height and diameter meet: 0.01mm < h < d/10.This
Sample can guarantee that optical lens group and lens barrel have enough breasting faces, and can control upper convex surface flatness to optical lens
The influence of group, while making as end stand terrace uniform force, when assembling, are unlikely to deform.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is the partial enlarged view of part A in Fig. 1；
Fig. 3 is the structural schematic diagram of the utility model；
Fig. 4 is the plastic cement lens barrel of the utility model and the combination diagram of optical lens group.
Specific embodiment
Below in conjunction with attached drawing, the technical scheme in the utility model embodiment is clearly and completely described.
Referring to figs. 1 to Fig. 4, the utility model proposes a kind of plastic cement lens barrel, including lens barrel main body 1, the lens barrel main body 1
One end be object end 130, the other end be as end 110, it is described as being provided through platform between end 110 and object end 130
Rank hole 140, the stepped hole 140 are made of multiple coaxial cylinder hole sections, wherein being located at as the cylinder hole section of end 110 is the
The diameter of one cylinder hole section 111, the first cylinder hole section 111 is all smaller than other cylinder hole sections, the first cylinder hole section 111 with phase
It is formed between adjacent cylinder hole section as end stand terrace 113, it is described multiple for the convex of supports lens as being arranged on end stand terrace 113
120 are played, each raised 120 upper surface is in same level.Using each raised 120 upper surface as bearing against eyeglass
Bearing surface can effectively reduce the contact area of lens barrel and eyeglass, reduce the deviations from planarity of bearing surface, thereby reduce picture
Influence of the flatness of end stand terrace 113 to optical system, improves the image quality of lens module.
It is evenly arranged in order to make eyeglass uniform force, each raised 120 around the axis of the stepped hole 140.
Protrusion 120 be integrated injection molding structure as end 110, facilitate mold to process, relative to separated molding, more preferably
Guarantee as end stand terrace 113 and each raised 120 depth of parallelism, while bringing convenience to injection molding process.
Described raised 120 be in cylindrical, and raised 120 diameter is denoted as d, described as end stand terrace 113 is in annulus
Shape, the outer ledge as end stand terrace 113 are formed by diameter of a circle and are denoted as D1, the inside as end stand terrace 113
Edge is formed by diameter of a circle and is denoted as D2, D1、D2Meet following relationship with the value of d: (D1-D2)/5<d<(D1-D2)。
Such design can guarantee that the contact surface of lens barrel bottom surface and eyeglass has moderate contact surface size, can make protrusion
120 upper surface reaches higher flatness, reduces in injection molding process as the warpage that 113 edge of end stand terrace occurs becomes
Influence of the shape amount to raised 120 top surface plane degree, can preferably guarantee the inclined tolerance of optical lens group 1100, improve mirror
The image quality of head module.
Described raised 120 are set to as intermediate position close on end stand terrace 113, described as 113 outside of end stand terrace
The distance between edge and inside edge are denoted as L1, described raised 120 are denoted as L at a distance from as 113 inside edge of end stand terrace2,
L1、L2Meet following two relational expression simultaneously with the value of d:
L1/3<d<L1/2.8；
L1/3.3<L2<L1/3。
It can guarantee in this way as 113 uniform force of end stand terrace, while reduce in injection molding process as end stand terrace 113
Influence of the buckling deformation that edge occurs to raised 120 top surface plane degree, can preferably guarantee optical lens group 1100
Inclined tolerance improves the image quality of lens module.
Raised 120 quantity is 8 or 10, and the value that raised 120 height is denoted as h, d and h meets following
Relational expression: 0.01mm < h < d/10.
It can guarantee that optical lens group 1100 and lens barrel have enough breasting faces in this way, and can control table in protrusion 120
Influence of the facial plane degree to optical lens group 1100, while making as 113 uniform force of end stand terrace, when assembling, are unlikely to become
Shape.
Here is a kind of parameter designing case of plastic cement lens barrel of the utility model, and wherein n is the quantity of protrusion 120.
Embodiment one:
| d(mm) | h(mm) | D2(mm) | D1(mm) | n |
| 0.4 | 0.03 | 4.48 | 5.57 | 10 |
Embodiment two:
| d(mm) | h(mm) | D2(mm) | D1(mm) | n |
| 0.5 | 0.03 | 4.48 | 5.57 | 8 |
Embodiment three:
| d(mm) | h(mm) | D2(mm) | D1(mm) | n |
| 0.5 | 0.05 | 4.33 | 6.31 | 10 |
Example IV:
| d(mm) | h(mm) | D2(mm) | D1(mm) | n |
| 0.4 | 0.05 | 4.33 | 6.31 | 10 |
Claims (6)
1. a kind of plastic cement lens barrel, including lens barrel main body (1), one end of the lens barrel main body (1) is object end (130), the other end
It is described as being provided through stepped hole (140), the step between end (110) and object end (130) for picture end (110)
It is formed in hole (140) as end stand terrace (113), which is characterized in that described multiple for supporting as being arranged on end stand terrace (113)
The upper surface of the protrusion (120) of eyeglass, each protrusion (120) is in same level.
2. a kind of plastic cement lens barrel according to claim 1, which is characterized in that each protrusion (120) is around the stepped hole
(140) axis is evenly arranged.
3. a kind of plastic cement lens barrel according to claim 2, which is characterized in that the protrusion (120) is in cylindrical, described
The diameter of raised (120) is denoted as d, described as end stand terrace (113) are in circular ring shape, the outer side edges of picture end stand terrace (113)
Edge is formed by diameter of a circle and is denoted as D1, the inside edge as end stand terrace (113) is formed by diameter of a circle and is denoted as D2,
D1、D2Meet following relationship with the value of d: (D1-D2)/5<d<(D1-D2)。
4. a kind of plastic cement lens barrel according to claim 3, which is characterized in that described as end stand terrace (113) outer ledge
The distance between inside edge is denoted as L1, raised (120) are denoted as L at a distance from as end stand terrace (113) inside edge2,
L1、L2Meet following two relational expression simultaneously with the value of d:
L1/3<d<L1/2.8；
L1/3.3<L2<L1/3。
5. a kind of plastic cement lens barrel according to claim 3, which is characterized in that the quantity of the protrusion (120) is 8 or 10
A, the value that the height of the protrusion (120) is denoted as h, d and h meets following relationship: 0.01mm < h < d/10.
6. a kind of plastic cement lens barrel according to claim 1, which is characterized in that raised (120) are with as end (110)
Integrated formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821268444.3U CN208569152U (en) | 2018-08-07 | 2018-08-07 | A kind of plastic cement lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821268444.3U CN208569152U (en) | 2018-08-07 | 2018-08-07 | A kind of plastic cement lens barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208569152U true CN208569152U (en) | 2019-03-01 |
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ID=65449688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821268444.3U Active CN208569152U (en) | 2018-08-07 | 2018-08-07 | A kind of plastic cement lens barrel |
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| CN (1) | CN208569152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014831A (en) * | 2020-09-25 | 2020-12-01 | 闪耀现实(无锡)科技有限公司 | Sensing device, intelligent glasses and lens for sensing device |
-
2018
- 2018-08-07 CN CN201821268444.3U patent/CN208569152U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014831A (en) * | 2020-09-25 | 2020-12-01 | 闪耀现实(无锡)科技有限公司 | Sensing device, intelligent glasses and lens for sensing device |
| CN112014831B (en) * | 2020-09-25 | 2024-04-26 | 闪耀现实(无锡)科技有限公司 | Sensing device, intelligent glasses and lens for sensing device |
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