CN208588855U - Mitigate the mobile lens of interference of stray light - Google Patents
Mitigate the mobile lens of interference of stray light Download PDFInfo
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- CN208588855U CN208588855U CN201821411459.0U CN201821411459U CN208588855U CN 208588855 U CN208588855 U CN 208588855U CN 201821411459 U CN201821411459 U CN 201821411459U CN 208588855 U CN208588855 U CN 208588855U
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- lens
- stray light
- wing
- shaped structure
- eyeglass
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Abstract
The utility model discloses the mobile lens for mitigating interference of stray light, including the multi-disc eyeglass being mounted in lens barrel, every eyeglass includes serving as the main part of imaging area and by the outwardly extending peripheral portion of main part, the peripheral portion of the object side of at least a piece of eyeglass is wing-shaped structure, and the wing-shaped structure is lens surface equipped with multiple continuously to the arc convex of object lateral projections.The straight length portion of previous eyeglass is become into continuous arc convex, changes the path of stray light using the curature variation of arc convex, stray light is turned to other places, guarantees that stray light will not be presented on focal plane.
Description
Technical field
The utility model relates to optical imaging fields, and in particular to a kind of mobile lens for mitigating interference of stray light.
Background technique
Mobile phone increasingly becomes inferior to light and short, therefore in the case where image extraction module accounts for certain space by sensor, hand
Machine camera lens need to have short distance imaging capability, the precision and system that each component and assembling are required in narrow and limited space
It makes tolerance must be relatively stringent and to be promoted, opposite spuious light quality is also strict with together.Stray light is exactly unwanted makes an uproar
Light, from the point of view of mobile lens, there are many reason of stray light occurs, mainly by mechanical-optical setup, visual field outer light source or incomplete
What optical element generated, the origin cause of formation of stray light has much in imaging systems, for example because image planes defocus is either by bright light
Source is directed across all optical components at the light other than ghost the same picture referred to as ghost or visual field and is directly entered burnt put down
Be referred to as directly incident on face, in addition also have because scattering light source enters optical system, in optical system caused by it is multiple scattered
It penetrates light to eventually enter into focal plane, furthermore the edge diffraction of over-the-counter light source via hole diameter diaphragm generation is also one of stray light
Important sources.
Existing lens imaging group become lens barrel, eyeglass, optical filter and photosensory assembly, take into account relative illumination, resolution ratio or
Under the premise of other optical properties, spuious optical issue is that veiling glare point is carried out before design caused by solving or mitigating because of short square from imaging
Analysis, is then blocked on spuious light path with mylar or other components, this can not only occupy limited space in camera lens and
And can relative illumination, resolution ratio or other optical properties to camera lens cause significantly to decay.
Utility model content
The utility model provides a kind of mobile lens for mitigating interference of stray light, take into account eliminate under the premise of optical property or
Spuious optical issue caused by mitigating because of short distance imaging.
The utility model is achieved through the following technical solutions:
The mobile lens for mitigating interference of stray light, including the multi-disc eyeglass being mounted in lens barrel, every eyeglass includes serving as
The main part of imaging area and by the outwardly extending peripheral portion of main part, the peripheral portion of the object side of at least a piece of eyeglass is wing
Structure, the wing-shaped structure are on lens surface at least provided with an arc convex to object lateral projections.
Further, the eyeglass successively includes the first lens, the second lens, the third lens and by object side to image side surface
Four lens, first lens, the second lens, the third lens and the 4th lens are separately mounted to four peaces that lens barrel inner wall is equipped with
On dress face, the peripheral portion of the third lens object side is wing-shaped structure.
Further, there are gaps between the wing-shaped structure of the third lens and the second lens image side surface.
Further, the wing-shaped structure in the third lens is located at the lower half of the third lens peripheral portion.
Further, the wing-shaped structure of the third lens includes two continuous arc convex.
Compared to the prior art the utility model has the advantage that
The utility model is not necessarily to adjustment aperture diaphragm, starts with from lens structure, the straight length portion of previous eyeglass is become
Continuous arc convex changes the path of stray light using the curature variation of arc convex, turns stray light extremely other places,
Guarantee that stray light will not be presented on focal plane, achieve the effect that elimination or mitigate stray light, does not influence the whole optics of camera lens
Performance.
Detailed description of the invention
Fig. 1 is existing design structural schematic diagram.
Fig. 2 is the utility model structure diagram.
Fig. 3 is existing design veiling glare path profile.
Fig. 4 is the utility model veiling glare incident path figure.
Specific embodiment
The mobile lens of mitigation interference of stray light as shown in Figure 1,2,3, 4, including 4 eyeglasses being mounted in lens barrel,
Every eyeglass includes serving as the main part 6 of imaging area and by the outwardly extending peripheral portion 7 of main part, the object of at least a piece of eyeglass
The peripheral portion 7 of side is wing-shaped structure, and the wing-shaped structure is at least provided with one on lens surface to object lateral projections
Arc convex 8.
In the present embodiment, eyeglass successively includes the first lens 1, the second lens 2, the third lens 3 by object side to image side surface
With the 4th lens 4, first lens 1, the second lens 2, the third lens 3 and the 4th lens 4 are separately mounted to 5 inner wall of lens barrel and set
On four mounting surfaces having, four mounting surfaces are four step surfaces, and it is adjacent next to installation that lens periphery withstands step surface front and back.
The peripheral portion 7 of 3 object side of the third lens is wing-shaped structure, 2 image side of the wing-shaped structure of the third lens 3 and the second lens
There are gaps between face.Wing-shaped structure in the third lens 3 is located at the lower half of the peripheral portion 7 of the third lens 3, and light passes through five
A lens pass back through eyeglass by reflection after throwing on photosensory assembly 11 and are incident upon on the inner wall of lens barrel, are then reflected onto again
On wing-shaped structure, these can be reflected into the veiling glare come and largely be reflected into other positions by the Curvature varying of wing-shaped structure, greatly
The probability being reflected on photosensory assembly is reduced greatly, to reduce stray light.The wing-shaped structure of the third lens 3 includes two continuous
Arc convex 8, the effect for clearing up veiling glare are more preferable.
Claims (5)
1. mitigating the mobile lens of interference of stray light, including the multi-disc eyeglass being mounted in lens barrel, it is characterized in that: every eyeglass packet
Include the main part (6) for serving as imaging area and by the outwardly extending peripheral portion of main part (7), the object side of at least a piece of eyeglass
Peripheral portion (7) is wing-shaped structure, and the wing-shaped structure is on lens surface at least provided with an arc to object lateral projections
Raised (8).
2. it is according to claim 1 mitigate interference of stray light mobile lens, it is characterized in that: the eyeglass by object side extremely
Image side surface successively includes the first lens (1), the second lens (2), the third lens (3) and the 4th lens (4), first lens
(1), the second lens (2), the third lens (3) and the 4th lens (4) are separately mounted to four mounting surfaces that lens barrel (5) inner wall is equipped with
On, the peripheral portion (7) of the third lens (3) the object side is wing-shaped structure.
3. the mobile lens according to claim 2 for mitigating interference of stray light, it is characterized in that: the third lens (3)
There are gaps between wing-shaped structure and the second lens (2) image side surface.
4. the mobile lens according to claim 2 or 3 for mitigating interference of stray light, it is characterized in that: the third lens (3)
On wing-shaped structure be located at the third lens (3) peripheral portion (7) lower half.
5. the mobile lens according to claim 4 for mitigating interference of stray light, it is characterized in that: the third lens (3)
Wing-shaped structure includes two continuous arc convex (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821411459.0U CN208588855U (en) | 2018-08-30 | 2018-08-30 | Mitigate the mobile lens of interference of stray light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821411459.0U CN208588855U (en) | 2018-08-30 | 2018-08-30 | Mitigate the mobile lens of interference of stray light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208588855U true CN208588855U (en) | 2019-03-08 |
Family
ID=65545751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821411459.0U Active CN208588855U (en) | 2018-08-30 | 2018-08-30 | Mitigate the mobile lens of interference of stray light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208588855U (en) |
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2018
- 2018-08-30 CN CN201821411459.0U patent/CN208588855U/en active Active
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