CN210038291U - Space ring for reducing stray light of camera - Google Patents
Space ring for reducing stray light of camera Download PDFInfo
- Publication number
- CN210038291U CN210038291U CN201920737049.3U CN201920737049U CN210038291U CN 210038291 U CN210038291 U CN 210038291U CN 201920737049 U CN201920737049 U CN 201920737049U CN 210038291 U CN210038291 U CN 210038291U
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- light
- inclined plane
- stray light
- hole
- camera
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- Lens Barrels (AREA)
Abstract
The utility model discloses a spacing ring for reducing stray light of a camera, which comprises an annular body, wherein the center of the annular body is provided with a light through hole, and the inner side wall of the light through hole is provided with a sawtooth-shaped light scattering structure; the light through hole is in a circular truncated cone shape, namely the aperture of the light through hole is gradually increased from bottom to top; the sawtooth profile astigmatism structure comprises a V-shaped inclined plane and a sawtooth top inclined plane clamped in the middle of the V-shaped inclined plane, and two side edge surfaces forming the V-shaped inclined plane form an included angle with the sawtooth top inclined plane: 135 deg. By the utility model discloses the structure can know, changes traditional spacer ring outside mode of adjusting luminance, makes stray light through cockscomb structure astigmatism structure through multiple reflection or refraction, from the inside route that changes the light of spacer ring, alleviates stray light, and then solves the problem that stray light formation of image formed Ghost (Ghost) or facula (Flare), and then improves the shooting effect and shoots the quality.
Description
Technical Field
The utility model belongs to the technical field of optics and specifically relates to a alleviate stray light's of camera spacer ring.
Background
The camera assembly comprises a lens barrel, plastic lenses, a shading sheet and a spacing ring, wherein the plastic lenses, the shading sheet and the spacing ring are arranged in the lens barrel, the shading sheet is used for shading extra light rays in an optical system, and the spacing ring is arranged between the two plastic lenses on the left side and the right side and used for controlling the distance between the two plastic lenses. Any part in the camera assembly can generate stray light due to an inclined plane or an angle (acute angle, sharp angle) and the like, the traditional mode adjusts the stray light by adjusting the position relation of the spacing ring and the light shielding sheet, the effect is poor, and the stray light cannot be inhibited or eliminated.
Stray light is non-effective light in an optical system, and is subjected to Ghost (Ghost) or Flare (Flare) caused by multiple reflection in an effective aperture, mechanism reflection or light reflection outside the effective aperture, and the stray light influences normal imaging, so that the shooting effect and the shooting quality are reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a alleviate stray light spacer ring of camera, overcome prior art's defect, solve stray light formation of image and form Ghost (Ghost) or facula (Flare), and then reduce the problem of shooting effect, shooting quality.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a alleviate stray light's of camera spacer ring, includes the annular body, annular body center department is logical unthreaded hole, it is equipped with cockscomb structure astigmatism structure to lead to the unthreaded hole inside wall.
The utility model discloses a further improvement is, it is round platform form to lead to the unthreaded hole, leads to the unthreaded hole aperture and from lower to upper crescent promptly.
The utility model discloses a further improvement is, cockscomb structure astigmatism structure comprises "V font" inclined plane, the sawtooth top inclined plane of pressing from both sides in the middle of "V style of calligraphy" inclined plane, and the both sides arris face that forms "V font" inclined plane is with sawtooth top inclined plane contained angle: 120-150 degrees.
The utility model discloses a further improvement scheme is, the both sides arris face and the sawtooth top inclined plane contained angle that form "V font" inclined plane do: 135 deg.
The utility model discloses a further improvement scheme is, sawtooth top slope is "equilateral triangle", sawtooth top inclined plane area is by supreme crescent down promptly.
The utility model discloses a further improvement scheme is, and the recess that is located between sawtooth and the sawtooth is that annular body radial arrangement and recess both sides wall open-top width are unanimous, and recess top is unanimous to the open-top degree of depth.
The utility model discloses a further improvement is, the angle is between the generating line of round platform form logical unthreaded hole and the axis that leads to the unthreaded hole: 12 to 26 degrees.
The utility model discloses a further improvement scheme is, the angle is 24 between the generating line of round platform form logical unthreaded hole and the axis that leads to the unthreaded hole.
The utility model discloses a further improvement scheme is, the whole material of spacer ring is made for the PC material.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a pair of alleviate stray light spacer ring of camera, logical unthreaded hole is the round platform form, leads to the unthreaded hole aperture promptly by the crescent of lower up, and light is from up through leading to the unthreaded hole down, satisfies original optical design's light path demand like this, can not cause "the problem of sheltering from original design light path" like this, can not shelter from effective light promptly.
Two, the utility model provides a pair of alleviate stray light's of camera spacer ring, sawtooth top inclined plane is "equilateral triangle", and sawtooth top inclined plane area is by lower supreme crescent promptly, and the width of the design recess of being convenient for like this satisfies the optics design demand, does not shelter from original design light path.
Three, the utility model provides a pair of alleviate stray light spacer ring of camera, the recess that is located between sawtooth and the sawtooth is that annular body radial arrangement and recess both sides wall open-top width are unanimous, and recess top is unanimous to the open-top degree of depth, can not cause "the problem of sheltering from original design light path" like this, can not shelter from effective light promptly.
Four, the utility model provides a pair of alleviate stray light's spacer ring of camera changes the outside mode of adjusting luminance of traditional spacer ring, makes stray light through cockscomb structure astigmatism and reflects or refracts many times, changes the route of light from the spacer ring is inside, alleviates stray light, and then solves the problem that stray light formation of image formed Ghost (Ghost) or facula (Flare), improves the shooting effect and shoots the quality.
Drawings
Fig. 1 is a perspective view of the overall structure of the present invention.
Fig. 2 is a top view of the overall structure of the present invention.
Fig. 3 is a sectional view of the whole structure a-a of the present invention.
Fig. 4 is a partial enlarged view of the saw-toothed astigmatic structure of the present invention.
Detailed Description
The present invention will be further clarified by the following detailed description, which is to be understood as being given by way of illustration only, and not by way of limitation, of the scope of the invention, which, after reading the present invention, is intended to fall within the scope of the appended claims, as modified by those skilled in the art in various equivalent forms.
Example 1: as shown in fig. 1 to 4, the spacer ring for reducing stray light of a camera includes an annular body 1, a light through hole 2 is formed in the center of the annular body 1, and a sawtooth-shaped light scattering structure 3 is arranged on the inner side wall of the light through hole 2; the light through hole 2 is in a circular truncated cone shape, namely the aperture of the light through hole 2 is gradually increased from bottom to top; jagged light scattering structure 3 comprises "V font" inclined plane 31, the sawtooth top inclined plane 32 of pressing from both sides in "V font" inclined plane 31 centre, and the both sides arris face and the sawtooth top inclined plane 32 contained angle that form "V font" inclined plane 31 are: 120-150 degrees; the included angle between the two side edge surfaces forming the V-shaped inclined surface 31 and the sawtooth top inclined surface 32 is as follows: 135 degrees; the sawtooth top inclined plane 32 is in an equilateral triangle shape, namely the area of the sawtooth top inclined plane 32 is gradually increased from bottom to top; the grooves 5 between the sawteeth are radially arranged in the annular body 1, the top openings of the two side walls of the grooves 5 are consistent in width, and the depth from the top of each groove 5 to the top opening is consistent; the angle between the generatrix of the circular truncated cone-shaped light through hole 2 and the axis of the light through hole 2 is as follows: 12 to 26 degrees; the angle between the generatrix of the circular truncated cone-shaped light through hole 2 and the axis of the light through hole 2 is 24 degrees; the whole material of spacer ring is made for the PC material.
The utility model discloses a use as follows: pack into the camera with the spacer ring inside, do not need the complicated position relation of going to adjust spacer ring and anti-dazzling screen, just can relax restrain or eliminate stray light for stray light can not form images on image plane, the utility model discloses from changing spacer ring inner structure, design into cockscomb structure astigmatism structure and then change stray light reflection or refraction route, in order to reach the purpose of restraining or eliminating stray light.
Claims (8)
1. The utility model provides a alleviate stray light's of camera spacer ring which characterized in that: including annular body (1), annular body (1) center department is for leading to unthreaded hole (2), it is equipped with cockscomb structure astigmatism structure (3) to lead to unthreaded hole (2) inside wall, cockscomb structure astigmatism structure (3) comprise by "V font" inclined plane (31), press from both sides sawtooth top inclined plane (32) in the middle of "V font" inclined plane (31), and the both sides arris face that forms "V font" inclined plane (31) is with sawtooth top inclined plane (32) contained angle: 120-150 degrees.
2. The spacer ring for reducing stray light of a camera of claim 1, wherein: the light through hole (2) is in a round table shape, namely the aperture of the light through hole (2) is gradually increased from bottom to top.
3. The spacer ring for reducing stray light of a camera of claim 2, wherein: the included angle between the edge surfaces at two sides of the V-shaped inclined surface (31) and the inclined surface (32) at the top of the sawtooth is as follows: 135 deg.
4. A spacer ring for reducing stray light from a camera as claimed in claim 3, wherein: the sawtooth top inclined plane (32) is in an equilateral triangle shape, namely the area of the sawtooth top inclined plane (32) is gradually increased from bottom to top.
5. The spacer ring for reducing stray light of a camera of claim 4, wherein: the grooves (5) between the sawteeth are radially arranged on the annular body (1), the widths of openings at the tops of two side walls of the grooves (5) are consistent, and the depths from the tops of the grooves (5) to the openings at the tops are consistent.
6. The spacer ring for reducing stray light of a camera of claim 2, wherein: the angle between the generatrix of the circular truncated cone-shaped light through hole (2) and the axis of the light through hole (2) is as follows: 12 to 26 degrees.
7. The spacer ring for reducing stray light of a camera of claim 6, wherein: the angle between the generatrix of the circular truncated cone-shaped light through hole (2) and the axis of the light through hole (2) is 24 degrees.
8. The spacer ring for reducing stray light of a camera of claim 1, wherein: the whole material of spacer ring is made for the PC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920737049.3U CN210038291U (en) | 2019-05-22 | 2019-05-22 | Space ring for reducing stray light of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920737049.3U CN210038291U (en) | 2019-05-22 | 2019-05-22 | Space ring for reducing stray light of camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210038291U true CN210038291U (en) | 2020-02-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920737049.3U Active CN210038291U (en) | 2019-05-22 | 2019-05-22 | Space ring for reducing stray light of camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210038291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113625414A (en) * | 2020-05-06 | 2021-11-09 | 玉晶光电(厦门)有限公司 | Lens barrel |
| CN113805299A (en) * | 2020-06-11 | 2021-12-17 | 玉晶光电(厦门)有限公司 | Gasket ring |
-
2019
- 2019-05-22 CN CN201920737049.3U patent/CN210038291U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113625414A (en) * | 2020-05-06 | 2021-11-09 | 玉晶光电(厦门)有限公司 | Lens barrel |
| CN113625414B (en) * | 2020-05-06 | 2024-01-16 | 玉晶光电(厦门)有限公司 | Lens barrel |
| CN113805299A (en) * | 2020-06-11 | 2021-12-17 | 玉晶光电(厦门)有限公司 | Gasket ring |
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