CN110727075A - Optical lens - Google Patents
Optical lens Download PDFInfo
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- CN110727075A CN110727075A CN201911120848.7A CN201911120848A CN110727075A CN 110727075 A CN110727075 A CN 110727075A CN 201911120848 A CN201911120848 A CN 201911120848A CN 110727075 A CN110727075 A CN 110727075A
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- Prior art keywords
- lens
- lens barrel
- bearing surface
- combination
- shielding
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The present invention relates to an optical lens comprising: the lens comprises a lens barrel (1), and a lens (2) and a space ring (3) which are arranged in the lens barrel (1); the space ring (3) comprises a mounting part (301) and a shielding part (302) connected with the mounting part (301); the mounting part (301) comprises a first combination surface (3011) which is abutted with the inner wall of the lens barrel (1) and a second combination surface (3012) which is abutted with the lens (2) along the axial direction of the lens barrel (1); along the radial direction of the lens barrel (1), the first combination surface (3011) comprises a first bearing surface (3011a), the second combination surface (3012) comprises a second bearing surface (3012a), and the first bearing surface (3011a) and the second bearing surface (3012a) are used for radial positioning of the space ring (3) at the same time. The optical lens can solve the problems of stray light and reliability, has reasonable structural arrangement, ensures that a true buckle is arranged between the space ring and the lens cone, and has good molding process.
Description
Technical Field
The invention relates to the technical field of optical systems, in particular to an optical lens with a spacer ring and a lens cone which are stably buckled.
Background
At present, miniaturized optical systems are continuously applied to smart devices such as mobile phones and tablet computers. The optical system comprises a lens barrel, a space ring and a lens, wherein the space ring and the lens are arranged in the lens barrel. It has been found that there are some problems with the conventional lens barrel fitting method: the lens has the defects of much stray light, poor reliability, too thick lens and too thick lens cone.
Disclosure of Invention
The present invention is directed to solving the above problems and to providing an optical lens.
To achieve the above object, the present invention provides an optical lens comprising: the lens barrel, and the lens and the space ring which are arranged in the lens barrel; the space ring comprises an installation part and a shielding part connected with the installation part; the mounting part comprises a first combination surface abutted with the inner wall of the lens barrel and a second combination surface abutted with the lens along the axial direction of the lens barrel; along the radial direction of the lens barrel, the first combination surface comprises a first bearing surface, the second combination surface comprises a second bearing surface, and the first bearing surface and the second bearing surface are simultaneously used for radial positioning of the space ring.
According to an aspect of the present invention, the lens includes a connection portion abutting the mounting portion and an optically effective portion connected to the connection portion;
the connecting part comprises a third combination surface abutted with the second combination surface, and the third combination surface comprises a connecting surface abutted with the second bearing surface and a transition surface connected with the connecting surface and close to the optical effective part;
the connecting surface and the second bearing surface are matched with each other.
According to one aspect of the present invention, the lens barrel includes a mounting surface disposed in cooperation with the first bearing surface;
the first bearing surface, the mounting surface, the second bearing surface and the connecting surface are inclined surfaces, the inclination angle is beta, and the beta is more than or equal to 10 degrees.
According to an aspect of the present invention, the shielding portion includes a first shielding face opposite to an inner wall of the lens barrel, and a second shielding face opposite to the transition face;
gaps are arranged between the first shielding surface and the inner wall of the lens barrel and between the second shielding surface and the transition surface, and the width of the gap is larger than or equal to 0.01 mm.
According to one aspect of the invention, the mounting portion of the spacer further comprises a spacer outer edge surface located on the outermost side, and the connecting portion of the lens further comprises a lens outer edge surface located on the outermost side;
gaps are arranged between the outer edge surface of the spacing ring and the inner wall of the lens barrel and between the outer edge surface of the lens and the inner wall of the lens barrel, and the width of each gap is more than or equal to 0.005 mm.
According to one aspect of the invention, the spacer is made of plastic or metal.
According to one aspect of the present invention, the mounting portion of the spacer includes a first combining surface and a second combining surface along the axial direction of the lens barrel, the first combining surface abuts against an inner wall of a corresponding position of the lens barrel, and the second combining surface abuts against a corresponding portion of the lens. Therefore, the true buckling, namely the stable buckling relation between the space ring and the lens barrel and between the space ring and the lens barrel is realized, so that the optical lens can solve the problems of stray light and reliability. Meanwhile, the spacer ring which is stably buckled is arranged between the lens barrel and the lens, so that the forming process of the optical lens is better, and the assembly is more convenient.
According to one aspect of the invention, the spacer has a dual positioning guarantee of axial positioning and radial positioning, the axial positioning depends on mutual abutment with the lens barrel and the lens, and the radial positioning is formed by the arrangement of the first bearing surface and the second bearing surface.
According to one scheme of the invention, the first bearing surface, the mounting surface, the second bearing surface and the connecting surface are all inclined surfaces, the inclination angle of each inclined surface is beta, and the beta is more than or equal to 10 degrees. So set up, not only make the space ring radial positioning to realize, make moreover to install the in-process of assemblage and play the effect of assemblage direction at optical lens for the assemblage process is swift more smoothly, has also realized forming the above-mentioned effect of stabilizing the lock complex.
According to one scheme of the invention, the total thickness of the optical lens is shared by the thickness of the lens barrel, the thickness of the space ring and the thickness of the lens, so that the formability of each part of the optical lens is better, the forming process is better, and the technical problems that the lens barrel is too thick due to the thickness, the forming process is not good, stray light exists, the reliability is poor and the like in the prior art are further solved.
According to one scheme of the invention, gaps are arranged between the first shielding surface and the inner wall of the lens barrel and between the second shielding surface and the transition surface, the width e1 of the gap is more than or equal to 0.01mm, and the width e2 of the gap is more than or equal to 0.01 mm. Gaps are also arranged between the outer edge surface of the spacing ring and the inner wall of the lens barrel and between the outer edge surface of the lens and the inner wall of the lens barrel, the width g1 of the gap is more than or equal to 0.005mm, and the width g2 of the gap is more than or equal to 0.005 mm. Due to the arrangement, the optical lens disclosed by the invention can be ensured to have reasonable structural arrangement, the spacer ring and the lens cone are ensured to be true buckled, namely, a stable buckling and matching connection relation is realized, and meanwhile, the influence on the performance caused by different thermal expansion coefficients and different shrinkage sizes of the lens cone, the spacer ring and the lens after being heated can be prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 and 2 schematically show an internal structure of a conventional optical lens;
fig. 3 and 4 schematically show a structural view of an optical lens according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In describing embodiments of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship that is based on the orientation or positional relationship shown in the associated drawings, which is for convenience and simplicity of description only, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above-described terms should not be construed as limiting the present invention.
The present invention is described in detail below with reference to the drawings and the specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.
Fig. 1 and 2 schematically show internal structural views of a conventional optical lens. As shown in fig. 1 and 2, in the conventional optical lens, the lens and the lens barrel are directly assembled together, and no other connecting structure is provided between the lens and the lens barrel, so that the optical lens has the disadvantages of a large amount of stray light, poor reliability (the lens is tested in high temperature and high humidity type and mechanical type) and poor molding process.
Fig. 3 and 4 schematically show a structural view of an optical lens according to an embodiment of the present invention. As shown in fig. 3 and 4, an optical lens according to the present invention includes a lens barrel 1, and a lens 2 and a spacer 3 mounted in the lens barrel 1. In the present invention, the space ring 3 is made of plastic or metal (e.g., a metal material such as lead-free brass). As shown in fig. 3, in the present embodiment, the spacer 3 includes a mounting portion 301 and a shielding portion 302, and the mounting portion 301 is used to connect with corresponding portions of the lens barrel 1 and the lens 2 to form a mounting position for the spacer 3.
As shown in fig. 3, in the present embodiment, the mounting portion 301 of the spacer 3 includes a first combination surface 3011 and a second combination surface 3012 along the axial direction of the lens barrel 1, that is, the left-right direction in the drawing, the first combination surface abuts against the inner wall of the lens barrel 1 at the corresponding position, and the second combination surface 3012 abuts against the corresponding portion of the lens 2. Therefore, the true buckling, namely the stable buckling relation between the spacing ring 3 and the lens barrel 1 and the lens 2 is realized, and the optical lens of the invention can solve the problems of stray light and reliability. Meanwhile, the spacing ring 3 which is stably buckled is arranged between the lens barrel and the lens, so that the forming process of the optical lens is better, and the assembly is more convenient.
Further, as shown in fig. 3 and 4, in the present embodiment, the first combination surface 3011 includes a first support surface 3011a and a first support surface 3011b connected to the first support surface 3011 a. The second combined face 3012 includes a second bearing face 3012a and a second bearing face 3012b connected to the second bearing face 3012 a. In this embodiment, the first and second bearing surfaces 3011a and 3012a are configured to radially position the cage. It can be seen that, in the present invention, the spacer 3 has a dual positioning guarantee of axial positioning by abutting against the lens barrel 1 and the lens 2, and radial positioning by the arrangement of the first and second bearing surfaces 3011a and 3012 a.
As shown in fig. 3 and 4, in the present embodiment, the lens 2 includes a connection portion 201 abutting on the attachment portion 301 and an optically effective portion 202 connected to the connection portion 201. The connecting portion 201 includes a third combination surface 2011 abutted against the second combination surface 3012, as shown in the figure, the third combination surface 2011 and the second combination surface 3012 are cooperatively disposed, and the third combination surface 2011 includes a connection surface 2011a abutted against the second support surface 3012a and a transition surface 2011b connected to the connection surface 2011a and close to the optical effective portion 202. Similarly, in the present invention, the connection surface 2011a and the second seating surface 3012a are cooperatively disposed.
As shown in fig. 3 and 4, in the present embodiment, the lens barrel 1 includes a mounting surface a that is fitted to the first seating surface 3011 a. As shown in the figure, the first bearing surface 3011a, the mounting surface a, the second bearing surface 3012a and the connecting surface 2011a are all inclined surfaces, and in the present embodiment, the inclination angle of the inclined surfaces is β, and β is equal to or greater than 10 °. So set up, not only make as above the radial location of space ring 3 realize, make moreover to install the effect that the in-process of assemblage played the assemblage direction at optical lens for the assemblage process is swift more smoothly, and furtherly, has also realized forming the above-mentioned effect of stabilizing the lock complex. In addition, in the present invention, the first bearing surface 3011a and the second bearing surface 3012a may be arranged in other manners, for example, the first bearing surface 3011a and the second bearing surface 3012a have different slopes, or have different slope directions, etc., according to the technical idea of the present invention, as long as the connection relationship between the first bearing surface 3011a and the second bearing surface 3012a and the lens barrel 1 and the lens 2 can promote the positioning of the spacer 3 in the radial direction.
As shown in fig. 3, the total thickness a of the optical lens according to the present invention is divided by the thickness b of the lens barrel 1, the thickness c of the spacer 3 and the thickness d of the lens 2, so that the moldability of each part of the optical lens according to the present invention is better, the molding process is better, and the technical problems of the prior art that the lens barrel is too thick due to the thickness, the molding process is not good, and the lens barrel has stray light and poor reliability are further solved.
In addition, as shown in fig. 3 and 4, according to an embodiment of the present invention, the shielding portion 302 includes a first shielding surface 3021 opposite to the inner wall of the lens barrel 1, and a second shielding surface 3022 opposite to the transition surface 2011 b. Gaps are formed between the first shielding surface 3021 and the inner wall of the lens barrel 1 and between the second shielding surface 3022 and the transition surface 2011b, and the widths of the gaps are as shown by e1 and e2, in the embodiment, the width e1 of the gap is greater than or equal to 0.01mm, and the width e2 of the gap is greater than or equal to 0.01 mm.
Meanwhile, the mounting portion 301 of the spacer 3 further includes a spacer outer edge surface 3013 located on the outermost side, and the connecting portion 201 of the lens 2 further includes a lens outer edge surface 2012 located on the outermost side. Gaps are also formed between the spacer outer edge surface 3013 and the inner wall of the lens barrel 1 and between the lens outer edge surface 2012 and the inner wall of the lens barrel 1, the widths of the gaps are shown as g1 and g2 in the figure, in the embodiment, the width g1 of the gap is not less than 0.005mm, and the width g2 of the gap is not less than 0.005 mm. Due to the arrangement, the optical lens disclosed by the invention can be ensured to have reasonable structural arrangement, the space ring 3 and the lens cone 1 are ensured to be buckled really, namely, a stable buckling and matching connection relation is realized, and meanwhile, the influence on the performance caused by different thermal expansion coefficients and different shrinkage sizes of the lens cone 1, the space ring 3 and the lens 2 after being heated can be prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. An optical lens, comprising: the lens comprises a lens barrel (1), and a lens (2) and a space ring (3) which are arranged in the lens barrel (1); the space ring (3) comprises a mounting part (301) and a shielding part (302) connected with the mounting part (301); the mounting part (301) comprises a first combination surface (3011) which is abutted with the inner wall of the lens barrel (1) and a second combination surface (3012) which is abutted with the lens (2) along the axial direction of the lens barrel (1); along the radial direction of the lens barrel (1), the first combination surface (3011) comprises a first bearing surface (3011a), the second combination surface (3012) comprises a second bearing surface (3012a), and the first bearing surface (3011a) and the second bearing surface (3012a) are used for radial positioning of the space ring (3) at the same time.
2. An optical lens according to claim 1, characterized in that the lens (2) comprises a connecting portion (201) abutting the mount portion (301) and an optically effective portion (202) connected to the connecting portion (201);
the connecting part (201) comprises a third combination surface (2011) abutting against the second combination surface (3012), and the third combination surface (2011) comprises a connecting surface (2011a) abutting against the second bearing surface (3012a) and a transition surface (2011b) connected with the connecting surface (2011a) and close to the optical effective part (202);
the connecting surface (2011a) and the second bearing surface (3012a) are arranged in a matched mode.
3. The optical lens according to claim 2, characterized in that the lens barrel (1) comprises a mounting surface (a) arranged in cooperation with the first bearing surface (3011 a);
the first bearing surface (3011a), the mounting surface (A), the second bearing surface (3012a) and the connecting surface (2011a) are inclined planes, the inclination angle is beta, and the beta is larger than or equal to 10 degrees.
4. An optical lens according to claim 3, characterized in that the shielding portion (302) comprises a first shielding face (3021) opposite to the inner wall of the lens barrel (1), and a second shielding face (3022) opposite to the transition face (2011 b);
gaps are arranged between the first shielding surface (3021) and the inner wall of the lens barrel (1) and between the second shielding surface (3022) and the transition surface (2011b), and the width of each gap is larger than or equal to 0.01 mm.
5. The optical lens according to claim 4, characterized in that the mount portion (301) of the cage (3) further comprises an outermost cage rim surface (3013), and the connection portion (201) of the lens (2) further comprises an outermost lens rim surface (2012);
gaps are arranged between the outer edge surface (3013) of the spacing ring and the inner wall of the lens barrel (1) and between the outer edge surface (2012) of the lens and the inner wall of the lens barrel (1), and the width of each gap is more than or equal to 0.005 mm.
6. An optical lens according to any one of claims 1 to 5, characterized in that the spacer ring (3) is made of plastic or metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911120848.7A CN110727075A (en) | 2019-11-15 | 2019-11-15 | Optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911120848.7A CN110727075A (en) | 2019-11-15 | 2019-11-15 | Optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110727075A true CN110727075A (en) | 2020-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911120848.7A Pending CN110727075A (en) | 2019-11-15 | 2019-11-15 | Optical lens |
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| Country | Link |
|---|---|
| CN (1) | CN110727075A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114721110A (en) * | 2022-06-08 | 2022-07-08 | 江西联益光学有限公司 | Lens structure |
-
2019
- 2019-11-15 CN CN201911120848.7A patent/CN110727075A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114721110A (en) * | 2022-06-08 | 2022-07-08 | 江西联益光学有限公司 | Lens structure |
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