CN211014786U

CN211014786U - Optical lens

Info

Publication number: CN211014786U
Application number: CN201921977654.4U
Authority: CN
Inventors: 丁先翠; 李建军; 白洪涛; 戴付建; 赵烈烽
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-07-14
Anticipated expiration: 2029-11-15

Abstract

The utility model relates to an optical lens, include: 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. According to the utility model discloses an optical lens can solve stray light and reliability problem, and structural arrangement is reasonable, guarantees to be really detaining between space ring and the lens cone, and forming process is good.

Description

Optical lens

Technical Field

The utility model relates to an optical system technical field especially relates to an optical lens of stable lock between space ring and lens cone.

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

An object of the utility model is to solve above-mentioned problem, provide an optical lens.

To achieve the above object, the present invention provides an optical lens, including: 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 one aspect of the present invention, the lens includes a connecting portion abutting against the mounting portion and an optically effective portion connected to the connecting 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 an aspect of the present invention, the lens barrel includes a mounting surface disposed to fit with the first bearing surface;

the first bearing surface, the mounting surface, the second bearing surface and the connecting surface are inclined surfaces, and the inclination angle is β degrees or more and 10 degrees.

According to an aspect of the present invention, the shielding portion includes a first shielding surface opposite to the inner wall of the lens barrel, and a second shielding surface opposite to the transition surface;

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 present invention, the mounting portion of the spacer further includes a spacer outer edge surface located on the outermost side, and the connecting portion of the lens further includes 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 the utility model discloses a scheme, along the axial of lens cone, the installation department of space ring includes first combination face and second combination face, the inner wall butt of first combination face and lens cone relevant position, and the corresponding part butt of second combination face and lens. Therefore, realized the true knot between space ring and lens cone and the lens, stabilized the lock relation promptly, feasible like this the utility model discloses an optical lens can solve stray light and reliability problem. 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 the utility model discloses a scheme, the space ring has the dual location guarantee of axial positioning and radial positioning, and axial positioning relies on the mutual butt with lens cone and lens, and radial positioning then is held by the first face of leaning on of holding of the aforesaid and the second and holds the setting formation of leaning on the face.

According to the utility model discloses a scheme, first bearing is held by face, installation face, second and is the inclined plane with connecting the face, and the inclination on inclined plane is β and is more than or equal to 10 so setting up, not only make space ring radial positioning can 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, has also realized forming the above-mentioned complex effect of stabilizing the lock.

According to the utility model discloses a scheme, optical lens's gross thickness is shared by the thickness of lens cone, space ring and the thickness of lens, therefore, makes according to the utility model discloses an optical lens's each partial formability is better, and forming process is better, has further solved among the prior art lens barrel because of the meat is thick too, and forming process is not good to and have veiling glare, the reliability technical problem such as poor.

According to the utility model discloses a scheme, first shelter from between the inner wall of face and lens cone and the second shelter from the face with all have the clearance between the transition face, the width e1 in clearance is more than or equal to 0.01mm, and e2 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. So set up, make according to the utility model discloses an optical lens can guarantee to have reasonable structural arrangement, guarantees to be really detaining between space ring and the lens cone, has stable lock complex relation of connection promptly, can prevent that lens cone, space ring, lens from being heated back coefficient of thermal expansion different simultaneously, and the shrink size is different, to the influence that the performance produced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used 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 for those skilled in the art, other drawings can be obtained according to these 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," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and other terms are used in an orientation or positional relationship shown in the associated drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are not repeated herein, but the present invention is 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 real buckle between the space ring 3 and the lens barrel 1 and the lens 2 is realized, i.e. the buckling relation is stabilized, thus the optical lens of the utility model 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. Therefore, in the present invention, the spacer 3 has dual positioning guarantee of axial positioning and radial positioning, the axial positioning depends on the mutual abutting with the lens barrel 1 and the lens 2, and the radial positioning is formed by the arrangement of the first bearing surface 3011a and the second bearing surface 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 bearing surface 3012a are provided to cooperate with each other.

As shown in fig. 3 and 4, in the present embodiment, the lens barrel 1 includes the mounting surface a disposed in cooperation with the first bearing surface 3011a, 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 inclined surfaces, and in the present embodiment, the inclined angle of the inclined surface is β ° or more and 10 °.

And as shown in fig. 3, according to the utility model discloses an optical lens's gross thickness a is shared by the thickness b of lens cone 1, the thickness c of spacer 3 and the thickness d of lens 2, and therefore, make according to the utility model discloses an optical lens's each part formability is better, and forming process is better, has further solved among the prior art lens cone because of the thickness of meat is too thick, and forming process is not good to and have veiling glare, the reliability subalternation technical problem.

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. So set up, make according to the utility model discloses an optical lens can guarantee to have reasonable structural arrangement, guarantees to be really detaining between space ring 3 and the lens cone 1, has stable lock complex relation of connection promptly, can prevent that lens cone 1, space ring 3, lens 2 from being heated the back coefficient of thermal expansion different simultaneously, and the shrinkage size is different, to the influence that the performance produced.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

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, and the inclination angle is β degrees or more and 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.