CN114967025A - Spacer ring and lens module - Google Patents
Spacer ring and lens module Download PDFInfo
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- CN114967025A CN114967025A CN202110361632.0A CN202110361632A CN114967025A CN 114967025 A CN114967025 A CN 114967025A CN 202110361632 A CN202110361632 A CN 202110361632A CN 114967025 A CN114967025 A CN 114967025A
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- Prior art keywords
- annular
- annular member
- spacer ring
- edge surface
- lens
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- 125000006850 spacer group Chemical group 0.000 title claims abstract description 61
- 230000003287 optical effect Effects 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 9
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- -1 graphene compound Chemical class 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000003989 dielectric material Substances 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 9
- 239000011248 coating agent Substances 0.000 description 5
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
-
- 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
- G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/118—Anti-reflection coatings having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures
-
- 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
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a spacer ring and a lens module, the spacer ring comprises: a first annular member having a first maximum thickness in an axial direction; and a second annular member provided to overlap with the first annular member in a radial direction and an axial direction, wherein: the first annular component comprises a first inner edge surface, the second annular component comprises a second inner edge surface, the first inner edge surface and the second inner edge surface form an annular groove, the opening of the annular groove faces to the axis of the spacing ring, and the size of the opening is gradually increased along the radial direction towards the direction of the axis; and the first annular part and the second annular part are overlapped in the axial direction and have a second maximum thickness, and the first maximum thickness is larger than or equal to the second maximum thickness. The first annular part is used for controlling the air space between two adjacent lenses to improve the imaging quality, and an annular groove structure with a V-shaped or cup-shaped section is formed between the second annular part and the first annular part to achieve the function of eliminating stray light.
Description
Technical Field
The present invention relates to a spacer ring, and more particularly, to a lens module having a spacer ring.
Background
A conventional lens module generally includes at least one spacer ring disposed between two optical elements to adjust a distance between the two optical elements, and thus to adjust optical performance of the lens module, such as a focal length between two lenses. However, part of the incident light is not directly refracted by the optical element and then enters the image sensor, but enters the image sensor after being reflected on the surface of the spacer ring, so that a ghost image is formed, and the quality of the shot image is seriously affected by the existence of the ghost image.
Referring to fig. 1, the spacer ring 90 of the lens module 9 has an annular groove 902, and when the incident light L forms stray light due to multiple reflections in the lens module 9, the annular groove 902 can reflect and consume the stray light multiple times through the inner surface thereof, thereby improving the imaging quality. The spacer 90 is made of a metal material, and the annular groove 90 is formed by turning, but the process tolerance and accuracy of the turning method are poor as the camera lens module enters the high pixel area.
Therefore, there is a need for a spacer ring and a lens module that can solve the above-mentioned problems.
Disclosure of Invention
It is an object of the present invention to provide a spacer ring that can be designed as more than two ring members, a first ring member and a second ring member.
In accordance with the above objects, the present invention provides a spacer ring defining a radial direction and an axial direction perpendicular to each other, the spacer ring comprising: a first annular member having a first maximum thickness in the axial direction; and a second annular component, it overlaps setting in this radial and this axial with this first annular component, wherein: the first annular component comprises a first inner edge surface, the second annular component comprises a second inner edge surface, the first inner edge surface and the second inner edge surface form an annular groove, an opening of the annular groove faces to an axis of the spacing ring, and the size of the opening is gradually increased along the radial direction towards the axis; the first annular part and the second annular part are overlapped in the axial direction and have a second maximum thickness, and the first maximum thickness is larger than or equal to the second maximum thickness.
Optionally, the first annular component further comprises: a first surface and a second surface opposite to each other, and the second annular member further includes: a third surface and a fourth surface, wherein the first surface is closer to the third surface than the second surface; the first maximum thickness is a maximum distance between the first surface and the second surface of the first annular component in the axial direction; and the second maximum thickness is a maximum distance between the second surface of the first annular part and the third surface of the second annular part in the axial direction.
Optionally, tangential directions of the first surface, the second surface, the third surface and the fourth surface are perpendicular to the axial direction.
Optionally, the first annular component comprises: a first outer peripheral surface, and the second annular member includes: the first outer edge surface and the second outer edge surface are respectively opposite to the first inner edge surface and the second inner edge surface, and the diameter of the first outer edge surface is larger than that of the second outer edge surface.
Optionally, the first inner edge surface of the first annular component abuts the fourth surface and the second outer edge surface of the second annular component.
Optionally, the first inner edge surface of the first annular member forms a groove, a plane or a step, and the second annular member is disposed in the groove, the plane or the step.
Optionally, the opening of the annular groove is gradually enlarged along the radial direction toward the axial center in a V-shaped or cup-shaped section.
Optionally, the surface of the annular groove is provided with a plurality of stray light cancelling structures, each of which is generally S-shaped or < shaped.
Optionally, the surface of the annular groove is provided with an anti-reflection layer.
Optionally, the anti-reflection layer is disposed on the surface of the annular groove by a plating process or an ink coating process.
Optionally, in the coating process, the material of the anti-reflection layer is a dielectric coating film or a metal coating film; and in the ink coating process, the material of the anti-reflecting layer is matt ink or graphene compound.
The present invention further provides a lens module, sequentially from an object side to an image side, comprising: a first lens, a spacer ring and a second lens; wherein the spacer ring is any one of the spacer rings described above.
Optionally, the first annular part and the second annular part are sequentially stacked and combined along an optical axis, and a refractive index of a material of the first annular part is greater than a refractive index of a material of the second annular part.
Optionally, the first annular part and the second annular part are sequentially stacked and combined along an optical axis, the first annular part is adjacent to the first lens and the second lens, and the second annular part is not adjacent to the first lens.
Optionally, the second annular member and the first annular member are sequentially stacked and combined along an optical axis, and a refractive index of a material of the second annular member is greater than a refractive index of a material of the first annular member.
Optionally, the second annular member and the first annular member are sequentially stacked and combined along an optical axis, the first annular member abuts the first lens and the second lens, and the second annular member does not abut the second lens.
The spacer ring can be designed into more than two annular parts, namely a first annular part and a second annular part, and the thickness of the first annular part is greater than the superposed thickness of the first annular part and the second annular part, so that the first annular part is used as an external spacer ring, and the thickness of the external spacer ring determines the distance between two adjacent lenses so as to control the air interval between the two adjacent lenses and improve the imaging quality; and the second annular part is only used as an inner spacing ring, and a V-shaped or cup-shaped section annular groove structure is formed between the second annular part and the first annular part to generate a light trap for achieving the function of eliminating stray light. Furthermore, the spacer ring design with annular grooves of the present invention, having more than two annular members, can be manufactured separately using injection molding with small tolerances and high precision.
Drawings
Fig. 1 is a schematic cross-sectional view of a lens module according to the prior art.
Fig. 2a is a schematic cross-sectional view of a lens module according to an embodiment of the invention.
Fig. 2b is a schematic cross-sectional view of a lens module according to another embodiment of the invention.
FIG. 3 is a partial perspective cross-sectional view of an assembled spacer ring according to an embodiment of the present invention.
FIG. 4a is a schematic partial cross-sectional view of an assembled spacer ring according to an embodiment of the present invention.
FIG. 4b is a partial cross-sectional view of an exploded spacer ring according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view of an assembled spacer ring according to an embodiment of the present invention.
FIG. 6 is a schematic view, partially in cross-section, of an assembled spacer ring according to another embodiment of the present invention.
Fig. 7a and 7b are schematic perspective sectional views of a portion of an assembled spacer ring according to another embodiment of the present invention.
In the figure:
1, a lens module; 1' a lens module; 10 spacer rings; 100 annular grooves; 101 an opening; 102 an anti-reflection layer; 103 stray light eliminating structure; 11 a first annular member; 110 grooves; 111 a first outer edge surface; 112 a first inner edge surface; 113 a first surface; 114 a second surface; 12 a second annular member; 121 a second peripheral surface; 122 second inner edge surface; 123 a third surface; 124 a fourth surface; 13 lenses; 14 lenses; 15 lenses; 16 light shielding plates; 17 an optical filter; 18 imaging surface; 9 a lens module; 90 spacer rings; 902 an annular groove; d1 first maximum thickness; d2 second maximum thickness; i, an optical axis; l incident light; o axis; t1 radial; t2 axial; diameter phi 11; Φ 12 diameter.
Detailed Description
In order to make the aforementioned and other objects, features and characteristics of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The present invention is described below by taking a lens module of a three-piece lens set as an example. Referring to fig. 2a, the lens module 1 includes, in order from an object side to an image side: a lens 13, a lens 14, a spacer ring 10, and a lens 15, which are arranged in this order along the optical axis I. In this embodiment, the lens module 1 further includes: a light shielding plate 16 and a filter 17, wherein the light shielding plate 16 is disposed between the lenses 14 and 15 along the optical axis I, and the filter 17 (e.g., an infrared filter) is disposed behind the lens 15 along the optical axis I. The mask 16 may be an Aperture Stop (Aperture Stop) or a Stop (Stop) for modifying the edge ray, but is not limited thereto. The light passes through the lens 13, the lens 14 and the lens 15, and passes through the filter 17, so that the light reaches an imaging surface 18. The lens 13, the lens 14 and the lens 15 may be plastic lenses.
Referring to fig. 3 and 4a, the spacer ring 10 defines a radial direction T1 and an axial direction T2 perpendicular to each other, the axial direction T2 being parallel to the optical axis I. The spacer ring 10 includes: a first annular member 11 and a second annular member 12, the second annular member 12 and the first annular member being disposed in an overlapping manner in the radial direction T1 and in the axial direction T2. The material of the first annular part 11 and the second annular part 12 can be metal or plastic.
The first annular member 11 includes a first inner edge surface 112, the second annular member 12 includes a second inner edge surface 122, and both the first inner edge surface 112 and the second inner edge surface 122 are oriented toward the axis O of the spacer ring 10. The first inner edge surface 112 and the second inner edge surface 122 form an annular groove 100, an opening 101 of the annular groove 100 faces the axial center O of the spacer ring 10, and the size of the opening 101 gradually increases along the radial direction T1 toward the axial center O. In the present embodiment, the size of the opening 101 of the annular groove 100 is gradually increased along the radial direction T1 toward the axial center O in a V-shaped cross section, as shown in fig. 2 a. In another embodiment, the size of the opening 101 of the annular groove 100 is increased along the radial direction T1 toward the axial center O in a cup-shaped cross section, as shown in fig. 2b, but not limited thereto.
Referring to fig. 4a, 4b and 5, the first annular member 11 has a first maximum thickness D1 (i.e., the thickness of the first annular member 11 in the axial direction T2) in the axial direction T2, and the first annular member 11 and the second annular member 12 have a second maximum thickness D2 (i.e., the overlapping thickness of the first annular member 11 and the second annular member 12 in the axial direction T2) at the overlapping position in the axial direction T2, wherein the first maximum thickness D1 is greater than or equal to the second maximum thickness D2. In the present embodiment, the first annular part 11 further includes a first surface 113 and a second surface 114 opposite to each other, and the second annular part 12 further includes a third surface 123 and a fourth surface 124, wherein the first surface 113 is closer to the third surface 123 than the second surface 114. The tangential directions of the first surface 113, the second surface 114, the third surface 123 and the fourth surface 124 may be perpendicular to the axial direction T2, so that the first annular member 11 and the second annular member 12 after stacked combination are easily positioned between the lenses 14, 15. For example, the first maximum thickness D1 may be the maximum distance between the first surface 113 and the second surface 114 of the first annular component 11 along the axial direction T2, and the second maximum thickness D2 may be the maximum distance between the second surface 114 of the first annular component 11 and the third surface 123 of the second annular component 12 along the axial direction T2. The first annular member 11 further includes a first outer edge surface 111, the second annular member 12 further includes a second outer edge surface 121, the first outer edge surface 111 and the second outer edge surface 121 are respectively opposite to the first inner edge surface 112 and the second inner edge surface 122, that is, both the first outer edge surface 111 and the second outer edge surface 121 can be away from the axis O of the spacer ring 10, and the diameter Φ 11 of the first outer edge surface 111 is greater than the diameter Φ 12 of the second outer edge surface 121.
The spacer ring of the present invention can be designed as two or more annular members, namely, the first annular member 11 and the second annular member 12, because the thickness of the first annular member 11 in the axial direction T2 is greater than the thickness of the first annular member 11 and the second annular member 12 superimposed in the axial direction T2, the first annular member 11 serves as an outer spacer ring, and the thickness of the outer spacer ring determines the distance between two adjacent lenses 14 and 15, so as to control the air space between the two adjacent lenses 14 and 15 and improve the imaging quality; and the second annular part 12 is only used as an inner spacing ring, and forms a V-shaped or cup-shaped section annular groove structure with the first annular part 11 to generate a light trap for eliminating stray light. Furthermore, the spacer ring design with annular grooves of the present invention, having more than two annular members, can be manufactured separately using injection molding with small tolerances and high precision.
Referring to fig. 4a and 4b, in the present embodiment, the first inner edge surface 112 of the first annular part 11 is adjacent to the fourth surface 124 and the second outer edge surface 121 of the second annular part 12. The first inner edge surface 112 of the first annular member 11 may form a groove 110, and the second annular member 12 is disposed in the groove 110 of the first inner edge surface 112. In another embodiment, the first inner edge surface 112 of the first annular member 11 can also form a plane or a step, and the second annular member 12 is disposed in the plane or the step of the first inner edge surface 112. The groove 110, flats or steps provide a larger contact area, thus allowing easy stacking and assembly of the first and second annular members 11 and 12.
Fig. 6 is a schematic partial cross-sectional view of a spacer ring according to another embodiment of the present invention. The first inner edge surface 112 and the second inner edge surface 122 of the annular groove 100 are provided with the anti-reflection layer 102. The anti-reflection layer 102 is disposed on the first inner edge surface 112 and the second inner edge surface 122 by a plating process or an ink coating process. In the coating process, the material of the anti-reflection layer 102 is a dielectric coating or a metal coating. For example, the coating process uses a physical vapor deposition coating method to coat one or more layers of dielectric coatings or metal materials (such as titanium oxide, silicon oxide, magnesium fluoride, and other metal compounds as materials), so as to change the transmission characteristics of light waves, and to change the transmittance and reflectance of the surfaces of the first inner edge surface 112 and the second inner edge surface 122 of the annular groove 100 with respect to visible light, thereby reducing the stray light generated during imaging. In the ink coating process, the material of the anti-reflection layer 102 is matting ink or graphene compound. For example, the inking process uses an inking machine to add a matte ink (GT7), graphene compound, or other reflectivity reducing coating to the surfaces of the first and second inner rim surfaces 112, 122 of the annular channel 100. Alternatively, the inking process uses a photocopying method: matte ink (GT7), graphene compounds, and the like are transferred to the surfaces of the first inner edge surface 112 and the second inner edge surface 122 of the annular groove 100 by soft silicone.
Fig. 7a and 7b are schematic perspective sectional views of a spacer ring according to another embodiment of the present invention. The first inner edge surface 112 of the first annular part 11 and the second inner edge surface 122 of the second annular part 12 are provided with a plurality of stray light elimination structures 103, each of which is substantially an S-shaped groove or a < shaped groove to generate a better light trapping effect.
Referring to fig. 2a again, in the present embodiment, the first annular member 11 and the second annular member 12 are sequentially stacked and combined along the optical axis I, for example, the first annular member 11 and the second annular member 12 are stacked, combined or fixed by adhesion, locking or fastening. The refractive index of the material of the first annular member 11 is greater than that of the material of the second annular member 12, so that the light from the object side is easily totally reflected at the interface between the first annular member 11 and the second annular member 12. Furthermore, the first annular part 11 abuts the lens 14 and the lens 15, and the second annular part 12 does not abut the lens 14. Since the first annular member 11 is adjacent to the lenses 14 and 15, the first annular member 11 can serve as an outer spacer, and the thickness of the outer spacer determines the distance between two adjacent lenses 14 and 15, so as to control the air gap between the two adjacent lenses 14 and 15 and improve the imaging quality; and, since the second annular part 12 is not adjacent to the lens 14, the second annular part 12 only serves as an inner spacer ring and forms a ring groove structure with a V-shaped or cup-shaped cross section with the first annular part 11, so as to generate a light trap for achieving the function of stray light elimination.
Referring to fig. 2b again, in another embodiment, the second annular member 12 and the first annular member 11 are sequentially stacked and combined along the optical axis I. The refractive index of the material of the second annular member 12 is greater than that of the material of the first annular member 11, so that the light from the object side is easily totally reflected at the interface between the second annular member 12 and the first annular member 11. Furthermore, the first annular part 11 abuts the lens 14 and the lens 15, and the second annular part 12 does not abut the lens 15. Since the first annular member 11 is adjacent to the lenses 14 and 15, the first annular member 11 serves as an outer spacer, and the thickness of the outer spacer determines the distance between two adjacent lenses 14 and 15, so as to control the air gap between the two adjacent lenses 14 and 15 and improve the imaging quality; and, since the second annular part 12 is not adjacent to the lens 15, the second annular part 12 only serves as an inner spacer ring and forms a ring groove structure with a V-shaped or cup-shaped cross section with the first annular part 11, so as to generate a light trap for achieving the function of stray light elimination.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (16)
1. A spacer ring defining a radial direction and an axial direction perpendicular to each other, the spacer ring comprising:
a first annular member having a first maximum thickness in the axial direction; and
a second annular member disposed in an overlapping manner with the first annular member in the radial direction and the axial direction, wherein:
the first annular component comprises a first inner edge surface, the second annular component comprises a second inner edge surface, the first inner edge surface and the second inner edge surface form an annular groove, an opening of the annular groove faces to an axis of the spacing ring, and the size of the opening is gradually increased along the radial direction towards the axis; and
the first annular part and the second annular part are overlapped in the axial direction and have a second maximum thickness, and the first maximum thickness is larger than or equal to the second maximum thickness.
2. The spacer ring of claim 1 wherein:
the first annular component further comprises: a first surface and a second surface opposite to each other, and the second annular member further includes: a third surface and a fourth surface, wherein the first surface is closer to the third surface than the second surface;
the first maximum thickness is a maximum distance between the first surface and the second surface of the first annular component in the axial direction; and
the second maximum thickness is a maximum distance between the second surface of the first annular part and the third surface of the second annular part in the axial direction.
3. The spacer ring of claim 2, wherein the tangential directions of the first surface, the second surface, the third surface and the fourth surface are perpendicular to the axial direction.
4. The spacer ring of claim 2 wherein the first annular member comprises: a first outer peripheral surface, and the second annular member includes: the first outer edge surface and the second outer edge surface are respectively opposite to the first inner edge surface and the second inner edge surface, and the diameter of the first outer edge surface is larger than that of the second outer edge surface.
5. The spacer ring of claim 4, wherein the first inner edge surface of the first annular member abuts the fourth surface and the second outer edge surface of the second annular member.
6. A spacer ring as claimed in claim 5 wherein said first inner edge surface of said first annular member forms a groove, a flat surface or a step and said second annular member is disposed in said groove, said flat surface or said step.
7. A spacer ring as claimed in claim 1 wherein said opening of said annular groove is of a V-shaped or cup-shaped cross-section that increases in size in the radial direction towards said axis.
8. The spacer ring of claim 1 wherein the surface of the annular groove is provided with a plurality of stray light cancellation structures, each of the stray light cancellation structures being generally S-shaped or < shaped.
9. A spacer ring as claimed in claim 1 wherein the surface of the annular groove is provided with an anti-reflection layer.
10. The spacer ring as claimed in claim 9, wherein the anti-reflection layer is disposed on the surface of the annular groove by a plating process or an ink coating process.
11. The spacer ring as claimed in claim 10, wherein the anti-reflection layer is made of a dielectric material or a metal material during the plating process; and in the ink coating process, the material of the anti-reflecting layer is matt ink or graphene compound.
12. A lens module includes, in order from an object side to an image side:
a first lens, a spacer ring and a second lens;
characterised in that the spacer ring is as claimed in any one of claims 1 to 11.
13. The lens module as recited in claim 12, wherein the first ring member and the second ring member are sequentially stacked and combined along the optical axis, and a refractive index of a material of the first ring member is greater than a refractive index of a material of the second ring member.
14. The lens module as recited in claim 12, wherein the first annular member and the second annular member are sequentially stacked and combined along an optical axis, the first annular member is adjacent to the first lens and the second lens, and the second annular member is not adjacent to the first lens.
15. The lens module as recited in claim 12, wherein the second annular member and the first annular member are sequentially stacked and combined along the optical axis, and a refractive index of a material of the second annular member is greater than a refractive index of a material of the first annular member.
16. The lens module as recited in claim 12, wherein the second annular member and the first annular member are sequentially stacked and combined along an optical axis, the first annular member abuts the first lens and the second lens, and the second annular member does not abut the second lens.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW110105789A TWI746376B (en) | 2021-02-19 | 2021-02-19 | Spacer ring and lens module |
| TW110105789 | 2021-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114967025A true CN114967025A (en) | 2022-08-30 |
| CN114967025B CN114967025B (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110361632.0A Active CN114967025B (en) | 2021-02-19 | 2021-04-02 | Spacer ring and lens module |
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| CN (1) | CN114967025B (en) |
| TW (1) | TWI746376B (en) |
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| CN208156277U (en) * | 2018-05-18 | 2018-11-27 | 南昌欧菲精密光学制品有限公司 | Lens set and lens module |
| TWM578388U (en) * | 2018-10-24 | 2019-05-21 | 大立光電股份有限公司 | Imaging lens assembly, camera module and electronic device |
| TWI701473B (en) * | 2019-09-11 | 2020-08-11 | 大立光電股份有限公司 | Imaging lens assembly module, camera module and electronic device |
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| CN204241748U (en) * | 2014-11-21 | 2015-04-01 | 桑来斯光电科技(上海)有限公司 | A kind of accurate large aperture light field camera lens |
| CN108459388A (en) * | 2017-02-22 | 2018-08-28 | 大立光电股份有限公司 | Ring-shaped optical element set, imaging lens set and electronic device |
| CN210323530U (en) * | 2019-07-30 | 2020-04-14 | 新钜科技股份有限公司 | Optical element with stray light eliminating structure |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI746376B (en) | 2021-11-11 |
| CN114967025B (en) | 2024-01-19 |
| TW202234107A (en) | 2022-09-01 |
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