CN211741698U - Big light ring high definition camera lens - Google Patents
Big light ring high definition camera lens Download PDFInfo
- Publication number
- CN211741698U CN211741698U CN202020488249.2U CN202020488249U CN211741698U CN 211741698 U CN211741698 U CN 211741698U CN 202020488249 U CN202020488249 U CN 202020488249U CN 211741698 U CN211741698 U CN 211741698U
- Authority
- CN
- China
- Prior art keywords
- lens
- focal length
- positive focal
- negative
- positive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lenses (AREA)
Abstract
The utility model discloses a large-aperture high-definition lens, which comprises a lens; the zoom lens is characterized in that a first lens, a positive focal length second lens, a negative focal length third lens, a negative focal length fourth lens, a positive focal length fifth lens and a positive focal length sixth lens are arranged in the lens, and the first lens, the positive focal length second lens, the negative focal length third lens, the negative focal length fourth lens, the positive focal length fifth lens and the positive focal length sixth lens are sequentially arranged from the object side to the image side. The utility model has the advantages that: the total lens length TTL is 28mm, the lens is composed of six lenses, the resolution ratio reaches 5 million pixels, the shooting is cleaner, and the environmental suitability is strong.
Description
Technical Field
The utility model relates to a camera lens specifically is a big light ring high definition camera lens, belongs to big light ring high definition camera lens and the module of making a video recording technical field who uses thereof.
Background
The diaphragm itself is a well-established optical device, typically in a lens assembly, which is part of the lens. The large aperture lens is characterized by a large aperture and large luminous flux, but the large aperture lens in the market at present has the defects of low resolution and insufficient clarity in photography.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a big light ring high definition camera lens just in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose: a large-aperture high-definition lens comprises a lens; the lens comprises a lens body, and is characterized in that a first lens, a positive focal length second lens, a negative focal length third lens, a negative focal length fourth lens, a positive focal length fourth lens and a positive focal length sixth lens are arranged in the lens body, the first lens, the positive focal length second lens, the negative focal length third lens, the negative focal length fourth lens, the positive focal length fifth lens and the positive focal length sixth lens are sequentially arranged from an object side to an image side, one surface of the first lens, facing the object side, is a convex surface, and one surface of the image side is a concave surface; one surface of the second lens with the positive focal length, which faces the object side, is a convex surface, and the other surface of the second lens with the positive focal length, which faces the image side, is a convex surface; one surface of the third lens with the negative focal length, which faces the object side, is a concave surface, and the other surface of the third lens with the negative focal length is a concave surface; one surface of the fourth lens with the negative focal length, which faces the object side, is a concave surface, and the other surface of the fourth lens with the negative focal length, which faces the image side, is a concave surface; one surface of the fifth lens element with the positive focal length, which faces the object side, is a convex surface, and the other surface of the fifth lens element with the positive focal length, which faces the image side, is a convex surface; one surface of the sixth lens element with the positive focal length, which faces the object side, is a convex surface, and the other surface of the sixth lens element with the positive focal length, which faces the image side, is a convex surface.
What do the utility model discloses further scheme again: the focal length of the first lens is f1, and the focal length of the second lens with the positive focal length is f 2; it satisfies the relation:
1.92<f1/f2<2.65。
as a further aspect of the present invention: the focal length of the negative focal length third lens is f3, the focal length of the negative focal length fourth lens is f4, and the optical system of the negative focal length third lens and the negative focal length fourth lens meets the following conditions:
-7.3<f3<-5.8；
-10<f4<-8。
as a further aspect of the present invention: the refractive index Nd1 and Abbe constant Vd1 of the material of the first lens satisfy the following conditions:
1.43<Nd1<1.78；
45.6<Vd1<58.4。
as a further aspect of the present invention: the refractive index Nd3 and Abbe constant Vd3 of the material of the third lens with the negative focal length satisfy the following conditions:
1.53<Nd3<1.73；
26.4<Vd3<42.5。
as a further aspect of the present invention: the second lens with the positive focal length and the third lens with the negative focal length are a group of cemented lenses.
As a further aspect of the present invention: the focal length of the positive focal length fifth lens is f5, and the optical system of the negative focal length fourth lens and the positive focal length fifth lens meets the following conditions:
1.13<f5/f4<2.32。
as a further aspect of the present invention: the fourth lens with the negative focal length and the fifth lens with the positive focal length are a group of cemented lenses.
As a further aspect of the present invention: and protective glass is arranged between the sixth lens with the positive focal length and the image plane.
The utility model has the advantages that: this big light ring high definition camera lens reasonable in design makes the camera lens total length TTL become 28mm, comprises six lenses, and resolution ratio reaches 5 million pixels, makes the more washing of shooting, environmental suitability is strong.
Drawings
FIG. 1 is a schematic view of the lens structure of the present invention;
fig. 2 is a first schematic analysis view of the present invention;
fig. 3 is a second schematic analysis view of the present invention;
FIG. 4 is a schematic view of the field curvature of the present invention;
fig. 5 is a schematic diagram of distortion of the present invention;
fig. 6 is a schematic diagram of the relative illumination of the present invention.
In the figure: 1. a first lens, 2, a second lens with positive focal length, 3, a third lens with negative focal length, 4, a fourth lens with negative focal length, 5, a fifth lens with positive focal length and 6, and a sixth lens with positive focal length.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 6, a large-aperture high-definition lens includes a lens; the lens is internally provided with a first lens 1, a second lens 2 with a positive focal length, a third lens 3 with a negative focal length, a fourth lens 4 with a negative focal length, a fifth lens 5 with a positive focal length and a sixth lens 6 with a positive focal length, wherein the first lens 1, the second lens 2 with a positive focal length, the third lens 3 with a negative focal length, the fourth lens 4 with a negative focal length, the fifth lens 5 with a positive focal length and the sixth lens 6 with a positive focal length are sequentially arranged from an object side to an image side, one surface of the first lens 1, facing the object side, is a convex surface, and one surface of the image side is a concave surface; one surface of the second lens element 2 with the positive focal length, which faces the object side, is a convex surface, and the other surface of the second lens element is a convex surface; one surface of the third lens 3 with the negative focal length, which faces the object side, is a concave surface, and the other surface of the third lens is a concave surface; the surface, facing the object side, of the fourth lens 4 with the negative focal length is a concave surface, and the surface facing the image side is a concave surface; the surface, facing the object side, of the fifth lens element 5 with the positive focal length is a convex surface, and the surface facing the image side is a convex surface; the sixth lens element 6 with positive focal length has a convex surface facing the object side and a convex surface facing the image side.
Further, in the embodiment of the present invention, the focal length of the first lens 1 is f1, and the focal length of the second lens 2 with positive focal length is f 2; it satisfies the relation:
1.92<f1/f2<2.65。
further, in the embodiment of the present invention, the focal length of the third lens element 3 with negative focal length is f3, the focal length of the fourth lens element 4 with negative focal length is f4, and the optical system of the third lens element 3 with negative focal length and the optical system of the fourth lens element 4 with negative focal length satisfy the following conditions:
-7.3<f3<-5.8；
-10<f4<-8。
further, in the embodiment of the present invention, the refractive index Nd1 of the material and the abbe constant Vd1 of the first lens 1 satisfy:
1.43<Nd1<1.78；
45.6<Vd1<58.4。
further, in the embodiment of the present invention, the refractive index Nd3 and the abbe constant Vd3 of the material of the third lens 3 with negative focal length satisfy:
1.53<Nd3<1.73；
26.4<Vd3<42.5。
further, in the embodiment of the present invention, the second lens 2 with positive focal length and the third lens 3 with negative focal length are a set of cemented lenses.
Further, in the embodiment of the present invention, the focal length of the fifth lens element 5 with positive focal length is f5, and the optical system of the fourth lens element 4 with negative focal length and the fifth lens element 5 with positive focal length satisfies the following conditions:
1.13<f5/f4<2.32。
further, in the embodiment of the present invention, the fourth lens 4 with negative focal length and the fifth lens 5 with positive focal length are a set of cemented lenses.
Furthermore, in the embodiment of the present invention, a protection glass is further disposed between the sixth lens element 6 with the positive focal length and the image plane.
The working principle is as follows: when the large-aperture high-definition lens is used, six lenses are sequentially arranged from the object side to the image side, so that the resolution reaches 5 million pixels, the shooting can be clearer, and the environmental suitability is strong.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A large-aperture high-definition lens comprises a lens; the method is characterized in that: the zoom lens is characterized in that a first lens (1), a second lens (2) with a positive focal length, a third lens (3) with a negative focal length, a fourth lens (4) with a negative focal length, a fifth lens (5) with a positive focal length and a sixth lens (6) with a positive focal length are arranged in the lens, the first lens (1), the second lens (2) with a positive focal length, the third lens (3) with a negative focal length, the fourth lens (4) with a negative focal length, the fifth lens (5) with a positive focal length and the sixth lens (6) with a positive focal length are sequentially arranged from an object side to an image side, one surface, facing the object side, of the first lens (1) is a convex surface, and one surface, facing the image side; one surface of the second lens (2) with the positive focal length, which faces the object side, is a convex surface, and the other surface of the second lens is a convex surface; the surface, facing the object side, of the third lens (3) with the negative focal length is a concave surface, and the surface facing the image side is a concave surface; the surface, facing the object side, of the fourth lens (4) with the negative focal length is a concave surface, and the surface facing the image side is a concave surface; the surface, facing the object side, of the fifth lens (5) with the positive focal length is a convex surface, and the surface facing the image side is a convex surface; the sixth lens element (6) with positive focal length has a convex surface facing the object side and a convex surface facing the image side.
2. The large-aperture high-definition lens according to claim 1, characterized in that: the focal length of the first lens (1) is f1, and the focal length of the second lens (2) with positive focal length is f 2; it satisfies the relation:
1.92<f1/f2<2.65。
3. the large-aperture high-definition lens according to claim 1, characterized in that: the focal length of the negative focal length third lens (3) is f3, the focal length of the negative focal length fourth lens (4) is f4, and the optical system of the negative focal length third lens (3) and the negative focal length fourth lens (4) meets the following conditions:
-7.3<f3<-5.8；
-10<f4<-8。
4. the large-aperture high-definition lens according to claim 1, characterized in that: the refractive index Nd1 and Abbe constant Vd1 of the material of the first lens (1) satisfy the following conditions:
1.43<Nd1<1.78；
45.6<Vd1<58.4。
5. the large-aperture high-definition lens according to claim 1, characterized in that: the refractive index Nd3 and Abbe constant Vd3 of the material of the third lens (3) with the negative focal length satisfy that:
1.53<Nd3<1.73；
26.4<Vd3<42.5。
6. the large-aperture high-definition lens according to claim 1, characterized in that: the second lens (2) with the positive focal length and the third lens (3) with the negative focal length are a group of cemented lenses.
7. The large-aperture high-definition lens according to claim 1 or 3, wherein: the focal length of the positive focal length fifth lens (5) is f5, and the optical system of the negative focal length fourth lens (4) and the positive focal length fifth lens (5) meets the following conditions:
1.13<f5/f4<2.32。
8. the large-aperture high-definition lens according to claim 7, wherein: the fourth lens (4) with the negative focal length and the fifth lens (5) with the positive focal length are a group of cemented lenses.
9. The large-aperture high-definition lens according to claim 1, characterized in that: and protective glass is arranged between the sixth lens (6) with the positive focal length and the image plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020488249.2U CN211741698U (en) | 2020-04-07 | 2020-04-07 | Big light ring high definition camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020488249.2U CN211741698U (en) | 2020-04-07 | 2020-04-07 | Big light ring high definition camera lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211741698U true CN211741698U (en) | 2020-10-23 |
Family
ID=72854352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020488249.2U Active CN211741698U (en) | 2020-04-07 | 2020-04-07 | Big light ring high definition camera lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211741698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113589497A (en) * | 2021-08-11 | 2021-11-02 | 福州英迪格成像技术有限公司 | Ultraviolet lens for limited conjugate distance imaging |
-
2020
- 2020-04-07 CN CN202020488249.2U patent/CN211741698U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113589497A (en) * | 2021-08-11 | 2021-11-02 | 福州英迪格成像技术有限公司 | Ultraviolet lens for limited conjugate distance imaging |
| CN113589497B (en) * | 2021-08-11 | 2022-08-05 | 福州英迪格成像技术有限公司 | Ultraviolet lens for limited conjugate distance imaging |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107065137B (en) | Super wide angle optical system of making a video recording and module of making a video recording of using thereof | |
| CN111796404B (en) | High-pixel wide-angle day and night confocal camera module | |
| CN109521551B (en) | Large-relative-aperture zero-temperature-drift vehicle-mounted optical system and imaging method | |
| CN210072173U (en) | Wide-angle day and night confocal athermalization optical system and camera module applying same | |
| CN209400781U (en) | High-pixel wide-angle day and night confocal optical system and its camera module of application | |
| CN107037570B (en) | Athermalization high-definition prime lens | |
| CN108535836B (en) | Full high definition projection lens | |
| CN211741698U (en) | Big light ring high definition camera lens | |
| CN106371196B (en) | The short overall length optical system of the high pixel of large aperture ultra-wide angle and its camera lens of application | |
| CN213843661U (en) | High-resolution low-distortion optical lens | |
| CN111880292B (en) | Small-volume fisheye camera module with ultra-wide angle, ultra-high pixel and low chromatic aberration | |
| CN111812807A (en) | Unmanned aerial vehicle high definition camera lens of taking photo by plane | |
| CN218122347U (en) | High-pixel day and night dual-purpose optical system and camera module applying same | |
| CN107621689B (en) | Miniaturized fish-eye optical system | |
| CN207440378U (en) | Minimize the camera module of fish eye optical systems and its application | |
| CN107505691B (en) | Large aperture high pixel optical system | |
| CN213843659U (en) | High-pixel large-target-surface industrial lens | |
| CN207181793U (en) | High pixel fish eye optical systems and its camera module of application | |
| CN208705555U (en) | A kind of wide-angle superstar lighting level high definition optical lens | |
| CN209784642U (en) | Wide-angle and small-distortion photographic lens | |
| CN208969321U (en) | A kind of optical imaging lens | |
| CN113311568A (en) | Athermal high definition intelligent traffic monitoring camera | |
| CN211627926U (en) | Low-cost wide-angle infrared microspur imaging system | |
| CN112612124A (en) | High-pixel large-target-surface industrial lens | |
| CN206876948U (en) | The high pixel fish eye optical systems of small size and its camera module of application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |