CN114967073B - Short-focus telescopic optical lens - Google Patents
Short-focus telescopic optical lens Download PDFInfo
- Publication number
- CN114967073B CN114967073B CN202210752971.6A CN202210752971A CN114967073B CN 114967073 B CN114967073 B CN 114967073B CN 202210752971 A CN202210752971 A CN 202210752971A CN 114967073 B CN114967073 B CN 114967073B
- Authority
- CN
- China
- Prior art keywords
- lens
- short
- paraxial region
- telescopic optical
- image
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention provides a short-focus telescopic optical lens, which sequentially comprises the following components from an object side to an image side: a first lens with negative focal power, a second lens with positive focal power, wherein the object side surface of the second lens is a convex surface at the paraxial region, and the image side surface of the second lens is a concave surface at the paraxial region; an aperture; the object side paraxial region of the third lens is a convex surface, and the image side paraxial region of the third lens is a convex surface; the object side paraxial region of the fourth lens is a concave surface, and the image side paraxial region of the fourth lens is a convex surface; a fifth lens element with negative refractive power, wherein the object-side paraxial region of the fifth lens element is concave, and the image-side paraxial region of the fifth lens element is convex; a sixth lens element with positive refractive power, wherein the object-side paraxial region of the sixth lens element is convex, and the image-side paraxial region of the sixth lens element is concave; the following conditions are satisfied: 7.00< TTL <7.01;2.40mm < EFL <2.55mm;2.22< fno <2.28; hfov=42 degrees. On the basis of ensuring imaging quality, the lens is small in size.
Description
Technical Field
The invention relates to the technical field of optical lenses, in particular to a short-focus telescopic optical lens.
Background
Wide angle lenses are also known as short focal lenses. The wide-angle lens is divided into a common wide-angle lens and an ultra-wide-angle lens. The wide-angle lens has the advantages of short focal length and large visual angle, can shoot wide scenes in a short distance, has outstanding prospect, and has a depth of field range which is obviously larger than that of a standard lens and a telephoto lens, and a strong sense of depth of a picture. With the development of technology, the scene shooting device is gradually raised, the optical system photosensitive element of the scene shooting device is not limited to a photosensitive coupling element or a complementary metal oxide semiconductor element, and with the refinement of semiconductor processing technology, the pixel size of the photosensitive element is reduced, and the optical system tends to be higher in pixel and higher in imaging quality. In order to meet this trend, a high image quality, a small size, and a telescopic function are further required for a subject photographing device mounted on an image pickup device such as a computer, a communication and consumer electronics product, a mobile phone, and a digital camera. In the prior art, the optical lens with the function has a large number of common lenses, is unfavorable for miniaturization and light weight of the lens on the basis of ensuring imaging quality, and needs to be solved in view of the situation.
Disclosure of Invention
Aiming at the problems, the invention provides the short-focus telescopic optical lens, which has small volume on the basis of ensuring imaging quality.
In order to achieve the above purpose, the present invention solves the problems by the following technical scheme:
the utility model provides a short-focus telescope optical lens, short-focus telescope optical lens comprises six lenses, includes from object side to image side in proper order:
a first lens with negative focal power, wherein the object side paraxial region of the first lens is a convex surface, and the image side paraxial region of the first lens is a concave surface;
a second lens with positive focal power, wherein the object side paraxial region of the second lens is a convex surface, and the image side paraxial region of the second lens is a concave surface;
an aperture;
a third lens element with positive refractive power, wherein the object-side paraxial region of the third lens element is convex, and the image-side paraxial region of the third lens element is convex;
a fourth lens element with positive refractive power, wherein the object-side paraxial region of the fourth lens element is concave, and the image-side paraxial region of the fourth lens element is convex;
a fifth lens with negative focal power, wherein an object-side paraxial region of the fifth lens is a concave surface, and an image-side paraxial region of the fifth lens is a convex surface;
a sixth lens element with positive refractive power, wherein the object-side paraxial region of the sixth lens element is convex, and the image-side paraxial region of the sixth lens element is concave;
the short-focus telescopic optical lens meets the following conditions:
7.00mm < TTL <7.01mm; wherein TTL is total mirror length;
2.40mm < EFL <2.55mm; wherein EFL is the effective focal length of the short-focus telescopic optical lens;
2.22< fno <2.28; wherein FNO is the aperture value of the short-focus telescopic optical lens;
HFOV = 42 degrees; wherein, HFOV is the half angle of view of the short-focus telescopic optical lens.
Further, the short-focal telescopic optical lens satisfies the following conditions: 2.16mm < imgh <2.18mm; wherein ImgH is image height.
Further, the short-focal telescopic optical lens satisfies the following conditions: -5.96mm < f12< -5.98mm; wherein f12 is the combined focal length of the first lens to the second lens.
Further, the short-focal telescopic optical lens satisfies the following conditions: 2.19mm < f3456<2.22mm; wherein f3456 is a combined focal length of the fourth lens, the fifth lens and the sixth lens of the third lens.
Further, the short-focal telescopic optical lens satisfies the following conditions: -2.73mm < f12/f3456< -2.69mm, wherein f12 is the combined focal length of the first lens to the second lens, and f3456 is the combined focal length of the fourth lens, the fifth lens and the sixth lens of the third lens.
Further, the short-focal telescopic optical lens satisfies the following conditions: -2.45mm < f12/EFL < -2.38mm, wherein f12 is the combined focal length of the first lens to the second lens, and EFL is the effective focal length of the short-focal telescopic optical lens.
Further, the short-focal telescopic optical lens satisfies the following conditions: 0.308< ImgH/TTL <0.310, wherein ImgH is image height and TTL is total mirror length.
Further, the short-focal telescopic optical lens satisfies the following conditions: 7.658< R3R 4/R9R 10<7.887; wherein R3 is a radius of curvature of the second lens object-side surface L2a, R4 is a radius of curvature of the second lens image-side surface L2b, R9 is a radius of curvature of the fifth lens object-side surface L5a, and R10 is a radius of curvature of the fifth lens image-side surface L5 b.
The beneficial effects of the invention are as follows: six lenses are adopted for matching imaging structurally, the number of the lenses is small, the production cost is reduced, the total lens length is in the range of 7.00mm-7.01mm, the half field angle is 42 degrees, and the size of the lens is small on the basis of ensuring the imaging quality.
Drawings
Fig. 1 is a schematic diagram of the structure of a short-focal telescopic optical lens of embodiment 1.
Fig. 2 is a curvature of field aberration diagram of the short-focal telescopic optical lens of embodiment 1.
Fig. 3 is a distortion aberration diagram of the short-focal telescopic optical lens of example 1.
Fig. 4 is a longitudinal spherical aberration diagram of a short-focal telescopic optical lens of example 1.
Fig. 5 is a schematic structural diagram of a short-focal telescopic optical lens of embodiment 2.
Fig. 6 is a curvature of field aberration diagram of the short-focal telescopic optical lens of embodiment 2.
Fig. 7 is a distortion aberration diagram of the short-focal telescopic optical lens of example 2.
Fig. 8 is a longitudinal spherical aberration diagram of a short-focal telescopic optical lens of example 2.
Fig. 9 is a schematic structural diagram of a short-focal telescopic optical lens of embodiment 3.
Fig. 10 is a curvature of field aberration diagram of the short-focal telescopic optical lens of embodiment 3.
Fig. 11 is a distortion aberration diagram of the short-focal telescopic optical lens of example 3.
Fig. 12 is a longitudinal spherical aberration diagram of a short-focal telescopic optical lens of example 3.
The reference numerals are: the first lens 10, the second lens 11, the fourth lens 13, the fifth lens 14, the sixth lens 15, the cover glass 16, the image side surface 17, the aperture 18, and the third lens 12.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
Example 1
As shown in fig. 1 to 4, a short-focus telescopic optical lens is composed of six lenses, and includes, in order from an object side to an image side:
the first lens element 10 with negative refractive power has a convex object-side surface at a paraxial region of the first lens element 10 and a concave image-side surface 17 at a paraxial region of the first lens element 10;
the second lens element 11 with positive refractive power, wherein the object-side paraxial region of the second lens element 11 is convex, and the image-side paraxial region of the second lens element 11 is concave;
an aperture 18;
the third lens element 12 with positive refractive power, wherein the object-side paraxial region of the third lens element 12 is convex, and the image-side paraxial region of the third lens element 12 is convex;
a fourth lens element 13 with positive refractive power, wherein a concave object-side paraxial region of the fourth lens element 13 and a convex image-side paraxial region of the fourth lens element 13;
a fifth lens element 14 with negative refractive power, wherein an object-side paraxial region of the fifth lens element 14 is concave and an image-side paraxial region of the fifth lens element 14 is convex;
a sixth lens element 15 with positive refractive power, wherein the object-side paraxial region of the sixth lens element 15 is convex and the image-side paraxial region of the sixth lens element 15 is concave;
a cover glass 16 is provided between the sixth lens 15 and the image side surface 17.
The short-focus telescopic optical lens meets the following conditions:
7.00mm < TTL <7.01mm; wherein TTL is total mirror length; in this embodiment, ttl=7.000.
2.40mm < EFL <2.55mm; wherein EFL is the effective focal length of the short-focus telescopic optical lens; in this embodiment, efl=2.503 mm.
2.22< fno <2.28; wherein FNO is the aperture 18 value of the short-focus telescopic optical lens; in this embodiment, fno= 2.242.
HFOV = 42 degrees; wherein, HFOV is the half angle of view of the short-focus telescopic optical lens.
The short-focus telescopic optical lens meets the following conditions: 2.16mm < imgh <2.18mm; wherein ImgH is image height. In this embodiment, imgh=2.170 mm.
The short-focus telescopic optical lens meets the following conditions: -5.96mm < f12< -5.98mm; wherein f12 is the combined focal length of the first lens 10 to the second lens 11; in this embodiment, f12= -5.966mm.
The short-focus telescopic optical lens meets the following conditions: 2.19mm < f3456<2.22mm; wherein f3456 is the combined focal length of the third lens 12, the fourth lens 13, the fifth lens 14, and the sixth lens 15; in this embodiment, f3456= 2.218mm.
The short-focus telescopic optical lens meets the following conditions: -2.73mm < f12/f3456< -2.69mm, wherein f12 is the combined focal length of the first lens 10 to the second lens 11, and f3456 is the combined focal length of the third lens 12, the fourth lens 13, the fifth lens 14, the sixth lens 15; in this embodiment, f12/f3456= -2.690mm.
The short-focus telescopic optical lens meets the following conditions: -2.45mm < f12/EFL < -2.38mm, where f12 is the combined focal length of the first lens 10 to the second lens 11, and EFL is the effective focal length of the short-focal telescopic optical lens, in this embodiment, f 12/efl= -2.383mm.
The short-focus telescopic optical lens meets the following conditions: 0.308mm < ImgH/TTL <0.310mm; in this embodiment, imgH/ttl=0.310 mm, where ImgH is the image height and TTL is the total mirror length.
The short-focus telescopic optical lens meets the following conditions: 7.658< R3R 4/R9R 10<7.887; wherein R3 is a radius of curvature of the object-side surface L2a of the second lens element 11, R4 is a radius of curvature of the image-side surface L2b of the second lens element 11, R9 is a radius of curvature of the object-side surface L5a of the fifth lens element 14, and R10 is a radius of curvature of the image-side surface L5b of the fifth lens element 14; in this embodiment, r3×r4/r9×r10= 7.720.
The curve equation of the aspherical surface of each lens is expressed as follows:
wherein, X: the distance between the point on the aspheric surface, which is Y from the optical axis, and the tangent plane of the optical axis;
y: a perpendicular distance between a point on the aspherical surface and the optical axis;
r: radius of curvature of the lens at paraxial region;
k: conical surface coefficient;
A i : the i-th order aspheric coefficient.
Please refer to table 1 below, which shows detailed optical data of the short-focal telescopic optical lens of example 1 of the present invention. The object-side surface of the first lens element 10 is denoted by a surface L1a, the image-side surface is denoted by a surface L1b, and the other lens element surfaces will not be repeated.
TABLE 1
Please refer to table 2, which shows the aspherical coefficients of each lens surface of example 1 of the present invention.
TABLE 2
Example 2
As shown in fig. 5 to 8, a short-focal telescopic optical lens is composed of six lenses, in order from an object side to an image side, comprising:
the first lens element 10 with negative focal power, wherein the object-side paraxial region of the first lens element 10 is convex, and the image-side paraxial region of the first lens element 10 is concave;
the second lens element 11 with positive refractive power, wherein the object-side paraxial region of the second lens element 11 is convex, and the image-side paraxial region of the second lens element 11 is concave;
an aperture 18;
the third lens element 12 with positive refractive power, wherein the object-side paraxial region of the third lens element 12 is convex, and the image-side paraxial region of the third lens element 12 is convex;
a fourth lens element 13 with positive refractive power, wherein a concave object-side paraxial region of the fourth lens element 13 and a convex image-side paraxial region of the fourth lens element 13;
a fifth lens element 14 with negative refractive power, wherein an object-side paraxial region of the fifth lens element 14 is concave and an image-side paraxial region of the fifth lens element 14 is convex;
a sixth lens element 15 with positive refractive power, wherein the object-side paraxial region of the sixth lens element 15 is convex and the image-side paraxial region of the sixth lens element 15 is concave;
a cover glass 16 is provided between the sixth lens 15 and the image side surface 17.
The short-focus telescopic optical lens meets the following conditions:
7.00mm < TTL <7.01mm; wherein TTL is total mirror length; in this embodiment, ttl= 7.010mm.
2.40mm < EFL <2.55mm; wherein EFL is the effective focal length of the short-focus telescopic optical lens; in this embodiment, efl=2.501 mm.
2.22< fno <2.28; wherein FNO is the aperture 18 value of the short-focus telescopic optical lens; in this embodiment, fno=2.226.
HFOV = 42 degrees; wherein, HFOV is the half angle of view of the short-focus telescopic optical lens.
The short-focus telescopic optical lens meets the following conditions: 2.16mm < imgh <2.18mm; wherein ImgH is image height. In this embodiment, imgh=2.162.
The short-focus telescopic optical lens meets the following conditions: -5.96mm < f12< -5.98mm; wherein f12 is the combined focal length of the first lens 10 to the second lens 11; in this embodiment, f12= -5.973mm.
The short-focus telescopic optical lens meets the following conditions: 2.19mm < f3456<2.22mm; wherein f3456 is the combined focal length of the third lens 12, the fourth lens 13, the fifth lens 14, and the sixth lens 15; in this embodiment, f3456= 2.218mm.
The short-focus telescopic optical lens meets the following conditions: -2.73mm < f12/f3456< -2.69mm, wherein f12 is the combined focal length of the first lens 10 to the second lens 11, and f3456 is the combined focal length of the third lens 12, the fourth lens 13, the fifth lens 14, the sixth lens 15; in this embodiment, f12/f3456= -2.694mm.
The short-focus telescopic optical lens meets the following conditions: -2.45mm < f12/EFL < -2.38mm, where f12 is the combined focal length of the first lens 10 to the second lens 11, and EFL is the effective focal length of the short-focal telescopic optical lens, in this embodiment, f 12/efl= -2.389mm.
The short-focus telescopic optical lens meets the following conditions: 0.308< ImgH/TTL <0.310, where ImgH is image high and TTL is total mirror length, in this embodiment ImgH/ttl=0.308.
The short-focus telescopic optical lens meets the following conditions: 7.658< R3R 4/R9R 10<7.887; wherein R3 is a radius of curvature of the object-side surface L2a of the second lens element 11, R4 is a radius of curvature of the image-side surface L2b of the second lens element 11, R9 is a radius of curvature of the object-side surface L5a of the fifth lens element 14, and R10 is a radius of curvature of the image-side surface L5b of the fifth lens element 14; in this embodiment, r3×r4/r9×r10= 7.887.
The curve equation of the aspherical surface of each lens is expressed as follows:
wherein, X: the distance between the point on the aspheric surface, which is Y from the optical axis, and the tangent plane of the optical axis;
y: a perpendicular distance between a point on the aspherical surface and the optical axis;
r: radius of curvature of the lens at paraxial region;
k: conical surface coefficient;
A i : the i-th order aspheric coefficient.
Please refer to table 3 below, which shows detailed optical data of the short-focal telescopic optical lens of example 2 of the present invention. The object-side surface of the first lens element 10 is denoted by a surface L1a, the image-side surface is denoted by a surface L1b, and the other lens element surfaces will not be repeated.
TABLE 3 Table 3
Please refer to table 4, which shows the aspherical coefficients of each lens surface of example 2 of the present invention.
TABLE 4 Table 4
Example 3
As shown in fig. 9 to 12, a short-focal telescopic optical lens is composed of six lenses, and includes, in order from an object side to an image side:
the first lens element 10 with negative focal power, wherein the object-side paraxial region of the first lens element 10 is convex, and the image-side paraxial region of the first lens element 10 is concave;
the second lens element 11 with positive refractive power, wherein the object-side paraxial region of the second lens element 11 is convex, and the image-side paraxial region of the second lens element 11 is concave;
an aperture 18;
the third lens element 12 with positive refractive power, wherein the object-side paraxial region of the third lens element 12 is convex, and the image-side paraxial region of the third lens element 12 is convex;
a fourth lens element 13 with positive refractive power, wherein a concave object-side paraxial region of the fourth lens element 13 and a convex image-side paraxial region of the fourth lens element 13;
a fifth lens element 14 with negative refractive power, wherein an object-side paraxial region of the fifth lens element 14 is concave and an image-side paraxial region of the fifth lens element 14 is convex;
a sixth lens element 15 with positive refractive power, wherein the object-side paraxial region of the sixth lens element 15 is convex and the image-side paraxial region of the sixth lens element 15 is concave;
a cover glass 16 is provided between the sixth lens 15 and the image side surface 17.
The short-focus telescopic optical lens meets the following conditions:
7.00mm < TTL <7.01mm; wherein TTL is total mirror length; in this embodiment, ttl= 7.009mm.
2.40mm < EFL <2.55mm; wherein EFL is the effective focal length of the short-focus telescopic optical lens; in this embodiment, efl=2.443 mm.
2.22< fno <2.28; wherein FNO is the aperture 18 value of the short-focus telescopic optical lens; in this embodiment, fno= 2.277.
HFOV = 42 degrees; wherein, HFOV is the half angle of view of the short-focus telescopic optical lens.
The short-focus telescopic optical lens meets the following conditions: 2.16mm < imgh <2.18mm; wherein ImgH is image height. In this embodiment, imgh=2.175.
The short-focus telescopic optical lens meets the following conditions: -5.96mm < f12< -5.98mm; wherein f12 is the combined focal length of the first lens 10 to the second lens 11; in this embodiment, f12= -5.973mm.
The short-focus telescopic optical lens meets the following conditions: 2.19mm < f3456<2.22mm; wherein f3456 is the combined focal length of the third lens 12, the fourth lens 13, the fifth lens 14, and the sixth lens 15; in this embodiment, f3456= 2.190mm.
The short-focus telescopic optical lens meets the following conditions: -2.73mm < f12/f3456< -2.69mm, wherein f12 is the combined focal length of the first lens (10) to the second lens 11, and f3456 is the combined focal length of the third lens 12, the fourth lens 13, the fifth lens 14, the sixth lens 15; in this embodiment, f12/f3456= -2.728mm.
The short-focus telescopic optical lens meets the following conditions: -2.45mm < f12/EFL < -2.38mm, wherein f12 is the combined focal length of the first lens (10) to the second lens (11), and EFL is the effective focal length of the short-focal telescopic optical lens; in this embodiment, f12/efl= -2.445.
The short-focus telescopic optical lens meets the following conditions: 0.308< imgh/TTL <0.310; wherein, imgH is image height, TTL is total mirror length; in this embodiment, imgH/ttl=0.310.
The short-focus telescopic optical lens meets the following conditions: 7.658< R3R 4/R9R 10<7.887; wherein R3 is a radius of curvature of the object-side surface L2a of the second lens element 11, R4 is a radius of curvature of the image-side surface L2b of the second lens element 11, R9 is a radius of curvature of the object-side surface L5a of the fifth lens element 14, and R10 is a radius of curvature of the image-side surface L5b of the fifth lens element 14; in this embodiment, r3×r4/r9×r10= 7.658.
The curve equation of the aspherical surface of each lens is expressed as follows:
wherein, X: the distance between the point on the aspheric surface, which is Y from the optical axis, and the tangent plane of the optical axis;
y: a perpendicular distance between a point on the aspherical surface and the optical axis;
r: radius of curvature of the lens at paraxial region;
k: conical surface coefficient;
A i : the i-th order aspheric coefficient.
Please refer to table 5 below, which shows detailed optical data of the short-focal telescopic optical lens of example 3 of the present invention. The object-side surface of the first lens element 10 is denoted by a surface L1a, the image-side surface is denoted by a surface L1b, and the other lens element surfaces will not be repeated.
TABLE 5
Please refer to table 6, which shows the aspherical coefficients of each lens surface of example 3 of the present invention.
TABLE 6
The above examples represent only 3 embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The utility model provides a short-focus telescope optical lens, its characterized in that, short-focus telescope optical lens comprises six lenses, includes from object side to image side in proper order:
a first lens (10) having negative optical power, the object-side paraxial region of the first lens (10) being convex, the image-side paraxial region of the first lens (10) being concave;
a second lens (11) having positive optical power, wherein an object-side paraxial region of the second lens (11) is convex, and an image-side paraxial region of the second lens (11) is concave;
an aperture (18);
a third lens (12) having positive optical power, the object-side paraxial region of the third lens (12) being convex, the image-side paraxial region of the third lens (12) being convex;
a fourth lens (13) having positive optical power, wherein an object-side paraxial region of the fourth lens (13) is concave, and an image-side paraxial region of the fourth lens (13) is convex;
a fifth lens (14) having negative optical power, the object-side paraxial region of the fifth lens (14) being concave, and the image-side paraxial region of the fifth lens (14) being convex;
a sixth lens (15) having positive optical power, the object-side paraxial region of the sixth lens (15) being convex, the image-side paraxial region of the sixth lens (15) being concave;
the short-focus telescopic optical lens meets the following conditions:
7.00mm < TTL <7.01mm; wherein TTL is total mirror length;
2.40mm < EFL <2.55mm; wherein EFL is the effective focal length of the short-focus telescopic optical lens;
2.22< fno <2.28; wherein FNO is the aperture (18) value of the short-focus telescopic optical lens;
HFOV = 42 degrees; wherein, HFOV is the half angle of view of the short-focus telescopic optical lens.
2. The short-focus telescopic optical lens according to claim 1, wherein the short-focus telescopic optical lens satisfies the following condition: 2.16mm < imgh <2.18mm; wherein ImgH is image height.
3. The short-focus telescopic optical lens according to claim 2, wherein the short-focus telescopic optical lens satisfies the following condition:
-5.96mm < f12< -5.98mm; wherein f12 is a combined focal length of the first lens (10) to the second lens (11).
4. A short-focus telescopic optical lens according to claim 3, wherein the short-focus telescopic optical lens satisfies the following condition:
2.19mm < f3456<2.22mm; the f3456 is a combined focal length of the third lens (12), the fourth lens (13), the fifth lens (14) and the sixth lens (15).
5. The short-focus telescopic optical lens according to claim 4, wherein the short-focus telescopic optical lens satisfies the following condition: -2.73< f12/f3456< -2.69, wherein f12 is the combined focal length of the first lens (10) to the second lens (11), and f3456 is the combined focal length of the third lens (12), fourth lens (13), fifth lens (14), sixth lens (15).
6. The short-focus telescopic optical lens according to claim 5, wherein the short-focus telescopic optical lens satisfies the following condition: -2.45< f12/EFL < -2.38, wherein f12 is the combined focal length of the first lens (10) to the second lens (11), and EFL is the effective focal length of the short-focal telescopic optical lens.
7. The short-focus telescopic optical lens according to claim 6, wherein the short-focus telescopic optical lens satisfies the following condition: 0.308< ImgH/TTL <0.310, wherein ImgH is image height and TTL is total mirror length.
8. The short-focus telescopic optical lens according to claim 7, wherein the short-focus telescopic optical lens satisfies the following condition: 7.658< R3R 4/R9R 10<7.887; wherein R3 is a radius of curvature of the object-side surface L2a of the second lens element (11), R4 is a radius of curvature of the image-side surface L2b of the second lens element (11), R9 is a radius of curvature of the object-side surface L5a of the fifth lens element (14), and R10 is a radius of curvature of the image-side surface L5b of the fifth lens element (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210752971.6A CN114967073B (en) | 2022-06-28 | 2022-06-28 | Short-focus telescopic optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210752971.6A CN114967073B (en) | 2022-06-28 | 2022-06-28 | Short-focus telescopic optical lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114967073A CN114967073A (en) | 2022-08-30 |
| CN114967073B true CN114967073B (en) | 2023-08-01 |
Family
ID=82968304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210752971.6A Active CN114967073B (en) | 2022-06-28 | 2022-06-28 | Short-focus telescopic optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114967073B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117389010B (en) * | 2023-12-11 | 2024-03-29 | 江西联创电子有限公司 | Optical lens |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841432A (en) * | 2011-06-20 | 2012-12-26 | 大立光电股份有限公司 | Image pickup optical system |
| CN108983393A (en) * | 2018-08-14 | 2018-12-11 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110531485A (en) * | 2018-05-25 | 2019-12-03 | 南昌欧菲精密光学制品有限公司 | Imaging optical system and electronic device |
| CN110737070A (en) * | 2018-07-20 | 2020-01-31 | 三星电机株式会社 | Optical imaging system and mobile electronic device |
| CN110824671A (en) * | 2019-11-26 | 2020-02-21 | 玉晶光电(厦门)有限公司 | Optical imaging lens |
| CN212483966U (en) * | 2020-05-29 | 2021-02-05 | 纮立光电股份有限公司 | Optical imaging lens group, imaging device, and electronic device |
| CN112987261A (en) * | 2021-04-15 | 2021-06-18 | 江西联益光学有限公司 | Optical lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6508621B1 (en) * | 2018-04-26 | 2019-05-08 | エーエーシー テクノロジーズ ピーティーイー リミテッド | Imaging optical lens |
-
2022
- 2022-06-28 CN CN202210752971.6A patent/CN114967073B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841432A (en) * | 2011-06-20 | 2012-12-26 | 大立光电股份有限公司 | Image pickup optical system |
| CN110531485A (en) * | 2018-05-25 | 2019-12-03 | 南昌欧菲精密光学制品有限公司 | Imaging optical system and electronic device |
| CN110737070A (en) * | 2018-07-20 | 2020-01-31 | 三星电机株式会社 | Optical imaging system and mobile electronic device |
| CN108983393A (en) * | 2018-08-14 | 2018-12-11 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110824671A (en) * | 2019-11-26 | 2020-02-21 | 玉晶光电(厦门)有限公司 | Optical imaging lens |
| CN212483966U (en) * | 2020-05-29 | 2021-02-05 | 纮立光电股份有限公司 | Optical imaging lens group, imaging device, and electronic device |
| CN112987261A (en) * | 2021-04-15 | 2021-06-18 | 江西联益光学有限公司 | Optical lens |
Non-Patent Citations (1)
| Title |
|---|
| 一款1600万像素手机镜头设计;黄耀林;王敏;郭王凯;;光学仪器;40(01);39-43 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114967073A (en) | 2022-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108363183B (en) | Image pickup optical lens | |
| CN210166555U (en) | Optical system, lens module and electronic equipment | |
| CN111538138B (en) | Image pickup optical lens | |
| CN111158114A (en) | Image pickup optical lens | |
| CN110007426B (en) | Image pickup optical lens | |
| CN114967073B (en) | Short-focus telescopic optical lens | |
| CN111736316B (en) | Image pickup optical lens | |
| CN111830690B (en) | Image pickup optical lens | |
| CN111025557B (en) | Image pickup optical lens | |
| CN109061832B (en) | Image pickup optical lens | |
| CN114779432B (en) | Wide-angle optical lens | |
| CN114815174B (en) | Optical lens for long-distance shooting | |
| CN112285895B (en) | Image pickup optical lens | |
| CN213122416U (en) | Optical system, lens module and electronic equipment | |
| CN111025596B (en) | Image pickup optical lens | |
| CN111736322B (en) | Image pickup optical lens | |
| CN111352220B (en) | Image pickup optical lens | |
| WO2022056934A1 (en) | Optical imaging system, image capturing module, and electronic device | |
| CN111123475B (en) | Image pickup optical lens | |
| CN113759516A (en) | Image pickup optical lens | |
| CN111123477B (en) | Image pickup optical lens | |
| CN114967074B (en) | Short-focus optical lens | |
| CN109143541B (en) | Image pickup optical lens | |
| CN115390222B (en) | Two-piece type short-focus optical lens | |
| CN115453715B (en) | Three-piece type short-focus optical lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |