CN108563000B - Super star light level high resolution power prime lens - Google Patents
Super star light level high resolution power prime lens Download PDFInfo
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- CN108563000B CN108563000B CN201810327168.1A CN201810327168A CN108563000B CN 108563000 B CN108563000 B CN 108563000B CN 201810327168 A CN201810327168 A CN 201810327168A CN 108563000 B CN108563000 B CN 108563000B
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- 230000003287 optical effect Effects 0.000 claims abstract description 30
- 239000011521 glass Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000003384 imaging method Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 102220414581 c.33A>G Human genes 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 102220216906 rs1060505002 Human genes 0.000 description 1
- 102220228145 rs1064794513 Human genes 0.000 description 1
- 102220264750 rs1305455942 Human genes 0.000 description 1
- 102220008337 rs1437698471 Human genes 0.000 description 1
- 102220101549 rs199890548 Human genes 0.000 description 1
- 102220112179 rs3743602 Human genes 0.000 description 1
- 102220065682 rs77311724 Human genes 0.000 description 1
- 102220095236 rs876658436 Human genes 0.000 description 1
Classifications
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- 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
- G02B13/005—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having spherical lenses only
-
- 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
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
-
- 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
Abstract
The invention provides a superstar optical-level high-resolution fixed focus lens, which comprises a first lens with convex-concave negative optical power, a second lens with biconcave negative optical power, a third lens with concave-convex positive optical power, a fourth lens with biconvex positive optical power, a fifth lens with convex-concave positive optical power, a sixth lens with concave-convex negative optical power, a seventh lens with biconcave negative optical power, an eighth lens with biconvex positive optical power, a ninth lens with biconvex positive optical power, a tenth lens with convex-concave negative optical power and an eleventh lens with biconvex positive optical power, which are sequentially arranged from an object side to an image side along an optical axis. The invention adopts 11 lenses with special settings, has the characteristic of super-large light quantity, is particularly suitable for monitoring requirements under complex conditions, and achieves the purposes of improving imaging quality and supporting a wide angle of 70 degrees of a field angle under the premise of ensuring F1.0 light transmission of the lens, and simultaneously can ensure resolution and meet imaging requirements when used in an environment of-40-70 ℃.
Description
Technical Field
The invention relates to the technical field of lenses, in particular to a superstar optical-grade high-resolution fixed-focus lens.
Background
With the increasing popularization of security monitoring facilities, the requirements on the monitoring environment and the picture are higher and higher, and a monitoring picture with higher pixels and larger light quantity is required. At present, image sensor manufacturers have already proposed 1/1.8' large-image-plane low-illumination image sensors, which have better light receiving capacity. However, there are few lenses available on the market that can be matched with the present lens, so it is necessary to develop a 1/1.8 "lens with the corresponding ultra-low illuminance F1.0.
Disclosure of Invention
The invention provides a superstar light-level high-resolution fixed-focus lens which overcomes the defects existing in the prior art and is more matched with a large-image-plane low-illumination image sensor.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a superstar optical level high resolution power fixed focus lens, includes first lens, second lens, third lens, fourth lens, fifth lens, sixth lens, seventh lens, eighth lens that arrange in proper order along the optical axis from object space to image space, ninth lens, tenth lens and eleventh lens, first lens is convex-concave negative focal power lens, the second lens is biconcave negative focal power lens, the third lens is concave-convex positive focal power lens, the fourth lens is biconvex positive focal power lens, the fifth lens is convex-concave positive focal power lens, the sixth lens is convex-concave negative focal power lens, the seventh lens is biconcave negative focal power lens, the eighth lens is biconvex positive focal power lens, the tenth lens is convex-concave negative focal power lens, the eleventh lens is biconvex positive focal power lens.
Further, the first to eleventh lenses satisfy the following condition:
wherein f1 to f11 sequentially represent lens focal lengths of the first lens to the eleventh lens, respectively; n1 to n11 represent refractive indices of the first lens to the eleventh lens, respectively, in order; r1, R3, R5, R7, R9, R11, R13, R15, R17, R19, and R21 sequentially represent radii of curvature of the first lens element to the eleventh lens element toward the center of the object-side surface, respectively, R2, R4, R6, R8, R10, R12, R14, R16, R18, R20, and R22 sequentially represent radii of curvature of the first lens element to the eleventh lens element toward the center of the image-side surface, respectively, and "-" represents directions are negative.
Preferably, the fifth lens and the sixth lens are cemented to form a first cemented lens.
Preferably, the seventh lens is cemented with the eighth lens to form a second cemented lens.
Preferably, the tenth lens is cemented with the eleventh lens to form a third cemented lens.
Preferably, a diaphragm is disposed between the sixth lens and the seventh lens.
Preferably, all of the first to eleventh lenses are spherical mirrors.
Preferably, all of the first to eleventh lenses are glass spherical mirrors.
The invention provides a superstar optical-level high-resolution fixed focus lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are sequentially arranged from an object side to an image side along an optical axis, wherein the first lens is a convex-concave negative focal power lens, the second lens is a biconcave negative focal power lens, the third lens is a concave-convex positive focal power lens, the fourth lens is a biconvex positive focal power lens, the fifth lens is a convex-concave positive focal power lens, the sixth lens is a convex-concave negative focal power lens, the seventh lens is a biconvex positive focal power lens, the ninth lens is a biconvex positive focal power lens, the tenth lens is a convex-concave negative focal power lens, and the eleventh lens is a biconvex positive focal power lens. The invention adopts 11 lenses with specific settings, has the characteristic of ultra-large light flux by creatively designing lens parameters, is particularly suitable for monitoring requirements under complex conditions, improves imaging quality on the premise of ensuring that the lens is in F1.0 large light flux, supports the wide angle of view angle of 70 degrees, and can ensure resolution and meet imaging requirements when used in an environment of-40-70 ℃.
Drawings
Fig. 1 is a schematic structural diagram of a super star optical-level high-resolution fixed focus lens of the present invention.
Detailed Description
Embodiments of the present invention will now be described in detail with reference to the drawings, which are intended to be used as references and illustrations only, and are not intended to limit the scope of the invention.
As shown in fig. 1, a superstar-level high-resolution fixed focus lens comprises a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6, a seventh lens 7, an eighth lens 8, a ninth lens 9, a tenth lens 10 and an eleventh lens 11 which are sequentially arranged from an object side to an image side along an optical axis, wherein the first lens 1 is a convex-concave negative focal lens, the second lens 2 is a biconcave negative focal lens, the third lens 3 is a concave-convex positive focal lens, the fourth lens 4 is a biconvex positive focal lens, the fifth lens 5 is a convex-concave positive focal lens, the sixth lens 6 is a convex-concave negative focal lens, the seventh lens 7 is a biconcave negative focal lens, the eighth lens 8 is a biconvex positive focal lens, the ninth lens 9 is a biconvex positive focal lens, the tenth lens 10 is a negative focal lens, and the eleventh lens 11 is a biconvex positive focal lens.
As a further improvement of the present embodiment, the first to eleventh lenses 1 to 11 satisfy the following conditions:
| f1＝-30～-20 | n1＝1.5～1.6 | R1＝15～25 | R2＝6～9 |
| f2＝-20～-10 | n2＝1.7～1.8 | R3＝-20～-10 | R4＝100～500 |
| f3＝20～32 | n3＝1.7～1.8 | R5＝-35～-25 | R6＝-20～-10 |
| f4＝15～20 | n4＝1.9～2.1 | R7＝20～30 | R8＝-60～-40 |
| f5＝30～40 | n5＝1.5～1.6 | R9＝10～20 | R10＝30～40 |
| f6＝-25～-15 | n6＝1.5～1.65 | R11＝30～40 | R12＝8～13 |
| f7＝-12～-8 | n7＝1.7～1.8 | R13＝-20～-12 | R14＝10～20 |
| f8＝10～16 | n8＝1.5～1.6 | R15＝11～16 | R16＝-16～-11 |
| f9＝15～23 | n9＝1.5～1.65 | R17＝15～25 | R18＝-35～-20 |
| f10＝-35～-25 | n10＝1.7～1.85 | R19＝10～20 | R20＝7～12 |
| f11＝10～17 | n11＝1.5～1.65 | R21＝5.5～10 | R22＝-200 |
wherein f1 to f11 sequentially represent lens focal lengths of the first lens 1 to the eleventh lens 11, respectively, and a numerical front symbol "-" thereof represents a virtual image; n1 to n11 represent refractive indices of the first lens to the eleventh lens, respectively, in order; r1, R3, R5, R7, R9, R11, R13, R15, R17, R19, and R21 sequentially represent radii of curvature of the first lens element 1 to the eleventh lens element 11 toward the center of the object-side surface, respectively, and R2, R4, R6, R8, R10, R12, R14, R16, R18, R20, and R22 sequentially represent radii of curvature of the first lens element 1 to the eleventh lens element 11 toward the center of the image-side surface, respectively, with the former "-" representing a negative direction, i.e., representing a direction (concave for the object-side surface, and convex for the image-side surface).
In this embodiment, the fifth lens 5 and the sixth lens 6 are cemented to form a first cemented lens, where r11=r10.
In this embodiment, the seventh lens 7 and the eighth lens 8 are cemented to form a second cemented lens, where r15=r14.
In this embodiment, the tenth lens 10 and the eleventh lens 11 are cemented to form a third cemented lens, where r21=r20.
In this embodiment, a diaphragm 67 is disposed between the sixth lens 6 and the seventh lens 7.
In this embodiment, all of the first to eleventh lenses 1 to 11 are spherical mirrors, and specifically, all of the first to eleventh lenses 1 to 11 are glass spherical mirrors.
In the present embodiment, the optical physical parameters of the first lens 1 to the eleventh lens 11 are as follows:
wherein R is the radius of the center of the surface, D is the distance between the corresponding optical surface and the next optical surface on the optical axis; nd corresponds to the refractive index of d-light (wavelength 587 nm). S1 and S2 are an object side surface and an image side surface of the first lens 1; s3 and S4 are the object side surface and the image side surface of the second lens 2; s5 and S6 are an object side surface and an image side surface of the third lens 3; s7 and S8 are the object side surface and the image side surface of the fourth lens 4, and the diaphragm represents the optical plane where the diaphragm is located; s9 is the object side surface of the first cemented lens, S10& S11 is the cemented surface of the first cemented lens, and S12 is the image side surface of the first cemented lens; s13 is the object side surface of the second cemented lens, S14& S15 is the cemented surface of the second cemented lens, and S16 is the image side surface of the second cemented lens; s17 and S18 are an object side surface and an image side surface of the ninth lens 9; s19 is the object side surface of the third cemented lens, S20& S21 is the cemented surface of the third cemented lens, and S22 is the image side surface of the third cemented lens.
The lens manufactured according to the embodiment has the following indexes: f1.0 maximum aperture, 1/1.8' image plane, 8mm focal length, 70 degree maximum field angle and optical total length less than 46 mm.
The above disclosure is illustrative of the preferred embodiments of the present invention and should not be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (7)
1. The utility model provides a superstar light level high resolution power fixed focus camera lens, by first lens, second lens, third lens, fourth lens, fifth lens, sixth lens, seventh lens, eighth lens that follow the optical axis and arrange in proper order from object space to image space, ninth lens, tenth lens and eleventh lens constitute its characterized in that: the first lens is a convex-concave negative focal power lens, the second lens is a biconcave negative focal power lens, the third lens is a convex-concave positive focal power lens, the fourth lens is a biconvex positive focal power lens, the fifth lens is a convex-concave positive focal power lens, the sixth lens is a convex-concave negative focal power lens, the seventh lens is a biconcave negative focal power lens, the eighth lens is a biconvex positive focal power lens, the ninth lens is a biconvex positive focal power lens, the tenth lens is a convex-concave negative focal power lens, and the eleventh lens is a biconvex positive focal power lens;
the optical physical parameters of the first lens to the eleventh lens are as follows:
Wherein R is the radius of the center of the surface, D is the distance between the corresponding optical surface and the next optical surface on the optical axis; nd corresponds to d light, and has a refractive index of 587 nm.
2. The superstar light level high resolution power fixed focus lens of claim 1, wherein: the fifth lens and the sixth lens are glued to form a first glued lens.
3. The superstar light level high resolution power fixed focus lens of claim 1, wherein: the seventh lens is glued with the eighth lens to form a second glued lens.
4. The superstar light level high resolution power fixed focus lens of claim 1, wherein: the tenth lens is cemented with the eleventh lens to form a third cemented lens.
5. The superstar light level high resolution power fixed focus lens of claim 1, wherein: a diaphragm is arranged between the sixth lens and the seventh lens.
6. The superstar light level high resolution power fixed focus lens of claim 1, wherein: the first to eleventh lenses are all spherical mirrors.
7. The superstar light level high resolution power fixed focus lens of claim 1, wherein: the first to eleventh lenses are all glass spherical mirrors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810327168.1A CN108563000B (en) | 2018-04-12 | 2018-04-12 | Super star light level high resolution power prime lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810327168.1A CN108563000B (en) | 2018-04-12 | 2018-04-12 | Super star light level high resolution power prime lens |
Publications (2)
| Publication Number | Publication Date |
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| CN108563000A CN108563000A (en) | 2018-09-21 |
| CN108563000B true CN108563000B (en) | 2024-01-02 |
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| CN201810327168.1A Active CN108563000B (en) | 2018-04-12 | 2018-04-12 | Super star light level high resolution power prime lens |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328445B (en) * | 2019-07-12 | 2020-12-22 | 卡门哈斯激光科技（苏州）有限公司 | Near-infrared monochromatic objective lens |
| US11815666B2 (en) | 2019-09-06 | 2023-11-14 | Sintai Optical (Shenzhen) Co., Ltd. | Wide-angle lens assembly including nine lenses of −−+++−++− or −−+++−+−+, or ten lenses of −−+++−−+++ or −−−+++−+−+ refractive powers |
| CN112462485B (en) * | 2019-09-06 | 2022-07-26 | 信泰光学(深圳)有限公司 | Imaging lens |
| CN111781708A (en) * | 2020-08-20 | 2020-10-16 | 东莞市长益光电有限公司 | Fixed focus lens for realizing full-color photography under low illumination |
| CN112394481B (en) * | 2020-11-18 | 2023-10-24 | 西安玄瑞光电科技有限公司 | Ultra-large relative aperture low-light lens |
| CN114019652B (en) * | 2021-10-13 | 2023-06-13 | 江西凤凰光学科技有限公司 | Wide-angle large-target-surface small-distortion optical prime lens |
| CN113805317A (en) * | 2021-10-18 | 2021-12-17 | 舜宇光学(中山)有限公司 | Fixed focus lens |
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| JPH10133103A (en) * | 1996-10-28 | 1998-05-22 | Nikon Corp | Wide-angle photographic lens |
| JP2008176231A (en) * | 2007-01-22 | 2008-07-31 | Matsushita Electric Ind Co Ltd | Zoom lens system, imaging apparatus and camera |
| CN205539672U (en) * | 2016-03-29 | 2016-08-31 | 九江迅通新能源科技有限公司 | Super wide angle micro lens who can be used to monitored control system |
| CN107229107A (en) * | 2017-05-12 | 2017-10-03 | 西安中科飞图光电科技有限公司 | Optical imaging lens and imaging device |
| CN208092312U (en) * | 2018-04-12 | 2018-11-13 | 东莞市宇瞳光学科技股份有限公司 | A kind of superstar lighting level high resolution tight shot |
-
2018
- 2018-04-12 CN CN201810327168.1A patent/CN108563000B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10133103A (en) * | 1996-10-28 | 1998-05-22 | Nikon Corp | Wide-angle photographic lens |
| JP2008176231A (en) * | 2007-01-22 | 2008-07-31 | Matsushita Electric Ind Co Ltd | Zoom lens system, imaging apparatus and camera |
| CN205539672U (en) * | 2016-03-29 | 2016-08-31 | 九江迅通新能源科技有限公司 | Super wide angle micro lens who can be used to monitored control system |
| CN107229107A (en) * | 2017-05-12 | 2017-10-03 | 西安中科飞图光电科技有限公司 | Optical imaging lens and imaging device |
| CN208092312U (en) * | 2018-04-12 | 2018-11-13 | 东莞市宇瞳光学科技股份有限公司 | A kind of superstar lighting level high resolution tight shot |
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