CN108227155B - Super star light level high definition large image plane prime lens - Google Patents
Super star light level high definition large image plane prime lens Download PDFInfo
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- CN108227155B CN108227155B CN201810326742.1A CN201810326742A CN108227155B CN 108227155 B CN108227155 B CN 108227155B CN 201810326742 A CN201810326742 A CN 201810326742A CN 108227155 B CN108227155 B CN 108227155B
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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
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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
- G02B13/0005—Optical objectives specially designed for the purposes specified below having F-Theta characteristic
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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
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The invention provides a superstar high-definition large-image-surface fixed focus lens, which comprises a first lens with convex-concave negative focal power, a second lens with concave-convex negative focal power, a third lens with concave-convex positive focal power, a fourth lens with biconvex positive focal power, a fifth lens with biconvex positive focal power, a sixth lens with biconcave negative focal power, a seventh lens with biconvex positive focal power, an eighth lens with concave-convex negative focal power, a ninth lens with biconvex positive focal power and a tenth lens with concave-convex positive focal power, which are sequentially arranged from an object side to an image side along an optical axis. The invention adopts 10 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 110 degrees of the angle of view, and 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 light-level high-definition large-image-plane 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-definition large-image-surface fixed focus lens which overcomes the defects existing in the prior art and is more matched with a large-image-surface 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 high-definition big image plane fixed focus lens of superstar optical level, 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 and tenth lens, first lens is unsmooth negative focal power lens, the second lens is unsmooth negative focal power lens, the third lens is unsmooth positive focal power lens, the fourth lens is biconvex positive focal power lens, the fifth lens is biconvex positive focal power lens, the sixth lens is biconcave negative focal power lens, the seventh lens is biconvex positive focal power lens, the eighth lens is unsmooth negative focal power lens, the ninth lens is biconvex positive focal power lens, the tenth lens is unsmooth positive focal power lens.
Further, the first to tenth lenses satisfy the following conditions:
wherein f1 to f10 sequentially represent lens focal lengths of the first lens to the tenth lens, respectively; n1 to n10 represent refractive indices of the first lens to the tenth lens, respectively, in order; r1, R3, R5, R7, R9, R11, R13, R15, R17 and R19 sequentially represent the curvature radius of the first lens to the eleventh lens towards the center of the surface of the object side, R2, R4, R6, R8, R10, R12, R14, R16, R18 and R20 sequentially represent the curvature radius of the first lens to the eleventh lens towards the center of the surface of the image side, respectively, and "-" represents the direction is 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, a diaphragm is arranged between the fourth lens and the fifth lens.
Preferably, all of the first to tenth lenses are spherical mirrors.
Preferably, all of the first to tenth lenses are glass spherical mirrors.
The invention provides a superstar light level high-definition large-image-surface 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, and is characterized in that: the first lens is a convex-concave negative focal power lens, the second lens is a concave-convex 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 biconvex positive focal power lens, the sixth lens is a biconcave negative focal power lens, the seventh lens is a biconvex positive focal power lens, the eighth lens is a concave-convex negative focal power lens, the ninth lens is a biconvex positive focal power lens, and the tenth lens is a convex-concave positive focal power lens. The invention adopts 10 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 110 degrees of the angle of view, and can ensure resolution and meet imaging requirements when used in an environment of-40-70 ℃.
Drawings
Fig. 1 is a schematic diagram of a structure of a superstar high-definition large-image-plane fixed focus lens of the 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, the superstar high-definition large-image-surface 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 and a tenth lens 10 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 convex-concave negative focal lens, the third lens 3 is a convex-concave positive focal lens, the fourth lens 4 is a biconvex positive focal lens, the fifth lens 5 is a biconvex positive focal lens, the sixth lens 6 is a biconcave negative focal lens, the seventh lens 7 is a biconvex positive focal lens, the eighth lens 8 is a convex-concave negative focal lens, the ninth lens 9 is a biconvex positive focal lens, and the tenth lens 10 is a convex-concave positive focal lens.
As a further improvement of the present embodiment, the first to tenth lenses satisfy the following condition:
| f1＝-12～-9 | n1＝1.6～1.7 | R1＝50～100 | R2＝6～9.5 |
| f2＝-15～-9 | n2＝1.9～2.1 | R3＝-20～-7 | R4＝-120～-70 |
| f3＝20～32 | n3＝1.9～2.0 | R5＝-25～-15 | R6＝-20～-10 |
| f4＝15～20 | n4＝1.9～2.1 | R7＝20～30 | R8＝-60～-40 |
| f5＝10～25 | n5＝1.5～1.6 | R9＝10～20 | R10＝-40～-20 |
| f6＝-25～-10 | n6＝1.65～1.75 | R11＝-40～-20 | R12＝8～13 |
| f7＝9～14 | n7＝1.6～1.8 | R13＝23～35 | R14＝-15～-7 |
| f8＝-16～-10 | n8＝1.8～2.0 | R15＝-12～-7 | R16＝-22～-15 |
| f9＝15～23 | n9＝1.4～1.5 | R17＝15～25 | R18＝-15～-15 |
| f10＝25～35 | n10＝1.55～1.65 | R19＝10～20 | R20＝70～200 |
wherein f1 to f10 sequentially represent lens focal lengths of the first lens to the tenth lens, respectively, and a numerical front symbol "-" thereof represents a virtual image; n1 to n10 represent refractive indices of the first lens to the tenth lens, respectively, in order; r1, R3, R5, R7, R9, R11, R13, R15, R17 and R19 sequentially represent the radii of curvature of the first lens element to the eleventh lens element toward the center of the object-side surface, and R2, R4, R6, R8, R10, R12, R14, R16, R18 and R20 sequentially represent the radii of curvature of the first lens element to the eleventh lens element toward the center of the image-side surface, respectively, wherein the "-" before the numerical value represents the negative direction, namely the direction (the object-side surface corresponds to a concave surface, and the image-side surface corresponds to a convex surface).
In the present embodiment, the fifth lens 5 and the sixth lens 6 are cemented to form a first cemented lens, at which time r10=r11.
In the present embodiment, the seventh lens 7 is cemented with the eighth lens 8 to form a second cemented lens, at which time r14=r15.
In the present embodiment, a diaphragm 45 is provided between the fourth lens 4 and the fifth lens 5.
In this embodiment, all of the first lens to the tenth lens are spherical mirrors.
In this embodiment, all of the first lens to the tenth lens are glass spherical mirrors.
In this embodiment, the optical physical parameters of the first lens to the tenth 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 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 and S20 are the object side surface and the image side surface of the tenth lens 10.
The lens manufactured according to the embodiment has the following indexes: f1.0 maximum aperture, 1/1.8' image plane, focal length 6mm, maximum 110 degree angle of view 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 (2)
1. The utility model provides a high-definition big image plane fixed focus camera lens of super star light level, comprises first lens, second lens, third lens, fourth lens, diaphragm, fifth lens, sixth lens, seventh lens, eighth lens, ninth lens and tenth lens that follow the optical axis and arrange in proper order from object space to image space, its characterized in that:
the optical physical parameters of the superstar light level high-definition large-image-plane fixed focus lens are as follows:
Wherein, the unit of R is mm, the unit of D is mm, R is the size of the center radius of the lens surface, and D is the distance from the corresponding optical surface to the next optical surface on the optical axis; nd corresponds to the refractive index of d light, the wavelength of d light being 587nm;
the fifth lens and the sixth lens are glued to form a first glued lens;
the seventh lens and the eighth lens are glued to form a second glued lens;
s1 and S2 are the object side surface and the image side surface of the first lens; s3 and S4 are the object side surface and the image side surface of the second lens; s5 and S6 are the object side surface and the image side surface of the third lens; s7 and S8 are the object side surface and the image side surface of the fourth lens, 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; s19 and S20 are an object side surface and an image side surface of the tenth lens.
2. The superstar light level high-definition large-image-surface fixed focus lens as claimed in claim 1, wherein: the first to tenth lenses are all glass spherical mirrors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810326742.1A CN108227155B (en) | 2018-04-12 | 2018-04-12 | Super star light level high definition large image plane prime lens |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810326742.1A CN108227155B (en) | 2018-04-12 | 2018-04-12 | Super star light level high definition large image plane prime lens |
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| CN108227155A CN108227155A (en) | 2018-06-29 |
| CN108227155B true CN108227155B (en) | 2023-09-22 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110955016B (en) * | 2018-09-26 | 2022-04-01 | 信泰光学(深圳)有限公司 | Wide-angle 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385147A (en) * | 2010-08-31 | 2012-03-21 | 株式会社尼康 | Zoom lens, optical apparatus and method of manufacturing zoom lens |
| CN208092313U (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 big image planes tight shot of superstar lighting level high definition |
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2018
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385147A (en) * | 2010-08-31 | 2012-03-21 | 株式会社尼康 | Zoom lens, optical apparatus and method of manufacturing zoom lens |
| CN208092313U (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 big image planes tight shot of superstar lighting level high definition |
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