CN114994874B - Vehicle-mounted optical system lens - Google Patents
Vehicle-mounted optical system lens Download PDFInfo
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- CN114994874B CN114994874B CN202210840760.8A CN202210840760A CN114994874B CN 114994874 B CN114994874 B CN 114994874B CN 202210840760 A CN202210840760 A CN 202210840760A CN 114994874 B CN114994874 B CN 114994874B
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- lens
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- optical system
- vehicle
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- 230000003287 optical effect Effects 0.000 title claims abstract description 51
- 230000005499 meniscus Effects 0.000 claims abstract description 8
- 239000000571 coke Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 abstract description 7
- 238000004026 adhesive bonding Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 102100034112 Alkyldihydroxyacetonephosphate synthase, peroxisomal Human genes 0.000 description 2
- 101000799143 Homo sapiens Alkyldihydroxyacetonephosphate synthase, peroxisomal Proteins 0.000 description 2
- 238000000848 angular dependent Auger electron spectroscopy Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000000007 visual effect Effects 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
- G02B13/002—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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention belongs to the technical field of lenses, and particularly relates to a vehicle-mounted optical system lens which comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens and a fifth lens, wherein the first lens, the second lens, the third lens, the diaphragm, the fourth lens and the fifth lens are sequentially arranged from an object plane to an image plane along an optical axis, the first lens is a meniscus negative lens, the second lens is an aspheric meniscus negative lens, the third lens is a biconvex positive lens, the fourth lens is an aspheric negative lens, the fifth lens is an aspheric positive lens, and the fourth lens and the fifth lens are glued to form a glued lens. The invention has novel structure and ingenious design, the second lens, the fourth lens and the fifth lens are all formed into aspheric lenses, the first lens and the third lens are matched, and meanwhile, the fourth lens and the fifth lens are glued by adopting a lens gluing process, so that the invention has the characteristics of large field of view, precision, ultrathin property, small temperature drift, good imaging quality and the like in high and low temperature environments, and has low cost and extremely high cost performance.
Description
Technical Field
The invention belongs to the technical field of lenses, and particularly relates to a vehicle-mounted optical system lens.
Background
The ADAS system improves the perception capability of the automobile to the surrounding environment by giving the automobile machine vision, so that effective driving assistance is formed, the driving quality is improved, and the probability of traffic accident caused by improper driving behavior is reduced. All visual sources of ADAS are various lenses which are arranged at all parts of a vehicle body and serve as 'eyes', and the lenses also need to ensure certain imaging quality.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the vehicle-mounted optical system lens which has large field of view, precision, ultra-thin, small temperature drift in high and low temperature environments and good imaging quality.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a vehicle-mounted optical system lens, includes first lens, second lens, third lens, diaphragm, fourth lens and fifth lens, first lens the second lens the third lens the diaphragm fourth lens and fifth lens set gradually along the optical axis from object plane to image plane, first lens is the meniscus negative lens, the second lens is the aspherical meniscus negative lens, third lens is the biconvex positive lens, fourth lens is the aspherical negative lens, fifth lens is the aspherical positive lens, fourth lens and fifth lens veneer form the cemented lens.
The first lens and the third lens are made of glass, and the second lens, the fourth lens and the fifth lens are made of plastic.
Wherein, the focal length (EFL) of the vehicle-mounted optical system lens satisfies the relation: focal Length (EFL) of 1.00mm or less or 1.35mm or less; the aperture value (F/NO) of the vehicle-mounted optical system lens satisfies the relation: an aperture value (F/NO) of 1.80 or less or 2.20 or less; the Back Focus (BFL) of the vehicle-mounted optical system lens satisfies the relation: the back coke (BFL) is less than or equal to 1.50mm and less than or equal to 4.00mm.
Wherein, the focal length (EFL) of the vehicle-mounted optical system lens is 1.27mm, and the aperture value (F/NO) of the vehicle-mounted optical system lens is 2.0mm.
The focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, and the vehicle-mounted optical system lens satisfies the following relation: -f 1 is less than or equal to 4.85mm and less than or equal to-3.95 mm; -f 2 is less than or equal to 3.10mm and less than or equal to-2.20 mm; f3 is more than or equal to 2.27mm and less than or equal to 3.15mm; -f 4 is less than or equal to 1.40mm and less than or equal to-1.00 mm; f5 is more than or equal to 1.05mm and less than or equal to 1.45mm.
Wherein, the refractive index of the first lens is Nd1, the refractive index of the second lens is Nd2, the refractive index of the third lens is Nd3, the refractive index of the fourth lens is Nd4, the refractive index of the fifth lens is Nd5, and the vehicle-mounted optical system lens satisfies the relation: nd1 is more than or equal to 1.78 and less than or equal to 1.88; nd2 is more than or equal to 1.48 and less than or equal to 1.58; nd3 is more than or equal to 1.72 and less than or equal to 1.85; nd4 is more than or equal to 1.52 and less than or equal to 1.62; nd5 is more than or equal to 1.48 and less than or equal to 1.58.
The distance between the first lens and the second lens is CV1, the distance between the second lens and the third lens is CV2, the distance between the third lens and the diaphragm is CV3, the distance between the diaphragm and the fourth lens is CV4, and the vehicle-mounted optical system lens satisfies the following relation: CV1 is more than or equal to 1.30mm and less than or equal to 1.70mm; CV2 is more than or equal to 0.90mm and less than or equal to 1.10mm; CV3 is more than or equal to 0.03mm and less than or equal to 0.15mm; CV4 is more than or equal to 0.03mm and less than or equal to 0.30mm.
Wherein, the vehicle-mounted optical system lens satisfies the relation: CV1/CV2 is more than or equal to 2.0 and less than or equal to 2.8.
The invention has the beneficial effects that: the invention has novel structure and ingenious design, the second lens, the fourth lens and the fifth lens are all formed into aspheric lenses, the first lens and the third lens are matched, and meanwhile, the fourth lens and the fifth lens are glued by adopting a lens gluing process, so that the invention has the characteristics of large field of view, precision, ultrathin property, small temperature drift, good imaging quality and the like in high and low temperature environments, and has low cost and extremely high cost performance.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The reference numerals are respectively: 1. the lens comprises a first lens, 2, a second lens, 3, a third lens, 4, a diaphragm, 5, a fourth lens, 6, a fifth lens, 7 and an optical filter.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention. The present invention will be described in detail below with reference to the accompanying drawings.
The utility model provides a vehicle-mounted optical system lens, as shown in fig. 1, includes first lens 1, second lens 2, third lens 3, diaphragm 4, fourth lens 5 and fifth lens 6, first lens 1, second lens 2, third lens 3, diaphragm 4, fourth lens 5 and fifth lens 6 set gradually along the optical axis from object plane to image surface, first lens 1 is the meniscus negative lens, second lens 2 is the aspherical meniscus negative lens, third lens 3 is the biconvex positive lens, fourth lens 5 is the aspherical negative lens, fifth lens 6 is the aspherical positive lens, fourth lens 5 and fifth lens 6 glue and form the cemented lens. Specifically, the invention has novel structure and ingenious design, the second lens 2, the fourth lens 5 and the fifth lens 6 are all formed into aspheric lenses, the first lens 1 and the third lens 3 are matched, and meanwhile, the fourth lens 5 and the fifth lens 6 are glued by adopting a lens gluing process, so that the invention has the characteristics of large field of view, precision, ultra-thin, low temperature and high imaging quality, low cost and extremely high cost performance, and the like under high and low temperature environments.
Further, the present vehicle-mounted optical system lens further includes an optical filter 7, where the first lens 1, the second lens 2, the third lens 3, the diaphragm 4, the fourth lens 5, the fifth lens 6, and the optical filter 7 are sequentially disposed from the object plane to the image plane along the optical axis.
In the in-vehicle optical system lens of the present embodiment, the materials of the first lens element 1 and the third lens element 3 are glass, and the materials of the second lens element 2, the fourth lens element 5 and the fifth lens element 6 are plastic. In particular, the imaging quality of the above arrangement is good.
An in-vehicle optical system lens described in this example, a focal length (EFL) of the in-vehicle optical system lens satisfies a relationship: focal Length (EFL) of 1.00mm or less or 1.35mm or less; the aperture value (F/NO) of the vehicle-mounted optical system lens satisfies the relation: an aperture value (F/NO) of 1.80 or less or 2.20 or less; the Back Focus (BFL) of the vehicle-mounted optical system lens satisfies the relation: the back coke (BFL) is less than or equal to 1.50mm and less than or equal to 4.00mm.
The in-vehicle optical system lens of this example has a focal length (EFL) of 1.27mm and an aperture value (F/NO) of 2.0mm.
In the vehicle-mounted optical system lens of the present example, the focal length of the first lens 1 is f1, the focal length of the second lens 1 is f2, the focal length of the third lens 1 is f3, the focal length of the fourth lens 1 is f4, and the focal length of the fifth lens 1 is f5, and the vehicle-mounted optical system lens satisfies the following relationship: -f 1 is less than or equal to 4.85mm and less than or equal to-3.95 mm; -f 2 is less than or equal to 3.10mm and less than or equal to-2.20 mm; f3 is more than or equal to 2.27mm and less than or equal to 3.15mm; -f 4 is less than or equal to 1.40mm and less than or equal to-1.00 mm; f5 is more than or equal to 1.05mm and less than or equal to 1.45mm.
In the in-vehicle optical system lens of the present example, the refractive index of the first lens 1 is Nd1, the refractive index of the second lens 2 is Nd2, the refractive index of the third lens 3 is Nd3, the refractive index of the fourth lens 5 is Nd4, the refractive index of the fifth lens 6 is Nd5, and the in-vehicle optical system lens satisfies the following relation: nd1 is more than or equal to 1.78 and less than or equal to 1.88; nd2 is more than or equal to 1.48 and less than or equal to 1.58; nd3 is more than or equal to 1.72 and less than or equal to 1.85; nd4 is more than or equal to 1.52 and less than or equal to 1.62; nd5 is more than or equal to 1.48 and less than or equal to 1.58.
In the in-vehicle optical system lens of the present example, the distance between the first lens 1 and the second lens 2 is CV1, the distance between the second lens 2 and the third lens 3 is CV2, the distance between the third lens 3 and the diaphragm 4 is CV3, the distance between the diaphragm 4 and the fourth lens 5 is CV4, and the in-vehicle optical system lens satisfies the following relationship: CV1 is more than or equal to 1.30mm and less than or equal to 1.70mm; CV2 is more than or equal to 0.90mm and less than or equal to 1.10mm; CV3 is more than or equal to 0.03mm and less than or equal to 0.15mm; CV4 is more than or equal to 0.03mm and less than or equal to 0.30mm.
The vehicle-mounted optical system lens of the embodiment satisfies the following relation: CV1/CV2 is more than or equal to 2.0 and less than or equal to 2.8.
The vehicle-mounted optical system lens has the characteristics of large field of view, precision, ultra-thin, small temperature drift in high and low temperature environments, good imaging quality and the like, and is low in cost and extremely high in cost performance.
The present invention is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present invention.
Claims (4)
1. The utility model provides a on-vehicle optical system camera lens which characterized in that: the lens comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens and a fifth lens, wherein the first lens, the second lens, the third lens, the diaphragm, the fourth lens and the fifth lens are sequentially arranged from an object plane to an image plane along an optical axis, the first lens is a meniscus negative lens, the second lens is an aspheric meniscus negative lens, the third lens is a biconvex positive lens, the fourth lens is an aspheric negative lens, the fifth lens is an aspheric positive lens, and the fourth lens and the fifth lens are glued to form a glued lens;
the focal length (EFL) of the in-vehicle optical system lens satisfies the relation: the focal length (EFL) of the vehicle-mounted optical system lens is 1.27mm; the Back Focus (BFL) of the vehicle-mounted optical system lens satisfies the relation: back coke (BFL) of less than or equal to 1.50mm and less than or equal to 4.00mm;
the aperture value (F/NO) of the vehicle-mounted optical system lens is 2.0mm;
the refractive index of the first lens is Nd1, the refractive index of the second lens is Nd2, the refractive index of the third lens is Nd3, the refractive index of the fourth lens is Nd4, the refractive index of the fifth lens is Nd5, and the vehicle-mounted optical system lens satisfies the relation: nd1 is more than or equal to 1.78 and less than or equal to 1.88; nd2 is more than or equal to 1.48 and less than or equal to 1.58; nd3 is more than or equal to 1.72 and less than or equal to 1.85; nd4 is more than or equal to 1.52 and less than or equal to 1.62; nd5 is more than or equal to 1.48 and less than or equal to 1.58;
the distance between the first lens and the second lens is CV1, the distance between the second lens and the third lens is CV2, the distance between the third lens and the diaphragm is CV3, the distance between the diaphragm and the fourth lens is CV4, and the vehicle-mounted optical system lens satisfies the following relation: CV1 is more than or equal to 1.30mm and less than or equal to 1.70mm; CV2 is more than or equal to 0.90mm and less than or equal to 1.10mm; CV3 is more than or equal to 0.03mm and less than or equal to 0.15mm; CV4 is more than or equal to 0.03mm and less than or equal to 0.30mm.
2. The in-vehicle optical system lens according to claim 1, wherein: the first lens and the third lens are made of glass, and the second lens, the fourth lens and the fifth lens are made of plastic.
3. The in-vehicle optical system lens according to claim 1, wherein: the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, and the vehicle-mounted optical system lens satisfies the relation: -f 1 is less than or equal to 4.85mm and less than or equal to-3.95 mm; -f 2 is less than or equal to 3.10mm and less than or equal to-2.20 mm; f3 is more than or equal to 2.27mm and less than or equal to 3.15mm; -f 4 is less than or equal to 1.40mm and less than or equal to-1.00 mm; f5 is more than or equal to 1.05mm and less than or equal to 1.45mm.
4. The in-vehicle optical system lens according to claim 1, wherein: the vehicle-mounted optical system lens satisfies the following relation: CV1/CV2 is more than or equal to 2.0 and less than or equal to 2.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210840760.8A CN114994874B (en) | 2022-07-18 | 2022-07-18 | Vehicle-mounted optical system lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210840760.8A CN114994874B (en) | 2022-07-18 | 2022-07-18 | Vehicle-mounted optical system lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114994874A CN114994874A (en) | 2022-09-02 |
| CN114994874B true CN114994874B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210840760.8A Active CN114994874B (en) | 2022-07-18 | 2022-07-18 | Vehicle-mounted optical system lens |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102289052A (en) * | 2011-08-22 | 2011-12-21 | 宁波舜宇车载光学技术有限公司 | Ultra wide angle camera lens |
| CN102289053A (en) * | 2011-08-22 | 2011-12-21 | 宁波舜宇车载光学技术有限公司 | Wide-angle camera lens with aspherical cemented lens |
| CN109212714A (en) * | 2017-06-30 | 2019-01-15 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN112014962A (en) * | 2020-09-24 | 2020-12-01 | 协益电子（苏州）有限公司 | Vehicle-mounted optical lens with high resolution and large visual angle and automobile rearview mirror |
| CN114114643A (en) * | 2021-12-28 | 2022-03-01 | 协益电子（苏州）有限公司 | High definition car looks sideways at optical lens and imaging device |
| CN114200644A (en) * | 2021-11-29 | 2022-03-18 | 福建福光天瞳光学有限公司 | Vehicle-mounted optical lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3938143B2 (en) * | 2004-02-09 | 2007-06-27 | コニカミノルタオプト株式会社 | Super wide-angle optical system |
-
2022
- 2022-07-18 CN CN202210840760.8A patent/CN114994874B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102289052A (en) * | 2011-08-22 | 2011-12-21 | 宁波舜宇车载光学技术有限公司 | Ultra wide angle camera lens |
| CN102289053A (en) * | 2011-08-22 | 2011-12-21 | 宁波舜宇车载光学技术有限公司 | Wide-angle camera lens with aspherical cemented lens |
| CN109212714A (en) * | 2017-06-30 | 2019-01-15 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN112014962A (en) * | 2020-09-24 | 2020-12-01 | 协益电子（苏州）有限公司 | Vehicle-mounted optical lens with high resolution and large visual angle and automobile rearview mirror |
| CN114200644A (en) * | 2021-11-29 | 2022-03-18 | 福建福光天瞳光学有限公司 | Vehicle-mounted optical lens |
| CN114114643A (en) * | 2021-12-28 | 2022-03-01 | 协益电子（苏州）有限公司 | High definition car looks sideways at optical lens and imaging device |
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| CN114994874A (en) | 2022-09-02 |
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