CN106249384A - A kind of super economical 3.6mm aspheric surface day and night confocal optical system - Google Patents
A kind of super economical 3.6mm aspheric surface day and night confocal optical system Download PDFInfo
- Publication number
- CN106249384A CN106249384A CN201610759654.1A CN201610759654A CN106249384A CN 106249384 A CN106249384 A CN 106249384A CN 201610759654 A CN201610759654 A CN 201610759654A CN 106249384 A CN106249384 A CN 106249384A
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- China
- Prior art keywords
- aspheric surface
- optical system
- lens
- day
- confocal optical
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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
- G02B13/004—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 four lenses
Abstract
The present invention relates to a kind of super economical 3.6mm aspheric surface day and night confocal optical system, described optical system includes along input path the most spaced concavees lens A1, biconvex lens A2, diaphragm D, aspheric surface B1 and aspheric surface B2；The focal power that wherein concavees lens A1 and biconvex lens A2 is constituted is front group of negative camera lens, and the focal power that aspheric surface B1 and aspheric surface B2 are constituted is rear group of positive camera lens.The beneficial effects of the present invention is: realize high-resolution, Low Drift Temperature, the most confocal, can be adaptive with 1080pCCD or CMOS.
Description
Technical field
The present invention relates to safety-security area, particularly relate to a kind of super economical 3.6mm aspheric surface day and night confocal optical system.
Background technology
Existing have various 3.6mm short focusing wide angle camera lens to be applied in safety-protection system on the market, but, due to very
Multi-product, in cost control, uses few lens design so that imaging results is not fully up to expectations.Therefore use more glass mirror now
Sheet reaches the picture element of more high definition, the most therefore considerably increases product cost, causes product promotion difficulty to promote.At present, in peace
In anti-industry, rarely have low cost truly, high picture element, Low Drift Temperature tight shot.
Summary of the invention
It is an object of the invention to for above weak point, it is provided that a kind of super economical 3.6mm aspheric surface is the most confocal
Optical system, has high-resolution, Low Drift Temperature, the most confocal feature.
The present invention solves the scheme that technical problem used: a kind of super economical 3.6mm aspheric surface day and night confocal optics
System, described optical system includes along input path the most spaced concavees lens A1, biconvex lens A2, diaphragm
D, aspheric surface B1 and aspheric surface B2；The focal power that wherein concavees lens A1 and biconvex lens A2 is constituted is front group of negative camera lens, aspheric
The focal power that face B1 and aspheric surface B2 are constituted is rear group of positive camera lens.
Further, the focal length of optical system is set as f, concavees lens A-1, biconvex lens A-2, aspheric surface B1 and aspheric
Face B2 is respectively f1, f2, f3 and f4, wherein f1, f2, f3 and f4 and f meet following ratio :-2mm <<-0.5mm；1.5mm<<3mm；0.5mm<<1.3mm；-1.5mm<<-1mm。
Further, described f3 and f4 meets: 0.5mm <<1.2mm。
Further, an optical filter C it is additionally provided with on rear side of described aspheric surface B2.
Compared with prior art, the present invention has a following beneficial effect: by rear group of two panels separation aspheric surface correct spherical aberration and
Aberration, two panels aspheric surface air-gap compensates senior aberration, and each aspheric surface of reasonable computation makes focus under high temperature and low temperature environment
Without skew, and reach the effect of day and night parfocalization.Realize high-definition camera level with ultralow cost, Gao Pin can be reached the most by day
While matter pixel, at insufficient light or in the case of night, it may have high definition picture element, the adverse circumstances in different temperatures remain unchanged
Perfect picture can be become.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings patent of the present invention is further illustrated.
Fig. 1 is the light channel structure schematic diagram of the optical system of the embodiment of the present invention.
In figure, A1 is concavees lens, and A2 is biconvex lens, B1 and B2 is aspheric surface.
Detailed description of the invention
The present invention is further described with detailed description of the invention below in conjunction with the accompanying drawings.
As it is shown in figure 1, the super economical 3.6mm aspheric surface day and night confocal optical system of the one of the present embodiment, described optics
System include along input path the most spaced concavees lens A1, biconvex lens A2, diaphragm D, aspheric surface B1 and
Aspheric surface B2；The focal power that wherein concavees lens A1 and biconvex lens A2 is constituted is front group of negative camera lens, aspheric surface B1 and aspheric surface
The focal power that B2 is constituted is rear group of positive camera lens.
From the foregoing, the beneficial effects of the present invention is: the front group of eyeglass of the present invention is by bearing concavees lens A1, and biconvex is the most saturating
Mirror A2 is combined into group before negative power, and rear group eyeglass is formed group after positive light coke by two panels aspheric surface.Front group of negative power corrects 3
Rank aberration and 5 rank spherical aberrations, rear group two panels aspheric surface corrects all senior aberration.Whole camera lens ensures that camera lens refractive index and light are burnt
Degree approximate ratio distribution, it is ensured that front and back organize the harmony of the angle of incidence size of eyeglass, to reduce the sensitivity of camera lens, improves and produces
Probability.By reasonable distribution each eyeglass focal length, make imaging system spherical aberration and the curvature of field the least, it is ensured that axle center and off-axis visual field
Picture element.The optical system consisted of above eyeglass, light path overall length is shorter, then the volume of camera lens is little；Rear Jiao is big, can multiple connect
Mouthful video camera with the use of.Wherein aspheric surface B1 and aspheric surface B2 are two panels plastic aspherical element, and picture element is good, low cost；Front group
Eyeglass negative power, rear group eyeglass positive light coke, it is ensured that still can normally use at high and low temperature environment.
In the present embodiment, the focal length of optical system is set as f, concavees lens A1, biconvex lens A2, aspheric surface B1 and non-
Sphere B2 is respectively f1, f2, f3 and f4, wherein f1, f2, f3 and f4 and f meet following ratio :-2mm <<-0.5mm；
1.5mm<<3mm；0.5mm<<1.3mm；-1.5mm<<-1mm.By to the focal power of camera lens according to above ratio
Carrying out reasonable distribution, each eyeglass is proportional relative to system focal f, make camera lens 480～850nm the picture of wave-length coverage
Difference is reasonably corrected and is balanced.
In the present embodiment, described f3 and f4 meets: 0.5mm <<1.2mm.For making camera lens can be at high temperature and low
Temperature blur-free imaging, making temperature drift is zero, under severe temperature conditions can high definition imaging, without out of focus, organize afterwards two panels aspheric surface focal length
Focal power ratio must is fulfilled for conditions above.
In the present embodiment, an optical filter C it is additionally provided with on rear side of described aspheric surface B2.
The technical specification of the optical system that the present embodiment provides is as follows:
Focal length: f=3.6mm；
Relative aperture F=2.2；
The angle of visual field: 2w >=120 ° (image space is as visual field 2 η ' >=Ф 6.6mm)；
Distortion: ＜-15%；
Resolution: can be adaptive with 2,000,000 pixel high-resolution CCD or cmos camera；
Light path overall length ∑≤22mm, optics rear cut-off distance L ' >=5mm；
It is suitable for spectral line scope: 480nm～850nm.
In sum, the super economical 3.6mm aspheric surface day and night confocal optical system of one that the present invention provides, structure letter
Single, under volume, realize high-definition camera level with ultralow cost, the adverse circumstances in different temperatures still can become perfect picture.
The object, technical solutions and advantages of the present invention are further described by above-listed preferred embodiment, are answered
It is understood by, the foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (4)
1. a super economical 3.6mm aspheric surface day and night confocal optical system, it is characterised in that described optical system includes along entering
Penetrate light path the most spaced concavees lens A1, biconvex lens A2, diaphragm D, aspheric surface B1 and aspheric surface B2；Wherein
The focal power that concavees lens A1 and biconvex lens A2 is constituted is front group of negative camera lens, the focal power that aspheric surface B1 and aspheric surface B2 are constituted
For rear group of positive camera lens.
The super economical 3.6mm aspheric surface day and night confocal optical system of one the most according to claim 1, it is characterised in that
Set the focal length of optical system as f, concavees lens A1, biconvex lens A2, aspheric surface B1 and aspheric surface B2 be respectively f1, f2, f3 and
F4, wherein f1, f2, f3 and f4 and f meet following ratio :-2mm <<-0.5mm；1.5mm<<3mm；0.5mm<<
1.3mm；-1.5mm<<-1mm。
The super economical 3.6mm aspheric surface day and night confocal optical system of one the most according to claim 2, it is characterised in that
Described f3 and f4 meets: 0.5mm <<1.2mm。
The super economical 3.6mm aspheric surface day and night confocal optical system of one the most according to claim 1, it is characterised in that
An optical filter C it is additionally provided with on rear side of described aspheric surface B2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759654.1A CN106249384A (en) | 2016-08-30 | 2016-08-30 | A kind of super economical 3.6mm aspheric surface day and night confocal optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759654.1A CN106249384A (en) | 2016-08-30 | 2016-08-30 | A kind of super economical 3.6mm aspheric surface day and night confocal optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106249384A true CN106249384A (en) | 2016-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610759654.1A Pending CN106249384A (en) | 2016-08-30 | 2016-08-30 | A kind of super economical 3.6mm aspheric surface day and night confocal optical system |
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| CN (1) | CN106249384A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445602A (en) * | 2018-01-17 | 2018-08-24 | 江苏大学 | A kind of confocal optical system for measuring bloomed lens center thickness |
| CN108983398A (en) * | 2018-09-07 | 2018-12-11 | 福建福光股份有限公司 | A kind of economical 6mm aspheric optical system |
| CN109946816A (en) * | 2019-04-18 | 2019-06-28 | 福建福光天瞳光学有限公司 | Microminiature near-infrared aspheric optical system and imaging method |
| CN110703417A (en) * | 2019-11-13 | 2020-01-17 | 福建福光股份有限公司 | All-plastic aspheric day and night confocal optical system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028779A1 (en) * | 1997-12-01 | 1999-06-10 | Intel Corporation | Compact digital camera objective with interdigitated element alignment, stray light suppression, and anti-aliasing features |
| JP2005148435A (en) * | 2003-11-17 | 2005-06-09 | Fuji Photo Film Co Ltd | Zoom lens |
| US20070047103A1 (en) * | 2005-08-26 | 2007-03-01 | Canon Kabushiki Kaisha | Zoom lens and image pickup apparatus including the same |
| KR101089326B1 (en) * | 2009-10-20 | 2011-12-02 | 주식회사 나오텍 | Optical system for wide angle camera |
| CN103513400A (en) * | 2013-08-29 | 2014-01-15 | 利达光电股份有限公司 | Wide-angle high-resolution pick-up lens |
| CN104834077A (en) * | 2015-05-28 | 2015-08-12 | 中山市弘景光电科技有限公司 | Image pickup lens for image pickup device |
| CN104849838A (en) * | 2015-06-06 | 2015-08-19 | 中山市弘景光电科技有限公司 | High-pixel intelligent shooting optical system and lens applying same |
| CN105259644A (en) * | 2015-11-04 | 2016-01-20 | 福建福光股份有限公司 | Day and night ultra-wide angle lens with fixed focus of 2.3mm |
| TW201616172A (en) * | 2014-10-27 | 2016-05-01 | 信泰光學（深圳）有限公司 | Lens assembly |
-
2016
- 2016-08-30 CN CN201610759654.1A patent/CN106249384A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028779A1 (en) * | 1997-12-01 | 1999-06-10 | Intel Corporation | Compact digital camera objective with interdigitated element alignment, stray light suppression, and anti-aliasing features |
| JP2005148435A (en) * | 2003-11-17 | 2005-06-09 | Fuji Photo Film Co Ltd | Zoom lens |
| US20070047103A1 (en) * | 2005-08-26 | 2007-03-01 | Canon Kabushiki Kaisha | Zoom lens and image pickup apparatus including the same |
| KR101089326B1 (en) * | 2009-10-20 | 2011-12-02 | 주식회사 나오텍 | Optical system for wide angle camera |
| CN103513400A (en) * | 2013-08-29 | 2014-01-15 | 利达光电股份有限公司 | Wide-angle high-resolution pick-up lens |
| TW201616172A (en) * | 2014-10-27 | 2016-05-01 | 信泰光學（深圳）有限公司 | Lens assembly |
| CN104834077A (en) * | 2015-05-28 | 2015-08-12 | 中山市弘景光电科技有限公司 | Image pickup lens for image pickup device |
| CN104849838A (en) * | 2015-06-06 | 2015-08-19 | 中山市弘景光电科技有限公司 | High-pixel intelligent shooting optical system and lens applying same |
| CN105259644A (en) * | 2015-11-04 | 2016-01-20 | 福建福光股份有限公司 | Day and night ultra-wide angle lens with fixed focus of 2.3mm |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445602A (en) * | 2018-01-17 | 2018-08-24 | 江苏大学 | A kind of confocal optical system for measuring bloomed lens center thickness |
| CN108983398A (en) * | 2018-09-07 | 2018-12-11 | 福建福光股份有限公司 | A kind of economical 6mm aspheric optical system |
| CN108983398B (en) * | 2018-09-07 | 2021-02-26 | 福建福光股份有限公司 | Economical 6mm aspheric surface optical system |
| CN109946816A (en) * | 2019-04-18 | 2019-06-28 | 福建福光天瞳光学有限公司 | Microminiature near-infrared aspheric optical system and imaging method |
| CN109946816B (en) * | 2019-04-18 | 2023-12-08 | 福建福光天瞳光学有限公司 | Ultra-small near-infrared aspheric optical system and imaging method |
| CN110703417A (en) * | 2019-11-13 | 2020-01-17 | 福建福光股份有限公司 | All-plastic aspheric day and night confocal optical system |
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Application publication date: 20161221 |