CN105467561B - A kind of big thang-kng high-definition fixed-focus camera lens of big wide-angle - Google Patents
A kind of big thang-kng high-definition fixed-focus camera lens of big wide-angle Download PDFInfo
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- CN105467561B CN105467561B CN201510985135.2A CN201510985135A CN105467561B CN 105467561 B CN105467561 B CN 105467561B CN 201510985135 A CN201510985135 A CN 201510985135A CN 105467561 B CN105467561 B CN 105467561B
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- 238000004026 adhesive bonding Methods 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 239000003292 glue Substances 0.000 claims 1
- 230000000007 visual effect Effects 0.000 description 4
- 230000004438 eyesight Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010226 confocal imaging Methods 0.000 description 1
- 239000005331 crown glasses (windows) Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000005308 flint glass Substances 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002371 ultraviolet--visible spectrum Methods 0.000 description 1
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
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
- G02B13/146—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation with corrections for use in multiple wavelength bands, such as infrared and visible light, e.g. FLIR systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Lenses (AREA)
Abstract
The present invention relates to a kind of big big thang-kng high-definition fixed-focus camera lens of wide-angle, in the optical system of the camera lens along light from left to right incident direction be sequentially provided with organize A and lens set before lens set after organize B, being provided with diaphragm C, the preceding group A before described between group A and rear group B includes negative selenodont lens A 1, biconcave lens A 2, the biconvex lens A 3 set gradually from left to right；Group B includes positive selenodont lens B 1, the biconvex lens B 2 set gradually from left to right and negative selenodont lens B 3 contiguity gluing unit, biconvex lens B 4 after described.The big big thang-kng high-definition fixed-focus camera lens of wide-angle uses seven Combined-type sheet-types, has the advantages that big wide-angle, big thang-kng, high-resolution, day and night, can be adapted to the CCD or CMOS of 3,000,000 pixel high-resolutions.
Description
Technical field
The present invention relates to a kind of big big thang-kng high-definition fixed-focus camera lens of wide-angle.
Background technology
Web camera is born in the mid-90 in last century, main composition part of the camera lens as video camera, its property
Image quality can be directly affects.Early stage in the market has various tight shots to be applied in safety-protection system, but due to
The optical mirror slip of many products is more, adds assembling adjustment difficulty, and spectrophotometric data is relatively low, most of to belong to low side production
Product, can only be adapted to the common camera compared with low pixel, and be difficult to realize big wide-angle, big thang-kng, high-resolution, day and night parfocalization etc. is excellent
Point.
The content of the invention
The purpose of the present invention is to be directed to above weak point, there is provided a kind of big big thang-kng high-definition fixed-focus camera lens of wide-angle.
The technical scheme is that a kind of big thang-kng high-definition fixed-focus camera lens of big wide-angle, in the optical system of the camera lens
Along light from left to right incident direction be sequentially provided with before lens set organize A and lens set after organize B, set before described between group A and rear group B
Diaphragm C is equipped with, negative selenodont lens A-1, biconcave lens A-2, biconvex lens that A includes setting gradually from left to right are organized before described
A-3；Group B includes positive selenodont lens B-1, biconvex lens B-2 and the negative selenodont lens set gradually from left to right after described
The gluing unit of B-3 contiguity, biconvex lens B-4.
Further, the airspace between the preceding group A and rear group B is 3.5mm.
Further, the airspace between the negative selenodont lens A-1 and biconcave lens A-2 is 2.2mm, described double
The air gap between concavees lens A-2 and biconvex lens A-3 is 0.7mm, the positive selenodont lens B-1 and biconvex lens B-2
The air gap between the gluing unit of negative selenodont lens B-3 contiguity is 0.2mm, the biconvex lens B-2 and negative selenodont
The air gap between the gluing unit and convex lens B-4 of lens B-3 contiguity is 0.1mm.
Compared with prior art, the invention has the advantages that：The camera lens is reasonably assigned with focal power, well
Optimizing off-axis aberration on axle so that the relative aperture of camera lens does more, particularly low according under environment, as matter is still excellent,
While daytime can reach high-quality pixel, it in insufficient light or can also reach identical as matter in the case of night, realize mirror
The day and night parfocalization function of head；Carry out achromatism from flint glass and the crown glass compared with low-refraction of high refraction, low dispersion；This
Invention reasonable balance focal power, does relative aperture greatly；The present invention reduces tolerance sensitivity as a result of rational structure
Degree, also just reduces production cost；The present invention, which uses, does not wait heavy sheet glass to be compensated to infrared so that infrared image matter significantly carries
It is high.
Brief description of the drawings
Patent of the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the optical system diagram of the embodiment of the present invention；
Fig. 2 causes visible ray central vision as the MTF under matter optimal cases to focus on；
Fig. 3 is that night vision MTF corresponding to Fig. 2 schemes；
In figure：
A is organized before A-；B is organized after B-；C- diaphragms C；A-1 bears selenodont lens A-1；A-2 biconcave lens A-2；A-3 biconvex lens
A-3；The positive selenodont lens B-1 of B-1；B-2 biconvex lens B-2；B-3 bears selenodont lens B-3；B-4 biconvex lens B-4.
Embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 3, the big thang-kng high-definition fixed-focus camera lens of a kind of big wide-angle, along light in the optical system of the camera lens
Incident direction is sequentially provided with before lens set from left to right organize A and lens set after organize B, be provided with light between group A and rear group B before described
Late C, negative selenodont lens A-1, biconcave lens A-2, biconvex lens A-3 that A includes setting gradually from left to right are organized before described；Institute
State positive selenodont lens B-1, biconvex lens B-2 and negative selenodont lens B-3 contiguity that rear group of B includes setting gradually from left to right
Gluing unit, biconvex lens B-4.
In the present embodiment, the airspace between the preceding group A and rear group B is 3.5mm.
In the present embodiment, the airspace between the negative selenodont lens A-1 and biconcave lens A-2 is 2.2mm, institute
It is 0.7mm to state the air gap between biconcave lens A-2 and biconvex lens A-3, the positive selenodont lens B-1 and biconvex lens
The air gap between the gluing unit of B-2 and negative selenodont lens B-3 contiguity is 0.2mm, the biconvex lens B-2 and negative crescent moon
The air gap between the gluing unit and convex lens B-4 of type lens B-3 contiguity is 0.1mm.
In the present embodiment, the optical system being made up of above-mentioned lens set has reached following optical index：
1) focal length：f′=2.8mm；
2) relative aperture F=1.4；
3) angle of visual field：2w≥137°（Image space is as the η ' of visual field 2 >=Ф 6.6mm）；
4) distort：＜ 50%；
5) resolution ratio：It can be adapted to 3,000,000 pixel high-resolution CCD or cmos camera；
6) total length of light path ∑≤23mm, optics rear cut-off distance L ' >=5.5mm；
7) it is applicable spectral line scope：480~850nm；
In the present embodiment, it was found from Fig. 2 and Fig. 3, it is seen that the distance of light and infrared light lens back focal plane differs very
It is small, the imaging requirements of high quality can be met in same image planes.During visual light imaging, the line of central vision 120 is more than 0.53 to place,
The line of peripheral field 120 is more than 0.36 to place；During infrared 0.85 mum wavelength imaging, the line of central vision 120 is more than 0.33 to place, edge
The line of visual field 120 is more than 0.3 to place.The effect of visible ray and infrared imaging is almost consistent, meets day and night confocal imaging requirements.
The object, technical solutions and advantages of the present invention are further described by above-listed preferred embodiment, are answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (1)
- A kind of 1. big thang-kng high-definition fixed-focus camera lens of big wide-angle, it is characterised in that：Along light from a left side in the optical system of the camera lens Incident direction is sequentially provided with before lens set to the right organize A and lens set after organize B, be provided with diaphragm C between group A and rear group B before described, Group A includes negative selenodont lens A-1, biconcave lens A-2, the biconvex lens A-3 set gradually from left to right before described；After described Group B includes positive selenodont lens B-1, the biconvex lens B-2 set gradually from left to right and the glue of negative selenodont lens B-3 contiguity Charge-coupled, biconvex lens B-4；Airspace before described between group A and rear group B is 3.5mm；The negative selenodont lens A-1 with Airspace between biconcave lens A-2 is 2.2mm, and the air gap between the biconcave lens A-2 and biconvex lens A-3 is 0.7mm, the air between the gluing unit of the positive selenodont lens B-1 and biconvex lens B-2 and negative selenodont lens B-3 contiguity Gap is 0.2mm, the sky between the gluing unit and biconvex lens B-4 of the biconvex lens B-2 and negative selenodont lens B-3 contiguity Gas gap is 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985135.2A CN105467561B (en) | 2015-12-25 | 2015-12-25 | A kind of big thang-kng high-definition fixed-focus camera lens of big wide-angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985135.2A CN105467561B (en) | 2015-12-25 | 2015-12-25 | A kind of big thang-kng high-definition fixed-focus camera lens of big wide-angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105467561A CN105467561A (en) | 2016-04-06 |
| CN105467561B true CN105467561B (en) | 2017-11-21 |
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| CN201510985135.2A Active CN105467561B (en) | 2015-12-25 | 2015-12-25 | A kind of big thang-kng high-definition fixed-focus camera lens of big wide-angle |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106371195A (en) * | 2016-11-23 | 2017-02-01 | 福建福光股份有限公司 | Large-wide-angle, high-light-flux and high-definition prime lens |
| CN112747819A (en) * | 2020-12-22 | 2021-05-04 | 中国航天科工集团八五一一研究所 | Large-view-field imaging solar blind ultraviolet detection system and implementation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008134494A (en) * | 2006-11-29 | 2008-06-12 | Topcon Corp | Super wide angle optical system and imaging lens device |
| JP2008242392A (en) * | 2007-03-29 | 2008-10-09 | Canon Inc | Zoom lens and imaging apparatus with the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007164079A (en) * | 2005-12-16 | 2007-06-28 | Elmo Co Ltd | Fisheye lens unit |
| JP5339784B2 (en) * | 2008-06-03 | 2013-11-13 | キヤノン株式会社 | Zoom lens and imaging apparatus having the same |
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- 2015-12-25 CN CN201510985135.2A patent/CN105467561B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008134494A (en) * | 2006-11-29 | 2008-06-12 | Topcon Corp | Super wide angle optical system and imaging lens device |
| JP2008242392A (en) * | 2007-03-29 | 2008-10-09 | Canon Inc | Zoom lens and imaging apparatus with the same |
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| Publication number | Publication date |
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| CN105467561A (en) | 2016-04-06 |
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