CN107783257A - Big scene depth space radioresistance camera lens - Google Patents
Big scene depth space radioresistance camera lens Download PDFInfo
- Publication number
- CN107783257A CN107783257A CN201711013863.2A CN201711013863A CN107783257A CN 107783257 A CN107783257 A CN 107783257A CN 201711013863 A CN201711013863 A CN 201711013863A CN 107783257 A CN107783257 A CN 107783257A
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- CN
- China
- Prior art keywords
- lens
- positive lens
- group
- airspace
- radioresistance
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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
Abstract
The present invention relates to a kind of big scene depth space radioresistance camera lens, along light, incident direction is sequentially provided with preceding group of microscope group A, light bar B, rear group microscope group C from left to right in the optical system of the camera lens, group microscope group A is made up of negative lens A 1, positive lens A 2, negative lens A 3 successively from left to right before described, group microscope group C is made up of positive lens C 1, biconcave lens C 2, positive lens C 3, positive lens C 4 successively from left to right after described, simple in construction.
Description
Technical field
The present invention relates to a kind of big scene depth space radioresistance camera lens, it is related to the optical camera field of photoelectric video technology.
Background technology
Irradiation space environment includes：Electronics, proton and a small amount of high energy cosmic-ray particle.Flouride-resistani acid phesphatase technology typically has passively
Guard technology and active defense technology.Passive protection technology is to protect optical device with tantalum piece etc., to increase its capability of resistance to radiation, but
This will greatly increase load weight, and aircraft is quite harsh to the weight demands of load, because load weight increases 1kg, hair
The system of penetrating will increase by hundreds of kilograms, costly.With the development of space technology, for ensure aerospace craft functional reliability and
Long-life, so preferred will improve the capability of resistance to radiation of optical device in itself, this proposes higher requirement to radiation resistance.
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 scene depth space radioresistance mirror simple in construction
Head.
The technical scheme is that a kind of big scene depth space radioresistance camera lens, along light in the optical system of the camera lens
Incident direction is sequentially provided with preceding group of microscope group A, light bar B, rear group microscope group C to line from left to right, and microscope group A is organized before described from left to right successively
It is made up of negative lens A-1, positive lens A-2, negative lens A-3, microscope group C is organized after described from left to right successively by positive lens C-1, concave-concave
Lens C-2, positive lens C-3, positive lens C-4 compositions.
Further, the airspace between the preceding group microscope group A and light bar B is 1.36mm, the light bar B and rear group mirror
Airspace between group C is 0.47mm.
Further, the airspace between the negative lens A-1 and positive lens A-2 is 4.15mm；Positive lens A-2 and negative
Airspace between lens A-3 is 1.78mm.
Further, the airspace between the positive lens C-1 and biconcave lens C-2 is 2.53mm；Biconcave lens C-2
Airspace between positive lens C-3 is 0.27mm；Airspace between positive lens C-3 and positive lens C-4 is 0.09mm.
Further, the negative lens A-1, positive lens A-2, negative lens A-3, positive lens C-1 use radiation resistant glass
LAK9G15, BK7G18 are made.
Compared with prior art, the invention has the advantages that：（1）The structure of the big scene depth space radioresistance camera lens
Simply, compact, using 7 fully separating spheric glasses, total transmissivity formula optical texture, there is the larger angle of visual field, very well
Ground corrects various aberrations, in 0.2m to infinity scope good imaging quality, high resolution；（2）Capability of resistance to radiation is strong, anti-spoke
Penetrate dosage 1000Krad（Si）, possess and reliablely and stablely run in radiation environment for a long time；（3）Light-weight design, reduce system
Volume and weight；（4）By being combined from rational glass material, realize the optics of system without thermalized design, -40 DEG C~
MTF and disc of confusion size significantly decline with not occurring under normal temperature state in+60 DEG C of temperature ranges, meet the big temperature difference environment in space
Under requirement.
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 is the distortion figure of the embodiment of the present invention.
Fig. 3 is that the MTF that object distance of the embodiment of the present invention is infinity schemes；
Fig. 4 is that the MTF that object distance of the embodiment of the present invention is 0.2m schemes；
Fig. 5 is the mechanical structure schematic diagram of the embodiment of the present invention.
In figure：
Microscope group C, A-1 negative lens A-1, A-2 positive lens A-2, A-3 negative lens A-3, C- are organized after microscope group A, B- light bar B, C- are organized before A-
1 positive lens C-1, C-2 biconcave lens C-2, C-3 positive lens C-3, C-4 positive lens C-4,1- body tube, 2-A piece trim rings, 3-AB every
Circle, 4-BC spacer rings, 5-G piece trim rings, 6-DE spacer rings, 7-EF spacer rings, 8-FG spacer rings.
Embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Fig. 1~5, a kind of big scene depth space radioresistance camera lens, along light from a left side in the optical system of the camera lens
Incident direction is sequentially provided with preceding group of microscope group A, light bar B, rear group microscope group C to the right, and microscope group A is organized before described from left to right successively by negative saturating
Mirror A-1, positive lens A-2, negative lens A-3 compositions, microscope group C is organized after described from left to right successively by positive lens C-1, biconcave lens C-
2nd, positive lens C-3, positive lens C-4 are formed.
In the present embodiment, the airspace between the preceding group microscope group A and light bar B is 1.36mm, and the light bar B is with after
Airspace between group microscope group C is 0.47mm.
In the present embodiment, the airspace between the negative lens A-1 and positive lens A-2 is 4.15mm；Positive lens A-2
Airspace between negative lens A-3 is 1.78mm.
In the present embodiment, the airspace between the positive lens C-1 and biconcave lens C-2 is 2.53mm；Concave-concave is saturating
Airspace between mirror C-2 and positive lens C-3 is 0.27mm；Airspace between positive lens C-3 and positive lens C-4 is
0.09mm。
In the present embodiment, the negative lens A-1, positive lens A-2, negative lens A-3, positive lens C-1 use radiation hardness
Glass LAK9G15, BK7G18 are made, and can greatly reduce the radiation of space high-energy ray, particle to optical mirror slip and rear end
The damage of imaging sensor, extend the service life of whole system.
In the present embodiment, the optical system being made up of above-mentioned lens set has reached following optical index：
Focal length：f′=3.9mm；
The angle of visual field：60°×45°；
Blur-free imaging scope：The infinity of 0.2m~7；
Spectral region：450nm~700nm；
6 μm of 6 μ m of pixel dimension；
Weight：≤20g；
In the present embodiment, the parameter of each eyeglass is as shown in the table：
In the present embodiment, the negative lens A-1, positive lens A-2, negative lens A-3 are set in sequence in the front end of body tube 1 successively
And compressed with A pieces trim ring 2, AB spacer rings 3 are provided between the negative lens A-1 and positive lens A-2, the positive lens A-2 is saturating with bearing
BC spacer rings 4 are provided between mirror A-3；The positive lens C-1, biconcave lens C-2, positive lens C-3, positive lens C-4 are sequentially set successively
Put in primary mirror tube rear end and compressed with G pieces trim ring 5, DE spacer rings 6 are provided between the positive lens C-1 and biconcave lens C-2,
EF spacer rings 7 are provided between the biconcave lens C-2 and positive lens C-3, are set between the positive lens C-3 and positive lens C-4
There are FG spacer rings 8.
In the present embodiment, group microscope group A, light bar B, rear group microscope group C are imaged before light order enters.
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 (5)
- A kind of 1. big scene depth space radioresistance camera lens, it is characterised in that：In the optical system of the camera lens along light from left to right Incident direction is sequentially provided with preceding group of microscope group A, light bar B, rear group microscope group C, and microscope group A is organized before described from left to right successively by negative lens A- 1st, positive lens A-2, negative lens A-3 are formed, it is described after group microscope group C from left to right successively by positive lens C-1, biconcave lens C-2, just Lens C-3, positive lens C-4 are formed.
- 2. big scene depth space radioresistance camera lens according to claim 1, it is characterised in that：Group microscope group A and light bar B before described Between airspace be 1.36mm, the airspace between the light bar B and rear group microscope group C is 0.47mm.
- 3. big scene depth space radioresistance camera lens according to claim 1, it is characterised in that：The negative lens A-1 and just saturating Airspace between mirror A-2 is 4.15mm；Airspace between positive lens A-2 and negative lens A-3 is 1.78mm.
- 4. big scene depth space radioresistance camera lens according to claim 1, it is characterised in that：The positive lens C-1 and concave-concave Airspace between lens C-2 is 2.53mm；Airspace between biconcave lens C-2 and positive lens C-3 is 0.27mm；Just Airspace between lens C-3 and positive lens C-4 is 0.09mm.
- 5. big scene depth space radioresistance camera lens according to claim 1, it is characterised in that：The negative lens A-1, positive lens A-2, negative lens A-3, positive lens C-1 are made of radiation resistant glass LAK9G15, BK7G18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711013863.2A CN107783257B (en) | 2017-10-26 | 2017-10-26 | Large depth-of-field space radiation-resistant lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711013863.2A CN107783257B (en) | 2017-10-26 | 2017-10-26 | Large depth-of-field space radiation-resistant lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107783257A true CN107783257A (en) | 2018-03-09 |
| CN107783257B CN107783257B (en) | 2019-12-24 |
Family
ID=61435341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711013863.2A Active CN107783257B (en) | 2017-10-26 | 2017-10-26 | Large depth-of-field space radiation-resistant lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107783257B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666684A (en) * | 2020-12-23 | 2021-04-16 | 福建福光股份有限公司 | Radiation-resistant wide-angle lens |
| CN114153049A (en) * | 2021-12-06 | 2022-03-08 | 杭州径上科技有限公司 | Fixed-focus radiation-proof lens |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303088A (en) * | 1991-10-23 | 1994-04-12 | Canon Kabushiki Kaisha | Retrofocus type lens |
| US5668669A (en) * | 1991-11-13 | 1997-09-16 | Nikon Corporation | Compact wide-angle objective lens |
| JP2012252253A (en) * | 2011-06-06 | 2012-12-20 | Canon Inc | Zoom lens and imaging device with the same |
| CN106291882A (en) * | 2016-09-06 | 2017-01-04 | 浙江舜宇光学有限公司 | Pick-up lens |
| CN206515544U (en) * | 2016-12-27 | 2017-09-22 | 东莞市宇瞳光学科技股份有限公司 | Small-sized super large aperture tight shot |
-
2017
- 2017-10-26 CN CN201711013863.2A patent/CN107783257B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303088A (en) * | 1991-10-23 | 1994-04-12 | Canon Kabushiki Kaisha | Retrofocus type lens |
| US5668669A (en) * | 1991-11-13 | 1997-09-16 | Nikon Corporation | Compact wide-angle objective lens |
| JP2012252253A (en) * | 2011-06-06 | 2012-12-20 | Canon Inc | Zoom lens and imaging device with the same |
| CN106291882A (en) * | 2016-09-06 | 2017-01-04 | 浙江舜宇光学有限公司 | Pick-up lens |
| CN206515544U (en) * | 2016-12-27 | 2017-09-22 | 东莞市宇瞳光学科技股份有限公司 | Small-sized super large aperture tight shot |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666684A (en) * | 2020-12-23 | 2021-04-16 | 福建福光股份有限公司 | Radiation-resistant wide-angle lens |
| CN112666684B (en) * | 2020-12-23 | 2023-01-31 | 福建福光股份有限公司 | Radiation-resistant wide-angle lens |
| CN114153049A (en) * | 2021-12-06 | 2022-03-08 | 杭州径上科技有限公司 | Fixed-focus radiation-proof lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107783257B (en) | 2019-12-24 |
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