CN102238858A - Miniature low-cost radiation-proof camera capable of being used in nuclear radiation environment - Google Patents
Miniature low-cost radiation-proof camera capable of being used in nuclear radiation environment Download PDFInfo
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- CN102238858A CN102238858A CN2010101597168A CN201010159716A CN102238858A CN 102238858 A CN102238858 A CN 102238858A CN 2010101597168 A CN2010101597168 A CN 2010101597168A CN 201010159716 A CN201010159716 A CN 201010159716A CN 102238858 A CN102238858 A CN 102238858A
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Abstract
The invention belongs to the field of special equipment used in nuclear radiation environment, in particular to a miniature radiation-proof camera, comprising a common video camera, a reflecting mirror, a camera case and a camera radiation-proof case. The principles that a gamma ray can not be reflected by a mirror and a visible light can be reflected by the mirror are utilized, the visible light can be separated by the gamma ray by virtue of the reflecting mirror, the visible light enters into a camera for imaging, and the gamma ray can not enter into the camera and an imaging sensor can not be damaged. The traditional method that a radiation-proof camera blocks the ray by virtue of lead glass is changed, influence of the lead glass to imaging quality is avoided, and better radiation-proof performance can be achieved.
Description
Affiliated technical field
What the present invention relates to is a kind of device of instrument field, is exactly specifically to be used for the middle-size and small-size chemoprevention radiation image pickup of nuclear industry radiation environment head.
Background technology
May exist the different radiation of dosage in the nuclear industry environment, and the radiation meeting produces damage fast to shooting imager stone heart transducer CCD or CMOS.Handle so the camera that uses in radiation environment all needs to carry out special radiation proof, traditional method is the high specific gravity metal material in the camera lens outer wrap, such as stainless steel, tungsten alloy or lead alloy come radiation-screening.On optical axis, place flint glass and shield the ray of injecting together with visible light.But because lead glass can not intercept common rays such as gamma ray fully, camera just damages time dilation, and blocked up flint glass can stop most of visible light, and image quality is descended.So need the novel radiation proof camera that a volume of development is small and exquisite, weight is light, image quality is good.
Summary of the invention
The purpose of patent of the present invention is to provide a kind of miniaturization low cost radiation resistant camera scheme based on the optical reflection principle.
The purpose of patent of the present invention is achieved through the following technical solutions:
In radiation environment, except visible light, a variety of radiation rays are arranged, such as gamma ray, and these rays can produce very big infringement to semiconductors such as camera core sensor CCD and CMOS, make the quick actual effect of camera.And in radiation environment, knowing of video information is even more important, so need development radiation proof camera.
In the traditional scheme, realize by metallic shield and flint glass for the protection of radiation.Flint glass is to have realized ray stopping to a certain extent by add lead element in glass manufacturing process.But it is green that flint glass is, and can influence the quality of imaging to a certain extent, and lead glass can only the part radiation-inhibiting, the inefficacy that has just slowed down camera, and cost is higher.
Various radiation rays all are the high-energy radiations that produces by the atomic energy level transition, and wavelength is very short, all has the higher penetrating ability.With the gamma ray is example, when running into nonmetallic materials or thin metal, can directly penetrate object, but can't change round as visible light is reflected when running into mirror surface.Utilize the different of visible light and this physical property of radiation ray, can ray and visible light be propagated route by speculum and separate.
Visible light is reflected by speculum and enters the camera imaging, propagates along former route and ray directly passes speculum.And the ray of directive camera is intercepted fully by the outside metal material that covers of camera, can not produce infringement to camera.Because need not carrying out shielding processing on the light path, ordinary optical glass can be installed according to actual light path needs by the lens collar place, does not influence image quality.
The camera overall volume is less, and can change outside shielding material according to actual needs, adapts to the needs of Different Irradiation Environment.Complete machine is easy to maintenance, cleans easily, and is with low cost.
Description of drawings
Fig. 1 is a small-sized radiation proof camera structure schematic diagram of the present invention.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
The present invention is the small-sized radiation proof camera of the little use of a kind of nuclear radiation condition, comprises ordinary video camera 1, speculum 2, camera installation shell 3, radiation protective casing 4, lens collar 5.Wherein ordinary video camera 1 is installed within the camera installation shell 3.Ordinary video camera 1 optical axis and actual imaging optical axis are an angle of 90 degrees, and extraneous light enters camera by lens collar 5, change light path and enter ordinary video camera 1 after speculum 2 reflections.Radiation protective casing 4 is installed in camera and installs outside the shell 3, wraps up ordinary video camera 1 fully, places ray it is damaged.
The content that is not described in detail in the specification of the present invention belongs to this area professional and technical personnel's known prior art.
Claims (5)
1. a miniaturization low cost radiation resistant camera that can be used under the nuclear radiation environment is characterized in that: comprise ordinary video camera 1, speculum 2, camera installation shell 3, radiation protective casing 4 and 5 five chief components of lens collar.Ordinary video camera 1 is installed in the shell 3, and speculum 2 is installed in the shell 3, and its minute surface and camera optical axis center are 135 degree and install; Radiation protective casing 4 is installed in camera and installs outside the shell 3, parcel ordinary video camera 1; Lens collar 5 is installed in camera shell 3 tops is installed.
2. small-sized radiation proof camera according to claim 1 is characterized in that camera 1 is installed in the shell 3, and optical axis and actual observation direction are an angle of 90 degrees.
3. small-sized radiation proof camera according to claim 1 is characterized in that extraneous light enters ordinary video camera 1 by reflective mirror 2 reflections.
4. small-sized radiation proof camera according to claim 1 is characterized in that on its lens collar simple glass being installed and need not to install special-purpose lead glass.
5. small-sized radiation proof camera according to claim 1 is characterized in that carrying out radiation shield by the 4 pairs of cameras of radiation protective casing that are wrapped in outside the camera installation shell 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101597168A CN102238858A (en) | 2010-04-23 | 2010-04-23 | Miniature low-cost radiation-proof camera capable of being used in nuclear radiation environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101597168A CN102238858A (en) | 2010-04-23 | 2010-04-23 | Miniature low-cost radiation-proof camera capable of being used in nuclear radiation environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102238858A true CN102238858A (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101597168A Pending CN102238858A (en) | 2010-04-23 | 2010-04-23 | Miniature low-cost radiation-proof camera capable of being used in nuclear radiation environment |
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| CN (1) | CN102238858A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540434A (en) * | 2012-01-16 | 2012-07-04 | 赵小鹏 | Design method for optical path structure with nuclear radiation-resistant function |
| CN102682861A (en) * | 2012-06-12 | 2012-09-19 | 天津市联大通讯发展有限公司 | Anti-radiation camera shooting device |
| CN103137229A (en) * | 2011-11-25 | 2013-06-05 | 中国原子能科学研究院 | Irradiation-resistant camera shooting observation device |
| CN105467397A (en) * | 2015-12-30 | 2016-04-06 | 中国核电工程有限公司 | Laser ranging system applied to radiation environment |
| CN111355869A (en) * | 2018-12-21 | 2020-06-30 | 核动力运行研究所 | High-temperature-resistant and irradiation-resistant video equipment |
| CN114979442A (en) * | 2022-05-25 | 2022-08-30 | 西南科技大学 | Multi-path image acquisition device and control method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005312949A (en) * | 2004-03-31 | 2005-11-10 | Canon Inc | Radiation imaging device and its control method |
| CN101620361A (en) * | 2009-08-12 | 2010-01-06 | 绵阳固创科技有限责任公司 | Nuclear radiation resisting and reinforcing method of visual system |
-
2010
- 2010-04-23 CN CN2010101597168A patent/CN102238858A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005312949A (en) * | 2004-03-31 | 2005-11-10 | Canon Inc | Radiation imaging device and its control method |
| CN101620361A (en) * | 2009-08-12 | 2010-01-06 | 绵阳固创科技有限责任公司 | Nuclear radiation resisting and reinforcing method of visual system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137229A (en) * | 2011-11-25 | 2013-06-05 | 中国原子能科学研究院 | Irradiation-resistant camera shooting observation device |
| CN102540434A (en) * | 2012-01-16 | 2012-07-04 | 赵小鹏 | Design method for optical path structure with nuclear radiation-resistant function |
| CN102540434B (en) * | 2012-01-16 | 2013-12-25 | 赵小鹏 | Design method for optical path structure with nuclear radiation-resistant function |
| CN102682861A (en) * | 2012-06-12 | 2012-09-19 | 天津市联大通讯发展有限公司 | Anti-radiation camera shooting device |
| CN105467397A (en) * | 2015-12-30 | 2016-04-06 | 中国核电工程有限公司 | Laser ranging system applied to radiation environment |
| CN111355869A (en) * | 2018-12-21 | 2020-06-30 | 核动力运行研究所 | High-temperature-resistant and irradiation-resistant video equipment |
| CN114979442A (en) * | 2022-05-25 | 2022-08-30 | 西南科技大学 | Multi-path image acquisition device and control method thereof |
| CN114979442B (en) * | 2022-05-25 | 2023-10-31 | 西南科技大学 | Multipath image acquisition device and control method thereof |
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Application publication date: 20111109 |