CN112015028A - Camera radiation protection device - Google Patents
Camera radiation protection device Download PDFInfo
- Publication number
- CN112015028A CN112015028A CN202010910727.9A CN202010910727A CN112015028A CN 112015028 A CN112015028 A CN 112015028A CN 202010910727 A CN202010910727 A CN 202010910727A CN 112015028 A CN112015028 A CN 112015028A
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- China
- Prior art keywords
- radiation
- light
- shell
- camera
- emergent
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a radiation protection device for a camera, which comprises a shell with a hollow structure, wherein an incident installation interface is arranged on the right side surface of the shell, and a placing groove for placing the camera is arranged on the left side of the upper end surface of the shell; the bottom of the placing groove is provided with an emergent installation interface; an optical channel is arranged in the inner cavity of the shell; the incident installation interface and the emergent installation interface are respectively communicated with the inlet and the outlet of the light channel; a radiation shielding layer is arranged in an inner cavity between the shell and the light channel and used for shielding radiation rays in the environment and preventing the radiation rays from penetrating through the shell to damage the camera; a reflecting and transmitting lens group is arranged in the light ray channel; the whole optical and radiation shielding system is formed to filter and absorb ionizing radiation rays in light. The observation of a certain section of landscape under a radioactive environment is realized, and the camera can be protected from being damaged by radiation.
Description
Technical Field
The invention relates to the technical field of cameras, in particular to a radiation protection device of a camera.
Background
In medical, industrial and high-energy laboratories, objects with radioactive wave bands need to be observed by a camera or a certain landscape is observed under a radioactive environment; if the camera is directly opposite to the radioactive source, the camera is easily damaged by radioactive ray radiation.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a camera radiation protection device capable of effectively filtering radiation rays from visible light so as to solve the problems in the background technology.
The technical scheme adopted by the invention is as follows:
the camera radiation protection device comprises a shell with a hollow structure, and is characterized in that an incident installation interface is arranged on the right side surface of the shell, and a placing groove for placing a camera is arranged on the left side of the upper end surface of the shell; the bottom of the placing groove is provided with an emergent installation interface; the incident installation interface and the emergent installation interface are respectively provided with an incident lens and an emergent lens; the inner cavity of the shell is provided with a light channel for transmitting light; the incident installation interface and the emergent installation interface are respectively communicated with the inlet and the outlet of the light channel.
The inner chamber between shell and the light passageway is provided with radiation shielding layer, radiation shielding layer is arranged in the shielding environment ionizing radiation ray, prevents that radiation ray from penetrating the shell and damaging parts such as camera electron, optics, machinery.
A reflecting and transmitting lens group is arranged in the light ray channel; the reflecting and transmitting lens group is used for refracting and reflecting visible light in light rays from the incident mounting interface to the emergent mounting interface and the emergent lens through the incident lens and the light ray channel in sequence; the optical and radiation shielding system formed under the combined action of the reflecting and transmitting lens group and the radiation shielding layer realizes the optical imaging required actually, and simultaneously filters and absorbs the ionizing radiation rays in the light.
Preferably, the reflecting and transmitting mirror group consists of a plurality of visible light reflecting and transmitting mirrors; the visible light reflector is one of a plane mirror or a total reflection prism.
Preferably, the visible light reflector is made of a transparent material with a high refractive index or a high-precision reflector.
Preferably, the outgoing mounting interface is provided with a radiation ray sensor at the light passage.
Preferably, the material of the radiation shielding layer is a composite material composed of boron-containing polyethylene, lead or a combination thereof.
Compared with the prior art, the invention has the beneficial effects that:
the invention arranges a light channel communicated with an incident installation interface and an emergent installation interface in a hollow shell cavity, and arranges an optical reflection and transmission lens group in the light channel; meanwhile, a radiation shielding layer is arranged in a cavity between the shell and the light channel; the radioactive rays in the environment are effectively shielded by the system, and are refracted and reflected to the emergent mounting interface and the emergent lens from the incident mounting interface through the incident lens and the light channel in sequence, and then are imaged on the camera sensor; wherein, after part of radiation ray penetrates through the reflecting and transmitting lens group of the light channel, the radiation ray is gradually absorbed due to the labyrinth effect of the refraction-reflection light path, thereby being filtered out and prevented from penetrating through the shell; the observation of a certain section of landscape under a radioactive environment is realized, and the camera can be protected from being damaged by radioactive rays.
Drawings
FIG. 1 is a schematic structural diagram of a camera radiation protection device according to the present invention;
wherein: the device comprises a shell 1, a radiation shielding layer 2, a reflecting and transmitting lens group 3, a camera 4, a radiation ray sensor 5, an incidence lens 6, an emergence lens 7, an incidence installation interface 11, a placing groove 12, an emergence installation interface 13, a light ray channel 14 and a reflecting mirror 31.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "front," "back," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention will be further described with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1, a radiation protection device for a camera comprises a housing 1 with a hollow structure, and is characterized in that an incident installation interface 11 is arranged on the right side surface of the housing 1, and a placing groove 12 for placing a camera 4 is arranged on the left side of the upper end surface of the housing 1; the bottom of the placing groove 12 is provided with an emergent mounting interface 13; the incident installation interface and the emergent installation interface are respectively provided with an incident lens and an emergent lens; the inner cavity of the shell 1 is provided with a light channel 14 for transmitting light; the incident installation interface 11 and the emergent installation interface 13 are respectively communicated with an inlet and an outlet of the light channel 14; the entrance, the exit and the channel of the light channel 14 can be provided with optical lens group according to the actual observation requirement.
The inner chamber between shell 1 and the light passageway 14 is provided with radiation shielding layer 2, radiation shielding layer 2 is arranged in shielding environment light and radiates the ray, prevents that radiation ray from penetrating shell radiation to the external environment and damaging parts such as camera electronics, optics, machinery.
A reflecting and transmitting lens group 3 is arranged in the light channel 14; the reflecting and transmitting lens group 3 is used for refracting and reflecting visible light in light from the incident installation interface 11 to the emergent installation interface 13 and the emergent lens 7 through the incident lens 6 and the light channel 14 in sequence, the reflecting and transmitting lens group 3 realizes optical imaging which is actually required, and the whole optical and radiation shielding system realizes filtering and absorbing ionizing radiation rays in light.
Further, as shown in fig. 1, the reflecting and transmitting mirror group 3 is composed of a plurality of visible light reflecting mirrors 31; the visible light reflecting mirror 31 is one of a plane mirror or a total reflection prism; the number of the visible light reflecting mirrors 31 is determined according to the radiation intensity of the pipeline channel 14 and the landscape.
Further, as shown in fig. 1, the visible light reflecting mirror 31 is made of a transparent material having a high refractive index or a high-precision reflecting mirror subjected to a special corrosion prevention treatment.
In this embodiment, if the reflective and transmissive mirror group 3 is a total reflection prism made of a transparent material with a high refractive index, the total reflection prism has the characteristics of clearer imaging and less optical energy loss, and is suitable for radiation scenes with higher requirements on definition.
Further, as shown in fig. 1, the exit mounting interface 13 is provided with a radiation ray sensor 5 at the light passage 14; the radiation ray sensor 5 is used for detecting whether radiation rays in light rays entering the emergent mounting interface 13 exceed standards or not, when the radiation rays do not exceed the standards, the camera 4 is placed in the placing groove 12 to observe the radiation condition of the landscape, otherwise, the composition, the geometric dimension, the mounting design and other elements of the shielding material are adjusted until the requirements are met.
Furthermore, the radiation shielding layer is made of a composite material composed of boron-containing polyethylene, lead or a combination thereof.
In the embodiment, the boron-containing polyethylene is formed by adopting 20% by mass of highly pulverized powder boron carbide and then mixing the boron-containing polyethylene into polyethylene by a physical method, has good chemical stability and high temperature resistance, has strong radiation ray shielding capability, and shields radiation rays and prevents the radiation rays from penetrating through the shell.
In addition, the specific material, geometric dimension, specific design and other factors of the shielding layer 2 are adopted, and for complex situations, simulation and design are carried out according to Monte Carlo algorithm (FLUKA, MCNP and the like) before manufacturing.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the protective scope of the present patent claims.
Claims (5)
1. The camera radiation protection device comprises a shell with a hollow structure, and is characterized in that an incident installation interface is arranged on the right side surface of the shell, and a placing groove for placing a camera is arranged on the left side of the upper end surface of the shell; the bottom of the placing groove is provided with an emergent installation interface; the incident installation interface and the emergent installation interface are respectively provided with an incident lens and an emergent lens; the inner cavity of the shell is provided with a light channel for transmitting light; the incident installation interface and the emergent installation interface are respectively communicated with the inlet and the outlet of the light channel;
a radiation shielding layer is arranged in an inner cavity between the shell and the light channel and is used for shielding ionizing radiation rays in the environment and preventing the radiation rays from penetrating through the shell to damage parts such as camera electronics, optics, machinery and the like;
a transmission lens group is arranged in the light channel; the reflecting and transmitting lens group is used for refracting and reflecting visible light in light rays from the incident mounting interface to the emergent mounting interface and the emergent lens through the incident lens and the light ray channel in sequence; the optical and radiation shielding system formed under the combined action of the reflecting and transmitting lens group and the radiation shielding layer realizes the optical imaging required actually, and simultaneously filters and absorbs the ionizing radiation rays in the light.
2. The anti-radiation device for camera of claim 1, wherein said reflecting and transmitting lens group is composed of several visible light reflecting and transmitting lenses; the visible light reflector is one of a plane mirror or a total reflection prism.
3. The camera radiation protection device of claim 1, wherein said visible light reflector is made of a transparent material with high refractive index or a high precision reflector.
4. The camera radiation protection device of claim 1, wherein said exit mounting interface is provided with a radiation ray sensor at the light path.
5. The radiation protection device of claim 1, wherein said radiation shielding layer is made of a composite material comprising boron-containing polyethylene, lead, or a combination thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010910727.9A CN112015028A (en) | 2020-09-02 | 2020-09-02 | Camera radiation protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010910727.9A CN112015028A (en) | 2020-09-02 | 2020-09-02 | Camera radiation protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112015028A true CN112015028A (en) | 2020-12-01 |
Family
ID=73515566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010910727.9A Pending CN112015028A (en) | 2020-09-02 | 2020-09-02 | Camera radiation protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112015028A (en) |
-
2020
- 2020-09-02 CN CN202010910727.9A patent/CN112015028A/en active Pending
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