Super second-generation image intensifier achieves close-fitting cathode flange and processing method
An image intensifier and processing method technology, which is applied in the manufacturing of light-emitting cathodes, cathode ray tubes/electron beam tubes, electrode assemblies, etc., can solve the problem of poor parallelism control of photocathode and microchannel plate, and restrict the super second generation image enhancement. In order to improve the quality stability, improve the consistency, and ensure the concentricity
Active Publication Date: 2022-04-29
NORTH NIGHT VISION TECH
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] At present, in the control of the cathode proximity focus distance of the super-second-generation image intensifier, there are problems such as insufficient stability of the cathode proximity distance control, poor control of the parallelism between the photocathode and the micro-channel plate, etc., which seriously restrict the super-second-generation image intensifier. device production and application
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0023] Such as figure 1 As shown, the present invention provides a super second generation image intensifier cathode proximity focusing distance control method, including an improved cathode flange, the structure is divided into a flange body 1, a through hole 2, a boss 3, Indium holding groove 4, positioning pin 5 and indium row groove 6.
[0024] The method of using an improved cathode flange provided by the present invention is as follows: Firstly, the flange body 1 is welded with other shell components by brazing to form a super-second-generation image intensifier shell assembly. Then fill the bulk indium tin alloy in the indium holding tank 4, heat in a vacuum heating furnace to melt the indium tin alloy and f...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a cathode flange and a processing method for a super second-generation image intensifier to realize close-fit focusing, including an improved cathode flange and an improved turning processing method. An improved cathode flange includes a flange body, a through hole, a boss, an indium holding groove, a positioning pin, and an indium row groove. An improved turning method is to turn the surface A of the assembly ring on the basis of the surface B of the assembly ring in the shell structure of the super-second-generation image intensifier. Then, based on the surface A of the assembly ring, the boss of the improved cathode flange is turned. The invention can realize the precise control of the close-fitting focusing distance of the cathode of the super-second-generation image intensifier, improve the consistency of the space size of the cathode after sealing, the concentricity of the cathode and the cathode flange, and the parallelism between the cathode and the microchannel plate , to improve the quality stability of the image intensifier.
Description
technical field [0001] The invention relates to a cathode flange and a processing method for a super second-generation image intensifier to realize close-fitting focus, and belongs to the technical field of low-light image intensifiers. Background technique [0002] The low-light image intensifier is the core of the low-light night vision device and has important applications in the fields of production and scientific research. [0003] At present, the image intensifier mainly produced in China is the super-second-generation image intensifier, and its structure includes photocathode, microchannel plate, fluorescent screen and so on. [0004] The photocathode can produce the external photoelectric effect, and when the weak light image is incident on the super-second-generation image intensifier, it can reach an excited state and emit photoelectrons. Photoelectrons reach the microchannel plate under field confinement. The microchannel plate plays the role of electron amplifi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01J29/04H01J31/50H01J9/12H01J9/18
CPCH01J29/04H01J9/12H01J31/507H01J9/18
Inventor 苏德坦何玄高海鹏褚祝军冯辉潘治云杨振王乙瑾胡啟旭
Owner NORTH NIGHT VISION TECH