Device and method for performance comparison of fluorescent screens of image intensifier
A technology of image intensifier and comparison device, which is applied in the manufacture of tubes/lamp screens, the application of luminous paints, and the measurement/test in the manufacturing process, etc. It can solve the problems of many interference variables and the difficulty of accurate comparison, etc., and achieve the comparison results Intuitive, intuitive and accurate comparison results, accurate and reliable comparison results
Active Publication Date: 2021-06-01
NORTH NIGHT VISION TECH
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Problems solved by technology
[0005] The object of the present invention is to provide a method and device for comparing the performance of the fluorescent screen of an image intensifier, by making a fluorescent screen that can be coated with two different phosphors at the same time, Focus on solving the problem that there are many interference variables when comparing the imaging performance of different phosphors on the fluorescent screen of the image intensifier, and it is difficult to make accurate comparisons, improve test accuracy and test efficiency, and provide effective support for scientific research and production
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Embodiment 1
[0052] Such as figure 2 Shown is an image intensifier anode window consisting of an anode face plate bonded to a flange to serve as a phosphor screen substrate. The small surface on the upper part of the panel is the working surface, and the fluorescent powder is painted on the working surface.
[0053] The present invention firstly provides a device for comparing the performance of the fluorescent screen of an image intensifier, and the device is divided into a rotating base and a powder spreading kit. The swivel base is used to install and place the image intensifier anode window and dusting kit. The powder spreading kit is installed on the rotating base and is used to divide the working surface into two areas, which can simultaneously coat two different phosphors on the phosphor screen.
[0054] The rotating base of the present invention is as Figure 5As shown, the overall shape is cylindrical, with a cylindrical groove in the center, the diameter of which is consisten...
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The invention discloses a device and method for performance comparison of fluorescent screens of an image intensifier. The device comprises an image intensifier anode window, a rotating base and a dusting kit, wherein the rotating base is used for installing and placing the image intensifier anode window and the dusting kit. According to the invention, fluorescent powder is brush-painted on the working face of an anode panel of the anode window, a central groove is formed in the center of the rotating base, an air exhaust hole is formed in the bottom of the central groove, an annular groove is further formed in the periphery of the central groove, and the dusting kit can be inserted into the annular groove; the dusting kit is a hollow cylinder; and a transverse partition surface is arranged in the middle of the upper surface of the dusting kit and divides the upper part of a cylindrical cavity into two parts. According to the method, the device is used, one half of fluorescent powder I is brush-painted at first, then the other half of the fluorescent powder II is brush-painted, and then inspection is conducted under a microscope through transmission light, so the problems of pinholes, cracks and the like of fluorescent screens made of different kinds of fluorescent powder can be inspected at the same time; and an electronic gun device is used for detection, and the screen effect of the fluorescent screens made of different kinds of fluorescent powder is inspected at the same time.
Description
technical field [0001] The invention relates to the field of low-light image intensifiers, in particular to a performance comparison device and method for fluorescent screens of image intensifiers. Background technique [0002] Image intensifier is a kind of photoelectric imaging device, which is widely used in military and scientific research fields. The focus of current image intensifier development is to improve the operating distance and image clarity. As one of the core components of the image intensifier, the fluorescent screen plays a vital role in the performance of the image intensifier. [0003] Phosphor powder is the main material of the fluorescent screen, and the particle diameter and luminous efficiency of the phosphor powder itself play a decisive role in the performance of the fluorescent screen. Phosphor powder has evaluation indicators such as particle size, color tone, and stability, but the focus of production and development is the resolution and brigh...
Claims
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IPC IPC(8): H01J9/42H01J9/22
CPCH01J9/22H01J9/42
Inventor 曾进能杨玺文王艳李金沙潘治云唐永滋胡啟旭张何丽吴艳娟朱世聪
Owner NORTH NIGHT VISION TECH