Phototube for measuring transmittance of ultraviolet cathode

Abstract

The invention discloses a phototube for measuring transmittance of an ultraviolet cathode and mainly used for measuring the transmittance of the ultraviolet cathode of an ultraviolet image intensifier. The technical scheme adopted by the invention is as follows: the phototube includes a Kovar ring, a flange plate is welded to each of the two ends of the Kovar ring to form a tube shell; the flange plates and quartz glass are connected in a sealing manner at the upper part of the tube shell to form a cathode quartz glass input window; an ultraviolet cathode layer is made on the inner circular area of the quartz glass; an anode quartz glass output window is welded to the flange plates at the lower part of the tube shell. Applications prove that, the phototube provided by the invention can easily and accurately measure the transmittance of the ultraviolet cathode; during the development of the ultraviolet cathode, the formula for preparing the ultraviolet cathode is optimized, so that the ultraviolet cathode with high cathode sensitivity is produced; the ultraviolet cathode plays an important role in improving the comprehensive technical performance of the ultraviolet image intensifier.

Description

Technical field [0001] The present invention involves a measuring tool for photovoltaic cathode indicators, which is mainly used to measure the passage of ultraviolet optical cathode of UV image enhancers.It can also be used for measurement of similar indicators of other optoelectric computers. Background technique [0002] UV image enhancer (see figure 1 ), Mainly consisting of cathode quartz glass input windows 1. UV photoelectric cathode 2. Microcardio board 3, fluorescent screen 4, anode optical glass output window 5, and tube shell 6.Main working principles: The ultraviolet light of the scene is incident into the UV Optoelectronics 2 through the cathode quartz glass input window 1 and converted into an electronic image. After the electrical image is enhanced by the microver board 3, it is transmitted to the fluorescent screen 4 and transformed into a visual optical optics.Like the output of 5 output windows of the anode optical glass for eye observation.Ultraviolet enhancers...

AI Technical Summary

Problems solved by technology

[0004] The main technical problem and purpose to be solved in the present invention are: according to the difficult problem existing in measuring the transmittance of ultraviolet photocathode at present, design a kind of special photoelectric tube, for The measurement of the transmittance of the ultraviolet photocathode fundamentally overcomes the defect that the transmittance of the ultraviolet photocathode cannot be measured

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