Night vision device, image intensifier and photomultiplier tube, transfer-electron photocathode for such, and method of making
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United States of America Patent
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Sep 19, 2000
Grant Date -
N/A
app pub date -
Oct 22, 1997
filing date -
Oct 22, 1997
priority date (Note) -
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Abstract
A night vision device includes an image intensifier tube having a photocathode responsive to light in the wavelength range extending from about 1 .mu.m to about 2 .mu.m. The photocathode releases photoelectrons in response to photons of light in this wavelength range. A photomultiplier tube includes such a photocathode to provide an image in response to light of such a wavelength. A method of making such a photocathode is set out.
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