JPH0269451U - - Google Patents

Info

Publication number

JPH0269451U

JPH0269451U JP14916288U JP14916288U JPH0269451U JP H0269451 U JPH0269451 U JP H0269451U JP 14916288 U JP14916288 U JP 14916288U JP 14916288 U JP14916288 U JP 14916288U JP H0269451 U JPH0269451 U JP H0269451U

Authority

JP

Japan

Prior art keywords

emitting portion

electron emitting

cathode

metal ring

electron

Prior art date

1988-11-15

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Pending

Links

• Espacenet
• Global Dossier
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• 229910052751 metal Inorganic materials 0.000 claims description 3
• 239000002184 metal Substances 0.000 claims description 3
• ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
• PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
• 238000010894 electron beam technology Methods 0.000 description 1
• 229910052750 molybdenum Inorganic materials 0.000 description 1
• 239000011733 molybdenum Substances 0.000 description 1