Title: Cathod-ray tube provided with luminescent indium orthoborate
Application Number: 86100953 Application Date: 1986.02.08
Publication Number: 1002215 Publication Date: 1986.08.06
Approval Pub. Date: 1989.11.29 Granted Pub. Date: 1989.11.29
International Classifi-cation: C09K11/62;C09K11/63;H01J1/63;H01J29/20
Applicant(s) Name: N.V. Philips Gloeilampenfabrieken Address:
Inventor(s) Name: Jan Louis;Van Koesveld
Attorney & Agent: WU ZENGYONG DU YOUWEN
Abstract:
    A cathode-ray tube provided with a luminescent screen comprising a luminescent indium orthoborate activated by trivalent chromium. The tube yields an efficient emission in the near infrared part of the spectrum. If the borate further comprises Eu as an activator, an efficient Eu3 emission is obtained in addition to the Cr emission.
Time: 4
<- Previous Patent:Chrome humates as drilling mud ad...   |  Next Patent:Water resistant foamed product ->