Oxide cathode for electron gun with a differentially doped...

Details Oxide cathode for electron gun with a differentially doped... Oxide cathode for electron gun with a differentially doped...

2007-04-24

2007-04-24

Patel, Vip (Department: 2879)

Electric lamp and discharge devices

Electrode and shield structures

Cathodes containing and/or coated with electron emissive...

C313S3460DC

Reexamination Certificate

active

10522115

ABSTRACT:
The metallic substrate of this cathode has a thickness ≦100 μm and contains a plurality of reducing agents as Si or Al and on the top face111,0.005%<Mg≦0.1%, Si or Al≦0.025%, and W≦3%, on the bottom face122,Mg weight concentration is inferior to the Mg weight concentration on the top face, and Si or Al weight concentration is superior to Si or Al weight concentration on the top face and superior to 0.02%. Lifetime is maximized and turn-on-time is minimized.

REFERENCES:
patent: 3535757 (1970-10-01), Nestleroth et al.
patent: 3911312 (1975-10-01), Coenen et al.
patent: 4215180 (1980-07-01), Misumi et al.
patent: 1152447 (2001-11-01), None
Search Report Dated Dec. 1, 2003.

Affiliated with

Also associated with

Rating

Oxide cathode for electron gun with a differentially doped... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oxide cathode for electron gun with a differentially doped..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxide cathode for electron gun with a differentially doped... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3791332