Electron image device

Details Electron image device Electron image device

1966-06-23

1979-11-06

Blum, Theodore M.

Electric lamp and discharge devices

Geiger-mueller type

313102, 250213VT, H01J 3900

Patent

active

041737270

ABSTRACT:
This invention relates to electron image devices for focusing an electron image derived from a photocathode element onto a target element with a substantially planar surface. More specifically, the photocathode element has an electron emitting surface of a substantially spherical configuration, a cylindrical electrode disposed around the axis of this device and having a diameter of a magnitude in the approximate range of 2.0 to 2.2 times the length of the radius of the photocathode element, an anode element having an aperture therein with a diameter of a magnitude not less than 0.3 nor more than 0.5 times the length of the photocathode radius, and a conical portion extending from the aperture at an angle of approximately 45.degree. with respect to the axis of this device.

REFERENCES:
patent: 2692341 (1954-10-01), Schagen et al.
patent: 2757293 (1956-07-01), Teves et al.
patent: 2994798 (1961-08-01), Krieger et al.
patent: 3225204 (1965-12-01), Schagen et al.
patent: 3280356 (1966-10-01), Stoudenheimer et al.

Affiliated with

Also associated with

Rating

Electron image device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electron image device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron image device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-463345