Electron beam emitting apparatus and image-forming apparatus

Details Electron beam emitting apparatus and image-forming apparatus Electron beam emitting apparatus and image-forming apparatus

2007-02-20

2007-02-20

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S496000, C313S310000

Reexamination Certificate

active

10705880

ABSTRACT:
An electron beam emitting apparatus has a first plate with an electron-emitting device15, and an electrode8opposed to the first plate, and the electrode8is applied a potential to accelerate electrons emitted from the electron-emitting device15. In the electron beam emitting apparatus, a potential defining region9is provided a surface of the first plate on the electrode8side and a first potential defining region forming the potential defining region9is provided in a projective area of the electrode8onto the potential defining region9; and, where d represents a distance between the electrode8and the potential defining region9, an additional potential defining region is defined in the range of 0.83d in all directions parallel to the first plate from the edge of the projective area of the electrode8onto the potential defining region9. This stabilizes trajectories of electrons and permits an excellent image to be formed without deviation of light emission positions.

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