Electron beam pumped one-dimensional array of light emitters.

An electron beam excited one-dimensional array of elongated rod-like elements is proposed. It is shown that in the proposed device the element brightness is not limited by the electron beam power density, but is a function of the total power deposited in the element. A dramatic increase in brightness levels is thus potentially possible. The coupling of the emitted light to the collecting optics may be improved an order of magnitude at the expense of lower resolution by the use of microlenses.