Electron-beam-pumped one-dimensional array of light emitters

An electron-beam-excited one-dimensional array of elongated light emitters is described. It is shown that in such a device the element brightness is not limited by the electron-beam power density, but is rather 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 by an order to magnitude at the expense of lower resolution by the use of microlenses. A sealed-off one-dimensional array CRT and its performance are described. Laser arrays indirectly pumped by e-beam excited radiation are described. It is shown that the proposed pumping scheme compares favorably with conventional flashlamp excitation efficiency, and in addition, has some unique advantages.