| 摘要 |
<p>An assembly of monoliths 16 containing light emitting diodes 18 (LED's) yields a relatively long array of LED's with high light density and a contiguous set of light centers. Each monolith has two parallel rows of light emitting diodes, and the light emitting diodes of one row are laterally offset towards to the light emitting diodes of the adjacent row to give a higher light density than would be the case if they were not so offset. A fiber optic cover 24 is placed over the exposed surfaces of the LED's to limit escape of light and to protect the LED's from damage. A gel 28 having a relatively high refractive index is applied between the LED's and the fiber optic cover. The assembly may be used in apparatus for electronically recording data using a xerographic machine. <IMAGE></p> |
