| 摘要 |
An optical imaging system which utilizes a linear lens array (40) such as a gradient index lens array as the means for projecting light images onto a photosensitive image member. Exposure modulation at the image plane is reduced by oscillating the lens array during an exposure interval, for example by mechanical means (43, 44), the oscillating period and excursion distance (TE) being dependent upon the type of imaging environment the lens is used in. For document copying applications, the requirement for a two-row array to provide minimum exposure modulation is reduced so that a one-row lens array is enabled. For printer and RIS scanning functions, oscillation of a two-row array enables improved system efficiency and hence greater image irradiance and exposure. |
