| 摘要 |
<p>PURPOSE:To simplify the constitution and to reduce the cost by transmitting light to one optical fiber, rotating this optical fiber and transmitting the light to an optical fiber group in order, and scanning light from the optical fiber group on a photosensitive drum in order. CONSTITUTION:Modulated light emitted by a laser diode 10 is transmitted to the optical fiber 33 through a lens 20. The projection end of the optical fiber 33 is put opposite incidence ends of optical fibers 41,... in order by the intermittent rotation of a fiber holding shaft 31 by the driving force of a driving part 32 at intervals f one pulse and the light projected from the optical fiber 33 is projected from linear projection ends of the optical fibers 41,... in order in the scanning direction of the hotosensitive drum 50. Then, the projection ends of the optical fiber 33 makes one turn along the annular incidence end of the optical fibers 41,... to complete one scan on the photosensitive drum 50.</p> |
