An image forming system utilizing a light emitting diode (LED array) having LEDs arranged along a curved line. The LEDs are either edge emitting type LEDs or surface emitting type LEDs. The LEDs of the LED array emit light towards a center or optical axis of the lens. A plurality of lenses are connected...http://www.google.se/patents/US6188086?utm_source=gb-gplus-sharePatent US6188086 - Light emitting diode array and optical image forming apparatus with light emitting diode array
