Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With reflector – opaque mask – or optical element integral...
Patent
1998-07-30
1999-10-05
Saadat, Mahshid
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With reflector, opaque mask, or optical element integral...
257 88, 257 91, 257 95, 257432, 257436, 257294, 257738, 359738, 438 29, H01L 31062, H01L 310232, H01L 3300, G02B 900
Patent
active
059628740
ABSTRACT:
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 together to form a lens array. Alternatively, two lens arrays can be utilized. If two lens arrays are utilized, each of the lenses in the lens array includes an aspherical surface. The curved LED array prevents the flaring of light and produces an even pattern of light emission on a light receiving surface such as a photoconductive drum.
Masuda Kouji
Suzuki Seizo
Ricoh & Company, Ltd.
Saadat Mahshid
Wilson Allan R.
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