Light emitting apparatus

Details Light emitting apparatus Light emitting apparatus

1989-08-29

1990-03-20

Evans, Arthur G.

Recorders

Electric recording

Electrochemical

346160, G01D 1500

Patent

active

049105345

ABSTRACT:
A light emitting apparatus in a head of an non-impact printer using an array-mode semiconductor light emitting device and emitting a radiant light in parallel to the surface of a substrate. The improved device is capable of easily arranging a head substrate, a lens system, and a drum on a central axis thereof by adopting a method of emitting a light in parallel to said head substrate. To achieve the object the device comprises: a reflecting surface 8 formed by shaving one corner of a substrate 6 in a given angle of slope; a plurality of strip wires (W11, W12, . . . ) disposed, in parallel and a fixed interval, on uppermost surface 11 of the substrate 6, said wires each extending towards said corner from the opposite side thereof; a common electrode wire 4 disposed on said uppermost surface in parallel with said wires; and a plurality of light emitting means each disposed lowermost surface of a plurality of light emitting chips (C1, C2, . . . ), said light emitting means being disposed opposite to said reflecting surface maintaining said given angle therebetween, thereby light emitted from said light emitting means is reflected at said reflecting surface towards a direction according to said given angle.

REFERENCES:
patent: 4766448 (1988-08-01), Hack et al.
patent: 4779108 (1988-10-01), Inoue

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