Lamp apparatus for optical communication

Details Lamp apparatus for optical communication Lamp apparatus for optical communication

1997-08-22

1999-09-28

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359109, H04B 1004

Patent

active

059597550

ABSTRACT:
The improved lamp apparatus comprises at least a trough-shaped main mirror having a parabolic inner surface, a pair of plane mirrors inclined at opposite ends of said main mirror in such a way as to leave the inner surface of said main mirror open, two light-emitting devices for optical communication that are provided to face said plane mirrors, and a small mirror provided around each of said light-emitting devices to reflect light toward said plane mirrors. The mirror assembly which permits light to spread only in a horizontal direction is combined with a leadframe which assures satisfactory heat dissipation even under application of a large current, thereby creating a luminous intensity distribution pattern from the lamp apparatus that covers a wide range in the horizontal direction even if it is used alone.

REFERENCES:
patent: 5278536 (1994-01-01), Furtaw et al.
patent: 5424859 (1995-06-01), Uehara et al.

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