Laser obstacle ranging and display

Details Laser obstacle ranging and display Laser obstacle ranging and display

2007-07-20

2010-12-07

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S227120, C372S006000

Reexamination Certificate

active

07847235

ABSTRACT:
A novel laser obstacle warning and ranging system, for detecting hard-to-see long and thin obstacles in particular, comprises a fiber laser including a signal diode, a circulator, an erbium doped fiber, a wavelength division multiplexer, a narrow band reflector, a first fiber pump diode, an input combiner, an erbium-ytterbium co-doped fiber, a second fiber pump diode, an output combiner and a third fiber pump diode.

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patent: 2003/0141965 (2003-07-01), Gunderson et al.
patent: 2008/0219300 (2008-09-01), Krupkin et al.
patent: 2009/0204110 (2009-08-01), Islam
patent: A-0 668 671 (1995-08-01), None
patent: A-0 729 207 (1996-08-01), None
patent: WO 98/42050 (1998-09-01), None
Thirteen-page International Preliminary Report on Patentability for priority Appl. No. PCT/IL2006/000080.
Twelve-page Written Opinion for priority Appl. No. PCT/IL2006/000080.

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