Optical: systems and elements – Deflection using a moving element – Pivotal or rotational element
Reexamination Certificate
2007-10-31
2008-11-18
Phan, James (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Pivotal or rotational element
C359S203100, C359S212100, C359S855000
Reexamination Certificate
active
07453619
ABSTRACT:
Disclosed herein is an optical delay line. The optical delay line includes a body and at least one wing, which constitute a rotating body that rotates around a rotational axis. The rotational wing includes a retroreflective curved surface, which is formed so that light can be vertically reflected by a reflective surface of the rotational wing. The retroreflective curved surface is formed so as to reversely reflect the light while varying an optical path difference at a predetermined speed when the rotating body rotates at a regular angular velocity. Thus, a long time delay value can be effectively generated.
REFERENCES:
patent: 5907423 (1999-05-01), Wang et al.
patent: 7046412 (2006-05-01), Dorney
Jeon Seok Gy
Jin Yun Sik
Kim Geun Ju
Kim Jung Il
Korea Electrotechnology Research Institute
Phan James
The Webb Law Firm
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