Acousto-optic activity for acoustic imaging

Details Acousto-optic activity for acoustic imaging Acousto-optic activity for acoustic imaging

2003-07-01

2004-05-25

Dang, Hung X. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S305000

Reexamination Certificate

active

06741382

ABSTRACT:

The improved acousto-optic activity for acoustic imaging which is provided by this method—and product—is substantiated via measurements made at specific viewing conditions.
The improvement is accomplished by adding second media to first media to form net media and comparing the acousto-optic activities of first media and net media. Without using specific viewing conditions the improvement can not be reliably confirmed and can not be reliably useful.
In this comparing of various media it was discovered that the data were not reliable until the media are imaged at optimum angles because—it was discovered—the optimum viewing angles of the first media and the net media differed.
Accurate measurements to compare acousto-optic activities of media depend on the optimum angle viewing art taught by Sandhu in U.S. Pat. No. 6,049,411 filed 14 Oct. 1998 and issued 11 Apr. 2000 and which is incorporated herein by reference.


REFERENCES:
patent: 6049411 (2000-04-01), Sandhu
patent: 6628451 (2003-09-01), Sandhu et al.

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