Method of manufacturing an acoustic spherical lens

Details Method of manufacturing an acoustic spherical lens Method of manufacturing an acoustic spherical lens

1982-12-08

1984-02-28

Hall, Carl E.

Metal working

Piezoelectric device making

29421R, 29423, 65 22, 65 23, 65 61, 264 12, 264 27, 264544, H01L 4122

Patent

active

044334613

ABSTRACT:
An acoustic spherical lens where in a hemispherical hole is formed from a bubble which appears owing to the expansion of residual gases in a lens material employing silica, and the hemispherical hole is used as a lens surface.

REFERENCES:
patent: 3155748 (1964-11-01), Couri
patent: 3958559 (1976-05-01), Glenn et al.
patent: 4184094 (1980-01-01), Kopel

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