Nearly Spherical Acoustic Lenses
作者:
Henry R. Feldman,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1969)
卷期:
Volume 45,
issue 4
页码: 868-871
ISSN:0001-4966
年代: 1969
DOI:10.1121/1.1911561
出版商: Acoustical Society of America
数据来源: AIP
摘要:
A method of realizing an underwater acoustic lens that forms an image with no aberration of an object lying at infinity in a given direction is described. The lens is nearly spherically symmetric so that the aberrations for objects off this axis are small. It makes use of two existing materials of uniform acoustic velocity as the lens media. The equations governing the structure of such a lens and some results of their solution are given.
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