Acoustic refractors

Details Acoustic refractors Acoustic refractors

1974-12-09

1976-05-18

Hix, L. T.

Acoustics

Sound-modifying means

Lens

G10K 1100

Patent

active

039571343

ABSTRACT:
A refracting structure with passages of different shapes with some separation of adjacent passages provides a minimum of sound reflections. It can be designed in the form of spherically divergent lenses with passages with cross sections in the form of squares or of concentric circular slits, a cylindrically divergent lens with slit shaped passages, and in other forms. Stagger of ends of the passages is discussed.

REFERENCES:
patent: 2684724 (1954-07-01), Kock
patent: 2848058 (1958-08-01), Hartsfield
patent: 3027964 (1962-04-01), Spragins
patent: 3303904 (1967-02-01), Kelly
patent: 3467218 (1969-09-01), Fujimoto et al.

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