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US 10,475,436 B2Granted
Hexagonal 2-dimensional reflection phase grating diffuser
OwnerWesley Dean Lachot, Peter D'Antonioinventors
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Abstract
A hexagonal two-dimensional reflection phase grating diffuser includes a plurality of wells that are either part hexagonal or fully hexagonal in cross-section. The depths of the respective wells are determined through calculation of a number theory sequence such as a quadratic residue number theory sequence, a primitive root sequence, or a Chinese remainder theorem. The diffuser may be located within a listening room oriented with openings in the wells facing either downward or horizontally.
Claims20
A sound diffuser, comprising:
- a) a surface defining openings of a plurality of wells;
- b) depths of respective ones of said wells being determined by a number theory sequence based upon a prime number;
- c) each well having a substantially uniform cross-section comprising at least a portion of a hexagon;
- and
- d) said wells being contiguous with one another such that adjacent wells have common walls, said sound diffuser diffusing sound waves that enter said wells.
2 more elements
A sound diffuser, comprising:
- a) a surface defining openings of a plurality of wells;
- b) depths of respective ones of said wells being determined by a number theory sequence based upon a prime number;
- c) each well having a substantially uniform cross-section comprising at least a portion of a hexagon with at least some of said wells having hexagonal cross-sections and at least others of said wells having cross-sections comprising a fraction of a hexagon;
- and
- d) said wells being contiguous with one another such that adjacent wells have common walls, said sound diffuser diffusing sound waves that enter said wells.
2 more elements
Dependencies are inferred from the claim text.