Soundproof structure and soundproof structure manufacturing method
AssigneeFUJIFILM Corporation
InventorsShinya Hakuta, Shogo Yamazoe, Tadashi Kasamatsu, Masayuki Naya
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Abstract
A soundproof structure has a plurality of soundproof cells arranged in a two-dimensional manner. Each of the plurality of soundproof cells includes a frame formed of a frame member forming an opening and a film fixed to the frame. Two or more types of soundproof cells having different first resonance frequencies are present in the plurality of soundproof cells. A shielding peak frequency at which transmission loss is maximized is present within a range equal to or higher than a lowest frequency among first resonance frequencies of the soundproof cells and equal to or lower than a highest frequency among the first resonance frequencies of the soundproof cells.
Claims18
A soundproof structure, comprising:
- a plurality of soundproof cells arranged in a two-dimensional manner,
- wherein each of the plurality of soundproof cells comprises a frame formed of a frame member forming an opening and a film fixed to the frame,
- end portions of the frame on both sides of the opening are not blocked,
- two or more types of soundproof cells having different first resonance frequencies are present in the plurality of soundproof cells, and
- a shielding peak frequency at which transmission loss is maximized is present within a range equal to or higher than a lowest frequency among first resonance frequencies of the soundproof cells and equal to or lower than a highest frequency among the first resonance frequencies of the soundproof cells.
Dependencies are inferred from the claim text.