WATERPROOF FILM, WATERPROOF MEMBER EQUIPPED WITH THE SAME, AND ELECTRONIC APPARATUS

To provide a waterproof film capable of coping with further reduction of a sound transmission region.SOLUTION: Disclosed is a waterproof film in which, when an area of a transmission region is 1.3 mm2, an insertion loss for sound of a frequency of 1 kHz is 5.0 dB or less, and the insertion loss for...

Full description

Saved in:
Bibliographic Details
Main Authors FUKUSHIMA TAMAO, KITAGAWA HISAE, KAMAMOTO YU, INOUE TAKEO
Format Patent
LanguageEnglish
Japanese
Published 08.07.2021
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
TELEPHONIC COMMUNICATION
Online AccessGet full text

Cover

More Information
Summary:To provide a waterproof film capable of coping with further reduction of a sound transmission region.SOLUTION: Disclosed is a waterproof film in which, when an area of a transmission region is 1.3 mm2, an insertion loss for sound of a frequency of 1 kHz is 5.0 dB or less, and the insertion loss for the sound of the frequency of 10 kHz is 5.0 dB or less.SELECTED DRAWING: Figure 1 【課題】音の透過領域のさらなる縮小にも対応可能な防水膜を提供する。【解決手段】透過領域の面積が１．３ｍｍ2のときに、周波数１ｋＨｚの音に対する挿入損失が５．０ｄＢ以下であり、周波数１０ｋＨｚの音に対する挿入損失が５．０ｄＢ以下である防水膜とする。【選択図】図１
Bibliography:Application Number: JP20210039262