Multifunctional acousto-optic indication apparatus

The invention discloses a multifunctional acousto-optic indication apparatus including an acousto-optic indication body, pasting belts are arranged at the two side edges of the acousto-optic indication body, an LED lamp, an LED character display screen, and a loudspeaker, that are successively arran...

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Bibliographic Details
Main Authors WANG WEI, ZHANG HONGJUN, GUO GUANGCHENG, MAN ZHONGHUA, GUO WEI, SHI HONGTU, KONG LINGQI, CONG KAI, YANG LIEZHONG
Format Patent
LanguageEnglish
Published 16.12.2015
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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