Home     Contact     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS     Terms of services     Privacy policy  
   
 Home      Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science   


<< Back to INDEX

Flex speakers for Flex devices by Fujifilm [Technology]
posted February 6 2013 20:58.16 by Giorgos Lazaridis




Fujifilm presented a new electroacoustic film which can be used as a speaker into the next generation flexible devices. It is engineered so that the sound is not distorted when bended. The trick to achieve this was to change the elasticity of the material according to the frequency it vibrates at. (!!!).

This film is normally soft, but it becomes hard in the audio frequency range. That's because it's designed so that, when the ceramic vibrates in the audio range, from 20 Hz to 20 kHz, the vibrational energy is transmitted to the entire film.

The performance of the diaphragm in a speaker is usually expressed in terms of acoustic velocity and internal loss. The higher those are, the better. Currently, the diaphragms used in speakers are often paper cones. In the audio range, compared with a paper cone, our film has the same acoustic velocity and 2-3 times the internal loss. So, the film itself isn't prone to producing sound, which means it delivers very high audio quality.


So, what's next?:

In the future, it might be possible to make a retractable, thin, flexible display, by using this film in combination with an OLED display



[Link: DigInfo TV]
 
Share



You might also like...


Advanced 1200V IGBTs from STMicroelectronics [News]

Energy by fusion is only 20 years away [Science]

Kids Shooting Laser Beam at Police Helicopter got Arrested [News]

Driver Reference Designs for CREE LED Bulbs [News]

New Glass Layer to Correct Bad Vision on Monitors [Technology]

Scientists use a modified beer cooler to calibrate $$$ instruments! [Science]

New Zero-Drift Op Amps from STMicroelectronics [News]

Warp Speed Ship Design by NASA Employee [News]


<< Back to INDEX



Comments

  Name

  Email (shall not be published)

  Website

Notify me of new posts via email


Write your comments below:
BEFORE you post a comment:You are welcome to comment for corrections and suggestions on this page. But if you have questions please use the forum instead to post it. Thank you.


      

No comment yet...

Be the first to comment on this page!












 Contact     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS   

Site design: Giorgos Lazaridis
© Copyright 2008
Please read the Terms of services and the Privacy policy