Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Color-changeable Window / Bus Window

Color-changeable Window
Color-changeable Window

Bus is an important transportation tool for the public. But the current bus window is too transparent in sunny day, especially in summer. Although curtains can be used for shading, it also blocks the beautiful sight outside. The Color-changeable Window may change its transparence according to the strength of sunlight. The silver bromide and copper dichloride particles react by light, causing the glass changing between light and dark color. The dark color in strong sunlight blocks light into the bus, without blocking the sight from inside out. The weak light outside makes it to recover to transparent state again.


Dalian Nationalities University

Dalian Minzu University
Dalian, China

YunLong Wang,
Dalian Nationalities University

Hui An,
Dalian Nationalities University

Xi Li,
Dalian Nationalities University

Chunyan He,
Dalian Nationalities University

Go to profile