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

Luminous Key Chain / illumination

Luminous Key Chain
Luminous Key Chain

Nyctalopia always have trouble unlocking the door at night, especially when they are holding too much stuff and do not have their hands free. Luminous Key Chain is designed to help people accomplish the whole action of unlock only by one hand, and provide light source at the same time.
luminous key chain is portable and lightweight, which includes LED and a sensitive switch that connect to a button cell. When users want to unlock the door, they only need to hold the key by one hand, shake it up and down quickly, the inertia is forceful enough to turn on the sensitive switch, then the LED will light up and illuminate the key hole.


Tsinghua University

Tsinghua University
Academy of Art and Design
Beijing, China

Yu Zhefan,
Tsinghua University