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

Light clock / public facility

Light clock

The sun rises from the east and goes down west. The angle of incidence of the sun changes accordingly. The different angles of the hole allow sunlight to pass throuth at a particular time, projecting onto the ground an image in which information is conveyed. The sunlight projected onto the ground can tell people the approximate time.


Jiangnan University

Jiangnan University
Wuxi, China


Jiangnan University

Jiangnan University
Wuxi, China

Meng Chen Jiadi Ju Simeng Cao Yang Gu