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

Polite Lock / Door Lock

Polite Lock
Polite Lock

With the accelerated pace of modern life, people often need to freely switch between various states. They don’t want to be interrupted in some condition, such as meeting, business trip, travel, or rest. Polite Lock is a new type of fingerprint locks that particular designed for businessmen’s residence and working space, which can reflect the current status of the host. By swinging the handle downward, the status icons on the circular display can be switched, so that the visitor can clearly know the state of the owner at that time. This greatly enhances the work efficiency.


Dalian Nationalities University

Dalian Minzu University
Dalian, China

Jiale Hou,
Dalian Minzu University

Yu Chen,
Dalian Minzu University

Deyu Ma,
Dalian Minzu University

Anran Xuan,
Dalian Minzu University

Go to profile