[Project] CEL.

The design challenge of this project was: “Can we increase work efficiency in the work-home context by using light as the medium?” Our process started with literature research in order to define the design space:

Through everyday choices and practices, we each work toward enacting, reinforcing and modifying our ideas of ‘work’ and ‘home’ and how they should relate. This process – the integration-segmentation continuum – is how people define the mental divide between work and non-work related activities. Christena Nippert-Eng / Sociologist / 2015

Research has proven that lighting conditions in the work-setting can affect employee’s perception, cognition and affective states (Hawkes et al., 2010), with LED lighting creating a positive relation to the motivation of users.

“Indeed lighting serves the primary purpose of aiding human vision, and variation in factors such as light output and color temperature have been shown to affect operator perception, cognition and mood state” (Hygge and Knez, 2001).

C-E-L, the abbreviation of Coordinated Environmental Lighting, is a light interface that wirelessly integrates 3 major parameters: activities,duration & intensity. In doing so, C-E-L enhances user discipline through light conditioning, and balances the home vs work continuum with a tangible interface rather than an application that distracts the user while focussing on their primary task.



Figure [1] Brainstorming and clustering ideas.


Figure [2] User testing, wizard of oz method.


Figure [3] Illustration of CEL.




Figure [4] Me working on the design.


Figure [5] Explorative sketches of CEL.


Figure [6] Abstract diagram of the system behind CEL.

Figure [7] RTD process graph(Frens et al)

Figure [8] Final verdict.