ShadowLamp: An Ambient Display with Controllable Shadow Projection using Electrochromic Materials.

In this paper we present ShadowLamp, a lamp concept supporting controllable shadow casting for displaying ambient information. The concept uses electrochromic displays to mask light and thereby allow switching of projected shadows. We implemented a prototype in a hexagon frame with six separately controlled LEDs compartmentalized to casts shadows in 60° angles. Alongside the LEDs, each compartment contains an electrochromic display for shadow control. As a use case we fabricated displays for a children's book and used them to change the shadows as the story progress. The displays and LEDs are controlled by a Bluetooth connected Android application.

[1]  Jonna Häkkilä,et al.  In the candle light: pervasive display concept for emotional communication , 2016, PerDis.

[2]  Barbara A. Wasik,et al.  Beyond the Pages of a Book : Interactive Book Reading and Language Development in Preschool Classrooms , 2010 .

[3]  John Seely Brown,et al.  The coming age of calm technolgy , 1997 .

[4]  Claes G. Granqvist,et al.  Handbook of inorganic electrochromic materials , 1995 .

[5]  Peter J. Denning,et al.  Beyond calculation - the next fifty years of computing , 1997 .

[6]  Tim Claudius Stratmann,et al.  Make me move at work! An ambient light display to increase physical activity , 2013, 2013 7th International Conference on Pervasive Computing Technologies for Healthcare and Workshops.

[7]  Antonio Krüger,et al.  ambiPad: enriching mobile digital media with ambient feedback , 2014, MobileHCI '14.

[8]  Hiroshi Ishii,et al.  ambientROOM: integrating ambient media with architectural space , 1998, CHI Conference Summary.

[9]  Christopher J. Lonigan,et al.  Accelerating language development through picture book reading: replication and extension to a videotape training format , 1994 .

[10]  Tek-Jin Nam,et al.  Gleamy: An Ambient Display Lamp with a Transparency-Controllable Shade , 2016, TEI.

[11]  Jonna Häkkilä,et al.  Candle Shadow Display for Ambient Communication Delivery , 2016, Conference on Designing Interactive Systems.

[12]  Lisa G. Cowan,et al.  ShadowPuppets: supporting collocated interaction with mobile projector phones using hand shadows , 2011, CHI.