Simulated Shadows
For this project I created an interactive art piece that uses layered polarising filters and servos to create an intriguing light effect. The servos rotate the filters to increase or decrease the amount of light let through. The 15 filters are arranged in a long, zigzagging line with each servo controlled by an ultrasonic sensor beneath. There are multiple modes that produce different effects which are:
RIPPLE: If the user directly covers one of the sensors with their hand, a ripple effect will emanate out from that filter
SHADOW: Each servo reacts directly to the readings from its sensor, blocking out more light as the user approaches
DANCE: The servos move in a predetermined way, creating fun and interesting patterns. In this mode there is no user intereaction.
The inspiration for this project came from my background in physics and a desire to use that connection to create an interesting and engaging piece. Originally I drew ideas from the grid-like examples shown, but ended up creating the piece in a long line instead. This arrangement of filters was chosen, partially because it would then allow each filter to be controlled by a distinct sensor, but also because of an idea of the context in which the piece could be used. Imagine a large office building with windows spanning the entire ground floor. This piece could be used in such a building for privacy of the occupants whilst not completely restricting the light coming in. If people were to approach the window, the filters would rotate and block their view, but otherwise the people inside would be able to see out perfectly. I therefore decided to rearrange the filters into a long, zigzagging line which the user could walk down, creating a shadow effect as they went.
‘Simulated Shadow’ is a playful, interactive piece intended to intrigue the viewer by taking a scientific principle and viewing it from an artistic perspective. The sculpture uses an Arduino to direct fifteen motors controlled by motion detected by ultrasonic sensors. Attached to each motor are two circular linear polarising films, one of which is controlled by the rotation of the motor whilst the other is fixed in place. As the user interact with the piece the filters rotate, controlling how much light is let through. The long row of these filters allows the user to walk along, leaving a shadow behind them.
This piece was exhibited at the Bridges Conference 2024 Exhibition of Mathematical Art, Craft, and Design