The interactive teaching installation “Diorama”
The idea „Diorama“ is inspired by frequently used presentation modes from museum environments, where 3D elements are smartly combined with painted background images.
Two lead motives dominate the concept. The motto “water is life” is derived from a required action (working on a water pump) which indicates that mankind has an obligation to take care of the environment. People must learn to read the signs – dramatically spoken: cries for help – sent by nature and to act adequately. The background image delivers the second message, i.e. nature and technology are complementary and cannot be separated any more. This is represented by a realistic display on the right side of the installation, in this case a rather archaic technology (hand pump) embedded in a picturesque landscape. The other side shows stylized flowers – classical representatives of nature – where the core elements (blossoms, petals) are realised by high tech products such as OLEDs.
The installation measures approximately 1.65 m x 3.50 m x 0.40 m. As indicated above, the backplane image exhibits a transition of content from the right to the left side. On the right side a photorealistic rural idyll is shown (e.g. with an old small farmhouse), on the left side an alienated minimalistic flower field is presented. The two scenes are not sharply separated in the middle, but have a smooth transition.
In front of the right side of the picture an old hand pump is situated which can deliver water into a small channel. This channel has several windings and finally leads to the field ground on the left side where the flowers are located. The channel itself has a wooden appearance in the right area changing to transparent acrylic material on the left side. The channel is equipped with lengthy OLEDs (e.g. RDW-046).
The channel hits flat ground of grass green colour where three to four smooth „hills“ form the sockets of large flowers. The flowers have individual design (size, shape), each one has a caulis made from slighty green coloured acryl and which is also equipped with three to five lengthy OLEDs. The flowerheads can consist of one or three round shaped OLEDs (e.g. CDW-030). It is also realised by an acrylic housing. Each flowerhead is surrounded corona-like by six additional OLEDs which form the petals. They can be created from different OLED formats such as square (SDW-058), circle (CDW-030) or rectangular (RDW-046) products.
The flowers are free to move. By servomotors a rotation around the caulis axis is possible in a range of +/- 45°. The base position for the “line of vision” of the flowers is not normal to the installation plane, but is tilted approximately 20° towards the pump. The flowerhead can be bowed and lifted, the petals can move frontwards, thus closing the blossom.
In the middle area of the installation there is space for one or two stylized ferns which are designed from rectangular OLEDs in a similar manner than the flowers, but not moveable. Their roots have contact to the water channel.
The installation is based on a 10 cm high socket incorporating a water reservoir. It can be filled via the drain in the flower field. The reservoir exhibits a window beneath the hand pump where the water can be illuminated with blue LEDs.
A hidden camera in the middle bottom area of the instaIlation offers the possibility to track the movements of people in close vicinity.
In the initial state all the flowerheads are bowed down and the blossoms are closed. The attention of persons passing by must be drawn. After the camera system has recognised such a person one flower is orienting itself towards the person and follows his movements. The petals start a slow movement and the OLEDs in the flowerhead glow weakly in a pulsed mode. The sound of the servomotors is an additional stimulus to provoke a reaction of the person. When the camera system detects that the person is indeed approaching the installation, the water reservoir starts to twinkle with blue light. This is actually the signal for the person to operate the hand pump.
Once pumping, sensors will detect the flow of water and the OLEDs in the channel are switched on as a blinking running light. When the water passes the ferns they will be dimmed to full brightness. When the water reaches the flower field, the flowers will be operated under full brightness as well. The light runs up the caulis, the flowerheads are lifted to maximum height and the petals are opened to maximum level. All the flowers turn into the direction of the person at the pump. When the water flow stops everything turns back to the initial state. However, the interactive flower remains in a weak blinking mode and is still oriented towards the person. Only when the person leaves the area of the installation by more than 2 m, also the last flower switches back to the initial state. The intention is to stimulate the person to work on the pump for a longer time (> 15 s) because pumping just once or twice does not achieve the full lighting effect.
Designer: Mario Lukas, Christoph Emonds, Daniel Adams, OSRAM OLED Applications-team
Pictures: axis GmbH & Co. KG