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aperture
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A project by Frédéric Eyl and Gunnar Green.
full documentation website
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aperture is a facade installation with interactive and narrative display modes. Consisting of a grid of iris diaphragms, the facade‘s surface has changing apertures. The variation of the opening diameters creates a variable opacity of the surface, this serves to create both dynamic imagery as well as offering new channels for communication and visibility between the inside and the outside of the facade. Concept and prototype were conceived through January and February 2005
prototype and visulization of real life situation (film/.mov)
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An iris diaphragm is an aperture with a variable opening diameter. The majority of instances of irises can be found in aperture settings in camera lenses as a means of regulating depth of field and the amount of light that is exposed by either film or sensor in capturing an image.
aperture, being an array of iris diaphragms, is part of a building‘s facade. Composed of single aperture-modules with receptor (LDR—light dependent resistor) and actuator (servo-motor/iris diaphragm), aperture acts like an autonomous skin, which is also capable of precise external control. Visual information is transmitted from the inside of the building to the outside, the surface permeability is regulated when the aperture‘s opening diameters are changed. Each of the apertures in the array can be shown to represent a pixel of an image.
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Set to interactive mode, each single aperture and all the apertures as entity »see« what happens on the inside of the facade and react accordingly: like the human eye‘s iris and iris diaphragms in objectives, they react to light, widening and contracting with corresponding increases and decreases in intensity of incoming light. If no human activity is to be distinguished on the inside, a »memory« mode recalls images and abstract animations captured throughout the day and displays them.
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Analogously to the process of taking a photograph, people standing in front of the wall are exposed to the aperture grid, just like to photographic film. The duration of the image fading out, as the apertures close, is itself a reflection of how long a person has been standing in front of aperture.
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Analogously to motion photography as initially developped by Eadward Muybridge the single phases of a movement—a person walking along the intelligent surface—the single phases of the movement are captured and displayed by aperture.
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Just like in film, the single apertures in the grid react directly to varying intensities of incoming light by altering their diameters correspondingly. The apertures open and close, imitating the movement of a gesticulating person standing in front of them.
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