PNEUMATIC MIRROR I
a mirror which automatically orients itself toward the viewer’s face and deforms to different curvatures based on their proximity. This mirror is a flexible membrane stretched over a chamber with dynamically controlled pressure. As this pressure is regulated, the mirrored surface deforms to different curvatures from convex to concave, enlarging the reflection of the viewer’s face as they move farther away and shrinking their reflection as they approach.
Reflective mylar, blower motors, bass drum shell, kinect, computer vision, stepper motor, custom software, microcontroller, various electronic components.
MOIRÉ PATTERN GENERATOR III
a permanent installation of an 8-foot diameter rotating skylight moiré at A Ship in the Woods gallery in Escondido, CA. One layer of perforated opaque plastic rotates on top of another static layer to create a changing moiré pattern that magnifies the pattern of perforations to different degrees as the two layers go in and out of alignment.
Wood, motor, perforated plastic sheeting
HARMONIC SKEW ZOETROPE
an apparatus fabricated during a residency at SparkFun electronics in Boulder, CO. Using a similar phenomenon as seen in the rolling shutter effect, a line laser reflecting off of a rotating mirror progressively illuminates on an object which is moving in an orbital pattern. Due to the changing position of the object and the time delay between illuminating the top and bottom of the object, it appears to distort in a spiral.
Line laser, rotating mirrored prism, eccentric motor, power supply, steel
a device which uses physical vibration to distort the feed of an analog NTSC camera. A small video camera is mounted onto a speaker vibrating at a frequency near the 29.97Hz framerate of NTSC video. The frequencies of vibration and capture rate interfere, causing a phasing compression and expansion of the scan lines resulting in an undulating distortion of the video feed.
Speaker cone, amplifier, wood, microcontroller, camera, printed grid, CRT display
an installation that outputs the same information (three frequencies) for aural and visual observation. By increasing these frequencies beyond the flicker-fusion threshold of the retina, information that is easily perceived acoustically becomes inaccessible and disorienting visually. Three independent oscillators drive speakers as well as separate red, green, and blue lighting channels. As the frequencies go in and out of superposition, they manifest as beat frequencies in the audio and in phasing color mixtures that change faster than is fully perceptible, leading to illusory experiences of color and pattern.
LEDs, microcontrollers, potentiometers, speakers, amplifier, wood,