Hardware, Software & the Internet of Things
June 23–25, 2015 • San Francisco, CA

POISED - parallel optical imaging system device

Hannah Mishin’s project falls within a very specific niche of objects. It is about computation, cameras, and how people interact with technology. She is currently building an object that captures images using one laser, and in real time another laser renders those images. It is a tool, a temporal photography instrument, that captures and projects images simultaneously; but is neither photography nor videography.

This project is a laser scanner, a device that precisely and immediately extracts and reflects two separate laser beams in order to create two distinct raster scans: rectangular patterns generated by a precise x and y axis.

There are two major facets to Hannah’s laser scanner: circuits and fabrication. The circuit receives reflected light off the camera raster from a photosensitive component. This component sends readings to an amplifier that increases the gain of the signal and modulates the current to the projector raster, altering the brightness of the laser. The success of this circuit is dependent upon the sensitivity of the gain within that circuit and the synchronization of the physical objects within the module itself.

One of these raster scans is an input scan. It generates a pattern of light projected in front of it. This pattern contains an attached circuit that measures the amount of reflected light off subjects within the scan area, and directs it to the second laser. This second laser generates a second raster scan, which creates an image based on the information collected from the circuit. Thus this tool is both a camera and a projector. In real time it photographs and displays images simultaneously.

Please see this link (http://hannahmishin.com/blog/2014/10/25/laser-scanner-cameraprojector) for a detailed description of the research and prototyping phases of this project.