{"paper":{"title":"Focus-Induced Photoresponse: a novel optoelectronic distance measurement technique","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det","physics.optics"],"primary_cat":"physics.app-ph","authors_text":"Anke Handreck, Christian Lennartz, Christian Schildknecht, Christoph Lungenschmied, Erwin Thiel, Ingmar Bruder, Oili Pekkola, Patrick Schindler, Peter Fejes, Peter Schillen, Robert Send, Sebastian Valouch, Stephan Irle, Wilfried Hermes","submitted_at":"2017-07-28T19:46:28Z","abstract_excerpt":"We present the Focus-Induced Photoresponse (FIP) technique, a novel approach to optical distance measurement. It takes advantage of a widely-observed phenomenon in photodetector devices: a nonlinear, irradiance-dependent photoresponse. This means that the output from a sensor is dependent on the total number of photons incident and the size of the area in which they fall. With a certain arrangement of sensor and lens, this phenomenon will cause the output of the sensor to change based on how far in or out of focus an object is. We call this the FIP effect. Here we demonstrate how to use the FI"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.05000","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}