To add vertical scanning to the 360 degree horizontal scanning, rock the laser diode (used here as a light detector rather than emitter) back and forth while always pointing it directly at the same place on the mirror. This rocking motion can be easily (and cheaply) implemented with a worm gearn driven large plastic cam to lever actuator attached to the other side of the motor's drive shaft. To avoid breaking the 360 degree view of the system, mount the sensor on a rocker attached to a clear plastic "bubble" covering the bottom of the system. Use a reflective strip on the sensor mount or a mechanical wiper on the worm gear end to provide an indexing pulse. The system microcontroller will wait a specified period of time before capturing signals from the sensor on each revolution in order to select a portion of the total visable area. This data will be forwarded to the host system via a high speed infrared link.
http://www.sci.kun.nl/hfml/fingertip.html
http://scitoys.com/scitoys/scitoys/magnets/suspension.html
file: /Techref/idea/mscan/index.htm, 1KB, , updated: 2004/6/9 11:32, local time: 2024/8/31 19:51,
18.117.93.145:LOG IN
|
©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions? <A HREF="http://www.piclist.com/techref/idea/mscan/index.htm"> mirror scanning low cost low duty camera</A> |
Did you find what you needed? |
![]() o List host: MIT, Site host massmind.org, Top posters @none found - Page Editors: James Newton, David Cary, and YOU! * Roman Black of Black Robotics donates from sales of Linistep stepper controller kits. * Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters. * Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated! * Contributors: Richard Seriani, Sr. |
Welcome to www.piclist.com! |
.