Newsgroups: comp.robotics
Path: brunix!uunet!kithrup!hoptoad!pacbell.com!sgiblab!darwin.sura.net!uvaarpa!murdoch!holmes.acc.Virginia.EDU!jbb
From: jbb@holmes.acc.Virginia.EDU (Joseph B. Burch)
Subject: camera autofocus mechanisms
Message-ID: <1992Oct27.182416.3970@murdoch.acc.Virginia.EDU>
Originator: jbb@holmes.acc.Virginia.EDU
Sender: usenet@murdoch.acc.Virginia.EDU
Organization: University of Virginia
Distribution: na
Date: Tue, 27 Oct 1992 18:24:16 GMT
Lines: 41

I'd like to obtain technical and source information on the autofocus            
mechanisms found today in certain camers with the idea of adopting              
them for ranging applications in robotics. There are at least two               
types that I'm aware of, one acoustic and the other optical.                    
                                                                                
a) Has anyone tried to use either of these in robotics applications?            
                                                                                
b) How accurate are they?                                                       
                                                                                
c) How does the optical version work?                                           
                                                                                
d) Short of buying a camera and stripping it down, does anyone know of          
   a source for these devices.                                                  
                                                                                
You can reply privately to my address 'jbb@virginia.edu' if you pre-            
fer. I'll post a summary to the group.                                          
                                                                                
Thanks in advance,                                                              
                                                                                
Joseph Burch                        jbb@virginia.edu                            
Computer Systems Engineer                                                       
ITC, University of Virginia                                                     
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
