Hi Victor
It is OI-645 (OI for Optical Inspection)
https://portal.ipc.org/Purchase/ProductDetail.aspx?Product_code=ea182080-b586-db11-a4eb-005056875b22

There is a related resolution target with P/N IPC-OI-1951, based upon MIL-STD-150A (USAF 1951) mathematical standard.
The tool can be used to assess resolving power from human eye to 645 lp/mm.
http://www.precisionopticalimaging.com/

Chris

Chris Mahanna
Robisan Laboratory Inc.


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Wednesday, October 8, 2014 2:18 PM
To: [log in to unmask]
Subject: [TN] IPC-TM-650 section 2.2.2, Optical Dimensional; Verification

Fellow TechNetters:

   I will submit my initial inquiry once again.   During my search of IPC Standards I ran across this reference.   The above stated IPC DTD makes a reference to another doc, IPC-01-645.   I was not able to find a link for it.   Can anyone chime in with comments and/or suggestions on this task?

Victor,

From: Hernandez, Victor G
Sent: Wednesday, October 08, 2014 8:56 AM
To: TechNet E-Mail Forum ([log in to unmask])
Cc: Hernandez, Victor G
Subject: Filar micrometer calibration procedure with upright microscope

Fellow TechNetters:

   Can anyone chime in with comments and/or suggestions on this task?


Victor,


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