Browse Prior Art Database

Optical performance comparator (USH0000220) Disclosure Number: IPCOM000000220D
Original Publication Date: 1987-Feb-03
Included in the Prior Art Database: 2008-Mar-23

Publishing Venue

US Statutory Invention Registration (SIRs)

Related People

Vogel, E. Michael [+details]
Other Related People:

Related Documents

Patent/Patent Application:
USH000220 US06/845674 [+details]


Improved measurement of optical material degradation is provided by a comator utilizing a vidicon focused upon an illuminated white contrast target card. The optic under test is positioned between the vidicon and the target. The output of the vidicon as it scans the card is compared with the output for an undamaged optic.