Optical: systems and elements – Absorption filter – Movable in or out of optical path
Reexamination Certificate
2005-05-10
2010-11-16
Chang, Audrey Y (Department: 2872)
Optical: systems and elements
Absorption filter
Movable in or out of optical path
C359S888000, C359S887000, C359S890000, C359S891000
Reexamination Certificate
active
07835092
ABSTRACT:
A flexible medium for a scrolling color changer and method of making thereof. The medium is made by applying an ink using a Meyer Rod which has varying cell lengths along its length. This leaves varying size cells of ink at different locations along the length of the medium. The ink has special characteristics whereby its evaporation rate and viscosity are carefully controlled. The viscosity is such that an amount of levelling will occur will be equal to the distance between any cells, but that cell to cell levelling will not, in general, occur.
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E.A. Apps., “Inks for the Major Printing Processes”, Leonard Hill Pub., pp. 86-87 & 266-267 (1963).
C. Finley, “Printing Paper and Ink”, Dewler Publishers, pp. 222-231 & 248-251 (1997).
Chang Audrey Y
Production Resource Group Inc.
The Law Office of Scott C. Harris, Inc.
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