Rubbing apparatus with an even number of rubbing rollers with pi

Rubbing apparatus, apparatus for producing liquid crystal device

Rubbing-free (chiral) nematic liquid crystal display

Safety application of holographic material

Sandwich holographic disk construction with thin molded...

Sandwich reflection hologram

Scan lens and an optical scanner system incorporating two deflec

Scanning fiber optic holographic exposure and feedback system

Scatter noise reduction in holographic storage systems by signal

Scatter noise reduction in holographic storage systems by speckl

Scatter noise reduction in holographic storage systems by two-st

Scheme capable of providing gain and thresholding to the...

Screen for front laser projection

Screen for laser rear projection

Screens to be used with a system for the magnification and...

Sculptured light diffuser for enhancing brightness and uniformit

Sealing structure of liquid crystal injection holes in liquid cr

Secure holographic images on paper

Secure optical identification means and method with enhanced var

Secure optical identification method and means