Optical security component

Optical sensor based on surface electromagnetic wave...

Optical shutter

Optical spectrum analyzer having tunable interference filter

Optical structural element, method for the production of a layer

Optical substrate and antireflective film

Optical switching device

Optical system for eliminating ghost image in wide wavelength ba

Optical system with anti-reflection coating

Optical system with optical frequency discriminator

Optical tapped delay line

Optical thin film for optical element

Optical tunable filter and method for manufacturing the...

Optical tunable filter and method of manufacturing the same

Optical-interference type reflective panel and method for...

Optical-thin-film material, process for its production, and...

Optically coupled etalons and methods of making and using same

Optically variable element comprising a sequence of...

Optically variable element with partial transparent element

Optically variable security devices