Inventor
BERESNEV LEONID
DE18 patents
Patents
18 patentsUS6748081B1Jun 8, 2004
Quantum cryptography system for a secure transmission of random keys using a polarization setting method
DEUTSCHE TELEKOM AG23 citations91
US6331910B1Dec 18, 2001
Arrangement and method for electrically controlling the intensity of unpolarized light
DEUTSCHE TELEKOM AG20 citations89
US6636278B1Oct 21, 2003
Device for the local attenuation of the light intensity in the field of vision of a light-sensitive monitoring device
DEUTSCHE TELEKOM AG13 citations84
US7649610B1Jan 19, 2010
Method and device for reducing speckle formation on a projection screen
DEUTSCHE TELEKOM AG18 citations83
US6282333B1Aug 28, 2001
Method and device to compensate for polarization mode dispersion in an optical transmission link
DEUTSCHE TELEKOM AG15 citations81
US6947193B1Sep 20, 2005
Optical phase modulator
DEUTSCHE TELEKOM AG9 citations73
US6031588AFeb 29, 2000
Ferroelectric liquid crystal device for local reduction of light intensity in the visual field
DEUTSCHE TELEKOM AG13 citations71
US6338882B1Jan 15, 2002
Process for applying a light-blocking layer between a photoconducting layer and a mirror when manufacturing an optically addressable spatial light modulator
DEUTSCHE TELEKOM AG7 citations69
US6563980B1May 13, 2003
Method and device for spectral level balancing in wavelength division multiplex multi-channel systems
DEUTSCHE TELEKOM AG7 citations68
US6914647B1Jul 5, 2005
Electro-optical light modulator
DEUTSCHE TELEKOM AG4 citations60
US6181407B1Jan 30, 2001
Electro-optical material having a lamellar liquid crystal structure
DEUTSCHE TELEKOM AG4 citations58
US6952296B1Oct 4, 2005
Method and device for forming the intensity profile of a laser beam
DEUTSCHE TELEKOM AG4 citations56
US6649087B1Nov 18, 2003
Liquid crystalline materials for optical phase modulation
DEUTSCHE TELEKOM AG3 citations55
US5833833ANov 10, 1998
Method of preparing a pyroelectric mixture and pyroelectric device
DEUTSCHE TELEKOM AG5 citations53
US7468827B2Dec 23, 2008
Device for generating adding and subtracting digital sequences of optical pulses and method for secure transmission of information
DEUTSCHE TELEKOM AG0 citations51
US7050213B2May 23, 2006
Method and device for attenuating light as a function of intensity
DEUTSCHE TELEKOM AG0 citations48
US7426070B2Sep 16, 2008
Method and device for attenuating light as a function of intensity
DEUTSCHE TELEKOM AG0 citations45
US7769300B1Aug 3, 2010
Reducing the distortion of optical pulses caused by polarization mode dispersion in optical communication systems
DEUTSCHE TELEKOM AG0 citations37