Matches 1 - 11 out of 11


Match Document Document Title
US20080111930 LIQUID CRYSTAL FILTER WITH TUNABLE REJECTION BAND  
An optical wavelength filter uses birefringence and polarization to discriminate and block a wavelength stop band. Birefringent elements, each having a fixed retarder and a liquid crystal, are...
US20080198280 Light Module for Producing Light With a Scattering Pattern that is Electrically Variable and Use thereof as Multiple Purpose Light  
The invention provides a light module (1) arranged to produce a beam of light (25) with a scattering pattern that is electrically variable. The module comprises a light source (2) arranged to...
US20100103335 POLARIZATION SELECTIVE SCATTERING SECURITY DEVICE AND METHOD FOR MANUFACTURING THE SAME  
A polarization selective scattering security device comprising a printed patterned birefringent matrix of LCP polymer comprising a dispersed phase and optionally one or more additives, wherein the...
US20090290079 DISPLAY, INSTRUMENT PANEL, OPTICAL SYSTEM AND OPTICAL INSTRUMENT  
A multiple depth display provided for displaying images at different depths comprises a single display device (61), for displaying all of the images. An optical system (62, 63, 64) is disposed in...
US20090195715 FLAT TOP TUNABLE FILTER WITH INTEGRATED DETECTOR  
A free space tunable filter produces a passband output as a result of sequential processing by an array of narrowband tunable filters (NBTFs) each tuned to a slIghtly different frequency. The...
US20060038929 Tunable spectral imaging filter configured for UV spectral ranges  
A wavelength bandpass filter for chemical imaging and similar uses is configured to minimize absorption in ultraviolet wavelengths and arranged in a Solc, Lyot or similar arrangement of stacked...
US20060262396 Optical diplexer with liquid crystal tunable waveplate  
An optical diplexer having a birefringent crystal for providing substantially a whole number of wavelength retardation to first optical energy having said first polarization type, and having a...
US20110001895 DRIVING MECHANISM FOR LIQUID CRYSTAL BASED OPTICAL DEVICE  
An optical device with liquid crystal (LC) cells for conditioning the polarization of incident light includes a drive unit for the LC cells that employs a digital technique. According to this...
US20100315567 LIQUID CRYSTAL BASED BROADBAND FILTER FOR FAST POLARIZATION IMAGING  
A liquid crystal based broadband filter and imaging system for analyzing the polarization state of radiation. The filter includes four elements: a quarter wave plate; a 45° polarization rotator; a...
US20120257130 Tunable Wavelength Filter  
A wavelength filter based on a symmetric PLC circuit comprising an MZ filter-based demultiplexer, a waveguide resonator, and an MZ filter-based multiplexer is presented. The wavelength filter is...
US20050243225 Projector imaging apparatus with reflective mixed-mode twisted nematic liquid crystal panel  
An optical apparatus comprises a reflective liquid crystal (LC) panel, and an optical device. The LC panel includes a twisted-nematic (TN) LC material, wherein one mode of the LC material includes...

Matches 1 - 11 out of 11