Foreword. Series Editor's Foreword. Preface. 1. Liquid crystal physics.* Introduction.* Thermodynamics and statistic physics.* Orientational order.* Elastic properties of liquid crystals.* Response of liquid crystals to electro-magnetic fields.* Anchoring effects of nematic liquid crystal at surfaces. 2. Propagation of light in anisotropic optical medium.* Electromagnetic wave.* Polarization.* Propagation of light in uniform anisotropic optical media.* Propagation of light in cholesteric liquid crystals. 3. Optical modeling methods.* Jones matrix method.* Mueller matrix method.* Berreman 4x4 method. 4. Effects of Electric field on Liquid Crystals.* Dielectric interaction.* Flexoelectric Effect.* Ferroelectricity in liquid crystals. 5. Freedericksz transition.* Calculus of variation.* The Fredeericksz transition: statics.* The Freedericksz transition: dynamics. 6. Liquid Crystal Materials.* Introduction.* Refractive indices.* Dielectric constants.* Rotational Viscosity.* Elastic constant.* Figure-of-merits.* Refractive index matching between liquid crystals and polymers. 7. Modeling of liquid crystal director configuration.* Electric energy of liquid crystals.* Modeling electric field.* Simulation of liquid crystal director configuration. 8. Transmissive liquid crystal display.* Introduction.* Twisted nematic cells.* In plane switching (IPS) mode.* Vertical alignment (VA) mode.* Multi-domain Vertical Alignment (MVA) Cells.* Optically compensated bend (OCB) cell. 9. Reflective and Trasreflective display.* Introduction.* Reflective liquid crystal displays.* Transflector.* Classification of Transflective LCDs.* Dual-cell-gap Transflective LCDs.* Single-cell-gap Transflective LCDs.* Performance of transflective LCDs. 10. Liquid crystal display matrices, drive schemes and bistable displays.* Segmented displays.* Passive matrix displays and drive scheme.* Active Matrix Displays.* Bistable ferroelectric liquid crystal displays and drive scheme.* Bistable nematic displays.* Bistable cholesteric reflective display. 11. Liquid crystal/polymer composites. * Introduction.* Phase separation.* Scattering properties of liquid crystal/polymer composites.* Polymer dispersed liquid crystals.* Polymer stabilization liquid crystals.* Displays from liquid crystal/polymer composites. 12. Tunable liquid crystal photonic devices. * Introduction.* Laser beam steering.* Variable Optical Attenuators.* Tunable-Focus Lens.* Polarization-Independent LC Devices. Index.

Fundamentals of Liquid Crystal Devices

A near-to-eye display system for forming an image as an illuminated region on a retina of at least one eye of a user is disclosed. The system includes a source of modulated light, a proximal optic positionable adjacent an eye of the user to receive the modulated light. The proximal optic has a plurality of groups of optically redirecting regions. The optically redirecting regions are configured to direct a plurality of beams of the modulated light into a pupil of the eye to form a contiguous illuminated portion of the retina of the eye. A first group of the optically redirecting regions is configured to receive modulated light from the source and redirect beams of the modulated light into the pupil of the eye for illumination of a first portion of the retina. A second group of the optically redirecting regions is configured to receive modulated light from the source and redirect beams of the modulated light into the pupil of the eye for illumination of a second portion of the retina.

Near to eye display system and appliance

A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security. The secure data parser may be used to protect data in motion by splitting original data into portions of data, that may be communicated using multiple communications paths.

Secure data parser method and system

A sensor system (1000) comprises a tag (100). The tag comprises at least one radio-frequency chip (130) having a memory element, an antenna (140) disposed in electrical communication with output terminals of the chip and a non-conductive coating (115) disposed upon a surface of the tag. The non-conductive coating covers the chip and defines a perimeter. The perimeter is disposed over and exposes the antenna.

Radio frequency identification tag

The invention provides a microfabrication process which may be used to manufacture a MEMS device. The process comprises depositing one or a stack of layers on a base layer, said one layer or an uppermost layer in said stack of layers being a sacrificial layer; patterning said one or a stack of layers to provide at least one aperture therethrough through which said base layer is exposed; depositing a photosensitive layer over said one or a stack of layers; and passing light through said at least one aperture to expose said photosensitive layer.

A method for fabricating a structure for a microelectromechanical systems (mems) device

Apparatus for capturing and printing images on a receiver sheet includes a camera for electronically storing an image of a subject and having a display for displaying such stored image and including alignment structure and an ink jet printer, an ink jet print head including a plurality of colored inks and a structure for providing relative movement between the ink jet print head and the receiver sheet. The ink jet print head further includes coupling the ink jet printer to the alignment structure to provide a unitary camera printer unit. Image signals are transferred to the ink jet print head to cause the ink jet print head to deliver ink to a receiver sheet to form an image corresponding to the stored image on the receiver sheet.

Electronic camera and integral ink jet printer

In an electronic camera including optics for focusing an image of a subject at an image plane; an area image sensor disposed at the image plane for receiving the image subject and producing a digital image representing the subject; storage memory coupled to the area image sensor for storing the digitized image of the subject; and a moveable display being moveable between a user viewable position to a print position and adapted to be selectively coupled to the storage means for displaying an image of the subject. The camera further includes an optical printer being adapted to be optically coupled to the display when in its print position for producing a hard copy output of the subject represented by the display; and logic and control circuitry being responsive to the display moving to its print position for deenergizing the display after an image to be printed is selected and for reenergizing the display means when in its print position.

Electronic camera having a printer

An attachable printer for use with a electronic camera having an image sensor which captures an image of a subject onto the image sensor is disclosed. The camera includes electronics coupled to the image sensor for storing a digital image of the subject; a display; and circuitry coupled to the display and responsive to the stored digital image and effective in a first condition for producing a correctly oriented image on the display and in a second condition for producing a mirror image on the display. The printer is effective when connected in operative relationship to the display and having a moveable carriage, and a scanner and an ink jet printhead mounted on the carriage, and being arranged so that as the carriage moves, the scanner scans the mirror image on the display and produces image signals; and the ink jet printhead being responsive to the signals produced by the scanner for producing a correctly oriented image onto the receiver sheet.

Scanning ink jet printer for electronic displays

Apparatus for capturing and printing images on photosensitive sheets includes an electronic camera having a display; and an image sensor means for producing a digital image of a subject. In response to the digital image, the electronic camera displays an image on the display. The printer includes a light tight storage structure for receiving the photographic sheets. The printer receives the electronic camera and includes optics for focusing the image on the display along a single optical path onto a photosensitive sheet at an exposure position. The printer further includes a shutter member having a shutter aperture for controlling the aperture to cause light from the display image to illuminate the photosensitive sheet.

Printer receiving electronic camera

Apparatus for printing images from a display included within an image capture device including a display for producing an image captured by the image capture device; a printer which includes photosensitive media which is adapted to be illuminated by an light image from the display; and a structure for controlling the display so as to produce a color image which is color balanced. The apparatus presents a photosensitive medium to be illuminated by the color balanced image.

Stanley W. Stephenson

Papers

Electronic camera and integral ink jet printer

Electronic camera having a printer

Scanning ink jet printer for electronic displays

Printer receiving electronic camera

Controlling display useable in printers