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7394595 Lenslet array for beam homogenization  
Apparatus for homogenizing a laser beam includes a lenslet array. In some embodiments, the lenslets have a negative power. The lenslet array may include from 16 to 36 effective lenslets in some...
7375892 Ellipsoidal gapless microlens array and method of fabrication  
Ellipse-shaped microlenses focus light onto unbalanced photosensitive areas, increase area coverage for a gapless layout of microlenses, and allow pair-wise or other individual shifts of the...
7355794 Lenslet array for beam homogenization  
Apparatus for homogenizing a laser beam includes a lenslet array. In some embodiments, the lenslets have a negative power. The lenslet array may include from 16 to 36 effective lenslets in some...
7330315 Light-redirecting optical structures  
A plurality of microstructures is provided, with each microstructure having at least a first side and at least a second side terminating at a peak. At least some of the peaks can include an...
7309149 Prism sheet, backlight assembly and liquid crystal display device having the same  
A prism sheet, a backlight assembly having the prism sheet, and an LCD device having the prism sheet, the prism sheet includes a first surface, a second surface and a reflecting member. A light is...
7280278 Apparatus and method for manufacturing positive or negative microlenses  
A variety of structures and methods used to adjust the shape, radius and/or height of a microlens for a pixel array. The structures affect volume and surface force parameters during microlens...
7248411 Optical film with array of microstructures and the light source apparatus utilizing the same  
The present invention discloses an optical film with array of microstructures, having a first optical surface and a second optical surface for receiving an incident light. The optical film...
7248407 Microlens array sheet of projection screen, and method for manufacturing the same  
The present invention discloses a microlens array sheet of a projection screen including a lens sheet having a predetermined area, microlenses arranged on one surface of the lens sheet in the...
7230764 Differentially-cured materials and process for forming same  
A light-redirecting optical structure includes a first side and a second side, the first side including plurality of linear prisms having a visibly random shaped surface on the prisms and a...
7206132 Lenslet array for beam homogenization  
Apparatus for homogenizing a laser beam includes a lenslet array. In some embodiments, the lenslets have a negative power. The lenslet array may include from 16 to 36 effective lenslets in some...
7180664 Sheet for use for projection screen, light diffusion sheet and projection screen  
A light diffusion sheet or film including a plurality of unit lenses formed of a material having a refractive index N1, each unit lens having a trapezoidal cross-section. At least one between lens...
7167312 Beam shaping optics and module for a diode laser arrangement  
A beam shaping optical arrangement combines three incoming laser beams that are mutually laterally offset in two orthogonal directions (X and Y), including an incoming first central laser beam and...
7158307 Efficiently illuminating a modulating device  
An illumination method and system use a light source and illumination optics to illuminate a pattern generator. The illumination optics can include at least two devices. For example, if first and...
7092164 Lens array and image display apparatus of projection type  
A lens array capable of effectively converging light entering from a light source and constituting a liquid crystal device of a high contrast includes liquid crystal of a twisted nematic type...
7085061 SHEET SHAPED OPTICAL ELEMENT PACKAGE, A METHOD OF USE OF SHEET SHAPED OPTICAL ELEMENTS, A METHOD OF MANUFACTURING A SHEET SHAPED OPTICAL ELEMENT PACKAGE, AND A DEVICE FOR MANUFACTURING A SHEET SHAPED OPTICAL ELEMENT PACKAGE  
A sheet shaped optical element package including a base film, plural sheet shaped optical elements on the base film, and a cover film formed on the plural sheet shaped optical elements, the plural...
7033736 Structured screens for controlled spreading of light  
Structured screens for the controlled spreading, diffusion, or scattering of an incident beam are provided. The screens are composed of microstructures ( 1,2 ) whose configurations and distribution...
7012755 Use of a lens array to increase the contrast ratio produced by a LCoS microdisplay  
A lens array is placed over a cover glass of a pixel based LCoS display device. The lens array is situated so that an individual lens in the array corresponds to an individual pixel in the display...
7006295 Illumination system and method for efficiently illuminating a pattern generator  
An illumination method and system use a light source and illumination optics to illuminate a pattern generator. The illumination optics can include at least two devices. For example, if first and...
6890642 Surface formed lenses on voided polymer light diffuser  
Disclosed is a transparent polymeric diffusion film exhibiting at least 50% transmissivity containing a thermoplastic polymeric material with internal microvoids and containing a plurality of...
6862139 Rear projection screen, optical component thereof, and method for manufacturing the optical component  
A rear projection screen includes a first and second optical components. The second optical component includes a first surface on which a plurality of cylindrical convex portions are formed, and a...
6836368 Wedge plate type light guiding plate for front light and method for manufacturing the light guiding plate  
A light guiding plate guides light from a light source and irradiates the light onto a display portion. The light guiding plate has an incidence plane, an opposite end plane opposite to the...
6831786 Surface formed complex multi-layered polymer lenses for light diffusion  
Disclosed is an integral film comprising a base bearing a pattern of complex lenses on a surface thereof wherein the complex lenses comprise two or more distinct layers.
6822792 Sheet for use for projection screen, light diffusion sheet and projection screen  
Provided is a light diffusion sheet or film capable of preventing the reflection of an external light that has entered from a light emission surface and also capable of obtaining a high gain. Also...
6819497 Color separation and color synthesis optical system and reflection type projection display apparatus  
Disclosed is a color separation and color synthesis optical system provided between a light source portion and a projection optical system in a reflection type projection display apparatus, which...
6813406 Photonic switching apparatus for optical communication network  
A photonic switch for an optical communication network includes a matrix of actuator-mirror assemblies and a corresponding matrix of optical ports. A first one of the actuator-mirror assemblies...
6741394 Optical integrator, illumination optical apparatus, exposure apparatus and observation apparatus  
The present invention is aimed at providing a wavefront dividing type optical integrator which can yield a uniform illuminance distribution substantially over the whole illumination field formed...
6721102 Surface formed complex polymer lenses for visible light diffusion  
Disclosed is a transparent polymeric film having a top and bottom surface comprising a plurality of complex lenses on at least one surface thereof. Such a film is useful for diffusing light such as...
6707611 Optical film with variable angle prisms  
An optical turning film has a first surface including an array of prisms. The array has a plurality of first prisms, with each of the first prisms having a first prism configuration, and a...
6678019 LCD including light divergent element at front of display panel  
A transmission type liquid crystal display device includes: a liquid crystal display element including a pair of transparent insulating substrates placed to face each other with a gap therebetween,...
6666590 High brightness laser diode coupling to multimode optical fibers  
A system for coupling light emitted from a plurality of laser diodes to a single optical fiber provides increased pump light brightness to the optical fiber to provide increased power fiber...
6643068 Collimators and collimator arrays employing ellipsoidal solid immersion lenses  
An ellipsoidal solid immersion lens (ESIL) for use as a collimator for a waveguide. The ESIL has a refractive index n, an ellipsoidal surface portion defining a geometrical ellipsoid with...
6618027 Light modulator, light source using the light modulator, display apparatus using the light modulator, and method for driving the light modulator  
A light modulator is comprised of two unit devices each using surface plasmon generated at the interface between thin metal films respectively formed on prisms and an electro-optical material, and...
6600600 Projection screen and projection method  
A reflective projection screen has in a first aspect a plurality of reflective elements. The upper surface of the reflective elements is either coated or textured to interfere with reflection of...
6570706 Low energy source front projection screen for large screen pictorial displays  
A two element low energy source front projection screen for pictorially displaying upon a front face of the screen an image projected onto the front face from a projector comprised of a metallic...
6569671 Pattern exposure method, exposure device, formation of nucleic acid array, and formation of peptide array  
This invention provides a pattern exposure method which may be used for effectively preparing, for example, a DNA or peptide array with a lower cost and a device therefor. Specifically, the method...
6560026 Optical film with variable angle prisms  
An optical turning film has a first surface including an array of prisms. The array has a plurality of first prisms, with each of the first prisms having a first prism configuration, and a...
6538820 Night vision system utilizing a diode laser illumination module and a method related thereto  
A night vision system 10 is provided for detecting objects at relatively low visible light levels. The system 10 includes an infrared light source 14 . The system 10 further includes a thin...
6490093 Method of protecting ink and providing enhanced bonding during molding of lenticular lens sheets in plastic objects  
A method of fabricating plastic products with an integrated Lenticular lens material that thermally protects the ink layer and outer lens surfaces of the Lenticular insert. A Lenticular lens...
6462881 Image display apparatus  
In a viewing optical system using a reflection type image display device and a decentered prism, occurrence of ghost light is prevented which would otherwise be caused by illuminating light...
6437921 Total internal reflection prismatically interleaved reflective film display screen  
A reflective image display screen formed of two reflective sheets. The first sheet has a prismatic inward surface and an opposed outward viewing surface. The second sheet has a prismatic outward...
6369950 Liquid-crystal display device and light pipe  
In a liquid-crystal display device, a light pipe including an upper surface, a lower surface opposite to the upper surface, an incidence side surface, and a light output means formed in the upper...
6366409 Light pipe unit, plane light source unit and liquid-crystal display device  
In a light pipe unit, a surface light pipe includes at least upper and lower surfaces and connected side surfaces constituted by an incident side surface formed between the upper and lower surfaces...
6362921 Optical element, holding structure for optical element, and image pickup apparatus  
In an optical element composed of an entrance refractive surface, an exit refractive surface and a plurality of internal reflective surfaces provided between the entrance refractive surface and the...
6356391 Optical film with variable angle prisms  
An optical turning film has a first surface including an array of prisms. The array has a plurality of first prisms, with each of the first prisms having a first prism configuration, and a...
6337772 Optical element, optical system using optical element, and optical device with optical element  
In an optical element (B 1 ) prepared by integrally forming, on surfaces of a transparent member, a refracting surface (R 2 ) for receiving a light beam, a plurality of reflecting surfaces (R 3, R...
6304385 Laser irradiation apparatus and method  
Where an object is irradiated and scanned with laser beams that have been shaped into a linear shape and are moved in their width direction, a cylindrical lens group that is used in an optical...
6256150 Lenticular optical system having parallel fresnel lenses  
A lenticular optical system is described in which a composite image is viewable through a lens sheet from a first angle and an object or image placed at a preselected distance beneath the composite...
6246524 Beam homogenizer, laser irradiation apparatus, laser irradiation method, and method of manufacturing semiconductor device  
There is disclosed a technique in which stripe formation due to laser annealing is prevented and uniform laser annealing is made over the whole surface of a substrate. A laser beam having an energy...
6243208 Optical element, optical system using optical element, and optical device with optical element  
In an optical element (B1) prepared by integrally forming, on surfaces of a transparent member, a refracting surface (R2) for receiving a light beam, a plurality of reflecting surfaces (R3, R4, R5)...
6226127 Optical images  
A substrate is arranged to provide at least one optically variable image the substrate has a front surface formed with a plurality of groups of elemental areas, the different said groups of...
Matches 1 - 50 out of 155 1 2 3 4 >