University of Cincinnati

3m Innovative Properties Company

U.S. Precision Lens Incorporated

Corning Incorporated

John D Rudolph

Simon Magarill

Kenneth Andrew Dean

Jason C Heikenfeld

E Gregory Fulkerson

Eric Kreit

Andrew Jules Steckl

Joachim Bunkenburg

Roy A Auerbach

Brahim Dahmani

A method for manufacturing a freestanding film having at least one population of through holes cumulatively totaling at least 1% of the film area, wherein the standard deviation of hole diameters is less than 25% and a thickness less than 25 micrometers, The film provides a carrier substrate, a photo-curable material, a release agent and deposits a photo-curable material on the substrate, selectively curing the material and leaving uncured material in the pattern of holes, dissolving away the uncured material and removing the cured material from the carrier substrate. Methods and apparatus are described.

Electrofluidic display and methods for making

A shading assembly configured to have a first selectable state that is transmissive to more than 40% of solar light and reflects more than 35% of solar heat, a second selectable state that blocks more than 75% of the solar light and transmits more than 50% of the solar heat, and a third selectable state that transmits more than 50% of the solar light and more than 50% of the solar heat.

Energy efficient shading systems for windows

A method for manufacturing a freestanding film having at least one population of through holes cumulatively totaling at least 1% of the film area, wherein the standard deviation of hole diameters is less than 25% and a thickness less than 25 micrometers, The film provides a carrier substrate, a photo-curable material, a release agent and deposits a photo-curable material on the substrate, selectively curing the material and leaving uncured material in the pattern of holes, dissolving away the uncured material and removing the cured material from the carrier. Methods and apparatus are described.

Methods, systems, devices and/or apparatuses are provided that selectively reflect the infrared spectrum independent of other regions of the solar spectrum in order to actively manage solar heat gain across surfaces such as windows, skylights, roofs, siding and the like.

Spectrum-modulated smart windows

A signage device comprising one or more light sources, a waveguide or arrangement of waveguides and photoluminescent features coupled thereto. In one embodiment, a waveguide is adapted to receive light of a first wavelength and the photoluminescent features are adapted to emit light of a second wavelength in response to receiving light of the first wavelength.

Light emissive signage devices based on lightwave coupling

Optical systems for projection optical devices which employ reflective LcoS panel () are provided. The systems provide high contrast, compact size, and high light throughput.

Optical systems for reflective LCDs

A rear projection screen for use with a projection lens which has an exit pupil () is provided. The screen has a light entering side and a light exiting side and comprises in order from said light entering side to said light exiting side: (a) a Fresnel structure (); (b) a lenslet array (); and (c) an opaque layer () comprising a plurality of pinholes, said pinholes being at locations which correspond to the images of the exit pupil formed by the combination of the Fresnel structure and the lenslet array.

Screen for rear projection display

A tilted polarization splitter ( ) for use with a projection lens ( ) and a light modulating panel ( ) is provided. The polarization splitter has an ultra thin substrate ( ) whose thickness is chosen so that the depth of focus of the projection lens in imager space is greater than the astigmatism produced by the splitter at its tilted angle. The polarization splitter can be a wire grid polarizer, polarization coating, or birefringence film carried by or formed on the ultra thin, plane parallel plate substrate.

Polarization arrangement

Optical systems for use with reflective LCDs ( ) are provided. The systems include a polarization beam splitter ( ) which can be composed of polarization beam splitting cubes ( ) having sheet polarizers ( ) and/or half wave plates ( ) at their mating surfaces. By orienting the half wave plates ( ) so that they convert S polarization to P polarization and P polarization to S polarization, the polarization beam splitter ( ) can provide a high contrast ratio at a viewing screen between light from the &ldquo;on&rdquo; and &ldquo;off&rdquo; pixels of the reflective LCDs ( ).

Growing community of inventors

Cincinnati, OH, United States of America

John D Rudolph