Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Heikenfeld
Jason Heikenfeld, Cincinnati, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20090232509 | ELECTROWETTING RETROREFLECTOR DEVICES, SYSTEMS, AND METHODS - Switchable retroreflector devices that are modulated via electrowetting. The devices include an electrically-conductive polar fluid and a non-polar fluid that is immiscible with the polar fluid. The polar and the non-polar fluids differ in at least one optical property. The fluids are contained in a fluid vessel, or an array of fluid vessels. The fluids are at least partially viewable. A voltage source is configured to selectively apply an electromechanical force to the polar fluid causing repositioning and/or geometrical change of the fluids such that retroreflection in created, or suppressed, by optical refraction or by optical attenuation. | 09-17-2009 |
| 20100208328 | Electrofluidic Devices, Visual Displays, And Methods For Making And Operating Such Elecrofluidic Devices - Electrofluidic devices, visual displays formed from the electrofluidic devices, and methods for making and operating such electrofluidic devices Each electrofluidic device has a fluid vessel with first and second regions that contain an electrically conductive polar fluid and a non-polar fluid The polar and/or the non-polar fluids are externally visible external through a viewable area of the second region A voltage source is electrically connected to a capacitor having a hydrophobic surface that contacts the polar fluid and provides a first principal radius of curvature of the polar fluid that is convex and smaller than a second principal radius of curvature of the polar fluid in the first region The voltage source applies an electromechanical force to the polar fluid, thereby transferring the polar fluid from the first region to the second region and causing a spectral property of light transferred through the viewable area to change | 08-19-2010 |
Jason Heikenfeld, New Richmond, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20090257111 | Tunable Optical Array Device Comprising Liquid Cells - A tunable optical component includes comprises a plurality of individual tunable liquid cells regularly arranged and integrated to at least one cell structure forming an array on the supporting substrate. A single liquid cell comprises several integrated cell walls, the cell walls projecting away from the supporting substrate and having a closed base area and an open cell surface at the cell wall edges. The liquid cell is filled with at least two liquids or fluids to provide at least one tunable interface area for varying the optical characteristic of the liquid cell. | 10-15-2009 |
Jason C. Heikenfeld, Cincinnati, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20100157413 | METHOD AND APPARATUS FOR PROVIDING A DECORATIVE SURFACE - A decorative housing ( | 06-24-2010 |
Jason C. Heikenfeld, New Richmond, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20080297880 | Display Capable Electrowetting Light Valve - The invention relates to light transmissive, transflective, or reflective flat panel display devices and, more specifically, to light emissive flat panel displays constructed from high performance electrowetting light valve (ELV) devices ( | 12-04-2008 |
Jason Charles Heikenfeld, Cincinnati, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20110025668 | Display Apparatus Comprising Electrofluidic Cells - A display apparatus is described comprising a plurality of electrofluidic chromatophore (EFC) pixel cells. Each pixel cell comprises a fluid holder for holding a polar fluid and a non-polar fluid having differing display properties. The fluid holder comprises a fluid reservoir with a geometry having a small visible area onto the polar fluid, and a channel with a geometry having a large visible area onto the polar fluid. The channel is connected to the reservoir to enable free movement of the polar fluid and non-polar fluid between the channel and the reservoir. At least part of a surface of the channel comprises a wetting property responsive to a supply voltage. The pixel cell comprises at least one further pixel cell terminal that is coupled to a further electrode to supply a direct voltage to the pixel cell. | 02-03-2011 |