Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Helwegen, NL
Ivon F. Helwegen, Herten NL
| Patent application number | Description | Published |
|---|---|---|
| 20100014167 | CONTROLLABLE OPTICAL LENS - A controllable optical lens system, comprises a chamber housing first and second fluids, the interface between the fluids defining a lens surface. An electrode arrangement controls the shape of the lens surface and has first and second electrodes. A parameter is determined by the system dependent on the electrical resistance through at least one of the lens fluids between the first and second electrodes. Thus, the series resistance through a lens fluid is used as a measure of meniscus position. | 01-21-2010 |
Ivon F. Helwegen, St. Odilienberg NL
| Patent application number | Description | Published |
|---|---|---|
| 20080239502 | Controllable Optical Lens - A controllable optical lens system, comprises a chamber housing first and second fluids, the interface between the fluids defining a lens surface. An electrode arrangement controls the shape of the lens surface and has first and second electrodes. A parameter is determined by the system dependent on the electrical resistance through at least one of the lens fluids between the first and second electrodes. Thus, the series resistance through a lens fluid is used as a measure of meniscus position. | 10-02-2008 |
| 20090066833 | METHOD FOR GENERATING IMAGES AND OPTICAL DEVICE - A method for generating a series of images at different zoom angles is disclosed. The method comprises providing an optical device ( | 03-12-2009 |
| 20090103185 | ELECTRONIC DEVICE HAVING A LIQUID-BASED OPTICAL DEVICE AND CONTROL METHOD THEREFOR - The present invention discloses an electronic device ( | 04-23-2009 |
| 20090185280 | CONTROLLABLE OPTICAL COMPONENT - A controllable optical system has an optical component comprising a chamber housing first and second fluids, the interface between the fluids defining a boundary surface ( | 07-23-2009 |
Ivon Franciscus Helwegen, Herten NL
| Patent application number | Description | Published |
|---|---|---|
| 20090009881 | Control of Electrowetting Lenses - A control circuit ( | 01-08-2009 |
| 20100019783 | METHOD, DETECTOR AND SYSTEM FOR MEASURING A SAMPLE CONCENTRATION - A method for measuring a concentration of a sample in a sample mixture, the method comprising bringing the sample mixture in contact with an organic semiconductor transistor, applying measurement signals to electrodes of the transistor for enabling measuring a drain current through the transistor, applying a refreshment signal to the gate electrode for counteracting effects imposed on the transistor during the measurement signal, measuring the drain current, applying an adaptation to at least one of said signals for stabilizing the drain current, and determining the concentration based on the adaptation. | 01-28-2010 |
| 20100043526 | PHOTO ACOUSTIC DETECTOR WITH IMPROVED SIGNAL PROCESSING - A photo, acoustic detector ( | 02-25-2010 |
| 20100045990 | OSCILLATOR ELEMENT FOR PHOTO ACOUSTIC DETECTOR - An oscillator element ( | 02-25-2010 |
Ivon Franciscus Helwegen, St. Odilienberg NL
| Patent application number | Description | Published |
|---|---|---|
| 20080219306 | Laser Power Algorithm for Low Power Applications - A system and method to minimize the power consumed by a light source. The power of a light source in controlled in response to a determination of the quality of the received data in order to optimize a reduction in power consumption. If the quality of the received data is sufficient, then the laser power can be reduced in order to save power. | 09-11-2008 |
Ivon Franciscus Helwegen, Eindhoven NL
| Patent application number | Description | Published |
|---|---|---|
| 20080202240 | Two-Dimensional Adaptive Accelerometer Based on Dielectrophoresis - Conventional accelerometers are based on test masses that are suspended in some kind of spring damper system. According to an exemplary embodiment of the present invention, a two-dimensional adaptive accelerometer based on dielectrophoresis is provided, which measures an acceleration of a test mass freely floating in a medium by determining the movement of the test mass due to an accelerating force acting on the test mass. A non-uniform electric force field provides for a wide and adjustable dynamic range. | 08-28-2008 |