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| Number | Title | Issue Date |
| 7347548 | Method and apparatus for measuring a retinal sublayer characteristic Methods and systems are provided for measuring a retinal sublayer characteristic of an eye. A plurality of axial scans are performed over an area of the retina of the eye. Reflections are measured during the axial scans to determine a plurality of sets of reflection... | 03/25/2008 |
| 7311254 | Booking station A booking station, comprising: a front, a back, a top, a bottom, a right side, and a left side, said front having a large front door that is hingedly connected to said front, said front also having a small front door that is hingedly connected to said front; a keybo... | 12/25/2007 |
| 7287855 | Method and system for removing the effects of corneal birefringence from a polarimetric image of the retina A scanning laser polarimetry (SLP) system that measures retinal nerve fiber layer (RNFL) retardance in a single scan image with improved sensitivity. An external bias retarder in combination with the anterior segment retardance forms a nonzero joint retardance adapt... | 10/30/2007 |
| 7081717 | Discharge lamp lighting apparatus for lighting multiple discharge lamps A discharge lamp lighting apparatus for lighting a plurality of discharge lamps comprises: a control circuit adapted to output driving signals; a plurality of step-up transformers; and a plurality of bridge circuits, each of which is connected to a DC power supply, ... | 07/25/2006 |
| 6847174 | Drive for a half-bridge inverter The selection of the dead time in the case of a half-bridge inverter influences the efficiency thereof. The optimal dead time, and thus the optimal switching-on time of a lower half-bridge transistor (T2) is accomplished according to the invention by virtue o... | 01/25/2005 |
| 6489730 | Discharge-lamp illumination circuit A discharge-lamp illumination circuit has a DC power supply circuit, a DC-AC conversion circuit, and a control circuit for controlling a voltage from the DC power supply circuit. The DC power supply circuit has a transformer and a first switching element ... | 12/03/2002 |
| 6356036 | System and method for determining birefringence of anterior segment of a patient's eye The magnitude and axial orientation of birefringence of the anterior and the posterior segments of the human eye are determined. The anterior segment includes essentially the combined birefringence of the cornea and the crystalline lens, and the posterior... | 03/12/2002 |
| 5164636 | Actuator for flashing light The actuator is connected in series between the power supply and the flashing light. It includes a switch which is connected in series between the power supply and the flashing light so that when the switch is closed the light turns on and when the switch... | 11/17/1992 |
