Ophthalmic Endoilluminator with Variable-Wedge Rotating-Disk Beam Attenuator
US7499624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2007 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Apr 20, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3614
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmic endoilluminator includes a light source, a variable-wedge rotating-disk attenuator, a condensing lens, and an optical fiber. The variable-wedge rotating-disk attenuator attenuates the light produced by the light source. The variable-wedge rotating-disk attenuator includes a wedge capable of being adjusted over a variable angle as measured through an arc of the wedge and an axle to which the wedge is attached. The axle rotates such that the wedge rotates around a pivot defined by the axle. The condensing lens focuses the attenuated light. The optical fiber carries the focused light into an eye. The variable-wedge rotating-disk attenuator is located such that it affects the intensity of a light beam transmitted into an eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.