Battery-powered light source arrangement for endoscope
US6260994A · kind A · utility
169Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Aug 3, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/07
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light source arrangement for a battery-powered light source unit of an endoscope comprises a cylindrical housing, a base disposed at one end of the housing, a plurality of LEDs connected to a flexible circuit board supported on the base and a focusing lens. A light guide for directing light emanating from the LEDs. The light guide comprises a reflective surface formed on an inner wall of the housing, a reflector having a concave reflective surface which is disposed at one end of the housing so as to surround the LEDs or a micro-lens array disposed in front of the LEDs with each micro lens aligned with the LED.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.