Integrating sphere power meter
US5251004A · kind A · utility
18Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1992 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Mar 13, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/0481
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved power meter for measuring the energy and wavelength of light emanating from an optical fiber. The meter is an integrating sphere having a source aperture for receiving the tip of an optical fiber and coupling the light from the tip into the sphere's central cavity. The source aperture is modified to include a sterilizable, liquid-fillable insert which mimics the optical environment within tissue. The sphere also has improved baffling and the sensitivity of wavelength verification is improved by means of a rotatable interference filter placed between an exit aperture and a light detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.