Simultaneous multiple wavelength photometer
US4657398A · kind A · utility
6Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1985 |
| Grant date | Apr 14, 1987 |
| Priority date | — |
| Expiry date | Jun 10, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/59
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Simultaneous multiple photometer measurements are made by simultaneously passing light to be measured through multiple light paths to different locations of a circularly variable filter; passing the light through the circularly variable filter at said locations; collecting the light passed through the circularly variable filter at each location; transmitting the light passed through the circularly variable filter to separate detectors; and measuring the light transmitted along each light path by said detectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.