Spectrographic imaging system
US5048959A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Jun 1, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/2823
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An imaging system for providing spectrographically resolved images. The system incorporates a one-dimensional spatial encoding mask which enables an image to be projected onto a two-dimensional image detector after spectral dispersion of the image. The dimension of the image which is lost due to spectral dispersion on the two-dimensional detector is recovered through employing a reverse transform based on presenting a multiplicity of different spatial encoding patterns to the image. The system is especially adapted for detecting Raman scattering of monochromatic light transmitted through or reflected from physical samples. Preferably, spatial encoding is achieved through the use of Hadamard mask which selectively transmits or blocks portions of the image from the sample being evaluated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.