Laser scanning optical microscope
US5936764A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 23, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Jul 23, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/34
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laser scanning optical microscope comprises a first optical scanning device for generating a laser beam and scanning a specimen with the laser beam in a direction at a preselected frequency. A drive circuit controls the first optical scanning device to scan the specimen with the laser beam. A pair of second optical scanning devices scan the laser beam in directions perpendicular and parallel to the scanning direction of the first optical scanning device at two frequencies lower than the preselected frequency. A light receiving device receives light reflected or transmitted by the scanned specimen and produces a photoelectric signal. A signal processing device converts the photoelectric signal obtained from the light receiving device to a standard television scanning signal corresponding to a laser beam scanning pattern obtained with the first optical scanning device and the pair of second optical scanning devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.