Systems and methods for improved focus tracking using a hybrid mode light source
US11190706B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2020 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Apr 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0653
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods disclosed herein include an imaging system that may include a laser diode source; an objective lens positioned to direct a focus tracking beam from the light source onto a location in a sample container and to receive the focus tracking beam reflected from the sample; and an image sensor that may include a plurality of pixel locations to receive focus tracking beam that is reflected off of the location in the sample container, where the reflected focus tracking beam may create a spot on the image sensor. Some examples may further include a laser diode light source that may be operated at a power level that is above a power level for operation at an Amplified Spontaneous Emission (“ASE”) mode, but below a power level for single mode operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.