Black body background for imaging
US6830349B2 · kind B2 · utility
0Cited by
9References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 2002 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | May 15, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y80/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light trap suitable for use in an optical imaging system includes a hollow sphere, with a hollow cylindrical tube attached substantially tangent to the surface of the sphere, and forming a chimney. The interior and exterior surfaces of the sphere are coated with a low-reflective coating, such as flat black paint. A sample to be imaged is placed over the opening of the chimney with an imaging system and illumination source directed downward into the chimney itself. Light which passes through or around the sample is captured in the sphere, so that it is not reflected back into the imaging system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.