Patent · US Active

Light diffuser used in a testing apparatus

US7414724B2 · kind B2 · utility

56Cited by

20References

11Claims

0Family size

Assignee

Eppendorf AG · DE

Inventors

Gerd Eckert · Hamburg, DE
Lutz Timmann · Barth, DE
Markus Lapczyna · Kaltenkirchen, DE
Arne Schafrinski · Bad Oldesloe, DE

Key dates

Filing date	Nov 17, 2006
Grant date	Aug 19, 2008
Priority date	—
Expiry date	Mar 2, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/6484
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus for photometrically testing several specimens each irradiated by a light source, the light altered by the specimens being detected by an optical device and analyzed, the apparatus including a light source, a plurality of sample holders configured adjacent to one another on a support, a detector that receives altered light from sample within the sample holders, the detector including a filter for eliminating interfering light, a sensor having a sensor face and a diffusing optical member located between the filter and the sensor, wherein light is diffused and shines on a greater portion of the sensor surface, and with a more homogeneous brightness as compared to when the light is not diffused.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.