Optics: measuring and testing – By shade or color – Fluid color transmission examination
Reexamination Certificate
2006-11-17
2008-08-19
Pham, Hoa Q (Department: 2886)
Optics: measuring and testing
By shade or color
Fluid color transmission examination
C356S414000, C356S419000, C435S303100
Reexamination Certificate
active
07414724
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.
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Eckert Gerd
Lapczyna Markus
Schafrinski Arne
Timmann Lutz
Eppendorf AG
Pham Hoa Q
Rankin , Hill & Clark LLP
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