Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate
2011-04-12
2011-04-12
Porta, David P (Department: 2884)
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
C356S485000, C250S23700G
Reexamination Certificate
active
07923672
ABSTRACT:
A device for optically sensing a specimen with a large depth of field has a lighting module which illuminates a zone of the specimen during a predetermined measurement period with a pattern whose phase is modified in time during the measurement period, generating a specimen light to which a corresponding time-variable phase is imparted. The device also includes a detection module having a space-resolving detection zone which records the specimen zone and has multiple recording pixels, two analysis channels which can be connected to the recording pixels, and an analysis unit is connected to both analysis channels. A control unit is provided which, during the measurement period, connects each recording pixel in synchrony with the phase of the detected specimen light to the two analysis channels, alternatively, in such a way that the detected specimen light is divided into two portions phased in relation to one another, and the analysis unit calculates an optical split-image of the specimen zone on the basis of the two phased portions supplied to the analysis channels.
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Boosalis Faye
Carl Zeiss MicroImaging GmbH
Duane Morris LLP
Porta David P
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