Leica Biosystems Imaging, Inc.

Gregory J Crandall

Yunlu Zou

Allen Olson

Nicholas Newberg

Dirk G Soenksen

Peyman Najmabadi

Aaron Alan Stearrett

Christopher Adam Lee

Cynthia Perz

Systems and methods for capturing a digital image of a slide using an imaging line sensor and a focusing line sensor. In an embodiment, a beam-splitter is optically coupled to an objective lens and configured to receive one or more images of a portion of a sample through the objective lens. The beam-splitter simultaneously provides a first portion of the one or more images to the focusing sensor and a second portion of the one or more images to the imaging sensor. A processor controls the stage and/or objective lens such that each portion of the one or more images is received by the focusing sensor prior to it being received by the imaging sensor. In this manner, a focus of the objective lens can be controlled using data received from the focusing sensor prior to capturing an image of a portion of the sample using the imaging sensor.

Real-time focusing in line scan imaging

A digital pathology imaging apparatus includes a single line scan camera sensor optically coupled with first and second optical paths. In a first embodiment, transmission mode illumination and oblique mode illumination are simultaneously used during a single stage movement that captures a low resolution macro image of the entire sample area and the entire label area of the slide via the first optical path. In a second embodiment, transmission mode illumination is used during a first stage movement that captures a low resolution macro image of at least the entire sample area via the first optical path and oblique mode illumination is used during a second stage movement that captures a low resolution macro image of at least the entire label area via the first optical path.

Low resolution slide imaging and slide label imaging and high resolution slide imaging using dual optical paths and a single imaging sensor

A system for creating a contiguous digital image of a fluorescence microscope sample. In an embodiment, the system comprises a both a macro camera and a time delay integration (TDI) line scan camera. The system may also comprise a motorized stage, an illumination module, a light source, an excitation filter, an objective lens, an emission filter, and at least one processor configured to assemble a plurality of digital images of portions of the fluorescence microscope sample, generated by the TDI line scan camera, into a contiguous digital image of at least a portion of the fluorescence microscope sample.

Whole slide fluorescence scanner

Systems and methods for standardizing one or more fluorescence scanning instruments to a reference system by separating the effects of drift and normalization. In an embodiment, a drift image comprising an image of a drift reference slide is captured by a system to be standardized. A drift measurement is calculated using the drift image. A first normalization image comprising an image of a normalization slide is also captured by the system to be standardized. A reference normalization image, also comprising an image of the normalization slide, is captured by a reference system. The first normalization image is compared to the reference normalization image to determine a gamma value and offset value for the system to be standardized.

Standardizing fluorescence microscopy systems

A whole slide fluorescence digital pathology system is provided that uses a monochrome TDI line scan camera, which is particularly useful in fluorescence scanning where the signal is typically much weaker than in brightfield microscopy. The system uses oblique brightfield illumination for fast and accurate tissue finding and employs a unique double sweep focus scoring and objective lens height averaging technique to identify focus points and create a focus map that can be followed during subsequent scanning to provide autofocusing capability. The system also scans and analyzes image data to determine the optimal line rate for the TDI line scan camera to use during subsequent scanning of the digital slide image and it also creates a light profile to compensate for loss of illumination light due to roll off.

Growing community of inventors

Vista, CA, United States of America

Gregory J Crandall