Abstract: A slide rack inventory and reinsertion system for use with a digital slide scanning apparatus is provided that determines, prior to scanning of glass slides in a slide rack, a status of each slot in the slide rack as properly occupied, improperly occupied, or empty. The system also determines whether a slide that has been removed from the slide rack for processing has been properly reinserted into the slide rack.

Abstract: Apparatus and methods for scanning a 2D or 3D image of a specimen without relative Z-axis motion between the specimen and the objective lens. In an embodiment, the apparatus includes a tilted camera having individual lines of pixels. Each line of pixels can be separately processed and is at a different image plane with respect to the stage. The depth of field of each line of pixels abuts, slightly overlaps, or is slightly spaced apart from the adjacent lines of pixels in the tilted camera. The angle of the tilt determines the relationship (abut, overlapping, or spaced) of the adjacent lines of pixels. The individual image lines produced by each line of pixels can be combined into a 3D volume image of a sample. Also, the highest-contrast line at each X-Y location can be combined into an in-focus 2D image of the sample.

Abstract: A digital scanning apparatus is provided that includes imaging and focusing sensors and a processor to analyze the image data captured by the imaging and focusing sensors and adjust the focus of the scanning apparatus in real time during a scanning operation. The individual pixels of the imaging sensor are all in the same image plane with respect to the optical path of the digital scanning apparatus. The individual pixels of the focusing sensor are each in a different image plane with respect to the optical path, and one pixel of the focusing sensor is on the same image plane as the image sensor. The processor analyzes image data from the imaging sensor and the focusing sensor and determines a distance and direction to adjust the relative position of an objective lens and a stage of the digital scanning apparatus to achieve optimal focus during the scanning operation.

Abstract: System for acquiring a digital image of a sample on a microscope slide. In an embodiment, the system comprises a stage configured to support a sample, an objective lens having a single optical axis that is orthogonal to the stage, an imaging sensor, and a focusing sensor. The system further comprises at least one beam splitter optically coupled to the objective lens and configured to receive a field of view corresponding to the optical axis of the objective lens, and simultaneously provide at least a first portion of the field of view to the imaging sensor and at least a second portion of the field of view to the focusing sensor. The focusing sensor may simultaneously acquire image(s) at a plurality of different focal distances and/or simultaneously acquire a pair of mirrored images, each comprising pixels acquired at a plurality of different focal distances.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.