CHROMATIC FOCUSING VIA FILTER THICKNESS TUNING

    公开(公告)号:US20240302641A1

    公开(公告)日:2024-09-12

    申请号:US18597463

    申请日:2024-03-06

    CPC classification number: G02B21/361 G02B21/086

    Abstract: The present relates to chromatic focusing via filter thickness tuning. Chromatic focusing can be achieved via an imaging system that includes a sample holding plane, a light source that illuminates the sample on the plane, and an imager that captures an image of the sample on the plane. The imager includes a sensor, a lens, and a filter wheel defining a plurality of filter apertures including a first aperture containing a first filter passing light of a first color and having a first focal point shift, and a second aperture containing a second filter passing light of a second color and having a second focal point shift. The focal point shifts cause both light of the first color passing through the first filter and through the lens and light of the second color passing through the second filter and through the lens to focus on the sensor.

    IMAGING OF STAIN-FREE FLUORESCENCE ON WESTERN BLOT MEMBRANES WITH EXCITATION BY EPI ILLUMINATION WITH UV LEDs

    公开(公告)号:US20240302323A1

    公开(公告)日:2024-09-12

    申请号:US18594870

    申请日:2024-03-04

    CPC classification number: G01N27/44721 G01N27/44739 H04N23/56

    Abstract: Systems, methods, and devices for imaging of stain-free fluorescence on western blot membranes with excitation by epi illumination with UV LEDs are disclosed herein. A method can include collecting and preparing a sample, separating the sample via gel electrophoresis in a gel block, transferring the separated sample from the gel block to an analysis block, generating an image of the sample with an imager, and evaluating the image of the sample. The imager can include a plane to receive and hold a block containing a sample and including a first side and a second side, a camera to image a sample on the plane and positioned above the first side of the plane, and an LED light source positioned above the first side of the plane. The LED light source can illuminate the sample on the plane via epi-illumination, and emits light having a wavelength in a range from approximately 325 nm to approximately 400 nm.

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