摘要:
A luminescence detecting apparatus and method for analyzing luminescent samples is disclosed. A detecting apparatus may be configured so that light from luminescent samples pass through a collimator, a a first lens, a filter, and a camera lens, whereupon an image is created by the optics on the charge-coupled device (CCD) camera. The detecting apparatus may further include central processing control of all operations, multiple wavelength filter wheel, and/or a robot for handling of samples and reagents.
摘要:
In a luminescence detecting apparatus and method for analyzing luminescent samples, luminescent samples are placed in a plurality of sample wells in a tray, and the tray is placed in a visible-light impervious chamber containing a charge coupled device camera. In the chamber, light from the luminescent samples pass through a collimator, a Fresnel field lens, an infrared filter, and a camera lens, whereupon a focused image is created by the optics on the camera. The use of an infrared filter suppresses stray IR radiation resulting from plate phosphorescence (which can result in abnormally high backgrounds and/or alteration of the image received by the camera).
摘要:
A luminescence detecting apparatus and method for analyzing luminescent samples is disclosed. A detecting apparatus may be configured so that light from luminescent samples pass through a collimator, a first lens, a filter, and a camera lens, whereupon an image is created by the optics on the charge-coupled device (CCD) camera. The detecting apparatus may further include central processing control of all operations, multiple wavelength filter wheel, and/or a robot for handling of samples and reagents.
摘要:
A luminescence detecting apparatus and method for analyzing luminescent samples is disclosed. Luminescent samples are placed in a plurality of sample wells in a tray, and the tray is placed in a visible-light impervious chamber containing a charge coupled device camera. The samples may be injected in the wells, and the samples may be injected with buffers and reagents, by an injector. In the chamber, light from the luminescent samples pass through a collimator, a Fresnel field lens, a filter, and a camera lens, whereupon a focused image is created by the optics on the charge-coupled device (CCD) camera. The use of a Fresnel field lens, in combination with a collimator and filter, reduces crosstalk between samples below the level attainable by the prior art. Preferred embodiments of the luminescence detecting apparatus and method disclosed include central processing control of all operations, multiple wavelength filter wheel, and robot handling of samples and reagents. Preferred embodiments of processing software integrated with the invention include elements for mechanical alignment, outlier shaving, edge detection and masking, manipulation of multiple integration times to expand the dynamic range, crosstalk correction, dark subtraction interpolation and drift correction, multi-component analysis applications specifically tailored for luminescence, and uniformity correction.
摘要:
An apparatus may comprise a frame supporting at least first and second skewed radiation sources and at least first and second radiation detectors. The first and second radiation detectors may be substantially non-contiguous such that a substantial gap exists between the first and second radiation detectors that is free of any radiation detectors. Each of the first and second radiation detectors may also configured and arranged to detect radiation emitted by each of the first and second skewed radiation sources.
摘要:
An optical instrument monitors PCR replication of DNA in a reaction apparatus having a temperature cycled block with vials of reaction ingredients including dye that fluoresces in presence of double-stranded DNA. A beam splitter passes an excitation beam to the vials to fluoresce the dye. An emission beam from the dye is passed by the beam splitter to a CCD detector from which a processor computes DNA concentration. A reference strip with a plurality of reference emitters emit reference beams of different intensity, from which the processor selects an optimum emitter for compensating for drift. Exposure time is automatically adjusted for keeping within optimum dynamic ranges of the CCD and processor. A module of the beam splitter and associated optical filters is associated with selected dye, and is replaceable for different dyes.
摘要:
An optical instrument monitors PCR replication of DNA in a reaction apparatus having vials of reaction ingredients. A beam splitter passes an excitation beam to the vials. An emission beam from the reaction ingredients can be passed by the beam splitter to a detector from which a processor can compute DNA concentration. A reference strip with a plurality of reference emitters can be provided which emits reference beams of different intensity, from which the processor can select an optimum emitter for compensating for drift. Exposure time can be automatically adjusted for keeping within optimum dynamic ranges of the detector and processor. A module of the beam splitter and associated optical filters can be associated with a selected dye, and can be replaceable for different dyes.
摘要:
An optical instrument monitors PCR replication of DNA in a reaction apparatus having a temperature cycled block with vials of reaction ingredients including dye that fluoresces in presence of double-stranded DNA. A beam splitter passes an excitation beam to the vials to fluoresce the dye. An emission beam from the dye is passed by the beam splitter to a CCD detector from which a processor computes DNA concentration. A reference strip with a plurality of reference emitters emit reference beams of different intensity, from which the processor selects an optimum emitter for compensating for drift. Exposure time is automatically adjusted for keeping within optimum dynamic ranges of the CCD and processor. A module of the beam splitter and associated optical filters is associated with selected dye, and is replaceable for different dyes.
摘要:
An optical instrument monitors PCR replication of DNA in a reaction apparatus having a temperature cycled block with vials of reaction ingredients including dye that fluoresces in presence of double-stranded DNA. A beam splitter passes an excitation beam to the vials to fluoresce the dye. An emission beam from the dye is passed by the beam splitter to a CCD detector from which a processor computes DNA concentration. A reference strip with a plurality of reference emitters emit reference beams of different intensity, from which the processor selects an optimum emitter for compensating for drift. Exposure time is automatically adjusted for keeping within optimum dynamic ranges of the CCD and processor. A module of the beam splitter and associated optical filters is associated with selected dye, and is replaceable for different dyes.