Abstract:
A reflection characteristic measuring apparatus capable of scanning a specimen surface of a sheet specimen at a high speed is provided. The reflection characteristic measuring apparatus includes a group of illuminating and light-receiving systems for directing illuminating light onto the specimen surface of the sheet specimen held by a specimen holding roller pair and for receiving reflected light from the specimen surface. The illuminating and light-receiving systems measure a spectral characteristic of the received reflected light. The illuminating and light-receiving systems are disposed over one-dimensional arrays of color samples which extend in the longitudinal direction of the sheet specimen, and scan the one-dimensional arrays in a direction opposite to a direction in which the sheet specimen is transported.
Abstract:
A device for calibrating an optical scanner includes a substrate; and a pattern disposed on the substrate, the pattern comprising a photoresist.
Abstract:
Methods and apparatus for standardizing quantitative measurements from a microscope system. The process includes a calibration procedure whereby an image of a calibration slide is obtained through the optics of the microscope system. The calibration slide produces a standard response, which can be used to determine a machine intrinsic factor for the particular system. The machine intrinsic factor can be stored for later reference. In use, images are acquired of a target sample and of the excitation light source. The excitation light source sample is obtained using a calibration instrument configured to sample intensity. The calibration instrument has an associated correction factor to compensate its performance to a universally standardized calibration instrument. The machine intrinsic factor, sampled intensity, and calibration instrument correction factor are usable to compensate a quantitative measurement of the target sample in order to normalize the results for comparison with other microscope systems.
Abstract:
An optical positioning apparatus and method are adapted for determining a position of an object in a three-dimensional coordinate system which has a first axis, a second axis and a third axis perpendicular to one another. The optical positioning apparatus includes a host device which has a first optical sensor and a second optical sensor located along the first axis with a first distance therebetween, and a processor connected with the optical sensors, and a calibrating device placed in the sensitivity range of the optical sensors with a second distance between an origin of the second axis and a coordinate of the calibrating device projected in the second axis. The optical sensors sense the calibrating device to make the processor execute a calibrating procedure, and then sense the object to make the processor execute a positioning procedure for determining the position of the object in the three-dimensional coordinate system.
Abstract:
There is provided a laser energy measuring unit whose laser energy measuring range is widened. The laser energy measuring unit has a filter provided within an optical path of a laser to attenuate energy of the laser, a calculating section for measuring the energy of the laser passing through the filter, and a condenser lens provided on one side of the filter for condensing the laser. The filter has a shading portion for blocking a center part of the laser beam from being transmitted through the filter at a position coincident with the center of the laser. The center part of the laser where its energy is large is cut by the shading portion, and the calculating section measures the part where its energy is not so large. Thereby, it is possible to widen the laser energy measuring range.
Abstract:
A method and apparatus for calibration of a result from a test device using a reagent are provided. The method includes measuring an optical signal for a sample contained in the test device to obtain a measured optical signal value, the sample having a known concentration; and determining a relationship between the known concentration of the sample and a ratio of an estimated optical signal value to the measured optical signal value of the sample.
Abstract:
A fluorescent color calibrator for calibrating RGB pixel values is provided. The fluorescent color calibrator includes a plurality of fluorogenic compounds adapted to fluoresce in a visible color spectrum; and a second plurality of fluorogenic compounds adapted to fluoresce in multiple visible gray spectrums. Also provided is a method for using the fluorescent color calibrator to standardize fluorescent colors when viewing with an RGB monitor.
Abstract:
1.1. Method for the configuration a laser scanning microscope for a raster image correlation spectroscopy measurement and method for carrying out and evaluating a measurement of this kind. 2.1. Manual setting of the scan parameters for a raster image correlation spectroscopy measurement (RICS) is complicated because the effects of setting a certain parameter are not apparent due to the complex interaction between the various parameters and also depend on the physical-technical properties of the microscope. By means of an improved configuration method, mathematical transport models can be fitted to correlations determined by means of scanning fluorescence spectroscopy with few errors. With improved methods for carrying out or evaluating a RICS measurement, the amount of data to be stored can be reduced and RICS correlations of high statistical quality can be determined within a short period of time. 2.2. According to the invention, for a raster image correlation spectroscopy measurement, a best value for a sampling value is determined and is specified for a subsequent scanning process on a sample. In order to carry out or evaluate a RICS measurement, sampling values are acquired or a correlation is determined exclusively in a sample region within which a pixel time (ΔP) changes along a harmonically controlled scan axis (X) by less than, or at most by, a predetermined or predeterminable value. 2.3. The invention is preferably used in laser scanning microscopes.
Abstract:
Methods for normalizing output from an instrument employing a reference standard or non-fluorescing substance disposed within at least one of a plurality of reaction chambers. The method comprises collecting and analyzing a signal associated with the reference standard or non-fluorescing substance to determine a normalizing bias. The normalizing bias is then applied to the data signal collected from a remainder of the plurality of reaction chambers.
Abstract:
Photovoltaic thin film quality control is obtained where the thin film is supported by a support and a section of the film is illuminated by a polychromatic or monochromatic illumination source. The source forms on the thin film an illuminated line. The light collected from discrete sampled points located on the illuminated line is transferred to a photo-sensitive sensor through an optical switch. The spectral signal of the light reflected, transmitted or scattered by the sampled points is collected by the sensor, processed and photovoltaic thin film parameters applicable to the quality control are derived e.g. thin film thickness, index of refraction, extinction coefficient, absorption coefficient, energy gap, conductivity, crystallinity, surface roughness, crystal phase, material composition and photoluminescence spectrum and intensity. Manufacturing equipment parameters influencing the material properties may be changed to provide a uniform thin film layer with pre-defined properties.