Abstract:
In an optical property measuring method and an optical property measuring apparatus, a spectral transmittance characteristic of a reference colored layer prepared as a reference is corrected based on a measured spectral reflection characteristic of a colored layer, and the spectral reflection characteristic of the reference colored layer. With this arrangement, information on the measured spectral transmittance characteristic of the colored layer can be obtained with sufficient precision in conformity with a printing condition of a sample to be measured. Thus, colorimetry of a printed color of a fluorescent sample i.e. a colored surface on a fluorescent substrate can be accurately performed by using the corrected spectral transmittance characteristic of the reference colored layer.
Abstract:
A method for mapping, in three dimensions, the contents of a plume within an area is described. The method includes distributing spectrally sensitive sensors on a first surface of a vehicle, distributing spectrally sensitive emitters on a second surface of a vehicle, causing the emitters to output a signal directed through the plume and towards the sensors, receiving at least a portion of the emitter output at the sensors, communicating an output of the sensors, the sensor output caused by the received optical emitter output, to a central processing unit, and analyzing the sensor outputs and time-based vehicle positions to characterize the plume and an area surrounding the plume in three dimensions over a period of time.
Abstract:
A time-domain pulsed spectroscopy apparatus which has a pulsed laser light source; a splitting unit to split pulsed laser light; a pulsed-light emitting unit; a detector; a sample holder; and a sample-unit entrance and exit optical systems; wherein the time-domain pulsed spectroscopy apparatus further comprises: at least one optical-path-length varying unit for setting a photometric range; at least one optical delay unit for the wave form signal measurement; and, at least one gate member to pass or block the pulsed light to a reflector.
Abstract:
In an optical property measuring method and an optical property measuring apparatus, a spectral transmittance characteristic of a reference colored layer prepared as a reference is corrected based on a measured spectral reflection characteristic of a colored layer, and the spectral reflection characteristic of the reference colored layer. With this arrangement, information on the measured spectral transmittance characteristic of the colored layer can be obtained with sufficient precision in conformity with a printing condition of a sample to be measured. Thus, colorimetry of a printed color of a fluorescent sample i.e. a colored surface on a fluorescent substrate can be accurately performed by using the corrected spectral transmittance characteristic of the reference colored layer.
Abstract:
A measuring cell for receiving a blood sample is designed such that it can be transilluminated with a light source. The light source and a means for determining the luminous intensity corresponding to the light source can be arranged on the measuring cell for determining the luminous intensity of the light of the light source emerging from the measuring cell, wherein the measuring cell has constant, predefined properties with respect to the light of the light source, so that the blood oxygen content of the blood sample can be detected on the means for determining the luminous intensity due to a change of the luminous intensity of the light of the light source.
Abstract:
The invention concerns an apparatus and a method for inspection of a wafer.The apparatus encompasses at least one stroboscopic incident-light illumination device for emitting a pulsed illuminating light beam onto a surface of the wafer and for illuminating a region on the surface of the wafer; and having [sic] at least one image acquisition device for acquiring an image of the respectively illuminated region on the surface of the wafer. The apparatus is characterized, according to the present invention, in that by at least one photodetection device for sensing light of the respective illuminating light beam, and a control device for controlling an image acquisition operation on the basis of the light sensed by the photodetection device, are provided.Intensity fluctuations of the light flashes of the incident-light illumination device are compensated for either by normalizing image data of the illuminated region or by controlling the duration of the light flashes.
Abstract:
The invention makes it possible to measure a calorie by using near-infrared rays, thereby realizing calorie measurement of an object to be quickly and easily performed using a non-destructive method. A device of measuring calorie of an object includes an object holding unit (1) including a table (2) on which an inspection-target object (M) is placed; a light source unit (20) that supplies light in near-infrared regions to irradiate the inspection-target object (M) placed on the turning table (2); a light reception unit (30) that receives light reflected from or transmitted though the object (M); and a control unit (40) that calculates the calorie of the object (M) in accordance with the absorbances of the light received by the light reception unit (30). In the control unit (40), the calorie of object (M) is calculated in accordance with a regression expression and the absorbances of the light received by the light reception unit (30). In this case, the regression expression is preliminarily calculated in the manner that near-infrared rays are irradiated on a calorie known sample object (M), and multiple-regression analyses are performed on second derivative spectra at the absorbances of light reflected from or transmitted though the sample object (M).
Abstract:
Methods and systems are described that examine tissue positioned between input ports and a detection port. At lease one source of a visible or infrared wavelength is provided that introduces electromagnetic radiation into the subject. The detection port is optically coupled to a detector that is connected to a detector circuit. Radiation intensities are selected for introduction at the input ports to define a null plane in the tissue. The detection port is positioned relative to the null plane. Radiation is introduced into the subject at the first input port and the radiation that migrates through the tissue is detected. The detector circuit stores a first detector signal corresponding to the first detected radiation. Radiation is introduced at the second input port and is detected. The first detector signal is subtracted from a second detector signal corresponding to the second detected radiation to obtain processed data.
Abstract:
An automated defect inspection system has been invented and is used on patterned wafers, whole wafers, broken wafers, partial wafers, sawn wafers such as on film frames, JEDEC trays, Auer boats, die in gel or waffle packs, MCMs, etc. and is specifically intended and designed for second optical wafer inspection, for such defects as metalization defects (such as scratches, voids, corrosion, and bridging), diffusion defects, passivation layer defects, scribing defects, glassivation defects, chips and cracks from sawing, solder bump defects, and bond pad area defects.
Abstract:
A method for measuring the total sperm concentration (TSC) in a sample comprising: (i) placing the sample in a transparent container between a synchronically pulsed light source and a photodetector; and (ii) measuring the optical absorbance of the sample in the range of 800-1000 nm, the TSC of the sample being proportional to the absorbance. Also disclosed is a sampling device for use in optically analyzing a biological fluid, a method for measuring motile sperm concentration (MSC) in a semen sample, a method of determining the average velocity (AV) of sperm cells and a system for analyzing semen quality comprising means for measuring TSC, means for measuring MSC; and a video visualization system.