Abstract:
Featured are a device (20) and method for the detection of counterfeit pharmaceuticals and/or packaging therefore. Counterfeit pharmaceuticals are detected by visual inspection upon exposing a suspected counterfeit pharmaceutical to one or more light sources having different wavelengths, and observing the differences in color and/or brightness between the suspected counterfeit and a genuine pharmaceutical/packaging. In further embodiments, a image acquisition device acquires an image showing color and/or other visual effect (s) brightness of the suspect counterfeit and this image is compared to an image of a authentic pharmaceutical/packaging.
Abstract:
A system and method are disclosed for standoff spectroscopy of molecules (e.g. from a residue) on a surface from a distance. A source emits radiation that modifies or conditions the residue, such as through photodecomposition. A spectral generating source measures a spectrum of the residue before and after the residue is exposed to the radiation from that source. The two spectra are compared to produce a distinct identification of the residues on the surface or identify certain properties of the residue.
Abstract:
A light transmissive temperature control apparatus, a bio-diagnosis apparatus including the transmissive temperature control apparatus, and a method of diagnosing biochemical reaction using the bio-diagnosing apparatus are provided. The light transmissive temperature control apparatus includes at least one tube which is formed of a light transmissive material and configured to contain a sample; and a temperature control unit which accommodates at least a part of the at least one tube which is transparent, guides light to be irradiated onto the at least one tube, and controls a temperature of the at least one tube.
Abstract:
A light source device includes: a plurality of light emitting elements that emit laser light; and a wavelength selective element that includes a light selective region functioning as a resonator mirror of the light emitting element by selecting light of predetermined selective wavelength from the laser light emitted from one of the light emitting elements and reflecting the selected light toward the light emitting element while allowing the remaining laser light to pass therethrough, and a base member having a plurality of the light selective regions so that the wavelengths of the light selected by the light selective regions are different from each other.
Abstract:
A computer program product and method for calibrating and characterizing a color display perform calibrating and characterizing steps. A light source is operated in order to emit light from one or more light emitters on the light source. A color capture device, e.g., a digital camera, is calibrated and characterized based on the emitted light. Then, color images are displayed on the color display and captured on the color capture device. The color display is calibrated and characterized based on the captured color images. Computer program instructions are recorded on the computer readable medium, and are executable by a processor, for performing the calibrating and characterizing steps. A method for generating a controlled light source includes displaying light source selections to a user and receiving a user light source selection. Selected light emitters produce a light output matching the user light source selection.
Abstract:
The present disclosure describes the harvesting and use of ambient light in spectrophotometric systems so as to increase the energy efficiency of the systems. In one embodiment, the collected ambient light is filtered and/or converted into discrete wavelengths of light that can then be used in spectrophotometric applications. In one embodiment, the emitted light can then be collected and analyzed to derive various physiological parameters. In certain embodiments, the ambient light may be used in place of light that is electrically generated.
Abstract:
The invention relates to a color-controlled illumination device (1) with a number of light emitters, for example LEDs (L1, L2, L3, L4), of different primary colors. Photosensors (D1, D2, D3) consisting of a photodiode (20) covered with different dielectric filter layers (21) measure the light output of the light emitters (L1, L2, L3, L4) with distinct oscillating sensitivity curves that extend over the whole relevant spectral range. In a control unit (14), the actual color point of the illumination device (1) is calculated and the emissions of the light emitters (L1, L2, L3, L4) are individually adapted in order to match a target color point ((X,Y,Z)target) given with e.g. CIE tri-stimulus values.
Abstract:
A cell for a vacuum ultraviolet plasma light source, the cell having a closed sapphire tube containing at least one noble gas. Such a cell does not have a metal housing, metal-to-metal seals, or any other metal flanges or components, except for the electrodes (in some embodiments). In this manner, the cell is kept to a relatively small size, and exhibits a more uniform heating of the gas and cell than can be readily achieved with a hybridized metal/window cell design. These designs generally result in higher plasma temperatures (a brighter light source), shorter wavelength output, and lower optical noise due to fewer gas convection currents created between the hotter plasma regions and surrounding colder gases. These cells provide a greater amount of output with wavelengths in the vacuum ultraviolet range than do quartz or fused silica cells. These cells also produce continuous spectral emission well into the infrared range, making them a broadband light source.
Abstract:
An extreme ultraviolet light generation apparatus used in combination with a laser system, the apparatus may include: a chamber provided with at least one inlet port for introducing a laser beam outputted from the laser system into the chamber; a target supply unit provided to the chamber for supplying a target material to a predetermined region inside the chamber, where the target material is irradiated with the laser beam; at least one optical element disposed inside the chamber; a magnetic field generation unit for generating a magnetic field around the predetermined region; an ion collection unit disposed in a direction of a line of magnetic force of the magnetic field for collection an ion which is generated when the target material is irradiated with the laser beam and is flowing along the line of magnetic force; and a gas introduction unit for introducing an etching gas into the chamber.
Abstract:
A scanning photometer and attendant methods are provided. The scanning photometer is generally characterized by first and second fluorophore excitation sources, an objective lens, and a common emission detector for the detection of first and second fluorophore emission originating from the excitation of the fluorophores via passage of excitation energy, via an optical path of the objective lens, from the excitation sources. Excitation energy and emission energy conditioning elements are like-wise provided, operatively interposed before or after the objective lens as the case may be.