Abstract:
This spectral-image-obtaining device includes: a line-spectral-image acquiring unit that acquires a plurality of line spectral images; a frame-image acquiring unit that has an image-capturing range that encompasses that over which image capturing is performed by the line-spectral-image acquiring unit and that acquires a two-dimensional frame image that contains fewer color signals than the line spectral images; a comparison-image estimating unit that estimates comparison images for all lines based on the line spectral images acquired by the line-spectral-image acquiring unit and a wavelength characteristic of the frame-image acquiring unit; a line-spectral-image positional-deviation detecting unit that detects amounts of positional deviation between the comparison images estimated by the comparison-image estimating unit and corresponding positions within the frame image; and a positional-deviation correcting unit that fits the line spectral images to corresponding positions within the frame image based on the amounts of positional deviation detected by the line-spectral-image positional-deviation detecting unit.
Abstract:
An optical module includes a variable wavelength interference filter configured to transmit light including peak wavelengths corresponding to a gap dimension between a pair of reflection films and corresponding to a plurality of orders and first to third dichroic mirrors configured to separate light in a predetermined wavelength band and lights in wavelength bands other than the predetermined wavelength band. The plurality of first to third dichroic mirrors respectively correspond to different orders and are arranged in order such that the peak wavelengths corresponding to the orders are included in the predetermined wavelength band and transmitted light of the variable wavelength interference filter is made incident on the first dichroic mirror, second separated light of the first dichroic mirror is made incident on the second dichroic mirror, and second separated light of the second dichroic mirror is made incident on the third dichroic mirror.
Abstract:
A system for detecting a predetermined wavelength of light emitted from an area on the surface of a chemical array is provided. Aspects of the system include: a beam splitter for splitting emitted light into two or more light beams and a detector for detecting photons in each of the two produced light beams. Methods of detecting light using the subject system, programming for performing the subject methods and an array reader containing the subject system are also provided.
Abstract:
A system for detecting a predetermined wavelength of light emitted from an area on the surface of a chemical array is provided. Aspects of the system include: a beam splitter for splitting emitted light into two or more light beams and a detector for detecting photons in each of the two produced light beams. Methods of detecting light using the subject system, programming for performing the subject methods and an array reader containing the subject system are also provided.
Abstract:
An image pickup apparatus has a construction in which a diffraction element is provided in an observation optical system. Zero-order light that is transmitted straight through the diffraction element and one of the +1st-order diffracted light and the −1st-order diffracted light that is diffracted by the diffraction element are imaged onto an image pickup surface of an image pickup apparatus. The imaging areas of the zero-order light and one of the +1st-order diffracted light and the −1st-order diffracted light that is diffracted by the diffraction element do not overlap on the image pickup surface of the image pickup apparatus. With this construction, a small image pickup apparatus that provides a high-resolution spectral image and a color image of an object can be obtained.
Abstract:
In an atomic absorption photometer, depending on a fact whether a background correction is carried out or not, a pattern of a pulse lighting of light sources and a timing of sampling a light receiving signal are changed. Namely, at the time of a background correction measurement, one cycle is divided into three periods, that is, a period of lighting HCL, a period of lighting D2L, and an off period, and at the time of a measurement without a background correction, one cycle is divided into the period of lighting HCL and the off period. Accordingly, at the time of the measurement without the background correction, the period of lighting HCL and the off period become longer, and signal-to-noise ratio of the light receiving signal is improved. Accordingly, an absorbance with high accuracy can be calculated.
Abstract:
A surface plasmon sensor includes a prism, a metal film which is formed on one face of the prism and is brought into contact with a sample, a light source emitting a light beam, an optical system which causes the light beam to enter the prism so that various angles of incidence of the light beam to the interface between the prism and the metal film can be obtained, and a photodetector which is able to detect the intensity of the light beam reflected in total reflection from the interface for the various angles of incidence. A light deflector deflects the light beam so that the light beam impinges upon the interface between the prism and the metal film in a plurality of different positions in sequence.
Abstract:
A quantitative analysis of the constituents in a specimen and being classified by the conditions of the constituents in the specimen, using a spectroscopic analysis is made by exciting the specimen a number of times for emission, detecting the light intensity data of the line of the constituent element and the non-constituent element of the specimen per emission, storing the light intensity data of the lines specifying emission which contains the constituent element and the non-constituent element over a predetermined level based on the stored data, and determining that there is present a composition of the constituent element and the non-constituent element at a portion of the specimen corresponding to the specified emission.
Abstract:
An optical spectrum analyzer is provided with a user selectable sensitivity. Required operating parameters are set in response to user selection of sensitivity to permit measurement of an input light beam at the selected sensitivity. Setting the required parameters includes setting a required gain of a video channel to permit measurement of a specified maximum light signal and to provide the selected sensitivity, setting a required video bandwidth of the video channel to provide the selected sensitivity at the required gain of the video channel and setting a sweep rate to provide the selected sensitivity at the required video bandwidth. When the normal bandwidth of the video channel is not adequate to provide the selected sensitivity, the electrical signal is passed through a digital filter having a filter coefficient set to provide the required video bandwidth. A peak detector is incorporated in the video channel to accurately measure signal amplitudes in a fast scanning condition.