Abstract:
A spectral microscopy device includes a spectral detecting unit including a light source that is capable of controlling an output wavelength, a microscope section that is provided with an observation area that is illuminated with light output from the light source, and a signal detector that detects light from the observation area as spectral data; a moving unit configured to move the observation area; and a controller that performs a control operation to allow the spectral detecting unit and the moving unit to move in response to each other. The spectral microscopy device is controlled so that switching between different measurement conditions based on the number of measurement points is performed at an observation area movement time in which the observation area is moved by the moving unit and measurement is performed and at a observation area movement stoppage time in which the observation area is fixed and measurement is performed, and spectral data is detected.
Abstract:
La présente invention concerne un microscope à sonde locale multimode comportant un résonateur (1), une première électrode (9) et une seconde électrode (8), une source d'excitation adaptée pour générer une résonance mécanique dans le résonateur, une pointe (4) métallique fixée sur le résonateur, des moyens de déplacement relatif entre la sonde locale et un échantillon adaptés pour approcher l'extrémité de la pointe à une distance Z comprise entre 0 et 100 nm et des moyens de détection d'au moins un signal électrique représentatif des forces de friction aux bornes desdites électrodes (8, 9). Selon l'invention, ladite pointe métallique (4) est reliée électriquement à ladite deuxième électrode de sortie (9) et l'appareil de microscopie comporte des moyens d'amplification et de filtrage des signaux relatifs aux forces de frictions et au courant tunnel dans un seul et même circuit électronique, des moyens de régulation de la distance Z entre l'extrémité de la pointe et la surface de l'échantillon.
Abstract:
A dual pass monochromator for generating excitation radiation and isolating emission radiation at prescribed wavelengths, useful for analyzing florescence in multi-assay micro-titer plate readers is disclosed. The optically dispersive element can be used to receive radiation through an entrance aperture; isolate a prescribed wavelength band; and then direct the prescribed wavelength band through a first exit aperture onto a sample. The excited emissions from the sample can then be received back through the first exit aperture and be directed to the optically dispersive element to isolate the emission wavelength band and direct it onto a detector through a second exit aperture. Band pass elements can be optically coupled to the optically dispersive element to tune the excitation and emission wavelength bands. Band pass optical elements can be dispersive diffraction gratings, or non-dispersive optical filters. The dual pass monochromator can be modular and include a number of optically isolated compartments.
Abstract:
An optical microscanner achieves wide rotation angles utilizing a curved reflector. The optical microscanner includes a moveable mirror for receiving an incident beam and reflecting the incident beam to produce a reflected beam and a Micro Electro-Mechanical System (MEMS) actuator that causes a linear displacement of the moveable mirror. The curved reflector produces an angular rotation of the reflected beam based on the linear displacement of the moveable mirror.
Abstract:
The present invention relates to a wavelength-tunable spectrometer for achieving optimum efficiency for the wavelength of applied light even without replacing a diffracting grating or operating an observation part, and to a wavelength tuning method thereof. To this end, a transmission-type diffracting plate is arranged to be rotatable to provide an incident light for achieving optimum efficiency for the light wavelength of an external source to be observed, and a mirror is arranged to provide light in the same output path irrespective of the rotation of the diffracting plate and the wavelength variation of the incident light, the diffraction angle of which might otherwise vary in accordance with the rotation of the transmission-type diffracting plate and the incident light wavelength. Whereby, the present invention acquires a spectrum of incident light at optimum diffraction efficiency according to the wavelength of the incident light even without moving a camera for observation or replacing a diffracting plate, thus reducing the size of the spectrometer, the cost thereof, and the possibility of the spectrometer breaking down.
Abstract:
The invention relates to a method and device for collecting spectrometric measuring signals. The aim of said invention is to deliver solutions which make it possible to exactly collect spectrometric measuring signals in a low-cost matter. Said aim is attained by a spectrometric measuring device comprising an input splitting device for passing studied radiation, a Rowland grid device which is associated therewith and reflects incident radiation by spectral spreading, a recording device for recording the narrow part of the spectrum spread by said Rowland grid device and a guiding device which guides and displaces the recording device on a detection path whose spectral clearness is substentially contrast, whereby making it possible to obtain an accurate spectral distribution of studied light in an advantage manner. Said invention also makes it possible to form a recording device or to couple said device to an evaluation system in an operational manner in such a way that possible dependencies of the recorded intensity with respect to the wavelength of the light incident to the recording device are compensated by evaluation procedures. Compensating parameters can determined by gauging procedures and recorded in the internal memory of the device.
Abstract:
Exemplary systems and methods for filtering an electromagnetic radiation can be provided. For example, at least one first arrangement (4) can be provided which is capable of receiving at least one first electro-magnetic radiation and forwarding at least one second electro-magnetic radiation at different angles with respect to a direction of incidence of the first electro-magnetic radiation. At least one second wavelength dispersion arrangement (5) can be provided which is configured to receive the second electro-magnetic radiation, forward at least one third electro-magnetic radiation to the first arrangement (4) and further receive at least one fourth electro-i magnetic radiation. The third electro-magnetic radiation can be based on the second electro-magnetic radiation, and the fourth electro-magnetic radiation can be based on the third electro-magnetic radiation. For example, the second^ arrangement can be configured to forward the second electro-magnetic radiation at different angles with respect to a direction of incidence of the at least one particular electro-magnetic radiation. Exemplary embodiments of methods can be provided to implement such exemplary techniques.
Abstract:
An apparatus and source arrangement for filtering an electromagnetic radiation can be provided which may include at least one spectral separating arrangement (200) configured to physically separate one or more components (320, 340) of the electromagnetic radiation based on a frequency of the electromagnetic radiation. The apparatus and source arrangement may also have at least one continuously rotating optical arrangement, e.g., a spinning reflector disk scanner (500), which is configured to receive at least one signal that is associated with the one or more components (320, 340). Further, the apparatus and source arrangement can include at least one beam selecting arrangement configured to receive the signal. Rotating disk (500) may comprise reflecting patterns (520) to generate a wavelength scan depending on the rotation frequency of the disk (500).
Abstract:
A robust, compact spectrometer apparatus for determining respective concentrations or partial pressures of multiple gases in a gas sample with single as well as multiple and even overlapping, absorption or emission spectra that span a wide spectral range.