Abstract:
A spectrometry instrument, e.g., for time-resolved spectroscopy, has quick-change exchangeable accessories (48, 50, 52) which are manually attached via rotation of a camming means to engage and lock a stud member. A circuit element in each accessory (48, 50, 52), such as a resistor or a configured pin connection, acts to generate a voltage in the instrument that uniquely identifies which accessory is attached. A method for measuring a phosphorescence decay characteristic includes applying an excitation pulse to a sample (34); obtaining emission intensity data for a sequence of time delays following the excitation pulse; repeating for at least one further excitation pulse using a different sequence of time delays; and interleaving the data from different excitation pulses to construct a decay characteristic.
Abstract:
Die Erfindung betrifft ein Mikroskop mit einer Vorrichtung zur automatischen Erkennung optischer Bauteile, welche sich im Strahlengang des Mikroskops befinden oder z.B. mittels eines Revolvers oder Schiebers in diesen einbringen lassen sowie das zugehörige Verfahren zur Erkennung dieser Bauelemente. Dabei werden in mindestens vier Spektralbereichen die Charakteristika der Bauelemente bestimmt und mit vorher in einer Datenbank abgelegten Werten bekannter Bauelemente verglichen.
Abstract:
The method and apparatus of the present invention provides a system wherein light-emitting diodes (LEDs) (162) can be tuned within a given range by selecting their operating drive current in order to obtain a precise wavelength. The present invention further provides a manner in which to calibrate and utilize an LED probe (150), such that the shift in wavelength for a known change in drive current is a known quantity. In general, the principle of wavelength shift for current drive changes for LEDs is utilized in order to allow better calibration and added flexibility in the use of LED sensors, particularly in applications when the precise wavelength is needed in order to obtain accurate measurements. The present invention also provides a system in which it is not necessary to know precise wavelengths of LEDs where precise wavelengths were needed in the past. Finally, the present invention provides a method and apparatus for determining the operating wavelength of a light-emitting element such a light-emitting diode.
Abstract:
Provided is a Fourier transform type spectrophotometer capable of stably controlling a speed of a moving mirror. The Fourier transform type spectrophotometer according to the present invention is provided with a movable unit 111 to which a moving mirror 141 is fixed, outside-force-applying means 160 configured to apply external force larger than movement resistance of the movable unit 111 to the movable unit 111, a driving source 120 configured to apply positive or negative driving force along the moving direction of the movable unit 111 to the movable unit 111, a speed measurement unit 132 configured to measure the moving speed of the movable unit 111, and a driving force control unit 131 configured to control the driving force of the driving source 120 so that the movable unit 111 is moved in a predetermined manner based on the moving speed, wherein a rate of fluctuation of the driving force is suppressed by operating in a state in which the driving force of the driving source 120 is high due to the external force to thereby stabilize the control.
Abstract:
Provided is a Fourier transform type spectrophotometer capable of stably controlling a speed of a moving mirror. The Fourier transform type spectrophotometer according to the present invention is provided with a movable unit 111 to which a moving mirror 141 is fixed, outside-force-applying means 160 configured to apply external force larger than movement resistance of the movable unit 111 to the movable unit 111, a driving source 120 configured to apply positive or negative driving force along the moving direction of the movable unit 111 to the movable unit 111, a speed measurement unit 132 configured to measure the moving speed of the movable unit 111, and a driving force control unit 131 configured to control the driving force of the driving source 120 so that the movable unit 111 is moved in a predetermined manner based on the moving speed, wherein a rate of fluctuation of the driving force is suppressed by operating in a state in which the driving force of the driving source 120 is high due to the external force to thereby stabilize the control.
Abstract:
A hand held spectrometer is used to illuminate the object and measure the one or more spectra. The spectral data of the object can be used to determine one or more attributes of the object. In many embodiments, the spectrometer is coupled to a database of spectral information that can be used to determine the attributes of the object. The spectrometer system may comprise a hand held communication device coupled to a spectrometer, in which the user can input and receive data related to the measured object with the hand held communication device. The embodiments disclosed herein allow many users to share object data with many people, in order to provide many people with actionable intelligence in response to spectral data.
Abstract:
Provided is an analysis target region setting apparatus that can accurately set an analysis target region, based on an observation image of a sample obtained with an optical microscope and the like irrespective of texture on the sample surface when the analysis target region is set therein. The analysis target region setting apparatus according to the present invention divides the observation image into a plurality of sub-regions based on pixel information on each pixel constituting the observation image. Subsequently, consolidation information on each sub-region is calculated, and two adjacent sub-regions themselves are consolidated based on the consolidation information. According to this, it is possible to divide the observation image into sub-regions having similar pixel information with a disregard of noise attributed to the shape of a surface and the like. A user designates one sub-region from among the sub-regions finally obtained, as the analysis target region.
Abstract:
Die Erfindung bezieht sich auf eine Anordnung zur Charakterisierung der Strahlungsquellen (5.1,5.2,5.3) in einem Analysegerät (1). Den Strahlungsquellen (5.1,5.2,5.3) sind Datenspeicher zugeordnet, die mit einer Schreib-/Leseeinheit (11) kommunizierend in Verbindung stehen, wobei zwischen dem Datenspeicher und der Schreib-/Leseeinheit (11) Daten ausgetauscht werden, die sowohl die Identifikation der jeweiligen Strahlungsquelle (5.1,5.2,5.3) als auch Vorgaben für deren Ansteuerung betreffen. Die Erfindung bezieht sich weiterhin auf ein entsprechendes Verfahren zur Charakterisierung von Strahlungsquellen (5.1,5.2,5.3) innerhalb eines Analysegerätes (1) anhand von jeder Strahlungsquelle (5.1,5.2,5.3) zugeordneten Datenspeichern, wobei die gespeicherten Daten in Abhängigkeit vor der Benutzung und dem Einsatz der jeweiligen Strahlungsquelle (5.1,5.2,5.3) in zeitlichen Abständen aktualisiert werden.
Abstract:
The present invention relates generally to the field of biochemical laboratory. More particularly the invention relates to more reliable, intelligent instrumental features of equipment used as e.g. fluorometers, photometers and luminometers. The object of the invention is achieved by providing an optical measurement instrument where a selectable optical component is identified by the measurement instrument. The instrument therefore has means for identifying an optical component by e.g. reading a code from the component. The object is also achieved by a changeable/selectable optical component such as optical module or filter for a measurement instrument, the component comprising a readable identification means. The identification comprises information on the type/properties of the optical component so that the components suitability for a selected measurement can be verified.