Abstract:
There is provided an image acquisition device including a light source configured to emit laser light and to be capable of controlling a wavelength of the laser light, a measurement unit configured to scan a sample using the laser light and to measure an intensity of measurement target light from the sample by receiving the laser light, and a control unit configured to generate an image of the sample based on intensity distribution of the measured measurement target light. The control unit controls a wavelength of the laser light based on the intensity distribution of the measured measurement target light.
Abstract:
Provided are a multi-channel fluorescence detecting module and a nucleic acid analysis system including the multi-channel fluorescence detecting module. The nucleic acid analysis system includes: a plurality of loaders configured to accommodate a plurality of cartridges respectively, the cartridges comprising microfluidic devices; a transfer module including a linear actuator, the linear actuator including a movable unit configured to move linearly; and a fluorescence detecting module fixed to the movable unit, the fluorescence detecting module being configured to emit excitation light to the cartridges and detect fluorescence emitted from samples on the cartridges. The loaders are arranged in a row in a linearly moving direction of the movable unit.
Abstract:
An optical system for detecting light from a 2D area of a sample (36) comprises a collection lens (34) for collecting light from a collection region of the sample. A light detector (44) is positionally fixed with respect to the sample, and a reflector arrangement (61) directs collected light to the detector. The reflector arrangement comprises movable components and the collection lens (34) is movable relative to the sample. The collection lens and the movable components are configurable to define different collection regions, and the movement of the components effects a direction of the light from the collection region to a substantially unchanged area of the light detector (44). This arrangement avoids the need for a bulky detector in order to detect signals from a 2D sample area formed by scanning across the sample.
Abstract:
Systems and techniques for characterizing samples using optical techniques are described. Light may be incident on a sample in the form of a pre-defined pattern which impinges on a wafer surface, and a reflection of the pattern is detected at a detector. Information indicative of changes in the pattern after reflection may be used to determine one or more sample characteristics and/or one or more pattern characteristics, such as stress, warpage, and curvature. The light may be coherent light of a single wavelength, or may be light of multiple wavelengths, and the pattern may be generated by transmission of the light through a diffraction grating, or hologram. The light source may be incoherent or multi-wavelength, and the pattern may be generated by imaging a pattern disposed on a mask on the sample and re-imaging the pattern at the detector.
Abstract:
A mapping-measurement apparatus for applying mapping measurement to a predetermined area on a surface of a sample, comprising: a light illumination unit for illuminating the sample with light; a photodetector for detecting, through an aperture, reflection light or transmission light coming from the sample; and a detection-side scanning mirror provided in the optical path from the sample to the aperture. The aperture restricts light to be detected by the photodetector only to light coming from a given measurement portion only on the surface of the sample. The detection-side scanning mirror is structured such that the direction of a reflection plane thereof can be changed. The direction of the reflection plane of the detection-side scanning mirror is changed with respect to the incident direction of the reflection light or the transmission light coming from the sample to change the measurement portion on the surface of the sample where measurement is performed by the photodetector.
Abstract:
A part scanning and part calibration apparatus and mechanism for the inspection of printed circuit boards and integrated circuits include a camera and two rotating mirrors to scan an image of a pattern mask retical upon which a precise pattern has been deposited. Small parts are placed upon the retical to be inspected. The third overhead mirror is provided to view the part under inspection from another perspective. The scene of the part is triangulated and the dimensions of the system can thus be calibrated. A precise retical mask is provided with dot patterns which provide an additional set of information needed for calibration. By scanning more then one dot pattern the missing state values can be resolved using an iterative trigonomic solution.
Abstract:
A process, apparatus and heat microscope for testing the properties of materials by the photothermal effect includes generating a laser beam with a laser light source integrated into a portable measuring head, emitting the laser beam toward a region of a surface of a material sample to be tested, and focussing the laser beam to a desired measurement point diameter at a target light spot with optics at an end toward the laser beam, for absorbing a proportion of the amount of light energy with irradiated volume elements of the material sample and emitting infrared light signals from the surface of the volume elements and volume elements adjacent thereto. The emitted IR light signals are conducted to an optical decoupling element for conducting the emited IR light signals further and largely suppressing components of the laser beam reflected at the surface of the sample. Decoupled IR light signals are further conducted and focused onto receiving surface of at least one IR light detector inside the portable measuring head for converting received IR light signals into corresponding electrical signals for further signal processing. The laser beam is conducted from the laser light source to the optical element at the end of the laser beam with a first resulting degree of transmission and reflection of at least 60%, and the IR light signals emitted by the material sample are conducted to the at least one IR light detector with a second resulting degree of transmission and reflection of at least 60%.
Abstract:
Die Erfindung betrifft eine Packung (1) mit einem Schraubverschluss (2) umfassend einen Hals (7) sowie eine Verschlusskappe (9) mit einer Seitenwand (10). Der Hals (7) weist einen ersten Abschnitt (14) mit einem ersten Durchmesser (15) und einen zweiten Abschnitt (17) mit einem zweiten Durchmesser (18) auf, wobei der erste Durchmesser (15) kleiner ist als der zweite Durchmesser (18). Der zweite Abschnitt (17) ist einem Packungsvolumen näher als der erste Abschnitt (14). Die Verschlusskappe (9) weist einen in etwa parallel zu der umlaufenden und von der Seitenwand (10) beabstandet nach innen versetzten Dichtring (23) mit einem Dichtwulst (26) auf. Der Dichtring (23) erstreckt sich bei geschlossenem Schraubverschluss (2) über den ersten Abschnitt (14) des Halses (7) hinaus in Richtung Packungsvolumen, sodass dieser zumindest teilweise in den zweiten Abschnitt (17) des Halses (7) hineinreicht. Weiters betrifft die Erfindung auch noch einen Schraubverschluss (2), eine Verschlusskappe (9) sowie ein Verfahren zur Herstellung eines derartigen Schraubverschlusses (2).
Abstract:
Vorrichtung zur Untersuchung eines Objekts (15) mit einem Laser (10) und mit einem Linsen und/oder Spiegel aufweisenden, bildvergrößernden optischen System (11) zur Detektion von in dem Objekt (15) gestreuten Licht, als optisches Signal, wobei das optische System (11) eine Schnittstelle (19) für die Verbindung mit einem Spektrographen (16) oder einem optischen Filter (20) oder einer die Lichteinfallsdauer begrenzenden Vorrichtung (21) aufweist und/oder das optische System (11) integral mit zumindest dem Spektrographen (16) oder dem optischen Filter (20) oder der die Lichteinfallsdauer begrenzenden Vorrichtung (21) ausgebildet ist, wobei für eine variierbare Einstellung eines Winkels (α) zwischen dem Laserstrahl (L) und der Längsachse (0) des optischen Systems (11) oder für eine variierbare Einstellung eines Abstandes des Laserstrahls (L) zu der Längsachse (0) des optischen Systems (11), eine Ablenkeinrichtung (13) angeordnet ist.
Abstract:
A medical imager, primarily for use in oral and dental applications. The imager has a source for providing a plurality of collimated beams of non-ionising radiation, in particular near-infrared light, and a plurality of correlated detectors. Each detector is arranged to receive unscattered light from one or part of one of said collimated beams and scattered light from one or more other beams. The imager further comprises means for using both the unscattered and scattered light to form an image.