Abstract:
Eine Vorrichtung zum optischen Inspizieren einer zumindest teilweise glänzenden Oberfläche an einem Gegenstand besitzt einen ersten und zumindest einen zweiten Querträger (12, 14), die jeweils einen weitgehend kreissegmentförmigen Ausschnitt (32) bilden. Die Querträger (12, 14) sind in einem Längsabstand (D) zueinander angeordnet, der eine Längsrichtung (17) definiert. Die beiden Querträger (12, 14) werden mit einer Anzahl von Längsträgern (16) in dem Längsabstand (D) gehalten. Die Längsträger (16) sind in einem definierten Radialabstand (38) zu den kreissegmentförmigen Ausschnitten (32) angeordnet. Die Querträger (12, 14) halten eine lichtdurchlässige Mattscheibe (34), die einen tunnelförmigen Inspektionsraum (36) bildet. Außerhalb des tunnelförmigen Inspektionsraums (36) sind hinter der Mattscheibe eine Vielzahl von Lichtquellen (48) angeordnet, die einzeln oder in kleinen Gruppen ansteuerbar sind, um variable HeIl-Dunkel-Muster (90) auf der Mattscheibe (34) zu erzeugen. Zumindest eine Kamera (74, 78) ist in den tunnelförmigen Inspektionsraum (36) gerichtet.
Abstract:
A device (1; 10; 20; 30; 40) for optically examining the interior of a turbid medium (5) is provided. The device comprises an illumination system (2; 12; 22; 32; 42) adapted for illuminating a turbid medium (5) to be examined and an imaging device (106) adapted for generating images from detected light. The illumination system (2; 12; 22; 32; 42) is adapted to be operable in at least a first mode in which a wide area image is acquired by illuminating the turbid medium (5) and a surrounding area. From this wide area image, the region or regions of interest (110) at which the turbid medium (5) is actually situated can be determined. Then, these regions of interest (110) can be illuminated in a second mode. Thus, no light which has not been coupled to the turbid medium (5) and which might cause overexposure of the detector unit of the imaging device (106) will reach the imaging device (106).
Abstract:
A device (1; 10; 20; 30; 40) for optically examining the interior of a turbid medium is provided. The device comprises an illumination system (2; 12; 22; 32; 42) adapted for illuminating a turbid medium to be examined and an imaging device (106) adapted for generating images from detected light. The illumination system (2; 12; 22; 32; 42) is adapted to be operable in at least a first mode in which a large area is illuminated and a second mode in which at least one selected region (110) of the large area is illuminated.
Abstract:
An apparatus and method are provided for creating an image of a microarray. The apparatus includes at least one light source configured to direct light toward the microarray. The apparatus includes an excitation filter configured to filter the light into a first frequency band towards dichromatic mirror. The dichromatic mirror reflects light onto the microarray causing the microarray to emit electromagnetic energy. The apparatus includes emission filter configured to filter the electromagnetic energy within a second frequency band. The apparatus further includes an imaging unit having a charged coupled device (CCD), the CC having an Imaging surface masked by a pinhole blind such that when the pinhole blind receives electromagnetic energy from the emission filter, an image is created of the entire microarray.
Abstract:
A planar sample, particularly of the type used in biological laboratories for detection and sometimes analysis of two-dimensional arrays of proteins, nucleic acids, or other biological species, is illuminated by epi-illumination using optically filtered line lights that are arranged along opposing parallel sides of a rectangle in which the sample array resides, with two coaxial line lights on each side of the rectangle, and the two on any given side being separated by a gap whose optimal width depends on the wavelength band transmitted by the optical filter. Surprisingly, the gap eliminates the peak in intensity at the center of the sample area and the decrease that occurs from the center outward that would otherwise occur with a single continuous filtered line light, producing instead a substantially uniform intensity along the direction parallel to the line lights.
Abstract:
An imaging system for generating images of biological samples having a surface, the system comprising: a sample support for supporting a biological sample in use; a plurality of illumination sources, the plurality of illumination sources being arranged around the sample support and each adapted to illuminate the biological sample, in use, from a different direction; an image capture device for capturing illumination which has impinged on the biological sample to thereby form an image of the sample; wherein at least one of the illumination sources direction is not perpendicular to the surface of the sample.