Abstract:
Ein Nephelometriesystem (1) für ein Analysegerät mit mindestens einer Lichtquelle (8), mindestens einer Aufnahmeposition (4) für eine Messzelle (2), mindestens einer Lichtumlenkvorrichtung (14) und mindestens einem Fotodetektor (6), wobei die Lichtquelle (8), die Aufnahmenposition (4) der Messzelle (2), die Lichtumlenkvorrichtung (14) und der Fotodetektor (6) derart angeordnet sind, dass ein von der Lichtquelle (8) ausgehender Lichtstrahl nach dem Durchtritt durch die Messzelle (2) mittels der Lichtumlenkvorrichtung (14) umgelenkt wird und teilweise auf den Fotodetektor (6) trifft, dadurch gekennzeichnet, dass die Lichtumlenkvorrichtung (14) mindestens einen ersten Teilbereich (30, 30', 30") und einen zweiten Teilbereich (34, 34') aufweist, und wobei sich der erste Teilbereich (30, 30', 30") und der zweite Teilbereich (34, 34') in mindestens einer optischen Eigenschaft unterscheidet.
Abstract:
A fluorescence detecting apparatus (100) includes: an excitation light emitter (1) for emitting excitation light exciting a fluorescent material onto a measurement object; an illumination light emitter (2) for emitting illumination light onto the measurement object (20); an image pickup device (50) for sensing light from the measurement object (20); and a controller (8) for controlling the image pickup device (50), the excitation light emitter (1), and the illumination light emitter (2). The excitation light is emitted from the excitation light emitter (1) onto the measurement object (20) to define an image pickup condition of the image pickup device (50), based on an image pickup result to be obtained by sensing light from the measurement object (20) by the image pickup device (50). A light amount of the illumination light to be emitted from the illumination light emitter (2) is set depending on the image pickup condition. The excitation light, and the illumination light of the set light amount are simultaneously emitted from the excitation light emitter (1) and the illumination light emitter (2), to cause the image pickup device (50) to sense light from the measurement object (20).
Abstract:
The invention provides an interchangeable tip-open cell fluorometer comprising: a housing and a fluorometric probe tip (10) interchangeably connected to the housing, the probe tip (10) including a probe tip housing defining an open cell (28) and enclosing a probe optical arrangement, the probe optical arrangement including an excitation source (12) and a fluorescence detector (36) wherein the excitation source is aimed at the fluorescence detector (36) such that a sample (30) in the open cell (28) can be fluorometrically detected, wherein said interchangeable tip fluorometer has an aperture (38) that is in communication with said fluorescence detector (36).
Abstract:
This invention relates to a device for determining the conversion power of conversion element, a method for performing these measurements and a method for producing pcLEDs with essentially the same color point applying said device and said method. The device comprises a light source (5), a sample holder (6) and a detector element (7), wherein the light source (5) illuminates the sample holder (6) with a primary light (41), the sample holder (6) is at least locally transparent for a primary light (41), suitable to mount the multitude of conversion elements (3) capable to partly convert the primary light (41) into a secondary light (42), and comprises suitable prevention means (62, 62a, 62b, 62c, 62d, 62e) to prevent a light guiding of the secondary light (42) from one mounted conversion element (3) through the sample holder (6) to another mounted conversion element (3), and the detector element (7) is suitable to measure the intensities of primary and secondary light (41, 42) for each conversion element (3) separately.
Abstract:
A system and method for optical spectroscopic measurements is described. One embodiment includes a measurement head for optical spectroscopic measurements, the measurement head comprising an illumination source configured to illuminate a sample, a collection optic configured to view the sample, and an internal reference, wherein the internal reference can be illuminated by the illumination source and viewed by the collection optic.
Abstract:
An optical element for measuring biological information with which a humor component in a sample to be inspected, e.g. a living body, can be easily measured noninvasively and stably with high accuracy. In the optical element having a light incident face, a contact face touching a living body and provided with a groove for allowing the living body to protrude, and a light exit face, and measuring the information of the living body optically by irradiating the living body with incident light from the light incident face, receiving the light absorbed/scattered by the living body and outputting light from the light exit face, a light transmission control means is provided at the groove section and is formed at least at a part of the wall face on the light incident face side and/or the light exit face side of the groove section from the bottom part thereof.
Abstract:
An integrated biosensing device detects emissions from a sample when illuminated. A photo detector (20) is adjacent a site for retaining the sample (40) or receiving excitation radiation for impingement on the sample (40). A reflector (10) deflects the illumination onto the sample site and substantially guides the excitation radiation away from the photo detector. By providing a reflector, a ratio of desired detection of emissions to unwanted detection of the illumination light can be improved. This can be achieved by a reduction in an amount of the illumination reaching the photo detector, and/or by an increase in the amount of illumination of the sample and thus in the amount of emissions reaching the detector. This can be achieved more cost effectively than by using a filter. The illumination can be from above or below if the substrate is transparent.
Abstract:
The present invention provides an optical element for measuring information of living body for noninvasively measuring a body fluid component in a test sample of living body with high accuracy, stability, and ease. The optical element includes a light incident surface, a contact surface contacting living body and having a groove to protrude living body and a light emission surface, in which a light incident from the light incident surface is applied to living body, and the light absorbed and scattered by living body is received and emitted from the light emission surface, a light transmittance controlling means is formed from the bottom part of the valley part of the groove, on at least a part of a wall surface of the light incident surface side and/or on a wall surface of the light emission surface side of the groove.
Abstract:
A flow cell (10) for transporting fluid in a radiant energy field includes a cell body (12) having a tube (20) extending therethrough including a radiant energy blocking portion integral therewith. In a particular embodiment, the cell body (12) includes one or more end caps (14, 16) having a protrusion (40) may be inserted into the tube (20) to create a fluid seal, the end caps (14, 16) including open channels for transporting fluid (28, 32) and radiant energy (26, 30) therethrough, and the tube (20) in the cell body (12) includes an efficient radiant energy transmission lining that is spaced from the end cap protrusions (40), thereby forming a gap volume in the flow cell open channel (18), which gap volume may be calibrated such that radiant energy losses may be standardized in respective flow cells transporting fluids having various indices of refraction.
Abstract:
The present invention is directed to the use of a light absorbing wall material (4) to eliminate stray light paths in light-guiding structures, such as those used for HPLC absorbance detection. More specifically, the present invention relates to the use of carbon-doped Teflon® AF, or 'black Teflon® AF,' for all or part of the walls of a light-guiding flowcell (2) adapted for use in HPLC absorbance detection.