摘要:
Embodiments provide an optical sensor head and method of making an optical sensor head. In some cases the sensor head can be used as a fluorometric sensor to measure concentrations of substances within a liquid sample of interest. The sensor head includes a light source window and a detector window that transmit light between the sensor head and an analytical area. In some cases the windows include a ball lens positioned within a channel such that the ball lens and the channel create a seal between the interior and exterior of the sensor head.
摘要:
The present invention relates to an oil mist detecting device (1) that can reduce the intensity of undesired reflected light to prevent the deterioration of detection accuracy. The oil mist detecting device (1) is one that includes a container (6, 6a, 6b) having: a containing space (7, 7a, 7b) containing a light emitting element (4) and a light receiving element (5); and an introduction space (8) into which oil mist is introduced, and detects the oil mist by in the container (6, 6a, 6b), irradiating the oil mist with light emitted from the light emitting element (4) and receiving light reflected or scattered by the oil mist by the light receiving element (5). In addition, the oil mist detecting device (1) includes a lens (9, 15, 16) that separates between the containing space (7, 7a, 7b) and the introduction space (8) and is formed with a bottom-equipped groove (18) opened on a containing space side. Further, the lens (9, 15, 16) has a first light guiding region (19a) adapted to guide the light emitted from the light emitting element (4) to the introduction space (8) as one part resulting from division by the bottom-equipped groove (18), as well as, as the other part resulting from the division by the bottom-equipped groove (18), having a second light guiding region (19b) adapted to guide the light reflected or scattered by the oil mist to the light receiving element (5).
摘要:
A device including an optical measuring device and an optical system which can measure the light intensity of the scattered light from the sample and the spatial distribution of the scattered light and which is excellent in the sensitivity is provided. In the device, the image distortion is suppressed by providing such a structure that the light emitted from the first substance is reflected by the ellipsoidal mirror two or more even times before reaching the second substance. The image distortion is suppressed by arranging two ellipsoidal mirrors so that respective one focuses are set to a common focus while remaining other two focuses are arranged on one line so as to be opposite to each other across the common focus, setting the common focus to a blank, arranging a first substance on one of the focuses, and arranging a second substance on the other of the focuses.
摘要:
A multi-beam LIDAR optical system, that in one example includes a plurality of single mode optical fibers configured to transmit and receive light beams, and a plurality of lenses configured to collimate and focus the light beams between the plurality of single mode optical fibers and an entrance pupil of the system, wherein the system is configured to transmit and receive the light beams over an angular field of view of at least 5°.
摘要:
A forehead thermometer has a body (10), a detecting unit (20) and a point light source (40). The detecting unit (20) and the point light source (40) are mounted adjacent to each other and are mounted in a front end (101) of the body (10). A first convex lens (30) is mounted between the detecting unit (20) and the front end (101) of the body (10) to focus the infrared energy from the forehead to the detecting unit (20) so that the measuring precision is enhanced and also provides focusing effect within a limited space. Therefore, the forehead thermometer is lighter and smaller.
摘要:
The present invention relates to a luminaire comprising an array of LEDs emitting light of at least one color, and a control system for controlling the light output of the luminaire. The control system comprises photosensor array for detecting light output of the luminaire. An imaging unit is arranged in front of the photosensor array such that it maps an image of said array of LEDs on said photosensor array. The photosensor array is divided into subareas each detecting light output from a single one of the LEDs. The control system uses the output of the subareas for controlling the luminaire light output. Thus, it is possible to act on different LED light colors or the light output of individual LEDs without having to separate them in time by means of a time pulsing method.
摘要:
The optical probe contains a monolithic body (14) of optically transparent material to perform focusing for a plurality of parallel light paths from one or more fibers (10,12) to one or more object points (19). Surface parts (160,164,180,182) of the monolithic body are curved to form lenses (164,182) and/or coated with a reflective coating (160,180). On a fiber side of the monolithic body an opening or openings (168,164) are provided in a reflective coating opposite the tip or tips of the fibers (12,10) to pass light. On the object side of the monolithic body, a coated surface part (180) reflects the light path from the openings back to the fiber side of the monolithic body, from where the light path is reflected towards an aperture on the object side. At least part of the reflecting surfaces is curved to form reflector a plurality of distinct lenses on the same side of the monolithic body.
摘要:
The optical sensor (100) comprises a rotating device which rotates beam direction of emergent light pulses about a rotation axis oriented at right angles to a beam direction, and a control and evaluation unit (90) which controls a light source (20), evaluates detected light pulses and determines the distance of object using a measured transit time of light pulses. The rotating device includes a rotor (40) and a stator (30). The light source, a detector (50), and an electronic assembly (92) forming part of the control and evaluating unit are disposed for joint rotation on the rotor. The detector detects light pulses reflected by objects in the observed region. The light source emits emergent light pulses into the observed region.
摘要:
Die vorliegende Erfindung betrifft einen optischen Sensor nach dem Laufzeitprinzip mit einer Lichtquelle zum Aussenden von Sendelichtpulsen in einen Überwachungsbereich, mit einer Dreheinrichtung zum Drehen einer Strahlrichtung der Sendelichtpulse um eine quer zu der Strahlrichtung orientierte Rotationsachse, mit einem Detektor zum Nachweisen von Lichtpulsen, die von Objekten im Überwachungsbereich zurückgestrahlt werden, und mit einer Steuer- und Auswerteeinheit zum Ansteuern der Lichtquelle, zum Auswerten der von dem Detektor nachgewiesenen Lichtpulse und zum Bestimmen eines Objektabstands aufgrund einer gemessenen Laufzeit der Lichtpulse. Der optische Sensor ist dadurch gekennzeichnet, dass die Dreheinrichtung einen Rotor und einen Stator aufweist und dass die Lichtquelle, der Detektor und eine elektronische Baugruppe, die Teil der Steuer- und Auswerteeinheit ist, zum gemeinsamen Rotieren auf dem Rotor angeordnet sind.