852 results about "Light barrier" patented technology

An optical proximity sensor is provided that comprises an infrared light emitter an infrared light detector, a first molded optically transmissive infrared light pass component disposed over and covering the light emitter and a second molded optically transmissive infrared light pass component disposed over and covering the light detector. Located in-between the light emitter and the first molded optically transmissive infrared light pass component, and the light detector and the second molded optically transmissive infrared light pass component is a substantially optically non-transmissive infrared light barrier component. The infrared light barrier component substantially attenuates or blocks the transmission of undesired direct, scattered or reflected light between the light emitter and the light detector, and thereby minimizes optical crosstalk and interference between the light emitter and the light detector.

The invention facilitates Sleeping in sitting position by supporting and/or the body (torso) of a person in various positions. This invention combines one or more of: straps, sound barrier, light barrier, Headrest and backrest to improve the Sleeping.

The invention discloses an automatic laser detector for railway wheel sets and a method for automatically detecting wheel sets by using the same. The detector comprises a wheel set measuring mechanism, a vertical lifting mechanism, a rotating mechanism, an aligning impetus-turn mechanism and a wheel set stopping mechanism, wherein the wheel set measuring mechanism comprises a shaft body measuring mechanism, a light barrier, a left wheel tread measuring mechanism and a right tread measuring mechanism; the vertical lifting mechanism comprises a base, a lifting cross beam provided with a V-shaped base, a cylinder, an upper shaft neck measuring device and a lower shaft neck measuring device; the wheel set rotating mechanism comprises a friction wheel device, a speed reduction motor, a swing arm, a pressure spring device and a wheel set rotating mechanism base; the aligning impetus-turn mechanism comprises an aligning device and a push wheel device; the wheel set measuring mechanism is arranged on a stand and is used for measuring the parameters of wheel parts of the wheel sets; and the actions of the measuring mechanism, the wheel set vertical lifting mechanism, the wheel set rotating mechanism, the aligning impetus-turn mechanism and the wheel set stop mechanism are controlled by an operation control system. The detector and the method for automatically detecting the wheel sets by using the detector have the advantages of high precision and high speed.

Disclosed is an installation for competitive play with an ice hockey stick and an ice hockey puck. The installation includes a game platform, a goal with targets, target identifiers and a computer. A computer controlled puck circuit includes a puck magazine (30), a passing unit (46) which feeds pucks (1) to a player (40), a conveyor apparatus (2) which sorts and conveys shot pucks (1) into the puck magazine (30). The points value of shots made by the player (40) are evaluated with the help of a light barrier A (48) and a light barrier B (49), a camera (50) und a corresponding underlying computer program and the points assigned form the basis for a competitive play which can be played over the international data network.

The invention relates to a device for measuring a torque and power of a photoelectric non-contact rotation shaft. The device mainly consists of a controller (11), a computer (12), at least two photoelectric encoders and photoelectric switches, wherein the photoelectric encoders are arranged on a measured rotation shaft (1); each photoelectric encoder corresponds to one photoelectric switch and is provided with a plurality of uniformly distributed transparent holes and a light barrier; the computer is connected with the output interface of the controller through a serial data wire; the measurement signal input end of the controller is connected with the photoelectric switches through lead wires respectively; and signals output from all the photoelectric switches are logically calculated and processed in the controller, and transmitted to the computer so as to display curves of the torque and the power with the time variation in a display (13) or a liquid crystal screen (14). The device for measuring the torque and the power of the photoelectric non-contact rotation shaft can be used for online measurement for long time and is not contacted with the measured rotation shaft, so errors caused by the measurement environment can be restrained; and the device is convenient to install, can be widely used and has the advantages of high precision and durable stability.

The invention discloses a device for monitoring sleep and screening obstructive sleep apnea syndrome. The device comprises a sleep pillow and an FGB (Fiber Bragg Grating) sensor fixed at an appointed position of a bed, wherein the sleep pillow is internally provided with a reflective photoelectric sensor for monitoring an artery at the neck of a human body; a degree of blood oxygen saturation and a pulse wave signal are obtained by utilizing a photoelectric detecting principle; physiological information of blood oxygen and pulse wave of a testee can be obtained by virtue of amplifying, de-noising and separating the signal; the sleep pillow is internally provided with a 2*2 array microphone for collecting snore information when the person sleeps. The FGB pressure sensor fixed at the appointed position corresponds to the chest of the testee and is used for collecting respiration and movement signals of the human body. The device realizes non-contact type measurement for respiration, pulse, snore and movement signals of the testee, avoids influence from excessive electrodes to natural sleep of the testee when sleeping, can monitor sleep at a whole night of the testee, and provides important parameters for screening obstructive sleep apnea syndrome.

The invention discloses a display panel and a manufacturing method thereof as well as a display device. The display panel comprises an array substrate, pixel define layers and organic light emitting structures, wherein the array substrate comprises a plurality of thin film transistors; the pixel define layers are positioned on the array substrate; the organic light emitting structures are surrounded by the pixel define layers and are of top emission structures. The display panel also comprises light barrier layers which are positioned between the array substrate and the pixel define layers; the light barrier layers stop light penetrating through the pixel define layers from irradiating to the thin film transistors. According to the display panel disclosed by the invention, the light barrier layers are arranged between the array substrate and the pixel define layers and can be used for stopping the light penetrating through the pixel define layers from irradiating to the thin film transistors in the array substrate, so that leakage current of the thin film transistors caused by light excitation can be reduced, and further the stability of the thin film transistors can be improved.

A measurement setup to determine hitting parameters of a golf club includes a group of reflectors with at least two strip-shaped reflectors with retroreflective surfaces applied to the golf club shaft. The group of reflectors is attached to the club shaft with a detachable, yet tight clamp-connection. At least three retroreflective areas are arranged in a determined geometry at the club shaft and/or at the group of reflectors. At least one first reflective light barrier sends its beam at a right angle to the ideal swing path of the club head near the tee and/or the golf ball at the group of reflectors. During the penetration of the beam the three strip-shaped retroreflective surfaces elicit temporally staggered pulse-shaped signals that the receiver of the first reflective light barrier receives and which it transmits to the data acquisition device. A calibration setup is also provided.

An optical sensor device, according to an embodiment of the present invention, includes a light source and a light detector. The light source includes one or more light emitting elements, and the light detector includes one or more light detecting elements. A first opaque light barrier portion, between the light source and the light detector, is configured to block light from being transmitted directly from the light source to the light detector. A second opaque light barrier portion, extending from the first opaque light barrier portion in a direction towards the light source, is configured to reduce an amount of specular reflections that would occur if a light transmissive cover plate were placed over the optical sensor device.; A third opaque light barrier portion, extending from the first light barrier portion in a direction towards to the light detector, is configured to reduce an amount of specular reflections that would be detected by the light detector, if a light transmissive cover plate were placed over the optical sensor device.

The invention discloses a super-resolution differential interference phase contrast microscopic imaging system. The system comprises a microscope, a light source, a first lens, a first reflecting mirror, a spatial light modulator, a third lens, a light barrier, a fourth lens and a charge coupled device (CCD), and the microscope is provided with a differential interference phase contrast imaging module. Simultaneously, the invention further discloses a microscopic imaging method based on the imaging system. According to the imaging system and the imaging method, extra sample preparation processes are not required, photobleaching effects and phototoxicity effects are absent, and the imaging contrast ratio is high.

The invention provides a light filter capable of preventing a camera module from generating stray light, a camera module employing the light filter, and a manufacturing method of the light filter. The camera module comprises a lens, a support for fixing the lens, a light filter arranged under the lens, and an image sensor arranged under the light filter. The light filter comprises an infrared cut-off light filter and a light barrier film. The light barrier film is arranged on the infrared cut-off light filter, and the light barrier film is provided with a window in the middle so a transparent area is formed in the middle of the infrared cut-off light filter and a light barrier area is formed outside the transparent area.

The invention provides a novel mobile phone camera module automatic test machine which comprises a control panel, a test area and a work machine frame, wherein a work table top and a keyboard support are arranged in the middle of the work machine frame. The test area comprises a test position and a test light source located above the test position, the test position is arranged on the work table top, the test position comprises a reset switch, a starting switch, a display signal device, a test main board, a tank chain, a product fixing mechanism, an X-Y horizontal-movement sliding platform, a light barrier, a sliding rail, a sliding sleeve and a limiting sensor, the sliding sleeve can freely slide on the sliding rail front and back, the X-Y horizontal-movement sliding platform is fixed on the sliding sleeve, and the test main board is fixed on the X-Y horizontal-movement sliding platform. Automatic test of a mobile phone camera module, comprising MTF test, stain test, damaged point test, noisy point test, VCM curve test, color uniformity and luminance uniformity test, and the like is ahieved through the novel mobile phone camera module automatic test machine. The novel mobile phone camera module automatic test machine is high in test efficiency, and suitable for modules of different pixel levels.

The invention discloses an ultra-high resolution optical microscope imaging method and device. In the technical scheme, a special lighting illumination and microscope imaging method combining narrow-band filtering, annular aperture and dark-filed illumination is adopted, and annular transmitting apertures with different numerical apertures, transmittances and filtering characteristics are designed, so that the ultra-high resolution and high-contrast microscope imaging on a micro-nano-sized substance can be realized. The device comprises a high-resolution optical microscope system consisting of an LED (light-emitting diode) lighting source, a light barrier, an annular transmitting hole, a condensing lens, a sample platform, a light-shading wafer, a microscope objective and a microscope image collecting and processing system, wherein the microscope image collecting and processing system consists of a CCD (Charge Coupled Device) image sensor, an imaging collecting card and a computer. The invention can maintain the real-time, direct and non-scanned imaging observation way of conventional optical microscopes, and also embodies excellent resolution and imaging contrast.

A method for monitoring two or more movable objects in a monitoring region. A substantially horizontal light barrier grid having a plurality of parallel light barriers monitors the region. To permit a plurality of objects to simultaneously move in the monitored region without deactivating the monitoring function of the system, the system controls an entry area for the objects, the size of the objects as well as the distance between the objects to ascertain that predetermined criteria therefor are met. If one or more of these criteria is not met, a control signal is generated which can be used, for example, to deactivate the machinery and/or prevent access to the monitored region.

The present invention provides a package structure of an optical apparatus which includes a substrate, a light emitting device, a light sensing device, and a light barrier member. The light emitting device is disposed on the substrate and electrically connected to the substrate. The light emitting device is for emitting light. The light sensing device is disposed on the substrate and is a chip scale package (CSP) device. The light sensing device is for receiving light reflected by an object. The light barrier member is disposed around a periphery of the light sensing device.

The invention discloses a laser sensor-based welding seam automatic tracking test device and a test method thereof. The device includes a welding robot module, a laser sensor module, a welding module and a feature detection module; an RB08 welding robot produced by the Guangzhou numerical control company is adopted as the welding robot module; the laser sensor module is composed of an MTI 2D laser sensor, a light barrier and an installation support, wherein the MTI 2D laser sensor is connected with a tail end flange of a robot body through the installation support; the welding module includes a welding machine, a wire feeding structure and a welding gun; the feature detection module includes a controller and a detection unit; the laser sensor module can detect two-dimensional data of a weld groove; the detection unit selects the type of a welding seam and calls a feature recognition algorithm corresponding to the type of the welding seam, and returns a welding seam center to a robot controller cabinet; and the robot body drives the welding gun to align with the welding seam center in real time. With the laser sensor-based welding seam automatic tracking test device and the test method thereof of the invention adopted, automatic tracking of welding seams can be realized, and welding quality can be ensured.

In a vibrating microtome (1), a knife (6) is caused to vibrate during a sectioning operation in a direction parallel to a section plane and substantially parallel to the knife's edge, during which a transverse offset can occur as a consequence of a potentially present inclination of the cutting edge with respect to the section plane. A measuring device (3) for measuring the transverse offset comprises a light barrier (9) into which the cutting edge is placeable so as to partially cover the light of the light barrier. The vibrating microtome (1) generates, from the motion of the knife, a control application signal (pklo, pkhi) that describes the time course of the vibration of the knife (6), and the electronic measurement system of the measuring device (3) measures the coverage of the light barrier as a consequence of the vibration of the knife as an oscillating signal (tpm), and determines the transverse offset from the signal values at points in time that are defined by the control application signal.

An optical component system includes an optical component having a plurality of ports through which light signals exit the optical component. The system also includes a light sensor array having a plurality of light sensors. The light sensor array is coupled to the optical component such that different light sensors receive light signals that exit the optical component through different ports. The system also includes a light barrier positioned between the optical component and the light sensor array and between adjacent light sensors. In some instances, the light barrier is one of a plurality of light barriers that are each positioned between adjacent light sensors.

The invention discloses an integrating sphere device for optical measurement, relates to the technical field of optical measurement and aims to solve the problems of poor symmetry, ineffective heating control of a light source and non-adjustable flux of a sampling port existing in the conventional integrating sphere device structure. A first half integrating sphere shell and a second half integrating sphere shell of the device are fastened together to form a hollow sphere shell; a central light barrier is fixed at the central position of a joint surface of the first half integrating sphere shell and the second half integrating sphere shell; a joint between an adjustable light source and the first half integrating sphere shell is provided with a sampling hole; a slit device is fixed between the adjustable light source and the sampling hole; a stray light eliminating device is fixed on the second half integrating sphere shell through a screw thread; a position on which the second half integrating sphere shell is fixed with the stray light eliminating device is provided with a light emitting hole; and a detection hole is formed on the lower part of the light emitting hole on the second half integrating sphere shell. The integrating sphere device is suitable for fields such as the measurement of the radiation quantity of a light-emitting diode (LED) or various lamps, color measurement, fluorescence spectroscopy and the like.

The invention provides a combined device for small-angle and wide-angle X-ray scattering and an experiment test method of the combined device. The device adopts a microfocus X-ray source used for providing parallel, high-brightness and high-quality X-rays. Three four-knife-edge-slit collimating light paths are arranged to precisely define the light spot pattern and filter off stray lights. A one-dimensional linear detector and a two-dimensional multi-wire gas detector are combined to respectively detect wide-angle and small-angle X-ray scattered signals so as to obtain a material structure from 0.1 nanometers to 100 nanometers. Different lengths of vacuum pipes and different sizes of direct light barriers are arranged in the device, so that the device can adjust the distance between a sample and the detector and can ensure high luminous flux and spatial resolution of the scattered signals under the premise of meeting the requirement on angle testing. The device provided by the invention has the advantages of large test range, easiness in adjustment and so on, and is very suitable for in-situ detection, so that the device is a good tool for studying high polymer materials, inorganic nano-materials, biomedical materials, other soft materials and so on.