24 results about "Optical barrier" patented technology

The invention relates to a cover for an endoscope tip, comprising at least one optical termination element and a shaft, the termination element comprising at least one light-guiding region and at least one image-guiding region, at least one optical barrier being formed between the at least one light-guiding region and the at least one image-guiding region by at least one separation element.

Described herein are techniques to reduce or remove the impact of secondary path photons and / or charge carriers on storage bins of an integrated device to improve noise performance, and thus, sample analysis. Some embodiments relate to optical rejection techniques such as including an optical barrier positioned to block at least some photons from reaching the storage bins. Some embodiments relate to electrical rejection techniques such as including an electrical barrier configured to block at least some charge carriers from reaching the storage bins along at least one secondary path. Some embodiments relate to an integrated device in which at least one storage bin is shaped and / or positioned relative to the photodetector to facilitate receipt of some charge carriers (e.g., fluorescent emission charge carriers) and / or photons and to impede receipt of other charge carriers (e.g., noise charge carriers) and / or photons.

OPTICAL BARRIER INSTALLATION DEVICE FOR ELEVATORS Device (100) for installing an optical barrier (B) for elevators comprising a main containment body (200) defining a first containment chamber (C1) and a second containment chamber (C2). The device (100) further comprises an optical barrier (B) integrated into said first containment chamber (C1) and an adjustment system configured, in use, to adjust the positioning of the main containment body (200) inside the elevator. The adjustment system comprises an extruded adjustment profile (300) extending between a first end (300a) and a second end (300b) and housed inside the second containment chamber (C2). The extruded adjustment profile (300) is movable in sliding extraction or retraction from said second containment chamber (C2) between a maximum extraction position and a minimum extraction position.The adjustment system further includes a locking mechanism configured to block the sliding of the extruded adjustment profile (300) so as to maintain the extruded adjustment profile (300) in an adjustment position between the minimum extraction position and the maximum extraction position.

A non-invasive biosignal measurement device based on skin effect removal, includes: a signal measurement instrument measuring a PPG signal of a measurement subject in contact with the skin on one side of a specific body part of the measurement subject; a signal reception unit receiving the PPG signal from the signal measurement instrument; and a ratio value calculation unit removing noise due to a skin effect from the PPG signal, and then calculating ratio values at different wavelengths for measuring a biosignal including blood sugar and glycated hemoglobin of the measurement subject. The signal measurement instrument includes a first sensor module including an optical barrier and a second sensor module for removing the skin effect.

Mobile computing devices often incorporate a digital camera module to capture photographs and / or record video using one or more built-in digital cameras and photoflash LEDs. The photoflash LEDs are separated from the digital cameras and sensors within the digital camera module to provide an optical barrier therebetween. To aid the physical separation, a flat translucent window over the digital cameras is typically not shared with the photoflash LEDs. Such separation efforts are visually and tactilely evident to a user and introduce gaps that can be a source of moisture and / or particulate entry into the computing device. The presently disclosed technology introduces a common flat translucent window over the digital camera and photoflash LEDs within the digital camera module. Features adopted into the shared flat translucent window provide sufficient optical separation between the photoflash LEDs and the nearby cameras within the digital camera module.

Area protection (1) for a general cargo warehouse (2), wherein the general cargo warehouse (2) comprises a safety area (3) for storing general cargo (4), wherein the safety area (3) has a first extension x and a second extension y, and wherein at least two transport devices (5) for moving general cargo (4) into and / or out of the safety area (3) are arranged along the extension of the first extension x at a minimum distance a from each other, characterized in that the first extension x is at least partially secured by means of at least two opposing laser scanners (6) with an optical barrier (7) for the purpose of personal safety, wherein the laser scanners (6) can be controlled in such a way thatthat, depending on control commands for at least one transport device (5), a recess (8) can be temporarily created in the optical barrier (7) in the area of ​​the first transport device (5-1) and / or the area of ​​the second transport device (5-2) for the transport of unit loads (4).

Device for spatial representation, comprising - an image display unit (1) with image elements x(i,j) arranged in a grid with rows (j) and columns (i), on which information from at least two views A(k) with k=2,...,N and N a natural number can be represented, - a lenticular disk (4) arranged in the viewing direction of a viewer (3) with lenticular (5) and separation areas (6) arranged side by side, alternately and periodically along a main direction, wherein the lenticular areas (5) define directions of light propagation for light coming from the image elements x(i,j), whereby the viewer (3) from a multitude of viewing positions in front of the grid of image elements x(i,j) sees with one eye at least predominantly a first selection from the views A(k) and with the other eye at least predominantly a second selection from the views A(k), thus creating a spatial visual impression for the viewer (3), - an optical barrier structure (7) arranged in the direction of the viewer's gaze (3) in front of the image display unit (1) to improve the spatial visual impression, - wherein the barrier structure (7) consists of opaque areas arranged next to each other, in front of or behind the lenticular disc (4) with the effect of a strip-shaped barrier, - wherein each opaque area at least partially covers one separation area (6). - characterized by the fact that - in a first alternative, the barrier structure (7) is applied to a separate barrier carrier substrate (8) located between the image display unit (1) and the lenticular disc (4) or - in a second alternative, a transparent cover (11) is arranged in front of the lenticular disc (4) from the direction of a viewer (3), on the side of which facing away from the viewer (3) the barrier structure (12) is applied.

An apparatus includes an optoelectronic module including a light emitting die and a light receiver die mounted on a PCB substrate. The optoelectronic module further includes an optical element on the light emitting die and an optical element on the light receiver die, the optical elements being composed of a first epoxy. A second epoxy laterally surrounds and is in contact with respective side surfaces of the light emitting die, the light receiver die and the optical elements, wherein the second epoxy provides an optical barrier between the light emitting die and the light receiver die. A method of manufacturing such modules is described as well.

One aspect of the present disclosure provides an optical film having a first film substrate and a coating layer formed on the first film substrate. The coating layer of the optical film contains a binder resin and fine particles having an average particle diameter of 0.5 [mu] m or more and 10.0 [mu] m or less and a standard deviation of the particle diameter being less than 1 / 2 of the average particle diameter.

The embodiment of the invention provides a commercial kitchen oil filter screen for a UVC exhaust fume collecting hood, and relates to the technical field of oil fume purification equipment. The oil filter screen comprises a top layer, a middle plate and a bottom layer, the top layer and the bottom layer are both V-shaped corrugated plates with opposite opening directions; the middle plate is an adaptive corrugated plate with ventilation holes; the three-layer structure key adopts a staggered stacking mode, so that wave crests and wave troughs of the middle plate and wave crests and wave troughs of the top layer and the bottom layer are mutually shielded in the vertical direction. The zigzag airflow channel is formed by the multi-layer staggered V-shaped structure, so that the oil fume interception efficiency is remarkably improved, and the removal rate can reach 92% or above; meanwhile, the staggered structure forms an optical barrier without a straight-through path, UVC ultraviolet light beams in the exhaust fume collecting hood can be completely prevented from leaking out, and personnel safety is guaranteed; in addition, due to the streamline design, low-wind-resistance and low-noise operation is guaranteed. The air purifier is reasonable in design structure, high in purification efficiency, good in safety and convenient to produce and assemble.

The utility model provides an optical barrier film with excellent peep-proof performance. The optical barrier film comprises a base material layer and a grating shading layer arranged on the upper portion of the base material layer in a matched mode. The grating shading layer comprises a first grating layer, a second grating layer, a third grating layer and a fourth grating layer which are arranged in sequence; the structures of the first grating layer, the second grating layer, the third grating layer and the fourth grating layer are the same; the first grating layer comprises a grating base layer and a plurality of transverse shading strips extending upwards from the grating base layer; the transverse shading strips are arranged in parallel and are sequentially arranged from the leftmost side of the grating base layer to the rightmost side of the grating base layer; the transverse shading strips are arranged at a preset inclination angle, and the inclination included angle between the transverse shading strips and the grating base layer ranges from 45 degrees to 65 degrees, so that illegal shooting, confidential information leakage and candid shooting of displayed content can be effectively prevented in practical application, and the effect of shielding a mobile phone camera is achieved.

A device includes an optoelectronic module comprising a light emitting die and a light receiver die mounted on a PCB substrate. The optoelectronic module also includes an optical element on the light emitting die and an optical element on the light receiver die, the optical elements being composed of a first epoxy resin. A second epoxy resin laterally surrounds and contacts respective side surfaces of the light emitting die, the light receiver die, and the optical elements, wherein the second epoxy resin provides an optical barrier between the light emitting die and the light receiver die. Methods for manufacturing these modules are also described.

A light emitting structure includes one or more optical barriers which may have some gaps or discontinuity in order to decrease the amount of light absorbed by the optical barrier. The optical barrier may have a gap in the vertical direction between it and the substrate, or between it and the top of a side coat, or both. The optical barrier may have a gap or discontinuity in the horizontally direction, so that it does not fully surround the LED or phosphor horizontally. This may increase the light extraction efficiency of the light emitting structure.

A multi-optic system has a unitary lens with two or more co-molded individual optics molded such that each individual optic is adjacent at least one other individual optic, each individual optic configured to be illuminated with a respective radiation source, and a skirt extending from a perimeter of the front surface of the unitary lens. An optical-blocking barrier is positioned between adjacent individual optics and configured to prevent transmission of undesired source emissions between the adjacent individual optics. A substrate on which radiation sources are carried and at least one of the skirt and the optical-blocking barrier enclose the multi-optic system.

The present invention relates to an illuminable laminated sunroof (100) for a vehicle having an optical barrier coating (5) on a non-fluoropolymer transparent film (5 ') within a laminated interlayer (3).

The invention provides a high-resolution high-brightness naked eye light field 3D display screen which is composed of a micro display screen array, an optical barrier array, a projection lens array, a collimating lens array and a micro lens array. A micro-image array displayed on the micro-display screen array is optically amplified by the projection lens array, and an amplified seamlessly spliced micro-image array is formed in front of the collimating lens array. Light beams of the seamless splicing micro-image array are collimated by the collimating lens array, and emergent light beams of the seamless splicing micro-image array are collimated light beams carrying micro-image array information. The collimated light beam is modulated by the microlens array, and a 3D image is reconstructed in space. The pixel density of the micro display screen is high, the seamless splicing micro image array formed after projection amplification has high pixel density, the voxel size of the 3D image accurately reconstructed by the collimated light beam is small, and the 3D image has high resolution. The brightness of the micro display screen is high, the light transmittance of the projection lens array, the light transmittance of the collimating lens array and the light transmittance of the micro lens array are high, the luminous flux of the micro display screen array is fully utilized, and a reconstructed 3D image has high brightness.

There is provided a wearable device (600), comprising: a housing having a back cover (607); an optical mask on first portions of the back cover (607); the back cover (607) including a set of windows positioned around a central portion of the back cover (607), wherein: a first subset of windows (645) in the set of windows is defined by an absence of the optical mask on second portions of the back cover (607); and a second subset of windows (650) in the set of windows is inset in a set of openings in the back cover (607), wherein windows the second subset of windows (650) are arranged to alternate with windows of the first subset of windows (645); an optical barrier (687) surrounding each window in the second subset of windows (650); a set of light emitters configured to emit light through at least some of the windows in the set of windows; and a set of light detectors configured to receive light through the second subset of windows (650).

A light emitting structure includes one or more optical barriers which may have some gaps or discontinuity in order to decrease the amount of light absorbed by the optical barrier. The optical barrier may have a gap in the vertical direction between it and the substrate, or between it and the top of a side coat, or both. The optical barrier may have a gap or discontinuity in the horizontally direction, so that it does not fully surround the LED or phosphor horizontally. This may increase the light extraction efficiency of the light emitting structure.

The invention relates to a physiological monitoring system for measuring blood oxygen concentration. A wearable device is described. The wearable device includes a housing having a back cover and an optical shield on a first portion of the back cover. The back cover includes a set of windows, where a first subset of windows of the set of windows is defined by a second portion of the back cover that is free of the optical shield thereon, and a second subset of windows of the set of windows is inserted into a set of openings in the back cover. An optical barrier surrounds each window of the second subset of windows. A set of light emitters is configured to emit light through at least some of the set of windows. A set of light detectors is configured to receive light passing through at least some of the set of windows.

The utility model discloses an optical chip packaging structure, which is applied to the technical field of chip packaging. According to the utility model, the light absorption coating is added on the upper surface of the receiving chip, and the light absorption coating can reduce the reflection of light on the surface of the receiving chip or the transparent plastic package layer, so as to reduce the crosstalk in the package; and meanwhile, the transparent plastic package layer forms a notch at the position of part of the light absorption coating, so that the area of a crosstalk channel can be reduced, and the bulge of the light-proof bracket is arranged in the notch, so that light can be further blocked, and a traditional optical barrier can be replaced. Wherein the light absorption coating is added on the surface of the receiving chip and can be realized at a wafer end in batches, so that the efficiency can be improved and the cost can be reduced; in addition, the notch can be formed in a mode of forming a groove through cutting or mold pressing, and a mode of forming a groove through built-in optical barriers is replaced, so that the packaging operation process can be reduced, the difficulty can be reduced, the production efficiency and the yield can be improved, and the purpose of reducing the cost can be achieved.

There is provided a wearable device (600), comprising: a housing having a back cover (607); an optical mask on first portions of the back cover (607); the back cover (607) including a set of windows positioned around a central portion of the back cover (607), wherein: a first subset of windows (645) in the set of windows is defined by an absence of the optical mask on second portions of the back cover (607); and a second subset of windows (650) in the set of windows is inset in a set of openings in the back cover (607), wherein windows the second subset of windows (650) are arranged to alternate with windows of the first subset of windows (645); an optical barrier (687) surrounding each window in the second subset of windows (650); a set of light emitters configured to emit light through at least some of the windows in the set of windows; and a set of light detectors configured to receive light through the second subset of windows (650).

An optical package structure is provided. The optical package structure includes a carrier, an optical transmitter, an optical receiver, an optical barrier, and an insulating structure. And the optical transmitter and the optical receiver are arranged above the carrier. The optical barrier is above the carrier and between the optical transmitter and the optical receiver, wherein the optical barrier defines a cavity. The cavity is filled with the insulating structure, and the elevation of the top surface of the insulating structure is lower than that of the top surface of the optical barrier relative to the surface of the carrier.

OPTICAL BARRIER INSTALLATION DEVICE FOR ELEVATORS Device (100) for installing an optical barrier (B) for elevators comprising a main containment body (200) defining a first containment chamber (C1) and a second containment chamber (C2). The device (100) further comprises an optical barrier (B) integrated into said first containment chamber (C1) and an adjustment system configured, in use, to adjust the positioning of the main containment body (200) inside the elevator. The adjustment system comprises an extruded adjustment profile (300) extending between a first end (300a) and a second end (300b) and housed inside the second containment chamber (C2). The extruded adjustment profile (300) is movable in sliding extraction or retraction from said second containment chamber (C2) between a maximum extraction position and a minimum extraction position.The adjustment system further includes a locking mechanism configured to block the sliding of the extruded adjustment profile (300) so as to maintain the extruded adjustment profile (300) in an adjustment position between the minimum extraction position and the maximum extraction position.

The utility model discloses a down lamp which comprises a shell (502) with an opening in one end. The LED PCB is arranged in the shell and comprises a first group of LEDs (514) arranged on the periphery of the LED PCB and a second group of LEDs (516) arranged in the middle of the LED PCB; a front ring (510) disposed on the LED PCB to form an optical barrier between the first set of LEDs (514) and the second set of LEDs (516); at least one diffuser disposed on the open end of the housing, comprising: a first diffuser portion (508) disposed above the first group of LEDs (514) to allow light from the first group of LEDs (514) to exit in a peripheral direction; and a second diffuser portion (512) disposed above the second group of LEDs (516) to allow light from the second group of LEDs (516) to exit.