8 results about "Optical barrier" patented technology

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.

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.

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 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 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.