6results about How to "Avoid reflections" patented technology

The utility model relates to cleaning equipment technical field, concretely relates to a kind of positionable display screen support, including support column and display screen main body, adjustable inner support is slidably sleeved in the support column, the inner support top is fixed in display screen main body bottom surface by bolt, support column bottom rotatably sleeve joint is limit seat, the limit seat fixed sleeve is set on support cross bar, the support column of limit seat both sides rotatably sleeve is set on support cross bar, by positionable rotating support structure, after the operation of display screen main body is completed, by the way of pressing control button, after support column rotates to with two locking grooves alignment, control locking insertion rod is inserted into locking groove and is locked, and locking and canceling operation are more labor-saving and convenient, in the operation after meeting the display screen main body adjustable to backlight, avoid display screen main body reflection, also ensure the firmness of display screen locking when cleaning robot is cleaned.

This invention discloses a patterned substrate and its fabrication method, as well as an epitaxial wafer for a light-emitting diode (LED), relating to the field of semiconductor optoelectronic devices. The patterned substrate includes a substrate body, a metal reflective layer, and multiple pyramidal protrusions. The substrate body has a first surface and a second surface disposed opposite to each other; the metal reflective layer covers the first surface; the multiple pyramidal protrusions are uniformly distributed on the metal reflective layer; each pyramidal protrusion includes a first AlN layer and a SiO2 layer sequentially stacked on the metal reflective layer. Implementing this invention can improve the luminous efficiency of the LED.

The utility model discloses a lamp shade, car light and vehicle, the lamp shade of vehicle includes base piece and transparent piece, is provided with the light transmission hole on the base piece, is equipped with the shelter step on the base piece, the transparent piece sets up on the light transmission hole, the rim of transparent piece abuts on the shelter step, the transparent piece has the body part and the convex part of interconnection, and the convex part extends along from the center to the edge of transparent piece, the body part passes through the light transmission hole, and the light of the lamp pearl in the lamp shade transmits through the body part and base piece and irradiates to the outside, and the convex part abuts on the shelter step. The light directly irradiates on the shelter step after transmitting through the transparent piece, owing to the rim of shelter step and transparent piece abut, make the color of transparent piece and shelter step blend into one, avoid the light irradiation to the inner wall of base piece and leave the mark on the transparent piece, and then avoid the surface of lamp shade appears the phenomenon of reflection or bright strip, so that the user judges whether the car light is opened.

The application provides an integrated quantum bit output link and relates to the technical field of input / output device links. The application aims to solve the problem that the space is limited during quantum bit transmission, and efficient heat treatment is difficult to achieve. The integrated quantum bit output link comprises three circulators, a load, a Josephson parametric amplifier and a connector. The load is arranged on the three circulators and is used for absorbing reverse transmission signals. The Josephson parametric amplifier is internally provided with the connector, and the Josephson parametric amplifier is connected with the three circulators through the connector. The integrated quantum bit output link can maintain good performance in a super low temperature environment, achieves the effects of high integration, high heat conduction and magnetic shielding, is easy to assemble and mass-produced, and effectively reduces the volume of the integrated quantum bit output link.

This utility model relates to a dust sensor that reduces stray light. The dust sensor includes a housing, a light-emitting element, a light-receiving element, and a circuit board. The housing has a partition wall dividing it into a circuit board area and a detection area. A dust passage is located within the detection area. The circuit board is mounted in the circuit board area. The partition wall has light-emitting holes and light-receiving holes corresponding to the light-emitting element and the light-receiving element, respectively. A gap is maintained between the light-emitting element and the light-emitting hole. The circuit board area also has a light-shielding plate extending vertically downward from the housing, corresponding to the light-emitting element. The light-receiving element is embedded in the light-receiving hole. Within the detection area, vertically penetrating light-shielding walls are provided on both sides of the light-receiving element, connecting to the partition wall. The ends of the light-shielding walls extend towards the dust passage. The gap prevents stray light inclined to the optical axis of the light-emitting element from entering the detection area. The light-shielding walls also protect the light-receiving element. This utility model can reduce stray light without the need for a lens, thus reducing assembly costs and difficulty, and improving assembly efficiency.

The application discloses a kind of fair-faced concrete wall crack repair methods, comprising: preparation bonding slurry, the bonding slurry includes epoxy resin base fluid, curing agent and nano calcium powder filler;The bonding slurry is full irrigation in the crack of fair-faced concrete wall;Along the length direction of the crack, the accommodation groove is opened in the outer side of the fair-faced concrete wall, the position of the accommodation groove corresponds to the position of the crack;Lay anti-cracking mesh on the groove bottom of the accommodation groove, the opposite sides of the anti-cracking mesh are overlapped on the opposite sides of the crack;Fill the fine aggregate concrete layer in the accommodation groove, anti-cracking agent and anti-cracking fiber are mixed in the fine aggregate concrete layer;Coat elastic protective layer on the outer side of the fine aggregate concrete layer.The application solves the existing repair method of fair-faced concrete wall surface, and the problems that the repair effect is not durable and secondary cracking is prone to occur.