Beioptics Technology Co., Ltd

Beijing Institute of Spacecraft System Engineering

Beijing Orion Star Technology Co., Ltd.

Ak Optics Technology Co., Ltd.

Huang, Jinyin

Li, Guoguang

Zhang, Hongxing

Man, Guanglong

Liu, Dongxiao

Wang, Shuai

Li, Jingtuzhi

Guoguang Li

Tao Liu

Wei Xiong

Shuai Wang

Xiao Dong Li

Yang Xia

Fuxiang Li

Xiao Li

Edgar Genio

Tiezhong Ma

Hongxing Zhang

Guanglong Man

Gaozeng Cui

Qingyang Guo

Yan Xiaolang

Dongxiao Liu

Jingtuzhi Li

Xiaolang Yan

Langfeng Wen

Jiangyan Zhao

Jinyin Huang

The present disclosure provides a positive-pressure-withstanding high-power flat evaporator, processing methods thereof and a flat loop heat pipe including the evaporator. The evaporator includes a housing, and reinforcing ribs and a capillary wick which are positioned inside the housing, and the arrangement of the reinforcing ribs can ensure that the strength of the whole evaporator is capable of withstanding positive pressure. The capillary wick is composed of four parts, namely, an evaporating wick, a heat insulating wick, a sealing wick and a transfer wick. Through the large permeability of the transfer wick, liquid supply with low flow resistance can be realized, the heat transfer capability of the loop heat pipe is greatly improved, and the problems of long liquid supply path and large flow resistance caused by a large-area evaporator are solved.

Positive-pressure-withstanding high-power flat evaporator, processing methods thereof and flat loop heat pipe based on evaporator

Provided in embodiments of the present application are a method and apparatus for user registration and electronic device. The method includes: after obtaining a wake-up voice of a user each time, extracting and storing a first voiceprint feature corresponding to the wake-up voice; clustering the stored first voiceprint features to divide the stored first voiceprint features into at least one category, wherein, each of the at least one category includes at least one first voiceprint feature which belongs to the same user; assigning one category identifier to each category; storing each category identifier in correspondence to at least one first voiceprint feature corresponding to this category identifier to complete user registration. The embodiments of the present application can simplify the user operation and improve the user experience.

Method and device for user registration, and electronic device

A method for conducting optical measurement using a full Mueller matrix ellipsometer, which belongs to the technical field of optical measurements. The optical measurement method comprises: constructing an experimental optical path of a full Mueller matrix ellipsometer; conducting complete regression calibration on the full Mueller matrix ellipsometer; placing a sample to be measured on a sample platform, and obtaining an experimental Fourier coefficient of the sample to be measured; and according to the experimental Fourier coefficient of the sample to be measured, obtaining information about the sample to be measured. Since a calibration method for the full Mueller matrix ellipsometer is not only simple in operation process, but also makes full use of data of the full Mueller matrix ellipsometer measured at the same time, the introduced error is relatively small and the parameter obtained by calibration is more accurate, so that the measurement result is more accurate when the sample to be measured is measured. Thus, the process of the optical measurement method is simplified.

Method for conducting optical measurement usingfull Mueller matrix ellipsometer

A hot-press sintering method to prepare a loop heat pipe evaporator includes: putting a shell of the evaporator into a mould, uniformly and compactly filling corresponding positions in the mould with material powders of an evaporation core, a heat insulation core and a transmission core, applying a pressure high enough to tightly fit the evaporation core and the transmission core to the shell at corresponding sintering temperatures of powder materials for the evaporation core and the transmission core, carrying out hot-press sintering for molding, carrying out cooling after metallurgically bonding the powder materials of the evaporation core and the transmission core, and carrying out demolding to obtain the loop heat pipe evaporator, wherein the mould is provided with corresponding structures shaped like steam channels on positions where the evaporation core is provided with the steam channels.

Preparation method of loop heat pipe evaporator

A kind of normal incidence broadband spectroscopic polarimeter which is easy to adjust the focus, has no chromatic aberration, maintains the polarization and has simple structure. The normal incidence broadband spectroscopic polarimeter can make the probe beam normal incidence and focus on the sample surface by using at least one flat reflector element to change propagation direction of the focused beam. Moreover, the normal incidence broadband spectroscopic polarimeter contains at least one polarizer as to measure the anisotropy or non-uniform samples, such as three-dimensional profile and material optical constants of thin films consisting of the periodic structure. An optical measurement system including the normal incidence broadband spectroscopic polarimeter is also provided.

Normal incidence broadband spectroscopic polarimeter and optical measurement system

Disclosed is a normal-incidence broadband spectroscopic polarimeter containing reference beam, comprising a light source, a first reflecting unit, a first concentrating unit, a second concentrating unit, a polarizer, a first curved mirror, a first planar mirror, a second reflecting unit and a probing unit. Also disclosed is an optical measurement system, comprising the normal-incidence broadband spectroscopic polarimeter containing reference beam. The normal-incidence broadband spectroscopic polarimeter containing reference beam achieves an integral combination of the light beams after splitting, can maintain the polarization state of the light beams while increasing the light transmission efficiency, and has a low complexity.

Normal-incidence broadband spectroscopic polarimeter containing reference beam and optical measurement system

An oblique incidence broadband spectroscopic polarimeter which is easy to adjust the focus, achromatic, maintains the polarization and has simple structure is provided. It comprise at least one polarizer (P, A), at least one curved reflector element (OAP, OAP, OAP, OAP) and at least two flat reflector elements (M, M). By utilizing the flat reflector element, the oblique incidence broadband spectroscopic polarimeter can change the propagate direction of beam, and compensate the polarization changes caused by the reflective focusing unit, make the polarization of beam passed the polarizer unchanged when obliquely incident and focus on the sample surface. The oblique incidence broadband spectroscopic polarimeter can accurately measure the optical constants of sample material, film thickness, and/or the critical dimension (CD) properties or three-dimensional profile for analyze the periodic structure of the sample. An optical measurement system including the oblique incidence broadband spectroscopic polarimeter is also provided.

Broadband polarization spectrometer with inclined incidence and optical measurement system

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Beijing, China

Guoguang Li