Chinese Version Light学术出版中心
Latest Issue
Issue 3 ， 1994
-
Micromechanism and Their Related Theory and Technology
Abstract：The micromechnism is a new scientific subject. The progress in this field is extended very quickly.This paper introduce domestic and foreign information,realistic theory and technology,achievements in this field.Keywords：Micromechanism;Theory;Technology- 42
- |
- 7
- |
- 0
Published：2020-08-12 -
Spectra Characteristics and Fluorescence lifetime of Glasses Containing Acridine Red
Abstract：The spectra and the fluorescence lifetime of glass containing acridine red were measured. Dependence between Luminescence characteristics and glass structure were analized.The studies show that organic hydrocarbone compounds can exist in inorganic glass due tolow temperature melting technology and P-F bond in glass structure.Keywords：Acridine red;Spectra Characteristics;fluorescence lifetime- 34
- |
- 6
- |
- 0
Published：2020-08-12 -
The Characteristics of Nb2O5 in the Glass Structures and Its Applications
Abstract：The results of theoretic studies about the structures and properties of niobosilicate glasses were used in the manufacturing processes of otpical glasses such as LaF2、LaF3 and LaF4 etc. The addition of Nb2O5 improves greatly the technological stability and inherent quality and increases the rate of finished product. This work gives another new way for thestudy and production of rare-earth optical glasses.Keywords：optical glass;Niobosilicate;glass structure- 36
- |
- 4
- |
- 0
Published：2020-08-12 -
Optical Transform of Gaussian Beam
Abstract：According to the concept of Gaussian optics and geometric optics,this paper analyses thetransmission principle of Gaussian beam and puts forward some design demands, analyses itsalteration characteristic for Guassian beam by an example for collimated system,finally,infers the general relation formula of spreading ratio.Keywords：Gaussian beam;Beam waist;angle of divergent;Focus;Collimation- 78
- |
- 11
- |
- 0
Published：2020-08-12 -
Investigntion of Lifetime for High-Power Xenon Sliort-Arc Lamps
Abstract：Some factors affecting lifetime of 25kW short-arc xenon lamps are described. It is includ-ed that choosing of electrode material, processing of vacuum welding and cleaning of parts.Finally, improving steps for increasing lifetime of the short-arc xenon lamp are presented.Keywords：Xenon short-arc lamp;Vacuum welding;Working lifetime- 49
- |
- 6
- |
- 0
Published：2020-08-12 -
A Calculating Way for Refractive Index of Air
Abstract：By means of Lorentg- Loreng formula,the refrective index of air are calculated for wave-lengthes from infrared(1694.52nm) to ultraviolet(234. 617nm), and the calculated accuracyis excellenter than formucla(2),and is equal to formula(1).Keywords：Air;refractive index;Calculated accuracy- 64
- |
- 6
- |
- 0
Published：2020-08-12 -
Calculation of X-Ray Laser wavelength for Ne-Like Zn Ion
Abstract：In the approach of spherical lattic cell,central-field,and relativistic Fermi statistic approximations, an average atom model is presented to calculate the wavelength of 2S→2P X-ray laser transition for Ne-Like Zn ion under the condition of high density and high temperature using the self-consistent field method.Keywords：X-ray laser wavelength;Average atom model;Fermi statistics;Pressure ionization- 39
- |
- 6
- |
- 0
Published：2020-08-12 -
Target Distinguish Between the Enemy and Ourselves Using Laser Techniques
Abstract：This paper discusses a method which uses laser techniques to distinguish targets between the enemy and Ourselves and a method which is used to modulate echowave signals.An all-direction detective system is composed of a laser transmitter and a receiver who are put on an image Stabilizing turntable and a group of laser detectors and reflecting prisms in multi-eye style. When this system receives the inquireing codes from inquireing direction(friend direction),the modulatdr in front of the reflecting prism is controlled to reflect identified codes from the reflecting prism. Then these identified codes are received and distingushedin inquireing direction (friend direction).This system is very useful for distinguishing between moving targets from air to air,air to ground, and ground to ground etc.Keywords：laser;distinguish between the enemy and ourselves- 39
- |
- 7
- |
- 0
Published：2020-08-12 -
Design of Strain Diaphragm Using in the Microbend Fiber-Optic Pressure Sensor
Abstract：This paper introduces the designing principle of strain diamphragm using in the microbend fiber-optic pressure sensor and a few diaphragms designed by author, and show thatthe relation curve between pressure and strain of diaphramgm. The relation curve is coincidewith derived theoretic result.Keywords：Microbend fiber;Strain dimphragm;sensor- 56
- |
- 5
- |
- 0
Published：2020-08-12 -
A Fast Way for Recognizing Object with Self-Learning Function
Abstract：A fast way for recognizing object with selflearning fanction based on image features andartifical intelligence is described in this paperKeywords：Knowledge;Feature;Self-Learning- 77
- |
- 11
- |
- 0
Published：2020-08-12 -
Status and Development of Infrared Image Tracking Technique
Abstract：Characteristics, status and development of infrared image tracking tecbnique is simplytheorized in this paper. Our viewpoint on using optical compound eyes and artificial neuroticnetwork technique to realize infrared tracking and infrared guide is put forward.Keywords：Infrared image tracking;Optical compound eyes;Artificlal neurotic network- 59
- |
- 7
- |
- 0
Published：2020-08-12 -
ATV System for Low Intensity Neutron Radiography
Abstract：ATV system for low intensity nentron(3～4×l03n/cm2s) radiography is described. TheTV system uses unique integral characteristics of SEC TV camera, Which convertes a low illumination(7×10-4Lx)and discrete light point picture,that cannot be seen by human eyes,into a picture which can be observed on TV monitors.Keywords：Neutron radiography;TV system;Low intensity- 59
- |
- 6
- |
- 0
Published：2020-08-12 -
Ways to Improve Operating Characteristics of MCP
Abstract：In this paper,we report and review some technical ways to further improve the characteristic of electron image and to increase the detecting ablilty of devices through lowering thenoise of MCP, decreasing the feedback of positive ions and broadening the dynamic ranges.Recent experimental results are shown and necessary analysis is made.Keywords：Microchannel plate;Background noise;quantum noise;Feedback of ions;Dynamic ranges- 45
- |
- 9
- |
- 0
Published：2020-08-12 -
The Design of a Parallel Beamsplitting Device Having Adjustable Beam-displacement
Abstract：Authors give the design of a parallel beamsplitting polarization device whose beam-displacement is not only larger but also adjustable, and supply the modern polorization technology with a new kind of parallel beamsplitting device.Keywords：Polarization;Adjustable beam-displacement;Parallel-beam splitting- 60
- |
- 9
- |
- 0
Published：2020-08-12 -
General Interface of Sensor in Photoelectric Theodolite
Abstract：This Paper discusses the necessity of using multi-sensor in the modern photoelectrictheodolite,proposes the general interface of Sensor and describes it in detail.Keywords：Electro-optic theodolite;sensors;General Interface;Main control- 53
- |
- 6
- |
- 0
Published：2020-08-12 -
An Open-loop High-precision Positioner
Abstract：Authors analyzed the virtues and defects of closed loop control system and open one re- spectively, introduiced a new way tacking advantage of computers speed and capacity to realizethe detached measuring and the real time compensation, and pointed out some key problemswhich must be solved in practice. Furthermore, gave measured data which reach the perfor-mance index of full stroke readout error≤1μm, backstroke readout error≤0.3μm, and 0.1μm distinguish ability.Keywords：Positioner;high-precision;Open-loop system- 85
- |
- 6
- |
- 0
Published：2020-08-12 -
A High-speed Mechanical Scanning System for Measuring Micro Figure
Abstract：This paper describes the structure and principle of high-speed mechanical scanning system,and analyses the errors in the system.Keywords：Micromechanism;Micro figure;Mechanical scanning- 75
- |
- 8
- |
- 0
Published：2020-08-12 -
Design of Soft X-ray Synchrotron Radiation Multilayer Reflectometer
Abstract：The characteristics of soft X-ray synchrotron radiation multilayer renectometer are analysed. The main points of designing for monochrometer system,reflectometer system,vacuum system and two double-angle mechanisms are introduced.Keywords：Synchrotron radiatien;Soft X-ray;Multilayer reflectometers- 55
- |
- 9
- |
- 0
Published：2020-08-12 -
Data Processing System for Dynamic Measurement of Grating Liner Scale
Abstract：The data acquisition and processing system for dynamic measurement of grating linearscale is described.Adopting both software and hardware,it is charactarized by small volume,cheapness, strong fumction and easy operation. The correction of both laser wavelength andtested grating linear scale and the data averaged processing are considered in the program to ensure the whole precision.Keywords：Grating linear scales;Data Processign system;laser interferometer- 63
- |
- 9
- |
- 0
Published：2020-08-12
Loading...
0