168results about How to "Easy to diverge" patented technology

A low-scatter polarization-preserving multilayer viewing screen. A substrate D, preferably a volume diffuser, for increasing the divergence of information-coded-light while preserving its polarization sense A as it passes therethrough has a discrimination of at least 2:1 within a viewing zone. An absorbing polarizer on one or both sides of D and aligned to pass polarization state A. In one embodiment, there is provided a polarization-state phase-shift layer for modifying the polarization state of forward-scatter and / or back-scatter that total internally reflects within the viewing screen into the state opposite of A. The phase-shift layer being located at any position between the polarizer and an outermost surface of the viewing screen through which said information-coded light passes.

The present invention provides long life optics for a modular, high repetition rate, ultraviolet gas discharge laser systems producing a high repetition rate high power output beam. The invention includes solutions to a surface damage problem discovered by Applicants on CaF2 optics located in high pulse intensity sections of the output beam of prototype laser systems. Embodiments include an enclosed and purged beam path with beam pointing control for beam delivery of billions of output laser pulses. Optical components and modules described herein are capable of controlling ultraviolet laser output pulses with wavelength less than 200 nm with average output pulse intensities greater than 1.75×106 Watts / cm2 and with peak intensity or greater 3.5×106 Watts / cm2 for many billions of pulses as compared to prior art components and modules which failed after only a few minutes in these pulse intensities. Techniques and components are disclosed for minimizing the potential for optical damage and for reducing the pulse energy density to less than 100×10−6 J / cm3. Important improvements described in this specification have been grouped into the following subject matter categories: (1) Solution to CaF2 surface damage discovered by Applicants, (2) description of a high power ArF MOPA laser system, (3) description of beam delivery units, (4) polarization considerations (5) a high speed water-cooled auto shutter energy detector module and (6) other improvements.

Various embodiments involving structures and methods for illumination can be employed, for example, in projectors, head-mounted displays, helmet-mounted displays, back projection TVs, flat panel displays as well as other optical systems. Certain embodiments may include prism elements for illuminating, for example, a spatial light modulator. Light may be coupled to the prism in some cases using fiber optics or lightpipes. The optical system may also include a diffuser having scatter features arranged to scatter light appropriately to produce a desired luminance profile. Other embodiments are possible as well.

An airfoil family for a helicopter rotor blade, designated SC362XX. SC362XX essentially removes the large lower surface suction peak associated with ‘drag creep’ at moderate lift coefficients while reducing the peak Mach number and shock strength at high lift / Mach number conditions. Another optional airfoil family for use at inboard regions of the helicopter rotor, which is designated SC3252XX airfoil family, is a relatively thicker airfoil section that includes a significant increase in thickness forward of the 30% x / c location to provide a relatively thick and rigid inboard section. The lift coefficient at which the drag divergence Mach number was optimized is the same in both families thereby readily providing application to a single rotor blade.

We describe a touch sensitive holographic image display device for holographically projecting a touch sensitive image at an acute angle onto a surface on which the device is placed. The device includes holographic image projection optics comprising at least one coherent light source illuminating a spatial light modulator (SLM), output optics to project a hologram onto an acute angle surface, and a remote touch sensing system to remotely detect a touch of a location within or adjacent to the holographically displayed image. A control system is configured to provide data defining an image for display, to receive detected touch data, and to control the device responsive to remote detection of a touch of a the displayed image.

The invention discloses an LED and a dispensing method of LED fluorescent powder. The dispensing method comprises the steps of: A, providing a bearing seat and an LED blue light chip, and fixing the LED blue light chip on the bearing seat through primer; B, respectively connecting the positive and the negative electrodes of the LED blue light chip with the positive and the negative electrodes of the bearing seat by using wires; C, mixing the fluorescent powder, nano powder and silicon gel according to a preset proportion to form fluorescent gel, and uniformly stirring; D, carrying out vacuumizing defoaming treatment on the fluorescent gel to eliminate remained gases in the fluorescent gel formed through mixing; E, coating the fluorescent gel on a dispensing position on the surface of the LED blue light chip at a dispensing height; and F, heating and curing the fluorescent gel coated on the surface of the LED blue light chip. The method has better effect on improving excitation efficiency of the fluorescent powder, uniformity of emitted light distribution and consistency of color temperature.

The invention relates to a skeleton type photoelectric composite cable and a manufacturing method thereof. The skeleton type photoelectric composite cable comprises a skeleton and an outer sheath wrapping the skeleton. The skeleton type photoelectric composite cable is characterized in that two sides of the skeleton are respectively provided with a skeleton groove whose radial section is a circle or a large semicircle, optical communication units are arranged in the skeleton grooves in a laying manner, and power supply conducting wires are arranged at the upper side and the lower side of the skeleton. According to the cable, optical units and electric units are integrated so that wiring space resources are greatly saved, the construction cost is reduced, the structural setting is reasonable, the size is small, the optical cable is flexible and light, the optical communication units in the optical cable are easily separated and continued, the mechanical performance, the weather resistance, and the flexibility performance are excellent, and the optical cable can be applied to indoor and outdoor applications. The manufacturing method is simple and reasonable, the quality and the process are easily controlled, the production efficiency is high, and the manufacturing cost is low.

The invention discloses a glance proof display. The glance proof display comprises a liquid crystal display panel. The back side of the liquid crystal display panel is provided with a collimating light realization module, wherein the collimating light realization module adjusts most ray of light sent from a backlight to collimating light and then shots; a function and a dimmer film are arranged between the liquid crystal display panel and the collimating light realization module, wherein the function is capable of switching between narrow visual angle glance proof state and broad visual angle glance state through switching between transparent state and milled state, and the dimmer film adjusts effect strength of glance proof through different translucent gray scale progressive state. The glance proof display is capable of realizing fast switch between narrow visual angle glance proof state and broad visual angle glance state and has good glance proof effect.

We describe a holographic image projection system for projecting an image at an acute angle onto a surface, the system including: a spatial light modulator (SLM) to display a hologram; an illumination system to illuminate said displayed hologram; projection optics to project light from said illuminated displayed hologram onto said surface at an acute angle form said image; and a processor having an input to receive input image data for display and an output to provide hologram data for said SLM, wherein said processor is configured to: input image data and convert this to target image data; generate from said target image data hologram data for display as a hologram on the SLM to reproduce a target image; and wherein said target image is distorted to compensate for said projection of said hologram at an acute angle to form said image.

A lens structure of a light emitting diode (LED) is provided, which includes a body. An outer surface of the body is formed by connection of an edge of a light input surface and an edge of a light output surface. A recess is formed convergently on the central part of the light input surface toward the light output surface. A divergent plane is formed on the end position of the recess. The divergent plane is a round surface with a radius of 0.05 mm to 1 mm. The divergence of the central light emitting from the LED is reinforced via the light output surface, and the amount of the central light emitting from the LED is limited by the area of the divergent plane. Accordingly, the difference of luminous intensity between the central part and the edge of the lighting area can be improved, thereby providing effects of uniform illumination.

The invention relates to the field of a potting adhesive and particularly relates to a low-viscosity heat-conduction electronic potting adhesive applicable to each electronic element and a preparation method thereof. The heat-conduction electronic potting adhesive is formed by a component A and a component B in a weight ratio from 100: 90 to 100: 110; the component A comprises the following raw materials in weight percentage of 39.20-79.60% of heat-conduction inflaming retarding powder, 0.80-2.00% of color matching agent, 0.40-1.00% of silane coupling agent, 16.20-43.80% of liquid silicon oil and 3.00-14.50% of silane cross-linking agent; and the component B comprises the following raw materials in weight percentage of 39.20-79.60% of heat-conduction inflaming retarding powder, 18.00-57.80% of liquid silicon oil, 0.20-1.00% of silane coupling agent, 1.00-1.96% of color matching agent and 0.04-1.00% of catalyst. The low-viscosity heat-conduction electronic potting adhesive has lower viscosity, excellent mobility, good heat-conduction performance and high inflaming retarding grade; the potting requirement of a seam less than 0.02 mm can be met and the construction is convenient; and after the heat-conduction electronic potting adhesive is cured, the strength is good, and the dustproof, moisture-proof and vibration-proof performances are good, the electronic element can be effectively protected and the service life of the electronic element is prolonged.

A system and method for biomolecular sensing are disclosed. The system includes a receptor for a target, a source of p-polarized light positioned to direct light toward the receptor in a manner effective to result in a condition of near perfect interference in the absence of target binding; and a detector positioned to measure any light reflected from the front and back surfaces of the coating. The receptor includes a substrate and a translucent coating on the substrate having front and back surfaces, wherein the incident angle for one of the substrate / coating interface and the medium / coating (probe) interface is greater than its Brewster angle and the incident angle for the other interface is less than its Brewster angle.

A turbine airfoil includes an internal cooling circuit between opposite pressure and suction sidewalls. The pressure sidewall includes a row of outlet slots for the circuit separated by converging partitions. Each slot includes an inlet, throat, and diverging outlet. Each of the partitions includes a step in a converging sidewall thereof for increasing divergence of the slots to diffuse coolant discharged therethrough.

The invention discloses a precipitation prediction method based on a weather radar echo time series image. According to the method, a direct correlation between a basic reflectance value and an imagegray value is proposed, two reasonable assumptions are made at the same time and corresponding calculation models are established, two basic reflectivity gray-scale images adjacent to each other in time are subjected to echo body motion feature calculation, then the superimposed calculation is carried out on a moving velocity vector field of a time-series image through a convolution function, according to the principle that the more remote the generation time of a moving velocity vector is, the smaller the influence on the current and the future is, a gray-scale image change prediction model to predict the shape and intensity of a future gray-scale image, and the precipitation prediction based on radar data is achieved. According to the method, the accuracy of a precipitation prediction result for an echo subject with long-term prediction aging and a discontinuous spatio-temporal change is obviously improved.

A damping control device for a hybrid vehicle is provided that make it possible to suppress behavior that differs from a request of a driver. The damping control device includes a controller that calculates an amount of change in a target driving torque, and calculates an amount of change in a target motor torque. The damping control device also includes a damping rate variation unit that sets the damping of a feed forward control unit to a first damping rate when the target driving torque change amount and the target motor torque change amount both are positive or negative, and to a second damping rate, which is smaller than the first damping rate, when the target driving torque change amount and the target motor torque change amount have opposite positivity or negativity.

The invention discloses an LED lamp with bulbs convenient to replace. The LED lamp with the bulbs convenient to replace comprises a cross plate and a lampshade, wherein the lampshade is arranged at the bottom of the cross plate, the left side, located in the inner cavity of the lampshade, of the bottom of the cross plate is fixedly connected with a vertical rod, the bottom of the vertical rod is fixedly connected with a first lamp holder, and the right side of the first lamp holder is movably connected with a second lamp holder through a rotating shaft. According to the LED lamp with the bulbsconvenient to replace, clamping grooves, through holes, pushing rods, return springs and pushing plates are matched and used, so that the clamping movement of clamping rods on the clamping grooves can be relieved, and LED lamp bodies can be replaced conveniently; grooves, fixing springs, fixing plates and the clamping rods are matched and used, so that the lampshade can be clamped; the vertical rod, the first lamp holder, the second lamp holder and an electric telescopic rod are matched and used, so that light aggregation and divergence can be adjusted; and therefore, the LED lamp has the advantages that the bulbs can be replaced and the light can be gathered and dispersed, moreover, the applicability of the LED lamp is improved, and people can conveniently use the LED lamp.

A planar light source device (100) for a display device includes a light guide plate (120) and pluralities of light emitting diodes (110). The light guide plate has a light incident surface (121). The light emitting diodes are located in the vicinity of the light incident surface. Each light emitting diode has a light emission surface opposite to the light incident surface of the light guide plate, and has a diffraction grating (117) provided on the light emission surface for improving a range of divergence of light beams emitted therefrom.

The invention provides a deeply-integrated navigation method for an acquisition phase of deep space exploration. The deeply-integrated navigation method comprises a preparation stage and a filter stage, wherein in the preparation stage, a rail dynamic model, a direction measuring model, a distance measuring model and a speed measuring model of a deep space explorer are established; in the filter stage, an extended Kalman filter is utilized for filtering; a state transfer model in a navigation filter is the rail dynamic model; selection of measuring models in the navigation filter comprises selecting the direction measuring model or the speed measuring model when distance measuring information is not obtained within a pulse observation period, and compensation is carried out on a pulse signal received by an X-ray sensor; when pulse signal accumulation is completed and distance measuring information is obtained, the distance measuring model is selected; the navigation filter utilizes the distance measuring model to obtain a position and a speed vector needed by navigation. According to the deeply-integrated navigation method, Doppler deviation of pulse arrival time is inhibited, filter convergence is realized, positioning precision is high, and the requirements on the sensor are very low. Therefore, the deeply-integrated navigation method has important practical significance on self-navigation of a spacecraft.

A method of creating a hybridized chip having at least one top active device coupled to an electronic chip where a top active device is combined with an electronic chip having electronic chip contacts, when at least some of the top active device contacts are not aligned with at least some of the electronic chip contacts, and each of the at least some top active device contacts has an electrically corresponding electronic chip contact. The method involves creating sidewalls defining openings in the substrate, extending from the first side at the active device contacts to the bottom fo the substrate opposite the first side, at points substantially coincident with the active device contacts; making the sidewalls electrically conductive; and connecting the points and the electronic chip contacts with an electrically conductive material.

The invention relates to a lighting apparatus comprising a laser (102) for emitting a first laser beam (103) and a diffractive reflective element (104). The first laser beam (103) is reflected by the diffractive reflective element (104) for generating a second laser beam (105) being the reflected first laser beam, wherein the diffractive reflective element (104) is adapted such that the effective surface area of the second laser beam (105) is larger than the effective surface area of the first laser beam (103). The second laser beam is supposed to be pointed directly or indirectly to the eyes of a person. Since the diffractive reflective element increases the effective surface area and is used in a reflective mode, i.e. the first laser beam will generally not directly meet the eye of the person, if the diffractive reflective element is damaged or displaced, the risk of eye damages can be reduced.

Techniques for generating partially coherent radiation and particularly for converting effectively coherent radiation from a synchrotron to partially coherent EUV radiation suitable for projection lithography.

The invention relates to a laser microdissection system (100), comprising a microscope (10). The microscope comprises a reflected-light device (76), a microscope objective (41), and a laser unit (70). A beam path (b) of a laser beam of the laser unit (70) extends through the reflected-light device (76) and through the microscope objective (41) and intersects with an object plane (15) of the microscope objective (41) at an adjustable point of intersection. An electrophoresis unit (90) having an electrophoresis gel (91) is attached, or can be attached by means of coupling elements (35), below the object plane (15), wherein the electrophoresis gel (91) has at least one gel pocket (92) and the laser microdissection system (100) comprises positioning means (96) for positioning the electrophoresis gel (91) in parallel with the object plane (15) and in relation to a defined reference position, such that dissectates (99) of a sample (51) that can be arranged in the object plane (15), which dissectates are obtained by means of the laser beam of the laser unit (70), can be captured in the at least one gel pocket (92). The invention further relates to a corresponding electrophoresis unit (90) and an examination method.

The invention relates to an energy-saving variable-frequency industrial electric appliance control cabinet, and belongs to the frequency conversion control cabinet technical field. The energy-saving variable-frequency industrial electric appliance control cabinet comprises a cabinet body, one side of the cabinet body is provided with an opening and a door body closing the opening, cooling water pipes are respectively fixed on two side inner walls of the cabinet body, the side wall of the cabinet body far away from the opening is provided with a ventilation grating communicated with the outside, and the inner wall of the cabinet body far away from the opening is fixed with a heat conduction sheet; a circulating water tank is arranged at the bottom of the cabinet body, two ends of the cooling water pipe are respectively communicated with the circulating water tank, and circulating water pumps are respectively arranged at the water inlet end and the water outlet end of the cooling water pipe; the energy-saving variable-frequency industrial electric appliance control cabinet further comprises a temperature detection module and a temperature control module; the temperature detection module detects the temperature in the cabinet body, the temperature control module recognizes and judges a temperature detection signal, and when the detected temperature value is larger than a water cooling temperature set value, the temperature control module controls the circulating water pump to be started to work. In the daily use process, the heat dissipation efficiency of the interior of the cabinet body is high, and energy is saved.

The invention discloses a heat fin, which comprises two side panels, a frame for connecting the two side panels, a capillary structural layer and a phase changing working medium, wherein the two side panels and the frame form a hollow thin-plate shell; the capillary structural layer is closely attached onto the inner wall of the shell; the phase changing working medium is sealed in the shell; a local part of the edge of each side panel or a local part of the frame is used as an evaporation area, and the rest part of each side panel or the rest part of the shell is used as a condensation area. Due to the adoption of the heat fin, the area of a steam conveying passage, the reflux width of the liquid working medium and the direct heat radiation area of the condensation area are increased, the distance from the center of the evaporation area to the edge of the evaporation area is shortened, the heat conduction limit is greatly improved, and a higher heat flow density is obtained.