48 results about "Active surface" patented technology

An optical system, such as in a microlithographic projection exposure apparatus, comprising at least one optical element and a heating device for heating the optical element. The heating device comprises a plurality of heating segments to which electric current can be applied in order to generate heat. A continuous thermally induced deformation profile of the optical active surface having a deformation amplitude of at least 1λ can be adjusted by the heating segments so that the integral of the Fourier decomposition over at least one decadic spatial wavelength range is less than 10 mλ.

The utility model discloses a magnetic steel positioning mechanism of a decorative ring assembly, which comprises a large support, a decorative ring assembly arranged on the large support and rotatably connected with the large support, and a stepping motor driving the decorative ring assembly to rotate, the stepping motor is fixed on the large support, one end of the decorative ring assembly is fixedly provided with a rotating shaft, and the other end of the decorative ring assembly is fixedly provided with a magnet. The rotating shaft is provided with a magnetic steel assembly, and the large support is fixedly provided with a Hall sensor module matched with the magnetic steel assembly. According to the utility model, the acting surfaces of the decorative ring assembly are switched through the stepping motor, so that different shapes are presented, different light requirements are met, a dynamic effect of rotation of the decorative ring assembly is generated when the decorative ring assembly rotates, and compared with a single light effect of sequential lighting of a conventional light source, the light effect is richer.

An electronic package is provided and includes: a first circuit structure having a first surface, a second surface, and a first circuit layer; an electronic component set including a first electronic component having a first active surface and a first inactive surface, and a second electronic component having a second active surface and a second inactive surface, wherein the first inactive surface of the first electronic component is disposed on the first surface, and the second inactive surface of the second electronic component is offsetly attached to the first active surface; a packaging layer having a first packaging surface and a second packaging surface and covering the electronic component set; a second circuit structure disposed on the first packaging surface and electrically connected to the first circuit layer, the first active surface and the second active surface, respectively; and an optoelectronic component disposed on the second circuit structure.

An integrated fan-out (InFO) package includes a die, an encapsulant, and a horn antenna. The die has an active surface and a rear surface opposite to the active surface. The encapsulant laterally encapsulates the die. The horn antenna is electrically connected to the die. The horn antenna includes a top wall and a bottom wall respectively located on two opposite sides of the die and the encapsulant. A portion of the top wall is located within a span of the active surface of the die. A portion of the bottom wall is located within a span of the rear surface of the die.

The present invention provides a head-mounted display device for virtual reality, comprising a first display, a first lens, a second lens, a spectroscopic coating, and a second display. The active surface of the first display generates a first display image beam. The first lens has a first surface facing the active surface of the first display, and a second surface opposite to the first surface. The second lens has a third surface and a fourth surface opposite to each other. The spectroscopic coating is arranged between the second surface of the first lens and the third surface of the second lens. The third surface of the second lens and the second surface of the first lens are bonded to each other through the spectroscopic coating. The second display has a fourth surface with an active surface facing the second lens. The active surface of the second display generates a second display image beam.

To provide a cathode arc vapor deposition apparatus.SOLUTION: There is provided a device that comprises: a target which has a surface as an active surface for evaporation; a confinement part which confines an outer border of the target surface; an anode which has an electron reception surface, and encircles the target and confinement part at an axial distance before a target plane and the active surface; and a magnetic guide system which provides a magnetic field with the target surface parallel with at least an outer region of the target surface with lines of magnetic force inclined in parallel with or at an acute angle α to the target surface and is defined within a surface region, wherein the lines of magnetic force enter the target surface at α≤45°. The confinement part and anode are formed in a closed geometric shape and electrically insulated from each other and the target, and an inner border of the electron reception surface is defined with at least one of a radial direction having a radial distance from the middle of the target, an axial distance from the target surface to an upper border of the confinement part, and an axial distance from the target surface to a lower border of the electron reception surface.SELECTED DRAWING: Figure 1

The invention provides an optical path structure and electronic equipment, and relates to the technical field of optical signal communication. The optical path structure comprises an optical chip, a circuit base plate and a substrate. The circuit base plate is provided with a window area; the active surface of the optical chip is welded at the edge of the window area on the circuit bottom plate, and the optical chip is electrically connected with the circuit bottom plate; in the arrangement direction perpendicular to the plane of the circuit base plate, part of the optical waveguide on the end face of the optical chip is located in the projection area of the window area. Wherein the signal transmission direction of the optical chip is parallel to the plane of the circuit base plate; the target surface of the substrate is bonded and fixed on the bottom surface of the optical chip. According to the invention, the optical chip is inversely welded on the edge of the window area of the windowing on the circuit base plate, so that part of the optical waveguide can perform signal transmission in the window area in the plane direction of the circuit base plate, thereby reducing the space size required in the setting direction when the grating coupler is used for coupling, effectively improving the integration level of the device, and improving the reliability of the device. And the integration difficulty of the device is reduced.

Method for detecting discontinuities in a medium and system for implementing said method, said method comprising the step of defining a transmission sequence, wherein a plurality of transmitting transducers selected among the transducers of a probe are uniformly and randomly located on the active surface of said probe, and a time offset defined for each transmitting transducer is uniformly and randomly located within a predetermined transmission duration. Subsequently, said transmission sequence is transmitted in said medium by said plurality of transmitting transducers, the received signals are received and recorded, and said received signals are processed with a focusing law adapted to said transmitting transducers, and using said time offsets so as to thus derive a detection level.

An electronic package and an electronic package module, the electronic package comprising: a first circuit structure having a first surface, a second surface and a first circuit layer; the electronic component group comprises a first electronic component and a second electronic component, the first electronic component is connected to the first surface through a first non-acting surface of the first electronic component, and the second electronic component is arranged on the first acting surface in a bias mode through a second non-acting surface of the second electronic component; the packaging layer covers the electronic component group; the second circuit structure is arranged on the first packaging surface and is electrically connected with the first circuit layer, the first acting surface and the second acting surface respectively; and the photoelectric element is arranged on the second circuit structure. Through the implementation of the optical electronic module, the area of the electronic packaging piece serving as the optical engine can be greatly reduced, so that the number of the optical engines contained in the common packaging optical electronic module is increased, and the information transmission quantity of the electronic module is further improved.

The head-up display comprises an electro-optical display (102) and a first mirror (108, 110, 120), wherein an image (106) can be generated by means of the electro-optical display (102), which can be reflected via the first mirror (108, 110, 120) against a combiner (101), thus enabling a beam path (S) from the electro-optical display (102) to the combiner (101), and thus allowing an observer of the head-up display to perceive both the image (106) generated by the electro-optical display as a virtual image (107) and the environment behind the combiner (101) when looking at the combiner (101), and the first mirror (108, 110, 120) is designed to be rotatable about a rotation axis (109, 111, 123) to change the position of the virtual image. is, wherein the axis of rotation (109, 111, 123) is arranged outside the optical center (122) of the first mirror (108, 110, 120), characterized in that the axis of rotation (109, 111,123) is shifted from the optical center (122) of the first mirror (108, 110, 120) in front of an active surface (121) of the first mirror (108, 110, 120).

Disclosed in one example is an apparatus including a substrate, a sensor over the substrate including an active surface and a sensor bond pad, a molding layer over the substrate and covering sides of the sensor, the molding layer having a molding height relative to a top surface of the substrate that is greater than a height of the active surface of the sensor relative to the top surface of the substrate, and a lidding layer over the molding layer and over the active surface. The lidding layer and the molding layer form a space over the active surface of the sensor that defines a flow channel.

Disclosed is a method including the steps of defining a transmission sequence, in which a plurality of transmit transducers is uniformly and randomly selected among the transducers of a probe on the active surface of the probe and a time offset is uniformly and randomly defined for each transmit transducer over a predetermined transmission duration. Subsequently, the transmission sequence is transmitted in the medium by the plurality of transmit transducers, the reception signals are received and recorded and they are processed with a focal law suitable for the transmit transducers and the time offsets used in order to thus derive a level of detection.

The utility model provides an optical packaging structure, comprising an active device which is provided with an active surface and a passive surface which are oppositely arranged; a light sensor bonded to the passive surface of the active device; and the spacer is located on the passive surface of the active device, and the light sensor is located in a space defined by the spacer and the active device. The utility model aims to provide an optical packaging structure so as to improve the sensing accuracy of the optical packaging structure and reduce the size of the optical packaging structure.

A WBGA package and a method of manufacturing a WBGA package are provided. The WBGA package includes a first substrate having a first through hole and a second substrate having a second through hole over the first through hole of the first substrate. The WBGA package also includes an electronic component having an active surface over the second through hole of the second substrate.

The present invention refers to a detector and a method for obtaining Kikuchi images by using electron backscatter diffraction (EBSD) or transmission Kikuchi diffraction (TKD) technique. In particular, the present invention refers to a detector comprising a detector body, a detector head with a scintillation screen and a photodetector with a active surface for detecting Kikuchi patterns, and means configured to move the detector head with respect to the detector body. The method comprises obtaining a first and a second Kikuchi pattern, and moving the detector head after obtaining the first Kikuchi pattern and prior obtaining the second Kikuchi pattern.

The specification relates to a luminescence microscope comprising a first light source for generating an input light beam, a light modulator comprising a first active surface and a second active surface, for modulating the phase and / or amplitude of the light incident on the respective active surface, an objective lens for focusing the light into a sample so that an light intensity distribution is formed in the sample, wherein the luminescence microscope comprises a first beam displacement element for polarization-dependent generation of a first output light beam and / or a second output light beam forming an angle of less than 90°, wherein the first beam displacement element is arranged such that that the first output light beam impinges on the first active surface and the second output light beam impinges on the second active surface and a method for imaging a sample or for localizing or tracking emitters in the sample.

The invention discloses a counterweight supporting structure for adjusting the surface shape of a reflecting mirror, and the structure comprises an insert which is connected in a reflecting mirror body, and a ball socket structure is formed in the insert; the support is connected with the bottom plate through screws; the differential structure comprises a ball head sliding block, and a ball head of the ball head sliding block is matched with the ball socket structure; and the balance weight structure can form a lever fulcrum to provide radial supporting force for the reflector body. According to the balance weight supporting structure for adjusting the surface shape of the reflecting mirror, on one hand, the radial supporting force on the mirror body can be adjusted through the balance weight structure, and the gravity influence of the mirror body is completely balanced; on the other hand, the axial displacement can be finely adjusted through a differential thread structure, the adjusting precision is superior to 1 micron, and the high-low point surface shape defect of the mirror surface can be made up; compared with an existing balance weight structure or a surface-shaped active adjusting structure, the two-way adjusting composite function is achieved, and meanwhile the structure is simpler, the supporting state is stable, the adjusting precision is high, and operation is easy and convenient.

A diamond turning station having a drum able to be rotated about an axis C and a diamond tip. A piece to be machined P is installed on the drum as follows: the piece to be machined P is offset by a distance D from the rotation axis of the drum; the piece to be machined P is placed so that there is a mean angle Theta between the axis C and a cutting profile corresponding to the active surfaces, the angle Theta being as follows: Theta=arccos (D / Ry), where Ry is a radius of curvature required in the long direction of the microstructures. Next, the diamond tip is moved along the cutting profile of the microstructures, while actuating the rotation of the drum, so as to machine all the microstructures on the surface of the piece to be machined P.

A light guide plate, a backlight module and a display device are provided. The light guide plate is configured to be coupled to a light source. The light guide plate includes a light-emitting surface, a bottom surface, a light-incident surface, plural stripe-shaped microstructures and plural light guiding microstructures. The bottom surface is opposite to the light-emitting surface. The light-incident surface is connected between the light-emitting surface and the bottom surface. The stripe-shaped microstructures are disposed on the at least one of the light-emitting surface and the bottom surface, and each of the stripe-shaped microstructures has two opposing side surfaces and an active surface. The side surfaces are respectively connected to two opposite sides of the active surface. The light-guiding microstructures are disposed between any adjacent two of the stripe-shaped microstructures and arranged along an extending direction of each of the stripe-shaped microstructures.

A system for compensating for the distortion of a wavefront of one portion at least of an incident light beam comprises: —an adaptive optic for providing, via reflection from an active surface, a corrected light beam; —a mode splitter for providing a plurality of output light beams belonging to a family of target modes; —a photonic device that is optically coupled to the mode splitter, the photonic device being configured to deliver: i. a useful light beam; ii. quantities representative of the characteristics of the output light beams; —a controller of the adaptive optic, the controller being connected to the photonic device and to the adaptive optic, the controller being configured to, on the basis of the quantities, adjust the deformation of the active surface.

An aerosol-generator for an aerosol-generating device is provided, the aerosol-generator including: a surface acoustic wave atomiser including a substrate including an active surface defining at least one atomisation region, and at least one transducer positioned on the active surface of the substrate configured to generate surface acoustic waves on the active surface of the substrate; and a supply element arranged to supply a liquid aerosol-forming substrate to the at least one atomisation region, the supply element including a plurality of interconnected channels extending through the substrate between at least one inlet configured to receive a supply of the at least one liquid aerosol-forming substrate and at least one outlet positioned within the at least one atomisation region of the active surface of the substrate.

The application provides an optical element surface shape regulation and control method based on a KAN neural network, and relates to the technical field of optical element surface shape regulation and control. The method comprises the following steps: establishing an APDL parameterized finite element model of an optical element and a corresponding multi-point support system; performing finite element simulation through an APDL batch processing mode, obtaining corresponding optical surface deformation data, fitting to obtain Zernike polynomial coefficients, and constructing a sample data set; building a KAN neural network model, training the model by using the sample data set, and establishing a nonlinear mapping relationship from support force input to Zernike coefficient output; constructing an optimization objective function; and performing reverse optimization on the input support force by using a gradient optimization algorithm to obtain an optimal support force distribution for realizing target Zernike term adjustment. The application provides a high-precision, strong-decoupling and low-cost method for active surface shape correction of a high-precision optical system.

Presented herein are methods and systems for performing spectral ellipsometry (SE) measurements of semiconductor structures based on data sets resolved by wavelength, azimuth, and incidence angles. In some embodiments, a machine learning-based measurement model is trained to infer estimated values of one or more parameters of interest characterizing a measured structure based on SE measurement data resolved by wavelength, azimuth, and incident angle. In some other embodiments, regression is performed on a physics-based measurement model to estimate values of one or more parameters of interest characterizing the measured structure. A dispersing element in the concentrated beam path disperses the collected light across an active surface of the detector to resolve the collected light according to a wavelength and an angular dimension. In addition, a plurality of images are collected by the detector to resolve the collected light across another angular size.

Methods of identifying damaged microelectronic devices are described. A method includes applying a detection material to an active surface of a wafer. The detection material includes an additive configured to yield a visible reaction to heat or infrared or near-infrared light. The method may further include focusing a laser beam into an interior portion of the wafer through a second surface of the wafer opposite the active surface to form a modified layer along a separation region extending between adjacent microelectronic devices. The method may also include inspecting the detection material for visible reactions. The method may further include identifying reactions that indicate exposure to heat or infrared or near-infrared light over a pre-determined threshold. Protective tape, backgrind tapes, and methods of manufacturing a microelectronic device are also described.

Sensor module for concentrated photovoltaic (CPV) technologies using a point-focusing glass Fresnel lens, whose sensor housing (1) is designed as a straight truncated square pyramid, where in an implemented sensor module, has, on its side surfaces facing north, south, east and west, photoresistors (3) with reduced active surfaces (4) as indirect radiation detecting photosensors. At the top of the sensor housing (1), a focal pinhole (8) is formed centrally, and the direct sunlight detecting lens (6) is centrally connected to the top of the sensor housing (1) via a spacer element (7) made of opaque material, the optical axis of which coincides with the longitudinal axis of the sensor housing (1) and the center of the focal pinhole (8).  The optical focal point (10) of the lens (6) coincides with the focal pinhole (8) in the plane of the top of the sensor housing (1) and coincident with the optical axis of the lens (6) inside the sensor housing (1). The central photosensor (9) is arranged at a distance to the optical focus point (10) of the lens (6), therefore it is not damaged by concentrated direct radiation. When the focal pinhole is located, the direct radiation falling on the photosensor stops the sun tracking exactly, while the CPV cells deliver the maximum power. The electrical output of the photosensors (9) is connected to the control unit used in current photovoltaic technology. 

In an embodiment, a device includes: a die stack over and electrically connected to an interposer, the die stack including a topmost integrated circuit die including: a substrate having a front side and a back side opposite the front side, the front side of the substrate including an active surface; a dummy through substrate via (TSV) extending from the back side of the substrate at least partially into the substrate, the dummy TSV electrically isolated from the active surface; a thermal interface material over the topmost integrated circuit die; and a dummy connector in the thermal interface material, the thermal interface material surrounding the dummy connector, the dummy connector electrically isolated from the active surface of the topmost integrated circuit die.

The present application relates to a method for constructing a velocity structure model based on a hybrid surface wave, and belongs to the technical field of surface structure investigation in petroleum geophysical exploration. The method comprises: exciting active surface waves through a vibration excitation device; obtaining vibration information of active surface waves and passive surface waves through detectors arranged on both sides of a shot point; using a computer device to determine the dispersion points of the active surface waves and passive surface waves based on the vibration information, and fitting them to obtain a comprehensive dispersion curve, inverting the comprehensive dispersion curve to obtain a vertical velocity distribution structure; obtaining a shear wave time-depth curve based on the vertical velocity distribution structure, interpreting the shear wave time-depth curve, and obtaining a shear wave velocity structure model at the shot point. The above method has low requirements for equipment, a simple construction method, and high data processing efficiency. It can quickly establish a three-layer near-surface velocity structure model of a low-velocity layer, a reduced-velocity layer, and a high-velocity layer that are of interest in oil and gas seismic exploration.

An optical arrangement for a head-mounted display (200) is described, comprising an optical waveguide (8) with at least one Fresnel element (1) arranged in the optical waveguide, wherein the Fresnel element (1) has a Fresnel structure comprising a plurality of active surface segments (3, 3a, 3b, 3c) and a plurality of passive surface segments (5, 5a, 5b, 5c), wherein the passive surface segments (5, 5a, 5b, 5c) are arranged in a step-like fashion between the active surface segments (3, 3a, 3b, 3c) and connect them to each other. The Fresnel structure is coated such that the active surface segments (3, 3a, 3b, 3c) have a first reflective coating (4) and the passive surface segments (5, 5a, 5b, 5c) have a second reflective coating (6), wherein the first reflective coating (4) and the second reflective coating (6) each have a number of layers (7, 7a, 7b, 7c, 7d, 7e,7f) comprise of the same material and arranged in the same sequence, such that the first reflective coating (4) and the second reflective coating (6) differ from each other only in terms of the thickness of the individual layers (7, 7a, 7b, 7c, 7d, 7e, 7f), wherein the coated Fresnel structure is arranged in the optical waveguide (8) such that light from a display incident on the Fresnel structure, which after transmission through an active area segment (3, 3a, 3b, 3c) strikes a passive area segment (5, 5a, 5b, 5c), is reflected in such a way that it does not strike an active area segment (3, 3a, 3b, 3c) again.

The invention relates to the field of optical displacement sensors for measuring the three-dimensional shape of the surface of a measurement object. The optical sensor of the invention is configured to project measurement light into a plurality of discrete measurement regions via a first lens component with longitudinal chromatic dispersion, receive measurement light reflected from the intersection of the measurement object with one or more of the plurality of measurement regions and focus the received measurement light onto the surface of a diffractive or non-specular reflective component, and image measurement light diffracted or reflected from the diffractive or non-specular reflective component onto an active surface of a photodetector via a chromatically dispersive optical assembly and a mask. The position on the active surface of the photodetector at which measurement light is in focus depends on which measurement region of the plurality of measurement regions the measurement light was reflected from and the position within said measurement region from which the measurement light was reflected.

A coupler for joining a first pipe element and a second pipe element includes a first ring and a second ring attachable to the pipe elements. Each ring defines a groove and a plurality of receiving surfaces adjacent the groove. The segments are attachable end-to-end to surround the central space and the ring. Each section includes a key projecting toward the central space for engagement with each groove of the ring. Each section includes at least one active surface engageable with the receiving surfaces of the first and second rings. The engagement between the active surface and the receiving surface prevents rotation of the first pipe element and the second pipe element relative to each other. A method of assembling the coupler is also disclosed.