17 results about "Active surface" patented technology

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.

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.

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).

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.

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.

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.

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.

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.

An optical system, such as in a microlithographic projection exposure apparatus, comprises at least one mirror having an optical active surface and a mirror substrate made of a mirror substrate material. At least one cooling channel is provided in the mirror substrate through which a cooling fluid with a variably settable cooling-fluid temperature can flow. In a method of operating an optical system, the cooling-fluid temperature is set on the basis of an existing deviation between an actual value for the average zero-crossing temperature of the coefficient of thermal expansion of the mirror substrate material and a predefined setpoint for this average zero-crossing temperature. The cooling-fluid temperature is controlled during operation of the optical system. The control is effected on the basis of a feedforward model.

Examples herein include piezoelectric layers of an ultrasound transducer, ultrasound transducers, methods of manufacturing the transducers, and methods of manufacturing the piezoelectric layers of an ultrasound transducer. In one example, a piezoelectric layer of an ultrasound transducer include a non-metallic frame and a piezoelectric material. The non-metallic frame surrounds the piezoelectric material on at least two sides and is coupled to a lens support structure with a structure such that an acoustic lens and the piezoelectric material are oriented substantially parallel to each other. The piezoelectric material is sized to span an area greater than or equal to an active surface of the acoustic lens.

The invention relates to a method (500) for producing a camera (100), wherein the camera (100) comprises: an objective (101) having an objective housing (102) and at least one optical lens (103); a camera housing (111) having at least two pins (106-1, 106-2) protruding in a direction away from the objective (101); and a circuit board (107) with an imager module (108) fastened thereon, wherein the circuit board (107) is connected to the camera housing (111) by means of the pins (106-1, 106-2); wherein the method comprises the steps of: providing (501) the camera housing (111); providing (502) the circuit board (107), wherein an imager module (108) comprising an image sensor is fastened on the circuit board (107), and wherein the circuit board (107) comprises at least two receiving openings (109-1, 109-2) corresponding to the pins (106-1, 106-2) of the camera housing (111); introducing (503) the circuit board (107) into the camera housing (111), wherein the circuit board (107) is held by means of a gripper system, and wherein the pins (106-1, 106-2) of the camera housing (111) are guided through the receiving openings (109-1, 109-2) of the circuit board (107); measuring (504) an orientation of an active surface (201) of the image sensor fastened on the circuit board (107) relative to the camera housing (111) by means of an image recognition method; positioning (506) the circuit board (107) relative to the camera housing (111) by means of the gripper system, taking into account the orientation of the measured active surface (201); and fastening (507) the circuit board (107) to the camera housing (111).

The invention relates to the technical field of state monitoring and fault diagnosis of industrial automatic control systems, and provides a radio telescope active surface system state monitoring and fault diagnosis system for solving the technical problem that an existing telescope active surface system lacks multi-level equipment state monitoring and comprehensive fault diagnosis functions. Comprising a bottom-layer equipment execution layer, a middle control layer and a top-layer control layer which are in communication connection with one another, and the bottom-layer equipment execution layer obtains a primary diagnosis conclusion; the intermediate control layer obtains an intermediate diagnosis conclusion; and the top control layer obtains a fusion diagnosis conclusion. According to the method, fault and failure points of an actuator, controllers of all levels, power supply, communication and the like are accurately recognized and positioned through hierarchical diagnosis and superior fusion, high-reliability comprehensive decision and fault processing / recovery are achieved on a top control layer, and the diagnosis accuracy and the response speed are improved.

The invention relates to an optical arrangement for a head-mounted display (200), which optical arrangement comprises an optical waveguide (8) having at least one Fresnel element (1) arranged in the optical waveguide, wherein the Fresnel element (1) has a Fresnel structure, which comprises 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 manner between the active surface segments (3, 3a, 3b, 3c) and connect them to one another. 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 comprise a number of layers (7, 7a, 7b, 7c, 7d, 7e, 7f) made of the same material and arranged in the same order such that the first reflective coating (4) and the second reflective coating (6) differ from one another only with respect to 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 display-emitted light which impinges on the Fresnel structure and is incident on a passive surface segment (5, 5a, 5b, 5c) after transmission through an active surface segment (3, 3a, 3b, 3c) is reflected in such a way that it is not incident on an active surface segment (3, 3a, 3b, 3c) again.

This invention relates to the field of optical displacement sensors for measuring the displacement of a measurement object relative to a sensor. The invention can be used in the context of displacement sensors for measuring the displacement of a measurement object relative to an optical sensor, for measuring the 2D contour of a measurement object, or for measuring the 3D shape of a measurement object. The optical sensor according to the invention is configured to: project multicolor measurement light into a measurement area; use an objective lens assembly to focus measurement light reflected from the intersection of the surface of the measurement object and the measurement area at a first focal point, such that the wavelength of the focused measurement light at the first focal point depends on the distance of the intersection of the surface of the measurement object and the measurement area from the objective lens assembly, wherein the first focal point is located within a first aperture; use a second lens assembly to focus measurement light received from the first aperture at different distances from the second lens assembly, depending on the wavelength of the received measurement light, onto the surface of a diffractive or non-reflective component; image the measurement light diffracted or reflected from the diffractive or non-reflective component onto a movable surface of a photodetector; and sense the intensity of light received at different locations on the movable surface of the photodetector.

Lighting device for a motor vehicle, in particular a headlight for a motor vehicle, comprising - at least one light source (1) from which light (4) is emitted during the operation of the light source, - an optical component (2) into which light (4) emitted by the at least one light source (1) enters, - Light-controlling means (9) with an active surface for selectively controlling individual pixels or groups of pixels of the light (4), wherein the light-controlling means (9) reflect or deflect incident light (4) in such a way that it at least partially exits the lighting device, - Lighting optics formed on or in the optical component (2), and the light (4) from the lighting optics is reflected or deflected onto the active surface of the light-controlling means (9) during operation of the lighting device, wherein the light-controlling means (9) are arranged outside the optical component (2) such that light (4) emanating from the lighting optics exits the optical component (2), strikes the active surface of the light-controlling means (9), is reflected or deflected by the latter, and then re-enters the optical component (2), characterized in that the light-controlling means (9) are in direct or indirect contact with an outer surface of the optical component (2), wherein a connecting layer (8) is arranged between the outer surface of the optical component (2) and the light-controlling means (9).and wherein the connecting layer (8) is designed to reduce light loss.