12 results about "Effective surface" patented technology

A lens is provided that includes a first optically effective surface and a second optically effective surface which intersect an optical axis, wherein: at least one of the first and the second optically effective surfaces has an inflection point between an intersection with the optical axis and an effective region end; a distribution of thickness between the first and the second optically effective surfaces in a direction parallel to the optical axis has an extreme value at a position away from the optical axis in a direction perpendicular to the optical axis; the at least one has, at a first portion, surface roughness larger than surface roughness of a second portion of which a thickness is thicker than the first portion; and a difference between the surface roughness of the first portion and the second portion is 1.0 nmRa or more in arithmetic average roughness.

A scanning head for an intraoral digital impression device, the scanning head having a housing and a lens. The housing has a closed first end, an open second end, and a first side provided with a window portion and an opposite second side which extend between the first end and the second end. The lens is fastened at the inner wall of the housing and is composed of a first volume in the shape of a truncated pyramid and a second volume in the shape of an adjoining cuboid, wherein the first volume uses a back surface of the lens as a top surface, uses as an outer peripheral surface beveled surfaces extending from the back surface, and has a bottom surface opposite the top surface, and the beveled surfaces are at an angle ranging from 0° to 90° relative to the direction of thickness of the lens; and the second volume uses a front surface of the lens as a bottom surface, uses a bottom surface of the truncated pyramid as a top surface, and has a thickness between the top surface and the bottom surface. By means of beveling and grinding a non-effective surface of the lens, the thickness of the edge of the lens is reduced, thereby reducing the entrance height of the scanning head. Further provided is an intraoral digital impression device having the scanning head.

The present invention relates to a manufacturing method of a polar anisotropic magnet 1N, 1S having four surfaces SF1, SF2, SF3, SF4, characterized by: a magnetic field forming step S20 of simultaneously applying a magnetic field of a first direction to an effective surface VSF (SF1) among the four surfaces and applying a magnetic field of a second direction to the remaining three surfaces (SF2, SF3, SF4), and forming a magnetic field; and a quadrilateral magnetization step S40 of magnetizing after applying a magnetic field of the first direction to the effective surface VSF (SF1) and applying a magnetic field of the second direction to the remaining three surfaces (SF2, SF3, SF4). The manufacturing method of the polar anisotropic magnet of the present invention has higher design freedom and higher economy than ever before.

An optical system disclosed in an embodiment of the invention comprises: a prism; and a lens unit disposed on the prism, wherein the prism includes a first surface on the object side, a third surface opposite to the first surface, second and fourth surfaces on both sides between the first and third surfaces and reflecting light, and fifth and sixth surfaces disposed on both sides in a first direction, and the first to fourth surfaces of the prism are effective optical surfaces, the fifth and sixth surfaces are non-effective surfaces, and a groove portion having a plurality of concave grooves is formed in each of the fifth and sixth surfaces, the width of the prism in the short-side direction is D1 and is less than a length L1 of the prism in the long-side direction, and a depth of each groove of the groove portion is G1, and the width of an image sensor in the long-side direction is X1, and mathematical expression 1 may be satisfied: 0.15 < G1 / (D1 - X1) < 0.25.

This invention relates to the field of marine engineering materials and surface engineering technology, specifically to a method for preparing Fe-based multi-element alloy powder with amorphous structure forming capability and laser cladding surface strengthening coating materials. The powder's chemical composition, by mass percentage, includes: Cr: 17%–21%, Mo: 15%–19%, W: 10%–15%, Y: 2%–4%, C: 2%–4%, B: 1%–2%, with the balance being Fe. Compared to traditional Fe-based cladding materials, this invention, by introducing elements such as W and Y and optimizing the proportions of the multi-element system, makes the coating more prone to exhibiting a predominantly amorphous structure under rapid laser solidification conditions, and demonstrates stable corrosion resistance and hardness levels in seawater corrosive environments. The powder system and cladding process of this invention can achieve effective surface protection for key components of marine engineering equipment, exhibiting good engineering applicability and application prospects.

A spatial optical phase modulator includes microcells each of which is constituted by an optical phase modulator. Each of the microcells includes a magnetization free layer having a first optically effective surface and a second optically effective surface opposite to the first optically effective surface and conductor that controls a direction of magnetization of the magnetization free layer to be parallel or substantially parallel to normal directions of the first optically effective surface and the second optically effective surface.

1. Valve 2. The invention relates to a valve, in particular a proportional pressure control valve, comprising a valve piston (12) which is guided in a longitudinally movable manner in a valve housing (10) for alternately releasing and connecting a utility port (A) to a pressure supply port (P) or a return port (T), and comprising an actuating device (16) for controlling the valve piston (12), which is at least partially designed as a hollow piston (46) and the interior (48) of which can be permanently fluidically connected to the utility port (A) and can be fluidically connected to the pressure supply port (P) or the return port (T) via at least one radial recess (50), and which has a further permanent fluid connection (58) in the form of an aperture (56) which connects the interior (48) of the hollow piston (46) to a control side (60) of the valve piston (12), which control side faces away from the utility port (A), characterised in that the valve piston (12) is stepped on the outer circumferential side in such a way that, with the formation of effective surfaces of different sizes, the outside diameter (dl) in the region of the respective radial recess is greater than the outer diameter (d2) in the region of the control side, and that a pressure measuring channel, which at least partially extends through the hollow piston (64) on the inner circumferential side thereof, interconnects two fluid chambers having the differently sized effective surfaces within the valve housing (10), the pressure measuring channel being part of the further fluid connection (58).

This application discloses a method and system for predicting the migration of rare earth elements. This application can acquire bio-disturbance information and physicochemical state information corresponding to a target region. Based on the bio-disturbance information, interface interaction analysis is performed on the surface property characteristics of natural colloids in the physicochemical state information to obtain and calculate the interaction potential energy based on the effective surface potential of the natural colloids under biological mediation, thus obtaining the dynamic migration information corresponding to the target colloidal carrier. According to a preset porous media evolution relationship, physical conservation analysis is performed on the hydrodynamic characteristics in the dynamic migration information and physicochemical state information to obtain and, based on the physical constraint characteristic information corresponding to the target region, the network parameters of the initial prediction network are updated through a preset joint loss function to perform spatiotemporal evolution prediction processing for rare earth elements in the target region. Therefore, this application improves the accuracy of spatiotemporal evolution prediction of rare earth elements and the reliability of engineering applications.

In a fastening device for a movable furniture part (12), in particular a drawer (12), comprising at least one base component (22) having a component longitudinal axis (40) and a wall fastening device (24) at a strut end (23a) of the base component (22) for fastening to a wall element of the furniture part (12), wherein the wall fastening device (24) has a holder (26) that can be attached to or is attached to the component end (23a) of the base component (22), on which an actuating element (27) is arranged that is movably mounted relative to the holder (26), to which a locking element (28) for releasably locking the base component (22) to the wall element and an actuating element (29) that is also movably mounted relative to the holder (26) are assigned such that by actuating the actuating element (29) an actuating movement can be initiated on the actuating element, which thereby,The actuating element (29) is movable between a starting position (30) and a functional position (31) in order to adjust the locking element between a locking position (32) and a release position (33). The actuating element (29) has a guide track (50) formed on the actuating element (29) which engages or can be brought into engagement with the actuator (27). This guide track interacts with an effective surface (49) formed on the actuator (27) in such a way that the guide track (50) and the effective surface (49) slide against each other, thereby converting the actuating movement of the actuating element (29) into the actuating movement.

The application discloses a kind of urban green space ecological maintenance method, equipment and medium based on digital twinning, it is related to wisdom green space maintenance technical field, including: obtaining city green space basic boundary information, according to crown layer continuous relationship and hardening paving adjacency relationship division green patch, construct the digital twin object of surface phase lock type green patch;Obtain dawn and dusk heat and humidity state and write into digital twin object, based on the deviation of leaf surface temperature relative air dew point temperature, hardening boundary heat release and shallow layer dry continuation condition calculation surface phase dislocation amount, form surface phase pressure-bearing determination data;According to surface phase pressure-bearing determination data determine target pressure-bearing patch, screen candidate lock patch and execute virtual disturbance deduction, determine effective surface phase lock patch;Effective surface phase lock patch is executed micro-induction maintenance, and lock influence relationship table is updated according to condensation recovery state.The application improves condensation obstruction identification accuracy, makes maintenance object shift to surface phase regulation position, reduces direct water supply frequency.

This invention is titled "Rapid and Effective Measurement of Surface Depth of Metal Components Using Physical Surface Trimming." A method for determining the effective surface depth of a metal component includes forming a trimmed core surface by blasting or shot peening an exposed surface of the metal component with a blasting medium. The exposed surface is a continuous exposed surface of the surface and the core. The method includes measuring the surface texture, compressive stress, or another suitable feature of the trimmed core surface using a surface metrology sensor, and using the measured features to identify the surface-core boundary, including identifying the location of predetermined differences or gradients within the exposed surface. The method also includes measuring the effective surface depth as the vertical distance between a reference surface of the surface and the surface-core boundary.

The present invention relates to a method for manufacturing an optical system (100) of a lithographic apparatus (1), the optical system (100) comprising an optical component (102) having an optically effective surface (106) and a substrate (104). In the method, a) for the substrates (104', 204a, 204b, 204c) of one or more optical components (102, 202a, 202b, 202c), the zero-crossing temperature (ZCT', ZCT a 、ZCT b 、ZCT c ) of the coefficient of thermal expansion (ρ') of the substrate (104', 204a, 204b, 204c) as a function of the location (r) of the substrate (104', 204a, 204b, 204c), and the normalized distribution functions (g, h a 、h b 、h c ) are each provided (step S2); b) for each of the provided distribution functions (g, h a 、h b 、h c ) and a plurality of mutually different predetermined average zero-crossing temperatures (M j ), the imaging error (F i ) of the optical system (102) is calculated by computer implementation respectively (step S3); c) among the plurality of average zero-crossing temperatures (M j ), at least one selected average zero-crossing temperature (M i ) for the substrate (104) of the optical component (102) to be manufactured is specified as the one for which the calculated imaging error (F aw ) is less than a predetermined threshold value (SW) (step S4).