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165 results about "Super structure" patented technology

Optical zoom method based on super-structured lens using wavelength modulation

The invention discloses a method for realizing optical zooming, that is, an optical zoom method based on a super-structured lens using wavelength modulation, based on (1) a light source probe, (2) linear polarizing plates, and (3) quarter wave plates, (4) a super-structured (chromatic aberration) lens; the super-structured (chromatic aberration) lens (4) is placed in the middle of two combinationsof the linear polarizing plates and the quarter wave plates, and a photoreceptor (5) is disposed on the imaging surface for receiving images; and incident light of different wavelengths is used to pass through a super-structured (chromatic aberration) lens for imaging at different image distance positions for zooming. There are two kinds of application scenarios: one is that the image distance isfixed, the illumination wavelength and the object distance are adjusted to obtain the change of the size of the imaging image; the second is that the object distance is fixed, and the illumination wavelength and the image distance are adjusted to obtain the change of the imaging size. The method adopts the design principle of the super-structured surface, the chromatic aberration is controlled bythe phase matching, and the spherical aberration and the coma aberration correction can be performed within a certain imaging interval.
Owner:NANJING UNIV

Super-surface color vector complex amplitude holographic element

ActiveCN109709784AHigh diffraction efficiencySimultaneous and independent control of the amplitudeInstrumentsIn planeSuper structure
The invention discloses a super-surface color vector complex amplitude holographic element, which comprises a bimetallic nanorod unit structure with adjustable in-plane rotation angles and in-plane displacement, wherein an aluminum-silicon dioxide-aluminum super-structure grating structure generates a polarization-selective type diffraction efficiency enhancement effect in a visible light range; asum of in-plane displacement of two metal nanorods in the unit structure and diffraction phase information are in a linear modulation relationship, a difference between the rotation angles of the twometal nanorods and a diffraction light amplitude are in a sinusoidal modulation relationship, and a sum of the rotation angles of the two metal nanorods and a diffraction light polarization directionare in a linear modulation relationship; and a color holographic method is implemented on diffraction level by utilizing the phase displacement based on inherent dispersion of the super-structure grating. The super-surface color vector complex amplitude holographic element disclosed by the invention has the advantages of low requirements for preparation control precision, simple structure, high degree of control freedom and the like, and has powerful functions of simultaneously controlling four parameters of light wave phase, polarization, amplitude and frequency.
Owner:JINAN UNIVERSITY

Siloxane bridged silane terminated siloxane bridged ladder like polysiloxane and preparation method thereof

ActiveCN107880267AEffectively control the degree of polymerizationThe capping reaction is completeSilanesSuper structure
The invention relates to siloxane bridged silane terminated siloxane bridged ladder-like polysiloxane and a preparation method thereof. The invention provides siloxane bridged silane (namely bifunctional I-shaped silane) terminated siloxane bridged ladder-like polysiloxane and a preparation method thereof. Tetra-functional I-shaped siloxane bridged siloxane monomers and a bifunctional I-shaped siloxane bridged silane end-capping reagent are co-hydrolyzed, and a ladder like super-structure formed by the supermolecule weak bond synergistic effect is used to modulate the polymerization and end capping reactions of hydrolysis products so as to obtain the siloxane bridged silane terminated siloxane bridged ladder like polysiloxane represented by the formula. Compared with common mono-functionalsiloxane bridged silane terminated siloxane bridged ladder like polysiloxane, the polymerization degree and end-capping degree of the bifunctional I-shaped siloxane bridged silane terminated siloxanebridged ladder-like polysiloxane can be effectively controlled. The polymer has the advantages of excellent heatproof property, good mechanical properties, and good compatibility with organic polymer. The end-capping mode has the advantages of simple and easily-available raw materials, low cost, and suitability for industrialization.
Owner:ETERNAL CHINA INVESTMENT +1

Multilayer-superstructure-surface-based method for constructing broadband achromatic super-structural optical lens group

The invention discloses a multilayer-superstructure-surface-based method for constructing a broadband achromatic super-structural optical lens group. The method comprises: constructing a super unit and carrying out simulation to obtain a transmission coefficient and phase change curve of a uniform array corresponding to the super unit; constructing a focused super-structure lens and a divergent super-structure lens, generating a focused super-structure lens sample and a divergent super-structure lens sample, and calculating Abel constants of the focused super-structure lens sample and the divergent super-structure lens sample based on dispersion characteristics; solving an optimization problem to obtain the combination with the minimum dispersion of the focused super-structure lens and thedivergent super-structure lens; and then with full-wave simulation, acquiring dispersion characteristics of the broadband achromatic super-structural optical lens group, comparing the lens group witha single-layer dispersion super-structural optical lens, and evaluating the chromatic aberration improvement condition of the broadband achromatic super-structural optical lens group. Therefore, thecomplexity of processing of the broadband achromatic device is reduced and the integration and reliability of the broadband achromatic device are enhanced.
Owner:NANJING UNIV OF SCI & TECH

Earthquake-proof building and shock absorption and insulation structure

ActiveCN111155638AImprove vertical vibration isolation capabilityAvoid damageProtective foundationProtective buildings/sheltersWater storageInsulation layer
The invention relates to the technical field of earthquake-proof buildings, in particular to an earthquake-proof building and shock absorption and insulation structure. The earthquake-proof building and shock absorption and insulation structure comprises a base pit, a superstructure, a vertical shock insulation layer, a horizontal shock insulation layer and a flexible filling part, wherein the base pit is formed in the ground, the horizontal shock insulation layer comprises a base plate and shock insulation supports fixedly arranged between the base pit and the base plate, the vertical shock insulation layer comprises a structural plate and inserting pillars, the superstructure is arranged on one side, away from the base plate, of the structural plate in the vertical direction, inserting holes are formed in the base plate, the inserting pillars penetrate through the inserting holes, the flexible filling part comprises a water storage groove and water, vertical surrounding boards are fixedly arranged on the bottom surface of the base pit, the water storage groove is a gap formed between outer side walls of the surrounding boards and the side walls of the base pit and is filled withwater, a plurality of bearing piles are fixedly connected to the lower side of the structural plates, the bearing piles are inserted into the water storage groove, and a drainage pipe is communicatedin the side walls of the water storage groove. The function of improving the vertical shock insulation capability of the shock insulation structure is realized.
Owner:上海徐汇规划建筑设计有限公司
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