| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | LIGHT LIMITING WINDOW | EP09769629 | 2009-06-18 | EP2307796A4 | 2012-08-08 | DONVAL ARIELA; NEMET BOAZ; NEVO DORON; ORON MOSHE |
| A passive optical power limiting window comprising a transparent optical input element, a transparent optical output element, and a power-limiting element disposed between these input and output elements for transmitting optical light from these input elements to these output elements, these optical power-limiting elements comprising an optical-limiting solid mixture containing particles of at least one material that produces reversible thermal changes in response to light above a predetermined optical power level, thereby changing the optical transmission properties of these power-limiting elements. | ||||||
| 122 | PHOTONENDETEKTOR MIT PARALYSIERBAREM PHOTONEN-EMPFINDLICHEM ELEMENT, INSBESONDERE SPAD, SOWIE ENTFERNUNGSMESSGERÄT MIT SOLCHEM PHOTONENDETEKTOR | EP10732383.4 | 2010-07-15 | EP2476013A1 | 2012-07-18 | EISELE, Andreas; WOLST, Oliver; SCHMIDTKE, Bernd |
| The invention relates to a photon detector (1) comprising, in addition to an immobilisable photon-sensitive element (5), a photon transmission element (7). Said photon detector is configured such that it can vary photon intensities impacting upon the photon-sensitive element (5) and transmitted by the photon transmission element (7), for example, by modifying an absorption property or a defocussing property of the photon transmission element (7). Also, the immobile photon-sensitive element, which can be, for example a SPAD (Single Photon Avalanche Diode), always operates close to the optimal operating range and below an immobilisation range. The invention also relates to a distancing device comprising said type of photo detector. | ||||||
| 123 | OPTICAL POWER LIMITING POLYMERIC MATRIX | EP10751139.6 | 2010-03-12 | EP2406794A1 | 2012-01-18 | SARKAR, Abhijit; MIRZA, Shamim; RAHMAN, Salma; RAYFIELD, George |
| This invention concerns a solid polymer matrix for use as non-focal optical power limiting polymeric materials. This matrix contains: (1) a hyperbranched polymer family, especially HB-PCS OR HB-PU, HB-PUSOX or PC; (2) one or more of RSA dye, MPA dye, azo dye or DMNPAA; 3) CNT and 4) a self-focusing component. This solid polymer matrix provides efficient protection from laser beam damage along with its self-focusing mechanism. | ||||||
| 124 | Optical power limiter | EP04008434.5 | 2004-04-07 | EP1467239B1 | 2011-09-21 | Farber, Allan; Nevo, Doron; Oron, Ram; Donval, Ariela; Oron, Moshe |
| 125 | RESETTABLE OPTICAL FUSE | EP08702345.3 | 2008-01-31 | EP2118694A2 | 2009-11-18 | ORON, Ram; DONVAL, Ariela; NEMET, Boaz; NEVO, Doron; ORON, Moshe |
| A resettable optical energy switching device comprises a waveguide forming an optical path between an input end and an output end, and an optical energy diverting material located in said optical path for diverting optical energy propagation away from said output end when said optical energy exceeds a predetermined threshold. The optical energy diverting material does not divert optical energy propagation away from the output end when the optical energy propagation drops below the predetermined threshold, and thus propagation of optical energy to the output end is automatically resumed when the optical energy drops below the predetermined threshold. In one implementation, the optical energy diverting material comprises a light-absorbing material having an index of refraction that decreases as light is absorbed by the material. | ||||||
| 126 | CONSTANT OUTPUT LIGHT ATTENUATOR AND CONSTANT OUTPUT LIGHT ATTENUATING METHOD | EP01965686 | 2001-09-18 | EP1327905A4 | 2006-03-22 | OTO MASANORI; MORISHITA YUUICHI; NORO HARUHITO |
| A constant output light attenuator, comprising a non-linear optical material (1) and an aperture (2) disposed on a same optical axis and also disposed on the same optical axis as input and output optical fibers (3) and (4), wherein a light beam output from the input optical fiber (3) is input into the non-linear optical material (1) and passes the non-linear optical material (1), the light beam passed through the non-linear optical material (1) is diverged radially about the optical axis, the aperture (2) allows to pass only the light beams within a specified radius of the radially diverged light beams, and the light beam passed through the aperture (2) is input into the output optical fiber (4), whereby, by optimizing the parameters such as the secondary non-linear refraction factor of the non-linear optical material (1), the thickness of the non-linear optical material, a distance between the non-linear optical material and aperture, and the opening diameter of the aperture, an output light beam with a specified intensity can be provided from the output optical fiber (4) irrespective of the intensity of the input light beam. | ||||||
| 127 | Optical power limiter | EP04008434.5 | 2004-04-07 | EP1467239A2 | 2004-10-13 | Farber, Allan; Nevo, Doron; Oron, Ram; Donval, Ariela; Oron, Moshe |
An optical power limiter comprises an input optical transmission element (2'), an output optical transmission element (2"), and a power-limiting element disposed between the input and output elements for transmitting optical signals from the input element to the output element. The power-limiting element comprises an optical-limiting solid mixture (10) containing particles of at least one material that produces reversible thermal changes in response to light above a predetermined optical power level, thereby changing the optical transmission properties of the power-limiting element. |
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| 128 | OPTICAL DEVICE HAVING NONMONOTONIC TRANSFER FUNCTION AND APPLICATIONS USING SAME | EP02706175.3 | 2002-02-08 | EP1362259A2 | 2003-11-19 | JOHNSON, Erik, V.; SARGENT, Edward, H.; BRZOZOWSKI, Lukasz |
| An entirely passive all-optical device, referred to as an optical hard limiter, consists of alternating layers of materials having oppositely signed Kerr coefficients and substantially different linear indices of refraction, wherein the higher linear index material has the negative Kerr coefficient and the lower linear index material has the positive Kerr coefficient. The optical device has two distinct transmittance curves. Various optical devices and systems can be built from such optical hard limiters. | ||||||
| 129 | CONSTANT OUTPUT LIGHT ATTENUATOR AND CONSTANT OUTPUT LIGHT ATTENUATING METHOD | EP01965686.7 | 2001-09-18 | EP1327905A1 | 2003-07-16 | Oto, Masanori c/o Showa Elec. Wire & Cable Co.,Ltd; Morishita, Yuuichi Showa Elec. Wire & Cab. Co.Ltd; Noro, Haruhito c/o Showa Elec. Wire & Cable Co.Ltd |
In a light attenuator or its attenuating method, a nonlinear optical material and an aperture section are placed respectively on a same optical axis, between a receiving optical fiber and a sending optical fiber. The nonlinear optical material receives and refracts an input light outputted from the receiving optical fiber. The aperture section has an aperture, receives the light having passed through the nonlinear optical material, and outputs constant output light to the sending optical fiber by only allowing a part of the light to be outputted from the aperture. Then, for obtaining the wishful output light with constant strength no depending upon the input light, these parameters of the quadratic nonlinear refractive index n2 and the thickness t of the nonlinear optical material; the distance L between nonlinear optical material and aperture section; and the diameter Ø of the aperture, are set most appropriately. |
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| 130 | RESETTABLE OPTICAL FUSE | PCT/IB2008000216 | 2008-01-31 | WO2008093220A3 | 2009-12-30 | ORON RAM; DONVAL ARIELA; NEMET BOAZ; NEVO DORON; ORON MOSHE |
| A resettable optical energy switching device comprises a waveguide forming an optical path between an input end and an output end, and an optical energy diverting material located in said optical path for diverting optical energy propagation away from said output end when said optical energy exceeds a predetermined threshold. The optical energy diverting material does not divert optical energy propagation away from the output end when the optical energy propagation drops below the predetermined threshold, and thus propagation of optical energy to the output end is automatically resumed when the optical energy drops below the predetermined threshold. In one implementation, the optical energy diverting material comprises a light-absorbing material having an index of refraction that decreases as light is absorbed by the material. | ||||||
| 131 | OPTICAL DEVICE HAVING NONMONOTONIC TRANSFER FUNCTION AND APPLICATIONS USING SAME | PCT/US0203532 | 2002-02-08 | WO02065205A9 | 2004-01-08 | JOHNSON ERIK V; SARGENT EDWARD H; BRZOZOWSKI LUKASZ |
| An entirely passive all-optical device, referred to as an optical hard limiter, consists of alternating layers of materials having oppositely signed Kerr coefficients and substantially different linear indices of refraction, wherein the higher linear index material has the negative Kerr coefficient and the lower linear index material has the positive Kerr coefficient. The optical device has two distinct transmittance curves. Various optical devices and systems can be built from such optical hard limiters. | ||||||
| 132 | BROADBAND OPTICAL LIMITER BASED ON NANO-GRAPHENE AND METHOD OF FABRICATING SAME | PCT/US2010032205 | 2010-04-23 | WO2010129196A3 | 2014-03-20 | ZHAO WEI; ZHAO BOSHAN |
| The present invention in one aspect relates to a low-cost, nano-graphene based broadband optical limiter with limiting properties superior to current standards, carbon fullerenes (C60) solutions and carbon black suspensions. The broadband optical limiter includes a plurality of graphene nano-sheets, and a base material in which the plurality of graphene nano-sheets is distributed. The base material can be liquid or gel matrix. | ||||||
| 133 | ADAPTIVE POLARIZATION FILTER (APF) | PCT/RU2010000493 | 2010-09-03 | WO2011028152A2 | 2011-03-10 | KRAPIVIN VLADIMIR LEONTIEVICH |
| The invention relates to anti-dazzle devices for both polarized and non-polarized radiation. The technical result consists in the production of an effective anti-dazzle filter that exhibits minimal losses and adapts to dazzling radiation sources. The filter comprises optically transparent systems using an optically transparent dielectric substance and a birefringent substance on liquid crystal molecules, said systems being designed and arranged in the same way and diminishing the intensity of the radiation transmitted therethrough. The position of the electrodes on the surfaces of each system is different. The surfaces of the dielectric substance contain an orientator which aligns the major axes of the molecules of the birefringent substance with the corresponding polarization component of the transmitted radiation so that the conditions of dispersion and/or reflection are met for one or both polarization components of the radiation. The refractive indices of the birefringent substance are close to the refractive indices of the dielectric substance when the major axes of the liquid crystal molecules are positioned along the direction of the incident radiation, and differ for one of the orthogonal polarization components when the position of the major axes of the liquid crystal molecules changes in a direction set by the orientator. The molecules of the birefringent substance change orientation when the intensity of the radiation exceeds a given threshold. | ||||||
| 134 | OPTICAL DEVICE HAVING NONMONOTONIC TRANSFER FUNCTION AND APPLICATIONS USING SAME | PCT/US0203532 | 2002-02-08 | WO02065205A2 | 2002-08-22 | JOHNSON ERIK V; SARGENT EDWARD H; BRZOZOWSKI LUKASZ |
| An entirely passive all-optical device, referred to as an optical hard limiter, consists of alternating layers of materials having oppositely signed Kerr coefficients and substantially different linear indices of refraction, wherein the higher linear index material has the negative Kerr coefficient and the lower linear index material has the positive Kerr coefficient. The optical device has two distinct transmittance curves. Various optical devices and systems can be built from such optical hard limiters. | ||||||
| 135 | GRATING LIKE OPTICAL LIMITER | PCT/IB2008000219 | 2008-01-31 | WO2008093223A3 | 2009-12-23 | ORON RAM; DONVAL ARIELA; NEMET BOAZ; NEVO DORON; ORON MOSHE |
| A reversible optical energy limiting device comprises a waveguide forming an optical path between an input end and an output end, and an optical energy responsive material located in the optical path for reflecting at least a portion of optical energy received from the input end back toward the input end when the optical energy exceeds a predetermined threshold. The optical energy responsive material does not reflect optical energy when it drops below the predetermined threshold, and thus propagation of optical energy from the input end to the output end is automatically resumed when the optical energy drops below the predetermined threshold. The optical energy responsive material may extend across the optical path an acute angle relative to the longitudinal axis of the optical path so that back-reflected light does not re-enter the optical system. | ||||||
| 136 | MULTIFUNCTIONAL PARTICULATE MATERIAL, FLUID, AND COMPOSITION | PCT/US0316230 | 2003-06-25 | WO2004049358A2 | 2004-06-10 | SUDARSHAN TIRUMALAI S; KOTHA SANJAY; RADHAKRISHNAN RAMACHANDRAN |
| A multifunctional particulate material, fluid, or composition includes a predetermined amount of core particles with a plurality of coatings. The core particles have an average particle size of about 1 nm to 500 µm. The particulate material, fluid, or composition is capable of exhibiting one or more properties, such as magnetic, thermal, optical, electrical, biological, chemical, lubrication, and rheological. | ||||||
| 137 | OPTICAL ENERGY SWITCHING DEVICE AND METHOD | PCT/IB0300928 | 2003-03-13 | WO03076971A2 | 2003-09-18 | DONVAL ARIELA; NEVO DORON; ORON MOSHE; ORON RAM |
| An optical power or energy-switching device, comprisingan optical waveguide having an input section and an output section, the two sections forming a pair of opposed surfaces extending transversely through the axes of said waveguide sections, and a thin, substantially transparent layer of electrically conductive material disposed between said opposed surfaces, said layer of conductive material forming a plasma when exposed to optical signals propagating within said optical waveguide with an optical power level above a predetermined threshold, said plasma damaging said opposed surfaces sufficiently to render said surfaces substantially opaque to light propagating within said optical waveguide so as to prevent the transmission of such light. | ||||||
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