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76results about How to "Improve light collection efficiency" patented technology

Sample imaging device

An imaging device for biochemical or medical samples, the pulse mode light source of which incorporates flash lamps and a rotating mirror in an inclined position, the said mirror reflecting the light emitted by each flash lamp in turn along the same optical path to the sample. The flash lamps are switched on alternately in phases and synchronised with the rotating mirror and the emission light chopper, which comprises two rotating discs. The turning mirror directs the light at the sample from above and / or below, in which case a double-acting transparent scattering plate can be used.
Owner:WALLAC

Light source module and projector

The invention relates to a light source comprising a light emitting element, a reflecting element, a wavelength converting element and an optical element, wherein the light emitting element emits an excitation beam; the reflecting element comprises a reflection surface with a first focal point and a second focal point; the wavelength converting element comprises a plurality of excitation areas and is arranged close to the first focal point and on a transmission path of the excitation beam; depending on the rotation of the wavelength converting element, the excitation beam irradiates on different multiple excitation areas at different time so that the excitation beam is converted into a plurality of wavelength beams at the different time; the wavelength beams respectively correspond to the excitation areas, are reflected by the reflection surface and are converged into the second focal point; and the optical element is arranged close to the second focal point and on the transmission path of the wavelength beam, thus the wavelength beam is transmitted to the optical element through the second focal point.
Owner:CORETRONIC

Preparation and application of reflecting type fluorescent glass light conversion assembly

A reflecting type fluorescent glass light conversion assembly comprises a glass substrate, a reflecting agent glass coating and a fluorescent glass coating, wherein the reflecting agent glass coating includes glass B powder and reflecting agent C according to the mass ratio of 150:1 to 100:150, a glass coating, containing a fluorescent body D, of the fluorescent glass coating is calcined on the glass substrate, and the thicknesses of the reflecting agent glass coating and the fluorescent glass coating each range from 0.3 mm to 3 mm.The reflecting agent C is an insulating body, has large optical energy band gaps and has the corresponding optical absorption wavelength of 420 nanometers or below.The reflecting agent C has a white appearance color.The assembly is prepared through the steps of mixing wide-band-gap reflecting agent powder and low-melting-point glass powder on the glass substrate to prepare a reflecting coating, then preparing the fluorescent glass coating on the reflecting coating, and fusing the reflecting coating, the fluorescent glass coating and the glass substrate into a whole through a thermal treatment process.
Owner:NANJING UNIV

Pixellated detector device

The present invention relates to a pixellated detector with an enhanced structure to enable easy pixel identification even with high light output at crystal edges. A half-pixel shift between scintillator crystals (50) and detector pixels (12) enables the identification of a crystal (50) from four detector pixels (12) instead of nine pixels in case of optical crosstalk. Glass plates without any mechanical structuring may be used as a common substrate (60) for detectors and scintillators.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV

Transmission imaging device and method based on tera-hertz quantum device

The invention provides a transmission imaging device and method based on a tera-hertz quantum device. The transmission imaging device comprises a light source part, an optical path part and a detection part, wherein the light source part comprises a driving power supply, a first cold head, a first heat sink arranged in the first cold head, a tera-hertz quantum cascaded laser arranged on the first heat sink and a first polyethylene window arranged on the first cold head; the optical path part comprises a first off-axis parabolic mirror, a second off-axis parabolic mirror, a two-dimensional electric translation platform, a third off-axis parabolic mirror and a fourth off-axis parabolic mirror; and the detection part comprises a second cold head, a second polyethylene window arranged on the second cold head, a second heat sink arranged in the second cold head, a tera-hertz quantum trap detector arranged on the second head sink, a signal processing circuit, an oscilloscope and a computer. The device and the method have the advantages that: an adopted tera-hertz radiation source can work in the pulse mode; and due to the adoption of the tera-hertz quantum trap detector serving as a signal detector, the imaging speed of a system can be increased effectively, and the imaging quality can be enhanced.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Packaging method for cerium-doped halogenated lanthanum scintillation crystal

The invention discloses a packaging method for a cerium-doped halogenated lanthanum scintillation crystal. The packaging method is characterized in that the scintillation crystal sequentially undergoes grinding (to remove a corrosion layer), polishing and surface roughness in a hypoxia dry environment; a reflecting surface of the crystal and a reflection material form a diffuse reflection surface, a light-emitting surface and a high-refraction-rate optical coupling glue form a light-emitting port, and the optimum state of the crystal light-emitting surface is of a sawtooth-shaped optical microstructure; a scintillation crystal packaging structure which is resistant to oscillation, temperature shock and damp is designed; and three layers of composite protecting structures comprising a rigid sleeve pipe, a foaming heat-insulating buffer layer and a casing are arranged. An optical coupling agent at the front end of the crystal and an elastic gasket at the rear end of the crystal are made of soft elastic materials. A gap is reserved between a rear cover and a rigid gasket, the heat-insulating effect is improved, and a double-way compound sealant is adopted to adhere the position of a joint of the casing.
Owner:北京玻璃研究院有限公司 +1

Amorphous silicon flat-panel detector and preparation method thereof

The invention provides an amorphous silicon flat-panel detector and a preparation method thereof. The method comprises the following steps: preparing an image sensor array on a substrate, and forming a planar focusing microlens material layer on the image sensor array; forming a photoresist layer on the focusing microlens material layer; carrying out exposure and development on the photoresist layer and forming a photoresist array, photoresist units in the photoresist array being in one-to-one correspondence with pixel units in the image sensor array; enabling each photoresist unit to be in a spherical crown shape through hot melting; enabling the spherical crown shape to be transferred to the focusing microlens material layer through etching, and forming a focusing microlens array; and forming a scintillation layer on the focusing microlens array. Through light condensation effect, more light beams are allowed to enter a light sensitive area of an image sensor, so that light collecting efficiency of the image sensor array is improved, and sensitivity of the amorphous silicon flat-panel detector is improved; and meanwhile, through convergence effect, optical crosstalk between adjacent pixels is reduced, and spatial resolution of the amorphous silicon flat-panel detector is improved.
Owner:SHANGHAI IRAY TECH

LED lamp with improved luminous efficiency and method for improving luminous efficiency

A LED lamp and a light effect improving method thereof. A bulb shell (2) is covered on LED beads (3), and is mounted in a reflection cup (1). The bulb shell (2) is used for processing a primary optical process for the light emitted by the LED beads (3). The reflection cup (1) is used for processing a secondary optical process for the light which is subjected to the primary optical process performed by the bulb shell (2). By the functions such as refraction, scattering, diffusion and the like of the bulb shell (2), the primary emergent light emitted from the LED beads (3) is subject to the primary optical process such as mixing, scattering and so on, so as to realize the treatment effect that the light is emitted from the three-dimensional surface of the bulb shell (2). The reflection cup (1) performs the secondary optical process, so as to reflect the scattering light within a certain angle range.
Owner:CIVILIGHT SHENZHEN SEMICON LIGHTING

Tunable optical filter and spectrometer

A tunable optical filter is disclosed having an input port, a beam translator for translating input and output optical beams, an element having optical power for collimating the translated beam, a reflective wavelength dispersive element, and an output port. The beam translator can include a tiltable MEMS mirror coupled to an angle-to-offset optical element. An output port can be extended into a plurality of egress ports, each receiving a fraction of the scanned optical spectrum. A multi-path scanning optical spectrometer can be used as an optical channel monitor for monitoring performance of a wavelength selective switch, or for other tasks.
Owner:LUMENTUM OPERATIONS LLC

Microfluidic technology-based chemiluminescent immune tray and working method thereof

The invention provides a microfluidic technology-based chemiluminescent tray and a working method thereof. The microfluidic technology-based chemiluminescent immune tray comprises a sample adding port, a reagent port, and an assay cell; compared with the assay cell, a transition cell is farther away from the rotational center of the tray; one end of a first passage communicates with the end, which is far away from the rotational center, of the assay cell, the other end communicates with the transition cell, and the middle is a bent part; the minimum rotational radius of the first passage is less than the maximum rotational radius of the assay cell; compared with the transition cell, a waste liquid cell is farther away from the rotational center of the tray; and the transition cell communicates with the waste liquid cell. The invention has the advantages of little reagent consumption, short assay time, good cleaning effect and the like.
Owner:ZHEJIANG PUSHKANG BIOTECHNOLOGY CO LTD

Inlaying source device used for scintillation crystal detector gain automatic control

The invention relates to an inlaying source device used for scintillation crystal detector gain automatic control. The inlaying source device comprises a plastic scintillator barrel, a plastic scintillator cylinder and an epoxy resin layer. A 241Am radioactive source is adhered on the bottom part of the plastic scintillator barrel. The plastic scintillator cylinder is plugged in the plastic scintillator barrel and abutted against the 241Am radioactive source so that a plastic scintillator is formed. A reflective coating layer is arranged at the external side of the plastic scintillator. The epoxy resin layer is connected on the top part of the plastic scintillator cylinder in a sealing way and used for sealing the 241Am radioactive source in the plastic scintillator. According to the inlaying source device used for scintillation crystal detector gain automatic control, the manufacturing process of the 241Am radioactive source is simple and easy to realize; and light collection efficiency is high so that signal-to-noise ratio is effectively enhanced and detection efficiency of alpha particles is greatly enhanced.
Owner:NAT INST OF METROLOGY CHINA +1

Integrated electrochemical luminescence detecting pond

The invention provides an integrated electrochemical luminescence detecting pond. The integrated electrochemical luminescence detecting pond comprises a lower pond body and an upper pond body, wherein the upper pond body is arranged on the lower pond body; the upper pond body and the lower pond body are fixed detachably; a silica gel pad is arranged on the upper end surface of the lower pond body; an organic glass module is arranged on the silica gel pad; a fluid groove is formed in the silica gel pad; an auxiliary electrode and a working electrode are respectively arranged on the top and the bottom of the silica gel pad; an operating groove which communicates with the outside is formed in one side of the inside of the lower pond body; a second operating groove is formed in the other side of the lower pond body; a reference electrode which communicates with an outlet flow path is arranged in the lower pond body; a control device is arranged in a cavity; and a magnet is placed in the control device. By the scheme, the working electrode and the auxiliary electrode are inlaid structures, good airtightness is guaranteed, the distance between solution and a magnet and the distance between a photoelectric detection component and a luminescence point are minimum, and by the design of the annular auxiliary electrode, uniform distribution of electric fields of the working electrode can be guaranteed.
Owner:西安瑞迈分析仪器有限责任公司

Automobile headlamp

The invention relates to the technical field of automobile lighting, and provides an automobile headlamp which comprises a low-beam incident optical system for generating a low-beam light beam, a distance light incident optical system used for generating a distance light beam, a heat dissipation substrate having one side provided with the low-beam incident optical system and the distance light incident optical system, and a light emitting device used for collecting the low-beam light beam and the distance light beam and outputting the low-beam light beam and the high-beam light beam. The low-beam light beam and the distance light beam respectively form a first light area and a second light area on the light incident surface of the light emitting device, the second light area is arranged above the first light area, and the first light area and the second light area are partially overlapped; and a distance light and low beam conversion device is arranged between the heat dissipation substrate and the light emitting device. According to the invention, local heat accumulation of the heat dissipation substrate can be avoided, the heat dissipation efficiency is improved, the light collection rate of the light emitting device can be improved, and the ultra-long-distance lighting effect can be achieved.
Owner:GUANGZHOU UNIONLUX ELECTRONICS TECH CO LTD

Light emitting module and light receiving module

A plurality of first refraction surfaces (121) and a plurality of second refraction surfaces (122) are alternately provided on an emission surface of a lens element (120) so as to form concentric circles each having an optical axis (113) at the center thereof, and having diameters different from each other, and a light reflected by a plurality of reflection surfaces (123) provided on an incident surface of the lens element so as to form concentric circuits each having the optical axis (113) at the center thereof and having diameters different from each other, is refracted and emitted by the plurality of second refraction surfaces (122) at desired angles. Therefore, it is possible to enhance efficiency and an emission intensity, and reduce variations in brightness of an emitted light without increasing the diameter of the lens element (120), thereby realizing a light emitting module (100) enabling advantageous performance.
Owner:PANASONIC CORP

Water-cooled light-concentrating optical fiber probe used for stable section of hypersonic-speed low-density wind tunnel

The invention discloses a water-cooled light-concentrating optical fiber probe used for a stable section of a hypersonic-speed low-density wind tunnel. Optical glass, a convex lens and an optical fiber are sequentially installed on the axis of the optical fiber probe from front to back, and sealing rings I are installed on both sides of the optical glass; a protective sleeve is installed outside the convex lens and the optical fiber in a sleeving mode, the front end of the protective sleeve closely abuts against the sealing ring I behind the optical glass, and a boss is arranged at the rear end of the protective sleeve; a shell sleeves the optical glass and the protective sleeve and is internally provided with a cooling water channel. The cooling water channel is connected with an externally-arranged cooling water system through a cooling water connector installed on the shell. The rear end of the shell and the boss at the rear end of the protective sleeve are connected by a connectingnut, and the rear end of the shell and the boss at the rear end of the protective sleeve are sealed by a seal ring III; and a step is arranged on the middle part of the shell, and a nut is installedat the step in a sleeving mode. The optical fiber probe is simple in structure and high in reliability, and can lead light generated by high-temperature and high-pressure gas in the stable section ofthe hypersonic-speed low-density wind tunnel to an optical measuring instrument.
Owner:中国空气动力研究与发展中心超高速空气动力研究所

Scanner, wearable intelligent equipment and scanning system

The invention provides a scanner which comprises an optical support, a light source emitter installed on the optical support, a first reflecting mirror corresponding to the light source emitter, a second reflecting mirror corresponding to the first reflecting mirror, a swing assembly driving the second reflecting mirror to swing and a light source receiver. Light emitted by the light source emitter is reflected by the first reflecting mirror and the second reflecting mirror in sequence and forms a scanning light beam to scan a bar code, the lens is located in front of the light source receiver, and the light source receiver receives the light reflected by the bar code through the lens to read the bar code. Compared with the prior art, the lens is arranged in front of the light source receiver, so that light reflected by a bar code is refracted to the light source receiver through the lens for code reading, the light receiving efficiency is improved, the structure is simple, and the useis convenient.
Owner:上海浩创亘永科技有限公司

Laser light source and laser projector

The invention relates to a laser light source and a laser projector, and belongs to the field of laser projection display. The laser light source comprises a blue laser, a light gathering device and afluorescent device, wherein the light gathering device is positioned between the blue laser and the fluorescent device; the blue laser is used for emitting blue laser; the light condensing device isused for refracting the received blue laser to obtain non-collimated blue laser and transmitting the non-collimated blue laser to the fluorescent device; the fluorescent device is of a tubular structure, wherein at least part of the inner surface of the fluorescent device is a fluorescent area; the fluorescent area is used for emitting fluorescent light under excitation of blue laser; and the tubewall of the fluorescent device is used for reflecting the received blue laser and the fluorescent light. The fluorescent device is used for outputting light with different colors. The actual excitation efficiency of the fluorescent powder is improved. The invention is used for designing the laser light source.
Owner:QINGDAO HISENSE LASER DISPLAY CO LTD

PET detector based on crystal side coupling SiPM, and reading method thereof

The invention belongs to the technical field of medical imaging equipment, and particularly relates to a PET detector based on crystal side coupling SiPM, and a reading method thereof. The detector comprises a crystal array, a SiPM side coupling array, a front-end reading circuit and a data acquisition system; the crystal array is used for receiving gamma rays and enabling the gamma rays to deposit energy in the crystal array to generate visible light; the SiPM side coupling array is used for converting visible light into an electric signal; the front-end reading circuit is used for performing amplification forming, discrimination and analog-to-digital conversion processing on the electric signals output by the SiPM side coupling array to obtain time and energy information; and the data acquisition system is used for calculating the signal digital information obtained by the front-end reading circuit to obtain final energy, time and position information. The transition time of photons in the crystal can be reduced, and the time resolution performance and the light collection efficiency can be improved.
Owner:FMI MEDICAL SYST CO LTD

Optical sensing module, optical sensing accessory, and optical sensing device

The present disclosure relates to an optical sensing module, an optical sensing accessory, and an optical sensing device. A reflective optical sensor module comprises a light source and a first encapsulant, a photodetector and a second encapsulant, an electrode and a substrate. The light source is configured to convert electric power into radiant energy and to emit light to an object surface. The photodetector is configured to receive the light from an object surface and to convert radiant energy into electrical current or voltage. The electrode is configured to detect an external circuit formed by the contact with an object surface. The optical sensing accessory and the optical sensing device comprise the reflective optical sensor module and other electronic modules to have further applications.
Owner:TAIWAN BIOPHOTONIC

Lighting component and operating lamp

The invention relates to a lighting component. The lighting component comprises a lighting unit and a reflecting cup, wherein the reflecting cup is provided with an incident end and an emergent end; the lighting unit is positioned at one side of the incident end of the reflecting cup; the lighting unit comprises a light source, and the reflecting cup comprises a first reflecting element and a second reflecting element, and the reflecting surface of the first reflecting element is a plane or an ellipsoid; the reflecting surface of the second reflecting element is a semi-paraboloid, one of the reflecting surface of the first reflecting element and the reflecting surface of the second reflecting element faces the lighting unit, and the other faces an illuminating area; the light of the light source is reflected to the second reflecting element via the first reflecting element, and the light is collimated by the second reflecting element to be small-angle light; or the light of the light source is collimated by the second reflecting element to enter the first reflecting element, the angle of the light is deflected to the horizontal direction by the first reflecting element; the lighting component collimates the angle of the light through the reflection of the reflecting cup, so that the influence caused by material absorption is avoided, the energy loss is not caused, and the light collection efficiency is high.
Owner:SHENZHEN COMEN MEDICAL INSTR +1

Light source assembly and projection device

The embodiment of the invention discloses a light source assembly and a projection device, and belongs to the technical field of projection. The light source assembly comprises a laser for emitting a first light beam and a second light beam; a light combination assembly which comprises a reflection area and a transmission area, wherein the transmission area comprises a first transmission area and a second transmission area; the first light beam sequentially passes through a first lens, the first transmission area and a third lens and enters a third lens group; the second light beam sequentially passes through a second lens, the second transmission area and a fourth lens and enters the third lens group; the third lens group converges the incident first light beam and the incident second light beam and emits the light beams to a wavelength conversion device; and the wavelength conversion device which reflects or converts the incident light beam into fluorescent light and emits the fluorescent light to the third lens group, wherein the third lens group collimates the light beam and then emits the light beam to a reflection area of the light combination assembly, and the light beam is reflected to a light emitting direction by the reflection area. According to the embodiment of the invention, the light receiving efficiency of the light source assembly is improved.
Owner:QINGDAO HISENSE LASER DISPLAY CO LTD

Beta surface polluted-position resolution measurement method

The invention belongs to the technical field of radioactive pollution monitoring, and discloses a beta surface polluted-position resolution measurement method. The method is used for detecting the beta radioactive surface pollution by utilizing a beta surface polluted-position resolution detector, and comprises the following steps of acquiring a position relation standard curve and measuring the beta radioactive surface pollution. The method has the advantages of simplicity, low detection lower limit, large detection sensitive area, high measuring speed and capability of accurately measuring polluted-position information.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Beta-ray position detection device and method based on scintillating fibers

The invention discloses a beta-ray position detection device based on scintillating fibers. The device comprises a collimator and a position sensitive detector, wherein the collimator is used for allowing beta rays perpendicular to the incident position sensitive detector to strike the scintillating fibers in the position sensitive detector by virtue of the incident beta-rays perpendicular to the plane direction of the position sensitive detector; and the position sensitive detector is positioned in the rear of the collimator and is used for detecting the positions of the vertical incidence beta rays passing through the collimator. The invention also discloses a position detection method. According to the device and method disclosed by the invention, the two-dimensional position information of the beta rays can be simultaneously acquired by adopting an optical fiber fabric; light loss in light collection can be reduced, so that a large-area beta-ray position sensitive detector is possible; the light collection efficiency is improved, and position resolution and energy resolution are promoted; and moreover, the number of photomultipliers is greatly saved, and the cost is reduced.
Owner:中国人民解放军第二炮兵装备研究院第六研究所

Multifunctional Raman spectrometer

The invention is applicable to the technical field of spectrometers, and discloses a multifunctional Raman spectrometer which can simultaneously perform Raman spectrum and plasma spectrum analysis, on the basis of a Czerny-Turner light path structure, a reflecting mirror and a perforated reflecting mirror are additionally arranged to separate light before and after reflection, and meanwhile, the two concave reflecting mirrors are basically not deflected, so that the vertical heights of light spot focuses with different wavelengths on the image plane of a detector are reduced by 1 to 2 orders of magnitude, the sensitivity of the spectrometer is improved, meanwhile, the sizes of the light spot focuses with different wavelengths on the image plane of the detector in the horizontal direction are greatly reduced, and the resolution of the spectrometer is improved. Through the Raman spectrometer and a plasma luminescence spectrometer which are connected through a special optical fiber bundle, the analysis of the plasma luminescence spectrum can be realized.
Owner:QILU UNIV OF TECH

Small tip-enhanced Raman spectrum measurement device and detection method thereof

The present invention discloses a small tip-enhanced Raman spectrum measurement device and a detection method thereof. The device comprises a laser light source module, a dichroscope, an auxiliary calibration module, an objective lens and a three-dimensional translation stage which are sequentially arranged along a light path, and further comprises a long-pass optical filter, a laser focus lens and a spectral signal acquisition module which are sequentially arranged on the transmission side of the dichroscope, and a control and data processing module which is connected with the auxiliary calibration module, the three-dimensional translation platform and the spectral signal acquisition module. According to the scheme, a white light illumination and microscopic imaging light path, an excitation and collection light path and a Raman spectrum light path are organically integrated together, a sample, a needle tip and laser are accurately coupled by utilizing the white light illumination and microscopic imaging light path before measurement, the maximum excitation efficiency is realized, and the excitation and collection light path is directly coupled with the Raman spectrum light path, so that the loss of a peripheral light path in the measurement process is reduced, and the structure size of the whole measurement device is reduced while the spectral resolution capability is ensured by optimizing the light path structure of each part.
Owner:XIAMEN UNIV

Lighting Components and Surgical Lights

The invention relates to a lighting component. The lighting component comprises a lighting unit and a reflecting cup, wherein the reflecting cup is provided with an incident end and an emergent end; the lighting unit is positioned at one side of the incident end of the reflecting cup; the lighting unit comprises a light source, and the reflecting cup comprises a first reflecting element and a second reflecting element, and the reflecting surface of the first reflecting element is a plane or an ellipsoid; the reflecting surface of the second reflecting element is a semi-paraboloid, one of the reflecting surface of the first reflecting element and the reflecting surface of the second reflecting element faces the lighting unit, and the other faces an illuminating area; the light of the light source is reflected to the second reflecting element via the first reflecting element, and the light is collimated by the second reflecting element to be small-angle light; or the light of the light source is collimated by the second reflecting element to enter the first reflecting element, the angle of the light is deflected to the horizontal direction by the first reflecting element; the lighting component collimates the angle of the light through the reflection of the reflecting cup, so that the influence caused by material absorption is avoided, the energy loss is not caused, and the light collection efficiency is high.
Owner:SHENZHEN COMEN MEDICAL INSTR +1

Silver-copper bimetallic thin film for light anode and laser-induced membrane-changing method

The invention relates to a silver-copper bimetallic thin film for a light anode and a laser-induced membrane-changing method. In the silver-copper bimetallic thin film, the molar ratio of silver to copper is (1-7):(1-8). Dye sensitized solar cell light anode with an Ag-Cu bimetallic-TiO2 composite structure is prepared by substituting a laser-induced membrane-changing preparation method for an electron beam photoetching method and substituting an Ag-Cu bimetallic material for Au to serve as a surface plasma medium. A metallic titanium-supported titanium oxide membrane serves as a receiving substrate; the silver-copper thin film serves as a source matrix; the metallic titanium-supported titanium oxide membrane is placed below indium tin oxide (ITO) glass where the silver-copper thin film is deposited to perform laser-induced membrane changing. By the silver-copper bimetallic thin film for the light anode and the laser-induced membrane-changing method, dependence on high-cost noble metal in the prior art can be reduced, photovoltaic property of the dye sensitized solar cell is further improved, solar energy can be utilized to a larger degree, energy pressure can be relieved, and environment-friendly and low-cost development of the dye sensitized solar cell technique can be further promoted.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
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