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113 results about "Light damage" patented technology

When we think of light damage, we think of fading, but fading is only the most recognizable form of damage. Light is a very common cause of damage to collections. Many materials are particularly sensitive to light: paper, cloth, leather, photographs, and media (inks, colorants, dyes, and many other materials used to create objects and art).

Preparation method and application of anti-photoaging collagen polypeptide

The invention discloses a preparation method and application of anti-photoaging collagen polypeptide. The preparation method comprises the following steps: unfreezing and cleaning silver carp skin, airing and cutting; naHCO3 is added, and soaking is carried out; adding Na2CO3 and carrying out ultrasonic impurity removal; performing ultrasonic-assisted treatment; adding protease for enzymolysis treatment; establishing an enzymolysis kinetic model under the alkaline protease condition; standing, cooling and centrifuging the enzymatic hydrolysate, collecting supernate, filtering, and performing vacuum freeze drying to obtain faint yellow SCSCP; the light aging resistant peptide SCSCP02 is separated, and the active peptide sequences of the light aging resistant peptide SCSCP02 are GPPGPPGTPGPQ, SGLPGPIGPPGPR and GLPGPIGPPGPR. The active substances which are extracted from the fish skin and have the anti-photoaging effect can reduce the risk of skin light damage caused by UVR by acting on various treatment targets, resource waste can be reduced, environmental pollution caused by biological resources can be relieved, and sustainable development of the industry can be promoted.
Owner:FARM PROD PROCESSING & NUCLEAR AGRI TECH INST HUBEI ACAD OF AGRI SCI

Light feeding instrument

The utility model discloses a light feeding instrument to solve the problem that retina light damage is possibly caused after long-term use in the prior art, and meanwhile, the treatment effect is also improved. Compared with the prior art in which only parameters such as red light source power and emergent light beam size are concerned, the utility model focuses on the important index of irradiance (power density), emergent light is a collimated Gaussian beam and the optical characteristics of eyes (a human eye refraction system is equivalent to a convex lens with a focal length of 17.2 mm). An optical component diffuser is additionally arranged at the position close to the cornea of a user, so that a collimated Gaussian beam is converted into diffused light to enter the eyes of the user, and diffused light spots are formed on the retina, the treatment area is sufficient, energy distribution is uniform, it is ensured that the irradiance is at the expected safety magnitude, and meanwhile the actual treatment effect is ensured.
Owner:ZHONGKANG HAIXIANG (XIAN) HOSPITAL MANAGEMENT CO LTD

Pupil adaptive red light regulation and control method and system based on EC film and light source cooperation

The invention discloses a pupil adaptive red light regulation and control method and system based on EC film and light source collaboration, and the method comprises the steps: obtaining a visible light image of the eyes of a user through an image collection module, and extracting a real-time pupil state parameter through an image processing module; meanwhile, the ambient light sensing module obtains ambient light intensity data. The cooperative control unit receives the parameters and generates a luminous flux control instruction set containing a first control instruction and a second control instruction based on a safety evaluation model. The first control instruction drives the electrochromic film assembly to change the light transmittance of the red light, and the second control instruction adjusts the luminous intensity of the red light source. Through cooperative control of optical attenuation of the electrochromic film and luminous intensity of the light source, the luminous flux entering the retina can be accurately regulated and controlled in real time according to dynamic changes of pupils, the problem of potential retina light damage risk caused by using a light source with fixed intensity is effectively solved, and the safety of red light irradiation application is remarkably improved.
Owner:XIAMEN HAOTONGBAN IOT TECH CO LTD

Method for rapidly and effectively screening light protection active peptide from collagen hydrolysate

The invention relates to the technical field of biological active peptides, in particular to a method for rapidly and effectively screening light protection active peptides from collagen hydrolysate. The invention relates to an application of a photoprotective polypeptide in preparation of a product. The product has at least one of the following purposes: (1) maintaining or increasing the water content of skin; (2) preventing and / or slowing down skin aging; (3) prevention and / or alleviation of skin UVB injury; and (4) promoting healing of skin wounds or wound surfaces. Two key signal factors (NF-kB, AP-1) and a key matrix metalloproteinase (MMP-9) are screened from a mitogen-activated protein kinase (MAPK) and nuclear factor-kB (NF-kB) pathway to be used as docking targets, and a mimic peptide and the three targets act synergistically to make up for the defect that a single target screening peptide is difficult to comprehensively cope with a light damage multivariate pathway, so that the application of the mimic peptide to the light damage multivariate pathway is realized, and the application of the mimic peptide to the light damage multivariate pathway is realized. And the collagen peptide with excellent light protection activity is obtained through screening.
Owner:SICHUAN UNIV

Intelligent illumination control system for greenhouse plant growth

The invention relates to the technical field of facility agriculture and environment control, and discloses an intelligent illumination control system for greenhouse plant growth. In order to solve the problems that an existing light supplementing strategy lacks physiological feedback, light damage is easily caused, and shutdown is caused by sensor faults, the system comprises a multi-mode sensing assembly, a central processing unit and a dynamic spectrum execution assembly. The system collects crop non-photochemical quenching coefficients (NPQ) and environmental factors in real time, and dynamically calculates light saturation points by using a multi-factor coupling model; when the NPQ exceeds a threshold value, the spectrum ratio is automatically adjusted to inhibit light stress; three-dimensional canopy scanning is combined to realize gridding differentiation light supplement; when the sensor fails, virtual parameters are reconstructed based on the temperature trend to maintain fault-tolerant operation; in addition, the system estimates stomatal conductance according to air humidity and matrix conductivity, and dynamically corrects target light intensity to avoid aggravation of water deficit; accurate light supply according to needs is achieved, the photosynthetic efficiency and the system reliability are remarkably improved, and the system is suitable for plant factories and multi-span greenhouses.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

New use of a long-stalked ilex glycoside in skin care products and active compositions and skin care products

The present application relates to a kind of long stem ilex ginseng new use in skin care product and active composition and skin care product, product is emulsion, cream, water agent, spray, gel and other skin care products, the components of emulsion include: active composition, humectant, emollient, emulsifier, thickening agent and deionized water, the mass percentage content of active composition in skin care product is 0.005%-0.1%, active composition includes long stem ilex ginseng and wujin ginseng, the mass ratio of long stem ilex ginseng and wujin ginseng is 5:1-1:1, long stem ilex ginseng has at least one of the following effects: (1) UVB light damage pre-protection to skin;(2) after UVB light damage repair to skin;(3) up-regulate the trichohyalin gene expression in skin cell.The long stem ilex ginseng of the present application has the effects of UVB light damage pre-protection to skin, after UVB light damage repair to skin and up-regulating the trichohyalin gene expression in skin cell to repair skin barrier.
Owner:YUNNAN YUNKE CHARACTERISTIC PLANT EXTRACTION LABORATORY CO LTD +1

Multi-threshold image segmentation system, method, and media for supply chain product inspection

This invention discloses a multi-threshold image segmentation system, method, and medium for supply chain product inspection. The multi-threshold image segmentation method for supply chain product inspection includes: acquiring supply chain product images; preprocessing the supply chain product images to obtain preprocessed images; generating explosion sparks based on the preprocessed images using an explosion operator; randomly selecting several fireworks and performing Gaussian mutation operations to generate mutated sparks; mapping explosion sparks and mutated sparks exceeding the boundary range back to the feasible range according to an exponential perturbation mapping rule, and generating a new fireworks population according to a random selection strategy; determining whether the new fireworks population meets the termination condition; if so, segmenting the preprocessed images using the optimal threshold to obtain segmented images; and detecting supply chain products based on the segmented images. This multi-threshold image segmentation method for supply chain product inspection solves the problem in existing technologies where the human eye cannot easily identify slightly damaged parts of products in the equipment supply chain.
Owner:BEIJING INST OF TECH

A multi-photon fiber array endoscopic imaging device and method based on hollow helical scanning

ActiveCN120918554BSurgeryEndoscopesGroup velocity dispersionFiber array
The application discloses a kind of multi-photon fiber array endoscopic imaging device and method based on hollow spiral scanning, belong to biological imaging technical field.The device includes laser collimation and beam expansion module, pulse chirp module, beam switching module, endoscopic detection module and fluorescence acquisition module.The beam switching module contains optical switch and at least two low group velocity dispersion single-mode fiber array;Endoscopic detection module drives fiber array to perform hollow spiral scanning by resonant driver, its track starting point is not located at the origin of field of view, to avoid central dense sampling.The method switches fiber by optical switch, so that each fiber performs spatial non-overlapping hollow spiral scanning, collects multi-photon signals such as fluorescence, second harmonic and fluorescence lifetime, and completes the central cavity by image reconstruction and fusion, to obtain complete field of view imaging result.The application significantly reduces the central region light damage, improves the uniformity of imaging resolution, and the fused image is based on physical sampling to ensure authenticity and reliability, with high system stability.
Owner:SHENZHEN UNIV

Sunscreen composition for resisting blue light and repairing light damage as well as preparation method and application of sunscreen composition

The invention belongs to the technical field of anti-blue-light and light-damage-repairing sunscreen compositions, and discloses an anti-blue-light and light-damage-repairing sunscreen composition and a preparation method and application thereof.The anti-blue-light and light-damage-repairing sunscreen composition is prepared from microencapsulated modified spirulina maxima extract, porous calcium sodium borosilicate and polymethyl methacrylate, the particle size of the polymethyl methacrylate is 1 to 3 [mu] m, and the particle size of the polymethyl methacrylate is 300 to 500 nm. The spirulina maxima extract in the anti-blue-light sunscreen repair composition has a slow release effect after being subjected to microencapsulation modification, and is more easily captured by pores of the porous calcium sodium borosilicate after being modified, and polymethyl methacrylate of two sizes is interspersed to form a network to prevent agglomeration and sedimentation of each component through a steric hindrance effect; the composition can be uniformly dispersed in the sunscreen composition.
Owner:NOX BELLCOW COSMETICS CO LTD +1

Application of aronia melanocarpa extract in prevention and / or treatment of retinal diseases

The invention relates to the technical field of biological medicine, in particular to application of aronia melanocarpa extract in prevention and / or treatment of retinal diseases. The invention discovers that the aronia melanocarpa extract effectively protects the functions of photoreceptor cells and bipolar cells by remarkably improving the expression of rhodopsin (RGO) and stem inhibition protein (SAG) genes in the retina and inhibiting the up-regulation of inflammatory factors TNF-alpha at the same time; in addition, cell apoptosis caused by light damage can be relieved by reducing TUNEL positive cells of the retinal outer nuclear layer (ONL), and therefore the structural integrity of the retina is maintained on the cellular level. Through the mechanisms, the aronia melanocarpa extract recovers normal electrophysiological reactions of photoreceptors and bipolar cells and protects the retina from further injury. The invention provides an effective strategy and theoretical basis for application of the aronia melanocarpa extract in prevention and treatment of retinal diseases caused by light damage.
Owner:RENHE GLOBAL (SHANGHAI) GRAND HEALTH RESEARCH INSTITUTE CO LTD

Binocular night vision goggles with objective lens protection

The utility model discloses a binocular night vision goggles for protecting objective lenses, which relates to the technical field of night vision devices and comprises a goggles bracket, night vision goggles and objective lens sheaths. And the night vision goggles are rotationally connected to the lower part of the goggle frame and provided with objective lenses at one end and eyepieces at the other end. The objective lens sheath is clamped and fixed outside the objective lens, and a light reducing lens is arranged in the objective lens sheath, so that the objective lens is prevented from being damaged by strong light, and testing and internal state observation are not hindered. The objective lens sheath is composed of an end cover, a clamping ring, a support, a through hole and a light reducing lens, the end cover is provided with a sliding groove and a clamping groove to stably clamp the objective lens, the clamping ring is fixed outside the night vision goggles, the support is n-shaped to avoid the convex portion of the objective lens, and the through hole facilitates observation and testing. According to the night vision goggles, the durability and the use safety are improved, the maintenance and test process is simplified, and the night vision goggles are suitable for various scenes such as military, law enforcement, outdoor exploration and night driving.
Owner:童翊峰

Groove type photoelectric sensor with collision monitoring function

The utility model relates to the technical field of photoelectric sensors, in particular to a groove type photoelectric sensor with a collision monitoring function, which comprises a shell, and a circuit board is arranged in an inner cavity of the shell. An accelerometer sensor used for monitoring the motion state of the linear module in real time, a microprocessor used for receiving signals of the accelerometer sensor and processing and analyzing the signals and an alarm used for sending out alarm signals are integrated on the circuit board, and a pair of transmitting and receiving diodes used for detection is arranged on the circuit board. According to the utility model, the accelerometer sensor, the microprocessor and the alarm are integrated in the groove-type photoelectric sensor, so that the microprocessor can process and analyze monitoring signals of the accelerometer sensor, and when the analyzed signals reach a threshold value, the microprocessor can permanently store acceleration values and give an alarm through the alarm; the problem that early-stage light damage of the linear module is not easy to find is avoided, it can be guaranteed that maintenance personnel conduct maintenance in time through alarm information, and the service life of the linear module is greatly prolonged.
Owner:苏州众拓自动化科技有限公司

Preservation liquid bottle for islet cells

The utility model relates to the technical field of preserving fluid bottles, in particular to a preserving fluid bottle for islet cells, which comprises a bottle body, a bottle cap is screwed at the top end of the bottle body, a plug is integrally formed on the surface of the bottle cap, a rubber cover is fixed inside the plug, an elastic band ring is fixed at one end of the rubber cover, and after the rubber cover is turned outwards and sleeved on the outer side of the bottle body, the elastic band ring is fixed at the other end of the rubber cover. The elastic band ring is positioned below the bottle body; the preserving fluid bottle for the islet cells has the advantages that due to the design of the rubber cover, the rubber cover can be contained between the chock plug and the baffle when the preserving fluid bottle is not used, the rubber cover can be turned outwards to be arranged on the outer side of the bottle body in a sleeving mode, the shading effect is achieved, and the islet cells are protected against light damage. After the rubber cover is turned outwards and arranged on the outer side of the bottle body in a sleeving mode, the anti-collision capacity of the bottle body can be improved, and the bottle body is prevented from being damaged due to collision in the transportation or storage process. Due to the design of the elastic band ring, the rubber cover can be firmly fixed to the bottle body and is not prone to falling off, and meanwhile a user can conveniently take down or sleeve the rubber cover at any time according to needs.
Owner:NANJING PINGGANG BIOTECHNOLOGY CO LTD

A fishing float with replaceable tail light

The utility model discloses a can replace fish float of tail light, including middle shell, the inner bottom wall fixedly connected with the lamp stand of middle shell, the inner wall fixedly connected with button cell of lamp stand, the top fixedly connected with the light source of lamp stand, the inner bottom wall fixedly connected with the cylindrical seat of middle shell, the inner wall fixedly connected with first magnet piece of cylindrical seat, the outer surface fixedly connected with the clamping point of cylindrical seat, the inner top wall fixedly connected with second magnet piece of lamp stand, the inner wall of lamp stand is seted up and has the lock catch groove, this can replace fish float of tail light, when replacing whole lamp stand, rotates the lamp stand, rotates along the lock catch groove, rotates the clamping point to the lock catch groove export place, then lifts the lamp stand and makes first magnet piece and second magnet piece separate, can take down whole lamp stand to when tail light appears damage, and fisherman does not need to replace whole fish float, only needs to replace tail light damage part, avoids causing resource waste, reduces use cost.
Owner:SHENZHEN ZHIKUNXIN TECHNOLOGY CO LTD

A vitamin k co-crystal material for use in photodynamic therapy and a method of making the same

ActiveCN119118814BAntibacterial agentsPhotodynamic therapyCharge-transfer complexPenetration depth
The application belongs to the field of photodynamic therapy, and specifically discloses a vitamin K co-crystal material for photodynamic therapy and a preparation method thereof. The vitamin K co-crystal material takes vitamin K as an electron acceptor, and the two carbonyl groups at the para positions of the vitamin K quinoid six-membered ring make the vitamin K exhibit electron deficiency, form an organic charge transfer complex with the electron acceptor, and self-assemble to form a co-crystal, so that the absorption spectrum of the system is widened, a wider wave band of light is more effectively utilized, the photodynamic therapy response wavelength of the vitamin K is adjusted from the ultraviolet region to the visible region and the near infrared region, the problem of low penetration depth and light damage caused by photodynamic therapy using light in the ultraviolet region is avoided, and the vitamin K has excellent photodynamic performance and good application prospects in surface sterilization and disinfection, treatment of body surface infection, and directional cancer treatment based on visible light or near infrared light.
Owner:SHANTOU UNIV

Composition for suppressing or improving eye fatigue

An object of the present invention is to provide a composition for preventing visual dysfunction caused by exposure to light, such as so-called blue light. The present invention provides a composition comprising a lactic acid bacterium as an active ingredient for use in suppressing or improving conditions caused by retinal inflammation resulting from light damage. Eye discomfort is an exemplary condition caused by retinal inflammation resulting from light damage.
Owner:KIRIN HOLDINGS KK

Haematococcus cultivation method based on flexible LED array and photobioreactor

The invention discloses a haematococcus culture method based on a flexible LED array and a photobioreactor, and relates to the field of bioengineering, and the method comprises the following steps: preparing an SE culture medium according to the growth requirements of haematococcus; pumping the SE culture medium into the sterilized and cooled photobioreactor to a working volume through a sterile pipeline; the photobioreactor is started, sterile air with set flow is introduced, and mild stirring is carried out. According to the invention, the flexible LED array is adopted to surround the transparent reaction inner cavity, so that three-dimensional light distribution is realized, illumination dead angles are eliminated, and the light receiving uniformity of cells is greatly improved; an OD680-target light intensity linear curve is fitted through a pre-experiment, a reactor controller and an LED driving module are combined, light intensity automatic linear adjustment is achieved, light damage is avoided, and the photosynthetic efficiency is greatly improved compared with a traditional rigid LED. The photobioreactor realizes integrated control of illumination and ventilation, reduces manual operation, reduces pollution risk, is stable in product content among batches, and meets the requirements of industrial large-scale production.
Owner:云南爱尔发生物技术股份有限公司

Performance testing system, device and method for a pancreatic cancer vaccine

The present invention discloses a performance test system, device and method for a pancreatic cancer vaccine, which relates to the technical field of biomedical detection. This system includes units such as anti-adsorption storage, light-shielded transmission, buffer stabilization and interference correction detection. The device includes an intelligent syringe, a light-shielded dark box device and a microfluidic detection chip. The method covers steps such as standardized reconstitution, full-process light-shielded storage, specific detection and expiration date determination. By means of technical measures such as coating a specific coating on the inner wall of the syringe, designing a unique light-shielded structure, optimizing the buffer and detection system, etc., the LNP adsorption rate is significantly reduced, light damage is reduced, the buffer is stabilized, and the T cell response detection value is corrected. The present invention effectively improves the accuracy and reliability of the performance test of the pancreatic cancer vaccine, provides strong support for vaccine quality control and clinical application, and has innovation, practicability and good application prospects.
Owner:AFFILIATED HOSPITAL OF NANTONG UNIV

Fluorescent probe based on naphthalene derivative, preparation method of fluorescent probe and application of fluorescent probe in pH detection

The invention belongs to the field of chemical detection, and relates to a fluorescent probe based on naphthalene derivatives, a preparation method of the fluorescent probe and application of the fluorescent probe in pH detection. The selected fluorophore naphthalene derivative has the advantages that the raw materials are simple and easy to obtain, the emission wavelength is in a visible light region, and the Stocks displacement is large (137 nm), so that the fluorescent probe pHP1 has the advantages of low background interference, small light damage to biological samples, strong sample penetrability, good light stability, high detection sensitivity and the like.
Owner:ZHENGZHOU NORMAL UNIV

Aggregation-induced emission type photosensitizer as well as preparation method and application thereof

The invention belongs to the technical field of photosensitive materials, and particularly relates to an aggregation-induced emission type photosensitizer as well as a preparation method and application thereof. The aggregation-induced emission type photosensitizer provided by the invention has a structure as shown in any one of formulas I-III. The aggregation-induced emission (AIE) photosensitizer has large Stokes shift, can emit light in a near infrared region I (NIR-I), and is beneficial to penetrating deep biological tissues and reducing light damage to the biological tissues; meanwhile, the AIE type photosensitizer has relatively strong I type active oxygen generation capability, and is expected to be used as a photosensitizer for photodynamic therapy. Formula I, Formula II and Formula III.
Owner:INNER MONGOLIA UNIVERSITY

Organic compound, composition, organic light-emitting device and display panel

The invention relates to an organic compound, a composition, an organic light-emitting device and a display panel. The organic compound has a structure as shown in a formula (1): # imgabs0 #, wherein X1 and X2 are selected from N or CH; y is selected from O or S; l1, L2 and L3 are respectively and independently selected from a single bond, a substituted or unsubstituted aryl group with the carbon atom number of 6 to 20, and a substituted or unsubstituted heteroaryl group with the carbon atom number of 4 to 20; r is selected from H, methyl or phenyl, and m is selected from any integer from 0 to 3; ar1 is selected from substituted or unsubstituted aryl with the carbon atom number of 6 to 20 and substituted or unsubstituted heteroaryl with the carbon atom number of 2 to 20; the organic compound provided by the embodiment of the invention has relatively high glass transition temperature and thermal stability; meanwhile, high extinction can be realized in an ultraviolet region, low extinction can be realized in a visible region, and a high refractive index is realized; the material can be used as a light extraction layer of the organic light-emitting device to protect the interior of the device from being damaged by harmful light and improve the light extraction efficiency of the organic light-emitting device.
Owner:GUANGZHOU CHINARAY OPTOELECTRONICS MATERIALS LTD

High-speed wide-field multi-plane tomography method and device based on Bessel beam

The invention discloses a high-speed wide-field multi-plane tomography method and a high-speed wide-field multi-plane tomography device based on Bessel beams. The high-speed wide-field multi-plane tomography method comprises the following steps of excitation beam adjustment, Bessel beam modulation, illumination selection and multi-plane imaging. The surface scanning Bessel beam and the multi-plane imaging technology are adopted, tomography is achieved, meanwhile, objects at different axial positions are mapped to different areas of the image sensor, high-speed three-dimensional imaging is achieved, and the volume imaging collection rate is increased. Meanwhile, an illumination technology is selected, an illumination area can be adjusted in real time according to different sample structures and work, background light and light damage to the samples are further reduced, and high-speed wide-field multi-plane tomography is achieved.
Owner:ZHEJIANG HEHU TECH CO LTD

A retinal light damage box experimental device for observing mouse optokinetic response

ActiveCN116849138Bavoid trial and errorShort experiment cycleLight irradiationControl system
The application discloses a retinal light damage box experimental device for observing mouse visual dynamic response, which comprises a reflecting box body, a box cover hinged to one side of the top end of the reflecting box body, the box cover being matched with the reflecting box body, a light irradiation assembly fixedly connected to one side of the box cover close to the inside of the reflecting box body, the inner wall of the reflecting box body being used for reflecting the light emitted by the light irradiation assembly, the light irradiation assembly being electrically connected with a control system, a frequency adjusting assembly fixedly connected to the middle of the bottom end of the reflecting box body, the frequency adjusting assembly being covered on a placing table, the frequency adjusting assembly being correspondingly arranged on the inner wall of the reflecting box body, and a placing assembly fixedly connected to the middle of the top end of the placing table, the experimental mouse being placed in the placing assembly, the light irradiation assembly and the frequency adjusting assembly being correspondingly arranged on the placing assembly. The application realizes dynamic observation of the light damage condition of the experimental animal, avoids repeated experiments, shortens the experimental period and improves the experimental efficiency.
Owner:SHANTOU UNIV·CHINESE UNIV OF HONG KONG JOINT SHANTOU INT OPHTHALMOLOGY CENT

Internal polluted cocoon sorting device

The invention discloses a sorting device for internally polluted cocoons. The sorting device comprises a cocoon stripping and discharging mechanism, a differential flow dividing mechanism, an intelligent detection mechanism and a sorting execution mechanism, according to the cocoon stripping and discharging mechanism, cocoon and coat separation is achieved through relative movement of a cocoon stripping belt and a cocoon stripping roller, silkworm cocoon arrangement is achieved through a cocoon discharging roller, the differential flow dividing mechanism achieves silkworm cocoon flow dividing through mutual cooperation of a photoelectric sensor and a lead screw, and the silkworm cocoon recognition efficiency is improved; the intelligent detection mechanism analyzes the light transmission of silkworm cocoon layers by using a photoelectric technology, identifies internal polluted cocoons, and simultaneously controls a plurality of sorting execution mechanisms to automatically sort silkworm cocoons, so that the silkworm cocoon sorting efficiency is improved. Under the condition that the silkworm cocoons are not damaged, the silkworm cocoons which are not obvious in surface characteristics but polluted in cocoon shells, such as internal printing cocoons and bleeding pupa cocoons, are picked out, the problems that vision is damaged due to long-time direct vision of strong light by human eyes, and subjective influence of human eye discrimination is large are solved, and the production efficiency and the automation level of enterprises can be improved.
Owner:CHINA JILIANG UNIV

Wide-spectrum strong-light damage real-time detection device for silicon photodiode

The invention relates to a silicon photodiode wide-spectrum strong light damage real-time detection device, and belongs to the field of optical detector performance detection. The device comprises a wide-spectrum strong light measurement performance detection part and a wide-spectrum strong light tolerance performance detection part, the wide-spectrum strong light measurement performance detection part is mainly used for real-time detection of the wide-spectrum strong light measurement performance of the silicon photodiode, and the wide-spectrum strong light tolerance performance detection part is mainly used for real-time detection of the wide-spectrum strong light tolerance performance of the silicon photodiode. The two parts take respective detected silicon photodiodes as wide-spectrum strong light detectors, and acquire real-time output current of the respective detected silicon photodiodes through respective operational amplifiers, shunt resistors, anti-phase input end resistors and bridging resistors; and thus, the real-time wide-spectrum strong light measurement performance and the wide-spectrum strong light tolerance performance of the silicon photodiode can be obtained. The device has the characteristics of high timeliness for detecting the limit performance of the silicon photodiode, simplicity, intuition, convenience in use and high reliability.
Owner:RES INST OF CHEM DEFENSE PLA ACAD OF MILITARY SCI

Light-emitting fishing rod section

ActiveCN224419825UImprove prompt effectImprove luminous performanceEngineeringFishing
This utility model discloses a luminescent fishing rod section, comprising a section body, a light source device, and an optical fiber body. The section body includes an opaque section and a transparent section, and has a cavity. The light source device is disposed in the cavity and has a light-emitting part. The optical fiber body includes a smooth section and a rough section integrally formed and connected. By placing the light source device in the cavity, the light emitted by the light-emitting part is emitted from left to right in the cavity. With the left end of the smooth section close to the light-emitting part and the rough section located inside the transparent section, the optical fiber guides the light emitted by the light-emitting part to the rough section. The roughness scatters the light through the transparent section, allowing anglers to observe fish bites based on the light scattered by the rough section. This design, which eliminates the need for a glow stick, significantly improves the rod's ability to indicate fish bites and avoids damage to the delicate rod tip. Furthermore, the smooth section is less likely to scatter the light emitted by the light-emitting part, reducing light damage and resulting in a better luminescent effect on the fishing rod.
Owner:DONGGUAN YOUBAO FISHING TACKLE

Light response type curcumin antibacterial preservative film as well as preparation method and application thereof

The invention provides a light response type curcumin antibacterial preservative film and a preparation method and application thereof, the preservative film is of a double-layer composite structure, an inner layer is a light response antibacterial layer which takes polyethyleneimine modified sodium alginate as a base material, is covalently grafted with curcumin through an amido bond and is uniformly dispersed with graphite-like phase carbon nitride (g-C3N4); and the outer layer is a protective barrier layer which takes polyhydroxyalkanoate as a base material and is loaded with nano SiO2 and VE / hydroxypropyl-beta-cyclodextrin inclusion compound. The preparation of the antibacterial film can solve the problem that curcumin is easy to migrate and lose, the efficient antibacterial effect is realized by utilizing the light synergistic effect of g-C3N4 and curcumin, and meanwhile, the outer layer film effectively prevents the damage of illumination to fruits and vegetables while ensuring the light triggering efficiency of the inner layer by scattering strong light and scavenging free radicals. The film has long-acting antibacterial, antioxidant and physical barrier functions, and is suitable for high-quality preservation of foods such as fruits, vegetables and the like.
Owner:BOHAI UNIV

Cultural relic acoustic emission multi-source information disease monitoring method and device

The invention discloses a cultural relic acoustic emission multi-source information disease monitoring method and device, and the method comprises the steps: building a three-dimensional model through sound signals received by acoustic emission receivers erected around a cultural relic, and carrying out the intelligent correction of the model through combining with the data of an environment sensor, thereby generating a cultural relic model. And then comparing the correction model with a standard model to locate a difference region, extracting a cultural relic disease section based on a difference position and converting the cultural relic disease section into a high-contrast binary image, specifically representing that the model part is black and the disease part is white, and identifying the disease type and degree through image processing. And finally outputting disease position, type and degree information. According to the method and device provided by the invention, acoustic emission modeling, environment dynamic correction and image recognition technologies are fused, non-contact monitoring is realized, the light damage risk of traditional optical shooting to cultural relics is thoroughly avoided, the problems of low manual monitoring efficiency and difficulty in small disease recognition are solved, and the disease detection precision and protection efficiency of the cultural relics are remarkably improved.
Owner:SHAANXI HISTORY MUSEUM

Dazzle light removing method, computer equipment and storage medium

The invention provides a dazzle light removing method. The method comprises the steps that a night light emitting model containing a dominant light source and a non-dominant light source is established through radiation transmission analysis; the method comprises the following steps: acquiring HDR night scene dazzle light damaged image data, and preprocessing and normalizing the data to obtain standardized data; aiming at input data, an unsupervised exposure guide label generation method is adopted, and a dazzle light area around a dominant light source and a non-dominant light source is positioned based on modulus imaging constraint; introducing a Uform network guided by an exposure label, combining with an exposure guide mask attention mechanism, and jointly optimizing a dazzle light and background decomposition and reconstruction process through exposure guide loss; based on a pseudo-label guided light source recovery method, decoupling a dominant overlapped light source under the constraint of exposure and connectivity, and retaining a non-dominant light source; and fusing the non-glare background reconstruction result and the light source reconstruction result to obtain output image data which is free of glare and contains an ideal light source. The method has the advantages of breaking through light source and dazzle light marking dependence, improving the reconstruction precision of the overlapped light source and the weak light source, enhancing the supervised learning ability and effectively removing night dazzle light artifacts.
Owner:WUHAN UNIV OF SCI & TECH

Application of effective components of guava fruits in eye protection

The invention provides application of effective components of guava fruits in eye protection, and belongs to the technical field of biological medicine. The invention provides an application of effective components of guava fruits in preparation of eye protection medicines, an application in preparation of medicines for treating retina light injury and an application in preparation of medicines for inhibiting apoptosis of eye cells. According to the embodiment of the invention, a zebra fish blue light eye injury model and a mouse retina light injury model are constructed and treated by using the effective components of the guava fruits, and the effective components of the guava fruits are found to have a protective effect on eye cell apoptosis, retina injury and the like, and the protective effect of the effective components is equivalent to that of xanthophyll.
Owner:INNOVATION CENTER OF YANGTZE RIVER DELTA ZHEJIANG UNIVERSITY