60 results about "Far-red" patented technology

The invention relates to the technical field of train operation safety monitoring, and discloses a train obstacle detection method and system based on a four-eye sensor. The method comprises the following steps: constructing a three-dimensional sensing space fusing geometry, texture and temperature information by synchronously acquiring binocular visible light and binocular far infrared three-dimensional image data and carrying out cross validation and spatial association of heterogeneous visual information. And further combining orbit coordinate system constraints, dynamically generating and cutting a sensing space slice accurately corresponding to the rail-mounted area, and inputting the sensing space slice into the network to complete obstacle identification and positioning. And finally, calculating the threat degree based on the context, and generating an obstacle list. According to the method, multi-source heterogeneous information is fused, dynamic adaptation of a sensing space and a running orbit is realized, the robustness, the accuracy and the real-time performance of obstacle detection in a complex environment are improved, and false alarms and missing alarms are reduced.

This far-infrared analyzing device comprises: a holding mechanism configured to be capable of holding a specimen in moist air; a detector for detecting light obtained by emitting a far-infrared light beam onto the specimen; and a signal processing unit for computing an absorption spectrum of the specimen from a signal from the detector. The signal processing unit acquires: a first spectrum detected by the detector when the far-infrared light beam is emitted along a measurement optical path while the wavelength of the far-infrared light beam is changed, without the specimen being on the measurement optical path; and a second spectrum detected by the detector when the far-infrared light beam is emitted along the measurement optical path while the wavelength of the far-infrared light beam is changed, with the specimen on the measurement optical path. Then, a difference between the spectrum signals is calculated at frequency intervals determined in accordance with an absorption peak due to water vapor, and the frequency of the absorption peak due to water vapor is selected in accordance with a comparison between the difference and a threshold. Data removal is performed for the spectrum signals on the basis of the selected frequency.

The disclosure provides a system for cultivating a pepper plant, wherein the system comprises a light generating device and a control system, wherein the light generating device is configured to provide device light to the pepper plant, wherein the device light comprises one or more of red light and far red light, wherein the red light comprises one or more wavelengths in the range of 600-700 nm, and wherein the far red light comprises one or more wavelengths in the range of 700-800 nm.

The application discloses an oxyacetylene torch operation intelligent monitoring system and method, which comprises the following steps: 1, real-time image acquisition of the monitoring area is carried out through an information acquisition subprogram; then, data preprocessing is carried out through a data processing subprogram, and a target detection algorithm YoloV5 is used to identify and locate the target in the image; 2, the relationship between the specific target relative positions in the visible light image and the far infrared image is detected through a flame detection subprogram, a high-temperature area without visible fire or a flame area is judged and analyzed on site, and oxyacetylene flame and fire flame are distinguished; 3, the real-time state of the monitoring area is fed back through a result output subprogram, and the monitoring result is output. The application improves the monitoring accuracy, does not need supervision, and improves the safety of the torch operation.

This application discloses a high quantum efficiency near-zero thermal quenching far-red light-emitting plant supplement phosphor and its application. It is prepared by a high-temperature solid-state method and has the composition A2CaBi. 2‑x La x (PO4)2(P2O7):20%Eu 3+ , 0≤ x ≤20%, A = Cs, Li, Na, K, or Rb. This series of phosphors uses Eu as the base. 3+ As the light-emitting center, through La 3+ Effective control of the matrix crystal field to optimize Cs2CaBi 2‑x La x (PO4)2(P2O7) crystal structure, enhancing Eu 3+ Far-red light emission performance.

The invention discloses a plant factory full-band artificial light source system and a light environment self-adaptive intelligent dynamic adjustment method, and the system comprises a multi-band light source array which is composed of a visible light LED module, an ultraviolet light source module and a near-infrared heat source module which are independently divided according to spectral bands, and each module is provided with an independent constant-current drive circuit and a millisecond switching control unit, the controllable spectrum covering 400 nm to 1000 nm and partial ultraviolet and far infrared ranges can be output, and rapid switching and light mixing between wave bands can be achieved in the same plane. Through a modularized multi-band light source and independent driving, on-demand spectrum matching within the range of 400 nm to 1200 nm is achieved, ineffective radiation caused by traditional full-spectrum continuous irradiation is avoided, the actually-measured photosynthetically active radiation utilization rate is increased by about 32%, the overall energy consumption is reduced by 25% to 30% compared with a conventional system, and embedded spectrum monitoring and a TCN-RL mixed model are combined, so that the system has the characteristics of environmental abrupt change, high sensitivity and the like. Or conversion of different growth stages of crops can be realized, spectrum ratio adjustment can be completed within less than or equal to 20ms, and plant population light environment optimization is realized.

The invention discloses a Fourier transform spectrometer system of a multiband light source structure, which comprises a multiband light source conveying unit used for transmitting light of multiple bands; the collimation unit is used for collimating the light transmitted by the multiband light source conveying unit; the light beam combining unit is used for forming a combined light beam; the light splitting unit is used for respectively transmitting and reflecting the plurality of beams of light; the reflector unit is used for receiving the multiple beams of light transmitted or reflected by the light splitting unit and retroreflecting the multiple beams of light in the incident direction of the multiple beams of light; and the detection unit is used for converging the multiple beams of light reflected by the reflector unit and receiving and detecting the converged multiple beams of light. According to the invention, input wavebands can be selected and multiple wavebands can be measured simultaneously, and near-infrared light and far-infrared light can be measured simultaneously, so that the detection efficiency is improved.

To provide an optical member that appropriately transmits far-infrared rays having a wavelength of 8 μm to 12 μm and exhibits white color. In the present invention, in a CIE 1976 (L+, a+, b+) color space measured by an SCE method based on geometric condition c of JIS-Z8772:2009, L+ is 50 or more, a+ is −15 or more and 15 or less, and b+ is −15 or more and 15 or less, and an average transmittance TPIR (%) of light having a wavelength of 8 μm to 12 μm satisfies TFIR≥20.

The application discloses a method for regulating growth morphological indexes of Cunninghamia lanceolata seedlings and belongs to the technical field of plant growth promotion. ‑2 ·s ‑1 With 40 μmol m ‑2 ·s ‑1 mol m Blue light, red light, 1:1 L red / far red light, 1:2 L red / far red light and far red light with 40 μmol m The results show that the root system of the Cunninghamia lanceolata seedlings cultivated under 68% light intensity grows more vigorously, the increment of lateral branch length of the Cunninghamia lanceolata seedlings increases under low light intensity, the root-shoot ratio decreases, and the leaf area is large and thin.Compared with white light, blue light can promote the elongation of the Cunninghamia lanceolata seedling height, but the seedling stem thickening is inhibited, and the seedling root system grows weakly with low root-shoot ratio.Red light promotes the growth of the Cunninghamia lanceolata seedling leaves and root system, and the root-shoot ratio is high, but the elongation of the Cunninghamia lanceolata seedling height is inhibited.The far red light and the increase of the far red light proportion are beneficial to the elongation of the Cunninghamia lanceolata seedling height.

Provided is a terahertz radiation detection device capable of efficiently detecting radiation in a long-wavelength region from far-infrared light to at or above the terahertz range. The terahertz radiation detection device includes an imaging lens, a detection element, and a filter unit. The imaging lens faces a subject. The detection element detects terahertz radiation generated from the subject among light incident through the imaging lens. The filter unit includes: a silicon substrate that is disposed closer to the subject than the detection element and absorbs visible light and near-infrared light; and a plurality of structures periodically arranged on the silicon substrate. The filter unit transmits THz radiation incident on the structures. The structures prevent the reflection of light from far-infrared light wavelengths to predetermined wavelengths including THz radiation wavelengths.

1. The name of the design product: far infrared heater (6S). 2. The use of the design product: the design product is used for heating. 3. The design points of the design product: the shape of the product. 4. The picture or photo that best indicates the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: design 1A enlarged view is a partial enlarged view of A in design 1 perspective view 2, and design 2B enlarged view is a partial enlarged view of B in design 2 perspective view 2.

A method of altering a refractive property of a crosslinked acrylic polymer material by irradiating the material with a high energy pulsed laser beam to change its refractive index. The method is used to alter the refractive property, and hence the optical power, of an implantable intraocular lens after implantation in the patient's eye. In some examples, the wavelength of the laser beam is in the far red and near IR range and the light is absorbed by the crosslinked acrylic polymer via two-photon absorption at high laser pulse energy. The method also includes designing laser beam scan patterns that compensate for effects of multiphone absorption such as a shift in the depth of the laser pulse absorption location, and compensate for effects caused by high laser pulse energy such as thermal lensing. The method can be used to form a Fresnel lens in the optical zone.

The present application relates to a kind of multi-element composite energy field's terahertz wave irradiation water preparation system and method, including the irradiation box with irradiation cabin being arranged inside, the top of the irradiation box is equipped with terahertz irradiation device, pure water is input in the irradiation cabin, and the output pipeline of irradiation cabin passes through with the pure water cooling tank with far infrared baffles, and the generated terahertz irradiation water is aerated and mineralized by micro-bubble mineralizer and forms high-zinc oxygen-rich terahertz irradiation water.This preparation system helps to produce the high-zinc oxygen-rich terahertz irradiation water of supermolecular group, and reduces production cost.

1. Name of the designed product: medicine box (99 kinds of far infrared treatment patches). 2. Use of the designed product: for medicine packaging. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo best indicating the design points: perspective view.

The present invention discloses an inorganic light-emitting material and a preparation method thereof. The general formula of the light-emitting material provided by the present invention is Zn x Mg 1‑ x AM 10 O 17 :yCr 3+ ; wherein, 0 ≤ x ≤ 1, 0 < y ≤ 0.06; A is selected from one or more of the elements Ca, Sr or Ba; M is selected from one or more of the elements Al, Ga, Sc or Y; in this application, Cr 3+ is a luminescence activation ion. By regulating the matrix elements Zn, Mg, A, and M, the emission is mainly high-efficiency far red light with a peak of about 680 nm to 780 nm. The light-emitting material of the present invention has high light conversion efficiency, good thermal stability and chemical stability, and can be used for plant light supplementation. The far red light emitted by it can optimize the plant morphological structure through light signal regulation, and at the same time improve the light energy utilization efficiency, and is suitable for the light supplementation cultivation of high-value crops.

The invention discloses a heat preservation and light diffusion type PO film which comprises a base film layer and an outer surface coating layer. The base film layer is prepared from, by weight, 42%-58% of polyethylene, 32%-48% of ethylene-vinyl acetate, 2%-10% of far infrared blocking materials, 1%-12% of light scattering materials and 0.5%-10% of processing agents. And the outer surface coating layer is a hydrophilic waterborne polyurethane coating layer. The obtained PO film has multiple functions of heat preservation, light diffusion, dripping, fog dissipation and the like, the light transmittance of the PO film is 88% or above, the haze value is 78% or above, illumination is uniform and soft, the photosynthetic efficiency of crops can be improved, and crop growth is better facilitated.

The application discloses a random forest-based feedback type edema diagnosis and treatment integrated system, and belongs to the technical field of medical instruments.The system comprises a bioelectric impedance monitoring module, a control module and a far-infrared light irradiation array; the bioelectric impedance monitoring module and the far-infrared light module are connected with the control module; wherein the bioelectric impedance monitoring module measures the voltage of an edema site and transmits the voltage to the control module; the control module calculates the bioelectric impedance information according to the voltage, combines the patient's meta-information, evaluates the edema degree by using a random forest model, determines an irradiation scheme, and sends a control instruction containing the irradiation scheme to the far-infrared light irradiation array; and the far-infrared light irradiation array irradiates and treats the edema site of the patient according to the control instruction. The integrated system can be used at home by the patient to realize effective diagnosis and treatment of edema without excessive dependence on the treatment experience of doctors. The integrated system can shorten the recovery period of edema.

1. Name of the product in this design: Far-infrared energy meter. 2. The purpose of this design is: (1) It uses far-infrared heating and can be used as a far-infrared energy source to provide energy to the body; (2) It can be used as a physiotherapy device. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The invention discloses application of a mercury-aluminum-based compound in a middle and far infrared nonlinear optical material, and belongs to the technical field of optical materials, and the chemical formula of the mercury-aluminum-based compound is HgAl2Q4; wherein the Q is S, Se or Te; and the wavelength of the middle and far infrared rays is 3-12 microns. The HgAl2Q4 nonlinear optical crystal prepared by the invention has excellent optical performance, has a stronger nonlinear optical effect, realizes the balance between a frequency-doubled effect and a laser damage threshold, can realize efficient frequency conversion, and has a greater potential application value.

The invention relates to a passive refrigeration layer and a product using the passive refrigeration layer, the passive refrigeration layer comprises a layer A, a layer B and a layer C, the layer A, the layer B and the layer C are non-periodically stacked, the layer A is selected from oxide layers with the refractive index of n1, 1.4 < = n1 < = 1.43, the layer B is selected from oxide layers with the refractive index of n2, 1.6 < = n2 < = 1.9, the layer C is selected from oxide layers with the refractive index of n3, 2.1 < = n3 < = 2.15, and the layer C is selected from oxide layers with the refractive index of n2. And the total number of the A layers, the B layers and the C layers is greater than or equal to 90. The passive refrigeration layer can realize high transmission in a visible light wave band of 0.4-0.7 mu m, can form high reflection in an ultraviolet wave band of 0.3-0.4 mu m and a near-infrared wave band of 0.7-2.5 mu m to block solar heat radiation, can realize high-efficiency radiation heat dissipation in a middle and far infrared wave band of 2.5-25 mu m, and can realize high-efficiency heat dissipation when being applied to a camera, an infrared sensor, a vehicle-mounted optical system and other products. The imaging definition and the color fidelity are not influenced, and spontaneous cooling can be realized.

The present invention generally relates to devices, systems, and methods for detecting and measuring the radiant power and emissivity of nonthermal far infrared radiation (FIR) in 3-16 μm wavelength spectrum from the surface of a FIR-photons emitting object and, more specifically, in 8-14 μm wavelength range.

1. The name of the design product: far infrared heating table (6S). 2. The use of the design product: the design product is used for heating. 3. The design points of the design product: in the shape of the product. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a rare earth tungstate / chromic oxide composite spectrum regulation powder material as well as a preparation method and application thereof. The rare earth tungstate / chromic oxide composite spectrum regulation powder material is prepared from the following components in parts by weight: 30 to 85 parts of Pr2 (WO4) 3, 17 to 70 parts of Cr2O3, 1.8 to 2.2 parts of fluxing agent, 0.8 to 1.2 parts of surface modifier and 0.4 to 0.6 part of hyperdispersant. Through innovative composite material design and full-link process optimization, spectrum simulation precision, durability, processing performance and application flexibility are remarkably improved, an efficient solution is provided for visible light-near infrared-middle and far infrared multi-band camouflage, and military stealth efficiency and civil technology expansion potential are both achieved.

The invention provides a radiation refrigeration composition as well as a preparation method and application thereof. According to the radiation refrigeration composition disclosed by the invention, a small amount of surface texturing agent is introduced into a radiation refrigeration coating formula, and the surface tension difference caused by the surface texturing agent in a drying or curing process is utilized to spontaneously construct a micron-sized coarse structure; and the thermal radiation capacity of the coating in the middle and far infrared band and the multi-scale scattering effect of visible light and near infrared band are effectively improved, so that the refrigeration performance is remarkably enhanced. The preparation method disclosed by the invention is simple and convenient to operate, does not need complicated processing equipment, and has good process adaptability and large-scale application prospect. And meanwhile, the degree of surface roughness can be flexibly adjusted by adjusting and controlling the adding proportion and variety of the surface texturing agent in the coating, and the refrigeration performance is effectively improved.

The invention discloses a cultivation method of taste tomato seedlings, and particularly relates to the technical field of agricultural seedling raising, and the cultivation method comprises the following steps: S1, carrying out low-temperature variable-temperature stress initiation treatment on high-sugar-degree tomato seeds, S2, preparing a functional matrix by using probiotic fermentation wastes, and carrying out tray loading, s3, carrying out spectrum regulation and control by adopting a dynamically changing blue light, red light and far-red light ratio in a seedling raising period, S4, carrying out targeted water and fertilizer intervention by stages, including mild stress induction before field planting, and S5, carrying out targeted water and fertilizer intervention by monitoring seedling morphology and physiological parameters. And determining outplanting by taking the condition that the soluble sugar content of leaves is not lower than 6.5% of dry weight and the root activity is not lower than 0.35 mg.g <-1 >. H <-1 > as digital seedling standards. According to the method, through cooperation of multiple technologies, metabolism is directionally regulated and controlled in the seedling stage, the sugar degree, acidity and aroma substance complexity of fruits can be synchronously improved, standardized production of high-quality seedlings is achieved, and the method has the advantage of cyclic utilization of resources.

The present invention provides container-modular far-infrared drying equipment, which has a far-infrared light generator in a container with mobility so that a drying operation can be efficiently performed at various sites without restrictions caused by relocation, and, even if installed once at a work site, can be reused since the container can be moved to another work location and, even if moved to another work location, reduces dismantlement and reinstallation costs since the container is reinstalled in the other work location by performing an operation of dismantling only the container.

The invention relates to the technical field of medicinal plant cultivation and secondary metabolism regulation and control, in particular to a method for regulating and controlling scutellaria baicalensis growth and medicinal component accumulation based on ultraviolet and far-red light combined illumination. The invention provides a method for regulating and controlling growth of scutellaria baicalensis and accumulation of medicinal components by combined irradiation of ultraviolet B (UV-B) with the wavelength of 280-320 nm and far-red light (FR) with the wavelength of 700-750 nm. According to the method, growth inhibition caused by UV-B stress can be remarkably relieved, and the content of root flavonoid compounds is synchronously increased. It is proved that FR not only can significantly relieve growth inhibition caused by UV-B, but also can cooperate with UV-B to promote secondary metabolite accumulation. According to the method, a quantifiable and generalizable light environment regulation and control new strategy is provided for stress-resistant cultivation and quality improvement of medicinal plants.

[Problem] To provide an LED line light source unit for a photosynthetic organism artificial culturing device, the LED line light source unit increasing the cultivation yield of photosynthetic organisms while suppressing the cost of electricity. [Solution] The arrangement of LED elements in an LED line light source unit 100 for a photosynthetic organism artificial culturing device includes a red LED element 110 of 640-690 nm, a blue LED element 120 of 400-470 nm, and a far infrared LED element 130 of 710-740 nm. The number of red LED elements 110 accounts for approximately 70%, the number of blue LED elements 120 accounts for approximately 15%, and the number of far infrared LED elements 130 accounts for approximately 15%. The LED line light source unit is dispersed and arranged in a one-dimensional one-row arrangement, a two-dimensional three-row arrangement, and a three-dimensional three-row arrangement. The arrangement of the blue LED elements 120 and the far infrared LED elements 130 is alternately switched. A constant current control circuit 140 is provided, and driving is carried out at a constant current of a value that is lower than the value of the rated current of each LED element, that is, at a constant current value in a range of 1 / 4 to 3 / 4 the value of the rated current.

The application discloses a closed factory seedling raising method for Prunus triloba, which comprises Prunus triloba seedling raising substrate preparation and light environment regulation technology in different growth periods, determination of CO2 saturation points of Prunus triloba in each growth period under suitable temperature, humidity and light conditions, and determination of soil and Prunus triloba respiratory CO2 release rates, and preparation of a seedling raising substrate suitable for Prunus triloba growth and development; and light environment regulation treatment is carried out on Prunus triloba seeds after seedling emergence, and the light source is a red light, blue light and far red light LED lamp. The method shortens the seedling raising period of Prunus triloba, solves the seasonal limitation problem in the Prunus triloba seedling raising process, effectively guarantees the production quality of seedlings, and provides an efficient, high-quality and energy-saving closed plant factory seedling raising technology for large-scale supply of Prunus triloba landscape afforestation seedlings.