63results about How to "Improve uniformity of irradiation" patented technology

The invention relates to a tobacco leaf and a green mould proof method of products thereof, which is characterized in that after raw tobacco leaves are packed by a corrugated case provided with a plastic inner liner, or packed and sealed cigarette finished product packing boxes are directly irradiated by ray with the dosage of 4kGy-10kGy, so that the aims of killing and preventing mould can be achieved. The invention has the advantages that electron accelerator irradiation technology is adopted and is easy to combine with the existing tobacco processing technique, and irradiation can be taken as a working procedure in the process flow of the tobacco processing technique; an electron accelerator is directly installed in a flow line of tobacco processing, so that automation is easy to realize; the ray generated by the electron accelerator has higher energy and can penetrate the cigarette boxes, so as to rapidly and thoroughly kill the mould in the tobacco leaves and the products thereof with high efficiency for once, reduce mildew loss, and lower the administrative expense on a tobacco barn; furthermore, the ray can kill pests in tobacco storage, accelerate the alcoholization of the tobacco leaves, and improve the suck quality of the tobacco leaves, so that the invention has practicability; in addition, the invention opens up a new path for preventing mould of the tobacco, thus having considerable market prospect.

The invention discloses a piece of parallel light curing equipment with staggered area array light sources. The parallel light curing equipment comprises a conveying device, an area array light source curing device, a cooling device, a light source control device and a working table, wherein the cooling device is connected with the area array light source curing device, the light source control device is connected with the area array light source curing device, and the area array light source curing device is installed on the working table. The working table comprises a trolley. The trolley is movably arranged inside the working table. A longitudinal guiding rail and a guiding rail driving mechanism are arranged at the upper portion of the trolley. The area array light source curing device is arranged on the guiding rail of the trolley. The conveying device fixes a workpiece to be cured in a vacuumized mode and conveys the workpiece to be cured to the portion over the area array light source curing device or the portion under the area array light source curing device. The invention further discloses a curing method by utilizing the curing equipment. According to the parallel light curing equipment with the staggered area array light sources and the curing method, due to the fact that the staggered movements of the area array light sources and the workpiece are controlled, the evenness of curing is improved, and due to the fact that a condensing lens converts UV light beams into parallel light, the curing efficiency and precision are improved.

The invention discloses a method for reducing ammonia in mainstream smoke of cigarettes, which includes: packing tobacco/finished cigarettes with paper cartons with a stacking thickness of 26-72cm and a stacking density of 0.20-0.34g/cm<3>; placing the cigarette cartons on a conveying device at the conveying speed of 0.02-0.3m/s, and subjecting the cartons to electronic beam/X-ray irradiation generated by an electronic accelerator, wherein the electronic accelerator is 5-10MeV in energy, 0.3-20mA in beam current, 10-20kW in beam power, 100cm in largest scanning width, 5-15Hz in scanning frequency, 1-10kGy in irradiation dose and 5-35 DEG C in set operating temperature; allowing the cartons to pass a scanning widow of the electronic accelerator twice for irradiation, wherein the distance from the center of each carton to the scanning window of the electronic accelerator is 40-60cm in irradiation; and limiting the ambient humidity to be no larger than 60% in operation.

The invention relates to an X-ray source module pair linear assembly continuous inlet-outlet sample irradiating machine, in particular to a special continuous inlet-outlet sample irradiating device for irradiating bagged blood or Chinese patent medicine and bulk food (such as garlic). The device comprises a linear assembly, an irradiating chamber upper protection cover, an irradiating chamber lower protection cover, a circulating sample conveyor belt, a control table-board and an anode water-cooling circulating system, wherein the linear assembly consists of a plurality of pairs of upper X-ray source modules and lower X-ray source modules. The X-ray source module pair linear assembly continuous inlet-outlet sample irradiating machine has the advantages of high irradiating conversion efficiency, large irradiating angle, continuity for irradiating the sample which is automatically inputted and outputted, uniformity in irradiating dose and the like and is used for substituting the existing widely-used radioactive nuclear radiation source blood irradiating machine, so that the dependence of the irradiating device on the nuclear radiation source can be finally thoroughly avoided, and the potential danger for producing radioactive nuclear pollution to the environment can be eliminated.

The invention relates to an LED street lamp lens device which comprises a base and an elliptical column body protruding from the base, wherein, the end of the base without the elliptical column body is dented to form an elliptical hollow part, the elliptical hollow part forms a semi-cylinder-shaped space by inwardly denting towards the elliptical column body, the axial direction of the semi-cylinder-shaped space is vertical to the direction of long axis of the elliptical hollow part, and the elliptical column body comprises a ring-shaped side wall, convex sides that are respectively and smoothly abut against the ring-shaped side wall in a transition way, and concave sides arranged among the convex sides. By adopting the LED street lamp lens device provided by the invention, the round lighting of the whole LED point light source is transformed to be uniform strip giant-scale lighting, so that an LED street lamp can provide uniform lighting along the extending direction of the street, and no waste and pollution of light exists at the roadside and house side, thus the light can be reasonably distributed and the effective utilization rate of light can be improved.

The invention discloses a machine vision illumination light source, comprising a base plate, and a shell which is arranged in a manner of fitting with the base plate, wherein a driving component is arranged on the base plate; the driving component comprises a rotating part and a driving part; the rotating part comprises a knob; a bearing and a large bevel gear are sequentially arranged below the knob; the driving part comprises a small bevel gear; the small bevel gear is meshed with the large bevel gear; the small bevel gear is provided with a lead screw; the lead screw is provided with a sliding block; the sliding block is arranged in a manner of fitting with a sliding rail; the sliding block is connected with an LED (light emitting diode) module through a connecting rod; the LED module is positioned below the base plate. Meanwhile, the invention further discloses an operating method of the machine vision illumination light source. According to the machine vision illumination light source and the operating method of the machine vision illumination light source, an angle of the LED module can be adjusted through linkage by means of rotating the knob, and the consistence is kept; for different detection characteristics, the uniform illumination can be also realized under the condition of changing the direction of incident light, and the operation is convenient.

The invention discloses a method for reducing crotonaldehyde in mainstream smoke of cigarettes, which includes: packing tobacco/finished cigarettes with paper cartons with a stacking thickness of 26-72cm and a stacking density of 0.20-0.34g/cm<3>; placing the cigarette cartons on a conveying device at the conveying speed of 0.02-0.3m/s, and subjecting the cartons to electronic beam/X-ray irradiation generated by an electronic accelerator, wherein the electronic accelerator is 5-10MeV in energy, 0.3-20mA in beam current, 10-20kW in beam power, 100cm in largest scanning width, 5-15Hz in scanning frequency, 1-10kGy in irradiation dose and 5-35 DEG C in set operating temperature; allowing the cartons to pass a scanning widow of the electronic accelerator twice for irradiation, wherein the distance from the center of each carton to the scanning window of the electronic accelerator is 40-60cm in irradiation; and limiting the ambient humidity to be no larger than 60% in operation.

The invention relates to an LED eye-protecting table lamp lens which comprises a table lamp cover and a lens body buckled on the table lamp cover. An LED light emitting unit is arranged on the table lamp cover, the lens body is composed of a first transparent light guide body portion and a second transparent light guide body portion which are connected together, the inner surface, facing one side of the LED light emitting unit, of the first transparent light guide body portion is arc-shaped and provided with multiple ribs densely, a pair of opposite clamping grooves allowing a pair of lamp covers to be buckled is arranged at two lateral sides of the second transparent light guide body portion, and the outer side face of the second transparent light guide body portion is arc-shaped and atomized to be frosted. A conventional single-layer lens is designed to be of a similar-bilayer structure, and the inner surface is designed to be arc-shaped, so that refractive angle or transmission distance of light under different irradiating angles in the lens is changed. In addition, the ribs are arranged on the inner wall close to the LED light emitting unit, so that irradiating uniformity is further improved by applying a fresnel lens principle.

The invention provides an LED high-uniformity and high-efficiency optical system design method based on combination of a TIR and a micro lens array. The micro-lens array not only has the optical performance of a traditional lens, but also has many special optical performances, and is widely applied to LED light sources in recent years. However, most research pays attention to the manufacturing process, and a complete mathematical model for designing and establishing a free-form surface is lacked. Therefore, a set of complete free-form surface micro-lens mathematical model is established according to the TIR characteristics and the refraction law. And a group of differential equations are solved through numerical values to obtain the contour of the free-form surface micro lens. And finally,the micro-lens array is simulated by using ray tracing software Trace Pro under the conditions of a near field and a far field respectively, and the influence of the characteristics of the micro-lensarray on the illumination performance is discusssed. Results show that the smaller the radius of the micro lens is, the better the illumination effect is, the uniformity and efficiency of the micro lens can reach over 90%, and the prospect of the micro lens array in practical application can be effectively broadened.

The invention discloses a method for lowering imidacloprid and acetamiprid residue in tobacco, which comprises the following steps: packaging tobacco with a carton, wherein the accumulation thickness is 26-72cm, and the accumulation density is 0.20-0.34g/cm<3>; putting the tobacco cartons on a conveying device at a conveying speed being 0.02-0.3m/s; irradiating the tobacco cartons by an electronic beam or X ray generated by an electron accelerator, wherein the energy of the electron accelerator is 5-10MeV, the beam is 0.3-20mA, the beam power is 10-20kW, the maximum scanning width is 100cm, the scanning frequency is 5-15Hz, the radiation amount is 1-10kGy, and the working temperature is set to be 5-35DEG C; causing the tobacco cartons to pass through a scanning window of the electron accelerator to be irradiated, wherein the center of each tobacco carton is far away from the scanning window of the electron accelerator for 40-60cm during irradiation, and the environment humidity during working is limited to be less than or equal to 60%.

The invention provides a washing machine with sterilization drying function, wherein the washing machine is applied to the technical field of household appliances. A plurality of water-permeable air-permeable holes (4) arranged at intervals are formed in an inner cylinder (3) along the periphery of the inner cylinder (3); an outer cylinder (5) sleeves the outside of the inner cylinder (3); and theouter side surface of an inner cylinder plate member (6) is fixedly connected with a rotating shaft of a driving motor I (7). An ultraviolet lamp tube (8) is arranged at the inner side of a front washing machine cover (2); a driving motor II (10) is arranged on the front washing machine cover (2); a rotating shaft of the driving motor II (10) is connected with a telescopic cylinder II (11); and an opening claw (12) is arranged at the end of a telescopic rod II of the telescopic cylinder II (11). The washing machine has a simple structure. After clothes washing is completed, sterilization drying is realized conveniently and rapidly; the complete and clean sterilization drying is ensured, so that the cleanliness of the clothes is improved and the health of people is guaranteed.

The invention discloses a method for reducing the polyaromatic hydrocarbon content in tar of cigarette smoke. The method comprises the steps: packaging tobacco leaves/finished products of cigarettes with cartons, wherein stacking thickness is 26-72cm and stacking density is 0.20-0.34g/cm<3>; and placing the tobacco leaf/cigarette carton on a conveyer at the conveying speed being 0.02-0.3m/s and irradiating the tobacco leaf/cigarette cartons with electron beams/X rays produced by an electron accelerator, wherein the electron accelerator has the energy being 5-10MeV, the beam flow being 0.3-20mA, the beam power being 10-20kW, the maximal scanning width being 100cm, the scanning frequency being 5-15Hz and the irradiation dose being 1-10kGy, the working temperature is set to be 5-35 DEG C, the tobacco leaf/cigarette cartons pass trough a scanning window of the electron accelerator twice to be irradiated, a distance between the center of each tobacco leaf/cigarette carton and the scanning window of the electron accelerator is 40-60cm during irradiation, and the ambient humidity is limited to be not more than 60% during working.

The invention discloses a method for lowering carbon monoxide content in main smoke of cigarette. The method comprises the steps of: packaging tobacco leaves/cigarette finished product with cartons, wherein the stacking thickness is 26-72cm and the stacking density is 0.20-0.34g/cm<3>; and placing the cigarette cartons on a conveying device with conveying speed of 0.02-0.3m/s and irradiating withelectron beam/X ray generated by an electron accelerator, wherein the energy of the electron accelerator is 5-10MeV, the beam current is 0.3-20mA, the beam power is 10-20kW, the maximum scanning width is 100cm, the scanning frequency is 5-15Hz, the irradiation dose is 1-10kGy, the working temperature is set at 5-35 DEG C, the cigarette cartons pass through a scanning window of the electron accelerator twice to undergo irradiation, the distance between the center of the cigarette carton and the scanning window of the electron accelerator is 40-60cm during irradiation, and the ambient humidity is limited to be not more than 60% during working.

The invention provides a design method of a diffuse transmission free form curved surface based on a collimating lens array. A traditional diffusion sheet used for LED array illumination is not structurally designed, and only a simple plane or semispherical surface is adopted. Due to the fact that the diffusion sheet scatters light from all directions, the efficiency of a lighting system applyingthe diffusion sheet is lower than that of other designs. Based on the problems, according to the light-emitting characteristics of an LED, the collimating lens array is used for correcting wide-viewing-angle light emission of the LED array, and then a mathematical model of a diffuse transmission free-form curved surface is established according to a light path by applying a bidirectional transmission distribution function (BTDF) of a high-transmittance surface. Due to the complexity of the light path, a method of presetting a collimation plane is provided to simplify the calculation. The nonlinear algebraic equation is derived from the light reaching the preset collimation plane and the light leaving the preset collimation plane, the equations are numerically solved to obtain the profile of the diffuse transmission free form curved surface, and then the profile is imported into ray tracing software TracePro for simulation.

The invention discloses a method for designing an irradiation attenuator of a xenon lamp light source solar simulator, relates to the technical field of optical instrument design, and provides a method for designing an attenuator for realizing large-range adjustment of irradiance and irradiation uniformity of a solar simulator, which comprises the following steps of: determining the shape and themounting position of the attenuator; carrying out theoretical analysis on the attenuator by utilizing the optical expansion amount, and determining a light transmission area; and studying irradiationdistribution at the attenuator by adopting an annulus method, and specifically designing structural parameters such as the number, the size and the arrangement mode of holes of the attenuator to improve the irradiation uniformity. The irradiation attenuator of the xenon lamp light source solar simulator is convenient to install, large-range adjustment of irradiance is achieved under the conditionthat high stability and high uniformity of irradiation are guaranteed, and the xenon lamp light source solar simulator irradiation attenuator has important significance in improving the performance ofa solar simulator.

The invention discloses a multiple light source explosion-proof lamp. The lamp comprises an explosion-proof lamp shell, a reflector fixed in the lamp shell and a light source arranged in the reflector, wherein the reflector is composed of at least two single reflector which are distributed in parallel; and the inside of each single reflector is provided with an LED light source. The invention provides the multiple light source explosion-proof lamp with high luminous efficacy, energy-saving and good illumination uniformity and lighting effect.

The invention relates to a light treatment device for skin. The light treatment device for skin comprises a base, a mainframe, a mounting frame, a protective cover and an illumination mechanism. The mainframe is mounted at the upper end of the base, the mounting frame is mounted at the upper end of the mainframe and is of a structure telescopic up and down and left and right, the protective coveris mounted on the side wall of the mounting frame, the illumination mechanism is disposed in the protective cover and comprises a rotating motor, a rotating cylinder, a working frame, a lamp bracket,a connecting plate, an adjusting branch chain, an auxiliary branch chain, a telescopic cylinder, a telescopic connecting rod and an auxiliary frame. The adjusting branch chain comprises an adjusting plate, a connecting slider, an adjusting block, an adjusting rod, a moving plate, an adjusting gear, a transition gear and a driving motor. According to the light treatment device for skin, the problems that at present, in the light treatment process, the position adjustability of an LED lamp is poor, the irradiation uniformity is poor, and after the LED lamp works for a long time, the temperaturerises easily, so that normal operation is affected can be solved.

The invention discloses tea capable of replenishing blood, tranquilizing the mind and nourishing the heart and a production method of the tea. In all the process links, bioactive components of naturalplants are retained to the maximum extent, the utilization rate is high, no chemical residue is left in the product which is non-toxic and harmless, and the process is environmentally friendly and pollution-free; by using supercritical extraction or ultra-high pressure extraction technology, the tea has the advantages of short extraction time, low extraction temperature, high extraction rate, lowimpurity content of extract, high physiological activity of the effective component, low energy consumption, high equipment safety, simple operation, wide application range, green environmental protection and the like; by using the low temperature vacuum drying technology, functional active components of the natural plants are not destroyed, and the quality of product is good inside and outside;by using the irradiation sterilization technology which belongs to the novel cold sterilization technology at room temperature, opening the packaging of the product is not needed, and simpleness in operation, high irradiation efficiency, good irradiation uniformity, thorough sterilization, high adaptability and wide popularization are achieved.

The invention relates to a collimating mirror design method for improving the irradiation uniformity, which comprises the following steps of: determining the surface type parameters of the collimatingmirror according to the design requirements of a solar simulator; dividing the collimating mirror into a plurality of unit collimating mirrors, and determining the surface type parameters of each unit collimating mirror; fitting to obtain the spherical curvature radius of each unit collimating mirror corresponding to the corresponding ideal parabolic collimating mirror unit according to the surface type parameters of each unit collimating mirror; designing each unit collimating mirror as a spherical unit collimating mirror based on the spherical curvature radius obtained by fitting; and splicing all the obtained spherical unit collimating mirrors according to the position corresponding relation to obtain a final collimating mirror. According to the collimation mirror design method for improving irradiation uniformity, reducing the deviation of the collimating mirror obtained by final splicing and the ideal parabolic collimating mirror, improving the optical axis direction consistencyof the output light path of the solar simulator, and improving the irradiation uniformity of the system.

The invention discloses a device and method for guiding a fiber coating precursor coating through laser irradiation. The device comprises a fiber desizing device, a fiber bundle expanding device and a laser irradiation device; under a non-vacuum condition, after a fiber is subjected to laser irradiation, the fiber and a thermoplastic or thermosetting material can be heated and compounded, so that the comprehensive mechanical properties of a carbon fiber composite material can be enhanced, and annealing and curing can be quickly completed by introducing cooling inert protective gas.