255 results about "Absorption filter" patented technology

A fluorescence microscope comprises plural types of filter sets including a combination of a excitation filter, a dichroic mirror, and an absorption filter, a filter switch portion for switching the filter sets at a predetermined timing, an imaging portion for picking up an image of a specimen as an observation object by using the filter sets, a display portion having a plurality of image display areas on which the image picked up by the imaging portion are displayed respectively, and a control portion for generating a superposed image on which the images are superposed. In this fluorescence microscope, the imaging portion picks up the image via every filter set in synchronism with a timing which is set by the switching set portion and at which the filter switch portion switches the filter sets, and then the picked-up image is automatically updated and displayed in the image display areas.

A filter assembly for use in sidestream gas sampling assembly. The filter assembly of the present invention includes a hydrophilic The filter further includes a hydrophobic member positioned downstream of the hydrophilic liner. The hydrophobic disk acts as a second line of defense against moisture reaching the sensing mechanism member that is constructed from a porous material and is situated such that gas entering the filter assembly passes through at least a portion the hydrophilic member. In a further embodiment, the filter includes a hydrophobic member positioned downstream of the hydrophilic member. The hydrophobic member acts as a second line of defense against moisture reaching the sensing mechanism in the gas sampling assembly.

An infrared absorption filter which has absorption in the near-infrared region, manifests high light transmission in the visible region, and does not have large absorption of specific wavelength in the visible region, further, is excellent in environmental stability and durability and has little optical defect, the filter comprising an infrared absorption layer laminated at least on one surface of a transparent polymer film, wherein said transparent polymer film is a film comprising a polymer easy-adhesion layer laminated at least on one surface, said transparent polymer film contains substantially no particle, and said transparent polymer film contains foreign materials having a size of 20 mum or more in an amount of 10 / m2 or less per unit area of the film.

Electronic devices having digital reverberators are disclosed, together with a method of reproducing sound for a user with the digital reverberator. The digital reverberator uses digital surface absorption filters positioned in the reverberator to simulate absorption of energy as digital audio data samples are reflected from virtual surfaces. The position of the digital surface absorption filters enables known frequency-dependent surface absorption characteristics of real materials to be directly implemented using the filter coefficients of each digital surface absorption filter. This enables virtual acoustic spaces to be designed quickly without the need for the digital reverberator to be manually tuned for each space.

An evaporated fuel purge system has a fuel tank, an adsorption filter and a purge control valve. The evaporated fuel purge system is pressurized and depressurized through a venting flow path by a pump, so that the state of leakage therefrom is thereby inspected. For this inspection, a motor unit for driving the pump which applies or reduces pressure, an in-vehicle battery and a voltage control circuit which controls a battery voltage to a predetermined voltage and supplies the motor unit with a current are provided. The voltage control circuit is located in a pump chamber which forms a part of air outlet passage.

A selective absorption filtering structure comprises a substrate, a dielectric micro-nano unit located on the substrate and a metal layer located on the dielectric micro-nano unit. The metal layer totally covers the dielectric micro-nano unit, namely, the metal layer covers the ridge portion, the slot portion and the side wall of the dielectric micro-nano unit. The imaginary part of the dielectric constant of the metal layer needs to be larger than the absolute value of the real part of the dielectric constant. The filtering structure has relatively high absorption efficiency and is not sensitive to the angle and the polarization state of incident light. Meanwhile, manufacturing process is simple and easy to achieve. The structure can be applied to a solar cell to capture more energy and can provide a solution for achieving black in non-ink printing, and a traditional concept that black printing can be achieved only by means of pigments is changed.

A device for recovering anaesthetic. During the administration of inhaled anaesthetic, the device is connected to a patient. It includes an anaesthetic evaporator for supplying anaesthetic to the patient and an absorption filter for absorption and desorption of the medium. The device includes a body placed between the absorption filter and the patient with the gases breathed by the patient passing across the body and the anaesthetic evaporating on the surface thereof. The absorption filter is in the form of a flat element placed in the flow path of a gas breathed by the patient and contains fibers of active carbon. The absorption filter is movably arranged in a housing between a position in which substantially all the gases breathed pass through the filter and the position in which a small portion of the gases breathed passes therethrough.

An infrared absorption filter which has absorption in the near-infrared region, manifests high light transmission in the visible region, and does not have large absorption of specific wavelength in the visible region, further, is excellent in environmental stability and durability and has little optical defect, the filter comprising an infrared absorption layer laminated at least on one surface of a transparent polymer film, wherein said transparent polymer film is a film comprising a polymer easy adhesion layer laminated at least on one surface, said transparent polymer film contains substantially no particle, and said transparent polymer film contains foreign materials having a size of 20 mum or more in an amount of 10 / m2 or less per unit area of the film.

A method for re-use of the same water to do multiple loads of laundry over and over again. The method includes the step of collecting the used wash water from a washing maching. A lint / grit removal stop is followed by a second lint removing step. A free oil removal step is followed by a grease, hydrocarbon and suspended solid removal step undertaken by a media filter. A hydrocarbon absorption filter step is then followed by an activated carbon filter step. The used wash water is further purified by an ozone injection step. Still further, a heat exchange step is provided before the step of re-introducing the used wash water back to a washing machine facility from whence it came.

Disclosed is a hybrid Infrared Ray (IR) cut-off filter for a digital camera, which includes an absorption filter plate for absorbing infrared rays, a reflection coating layer formed on a top or bottom side of the absorption filter plate so as to reflect infrared rays, and an anti-reflection coating layer formed on the top or bottom side of the absorption filter plate opposite the reflection coating layer, so as to allow visible rays to pass through the anti-reflection coating layer. The hybrid IR cut-off filter can provide an excellent IR cut-off function even in a slim digital camera module. Also, the hybrid IR cut-off filter can prevent the image quality from being degraded due to the IR transmittance difference according to the change in the incidence angle of an incident light, thereby overcoming the problem of color difference according to the color temperature.

A recycling system for laundry wash water having a collection tank for collecting used wash water. A holding tank connected to the collection tank has heat exchange piping in the interior of the holding tank. A lint / grit separator is connected to the holding tank. A lint filter acting as a second stage in lint removal is connected to the holding tank. An oil separator for removing free oil is connected to the lint filter. A media filter having a medium of fine rock is connected to the oil separator. A hydrocarbon absorption filter is connected to the media filter. An activated carbon filter is connected to the hydrocarbon absorption filter. A final holding tank is connected to an ozone generator so that clean and processed water leaves the final holding tank. Clean and processed water leaving the final holding tank is channelled to the heat exchange piping in the holding tank which uses the used wash water from the collection tank to heat the clean and processed water before the clean and processed water goes on to a hot water server connected to a wash machine facility.

The invention discloses a rotational flow absorption filter concentration and separation technique and a device thereof, which belong to the technical field of solid-liquid separation. A solid-contained liquid with low concentration enters a separator tangentially; the kinetic energy of the entered water leads the solid-contained liquid in the separator to rotate around the center and scour the surface of an absorption filter separation tube arranged in the separator so as to lead the surface to be not easy to form an over-thick filter cake layer; the clear liquid in the solid-contained liquid is drained out by a Millipore super absorbent material coated by the absorption filter separation tube; the flowing directions of the solid-contained liquid and the separation liquid are crossed to form cross-flow separation; and then the solid-contained liquid can be concentrated and the substrate sludge with high concentration deposited at the tapered bottom of the separator is discharged by a sludge valve. The use of the technique and the device leads to better filter effect of the clear liquid. The solid-content of the discharged sludge is improved by 1 to 3 times than that of the sludge of a traditional concentrated tank; and the treatment amount can achieve 100-300m / m.d. The device simultaneously replaces a sedimentation tank, the concentrated tank and a filter, leads the separation process to be in a closed state, can have no electromechanical power during the separation process, can greatly reduce the dosage of flocculating agent (coagulating agent) and can even reduce the dosage of flocculating agent (coagulating agent) to zero.

In order to reduce light leak influencing the detection capability of a fluorescence imaging apparatus, an interference filter and an absorption filter on an emission-side filter section are arranged serially in the traveling direction of the fluorescence. The interference filter and the absorption filter that are in use for such an arrangement block the waveband light equivalent to the excitation light irradiated onto a sample while fully transmitting the waveband light equivalent to the fluorescence.

A strong acid pretreatment assisted cellulose nano-filament preparation method includes: performing hydrolysis pretreatment for bleached paper pulp fibers for 1.0-1.5 hours at the temperature of 40-60 DEG C by the aid of 60-70wt% of concentrated sulfuric acid or hydrochloric acid, swelling up, dissolving and opening partial cellulose amorphous regions, and performing high-speed homogenizing mechanical shearing so that cellulose nano-filaments are obtained rapidly. The cellulose nano-filaments obtained by the method are low in energy consumption during production, high in fiber crystallization degree, large in filament length-diameter ratio and good in heat stability, and can be widely applied to the fields of reinforced composites, dust absorption filtering materials, ecological environment-friendly materials, biomedical materials and the like.

The fluorescence microscope comprises: a fixed-type objective lens placed between a filter set and a specimen loading portion; a partition that covers at least the specimen loading portion, the objective lens and the filter set to block extraneous light incident on the specimen loading portion; an imaging lens arranged on the outgoing surface of the absorption filter of the filter set, the imaging lens including a zoom lens capable of continuously changing the operation distance; and an imaging portion forms a fluorescent image from a fluorescence emitted from the specimen and received by the imaging lens via the absorption filter by irradiating an excitation light onto the specimen from the excitation light source via the excitation filter of the filter set and. This configuration avoids damage to the specimen or lens surface while allowing high-contrast fluorescence observation with reduced effect of extraneous light.

The invention relates to a preparation method of a cigarette absorption type flavor compensation material, which belongs to the technical field of cigarette auxiliary materials, in particular to an absorption filter material added in cigarette filters and the preparation method for realizing the functions of flavor enhancement and moisture retention of the material. The preparation method comprises the following steps: a) selecting materials: selecting cellulose acetate with water content of above 4%; b) mixing a dissolving agent with a moisture retention agent according to the proportion, adding onto the cellulose acetate, uniformly stirring, hermetically storing for 1-12h under normal temperature and normal pressure, and obtaining cellulose acetate solution; c) adding an appropriate amount of porous absorption filler and surface material into the cellulose acetate solution prepared in b), uniformly mixing, preparing a soft material which can be gripped into a group and be scattered by light touch, and hermetically preserving for 1-12h; and d) preparing the soft material prepared in the step c) into pellets of 20-60 meshes, quickly drying and obtaining an absorption type base material. The cigarette absorption type flavor compensation material prepared by the preparation method of the cigarette absorption type flavor compensation material can directly transfer characteristic flavor, moisture and pharmacological active ingredients of plant material into smoke.

A composite adsorptive filter material containing porous aerogel is prepared through proportionally mixing ethyl n-silicate, alcohol, water and HF, stirring, laying aside to obtain wet SiO2 gel, immersing the wet SiO2 gel and fibers or fabric in the solution mixture of trimethyl chlorosilane and n-hexane for modifying, and heat treating at 100-200 deg.C.

The invention discloses an attapulgite ceramic mud with an air purifying function. The technical scheme is characterized in that the attapulgite ceramic mud with the air purifying function consists of pasty attapulgite clay, an attapulgite constant humidity conditioner, a natural ore absorption filtering agent, biota tops, alumina silicate fiber, polyacrylamide and water. The preparation method comprises the following steps: mixing ingredients and stirring them; then feeding the mixture to a ball mill, and carrying out wet ball milling; carrying out staleness processing on the slurry subjected to ball milling so as to form a semi-product; and extruding the semi-product into a blocky substance and packaging the semi-product to form a finished product which has the advantages of better adhesion, plasticity, fire resistance and thermal stability. A pottery prepared by using the attapulgite ceramic mud with the air purifying function contains a large amount of micropores and activated carbon, has the characteristics of small contractibility rate, no crack, no deformation and good absorption property, and can effectively absorb harmful substances, such as formaldehyde, ammonia, benzene and the like, in air, be environmental-friendly and promote human health. The attapulgite ceramic mud is suitable for producing the ceramic artware with the air purifying function.

The invention relates to a fully closed circuit-pendulum-storage system wherein a given amount of a ready to breathe gas mixture made of various inert gases including hydrogen and oxygen is continuously conveyed between two highly pressurized gas containers. Initially, the required breathing gas leaves the pressurized gas container and reaches the circuit at a constant dosage according to the overdosing principle. The circuit consists of an inhalation bag, a diving helmet, an exhalation bag and a single or double pack CO2 absorption filter. At a depth of 0-100 m a mixture of oxygen, nitrogen and helium is used as a breathing gas. At a depth of 100-700 m a given amount of hydrogen is mixed therewith according to the wishes of the diver, whereby the oxygen content should not exceed 3 vol. %. When the diver emerges from a depth of over 100 m, the hydrogen is removed from the breathing gas and from the circuit by means of palladium membrane diffusion or catalytic water conversion. The removal of hydrogen is controlled by hydrogen detectors. At this point only, the oxygen content can exceed 3 vol %.

A fluorescence observing apparatus has an excitation filter unit for transmitting only exciting light with particular wavelengths, of illuminating light, and an absorption filter unit for transmitting only fluorescent light produced from a specimen by irradiating the specimen with the exciting light to block the exciting light. In this case, the space between the half-value wavelength on the long-wavelength side of the excitation filter unit and the half-value wavelength on the short-wavelength side of the absorption filter unit is in the range of 6–12 nm, and variations in the half-value wavelengths of the excitation filter unit and the absorption filter unit where humidity is changed from 10% to 95% are within 0.5 nm. Whereby, faint fluorescent light is efficiently taken out and the observation can be made.

An apparatus for fluorescence observation includes an excitation filter which transmits only exciting light of an specific wavelength among illumination light, and an absorption filter which blocks the exciting light and transmits only fluorescence generated from a specimen when the exciting light is irradiated to the specimen. Here, an interval of a half-value wavelength at a long-wavelength side of the excitation filter and a half-value wavelength at a short-wavelength side of the absorption filter is in a width between 1 nm to 6 nm, and change of the half-value wavelength of the excitation filter and the absorption filter when humidity changes from 10% to 95%, is 0.5 nm or less.

The related renewable energy feedback interconnected circuit comprises: the input dc, a power unit with an absorption filter and level circuit in turns all paralleled between positive and negative bus-bar, an equalizing inductance, and the output ac. This invention can improve running efficiency, reduces cost, and has high power factor fit to wide application.

The invention discloses an eco-brick manufacturing system and an eco-brick manufacturing method, belongs to the technical field of building materials manufacture. The invention aims at solving a problem that the production cost of the eco-brick is high. The eco-brick manufacturing system provided by the invention is mainly characterized by comprising: a rack arranged on a mobile vehicle; a crushing device arranged on the rack and configured to pulverize construction waste; a screening device arranged at a discharging port of the crushing device; a magnetic absorption filter member arranged onthe rack and close to the discharging port of the screening device; a batching device arranged at a discharging end of the magnetic absorption filter member; and a forming device arranged at a discharging end of the batching device and configured to extrude the brick-manufacturing raw materials prepared in the batching device into the eco-brick. Therefore, the purposes of recycling the construction waste and reducing the production cost of the eco-brick can be achieved.

The invention provides a composite curtain wall for efficiently intercepting pollutants in a farmland surface source. The composite curtain wall is characterized in that a surface plant buffer zone, a plant protection slope, a water collection zone and an anti-pollution curtain wall are arranged in sequence along the direction from a farmland drain outlet to a field drain ditch; the water collection zone is lower than the surface plant buffer zone and the anti-pollution curtain wall in height; the anti-pollution curtain wall is formed by gravel, filled soil or the combination of the gravel and the filled soil, and the shape of the cross section of the anti-pollution curtain wall is trapezoid. According to the composite curtain wall provided by the invention, the pollutants discharged by the farmland can be intercepted and purified through plant absorption and physical absorption filter, the nitrogen and phosphorus pollutants in the farmland surface source can be effectively prevented from entering water body such as a river, and the composite curtain wall has good ecological benefit and the popularization and application value.

Photo-catalytic multifunctional air clean fan comprises by turns initial filter net, first class blade, strong absorption filter layer, humidification layer, catalytic cleaning layer contented light source, active carbon resistant layer, second blade, resistance wire heating layer and shutter-type wind guiding layer. The motor connects and drives with first and second blades, wherein, the former generates positive pressure to push air forward and penetrate all clean layers and the latter is just opposite; besides, the photo-accelerating agent layer uses glass fiber carried accelerating agent to coat the ring light source structure, add cold-air leading cover on front of air inlet. It makes good use of source beam, cleans air flow, kills virus and bacteria in air, fits to north and south and four seasons; the structure is simple and easy to realize.

The invention discloses a micro-strip line absorption band-pass filter. The micro-strip line absorption band-pass filter is used for solving the problems that an existing LC absorption filter is not prone to being integrated with an active device and poor in compatibility. The micro-strip line absorption band-pass filter comprises two identical parallel coupled line directional couplers, two identical micro-strip pectinate line band-pass filters and a matched load. The micro-strip line absorption band-pass filter has the advantages of being compact in structure, high in working frequency band, wide in bandwidth, low in cost, prone to being integrated with the active device, good in compatibility and simple to design.

The invention relates to an air conditioner purification sterilizer, which includes a main unit and a cabinet unit of a spilt cabinet air conditioner. In the cabinet unit are mounted a condenser and a fan. In the upper part of the cabinet unit casing there is an air outlet window and in the lower part there is an air inlet window. In the front of the cabinet unit there is a control panel. The fan is corresponding with the air inlet window. Between the above of the fan and the air outlet window are disposed an electrostatic dust collector and an absorption filter one by one.

An optical unit includes: a plurality of lenses that form an object image on an image plane that is a light-receiving surface of a CCD; an aperture diaphragm; and an infrared absorption filter disposed on the image plane side relative to the aperture diaphragm, the infrared absorption filter including coating surfaces resulting from a YAG laser cut-off film and an LD laser cut-off film that each cut off predetermined laser light being formed respectively, and an F number FNO, a maximum image height IH, and a distance Δd between a paraxial image formation position in a ghost optical path on which a light beam emitted from the aperture diaphragm BI is reflected by the image plane and further reflected by the coating surface and reaches the image plane again and the image plane satisfy (Expression 1):0.75<|FNO·IH / Δd|<2.0   (Expression 1).

The invention discloses a method for removing the toxicity of tail water of fine chemical biochemical treatment, belonging to the field of sewage treatment methods. The method comprises the following treatment steps: (a) carrying out catalytic ozonation, specifically, treating sewage in a catalytic ozonation tower which is internally filled with an iron-aluminum catalyst, wherein the iron-aluminum catalyst is prepared from the following effective components: beta-iron oxyhydroxide and aluminum oxide; (b) absorbing, specifically, carrying out further treatment on wastewater, subjected to treatment in the step (a), by using an absorption filter filled with ceramsites and magnetic resin, wherein the mass ratio of the beta-iron oxyhydroxide to the aluminum oxide in the iron-aluminum catalyst is equal to (15-20) to (80-85), and the volume ratio of the ceramsites to the magnetic resin is equal to (2-3) to (3-5). The method provided by the invention is simple to operate and low in cost, and not only can realize the non-toxic emission of the tail water, but also can improve the comprehensive index of water quality.

Apparatus for treating run-off water, the apparatus including a mechanical-sorption filter for removing particulate and colloidal material; an ion exchange filter for removing positively charged ions; and, a sorption filter for removing at least other soluble contaminants.