baber/WOPTO huggingface dataset:
Patent PT-103279-A (PT)
Title: Processo de remoção de corantes em soluções aquosas por adsorção a dreche cervejeira e sua utilização no tratamento de efluentes aquosos de corantes industriais
Inventor: DIAS SUZANA FERREIRA
IPC: B01D15/00
Filed: 2005-05-18
Abstract: O PRESENTE INVENTO DIZ RESPEITO A UM PROCESSO DE REMOÇÃO DE CORANTES EM SOLUÇÃO AQUOSA POR ADSORÇÃO A DRECHE CERVEJEIRA E SUA UTILIZAÇÃO NO TRATAMENTO DE EFLUENTES AQUOSOS DE CORANTES INDUSTRIAIS. A REACÇÃO DE ADSORÇÃO DECORRE EM REACTORES DESCONTINUOS COM AGITAÇÃO. O MEIO REACCIONAL É CONSTITUÍDO POR SOLUÇÕES AQUOSAS DE UM CORANTE ÁCIDO MONOAZO (ACID ORANGE 7-AO7) MUITO UTILIZADO NA INDÚSTRIA TÊXTIL, AO QUAL SE ADICIONA A DRECHE CERVEJEIRA OBTIDA APÓS A OPERAÇÃO DE BRASSAGEM , DA PRODUÇÃO DE CERVEJA. AS CONDIÇÕES DE ADSORÇÃO (TRATAMENTO PRÉVIO DA DRECHE: SECAGEM OU HIDRÓLISE ÁCIDA SEGUIDA DE SECAGEM; TEMPO DE HIDRÓLISE ÁCIDA DA DRECHE; QUANTIDADE DE DRECHE UTILIZADA; TEMPO DE ADSORÇÃO; PH DA SOLUÇÃO AQUOSA DO CORANTE; CONCENTRAÇÃO DO CORANTE) FORAM OPTIMIZADAS, SEGUNDO A METODOLOGIA DAS SUPERFÍCIES DE RESPOSTA. POR FIM, OS RESULTADOS OBTIDOS FORAM UTILIZADOS NA IMPLEMENTAÇÃO DO PROCESSO EM REACTOR DESCONTÍNUO COM REUTILIZAÇÃO SUCESSIVA DA DRECHE.
Patent PT-104635-A (PT)
Title: Dispositivo electrocrómico e método para a sua produção
Inventor: FERREIRA ISABEL MARIA MERCES
IPC: G02F1/1524
Filed: 2009-06-16
Abstract: AA PRESENTE INVENÇÃO REFERE-SE A DISPOSITIVOS ELECTROCRÓMICOS E MÉTODOS DE FUNCIONALIZAÇÃO DE MATERIAIS DE BASE CELULÓSICA, NA FASE DE PRODUÇÃO E NA FASE DE PÓS-PRODUÇÃO, PARA OBTENÇÃO DE DISPOSITIVOS ELECTROCRÓMICOS EM ESTADO SÓLIDO. A INVENÇÃO ENQUADRA-SE NO CAMPO DA ELECTROQUÍMICA. ESTES MATERIAIS DE BASE CELULÓSICA FUNCIONALIZADOS POSSUEM CARACTERÍSTICAS ELECTROCRÓMICAS TÍPICAS, ESPECIFICAMENTE A CAPACIDADE DE ALTERAÇÃO DO SEU ESTADO DE OXIDAÇÃO, LEVANDO A UMA ALTERAÇÃO DAS SUAS PROPRIEDADES FÍSICAS, EVIDENCIADA POR UMA MUDANÇA DE COR QUANDO SUBMETIDOS A UMA DIFERENÇA DE POTENCIAL ELÉCTRICO, ESTA ALTERAÇÃO DE COR SENDO REVERSÍVEL. A COR MANTÉM-SE NA AUSÊNCIA DE QUALQUER ESTÍMULO ELÉCTRICO, EVIDENCIANDO UM EFEITO DE MEMÓRIA. UM EXEMPLO DE UM DISPOSITIVO ELECTROCRÓMICO DA PRESENTE INVENÇÃO É CONSTITUÍDO POR UM MATERIAL DE BASE CELULÓSICA, O QUAL É EMBEBIDO NUMA DISPERSÃO DE NANOPARTÍCULAS DE UM MATERIAL INORGÂNICO ELECTROCRÓMICO OU NUMA SOLUÇÃO DE MOLÉCULAS ORGÂNICAS ELECTROCRÓMICAS, EM QUE A SOLUÇÃO/DISPERSÃO CONTÉM PELO MENOS UM SAL, E É COMPLETADO PELA DEPOSIÇÃO DE UM ELÉCTRODO EM CADA FACE DO MATERIAL DE BASE CELULÓSICA, EM QUE PELO MENOS UM DOS ELÉCTRODOS É TRANSPARENTE.
Patent PT-116080-A (PT)
Title: Biossensor eletroquímico autónomo e processo para a sua produção
Inventor: NÁDIA SILVA FERREIRA
IPC: G01N27/00
Filed: 2020-01-29
Abstract: A PRESENTE INVENÇÃO ESTÁ RELACIONADA COM A SÍNTESE E USOS DE BIOSSENSORES ELETROQUÍMICOS QUE INTEGRAM CÉLULAS DE COMBUSTÍVEL PASSIVAS COMO FORMA DE PRODUZIR DISPOSITIVOS ELETROQUÍMICOS BIOSSENSORES AUTÓNOMOS. O CONJUNTO BIOSSENSOR/CÉLULA DE COMBUSTÍVEL TEM COMO OBJETIVO A DETEÇÃO DE MOLÉCULAS ALVO VARIADAS, COMO POR EXEMPLO MARCADORES MOLECULARES ASSOCIADOS A DOENÇAS, COMO O CANCRO, ENTRE OUTROS. O ELEMENTO DE IDENTIFICAÇÃO DE BIOMARCADORES USADO É UMA CAMADA POLIMÉRICA COM IMPRESSÃO DA MOLÉCULA ALVO OBTIDA A PARTIR DA IMPRESSÃO MOLECULAR. ESTA CAMADA TEM A CAPACIDADE DE ATUAR COMO UM MATERIAL BIOMIMÉTICO, EVITANDO O USO DE ELEMENTOS DE IDENTIFICAÇÃO DE BIOMARCADORES BIOLÓGICOS QUE SÃO MENOS ESTÁVEIS E DE CURTA VIDA ÚTIL. O ELEMENTO DE IDENTIFICAÇÃO DE BIOMARCADORES ENCONTRA-SE INTEGRADO NUMA CÉLULA DE COMBUSTÍVEL PASSIVA QUE CONFERE AUTONOMIA ELÉTRICA AO DISPOSITIVO. PARA ALÉM DISSO, PODE TER ACOPLADO UM MATERIAL INTELIGENTE QUE EMITE UM SINAL CORADO DE ACORDO COM O SINAL OBTIDO NO SISTEMA BIOSSENSOR/CÉLULA DE COMBUSTÍVEL.
Patent PT-117046-A (PT)
Title: Unidade de corte de tranças e método de corte de tranças
Inventor: NOBUTO TSUKIJI
IPC: H01R43/28
Filed: 2021-02-04
Abstract: UMA UNIDADE DE CORTE DE TRANÇAS INCLUI: UMA PORÇÃO DE RETENÇÃO DE FIOS QUE RETÉM UM FIO BLINDADO (W) INCLUINDO UM MATERIAL DE FIO, UMA TRANÇA (103) COBRINDO O MATERIAL DE FIO, UMA BAINHA (104) COBRINDO A TRANÇA (103), A BAINHA (104) SENDO PARCIALMENTE REMOVIDA NUMA PARTE DA EXTREMIDADE FRONTAL DO FIO BLINDADO (W) EXPONDO A TRANÇA (103); UMA PORÇÃO DE AR DE EXPANSÃO DE TRANÇAS (103)SOPRA AR DA EXTREMIDADE FRONTAL DO FIO BLINDADO (W) AO LONGO DA DIREÇÃO DE EXTENSÃO DO FIO BLINDADO (W) EXPANDINDO A TRANÇA (103); UM PUNÇÃO ANULAR (50) INCLUINDO UM ORIFÍCIO ONDE O FIO BLINDADO (W) É INSERIDO; E UMA MATRIZ (47A) INCLUINDO UM ORIFÍCIO DE PASSAGEM (47A1) ONDE PUNÇÃO (50) ENTRA. O PUNÇÃO (50) ONDE O FIO BLINDADO (W) FOI INSERIDO ENTRA NO ORIFÍCIO DE PASSAGEM (47A1) ENQUANTO COLOCA A TRANÇA (103) EXPANDIDA ENTRE O PUNÇÃO (50) E A MATRIZ (47A1).
Patent RU-94014283-A (RU)
Inventor: MOROZ N G
IPC: B62K19/22
Filed: 1994-04-19
Abstract: FIELD: mechanical engineering; racing bicycle frames. SUBSTANCE: offered connection of polymeric or composite material tubes with metal parts has cylindrical metal cup, into which end of tube to be connected is fitted, and expanding device with clamping screw to press tube to inner surface of cup. Inner surface of cup is formed by two conical expanding portions intersecting in middle. One of expanding portions, pointed to cup bottom, has angle of inclination relative to cup axis within 0.5 and 5.0 and the other, pointed outside the cup, has angle of inclination relative to cup axis within 0.1 and 60. Expanding device is made in form of conical metal cup with circular projection on edges. Placed between outer walls of conical cup and inner walls of tube is sealing ring made of elasto-plastic material. EFFECT: increased service life of connection, prevention of relative displacement of parts of machines or structure members. 1 cl, 1 dwg
Patent RU-94030527-A (RU)
Inventor: PANARIN JU A
IPC: B01D47/04
Filed: 1994-08-23
Abstract: FIELD: power engineering, metallurgy, chemical industry and other industries. SUBSTANCE: checker is made in the form of parallelepiped with axial bladed swirler secured in its lower portion; swirler has four blades made in the form of obtuse-angled triangles whose obtuse angles are inscribed into dihedral angles of parallelepiped; centers of base are in contact at one point lying in axis of parallelepiped which walls are provided with ports directly above blades; provided above these ports are emulsifying initiators which consist of four plates made in the form of right-angle triangles which are also inscribed into dihedral angles of parallelepiped; they reduce its passage area by 10 to 25%. EFFECT: simplified construction; reduced cost of manufacture; reduced overall dimensions; increased capacity of single pipe - checker; enhanced efficiency of dust collection; enhanced reliability of gas cleaner sprinkling system.
Patent RU-94032452-A (RU)
Inventor: ABAZOV A K
IPC: G08B13/00
Filed: 1994-09-06
Abstract: FIELD: search of movable objects, for example, of stolen vehicles, using direction finder. SUBSTANCE: method involves mounting transmitting device with unique address digital code at a movable object, turning on the transmitting device at movable object and sending calling signals from it using two channels. Transmitting device is turned on by either address digital code that is sent through radio channels or by special security device which is located on movable object. Transmitter uses first low-frequency channel in bandwidth 0.1-0.6 MHz and second high-frequency channel in bandwidth 142-172 MHz. Object is located using frequency of first channel until exact place for it is found on map. When signals at first channel disappear, further search of object is performed in more narrow area using frequency of second channel. This is achieved using either main direction finder or additional portable finder which uses frequency of second channel. EFFECT: increased functional capabilities.
Patent RU-94032655-A (RU)
Inventor: SKOKOV V I
IPC: E21B29/02
Filed: 1994-09-07
Abstract: FIELD: oil and gas producing industry, particular, shooting-blasting devices applicable in pipe parting in wells. SUBSTANCE: well pipe cutter has cylindrical body 6 with side covers 5. Body accommodates explosive charge 1 with circular cumulative depression coated with facing 4 and initiators 2 and 3. Cover 5 has protrusion in form of truncated cone with its small base adjoining the cover. Thickness of cone equals thickness δof cover on the section from its edge to points of contact with cone. Length hof this section ranges from δto 2δ. Cone thickness δon the section with length hequals 1/6 of body internal diameter from point of cone contact with cover in direction to its center, and taper angle is selected from the relation given in the invention description. EFFECT: higher efficiency. 2 cl, 8 dwg
Patent RU-94032951-A (RU)
Inventor: KRISANOV A F
IPC: B21H9/02
Filed: 1994-09-07
Abstract: FIELD: mechanical engineering. SUBSTANCE: device has bed, mechanism for feeding a blank from a heating device to the axis of rolling, receiving- locking device, device for pushing a blank, and device for limiting the length of the rolling. EFFECT: expanded functional capabilities. 2 cl, 2 dwg
Patent RU-94033081-A (RU)
Inventor: CHESNOKOV V A
IPC: E21B28/00
Filed: 1994-09-09
Abstract: FIELD: oil production industry. SUBSTANCE: device ensures multiple depressions brought onto oil reservoir by single round-trip operation of device with carrying it to bottom-hole of horizontal bore-hole at high operational reliability. Piston of device is made up of set of identical sections interconnected by pipe. Non-return valve of device is controllable. Device is provided with pusher made in the form of tube column of material with density equal to density of bore-hole fluid, and weight. Sections are provided with pockets. Each of section operates as separate piston which creates simultaneous depression by several pistons. Mechanical particles carried out from oil reservoir are caught by pockets at lifting of device. Pusher with weight allows this device to be used in heavily inclined and horizontal bore-holes. EFFECT: high efficiency. 2 dwg
Patent RU-94035256-A (RU)
Inventor: MAJKL DZHON REHDLI MLADSHIJ
IPC: A61B8/08
Filed: 1993-02-24
Abstract: FIELD: medical equipment. SUBSTANCE: device has piezoelectric vibrator generating ultrasonic energy, which is transmitted through exit part 4 to plastic head 6. Shape of head 6 may change to suit any part of body at which the head is used. Material and shape of head 6 are chosen from the condition, which allows to monitor frequency and amplitude of ultrasonic energy precisely. Preferable frequency is chosen in 20-120 kHz. EFFECT: improved efficiency of treatment. 2 dwg
Patent RU-94036175-A (RU)
Inventor: ZENGER V G
IPC: A61N5/06
Filed: 1994-09-27
Abstract: FIELD: medicine. SUBSTANCE: method involves application of laser radiation (wavelength 2.09 mcm) for coagulation of tissues. A quartz-polymer light conduit lets this radiation pass virtually without any loss, and any inner or outer mucous membrane area is made accessible by leading the light conduit through a fibroscope working channel. The method involves two stages. One stage is local coagulation of tissues, and the other stage is destruction of the local blood vessels. EFFECT: simpler method; higher reliability.
Patent RU-94036228-A (RU)
Inventor: SHALAEV L F
IPC: B29C51/06
Filed: 1994-09-28
Abstract: FIELD: production of hollow pieces out of thin sheets of thermoplast, for example, production of protective packing containers made of sheets of polyvinyl chloride, etc. SUBSTANCE: method provides, that upper plate of joint is heated up to given temperature, then sheet is gripped between plate and matrix. Sheet is pressed to plate of heating by air. After contact heating of place its negative pneumatic formation is exercised by compressed air fed through holes in upper plate. Then after cooling formed piece is taken out. EFFECT: improved process.
Patent RU-94041630-A (RU)
Inventor: FEDINA R G
IPC: G01N33/555
Filed: 1994-11-18
Abstract: FIELD: medicine. SUBSTANCE: method involves determining hydrocortisone, somatotropin, aldosterone concentration. Combination of high level of hydrocortisone (667.50 ± 10.5 nM/l) with high somatotropin concentration (5.67 + 1.10 ng/ml) and aldosterone (142.61 + 10.64 pg/ml) as well as low or medium hydrocortisone level combined with low or medium level of aldosterone point out on normal state of the hypophyseal adrenal system of organism. Other states of hydrocortisone, somatotropin, aldosterone concentrations indicate the presence of deviations in the hypophyseal adrenal system of organism from the normal state. EFFECT: enhanced accuracy in determining functional state of hypophyseal adrenal system of organism.
Patent RU-94042479-A (RU)
Inventor: BIMBEREKOV P A
IPC: B63B81/00
Filed: 1994-11-28
Abstract: FIELD: repair and restoration of damaged structural members, ship's floors in particular. SUBSTANCE: sections of panel are cut in floor under repair leaving connected strakes of skin Deformed members (together with connected strakes) are repaired by known methods, if necessary and their connected strakes are bent to plane of required position of skin of floor. Size of connected strake which is left on either side is selected depending on amount of sagging of skin at distance from this member where connected strake will be welded to new panel later on. This size is determined approximately as sum of distances from member to area of subsequent connection of section of strake to new skin and amount of sagging of skin at the same area. Bent connected strakes are straightened (are cut, for example) to surface of intersecting with new panel. For better faying of new panel to floor under repair sections of connected strakes and skin adjoining the contour of panel to be applied are cut out (if panel falls on uncut section of deformed floor). Then new panel is laid which is rigidly secured over contour and edges of connected strakes of members. EFFECT: enhanced reliability.
Patent RU-94042673-A (RU)
Inventor: TOKMAKOV A A
IPC: B62K3/02
Filed: 1994-11-30
Abstract: FIELD: mechanical engineering. SUBSTANCE: pipe made of alloyed metal, alloy or carbon plastic or Plexiglass comprises hollow tubular member provided with strengthening member that is perpendicular to its longitudinal axis and made in block with the member. The strengthening member is made up as ribs inclined to each other. The ribs are interconnected along the longitudinal axis of symmetry of the hollow tubular member. EFFECT: simplified design.
Patent RU-95100103-A (RU)
Inventor: PLAKSIN V B
IPC: A63F5/02
Filed: 1995-01-05
Abstract: FIELD: entertainment. SUBSTANCE: invention relates to playing machines of roulette type. Roulette includes cup-shaped base, disc with sockets to catch play balls and handle for rotation. Recesses with remotely controlled mechanisms to bring play balls into play field are positioned in sides of cup-shaped base. Mechanism to bring balls into play is manufactured in the form of springs acting on balls located in recesses and held there by fixed remotely controlled gates overlapping recesses which are mounted for opening and release of balls on to play field and subsequent closing. EFFECT: expanded functional capabilities of roulette, capability to bring into play several balls simultaneously and minimization of influence of subjective factors on play. 2 cl, 1 dwg
Patent RU-95101189-A (RU)
Inventor: KUZ MIN A L
IPC: C21C5/46
Filed: 1995-01-25
Abstract: FIELD: ferrous metallurgy. SUBSTANCE: tuyere tip has top plate, divider, blast nozzles, bottom copper plate, steel adapter ring, hook-shaped suspensions, intermediate members for connecting plate with divider to obtain rigid unit. Suspensions are rigidly attached to ring. Common seating surface made on cantilevered projections of suspensions is adjoining to mating supporting surface of divider. Nozzle walls are provided with annular rings defining corrugations, which reduce axial rigidity of nozzles. EFFECT: increased efficiency in oxygen blasting of melt in converter, increased rigidity and enhanced reliability in operation of tuyeres. 2 dwg
Patent RU-95102287-A (RU)
Inventor: MISHCHENKO V A
IPC: A62C13/22
Filed: 1995-02-20
Abstract: FIELD: fire-fighting equipment, fire extinguishing by supply of fire-extinguishing liquid. SUBSTANCE: portable wetting agent fire extinguisher has body containing fire-extinguishing liquid with outlet and shutoff-and-starting device interacting with gas generator and engaging the starting unit on the basis of initiating member with insert of gas generating compound and decomposition chamber with gas generating charge, safety valve and outlet holes. EFFECT: improved convenience and safety in servicing and storage and its higher efficiency and reliability. 1 cl, 2 dwg
Patent RU-95103125-A (RU)
Inventor: GULEV V S
IPC: H01S3/08
Filed: 1995-03-06
Abstract: FIELD: quantum electronics, in particular, lasers for science, industry and medicine. SUBSTANCE: device has active element, pumping source, pipe circuit with cooling agent, reflecting units, mirrors and prism. Active element has two parts, which are located in parallel and pumping source is located between them. Laser resonator is shaped by adjacent dense and output mirrors and reflecting inner prism which has odd number of reflections and which base is directed inside resonator. This results in possibility to compensate temperature and mechanical effects in active population caused by pumping radiation. These effects are main cause for degradation of output beam characteristics. EFFECT: improved three-dimensional and angular characteristics of output laser beam, increased efficiency, simplified design, decreased cost of manufacturing.
Patent RU-95106237-A (RU)
Inventor: NIKIFOROV A V
IPC: H01T13/32
Filed: 1995-04-19
Abstract: FIELD: automotive industry; internal combustion engines; engine electrical devices. SUBSTANCE: spark plug has metal body, insulator with built-in central electrode and common "ground" side electrode installed with certain gap relative to central electrode. Side electrode has through holes of arbitrary shape located out of spark gap zone. Diameter of circumcircle of holes does not exceed half of width of side electrode. EFFECT: improved stability of engine operation, facilitated starting, provision of complete combustion of fuel mixture, simplified blowing out of spark gap. 5 dwg
Patent RU-95108837-A (RU)
Inventor: GATOVA T M
IPC: E04H3/24
Filed: 1995-05-30
Abstract: FIELD: equipment of places of entertainment, in particular, stages for theatrical and variety performances. SUBSTANCE: the stage has several groups of modules differing in height, ladders for passage from level to level and floors counted to the structure of the modules; the modules are made in the form of four frames hinge-joined to one another and fixed in the working position by the floor with a flange resting on the upper end of the module. EFFECT: improved design. 1 cl, 4 dwg
Patent RU-95111349-A (RU)
Inventor: SEMENOV G P
IPC: G01N21/91
Filed: 1995-06-30
Abstract: FIELD: nondestructive inspection of materials and articles. SUBSTANCE: method involves usage of special liquid cleaners. It is executed in the following manner: penetrant is applied to surface prepared for test, is kept on surface and is removed by cleaner. Developer is applied and indication traces characterizing surface and through defects are recorded, layer of developer is removed with liquid cleaners, developer is applied anew, formed indication traces characterizing through defects only are recorded. Results of first and second stages of test are compared and defects are divided into through and surface ones. EFFECT: separate exposure of surface and through defects during one technological operation with one-way access to tested surface.
Patent TW-200420834-A (TW)
Title: Method for generating perpetual power
Inventor: CHIOU JIN-HE
Filed: 2002-11-04
Abstract: A method for generating perpetual power makes uses of a device with a weight potential moving up and down in accompaniment with leverage principle. A rail is provided. The rail is provided at an end thereof with a moving shaft, a retractable shaft provided at an opposite end, and an arcuate tooth rack at a bottom edge of an appropriate location at the center. The surface of the rail is provided at an end thereof with a tooth-block and at an opposite end with a coil that is connected to a weight. The sliding movement of the sliding block drives the weight potential to move up and down, so as to cause the rail to swing in front-rear direction. As such, the arcuate tooth rack drives the gear located at the bottom to cause a generator to generate power, so as to allow perpetual generation of power.
Patent TW-200408376-A (TW)
Title: Absorbent article
Inventor: MIZUTANI SATOSHI
IPC: A61F13/15
Filed: 2002-11-20
Abstract: An absorbent article in accordance with the present invention, when used, abuts against female labia. The absorbent article (14) is comprised of an absorbent sheet body constituted by integrating a water-permeable sheet (11), a water-impermeable sheet (12), and an absorber (13), and forms a bottomed menstrual blood flowing-in hole (14b) having a bottom section on the cloth side of the wearer and an opening in which the pair of labia majora pudenda of the wearer can be put in a state where they are wrapped.
Patent TW-200408463-A (TW)
Title: Device for recovering oil-containing, volatiles and semi-volatile organic matters from soil by microwave
Inventor: JOU CHIH-JU
IPC: B09C1/06
Filed: 2002-11-25
Abstract: A method for recovering oil-containing, volatiles and semi-volatile organic matters from soil by microwave comprises: using a microwave heating to desorb oil, volatiles and semi-volatile organic matters from soil; using a particulate active carbon absorption process to recover steam; using a collector to collect the acidic solution generated by partial decomposition of organic matters caused by the microwave heating; and neutralizing the collected acidic solution.
Patent TW-200412484-A (TW)
Title: Switching type voltage regulator and its method
Inventor: HUANG JIAN-RONG
IPC: H02M3/158
Filed: 2003-01-02
Abstract: The present invention provides a switching type voltage regulator and its method. The regulator includes a pulse width modulator and an adjustable single-hit circuit. When the regulator is in light load, the adjustable single-hit circuit utilizes an input voltage, an adjustable voltage and a PWM signal outputted by the pulse width modulator to generate an adjustable signal to control the on/off operation of the high-level side switch device of the regulator, so that the working cycle of the adjustable signal is controlled by the adjustable voltage to be larger than the working cycle of the PWM signal, thereby reducing the number of operations for the switch and thus decreasing the switching loss and increasing the efficiency of the regulator.
Patent TW-200302355-A (TW)
Title: Method for producing aspherical structure, and aspherical lens array molding tool and aspherical lens array produced by the same method
Inventor: TSUNETOMO KEIJI
IPC: C03C15/00
Filed: 2003-01-17
Abstract: A method for producing an aspherical structure according to the invention includes the steps of: forming a layer on a surface of a substrate so that the layer exhibits an etching rate distribution in a direction perpendicular to the surface of the substrate; forming a mask having a predetermined opening shape on the surface of the layer; and etching the layer to thereby form at least one aspherical concave portion When each concave portion is used as a molding tool so that a resin with which the concave portion is filled is solidified and removed from the concave portion, an aspherical lens array can be formed accurately.