baber/WOPTO huggingface dataset:
Patent EP-0284674-A1 (EP)
Inventor: MASTERS WILLIAM E
IPC: G05B19/41
Filed: 1987-03-30
Abstract: A computer automated manufacturing process and system (CAMPS) is disclosed which includes a computer system (12) comprising a computer aided design computer (14) and a machine controller (16) which receives a file of co-ordinate information (18). An article (10) is designed by means of the computer aided design computer (14) and a data file (18) of three-dimensional co-ordinate information is compiled. The co-ordinate information is input to the machine controller (16) which controls servos (20) and (22) in a polar co-ordinate system. The servos (20) and (22) further control the position of a working head (24) and a working head (26) so that mass particles are ejected to arrive at predetermined co-ordinate points in the co-ordinate system to form an article (34). An origination seed (32) is fixed at an origin of the co-ordinate system and the article (34) is built up around the origination seed (32). Other co-ordinate systems and apparatus for locating the mass particles at the co-ordinates of a three-dimensional article are disclosed so that the article may be built up in a number of co-ordinate systems, and controlled environments.
Patent EP-0249408-A1 (EP)
Inventor: DAMIANO JOHN
IPC: C04B28/02
Filed: 1987-06-05
Abstract: A cementitious composition, which comprises a cement and a particulate inorganic substrate (e.g. calcium carbonate or iron oxide) previously surface-treated with a fatty acid (e.g. oleic or stearic acid), the surface-treated inorganic substrate being present in an amount sufficient to increase the strength and water-resistance of the composition.
Patent EP-0261763-A1 (EP)
Inventor: ORLEK BARRY SIDNEY
IPC: A61P25/28
Filed: 1987-06-23
Abstract: A compound of formula (I) or a pharmaceutically acceptable salt thereof:
     in which X represents a group
     in which p represents an integer of 2 to 4; r represents an integer of 1 or 2; s represents 0 or 1; and A represents a 3-membered divalent residue completing a 5-membered aromatic ring and comprises one or two heteroatoms selected from oxygen, nitrogen and sulphur, any amino nitrogen optionally substituted by a C  1-4  alkyl group, and when (p,r,s) is (2,2,0) or (2,2,1) any A comprising 2 heteroatoms is optionally C-substituted by a methyl group, and when (p,r,s) is (2,1,0), (2,1,1) or (3,1,0) any A comprising 2 heteroatoms is optionally C-substituted by C  1-2  alkyl and any A comprising one heteroatom is optionally C-substituted by a methyl group, and wherein compounds of formula (I) having two assymetric centres have the stereo-chemical configuration in which the group X and the (CH₂)  r  bridge are on the same side of the plane of the molecule which contains both bridgehead atoms and the ring carbon atom bonded to the group X.
Patent EP-0250290-A1 (EP)
Inventor: PIPON YVES
IPC: A47C1/00
Filed: 1987-06-04
Abstract: The articulation member comprises asymetrically guided bearing plates. A fixed flange is shaped in order to support, by means of sectors, sliding bearing plates having an upper toothing pitch corresponding to pitch of a toothing of a movable flange. The bearing plates are normally pushed back from the toothing by elastic means and have positions which are angularly shifted for two of them and submitted to bias of control means such as a cam. An angular shift of two of the bearing plates is of 120 DEG - alpha /3 (=240 DEG -2/3 alpha ) with for complement 120 DEG +2/3 alpha ,  alpha being an angle forming a pitch for each tooth of the toothed ring and teeth of the bearing plates.
Patent EP-0267092-A1 (EP)
Inventor: RIEUNIER JEAN-BAPTISTE
IPC: D21H13/40
Filed: 1987-10-19
Abstract: Paper based on glass microfibres obtained by centrifuging molten glass and drawing by means of an annular gas stream, at high temperature and velocity, along the peripheral wall of the centrifuge. The centrifuge rotates at a peripheral speed of between 50 and 20 m/s and the glass load is smaller than 6 tons per day per metre of centrifuge periphery in the case of 2-3 micron microfibres and less than 1 ton per day and per metre of centrifuge periphery in the case of microfibres of less than 1 micron. 
<??>Application especially to the production of air filters and separators for accumulator batteries.
Patent EP-0275746-A1 (EP)
Inventor: DEVILLARD JACQUES
IPC: C22C1/05
Filed: 1987-12-14
Abstract: The material consists of a metal or of an alloy of this metal constituting a matrix and of a dispersoid element (4) or of a dispersoid compound combined with the matrix by a dispersion of the element or of the compound within the matrix. It comprises the following stages: - the material of the matrix is conditioned in the form of spherical particles with a diameter greater than 300 microns; - the particles of the dispersoid element or compound (4) are deposited onto the particles of the material constituting the matrix, - the particles of material constituting the matrix which are coated with the particles of the dispersoid compound are introduced into a mould (6) which has an internal mould cavity (11) corresponding to an article shape to be obtained, - the particles of the material constituting the coated matrix are subjected to a sintering operation by isostatic compression with heating. <IMAGE>
Patent EP-0257076-A1 (EP)
Inventor: MOLLER WERNER
IPC: B23K1/00
Filed: 1987-02-28
Abstract: Selon un procédé de microsoudage qui utilise un faisceau laser pour chauffer sur une pièce à usiner un joint brasé et la soudure qui est appliquée sur celui-ci, la chaleur dissipée par la soudure chauffée est mesurée avec un détecteur aux infra-rouges (M) et la discontinuité qui apparaît lorsque le point de fusion de la soudure est atteint est déterminée à partir du signal de mesure à l'aide d'un dispositif électronique (MIR). Une fois que le point de fusion ainsi déterminé est atteint, on interrompt le processus d'échauffement du joint brasé, de préférence en faisant avancer la pièce à usiner (W). Ce procédé a l'avantage de pouvoir être réalisé avec des pièces essentiellement connues et éprouvées.
Patent EP-0289529-A1 (EP)
Inventor: DADGAR AHMAD
IPC: C09K8/82
Filed: 1987-09-10
Abstract: On peut augmenter la viscosité de saumures de métaux alcalins et alcalino-terreux et d'halogénure de zinc à l'aide de compositions comprenant un polymère hydrophile augmentant la viscosité, une huile minérale, des agents tensio-actifs solubles dans l'huile, des solvants polaires et un diluant.
Patent EP-0300403-A1 (EP)
Inventor: GIACOMINI MARIO
IPC: F16K5/06
Filed: 1988-07-17
Abstract: A profiled sealing gasket (1) for stopcocks with a ball valve (4), in which at least one annular groove (6) is present in the gasket annular support and sealing surface for the ball valve. The annular groove forms two annular ridges (7, 8) which support and seal the ball valve. This annular groove also forms a chamber to trap impurities. The sides (9, 10) of the gasket adjacent to the ridges are tapered to make the annular support and sealing ridges more flexible.
Patent EP-0310816-A1 (EP)
Title: Automatische Frequenznachführung bei Korpuskularstrahlmessverfahren unter Anwendung eines modulierten Primärstrahls
Inventor: BRUST HANS-DETLEF
IPC: H01J37/256
Filed: 1988-09-02
Abstract: Verfahren und Vorrichtung zur Kompensation von Frequenzdrifterscheinungen eines zu untersuchenden Signals in einer Elektronenstrahlmeßanordnung. Aus dem zu untersuchenden Signal wird ein Regelsignal (Ur) gewonnen und hiermit die Modulationsfrequenz (fb) eines Beam-blanking Generators (BBG) in der Elektronenstrahlmeßanordnung entsprechend dem Frequenzdrift in dem untersuchenden Signal verändert.
Patent EP-0337011-A1 (EP)
Inventor: JORGENSEN GERT
IPC: B60P1/64
Filed: 1988-10-25
Abstract: Carrying device (7) with locking elements (5) for mounting and fixing an interchangeable body or the like on a vehicle frame (13), which device is mounted rotatably about a horizontal axle (18) on the vehicle frame (13) and has a plurality of carrier faces (6) which are arranged at different distances from the axle (18), bear locking elements (8) pointing in different directions and are capable of being swivelled optionally into the working position by swivelling the carrying device in order to match the height of the support point of the vehicle to the height of the respective interchangeable body. <IMAGE>
Patent EP-0328764-A1 (EP)
Title: Wanddickenmessvorrichtung für Rohre, Kabelummantelungen und dergleichen, insbesondere aus extrudiertem Kunststoff
Inventor: WOLFL VOLKMAR RUDOLF
IPC: G01B5/10
Filed: 1988-12-12
Abstract: Die Erfindung bezieht sich auf eine Wanddickenmeßvorrichtung für Rohre und dergleichen, insbesondere aus extrudiertem Kunststoff, mit einem an Meß- und Versorgungsleitungen angeschlossenen Meßkopf (15). Der Meßkopf ist mittels einer an einem eine Durchlauföffnung für das zu messende Rohr aufweisenden Gestell befestigten Führung (14) um die Durchlauföffnung herum reversierend gelagert. Die Meß- und Versorgungsleitungen (22-25) sind in zwei Führungsketten (20,21) untergebracht, die gegenläufig und jeweils zum einen Teil auf einer inneren Führungsbahn (18) und zum anderen Teil auf einer damit verbundenen äußeren Führungsbahn (19) eines Führungskernstückes (17) geführt sind. Das Führungskernstück (17) ist im wesentlichen als Kreisringabschnitt ausgebildet und konzentrisch zur Durchlauföffnung angeordnet und um diese herum beweglich. Die Enden (26,27) der auf der äußeren Führungsbahn (19) befindlichen Teile der Führungsketten (20,21) sind an einem Festpunkt der Führung (14) und die Enden (28,29) der auf der inneren Führungsbahn (18) befindlichen Teile der Führungsketten (20,21) sind mit dem beweglichen Meßkopf (15) gekoppelt.
Patent EP-0276895-A1 (EP)
Title: Power connector
Inventor: MOUISSIE BOB
IPC: H01R12/71
Filed: 1988-01-27
Abstract: A power connector for printing a multiconductor cable and a printed circuit board. The power connector includes a connector block with two pivotable longitudinal walls, each having a comblike edge which, when pivoted upwards, meet to define a plurality of slots which receive and maintain the conductor of the cable. The connector block is received within a connector cover, and the assembly is mounted on a pin holder disposed on a base plate. The contact pins of the pin holder project upwards to contact the conductors of the cable and downward to contact the printed circuit board.
Patent EP-0322928-A1 (EP)
Inventor: DEPOLI ERMINIO
IPC: F16D27/12
Filed: 1988-03-31
Abstract: Coupling with double clutch, especially for looms, which comprises a first controllable clutch (12), coupling a drive shaft (1), conn­ected to a first, self-driven member of the loom, to a driven shaft (6), connected to a second member of the loom, movable in synchron­ism with the first and coaxial with the drive shaft, and a second controllable clutch (17), coupling the driven shaft (6)) to an aux­iliary motor device (29), which clutches (12,17) are equipped with respective actuating electromagnets (13,18) acting in opposition to elastic means (14,8), in which the clutches each comprise an annular electromagnet (13,18) rigidly connected to a fixed support shell (23), inside which the drive shaft (1) and driven shaft (6) are supported with their axes in a fixed position, which electromagnet is at least partly contained by a rotor (2,9) axially fixed with respect to it and linked with the magnetic flux generated by the electromagnet itself when it is energized, in front of which rotor there is present, on the opposite side from the electromagnet, an annular armature (3,7), axially movable under the action of the magnetic field gener­ated by the relevant electromagnet (13,18) in opposition to the elastic means (14,8), which armatures are rotably locked respect­ively to the drive shaft and driven shaft and carry the movable members (15,19) of the clutches, in correspondence with which are arranged the fixed members of the clutches (16,20), carried respect­ively by a flanged element (5) rigidly connected to the driven shaft (6) and by the rotor of the second clutch (9), carrying integral means for connection to the auxiliary motor device (29).
Patent EP-0295742-A1 (EP)
Inventor: JANSSENS FRANS EDUARD
IPC: C07D405/14
Filed: 1988-06-08
Abstract: Novel N-(4-piperidinyl) bicyclic condensed 2-imidazolamine derivatives of formula
     wherein: A 1  =A 2 -A 3 =A 4  is -CH =CH-CH =CH-, -N=CH-CH=CH-, -CH =N-CH =CH-, -CH =CH-N =CH or -CH =CH-CH = N-; R is hydrogen or C 1-6 alkyl; R 1  is furanyl substituted with C 1-6  alkyl, pyrazinyl, thiazolyl, or imidazolyl optionally substituted with C 1-6 alkyl; L is C 3-6 alkenyl optionally substituted with Ar 3 , or L is a radical of formula -Alk-R 3 , -Alk-O-R 4 , -Alk-N-(R S )-R 6 , -Alk-Z-C(=O)-R 7  or -CH 2 -CH(OH)-CH 2 -O-R 9 ; the pharmaceutically acceptable acid addition salts and possible stereochemically isomeric forms thereof, which compounds are anti-histaminic agents; pharmaceutical compositions containing such compounds as an active ingredient and methods of preparing said compounds and pharmaceutical compositions.
Patent EP-0318064-A1 (EP)
Inventor: BISIACH BRUNO
IPC: B25J9/02
Filed: 1988-07-27
Abstract: The laser beam robot is mounted on a portal framework and comprises at least five axes defined as follows:
     I. A horizontal linear axis for translating the robot (14) along the portal framework (10);   II. an axis swinging about a center coinciding with the point onto which the laser beam (67) generated outside (110) the robot incides onto the robot;   III. a linear axis for translating the robot in a vertical plane;   IV-V-VI. two or three polar axes im the hollow operating head (16, 16′) to orient and focus the laser beam (67) according to a desired path.   
     The laser beam (67) follows a rectilinear path until a mirror (88) positioned in the swinging center of the robot arm (14) and secured thereto, but fixed in respect of axis III. A slit (90) allows the laser beam to strike the mirror (88) in any position of the robot arm along the axis III. The laser beam is sent to the hollow head and from here it is reflected and focused outside the robot.
Patent EP-0296749-A1 (EP)
Inventor: EDWARDS PHILIP NEIL
IPC: C07D249/08
Filed: 1988-06-14
Abstract: A (substituted-aralkyl)heterocyclic compound of the formula I
      wherein R¹ is an azido, carbamoyl, cyano, formyl, hydroxy or nitro radical, a 1-6C 1-hydroxyalkyl, alkoxy, alkylcarbamoyl, alkylthio, alkylsulphinyl or alkylsulphonyl radical, a 2- cyanoethyl radical, optionally bearing one to four 1-6C alkyl substituents, or a 2-6C alkanoyl, halogenoalkanoyl, alkanoyloxy, alkanoylamino, dialkylcarbamoyl or alkoxycarbonyl radical; R² and R³, which may be the same or different, are each a hydrogen atom, a 1-6C alkyl, deuterioalkyl or halogenoalkyl radical, or a phenyl or phenyl(1-6C alkyl) radical, in each of which the phenyl may optionally bear one or more substituents; or R² and R³, together with the carbon atom to which they are attached, may form a 3- to 6-membered ring; or R¹R²R³C-­is a 1,1-dicyanoethyl or trifluoromethylsulphonyl radical; R⁴ is a hydrogen or halogen atom, a cyano or nitro radical or a 1-6C alkyl or halogenoalkyl radical; R⁵ has any of the values defined above for the group R¹R²R³C but is not necessarily the same as R¹R²R³C, or has any of the values defined above for R⁴ but is not necessarily the same as R⁴, or is a carbamoyl, 1-pyrrolidinyl-carbonyl, piperidinocarbonyl, morpholinocarbonyl or nitro radical, a 1-6C alkoxy or halogenoalkoxy radical or a 2-6C alkanoyl or alkoxy-carbonyl radical; A is a methylene or ethylene radical optionally bearing one or more substituents selected from deuterium and halogen atoms, carbamoyl, cyano and hydroxy radicals, 1-6C alkyl and alkoxy radicals, and 2-6C alkanoyloxy radicals provided that when A is linked to R⁶ through a nitrogen atom thereof, it may not bear a hydroxy, alkoxy or alkanoyloxy substituent on the carbon atom adjacent to such nitrogen atoms; and R⁶ is a 1 H -1,2,4- triazol-1-yl, 4 H -1,2,4-triazol-4-yl, 1 H -­imidazol-1-yl, 5-cyano-1 H -imidazol-1-yl, 3-pyridyl or 5-pyrimidinyl   radical, or a 1 H -imidazol-1-yl radical, bearing at the 5-position thereof a 1-6C alkyl substituent which is itself optionally substituted by one or more carbamoyl, cyano, hydroxy or 2-6C alkoxycarbonyl radicals; and provided that when R², R³, R⁴ and R⁵ are hydrogen, A is a methylene radical and R⁶ is a 3-pyridyl radical, R¹ is not a cyano, hydroxy or hydroxymethyl radical, and when R¹ is a hydroxy radical, R³, R⁴ and R⁵ are hydrogen, A is a methylene radical and R⁶ is 3-pyridyl, R² is not a methyl or a 2-chloro-1-methylethyl radical, and provided that when R¹ is a methoxycarbonyl radical, R², R³, R⁴ and R⁵ are hydrogen and A is a methylene radical, R¹ is not a 1 H -imidazol-1-yl radical; and the pharmaceutically acceptable acid addition salts thereof.
Patent EP-0320238-A1 (EP)
Inventor: KAN KOJIRO
IPC: H05K3/38
Filed: 1988-12-07
Abstract: Compositions containing an unsaturated bisimide component (A) and a diamine component (B) at the (A)/(B) molar ratio of 0.9-1.5 and (C) 0.01-4.0% by weight, based on the sum of (A) and (B), of at least one compound selected from radical polymerization inhibitors, carboxylic acids and acid anhydrides provide, upon heating, imide type prepolymer compositions which can be cured to provide products which are tough and have excellent adhesive strength to glass cloths and metals and heat resistance.
Patent EP-0279734-A1 (EP)
Inventor: LAZZARI JEAN-PIERRE
IPC: G11B5/82
Filed: 1988-02-08
Abstract: Le substrat comprend une galette d'aluminium (10) et deux feuilles de plastique (39, 41) pressées à chaud contre la galette. Les faces extérieures (38 et 40) offrent une bonne planéité résultant de l'état de surface des plateaux de pressage. Application à la réalisation de substrats destinés à la fabrication de disques pour enregistrement magnétique.
Patent EP-0278911-A1 (EP)
Inventor: LANG MARC DR
IPC: C07D499/88
Filed: 1988-02-05
Abstract: Verbindungen der Formel <IMAGE> worin R1 durch Hydroxy oder geschütztes Hydroxy substituiertes Niederalkyl ist, R2 Carboxyl oder funktionell abgewandeltes Carboxyl bedeutet, R3 Wasserstoff, Amino, mono- oder di-substituiertes Amino, Carbamoyl, Hydroxy, geschütztes Hydroxy, Carbamoyloxy, Niederalkoxy, Halogen, Niederalkanoyl, Sulfamoyl oder Heteroarylthio ist, R4 und R5 unabhängig voneinander für Wasserstoff, Niederalkyl, Hydroxy, geschütztes Hydroxy, Niederalkoxy, Halogen, Amino, geschütztes Amino, Niederalkanoylamino oder Carbamoyl oder zusammen für Methylendioxy stehen, Y eine Gruppe der Formel -O-, -S- oder -NR6-bedeutet, R6 Wasserstoff oder Niederalkyl ist, A1 Niederalkylen oder gegebenenfalls substitutiertes Phenylen ist und A2 für eine direkte Bindung steht oder Niederalkylen bedeutet und Salze von solchen Verbindungen haben antibakterielle Wirksamkeit. Die Verbindungen der Formel I werden nach an sich bekannten Verfahren hergestellt.
Patent EP-0326787-A1 (EP)
Inventor: TIEFENTHALER EDELBERT
IPC: F16K3/18
Filed: 1988-12-19
Abstract: The gate valve has a moving valve (6), containing two sealing plates (8, 9), which valve (6) is provided with two servo-pistons (25, 26) arranged diametrically opposite one another. The servo-pistons are each guided in a cylinder (27, 28) and the cylinder chambers (29, 31; 30, 32) on both sides of each piston are connected to one another in each case via a restrictor point (37, 38). The internally located cylinder chambers (29, 30) are connected to the through-flow chamber of the gate valve and the externally located cylinder chambers (31, 32) can be connected in each case via a control valve (21, 21') to a pressure sink. Between the two sealing plates (8, 9) there is a chamber (16), sealed against the valve (6), on which a pressure medium can act when the valve is in the closed position.
Patent EP-0305481-A1 (EP)
Inventor: KECK PETER C
IPC: C12N15/62
Filed: 1988-03-04
Abstract: Un nouveau polypeptide utile comme moitié de peptide d'amorce ou de fin dans des techniques de production de protéine d'ADN recombinant mettant en oeuvre une méthodologie de protéines fusionnées est divulgué. Le polypeptide comprend une hélice amphiphilique conçue au niveau de l'ADN pour avoir des résidus d'acides aminés chargés hydrophiles sur un côté du cylindre de l'hélice, et des résidus d'acides aminés monopolaires sur l'autre côté du cylindre de l'hélice. Lorsque l'ADN codant pour l'hélice est fixé à un gène codant pour une protéine d'intérêt, un haut niveau d'expression est atteint et des corps d'inclusion sont formés spontanément. Les corps d'inclusion peuvent être recueillis et purifiés facilement en modifiant la force ionique et/ou le pH du milieu utilisé pour dissoudre les corps d'inclusion. Après purification, la protéine fusionnée est clivée pour séparer l'hélice amphiphilique du produit.
Patent EP-0313620-A1 (EP)
Inventor: SCOTT JOHN CHRISTOPHER
IPC: G01S17/10
Filed: 1988-05-02
Abstract: Un procédé permettant de localiser un objet dans une atmosphère optiquement dense (15) consiste à émettre un signal optique à onde pulsée (16) en direction de l'objet à travers l'atmosphère adjacente à l'objet. Une application particulière est la localisation de la surface (14) des éléments contenus dans un four (10), tel que la charge (12) dans un haut fourneau. Un signal reçu comprenant au moins une partie du signal réfléchi par l'objet est contrôllé et analysé par rapport au signal émis, de façon à déterminer la position de l'objet. Cette analyse comprend l'identification du flanc arrière du signal pulsé reçu, ce qui permet de déterminer le temps écoulé entre la détection des signaux émis et reçus.
Patent EP-0363402-A1 (EP)
Inventor: WALSH WILLIAM E
IPC: C07H7/033
Filed: 1988-05-03
Abstract: Nouveaux composés d'acide cyclopolyglucuronique qui sont utiles pour traiter des affections chez l'homme telles l'acné, les points noirs et d'autres lésions faciales. L'invention concerne plus particulièrement de nouvelles compositions pharmaceutiques qui s'emploient sous forme de crèmes ou de pommades topiques, de pilules ou de capsules, en concentré ou solution injectable, dans une composition pulvérisable ou dans des compositions sous forme de suppositoires.
Patent EP-0314771-A1 (EP)
Inventor: VALCHANOV VYACHESLAV DEYANOV
IPC: A61N/
Filed: 1988-05-18
Abstract: Un procédé et un appareil permettent d'appliquer un traitement medical de la pseudo-arthrose, la consolidation osseuse retardée, de déformations osseuses, la correction de la longueur des longs os tubulaires, l'immobilisation chirurgicale de joints, l'accélération du soudage normal des os, le traitement de tumeurs des os, la nécrose aseptique, le retard dans la croissance osseuse, etc, traitement pendant lequel le membre d'un patient sous anesthésie est fixé au chariot porteur (9) de l'appareil. Après avoir centré le site pathologique, on le soumet une fois, consécutivement et extracorporellement, à l'action d'ondes de choc ayant des fréquences et des pressions diverses, ainsi que des durées d'impulsion diverses, pendant des durées diverses, puis on immobilise celui-ci pendant une plus longue période. L'appareil comprend un générateur d'ondes de choc (2) agencé sous le chariot (9) de support du patient, un générateur de rayons X (5), une caméra de télévison (12), un convertisseur opto-électronique (11) agencé dans l'axe longitudinal (13) du générateur de rayons X (5) et un photodiaphragme (10). Le point d'intersection des axes longitudinaux du générateur de rayons X (5) et du photodiaphragme (10) forme le point d'impact (15) des ondes de choc.
Patent EP-0341315-A1 (EP)
Inventor: NAKATANI HAJIME MITSUBISHI DEN
IPC: H01S3/225
Filed: 1988-10-28
Abstract: Une partie d'un faisceau laser dont la longueur d'onde est sélectionnée par deux pièces d'étalon dans l'oscillateur laser est polarisée, et un étalon est commandé en fonction des résultats de l'analyse du faisceau laser polarisé pour stabiliser la longueur d'onde du faisceau. Une autre partie du faisceau laser est utilisée pour mesurer un changement dans le faisceau laser de sortie, et le changement est analysé pour commander un autre étalon afin de supprimer la réduction du faisceau laser de sortie.