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公开(公告)号：JPH0643404A
公开(公告)日：1994-02-18
申请号：JP30138392
申请日：1992-11-11
Applicant: ESSILOR INT
Inventor： KUROODO PEDORONO
Abstract: PURPOSE: To provide a multi-focal lens where a desired vertical position of an eye in an orbit and the change (reduction) of the close vision distance accompanied with aging are taken into consideration. CONSTITUTION: A main longitude part DP placed in an intermediate vision distance area VI and a close vision area VP has a section DC forming an angle αto the perpendicular line, and in this case, the value of the angle α is an increment function of an added value A of the degree of a lens. In a system of horizontal and vertical coordinate axes (X'X and Y'Y), a point C in the section DC has a value on the axis of ordinates which is an increment function of the added value A of the degree. At this point C, an average spherical value of an aspherical surface S corresponds to a degree added value which is 0.8 to 0.92 times as large as the nominal degree added value of the lens.
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公开(公告)号：JPH04218017A
公开(公告)日：1992-08-07
申请号：JP8205691
申请日：1991-01-22
Applicant: ESSILOR INT
Inventor： DOMINIKU BOODO , JIYAN KUROODO MESURAARU , JIERAARU OBUREEKU , PIEERU SHIYAABUERU , DENISU JIYOIU , JIYAN TABUURI
Abstract: PURPOSE: To provide a method capable of manufacturing an artifical optical lens having a specific magnification contour by starting its process from an artifical optical lens having a different magnification contour. CONSTITUTION: The manufacturing method for an artificial optical lens having a specific magnification contour starts its process from an artifical optical lens having a different magnification contour and corrects the initial magnification contour by a physical-chemical treating method to obtain the required magnification contour and a rotary mask is used for spatially adjusting energy flux.
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公开(公告)号：JPH03135396A
公开(公告)日：1991-06-10
申请号：JP26030790
申请日：1990-09-28
Applicant: ESSILOR INT
Inventor： FUIRITSUPU KURARA
IPC: G02C13/00 , B24B9/14 , B24B13/005 , G05D3/12 , H02P23/00
Abstract: PURPOSE: To drive an electric motor with a simple method by controlling a circuit for controlling the supply of power to the electric motor with a sensor that responds to the phase difference between the current of the stator coil winding of the electric motor and the voltage between coil windings. CONSTITUTION: A sensor 32 has a comparator 33 and receives a signal SI and a signal SII by the comparator 33. The signal SI indicates current in the stator coil winding of an electric motor 22 and the zero point passage of the current, and the signal SII indicates the zero point passage of a voltage between coil windings. For creating the signal SI, the sensor 32 has a device 34 for measuring the coil winding current of the electric motor 22 and a device 35 for detecting the zero point passage of the current in series. For creating the signal SII, the sensor 32 has a device 36 for constituting an interface between an AC-line voltage and a low-voltage control unit 24 in series, a device 37 for detecting the zero point of the voltage, and a device 38 for generating a pulse during a specified period starting from the time when the voltage passes the zero point.
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公开(公告)号：JPH0374389A
公开(公告)日：1991-03-28
申请号：JP14841490
申请日：1990-06-05
Applicant: ESSILOR INT
Inventor： ROBEERU GIYUGURIERUMETSUTEI , PASUKARU TARUDEIOO
IPC: G02B5/23 , C07D498/20 , C09K9/02 , G03C1/685
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公开(公告)号：JPH0345613A
公开(公告)日：1991-02-27
申请号：JP16398190
申请日：1990-06-21
Applicant: ESSILOR INT
Inventor： REANIRIITO IEAN , JIYORUJIYU BUAAJI , JIERAARU MARUTAN , PATORITSUKU GIYURERO
IPC: G01N21/41 , B01J4/00 , C08F2/00 , C08F2/02 , C08F18/14 , C08F18/24 , C08F218/00 , C08F263/00 , G02B1/04 , G02C7/02
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Patent Agency Ranking166.发明专利
公开(公告)号：JPH0324432A
公开(公告)日：1991-02-01
申请号：JP14715690
申请日：1990-06-05
Applicant: ESSILOR INT
Inventor： PATORITSUKU BERUTORAN
Abstract: PURPOSE: To inspect an plane of an optical system accurately by arranging a converging adaptor element between a holding station and an array. CONSTITUTION: This equipment 12 comprises a light emitting means 13 constituting a light source on the optical path, a holding station 15 receiving an optical system 10 under inspection, an array 16, means 17 for receiving an image in the downstream of the array 16, and a data processing means 18 utilizing the image through phase detection. Furthermore, a converging adaptor element 30 is disposed between the holding station 15 and the array 16 and the data processing means 18 comprises a light beam plot program, and a calibration means where the theoretical aberration and the manufacturing aberration of the conversion adaptor element 30 are taken into account. According to the arrangement, a plane of the optical system 10 can be inspected accurately.
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公开(公告)号：JPH0311315A
公开(公告)日：1991-01-18
申请号：JP12654290
申请日：1990-05-16
Applicant: ESSILOR INT
Inventor： JIYAN RUI MERUSHIEERU
Abstract: PURPOSE: To obtain an adjustable optical device, especially for an in-eyeball implant, by providing a front surface and rear surface, at least one of which is provided with a central part as a rotating aspherical shape with a meridian sectional plane satisfying a specific expression. CONSTITUTION: The device consists of a sight correcting optical element with the front surface and rear surfaces, at least one of which is provided with the central part in a rotating aspherical form with a meridian part satisfying an expression I. R1 , K, A2 to A6 in the expression I are numerical parameters and the parameters selected to give some representative curve to a proximity object P, defined by an expression II with respect to an optical system composed of the optical element and the model of a specific eye (when the optical element is an in-eyeball implant, a crystal lens is excluded). In the expression II, N' is the refractive index of an image medium, f' is the focus of the model of the eye and dx ' shows the aberration in sphericality in vertical direction in an image space. Thereby a focal characteristic is provided at two points expression the state of an accurate sight with respect to a far sight and a near sight, and concerning an intermediate sight between these two sights a user is given a most comfortable sight.
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公开(公告)号：JPH02240625A
公开(公告)日：1990-09-25
申请号：JP2431890
申请日：1990-02-02
Applicant: ESSILOR INT
Inventor： KURISUCHIYAN MIEEJIYU , PIEERU MONTEIYU , JIERAARU OBUREEKU
Abstract: PURPOSE: To clearly observe an object existing in any range by preparing a curve expressing a proximity value in a limit value range specific to an increment required by a user as a function of a distance from an optical axis. CONSTITUTION: A curve expressing a proximity value P defined as the inverse of a diopter D to be a position existing in a simultaneous visual field optical lens for correcting presbyopia, parallel with the optical axis A and intersecting with the optical axis A after the passage of light F with a distance (h) from the axis A through the lens is defined by n-th order and h-th order polynomials. The curve exists in an area between a lower envelope curve Pint and an upper envelope curve Psup satisfying the equation I. Provided that P is a proximity value necessary for a far visual field and A'i A"i are the coefficients of various polynomials depending upon the value of the increment δ1 =ADD of the proximity value corresponding to the degree of user's presbyopia. Consequently the user can clearly observe an object existing in any range (a far range, an intermediate range, the shortest range).
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公开(公告)号：JPH0284615A
公开(公告)日：1990-03-26
申请号：JP8019989
申请日：1989-03-29
Applicant: ESSILOR INT , GARENIKA HOLDING SA
Inventor： MOORISU RORETSUTEI , MANFURETSUDO ROTSUKURINGAA
Abstract: PURPOSE: To prevent contact and contamination without requiring hand operation by providing the position opposed to the hole of a cap member with a mobile supplying device having a means for separately feeding respective reagents of unit dosage in the peripheral parts. CONSTITUTION: A sterilized physiological salt soln. is put into a tank 1 and a receiver 2 contg. a contact lens is immersed therein. A cap 3 is screwed to the tank 1. A driving device 4 is started and the mobile supplying device 6 is rotated and the reagent in a passage 13 is carried to the opposite position of the hole 5 and is automatically fed into the tank 1. Further, the supplying device 6 rotates and feeds the reagent in the passage 13' into the tank 1. when the supplying device 6 rotates further and ends rotating one turn, the passage 13" comes to the position where the hole 5 and the center are aligned and the third reagent is sent into the tank 1. As a result, the simple, safe and efficient device which automatically executes a series of the operations required for the treatment of the contact lens while abiding by the amts. of the reagents and the reaction time required for the same is obtd.
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公开(公告)号：JPS6438720A
公开(公告)日：1989-02-09
申请号：JP10740688
申请日：1988-04-28
Applicant: ESSILOR INT
Inventor： FURANSOWA BURUURU , AREN SHIYANZABUOWAARU
Abstract: PURPOSE: To prevent deformation of a circle or an enclosure which is harmful to accuracy for reading by accurately adjusting the force which a tracer is pressed to an article as a read object. CONSTITUTION: A driving motor is inserted above a tracer 16 through auxiliary carriages 33X and 33Y, and floating assemblies 29X and 29Y are inserted between auxiliary carriages 33X and 33Y and a carriage Y, and the power feed to the driving motor follows up a detection means which senses the relative movement between auxiliary carriages 33X and 33Y and the carriage Y. When the force with which the relative movement allowed by floating assemblies 29X and 29Y in proportion to the engaging process of the tracer 16 brought into contact with the article, whose outline should be read, presses the tracer 16 to this article reaches a maximum allowable value, the power feed to the driving motor is cut off. Thus, the tracer is properly guided without a danger of deformation of the circle or the enclosure.
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