AT32617B - Method and apparatus for the manufacture of toric lenses for eyeglasses u. like - Google Patents

Method and apparatus for the manufacture of toric lenses for eyeglasses u. like

Info

Publication number
AT32617B
AT32617B AT32617DA AT32617B AT 32617 B AT32617 B AT 32617B AT 32617D A AT32617D A AT 32617DA AT 32617 B AT32617 B AT 32617B
Authority
AT
Austria
Prior art keywords
axis
lenses
eyeglasses
manufacture
head
Prior art date
Application number
Other languages
German (de)
Inventor
Stephen Drummond Chalmers
Herbert Sidney Ryland
Original Assignee
Stephen Drummond Chalmers
Herbert Sidney Ryland
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stephen Drummond Chalmers, Herbert Sidney Ryland filed Critical Stephen Drummond Chalmers
Application granted granted Critical
Publication of AT32617B publication Critical patent/AT32617B/en

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Landscapes

  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Description

  

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  Verfahren und Vorrichtung zur Herstellung der torischen Linsen für Augengläser u. dgl. 



   Gegenstand der Erfindung ist ein Verfahren nebst Vorrichtung zur Herstellung von Linsen mit doppelt   gekrümmter   Oberfläche, welche unter dem Namen torische Linsen bekannt sind. Die   abzuschleifenden   und zu polierenden Linsen werden nach ihrer Vorbereitung symmetrisch an einer geeigneten rotierenden Scheibe, Drehkopf oder anderem Supporte, welche in ihrer Achsenrichtung verstellbar sind, derart aufgekittet, dass eine von den erwünschten Kurven durch diese 
 EMI1.1 
 Achse rotierenden   Schleifwerkzeuges,   welche um eine zu den beiden vorgenannten Achsen senkrechte Achse geschieht. 
 EMI1.2 
 ist eine Vorderansicht   ; und Fig. 2 eine Ansicht,   von   rückwärts,   zum Teile im Querschnitt, des Poliergerätes für konvexe Linsen.

   Fig. 3, 4 und 5 zeigen das   Poliergerät für konkave Linsen in   drei Ansichten bzw. Querschnitten. a sind   symmetrisch um   die Achse x-x eines in ihrer Richtung verstellbaren Drehkopfes 
 EMI1.3 
 



   Falls von den beiden Linsenoberflächen die eine oder auch beide konkav smd, so ist die Arbeitsfläche des Schleif- oder Polierwerkzeuges nach der steileren von den   beiden Oberflächen   
 EMI1.4 
 

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 ihrer Mitte   fällt.   



   PATENT-ANSPRÜCHE : 
1. Verfahren zur Herstellung der torischen Linsen für Augengläser u. dgl., dadurch gekennzeichnet, dass die zu schleifenden bzw. zu polierenden und um die Drehachse eines geeigneten Kopfes oder dgl. im Kreise angeordneten Linsen durch ein um seine zu der angeführten Drehachse genau oder ungefähr senkrechte und dieselbe schneidende Achse rotierendes Schleif-bzw. Poliergerät bearbeitet werden, welches zugleich um eine die letztgenamlte Achse schneidende und zu dieser sowie der vorgenannten Achse senkrechte Achse hin und her schwingt.



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  Method and apparatus for the manufacture of toric lenses for eyeglasses u. like



   The subject of the invention is a method and device for the production of lenses with a double curved surface, which are known under the name of toric lenses. The lenses to be abraded and polished are, after their preparation, cemented symmetrically on a suitable rotating disk, rotating head or other support, which can be adjusted in their axial direction, in such a way that one of the desired curves passes through them
 EMI1.1
 Axis rotating grinding tool, which happens around an axis perpendicular to the two aforementioned axes.
 EMI1.2
 is a front view; and FIG. 2 is a rear view, partially in cross section, of the polishing apparatus for convex lenses.

   3, 4 and 5 show the polishing device for concave lenses in three views or cross sections. a are symmetrical about the axis x-x of a rotating head adjustable in their direction
 EMI1.3
 



   If one or both of the two lens surfaces are concave, then the working surface of the grinding or polishing tool is the steeper of the two surfaces
 EMI1.4
 

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 falls in their midst.



   PATENT CLAIMS:
1. Process for the manufacture of toric lenses for eyeglasses u. The like., characterized in that the to be ground or to be polished and arranged in a circle around the axis of rotation of a suitable head or the like by a grinding or cutting axis rotating exactly or approximately perpendicular to the stated axis of rotation and cutting the same. Polishing device are processed, which at the same time swings back and forth about an axis which intersects the last axis and which is perpendicular to this axis and the aforementioned axis.

Claims (1)

2. Vorrichtung zur Ausführung des durch Anspruch 1 geschützten Verfahrens, gekenn- zeichnet durch die Kombination eines längs seiner Drehachse verstellbaren, die Linsen auf seinem äusseren oder inneren Umfange tragenden Kopfes mit einem um seine auf die Kopfachse senkrechte oder nahezu senkrechte Achse rotierenden und die Linsen bearbeitenden Schleifwerkzeuge, dessen Support zugleich um eine zu den Achsenrichtungen der beiden Achsen senkrechte und versetzbare Achse hin und her schwingt. 2. Apparatus for carrying out the method protected by claim 1, characterized by the combination of a head which is adjustable along its axis of rotation and which carries the lenses on its outer or inner circumference with a head rotating about its axis perpendicular or almost perpendicular to the head axis and the lenses machining grinding tools whose support swings back and forth at the same time about an axis that is perpendicular and displaceable to the axis directions of the two axes.
AT32617D 1906-04-04 1906-04-04 Method and apparatus for the manufacture of toric lenses for eyeglasses u. like AT32617B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT32617T 1906-04-04

Publications (1)

Publication Number Publication Date
AT32617B true AT32617B (en) 1908-04-25

Family

ID=3547843

Family Applications (1)

Application Number Title Priority Date Filing Date
AT32617D AT32617B (en) 1906-04-04 1906-04-04 Method and apparatus for the manufacture of toric lenses for eyeglasses u. like

Country Status (1)

Country Link
AT (1) AT32617B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1217818B (en) * 1958-02-14 1966-05-26 American Optical Corp Grinding machine for processing toric lenses on a rotating tool corresponding to the torus surface to be produced

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1217818B (en) * 1958-02-14 1966-05-26 American Optical Corp Grinding machine for processing toric lenses on a rotating tool corresponding to the torus surface to be produced

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