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. likeInfo
- 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
Links
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.
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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
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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
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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
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Axis rotating grinding tool, which happens around an axis perpendicular to the two aforementioned axes.
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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
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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
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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)
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)
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 |
-
1906
- 1906-04-04 AT AT32617D patent/AT32617B/en active
Cited By (1)
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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