LENS METER

PURPOSE: To provide a lens meter by which the cylindrical axis of a lens to be worked can be made to coincide with a prescribed astigmatic axial angle even if a numeric value of a scale is not read. CONSTITUTION: In a lens meter provided with a lens meter 1 to measure an optical characteristic of a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: ISHIHARA TAKETOSHI
Format: Patent
Sprache:eng
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