A text on the basic and changing technologies for preparing lens surfaces for grinding. Featuring review problems, examples and summaries of important points in step-by-step tables, it covers all stages - single vision, bifocal, trifocal, progressive addition and speciality lenses.
Sprache
Verlagsort
Verlagsgruppe
Zielgruppe
Für höhere Schule und Studium
Für Beruf und Forschung
Illustrationen
284 illustrations, glossary, appendix, bibliography, index
Maße
Höhe: 297 mm
Breite: 210 mm
Gewicht
ISBN-13
978-0-7506-9177-2 (9780750691772)
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Schweitzer Klassifikation
Review of optics; the lens blank; layout for single vision lens surfacing; layout and marking of flat top and curved top lenses; layout and marking of round seg and blended bifocal lenses; layout and marking of Franklin style lenses; basic concepts in finding tool curves lens thickness; additional factors influencing tool curves and lens thickness; blocking and cribbing; generating; lap tools; fining and polishing; deblocking, verifying and hard coating; high powered lenses; progressive add lenses; creating horizontal prism with the near add; vertical imbalance corrections; alternatives to lens surfacing; safety eyewear standards.