Master the basics of eye comfort and clear vision with practical, hands‑on guidance. This guide covers how spectacles are tested and adjusted, from understanding lens shapes to locating the optical center. It explains simple methods to check lens strength, identify cylinder and prism needs, and ensure a proper fit for everyday wear.
Two short chapters walk you through common tests, what they reveal about lens quality, and how to interpret results. The book emphasizes safe, reproducible procedures you can try at home or in a shop, with clear steps and illustrations.
Ideal for students, eyewear customers, and professionals seeking a practical reference on inspecting and adjusting spectacles.
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Anbieter: Forgotten Books, London, Vereinigtes Königreich
Paperback. Zustand: New. Print on Demand. This book explores the history and science of spectacles, tracing their evolution from ancient times to the late 19th century. It delves into the materials used in their construction, from early forms of glass to the refined techniques employed in lens grinding. The author expertly guides readers through the intricacies of spectacle fitting, emphasizing the importance of precise centering and the prismatic effect of decentering lenses. The book also examines different patterns of spectacles and eyeglasses, including the evolution of bifocal lenses, a testament to the ingenuity of inventors like Benjamin Franklin. The book offers a fascinating glimpse into the historical development of spectacles, revealing how these seemingly simple devices played a pivotal role in improving vision and enhancing lives. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781332330560_0
Anzahl: Mehr als 20 verfügbar
Anbieter: PBShop.store US, Wood Dale, IL, USA
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9781332330560
Anbieter: PBShop.store UK, Fairford, GLOS, Vereinigtes Königreich
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9781332330560
Anzahl: 15 verfügbar
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware. Bestandsnummer des Verkäufers 9781332330560
Anzahl: 2 verfügbar
Anbieter: Buchpark, Trebbin, Deutschland
Zustand: Sehr gut. Zustand: Sehr gut | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar. Bestandsnummer des Verkäufers 26089131/2
Anzahl: 1 verfügbar