Prism and Lens Making, Second Edition: A Textbook for Optical Glassworkers
Prism and Lens Making: A Textbook for Optical Glassworkers, Second Edition is a unique compendium of the art and science of the optical working of glass for the production of mirrors, lenses, and prisms. Incorporating minor corrections and a foreword by Professor Walter Welford FRS, this reissue of the 1957 edition provides a wealth of technical information and hands-on guidance gained from a lifetime of experience. Although some of the techniques have been replaced by more modern methods, this classic book is still a valuable source of practical assistance as well as being a pleasure to read.
About the Author
Frank Twyman was a skilled craftsman in all aspects of optics. He joined Otto Hilger in 1898 to work on the production of simple spectroscopes costing less than £10 each. After the death of Otto Hilger, Twyman became Managing Director of Adam Hilger Ltd., a company known for the finest quality optical and mechanical work. He worked here from 1902 to 1946 and was very concerned with the practical aspects of instrument making; he designed many of the instruments himself and constantly strove to improve the techniques of optical grinding and polishing. In 1916 Twyman and Alfred Green, the foreman of the Hilger optical shops, patented the now-famous prism and lens testing interferometer that bears their names. Twyman also undertook fundamental studies in the annealing process for glass and invented new spectrophotometers and spectrographs.
What people are saying - Write a review
We haven't found any reviews in the usual places.
SINGLE SURFACE WORKING
THE NATURE OF GRINDING AND POLISHING
TOOLS AND MATERIALS IN GENERAL USE
PRODUCTION OF LENSES IN QUANTITY
THE MANUFACTURE OF SPECTACLE LENSES
THE HILCER INTERFEROMETERS FOR TESTING PRISMS
ANNEALING AND NORMALIZING
LARGE OBJECT GLASSES AND MIRRORS
REFERENCE BOOKS ON OPTICS AND OPTICAL GLASSWORKING
iii The present state and future trends of the manufacture
iv Glossary of terms used in the optical industry
TESTING OPTICAL WORK
abrasive accuracy adjustment amount angle annealing temperature aperture astigmatism axis balsam beeswax bifocals block Canada balsam carborundum cement centre chuck clean coating colour concave convex cooling correct crown crown glass crystals curvature curve described diameter diamond disc edge effect emery error film flat flint focus fringes glass surface graticule grinding and polishing hardness heat Hilger & Watts inch instrument interferometer lens lenses light manufacture material measured melting metal method microscope minutes mirror moulding Newton's rings object glass obtained optical glass optician oxide parallel pitch plane plate polishing powder prism produced putty powder radius reflected refractive index removed rhodium ring rotation rouge Schmidt camera scratches screw shape shown in Fig silica silver smoothing sodium nitrate speculum metal spherical aberration spherometer spindle strain suitable telescope thickness tool tube Twyman viscosity wavelength