MusEYEum Online Catalogue

Helpful Hints for the Busy Optician
ARCHIVAL ITEMS
pamphlet
Bausch & Lomb
North America: USA, New York, Rochester
1949
paper
overall: 152 mm x 88 mm

Small pamphlet aimed at practitioners offering 'facts, formulae, hints and trade secrets'. 8th reprint of a publication first issued in 1926. Includes information on ophthalmic lenses including dioptre conversion tables, description of the B&L Thickness Caliper, transposition, B&L Lens Measure, B&L Vertometer, lens power and vertex refraction, cross cylinders, power of cylinders, B&L Automatic Cylinder Surfacing Machine, prisms, decentration, prescription lens grinding, B&L Abrasive Compound, polishing, taking off, care of the tools, B&L Lens drill, drilling, edging, B&L Automatic Double-Head Rimless Edger, bifocals, laying out a bifocal, bifocal briefs, glossary of optical terms, Index. Printed in black on 56 pages, with soft brown end papers, stapled.

2021.558