Glasses for protecting eyes from injurious radiations[3rd ed.] . PRICE, 10 CENTS Sold only by the Superintendent of Documents, Government Printing OfficeWashington, D. C. WASHINGTONGOVERNMENT PRINTING OFFICE 1919 Bureau of StandardsJUL 8 1926 m GLASSES FOR PROTECTING THE EYES FROMINJURIOUS RADIATIONS By W. W. Coblentz and W. B. Emerson CONTENTS Page I. Introduction 3 Transmission of the ocular media 5 II. Yellow-colored glasses 6 III. Crookess glasses 6 Sage-green glass 7 Neutral-tinted glass 7 IV. Various glasses for absorbing the infra-red 9 Gold-plated glasses 9 Blue-green glasses (heat abs
Glasses for protecting eyes from injurious radiations[3rd ed.] . PRICE, 10 CENTS Sold only by the Superintendent of Documents, Government Printing OfficeWashington, D. C. WASHINGTONGOVERNMENT PRINTING OFFICE 1919 Bureau of StandardsJUL 8 1926 m GLASSES FOR PROTECTING THE EYES FROMINJURIOUS RADIATIONS By W. W. Coblentz and W. B. Emerson CONTENTS Page I. Introduction 3 Transmission of the ocular media 5 II. Yellow-colored glasses 6 III. Crookess glasses 6 Sage-green glass 7 Neutral-tinted glass 7 IV. Various glasses for absorbing the infra-red 9 Gold-plated glasses 9 Blue-green glasses (heat absorbing) 9 Greenish-brown glasses • 10 Black glasses 11 Noviweld glasses 12 V. Miscellaneous glasses 14 VI. Summary 20 Appendix: Transmission data of various 23 I. INTRODUCTION The object in preparing this paper is to meet the demand forgeneral information concerning the protective properties of spec-tacle glasses, particularly glasses which shield the eye from infra-red or so-called heat rays. Although it does not appear to be definitely proven tha
Size: 1587px × 1574px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcoblentz, bookcentury1900, bookdecade1910, bookyear1919
