Abstract

A new type of luminescence microscope is described. Its use in the examination and comparison of materials luminescing under electron bombardment in vacuum is explained. Fields of self-luminous particles are obtained of sufficient brightness to permit of satisfactory visual observation at magnifications up to 500×. Good photomicrographs can be made at 100× with ordinary film. In the study of manganese-activated calcium silicates, this microscope has facilitated the determination of many of the relationships which exist between color of luminescence, intensity of luminescence and crystal form. The low temperature form of calcium metasilicate luminesces more brightly than any other calcium silicate studied. A thorough wet mixing of raw materials is necessary to obtain a product of uniform luminescence.

© 1936 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Effect of Oxygen Upon the Photoelectric Thresholds of Metals

H. C. Rentschler and D. E. Henry
J. Opt. Soc. Am. 26(1) 30-34 (1936)

On the Quantitative Use of the Foucault Knife-Edge Test

E. Gaviola
J. Opt. Soc. Am. 26(4) 163-169 (1936)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (2)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription