Abstract

Because of their sensitivity to mechanical pressure, photographic emulsions will reproduce accurately surface contours pressed against them. This offers a new method for preparing high contrast transparent replicas for microscopy. Some photomicrograms of replicas which have been prepared in this way are reproduced here. The technique may find useful application in the microscopy of metallurgical and other opaque surfaces.

© 1948 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Influence of Pneumatic Pressure on the Photographic Sensitivity

Choong Shin-Piaw
J. Opt. Soc. Am. 34(5) 285-289 (1944)

The Photographic Grain

J. F. Hamilton
Appl. Opt. 11(1) 13-21 (1972)

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 (6)

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