1991 Photomicrography Competition

Printed circuit board, glass fibers in resin matrix

Fred Espinosa

Affiliation
United Technologies Research Center
East Hartford, Connecticut, USA
Technique
Polarized Light
Magnification
200x

Canine epithelium with compound hair follicles

James E. Hayden

Affiliation
University of Pennsylvania
School of Veterinary Medicine
Philadelphia, Pennsylvania, USA
Technique
Darkfield
Magnification
39x

Corrosion site on a metallic thin film

Rodney Rappe

Affiliation
3M Corporation
Vadnais Heights, Minnesota, USA
Technique
Darkfield
Magnification
50x