 |
|||
|
|
American Optical History
AO's Ophthalmic Lens Designers
|
|||
|
|
Honoring Dr. Estelle Glancy
Dr. Estelle Glancy
Dr. Glancy joined AO in 1916, and retired in 1948. She was hired in
1918 by Dr. Tillyer, who started with American Optical 2 years earlier.
Dr. Glancy was a mathematician worked closely with Doc Tillyer on numerous
AO lens designs, and was responsible for performing the many complex mathematical
calculations involved in ophthalmic optics. At the time, the extent of
her contributions may not have been fully understood by most. Her 1920
Patent on Progressive lenses was 50 years ahead of its time!
1920 Measurments on a Progressive Lens - Dr. Estelle Glancy
Dr. Estelle Glancy's 1924 AO US Patent on for a Progressive Lens
Dr. Glancy 1933 Patent
image re: Decentered Optical centers!
Dr.
Estelle Glancy Autobiographical account "Evolution of A Lens Designer"
- Sept 1952
Courtesy of Wellesley College
Rev Jan 2, 2003
Dr. Glancy's Wellsley College Yearbook entries
Dr. Glancy Background from 1948 Writeup
Dr. Glancy : AO News 1940 Article - PDF Format
Dr. Anna Estelle
Glancy - 30 years with AO (1948 AO Article) - PDF Format
The image of the writing above is Dr. Glancy's November 19, 1918 initials that she put on the lower right corner of the plot below. To those knowledgable in Opthalmic Lens Design, this plot is impressive for the date is was made. The notes at the top of the plot include one of the earliest references to Dr. Glancy and Dr. Tillyer's work together, where she notes:
"...the values of Des and Det have been calculated by E.D.T."
These values are the Sagittal and Tangential Power errors for a 30 degree eye rotation angle; the work behind this plot is the result of extensive mathematical hand calculations and is impressive indeed! It must have taken months to produce this plot. This plot is also of interest, as it illustrates the importance of selecting proper lens base curves to minimize off axis optical errors. Dr. Tillyer would later use this concept to revolutionize the industry.
Click here for a sample calculation page in Dr. Glancy's book. It is in the section of the book under Wellsworth lens calculations.
Fred Joslins
recalls Dr. Glancy's Advice to a young man
Dr.
Glancy's 1938 Junior Lensometer manual
New 3-Mar-08 (2.2 Mb pdf file)
To learn more about AO's technical contributions, check out the Optical Heritage Museum Website - AO Technical Documents
Womens Contibutions in the AO Factories
