Accession Number:

AD0773174

Title:

Development of Infrared Glass for Reconnaissance and Weapon Delivery.

Descriptive Note:

Final rept. 19 Jun 72-18 Sep 73,

Corporate Author:

TEXAS INSTRUMENTS INC DALLAS

Personal Author(s):

• Hafner,Harold C.

Report Date:

1974-01-01

Pagination or Media Count:

36.0

Abstract:

A process was developed for producing blanks of three selected glasses in sizes up to 10 inches diameter by 1 inch thick. The three glasses, As40Se60, Ge5S70As25, and Ge10S60As30, were selected on the bases of their optical dispersion characteristics, their resistance to devitrification, and their thermal stability. The refractive index versus wavelength from 1.0 to 12.0 micrometers was determined for all three glasses. MTF measurements were made to evaluate the optical homogeneity of the blanks produced. Author

Descriptors:

• *Infrared optical materials
• *Optical glass
• Arsenic compounds
• Selenides
• Germanium compounds
• Sulfides
• Arsenides
• Fabrication
• Casting
• Optical properties
• Refractive index
• Light scattering
• Density
• Annealing
• Resolution

Subject Categories:

• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE