Observation Devices
Abstract
The document establishes test methods and techniques for testing non-electric optical instruments, such as observation telescopes or binoculars, which are designed to enable the user to see distant objects not clearly visible with the unaided eye.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 29, 1972
- Accession Number
- AD0754832
Entities
People
- Paul W. Lavendar