The Computerized Evaluation Of A High Performance Aerial Reconnaissance Lens By A New Automated Lens Testing System

David E. Smith

doi:10.1117/12.935460

26 October 1983 The Computerized Evaluation Of A High Performance Aerial Reconnaissance Lens By A New Automated Lens Testing System

David E. Smith

Author Affiliations +

Proceedings Volume 0399, Optical System Design, Analysis, and Production; (1983) https://doi.org/10.1117/12.935460
Event: 1983 International Technical Conference/Europe, 1983, Geneva, Switzerland

Abstract

The Modulation Transfer Function (MTF) imaging properties of an aerial reconnaissance lens have been tested using a recently developed, highly automated OTF measuring system. Combining sophisticated software with knife-scanning technology, the instrument is the most advanced OTF system ever built. Based upon user entered lens-under-test properties and specified tolerance requirements, the measuring system automatically determined the image analyzer focusing increment, number of sampled points per image scan, scan velocity and signal filtering through the use of various algorithms and computational techniques. Using a novel coarse and fine focusing routine, the instrument determined the plane of best focus for both sagittal and tangential information. As a final summary report, it automatically quantified and displayed, both alphanumerically and graphically, the "best focus" OTF, thru-focus OTF, astigmatism and field flatness data. A discussion follows of this new system's attributes and profound impact on classical lens testing techniques.

Citation Download Citation

David E. Smith "The Computerized Evaluation Of A High Performance Aerial Reconnaissance Lens By A New Automated Lens Testing System", Proc. SPIE 0399, Optical System Design, Analysis, and Production, (26 October 1983); https://doi.org/10.1117/12.935460

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available