Rapid Real-Time MTF Measurements In A Field Environment

D. Kelsall

doi:10.1117/12.953992

1 June 1974 Rapid Real-Time MTF Measurements In A Field Environment

D. Kelsall

Author Affiliations +

Proceedings Volume 0046, Image Assessment and Specification; (1974) https://doi.org/10.1117/12.953992
Event: Image Assessment and Specification, 1974, Rochester, United States

Abstract

It was first shown by H. H.Hopkins that the optical transfer function can be directly measured by means of a shearing interferometer. With the advent of lasers in the past ten years, and the need for very high-quality optics both in the laboratory and in field environments, the interferometric technique appears to be ideally suited to single-wavelength measurements. Several laboratory-type interferometers have been described in the literature,2-'7 although in most cases these instruments were not suitable for either routine optical testing or for field use. More recently, a cornercube shearing interferometer was constructed for making MTF measurements on board a KC-135 jet aircraft.8 However, all these past instruments were relatively slow. Very rapid real-time OTF measurements are required in field environments. A new rapid-scanning interferometer has been developed, which requires no adjustments in use and is extremely stable, even in environments where large vibrations are encountered.

Citation Download Citation

D. Kelsall "Rapid Real-Time MTF Measurements In A Field Environment", Proc. SPIE 0046, Image Assessment and Specification, (1 June 1974); https://doi.org/10.1117/12.953992

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