Imaging with frequency-modulated reticles

Jeffrey S. Sanders; Ronald G. Driggers; Carl E. Halford; Steven T. Griffin

doi:10.1117/12.55994

1 November 1991 Imaging with frequency-modulated reticles

Jeffrey S. Sanders, Ronald G. Driggers, Carl E. Halford, Steven T. Griffin

Author Affiliations +

Optical Engineering, Vol. 30, Issue 11, (November 1991). https://doi.org/10.1117/12.55994

Abstract

A novel imaging technique in which frequency-modulated retides encode different pixel locations by light modulation is presented. In this technique a reticle modulates different pixel locations at different frequencies, and photodetectors collect the resulting signals. Filters decode these signals to recreate the image on a display. The technique allows multiplexing many pixels onto a fewer number of detectors by utilizing the bandwidth of the detectors more effectively. Since frequency modulation creates an additional dimension for the detector, a single detector can function as a linear array, a linear array can function as a staring array, or the additional dimension can be used to convey spectral or other information. At wavelengths requiring expensive focal plane components, costs can be greatly reduced.

Citation Download Citation

Jeffrey S. Sanders, Ronald G. Driggers, Carl E. Halford, and Steven T. Griffin "Imaging with frequency-modulated reticles," Optical Engineering 30(11), (1 November 1991). https://doi.org/10.1117/12.55994

Published: 1 November 1991

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