Title :
Smart adaptive optic systems using spatial light modulators
Author :
Clark, Natalie ; Banish, Michele ; Ranganath, Heggere S.
Author_Institution :
Phillips Lab., Kirtland AFB, NM, USA
fDate :
5/1/1999 12:00:00 AM
Abstract :
Many factors contribute to the aberrations induced in an optical system. Atmospheric turbulence between the object and the imaging system, physical or thermal perturbations in optical elements degrade the system´s point spread function, and misaligned optics are the primary sources of aberrations that affect image quality. The design of a nonconventional real-time adaptive optic system using a micro-mirror device for wavefront correction is presented. The unconventional compensated imaging system presented offers advantages in speed, cost, power consumption, and weight. A pulsed-coupled neural network is used to as a preprocessor to enhance the performance of the wavefront sensor for low-light applications. Modeling results that characterize the system performance are presented
Keywords :
aberrations; adaptive optics; atmospheric optics; micro-optics; mirrors; optical design techniques; optical neural nets; optical transfer function; real-time systems; spatial light modulators; wavefront sensors; aberrations; atmospheric turbulence; low-light applications; micro-mirror device; misaligned optics; nonconventional real-time adaptive optic system; physical perturbations; point spread function; power consumption; pulsed-coupled neural network; smart adaptive optic systems; spatial light modulators; thermal perturbations; unconventional compensated imaging system; wavefront correction; wavefront sensor; Adaptive optics; Atmospheric waves; Image quality; Optical computing; Optical design; Optical imaging; Optical modulation; Optical sensors; Real time systems; Thermal degradation;
Journal_Title :
Neural Networks, IEEE Transactions on