Accession Number : ADA289076

Title :   Office of Naval Research, Arlington, Virginia . Monthly Status Report. November 1-30, 1994.

Corporate Author : OFFICE OF NAVAL RESEARCH ARLINGTON VA

PDF Url : ADA289076

Report Date : 30 NOV 1994

Pagination or Media Count : 3

Abstract : Many optical computing problems are centered around the processing of incoherent images. These images may be conventional visible light such as those taken with a CCD imager or camcorder. They may also take the form of infrared images in the case of missile seekers or x-ray images from medical or other sources. For optical processing, these images must be converted to either phase or amplitude modulated coherent light. This is typically accomplished by electronically feeding the originally captured image into a spatial light modulator (e.g., liquid crystal or deformable mirror array) and modulating a coherent reference beam with the 2 dimensional data pattern. The electrical input to the SLM creates a data flow bottleneck in the optical processing system due to the inherently serial input architecture. SMD has proposed a novel incoherent to coherent image converter which solves this problem by providing a massively parallel, optical input feed capability. The proposed architecture utilizes a novel combination of micromachining and ultra-thinned wafer technology to achieve an integrated incoherent to coherent image converter. The converter is capable of directly converting UV, IR, visible, and x-ray energy to a coherent light representation allowing for maximum utilization of downstream optical processing.

Descriptors :   *OPTICAL PROCESSING, MIRRORS, DATA PROCESSING, INPUT, SPATIAL DISTRIBUTION, OPTICAL EQUIPMENT, OPTICS, VIRGINIA, MACHINING, PROCESSING, DEFORMATION, ENERGY, COHERENCE, LIGHT, ARRAYS, X RAYS, ELECTRICAL PROPERTIES, INCOHERENCE, COHERENT OPTICAL RADIATION, INFRARED IMAGES, IMAGES, LIQUID CRYSTALS, HOMING DEVICES, FLOW, FEEDING, UTILIZATION, BEAMS(RADIATION), GUIDED MISSILE COMPONENTS, LIGHT MODULATORS, AMPLITUDE MODULATION, IMAGE CONVERTERS.

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE