USA As Represented by Secretary of the Navy

US Government As Represented by the Secretary of the Army

Emagin Corporation

Russell S Draper

Ihor T Wacyk

Jay N Vizgaitis

Bruce M Pixton

Hyuk Sang Kwon

David Fellowes

An image rendering system comprising a pixel array and variable-density column and row scanner circuits is disclosed. The variable-density column and row scanner circuits enable software-based reconfiguration of the active display area within the available screen area of the display. In addition, a hardware restore-to-black function is provided that enables pixels outside of the desired image region to be driven to black without their requiring image data or excitation. As a result, the functionality of the functionality of the display can be reconfigured to match the desired image region on a frame-by-frame basis. Therefore, displays in accordance with the present invention can operate at higher frame rates and with less power consumption that prior-art displays.

Reconfigurable display and method therefor

An all-refractive optical system that images a scene at two different fields of view or FOVs, with switching between FOVs enabled by switchable lens elements is disclosed. The two fields of view vary in focal length by a factor of three. The wide FOV images broad-band Short Wave InfraRed SWIR radiation at an f/number of 1.7, while the narrow FOV images narrow-band illuminated SWIR at f/4.9. A voltage change across the switchable lens elements generates an optical power change between finite focus and infinite focus. Situated among static optical elements, the switching elements enable FOV changes with no mechanical movement. The given f/numbers at each FOV are a result of a fixed aperture in the system. The smaller throughput in the narrow FOV mode is augmented by narrow-band illumination of the scene to maintain equivalent sensor response between the two FOVs.

Dual field of view optics with non-mechanical switching

Growing community of inventors

Burke, VA, United States of America

Russell S Draper