US Government As Represented by the Secretary of the Army

Johnson and Johnson Vision Care, Inc.

USA As Represented by Secretary of the Navy

Bruce M Pixton

Jay N Vizgaitis

Russell T Spaulding

Gregory A Williby

John Edward Greivenkamp, Jr

Russell S Draper

John E Grievenkamp, Jr

Russell Spaulding

John E Greivenkamp

An optical system that images a scene at two different fields of view, with switching between fields of view enabled by switchable mirrored surface is disclosed. A voltage change across the switchable mirror element generates a change in the reflection and transmission properties of the element, such that the element switches between a mirror state and a lens state. When nested in an annular reflective optic system of a given field of view, the switching element enables the opening of an additional optical path through the center of the reflective optics where a set of refractive optics are assembled into an imaging system for a second field of view. This dual field-of-view system changes field of view with no mechanical movement.

Compact wide field-of-view optical imaging method capable of electrically switching to a narrow field of view

Dual field of view annular folded optics with switchable mirrored surface

An apparatus and method to improve the prescribing of customized ophthalmic corrections which contain higher order aberration. The apparatus enables the subjective measurement of higher order aberrations such as spherical aberration which can be used as part of the prescription for customized ophthalmic corrections.

Apparatus and method to obtain clinical ophthalmic high order optical aberrations

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

Woodbridge, VA, United States of America

Bruce M Pixton