US Patent 7791797 Peripheral filtering lens

Patent 7791797 was granted and assigned to The Aerospace Corporation on September, 2010 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

The Aerospace Corporation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7791797

Date of Patent

September 7, 2010

Patent Application Number

11541190

Date Filed

September 29, 2006

Patent Primary Examiner

‌

Stephone B. Allen

Patent abstract

A filter or lens for a star tracking telescope includes a clear center portion and an attenuating peripheral portion where the peripheral portion attenuation of off-axis images is nonidentical through any radial line extending from a center of the filter or lens to a circumference edge of the filter or lens for passing on-axis images with high signal to noise ratios and for attenuating off-axis images for attenuating but not completely blocking the off-axis images, which telescope with such a filter or lens is well suited for improved star tracking systems, and well suited for reducing off-axis glare in handheld optical apparatus such as binoculars, telescopes, cameras, and eyeglasses.