Her Majesty the Queen in Right of Canada, As Represented by the Minister

Minister of National Defence

Paul C Chevrette

Jean Fortin

Joseph G Montminy

An dithering system for implementation of a microscan that dithers an image on an array of sensing elements that defines an image plane by moving one or more lenses which displaces the image focused on the image plane. Piezoelectric positioners are provided to move the one or more lenses a predetermined amount and on a predetermined plane parallel to the image plane so that the image focused by the lensing system on the array of sensing elements is displaced on the image plane by the movement of the lensing system. As the lens is moved by the positioners and thus the optical axis of the lens, the image passing through the lens is also moved on the image plane. Moving the lens horizontally and vertically or in a predetermined pattern provides dithering of the image so that microscanning can be employed.

Apparatus for dithering

An imaging system for implementation of a microscan includes an array of sensing elements that define an image plane. A movable lensing system is adapted to focus an image on the image plane. Piezoelectric positioners are provided to move the lensing system a predetermined amount and on a predetermined plane parallel to the image plane so that the image focused by the lensing system on the array of sensing elements is displaced on the image plane by the movement of the lensing system. As the lens is moved by the positioners and thus the optical axis of the lens, the image passing through the lens is also moved on the image plane. Moving the lens back and forth or in a predetermined pattern provides dithering of the image so that microscanning can be employed.

Method and system for fast microscanning

A testing system for measuring and evaluating the performance of electro-optical systems. The system under test is operated with the optics and electronics functioning in its normal manner. To simulate the type of signal produced by a test object under normal conditions an ideal bar signal is modified to represent normal signal degradation in the components in accordance with the previously measured impulse response of the electro-optical system. This degraded signal is then added at a particular point in the electro-optical system. The simulated signal can be varied in a controlled manner and observer responses noted.

Growing community of inventors

Neufchatel, Canada

Paul C Chevrette