QUASI-MONOCENTRIC-LENS-BASED MULTI-SCALE OPTICAL SYSTEM

摘要

Optical systems based on an objective lens comprising one or more plastic lens elements are disclosed. The inclusion of plastic lens element reduces one or more of system cost, size, weight, and/or complexity. The chromatic performance of some imaging systems in accordance with the present invention is improved by incorporation of a diffractive surface into the entry surface of the objective lens.

主权项

1. An imaging system comprising an objective lens that is operative for providing a first image of a scene, the objective lens comprising:
a first lens element that includes a first polymer; a first surface, wherein each point on the first surface is equidistant from a center point of the objective lens; and a second surface that is a diffractive surface.