MODULAR LENS FOR EXTREMELY WIDE FIELD OF VIEW

摘要

A modular compound lens comprises an elementary unit with five powered optical elements capable of imaging a field of view of approximately 100 degrees with an F-number of 1.7. The compound lens exhibits image distortion of no more than 10% and a nearly diffraction limited modulation transfer function (MTF) of up to 100 line-pairs per millimeter. Additional optical components can be added to the compound lens to widen the field of view as desired without changing the F-number and without significant increase in image aberrations.

主权项

1. A compound lens, comprising:
a first primary powered optical element configured to collect and refract first light from a first field of view to yield first refracted light; a first secondary powered optical element configured to refract the first refracted light from the first primary optical element to yield second refracted light; and a combining component configured receive the second refracted light from the first secondary powered optical element and to direct the second refracted light to one or more downstream optical elements along an optical path of the compound lens, wherein the compound lens images a field of view of at least 100 degrees.