Wide angle lens and camera system for peripheral field of view imaging
AssigneeOwl Labs, Inc.
InventorsMaksim Makeev, Mark S Schnittman, Thomas W Bushman, Sara Nagelberg, Susan Rico
Life of this patent
Estimating the term…
Abstract
Wide angle lens for imaging objects disposed away from the optical axis towards the periphery of the field of view including a surface having an obscuration disposed thereon to reduce the transmission of light therethrough, the obscuration being disposed about an optical axis extending through the wide angle lens.
Claims37
A wide angle lens for imaging objects disposed in a region of interest of the field of view, comprising in order along an optical axis from object to image space:
- a first group of lens elements, an aperture stop, and a second group of lens elements, wherein the first group of lens elements includes a first lens, the first lens including a surface having an obscuration disposed thereon to reduce the transmission of light therethrough, the obscuration being disposed about an optical axis extending through the wide angle lens, wherein the obscuration is absorptive to light wherein the surface of the first lens has a diameter and the obscuration has a diameter that is 25% to 60%, wherein an absorptive portion of the obscuration is disposed on the optical axis.
A wide angle lens for imaging objects disposed in a region of interest of the field of view, comprising in order along an optical axis from object to image space:
- a first group of lens elements, an aperture stop, and a second group of lens elements, wherein the first group of lens elements includes a first lens, the first lens including a surface having an obscuration disposed thereon to reduce the transmission of light therethrough, the obscuration being disposed about an optical axis extending through the wide angle lens, wherein the region of interest is an annular cone that extends between a first angle of at least 30 degrees from the optical axis to a second angle of at least 75 degrees from the optical axis, and wherein the first and second lens groups are configured for imaging of objects disposed within the region of interest.
Dependencies are inferred from the claim text.