US 10,310,145 B2Granted

Image acquisition system

AssigneeFotoNation Limited

InventorsPeter Corcoran, Petronel Bigioi, Christopher Dainty, Alexander Goncharov

Life of this patent

Estimating the term…

Loading patent…

Abstract

An image acquisition system for acquiring iris images for use in biometric recognition of a subject includes an optical system comprising a cluster of at least 2 lenses arranged in front of a common image sensor with each lens optical axis in parallel spaced apart relationship. Each lens has a fixed focus and a different aperture to provide a respective angular field of view. The lens with the closest focus has the smallest aperture and the lens with the farthest focus has the largest aperture so that iris images can be acquired across a focal range of at least from 200 mm to 300 mm.

Claims23

Dependent claims

An image acquisition system for acquiring iris images for use in biometric recognition of a subject, the system including an optical system comprising:

at least first and second lens systems each arranged in front of a common image sensor with each lens system including an optical axis in parallel spaced apart relationship to the optical axis of the other lens system, each lens system having a fixed focus, and a different aperture than the other lens system to provide a different angular field of view, each of the first and second lens systems comprising multiple optical elements, the first lens system having a closer focus and a smaller aperture than the second lens system, such that the image acquisition system can simultaneously acquire iris images across a focal range of at least from 200 mm to 300 mm.

Dependencies are inferred from the claim text.

Facts

Application: 15/257,735Filed 6 Sep 2016 · us provisional application
Priority: 9 Dec 2015
Published: US 2017/0168200 A115 Jun 2017
Granted: 4 Jun 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G02B 3/0043
Characterized by the distribution or form of lenses: inhomogeneous or irregular arrays, e.g. varying shape, size, height
G02B 3/0056
Characterized by the distribution or form of lenses: arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
G02B 27/0075
Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00: with means for altering, e.g. increasing, the…
G06V 40/19
Eye characteristics, e.g. of the iris: sensors therefor

Family

Application62/265,277Us provisional application · filed 9 Dec 2015
US 2017/0168200 A1Pre-grant publication · published 15 Jun 2017
US 10,310,145 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key