09224022 is referenced by 128 patents and cites 268 patents.

An autofocus lens system includes no conventional moving parts and has excellent speed and low power consumption. The system includes a small electronically-controlled focusing-module lens. The focusing-module lens includes two adjustable polymeric surfaces (e.g., two adjustable-surface lenses in a back-to-back configuration). The curvature of the surfaces can be adjusted to change focus. The performance of the autofocus lens system is extended by adding a conventional first and second lens, or lens group, on either side of the focusing-module lens. What results is an autofocus lens system with excellent near field and far field performance.

Title
Autofocus lens system for indicia readers
Application Number
14/264173
Publication Number
9224022 (B2)
Application Date
April 29, 2014
Publication Date
December 29, 2015
Inventor
Alain Gillet
Toulouse
FR
H Sprague Ackley
Seattle
WA, US
Agent
Additon Higgins & Pendleton P A
Assignee
Hand Held Products
SC, US
IPC
G02B 15/00
G02B 7/09
G06K 7/10
G02B 9/00
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