US 11,934,911 B2
Laser driving mode for aiming system of barcode imager
Vladimir Gurevich, Great Neck, NY (US); David Tsi Shi, Setauket, NY (US); Jason S. Mak, Commack, NY (US); Thomas Lackemann, Sayville, NY (US); and Matthew D. Blasczak, Shirley, NY (US)
Assigned to Zebra Technologies Corporation, Lincolnshire, IL (US)
Filed by ZEBRA TECHNOLOGIES CORPORATION, Lincolnshire, IL (US)
Filed on Oct. 12, 2021, as Appl. No. 17/499,690.
Prior Publication US 2023/0112765 A1, Apr. 13, 2023
Int. Cl. G06K 7/10 (2006.01); G06K 7/14 (2006.01)
CPC G06K 7/10554 (2013.01) [G06K 7/10881 (2013.01); G06K 7/1413 (2013.01); G06K 2007/10524 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A barcode imager comprising:
an imager configured to capture images over a field of view of the barcode imager each image is to be captured during a frame duration of the barcode imager;
an aiming assembly comprising a green laser source and configured to generate a green laser aiming pattern within the field of view of the barcode imager and comprising an emission having a wavelength within 495 nm-570 nm; and
a controller configured to control the green laser source to generate the green laser aiming pattern as a single aiming pulse per each frame duration and having a duty cycle over each frame duration that simultaneously satisfies a frame duration-independent, peak pulse optical power constraint and a frame duration-dependent heat dissipation constraint,
wherein the duty cycle of the aiming pulse is a non-overlapping duty cycle such that a sensor exposure window of the imager and the aiming pulse do not overlap during the frame duration.