US 12,265,879 B2
Multi-functional optical illuminators
Chen Feng, Snohomish, WA (US); Jie Ren, SuZhou (CN); and Yunxin Ouyang, SuZhou (CN)
Assigned to Hand Held Products, Inc., Charlotte, NC (US)
Filed by Hand Held Products, Inc., Charlotte, NC (US)
Filed on Jan. 16, 2024, as Appl. No. 18/413,152.
Application 18/413,152 is a continuation of application No. 17/733,502, filed on Apr. 29, 2022, granted, now 11,907,800.
Application 17/733,502 is a continuation of application No. 16/614,182, granted, now 11,347,951, issued on May 31, 2022, previously published as PCT/CN2017/084624, filed on May 17, 2017.
Prior Publication US 2024/0152709 A1, May 9, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06K 7/10 (2006.01)
CPC G06K 7/10742 (2013.01) [G06K 7/10831 (2013.01); G06K 2207/1011 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A multi-function illuminator, comprising:
at least one of a plurality of bright field LEDs for generating bright field illumination and a plurality of dark field LEDs for generating dark field illumination;
a circuit board comprising at least one of the plurality of bright field LEDs and the plurality of dark field LEDs;
a light pipe, with an open frame structure, attached to the circuit board to transfer dual-field, multi-color, multi-directional illumination, wherein a front opening of the light pipe comprises chamfered light output ports at the front opening of the light pipe to provide illumination uniformity with optimized chamfer angle and chamfer surface texture to support emission of the dark field illumination in various orientations; and
a controller for controlling at least one of the plurality of bright field LEDs and the plurality of dark field LEDs, wherein the controller controls color combinations, intensities and orientations of at least one of the dark field illumination and the bright field illumination.