The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 2020
Filed:
Aug. 06, 2018
Hand Held Products, Inc., Fort Mill, SC (US);
Jie Ren, Jiangsu, CN;
Lin Wang, Jiangsu, CN;
Yuefeng Mo, Jiangsu, CN;
Chen Feng, Snohomish, WA (US);
Yunxin Ouyang, Jiangsu, CN;
Hui Li, Jiangsu, CN;
Jun Yin, Jiangsu, CN;
HAND HELD PRODUCTS, INC., Fort Mill, SC (US);
Abstract
An illuminator is provided, comprising a support frame arranged symmetrically around an optical axis of an optical sensor. The illuminator includes at least one light bar connected to the support frame. At least one light source is connected to the support frame, wherein each of the at least one light source is configured to direct light towards one of the opposing ends of one of the at least one light bar. The illuminator further includes a peripheral cover configured to receive light emitted from the front face of each of the at least one light bar. The peripheral cover is further configured to emit dark field illumination at a low incident angle with respect to a plane perpendicular to the optical axis and to emit bright field illumination at a high incident angle with respect to the plane perpendicular to the optical axis.