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:
Dec. 14, 2021
Filed:
Apr. 22, 2020
Yutou Technology (Hangzhou) Co., Ltd., Hangzhou, CN;
Kaikai Guo, Hangzhou, CN;
YUTOU TECHNOLOGY (HANGZHOU) CO., LTD., Hangzhou, CN;
Abstract
The present invention relates to a virtual image distance measurement method, apparatus and device. The method includes: disposing a light blocking element, a lens element and an imaging element along the optical axis of the lens element in sequence, wherein a light transmitting portion is formed on the light blocking element, and the virtual image position of a measured near-eye display does not coincide with the imaging position of the lens element; presenting, by a virtual image of the measured near-eye display, multiple images on the imaging element after passing through the light blocking element and the lens element; and determining a distance measurement parameter based on the multiple images, and substituting the distance measurement parameter into a preset distance calculation formula to obtain a virtual image distance.