Patent · US Active

Systems, devices, and methods for aligning a diffractive element in a wearable heads-up display

US11099394B2 · kind B2 · utility

0Cited by
1References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 14, 2020
Grant dateAug 24, 2021
Priority date—
Expiry dateJan 14, 2040

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B2027/0178
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Systems, devices, and methods for aligning a diffractive element in a wearable heads-up display (“WHUD”) are described. A WHUD that includes a projector, a transparent combiner, a WHUD frame, and a diffractive optical element (DOE) embedded in the transparent combiner, requires alignment between the DOE and the eye of the user and/or the projector. A WHUD includes a DOE aligned with an eye of a user when the WHUD is worn on the head of the user. A method of aligning a DOE in a WHUD with an eye of a user when the WHUD is worn on a head of a user includes aligning a first part of the WHUD frame with a first part of the face of the user, and aligning the DOE with a second part of the WHUD frame.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.