Patent · US Active

Display glasses using meta-surface planar lens

US10761328B2 · kind B2 · utility

4Cited by
0References
19Claims
0Family size

Inventor

Key dates

Filing dateNov 6, 2017
Grant dateSep 1, 2020
Priority date—
Expiry dateSep 21, 2038

Classification

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

Abstract

Designs of display devices using one or more planar lenses are described. According to one aspect of the present invention, a planar lens includes at least a substrate and a plurality of nanosized studs. Depending on the implementation, the objects may be in different heights, spaced evenly or unevenly and oriented towards or outwards a focal point. When the planar lens is used with a lightguide guide that receives an image projected from a source, the image can be seen in the lightguide guide enlarged through the planar lens, provided that nanosized studs are properly structured, sized, oriented and arranged in a predefined pattern.

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