See-through type display apparatus
US10908424B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2018 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | May 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1313
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A see-through type display apparatus includes an image forming unit; a relay optical system configured to transmit an image provided from the image forming unit and to form a primary imaging image; and an optical combiner configured to reimage the primary imaging image transmitted from the relay optical system and to form a multi-depth plane. The relay optical system includes a lens; a polarizer arranged at an angle with respect to an optical axis and configured to reflect light of light of a first polarization and transmit light of second polarization therethrough; a condensing mirror member configured to reflect and condense light incident from the polarizer; and a polarization converter configured to convert a polarization of light transmitted between the polarizer and the condensing mirror member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.