Lens unit and see-through type display apparatus including the same
US10866417B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 19, 2017 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Jul 31, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/294
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A see-through type display apparatus includes a see-through type optical system configured to transmit a first image via a first-path light, which is light traveling on a first path, to an ocular organ of a user, and a second image via a second-path light, which is light traveling on a second path, to the ocular organ of the user; and an incident light-dependent lens unit provided between the see-through type optical system and the ocular organ of the user and having different refractive powers according to characteristics of incident light, where the incident light-dependent lens unit has a positive first refractive power with respect to the first-path light and has a second refractive power different from the first refractive power with respect to the second-path light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.