Short-distance optical amplification module and near-eye display optical module using the same
US9690097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Oct 14, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/013
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A short-distance optical amplification module and a near-eye display optical module using the same in the present invention relates to an optical amplification module applicable for short distance and an optical module using the same for near-eye display. The purpose of the present invention is to provide an optical amplification module for large-multiple amplification within a short distance (less than 5 cm) and a near-eye display optical module using the same to achieve super large field of view within a short distance (less than 3 cm). The short-distance optical amplification module in the present invention comprises a first 45 degree phase delay sheet (2), a partial-transmission and partial-reflection curved lens (4), a second 45 degree phase delay sheet (5) and a reflective polarizing sheet (6) which are sequentially arranged. The near-eye display optical module in the present invention comprises a display screen (1) disposed on the side of the first 45 degree phase delay sheet (2) away from the partial-transmission and partial-reflection curved lens (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.