Optical device and head-mounted display device and imaging device equipped with the same
US9857594B2 · kind B2 · utility
0Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2016 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Jan 29, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/294
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device includes a light-shielding layer and a microlens array. The light-shielding layer includes a plurality of openings. The microlens array is divided into a plurality of microlenses corresponding to the respective plurality of openings. A refractive index of the microlens array is variable so that light is incident on the microlenses is focused on the respective plurality of openings. A portion where light is focused includes a central position of the corresponding opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.