Optical stack for panoramic optical device
US9939619B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2014 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Sep 2, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/698
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A panoramic optical device includes a quadric reflector, a mirror, and a set of one or more optical elements. The quadric reflector has a conical shape, which tapers from a wide base to an apex. The apex includes an aperture. The mirror is positioned within the device in a plane approximately parallel to a circular cross section of the conical shape. The mirror reflects environmental light that is reflected by the quadric reflector into the aperture or reflecting light emitting from the aperture onto the quadric reflector. The set of one or more optical elements are positioned at least partially within a volumetric region of the quadric reflector. The one or more optical elements focus light passing through the aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.