Optical device possessing means for the precise assembly thereof, assembly or test method for the device
US11231551B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2018 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Jan 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/62
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device is formed of a plurality of optical parts arranged on a carrier, at least one optical element of which has a main face provided with a first microstructured zone for intercepting incident luminous radiation propagating along a first determined optical path, the first microstructured zone spatially modifying the phase of the incident luminous radiation according to a determined spatial profile. The first microstructured zone is used to form, via a plurality of reflections or transmissions off/through the one or more optical elements, transformed luminous radiation. The optical device comprises an input stage for guiding the injection of positioning luminous radiation, along a second optical path, and the main surface of the optical element includes a second microstructured zone that is configured to reflect the positioning luminous radiation and to back-propagate the positioning radiation along the second optical path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.