Micro-optic device projecting multi channel projected imagery
US11046105B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Dec 31, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D25/378
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A micro-optic device, including: a substrate; a plurality of image elements in an image plane; and a plurality of focusing elements, each focusing element focusing light to a focal point on the image plane and magnifying any portion of an image element falling within the focal point to thereby produce an image pixel projected to a user at one or more viewing angles, the focal point having an extent smaller than the image element, wherein each image element includes an image sub-element having a different discernible level of brightness to elsewhere in the image element, the brightness of each projected image pixel being dependent on the proportion of the focal point filled with the image sub-element, and wherein each image sub-element has one or more attributes in the image plane, such that, from a given viewing angle, the brightness of each projected image pixel is dependent on each attribute of each image sub-element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.