Dynamic display projection lamp with multiple projection units
US10440308B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2018 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Mar 21, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A dynamic display projection lamp of the present invention includes plural projection units fixed to a fixing assembly. The fixing assembly includes a lens holder and a film holder for fixing a film. A plurality of penetrating holes are defined in the lens holder, and clamping grooves for clamping plural lenses of plural lens groups are formed in inner walls defining the penetrating holes. The film holder is fixed in the lens holder or at least a portion of the film holder is inserted between the lenses through an opening of the lens holder. All the projection units disposed in a single row or two rows up and down are fixed by using the lens holder and the film holder. The projection units are allowed to project patterns in sequence by using a controller, thus producing a dynamic pattern projection effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.