Reflective transparent screen having metal alloy thin film and concavo-convex structure
US11054559B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Jun 7, 2018 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | May 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/62
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A reflective transparent screen (1) capable of displaying an image light projected from a projector as an image to an observer who is on the same side as the projector, is provided with two transparent substrates and a metal thin film (23) sandwiched therebetween, wherein the color tone of the image light reflected from the metal thin film (23) or the image visibility is improved by adjusting the metallic composition of the metal thin film (23).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.