Integrated opto-electronic device and portable reflective projection system
US8220930B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2009 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Aug 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136277
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrated opto-electronic device, a portable reflective projection system and a method for in situ monitoring and adjusting light illumination are provided. The device includes a reflective polarizing composite film (150) configured to receive a source light (210) at a desired non-normal incident angle (221), polarizes and reflects a first portion (211) of said source light (210) as polarized illumination light (16) at a reciprocal angle (222) to said desired non-normal incident angle (221); and a photovoltaic cell (180), adhered to an opposite side of said reflective polarizing composite film (150) to said source light (210), configured to receive a second portion (212) of said source light (210) that passes through said reflective polarizing composite film (150) and transform said second portion (212) to photogenerated charge. Unused illumination can be collected in order to re-store and reuse recovered energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.