Apparatus for calibrating displacement of reflective parts in diffractive optical modulator
US7532319B2 · kind B2 · utility
0Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2008 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Mar 6, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0808
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed herein is an apparatus for calibrating the displacement of reflective parts in a diffractive optical modulator. The apparatus includes a diffractive optical modulator, a light intensity measurement unit, a projection unit, and display electronics. The light intensity measurement unit is disposed near one side of the diffractive optical modulator and measures and outputs the intensity of incident linear diffracted light having a predetermined diffraction order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.