Optical module with variable light-transmission area and electronic apparatus using the optical module
US10027899B2 · kind B2 · utility
2Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2015 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Feb 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical module that achieves an adjustable aperture with a multilayer liquid crystal diaphragm, and an electronic apparatus using the optical module are described. The optical module includes at least one diaphragm layer having a light-transmission area that is fully transmissive and a variable light-transmission area filled with material having variable transmittance; and an electrode unit for applying an adjustment voltage to the at least one diaphragm layer. Transmittance of the variable light-transmission area varies in accordance with the adjustment voltage applied by the electrode unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.