Title:
LIGHT CONTROL FILM WITH TURNING FILM AND LENTICULAR DIFFUSER FOR VIEW ENHANCEMENT IN THE HORIZONTAL PLANE
Document Type and Number:
WIPO Patent Application WO/2020/129015
Kind Code:
A3
Abstract:
An optical system comprises a turning film and a lenticular diffuser. The lenticular diffuser comprises a structured surface comprising a plurality of microstructures each comprising a lenticular prism having linear end sections connected by a blend section separated by a substantially flat land area, wherein the blend section shape is a segment of an ellipse of 2nd, 4th or 6th order polynomial.
Inventors:
EMMONS ROBERT M (US)
EPSTEIN KENNETH A (US)
HUNT BRYAN V (US)
EPSTEIN KENNETH A (US)
HUNT BRYAN V (US)
Application Number:
PCT/IB2019/061204
Publication Date:
September 03, 2020
Filing Date:
December 20, 2019
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
G02B5/02; G02B5/04; G02B6/00; G02F1/13357
Domestic Patent References:
| WO2018129068A1 | 2018-07-12 | |||
| WO2009019989A1 | 2009-02-12 |
Foreign References:
| US20160187699A1 | 2016-06-30 | |||
| US20090180191A1 | 2009-07-16 | |||
| US20110234580A1 | 2011-09-29 |
Attorney, Agent or Firm:
FULTON, Lisa P., et al. (US)
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