Invention Application
- Patent Title: Curved retarder-based optical filters
- Patent Title (中): 基于弯曲阻尼器的滤光器
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Application No.: US14216561Application Date: 2014-03-17
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Publication No.: US20140373997A1Publication Date: 2014-12-25
- Inventor: David A. Coleman , Gary D. Sharp
- Applicant: RealD Inc.
- Applicant Address: US CA Beverly Hills
- Assignee: RealD Inc.
- Current Assignee: RealD Inc.
- Current Assignee Address: US CA Beverly Hills
- Main IPC: B29D11/00
- IPC: B29D11/00

Abstract:
Curved polarization filters and methods of manufacturing such filters are described in the present disclosure. An exemplary method includes laminating a planar polarization layer to a planar retarder layer at a predetermined orientation and bending the laminate to create a curved filter. The strain on the retarder layer results in stress-induced birefringence, and the predetermined orientation of the retarder substantially compensates for the stress-induced birefringence. In some embodiments, the predetermination is based on mathematical models. In some other embodiment, the predetermination is based on experimental data.
Public/Granted literature
- US09457523B2 Curved retarder-based optical filters Public/Granted day:2016-10-04
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