Title:
TWO IMAGER PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/162939
Kind Code:
A3
Abstract:
The present disclosure describes optical elements and optical devices that use the optical elements to allow the output of two imagers to be combined onto a single optical axis. Each of the two imagers can be based on alternate polarization directions, and the disclosed embodiments can enable high contrast 3D projectors without requiring either time or polarization sequencing. The present disclosure further describes projection systems that include the optical devices.
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Inventors:
CARLS JOSEPH C (US)
SCHARDT CRAIG R (US)
PREISS DUANE E (US)
BALDWIN DWIGHT G (US)
SCHARDT CRAIG R (US)
PREISS DUANE E (US)
BALDWIN DWIGHT G (US)
Application Number:
PCT/US2013/036679
Publication Date:
December 19, 2013
Filing Date:
April 16, 2013
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
CARLS JOSEPH C (US)
SCHARDT CRAIG R (US)
PREISS DUANE E (US)
BALDWIN DWIGHT G (US)
CARLS JOSEPH C (US)
SCHARDT CRAIG R (US)
PREISS DUANE E (US)
BALDWIN DWIGHT G (US)
International Classes:
G03B21/00; G02B30/25
Domestic Patent References:
| WO2000063738A1 | 2000-10-26 | |||
| WO2000070386A1 | 2000-11-23 |
Foreign References:
| EP1647963A1 | 2006-04-19 | |||
| JP2003140087A | 2003-05-14 | |||
| US6328447B1 | 2001-12-11 |
Attorney, Agent or Firm:
HEITI, Robert V. et al. (Office of Intellectual Property CounselPost Office Box 3342, Saint Paul Minnesota, US)
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