Title:
POLARIZED PROJECTION ILLUMINATOR
Document Type and Number:
WIPO Patent Application WO/2011/146267
Kind Code:
A3
Abstract:
The present disclosure relates generally to an optical element, a light projector that includes the optical element, and an image projector that includes the optical element. In particular, the optical element provides an improved uniformity of light by homogenizing the light with lenslet arrays, such as "fly-eye arrays" (FEA). The FEA is positioned to homogenize a polarized combined light after an unpolarized input light is converted to a single polarization state.
Inventors:
WATSON PHILIP E (SG)
YUN ZHISHENG (US)
OUDERKIRK ANDREW J (SG)
CHENG XIAOHUI (SG)
TAN KIM LEONG (SG)
TIO ANDREW T (SG)
YUN ZHISHENG (US)
OUDERKIRK ANDREW J (SG)
CHENG XIAOHUI (SG)
TAN KIM LEONG (SG)
TIO ANDREW T (SG)
Application Number:
PCT/US2011/035675
Publication Date:
April 12, 2012
Filing Date:
May 09, 2011
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
WATSON PHILIP E (SG)
YUN ZHISHENG (US)
OUDERKIRK ANDREW J (SG)
CHENG XIAOHUI (SG)
TAN KIM LEONG (SG)
TIO ANDREW T (SG)
WATSON PHILIP E (SG)
YUN ZHISHENG (US)
OUDERKIRK ANDREW J (SG)
CHENG XIAOHUI (SG)
TAN KIM LEONG (SG)
TIO ANDREW T (SG)
International Classes:
G02F1/13; G02B27/18; G03B21/20
Foreign References:
| US20040021832A1 | 2004-02-05 | |||
| US20060164726A1 | 2006-07-27 | |||
| JP2006064813A | 2006-03-09 | |||
| US20070182931A1 | 2007-08-09 |
Attorney, Agent or Firm:
HEITI, Robert V., et al. (Saint Paul, Minnesota, US)
Download PDF: