| US 7,458,688 B2 | ||
| Prism | ||
| Scott Lerner, Corvallis, Oreg. (US); and Anurag Gupta, Corvallis, Oreg. (US) | ||
| Assigned to Hewlett-Packard Development Company, L.P., Houston, Tex. (US) | ||
| Filed on Apr. 08, 2005, as Appl. No. 11/101,819. | ||
| Prior Publication US 2006/0227294 A1, Oct. 12, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G03B 21/00 (2006.01); G03B 21/28 (2006.01) | ||
| U.S. Cl. 353—33 [353/81] | 22 Claims |
| 1. A projection assembly, comprising:
a prism including a first internal reflection interface, and a second internal reflection interface, wherein said second internal
reflection interface crosses through said first internal reflection interface and said first internal reflection interface
crosses through said second internal reflection interface, and
a light modulator panel configured to modulate light received from said prism into display and non-display light
wherein said first internal reflection interface is configured to reflect light from a light source to said light modulator
panel and to transmit said display light from said light modulator panel, and said second internal reflection interface is
configured to transmit said display light and said light from said light source and to reflect said non-display light.
|