| US 7,480,086 B2 | ||
| High speed, high efficiency optical pattern generator using rotating optical elements | ||
| Leonard C. DeBenedictis, Palo Alto, Calif. (US); C. David Nabors, Sunnyvale, Calif. (US); and George Frangineas, Fremont, Calif. (US) | ||
| Assigned to Reliant Technologies, Inc., Mountain View, Calif. (US) | ||
| Filed on Sep. 04, 2007, as Appl. No. 11/849,745. | ||
| Application 11/339097 is a division of application No. 10/750790, filed on Dec. 31, 2003, granted, now 7,184,184. | ||
| Application 11/849745 is a continuation of application No. 11/339097, filed on Jan. 24, 2006, granted, now 7,265,884. | ||
| Prior Publication US 2008/0043306 A1, Feb. 21, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G02B 26/08 (2006.01) | ||
| U.S. Cl. 359—201 [359/209; 359/900] | 24 Claims |
| 1. An optical pattern generator that creates a pattern of figures on a target surface, the pattern generator comprising:
a first multi-faceted rotating optical element having a rotational axis and a plurality of facets with optical power that
rotate around the rotational axis, at least two of the facets having different optical power;
a second multi-faceted rotating optical element located downstream of the first optical element, the second optical element
having a rotational axis and a plurality of facets with optical power that rotate around the rotational axis, at least two
of the facets having different optical power; each facet with optical power on the first optical element having a corresponding
facet with optical power on the second optical element, the first and second optical elements counter-rotating through an
incident optical beam; and
one or more imaging optical elements that focus the optical beam, creating a pattern of figures on a target surface as the
optical elements counter-rotate through the optical beam.
|