US 7,573,011 B2
Zoom module using actuator and lead screw with translating operation
Lothar Westerweck, San Jose, Calif. (US); Wolfram Grziwa, Amherst, N.H. (US); Klaus Raschke, Weston, Fla. (US); Alexander Raschke, Weston, Fla. (US); and John Toor, Palo Alto, Calif. (US)
Assigned to Flextronics AP, LLC, Broomfield, Colo. (US)
Filed on Aug. 03, 2007, as Appl. No. 11/888,979.
Application 11/888979 is a continuation in part of application No. 11/514811, filed on Sep. 01, 2006.
Claims priority of provisional application 60/836616, filed on Aug. 08, 2006.
Claims priority of provisional application 60/715533, filed on Sep. 08, 2005.
Prior Publication US 2008/0074528 A1, Mar. 27, 2008
Int. Cl. G02B 7/04 (2006.01)
U.S. Cl. 250—201.2  [250/239] 23 Claims
OG exemplary drawing
 
1. An optical module, comprising:
a) a first optics group coupled to a first lead screw so that translation of the first lead screw results in translation of the first optics group along an axis parallel to the first lead screw;
b) a first actuator for translating the first lead screw;
c) a first sensing target configured to permit detection of translation of the first lead screw;
d) a second optics group coupled to a second lead screw so that translation of the second lead screw results in translation of the second optics group along an axis parallel to the second lead screw;
e) a second actuator for translating the second lead screw;
f) a second sensing target configured to permit detection of translation of the second lead screw; and
g) an image sensor.