Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Objective lens having two aspheric surfaces and a phase shifter and optical device including the same

Objective lens having two aspheric surfaces and a phase shifter and optical device including the same

US Patent 7283452 · Granted Oct 16, 2007

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Imaging lens2009
Objective lens and optical device2003
Optical device2001
Optical device for recording or reading data to an optical disk2000
Optical pick-up, optical data recording apparatus and objective lens for optical1998
Head-up display and a combiner used to control diffraction of light including a 1995
Apparatus for measuring length of visual line length, depth of anterior chamber,1991
Light wave range finder1991
Method and apparatus for finding range1990
Integrated-photocircuit interferometer1990
Light interferometer1990
Method and apparatus for setting a gap between first and second objects to a pre1989