Actuator calibration using a focus error signal
Номер патента: EP1908062A1
Опубликовано: 09-04-2008
Автор(ы): Andrew L. Van Brocklin, Darwin M. Hanks
Принадлежит: Hewlett Packard Development Co LP
Опубликовано: 09-04-2008
Автор(ы): Andrew L. Van Brocklin, Darwin M. Hanks
Принадлежит: Hewlett Packard Development Co LP
Реферат: A lens actuator (220) is calibrated by inputting a signal to the actuator (220) to cause the actuator (220) to move a lens (215) from a first location to a second location, sensing a focus error signal generated in response to the movement of the lens (215), determining a distance moved by the lens (215) in going from the first location to the second location from a predetermined characteristic of the focus error signal, and determining a gain of the actuator (220) from the input signal and the distance moved.
Actuator calibration using a focus error signal
Номер патента: WO2007008628A1. Автор: Andrew L. Van Brocklin,Darwin M. Hanks. Владелец: Hewlett-Packard Development Company, L.P.. Дата публикации: 2007-01-18.