Apparatus, a method, and a computer program for automatic focusing

摘要

An apparatus (500) comprises: an image detector (122) for capturing an image frame (FN), a driving unit (200) for adjusting focusing of light onto said image detector (122), and a pulse generating unit (120), wherein said pulse generating unit (120) is configured to generate one or more synchronization pulses (S11, S12) based on the timing of optical exposure of a predetermined portion (TRIGLN) of said image frame (FN), and said driving unit (200) is configured to perform said adjusting based on the timing of said one or more synchronization pulses (S11, S12).

主权项

1. An apparatus comprising:
an image detector for capturing an image frame, a driving unit for adjusting focusing of light onto said image detector, and a synchronization signal generating unit, wherein said synchronization signal generating unit is configured to generate a synchronization signal corresponding to a start time of optical exposure of a predetermined portion of said image frame, and said driving unit is configured to initiate said adjusting based on a timing of said synchronization signal, and wherein said synchronization signal generating unit is further configured to generate a plurality of successive synchronization signals, and said apparatus further comprises a control unit configured to change a value of a delay parameter which specifies a time delay between said synchronization signals.