Image pickup apparatus with focusing lens control device

Details Image pickup apparatus with focusing lens control device Image pickup apparatus with focusing lens control device

2006-02-28

2006-02-28

Vu, Ngoc-Yen (Department: 2612)

Television

Camera, system and detail

Optics

C348S351000, C348S357000

Reexamination Certificate

active

07006139

ABSTRACT:
A lens control apparatus and an image pickup apparatus each of which, during a magnification varying operation in an inner focus type of lens system, predicts a destination position to be reached by a variator lens after a predetermined time period, calculates a speed at which to move a focusing lens to a correction position of a focal plane relative to the predicted position of the variator lens, and controls the focusing lens.

REFERENCES:
patent: 5212598 (1993-05-01), Kikuchi
patent: 5287223 (1994-02-01), Hirasawa
patent: 5323200 (1994-06-01), Hirasawa
patent: 5587842 (1996-12-01), Iijima et al.
patent: 5949586 (1999-09-01), Hirasawa et al.
patent: 6184931 (2001-02-01), Kaneda

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