Automatic camera focusing device

G - Physics – 02 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G02B 7/09 (2006.01) G02B 7/36 (2006.01) G03B 13/36 (2006.01) H04N 5/232 (2006.01)

Patent

CA 2064528

An automatic focusing device includes a movable lens group by which movement a focused field of an object changes, a drive motor for moving the lens group, a luminance processing circuit for image sensing the object through the lens group to extract a luminance signal, an accumulating circuit for outputting a focusing evaluation value signal for evaluating a focal condition of the object on the basis of the extracted luminance signal, an LSC circuit for determining reliability of the outputted focusing evaluation value signal, and a control circuit for controlling the drive motor to improve the focal condition of the object on the basis of the determined reliability.

Dispositif de mise au point comprenant un groupe de lentilles mobiles, grâce au mouvement desquelles la mise au point d'un objet change, un moteur d'entraînement servant à déplacer le groupe de lentilles, un circuit de traitement de luminance pour capter l'image de l'objet à travers le groupe de lentilles afin d'extraire un signal de luminance, un circuit d'accumulation pour la sortie d'un signal d'évaluation de mise au point servant à évaluer la condition focale de l'objet en se fondant sur le signal de luminance extrait, un circuit LSC pour déterminer la fiabilité du signal d'évaluation de mise au point, et un circuit de commande du moteur d'entraînement afin d'améliorer la condition focale de l'objet sur la base de la fiabilité déterminée.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Automatic camera focusing device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic camera focusing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic camera focusing device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1993488

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.