Title:
IMAGE BLUR CORRECTING DEVICE
Document Type and Number:
Japanese Patent JP3629182
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an image blur correcting device which can resume the correction of an image blur in a short time even when a large image blur exceeding correctable range occurs.
SOLUTION: When an image blur in the horizontal axial direction is within a correctable range, the value of a driving target value V44a is set so that a correcting lens is driven to follow the image blur (S202). When the mage blur in the horizontal axial direction exceeds the correctable range, the value V44 is calculated so that the correcting lens is driven in direction toward a reference position with a specified time constant in the horizontal axial direction till the blur direction of the image blur is reversed (S218) and a digital rocking displacement value V4a is set so that the correcting lens is driven to follow the image blur displaced to the value V44a when the blur direction is reversed (S224). The driving amount of the correcting lens is calculated based on difference between the value V44a and the positional information of the correcting lens in the horizontal direction, and the correcting lens is driven.
Inventors:
Yukio Uenaka
Application Number:
JP2000108052A
Publication Date:
March 16, 2005
Filing Date:
April 10, 2000
Export Citation:
Assignee:
Pentax Co., Ltd.
International Classes:
G03B5/00; (IPC1-7): G03B5/00
Domestic Patent References:
| JP5066449A | ||||
| JP7261230A | ||||
| JP10282536A | ||||
| JP6308563A |
Attorney, Agent or Firm:
Takashi Matsuura
Previous Patent: PROGRAM DEVELOPMENT SUPPORT DEVICE
Next Patent: METHOD OF LIQUID-PHASE DIFFUSION JOINING FOR HIGH PROOF STRESS, HIGH-TOUGHNESS JOINT
Next Patent: METHOD OF LIQUID-PHASE DIFFUSION JOINING FOR HIGH PROOF STRESS, HIGH-TOUGHNESS JOINT