Optical apparatus

• US 6,628,898 B2
• Filed: 08/29/2002
• Issued: 09/30/2003
• Est. Priority Date: 09/03/2001
• Status: Active Grant

• Current Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Original Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Inventors: Endo, Takayuki
• Primary Examiner(s): Perkey, W. B.
• Application Number:
  US10/230,122
• Publication Number:
  US 20030044174A1
• Time in Patent Office: 397 Days
• Field of Search: 396/52-55, 396/51, 348/208.99, 348/333.03, 348/333.09
• US Class Current: 396/51
• CPC Class Codes: G03B 2205/00 Adjustment of optical system relative to image or object surface other than for focusing
• CPC Class Codes: G03B 2217/005 Blur detection
• CPC Class Codes: G03B 5/00 Adjustment of optical system relative to image or object surface other than for focusing

Abstract

There is provided an optical apparatus includes a sensor for detecting vibration that is caused in the optical apparatus, a blur correction unit for correcting blur of an image obtained by the optical system, a control unit for controlling driving of the blur correction unit according to an output of the sensor, a finder for observing the image obtained by the optical system, the finder having an eyepiece optical system; and a display for displaying the image obtained by the optical system, in which the control unit changes a vibration detection frequency band depending on whether the finder is used or the display is used.

Claims

1. An optical apparatus having an optical system, comprising:

a sensor for detecting vibration that is caused in said optical apparatus;

a blur correction unit for correcting blur of an image obtained by said optical system;

a control unit for controlling driving of said blur correction unit according to an output of said sensor;

a finder for observing the image obtained by said optical system, said finder having an eyepiece optical system; and

a display for displaying the image obtained by said optical system,

wherein said control unit changes a vibration detection frequency band depending on whether said finder is used or said display is used.

2. An optical apparatus according to claim 1,

wherein said finder is an optical finder.

3. An optical apparatus according to claim 1,

wherein said finder is an electronic finder for observing the image displayed on said display via said eyepiece optical system.

4. An optical apparatus according to claim 1,

wherein, when said display is used, said control unit extends the vibration detection frequency band of said sensor to a frequency area lower than that at the time when said finder is used.

5. An optical apparatus according to claim 1, further comprising a detection unit for detecting whether or not a photographer has approached said finder,

wherein said control unit changes a control characteristic of said blur correction unit according to an output of said detection unit.

6. An optical apparatus according to claim 1, further comprising a switch for switching display and non-display states of said display,

wherein said control unit changes a control characteristic of said blur correction unit according to the state of said switch.