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Class Information
Number: 396/93
Name: Photography > With exposure objective focusing means, focusing aid, or rangefinding means > Lens characteristic compensating > By modifying electric focus or drive signal
Description: Subject matter including means to correct the data of a focus condition signal of the exposure objective in accordance with a desired in-focus condition signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7412159 |
Image pickup apparatus and defocus amount correction value calculation method |
Aug. 12, 2008 |
| 7391463 |
Image sensing apparatus having distance measuring unit and control method thereof |
Jun. 24, 2008 |
| 7262804 |
Autofocus camera adjusting focus lens position based on illumination characteristics |
Aug. 28, 2007 |
| 7116502 |
Optical apparatus |
Oct. 3, 2006 |
| 6972797 |
Automatic focusing device and the electronic image pickup apparatus using the same |
Dec. 6, 2005 |
| 6822686 |
Lens control apparatus |
Nov. 23, 2004 |
| 6813442 |
Autofocus system and camera system |
Nov. 2, 2004 |
| 6097897 |
Camera |
Aug. 1, 2000 |
| 6088537 |
Focus detecting device |
Jul. 11, 2000 |
| 5880890 |
Optical system having a focal point detection device |
Mar. 9, 1999 |
| 5854948 |
Photographic lens focusing system and method which compensates for size of aperture |
Dec. 29, 1998 |
| 5838374 |
Autofocus video camera that can compensate for variation in the amount of load on a mobile unit of a linear motor in a focus operation |
Nov. 17, 1998 |
| 5745804 |
Automatic focus device |
Apr. 28, 1998 |
| 5717965 |
Photometry device and camera with photometry device |
Feb. 10, 1998 |
| 5698841 |
Optical apparatus having a focus detecting device with decentration position detection |
Dec. 16, 1997 |
| 5630180 |
Camera system |
May. 13, 1997 |
| 5347340 |
Camera having a focus detection device and interchangeable lens |
Sep. 13, 1994 |
| 5231443 |
Automatic ranging and automatic focusing |
Jul. 27, 1993 |
| 5179407 |
Automatic focusing device |
Jan. 12, 1993 |
| 5148209 |
Passive ranging and rapid autofocusing |
Sep. 15, 1992 |
| 5146261 |
Automatic focusing camera |
Sep. 8, 1992 |
| 5122826 |
Focusing control apparatus with aberration compensation |
Jun. 16, 1992 |
| 4952962 |
Automatic focusing device |
Aug. 28, 1990 |
| 4945376 |
Camera having interchangeable lenses |
Jul. 31, 1990 |
| 4931820 |
Auto-focus camera |
Jun. 5, 1990 |
| 4912494 |
Camera system |
Mar. 27, 1990 |
| 4912493 |
Camera system |
Mar. 27, 1990 |
| 4901101 |
Automatic focus control device for use in a camera system |
Feb. 13, 1990 |
| 4890133 |
Autofocus camera |
Dec. 26, 1989 |
| 4842387 |
Automatic focusing apparatus for use in video camera and the like |
Jun. 27, 1989 |
| 4841322 |
Camera having interchangeable lenses |
Jun. 20, 1989 |
| 4835561 |
Focus detecting device for camera |
May. 30, 1989 |
| 4812868 |
Detecting apparatus for focus in camera |
Mar. 14, 1989 |
| 4748321 |
Focus detection device with wavefront aberration correction |
May. 31, 1988 |
| 4737813 |
Automatic focus control device for use in a camera system |
Apr. 12, 1988 |
| 4690537 |
Lens Barrel |
Sep. 1, 1987 |
| 4571047 |
TTL Focus detecting device for single-lens reflex camera |
Feb. 18, 1986 |
| 4537487 |
Automatic focus control system with backlash correcting arrangement |
Aug. 27, 1985 |
| 4523828 |
Focus detecting device |
Jun. 18, 1985 |
| 4511232 |
Auto-focus camera |
Apr. 16, 1985 |
| 4509841 |
Automatic focusing device |
Apr. 9, 1985 |
| 4488798 |
Automatic focusing device |
Dec. 18, 1984 |
| 4473287 |
Focus detecting device for camera |
Sep. 25, 1984 |
| 4470676 |
Focus detecting device |
Sep. 11, 1984 |
| 4344679 |
Camera with photoelectric focus detecting device |
Aug. 17, 1982 |
| 4182563 |
Focus control system for interchangeable adjustable focus lenses |
Jan. 8, 1980 |
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