| |
 |
|
Class Information
Number: 396/112
Name: Photography > With exposure objective focusing means, focusing aid, or rangefinding means > Optical detail with photoelement system > Double wedge prism
Description: Subject matter wherein the light modifying means includes at least two triangular shaped refracting elements.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7399082 |
Volumetric imaging using "virtual" lenslets |
Jul. 15, 2008 |
| 7232221 |
Volumetric imaging using "virtual" lenslets |
Jun. 19, 2007 |
| 6768867 |
Auto focusing system |
Jul. 27, 2004 |
| 6714244 |
Internal indication of a viewfinder of a camera |
Mar. 30, 2004 |
| 5880461 |
Low noise optical position sensor |
Mar. 9, 1999 |
| 5552594 |
Focus detecting system using a beam splitter to form an image at nominal best focus, slightly in front of best focus and slightly behind best focus |
Sep. 3, 1996 |
| 5084723 |
Focus detecting device |
Jan. 28, 1992 |
| 4745426 |
Light measuring device for a camera |
May. 17, 1988 |
| 4697905 |
Photographic apparatus |
Oct. 6, 1987 |
| 4688920 |
Focus state detecting system |
Aug. 25, 1987 |
| 4634255 |
Focus detection apparatus |
Jan. 6, 1987 |
| 4632532 |
Focus detecting apparatus |
Dec. 30, 1986 |
| 4408853 |
Focus detecting device |
Oct. 11, 1983 |
| 4389107 |
Focusing device for cameras |
Jun. 21, 1983 |
| 4367463 |
Information mark display device |
Jan. 4, 1983 |
| 4265520 |
Focus detecting device in single lens reflex camera |
May. 5, 1981 |
| 4230401 |
Camera focus detecting device |
Oct. 28, 1980 |
| 4223988 |
Camera having a focusing device |
Sep. 23, 1980 |
| 4180309 |
Focal point detecting device for SLR camera |
Dec. 25, 1979 |
| 4171155 |
Method and apparatus for focusing a photographic apparatus |
Oct. 16, 1979 |
| 4147417 |
Optical sensing system for focusing a reflex camera |
Apr. 3, 1979 |
| 4126870 |
Automatic focusing device |
Nov. 21, 1978 |
| 4104652 |
Single lens reflex camera |
Aug. 1, 1978 |
| 4083056 |
Focus detecting device for single-lens reflex cameras |
Apr. 4, 1978 |
| 3953863 |
Method and apparatus for focusing an objective |
Apr. 27, 1976 |
|
|
|
