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Class Information
Number: 356/139
Name: Optics: measuring and testing > Angle measuring or angular axial alignment > Plural scales or different portions of same scale simultaneously observable
Description: Subject matter including means whereby two different angle measuring scales or two different portions of the same angle measuring scale are simultaneously observable.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7561261 |
Ladar stream formatting and processing method |
Jul. 14, 2009 |
| 7414241 |
Laser device |
Aug. 19, 2008 |
| 7411660 |
Laser straight ruler and method for measuring distance and projecting line using the straight ruler |
Aug. 12, 2008 |
| 7291832 |
Optical encoders for position measurements |
Nov. 6, 2007 |
| 7241990 |
Laser device |
Jul. 10, 2007 |
| 7106430 |
Airborne search and rescue scanner |
Sep. 12, 2006 |
| 6975389 |
Deflection angle measuring device, optical signal switching system, information recording and replaying system, deflection angle measuring method, and optical signal switching method |
Dec. 13, 2005 |
| 6822228 |
Laser device |
Nov. 23, 2004 |
| 6796042 |
Survey point indicating instrument |
Sep. 28, 2004 |
| 6661525 |
Method for monitoring the length of constant-wire-length bonds and apparatus therefor |
Dec. 9, 2003 |
| 6496259 |
Optical device providing relative alignment |
Dec. 17, 2002 |
| 6298284 |
Apparatus and method with improved field of view for determining vehicle wheel alignment measurements from three dimensional wheel positions and orientations |
Oct. 2, 2001 |
| 6291815 |
Device for measuring rotation angle of rotary element by unit angles grouped for five units |
Sep. 18, 2001 |
| 6141147 |
Optical unit for image projection and tool incorporating same |
Oct. 31, 2000 |
| 6097480 |
Vehicle interlock system |
Aug. 1, 2000 |
| 6043875 |
Method and device for the measuring of wheel angles |
Mar. 28, 2000 |
| 5815257 |
Portable optical wheel alignment apparatus and method for race cars |
Sep. 29, 1998 |
| 5440500 |
Settable printing apparatus |
Aug. 8, 1995 |
| 5402226 |
Survey apparatus |
Mar. 28, 1995 |
| 4764668 |
System for locating an object provided with at least one passive target pattern |
Aug. 16, 1988 |
| 4730926 |
Accu-right mirror alignment system |
Mar. 15, 1988 |
| H261 |
Optical alignment method for binocular displays |
Apr. 7, 1987 |
| 4445777 |
Optical system of a theodolite |
May. 1, 1984 |
| 4355902 |
Arrangement for determining the errors the vertical axis of a surveying device |
Oct. 26, 1982 |
| 3958885 |
Optical surveying apparatus, such as transit, with artificial light scale illuminating system |
May. 25, 1976 |
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