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Class Information
Number: 356/149
Name: Optics: measuring and testing > Angle measuring or angular axial alignment > Apex of angle at observing or detecting station > Artificial reference > Gyroscope or pendulum stabilized optical element
Description: Subject matter where an optical element or reticle is stabilized by a gyroscope or pendulum.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7312863 |
Motion-compensating light-emitting apparatus |
Dec. 25, 2007 |
| 7236346 |
Semiconductor apparatus and method of charging desired number of capacitors |
Jun. 26, 2007 |
| 6724471 |
Arrangement for the vertical orientation of a geodetic instrument |
Apr. 20, 2004 |
| 6714580 |
Current control biasing to protect electrode seals |
Mar. 30, 2004 |
| 6694630 |
Multiple-axis laser emitter with optical beam splitter |
Feb. 24, 2004 |
| 6493952 |
Measuring device subjected to gravitational forces and having a pendulous suspension |
Dec. 17, 2002 |
| 6384420 |
Portable self-leveling laser ray device |
May. 7, 2002 |
| 6313912 |
Laser leveling instrument with a leveling base and fine self-leveling of the laser beam |
Nov. 6, 2001 |
| 6195615 |
Method of mutually aligning bodies and position-measuring sensor therefor |
Feb. 27, 2001 |
| 6137568 |
Optical axis compensator |
Oct. 24, 2000 |
| 6129307 |
Stabilized optical gimbal assembly |
Oct. 10, 2000 |
| 5917587 |
Automatic plumb laser beam generator |
Jun. 29, 1999 |
| 5900931 |
Self-leveling system for optical distance measuring instruments |
May. 4, 1999 |
| 5825555 |
Beam projecting apparatus |
Oct. 20, 1998 |
| 5760932 |
Target for laser leveling systems |
Jun. 2, 1998 |
| 5619802 |
Automatic level and plumb tool |
Apr. 15, 1997 |
| 5617202 |
Diode laser co-linear and intersecting light beam generator |
Apr. 1, 1997 |
| 5552886 |
Laser beam transmitting apparatus |
Sep. 3, 1996 |
| 5541727 |
Automatic level and plumb tool |
Jul. 30, 1996 |
| 5524352 |
Automatic level and plumb tool |
Jun. 11, 1996 |
| 5459932 |
Automatic level and plumb tool |
Oct. 24, 1995 |
| 5438404 |
Gyroscopic system for boresighting equipment by optically acquiring and transferring parallel and non-parallel lines |
Aug. 1, 1995 |
| 5430544 |
Process and an apparatus for correcting the measuring signals of a fiber optic gyro |
Jul. 4, 1995 |
| 5220455 |
Passive, gravity referencing, fluid damped, two stage pendulum optical mount |
Jun. 15, 1993 |
| 5112126 |
Apparatuses and methods for making geophysical measurements useful in determining the deflection of the vertical |
May. 12, 1992 |
| 5087125 |
Equipment for measuring a difference in elevation |
Feb. 11, 1992 |
| 5033848 |
Pendulous compensator for light beam projector |
Jul. 23, 1991 |
| 5029251 |
Transducer for measuring angles of inclination, angular positions and other positions, and apparatus comprising such transducer |
Jul. 2, 1991 |
| 5026157 |
Magnetic motion damping system for pendulous compensator |
Jun. 25, 1991 |
| 4938589 |
Sensor with integrated signal processing for one- to three-dimensional positioning |
Jul. 3, 1990 |
| 4889425 |
Laser alignment system |
Dec. 26, 1989 |
| 4854704 |
Optical automatic levelling apparatus |
Aug. 8, 1989 |
| 4781457 |
Laser surveying equipment |
Nov. 1, 1988 |
| 4776672 |
Multi-paned polygonal lighthouse assembly with improved corner configuration |
Oct. 11, 1988 |
| 4767208 |
Self leveling transmitter for laser alignment systems |
Aug. 30, 1988 |
| 4717251 |
Elevation measurement in high order surveying |
Jan. 5, 1988 |
| 4697876 |
Fiber-optic rotation sensor |
Oct. 6, 1987 |
| 4679937 |
Self leveling transmitter for laser alignment systems |
Jul. 14, 1987 |
| 4664519 |
Angle encoder for encoding the zenithal angle between a variable determined direction and the vertical, in particular for a theodolite |
May. 12, 1987 |
| 4662727 |
Two-axis optical inertial system using a gyro rotor as a stable reference |
May. 5, 1987 |
| 4650324 |
Level Transit |
Mar. 17, 1987 |
| 4650281 |
Fiber optic magnetic field sensor |
Mar. 17, 1987 |
| 4576478 |
Optical instrument for measuring angles |
Mar. 18, 1986 |
| 4448528 |
Portable laser vertical collimator and plumb line indicator |
May. 15, 1984 |
| 4404592 |
Video imagery device, especially for a homing unit |
Sep. 13, 1983 |
| 4398821 |
Instrument for measuring angles |
Aug. 16, 1983 |
| 4393597 |
Stabilized sighting devices for vehicles |
Jul. 19, 1983 |
| 4340271 |
Internal body mounted system for isolation of, in one degree of freedom, a beam projected from an optical system which is subject to rotational vibration |
Jul. 20, 1982 |
| 4315610 |
Optical image stabilizing system |
Feb. 16, 1982 |
| 4302885 |
North finder with optical transfer provision |
Dec. 1, 1981 |
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