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Class Information
Number: 356/5.09
Name: Optics: measuring and testing > Range or remote distance finding > With photodetection > Of frequency difference
Description: Subject matter that either sends a defined frequency beam or frequency modulates an outgoing pulse or continuous wave optical beam in order to compare the detected return frequency to the transmitted frequency for determining range calibrated frequency differences.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4932775 |
FM laser transmitter |
Jun. 12, 1990 |
| 4928152 |
Process and device for optically measuring the distance and the velocity of a target |
May. 22, 1990 |
| 4927263 |
Position and velocity imaging system using 2-D laser diode array |
May. 22, 1990 |
| 4922307 |
Method and apparatus for improving the measuring accuracy of a micrometer |
May. 1, 1990 |
| 4906092 |
Range doppler self-referencing imaging system |
Mar. 6, 1990 |
| 4902125 |
Optical system having beam amplification |
Feb. 20, 1990 |
| 4895441 |
Method and apparatus for precision ranging |
Jan. 23, 1990 |
| 4893923 |
Doppler laser radar system |
Jan. 16, 1990 |
| 4861158 |
Chirp and Doppler optical gauge |
Aug. 29, 1989 |
| 4861159 |
Dynamic Doppler optical gauge |
Aug. 29, 1989 |
| 4856893 |
Laser distance measuring method and apparatus |
Aug. 15, 1989 |
| 4846571 |
AM-FM laser |
Jul. 11, 1989 |
| 4822164 |
Optical inspection device and method |
Apr. 18, 1989 |
| 4818100 |
Laser doppler and time of flight range measurement |
Apr. 4, 1989 |
| 4812035 |
AM-FM laser radar |
Mar. 14, 1989 |
| 4743110 |
Laser telemetry and Doppler measurement system with pulse compression |
May. 10, 1988 |
| 4729653 |
Method and apparatus for measuring distance by laser beam |
Mar. 8, 1988 |
| 4725841 |
System for interrogating a passive transponder carrying phase-encoded information |
Feb. 16, 1988 |
| 4721385 |
FM-CW laser radar system |
Jan. 26, 1988 |
| 4715706 |
Laser doppler displacement measuring system and apparatus |
Dec. 29, 1987 |
| 4666295 |
Linear FM chirp laser |
May. 19, 1987 |
| 4662741 |
Linear FM chirp laser |
May. 5, 1987 |
| 4611912 |
Method and apparatus for optically measuring distance and velocity |
Sep. 16, 1986 |
| 4594000 |
Method and apparatus for optically measuring distance and velocity |
Jun. 10, 1986 |
| 4521109 |
Passively Q-switched dual laser |
Jun. 4, 1985 |
| 4516853 |
Laser radar adaptive tracking system |
May. 14, 1985 |
| 4515472 |
Agile receiver for a scanning laser radar |
May. 7, 1985 |
| 4515471 |
Scanning laser radar |
May. 7, 1985 |
| 4466738 |
Vibration sensor |
Aug. 21, 1984 |
| 4391515 |
Optical transmitter/receiver apparatus sharing common optics |
Jul. 5, 1983 |
| 4373808 |
Laser doppler attitude measurement |
Feb. 15, 1983 |
| 4340299 |
Optical doppler radar system using a conically scanned laser beam |
Jul. 20, 1982 |
| 4329664 |
Generation of stable frequency radiation at an optical frequency |
May. 11, 1982 |
| 4311384 |
Laser scanning system |
Jan. 19, 1982 |
| 4211485 |
Device for suppressing very close interference echo signals in optical pulse compression radars |
Jul. 8, 1980 |
| 4167329 |
Focussed doppler radar |
Sep. 11, 1979 |
| 4163954 |
High energy coherent pulse source for laser system |
Aug. 7, 1979 |
| 4129041 |
Method and apparatus for receiving ultrasonic waves by optical means |
Dec. 12, 1978 |
| 3968362 |
Optical system for laser doppler homodyne detection |
Jul. 6, 1976 |
| 3967111 |
Pulsed light source discriminator system |
Jun. 29, 1976 |
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