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Class Information
Number: 356/139.02
Name: Optics: measuring and testing > Angle measuring or angular axial alignment > Star/sun/satellite position indication with photodetection > With reticle or slot
Description: Subject matter including a reticle or aperture slot in an optical path of the photodetector that enables the determination of the angle.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7511804 |
Crossed beam roof target for motion tracking |
Mar. 31, 2009 |
| 7227626 |
Method for determining the current position of the heads of vehicle occupants |
Jun. 5, 2007 |
| 7199872 |
Method and apparatus for ground-based surveying in sites having one or more unstable zone(s) |
Apr. 3, 2007 |
| 7113271 |
Method to accurately measure the angular orientation of a rotating axis to a reference line |
Sep. 26, 2006 |
| 6462810 |
Surveying system |
Oct. 8, 2002 |
| 6274862 |
Arrangement for determining the incidence angle of radiation and especially solar radiation |
Aug. 14, 2001 |
| 5189295 |
Three axis earth/star sensor |
Feb. 23, 1993 |
| H746 |
Solar reference flight roll position sensor |
Feb. 6, 1990 |
| 4810870 |
Sun sensor with periodic pattern reticle and reference phase signal generating means |
Mar. 7, 1989 |
| 4794245 |
Position sensor |
Dec. 27, 1988 |
| 4791297 |
Yaw sensing conical scanner horizon sensor |
Dec. 13, 1988 |
| 4710619 |
Apparatus for generating a signal providing information regarding a radiating source, especially an infrared source |
Dec. 1, 1987 |
| 4397559 |
Apparatus for processing electromagnetic radiation and method |
Aug. 9, 1983 |
| 4018532 |
Sun direction detection system |
Apr. 19, 1977 |
| 3992106 |
Error cancelling scanning optical angle measurement system |
Nov. 16, 1976 |
| 3981588 |
Means and method for determining meridian location and azimuth |
Sep. 21, 1976 |
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