Optical device for determining the location of a reflective target
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 23, 1998
Grant Date -
N/A
app pub date -
Dec 19, 1996
filing date -
Jun 22, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to an optical device by means of which the direction of a graticule may be measured with high precision. To this end, the graticule is illuminated by a spotlight and the light reflecting from it collected by a theodolite telescope and a locating detector. To increase the range and to improve accuracy of measurement, use is made not of a conventional spherical metal graticule but a sphere of transparent material the refractive index n of which is greater than the square root of 2 and smaller than 2.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully