Harold P Martin

US Patent:

43113826, Jan 19, 1982

Filed:

Feb 4, 1980

Appl. No.:

6/117859

Inventors:

Galen L. Buckley - Irvine CA
Harold W. Martin - Newport Beach CA

Assignee:

Pyramid Optical, Inc. - Irvine CA

International Classification:

G01C 308
G02B 1702
G02B 5122

US Classification:

356 5

Abstract:

A combined sighting target and bracket adapted for receiving a reflector housing for use with electronic distance measuring instruments in surveying and other civil engineering applications. The unique structure permits adjustment of three parameters that render the present invention generally compatible for use in conjunction with virtually any kind of electronic distance measuring instrument. One such adjustment, namely, vertical displacement between a reflector housing and the sighting target, permits duplication of any offset distance that exists between a telescope and ranging optics of the remotely located measuring instrument. The other adjustment features include elevation and azimuth angle variations that permit orientation of the reflecting device to be virtually normal with respect to the incoming and reflected laser, infrared, or other such energy commonly used by such electronic distance measuring instruments. The unique structure of the present invention permits such vertical and angular adjustments without incurring any substantial error contributions that would otherwise reduce the accuracy of the measurement process.

US Patent:

43435505, Aug 10, 1982

Filed:

May 27, 1980

Appl. No.:

6/153348

Inventors:

Galen L. Buckley - Irvine CA
Harold W. Martin - Newport Beach CA

International Classification:

G01C 308

US Classification:

356 5

Abstract:

A combined sighting target and bracket adapted for receiving a reflector housing for use with electronic distance measuring instruments in surveying and other civil engineering applications. The unique structure permits adjustment of three parameters that render the present invention generally compatible for use in conjunction with virtually any kind of electronic distance measuring instrument. One such adjustment, namely, vertical displacement between a reflector housing and the sighting target, permits duplication of any offset distance that exists between a telescope and ranging optics of the remotely located measuring instrument. The other adjustment features include elevation and azimuth angle variations that permit orientation of the reflecting device to be virtually normal with respect to the incoming and reflected laser, infrared, or other such energy commonly used by such electronic distance measuring instruments. The unique structure of the present invention permits such vertical and angular adjustments without incurring any substantial error contributions that would otherwise reduce the accuracy of the measurement process. Two embodiments of the invention are disclosed; namely a first embodiment for use with an electronic distance measuring instrument in which elevation adjustment is achieved by rotation of the combined ranging optics and telescope about a single common axis; and a second embodiment for use with an electronic distance measuring instrument in which elevation adjustment is achieved by rotation of the ranging optics and telescope about separate axes.